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436results about How to "Won't fail" patented technology

On-orbit maintenance method of satellite-borne embedded software

The invention relates to an on-orbit maintenance method of satellite-borne embedded software for carrying out on-orbit maintenance on embedded software on a spacecraft through an increment uploading manner. The method comprises the following steps: (1) generation of increment uploading data: after determining that the on-orbit maintenance is carried out to the satellite-borne software, encoding and linking the updated satellite-borne embedded software to generate a binary file, comparing the updated binary file with the binary file corresponding to a program running on the orbit, and generating an increment file; (2) uplink loading of the increment uploading data: loading the increment file sub-package from the ground into a satellite-borne storage area, receiving a pack of uploading pack, and extracting the effective data from the uploading pack and writing the effective data into a preset increment file storage area until all the uploading packs are received; and (3) recombination running of increment uploading data: carrying out comparing and recombination on the uploaded increment file with the binary file primarily stored in the program storage, generating a new program, loading the new grogram into a memory, executing the new program, and finishing the on-orbit maintenance of the embedded software.
Owner:SPACE STAR TECH CO LTD

High-viscosity and low-melting-point metal conductive paste and preparation method and application thereof

The invention relates to a high-viscosity and low-melting-point metal conductive paste and a preparation method and an application thereof. The high-viscosity and low-melting-point metal conductive paste is characterized in that the metal conductive paste is prepared by uniformly mixing low-melting-point metal and metal powder based on a certain proportion and by a certain method. The metal powder can improve the viscosity and electrical conductivity of the low-melting-point metal. By adopting the high-viscosity and low-melting-point metal conductive paste of the invention, the contact resistance between electronic components can be significantly reduced, the contact surface temperature of electronic components can be reduced, and the working life of electronic components can be prolonged as much as possible. The high-viscosity and low-melting-point metal conductive paste of the invention has high electrical conductivity, a remarkable electric conduction effect and a long service life, and can be widely used in the technical fields of electric power and energy.
Owner:BEIJING EMIKON TECH DEV

Washing machine

The invention provides a washing machine for an electric detection for the weight unbalance owing to deflection of the washings to one side or the like, wherein the abnormal vibration of the longitudinal shaking is detected by a first detection mechanism and a second detection mechanism and the abnormal vibration of the transverse shaking in the high speed rotation is detected by a third detection mechanism. The first detection mechanism determines whether a washing dewatering tank has the unbalance by comparing a difference of the rotation speed at a prescribed interval and a prescribed threshold when the rotation speed of a motor is increased to a low speed superior target rotation speed. The second detection mechanism determines whether the washing dewatering tank has the unbalance by comparing a difference between a duty ratio reduction and the reference duty ratio reduction and the threshold, wherein the duty ratio is used for maintaining the low speed superior target rotation speed. In the third detection mechanism, the change of the duty ratio in the high speed rotation is observed and threshold is switched based on the reference duty ratio so as to stop control of the motor.
Owner:HAIER GRP CORP +1

Reduction clutch for washing machine and washing machine

The invention discloses a reduction clutch for a washing machine and the washing machine. The reduction clutch comprises an input shaft, an input shaft sleeve, a brake wheel, a reducer, a dewatering shaft, an output shaft, a clutch device and a shell. The input shaft sleeve is installed on the input shaft in a sleeving mode, the dewatering shaft is installed on the output shaft in a sleeving mode, the reducer is installed on an inner cavity of the brake wheel, and the input shaft, the input shaft sleeve, the brake wheel and the output shaft are connected with the reducer respectively. The reducer is a double planetary gear train and comprises a first planetary gear train and a second planetary gear train, and the first planetary gear train and the second planetary gear train use a same planet carrier. The input shaft sleeve and the second planetary gear train are connected into one, the dewatering shaft and the brake wheel are connected into one, the output shaft is connected with input shaft in a transmission mode through the first planetary gear train, and the dewatering shaft is connected with the output shaft in a transmission mode through the brake wheel and the second planetary gear train. The conversion between the washing condition and the dewatering condition is controlled through the clutch device. The reduction clutch for the washing machine and the washing machine have the advantages that the structure is simple and compact, the manufacturing cost is low, the transmission is safe, reliable and efficient, the service life is long, and the noise is low.
Owner:QINGDAO HAIER WASHING MASCH CO LTD

Cleaning-free solid-state scaling powder for aluminum low-temperature soldering and preparing method

ActiveCN104607826AFacilitate spreadingBarrier against electrochemical corrosionWelding/cutting media/materialsSoldering mediaActive agentAluminium
The invention discloses cleaning-free solid-state scaling powder for aluminum low-temperature soldering and a preparing method. According to the weight percentage, the cleaning-free solid-state scaling powder comprises raw materials of 6.5%-18% of metal film-forming agents, 5%-18% of organic carriers, 0.1%-1.8% of corrosion inhibition agents and the allowance of film removing active agents. The film removing active agents are composite salt of organic amine and acid. The cleaning-free solid-state scaling powder is suitable for lead-free solder wires with solid-state scaling powder contained in a core, and the powder can be used for automatic welding, manual soldering iron welding or flame spraying welding. The core-contained solder wires prepared with the scaling powder have the advantages that tinning speed is high, splashing is low, irritating smoke is avoided, post-welding residues do not have corrosiveness, a welding point has great electrochemical corrosion resistance, a contact service time is long, the wires are suitable for assembling welding of an aluminum coated layer circuit board and an aluminum soldering pin electronic element and brazing of an aluminum electric cable wire, an aluminum radiator and aluminum heat exchanging equipment.
Owner:SOUTH CHINA UNIV OF TECH

Vacuum sucker

The invention provides a vacuum sucker and relates to a vacuum sucker achieving convenient and rapid picking and placing of a small diameter annular watch component on an automatic watch production line. A connecting plate, at least 2 metal suckers and at least 2 rubber suction nozzles are arranged on the vacuum sucker. An upper plate and a lower plate are arranged on the connecting plate. The upper plate is connected with the lower plate through a fastening piece in a locking mode. A thread through hole is arranged in the upper plate. A groove is arranged in the lower surface of the upper plate. A hollow cavity is formed between the upper plate and the lower plate. At least 2 metal sucker installing holes are arranged in the lower plate. The thread through hole and the hollow cavity are communicated with the metal sucker installing hole. A metal sucker is connected with each metal sucker installing hole. A rubber suction nozzle is connected with each metal sucker. Center through holes are uniformly arranged in the metal sucker and the rubber nozzle. Due the facts that a separated type structure is adopted, the connecting plate and the metal sucker are all made of metal materials,the vacuum sucker is convenient to machine, low in cost, convenient to dismantle and convenient to clean. The component damage is easy to change. The vacuum sucker is strong in practicality.
Owner:XIAMEN UNIV

Excavator and bucket tooth connection assembly thereof

The invention provides an excavator and a bucket tooth connection assembly thereof. The bucket tooth connection assembly comprises a tooth top, a tooth holder, a pin bush and a tooth pin, wherein the tooth top is provided with an inner cavity and a first mounting hole; the first mounting hole is formed on the wall of the inner cavity; the tooth holder is provided with a head part and a second mounting hole; the second mounting hole is formed in the head part; the head part is matched with the inner cavity; the pin bush is provided with a pin bush body, a reinforcing part, a hinge pin hole, a placement groove, a positioning groove and a guide part and is arranged in the second mounting hole; the tooth pin is provided with a pin body and a hinge pin; the hinge pin is provided with a convex tongue part; the tooth pin is inserted into the first mounting hole; the hinge pin is inserted into the hinge pin hole; the tongue part rotates the tooth pin after passing through the placement groove; the tongue part passes through the guide part to be clamped in the positioning groove so as to fixedly connect the tooth top and the tooth holder. The bucket tooth connection assembly provided by the invention can provide excellent support in the case of impact and vibration; technical difficulty is reduced when the tooth top and the tooth holder are made; matching accuracy is improved; the bucket tooth connection assembly is convenient to manufacture and is convenient to install and disassemble; meanwhile, the phenomenon that the tooth top is lost in the use process is avoided.
Owner:TAIYUAN HEAVY IND

Supercharged diesel engine EGR (Exhaust Gas Recirculation) system intelligent cooling device

The invention discloses a supercharged diesel engine EGR (Exhaust Gas Recirculation) system intelligent cooling device, comprising an EGR mixer (3), a mechanical water pump (4), an electric control fan (5), a radiator (6), a thermolator (11), an EGR cooler (13), an electric control EGR valve (14), an engine ECU (Electronic Control Unit) (18), a temperature sensor (19), an exhaust gas intercooler (8) and an electric control two-position three-way valve (12), wherein an inlet of the electric control two-position three-way valve (12) is communicated with a gas outlet of the EGR cooler (13); outlets in two ends of the electric control two-position three-way valve (12) are respectively communicated with an exhaust gas inlet of the EGR mixer (3) and a gas inlet of the exhaust gas intercooler (8); a gas outlet of the exhaust gas intercooler (8) is communicated with the exhaust gas inlet of the EGR mixer (3); the electric control EGR valve (14), the electric control fan (5), the temperature sensor (19) and the electric control two-position three-way valve (12) are respectively connected with the engine ECU (18) electrically.
Owner:DONGFENG COMML VEHICLE CO LTD

Automobile door-plate wire-harness protective-sleeve rubber composition and processing technology thereof

The invention discloses an automobile door-plate wire-harness protective-sleeve rubber composition and a processing technology thereof. The composition is prepared from the following raw materials in parts by weight: 40-60 parts by weight of natural rubber, 10-30 parts by weight of cis-1,4-polybutadiene rubber, 20-30 parts by weight of ethylene-propylene rubber, 4-9 parts by weight of an activator, 0.5-2.5 parts by weight of stearic acid, 4-6 parts by weight of an anti-ageing agent, 1.5-3.5 parts by weight of a coupling agent, 25-45 parts by weight of a reinforcing agent, 5-15 parts by weight of a plasticizer, 1.5-3 parts by weight of a vulcanizing agent, and 0.5-2.0 parts by weight of a promoter. The processing technology successively comprises steps of first-segment rubber mixing, first standing, second-segment vulcanizing, second standing and the like. The composition possesses excellent heat resistance, ageing resistance, ozone resistance, high strength and high elasticity, does not pollute vehicle body, guarantees a protective sleeve to not fail, not rupture and be not frequently replaced because of damage after long-term repeated tension, and helps to reduce cost loss.
Owner:SHANGHAI ZHONGLI INVESTMENT

Fault tolerance method and device for disk arrays

The invention provides a fault tolerance method and device for disk arrays, wherein the method comprises the following steps: when a disk in a disk array goes wrong, adding a hot spare into the disk array so as to replace the disk which goes wrong, and carrying out reconstruction on the disk array into which the hot spare is added in strips; when a reconstructed current strip has a reconstruction read error, recording the identifier of the current strip into a non-volatile random access memory (NVRAM), and skipping over the current strip, and continuing to carry out reconstruction from the next strip until the reconstruction on the disk array is completed; and aiming at the identifier of each strip recorded in the NVRAM, repairing the reconstruction read error of the strip corresponding to the identifier of the strip by writing, and deleting the identifier of the strip from the NVRAM after the repairing is completed. By using the method and device provided by the invention, the occurrence of problems caused by the reconstruction read errors or service read errors of the disk array in a degraded state can be avoided.
Owner:NEW H3C TECH CO LTD

Route equalization method of multi-jump cooperative energy of body area network under condition of ensuring service quality

The invention discloses a route equalization method of multi-jump cooperative energy of a body area network under the condition of ensuring service quality, comprising the following steps of: arranging a plurality of nodes on a human body; dividing the energy conditions of the nodes into a full grade, a fuller grade, a medium grade, a lower grade and an empty grade; dividing businesses generated by the nodes into a business grade with a high real-time requirement and a business grade with a low real-time requirement; when establishing a route, calculating the sum of energy consumed by other nodes in each path except for a source node and a target node and introducing energy factors in the calculating process; selecting a path with minimum sum of the consumed energy as a route for the businesses with lower real-time requirement, and selecting a path with least jumping number as a route for the businesses with higher real-time requirement; and also adopting a cooperative transmission method in a transmission process after establishing the route. The measures finally ensure that the energy of each node in the network is equally consumed, thereby ensuring the communication of the network and prolonging the survival period of the network.
Owner:SOUTH CHINA UNIV OF TECH

Microcapsule self-fire prevention tunnel concrete lining

ActiveCN105221165ARealize automatic fire preventionSynchronous explosion-proofUnderground chambersDust removalFiberReinforced concrete
The invention provides a self-fire prevention tunnel concrete lining structure based on the microcapsule technology. The self-fire prevention tunnel concrete lining structure comprises a common layer and a self-fire prevention layer, wherein the common layer is a conventional concrete layer, the self-fire prevention layer is formed by concrete mixed with reinforced fibers, anti-burst fibers and hot melting microcapsules, and each hot-melting microcapsule comprises a capsule shell and fireproof media filling the capsule shell. Compared with a common reinforced concrete lining structure, the self-fire prevention tunnel concrete lining structure has the advantages that the self-fire prevention ability of the tunnel lining structure is brought into full play while structural size is not changed and structural strength and rigidity are not lowered, synchronization of burst prevention and thermal insulation, the synergic effect of fire prevention and bearing and automatic fire prevention triggered by fire heat are achieved, and the tunnel lining structure is good in durability, high in long-term economic benefits and suitable for the whole life cycle fire prevention design of tunnel concrete linings.
Owner:TONGJI UNIV

Atomization device and ultrasonic humidifier

The invention discloses an atomization device and an ultrasonic humidifier, wherein the atomization device comprises a transducer, an atomization enhancing part and a buoyancy part, wherein the atomization enhancing part is arranged in liquid above the transducer in a floating manner and comprises a guide cylinder with a through hole, an axial center line of the through hole is consistent to an axial center line of the transducer, and the buoyancy part is connected with the guide cylinder and can floats on the surface of the liquid above the transducer. According to the invention, the existing ultrasonic humidifier is revolutionarily improved, when the liquid above the transducer is at any liquid level height, the atomization device and the ultrasonic humidifier provided by the invention can generate good atomization effect, thereby being adapted to a use environment with any liquid level height, greatly increasing the atomization efficiency, and having the advantages of high adaptability, simple structure, low material consumption, low manufacture cost, convenience in installation, easiness in cleaning and the like.
Owner:佛山市汉立电子科技有限公司

Vibration-proof device

The invention provides a vibration-proof device which guarantees that vibrating equipment supported by the vibration-proof device cannot be damaged and have faults even if being applied with strong horizontal force during earthquake, and the vibrating equipment can also have the same vibration-proof effect after the earthquake as that before the earthquake. The vibration-proof device used for reducing the transmission of vibration direction supporting bodies of the vibrating equipment comprises a base plate (2), a cover plate (3), a vibration absorption component (5) and a connecting and guiding component (6), wherein the base plate (2) is arranged on the supporting bodies such as a foundation; the cover plate (3) is configured above the base plate (2) and used for mounting the vibrating equipment; the vibration absorption component (5) is inserted among the plates and can be elastically deformed up and down; the connecting and guiding component (6) is used for connecting the base plate (2) and the cover plate (3) in a mode of not separating the base plate (2) and the cover plate (3) by more than a preset distance and guiding the cover plate (3) supported by the vibration absorption component (5) to have a displacement along the vertical direction; and a vibration resistant mechanism (7) is arranged in the connecting and guiding component (6) and used for limiting the relative horizontal displacement of the base plate (2) and the cover plate (3) within a certain distance.
Owner:TOZEN CORP

High-temperature high-pressure self-sealing gate valve with double flat shutter board

The invention relates to a high-temperature high-pressure self-sealing dual-plane gate valve, which comprises a valve, a valve cover, an operation screw and an operation hand wheel on the valve cover. Wherein, the valve has a gate plate connected to the operation screw, and sealing surface matched with the gate plate; said valve comprises two separate gate plates and a central pushing rod; two gate plates are opposite, whose outer sealing surfaces are parallel, and inner surfaces are uniform distributed with several compress springs; the central pushing rod via its lower end and the clamp groove at the inner sides of two gate plates is clamped between two gate plates, while the upper end via the connector is connected to the operation screw. Via the operation screw, the pushing rod via its lower end can move said two gate plates up and down along the sealing surface; and the compress spring compresses the two side sealing surfaces of gate plates on the sealing surface of valve, to confirm the sealing effect and prolong the service life.
Owner:江苏远洋阀门智控股份有限公司

Data paging method and apparatus

The invention discloses a data paging method. The method comprises: obtaining a page code X of a to-be-displayed webpage; calculating the total page number Y of resource data pages of the to-be-displayed webpage; determining a page code of a target data page corresponding to the page code X of the to-be-displayed webpage according to a preset corresponding relationship; and sending target data corresponding to the target data page to a client. Correspondingly, the invention further discloses a data paging apparatus. Compared with the prior art, the technical scheme provided by the invention can avoid the occurrence of an avalanche phenomenon of a cache, so that the cache hit ratio of data in each page can be increased, and the performance and data loading efficiency of the cache are improved.
Owner:ALIBABA (CHINA) CO LTD

Yarn breakage alarm device of yarn pretension regulating mechanism of computer-based flat knitting machine

The invention discloses a yarn breakage alarm device of a yarn pretension regulating mechanism of a computer-based flat knitting machine, belonging to the field of computer-based flat knitting machines. The yarn pretension regulating mechanism comprises a substrate provided with a tension-spring tensile force regulating slider, a fixed shaft, yarn guiding arms and yarn guiding rods. The yarn breakage alarm device comprises a yarn breakage alarm signal rod, and the yarn breakage alarm signal rod is arranged on the fixed shaft and corresponds to the upside of the yarn guiding rod. The yarn breakage alarm device is characterized by further comprising a regulating knob and a signal collector, wherein one side of the regulating knob towards a turntable is matched with the turntable, one side of the regulating knob towards the signal collector is fixedly provided with a magnet, the signal collector is fixed on a box base and corresponds to the magnet, and the signal collector is electrically connected with a controller of the computer-based flat knitting machine through a circuit. The yarn breakage alarm device has the advantages of being capable of playing the role in timely alarming and shutting down, guaranteeing the reliability and non-malfunction of yarn breakage alarm, and favorably preventing increased work load to operators due to artificial cleaning.
Owner:JIANGSU JINLONG TECHNOLOGY CO LTD

Blocking plate type locking device for automotive adjusting arm

The invention discloses a blocking plate type locking device for an automotive adjusting arm. The automotive adjusting arm comprises a casing (1) and a worm shaft (4) which is arranged inside the casing (1) and used for adjusting the brake clearance and the external end of the worm shaft (4) is provided with tooth shapes and extends outside the casing (1). The blocking plate type locking device for the automotive adjusting arm is characterized in that the locking device is arranged on the adjusting arm; the locking device comprises a locking bolt (5), a single ear anti-motion washer (6) and a blocking plate (3); tooth-shaped grooves are formed in the blocking plate (3); the blocking plate (3) is connected onto the casing through the single ear anti-motion washer (6) and the locking bolt (5); the tooth-shaped grooves of the blocking groove (3) are meshed with the tooth shapes which are arranged at the external end of the worm shaft; the brake clearance is adjusted in an equant mode by rotating the worm shaft for a circle. The blocking plate type locking device for the automotive adjusting arm is simple in structure, convenient to install and installed after the adjusting arm is installed, gaps are accurately adjusted through the tooth-shaped groove which is formed in the blocking plate, the retreating problem generated during the automobile braking is solved, and the safe reliability is high.
Owner:江苏联升汽车部件有限公司

Multi-purpose ultrafast electric diffraction apparatus

The invention relates to a multipurpose ultrafast electron diffraction device, which comprises a laser source, an electron gun capable of generating ultrafast electron beams, a sample chamber, an electron diffraction image detector and a vacuum pumping system, wherein a cathode and an anode are arranged in the electron gun; the cathode is plated with a metallic film; the center of the anode is provided with an anode keyhole; an insulating ring is arranged between the cathode and the anode; the electron gun and the sample chamber are connected through an electron beam channel; the outer circumference of the electron beam channel is sleeved with a magnetic coil; a joint of the electron beam channel and the sample chamber is provided with an electron beam channel keyhole; the diameter of the electron beam channel keyhole is between phi 1 and phi 2 millimeters; and a vacuum system comprises an electron gun vacuum system connected with the electron gun, as well as a sample chamber vacuum system connected with the sample chamber. The multipurpose ultrafast electron diffraction device provided by the invention solves the problems that the prior ultrafast electron diffraction device can not simultaneously adapt to solid-phase and vapor-phase electron diffraction experiments, can not regulate energy, is serious in the distortion of an electric field near the anode, and is invalid in photocathode.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI

Photocatalytic membrane and its preparation process

The invention relates to photocatalysis film, which comprises attaching down-to-up mesh carrier, paint layer, silane coupling agent layer, and nano TiO2 film. The preparation method comprises: coating paint on said carrier; before drying, coating said coupling agent, static in air till solidified; dispersing the nano TiO2 in C1-C4 alcohol water solution to form 1~25wt% suspension or sol; coating the suspension or sol on said coupling agent, drying, and obtaining the film. This product can photocatalytic decompose a plurality organics in water and has wide application.
Owner:WUHAN UNIV

Wireless multimedia sensor network data query method based on state machine

The invention discloses a data management system based on a state machine, which is a data searching and management proposal in a wireless multimedia network, and is mainly used for solving data acquisition and data processing problems in the wireless multimedia network. A data management system in a wireless multimedia sensor network based on the state machine is developed and characterized in that: a search task is formed by various parameters through combination and encapsulation and different search applications are corresponding to different parameter combinations; the functions of network nodes are controlled by the state machine and the function decision of nodes depends on the current state; a primary search task is collaboratively fulfilled by multiple nodes in various states; the whole network has nodes in various states during the life cycle of the network and the same node can only be in one state at a specific time and the state of a node can change with the change of self conditions and transfer from one state to another; nodes of various states can carry out a routing strategy flexibly according to the timeliness and precision requirements of the search task.
Owner:NANJING UNIV OF POSTS & TELECOMM

A preparation method of titanium dioxide fiber with photocatalytic function and nano-polycrystalline structure

The invention discloses a preparation method of titanium dioxide fibers with a photocatalysis function and a polycrystalline nanostructure. The preparation method comprises the following steps: respectively diluting titanium tetrachloride and potassium acetate, which are taken as raw materials, in ethanol, mixing at 0-10 DEG C under the condition of stirring to generate titanium acetate and potassium chloride, filtering to remove potassium chloride by taking advantage of the property that potassium chloride is insoluble to ethanol so as to acquire filtrate of ethanol in which titanium acetateis dissolved, concentrating the filtrate to obtain a titanium acetate sol spinning solution, centrifuging and spinning to obtain precursor fibers, and performing steam activation thermal treatment toobtain the titanium dioxide fibers. The preparation method disclosed by the invention has the advantages of lower raw material cost, simpler sol production process and pollution-free preparation process.
Owner:NANJING UNIV OF SCI & TECH

Holographic solar photovoltaic battery and manufacturing method thereof

The invention provides a photovoltaic battery which comprises one or a plurality of material layers which are of micro-nano holographic optical structures. The micro-nano holographic structures are used as light-pervious layers, so that reflection of incident light on light incident planes is reduced and dependency of the photovoltaic battery on angles of the incident light is reduced. Light can be trapped and also transmitted. Action areas between light and active layer photoelectric conversion materials can be greatly increased on an action layer. A complete reflecting mirror structure is adopted on a back electrode, light transmitted to the back electrode can be reflected back to the photoelectric conversion materials, and meanwhile with surface plasmon polariton resonance effect applied, light intensity can be increased, so that useful effect of the light and the photoelectric conversion materials is increased and improved from one to more angles, and photoelectric conversion efficiency of the photovoltaic battery is increased by a large scale. With the above one or more functional structures adopted, various photovoltaic battery structures can be manufactured and the aim of improving the performance of the photovoltaic battery can be achieved.
Owner:SHENZHEN NAHUM-ELI OPTICAL TECH INC

Slowdown clutch for washing machine

The invention discloses a slowdown clutch for a washing machine. The slowdown clutch comprises an input shaft, an input shaft sleeve, a brake wheel, a speed reducer, a dewatering shaft, an output shaft, a lower shell and a clutch device, wherein the speed reducer is installed in an inner cavity of the brake wheel, the dewatering shaft and the brake wheel are connected into a whole, the input shaft, the input shaft sleeve, the brake wheel and the output shaft are all connected with the speed reducer, the speed reducer is a double-planet gear train composed of a first planet gear train body and a second planet gear train body, the input shaft sleeve and a wheel carrier of the second planet gear train body are connected into a whole, and the input shaft sleeve is movably connected with the brake wheel; the clutch device comprises a positioning disc fixedly installed on the lower shell, a torque transmission shaft sleeve fixedly installed on the input shaft, a clutch disc installed on the input shaft sleeve and capable of being connected with or disconnected from the positioning disc and the torque transmission shaft sleeve, and a clutch control mechanism used for controlling the clutch disc to be connected with or disconnected from the positioning disc and the torque transmission shaft sleeve. The slowdown clutch has the advantages of being simple and compact in structure, low in manufacturing cost, safe and reliable in transmission, efficient, long in service life and low in noise.
Owner:QINGDAO HAIER WASHING MASCH CO LTD

Tool and method for preventing fall in well

The invention discloses a tool and a method for preventing fall in a well. The tool comprises an upper connecting head having an oil pipe internal thread and a dovetail groove conical surface, one-way blocks accommodated in the dovetail groove conical surface and capable of relatively moving along the dovetail groove conical surface, a block base capable of pushing the one-way blocks to upwards move, an intermediate connecting head positioned below the upper connecting head, a mandrel arranged between the upper connecting head and the intermediate connecting head and used for bridging the upper connecting head and the intermediate connecting head, an outer barrel connected with the intermediate connecting head at the upper end and used for accommodating counterweight steels inside, and a lower connecting head connected with the lower end of the outer barrel. When a pipe column is normally produced, the tool dose not anchor a casing; only when the pipe column suddenly falls in the well, the anchoring is started to prevent the continuous descending of the pipe column, and the casing and the pipe column are effectively protected; the weightlessness and the hydraulic power are dually started; the mechanical structure is simple, and is not invalid for a long time in the well; and when the pipe column is out of control to fall in the well, the starting is rapid, and the support is reliable, so that the anchoring is easily relieved.
Owner:金湖县支点石油科技有限责任公司

Fluid pump driven by compressed air

InactiveCN101560966AWon't failSimple maintenance and installationPiston pumpsPositive-displacement liquid enginesEngineeringPiston
A fluid pump driven by compressed air comprises a central body, a central shaft, a reversing shaft, membranes, air chambers, fluid chambers, a valve ball, a fluid inlet, a fluid outlet, etc. The central shaft and the reversing shaft are installed on the central body; a membrane is respectively installed at the two ends of the central shaft; the membranes are fixed at the two ends of the central shaft by membrane splints; and the two ends of the reversing shaft are also respectively connected on a left membrane splint and a right membrane splint. The membranes are clamped between a shell and a pump body; and the two membranes are sealed into a left air chamber, a right air chamber, a left fluid chamber and a right fluid chamber between the shell and the pump body; the reversing shaft controls the horizontal movement of a piston and respectively charges the two air chambers, and pushes and presses the fluid chambers by the membranes to lead the fluid to flow from the fluid inlet into the fluid chambers and then out of the fluid outlet. As the fluid pump which is driven by compressed air is provided with the reversing shaft, the movement of the piston is directly controlled by the compressed air but does not fail, and the maintenance and installation are convenient.
Owner:赵宽学

Glass fibre reinforced plastics concrete composite pipeline and method for producing the same

The invention relates to a complex pipeline of glass-steel concrete and a preparation method thereof. The complex pipeline of glass-steel concrete includes a concrete layer. The inner wall of the concrete layer is provided with an internal glass-steel layer and the outer wall of the concrete layer is provided with an external glass-steel layer made by winding process. The external glass-steel layer comprises a plurality of hoop fibre winding layers or a plurality of hoop fibre winding layers and crossed fibre winding layers or a plurality of hoop fibre winding layers and axial fibre winding layers. The preparation method of the complex pipe of the glass-steel concrete includes: making the internal glass-steel layer; making the concrete layer tightly combined with the internal glass-steel layer on the outer wall of the internal glass-steel layer; making the external glass-steel layer on the outer wall of the concrete layer by the winding process. The complex pipeline of glass-steel concrete of the invention has the advantages of good mechanical property, high erosion resistance, low flow resistance and low manufacture cost.
Owner:赵泉国 +1

Data synchronization method and device

The invention discloses a data synchronization method and device. The method comprises the steps that a first server receives a write request, wherein the first server is matched with a first database, according to the write request, data corresponding to the write request is written to the first database, the written data is loaded into a first cache of the first server as data to be synchronized, according to the data to be synchronized in the first cache, cache synchronization data is generated and sent to a second server, so that the second server writes the data to be synchronized into a second cache of the second server according to the cache synchronization data, and data synchronization is completed. Through the method, it can be effectively ensured that data in the second cache is obtained in real time and updated synchronously, the situation cannot occurs that the data of the second cache is invalid because the data is not updated for a long time.
Owner:ADVANCED NEW TECH CO LTD

Water power spiral-flow type ballast water electrolysis disinfection device for ballast water monitoring system

The invention provides a water power spiral-flow type ballast water electrolysis disinfection device for a ballast water monitoring system. The water power spiral-flow type ballast water electrolysis disinfection device has the advantages of high treatment efficiency, large capacity, continuous operation, regardless density of entered particulates, no stoppage, simple and convenient flow control mode, simple and easy maintenance and low cost. The water power spiral-flow type ballast water electrolysis disinfection device comprises a shell, a ballast water inlet and a ballast outlet, and is characterized in that a vortex finder is arranged in the shell; an electrode configured for the vortex finder and an electrode arranged on the inner wall of the shell form an anode and a cathode; the lower end of the electrode configured for the vortex finder is provided with a through hole; and the electrode configured for the vortex finder is hollow, and is communicated with the ballast water outlet through a liquid outlet pipeline.
Owner:WUXI BRIGHTSKY ELECTRONICS

A sorting structure of integrated circuit testing and sorting machine

The invention discloses a grain sorting mechanism of an integrated circuit test handler. The mechanism at least comprises a circuit flow channel, an air cylinder, a front retaining rod and a rear retaining rod, wherein the front retaining rod and the rear retaining rod act on the circuit flow channel and the air cylinder; the front retaining rod is connected with an L-shaped connecting piece which is fixed on an air cylinder shaft by a screw; the air cylinder shaft is arranged in the cylinder body of the air cylinder; the front retaining rod and the rear retaining rod are provided with a front support and a rear support; an optical axis and an optical axis groove are formed between the front retaining rod and the rear retaining rod; and the front retaining rod is provided with a threaded hole through which a grain sorting pressure block can be fixed on the front retaining rod by a screw. The grain sorting mechanism is driven by a translation air cylinder, so the use cost is reduced effectively.
Owner:HANGZHOU CHANGCHUAN TECH CO LTD
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