1204results about How to "Guaranteed level" patented technology

The invention discloses a shutter-blind-cavity-and-external-pressure-balanced dual-control hollow-glass built-in shutter. The shutter-blind-cavity-and-external-pressure-balanced dual-control hollow-glass built-in shutter comprises a shutter body, an inner frame, a curtain-sheet-overturning-pulling-rope inner control mechanism, a curtain-sheet-overturning-pulling-rope outer control mechanism, a shutter-blind-lifting-pulling-rope inner control mechanism, a shutter-blind-lifting-pulling-rope outer control mechanism, a curtain-sheet-overturning executing mechanism, a shutter blind and a curtain-sheet overturning pulling rope, wherein the shutter body comprises an upper transverse frame pipe, a lower transverse frame pipe, a left longitudinal frame pipe, a right longitudinal frame pipe, inner glass and outer glass; the inner frame comprises an upper transverse frame strip, a left longitudinal frame strip and a right longitudinal frame strip. The shutter-blind-cavity-and-external-pressure-balanced dual-control hollow-glass built-in shutter is characterized in that upper-transverse-frame-pipe-cavity ventilating holes are formed in the upper-transverse-frame-pipe bottom wall, towards one side of a shutter blind cavity, of the upper transverse frame pipe, a balance-pipe-fixing-base embedded cavity is formed in the upward side of the left end of an upper-left-rotating-corner-inserting-block transverse inserting arm, a balance-pipe fixing base is arranged at the portion corresponding to the balance-pipe-fixing-base embedded cavity, a pair of balance pipes are fixedly inserted onto thebalance-pipe fixing base, the left ends of the pair of balance pipes extend out of the left end face of the upper-left-rotating-corner-inserting-block transverse inserting arm and penetrates througha sealing rubber strip to be communicated with the outside, and the right ends of the pair of balance pipes extend into an upper transverse frame pipe cavity and are communicated with the upper transverse frame pipe cavity. Air pressure in a shutter blind cavity is same as air pressure of the outside.

Disclosed is an inward suction prevented single control hollow glass embedded shutter. The inward suction prevented single control hollow glass embedded shutter comprises a shutter body, an inner frame, inner and outer operating mechanisms, a blind rotating execution mechanism, blinds, a blind rotating traction rope tensioning mechanism and a blind rotating traction rope, wherein the shutter bodyis composed of upper and lower horizontal frame tubes, left and right vertical frame tubes and inner and outer glass; the blind rotating traction rope tensioning mechanism is arranged onto a right bottom corner plug. The inward suction prevented single control hollow glass embedded shutter is characterized in that the bottom wall of one side of the upper horizontal frame tube, which faces towardsto a blind cavity, is provided with upper horizontal frame tube cavity air holes; the upward side of the left end of the horizontal plugging arm of the left upper corner plug is provided with a pressure balancing pipe fixing seat embedding cavity, a pressure balancing pipe fixing seat is arranged corresponding to the pressure balancing pipe fixing seat embedding cavity and provided with a pair ofpressure balancing pipes, the left ends of the pair of pressure balancing pipes extend out the left end surface of the horizontal plugging arm of the left upper corner plug and penetrates through sealing rubber strips to communicated with the outside, and the right ends of the pair of pressure balancing pipes extend into and are communicated with an upper horizontal frame pipe cavity. The can avoids inward suction of the inner and outer glass which is caused by thermal expansion and contraction.

The invention discloses unilateral controlled hollow glass built-in window-shades capable of preventing venetian blinds from sliding down. The window-shades comprise a window body, an inner frame body, inner and outer control mechanisms, blind piece overturning performing mechanisms, the venetian blinds, a blind piece overturning pulling rope tensioning mechanism and blind piece overturning pulling ropes. The window body comprises upper and lower transverse frame tubes, left and right longitudinal frame tubes and inner and outer glass; the inner frame body comprises an upper transverse frame strip and left and right longitudinal frame strips; the blind piece overturning pulling rope tensioning mechanism is arranged on a lower right corner inserting block; and one ends of the blind piece overturning pulling ropes are fixed to the inner control mechanism, the middle parts of the blind piece overturning pulling ropes are connected with the blind piece overturning performing mechanisms andthe blind piece overturning pulling rope tensioning mechanism, and the other ends of the blind piece overturning pulling ropes are fixed to the inner control mechanism. The unilateral controlled hollow glass built-in window-shades are characterized by further comprising an opposite absorbing mechanism used for keeping the inner control mechanism at the position which enables the venetian blinds to be under an upward lifting condition, and the opposite absorbing mechanism is arranged between the lower part of the right longitudinal frame tube and the inner control mechanism. When the venetianblinds are under an upward lifting condition, the opposite absorbing mechanism keeps the inner control mechanism at the descending position, and the condition that the venetian blinds abnormally slidedownward due to the fact that the inner control mechanism abnormally moves upward cannot occur.

A system and method of operating hardware and services to allow participating members to find and establish partnerships, communicate, transact business and share information. The dynamic virtual network comprises the business exchange network, the network authority and the access device. The present invention employs the network authority, a neutral body regulating the trading partners and playing a passive role qualifying participating businesses, ensuring security and integrity, and guaranteeing non-repudiation of business transactions. The access device provides a number of services facilitating direct business-to-business relationships, communications, and transactions. The dynamic virtual network can also provide a set of services giving structure and organization beyond that of the public internet. These services enable participating businesses to find prospective partners, arrange partnerships, communicate with their partners, transact business and share information via the internet, exclusively among partners. The invention provides software and hardware to satisfy the specialized demands of business-to-business commercial transactions.

The invention discloses a water quality automatic sampling system based on a rotor unmanned plane and a method thereof, and applicable to the technical field of water quality sampling and detection. The water quality automatic sampling system mainly comprises a turntable motor (1), a depth detecting sensor (9), a sampling pump (12), a sampling bottle (16), a solenoid valve (17), an unmanned plane (19), a rocker arm (20), and a controller (21); the turntable motor drives the sampling pipe and adjusts the sampling depth; the sampling pipe is connected with a plurality of sampling bottles through a branch, and the sampling bottles are arranged in the middle of the sampling platform base; the platform base is connected with the unmanned plane through the rocker arm; through bending the rocker arm, the flying model and the traction model of the unmanned vehicle can be switched; compensation bending is performed on the rocker arm monitored and controlled on the basis of a gradiograph. The system and the method can realize the organic combination of water quality sampling and the unmanned vehicle, fully use the loading and cruising ability of the unmanned vehicle, effectively keep the balance property of the sampling system, and are featured by fast sampling, convenience, and high efficiency.

The innovation herein proposed describes a plant to produce electricity by the sea waves. The plant is designed to be installed on shore, near shore and offshore scenarios: on the coast line, in shallow waters and in deep waters. The plant is operated by action of the sea waves on a series of floaters (A). The resultant force on each floater (A) acts on a mechanical load amplifier (B) which moves two vertical high pressure piston pumps (C). These pumps (C) send pressurized fresh water to a hyperbaric system (E). The hyperbaric system (E) supplies an outflow water jet through a controlled valve that moves a conventional turbine (G). This turbine (G) connected to the electric generator (H) produce electricity.

A fully-automatic bagged cement loader comprises a guide rail, a horizontal conveying device, a traveling device, an oblique conveying device, a positioning system and a controller, wherein the input end of the oblique conveying device is in butt joint with the output end of the horizontal conveying device, and the output end of the oblique conveying device is in butt joint with a loading and stacking main machine which is arranged on the traveling device through a lifting device in a hoisted mode; the loading and stacking main machine comprises a distributing device, a bag unloading device, a stacking device and a support, the distributing device, the bag unloading device and the stacking device are sequentially installed on the support, the input end of the distributing device is in butt joint with the output end of the oblique conveying device, the number of the output ends of the distributing device is at least two, each output end of the distributing device is in horizontal butt joint with one input end of the bag unloading device, each output end of the bag unloading device is in vertical butt joint with one input end of the stacking device, each output end of the stacking device conveys bagged cement to a specific position, and all the cement bags conveyed to specific positions by the stacking device are arranged into a line in the horizontal direction.

The invention relates to a method and device for ceramic denture 3D printing suitable for light curing molding and belongs to the technical field of tooth making. According to the method, through scanned tooth data and data processing, data of each layer of image after a data model to be printed is sliced are obtained and transmitted to a control system, a liquid supplementing action is controlled through the control system so that the liquid level of a base material can be always kept at the preset height, the base material is configured by photosensitive resin and ceramic powder according to the ratio, and the control system controls completion of stirring of supplemented liquid after liquid supplementing; and a bottom projection manner is adopted for printing, slice images of each layer of image are projected successively, light source exposure is conducted, and curing is completed layer by layer. The method and device have the beneficial effects that the making process is simple, the making efficiency is high, the consumption of materials is low, the making precision is high, and the match is good.

The invention discloses a spreader stabilizing mechanism of a container gantry crane, comprising a drum group, a pulley block, a spreader upper frame and a steel wire rope group wound on the drum group and the pulley block; the steel wire rope forms four congruent inverse triangles at the space between the spreader upper frame and a pulley frame; the bottom points of the four inverse triangles are distributed at the four corners of the spreader upper frame symmetrically; included angles which are formed by the planes of the four inverse triangles and the moving direction of a cart and a trolley are all acute angles. Therefore, in the moving direction of the cart and the trolley, the motion damping of the four space triangles exists, thus reducing the swing of the spreader; when the load of the spreader is not balance and the swing of opposite angles is generated, namely, twisting and vibration are generated, the space triangle forms the motion damping in the diagonal direction of the upper surface of the spreader upper frame and forms damping component in three directions of the space, thus offsetting the swing of the opposite angles. The invention has simple structure, convenient maintenance and use and high safe reliability.

The invention relates to a single-scraper bidirectional powder-paving device and method for melting forming of a laser selection area. The structure is simple, the powder-paving efficiency is high, the powder-paving efficiency is guaranteed and the powder cleaning and maintenance are more convenient. The device comprises a forming platform, a left powder-conveying cabin, a right powder-conveying cabin and a powder paving slot; the powder paving slot comprises a slot tank, a scraper, a baffle and a reversing plate; a left reversing jacking pin and a right reversing jacking pin for driving the reversing plate to rotate and reverse are respectively arranged on the two sides of the forming platform; in a reversing process, the left reversing jacking pin or the right reversing jacking pin is incontact with the reversing plate before the powder paving slot moves to the left powder-conveying cabin or the right powder-conveying cabin, and besides, the rotation of the baffle under the drivingof the reversing plate is completed when the powder paving slot moves to the position under the powder-conveying cabin. According to the bidirectional powder-paving method provided by the invention, the bidirectional powder-paving device is utilized to complete the powder throwing in the melting forming process of the laser selection area, the powder paving operation is immediately performed afterthe melting forming of the laser selection area, the route is not wasted, the working time is not wasted, the comprehensive arrangement for the powder-paving and forming operations is realized and the efficiency is higher.

The present invention discloses a medium and low voltage power distribution network comprehensive evaluation method based on reliability. By establishing the restraint layer indexes based on reliability and determinacy criterions and a hierarchical index system of the comprehensive evaluation indexes integrating the economy, the reliability, the electric energy quality and the expansibility as one, a power distribution network planning scheme is firstly carried out the restraint layer evaluation to guarantee the reliability level of the power distribution network planning scheme, and then the power distribution network planning scheme having the optimal comprehensive level is determined on the basis of guaranteeing the reliability level of the power distribution network planning scheme. The medium and low voltage power distribution network comprehensive evaluation method based on the reliability is especially suitable for evaluating a medium and low voltage power distribution network focusing on the reliability level.

The invention provides a Mecanum wheel omnidirectional mobile vehicle and a working method of the Mecanum wheel omnidirectional mobile vehicle, relates to an omnidirectional mobile vehicle provided with a Mecanum wheel and a working method of the omnidirectional mobile vehicle which are particularly applicable to realizing omnidirectional movement of the vehicle in a narrow space, and provides the Mecanum wheel omnidirectional mobile vehicle with four wheels uniformly grounded and having capability of keeping a frame horizontal to the greatest extent and the working method of the Mecanum wheel omnidirectional mobile vehicle. The Mecanum wheel omnidirectional mobile vehicle comprises a frame, a power supply, a controller and Mecanum wheels, wherein the Mecanum wheels are connected to the bottom of the frame through an air bag suspending device; the air bag suspending device comprises a damper, an air bag, an air supply, an air valve and a height adjusting device; tops of the damper andthe air bag are fixedly connected to the bottom of the frame; an axle of the Mecanum wheels is connected to the bottom ends of the damper and the air bag; and the air bag is connected with the air supply through the air valve. According to the Mecanum wheel omnidirectional mobile vehicle, closed-loop control is performed over the horizontality of the frame and the distance from the frame to the wheels, so that the wheels provided by the invention are adaptable to the application requirements of special industry.

The invention relates to an electric automatic levelling brace for realizing multipoint electric automatic levelling, and aims to provide an electric automatic levelling brace with large lifting weight, rapid and reliable touchdown, good repeatability of levelling precision, high precision, safety, convenience, convenient maintenance and simple electric connection. The electric automatic levelling brace comprises a levelling bearing disc connected with a levelling brace cylinder body and a direct current servo motor with an electric control unit. The top of the levelling brace cylinder body is provided with a transmission chain which is connected with an output shaft of a speed reducer and a leading screw pair for rotary motion; the leading screw pair drives a levelling telescopic cylinder body manufactured with a screw and the levelling bearing disc fixedly connected with the leading screw pair together to do linear lifting motion; a microswitch for feeding back the lifting position to an external control system is arranged on the cylinder wall of the levelling brace cylinder body; a small displacement triggering shaft records the moving position, triggers the microswitch at a triggering point and transfers an electrical signal of the lifting position of the levelling brace to the outside; and the small displacement triggering shaft is connected external control equipment through the microswitch and forms a closed loop levelling system with the servo motor connected with the speed reducer .

The invention discloses a remote-controlled mountain tractor, which comprises a frame (9), an engine (12), a gearbox (6), a clutch, a driving wheel (5), a driven wheel (10), a crawler belt (16), and a hydraulic drive device (14), the signal receiving and processing device (15), is characterized in that: the left and right sides of the frame are symmetrically connected with a hydraulic pressure differential height device for adjusting the left and right balance of the body. The invention applies the remote control technology to the tractor, and each action can be controlled by the signal transmitting device, realized by the hydraulic drive device, and the operation is simple. Because the machine can remotely control the lifting of the height difference device on both sides according to the terrain conditions at any time, maintain the level of the fuselage and prevent rollover, and can also increase the height of the frame by simultaneously lifting the hydraulic cylinder to realize the cultivating operation of the conventional plow. It fully adapts to the working environment in rural areas, especially in mountainous and hilly areas, and completes operations such as arable land, dry farming variable water application, ridge mulching, and harvesting.

The invention relates to a servo motor type undercarriage retractile follow-up loading system and a loading method of the loading system, belonging to the field of test technology of undercarriages. The servo motor type undercarriage retractile follow-up loading system mainly comprises a test bed (1), a hanger plate (4), a main supporting pole clamp (5) and a retractile actuator cylinder clamp (6), which form a clamping bearing mechanism; the servo motor type undercarriage retractile follow-up loading system also comprises a support frame (2), a vertical servo motor (25), a ball screw (16) and a lifting table (19), which form a loading direction follow-up mechanism; the servo motor type undercarriage retractile follow-up loading system also comprises a fixed table (14), a horizontal servo motor (10), a speed reducer (11), a disc (12), a steel rope (13), a steering pulley (17), a steering pulley support (18), a loading plate (9) and a fixed pulley (8), which form a load size simulation mechanism. According to the invention, the difficult problem of asymmetrical load in the retractile process is solved, the loading direction of loads is ensured to be horizontal all the time, the test precision is improved and the test reliability is enhanced.

The invention relates to a detection method for the quality of an electric power pipe gallery reinforcing steel bar mesh based on machine vision and a detection device. The detection method comprises the steps of reinforcing steel bar quantity detection, reinforcing steel bar spacing detection and reinforcing steel bar diameter detection, and is characterized in that reinforcing steel bar quantity detection adopts technologies such as image stitching and Hough transform straight line detection to count the quantity of reinforcing steel bars within a meter marker and judges whether the reinforcing steel bars are qualified or not; reinforcing steel bar spacing detection adopts an edge extraction technology, fits each reinforcing steel bar by using a least square method, calculates the distance between adjacent reinforcing steel bars in a rectangular detection area and judges whether the reinforcing steel bar spacing of the section is qualified or not; and reinforcing steel bar diameter detection is similar to reinforcing steel bar spacing detection, the difference lies in that double edges of each reinforcing steel bar are fit by using the least square method in the rectangular detection area, and the diameter of each reinforcing steel bar is calculated so as to judge whether the reinforcing steel bar diameter of the section is qualified or not. The detection device comprises a scalable triangular frame, a double-pipe guide rail, a stepper motor, a level gauge and a cradle head loaded with an ultra high definition camera. According to the invention, information of the reinforcing steel bar mesh of a project under construction can be collected in advance before reinforced concrete is poured.

The invention discloses a semi-automatic wicking machine comprising a workbench, a fixing plate and a tin melting furnace. The semi-automatic wicking machine is characterized by further comprising a wicking groove, a soldering flux groove, a wiring plate, a guide rail, a first up-and-down moving device, a horizontal driving device and a second up-and-down moving device. The wicking groove is arranged above an opening of the tin melting furnace, the first up-and-down moving device is connected with the wicking groove, the soldering flux groove is arranged above the workbench, the second up-and-down moving device is connected with the wiring plate, the back end of the second up-and-down moving device is connected with the guide rail arranged on the fixing plate, and the horizontal driving device arranged on the fixing plate is connected with the second up-and-down moving device. The invention solves the problem that woven flare opening and bulging usually generate, the wicking length isinconsistent, and the sizes of finished produces are unstable due to the hard guarantee of the appearance and the quality of products because wire rods are wicked manually in prior art, and provides a semi-automatic wicking machine with unity in wicking, order appearance and good size consistency.

The invention discloses a live fish conveying vehicle. At least a pair of live fish tanks is disposed in the carriage of the conveying vehicle. Each pair of the live fish tanks is provided with a circulating pump and a filter. An oxygen filling machine of the conveying vehicle continuously fills oxygen to each live fish tank. A monitoring system can monitor the oxygen content in each live fish tank through oxygen probes. Each live fish tank is in contact with a cold water pipe. The monitoring system controls a code water machine to operate. A temperature sensor is disposed in each live fish tank. The live fish conveying vehicle has the advantages that the water in each live fish tank can circulate through the filter, waste and metabolite in water can be filtered, the monitoring system can monitor the oxygen content in each live fish tank can be monitored through the oxygen probes, oxygen can be filled into the live fish tanks through the oxygen filling machine, an auxiliary oxygen filling machine and a liquid oxygen storage tank, the water environment in the fish tanks can be continuously improved for a long term, and the oxygen level for living of the live fish can be maintained.

The invention discloses a method for modifying an ink-jet printer into a flat printer. The method comprises the steps as follows: dismounting a casing and a top cover, taking out a machine core, and remaining a printing and ink-jetting system and a circuit control system as well as a driving wheel, a driven wheel and a driving motor in a paper feeding driving system; adding a guiding system which can enable printing medium to move linearly and comprises a linear guide rail perpendicular to a printing vehicle guide rail and a guide plate reciprocating along the linear guide rail, wherein the printing vehicle guide rail is placed right above the guide plate; adding a guide plate driving mechanism of which the input shaft is fixed with the driven wheel; and adding a machine frame which comprises a base, a fixing device fixed on the base and used for fixing the printing and ink-jetting system, and a support device for the guide plate driving mechanism. The invention is applicable to printing equipment and the like.

The invention relates to a planer multiple degree of freedom controllable loading mechanism. The raise-rise arm of the loading mechanism is a planer single degree of freedom controllable mechanism, wherein one end of the raise-rise arm is hinged on the chassis, and the other end is hinged a bucket; and a bucket rollover mechanism is linked between the bucket and the chassis. By using the invention, the problem that the hydraulic system of the traditional hydraulic loading machine has high demand on parts and short service life and leaks oil, etc can be solved.

The invention discloses a rack and pinion hydraulic pressure horizontal loading retraction and extending test table mechanism and belongs to the technical field of undercarriage test. The rack and pinion hydraulic pressure horizontal loading retraction and extending test table mechanism mainly comprises a loading supporting mechanism, a hydraulic pressure loading and retarding mechanism, and a simulation horizontal force loading mechanism; wherein the loading supporting mechanism consists of a vertical shaft frame, an upper connection seat (8), a lower connection seat (23), and a lifting plate (9); and the hydraulic pressure loading and retarding mechanism consists of a linkage turntable (27), a reduction gear (26), a rack (25) and a loading actuator cylinder (24); and the simulation horizontal force loading mechanism consists of an arc guide rail (18), a first movable pulley (17), a second movable pulley (19), a fixed pulley (21) and a wire rope (20). During test, the rack and pinionhydraulic pressure horizontal loading retraction and extending test table mechanism loads an undercarriage by simulating aerodynamic load and solves the problems of insufficient travel of the loadingactuator cylinder and loading speed, guarantees that the lateral force is always in a horizontal direction, and is more close to an actual stress model.

The invention discloses a split type hoisting method for a 5MW land type wind generating set. According to the method, a cabin is hoisted in a split mode, and split into a cabin body, a generator, a maintenance crane and a top housing according to the weight and the boundary dimension of all parts of the cabin and the hoisting capacity of a main hoisting machine; after the cabin is split, software is utilized for analyzing and recalculating the gravity center position to adjust the design of a hoisting sling, and therefore the level and the safety of cabin hoisting are ensured. The main hoisting machine is utilized for sequentially installing the cabin body and the generator in place and sequentially installing the maintenance crane and the top housing in place. According to a general scheme, a 1600t crawler crane is needed when a whole hoisting scheme is adopted for a 5MW fan, while by means of the implementation of the method, the construction requirement can be met by adopting a 1000t crawler crane, and therefore the construction cost is effectively saved.

The present invention discloses a reactive compensation coordination control method during the DC emergency power support process and belongs to the technical field of power systems and automation. According to the technical scheme of the invention, according to a current running state and a to-be-lifted DC power, a reactive power, required to be consumed additionally for the DC system after the active power thereof is boosted, is estimated. Before the DC boosting process, filters or parallel capacitors of a corresponding number are put to use in the emergency manner. After the DC boosting process, reactive-load compensation equipment is put to use additionally according to the actual control manner of a convertor station. Meanwhile, the AC bus voltage of the convertor station is monitored. As a result, the condition that the AC voltage of the convertor station is out of limit due to the usage of the reactive-load compensation equipment can be avoided. The method can effectively improve the amount of the actual emergency power support in the DC large modulation mode. Meanwhile, the power imbalance problem of the power grid of a receiving end can be effectively relieved, and the safety and the stability of the power grid are improved.

The invention discloses an online double-sided roller coating process and device for producing high-brightness panels by using a solvent-free UV coating. The process comprises the following steps: uniformly coating the solvent-free UV coating on plastic panels molded on an extruder by virtue of a roller coater, covering a release protection film on the surface with the coating on plastic panels by virtue of a laminating machine, flatly pressing, performing UV curing on the plastic panels, curing the coating by virtue of ultraviolet light penetrating through the protection film, cooling, stripping the surface release protection film and the panels, thereby obtaining the hardened wear-resistant coating layer with high glossiness and high flatness on the surface on the surface of the plastic panels. The process and the device disclosed by the invention are suitable for online double-sided roller coating or online single-sided roller coating, the PET films or other transparent and semi-transparent films serving as the release protection films are compounded with the panels, and the surface leveling problem generated by online roller coating of the plastic panels is solved.

A system and methods that enables and utilizes the conversion of an individual's ability to access multiple secure accounts to establish and validate the individual's digital primary identity. The control for the digital primary identity validation is user-centric so that the individual controls the amount of information supplied and therefore the level of assurance achievable. The level of assurance can be added to the digital primary identity. An identity card for digital primary identity validation can be used online or in-person. Validation and level of assurance is reviewed regularly or continuously. Levels of assurance can be increased by validating primary sources of identification.

The invention relates to an elevator weighing device which comprises a rope hitch plate and a middle supporting plate. A plurality of rubber drums which are distributed side by side are arranged between the rope hitch plate and the middle supporting plate, a plurality of rope hitch springs corresponding to the rubber drums are arranged at the upper end of the middle supporting plate, an eddy current sensor, an overload detector switch, a rope loosening detector switch support and a rope loosening detector switch are arranged on the rope hitch plate, and an eddy current sensor magnetism blocking plate, an overload detector switch touch plate and a rope loosening detector switch touch plate are installed on the middle supporting plate. The elevator weighing device further comprises a plurality of rope hitch pull rods corresponding to the rubber drums and the rope hitch springs, the rope hitch pull rods sequentially penetrate through through holes of the rope hitch plate, the rubber drums, the middle supporting plate and the rope pitch springs, one end of each rope hitch pull rod is provided with a loosening-fastening nut for fixing the corresponding rope hitch spring, and the other end of each rope hitch pull rod is connected with the corresponding elevator lifting car lateral hauling rope through a connecting assembly. The elevator weighing device is simple in structure, high in lifting car weighing detection accuracy, low in cost, capable of saving shaft space, convenient to install, debug and operate and high in safety performance.

The invention relates to an all-terrain hybrid power chassis, and belongs to the field of agricultural machinery. The chassis is characterized in that the chassis is in a symmetrical structure, and comprises a trolley body and four motion units with the same structural size, wherein each motion unit comprises a liftable driving wheel mechanism and a track swing arm mechanism; liftable driving wheels are driven by a hub motor; the track swing arm mechanisms are driven by rear wheels; power is provided by a diesel engine; four track swing arms are configured on the inner sides of wheels; and the track swing arm mechanisms can achieve rotation motion of tracks and can swing around central shafts of track driving wheels. The chassis has the characteristics of quick wheel motion, can adjust the lifting heights of the driving wheels, and can adjust a ground clearance; during transverse working in a sloping field, the lifting heights of the driving wheels on the left and right sides can be adjusted, and the levelness of a chassis frame is maintained, so that side turn of working machinery is avoided; and obstacle-crossing and climbing motion in a complicated farmland environment can be achieved by the track swing arms or compound motion of the track swing arms and the driving wheels.

The invention discloses a concealed and embedded assembly, which comprises a lower main body, an embedded box and a water test piece, wherein the lower main body is provided with a cold water inlet flow passage, a hot water inlet flow passage, a mixed water flow passage and at least one water outlet flow passage, and the cold water inlet flow passage, the hot water inlet flow passage, the mixed water flow passage and the water outlet flow passage are respectively provided with an inlet and an outlet; the embedded box comprises a box body and a fixed frame which is used for holding the box body, and a cold water hole, a hot water hole and at least one water outlet are formed in the side wall of the box body; the bottom surface of the water test piece is provided with a first passage and a second passage; the lower main body is held in the box body; the water test piece is held in the box body and is arranged on the lower main body in a covering to communicate the water outlet flow passage and the mixed water flow passage with the cold water inlet flow passage or the hot water inlet flow passage. Since the lower main body is held in the box body, is separated from cement and is quite convenient to disassemble, assemble and maintain. The embedded box can be shared by shower, bathtub and wash basin type temperature-controlled, electronic and single-handle products. The application scope is wide.

The invention discloses a blood sample collecting device. The collecting device comprises a collecting tube, wherein an orifice of the collecting tube is provided with a sealing rubber plug, the outside of the rubber plug is provided with a protective cap, the collecting tube is filled with additives, the additives are composed of a blood anticoagulation, a hemocyte nucleic acid stabilizing agent, a blood plasma nucleic acid stabilizing agent, and a pH buffer solution; the blood anticoagulation is one or more of oxalate, heparinate and citrate, the pH buffer solution is one of glycine-sodium hydroxide-hydrochloric acid buffer solution; the hemocyte nucleic acid stabilizing agent is one or more of allantoin, 5,5-dimethyl hydantoin and oxazolidine; the blood plasma nucleic acid stabilizing agent is N-acetic acid azomethine, N-(3-acetic acid-amylamine)azomethine. The blood sample collecting device simultaneously contains the hemocyte nucleic acid stabilizing agent and the blood plasma nucleic acid stabilizing agent, and does not contain free aldehyde material, so that the blood sample can be stored in long term at normal temperature, and the free nucleic acid level of the blood sample can be stabilized, and the completeness of the free nucleic acid can be maintained.

The invention discloses a small self-balancing delivery robot, which includes a walking part, a base, an automatic telescopic device, a loading platform, an angle sensor, a controller and an operating handle. The device is installed above the base, and the operating handle used to control the movement of the walking part is installed on the loading platform or the base. The loading platform is equipped with an angle sensor for detecting the inclination of the loading platform. The angle sensor is connected with the automatic telescopic device through the controller. When the controller receives that the angle sensor detects that the loading platform is tilted, it controls the automatic telescopic device to expand and contract until the angle sensor detects that the loading platform is level. The invention greatly reduces the labor intensity, and can ensure the level of the load-carrying platform on roads with different inclination angles, so as to ensure that the goods are not damaged due to inclination.