161results about How to "No tangle" patented technology

The invention discloses an aircraft inertial navigation combination double-shaft self-calibration device, which comprises a pedestal, an outer frame shaft system and an automatic locking device mounted on the pedestal, an inner frame shaft system mounted on the outer frame shaft system, an aircraft inertial navigation combination connected to the inner frame shaft system, and infrared sensors for determining the rotation positions of the outer and inner frame shaft systems. The outer frame shaft system includes an outer frame, the two sides of which in the longitudinal direction are a sliding end and a locking end respectively. The inner frame shaft system includes inner frames arranged on two sides of the aircraft inertial navigation combination. The inner frames on the two sides are respectively provided with an inner frame shaft and an inner frame supporting rod that are respectively mounted on the lateral two sides of the outer frame by rolling bearings. The automatic locking device consists of a composite screw installed on the pedestal through angular contact bearings. The longitudinal two sides of the aircraft inertial navigation combination are equipped with a movable fluted disc and a push rod respectively. By means of automatic rotation of the inner and outer frame shaft systems, the device of the invention achieves self-calibration of the inertial navigation combination in the aircraft, and guarantees reliable strapdown between the aircraft inertial navigation combination and the aircraft through the automatic locking device.

The invention relates to a headset with a head band suspended on the head, in particular to a headset with earflaps capable of rotating and translating relative to the head band. The headset with the earflaps capable of rotating and translating relative to the head band comprises the head band and a pair of the earflaps arranged on the left and right ends of the head band, wherein audio circuit boards and loudspeakers are arranged inside the earflaps; the head band is an opened hoop with elasticity; the left end and the right end of the head band are respectively inserted into the pair of the earflaps; rotating and translating structures which enable the earflaps to do rotating and translating motions relative to the head band are arranged between the end parts of the earflaps and the earflaps; and the rotating and translating structures are positioned inside the earflaps. The headset with the earflaps capable of rotating and translating relative to the head band, provided by the invention has the advantages of concise appearance structure, good generality and comfortableness and long service life and solves the problems that the traditional headset can not combine the generality and the comfortableness and movably connected parts are easy to seize to affect the service life of the headset as adjustment structures for adjusting the position of the earflaps are positioned outside the earflaps.

The invention relates to a water surface environment-friendly vessel, in particular to a multifunctional cleaning vessel for river channels. The vessel comprises a hull and a PLC photoelectric control system. Paddle wheel propulsion systems are mounted on the both sides of the middle part of the hull. A driving control room is arranged on the bow deck of the hull. A collection and unloading device is arranged on the bow of the hull. A garbage storage device is mounted on the deck in the middle of the hull. When the collection and unloading device is in an unloading state, the front end of a conveyor belt assembly is tilted upwards, and a garbage storage cabin moves towards a stern, when the front end of the conveyor belt assembly is tilted upwards to a certain height, the garbage storage cabin is restored to the bow, and a band carrier assembly is located above the conveyor belt assembly at the moment. According to the invention, a collection device is changed into the collection and unloading device, so that the size of the hull is decreased; and the bow is aligned to the shore or dock for unloading, so that rear-view reversing is not needed. The stern is provided with an all-rotary hydraulic excavation and grasping device, so that the river bottom silt can be excavated, and garbage heavily accumulated in the river channels can also be collected.

The invention relates to BOPET (Biaxial oriented Polyethylene Terephthalate) ultraviolet shielding master batch. The BOPET ultraviolet shielding master batch is prepared from the following raw materials in parts by weight: 70 to 90 parts of polyethylene terephthalate, 1 to 5 parts of a dispersant, 5 to 20 parts of a coloring agent, 10 to 20 parts of a nano-grade ultraviolet absorbent and 5 to 10 parts of meta-aramid fibers. According to the BOPET ultraviolet shielding master batch provided by the invention, the coloring agent is ground through a high-speed grinding machine; the aramid fibers are added and the nano-grade ultraviolet absorbent is matched, so that a dispersion effect of the coloring agent and the ultraviolet absorbent is good; meanwhile, the fibers are also dispersed well and have no tangling phenomenon; the filtering performance is good and a BOPET ultraviolet shielding film prepared from the BOPET ultraviolet shielding master batch has a ultraviolet shielding rejection rate reaching 100 percent, and the film haze is less than 2; the master batch is used for producing the BOPET ultraviolet shielding film; a net replacing period is long, and film-forming performance is good. The invention further relates to a preparation method of the BOPET ultraviolet shielding master batch.

The invention discloses municipal domestic waste bag-breaking crushing equipment mainly comprising a feeding device, a bag-breaking crushing device, a driving device, a clearing device, a bulk waste outlet, a small waste outlet, an electric protective device, and the like, wherein a roller raft inside the bag-breaking crushing device is provided with a toothed sheet; and the rotary roller raft and the toothed sheet can break bags of upper mixed wastes multiple times and sufficiently crush organic matters, and therefore the problems of bag breaking and selective crushing in waste sorting are thoroughly solved. The municipal domestic waste bag-breaking crushing equipment disclosed by the invention doses not forcedly crush integral hard objects (such as bricks, stones, glass bottles, and the like), which can be directly recovered, in the wastes, thereby the influence of brick and stone crushed slag on the recycling of the wastes is prevented, the manufacturing cost of the equipment can be effectively reduced, and the operating cost (the abrasion of the toothed sheet, crushing energy consumption, and the like) of the equipment can be reduced; the roller raft and the clearing device for the toothed sheet can make the broken bags free from winding, thereby ensuring the equipment to continuously and stably operate; in addition, the equipment can also be additionally provided with a further sorting device, an air purification device, and the like for improvement, thereby the integral technological level of the equipment is increased.

The invention relates to a shaftless propeller which is characterized by comprising a shell (1), end covers (2), a rotating wheel (4), a propeller (5), a driving shaft (6), a driving wheel (7) and a toothed belt (8), wherein the two sides of the shell (1) are connected with the end covers (2); the rotating wheel (4) is connected between the end covers (2) by a rolling bearing (3); the rotating wheel (4) is internally and fixedly provided with the propeller (5); the shell (1) is also provided with the driving shaft (6) which is provided with the driving wheel (7); and the driving wheel (7) is connected with the rotating wheel (4) by the toothed belt (8). The propeller fixed on the rotating wheel is driven by the driving wheel arranged on the driving shaft through the toothed belt, so that the shaftless drive is realized by the shaftless propeller; and the shaftless propeller has the characteristics of being large in thrust, low in noise, free from winding, good in directionality and the like.

The invention relates to an electric curtain machine. The electric curtain machine comprises a motor, a transmission device and a double-rail aluminum alloy machine box with the -shaped cross section and is controlled manually with one button, capable of performing limiting automatically, provided with a built-in minitype clutch device and capable of driving one curtain (a window shade or a gauze shade) or simultaneously driving two curtains (window shades or gauze shades). The electric curtain machine overcomes the defects existing in the situation that a motor and a transmission device cannot simultaneously drive double rails and two curtains. A minitype alternating current gear motor, a clutch driving device with a major functional piece arranged in a hollow wheel hub of a driving wheel, a driven wheel device with the tension capable of being adjusted, a nickel-plated chain, nylon travel idler wheels, nylon idler wheels, nylon pulleys, a travel limiting switch and stainless hooks are integrated inside and outside the double-rail aluminum alloy machine box. According to the electric curtain machine capable of being operated by hand after power failure, the chain is made to make horizontal reciprocating motor in the machine box through frontward and backward rotation of the motor so that the one or two curtains below the double rails can be driven to be opened or closed and stopped in a single direction or in double directions and can make the two curtains be opened or closed simultaneously.

The invention provides an automatic balloon releasing system for ground 8-level wind. The system comprises an automatic balloon releasing square chamber, a weather radar machine room and an ultrasonic wave wind detecting instrument; the automatic balloon releasing square chamber comprises a balloon releasing chamber, a control chamber, a lift-off detecting device and a collecting chamber; the balloon releasing chamber is used for releasing the lift-off detecting device; the control chamber is used for coordinating and controlling the operation of the system; the collecting chamber is able to detect and control the hydrogen pressure, flowing speed and charging volume of hydrogen; the ultrasonic wind detecting instrument issued for detecting the wind speed and wind direction at field on real time; the weather radar machine room is used for remotely monitoring the operation of the system on real time. With the adoption of the automatic balloon releasing system for the ground 8-level wind, the weather balloon can be normally released under 8-level wind; the system is relatively high in automation degree and is of important significance on disaster prevention and reduction.

Provided is a fishing line guide having a mounting foot which, although having a small thickness and a small length, has high strength. A fishing line guide (200) has: at least one support leg (230) extending from a ring holding section (220); a mounting foot (240) located at the termination end of the support leg (230) and mounted to a fishing rod; and a reinforcement groove (250) formed in the mounting foot (240). The mounting foot (240) has: a lower surface coming into contact with a part of the fishing rod; an upper surface (242) located on the side opposite the lower surface in the thickness direction; one end (243) connecting to the termination end of the support leg (230); and the other end (244) located on the side opposite said end (243) in the longitudinal direction. The reinforcement groove (250) is located in the lower surface of the mounting foot (240) and extends in the longitudinal direction of the mounting foot (240) from said end (243) toward the other end (244). A part of the support leg (230) and the mounting leg (240) consist of a metallic material.

The invention relates to an outdoor hanging type emergency fireproof escape capsule for a high-rise building, which solves the problems of complex structure as well as poor safety reliability and fire resistance existing in the present escape capsule. The escape capsule is positioned in an escape capsule housing; the escape capsule is connected with an outdoor wall body; and the escape capsule is connected with a bracket fixed on the wall body through a sinking device. The escape capsule has simple structure, reasonable design, convenient operation, safety, reliability, high rescue efficiency and high speed, can resist various bad environments, and is suitable for all kinds of people, especially the senior, the weak, the sick and the disabled and acrophobes.

The invention relates to an automatic wire winding system. The automatic wire winding system is used for a charging pile, and comprises a pushing mechanism. The pushing mechanism is connected with a charging gun on the charging pile. The pushing mechanism drives the charging gun to be reciprocated along a horizontal direction. The automatic wire winding system further comprises a lifting mechanism. The lifting mechanism is connected with the charging gun. The lifting mechanism drives the charging gun to be upward and downwards moved in a vertical direction. The automatic wire winding system iscapable of realizing automation of a charging process, more convenient in user operation, and better in user experience.

An ecological plant curtain makes a reader breathe fresh air when freely reading, recording, communicating, acquiring information from the internet and the like in a reading room and an information sharing space, a quiet, peaceful and comfortable learning environment is obtained, and various kinds of discomforts and diseases caused by pollution of the reading room and the information sharing space are prevented. In order to achieve the purpose, according to the technical scheme, the ecological plant curtain is composed of spraying curtain boxes and ecological climbing plants. The ecological plant curtain is characterized in that the ecological plant curtain is planted in the reading room and the information sharing space of a library, the green climbing plants and bamboo are selected as the ecological plants, and a spraying planting technology is adopted.

The invention relates to a lamp, in particular to a craftwork lamp with a rotatable luminous source. The specific technical scheme is that the craftwork lamp with the rotatable luminous source comprises a lamp holder, a transparent lampshade and the luminous source, wherein the lampshade is erected on the lamp holder; the luminous source is arranged in the transparent lampshade; the lamp holder is fixedly connected with the transparent lampshade and is provided with a conducting disc and a rotating disc which are fixedly connected; the end face, facing towards the rotating disc, of the conducting disc is provided with an annular fixed contact; the rotating disc is provided with an elastic movable contact which is attached to the annular fixed contact for conduction; the luminous source is electrically connected with the conducting disc; the elastic movable contact is riveted with the rotating disc through a copper sheet; a motor which is in linkage with the rotating disc is arranged in the lamp holder; a luminous source mounting strip which is in linkage with the motor or the rotating disc is arranged in the transparent lampshade and is electrically connected with the rotating disc; the luminous source is arranged on the luminous source mounting strip. By using the technical scheme, the craftwork lamp with the rotatable luminous source, which has the advantages of convenience in disassembly and assembly, rotatable luminous source and simple structure, is provided.

The invention discloses a hot rolling device for producing non-woven fabric. The device comprises a top-layer plate, sub-gears and non-slip rubber rings; brackets are installed below the top-layer plate, a rotating rod is arranged at the inner sides of the brackets, the outer side of the rotating rod is provided with an upper pressing roller, the outer surface of the upper pressing roller is provided with a destaticizing layer, a division pipeline is installed at the inner side of the destaticizing layer, and a sliding shaft is connected to the right side of the division pipeline; a vapor conveying pipeline is installed at the right side of the sliding shaft, a water tank is connected to the right side of the gas conveying pipeline, a water inlet is formed in the upper portion of the watertank, an electric heating piece is installed in the portion below the water inlet, and a display window is formed in the front end of the electric heating piece. According to the hot rolling device for producing the non-woven fabric, the water tank and a heating pipe are installed, different from existing non-woven fabric hot pressing devices which are heated only in a single mode, the device uses water vapor and the heating pipe for double heating, the double surfaces of the non-woven fabric are heated evenly, and the production quality of the non-woven fabric is improved.

The invention relates to a cotton mixing machine, and particularly discloses a multi-bin cotton mixing machine. The multi-bin cotton mixing machine comprises a machine box and a cotton storage bin. The cotton storage bin is arranged inside the machine box and is of a multi-bin structure. A cotton distributing channel is arranged above the cotton storage bin and is respectively communicated with openings in the upper portions of bin bodies of the cotton storage bin, the front side of the cotton distributing channel is provided with a horizontal cotton inlet, and a cotton feeding draught fan is arranged in the cotton inlet. Mesh holes are distributed in the side walls of the cotton storage bin, an interlayer area is formed between the side walls of the cotton storage bin and the corresponding side walls of the machine box, the upper portion of the front side wall and the upper portion of the back side wall of the machine box are respectively provided with a dust discharging port, and the dust discharging ports are respectively provided with an impurity removing draught fan. The lower portion of each bin body is provided with a pair of rollers and a beater, wherein the beater is located under the rollers. A cotton mixing channel is arranged at the bottom of the inner side of the cotton storage bin. The bottom of the back side wall of the machine box is provided with a horizontal cotton outlet, the horizontal cotton outlet is communicated with the cotton mixing channel, and the cotton outlet is provided with a cotton suction draught fan. Compared with the prior art, the cotton mixing machine has a better cotton mixing effect.

The invention discloses a full-automatic optical fiber insertion loss and return loss test instrument and method. The full-automatic optical fiber insertion loss and return loss test instrument comprises a central processing unit and further comprises a clock chip which can provide the time reference. The central processing unit is connected with a wavelength division multiplexer through a 1310 nm light transmitting module and a 1550 nm light transmitting module. The signal output end of the wavelength division multiplexer is connected with an optical divider, wherein the output end of the optical divider is connected to the front end face of a tested wire jumper, and the return loss signal end of the optical divider is connected with a return loss test module which is in information transmission with the central processing unit. The clock chip is connected with the return loss test module and the central processing unit and provides the reference time for the return loss test module and the central processing unit. After the full-automatic optical fiber insertion loss and return loss test instrument and method are adopted, the aim of simultaneously testing optical performance of an optical fiber patch cord on the wavelength of 1310 nm and the wavelength of 1550 nm. Reflection values of different end faces can be distinguished, the aim of preventing optical fiber winding is achieved, test is convenient and reliable, optical fibers can be prevented from damage in the test process, and product test efficiency is greatly improved.

A three-side turning color screen which is high in safety and fine in service effect comprises a frame and a triangular pipe. A conductor fixing plate is fixedly mounted on the frame, a triangular cap is mounted at the end of the triangular pipe and corresponds to the conductor fixing plate vertically, a driving system is arranged in the frame, the triangular cap is in transmission connection with the driving system, rotary conductors are mounted on the triangular cap fixedly, fixed conductors are fixedly mounted on the conductor fixing plates and correspond to the rotary conductors vertically, the rotary conductors and the fixed conductors are in relative rotation slidable connection. The lateral side of the triangular pipe is provided with grooves, and surface-mounted LED lamps are fixedly connected in the grooves and connected with the rotary conductors electrically. A common three-side turning is integrated with an LED display screen technically, and a transmission structure of the common three-side turning screen is utilized, so that three pictures can be changed automatically in daytime, and only one picture is displayed at night. The picture is provided with a plurality of grooves, and multiple surface-mounted LED lamps corresponding to the grooves are arranged in each groove.

A device for supporting and positioning of a cleaning terminal of a photovoltaic array cleaning vehicle comprises a working arm set and a movable base. The movable base comprises a slewing device and a horizontal moving device, and is installed on a device bottom rack. The working arm set is installed on the movable base and includes an arm set base, a main arm, an end arm with execution terminal installation interface, an adapter rocker assembly, a push-pull rod, a main arm pitching hydraulic cylinder and an end arm posture-alignment hydraulic cylinder, wherein the root of the main arm is hinged to the arm set base; the main arm pitching hydraulic cylinder is hinged between the main arm and the arm set base; the end arm is hinged to one end of the main arm; the adapter rocker assembly is hinged to the position between the end and root of the main arm; the push-pull rod is hinged between the end arm and the adapter rocker assembly; the end arm posture-alignment hydraulic cylinder is hinged between the adapter rocker assembly and the arm set base. The device can meet the demand for cleaning any side of the vehicle, the structure is simple, the interface is distinct, the degree of automation is set reasonably, and the device is neat in appearance, flexible to operate, convenient to control and high in adaptability.

The invention provides a method for designing a single-screw axial-flow pump impeller. The method provides a design formula of the main geometric parameters of the impeller such as the diameter D1 of an impeller inlet, the diameter dh of an impeller hub, the maximum outer diameter D2max of the impeller, the inclined angle alpha2 of an outlet edge, the minimum outer diameter D2min of the impeller,the width b2 of the outlet edge and the axial length L of the impeller. By application of the impeller designed by the invention, not only is need for sewage treatment met, but also the flowing condition is improved simultaneously, and the flowing capability, no destruction and no winding of an axial flow pump are improved. Therefore, the single-screw axial-flow pump applying the impeller is especially suitable for the sewage treatment industry.

The invention discloses a full position pipe-pipe intersecting line automatic welding system and a welding method and belongs to the technical field of welding. The full position pipe-pipe intersecting line automatic welding system comprises a welding power source, a transmission component, a rotating component, a clamping component and a wire feeding component. The transmission component comprises a motor-speed reducer, a gear and a chassis, wherein the gear and the chassis are connected with the speed reducer, the gear is fixed to the chassis, and the motor-speed reducer is electrically connected with the welding power source. The rotating component comprises a rotating disk, transverse swing sliding frames, a welding torch and a tooth ring matched with the gear, the welding torch and the tooth ring are fixed to the rotating disk, the transverse swing sliding frames are transversely fixed to the rotating disk, the rotating disk is fixed to the chassis, and the motor-speed reducer drives the rotating disk to enable the welding torch to rotate. The clamping component comprises a base and two chucks. The two chucks are symmetrically arranged and rotationally connected with the base.The base is fixedly connected with the chassis. The wire feeding component comprises a welding wire connected with the welding torch. The full position pipe-pipe intersecting line automatic welding system is simple in structure and convenient to use, through control over the welding parameter and the welding position, correction of the circular degree error and groove preparation error of a welded piece is achieved, the depth consistency of a weld joint is guaranteed, the quality of the weld joint is high, and normal use of pipes is guaranteed.

The invention discloses a cultivation method of hyacinth beans and aims at providing a cultivation method of hyacinth beans for reducing the amount of labour and the production cost. The invention adopts the technical scheme as follows: Chinese toons are used as a climbing frame of hyacinth beans. The cultivation method of hyacinth beans comprises the following steps: (1) constructing Chinese toonfarmland and keeping the planting distance and the row distance between 50 cm and 100 cm; (2) planting hyacinth beans beside the Chinese toon farmland; (3) connecting the Chinese toons by ropes to construct the climbing frame and towing hyacinth bean vines to climb the climbing frame; and (4) topping and applying fertilizers during the defoliation of the Chinese toons. The technical scheme adopted by the invention is simply operated, reduces the amount of labour and the production cost and has high comprehensive benefits.

A Vinyon N cell fiber mixed with polythene dimethyl silicon, and its production and accumulator polar plate are disclosed. The process is carried out by stretching for fiber tow, applying oil, treating by polythene dimethyl silicon oil solvent, drying and cutting. Ultra-short fibers of Vinyon N cell fiber are added into accumulator polar plate. It has better strength and long usage life, and has excellent non-crease, anti-impact and ultra-short cutting performances, excellent dispersion and hardness. It can be used for various plumbous acid accumulators.

The invention discloses a pulsator washing machine and a water-holding barrel cover thereof. The water-holding barrel cover is arranged at the top of a water-holding barrel internally provided with an inner drum rotating relative to the water-holding barrel. The water-holding barrel cover comprises a cover body formed in an annular shape, first water-guide ribs and second water-guide ribs. The first water-guide ribs and the second water-guide ribs are arranged on the surface on one side of the cover body at intervals and deviate from the cover body in a radial direction from the inside to the outside. The extending direction from the outside to the inside of the first water-guide ribs is configured in that water flow is guided into the inner drum along the tangential direction of rotating direction of the inner drum. The inner ends of the second water-guide ribs extend toward the center of the cover body. The water-holding barrel cover provided by the embodiment has following beneficial effects: cleanliness of clothes is greatly improved; great waterflow mechanical force functions as a cleaning agent to the greatest extent such that more clothes can be washed with fewer cleaning agent; and clothes is not intertwined.

The invention discloses an OPLC (Optical Power Line Communication) terminal stripping and fixing seal device and a process thereof. The device comprises a base and an upper cover, wherein the upper cover and the base are detachably sealed and fixed; OPLC inlet semicircular grooves matched with one another are formed in one ends of the base and the upper cover; the OPLC inlet semicircular grooves of the base and the upper cover are vertically correspondingly combined to form OPLC inlet holes; a plurality of cable outlet semicircular grooves and a plurality of optical cable outlet semicircular grooves matched with one another are formed in the other ends of the base and the upper cover; the cable outlet semicircular grooves of the base and the upper cover are vertically correspondingly combined to form cable outlet holes; and the optical cable outlet semicircular grooves of the base and the upper cover are vertically correspondingly combined to form optical cable outlet holes. The device disclosed by the invention is convenient to operate and excellent in overall strength, and the OPLC terminal stripping part can be effectively protected.

The invention discloses a compact siro-spinning micro-gathering splitting device and a siro-spinning gathering mechanism. The compact siro-spinning micro-gathering splitting device comprises a splitting plate. At least two sunken via grooves are formed in the splitting plate, the via grooves are provided with arc-shaped inner walls, a separation portion which is protruded out of the splitting plate is arranged between ever two adjacent via grooves, the separation portions are provided with arc-shaped outer edges, and the outer edges of the separation portions are in smooth transition with theinner walls of the via grooves. The siro-spinning gathering mechanism comprises a framework, a first roller, a second roller, a third roller, first rubber rolls, second rubber rolls, third rubber rolls, a special-shaped tube, a first support pin, a second support pin, a first apron, second aprons and the compact siro-spinning micro-gathering splitting device. The compact siro-spinning micro-gathering splitting device and the siro-spinning gathering mechanism have the advantages that the compact siro-spinning micro-gathering splitting device can effectively prevent every two siro-spun fiber strands from being wound and combined with each other into a fiber strand in gathering regions, and good effects of gathering every two siro-spun fiber strands can be realized by the compact siro-spinning micro-gathering splitting device.

The invention provides layout equipment and a layout method for multiple integrated sensors in a deep part of a landslide, a penetration type monitoring body comprises a sleeve and a sensor penetration shear, the sensor penetration shear is arranged in a scissor shape, and a first blade and a second blade rotate oppositely or oppositely in the vertical direction, so that the sensor penetration shear has an initial position and a monitoring position; when the sensor penetration shear is located at the initial position, the ends of the pressed parts of the first blade and the second blade are arranged at intervals in the vertical direction, when the sensor penetration shear is located at the monitoring position, the pressed parts move oppositely, and the shearing part penetrates out of the mounting hole to shear the sliding body. And a monitoring body arrangement system drives the sensor penetration shears to move from the initial position to the monitoring position. The technical scheme provided by the invention has the beneficial effects that the scissor-shaped sensor penetration shear is mounted on the sleeve, and the shearing part is sheared into a soil body, so that the stress is balanced, and the requirement on the sleeve is low; and the arrangement device adopts a local static force application design, is balanced in static force, is not easy to turn over, has low requirements on a pull rope, and does not generate winding.

The invention discloses an antenna helicoid partition limiting and data transmission integrating device, comprising a mounting rack (1), a double-channel rotary transmitter (2), a coupling A (3), a transmission shaft (4), a seat frame (5), a sliding seat (6), a helical casing (8) and a coupling B (7), wherein the mounting rack (1) is provided with a mounting layer A (11) and a mounting layer B (12), the double-channel rotary transmitter (2) is mounted in the mounting layer A (11), the seat frame (5) is mounted on the upper surface of the mounting layer B (12), the transmission shaft (4) penetrates through the seat frame (5) and the mounting layer B (12), one end of the transmission shaft (4) is connected with the double-channel rotary transmitter (2) through the coupling A (3), the helical casing (8) is arranged above the seat frame (5), the other end of the transmission shaft (4) is mounted in the helical casing (8), and the sliding seat (6) is mounted on the seat frame (5). The device has the advantages of high partition limiting precision, small size and the like.

The invention discloses a ceramic grinding aid and belongs to the technical field of ceramic additives. Diisopropanol amine, diethanol amine and succinic anhydride serve as raw materials and are subjected to esterification to form a hyperbranched polymer; the terminals of the raw materials contain large quantity of polar groups, such as hydroxyl group, ester group and the like, so that the ceramicgrinding aid is easy to adsorb on surface of ceramic clinker to form hydrogen bond film that inhibits curing of micro-cracks and increases grinding efficiency; xylitol and acryloyl chloride are subjected to acylating chlorination to synthesize an intermediate, which can partly replace methylallylpolyoxyethylene ether for preparing a modified substance through free radical polymerization with hydroxyethyl methylacrylate and acrylic acid under effect of ammonium persulfate, thereby enhancing flowability of ceramic slurry, improving grinding assisting effect and meanwhile, effectively improvingmaterial flow speed and electrostatic adsorption in a grinding mill. The invention solves problems that a ceramic grinding aid in the prior art does not have excellent water reducing and dispersion effects and cannot improve the material flow speed and electrostatic adsorption in the grinding mill well.

The invention discloses a washing machine pulsator and a washing machine thereof. The washing machine pulsator comprises a pulsator body, wherein two protruding stirring blades extending from the center in the radial direction of the pulsator body are arranged on the pulsator body, and the two stirring blades radially extend on the same diameter. The washing machine pulsator is large in stirring blade area, movable spaces for clothes exist at a vertical part and a middle part, intertwining is avoided, washing and drying effects are better, and dried clothes are fluffy.

The invention discloses an automatic rebound rope saw for field survival. The automatic rebound rope saw comprises a first handle; the side face of the first handle is fixedly connected with a windingcylinder, the inner wall of the winding cylinder is movably connected with a rotating shaft through a bearing, and the surface of the rotating shaft is fixedly connected with a rolling wheel; the surface of the rolling wheel is fixedly connected with a saw rope, and one end of the saw rope penetrates through the side face of the winding cylinder and is fixedly connected with the side face of a second handle; and one end of the rotating shaft penetrates through the surface of the winding cylinder and is fixedly connected with a limiting rod. By arranging the winding cylinder, the rotating shaft, the rolling wheel, the saw rope and a power spring, when the rope saw is not used, the power spring tends to be recovered and thus drives the rotating shaft to rotate, when rotating, the rotating shaft drives the rolling wheel to wind the saw rope, thus the saw rope is neatly stored in the winding cylinder, thus the size of the rope saw is greatly decreased to enable the rope saw to be convenient to carry, and the rope saw is prevented from tangling and thus is convenient to use.