27results about How to "Consistent force" patented technology

The invention relates to a turnover hoisting mechanism and a turnover hoisting method, and relates to the field of building construction, the turnover hoisting mechanism comprises a hoisting frame, a hoisting assembly and a turnover assembly, the hoisting assembly is fixedly or detachably connected with the hoisting frame, and the turnover assembly is fixedly connected with the hoisting frame. The overturning and hoisting method adopts the overturning and hoisting mechanism to overturn and hoist the prefabricated part. The overturning and hoisting mechanism has the beneficial effects that when the overturning and hoisting mechanism is used for overturning or hoisting, only a hoisting belt or a rope connected with a hoisted object needs to be replaced, the working efficiency of hoisting transportation and overturning operation of the integrated module house and the large building component is improved, the investment of production equipment is saved, the equipment is light, convenient to move and low in cost, and the production cost is reduced. And a fixed field is not occupied.

The invention provides a capacitance film thickness measuring device, and relates to the technical field of thickness meters, the capacitance film thickness measuring device comprises a test bench, the top surface of the test bench is provided with a test groove, the side wall of the test groove is provided with a displacement roller, the displacement roller can roll on the side wall of the test groove along the length direction of the test groove, and the displacement roller and the bottom surface of the test groove are arranged in parallel. According to the capacitance film thickness measuring device provided by the invention, through the arrangement of the test bench, the displacement roller, the telescopic rod, the pressing block, the capacitance type displacement sensor, the displacement amplification mechanism and the constant force driving mechanism, when the thickness of a capacitance film is measured, it can be ensured that the acting force of the pressing block on the capacitance film is always kept consistent; according to the invention, measurement errors caused by different deformation amounts of the capacitance film due to different acting forces on the capacitance film are reduced, the consistency of measurement results is ensured, and in addition, measurement can be carried out after the displacement amount of the telescopic rod is amplified, so that the accuracy of detection results is improved, and the large measurement result error caused by too small displacement amount of the telescopic rod is reduced.

The utility model relates to the field of construction safety, concretely relates to a kind of for safety belt collocation multi-point adsorption type safety fixing device, including main frame, sucking disc, pressure outlet, pressure ware, power, connecting buckle, connecting rope, hook, alarm, the sucking disc evenly distributes in the bottom of the main frame, the pressure outlet is set in the side of one vertex of the main frame, the connecting buckle is set in the front of the main frame, the connecting rope connects the connecting buckle and hook, the pressure ware is set in the main frame and is connected with the sucking disc, the power is electrically connected with the alarm, pressure ware, after sucking disc and adsorption operating surface contact, the pressure ware empties the gas in the sucking disc by the pressure outlet. The adsorption, illuminating property, convenience, safety of the device provide better security guarantee for the safety of worker in construction site, more convenient in construction process, improve the safety index of construction site.

This invention discloses a PCB elasticity testing device, relating to the field of PCB testing technology. The device includes a worktable and a backplate. An X-axis module is fixed on the backplate, and a Z-axis module is mounted on the X-axis module. An elasticity testing component is mounted on the Z-axis module via a first slide rail. A Y-axis module is mounted on the worktable, and a testing platform is mounted on the Y-axis module. By incorporating the elasticity testing component, a constant pressure can be applied to the PCB buttons. The bottom of the elasticity testing piece for the press test is cylindrical, simulating the contact surface of a human finger. The device can repeatedly press to test the lifespan of the PCB buttons. This device eliminates the need for manual pressing, providing fully automated testing. A pressure sensor is mounted above the elasticity testing piece to ensure consistent force during each press.

The invention provides a bottom-entering type crusher which comprises a barrel, a crushing mechanism is fixedly connected to the middle of the barrel, a fixing sleeve is fixedly connected to the middle of the lower end of the barrel, the crushing mechanism comprises a driving motor, the driving motor is fixedly connected to a flange structure preset at the lower end of the fixing sleeve, and the output end of the driving motor is fixedly connected with a rotating shaft. The rotating shaft extends upwards into the fixed sleeve, the side wall of the upper portion of the rotating shaft is fixedly connected with a bearing, the upper portion of the rotating shaft is fixedly connected with a rotating hub, the rotating hub is located above the bearing, the outer side of the fixed sleeve is sleeved with a rotating sleeve, and a plurality of screws are arranged on the side wall of the rotating sleeve. The screw rod is sleeved with a plurality of lower cutters and distance rings which are arranged at intervals, so that the distance between the lower cutters is adjusted according to the replacement of the distance rings with different height specifications, and the height of materials in the barrel body is adapted. According to the invention, the height of the lower cutter is adjusted by replacing the distance ring, so that the operation stability of the crushing mechanism is improved.

The invention discloses an integrated device for the occurrence and determination of corn lodging, comprising a frame installed behind a traction device, a plurality of rows of stalk strength determination devices installed in the frame, each row of stalk strength determination devices corresponding to a crop of a ridge, a lateral arrangement of stalk lodging pushing rods installed on the pressure test head at the lower end of each stalk strength determination device; the height of each row of stalk strength determination devices decreases from front to back; the lower end of the stalk strength determination device tilts forward and is substantially perpendicular to the lodged crop stalks. The advantages of the invention are: through traction by the traction device, multiple stalk strength determination devices can be driven to move forward at the same speed, ensuring that the force on the same height of corn is consistent; while simulating lodging, the pressure is measured and recorded, realizing the integration of the occurrence and determination of lodging; the determination of large-scale experimental materials can be completed uniformly and consistently in a short time, greatly improving the experimental efficiency.

The invention relates to the technical field of intelligent molded case circuit breakers, in particular to a bidirectional automatic clutch mechanism which comprises a driving wheel, a driven wheel, a main shaft, a connecting sleeve, a plurality of locking sliding blocks and a return elastic piece. The driving wheel is fixedly connected with the connecting sleeve, the driven wheel is rotatably connected with the main shaft, the driven wheel partially extends into the connecting sleeve and is rotatably connected with the connecting sleeve, a cylindrical groove is formed in the end, extending into the connecting sleeve, of the driven wheel, and a plurality of protruding blocks and a plurality of clamping notches which are equally divided along the circumference of the cylindrical groove are evenly arranged on the inner wall of the cylindrical groove. A plurality of locking sliding block grooves equally divided along the circumference of the connecting sleeve are evenly formed in the end, overlapped with the driven wheel, in the connecting sleeve, a plurality of sliding block groove center through holes corresponding to the locking sliding block grooves in a one-to-one mode are formed in the end, away from the driven wheel, in the connecting sleeve, and the locking sliding block grooves communicate with the sliding block groove center through holes. A locking sliding block is arranged in each locking sliding block groove, and the other end of each elastic piece penetrates through the corresponding sliding block groove center through hole and the corresponding locking sliding block groove to be connected with the corresponding locking sliding block in a clamped mode in a one-to-one correspondence mode. The mechanism can realize automatic bidirectional clutch, and is compact in structure and small in occupied space.

The application discloses a high-temperature co-electrolysis cell stack module structure and relates to the technical field of fuel cells, which comprises an electric pile group and a pipeline assembly; the electric pile group comprises six electric piles which are arranged in a regular hexagon around a central position and are left empty in the central position; the electric pile comprises a top plate and a bottom plate, and the top plate and the bottom plate are in a regular hexagon structure; the electric pile further comprises four groups of stretching assemblies, the stretching assembly comprises a pull rod and a spring, and the spring is in a stretching state; the pipeline assembly comprises an air inlet pipeline and an air outlet pipeline; the gas entering a total gas inlet is shunted to the first gas inlets of the six electric piles, and the gas entering a total air inlet is shunted to the first air inlets of the six electric piles; the air outlet pipeline comprises a total gas outlet and a total air outlet, and the gas flowing out of the first gas outlets and the first air outlets of the six electric piles is respectively converged to the total gas outlet and the total air outlet. The application adopts a honeycomb six-pile ring arrangement structure, and the compactness and the modularization level of the system are significantly improved.

The utility model provides a leadless coating structure for resistor production, which comprises a transmission wheel, a base arranged above the transmission wheel, a sealing cover fixedly mounted at the upper end of the base, and a connecting strip movably mounted between the base and the sealing cover. According to the leadless coating structure for resistor production, through the arrangement of the structures such as the protrusions, the limiting holes, the base and the limiting springs, the protrusions are ingeniously matched with the limiting holes, and it is ensured that the transmission wheels can accurately transmit power to the connecting strips. In the transmission process, the protrusions are clamped into the limiting holes all the time, so that the connecting strips stably move in the preset direction and do not deviate or shake, and the stability of the structure is further enhanced through the arrangement of the limiting springs. Under the condition of thermal expansion and cold contraction, the limiting spring can pull the base to prevent the base from deviating outwards due to thermal expansion, the limiting spring can be matched with the base to recover to the initial state during contraction, and the stability of the base under different temperature conditions is guaranteed.

A super-large screen changing device for filtering and mixing, characterized in that it comprises an outer shell composed of an inlet plate, an outlet plate and pads clamped between the upper and lower ends of the inlet plate and the outlet plate, a slide plate type filter unit installed in a slideway composed of the outlet plate, the inlet plate and the upper and lower pads, a power mechanism for driving the slide plate type filter unit to reciprocate along the slideway is connected to one side of the slide plate type filter unit through a connecting block; the slide plate type filter unit is provided with a material channel and an integrated porous plate, and a filter screen is provided on the feed side of the integrated porous plate; a petal-type dynamic sealing disk with a hollow structure in the middle part and a sealing auxiliary spring are provided between the mating surfaces of the inlet plate and the slide plate type filter unit, and the feed port and the mixing channel of the inlet plate are of a honeycomb structure; a petal-type static sealing disk with a hollow structure in the middle part is provided between the mating surfaces of the outlet plate and the slide plate type filter unit, and the discharge port and the mixing channel of the inlet plate are of a honeycomb structure.

This utility model belongs to the technical field of carbon fiber cable processing equipment, specifically a precision stranding control device for carbon fiber cable processing. It includes a base plate, with two support plates fixedly connected to its upper surface. A turntable is rotatably mounted on the inner surface of each support plate. A fixing ring is fixedly connected to the side wall of the right turntable, and a worm gear ring is rotatably mounted on the side wall of the fixing ring. Multiple sliding grooves are formed on the inner surface of the fixing ring. A tensioning mechanism is installed inside the base plate, including a tensioning plate slidably mounted inside the sliding grooves. A sliding column is fixedly connected to the side wall of the tensioning plate. This utility model has a reasonable structure, and through the linkage and synchronous drive of the worm gear and worm wheel, all tensioning mechanisms are activated, ensuring consistent force on multiple strands of wire and avoiding stranding defects caused by uneven tension. It is particularly suitable for brittle carbon fiber materials.

The present invention relates to a die-casting mold using a composite core-pulling structure, including an upper mold frame and a lower mold frame, an upper mold core and a lower mold core stacked up and down are installed between the upper mold frame and the lower mold frame, a mold cavity is provided between the upper mold core and the lower mold core, a front core-pulling block, a rear core-pulling block and a right core-pulling hole column are respectively provided at the front, rear and right sides of the upper end of the lower mold core, each core-pulling block and the right core-pulling hole column are equipped with a driving device, and a composite core-pulling structure is provided on the right side of the upper mold frame. The present invention designs a new composite core-pulling structure, which effectively reduces the mold height, makes the layout of the movable and fixed molds more reasonable, and reduces the shaking and deformation of the product caused by the pulling of the slider, and the mold pressing plate can be used normally without the need for a special installation method.

The application discloses a stress-free assembly method for an adjustable focus off-axis beam expanding system, which comprises the following steps: aging treatment during structure processing, glue injection and solidification of the structure and optical components, stress release, structure mounting surface covering and constant force fastening, etc. The application realizes stress-free assembly of the adjustable focus off-axis beam expanding system which comprises two plane mirrors, one secondary mirror, one primary mirror and a mirror frame, and a truss structure, wherein the system wavefront RMS change is less than 10% after environmental test, meanwhile, the assembly process is controllable, and the efficiency of optical mechanical system assembly is improved.

This invention proposes a method for lifting and raising a single-column cantilever cap beam, belonging to the field of building construction technology, including the following steps: S1: Clear the soil covering the pier cap location to expose the side of the pier cap; S2: Install reinforcing bars on the side of the pier cap to expand the pier cap; S3: Install the beam bottom support and clamp beam formwork under the cap beam, and construct the clamp beam around the pier column; S4: After the clamp beam construction is completed, remove the clamp beam formwork and beam bottom support; S5: Install steel pipe columns and lifting equipment on the pier cap; S6: Cut the pier column to form an upper pier column and a lower pier column; S7: Operate the lifting equipment to lift the clamp beam, and cyclically lift the upper pier column and the cap beam; S8: Extend the pier column height; S9: Remove the clamp beam; S10: Remove the lifting equipment and steel pipe columns. A clamp beam is constructed at the bottom of the cap beam to support the bottom of the cap beam. Steel pipe columns and jacking equipment are arranged around the outer side of the pier column below the clamp beam. During jacking, the stress on the cap beam is basically the same as the normal stress, and cracking will not occur, thus ensuring the quality of the project.

This invention relates to the field of vacuum glass production and discloses a vacuum glass sealing device, including a worktable with multiple rows of synchronously rotating rollers, a positioning groove and a limiting groove located between the rollers, a positioning component for longitudinally positioning the glass in the positioning groove, and a limiting component for laterally limiting the glass in the limiting groove, as well as two liftable conductive probe assemblies and a pressure application component. This invention not only simplifies and reduces the cost of metal edge sealing of vacuum glass but also facilitates large-scale production. Therefore, this invention is of great significance for reducing vacuum glass production costs, minimizing environmental pollution, and expanding the application range of vacuum glass. This invention overcomes the shortcomings of traditional sealing methods, such as high sealing temperatures, complex processes, and stringent sealing conditions, improving the sealing quality and production efficiency of vacuum glass, and is suitable for widespread application.

The utility model discloses a flexible combination cable for a mobile system, which comprises two signal core wires and two control core wires, the signal core wires and the control core wires are twisted into a cable, the center and the outer side of the cable are filled with filling ropes, the signal core wires and the control core wires of the cable are wrapped by a wrapping tape, and a sheath is extruded on the wrapping tape; each signal core wire comprises a signal conductor, the signal conductor is formed by twisting a plurality of Category 6 + copper wires of phi 0.05 mm, a signal insulating layer is extruded on the signal conductor, a winding shielding layer is wound on the signal insulating layer, and the winding directions of the winding shielding layers in the two signal units are opposite; the control core wire comprises a control conductor, the control conductor is formed by twisting a plurality of Category 6 + copper wires of phi 0.05 mm, and a control insulating layer is extruded on the control conductor; the twisting direction of the signal conductors, the twisting direction of the control conductors and the twisting direction during cabling are consistent. The flexible cable is not only good in flexibility, but also excellent in electrical performance.

The invention relates to the technical field of ultrasonic water meters, particularly provides a measuring tube of an ultrasonic water meter and the ultrasonic water meter, and aims to solve the problem of how to meet the dual requirements of high-precision metering and energy conservation in the practical application of the ultrasonic water meter. In order to achieve the purpose, the measuring pipe of the ultrasonic water meter comprises a middle pipe section, the rectifier is arranged on at least one side of the middle pipe section in the axial direction, and the rectifier comprises a spoke wheel and a plurality of spoke pieces arranged in the circumferential direction of the inner wall of the spoke wheel; the reflector plate support is provided with a first end and a second end which are opposite, the first end is located between the middle pipe section and the rectifier and used for installing the reflector plate, the second end extends towards the rectifier and is connected with the radial plates, and the sectional area of the reflector plate support is gradually reduced in the direction from the first end to the second end. The measuring precision of the measuring tube can be improved, and the pressure loss can be reduced, so that the dual requirements of high-precision measurement and energy conservation are met.

The present application relates to the field of vacuum glass production, and discloses a vacuum glass sealing process, which utilizes a conductive probe to contact a solder strip from an edge apex, uses the solder strip as a conductor to form a closed circuit, and generates heat in the solder strip itself during electrification to melt the solder strip, and a pressing assembly is used to press the solder strip to tightly combine with a glass silver paste layer. The present application can not only realize the convenience and low cost of vacuum glass metal sealing edges, but also easily realize large-scale production. Therefore, the present application has important significance for reducing the production cost of vacuum glass, reducing environmental pollution, and widening the application range of vacuum glass. The present application overcomes the defects of high sealing temperature, complex process, harsh sealing conditions and the like in the traditional sealing method, improves the sealing quality and production efficiency of vacuum glass, and is suitable for popularization and application.

A kind of coating base, comprising: base body, coating platform is equipped on base body, and coating platform is used to place coating base material;Base body and coating platform are equipped with multiple through holes, and the through hole on base body is matched with the through hole on coating platform;Top rod fixed plate, top rod fixed plate is arranged below base body;Top rod fixed plate is equipped with multiple top rods, and top rod is sequentially penetrated through the through hole on base body and the through hole on coating platform;Lifting unit, lifting unit is connected with top rod fixed plate, and lifting unit is used to control the convex size of top rod on the surface of coating platform.The coating base of the present application is convenient to take after coating base material completes coating operation.

The utility model discloses a mold assembly and an injection mold with the mold assembly, the mold assembly comprises a first mold core, a second mold core bearing a semi-finished product, a cooling assembly and an elastic assembly, and the second mold core is arranged opposite to the first mold core in the first direction. A part of the cooling assembly is arranged in the first mold core in a penetrating mode in the first direction. The elastic assembly is arranged between the cooling assembly and the first mold core. The first mold core drives the cooling assembly and the elastic assembly to move close to the second mold core in the first direction. According to the mold assembly, the first mold core drives the cooling assembly to move and approach the second mold core, and when the first mold core makes contact with the second mold core, the semi-finished product on the second mold core supports the cooling assembly, so that the cooling assembly compresses the elastic assembly; therefore, the cooling assembly is attached to the inner side of the semi-finished product under the action of the elastic assembly and cools the inner side of the semi-finished product, so that the temperature difference between metal on the inner side and metal on the outer side of the semi-finished product is adjusted, and the effect of improving the product quality is achieved.

The present application discloses a kind of railway prefabricated box girder prestressed steel strand whole hole threading process, belong to steel strand threading field.The process includes the following steps: step one, threading preparation: the pay-off reel and threading machine are moved to the end of beam body predetermined position, clean the reserved hole of beam body, finished product bundle is hoisted into pay-off reel and end bundling is removed;Step two, finished product bundle traction: the front end of finished product bundle is pulled into the clamping pushing mechanism of threading machine, and the clamping pushing mechanism is started to pull finished product bundle close to the reserved hole;Step three, install guide wheel: install guide wheel at the front end of finished product bundle, and the end of finished product bundle is fixed by detachable connecting structure between guide wheel and finished product bundle.The present application is precast by finished product bundle factory fixed size, whole bundle mechanical pushing and two end mark plate corresponding check, so that each steel strand is parallel straight and not winding, the stress is consistent when tensioning, while reducing manual operation, improve construction efficiency and quality.

According to the lens high-speed mounting equipment, conveying tables are arranged on horizontal positioning moving mechanisms of three different working sections of a first horizontal moving mechanism, a second horizontal moving mechanism and a third horizontal moving mechanism, a Cover jig disc conveying line is formed by the multiple sets of conveying tables, corresponding machining operation can be carried out only by positioning Cover jig discs through a jacking mechanism, and the machining and transferring stroke is reduced; the Cover jig discs on different conveying tables are mutually independent and do not interfere with each other during operation; the negative pressure suction hole is formed in the position of the Cover jig disc to carry out negative pressure adsorption positioning on the Cover material, the Cover material can be prevented from being taken up when the dispensing and mounting speed is increased, and only the air extractor needs to be closed when the Cover material is taken and placed; a console with an analogue simulation function is adopted, and an optimal dispensing and mounting route is formulated according to data feedback of the recognition mechanism; a plurality of Lens negative pressure suction nozzles are arranged to carry out mounting at the same time; and the rear ends of the servo rotating mechanisms are provided with oil ducts which are communicated with one another, so that the stress of the Lens negative pressure suction nozzles is kept consistent, the height difference of the Cover material mounting position is made up, and the working efficiency is improved.

A zero-plugging-force socket connector comprises a signal pin module, a socket shell and an insulator shield, the signal pin module is installed in the socket shell, the signal pin module is provided with two pin rows which are oppositely arranged, and the same pin row is provided with a plurality of signal pins which are arranged at intervals; the insulator shield is arranged at the plug-in end of the socket shell; a cam shaft located between the two needle rows is arranged in the socket shell. In the signal pin module, the same pin row is provided with an insulating connecting rib capable of connecting all signal pins; the insulator shield is provided with a shield unit corresponding to the signal pin module, and the side surface of the shield unit is provided with an open shield side opening for the popping of the contacts of all signal pins in the same pin row. According to the utility model, the contact effect and the signal transmission quality after the connector is connected can be ensured.

The invention discloses a missile wing unfolding mechanism with variable sweepback angles. The missile wing unfolding mechanism comprises a cam sliding block, a gas actuator cylinder mounting seat, a linear motor, an actuator cylinder sliding rail, a cam sliding rail, a rack, a gear right missile wing, a gear left missile wing and a roller. Missile wings are unfolded through the actuator cylinder-rack-gear, the unfolding angle of the missile wings is adjustable through the motor-cam mechanism, and the functions of synchronous unfolding of the missile wings, storage and transportation of hair in a small space and adjustment of the sweepback angle according to requirements can be met at the same time. The device is simple and reliable in structure and convenient to maintain.

This utility model relates to the field of plastic processing technology and discloses a production and processing equipment for plastic lunch boxes, including a support plate, a first support rod, a first fixed plate, a second support rod, and a second fixed plate. A separation component is fixedly installed on the top of the second fixed plate, and the separation component includes a cylinder cover fixedly installed on the top of the second fixed plate. After molding, the push rod passes through the opening to push the chassis, which drives the annular block and the separation rod component to accurately separate the molded lunch box from the inner wall of the lower mold, avoiding the adhesion problem common in traditional processes. This ensures product integrity, reduces subsequent manual cleaning processes, and improves production continuity. The sliding rod design effectively maintains the stability of the chassis during movement, avoiding movement jamming or positional displacement caused by component shaking, ensuring the reliability of the entire equipment during high-frequency operation, reducing the risk of failure, and extending the service life of the equipment.