15results about How to "Prevent springback" patented technology

This utility model discloses a bag-folding mechanism for a bag-opening machine, including a worktable with a positioning window. An upper folding knife assembly and a lower folding knife assembly are correspondingly arranged above and below the positioning window. The upper folding knife assembly includes a lifting and lowering fixed plate, upper left and upper right folding knives mounted on the fixed plate, and front and rear folding knives arranged horizontally. The lower folding knife assembly includes a lifting and lowering mounting plate and lower left and lower right folding knives arranged horizontally on the mounting plate. The upper folding knife assembly descends into the cut bag opening. The front and rear folding knives move back and forth to fold the front and rear edges of the bag opening. The upper left and upper right folding knives descend synchronously with the fixed plate to fold the left and right edges of the bag opening downwards. Then, the lower left and lower right folding knives of the lower folding knife assembly move horizontally left and right to further fold the downward-folded left and right edges and press and shape the folded edges, ensuring the quality of subsequent bag opening sewing.

The utility model relates to cable production technical field especially is a kind of cable straightening equipment, including mounting plate, mounting plate is provided with two and is symmetrically distributed before and after, the four corners of two mounting plates are all provided with mounting hole, the opposite end of two mounting plates is all fixedly connected with slide rail, straightening mechanism is slidably connected between two mounting plates, two stands are symmetrically fixedly installed in the upper end of the mounting plate located rear part, one end of a stand is fixedly installed with one positive and negative motor, the output of one positive and negative motor is fixedly connected with ball screw, ball screw is screw-connected with the rear part of straightening mechanism. The utility model discloses a kind of cable straightening equipment, reciprocating motion is driven by ball screw straightening mechanism, realize the stable feeding of cable and continuous straightening;While using the multiple straightening wheels of annular distribution, realize automatic adaptation different diameter cable with adjusting disc cooperation, improve straightening efficiency and versatility, applicable to the efficient processing and automatic production of multiple specifications cable.

This invention relates to the field of adhesive coating technology and discloses an adhesive coating device for an induction cooker panel, including a base, a linear guide rail on the base, a spray gun fixedly mounted on the linear guide rail, the spray gun including an adhesive supply pipe and a movable nozzle, a back suction valve on the adhesive supply pipe, a fixed pipe connecting the adhesive supply pipe and the movable nozzle, the fixed pipe being fixedly connected to the linear guide rail, a limit cylinder coaxially fixedly mounted on the fixed pipe, the movable nozzle coaxially mounted inside the limit cylinder and connected to the fixed pipe through a cylindrical elastic membrane, a magnet fixedly mounted on the movable nozzle, and a winding coaxially mounted on the limit cylinder; this application achieves rapid stretching and breaking of the adhesive by driving the movable nozzle to rotate circumferentially and causing the elastic membrane to undergo helical torsional deformation, forming an axial tensile force that drives the movable nozzle to move axially, thereby achieving rapid stretching of the adhesive and breaking it. At the same time, combined with the back suction effect of the back suction valve and the pressure-holding design of the elastic membrane, it effectively solves the problem of easy stringing of the adhesive at the end of the coating process.

The utility model relates to the technical field of safety air bag, concretely relates to a far end air bag air bag pull belt of composite structure, including air bag, the air bag is composed of two air bag main pieces, is provided with the composite pull belt mechanism between two air bag main pieces, the composite pull belt mechanism includes horizontal limiting pull belt mechanism and longitudinal limiting pull belt mechanism, horizontal limiting pull belt mechanism is used for limiting air bag horizontal expansion, longitudinal limiting pull belt mechanism is used for limiting air bag longitudinal expansion, and the composite pull belt mechanism is formed through C type pull belt and X type pull belt, and C type pull belt limits air bag longitudinal excessive expansion, and X type pull belt controls horizontal volume, makes air bag realize optimal protection coverage in limited space, improves air bag use effect.

This invention belongs to the field of aircraft separation structure design technology, specifically relating to an explosive bolt collection device and its design method suitable for compact axial space. The method includes: Step 1, determining the initial velocity and initial kinetic energy of the explosive bolt remnant; Step 2, selecting buffer structure connecting fasteners based on the initial kinetic energy of the explosive bolt remnant calculated in Step 1; Step 3, designing the collection structure based on the initial kinetic energy of the explosive bolt remnant calculated in Step 1 and the buffer structure connecting fasteners selected in Step 2; Step 4, conducting numerical simulation analysis and ground tests on the bolt collection device designed in Steps 2 and 3 to verify the feasibility of the design method for an explosive bolt collection device suitable for compact axial space. This invention can solve the problems of complex structure, high axial space requirements, and the risk of rebound in explosive bolt collection devices.

The invention relates to the technical field of photovoltaic supports, and particularly discloses an anti-seismic and anti-displacement photovoltaic support which comprises a base frame, a first anti-seismic rod is arranged at the upper end of the base frame, a second anti-seismic rod is arranged at the upper end of the base frame, an anti-seismic force unloading assembly is arranged at the upper end of the second anti-seismic rod, and connecting assemblies are arranged at the upper ends of the anti-seismic force unloading assembly and the first anti-seismic rod correspondingly. A third anti-seismic rod is arranged between the base frame and the second anti-seismic rod, and the base frame, the second anti-seismic rod and the third anti-seismic rod form a triangular structure; force is effectively unloaded, springback is prevented, the hidden crack risk of the photovoltaic equipment is reduced, the secondary damage risk of springback is reduced, cooperative shock resistance is achieved, the overall stability of the photovoltaic equipment is improved, one-way dissipation and controlled reset of vibration energy are achieved, and secondary impact damage caused by instantaneous springback of a traditional spring is reduced.

This utility model discloses an anti-springback bending forming mold, belonging to the technical field of bending forming molds. It includes a mold base, a movable box fixedly connected to the top of the mold base, a beam through-hole provided on the top of the movable box, a lead screw rotatably connected to the inner cavity of the movable box, a movable seat threaded onto the outer side of the lead screw, and a laser mounted on the top of the movable seat. In this utility model, through the coordinated use of the movable box, lead screw, servo motor, movable seat, and laser, after the sheet metal is bent on two bending modules, a high-energy laser beam is emitted from the laser towards the bending point, thereby hardening the bent area of ​​the sheet metal. Simultaneously, the threaded engagement between the lead screw and the movable seat drives the laser to move, thus hardening all bending points of the sheet metal and effectively preventing springback after bending.

This invention relates to the field of power distribution cabinet technology and discloses a multi-channel heat dissipation power distribution cabinet for smart grids. It includes a cabinet body with supporting legs at the bottom, a perforated grille top cover at the top of the cabinet body, symmetrically mounted frames on the inner walls of the cabinet, and several copper busbar partitions arranged sequentially from top to bottom on the rear inner walls of the two frames. Layered panels are also symmetrically mounted vertically on the inner walls of the two frames, and a base plate is also mounted on the inner walls of the two frames. This multi-channel heat dissipation power distribution cabinet for smart grids effectively solves the problems in existing technologies where the heat dissipation channels of power distribution cabinets are mostly fixed and normally open, unable to flexibly switch between open and closed states according to environmental conditions. In low-temperature and high-humidity environments, cold and humid air from the outside easily enters the power distribution cabinet, causing condensation, leading to corrosion and short circuits of electrical components, and the inability to effectively balance the contradiction between dust prevention, waterproofing, and heat dissipation.

This utility model provides a device for preventing rebound of shotcrete in tunnels, including a main frame, a strong magnetic base, a barrier net, a jacking mechanism, a scraper plate, and hydraulic struts. After the steel arch frame is erected in the tunnel and before concrete spraying, the main frame is attached to the steel arch frame, and the anti-rebound device is attached to the surface of the steel arch frame using the strong magnetic base. Concrete is sprayed by placing the nozzle inside the barrier net, which effectively intercepts rebound particles and prevents the fresh layer from falling off. After spraying, the jacking mechanism pushes the scraper plate to move repeatedly, smoothing the sprayed concrete. This greatly reduces the amount of rebound of the shotcrete, saves concrete usage, reduces construction costs, and improves the construction quality of shotcrete.

The utility model discloses a kind of pressing type fast hemostasis device, it is related to medical instrument technical field, including fixed plate and liquid accumulator, the fixed plate center position is provided with adjusting pressing plate, and the bottom left side of adjusting pressing plate is provided with liquid accumulator, the left side of adjusting pressing plate close to liquid accumulator is connected with multistage hook lock tooth.This pressing type fast hemostasis device, the both sides of the device are equipped with medical grade pressure-sensitive adhesive for fixing, wherein fixed hook is used in cooperation with adjusting pressing plate;So that multistage hook lock pressure regulating mechanism adjusting pressing plate has multistage hook lock tooth, and cooperation fixed hook can realize pressure gradient locking;The reserved needle hole below compression structure is convenient for puncture needle to exit directly hemostasis operation;Arterial hemostasis device fixed plate bottom is configured with flexible buffer layer to improve user comfort, and the design of liquid accumulator structure and position can make opening end pressure opening, and disinfecting treatment is carried out to puncture point.

The present application relates to the technical field of wire processing, and provides a wire processing and stranding forming device, which comprises a stranding mechanism, a tension adjusting mechanism, a supporting mechanism, a guiding mechanism, a cooling and shaping mechanism and a controller, the tension adjusting mechanism is assembled at the right end of the stranding mechanism, the supporting mechanism is assembled at the inner wall of the right end of the stranding mechanism, the left end of the supporting mechanism is provided with the guiding mechanism, the guiding mechanism is connected with the stranding mechanism, the cooling and shaping mechanism is arranged at the left side of the guiding mechanism, the cooling and shaping mechanism is connected with the stranding mechanism, and the controller is arranged at the back side of the stranding mechanism. The present application solves the problems of unstable wire laying tension, unadjustable stranding pitch, large guiding deviation, poor forming quality caused by the absence of cooling and shaping and the like of the traditional device, has the advantages of accurate and adjustable tension, stable stranding, reliable guiding, efficient cooling, strong versatility and the like, and can meet the needs of automatic stranding and forming processing of metal wires of various specifications.

This invention relates to the field of subway air conditioning testing technology, specifically disclosing an air conditioning pipeline sealing test device, comprising: a sealing cover, an inflation port, a vent, an electronic pressure gauge, and a connecting pipe. Two sealing covers are provided; one sealing cover has an inflation port communicating with its inner cavity at its front bottom, and the other sealing cover has a vent port communicating with its inner cavity at its front bottom. The electronic pressure gauge is positioned at the front top of one of the sealing covers, and its inner cavity is connected to the inner cavity of the sealing cover. The connecting pipe is located at the front middle of the sealing cover, and its inner cavity is connected to the inner cavity of the connecting pipe. This device can quickly and accurately detect the sealing performance of subway air conditioning pipelines and rapidly locate the leak point when a leak is detected, improving testing efficiency and accuracy while reducing maintenance costs and time.

The anti-rebound operating mechanism comprises a main shaft rotatably arranged on a side plate, the main shaft is used for being connected with a movable contact and being rotatable between a closed position and an open position, and the anti-rebound operating mechanism further comprises a rotatably arranged blocking piece, the main shaft is provided with a stop piece rotating with the main shaft, the blocking piece is provided with at least one blocking part and at least one avoiding part, the stop piece is provided with a striking structure and a pushing structure, when the main shaft rotates from the closed position to the open position, the pushing structure of the stop piece pushes the blocking piece to rotate so that the blocking part rotates to an anti-rebound position, when the blocking part is in the anti-rebound position, the blocking part is located on a rotating path of the striking structure when the main shaft rotates from the open position to the closed position, and the blocking part is located between the rotating center of the blocking piece and the striking structure, when the main shaft rebounds in the open position, the striking structure abuts against the blocking part to form a dead point to prevent the main shaft from rebounding, and the inertia is not needed to prevent the main shaft from rebounding.

The utility model discloses a kind of cable limiting devices, including guide cylinder, the inner hole of guide cylinder is tapered hole, guide cylinder is axially and uniformly distributed with at least two sliding grooves along the inner wall of tapered hole, each sliding groove is slidably mounted with limiting block, guide cylinder is installed with baffle ring at the big end side of tapered hole, limiting block is connected with pull rod at the big end side of tapered hole, and pull rod passes through baffle ring movably, spring is sleeved on pull rod, one end of spring abuts against limiting block, the other end abuts against baffle ring;The passage for passing through cable is between the limiting block, when limiting block moves to the little end side of tapered hole, limiting block can clamp cable.The utility model can clamp cable by limiting block sliding, to prevent cable rebound after breakage, reduce safety risk.

This invention relates to the field of land surveying technology, specifically to a pile driving and excavation device for land surveying and positioning. The device includes a mobile unit with a vertically arranged guide frame fixedly mounted on its front side. A hammering mechanism is slidably mounted inside the guide frame along the vertical direction. Vertically extending slide rods are fixedly mounted on both sides of the guide frame, and each slide rod is slidably fitted with an anti-deviation mechanism. The two anti-deviation mechanisms are configured to move towards each other to clamp the pile rod and limit its lateral deviation. Anti-rebound mechanisms are respectively provided on both sides of the bottom of the guide frame. The hammering mechanism and the two anti-deviation mechanisms are connected by a common drive unit. When the drive unit drives the hammering mechanism downward to hammer the pile rod, the invention uses a rack and pinion meshing with a side gear to drive the arc-shaped pressure rod to flip and engage with the slot in the mounting base. Under the pre-tension of the elastic element, a mechanical self-locking mechanism is formed, effectively preventing the pile rod from rebounding and ensuring accurate and reliable pile driving depth.