14results about How to "Stable length" patented technology

The application discloses a roadway guide rail installation lifting appliance, which comprises a lifting seat and symmetrically arranged lifting assemblies, the lifting seat is fixed with a horseshoe ring through bolts; the lifting assembly comprises an anchoring plate, an anchoring rod and an adjusting pipe, a fixing ring is arranged at the end of the anchoring rod away from the anchoring plate, coaxial adjusting rods are symmetrically connected to the adjusting pipe in a threaded mode, a first screw rod is threadedly connected to the end of the top adjusting rod away from the adjusting pipe and arranged to pass through the fixing ring, a second screw rod is threadedly connected to the end of the bottom adjusting rod away from the adjusting pipe and arranged to pass through the horseshoe ring, and the lifting seat is fixedly connected with the guide rail. The lifting appliance can be flexibly adapted to different roadway working conditions through the threaded cooperation between the adjusting pipe and the adjusting rods, and the equipment procurement and storage costs are greatly reduced.

The utility model discloses a total station with a stable support device, which comprises support legs and telescopic legs, a base is arranged above the support legs, the base is rotatably connected with the support legs, the periphery of the telescopic legs is provided with the support legs, the inner sides of the support legs are rotatably connected with sleeves, the inner parts of the sleeves are slidably connected with inner rods, and the inner rods are connected with the telescopic legs. And one end of the inner rod is rotationally connected with a lifting block. Compared with an existing total station, the total station with the stable supporting device has the advantages that the rotating lead screw drives the lifting block to ascend and descend, the lifting block pushes the inner rod and the sleeve when ascending and descending, and the inner rod and the sleeve push the supporting leg to rotate around the base, so that the supporting leg is synchronously rotated, and the length of the telescopic leg in the supporting leg is conveniently and quickly leveled and adjusted; when the telescopic legs abut against the ground and are on the solid ground, the supporting feet automatically adapt to the ground through rotation of the spherical joints, the contact area between the supporting feet and the ground is increased, and when the ground is wet, smooth and soft, the connecting blocks are taken down, the baffles are rotationally opened, and the pointed cones are inserted into the ground.

The application discloses a method, device, equipment and medium for determining an anode sheath length of an arc model. The method comprises the following steps: in the first step, a first arc root radius is determined according to a current density output by a first arc generation model; in the second step, a second arc root radius is determined according to the first arc root radius and a second arc generation model, wherein an input parameter of the second arc generation model comprises a first anode sheath length; and in the third step, the anode sheath length is determined according to the first arc root radius and the second arc root radius. By determining the anode sheath length, the application is beneficial to solving the problem of slow solving speed and non-convergence of arc model simulation calculation, thereby being beneficial to establishing a more accurate arc simulation model.

This utility model discloses an independently adjustable length and width roller skate shell, relating to the field of roller skate accessories, aiming to solve the problems of unreliable coupling and locking in traditional shell length and width adjustment. It includes a sole shell and a sliding toe cap, the sliding toe cap being slidably mounted on the sole shell. Independent length and width adjustment mechanisms are provided between the two. The length adjustment mechanism achieves stable locking and convenient operation through a meshing structure of positioning grooves and a pressing locking component, combined with a return spring. The width adjustment mechanism divides the forefoot into a main body and a contraction body, utilizing a cross-shaped sliding groove and contraction groove in conjunction with a width adjustment unit to drive width changes, and includes a crumple groove to provide deformation cushioning. This utility model, through its separate adjustment mechanism, achieves independent, precise, and stable adjustment of the length and width of the roller skate shell, significantly improving the adaptability, safety, and user experience of roller skates.

The utility model relates to the field of auxiliary frock provides a kind of anti-roll bar link assembly device. Anti-roll bar link assembly device includes base;First clamping component, setting in base, first clamping component includes the clamping groove of being set in pair, clamping groove is used to place the node mandrel of anti-roll bar link, first clamping piece is arranged in clamping groove for the node mandrel clamped in clamping groove;Second clamping component, setting in base, second clamping component includes clamping rod, clamping rod is used to the bearing of the rod end of anti-roll bar link clamped between clamping rod and base. The anti-roll bar link assembly device can firmly fix node mandrel, avoid the positioning deviation caused by the thickness change of mandrel;Can eliminate the wobble clearance of rod end bearing;Reduce the data deviation after assembly;Adjustable first clamping piece can be adapted to node mandrel of different thickness without replacing parts, save the changeover adjustment time of traditional frock.

This utility model belongs to the field of display screen technology and discloses a computer display screen with an anti-shake structure. The display screen includes a support component on its back. Each end of the support component is movably connected to a connecting component. The bottom of the display screen is placed on a table via a dedicated bracket. The lower end of the support component is firmly attached to the table via the connecting components, and the upper end of the support component is firmly attached to the upper end of the back of the display screen via another connecting component. Due to the support component, with the cooperation of the connecting components, it can be connected between the display screen and the table. Furthermore, with the cooperation of the adjusting plug and the connecting cavity, the length of the support component remains stable under the connection of the display screen. This ensures that when the display screen is impacted, it receives cushioning without continuous high-frequency vibration, effectively reducing the shaking intensity of the display screen.

The utility model discloses a kind of clamping tooling components for high-precision three-coordinate measuring machine, including workbench, the upper surface of the workbench is provided with the backing plate for bearing the measured piece, the both sides of workbench are provided with clamping assembly, the below of workbench is provided with the drive mechanism for driving two clamping assemblies to be close to each other, drive mechanism is installed in the inside of movable seat, the below of workbench is provided with the slide rail for limiting the moving direction of movable seat, and the guide pillar for lifting workbench, the utility model is adjusted by first adjusting backing plate to be horizontal state, then measured piece is placed on backing plate, and according to the structure of measured piece, adjust movable seat to suitable position, finally control two clamping assemblies to be close to each other to two top blocks respectively with the both sides of measured piece contact, to stabilize the position of measured piece, avoid the measured piece position deviation when subsequent measurement, lead to the case of measurement result error.

The utility model discloses an aluminum alloy plate conveying device, and relates to the technical field of conveying devices. The device comprises a plurality of conveying units which are arranged in parallel and a power unit for providing conveying power, the conveying unit comprises a bottom frame, two symmetrical vertical seats are fixedly connected to the top of the bottom frame, a conveying roller is rotationally connected between the two vertical seats, a driving assembly is arranged on the outer side of one vertical seat, and connecting assemblies are arranged at the two ends of the bottom frame; the driving assembly comprises a driving shaft rotationally connected to the interior of one vertical seat, a driving bevel gear is fixedly connected to the middle of the driving shaft, a driven bevel gear meshed with the driving bevel gear is fixedly connected to one end of the conveying roller, and a connecting hexagonal rod is fixedly connected to one end of the driving shaft; the other end of the driving shaft is provided with a six-edge insertion hole matched with the connecting six-edge rod. By arranging the conveying units arranged in parallel, the length of the conveying device can be flexibly combined according to actual requirements, and the conveying device is suitable for different production scenes.

The utility model relates to the technical field of medical instruments, and provides an arterial thrombus protection device and an embolism system. The filtering piece comprises a shape memory skeleton and a woven net film which is arranged on the shape memory skeleton and is used for intercepting thrombus; the two ends of the shape memory framework are closed up through the first annular piece and the second annular piece correspondingly. The first annular piece fixedly sleeves the guide wire, and the second annular piece slidably sleeves the guide wire; one end of the traction wire is connected with the second annular piece, and the other end is in vitro. According to the arterial thrombus protection device, the filtering piece can be adjusted in a self-adaptive mode according to the size of a blood vessel, the filtering piece can be better attached to the blood vessel, and therefore the effect of capturing fallen plaques or thrombus is improved, and the risk of an operation is reduced; and moreover, the position movement of the filtering piece caused by the length change of the guide wire placed in the body can be avoided, and the operation effect and safety are ensured.

This utility model relates to the field of braking device technology, specifically a tow truck front wheel braking device, including a frame, a tow bar, a brake assembly, and a locking member. The frame includes a body and wheels, with the wheels rotatably mounted on the body. The tow bar is hinged to the end of the body away from the wheels. The brake assembly is mounted on the body, and the tow bar can rotate along the hinged position to engage with and drive the brake assembly to brake the wheels. The locking member is mounted on the tow bar, and after the tow bar drives the brake assembly to brake the wheels, the locking member engages with the brake assembly. By using the locking member, when the tow bar rotates along the hinge to engage with the brake assembly, the braking state can be locked, thus achieving continuous braking. Furthermore, the locking member is hinged, and rotating along the hinged position allows for rapid release of the brake.

The utility model relates to welding equipment technical field discloses a kind of gas shielded welding wire feeding equipment, the gas shielded welding wire feeding equipment, including machine body, the inner wall rotation of machine body is connected with winding drum, the inside bottom surface of machine body is fixedly connected with wire feeder, the lateral wall rotation of machine body is connected with take-up roller, the lateral wall of take-up roller is provided with the pay-off assembly of control power cord length, the lateral wall of machine body is provided with the wire pressing assembly of wire to the ground.The gas shielded welding wire feeding equipment, pawl and ratchet wheel engagement, locking take-up roller, power cord cannot continue to release, to keep the length of cable stable, avoid cable drag or scattered, improve the cleanness of work environment, wire to the ground, make cable closely ground arrangement, cable closely ground after no longer form elevation, when footstep slip, no obvious resistance is generated, eliminate protruding obstacle, reduce the risk of tripping, improve the work safety of welding site.

The utility model relates to one-piece work clothes which comprise a work clothes body, the work clothes body comprises an upper garment and trousers which are connected into a whole, adjusting rings are arranged on sleeve parts of the upper garment and trouser legs of the trousers, the number of the adjusting rings is at least two, the two adjusting rings are arranged at different positions of the sleeve parts or the trouser legs in a surrounding mode, and an adjusting rope is arranged between the two adjusting rings in a penetrating mode. The adjusting rope is arranged between the two adjusting rings in a reciprocating penetrating mode, and a fixing buckle is arranged at the end of the adjusting rope. The distance between the two adjusting rings can be adjusted by pulling the adjusting rope, then adjustment of the length of the sleeve or the length of the trouser leg is achieved, adjustment is convenient, and the adjustment range is controllable; the adjusting rope is arranged between the adjusting rings in a reciprocating penetrating mode, the distance between the two adjusting rings can be evenly adjusted, the length of the sleeve part or the trouser leg can be stably adjusted, meanwhile, the fixing buckle is arranged at the end of the adjusting rope, the position of the adjusting rope can be fixed, and fixing is convenient.

The utility model discloses a pallet fork auxiliary device for a forklift, which relates to the technical field of engineering machinery and comprises a forklift main board, a plurality of clamping grooves are arranged on the inner wall of the forklift main board, and a mounting mechanism is arranged on the inner wall of the forklift main board. The installation mechanism comprises a plurality of clamping blocks, the outer walls of the clamping blocks are connected with the inner wall of the forklift main plate in a sliding mode, and the outer wall of the end, away from the forklift main plate, of the threaded rod is fixedly connected with a rotating block. The rotating block drives the threaded rod to rotate, the threaded rod rotates to drive the threaded barrel to move, the threaded barrel drives the clamping block to move, the clamping block is rotated into the clamping groove, then the clamping block is used for fixing the position of the whole device, the device is installed, and the device can be conveniently and rapidly installed and disassembled; and meanwhile, the position change of the device during use can be prevented.

The utility model belongs to the technical field of wrenches, and discloses an innovative wrench convenient for accurate positioning, which comprises a wrench rod, a cross-shaped component is mounted on the surface of the wrench rod, the cross-shaped component comprises a cross-shaped wrench handle, the cross-shaped wrench handle is mounted at the top end of the wrench rod, a connecting column is arranged at the bottom end of the wrench rod, and the cross-shaped wrench handle is connected with the connecting column. A cross twisting block is installed at the bottom end of the connecting column, a metal sleeve is installed at the top end of the connecting column, the wrench rod is slidably connected to the interior of the metal sleeve, a position positioning assembly is installed on the surface of the metal sleeve, and anti-skid threaded grooves are formed in the surfaces of the four ends of the cross wrench handle. The metal sleeve and the wrench rod are both made of steel materials and used for enhancing the overall strength, the thickness of the inner wall of the metal sleeve is large, and the wrench has the advantages that the wrench can be matched with a planter in a protective cover, an operator can conduct screwing treatment conveniently, and the length of the wrench can be adjusted according to different use conditions.