69results about How to "Less bending" patented technology

The invention belongs to the technical field of fluid braking equipment, and particularly relates to a safety limiting device for a pull rope oil cylinder, which comprises a fixed frame, a sliding base and a hydraulic oil cylinder, the device further comprises a stable transmission mechanism. On one hand, in the stretching and retracting process of the hydraulic oil cylinder, the sliding base is driven to move in the mode that the fixed pulley pushes the transmission steel cable, and in the moving process, due to the fact that the fixed pulley and the transmission steel cable are symmetrically distributed on the upper side and the lower side of the hydraulic oil cylinder, tension of the transmission steel cable on a connecting piece is more balanced; on the other hand, due to the arrangement of the fixed pulley and the sliding base, under the condition that the stroke of the sliding base is fixed, the stroke of the hydraulic oil cylinder is halved, the requirement for the rigidity of the hydraulic oil cylinder is lowered, and the bending probability of the hydraulic oil cylinder is lowered; the stability of the hydraulic oil cylinder for driving the sliding base to move is further enhanced.

The utility model discloses a power distribution control device convenient to adjust, which comprises a cabinet body, a cabinet door mounted on the front side of the cabinet body through a hinge, a mounting rack arranged in the cabinet body, a sliding rail fixedly arranged on the front side of the mounting rack, a fixing hole formed in the front side of the sliding rail, a sliding sleeve slidably arranged on the surface of the sliding rail, and a mounting plate fixedly arranged on the front side of the sliding sleeve. Fixing assemblies are arranged on the front sides of the mounting plates, and a mounting back plate is connected between the opposite faces of the mounting plates. The limiting effect of the fixing assembly on the mounting plate and the sliding sleeve is relieved, and the mounting plate is driven to move through the fixing assembly, so that the mounting plate drives the sliding sleeve to slide on the surface of the sliding rail, the positions of the mounting back plates are adjusted, and the distance between the mounting back plates can be adjusted; the situation that the installation backboard is too troublesome to adjust due to bolt fixation is avoided, the wiring terminal of equipment can be located at a proper position, connection of wires is facilitated, bending and crossing of the wires are reduced, and the risk of electrical faults is reduced.

This utility model discloses a wire storage device for a bar baling machine, comprising a frame, two guide roller assemblies, three wear-resistant guide roller assemblies, and a wire pressing assembly. The frame is welded together from two front and rear panels and a bottom plate, with a gap between the two panels. The three wear-resistant guide roller assemblies are located at the upper left, upper right, and lower left of the frame. The two guide roller assemblies are located in the lower middle part of the frame and are arranged left and right. The wire pressing assembly is located slightly above the middle of the two guide roller assemblies and can be positioned both inside and outside the frame. This utility model's bar baling wire storage device allows for switching between wire threading and wire pressing by flipping the swing arm, greatly increasing convenience. Simultaneously, it presses the baling wire into an "M" shape, minimizing wire bending and ensuring smooth, uninterrupted wire feeding.

This invention relates to the field of pipe processing technology, specifically to a machine tool with a movable bed carriage, including a frame. A core-pulling component is mounted on the surface of the frame. A lead screw assembly is located at the front of the core-pulling component. A movable carriage is mounted on the outer side of the lead screw assembly. An auxiliary bracket is provided on the surface of the lead screw assembly, and a support mechanism is provided at the front end of the movable carriage. This invention, through a novel structure of front and rear auxiliary brackets, provides better support for the pipe, solving the problem of insufficient carriage thrust and resulting minor deformation during pipe bending. This makes processing long materials simpler and faster, reducing pipe bending caused by the inherent deflection of thin-walled titanium alloy pipes. Simultaneously, the addition of a new core-pulling mechanism increases the core-pulling force while making the core-pulling distance more precise, creating a slow and uniform sliding state on the inner wall of the pipe, reducing the risk of pipe breakage and minimizing scratches in the bending area.

The utility model relates to cell dyeing field discloses the dyeing machine convenient to clean and maintain, including workbox, the both sides upper surface fixed connection of workbox has adjusting assembly, the outer wall of adjusting assembly is provided with support frame, the inside sliding connection of support frame has slide rod, the lower surface sliding connection of slide rod has second sliding block, the lower surface fixed connection of second sliding block has liquid outlet, the lower surface fixed connection of second sliding block has the air outlet, the inside fixed connection of workbox has the vibration block, the upper surface fixed connection of vibration block has the support block, the upper surface of support block is provided with the glass slide frame, the upper surface of glass slide frame is provided with the glass slide. In the utility model, the second cylinder is opened and drives second fixed block to move, drives second connecting rod and first connecting rod to rotate, further drives the clamping plate to move, thereby can reach the effect that the support frame makes the support frame internal structure convenient cleaning and maintenance with quick installation and disassembly support frame.

The utility model discloses a top air outlet type air conditioner outdoor unit which comprises a machine shell comprising a base plate formed by splicing a first bottom plate and a second bottom plate. The outdoor heat exchanger is arranged on the base plate and defines a heat exchange space, and a notch is formed in the side wall of the outdoor heat exchanger and comprises a first notch section and a second notch section. The compressor is arranged in the heat exchange space, is arranged on the first bottom plate and is close to the first notch section; the gas-liquid separator is arranged on the second bottom plate and is close to the first bottom plate; the oil separator is arranged on the first bottom plate and located on the side, away from the first notch section, of the compressor. The stop valve is close to the first notch section relative to the gas-liquid separator, and the projection of the stop valve on the chassis is located on the second bottom plate; and the four-way valve is arranged on the side, away from the first notch section, of the stop valve, the height of the four-way valve is between the height of the stop valve and the height of the gas-liquid separator, reasonable layout of all parts of the outdoor unit in a limited space is achieved, and manufacturability and maintainability are both considered while the space utilization rate is increased.

This utility model provides a water body detector lowering device, comprising: a base for fixing the water body detector, a cable hole on the base, a cable interface disposed in the cable hole, and a coupling component on the base; a lowering cable, the first end of which is provided with a cable connector, the cable connector being coupled to the cable interface to fix the lowering cable to the base; and a flexible load-bearing sleeve fitted on the lowering cable and connected to the coupling component via a connecting rope, wherein the lowering cable between the flexible load-bearing sleeve and the base is configured to be bent; wherein, when lowering the water body detector, the connecting rope bears the tensile force on the water body detector and transmits the tensile force to the flexible load-bearing sleeve.

The utility model relates to the technical field of light-emitting diode (LED) lamps, in particular to a lamp bead support with high production efficiency, which comprises a lamp holder and a mounting mechanism, the mounting mechanism comprises two protective transverse plates, two protective vertical plates, a plurality of side pads, a mounting component, two attaching components and two clamping components, an installation frame in an existing installation assembly is directly welded and fixed to the lamp holder through two welding plates, clamping plates and a plurality of spring pieces in a clamping assembly can adapt to installation of lamp beads of different specifications, the installation process is more convenient and faster, the lamp holder is of an integrated structure, bending is few, production is convenient, and the problems that the number of bent positions of an assembly base is large, gaps are large, and the production efficiency is high are solved. The integration degree is low, mass production is inconvenient, and the production efficiency is low.

The utility model discloses a sliding chain stable structure and sliding chain relates to sliding chain technical field, in order to solve the problem that the existing sliding chain end part is led to the easy bending deformation, the unstable sliding and the tooth easy damage of tooth part separation, the sliding chain stable structure is used to set up on the sliding chain, and the sliding chain includes female chain and subchain, and at least one end of female chain and / or subchain is equipped with stable structure, and the stable structure includes several sub body teeth, and at least partial connection is arranged between two adjacent sub body teeth, so that several sub body teeth are connected as an integral structure, so setting can significantly reduce the bending deformation of sliding chain end part in the use process because of the external force action or deformation, improve the sliding stability and reliability of sliding chain, and protect the tooth from being damaged.

The utility model provides a kind of high-reliability diaphragm structure and corresponding diaphragm pump, diaphragm structure includes including diaphragm body and connecting rod, diaphragm body includes push block, deformation membrane and diaphragm panel. Two sides of diaphragm panel are pump cavity and connecting rod respectively, the end face of push block away from pump cavity is provided with buckle groove, annular clamping groove is provided on the inner circumferential side wall of buckle groove, the connecting surface of connecting rod is provided with buckle block, the outer circumferential side of buckle block is provided with the convex ring part for cooperating with annular clamping groove, when buckle block is connected with buckle groove, the end face of push block and connecting surface are in contact. Deformation membrane is connected between push block and the inner wall of through-hole, push block protrudes diaphragm panel close to one side of pump cavity, the side close to pump cavity of deformation membrane is convex side, the distance between the convex side of deformation membrane and diaphragm panel is greater than the distance between the end face of push block and diaphragm panel. The connection of diaphragm body and connecting rod is reliable, the bending of deformation membrane is small, the deformation space of deformation membrane is large, and the service life of diaphragm structure is long.

The application relates to the field of building drainage, and a kind of outer wall drainage structure comprising a support, a rotating rod, a sliding rod and a water baffle, the support is used to be connected to an outer wall, the rotating rod is rotationally connected to the support around its own axis, the sliding rod is parallel to the rotating rod, the sliding rod is slidingly connected to the support, the sliding direction of the sliding rod is perpendicular to the axis of the rotating rod, one end of the water baffle is connected to the rotating rod, the water baffle is wound out of the rotating rod, and the other end of the water baffle is connected to the sliding rod. The support is installed to the window sill position of the outer wall; in rainy days, especially in the case of heavy rainfall, pull the sliding rod to unfold the water baffle, and make the water baffle shield the lower edge of the window frame or the whole window body, the water baffle blocks part or all of the rainwater falling to the lower edge of the window frame; after the rain intensity becomes small or stops raining, rotate the rotating rod to wind the water baffle, without affecting lighting and line of sight.

The utility model provides a kind of foundry air passage positioning core mould device, belong to mechanical processing field.The utility model a kind of foundry air passage positioning core mould device includes first core mould, second core mould, first spring, second spring, bush and plug, the first spring and the second spring are equipped on the plug, the first core mould and the second core mould coaxial assembly and are all T type structure, the second core mould center inside is equipped with stepped hole, the first core mould is coaxially nested in the second core mould, the bush is wrapped in the second core mould outside, the bush is detachably connected with the plug.The utility model can realize foundry air passage accurate positioning, effectively improve exhaust manifold machining precision, reduce positioning jam risk.

The household appliance lifting and transferring device is characterized in that a groove plate upwards wraps the rear end of a main plate in the length direction, the two ends of the width of the groove plate and the two ends of the width of the main plate form shaft groove sliding fit respectively, the upper surface of a wing plate is flush with the upper surface of the main plate, and a lug supporting plate is arranged on the side face, corresponding to the lower surface of the wing plate, of the main plate; according to the household appliance lifting and transferring device adaptive in length and stable in supporting, when the pulling piece operates the movable wheel part to be pressed downwards, the household appliance is jacked up, when the pulling piece operates the movable wheel part to be released, the household appliance is put down, the transverse groove corresponds to the protruding structure at the bottom of the household appliance, and then the rest part of the main plate can be attached to the bottom of the household appliance; through the sliding arrangement of the extension plate, the whole body formed by the main plate and the extension plate can adapt to household appliances of more sizes, the lug supporting plate on the main plate supports the extension plate, meanwhile, the lug supporting plate is limited by hollow seam shrinkage, and finally the possibility of bending or other deformation of the extension plate is reduced.

The application relates to a cooling device for an industrial aluminum profile extrusion line and relates to the aluminum profile processing technical field, which comprises a rack for supporting the cooling device, guide wheels which are rotationally installed on the rack and oppositely arranged, and aluminum profiles passing between the oppositely arranged two guide wheels, an adjusting assembly installed on the rack and used for adjusting the guide wheels, and a cooling assembly installed on the rack and used for cooling the aluminum profiles. In the process of air cooling of the aluminum profiles, the guide wheels guide the aluminum profiles, and the bending of the aluminum profiles caused by uneven cooling is reduced.

This utility model discloses a high-precision differential pressure transmitter, including a mounting plate. A groove is formed in the center of the mounting plate, and an opening communicating with the groove is formed inside the mounting plate. A bidirectional screw is rotatably fitted within the opening, and clamping components are threaded onto both ends of the bidirectional screw. A protective box is mounted on the upper side of the mounting plate, containing the clamping components and the differential pressure transmitter body. A fixing component corresponds to the differential pressure transmitter body. This utility model utilizes a sliding plate that slides within a recessed block, causing multiple teeth to mesh with two sector gears, thereby driving two arc-shaped clamping plates to move closer or further apart. The distance between the two arc-shaped clamping plates can be adjusted according to different pipe sizes, thus clamping and fixing pipes of different sizes, achieving stable support for the differential pressure transmitter body, and effectively reducing the occurrence of pipe bending or damage.

The heat exchanger comprises a plurality of fins and a plurality of heat exchange tubes, the fins are arranged in a stacked mode, each fin is provided with a plurality of hole opening parts, the hole opening parts are arranged at intervals in the length direction of the fins, and the heat exchange tubes are arranged in at least part of the hole opening parts in the arrangement direction of the fins; the fins are further provided with a plurality of protruding parts, the protruding parts are located on at least one side edge in the length direction of the fins, the protruding parts protrude out of one side in the thickness direction of the fins, and the protruding parts are arranged in the length direction of the fins at intervals. The fins of the heat exchanger have higher strength, and the surfaces of the fins have longer overall frosting time when the heat exchanger works.

This utility model relates to the field of power cabinet technology, specifically disclosing an electrical installation structure for a power cabinet, including a power cabinet body and a support plate. Rails are fixedly installed on both sides of the front of the power cabinet body. The support plate is slidably engaged below the rails, and a wire trough plate is slidably engaged above the support plate. A wire groove is formed on one side of the wire trough plate, and a fixing block is fixedly installed inside the wire groove. A wire rod is rotatably connected to the surface of the fixing block, and a vertical wire plate is fixedly installed below the wire rod. A junction box is fixedly installed below the vertical wire plate. This electrical installation structure of the power cabinet allows for flexible adjustment of the wire trough plate position according to actual needs, facilitating the connection of wires to electrical components. When wiring is required for electrical components in different locations, simply sliding the wire trough plate allows the wire groove to be closer to the target electrical component, reducing wire bending and stretching, and lowering the difficulty of wiring and the risk of wire damage.

The utility model discloses a kind of printing material box and 3D printing system, it is related to 3D printing technical field, the printing material box includes shell and feed and retreat material module, the shell is equipped with placement surface, the placement surface is used to supply the shell to be placed in the load surface of the printing material box, the shell is also equipped with containing space, material tray is equipped in the containing space, and the material tray is used to carry consumable;The feed and retreat material module is located in the containing space away from the one end of the placement surface, the feed and retreat material module is equipped with feed and retreat material passage, the feed and retreat material passage is along first direction extension arrangement, the first direction is crossed with the placement surface, and the feed and retreat material passage is used to supply consumable transmission.The technical scheme provided by the utility model aims at making the printing material box can adapt DIY 3D printer's feed and retreat material demand.

The utility model relates to laser pipe cutting machine technical field especially a kind of laser pipe cutting machine centering support mechanism, including base and backing plate, the upper end of the base is respectively attached with two backing plates, the upper end of the base is equipped with support structure, the surface of the base is provided with through-hole, the both ends of the backing plate are fixedly connected with lug plate. The laser pipe cutting machine centering support mechanism, by the cooperation of support structure and backing plate, four first bolts are rotated, so that four first bolts can be separated from the base, after the backing plate on both sides is removed, different surface radian backing plate is replaced and then installed again, the support block is rotated simultaneously, so that the thread of the upper end of the support block and the sliding block is separated, so that the support block can be replaced, so that the device can be suitable for more different diameter pipe cutting, pipe can be supported by multiple points, reduce the probability of pipe bending, while the device structure is simple, adjustability is high, improve cutting effect.

The utility model discloses a compact type refueling pump which comprises a refueling pump body, a liquid outlet part is arranged at one end of the refueling pump body, a refueling gun is detachably connected to the liquid outlet part, a wiring end close to a power interface is arranged on the refueling pump body, and the liquid outlet part and the wiring end are connected to the two ends of the refueling pump body respectively. A control switch is arranged on the wiring end, and an electric wire connected with the control switch and the refueling pump is arranged in the wiring end. The utility model has the following advantages and effects: the path of the power supply wiring is changed by adjusting the layout of the petrol pump, the interference is reduced, the performance and reliability of the equipment are obviously improved, the conciseness and functionalization of the appearance are realized due to the structure optimization, the practicability and the user experience are both considered, and the cost is reduced. Wiring is more convenient, wire harness abrasion is avoided, power supply wiring is shortened, and the service life is prolonged.

The utility model belongs to the technical field of cables, and discloses an anti-interference underground detection connection cable which comprises a sheath layer, a reinforcing layer is arranged in the sheath layer, a damp-proof layer is arranged in the reinforcing layer, a shielding layer is arranged in the damp-proof layer, limiting protrusions are arranged in the shielding layer, and the limiting protrusions are wrapped with flame-retardant filler. A supporting pipe wraps the center of the interior of the flame-retardant filler, a core pipe is arranged between the supporting pipe and the limiting protrusions, and a wire core is arranged in the core pipe. The sheath layer, the reinforcing layer, the damp-proof layer, the shielding layer, the limiting protrusions, the flame-retardant filler, the supporting pipe, the core pipe and the wire cores can deal with detection environments with high and low temperature and large acid-base difference, interference of the external environment and the interior of the cable is reduced, meanwhile, it is avoided that sharp foreign matter is prone to scratching the cable skin, consequently, the cable is damaged and exposed, and the service life of the cable is prolonged.

This invention discloses a battery string and a photovoltaic module, relating to the field of photovoltaic technology. The battery string includes battery cells, solder ribbons, and a fixing member. The solder ribbon includes an interconnected main body and a broken, suspended portion. The main body is welded to the battery cells, forming multiple solder joints. The broken, suspended portion protrudes from a predetermined edge of the battery cell. The fixing member is disposed between a solder joint closest to the predetermined edge of the main body and the predetermined edge, and is connected to both the battery cell and the main body. The fixing member includes an interconnected fixing portion and a first extension portion, the first extension portion extending from the fixing portion towards the predetermined edge. The battery string provided by this invention can effectively limit the free end of the broken solder ribbon, reducing its bending or offset, preventing it from contacting grid lines of different polarities and causing a short circuit, thus improving safety.

The utility model discloses a nixie tube assembling plug-in device, which comprises a main body, the upper surface of the main body is fixedly connected with a U-shaped seat, the upper surface of the main body close to the U-shaped seat is fixedly connected with a fixed bin, the lower surface in the fixed bin is rotatably connected with a mounting shaft, the upper surface of the mounting shaft is fixedly connected with a screw rod II, and the screw rod II is fixedly connected with a screw rod II. A first sliding block is arranged on the surface of the second screw rod, threaded holes are formed in the surfaces of the two sides of the first sliding block, the second screw rod is meshed with the threaded holes, and a first motor is fixedly connected to the upper surface of the fixing bin. A first motor, a second sliding block, a first concave block, a second concave block, a positioning piece, a pipe body and a connecting rod are arranged. The initial position of the pipe body is roughly determined by attaching the positioning piece to the surface of the pipe body, and a reference is provided for follow-up positioning. Afterwards, through movement of the moving block, the outer side surface of the containing frame is aligned with the pipe body as much as possible, and therefore the risk that the pins are bent or damaged is reduced to a certain degree.

This utility model discloses a combined extrusion die for aluminum alloy profiles, belonging to the field of aluminum alloy profile die technology. It includes an extrusion die and a forming tube. Fixed plates are fitted at both ends of the forming tube. Connecting ears are provided at the corners of the fixed plates and the extrusion die. Fins, flush with the edges of the fixed plates, are evenly spaced on the surface of the forming tube. Extrusion strips are provided on the inner wall of the forming tube. By evenly spaced fins on the outer side of the forming tube, the tube's strength is enhanced while the high temperature transmitted from the material to the forming tube is quickly dissipated outwards, causing the temperature of the material moving inside the forming tube to decrease accordingly. This gives the material a certain strength within the forming tube. Simultaneously, the extrusion die and forming tube form the material in two stages, allowing for segmented processing of the material. This distributes the pressure generated during processing, preventing the material from rapidly losing temperature and pressure after leaving the processing area, thus avoiding deformation.

This utility model relates to the field of catheter fixation technology, and proposes a catheter fixation device for nephrology hemodialysis. It includes a vertically arranged support, a mounting plate horizontally positioned at the upper end of the support, and several spaced threaded holes on the mounting plate. A positioning frame has through holes, through which connecting bolts pass and are threadedly connected to the threaded holes for fixing the positioning frame. The positioning frame is rotatable relative to the mounting plate. After the connecting bolts are tightened, the positioning frame is fixed to the mounting plate. A base plate is hinged to the positioning frame. A cover plate is detachably mounted on the base plate, and the cover plate and base plate are used to clamp the catheter. This technical solution solves the problem that existing fixation technologies cannot adapt to the routing and distribution of catheters.

The application provides a UAV hyperspectral image alignment method and device, a terminal and a storage medium. The method comprises the following steps: acquiring a first image of a target aerial photography area photographed by a UAV when flying along a first flight strip; acquiring a high-resolution satellite image of the target aerial photography area greater than the range of the first flight strip at the same photographing time as the first image, and acquiring a second image according to the high-resolution satellite image; taking the same position points of the overlapping parts between two adjacent hyperspectral images in the first image as first control points; taking the same position points of the overlapping parts between each hyperspectral image in the first image and a simulated hyperspectral image in the second image as second control points; for each hyperspectral image in the first image, aligning the first control points of the hyperspectral image with the first control points of a second hyperspectral image, and aligning the second control points of the hyperspectral image with the second control points of a target simulated hyperspectral image. The application can improve the accuracy and stability of UAV hyperspectral image splicing.

The utility model discloses a simple power distribution device for fast connection of new energy cables, which comprises a mounting bracket, a mounting plate, a cable fixing bracket, a post insulator, a rectangular bus fixing fitting and a connecting conductor, and is characterized in that the mounting bracket is fixed on the ground, the height of the mounting bracket meets the requirement of live-line distance, and the cable fixing bracket is horizontally arranged in the middle of the mounting bracket; the mounting plate is welded at the top of the mounting bracket, the surface of the mounting plate is provided with a fixing hole for mounting the post insulator, the post insulator is fixed on the top surface of the mounting plate, the rectangular bus fixing fittings are mounted at the top of the post insulator and are used for being connected with the connecting conductor, and the connecting conductor is horizontally mounted between the rectangular bus fixing fittings. Multiple new energy collection lines can be connected to the booster station in a centralized mode, materials are simple, and relevant requirements can be met under the conditions that the section of a collection line wire is too large and a cable distribution box is not suitable.

The utility model relates to the technical field of supports for packaging in silicon steel strip production, and discloses a support for packaging in silicon steel strip production, which comprises a main body mechanism and a supporting mechanism, the supporting mechanism is fixedly arranged in the main body mechanism, and the main body mechanism comprises a support main body, a base and a stand column. A base is fixedly installed at the bottom end of the support body, a plurality of stand columns are fixedly installed on the base, and the stand columns are perpendicular to the base. The movable block of the support can flexibly slide in the sliding groove of the bottom plate and is fixed through the positioning pin, the position can be rapidly adjusted according to the width of silicon steel strips, and accurate positioning of the silicon steel strips with different widths is achieved. By means of the adjustable structure, the strip materials can be effectively prevented from deviating in the placing process, an accurate initial position is provided for subsequent packaging work, and the packaging efficiency is improved.

The utility model relates to the technical field of wind power generation, in particular to a wind driven generator maintenance control tower which comprises a control tower body and a protection assembly, the control tower body is composed of a first supporting ring, a second supporting ring, a supporting column and a supporting platform, and the first supporting ring and the second supporting ring are arranged in parallel up and down. The two ends of the multiple supporting columns are connected with the first supporting ring and the second supporting ring correspondingly, the supporting platform is connected to the second supporting ring, an inlet and outlet is formed in the supporting platform and rotationally connected with a cover plate, and the protection assembly is connected to the first supporting ring. According to the utility model, the fan-shaped first protective frame and the fan-shaped second protective frame with the same structure are staggered up and down to form a protective frame with a top view angle at the center of a circle, so that when the protective frame is stored, the first protective frame and the second protective frame are changed from a staggered state to an up-down parallel state when a worker climbs up; and bending and unfolding of the protective net are reduced, and the situation that the protective effect is reduced due to damage to the protective net is prevented.

The utility model relates to a kind of split type cable guide mechanism, it includes shell, inside hollow setting, the both ends of shell are open, the wall body of the opening of the both ends of shell is recessed to form limiting shoulder towards the central axis of shell;Bellows, located in shell and the both ends of bellows are out of shell, cable is wrapped in bellows;Limiting piece, annular and limiting piece is fixedly connected on bellows, limiting piece is located between two limiting shoulder, the maximum outer diameter of limiting piece is greater than the minimum inner diameter of limiting shoulder;Spring, it is set on bellows and spring is located between two limiting shoulder, one end of spring and limiting piece abut, the other end and limiting shoulder abut.The application technical scheme can provide orientation to the movement of cable, reduce cable damage, so that the arm of robot keeps normal operation.