46results about How to "Meet fixed needs" patented technology

The utility model provides an automatic welding equipment of self -adaptation control has solved the problem of lower welding efficiency of automatic welding platform to steel frame. The utility model discloses a welding platform, the bottom fixed of welding platform is equipped with a plurality of branch legs, is equipped with detachable work piece fixed platform on the welding platform, still be equipped with the welding device of left and right translation on the welding platform, and the welding device is located the rear of work piece fixed platform, work piece fixed platform includes the rectangular frame of head -to -tail connection, and the top of rectangular frame is paved with a plurality of support unit boards that are set up and the left and right position is adjustable, support unit board is used to support the outer frame and a plurality of inner struts of being welded, is equipped with the first positioning member and second positioning member of adjustable position on support unit board, and the first positioning member is used to compress tightly fixed outer frame on support unit board, and the second positioning member is used to compress tightly fixed inner struts on support unit board.

This utility model relates to the field of experimental tools for mice, specifically an ankle joint fixation device for testing mouse muscle strength. It includes an ankle joint fixator, a U-shaped clamping member mounted on one side of the ankle joint fixator, a threaded opening at the bottom of the ankle joint fixator, and a tightening bolt threaded onto the threaded opening. Several height adjustment slots are provided on the surface of the clamping member, which is used to clamp and position the sensor. In this ankle joint fixation device for testing mouse muscle strength, the U-shaped ankle joint fixator, combined with the clamping member and tightening bolt, can firmly and stably fix the mouse's ankle joint. This fixation method effectively avoids the mouse struggling and moving during the test, ensuring the accuracy and reliability of the muscle strength test. The height adjustment slots on the side of the clamping member, as well as the threaded sleeve and locking bolt on the upper part of the ankle joint fixator, allow the height of the device to be flexibly adjusted according to actual needs.

The utility model discloses an automatic irrigation device for under-forest planting, which belongs to the technical field of irrigation and comprises a rotary spray head, a water supply pipe, a water supply pipe and a water supply pipe, a vertical support plate is arranged above the counterweight assembly; the connecting plate is fixedly connected with the vertical supporting plate and is in a C shape, a linear motor is installed in the vertical outer wall of the connecting plate in an embedded mode, a movable part of the linear motor is connected with a protection frame used for protecting the rotary spray head, and a rectangular pyramid-shaped protection cover is arranged above the protection frame; the lifting lug is installed on the outer wall of the protection frame, the lifting lug is rotationally connected with a rotating plate through a rotating shaft, the rotating plate is fixedly connected with the protection cover, the outer wall of the lifting lug is provided with a forward and reverse motor for providing power for the rotating shaft, and the side face of the vertical supporting plate is connected with a plurality of hoops for fixing a water supply pipe. The automatic irrigation device for under-forest planting not only can be protected and adjusted, but also can be stably supported.

This utility model relates to the field of medical device technology and discloses a multifunctional ureteroscope sheath fixation device, comprising: a base plate; connecting arms fixed on both sides of the base plate for fixing the base plate; a support ring disposed on the upper side of the base plate with an opening at the top; and a fixation clamp assembly disposed on the upper part of the base plate, wherein the fixation clamp assembly includes a main fixation clamp and a secondary fixation clamp; the main fixation clamp is disposed on the upper part of the base plate, and a first hinge assembly is provided on one side of the main fixation clamp so that the side of the main fixation clamp opposite to the first hinge assembly can be opened and closed; the secondary fixation clamp is disposed on the upper part of the base plate, and a second hinge assembly is provided on one side of the secondary fixation clamp so that the side of the secondary fixation clamp opposite to the second hinge assembly can be opened and closed. This utility model improves the stability and convenience of surgical operation, and enhances the safety and efficiency of surgery.

The utility model relates to eucalyptus planting technical field, especially portable eucalyptus planting fixing device, including lower limit ring shell, the lower limit ring shell's outer surface right part is provided with the tree lower part installation mouth, the lower limit ring shell's inner wall upper part is provided with the inner fixed groove, the lower limit ring shell's inner wall fixedly connected with elastic adjustment fixed structure, the lower limit ring shell's outer surface lower part annular array is fixedly connected with three bottom reinforcement architecture. The utility model discloses a kind of portable eucalyptus planting fixing device, provide basic installation support by lower limit ring shell, elastic adjustment fixed structure is realized to the elastic stable clamping of different thickness eucalyptus with the help of spring, tight resistance plate etc. And avoid damage, tree body reinforcing assembly further improves fixed reliability, bottom reinforcement architecture enhances the overall stability of device, can conveniently provide stable fixing for eucalyptus planting, help eucalyptus growth, also can satisfy portable use demand.

The utility model discloses a creasing device for carton processing, which comprises a processing bed and a creasing component arranged on the processing bed, and further comprises two groups of symmetrically arranged positioning components, the creasing component comprises a mounting beam, a creasing unit and an adjusting component, the adjusting component is arranged on the processing bed, the mounting beam is arranged on the adjusting component, and the creasing unit is arranged on the mounting beam. The height and the rotating angle of the mounting beam can be adjusted through the adjusting assembly, the number of the creasing units is two, the two creasing units are symmetrically arranged on the mounting beam, and each creasing unit comprises a mounting frame and a creasing wheel. The utility model relates to the technical field of carton processing, in particular to an indentation device for carton processing, which has the advantages that the position of an indentation wheel is adjustable, the indentation requirements in different directions can be met, the indentation requirements on paperboards with different specifications can be met, and the paperboards can be conveniently fixed in the indentation process.

The utility model relates to the technical field of wire netting, concretely to a dense hole wire netting hanging buckle positioning piece, including the positioning piece body of installation on the wire netting body, the positioning piece body is composed by connecting seat, installation base structure and hanging buckle structure, and installation base structure is preinstalled on the building steel reinforcement framework, and hanging buckle structure is used for fixing wire netting body, installation base structure includes two insertion slot of opening in connecting seat one side, and the inner wall insertion of two insertion slots has same installation clamp, and the one side of installation clamp and connecting seat is provided with first fixed component, the utility model can firmly fix whole hanging buckle positioning piece on building steel reinforcement framework, avoids the problem that traditional wire binding mode is easy to loosen, displacement, and tightly clamps wire netting body, effectively prevents wire netting from appearing loosening, deviation after being stressed, satisfies the demand of wire net fixing under different construction scenes, and simultaneously, still can make multiple pieces of wire netting accurate alignment when splicing.

The utility model discloses a kind of practical wall fixing devices on medical ship, it is related to medical ship wall fixing device technical field, including wallboard body and hole wall fixing profile, one side of hole wall fixing profile is contacted with the side of wallboard body, and hole wall fixing profile is threadedly connected with wallboard body, hole wall fixing profile is embedded with multiple fixed plates, profile cover plate is clamped on hole wall fixing profile, and the outer wall of fixed plate is respectively contacted with the outer wall of profile cover plate and the inner wall of hole wall fixing profile.The utility model is driven between hole wall fixing profile and wallboard body by multiple first fastening bolts and rounded rectangular hole to carry out horizontal or vertical connection, form long strip multi-point fixing, carry out multi-point stress, effectively dispersed the pressure of wall fixing device to wallboard body, improve the strength and stability of overall structure, can better resist the jolt and sway of hospital ship sailing.

The embodiment of the application provides a test tool, which comprises: a first base, a first force applying mechanism, a first clamping assembly and a supporting assembly are arranged on the first base, and the supporting assembly is used for supporting a component to be tested; a second base is arranged at a distance from the first base along the height direction of the first base, a second force applying mechanism and a second clamping assembly are arranged on the second base, the first clamping assembly is arranged opposite to the first clamping assembly, so that a clamping space is formed between the second clamping assembly and the first clamping assembly, and the clamping space is used for accommodating a fixed end of the component to be tested; the second base moves towards the first base along the height direction of the first base, can drive the second force applying mechanism to move synchronously, and then drives at least part of the first force applying mechanism to move along the stress direction of the component to be tested, so as to test the stress of the component to be tested. The scheme solves the problem that the test tool in the prior art cannot test the components whose forming direction is inconsistent with the stress direction.

This utility model discloses a quick clamping device for sensor patches, including a quick clamping mechanism, a pressure head, a clamping body, and screws. The quick clamping mechanism is adjustablely installed at one end of the clamping body, and the pressure head is located at the other end of the clamping body. It is used to press the sensor placed in the clamping body against the end of the quick clamping mechanism. The screw is threaded onto the clamping body to lock the quick clamping mechanism. By setting a push-pull quick clamp, the sensor patch can be quickly clamped. Compared with the traditional clamping method, the work efficiency is greatly improved, meeting the needs of quick positioning and fixing of sensor patches in the production process. By setting a spring and a pressure plunger, when the quick clamping mechanism is pushed, the sleeve position is fixed and the stroke of the quick clamp is fixed. Therefore, after the quick clamp is pulled down, the compression distance of the spring is fixed, so the clamping force provided is constant, thereby providing a stable force in the pressure curing process.

The utility model relates to the technical field of cable pre-embedding and fixing, and discloses a cable pre-embedding and fixing device for a photovoltaic field area, which comprises a bracket and a cable fixing assembly, and the cable fixing assembly comprises a large-aperture cable fixing mechanism and a small-aperture cable fixing mechanism; the multiple sets of large-diameter cable fixing mechanisms are arranged at intervals in the length direction of the support, a set of small-diameter cable fixing mechanism is arranged between every two adjacent sets of large-diameter cable fixing mechanisms, and each small-diameter cable fixing mechanism comprises a small-diameter cable fixing piece and a second lifting mechanism. The two ends of the small-caliber cable fixing piece are connected with the two fixing frames in a sliding mode respectively, and the second lifting mechanism is arranged on the small-caliber cable fixing piece and suitable for driving the small-caliber cable fixing piece to move in the height direction of the support. And multi-specification cable fixing requirements in a photovoltaic field area can be met.

The utility model relates to the technical field of building electrical engineering, and discloses building electrical engineering cable fixing equipment which comprises a fixing shell, the top side of the fixing shell is fixedly connected with a plurality of mounting shafts, the top sides of the mounting shafts are connected with a fixing shaft through clamping assemblies, the top side of the fixing shaft is provided with two arc-shaped clamping pieces, and the arc-shaped clamping pieces are connected with the mounting shafts through clamping assemblies. Supporting shafts are arranged on the inner walls of the two ends of the fixing shell correspondingly, the outer walls of the supporting shafts are connected with the outer wall of the fixing shell through locking assemblies so that the fixing shell and the supporting shafts can be fixed, the ends, away from the fixing shell, of the supporting shafts are rotationally connected with a top plate, and second springs are arranged on the inner walls of the two ends of the fixing shell correspondingly; the supporting shaft and the top plate are connected through a locking screw. According to the utility model, the fixed shell is fixed in the mounting groove by using the spring, the supporting shaft and the like, so that the device can adapt to mounting grooves with different sizes. And meanwhile, the cable fixing device is realized by dismounting and replacing the arc-shaped clamping piece, the overall installation is flexible, the adaptability is high, and various cable fixing requirements can be met.

The utility model relates to the technical field of coal mining, in particular to coal mine tunneling hole expanding and cutting equipment which comprises a bottom frame, a plurality of mounting holes are formed in the middle of the upper end of the bottom frame, grooves are formed in the left portion and the right portion of the front end of the bottom frame, and a lifting device is fixedly connected in the two grooves jointly. The right end of the lifting device is fixedly connected with a fixing device; the lifting device comprises two hydraulic cylinders, a mounting groove is formed in the right end of the supporting frame, and the two hydraulic cylinders are fixedly connected into the grooves respectively. According to the coal mine tunneling hole expanding and cutting equipment, through the synergistic effect of the lifting device and the fixing device, the height can be adjusted so as to adapt to different working conditions, the position can be accurately fixed so as to ensure the stability and safety of the equipment, the working efficiency is improved, and the practicability is high. A plurality of problems of a traditional supporting mode are effectively solved, so that the safety and the working efficiency of coal mining are comprehensively improved.

The utility model relates to the technical field of pile grippers, in particular to a pile gripper and an underwater deep cement mixing pile ship piling system.The pile gripper comprises a transition beam, connecting front arms and a connecting rear arm, the two connecting front arms are arranged on the first side of the transition beam in a protruding mode, and first sliding blocks are arranged at the free ends of the connecting front arms; the first sliding blocks on the different connecting front arms are opposite and spaced. The two connecting rear arms are arranged on the second side of the transition beam in a protruding mode, second sliding blocks are arranged on the connecting rear arms, and the second sliding blocks on the different connecting rear arms are opposite and spaced. The two opposite and spaced first sliding blocks are arranged, and the two first sliding blocks can be in sliding fit with the sliding grooves in the drill rod, so that the drill rod is fixed in the horizontal direction, and pile embracing is achieved; the two opposite and spaced second sliding blocks are arranged, the two second sliding blocks can be in sliding fit with the pile frame, and the height of the pile gripper is convenient to adjust; the pile gripper is simple in structure and convenient to disassemble, and has high structural reliability and use flexibility.

The utility model discloses a fence device for civil construction, and particularly relates to the technical field of construction fences, which comprises a mounting rod, a baffle is mounted on one side of the mounting rod, a plurality of fixing pipes are mounted at the top and the bottom of the outer wall of the mounting rod, and a plurality of supporting pipes are obliquely arranged on one side, far away from the baffle, of the outer wall of the mounting rod. A socketed pipe is arranged on one side, close to the fixed pipe, of the baffle; the end, close to the mounting rod, of the fixing pipe is rotationally connected with a sleeving ring, and the end, away from the mounting rod, of the fixing pipe is internally and slidably connected with an extension rod; supporting rods are slidably connected into the ends, away from the mounting rods, of the supporting pipes, rotating rings are rotatably connected to the ends, close to the mounting rods, of the supporting pipes, and fixing rings are rotatably connected to the ends, away from the supporting pipes, of the supporting rods. The utility model has the advantages that the fixing pipe can be conveniently adjusted to be connected with the baffles with different inclination angles, and the supporting pipe can be conveniently adjusted to be installed and fixed at different inclination angles.

The utility model discloses an integrated nasal indwelling catheter external adjustable fixing device, including mounting panel, the both sides of mounting panel all are fixedly connected with bandage, and two groups of bandage are divided into two ways and are fixedly connected together in the position of patient's cheek part, and the front side middle part of mounting panel is fixedly installed with the C type strip for placing catheter, and one side end of C type strip is fixedly connected with arc strip. The utility model discloses through the setting of bandage and C type strip and arc strip, and the bandage of mounting panel both sides is connected together in two ways in patient's cheek part, can firmly fix the device on patient's face, prevents it from shaking, shifting in the use process, simultaneously, according to the depth that arc strip inserts the containing groove, thereby adjusts the size of arc strip and C type strip's encircled space, and then can fix different model catheter, can satisfy the catheter fixing demand under different medical scene, has higher commonality.

The invention provides real estate surveying and mapping equipment with an auxiliary system, and relates to the technical field of surveying and mapping equipment. A handheld surveying instrument is placed in the outer shell, a measuring laser end is mounted at the top of the handheld surveying instrument, a protective window is fixed at the top of the outer shell, and the protective window is aligned with the measuring laser end; a connecting block is fixed to the top of the outer shell through a screw rod, two guide rods are arranged on the connecting block in a sliding mode, one ends of the front sides of the two guide rods are welded to a supporting block, one ends of the rear sides of the two guide rods are welded to a mounting base block, and each guide rod is sleeved with a spiral spring. When the outer shell is placed on a table top, the guide rod drives the cleaning block to automatically move forwards by means of the gravity of the outer shell and the handheld surveying instrument, so that the protective window is wiped and cleaned, it is ensured that a laser path is not interfered by stains in the measurement process, meanwhile, the supporting block is in contact with the table top to support the outer shell, the bottom of the supporting block is not in contact with the table top, and taking is convenient.

The invention relates to the technical field of medical instruments, in particular to a head fixing device which comprises a bed body, a mounting seat arranged in a bed head mounting shell of the bed body and a forehead clamping mechanism arranged on the rear side of the top of the mounting seat and connected with the pillow through a traction piece, a clutch mechanism is arranged on the rear side of the forehead clamping mechanism and connected with the forehead clamping mechanism through three telescopic electromagnetic rods. The cheek clamping mechanisms are arranged on the left side and the right side of the pillow and connected with the clutch mechanism, and the problems that in the prior art, a head fixing device for traditional Chinese medicine is prone to being pressed too tightly or loosened in the actual use process, the head fixing adaptability and precision are insufficient, linkage is lacked, and the clinical operation efficiency is low are solved. The problems that in the prior art, vomiting complications of a patient after lumbar puncture are not considered, body position changes of the patient are easily caused, the illness state is aggravated, the convenient reset unlocking capacity is not achieved, and secondary injury is easily caused when fixation is removed are solved.

The utility model discloses carton cutting equipment for carton processing, which comprises a workbench and a portal frame arranged on the workbench, the portal frame is provided with a cutting mechanism, the carton cutting equipment further comprises a fixing assembly and a dust removal assembly, the workbench is rotatably provided with a plurality of groups of automatic transmission rollers which are uniformly distributed at intervals, and the automatic transmission rollers are arranged on the workbench. The dust removal assembly is arranged on the workbench, the fixing assembly comprises a second motor, a two-way threaded rod and two symmetrically-arranged fixing units, the second motor is arranged on the workbench, the two-way threaded rod is rotationally arranged on the workbench, one end of the two-way threaded rod is connected with an output shaft of the second motor, and the other end of the two-way threaded rod is connected with an output shaft of the second motor. The fixing unit comprises a moving seat, a supporting rod, a limiting plate, a first hydraulic cylinder and a pressing plate. The utility model relates to the technical field of carton processing, in particular to carton cutting equipment for carton processing, which is convenient for automatically feeding and fixing paperboards, can meet the cutting requirements of the paperboards with different specifications, and has a dust removal function.

This utility model discloses an anti-loosening press-fit nut, relating to the field of fastener technology. It includes a press-fit nut body, a press-fit force-bearing end, an annular edging, a metal locking plate, and a plate. The press-fit force-bearing end is located at the top of the press-fit nut body, and the press-fit force-bearing end and the press-fit nut body are integrally formed. The annular edging is located at the center of the top of the press-fit force-bearing end, and the annular edging has a hollow structure. The metal locking plate is located on the inner wall of the annular edging and is connected to the bottom end of the inner wall of the annular edging. This utility model, when fixed to a plate, allows the embossed teeth to contact the plate and withstand external pressure. Under pressure, the bottom end of the embossed teeth presses into a pre-drilled hole in the plate, causing plastic deformation of the material around the hole. The deformed material is squeezed into the groove between the embossed teeth, forming a reliable locking structure. This effectively suppresses relative rotation between the press-fit nut and the plate, significantly improves torsional resistance, and meets the fixing requirements under high torque conditions.

The utility model discloses an antibody affinity screening separation device, including centrifuge body, the surface of centrifuge body is provided with centrifugal storehouse, the inner chamber of centrifugal storehouse is provided with drive link, the top outer circle surface fixed connection of drive link has a plurality of groups of connecting piece, and the fixed connection of the fixed sheet is established between two connecting pieces of every group, and the fixed sheet's outside top fixed connection has the first fixed plate, and the bottom of every group fixed sheet is connected with the second fixed plate that is opposite to the first fixed plate through the connecting piece, and the fixed assembly for fixing the test tube of different diameters is arranged between the first limiting board and the second limiting board of the same side, the utility model discloses the setting of fixed assembly adjusts the coincidence area of containing hole and round hole, and this fixes the test tube of different diameters to greatly improve the applicability of device, and simple operation greatly improves the use convenience of staff.

This invention relates to the field of controllers, specifically an electronic controller, comprising a housing, within which an energy storage element is disposed; the energy storage element is connected to the housing via a mounting unit; the mounting unit includes an anti-detachment unit and / or a limiting unit; the anti-detachment unit prevents the energy storage element from detaching from the housing; the limiting unit prevents the energy storage element from moving within the housing; this invention, through the installation unit, improves the stability and accuracy of the energy storage element's installation within the housing, while also facilitating the installation of the energy storage element; through the combined use of the anti-detachment unit and the limiting unit, the opposing blocking mechanism in the anti-detachment unit applies a backward pressing force to the columnar energy storage element; thereby achieving the fixed stability of the columnar energy storage element; the limiting unit provides axial limiting for the columnar energy storage element, preventing its movement within the housing.

The utility model belongs to the technical field of door and window processing, and discloses a fixing device for door and window profile cutting, which comprises a base, two positioning strips and a guiding rule, a sliding chute is arranged on the base, each positioning strip is provided with a strip-shaped adjusting hole, a bolt penetrates through the strip-shaped adjusting hole, the bolt is in sliding connection with the strip-shaped adjusting hole and the sliding chute, and the guiding rule is arranged in the sliding chute. The bolt is in threaded connection with a nut, a wing plate abutting against the edge of the base is arranged on one side of the guiding rule, and the included angles between the two side edges, adjacent to the wing plate, of the guiding rule and the wing plate are 45 degrees and 90 degrees respectively. The position and the inclination angle of the positioning strip can be locked and fixed by combining the sliding connection of the positioning strip and the base and the sliding connection of the bolt and the long-strip-shaped adjusting hole, so that the fixing requirements of sectional materials with different specifications, sizes and inclination angles during cutting are met, and the angle positioning function of the guiding rule is matched, so that the cutting efficiency is improved. The inclined angle of the positioning strip can be quickly and accurately adjusted, operation is easy and convenient, and the accuracy of the inclined plane angle is improved.

The utility model provides a kind of winding fixed anti-loosening reinforcing type transformer, belong to transformer technical field, including transformer body, the inner chamber of transformer body is embedded with equidistant distribution's sealed partition, the inner chamber of transformer body is evenly formed winding chamber by equidivided sealed partition, the horizontal sliding of two side edges' H type slide on transformer body inner wall.Anti-loosening frame is located above the inside of winding chamber, the coil of winding top is tightened by anti-loosening frame, avoid the coil loosening and falling off of winding outer wall, form the telescopic frame of mutual sleeve joint between H type slide of each sealed partition two sides, by the linkage assembly outside transformer body, so that all H type slide drive anti-loosening frame to the outer wall of winding moves, so that the relative movement of two anti-loosening frames in each winding chamber, to adhere on the outer wall of coil, avoid coil loosening and falling off, and then to the protection effect of transformer.

The utility model belongs to the technical field of medical apparatus and instruments, concretely relates to a mouse fixer for eye examination, which comprises a base, an adjustable cross bar, a head fixing clamp and a body fixing sleeve, the base is provided with a fixed lower jaw support and two base supports, the adjustable cross bar capable of being adjusted in height is arranged above the two base supports, the head fixing clamp is arranged above the adjustable cross bar, the head fixing clamp has a scissors type structure, a mouse is placed on the base, the lower jaw of the mouse is placed on the fixed lower jaw support, the body of the mouse is fixed on the base through the body fixing sleeve, and the ears of the mouse are clamped through the head fixing clamp. The utility model can meet the needs of fixing mice of different sizes, fix the head and not hinder the ophthalmic examination, and has the advantages of simple design and high practicability.

The utility model discloses a moment alloy equipment wire clamp which comprises a supporting seat and a fixing plate matched with the supporting seat, two wire fixing grooves used for placing wires are arranged on the supporting seat, insections are arranged in the wire fixing grooves, a pressing seat is arranged on the fixing plate, a first bolt is arranged in the pressing seat, and a second bolt is arranged in the pressing seat. One end of the first bolt penetrates through the fixing plate and the wire fixing groove to be in threaded connection with a nut, a pressing piece used for pressing the wire is adjustably arranged on the fixing plate, and a fixing mechanism used for fixing the first pressing plate is arranged on the fixing plate. The beneficial effects of the utility model are that through the cooperation of the supporting seat, the fixing plate, the pressing member, the pressing seat and other structures, even if the diameters of the wires in the two wire fixing grooves are different, the wires can be pressed and fixed, the adaptability of the wire clamp is improved, and the pressing member can be changed in style according to the use requirements, so that the wire clamp is convenient to use. Therefore, most wire fixing requirements can be met, and the working efficiency of workers can be improved.

The application discloses a traction support for traction Kirschner wire, and relates to the technical field of medical devices, and has the technical features that the support comprises a plurality of Kirschner wire distraction forceps, each distraction forceps is formed by connecting a first forceps arm and a second forceps arm through a hinge shaft, the top end of the forceps arm is provided with a double-diameter compatible needle channel and a Kirschner wire fixing knob, and the lower half is provided with a distraction and pressure adjustment assembly. In addition, the support further comprises a clamp for connecting the two distraction forceps. The upper half of the forceps arm is in a small C shape in a closed state and is in a large C shape in a distraction state, and the design of the C shape is used to obtain a larger exposed and visible range in the middle of the distraction forceps. The application realizes multi-plane operation through the clamp, and the distraction and pressure adjustment assembly guarantees the flexibility and accuracy of operation. Compared with traditional devices, the traction support has the advantages of high stability, adaptability to Kirschner wires with different diameters, better exposure and visibility conditions in a distraction range, hard distraction and pressure and soft and hard distraction and pressure, and meets the needs of complex operations.

The utility model relates to a kind of protective devices for cleaning, for the protection when rail vehicle electrical component terminal cleaning, including two protective components rotatably connected in the same side, two protective components can form protective space in closed state, protective space is used to accommodate the need protection part of the object to be cleaned, one of the protective components is provided with a fixing component, and the fixing component is used to fix the object to be cleaned with the need protection part into the protective space. The protective device for cleaning of the utility model avoids damage to the need protection part when cleaning the surface of the object to be cleaned.