151results about How to "Fixed reach" patented technology

The invention relates to a proton exchange membrane for a medium-high temperature fuel cell and a preparation method thereof. The proton exchange membrane for the medium-high temperature fuel cell is compounded by nitrogen heterocyclic compound grafted inorganic nanoparticles and perfluorosulfacid resin, and the preparation method comprises the following steps: synthesizing precursors of the nitrogen heterocyclic compound grafted inorganic nanoparticles; preparing mixed solution of the precursors of the nitrogen heterocyclic grafted inorganic nanoparticles and the perfluorosulfacid resin; performing in situ synthesis of the nitrogen heterocyclic grafted inorganic nanoparticles; and preparing a nitrogen heterocyclic grafted inorganic nanoparticles-perfluorosulfacid composite membrane, namely the proton exchange membrane for the medium-high temperature fuel cell. The proton exchange membrane can replace water to be used as a proton conduction medium at normal, medium or high temperature, the nitrogen heterocyclic functional group has the performance of partial flow in the membrane, and the proton exchange membrane can avoid the attenuation phenomenon of the cell performance due to the fact that the nitrogen heterocyclic compound runs off along with water generated by electrochemical reaction, and can avoid the generation of catalyst poisoning phenomenon caused when the nitrogen heterocyclic compound flows to the surface of an electro-catalyst.

The invention provides a fixing device and an electronic system. The electronic system comprises an electronic device and the fixing device. The fixing device comprises a fixed bracket, a slide rail member and a sliding member. The fixed bracket is fixed on the electronic device. The slide rail member can be rotationally pivoted on the fixed bracket. The slide rail member has a slide rail which comprises a first end and a second end. The sliding member can be arranged on the fixing bracket in a sliding manner and comprises a protrusion capable of sliding along the slide rail. When the slide rail member rotates with respect to the fixed bracket so that the slide rail pushes the protrusion from the first end to the second end, the sliding member is inserted into a locking hole on the electronic system. Thus, the fixing device of the invention avoids using a locking and fixing manner by screws so as to reach the effect of fixing the electronic device on the electronic system.

The invention discloses a bamboo green removing device for bamboo processing and relates to the technical field of bamboo machinery. The bamboo green removing device for bamboo processing comprises abase. A first motor is fixedly connected to the bottom of the left side of the base. A first rotating wheel is fixedly connected to an output shaft of the first motor. The first rotating wheel is in driving connection with a second rotating wheel through a first belt. A rotary lead screw is fixedly connected to the axis of the second rotating wheel. The rotary lead screw is rotatably connected with the inner wall of the base. The bamboo green removing device for bamboo processing can conduct fixing and automatic feeding on bamboos and achieves the effects of improving the bamboo green removingeffect in place of manual feeding, reducing the workload of workers and improving the processing efficiency, and the bamboos are automatically pressed through a tensioning wheel so that the operationstability of a cutting tool can be guaranteed; meanwhile, a wheel of the cutting tool rotates to conduct scraping on bamboo green on the surfaces of the bamboos; the bamboo green scraping effect is effectively guaranteed, the processing efficiency is improved, and labor force is reduced.

The invention relates to the technical field of frame machining, and discloses a punching device for a motorcycle frame. The punching device comprises a machine frame, a workbench is fixed to the machine frame, and a guide chute is formed in the workbench. The workbench is sequentially provided with a feeding mechanism, a fixing mechanism and a punching mechanism which are arranged along the guidechute. The feeding mechanism comprises a conveying trough, a discharging outlet of the conveying trough is in butt joint with the guide chute; and a push plate is slidably connected into the conveying trough, and a pushing block is slidably connected into the guide chute. The fixing mechanism comprises a wedge rod and a piston cylinder which are slidably connected to the machine frame, and the piston cylinder is fixedly connected with the wedge rod. A suction cup communicating with the piston cylinder, a piston is slidably connected into the piston cylinder, and a piston rod is fixed to the piston. The punching mechanism comprises a base, and a drill bit is fixed to the base. The base and the piston rod are separately provided with gear teeth, and a first gear is rotatably connected to the machine frame. One side of the first gear meshes with the piston rod, and the other side of the first gear meshes with the base. The punching device for the motorcycle frame can automatically feed,and can fix a steel pipe when punching, and simultaneously perform the automatic punching.

The invention discloses a forged piece manipulator. The forged piece manipulator comprises a supporting rod. A lifting platform is fixedly connected to the top of the right side of the supporting rod.An electric telescopic rod is fixedly connected to the right side of the lifting plate. The top of the lifting plate is fixedly connected with a motor. The output end of the motor penetrates throughthe lifting plate to extend to the bottom of the lifting plate. The output end of the motor is fixedly connected with a threaded rod. Through arrangement of the motor, the threaded rod, a first threadsleeve, rotary shaft blocks, first connecting rods, a second thread sleeve, second connecting rods and grippers, the forged piece manipulator achieves the effects that a forged piece can be clamped firmly and reliably, the surface quality defects such as impact damage caused by instable clamping of the forged piece are eliminated, and the rejection rate is reduced; accordingly, the problems thata commonly-used clamp only has two fulcrums to make contact with the forged piece and cannot clamp the forged piece unstably, the surface of the forced piece is damaged badly in the transferring process, the labor intensity of workers is large, and the working efficiency is low are solved.

The invention discloses a mould clamping tool, and relates to the technical field of tool clamps. The mould clamping tool comprises a base, a placing table used for placing a mould is arranged on thebase, mounting grooves are arranged in the placing table, the placing table comprises clamping block used for clamping the mould, a sliding block is slidably connected in the mounting grooves, the sliding block is matched with the clamping block, a driving piece used for pushing the sliding block to slide towards one side of the clamping block is arranged on the base, and the driving piece is usedfor pushing the sliding block to be matched with the clamping block to clamp the mould, and auxiliary clamping pieces are arranged on the two sides, adjacent to the driving piece, of the mounting groove in the base. According to the mould clamping tool, the mould can be clamped and positioned in the using process of the mould, so that the position of the mould is stable and firm, different specifications and types of molds can be correspondingly installed, the overall application range is wide, and the application area is wide, meanwhile, the mould can be well fixed, and the stability of themould in the machining process can be kept.

The invention discloses an arm muscle explosive power rehabilitation training device. The arm muscle explosive power rehabilitation training device comprises a backrest and a strong spring, wherein a backing pillow is arranged in the middle of the top of the backrest, and sliding grooves are formed in two sides of the backrest. For the arm muscle explosive power rehabilitation training device, first, an arm fixing block is fixed through a telescopic belt, a wrist fixing belt on a first connecting arm carries out secondary fixing on the arm, a flexible cushioning belt for protecting the arm is connected between the first connecting arm and a second connecting arm, so that the arm can be fixed, meanwhile, during use, the arm is protected from being injured by the strong spring, second, a hand-muscle developer is arranged at one side of the first connecting arm, therefore, a user can exercise the explosive power of the arm muscle and also can train the strength of the hand, so that the training effect is the optimal, finally, the slider slides in the sliding groove to drive the second connecting arm to slide, therefore, the user can slide the second connecting arm to the needed position according to the self demand, and thus convenience is provided for the user.

The invention relates to a prefabricated composite floor slab fixing mounting construction method. Equipment adopted by the method comprises a moving device, a hydraulic cylinder, a positioning deviceand a fixing device, wherein the hydraulic cylinder is fixedly installed at the upper end of the moving device, the positioning device is fixedly installed at the upper end of the hydraulic cylinder,the fixing device is fixedly installed at the front end of the positioning device, the positioning device comprises a fixing plate, an electric push rod, a supporting plate, balls, a rubber plate anda positioning block, and the fixing device comprises a telescopic support, a rectangular long plate, a small motor, a rotating frame, a first gear, a second gear and a lifting rope frame. According to the method, through cooperation between the positioning device and the fixing device, a composite floor slab is stressed evenly in the whole moving and fixing mounting process, the surface is not damaged, and through cooperation among the moving device, the positioning device and the fixing device, the equipment can freely move in a small working space, so that the purpose of positioning the composite floor slab is achieved.

The invention discloses a motor assembling and fixing structure, a voice coil motor, a photographic device and an electronic product. Key points of the technical scheme are as follows: the motor assembling and fixing structure comprises a base, a carrier, an upper spring, a lower spring, a magnet and a coil, four positioning columns are integrally formed on the base, the upper spring comprises twosymmetrically-arranged upper spring parts, each upper spring part comprises an inner connecting part, an outer connecting part and two upper cantilevers, and the outer connecting parts and the uppercantilevers correspond to the positioning columns; hot riveting columns are integrally formed on the positioning columns, hot riveting holes corresponding to the hot riveting columns are formed in theouter connecting part, the four positioning columns are connected with a cover plate used for covering the outer connecting part, and the cover plate and the positioning columns clamp and fix the outer connecting part. The outer connecting part is clamped and fixed through the cover plate and the positioning column, the upper spring can be effectively fixed, the step of fixing the upper spring tothe positioning column in a hot riveting mode is omitted, accurate positioning is achieved, and the product quality is improved.

The invention relates to the field of seedlings, in particular to a lifting earthing apparatus for seedling planting. The technical problem of the invention is to provide a lifting earthing apparatusfor seedling planting which is used for fixing seedlings and carrying out earthing and burying and which is low in labor intensity and simple to operate. The lifting earthing apparatus for seedling planting according to the technical scheme comprises a bottom plate, wheels, a vertical plate, a slide rail, a first slider, a first spring, a first pull cord, a hanger ring, hanger hooks, a cylinder, afirst clamp rod, a second clamp rod and the like; the wheels are arranged at the bottom of the bottom plate; the vertical plate is arranged at the top of the bottom plate; the first slide rail is arranged in the right middle of the vertical plate; the first slider is arranged on the first slide rail; the first spring is connected between the bottom of the first slider and the bottom end of the first slide rail. Seedlings are fixed via the first clamp rod and the second clamp rod; earthing and burying is performed through a push plate; manpower and material resources are greatly saved; seedling fixation, earthing and burying is carried out, the labor intensity is low, and operating is simple.

The invention discloses a geographic information acquisition device for territorial space planning. The device comprises a base and an equipment body, wherein the equipment body is fixedly connected to the upper side of the base, a camera is arranged on the equipment body, four mounting grooves are symmetrically formed in the lower side of the base, two first rotating shafts are rotatably connected to the inner side of the base, the two ends of the two first rotating shafts penetrate through the inner side of the base and extend into the mounting grooves, the first rotating shaft in each mounting groove is fixedly connected with a supporting leg, two fixing assemblies used for limiting the first rotating shafts are arranged on the inner side of the base, and a displacement assembly is arranged on the lower side of each supporting leg. The design is reasonable, an adjusting assembly is arranged, a grip is rotated, the grip drives a gear to rotate through a connecting rod and a second rotating shaft, the gear rotates to drive the supporting legs to move up and down, and therefore the purpose of adjusting the extension length of the supporting legs is achieved, and the device can adapt to uneven land conveniently.

The invention relates to screening equipment, and particularly relates to ground beeltle size screening equipment for the traditional Chinese medicine department. The invention aims to provide the ground beeltle size screening equipment for the traditional Chinese medicine department, and the ground beeltle size screening equipment for the traditional Chinese medicine department can autonomously disassemble and fix a screening frame, automatically rotate and screen, and easily maintain the rotating state of the screening frame. The ground beeltle size screening equipment for the traditional Chinese medicine department comprises a base, a screening assembly and a fixing assembly, and supporting frames are connected to the two sides of the upper portion of the base; the screening assembly isarranged between the inner sides of the upper portions of the supporting frames; and the fixing assembly is arranged on the screening assembly. According to the ground beeltle size screening equipment for the traditional Chinese medicine department, a discharging barrel is rotated clockwise, so that the discharging barrel makes contact with clamping blocks, the clamping blocks are pushed to moveoutwards, finally, the discharging barrel is clamped and fixed, the discharging barrel and the screening frame are kept still under the condition of rotating by 90 degrees, the effect of clamping andfixing the discharging barrel is achieved, the discharging barrel and the screening frame are kept at the positions rotating by 90 degrees, the discharging barrel does not need to be manually stabilized for a long time, and manpower is greatly saved.

The invention discloses an electric power overhauling ladder, and belongs to the technical field of electric power cable overhauling. The electric power overhauling ladder comprises two cables and a plurality of pedals fixed between the cables, and two hanging heads are fixed to the top end of each cable; each hanging head comprises a first inverted-U-shaped hook and a pulley arranged in the firstinverted-U-shaped hook, and a braking device is arranged on the side edge of each hanging head; a first pulling rope and a second pulling rope are adopted to start the braking devices before an overhauling worker does not climb the rope ladder; and the electric power overhauling ladder is fixed to a cable to avoid sliding, so that overhauling operation is more safe, and the surfaces of the hanging heads and the braking devices are sprayed with insulation wear-resistant coating, so that the service life is greatly prolonged.

The polishing equipment with the dust removal function for building engineering decoration comprises a fixed cover, a sliding groove is formed in the inner wall of the fixed cover, a sliding rod is slidably connected into the sliding groove, a first motor is fixed to the side end of the sliding rod, and an electric telescopic rod is fixedly connected to the rear end of the first motor; the rear end of the electric telescopic rod is fixedly connected with the fixing cover. The front end of the first motor is fixedly connected with a grinding disc. A second motor is fixedly connected to the rear end of the fixing rod; fan blades are fixedly connected to the upper end of the second motor; a pipeline is fixedly connected to the lower end of the air inlet cover; a dust collection box is fixedly connected to the front end of the pipeline; the side end of the dust collection box is fixedly connected with a handle; the portable polishing device has the advantages that the portable polishing device is simple in structure and low in manufacturing cost, and dust removal and portable high-position polishing can be realized only by means of simple operation.

The invention provides an interactive feedback system for modern education and teaching, including a platform switchboard. The platform switchboard is fixedly connected to an installation base throughmultiple bolts, and the upper end of the platform switchboard is fixedly connected with a plurality of shaft pins. The other ends of the shaft pins are fixedly connected with a protective cover. A host touch screen is arranged on the platform switchboard. Two lateral fixing pieces are symmetrically arranged on the side walls of the host touch screen. Vertical fixing components are arranged at theupper and lower ends of the host touch screen. The platform switchboard and the host touch screen are detachably connected, so that disassembly and installation are extremely convenient. The structure design is reasonable. It is extremely convenient to replace or install the host touch screen, so that both time and labor are saved in installation. Maintenance can be completed by replacing the host touch screen only, and an effect of resource saving is achieved. Therefore, the interactive feedback system for modern education and teaching has high practical value.

The invention relates to the technical field of circuit board processing, and discloses a buffer clamping device for flexible circuit board processing, which comprises a machine table, a fixed frame is fixedly mounted at the top of the machine table, a guide rail is movably mounted in the fixed frame, a clamping seat is sleeved outside the guide rail, and a limiting groove is formed in the front surface of the clamping seat. A limiting block extending out of the clamping seat is movably installed in the limiting groove, a carving head body is fixedly installed on the front face of the limitingblock, and fixing grooves located in the clamping seat are formed in the inner top wall and the inner bottom wall of the limiting groove. According to the buffer clamping device for flexible circuitboard machining, the limiting groove is formed in the clamping seat, the limiting block can be limited, meanwhile, the carving head body is limited, the fixing groove is formed in the clamping base, the telescopic groove is formed in the limiting block, and the clamping spring is installed in the telescopic groove; and a clamping block extending into the fixing groove is mounted on the clamping spring, so that the limiting block can be fixed.

The invention discloses an insulating soft ladder used for electric power cable overhaul, and belongs to the technical field of electric power cable overhaul. The insulating soft ladder comprises twocable ropes and a plurality of pedals fixed between the cable ropes; two hanging heads are fixed at the top ends of the two cable ropes respectively; each hanging head comprises an inverted U-shaped hook and a pulley arranged in the inverted U-shaped hook; and a brake apparatus is arranged beside the hanging head. The brake apparatus is arranged on the insulating soft ladder, and the brake apparatus can be operated by an overhaul staff by adopting a pulling rope; and the insulating soft ladder is simple in structure, safe and practical, and long in service life.

The invention discloses an adjustable fixing device for a neurosurgery system. The adjustable fixing device comprises a base; sliding grooves are formed in the upper surface of the base, and sliding seats are arranged in the sliding grooves; the adjustable fixing device for the neurosurgery system is fixed to the two sides of a thoracic cavity through a left side plate and a right side plate, and a first lead screw is driven by a first stepping motor, so that the right side plate moves relative to limiting seats ; a second lead screw is driven by a second stepping motor, so that the limiting plates move up and down along direction guiding pillars; the height of the limiting plates are adjusted, so that the condition that a patient turns over without consciousness is prevented; the ends of girding belts can be clamped by fixing clamps, arms of the patient can be fixed to motion bars through the girding belts, and the positions of the motion bars can be adjusted by moving forwards and backwards and fixed through adjusting nuts, so that overturn of the thoracic cavity and unconscious movement of the arms are effectively limited, fixation over the patient is achieved, the structure is stable and not prone to loosing, and adjustability is high.

The invention relates to a building construction water supply and drainage engineering construction device and a drainage engineering construction process. The device comprises a supporting table, a moving device, a locating device and a fixing device. The moving device is mounted at the lower end of the supporting table. The locating device is mounted on the left side of the upper end of the supporting table. The fixing device is mounted at the right end of the locating device. The moving device comprises universal wheels, connecting rods, a small motor, a toothed clamp block, a magnet and anelectromagnet. Equipment is fixed through the moving device, the toothed clamp block is utilized so as to achieve the aim of controlling the universal wheels to stop motion, pipelines are located, mounted and fixed through the locating device and the fixing device so as to achieve the aim that the pipelines can be mounted and located without worker cooperation, the pipelines are further limited from moving downwards through ratchet wheels so as to achieve the aim of further fixing the pipelines, and the pipelines can smoothly enter clamp holders through downward-protruding arc grooves.

The invention discloses a building structure for a noise reduction construction site house, relating to the technical field of buildings. The building structure comprises a house frame and a house body, the house body is formed by assembling a plurality of wallboards, the wallboard is formed by splicing a plurality of sound insulation boards, installing grooves are formed in the upper end and thelower end of the house frame, accommodating cavities are formed in one ends of the sound insulation boards, inserting boards are arranged in the accommodating cavities in a sliding manner, one ends ofthe sound insulation boards are inserted into the installing groove in the lower end of the house frame, the other ends of the sound insulation boards are inserted into the installing groove in the upper end of the house frame through the inserting boards, and locking pieces are arranged in the accommodating cavities. Each sound insulation board comprises a base layer, a sound insulation layer and a decoration layer, the base layer is arranged on the side away from the indoor space and connected with the house frame, a sound insulation cavity is formed between the base layer and the decoration layer, penetrating holes communicating with the sound insulation cavity are formed in the base layer, the sound insulation layer comprises sound insulation blocks which are arranged in the sound insulation cavity at intervals and arranged in the length direction of the sound insulation cavity, and the plurality of sound insulation blocks are arranged corresponding to the penetrating holes respectively. The noise reduction effect of the construction site house is improved.

The invention relates to a plastic building template which comprises a planar main body plate and a strengthening rib positioned on one side of the planar main body plate, wherein the planar main body plate and the strengthening rib are produced by a solid plate which is formed by one-step molding of a PVC (polyvinyl chloride) foam material, the Vicat softening temperature of the solid plate is 97 DEG C, the elastic modulus is 3000, and the anti-bending degree is 60MPa. The plastic building template is light in weight, high in strength and surface smoothness and friction-resistant, is easy to clean, has no deformation, and can be cut and nailed arbitrarily according to needs without affecting the reuse of the template almost; any combination and supporting structure can be completed alone; square lumbers do not need to be attached to the back surface of the plastic building template to improving the strength of the template; and the material of the template can be recycled. The plastic building template is easy to process and manufacture, and the plastic building template further has the characteristic of one-step demolding and molding, and the filling of a hollow part and the re-strengthening problem of the side surface of the template do not need to be considered.

The invention discloses a foundation pit slope protection reinforcing structure for civil engineering, and relates to the technical field of foundation pit engineering, the foundation pit slope protection reinforcing structure comprises at least two transverse supports, a longitudinal support, a fixing structure and a reinforcing structure, the transverse supports are transversely arranged along the slope surface of a slope protection, and each transverse support is of a spliced structure and comprises at least two supporting pipes, at least two longitudinal supports are arranged in the longitudinal direction of the slope surface of the slope protection, a pair of open holes is formed in the two sides of the supporting pipe, the longitudinal supports penetrate through the open holes, the fixing structure is used for fixing the longitudinal supports to the supporting pipe, and the reinforcing structure is installed below the fixing structure. Fixing of the supporting pipes and the longitudinal supports is completed through the fixing structures, a grid type reinforcing structure is formed, the stability of the grid type reinforcing structure on the slope surface is improved through the conical thorns of the reinforcing structure, and drainage of the device can be achieved through inner cavities of the supporting pipes.

The invention relates to sheet iron can surface paint spraying equipment and a surface paint spraying technology. The sheet iron can surface paint spraying equipment comprises an installation frame, apaint spraying suite and a pressing suite. The paint spraying suite and the pressing suite are arranged in the installation frame from bottom to top in sequence, and the pressing suite is installed on the installation frame. The sheet iron can surface paint spraying equipment and the surface paint spraying technology solve the following problems in the existing surface paint spraying process of sheet iron cans, wherein the problems include that when the existing sheet iron cans are subjected to paint spraying work, commonly single sheet iron cans are sprayed in sequence, the paint spraying assembly line is long, a large amount of paint is wasted, and idle cost is seriously; and when the existing sheet iron cans are subjected to paint spraying work, the sheet iron cans are fixed commonly ,deformation of the surfaces of the sheet iron cans are often caused in the existing fixing mode, and the quality of the products is seriously influenced.

The invention discloses an anchor bolt which comprises a nut, a screw rod and an expansion part. A threaded section is arranged at the outer end of the screw rod, and a bolt head is arranged at the inner end of the screw rod; the expansion part is in a tubular shape, a plurality of expansion holes which guide the expansion part to generate expansion and deformation are radially arranged on the tube wall, an expansion slice is formed between every two adjacent expansion holes at the each row, the expansion part is sleeved on the screw rod, and the inner end of the expansion part supports against the bolt head; and the nut is screwed on the threaded section and supports against the outer end of the expansion part. The anchor bolt has the advantages of favorable anchoring efficacy, little component, simple structure as well as simple and convenient processing and manufacture.

The invention discloses a fixing device for an intelligent electric meter, which particularly relates to the field of intelligent electric meters. The fixing device comprises a mounting plate, the surface of the mounting plate is fixedly connected with four angular positioning plates, an electric meter box is clamped in the four angular positioning plates, and the top and the bottom of the electric meter box are each fixedly connected with two fixing plates which are distributed left and right; fixing boxes are fixedly connected to the top and the bottom of the surface of the mounting plate, sleeves are embedded in the two sides of each fixing box, L-shaped connecting rods are arranged in the sleeves in a sleeved mode, and inserting rods are fixedly connected to the surfaces of the L-shaped connecting rods. The two movable blocks are driven to get close to each other through rotation of a second threaded rod, so that the two fixing rods get close to each other, the two clamping plates can be driven to get close to each other, the two clamping plates get close to each other to clamp the electric meter body, the intelligent electric meter is fixed, and meanwhile, the intelligent electric meter is convenient to disassemble.

The invention discloses a sheep artificial insemination stabilizing frame. The sheep artificial insemination stabilizing frame is characterized in that a hanging frame is included, a leg clamping seat is arranged on the upper surface of the hanging frame, a plurality of rope clamps are arranged on the lower surface of the hanging frame, and a plurality of fixing rope holes are formed in the tail end of the hanging frame; fixing ropes are arranged in the fixing rope holes, and fixing ends are arranged on the fixing ropes. According to the sheep artificial insemination stabilizing frame, oestrous ewes can be conveniently and fast hung inversely and stabilized, and artificial insemination is convenient.

The invention discloses a horseshoe iron replacing equipment with a horseshoe cutin grinding function. The horseshoe iron replacing equipment comprises a shell, a working cavity is formed in the shell, a detaching mechanism is arranged in the working cavity, and the detaching mechanism comprises a chassis motor fixedly connected with the inner wall of the rear side of the working cavity; and a chassis motor shaft is rotationally arranged on the front end face of the chassis motor, a chassis is fixedly arranged on the chassis motor shaft, a gear ring is fixedly arranged on the left end face of the chassis, a grooved pulley box is fixedly arranged in the chassis, and a grooved pulley cavity with a leftward opening direction is formed in the grooved pulley box. By means of the horseshoe iron replacing equipment, horseshoes can be automatically ground, horseshoe iron can be replaced, a grooved wheel mechanism can control the position of a crowbar, the horseshoe iron can be pried from many positions and is disengaged more easily, a threaded transmission mechanism can comprehensively grind the horseshoe, the horseshoe iron can be installed stably, and a crank sliding block can automatically screw a screw into the horseshoe iron for fixing to achieve the effect of fixing the horseshoe iron.