30results about How to "Uniform weight" patented technology

The invention relates to the technical field of TPE particle processing, and discloses automatic material taking and transferring equipment for TPE particle processing, which comprises a mechanical claw, the outer wall of the mechanical claw is rotatably connected with a rotating frame, the bottom of the rotating frame is fixedly connected with a fixed plate, the bottom of the fixed plate is provided with a shaking mechanism, and the bottom of the shaking mechanism is rotatably connected with a top plate. A stable grabbing assembly used for stably grabbing bagged TPE particles is arranged in the top plate, and a discharging assembly used for conducting side face cutting and discharging on the bagged TPE particles is arranged in the top plate. The multiple grabbing insertion rods are inserted into the bagged TPE particles through the sharp ends after rotating by 90 degrees, the weight of the bagged TPE particles can be more evenly shared, shaking and falling of the particles in the material taking process are reduced, and therefore the material taking stability is improved, the pressure on packaging bags is dispersed through the two-side insertion mode, and the packaging efficiency is improved. The risk that the packaging bag is broken or torn is reduced, and material leakage and waste can be reduced.

This application discloses an automatic sauerkraut filling machine in the field of food packaging technology, including a base, a support column, a top seat, and multiple filling components. The support column is connected between the base and the top seat. The base has a notch, and a packaging machine is connected to the notch. The packaging opening of the packaging machine is located at the notch, and a packaging bag is connected to the packaging opening. A motor is located at the bottom inner part of the base, and the output shaft of the motor is connected to the support column. A turntable is connected to the top of the base and is connected to the support column. Multiple filling components are all located on the turntable. Multiple drive components are connected to the support column to drive the filling components from the turntable through the support column to the bottom of the top seat. Each filling component includes a slider, a connecting column, and an electric telescopic rod. The slider is connected to the turntable and is connected to the drive components. A locking component for fixing sauerkraut is connected to the slider. The connecting column is connected to the top of the slider, and the electric telescopic rod is connected to the top of the connecting column.

The utility model provides a Z-axis motion platform, and relates to the field of motion platforms. The motion platform comprises a base, a load plate, a voice coil motor and a first connecting plate, and a first mounting cavity is formed in the center of the load plate; the voice coil motor is mounted in the accommodating space of the base, the stator is fixedly connected with the bottom plate of the base, and the rotor is inserted into the first mounting cavity; the first connecting plate is fixedly connected with the top of the load plate and the top of the rotor, and the connecting position of at least one of the first connecting plate and the load plate is horizontally adjustable. According to the motion platform, the first mounting cavity of the load plate is arranged in the middle, so that the weight borne by the rotor of the voice coil motor in each direction is relatively balanced, and the motion precision of the load plate can be preliminarily ensured; the loading plate and the top of the mover are connected through the first connecting plate, disassembly and assembly are very convenient, the connecting position of the first connecting plate and the mover and / or the loading plate is horizontally adjustable, therefore, the parameters such as the coaxiality between the loading plate and the mover can be conveniently adjusted, and then the motion precision can be further improved.

The ear clip type earphone provided by the utility model comprises an earphone plug, an earphone support, a battery, a circuit board, a loudspeaker and a connecting piece, the earphone plug and the earphone support are connected through the connecting piece, so that an accommodating space matched with an ear of a human body is formed between the earphone plug and the earphone support, a first cavity is arranged in the earphone plug, and a second cavity is arranged in the first cavity. The earphone support is provided with a first cavity, the loudspeaker is arranged in the first cavity, the earphone support is provided with a second cavity, the connecting piece is provided with a third cavity, the circuit board is arranged in one of the second cavity and the third cavity, and the battery is arranged in the other one of the second cavity and the third cavity. According to the earphone, the circuit board is electrically connected with the battery and the loudspeaker, and the loudspeaker, the battery and the circuit board are arranged in different spaces, so that the close contact of the elements is avoided, the interference among the elements is reduced, the working stability and reliability of the earphone are ensured, the size of the earphone is reduced, and the use experience of a user is improved.

The invention discloses a tool for installing a shaft sleeve on a large shaft, and belongs to the technical field of mechanical assembly, and the key points of the technical scheme are that the tool comprises a base, the base comprises a bottom plate and a supporting frame, the supporting frame is connected with the bottom plate, and the supporting frame is used for placing the shaft sleeve; the limiting plate is connected with the supporting frame and used for limiting the shaft sleeve; the positioning device comprises a plurality of positioning rods and a plurality of sleeves installed on a large shaft, the positioning rods are vertically arranged, all the positioning rods are connected with the bottom plate and distributed around the supporting frame, the positioning rods penetrate through the sleeves, and the inner diameter of each sleeve is matched with the outer diameter of the corresponding positioning rod; and the multiple bearing blocks are connected with the bottom plate, distributed around the supporting frame and used for bearing the large shaft, and the effects that the precision and efficiency of installing the shaft sleeve on the large shaft are improved, and the manual operation intensity is reduced are achieved.

The automatic bagging mechanism for cement self-leveling mortar production comprises a working machine base, a sliding groove is formed in the working machine base, a reciprocating lead screw is rotationally connected in the sliding groove, the surface of the reciprocating lead screw is in threaded connection with a movable block, the upper end face of the movable block is fixedly connected with a base, and the base is fixedly connected with a base. Two fixing plates are fixedly connected to the upper end face of the base, suction cups are fixedly installed on the opposite sides of the two fixing plates, fixing blocks are fixedly connected to the upper end faces of the two fixing plates, and clamping blocks are rotationally connected into the fixing blocks. According to the full-automatic cement self-leveling mortar bagging machine, a packaging bag can be fully automatically opened and arranged on a base in a sleeving mode, full-automatic cement self-leveling mortar bagging work is carried out, the filling efficiency is high, manual handheld filling is not needed, the problem that filling in a traditional large packaging bag depends on manual operation is solved, the workload of workers is reduced, and the labor intensity is lowered.

The utility model discloses a numerical control machine tool spindle head box body anti-seismic structure which comprises a spindle box body, a spindle head installation pipe is arranged at one end of the spindle box body, an installation groove is formed in the spindle head installation pipe, a cavity is formed in the spindle box body, and an anti-seismic assembly used for increasing the rigidity of the spindle box body is arranged in the cavity. Box body ribs for reinforcing and supporting are arranged at the top end of the shaft head mounting pipe; by utilizing the design of the main shaft box body, the box body ribs and the anti-vibration assembly, the rigidity of the main shaft box body is enhanced and the weight of the main shaft box body is more balanced by additionally arranging the supporting inclined ribs and thickening the box body ribs in the cavity, so that when the main shaft head with the single-layer hollow structure is mounted on the shaft head mounting pipe, the vibration of the main shaft head is reduced, and the service life of the main shaft head is prolonged. While high-speed machining of the single-layer hollow structure spindle head is kept, rigidity and stability of rough and heavy cutting of the spindle head can be improved through connection of the spindle box body and the spindle head.

The utility model relates to the technical field of nursing materials, and discloses a mask. The mask comprises a mask body which is provided with a plurality of light-emitting structures capable of emitting visible light; the wearing device is connected with the mask body, and the wearing device is used for wearing the mask body to the face of a user; the control device is arranged on the mask body or the wearing device, and the control device is in communication connection with the light-emitting structure and used for adjusting the light-emitting mode of the light-emitting structure. The control device used for adjusting the light-emitting mode of the light-emitting structure is directly arranged on the mask body or the wearing device, wired connection between the control device such as a manual operator and the mask is omitted, the part structure and the matching mode of the mask are simplified, a user can conveniently obtain better use experience when using the mask, and the user experience is improved. Therefore, the problems that a current beauty mask is inconvenient to use and poor in use experience due to the fact that the beauty mask is operated and controlled through a manual operator are solved.

The utility model belongs to the technical field of medicine solid granule packaging, and particularly relates to a medicine solid granule packaging machine which comprises a packaging machine body and further comprises a fixing shell, the fixing shell is fixedly installed on the top of the packaging machine body, a sliding plate is installed in the fixing shell in a sliding mode, and a material storage groove is formed in the sliding plate. A rotating plate is rotatably mounted at a discharge port of the sliding plate, an L-shaped plate is fixedly mounted in the fixed shell and located at the bottom of the rotating plate, a protective shell is fixedly mounted on the sliding plate, a sliding rod is slidably mounted in the protective shell, and one end of the sliding rod penetrates through one side of the inner wall of the protective shell and is in contact with the sliding plate; when the whole device is used, it is ensured that the gram weight of solid granules in each bag is more uniform during packaging, it is ensured that the feeding hopper can be sealed, external impurities, dust and sundries are prevented from entering the feeding hopper, and the subsequent production process or the product quality is prevented from being affected.

The utility model relates to the technical field of liquor filling, and discloses liquor filling equipment convenient to weigh, which comprises a filling machine and a weighing device. The filling machine, the machine body, the foot support, the filling assembly, the supporting plate and other structural components are arranged, a wine bottle can be filled with wine through the filling machine, the weight of the wine bottle can be weighed and displayed through the weighing device, and the wine bottle can be clamped and fixed or taken out through matched use of the clamping assembly and the transmission assembly; through cooperative use of two positioning assemblies and a plurality of inserting grooves, a supporting plate can be fixed after moving upwards or downwards, so that wine bottles with different heights can be supported, and the effects that the wine bottles can be weighed, it is ensured that the weight of each wine bottle is uniform, the wine bottles can be rapidly clamped and fixed, and the wine bottles are prevented from shaking are achieved; the problems that a wine bottle cannot be rapidly weighed, and the wine bottle cannot be rapidly clamped and fixed are solved.

The present invention relates to the technical field of medical equipment, and specifically discloses a birthing ball stand, comprising an upper positioning ring, a lower positioning ring and a backrest; the upper positioning ring and the lower positioning ring are arranged up and down and connected by a support, and the backrest is connected to the rear side walls of the upper positioning ring and the lower positioning ring; the diameters of the upper positioning ring and the lower positioning ring are larger than the diameter of the birthing ball, armrests are respectively arranged on the left and right sides of the upper positioning ring, and a table top is arranged in front of the upper positioning ring; by arranging the upper positioning ring and the lower positioning ring as mentioned above, it is ensured that the birthing ball has a certain activity space, so that the pregnant woman can rock her body back and forth following the ball, and at the same time, it is ensured that the pregnant woman's feet and calves have enough placement space; by arranging the armrests on both sides, the backrest at the rear and the table top at the front, the weight of the birthing ball stand in the front, back, left and right directions is basically consistent, and the weight tends to be balanced, thereby ensuring the safety of the pregnant woman in the process of using the birthing ball.

The utility model discloses a chemical fiber friction material production device in the field of chemical fiber friction materials, which comprises a transversely arranged double-screw extruder, a feeding port is arranged on the upper side of the double-screw extruder, a discharging port is arranged at the rear end of the double-screw extruder, a belt conveyor is arranged corresponding to the discharging port of the double-screw extruder, and a belt is arranged on the belt conveyor. The belt conveyor is obliquely arranged, a hopper is arranged corresponding to the discharging end of the belt conveyor, a ton bag is arranged below the hopper, the ton bag is arranged on a placing seat, the placing seat comprises a rectangular base plate, side baffles are vertically arranged on the left side and the right side of the upper surface of the base plate, the side baffles are transversely arranged, and a front baffle is vertically arranged on the front side of the upper surface of the base plate. The front baffle is longitudinally arranged, and the placing base is arranged on the weighing platform. The floor area of friction material production equipment can be reduced, the production process is simplified and more environment-friendly, and products are more convenient to weigh and pack during shipment.

The invention relates to the technical field of nursing materials, and discloses a mask. The mask comprises a mask body which is provided with a plurality of light-emitting structures capable of emitting visible light; the wearing device is connected with the mask body, and the wearing device is used for wearing the mask body to the face of a user; the control device is arranged on the mask body or the wearing device, and the control device is in communication connection with the light-emitting structure and used for adjusting the light-emitting mode of the light-emitting structure. The control device used for adjusting the light-emitting mode of the light-emitting structure is directly arranged on the mask body or the wearing device, wired connection between the control device such as a manual operator and the mask is omitted, the part structure and the matching mode of the mask are simplified, a user can conveniently obtain better use experience when using the mask, and the user experience is improved. Therefore, the problems that a current beauty mask is inconvenient to use and poor in use experience due to the fact that the beauty mask is operated and controlled through a manual operator are solved.

The present invention provides a meatball making device, comprising a feed piece and a support piece that are detachably connected from top to bottom, wherein a feeding piece is provided inside the feed piece, and a meatball former is rotatably connected inside the support piece, wherein the meatball former comprises two forming spherical surfaces that are arranged opposite to each other and can be relatively opened and closed, and a plurality of saw teeth for cutting meatball fillings are arranged at intervals at the edges of the forming spherical surfaces, and the two forming spherical surfaces cooperate to form an arc-shaped panel that can accommodate meatballs. The meatball making device of the present invention can realize step-by-step control of meatball filling conveying and meatball forming, the weight of the meatballs produced can be controlled, the meatballs are in a uniform spherical shape, and the entire device can be quickly disassembled and fully cleaned, thereby improving the food safety of the device.

The utility model relates to the field of tricholoma matsutake production and processing, and discloses a tricholoma matsutake slicing and subpackaging device which comprises a bottom plate, a plurality of supporting columns are fixedly connected to the rear side of the top end of the bottom plate, a storage box is fixedly connected to the top ends of the supporting columns, a discharging port is formed in the front end of the storage box, and a limiting shell is fixedly connected to the front side of the top end of the bottom plate. A feeding channel is arranged at the top end of the limiting shell, a second motor is fixedly connected to the left side of the front end of the limiting shell, two second rotating shafts are rotatably connected to the inner wall of the limiting shell, belt wheels are fixedly connected to the outer walls of the second rotating shafts, a protective shell is fixedly connected to the right end of the limiting shell, and a material guiding assembly is arranged at the front end of the storage box. A subpackaging assembly is arranged on the right side of the top end of the bottom plate. According to the tricholoma matsutake slicing device, through height limitation between the limiting shell and the two rotating shafts II, tricholoma matsutake entering the limiting shell through the feeding channel changes the orientation of the tricholoma matsutake, so that tricholoma matsutake slices have the same cross section all the time, and the tricholoma matsutake slices are basically the same in size.

The utility model belongs to a photovoltaic adhesive film forming device in the technical field of photovoltaic adhesive films. An auxiliary roller (3) and a printing roller (4) are arranged below the extrusion die (1), the adhesive film (2) comprises an upper surface layer (A1), a middle layer (B) and a lower surface layer (A2), a heater (5) is arranged on the rear side of the printing roller (4) and close to the lower surface layer (A2), a printing roller (6) is arranged on the rear portion of the heater (5), and a cooler (7) is arranged on the rear portion of the printing roller (6). The photovoltaic adhesive film forming device disclosed by the utility model is simple in structure, capable of reducing the thickness range of an ABA structural adhesive film layer, improving the width of rim charge, improving the stability of the manufacturing process, uniform in gram weight, reducing energy consumption and material consumption and improving slipping, thereby effectively improving the structural performance and the manufacturing process and improving the enterprise cost investment.

The invention relates to a size design method of a ring structure casting, which comprises height size reversible deformation design and radius size reversible deformation design, the height size reversible deformation design is to mark a plurality of first measurement points on the top surface and / or the bottom surface of the casting, and the first measurement points of each measurement surface are measured and analyzed, so that the size of the casting is determined. Obtaining a height dimension reversible deformation pasting amount formula; according to the radius size reversible deformation design, a plurality of second measuring points are marked on the inner surface and / or the outer surface of the casting, and the second measuring points of all angles are measured and analyzed to obtain a radius size reversible deformation sticking amount formula; and calculating a corresponding size pasting amount through a reversible deformation pasting amount formula, and carrying out reversible deformation design. According to the size design method of the ring structure casting, asymmetric design is carried out on the process sticking quantity of the two sides of the T-shaped structure, non-uniform design is carried out on the process sticking quantity of the inner diameter and the outer diameter, asymmetric and non-uniform shrinkage deformation of the casting is counteracted, and then the machining allowance is uniform after the casting is solidified and deformed.

The invention relates to the technical field of fruit weighing and canning, and particularly discloses a marching type combined weighing device and method suitable for fragile fruits, the marching type combined weighing device comprises a support, a first transmission device is arranged on the support, a plurality of rows of discharging devices are arranged on the first transmission device, and each discharging device comprises a plurality of discharging assemblies; a plurality of weighing assemblies are arranged on the bracket; a sending-out device is arranged on the support, and the sending-out direction of the sending-out device is perpendicular to the transmission direction of the first transmission device; a plurality of partition plates are arranged on the support, the extending direction of the partition plates is the same as the conveying direction of the discharging device, and a conveying channel is formed in the space between every two adjacent partition plates and circularly corresponds to each row of discharging devices. A plurality of rows of push-down mechanisms are arranged on the bracket; the push-down mechanism comprises a plurality of push-down assemblies; a plurality of bottle feeders are arranged on the bracket; a can conveying device is arranged on the support and located in the first transmission device. The container has the advantages of being low in labor intensity, free of potential sanitation hazards and uniform in containing weight.

The utility model belongs to the technical field of spinning die heads, and particularly relates to a spinning die head provided with multiple pumps, which comprises a die head body, a plurality of pumps, a plurality of pumps and a plurality of pumps, wherein the main channel is provided with a flow inlet; each branch channel is provided with at least one spinneret; according to the spinning die head with the multiple pumps, the metering pumps are moved to the side wall of the die head body, so that each branch channel is provided with the independent metering pump, the spinning amount of each branch channel can be regulated and controlled, and the gram weight uniformity of a cloth cover is guaranteed.

The utility model relates to a kind of hollow glass with new mould-proof, including main baffle, edge sealing adhesive layer, through cavity device, spin groove net bag, uniform holding frame and uniform force support, through cavity device is placed in the corner outside the main baffle with pipeline type welding connection form, spin groove net bag is placed in the main baffle and the through cavity device, uniform holding frame is with the way of cementing connection sleeve in the hollow glass outside, uniform force support is placed in the lower part of the uniform holding frame, the both sides of the uniform force support are provided with universal mount. The utility model is protected by uniform holding frame and placed in the hollow glass outside, uniform force support supports uniform holding frame and hollow glass by the universal mount, each piece of glass is supported, and the balance of bearing is very good, ensure that edge sealing adhesive layer of hollow glass is still not easy to damage under long time placement, effectively improve the service life of hollow glass;In addition, through cavity device and uniform holding frame facilitate on-site maintenance of hollow glass, and the operability of on-site maintenance is very good.

A swirl blade angle control device applied to a cylindrical burner, relating to a swirl blade angle control device; in order to solve the problem that the existing swirl blade control device is prone to sleeve deflection, and then stuck with the wind tube and cannot be operated; the present invention discloses a swirl blade angle control device applied to a cylindrical burner, comprising a wind tube, a drive ring, a drive assembly, a plurality of crank connecting rod assemblies and a plurality of blade shaft assemblies; the drive ring is sleeved on the wind tube and is rotatably connected to the wind tube, the plurality of blade shaft assemblies are circumferentially uniformly arranged on the side wall of the wind tube, the airflow guide end of the blade shaft assembly is in the wind tube, the drive end of the blade shaft assembly vertically passes through the side wall of the wind tube and is connected to one side of the drive ring through a group of crank connecting rod assemblies, and one end of the drive assembly is connected to the other side of the drive ring. The present invention is mainly used to adjust the angle of the swirl blade to ensure that the angle adjustment of all swirl blades is consistent.

The invention discloses an inflatable flexible dumbbell and a manufacturing method thereof. The inflatable flexible dumbbell comprises a first counterweight part, a second counterweight part and a hard holding part, the first counterweight part comprises a first elastic bag body with a first air cavity; the second counterweight part comprises a second elastic bag body with a second air cavity; the holding part comprises a hard tubular body which is provided with a third air cavity and is made of plastic; the hard tubular body, the first elastic bag body and the second elastic bag body are all made of plastic materials, and fillers are arranged in the first air cavity, the second air cavity and the third air cavity; the hard tubular body, the first elastic bag body and the second elastic bag body are all made of plastic materials, prepared through rotational molding distribution and separated through binding films. The elastic bag body and the gas contained in the elastic bag body avoid the risk that the dumbbell accidentally falls off to hurt people in the using process, the filler is arranged in the gas cavity of the holding part, and on the premise that the weight is equal, the size of the dumbbell is smaller.

The present invention provides an installation structure of an engine chain limit frame, which belongs to the field of engine technology. It solves the problem of poor installation stability of the existing limit frame. The engine includes a crankcase and a crankshaft arranged in the crankcase, and the installation structure includes bolts, elastic members and limit pins inserted in the crankcase. The limit frame is fixed in the crankcase by bolts, and the installation structure also includes one end of the elastic member pressing on the limit pin so that the limit pin is partially embedded in the crankshaft, and the other end of the elastic member abuts against the limit frame. The elastic member and the head of the bolt are respectively located on both sides of the limit frame, and the direction of the elastic force of the elastic member and the length direction of the bolt are both arranged along the axial direction of the crankshaft. The installation structure of the limit frame has the advantages of axially positioning the crankshaft while preventing the bolts from loosening.

The utility model discloses intelligent imaging glasses in the technical field of imaging equipment, and aims to solve the problems that in the prior art, when the intelligent imaging glasses are worn, only two glasses legs are used for playing a fixing role, the falling phenomenon easily occurs, and meanwhile, required modules of the glasses cannot be added according to actual use requirements. The glasses comprise a glasses frame, lenses are detachably connected to the outer wall of the glasses frame, glasses legs and mounting blocks are arranged on the two sides of the outer wall of the glasses frame respectively, fixing devices are detachably connected to the sides, away from the glasses frame, of the outer walls of the mounting blocks, the fixing devices comprise expansion earphones, and the expansion earphones comprise arc-shaped frames matched with human auricles; according to the utility model, the arc-shaped frame is clamped on the outer side of the auricle, and the relative positions of the whole glasses and a person are fixed, so that the glasses are prevented from falling off during movement; according to actual use requirements, required modules can be mounted on the arc-shaped frames, and the arc-shaped frames are mounted on the mounting blocks, so that the actually required modules are carried on the glasses.

The application provides a glass fiber mat high-speed laying control method, which comprises the following steps: 1) single net fiber enters a laying machine front curtain, and the entering speed is set as V0; 2) according to the distance requirement reached by the net, the laying distance is set as 2.5 m, that is, the laying trolley displacement is 2.5 m; 3) the upper trolley and the laying trolley acceleration are adjusted according to the entering speed, and the acceleration can be dynamically adjusted by the entering speed a=2.5V0 2 ; 4) when the upper trolley runs to the right, the running uniform speed of the upper trolley is-0.5V0; when the upper trolley runs to the left, the running uniform speed of the upper trolley is +0.75V0; 5) when the laying trolley runs to the right, the running uniform speed of the laying trolley is-1.25V0; when the laying trolley runs to the left, the running uniform speed of the laying trolley is +1.25V0; wherein the application further provides a glass fiber mat high-speed laying control system, which adopts the control method as described above.

The invention relates to a tap switch oil chamber oil flow velocity detection sensing system and a working method thereof. The system comprises a cable, a distributed optical fiber vibration sensing system and a plurality of spindle-shaped structural bodies. The plurality of fusiform structural bodies are tightly and sequentially nested outside the cable, and the distance between the adjacent structural bodies meets the requirement of one or more spatial resolutions; when the flow velocity equipment works, the distributed optical fiber vibration sensing system demodulates and analyzes the phase of transmission light in the optical fiber at each nesting point, and realizes real-time monitoring of the oil flow velocity according to the corresponding relationship between the phase change and the flow velocity. The oil flow state data of the oil chamber can be collected for a long time when the tap switch is switched, the collected data is high in objectivity, the real-time flow speed can be truly obtained, and real-time monitoring of the state of the tap switch is facilitated.

The present invention relates to a PP film composition and a preparation method and application thereof, wherein the components include polypropylene, a melt stabilizer and a binder. The PP film composition of the present invention has good adhesion and aging resistance, and the film is not prone to holes, and can maintain a uniform film output, so that the gram weight of the film is relatively uniform.

The invention relates to the field of sports test equipment, and discloses a portable detachable weight-bearing bow step test equipment, which comprises a slide rail, a moving plate is slidably arranged in the slide rail, one end of the slide rail is provided with a support assembly, and two corners of the other end of the slide rail are provided with connecting blocks. The connecting block is connected with the mounting base through a fourth fastening knob, the top of the mounting base is connected with a fixing block through a plurality of hinges, the fixing block is connected with a vertical plate through a plurality of second fastening knobs, the rear side of the vertical plate is connected with a handle through an angle adjusting mechanism, and a first clamping block is arranged on the outer side of the vertical plate. By means of connection of the sliding rails, the vertical plates and other components, disassembly and combination are convenient, movement is convenient due to the universal wheels, use is convenient, and mobility is high; secondly, the buckle connection is beneficial to disassembly, storage and maintenance; the height, the angle and the like can be adjusted through a sliding rod, a rotating block and the like to adapt to different conditions, test stability is guaranteed, and the training effect and the data accuracy are improved.