100results about How to "Avoid fatigue" patented technology

This utility model relates to the field of surgical instrument technology, and in particular to a laparoscopic minimally invasive surgical forceps, comprising a long rod, one end of which is fixedly provided with a holding component, and the other end of which is provided with a clamping component connected to the holding component. A spreading component is sleeved on the outer wall of the long rod. The spreading component includes a sleeve sleeved on the long rod, one side of which is provided with a fixing ring fixed to the long rod. A second spring is sleeved on the outer wall of the sleeve, and one side of the second spring is connected to an operating ring sleeved on the sleeve. One end of the operating ring is hinged to the spreading rod through a hinge rod, and one end of the spreading rod is hinged to the outer wall of the sleeve. This laparoscopic minimally invasive surgical forceps, by setting up a spreading component, utilizes the elastic force of the second spring to spread the spreading rod outward, thereby spreading other organs in the surgical area to both sides to expose the position of the surgical area. This facilitates various surgical operations for the surgeon and avoids the problem of surgical difficulties caused by obstruction.

This utility model relates to the field of valve body technology, and in particular to an impact-resistant high-temperature and high-pressure valve body, comprising a valve body and an impact-resistant plate. The inner wall of the valve body has an inlet chamber and a drain chamber, which are connected. A limiting groove is formed in the inner wall of the inlet chamber, and the impact-resistant plate abuts against the limiting groove, with its outer peripheral wall in sliding contact with the inner wall of the limiting groove. Multiple flow holes are formed on the outer wall of the impact-resistant plate, with the diameter of the flow holes increasing from the middle to both ends. In this utility model, by setting up the impact-resistant plate, the impact force of the fluid is transferred from the inner wall of the valve body to the impact-resistant plate, avoiding direct impact on the valve body. The design of the flow holes with increasing diameter from the middle to both ends reduces the flow velocity and disperses the pressure when the fluid passes through, further reducing the impact of the fluid on the valve body, preventing fatigue, wear, and cracks in the valve body material, extending the service life of the valve body, and ensuring safe operation of the equipment.

The utility model provides a kind of analytical modeling method of model measuring point three-dimensional coordinates and Euler angle, the utility model is suspended under crossbeam by crane by scanning workpiece, solve the deformation problem of large thin-walled part different from its working posture due to the workpiece to be scanned by gravity, scanner is installed at the end of manipulator, realize all-around scanning to workpiece, according to the distance signal of scanner to control the scanning distance between scanner and workpiece to be scanned, solve the fatigue of operator long time handheld scanner, while can stably keep scanner and workpiece to be scanned directly optimal scanning distance, the utility model can satisfy the automatic scanning of different size sheet metal parts in whole vehicle reverse engineering, solve the deformation problem of large sheet metal part different from its working posture due to gravity when being placed on traditional scanning platform, while three-dimensional coordinates and Euler angle of measuring point in whole vehicle crash test and body-in-white modal test can be obtained quickly, improve scanning efficiency, shorten reverse engineering cycle etc.

The utility model discloses a kind of cover plate die structure of multi-step riveting, including upper die holder, upper backing plate, upper clamping plate, stop plate, stripper plate and lower die holder, outer guide sleeve, ball guide sleeve and outer guide column are provided between the upper die holder and lower die holder, the top surface of lower die holder is provided with lower bolster plate, the top surface of lower bolster plate is connected with lower backing plate by sliding assembly, riveting tray is provided on the lower backing plate, for supporting cover plate product, riveting punch of the bottom angle that this die is set from front to back by upper clamping plate is smaller and smaller, the distribution stamping of cover plate product is realized, rivet hole on cover plate product due to excessive stress and fatigue caused by one-time stamping is avoided, and then the stability of riveting is improved, and upper die holder is pressed every time, and cover plate product in different stamping stages can be simultaneously stamped, riveting efficiency is improved, structure is simple, efficient, suitable for popularization and application.

The utility model discloses a kind of pipe bender for automobile seat framework processing, relate to automobile engineering technical field.The utility model includes operation platform;The upper surface of operation platform is respectively fixed with conveying assembly and bending assembly;The conveying assembly includes two baffle one of symmetrical fixation, the adjacent side of two baffle one is respectively equipped with two inclined plate of symmetrical fixation on the upper surface of operation platform, rotatingly arranged between two inclined plate, the both ends of rotating shaft are all through inclined plate and are connected with baffle one.The utility model is cooperated between the specific components of conveying assembly and bending assembly, realizes automatic bending to pipe fitting, without artificial fetch one by one workpiece, then bending to pipe fitting is pressed again, pipe fitting is fetched after being pressed, simplify artificial operation process, avoid worker long time work to cause fatigue and then reduce enterprise processing efficiency.

The utility model provides a cap-connected neck protection pillow which comprises a neck pillow body and a cap body, and the cap body is connected with the neck pillow body. Wherein the cap body is provided with an eyeshade corresponding to the eyes of a user, the two ends of the eyeshade are connected with the cap body, and the lower edge of the eyeshade is provided with a structure conforming to the outline of the nose of the user. According to the neck protection pillow connected with the cap, the cap body can cover the head, the back face of the neck and the side face of the neck of a user, the neck can be prevented from being sunburnt by dazzling sunlight, the eyeshade can better conform to the face of the user, the eyes can be effectively shielded, the eyes are prevented from being stimulated by the sunlight, and through cooperation of the neck pillow, the cap body and the eyeshade, the user can feel more comfortable. When a user wears the hat, sun shading and sun blocking can be effectively achieved, the better shading effect is provided, the comfort requirement of the user in the journey is met, and the sleep quality is improved.

This utility model relates to a fully automatic assembly machine for connecting pipe fittings, including a support base plate. A turntable is rotatably connected to the support base plate, and multiple sets of assembly carriers are evenly distributed around the rotation center of the turntable. Correspondingly, the assembly carriers on the support base plate are arranged circumferentially with a welding ring feeding station, a copper pipe feeding station, and a combination stamping station. The welding ring feeding station is equipped with a welding ring feeding assembly for conveying welding rings one by one to the assembly carrier. The copper pipe feeding station is equipped with a copper pipe feeding assembly for transferring copper pipes and vertically inserting them into the assembly carrier. The combination stamping station is equipped with a combination assembly assembly for conveying an iron cover to the assembly position and inserting a copper pipe with a welding ring inserted into an opening in the side wall of the iron cover. This fully automatic assembly machine can automate the feeding, inspection, position correction, combination stamping, and unloading processes in the assembly process without human intervention, effectively reducing labor costs.

The invention relates to the technical field of sealed storage equipment, and discloses a manual vacuumizing sealed tank which comprises a tank body, a cover body and a connecting piece, the cover body is in sealed connection with the tank body through the connecting piece, the connecting piece is provided with a vacuum piece, a pressure relief piece, an indicating piece and a limiting piece, the vacuum piece is used for vacuumizing the interior of the tank body, and the pressure relief piece is used for relieving pressure in the tank body. The structure that the cover body driven by rotation is matched with the control ring and the vacuum piece is adopted, traditional pressing type vacuum pumping design is replaced, the piston block can be driven to reciprocate through gear transmission by rotating the cover body, the air pumping stroke is stable, operation is labor-saving, the vacuum pumping efficiency is greatly improved, hand fatigue caused by repeated pressing is avoided, and the vacuum pumping efficiency is improved. Meanwhile, the limiting piece and the one-way ratchet ring are matched to achieve one-way rotation of the cover body, and the multiple sealing design of the one-way piece, the piston silica gel ring and the sealing gasket is matched, so that gas backflow is effectively prevented, the stable and reliable vacuum state in the tank is ensured, oxidative deterioration of stored objects can be better inhibited, and the shelf life is prolonged.

The utility model relates to the field of elevator shaft construction, and specifically relates to a kind of elevator shaft folding telescopic inspection operation platform, including a group of stand and a group of respectively with its through bolt connection support, support top is placed with step, support top is provided with a group of limit piece;Limit piece includes the fixed rod that can vertically slide and can reset, fixed rod top is connected with the clamping block of bearing, when placing step butt joint limit piece, the connector of step bottom both ends is in abutment with clamping block and moves so that clamping block generates rotation, reduce the friction between two, when clamping block and the clamping groove cooperation on connector are completed and are clamped, realize the constraint to step position;The cooperation of limit piece and connector makes clamping block and clamping groove snap, to make step be locked after being placed, reduce installation time consumption, avoid step displacement to cause security risk, when the slope of clamping block and clamping groove is in abutment, under the action of bearing, clamping block can rotate, reduce the friction coefficient of clamping block and clamping groove side wall.

The utility model provides a high-pressure wear-resistant centrifugal steam turbine impeller, which relates to the technical field of steam turbine impellers, and comprises a connecting shaft, fan blades, a limiting piece, a mounting plate, a connecting shaft, a connecting shaft, a connecting shaft, a connecting shaft, a connecting shaft, a connecting shaft, a connecting shaft and a connecting shaft, and is characterized in that the limiting piece is arranged outside the fan blades and is used for connecting and limiting the fan blades; the fixing ring is fixedly arranged on the outer sides of the ends of the multiple fan blades, the mounting piece is arranged in the mounting plate, the limiting block is fixedly arranged on the inner side of the mounting plate, and the ends of the fan blades are fixed through the fixing ring and a multi-stage limiting structure of the connecting ring and the limiting plate. Compared with the prior art, the vibration trend of the fan blades under the action of wind power in operation can be effectively limited, it is ensured that the positions of the fan blades are relatively static, the vibration amplitude is greatly reduced, the phenomena of friction, collision frequency and stress concentration between the fan blades and peripheral components are remarkably reduced through vibration reduction, and material fatigue, abrasion and structure looseness caused by high-frequency vibration are avoided.

The utility model discloses a kind of flat lying car seat cushion assembly, including car seat cushion main body, the headrest one side rotationally connected with first damping pivot of car seat cushion main body, one end of the first damping pivot is fixedly connected with sleeve column, the inside of the sleeve column is slidably connected with inner sleeve column, the one side of the inner sleeve column is equipped with multiple clamping holes.The utility model, by setting L-shaped clamping plate, non-slip mat, push column and second spring etc., push column drives corresponding moving block to be far away, and corresponding second spring is compressed, so that moving block drives corresponding L-shaped clamping plate to move, then mobile phone is placed between two L-shaped clamping plates, then knob is loosened, under the elasticity of second spring, moving block drives corresponding L-shaped clamping plate to be close, so that the non-slip mat inside L-shaped clamping plate is clamped on the both sides of mobile phone, mobile phone is fixed, without the need for passengers to hold mobile phone with hand, avoid the arm fatigue of passenger due to lifting mobile phone, it is favorable to improve comfort.

The utility model relates to a cooling device in a biomass carbonization furnace, which comprises two distributive pipes, water pipes are arranged at the tail ends of the distributive pipes, a plurality of pipe bodies are arranged between the two distributive pipes, heat dissipation assemblies are arranged on the inner sides of the pipe bodies, the two ends of the pipe bodies are respectively in threaded connection with mounting nozzles, and the tail ends of the mounting nozzles are fixedly connected with second connecting pipes. A plurality of first connecting pipes are symmetrically installed at the close ends of the two water distribution pipes, connecting sleeves are connected between the first connecting pipes and the second connecting pipes in a threaded mode, the heat dissipation assembly comprises three heat dissipation fin plates with the head ends fixedly connected, the included angle between every two adjacent heat dissipation fin plates is 120 degrees, the tail ends of the heat dissipation fin plates are fixedly connected with arc-shaped pieces, and the arc-shaped pieces are fixedly connected with the heat dissipation fin plates. Mounting strips are fixedly connected to the outer sides of the arc-shaped pieces, mounting grooves are formed in the inner side of the pipe body, and the mounting strips are mounted in the mounting grooves. The fire grate has the effect of cooling the fire grate, material fatigue or ablation caused by overheating is avoided, and the fire grate can be conveniently disassembled, replaced and descaled.

The utility model discloses a lawn trimming height adjuster, which belongs to the technical field of lawn trimming and comprises a mounting frame, telescopic rods are fixedly connected to two ends of one side of the mounting frame, a first electric push rod is fixedly connected to the middle of the side of the mounting frame, and a first connecting rod is fixedly connected to one ends, away from the mounting frame, of the telescopic rods and the first electric push rod. A hollow frame is fixedly connected to the other end of the first connecting rod, and a rotating disc is rotationally connected into the end, away from the first connecting rod, of the hollow frame; according to the lawn trimming height adjuster, the rotating speeds of driving motors of the two sets of cutting discs are adjusted respectively, and the height between the main cutting disc and the auxiliary cutting disc is adjusted independently in cooperation with a second electric push rod, so that the load and temperature rise of the auxiliary cutting disc are far lower than those of the main cutting disc; the positions of the two sets of cutting discs are alternated through the alternation motor, high and low load tasks are alternately borne, and the original main cutting disc enters a low-load state after being switched into the auxiliary disc.

A cantilever learning desk with coordinated lighting comprises a desk board, a desk leg and a multifunctional support device fixed to the rear edge of the desk board. The device comprises a fixed base, a support arm connected to the base through a planar rotary pair to realize horizontal rotation, an adjusting arm connected to the support arm through a rotary pair to realize pitching swing, a device clamping device connected to the distal end of the adjusting arm through a spherical universal joint to realize multi-degree-of-freedom spatial posture adjustment, and a long strip-shaped lighting module on the lower surface of the adjusting arm. The device and the light source position are comprehensively coordinated and adjusted through multi-stage joints, and the desktop space is effectively saved.

The utility model relates to the technical field of resistors, in particular to an electronic equipment resistor suitable for a wide temperature range. The resistor comprises a resistor body, supporting assemblies are movably connected to the positions, close to the two ends, of the bottom of the resistor body, and protection assemblies are arranged between the outer wall of the resistor body and the two supporting assemblies. Through collaborative design of the protection assembly and the supporting assembly, the reliability problem of a traditional winding resistor in a wide-temperature and vibration environment is solved. The protection assembly adopts an alloy spiral ring to wind a resistor body, a gap is reserved to buffer thermal expansion and cold contraction, and material oxidation and resistance drift are inhibited; the spiral structure and the gap form an elastic buffer space, vibration energy is absorbed, and welding spot stress concentration is avoided. The supporting assembly is movably connected with the bottom of the body through an L-shaped honeycomb supporting plate, disperses vibration stress, adapts to size changes and is in flexible connection with the end in cooperation with fine adjustment of screws, and structural stability is guaranteed.

The utility model discloses a kind of electric push rod load life testing devices, comprising: rack;Fixed seat is located in the lower part of the rack, for fixing the electric push rod to be measured;At least two horizontal parallel arrangements of sliding load, sequentially arranged in the vertical direction above the electric push rod to be measured;The lowermost sliding load is connected with the output end of the electric push rod to be measured;Guiding mechanism, vertically arranged on the rack, for guiding the sliding load along vertical direction sliding;Barrier, located on the rack or guiding mechanism, for abutting below each layer of sliding load to maintain the spacing between layers;Wherein, the electric push rod to be measured pushes the lowermost sliding load to move up and sequentially triggers the sliding load linkage of adjacent upper layer, forms load stepwise increasing.The utility model has the advantages that: the stepwise increasing of load is realized, the dynamic scene of load layer-by-layer superposition in actual working condition can be simulated, and test result is closer to real application.

The utility model discloses an automatic taking and placing device for cone yarns, which belongs to the technical field of automation equipment in textile industry and comprises a workbench, a feeding assembly is arranged at the top of the workbench and comprises a placing plate, two groups of short plates are fixedly mounted at the top of the placing plate, and the two groups of short plates are fixedly mounted on the top of the placing plate. Second electric push rods are fixedly installed on one sides of the two sets of short plates, long plates are fixedly installed at the output ends of the two sets of second electric push rods, it can be ensured that the cone yarn is in a stable state before being operated, and it is avoided that in the taking and placing process, due to shaking or displacement of the cone yarn, taking and placing fails or the cone yarn is damaged; precise clamping and taking and placing of cone yarn rollers with different diameters are achieved, the whole taking and placing process is automatically controlled through driving components such as an air cylinder, an electric push rod and a motor, manual intervention is not needed, the taken-down cone yarn rollers are collected, manual carrying is avoided, the physical burden of workers is relieved, and the working efficiency is improved. And fatigue and body injury of workers are avoided.

The utility model discloses an electronic equipment support, including main part, elevating system, cooperation mechanism and auxiliary assembly, elevating system includes first support leg and second support leg, cooperation mechanism includes rotator and receiving piece, the auxiliary assembly includes baffle and second clamping block, under the mutual cooperation of above mechanism, this device allows user to adjust the angle of support according to own demand, for example can find the most comfortable visual angle when watching video, working or reading, avoid the neck fatigue caused by long -time stoop or lift the head, in addition, after this device fixed angle, the desktop main part position of support can firmly keep in the angle, prevent the equipment from the change angle or position because of external force (such as slight vibration, impact etc.

This invention discloses a dry film-forming multi-roll calender for high-precision film thickness control, comprising a pair of guide rails, N roller assemblies movably disposed between the pair of guide rails, a roller rotation drive device for driving the rollers of the roller assemblies to rotate, an online roller gap adjustment device for realizing online real-time adjustment of the roller gap between adjacent roller assemblies, and a roller assembly dynamic clamping and fixing device for realizing adaptive dynamic clamping and fixing of the roller assemblies according to the adjustment of the roller gap. Each roller assembly includes a pair of bearing seats movably disposed on the pair of guide rails and a roller rotatably disposed between the pair of bearing seats. The online roller gap adjustment device includes a wedge block vertically disposed between adjacent bearing seats, and a planar rolling bearing row is disposed between the bearing seats and the wedge block. The wedge block is driven up and down by a servo electric push rod. This invention achieves online high-precision and high-stability control of the thickness of electrode films and solid electrolyte films.

The invention discloses Ti-based alloy powder, which is prepared from the nominal components in percentage by atom: (5 to 10) of Ti, (2 to 5) of Al, (1 to 3) of V, (0.5 to 2.0) of Y2O3 and the balance of Ti and inevitable impurities, the preparation method comprises the following steps: 1, weighing raw material powder; 2, charging and sealing; 3, ball milling; and 4, discharging to obtain Ti-based alloy powder. According to the Ti-based alloy powder disclosed by the invention, high-volume nano Y2O3 is introduced and uniformly dispersed in a Ti matrix to form a dispersion strengthening phase, so that the room-temperature and high-temperature strength, creep resistance and thermal stability of the alloy are improved; according to the mechanical alloying process, the ball-to-material ratio, the rotating speed and the time of ball milling are strictly controlled, intermittent ball milling and external cooling are adopted to control temperature rise and pollution, it is guaranteed that Y2O3 forms nanocrystalline and a dispersion strengthening phase in a Ti matrix, the strength, hardness and thermal stability of the alloy are improved, the process is controllable, and repeatability is good.

The utility model discloses a headphone with a reflection sound cone, which comprises a headband and earmuff assemblies connected to two ends of the headband, each earmuff assembly comprises an earphone main body and a sounding unit, each sounding unit comprises a loudspeaker front cavity support, a woofer, a PCBA mainboard and a loudspeaker rear cavity support, the woofer is arranged between the loudspeaker front cavity support and the loudspeaker rear cavity support, and the reflection sound cone is arranged between the loudspeaker front cavity support and the loudspeaker rear cavity support. The PCBA main board is arranged on the loudspeaker rear cavity support, a reflection sound cone is arranged in the center of the inner side of the loudspeaker front cavity support, the reflection sound cone and the woofer are coaxially arranged, and the reflection sound cone extends and protrudes towards the direction of the woofer. According to the headphone with the reflection sound cone provided by the utility model, sound waves emitted from the woofer are radiated by 360 degrees in all directions through the reflection sound cone, so that the sound waves entering the auditory meatus are diffused from the center to the periphery, the direct impact of the sound waves on eardrums is reduced, and a user can listen to sound more softly.

The invention discloses a dynamic stable shielding signal cable and a preparation method thereof. The cable comprises a conductor, an insulating layer wrapping the conductor and a multi-layer shielding structure wrapping the insulating layer. The multi-layer shielding structure comprises an inner shielding layer and a composite shielding layer; the composite shielding layer is a multi-layer composite belt and comprises a metal conductive layer and at least two polymer bonding layers; a melt blending interface is arranged between the inner shielding layer and the composite shielding layer, and the melt blending interface is formed by combining the polymer bonding layer located in the inner side area with the back face of the inner shielding layer in a molten state and solidifying the polymer bonding layer and the back face of the inner shielding layer. According to the invention, the multiple shielding layers form an integrated structure with cooperative deformation, so that the shielding effectiveness maintaining capability of the cable under a dynamic bending working condition is remarkably improved.

The utility model relates to the technical field of shoes and garments, in particular to a special-shaped anti-torsion sheet and a sports shoe with the anti-torsion sheet, which comprises an anti-torsion sheet body, a stable structure is integrally formed at the central position of the anti-torsion sheet body, and an upper wrapping support sheet is integrally formed on one side of the anti-torsion sheet body corresponding to the arch of a human body.

The utility model provides a terminal, a female connector and an electric connection device. The terminal is used for being respectively connected with a fixed seat and a floating seat, and comprises a welding part, a first fixed part, a floating part, a second fixed part, an inflection elastic arm and a contact part which are connected in sequence, the first fixing part is used for being fixedly held on a fixing seat; the second fixing part is used for being fixedly held on the floating seat; the distance between the inflection elastic arm and the welding face of the welding part is smaller than the distance between the second fixing part and the welding face. The second fixing part is fixedly held on the floating seat, the contact part is pressed to drive the inflection elastic arm to deform after the female connector and the male connector are inserted and matched, and the distance between the inflection elastic arm and the welding surface of the welding part is smaller than the distance between the second fixing part and the welding surface, so that the length of the inflection elastic arm is prolonged, and especially for a floating connector with a relatively compact space, the service life of the floating connector is prolonged. Therefore, the elastic force arm is prevented from being fatigue due to compression after the female connector and the male connector are inserted and matched with each other, and the matching contact reliability of the electric connector device is further improved.

The utility model relates to the technical field of toothbrushes, and discloses a toothbrush with an angle-adjustable brush head, which comprises a brush handle, one side of the brush handle is provided with a connector, the bottom of the inner wall of the connector is provided with a round hole, the round hole extends to the bottom of the connector, the top of the connector is provided with a polygonal hole, and the polygonal hole is positioned right above the round hole. A brush head is arranged at the top of the connector, a rotary table is fixedly connected to the middle of the outer wall of one side of the brush head, a round head is fixedly connected to the outer wall of the side, away from the brush head, of the rotary table, and multiple sets of rectangular bristles distributed at equal intervals are arranged on the outer wall of the side, away from the rotary table, of the brush head. Micro-angle flexible adjustment of the brush head is achieved, the toothbrush can deeply clean complex areas of the oral cavity and effectively remove dental plaque, the ball seat at the bottom of the brush handle is matched with the suction cup, the toothbrush can be conveniently and stably placed, space is saved, bacterium breeding is reduced, and the device is novel in structure, practical in function, capable of remarkably improving the oral cavity cleaning effect and use experience and more practical.

The utility model discloses a kind of handle press-fit equipment, it is related to handle installation technical field, including pedestal, positioning block, lifting driving part and ejector device. Positioning block is located on pedestal, positioning groove is equipped on positioning block, positioning groove is used for the handle to be put into;Lifting driving part is located on pedestal, the output end of lifting driving part is equipped with pressing block, multiple avoiding holes are opened in pressing block, multiple avoiding holes are respectively used for the multiple fasteners on handle to extend into, lifting driving part can drive pressing block to descend, to make pressing block press mounting plate downwards, and make mounting plate buckle and be installed on handle;Ejector device is located on pedestal, and ejector device is used to lift the handle in positioning groove, to make the upper end of handle extend from positioning groove. The handle press-fit equipment replaces the step that worker presses mounting plate, avoids the hand of worker to produce fatigue and injury due to long time repeatedly pressing mounting plate, so as to be favorable to reduce the labor intensity of worker hand.

This utility model relates to the field of electronic detonator testing technology, specifically an electronic detonator shell quality inspection and screening device. The device includes a shell assembly and a mounting base. The improved quality inspection and screening device, through the cooperation of an electric push rod, a telescopic rod, and a clamping mechanism, enables rapid clamping and placement of electronic detonator shells within a box during use. This significantly improves the efficiency of loading and unloading electronic detonator shells, avoiding fatigue caused by frequent manual handling and reducing labor intensity. Furthermore, the device utilizes a motor, connecting shaft, and fixing plate to rotate and adjust the orientation of the electronic detonator shells during use, preventing inconsistent orientations on the conveying mechanism and greatly enhancing the convenience of use.

The invention relates to the technical field of automobile pedal testing, and discloses an intelligent networked automobile pedal testing device which comprises a shell and a base, the base is arranged at the bottom of the shell, a fixing support is fixedly connected to the surface of the shell, a groove is formed in the top of the fixing support, and a supporting rod is fixedly connected to the groove in the top of the fixing support. A pedal plate is fixedly connected to the bottom end of the supporting rod, and a sensor is fixedly connected to the upper surface of the pedal plate, so that the problem that a test result is lack of objectivity due to the influence of subjective consciousness and individual differences of testers during manual testing is avoided, and the problems of fatigue, inattention and the like in the testing process are solved; according to the invention, the test result is not accurate due to the fact that the test device needs to be manually treaded for testing, manual operation and errors are reduced, the labor cost and risks are reduced, pressure can be flexibly adjusted for testing, real use conditions can be stably simulated, and the accuracy and reliability of the test result are ensured.

The application provides a wind power tower connecting structure and relates to the technical field of wind power generation. The connecting mechanism comprises an upper connecting mechanism and a lower connecting mechanism. The upper connecting mechanism comprises an upper connecting inner cylinder, and the lower connecting mechanism comprises a lower connecting inner cylinder. The upper connecting inner cylinder is sleeved at the inner upper end position of the lower connecting inner cylinder. A lower top ring is fixedly arranged at the upper end of the lower connecting inner cylinder. A plurality of lifting mechanisms are hingedly arranged on the surface of the lower top ring at equal intervals. Each of the plurality of lifting mechanisms comprises a lever. A supporting plate and a triangular pressing plate are fixedly arranged at the upper end and the lower end of the lever, respectively. A plurality of movable holes are formed in the surface of the lower top ring at equal intervals. The relative soft connection greatly reduces the influence of tower shaking on the connecting position and avoids metal fatigue damage of the tower connecting position caused by repeated shearing force and tension.

This application provides a drawstring threading device and its method for use in the field of tote bag manufacturing technology. It includes a worktable, a bag-supporting assembly, and a drawstring threading assembly. The bag-supporting assembly is disposed on the worktable and has a receiving groove with an opening at the top. The bag-supporting assembly can open the bag body and align the mounting hole with the receiving groove. The drawstring threading assembly includes a drawstring storage unit, a drawstring clamping unit, and a driving component. The drawstring storage unit can store the drawstring and has a drawstring outlet on its side near the receiving groove. One end of the drawstring extends out of the drawstring storage unit through the drawstring outlet. The driving component can drive the drawstring clamping unit to move back and forth between the drawstring outlet and the receiving groove. When the drawstring clamping unit is close to the receiving groove, it can clamp and pull the drawstring. When the drawstring clamping unit is in contact with the bag body on the bag-supporting assembly, the drawstring on the clamping unit can pass through the mounting hole and be inserted into the receiving groove. When the drawstring clamping unit is away from the receiving groove, the drawstring can be released. This application enables automatic drawstring threading of tote bags.