A wheelchair anti-impact performance detection system and detection method

Abstract

The present invention relates to the field of wheelchair performance detection, and particularly to a wheelchair impact resistance performance detection system and a detection method. The system includes a supporting plate, on which a mounting plate is fixedly arranged. A limiting mechanism is arranged on the mounting plate, and a U-shaped mounting frame is arranged at the rear end of the limiting mechanism. A first detection mechanism is arranged between the U-shaped mounting frame and the mounting plate, and a second detection mechanism is also arranged on the U-shaped mounting frame. The present invention is provided with a variety of detection methods, so that the wheelchair does not need to be repeatedly disassembled and assembled during the detection work, improving the efficiency of the wheelchair detection work, ensuring the coherence of the detection work and at the same time improving the efficiency of wheelchair detection. The present invention can adjust the rising height of the wheelchair according to the detection method of the wheelchair. The horizontal section lengths of the four L-shaped auxiliary plates are different, and the synchronous belt wheels are driven by a toothed belt to rotate, so that the four L-shaped auxiliary plates extend in a stepped shape to simulate the real falling and rolling environment of the wheelchair, thereby improving the persuasiveness of the wheelchair impact resistance performance detection result.

Description

Technical Field

[0001] The present invention relates to the field of wheelchair performance detection, and particularly relates to a wheelchair impact resistance performance detection system and a detection method. Background Art

[0002] A wheelchair is a device that provides mobility assistance for people with limited mobility. It can help those who are unable to walk independently due to illness, injury, or other physical limitations to move more freely. Therefore, wheelchairs are designed in various ways to meet the needs of different users.

[0003] Common wheelchairs usually consist of a support frame part, a drive part, and a seat cushion, etc. To ensure the safety of users, it is usually necessary to ensure that the wheelchair can withstand a certain external force impact during use without being damaged or deformed. Therefore, it is very necessary to detect the impact resistance performance of the wheelchair.

[0004] At present, the detection of the impact resistance performance of wheelchairs usually adopts two detection methods: static load testing and dynamic impact testing. The above two detection methods require different detection devices to simulate the impact resistance performance during the normal use of the wheelchair by using a bearing heavy object or simulating an impact.

[0005] Although the above two methods are relatively common detection methods in the prior art, there are still certain drawbacks. There will be a situation where the wheelchair falls from a height during use, and the existing detection methods still have limitations and cannot simulate the extreme situation where the wheelchair falls from a step or a step with a relatively large drop, resulting in certain limitations in the detection results. Summary of the Invention

[0006] In view of the above problems, the embodiments of the present application provide a wheelchair impact resistance performance detection system to solve the problems existing in the detection process of the wheelchair.

[0007] To achieve the above object, the embodiments of the present application provide the following technical solution: A wheelchair impact resistance performance detection system includes a supporting plate. A slope for assisting the wheelchair to slide is provided on the front side wall of the supporting plate in the front-back direction. An installation plate is fixedly provided on the upper end of the supporting plate in the vertical direction. A limiting mechanism for limiting the wheelchair is provided on the installation plate, and the wheelchair is placed on the upper end surface of the supporting plate through the limiting mechanism.

[0008] The limiting mechanism includes two supporting plates fixedly provided on the front side wall of the installation plate and distributed in the up-down direction. A clamping part for clamping and limiting the wheelchair is commonly provided between the two supporting plates. The rear end of the clamping part is provided with a U-shaped mounting frame with an opening facing forward and fixed on the upper end surface of the supporting plate.

[0009] A detection mechanism I for free-fall detection of the wheelchair is arranged between the U-shaped mounting bracket and the mounting plate. The detection mechanism I includes a driving part arranged inside the mounting plate and used to drive the wheelchair to move upward repeatedly, and an auxiliary part for assisting the wheelchair detection is arranged at the rear end of the driving part.

[0010] A strip-shaped bearing plate with a strip-shaped sliding groove opened on the lower end surface is fixedly arranged on the upper end surface of the U-shaped mounting bracket, and a detection mechanism II for pendulum impact test of the wheelchair is arranged inside the strip-shaped sliding groove.

[0011] Preferably, a sliding groove is opened on the front side wall of the mounting plate in the vertical direction, and two strip-shaped grooves penetrating through the mounting plate are opened on the rear side wall of the mounting plate. The width of the middle strip-shaped groove is wider than that of the left-side strip-shaped groove. The upper end of the left-side strip-shaped groove is open, and two limit grooves distributed in the vertical direction are opened on the inner walls on both the left and right sides. A plurality of strip-shaped through grooves extending in the left-right direction are opened on the inner wall of the sliding groove from top to bottom, and the plurality of strip-shaped through grooves are communicated with the middle strip-shaped groove. Adjusting plates are fixedly arranged on the upper right side of the rear side wall of the mounting plate in a vertically symmetrical manner. The two adjusting plates are respectively on the upper and lower sides of the uppermost strip-shaped through groove, and chamfers are arranged on the sides of the two adjusting plates away from each other.

[0012] Preferably, the auxiliary part includes an adjusting group arranged above the corresponding strip-shaped through groove. Each adjusting group includes a threaded rod II rotatably arranged on the rear side wall of the mounting plate and a sliding rod II fixedly arranged on the rear side wall of the mounting plate. An L-shaped auxiliary plate with its rear side wall fixedly connected to the inner wall of the U-shaped mounting bracket through a spring telescopic rod is arranged on the outer walls of the threaded rod II and the sliding rod II. The L-shaped auxiliary plate is in threaded connection with the threaded rod II, and a synchronous belt pulley is fixedly arranged on the rear side wall of the threaded rod II. A plurality of the synchronous belt pulleys are driven and connected through a toothed belt. The auxiliary part also includes a driving group for driving the L-shaped auxiliary plate to move synchronously.

[0013] Preferably, the driving group includes an adjusting gear rotatably arranged on the rear side wall of the mounting plate and fixedly connected to the uppermost threaded rod II. Two racks slide in the left-side strip-shaped groove in the vertical direction and on the right side of the adjusting gear. The length of the upper rack is longer than that of the lower rack. The left and right side walls of the upper rack are arranged in two lower limit grooves through spring telescopic blocks with chamfers opened at the upper and lower ends. The upper rack is always meshed with the adjusting gear. The connecting section of the lower rack is fixedly connected to the support disc. A T-shaped mating groove is opened on the lower end surface of the upper end rack. Chamfers are opened at the two corners of the vertical section of the T-shaped mating groove. An electromagnet is arranged at the upper end of the lower rack, and two T-shaped mating blocks with chamfers opened at the telescopic sections are fixedly arranged on the end surface of the lower rack corresponding to the T-shaped mating groove.

[0014] Preferably, sliding grooves are formed at the positions of the upper end faces of the two support plates close to the rear. A blocking plate extending in the left-right direction is fixedly arranged on the upper end face of the lower support plate. An electric push rod II is fixedly arranged on the upper end face of the lower support plate through a mounting table. The front end of the telescopic section of the electric push rod II is provided with an I-shaped frame connected to the wheelchair support frame.

[0015] Preferably, the clamping part includes four clamping groups, which are respectively arranged on the two support plates and are symmetric in the left-right direction. Each clamping group includes a scissor-type telescopic frame. The hinge point of the scissor-type telescopic frame close to the front end is rotatably connected to the upper end face of the corresponding support plate. A clamping block for clamping and limiting the wheelchair support frame is fixedly arranged at the front end of the scissor-type telescopic frame. Flexible telescopic clamping blocks are fixedly arranged on the side walls of the two clamping blocks close to each other. The clamping part further includes a C-shaped connecting frame. There are two C-shaped connecting frames, which are arranged between the two clamping groups on the corresponding support plates in an up-and-down distribution manner. The two vertical sections of the C-shaped connecting frame are respectively fixedly connected to the hinge points at the rear ends of the corresponding two scissor-type telescopic frames. The two C-shaped connecting frames are fixedly connected through a strip-shaped plate sliding inside the sliding groove. The rear end of the fixed section of the electric push rod II slidably penetrates through the strip-shaped plate. And an electric push rod I is fixedly connected to the front end face of the upper C-shaped connecting frame. The electric push rod I is fixedly arranged on the upper end face of the upper support plate through a mounting seat.

[0016] Preferably, the driving part includes a support disc slidably arranged inside the sliding groove. The support disc is fixedly connected to the lower rack. Two arc-shaped sliders II with arc sections being electromagnets are slidably arranged inside the sliding groove above the support disc. A threaded rod I and a sliding rod I extending in the vertical direction are arranged in the left-right direction inside the sliding groove. The threaded rod I and the sliding rod I respectively penetrate through the corresponding arc-shaped sliders II, and the threaded rod I is threadedly connected to the corresponding arc-shaped slider II. The support disc is divided into a connecting section with a larger diameter magnetically fixed to the arc-shaped slider II and a mounting section with a smaller diameter fixedly connected to the two support plates. The mounting section is rotatably arranged inside the connecting section through a bearing. A circular rod penetrating through the middle strip-shaped groove is fixedly arranged on the rear side wall of the connecting section of the support disc. An adjusting square plate is fixedly arranged on the outer wall of the circular rod.

[0017] Preferably, a first motor with an output shaft facing downwards and rotatably connected to the mounting plate is fixedly arranged on the lower end face of the strip-shaped bearing plate and directly above the mounting plate through a motor seat. A driving gear is fixed on the outer wall of the output shaft of the first motor. A driven gear that is always meshed with the driving gear is rotatably arranged on the lower end face of the strip-shaped bearing plate through a rotating shaft. A connecting column fixedly connected to the threaded rod I is fixedly connected to the lower end face of the driven gear.

[0018] Preferably, the second detection mechanism includes a sliding block slidably disposed inside the strip-shaped chute and having electromagnets at both left and right ends. The lower end surface of the sliding block is fixedly provided with a rectangular plate through a cylinder. Two mounting grooves are opened on the lower end surface of the rectangular plate. The two mounting grooves are symmetrically arranged left and right and a mounting post is rotatably disposed inside the mounting groove. The lower end of the mounting post is fixedly provided with a pendulum ball with a pull ring mounted on its end face through a rope.

[0019] In addition, the present invention also provides a method for detecting the impact resistance performance of a wheelchair, which is completed in cooperation with a wheelchair impact resistance performance detection system, and includes the following steps:

[0020] S1. During the pendulum detection, first push the wheelchair to the designated position and complete the clamping and limiting work on the wheelchair support frame through the flexible telescopic clamping block. Then push the sliding block to slide along the strip-shaped chute until the two pendulum balls are respectively located on the left and right sides of the wheelchair. Then turn on the electromagnets on both sides of the sliding block to make the sliding block electromagnetically fixed to the strip-shaped chute.

[0021] S2. Then, manually pull the pendulum ball through the pull ring to form a certain angle between the pendulum ball and the wheelchair. Finally, release the pull ring to make the pendulum ball impact the wheelchair from the side. After repeating this process, unload the wheelchair and manually observe the damaged condition of the wheelchair after the test to determine whether the wheelchair meets the impact detection requirements. That is, if the wheelchair shows minor deformation and bumps but does not affect normal use, the impact resistance performance detection of the wheelchair is qualified. On the contrary, if the wheelchair has large-area deformation, damage, etc. that affect normal use, it means that the impact resistance performance detection of the wheelchair is unqualified.

[0022] S3. After observing the damaged condition of the wheelchair, if the wheelchair can still be used normally, turn on the electromagnets on the arc-shaped sections of the two arc-shaped sliders to make the two arc-shaped sliders electromagnetically fixed to the support disc.

[0023] S4. After the support disc and the wheelchair are driven by the first threaded rod to rise to the designated position, cut off the power supply of the electromagnets on the two arc-shaped sliders. At this time, the support disc and the wheelchair fall freely along the sliding groove onto the support plate under the action of gravity. Finally, manually observe the damaged condition of the wheelchair after the fall to determine whether the wheelchair meets the impact detection requirements. That is, if the wheelchair shows paint peeling, minor deformation and bumps but does not affect normal use, the impact resistance performance detection of the wheelchair is qualified. On the contrary, if the wheelchair shows skewed support frame, large-area deformation and damage, etc. that affect normal use, it means that the impact resistance performance detection of the wheelchair is unqualified.

[0024] S5. When the free fall detection method is completed, the threaded rod 1 is controlled to reverse and drive the arc-shaped slider 2 to move downward to the upper end of the support disc, and the electromagnets on the two arc-shaped sliders 2 are continued to be turned on, so that the two arc-shaped sliders 2 are electromagnetically fixed to the support disc, and the damage of the wheelchair is observed. If it can still be used normally, the threaded rod 1 is controlled to rotate forward and drive the wheelchair to continue to move upward. After the two racks come into contact, they are electromagnetically attracted and the adjusting gear is engaged through the teeth to rotate. When the adjusting gear rotates, the toothed belt set on the threaded rod 2 is engaged, and the remaining threaded rods 2 and the synchronous pulley rotate.

[0025] S6. As the support disc gradually rises, it passes over the adjustment plate and moves the adjustment square plate, which in turn drives the wheelchair to rotate ninety degrees. At this time, the L-shaped auxiliary plate below is stepped after being extended. Then the electric push rod 1 is controlled to drive the I-shaped connecting frame and the scissors-type telescopic frame to move forward. At this time, the flexible telescopic clamp that limits the engagement of the wheelchair support frame is pulled and moved away synchronously. Then the telescopic section of the electric push rod 2 is controlled to extend and push the I-shaped frame and the wheelchair, gradually separating the wheelchair support frame from the flexible telescopic clamp. At this time, the wheelchair will roll along the stepped L-shaped auxiliary plate below and roll freely to the support plate below due to gravity.

[0026] S7. Finally, the damage to the wheelchair after rolling is manually observed to determine whether the wheelchair meets the impact test requirements. That is, if the important components of the wheelchair only have minor deformations and bumps, but do not affect normal use, the wheelchair passes the impact resistance test. On the contrary, if the important components of the wheelchair fall apart or have large-scale deformations, which affect normal use, it means that the wheelchair fails the impact resistance test.

[0027] Compared with the prior art, the embodiments of the present invention provide the following beneficial effects:

[0028] 1. The present invention is equipped with multiple detection methods, so that the wheelchair does not need to be repeatedly disassembled and assembled during the detection work, which improves the efficiency of the wheelchair detection work. At the same time, a single device can complete multiple wheelchair detection tasks, thereby ensuring the continuity of the detection work and further improving the efficiency of wheelchair detection.

[0029] 2. The present invention can adjust the height at which the threaded rod drives the support disc and the wheelchair to rise according to the wheelchair detection method, and adopts the free fall method to detect the wheelchair, ensuring the diversity of detection methods and detection heights. At the same time, the horizontal sections of the four L-shaped auxiliary plates are of different lengths. The toothed belt drives the synchronous pulley to rotate so that the four L-shaped auxiliary plates extend in a stepped shape to simulate the actual falling and rolling environment of the wheelchair, increase the comprehensiveness of the detection types, and thus improve the persuasiveness of the wheelchair impact resistance test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1It is a three-dimensional structure schematic diagram when the present invention detects a wheelchair.

[0031] Figure 2 It is a structure schematic diagram of the present invention.

[0032] Figure 3 It is a partial enlarged view of part A in the present invention.

[0033] Figure 4 It is a partial structure schematic diagram of the clamping part in the present invention.

[0034] Figure 5 It is a partial structure schematic diagram of the auxiliary part in the present invention.

[0035] Figure 6 It is a schematic diagram of the positional relationship between the mounting plate and the support disc in the present invention.

[0036] Figure 7 It is the first position schematic diagram of the internal structure of the U-shaped mounting bracket in the present invention.

[0037] Figure 8 It is the second position schematic diagram of the internal structure of the U-shaped mounting bracket in the present invention.

[0038] Figure 9 It is a bottom view of a partial structure of the detection mechanism II of the present invention.

[0039] Figure 10 It is a schematic diagram of the positional relationship between the arc-shaped slider II and the first threaded rod and the first sliding rod in the present invention.

[0040] Figure 11 It is a schematic diagram of the state change of two racks from separation to connection in the present invention.

[0041] Figure 12 It is a three-dimensional structure schematic diagram of the wheelchair to be detected in the present invention.

[0042] Reference numerals in the drawings: 1, supporting plate; 2, mounting plate; 21, sliding groove; 211, strip-shaped through groove; 22, strip-shaped groove; 221, limiting groove; 23, adjusting plate; 3, limiting mechanism; 31, supporting plate; 311, sliding groove; 312, blocking plate; 313, electric push rod II; 32, clamping part; 321, scissor-type telescopic frame; 322, clamping block; 323, flexible telescopic clamping block; 324, C-shaped connecting frame; 325, strip-shaped plate; 326, electric push rod I; 4, C-shaped mounting frame; 41, strip-shaped bearing plate; 411, strip-shaped sliding groove; 412, first motor; 413, driving gear; 414, driven gear; 5, first detection mechanism; 51, driving part; 511, supporting disc; 512, arc-shaped slider II; 513, first threaded rod; 514, first slide bar; 515, adjusting square plate; 52, auxiliary part; 521, second threaded rod; 522, second slide bar; 523, L-shaped auxiliary plate; 524, synchronous pulley; 525, toothed belt; 526, driving group; 5261, adjusting gear; 5262, rack; 52621, T-shaped mating block; 6, second detection mechanism; 61, sliding block; 62, rectangular plate; 621, mounting groove; 622, mounting post; 623, pendulum ball; 7, wheelchair. Detailed implementation mode

[0043] The following is further detailed description of the present application in conjunction with the attached Figure 1-10 drawings.

[0044] Please refer to Figure 1 and Figure 10 A wheelchair impact resistance detection system includes a supporting plate 1. A slope (not shown in the drawings) for assisting the sliding of the wheelchair 7 is provided on the front side wall of the supporting plate 1 in the front-rear direction. An installation plate 2 is fixedly arranged on the upper end of the supporting plate 1 in the vertical direction. A limiting mechanism 3 for limiting the wheelchair 7 is arranged on the installation plate 2. The wheelchair 7 is placed on the upper end surface of the supporting plate 1 through the limiting mechanism 3.

[0045] Please refer to Figure 1 and Figure 2 The limiting mechanism 3 includes two supporting plates 31 fixedly arranged on the front side wall of the installation plate 2 and distributed in the up-down direction. A clamping part 32 for clamping and limiting the wheelchair 7 is jointly arranged between the two supporting plates 31. The rear end of the clamping part 32 is provided with a C-shaped mounting frame 4 with an opening facing forward and fixed on the upper end surface of the supporting plate 1.

[0046] Please refer to Figure 3 and Figure 5, a first detection mechanism 5 for free-fall detection of the wheelchair 7 is provided between the C-shaped mounting bracket 4 and the mounting plate 2. The first detection mechanism 5 includes a driving part 51 arranged inside the mounting plate 2 and used to drive the wheelchair 7 to move upward repeatedly, and an auxiliary part 52 for assisting in the detection of the wheelchair 7 is arranged at the rear end of the driving part 51.

[0047] Please refer to Figure 1 , Figure 7 and Figure 9 , a strip-shaped bearing plate 41 with a strip-shaped sliding groove 411 opened on the lower end surface is fixedly arranged on the upper end surface of the C-shaped mounting bracket 4, and a second detection mechanism 6 for pendulum impact testing of the wheelchair 7 is arranged inside the strip-shaped sliding groove 411.

[0048] During specific operation, first, the wheelchair 7 is manually pushed along the slope of the supporting plate 1 to the front end of the mounting plate 2, and then the clamping part 32 is controlled to complete the clamping work on the support frame of the wheelchair 7 to ensure that the wheelchair 7 does not shift during the detection work. Then, the second detection mechanism 6 is controlled to perform several groups of pendulum impact tests on the wheelchair 7 first, and the damaged condition of the wheelchair 7 is observed to judge whether it meets the detection requirements.

[0049] After the pendulum impact detection is completed, the driving part 51 is controlled to drive the wheelchair 7 to move upward to a specified height, and then the wheelchair 7 is freely dropped from a high place to simulate the impact performance of the wheelchair 7 when it falls from a high place during use. By observing the damaged condition of the wheelchair 7, the impact resistance of the wheelchair 7 when it falls is judged.

[0050] Finally, the wheelchair 7 can be further tested for impact resistance. The driving part 51 drives the wheelchair 7 to move upward to the highest position. Through the cooperation of the driving part 51 and the auxiliary part 52, an actual application scenario, such as the environment of a staircase, is simulated. Then the wheelchair 7 is pushed down to roll down along the set steps. By observing the damaged condition of the wheelchair 7 after rolling, the impact resistance of the wheelchair 7 in the staircase environment is judged.

[0051] It should be noted that the pendulum detection work on the wheelchair 7 is to simulate the impact resistance of the wheelchair 7 when it is laterally impacted during actual use. The free-fall detection work on the wheelchair 7 is to simulate the impact resistance of the wheelchair 7 when it falls from a step with a large height difference during actual use. The rolling detection work on the wheelchair 7 is to simulate the impact resistance of the wheelchair 7 when it rolls down along a stepped staircase and is collided in different directions and angles in an actual use scenario.

[0052] Please refer to Figure 3 , Figure 4 and Figure 12, sliding grooves 311 are formed at the positions of the upper end faces of the two support plates 31 close to the rear. A blocking plate 312 extending in the left-right direction is fixedly arranged on the upper end face of the lower support plate 31. An electric push rod two 313 is fixedly arranged on the upper end face of the lower support plate 31 through a mounting table. The front end of the telescopic section of the electric push rod two 313 is detachably installed with an I-shaped frame connected to the support frame of the wheelchair 7.

[0053] Please refer to Figure 3 and Figure 4 , the clamping part 32 includes four clamping groups. The four clamping groups are respectively arranged on the two support plates 31 and are symmetric in the left-right direction. Each clamping group includes a scissor-type telescopic frame 321. The hinge point of the scissor-type telescopic frame 321 close to the front end is rotatably connected to the upper end face of the corresponding support plate 31. A clamping block 322 for clamping and limiting the support frame of the wheelchair 7 is fixedly arranged at the front end of the scissor-type telescopic frame 321. Flexible telescopic clamping blocks 323 are fixedly arranged on the side walls of the two clamping blocks 322 close to each other; the clamping part 32 further includes a U-shaped connecting frame 324. Two U-shaped connecting frames 324 are arranged and are arranged between the two clamping groups on the corresponding support plate 31 in an up-and-down distribution manner. The two vertical sections of the U-shaped connecting frame 324 are respectively fixedly connected to the hinge points at the rear ends of the corresponding two scissor-type telescopic frames 321. The two U-shaped connecting frames 324 are fixedly connected through a strip-shaped plate 325 sliding inside the sliding groove 311. The rear end of the fixed section of the electric push rod two 313 slidably penetrates the strip-shaped plate 325, and an electric push rod one 326 is fixedly connected to the front end face of the upper U-shaped connecting frame 324. The electric push rod one 326 is fixedly arranged on the upper end face of the upper support plate 31 through a mounting seat.

[0054] Please refer to Figure 1 and Figure 9 , the detection mechanism two 6 includes a sliding block 61 slidably arranged inside the strip-shaped chute 411 and having electromagnets at both left and right ends. A rectangular plate 62 is fixedly arranged on the lower end face of the sliding block 61 through a cylinder. Two mounting grooves 621 are formed on the lower end face of the rectangular plate 62. The two mounting grooves 621 are formed in a left-right symmetric manner and mounting columns 622 are rotatably arranged inside the mounting grooves 621. A pendulum ball 623 with an end face mounting pull ring is fixedly arranged at the lower end of the mounting column 622 through a rope.

[0055] During specific operation, first, the wheelchair 7 is pushed along the slope to the position of the baffle 312, and then the I-shaped frame is fixedly connected to the wheelchair 7 by means of bolts and nuts. At the same time, the first electric push rod 326 is controlled to extend, and the upper C-shaped connecting frame 324 moves backward. At this time, the lower C-shaped connecting frame 324 moves backward synchronously under the drive of the strip plate 325. When the two C-shaped connecting frames 324 move backward, they simultaneously pull the hinge points at the rear ends of the corresponding scissor-type telescopic frames 321. At this time, the clamping blocks 322 provided at the front ends of the scissor-type telescopic frames 321 and the flexible telescopic clamping blocks 323 approach synchronously. After the flexible telescopic clamping block 323 first contacts the support frame of the wheelchair 7, as the C-shaped connecting frame 324 continues to be pushed, the flexible telescopic clamping block 323 on the same scissor-type telescopic frame 321 is gradually pushed and deformed by the support frame of the wheelchair 7 and retracted into the corresponding clamping block 322. The clamping work of the support frame of the wheelchair 7 is completed through the deformation of the flexible telescopic clamping block 323 and the reaction force on the support frame of the wheelchair 7. The support frame of the wheelchair 7 is adaptively clamped and limited by the flexible telescopic clamping block 323 to prevent the wheelchair 7 from tilting before the detection work.

[0056] After the wheelchair 7 is clamped and limited, the sliding block 61 is manually pushed to slide along the strip-shaped chute 411 until the two pendulum balls 623 are respectively located on the left and right sides of the wheelchair 7. Then, the electromagnets on both sides of the sliding block 61 are turned on to magnetically fix the sliding block 61 to the strip-shaped chute 411. Subsequently, the pendulum ball 623 is pulled by the pull ring manually, so that a certain angle is generated between the pendulum ball 623 and the wheelchair 7. Finally, the pull ring is released, so that the pendulum ball 623 swings around the mounting column 622 under the action of gravity and impacts the wheelchair 7 from the side. After repeating this process, the wheelchair 7 is unloaded, and the damaged condition of the wheelchair 7 after the detection is observed manually to judge whether the wheelchair 7 meets the impact detection requirements. That is, if the wheelchair 7 shows minor deformation or bumps but does not affect normal use, the impact resistance performance detection of the wheelchair 7 is qualified. On the contrary, if the wheelchair 7 has large-area deformation, damage, etc. and affects normal use, it means that the impact resistance performance detection of the wheelchair 7 is unqualified.

[0057] It should be noted that when controlling the pendulum ball 623 to perform the impact resistance detection on the wheelchair 7, the diversity of the pendulum hammer detection work can be satisfied by replacing the two pendulum balls 623 in different left and right directions or using the two pendulum balls 623 for testing, thereby ensuring the accuracy of the detection results.

[0058] Please refer to Figure 2 and Figure 5, a sliding groove 21 extending in the vertical direction is formed on the front side wall of the mounting plate 2, and two strip-shaped grooves 22 penetrating through the mounting plate 2 are formed on the rear side wall of the mounting plate 2. One of the strip-shaped grooves 22 is located in the middle, and the other strip-shaped groove 22 is located on the left side. The width of the strip-shaped groove 22 in the middle is wider than the width of the strip-shaped groove 22 on the left side. The upper end of the strip-shaped groove 22 on the left side is open, and two limiting grooves 221 distributed in the vertical direction are formed on the inner walls of its left and right sides. A plurality of strip-shaped through grooves 211 extending in the left-right direction are formed on the inner wall of the sliding groove 21 from top to bottom. A plurality of the strip-shaped through grooves 211 communicate with the strip-shaped groove 22 in the middle. Adjusting plates 23 are fixedly arranged symmetrically up and down at the upper position on the right side of the rear side wall of the mounting plate 2. Chamfers are arranged on the sides of the two adjusting plates 23 away from each other. The two adjusting plates 23 are respectively on the upper and lower sides of the uppermost strip-shaped through groove 211.

[0059] Please refer to Figure 5 , Figure 7 and Figure 9 , a first motor 412 with an output shaft facing downwards and rotatably connected to the mounting plate 2 is fixedly arranged on the lower end surface of the strip-shaped bearing plate 41 and above the mounting plate 2 through a motor seat. A driving gear 413 is fixed on the outer wall of the output shaft of the first motor 412. A driven gear 414 that is always meshed with the driving gear 413 is also rotatably arranged on the lower end surface of the strip-shaped bearing plate 41 through a rotating shaft.

[0060] Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 10 , the driving part 51 includes a supporting disc 511 slidably arranged inside the sliding groove 21. Two arc-shaped sliders two 512 whose arc segments are both electromagnets are slidably arranged above the supporting disc 511 inside the sliding groove 21. A first threaded rod 513 and a first sliding rod 514 extending in the vertical direction are also arranged in the left-right direction inside the sliding groove 21. The upper end of the threaded rod 513 is fixedly connected to the driven gear 414 through a connecting column. The first threaded rod 513 and the first sliding rod 514 respectively penetrate through the corresponding arc-shaped slider two 512, and the first threaded rod 513 is threadedly connected to the corresponding arc-shaped slider two 512. The supporting disc 511 is divided into a connecting section with a larger diameter and magnetically attracted and fixed to the arc-shaped slider two 512 and a mounting section with a smaller diameter fixedly connected to the two supporting plates 31. The mounting section is rotatably arranged inside the connecting section through a bearing. A circular rod penetrating through the strip-shaped groove 22 in the middle is fixedly arranged on the rear side wall of the connecting section of the supporting disc 511. An adjusting square plate 515 is fixedly arranged on the outer wall of the circular rod.

[0061] After using the pendulum ball 623 to complete the impact resistance performance test of the wheelchair 7, observe the damage condition of the wheelchair 7. If it can still be used normally, then start the first motor 412 to drive the driving gear 413 to engage with the driven gear 414 to rotate. At this time, the first threaded rod 513 rotates synchronously under the drive of the connecting column. At the same time, turn on the electromagnets of the arc-shaped sections of the two arc-shaped sliders 512, so that the two arc-shaped sliders 512 are electromagnetically fixed to the support disc 511.

[0062] When the first threaded rod 513 rotates, it drives the arc-shaped slider 512 and the support disc 511 to slide upward along the sliding groove 21. According to the test requirements, control the rising height of the arc-shaped slider 512 and the support disc 511. After the wheelchair 7 is driven by the support disc 511 to the specified height, cut off the power supply of the electromagnets on the two arc-shaped sliders 512. At this time, the support disc 511 and the wheelchair 7 freely fall along the sliding groove 21 under the action of gravity to the supporting plate 1, thus completing the second impact resistance performance test method of the wheelchair 7.

[0063] Finally, manually observe the damage condition of the wheelchair 7 after the fall to determine whether the wheelchair 7 meets the impact test requirements, that is, if the wheelchair 7 has paint peeling, minor deformation and bumps, but does not affect normal use, then the impact resistance performance test of the wheelchair 7 is qualified. On the contrary, if the wheelchair 7 has a support frame skew, large-area deformation and damage, etc., affecting normal use, it means that the impact resistance performance test of the wheelchair 7 is unqualified.

[0064] It should be noted that according to the test method of the wheelchair 7, adjust the rising height of the second threaded rod 521 driving the support disc 511 and the wheelchair 7 to ensure that different test heights can be carried out. At the same time, use the free fall method to test the wheelchair 7 to simulate the scenario when the wheelchair 7 falls from a step with a large height difference, so that the test results are more persuasive. When the support disc 511 drives the wheelchair 7 to free fall, the arc-shaped slider 512 slidingly connected to the slide bar 514 on one side also freely falls to the upper end of the support disc 511 under the action of gravity.

[0065] Please refer to Figure 7 and Figure 8The auxiliary part 52 includes an adjustment group arranged above the corresponding strip-shaped through groove 211, each adjustment group includes a threaded rod 2 521 rotatably arranged on the rear side wall of the mounting plate 2 and a slide rod 2 522 fixedly arranged on the rear side wall of the mounting plate 2, and the outer walls of the threaded rod 2 521 and the slide rod 2 522 are jointly provided with an L-shaped auxiliary plate 523, wherein the L-shaped auxiliary plate 523 is threadedly connected to the threaded rod 2 521, and the L-shaped auxiliary plate 523 is slidingly connected to the slide rod 2 522, and the rear side wall of the threaded rod 2 521 is also fixedly provided with a synchronous pulley 524, and several of the synchronous pulleys 524 are connected by a toothed belt 525 for transmission, and the auxiliary part 52 also includes a driving group 526 for driving the L-shaped auxiliary plate 523 to move synchronously.

[0066] Please refer to Figure 7 、 Figure 8 and Figure 11 The driving group 526 includes an adjusting gear 5261 rotatably arranged on the rear side wall of the mounting plate 2 and fixedly connected to the second threaded rod 521 at the upper end. There are two racks 5262 sliding in the up and down directions on the right side of the adjusting gear 5261, close to the left strip groove 22 and located inside the adjusting gear 5261. The length of the upper rack 5262 is longer than that of the lower rack 5262. The left and right side walls of the upper rack 5262 are arranged in two limiting grooves 221 located below through spring expansion blocks with chamfers at the upper and lower ends. The upper rack 5262 is always engaged with the adjusting gear 5261. The lower rack 5262 is fixedly connected to the connecting section of the support disc 511. The lower end surface of the upper rack 5262 is provided with a T-shaped matching groove, and the two corners of the vertical section of the T-shaped matching groove are chamfered. The upper end of the lower rack 5262 is provided with an electromagnet, and the end surface of the lower rack 5262 is fixedly provided with two T-shaped matching blocks 52621 with chamfers at the expansion section.

[0067] After the free-fall detection method is completed, control the reverse rotation of the first threaded rod 513 to drive the second arc-shaped slider 512 to move downward to the upper end of the support disk 511. Continue to turn on the electromagnets on the two second arc-shaped sliders 512 to magnetically fix the two second arc-shaped sliders 512 to the support disk 511. Observe the damage condition of the wheelchair 7. If it can still be used normally, control the forward rotation of the first threaded rod 513 to drive the wheelchair 7 to continue moving upward. When the wheelchair 7 and the support disk 511 move upward, they will drive the lower rack 5262 to gradually slide upward along the strip groove 22. When the upper end surface of the lower rack 5262 abuts against the lower end surface of the upper rack 5262, the T-shaped fitting block 52621 provided on the upper end surface of the lower rack 5262 will be clamped into the fitting groove on the lower end surface of the upper rack 5262 through the telescopic section with chamfers at both ends. Immediately turn on the electromagnet on the upper end of the lower rack 5262 and magnetically fix the two racks 5262. Since the support disk 511 continues to move upward, at this time, the upper rack 5262 starts to engage with the adjusting gear 5261, the second threaded rod 521, and the synchronous belt pulley 524 to rotate.

[0068] When the uppermost synchronous belt pulley 524 rotates, the other three synchronous belt pulleys 524 are synchronously engaged to rotate through the toothed belt 525. Then, the four L-shaped auxiliary plates 523 all slide along the corresponding second threaded rods 521 and the second slide rods 522 and gradually approach the mounting plate 2. As the wheelchair 7 continues to move upward, the L-shaped auxiliary plates 523 located below the wheelchair 7 will gradually extend along their respective strip through grooves 211. When the adjusting square plate 515 on the support disk 511 moves below the adjusting plate 23, as the support disk 511 continues to move upward, the adjusting square plate 515 is toggled by the chamfer of the adjusting plate 23 and then drives the wheelchair 7 to rotate by ninety degrees. At this time, the three lower L-shaped auxiliary plates 523 gradually extend.

[0069] It should be noted that the horizontal section lengths of the four L-shaped auxiliary plates 523 are different, that is, the horizontal sections of the L-shaped auxiliary plates 523 gradually increase from top to bottom.

[0070] Subsequently, control the first electric push rod 326 to drive the U-shaped connecting frame 324 and the scissor-type telescopic frame 321 to move forward. At this time, the flexible telescopic clamping block 323 that clamps and limits the support frame of the wheelchair 7 is pulled and moves away synchronously. Then, control the telescopic section of the second electric push rod 313 to extend and push against the I-shaped frame and the wheelchair 7, gradually separating the support frame of the wheelchair 7 from the flexible telescopic clamping block 323. At this time, the wheelchair 7 will roll along the lower three-step L-shaped auxiliary plates 523 and freely roll to the lower supporting plate 1 under the action of gravity.

[0071] When the detection method requires adjustment of the detection height of the wheelchair 7, the threaded rod 1 513 can continue to rotate to drive the support disc 511 and the wheelchair 7 to rise to the highest point. At this time, the four L-shaped auxiliary plates 523 below are fully extended. When the adjustment square plate 515 moves to the upper end of the two adjustment plates 23, the threaded rod 1 513 is controlled to reverse. At this time, the adjustment square plate 515 rotates ninety degrees in the opposite direction under the chamfering of the upper adjustment plate 23. Then the operation of the above-mentioned electric push rod 1 326 is repeated, so that the wheelchair 7 rolls along the four stepped L-shaped auxiliary plates 523 below and rolls freely onto the supporting plate 1 below due to gravity.

[0072] Finally, the damage to the wheelchair 7 after rolling is manually observed to determine whether the wheelchair 7 meets the impact test requirements. That is, if the important components of the wheelchair 7 only have minor deformations and bumps, but do not affect normal use, the wheelchair 7 passes the impact resistance test. On the contrary, if the important components of the wheelchair 7 fall apart or have large-scale deformations, which affect normal use, it means that the wheelchair 7 fails the impact resistance test.

[0073] It should be noted that the two adjacent threaded rods 521 and slide rods 522 are arranged in an alternating manner, the purpose of which is to ensure that the force on the mounting plate 2 is uniform when the synchronous pulley 524 rotates, and the upper limit groove 221 set in the left strip groove 22 of the mounting plate 2 is to ensure that the rack 5262 will not separate from the strip groove 22 when moving upward. The purpose is to simulate the real falling and rolling environment of the wheelchair 7, and further improve the persuasiveness of the impact resistance test results of the wheelchair 7.

[0074] In addition, among the three detection methods, only when simulating the wheelchair 7 rolling down the stairs, the telescopic section of the electric push rod 2 313 and the I-beam are no longer fixed. When performing impact detection and free fall detection, the telescopic section of the electric push rod 2 313 and the I-beam are fixed, and the I-beam and the wheelchair 7 are also fixed.

[0075] In addition, the present invention also provides a method for testing the impact resistance of a wheelchair, comprising the following steps:

[0076] S1: During the pendulum test, the wheelchair 7 is first pushed to the designated position and the support frame of the wheelchair 7 is limited by the flexible telescopic clamp 323. Then, the sliding block 61 is pushed to slide along the strip groove 411 until the two pendulum balls 623 are respectively located on the left and right sides of the wheelchair 7. Then, the electromagnets on both sides of the sliding block 61 are turned on so that the sliding block 61 is electromagnetically fixed to the strip groove 411.

[0077] S2: Subsequently, manually pull the pendulum ball 623 through the pull ring, so that a certain angle is generated between the pendulum ball 623 and the wheelchair 7. Finally, release the pull ring, so that the pendulum ball 623 impacts the wheelchair 7 from the side. After repeating this process, observe the damage condition of the wheelchair 7 manually after the test to determine whether the wheelchair 7 meets the impact test requirements. That is, if there are minor deformations and knocks on the wheelchair 7, but it does not affect normal use, then the impact resistance performance test of the wheelchair 7 is qualified. On the contrary, if there are large-area deformations, damages, etc. on the wheelchair 7, affecting normal use, it indicates that the impact resistance performance test of the wheelchair 7 is unqualified.

[0078] S3: After observing the damage condition of the wheelchair 7, if the wheelchair 7 can still be used normally, turn on the electromagnets on the arc-shaped sections of the two arc-shaped sliders II 512, so that the two arc-shaped sliders II 512 are electromagnetically fixed to the support disk 511.

[0079] S4: Drive the support disk 511 and the wheelchair 7 to rise to the specified position by the first threaded rod 513, and then cut off the power supply of the electromagnets on the two arc-shaped sliders II 512. At this time, the support disk 511 and the wheelchair 7 fall freely along the sliding groove 21 under the action of gravity to the supporting plate 1. Finally, observe the damage condition of the wheelchair 7 after the fall manually to determine whether the wheelchair 7 meets the impact test requirements. That is, if there are paint peeling, minor deformations and knocks on the wheelchair 7, but it does not affect normal use, then the impact resistance performance test of the wheelchair 7 is qualified. On the contrary, if there are skewed support frames, large-area deformations and damages, etc. on the wheelchair 7, affecting normal use, it indicates that the impact resistance performance test of the wheelchair 7 is unqualified.

[0080] S5: After the free-fall test method is completed, control the first threaded rod 513 to reverse and drive the arc-shaped slider II 512 to move downward to the upper end of the support disk 511. Continue to turn on the electromagnets on the two arc-shaped sliders II 512, so that the two arc-shaped sliders II 512 are electromagnetically fixed to the support disk 511 again. Observe the damage condition of the wheelchair 7. If it can still be used normally, control the first threaded rod 513 to rotate forward and drive the wheelchair 7 to continue moving upward. The two racks 5262 are electromagnetically adsorbed after contact, and the adjusting gear 5261 is rotated by meshing the teeth, and when the adjusting gear 5261 rotates, the other threaded rods II 521 and the synchronous belt pulleys 524 are rotated through the toothed belt 525 arranged on the second threaded rod 521.

[0081] S6: As the supporting disc 511 gradually rises, the adjusting square plate 515 is toggled by the adjusting plate 23, which then drives the wheelchair 7 to rotate by ninety degrees. At this time, the L-shaped auxiliary plate 523 below is in a stepped shape after extending. Subsequently, the electric push rod 326 is controlled to drive the C-shaped connecting frame 324 and the scissor-type telescopic frame 321 to move forward. At this time, the flexible telescopic clamping block 323 that clamps and limits the support frame of the wheelchair 7 is pulled and moves away synchronously. Subsequently, the telescopic section of the electric push rod 313 is extended and abuts against the I-shaped frame and the wheelchair 7, gradually separating the support frame of the wheelchair 7 from the flexible telescopic clamping block 323. At this time, the wheelchair 7 will roll along the stepped L-shaped auxiliary plate 523 below and freely roll to the lower supporting plate 1 under the action of gravity.

[0082] S7: Finally, the damaged condition of the wheelchair 7 after it has fallen is observed manually to determine whether the wheelchair 7 meets the impact detection requirements. That is, if only minor deformations and knocks occur in the important component parts of the wheelchair 7, but it does not affect normal use, then the impact resistance performance test of the wheelchair 7 is qualified. On the contrary, if the important component parts of the wheelchair 7 are disassembled, deformed on a large scale, etc., affecting normal use, it indicates that the impact resistance performance test of the wheelchair 7 is unqualified.

[0083] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "outside", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present invention. In addition, in the description of the present invention, unless otherwise specified, the meanings of "multiple", "multiple roots", and "multiple groups" are two or more.

[0084] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0085] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A wheelchair anti-impact performance detection system, including a supporting plate (1), characterized in that: The front side wall of the supporting plate (1) is provided with a slope for the auxiliary wheelchair (7) to slide in the front-back direction. The upper end of the supporting plate (1) is fixedly provided with a mounting plate (2) in the vertical direction. A limiting mechanism (3) for limiting the wheelchair (7) is arranged on the mounting plate (2). The wheelchair (7) is placed on the upper end surface of the supporting plate (1) through the limiting mechanism (3). The limiting mechanism (3) includes two supporting plates (31) fixedly arranged on the front side wall of the mounting plate (2) and distributed in the up-down direction. A clamping part (32) for clamping and limiting the wheelchair (7) is jointly arranged between the two supporting plates (31). The rear end of the clamping part (32) is provided with a U-shaped mounting frame (4) with an opening facing forward and fixed on the upper end surface of the supporting plate (1). A detection mechanism I (5) for free-fall detection of the wheelchair (7) is arranged between the U-shaped mounting frame (4) and the mounting plate (2). The detection mechanism I (5) includes a driving part (51) arranged inside the mounting plate (2) and used for driving the wheelchair (7) to move upward repeatedly. The rear end of the driving part (51) is provided with an auxiliary part (52) for assisting in detecting the wheelchair (7). The upper end surface of the U-shaped mounting frame (4) is also fixedly provided with a strip-shaped bearing plate (41) with a strip-shaped chute (411) opened on the lower end surface. A detection mechanism II (6) for pendulum impact test of the wheelchair (7) is arranged inside the strip-shaped chute (411). A sliding groove (21) is opened on the front side wall of the mounting plate (2) in the up-down direction. Two strip-shaped grooves (22) penetrating through the mounting plate (2) are opened on the rear side wall of the mounting plate (2). The width of the middle strip-shaped groove (22) is wider than that of the left-side strip-shaped groove (22). The upper end of the left-side strip-shaped groove (22) is open, and two limiting grooves (221) distributed in the up-down direction are opened on the inner walls on both the left and right sides. A plurality of strip-shaped through grooves (211) extending in the left-right direction are opened on the inner wall of the sliding groove (21) from top to bottom. The plurality of strip-shaped through grooves (211) are communicated with the middle strip-shaped groove (22). Adjusting plates (23) are fixedly arranged on the upper right side of the rear side wall of the mounting plate (2) in a vertically symmetric manner. The two adjusting plates (23) are respectively on the upper and lower sides of the uppermost strip-shaped through groove (211), and chamfers are arranged on the sides of the two adjusting plates (23) away from each other. The auxiliary part (52) includes an adjustment group arranged above the corresponding strip-shaped through groove (211), each adjustment group includes a threaded rod (521) rotatably arranged on the rear side wall of the mounting plate (2) and a slide rod (522) fixedly arranged on the rear side wall of the mounting plate (2), the outer wall of the threaded rod (521) and the slide rod (522) are jointly provided with an L-shaped auxiliary plate (523) whose rear side wall is fixedly connected to the inner wall of the 匚-shaped mounting frame (4) through a spring telescopic rod, wherein the L-shaped auxiliary plate (523) is threadedly connected to the threaded rod (521), and the rear side wall of the threaded rod (521) is also fixedly provided with a synchronous pulley (524), and a plurality of synchronous pulleys (524) are connected to each other through a toothed belt (525). The auxiliary part (52) also includes a driving group (526) for driving the L-shaped auxiliary plate (523) to move synchronously; The driving group (526) includes an adjusting gear (5261) rotatably arranged on the rear side wall of the mounting plate (2) and fixedly connected to the second uppermost threaded rod (521), and two racks (5262) are provided inside the left side strip groove (22) and on the right side of the adjusting gear (5261) and slide in the up and down directions, wherein the length of the upper rack (5262) is longer than the length of the lower rack (5262), and the left and right side walls of the upper rack (5262) are provided in two lower limit grooves ( 221), the upper rack (5262) is always engaged with the adjustment gear (5261), the lower rack (5262) is fixedly connected to the connecting section of the support disc (511), the lower end surface of the upper rack (5262) is provided with a T-shaped matching groove, and the two corners of the vertical section of the T-shaped matching groove are chamfered, the upper end of the lower rack (5262) is provided with an electromagnet, and the end surface of the lower rack (5262) is fixedly provided with two T-shaped matching blocks (52621) with chamfered telescopic sections at the position corresponding to the T-shaped matching groove; A sliding groove (311) is provided at the rear position of the upper end surface of the two support plates (31), a blocking plate (312) extending in the left-right direction is fixedly provided on the upper end surface of the lower support plate (31), and a second electric push rod (313) is fixedly provided on the upper end surface of the lower support plate (31) via a mounting platform, and an I-shaped frame connected to the wheelchair (7) support frame is detachably mounted on the front end of the telescopic section of the second electric push rod (313); The clamping part (32) includes four clamping groups, which are respectively arranged on two support plates (31) and are symmetric in the left - right direction. Each clamping group includes a scissor - type telescopic frame (321). The hinge point of the scissor - type telescopic frame (321) near the front end is rotatably connected to the upper end surface of the corresponding support plate (31). A clamping block (322) for clamping and limiting the support frame of the wheelchair (7) is fixedly arranged at the front end of the scissor - type telescopic frame (321). Flexible telescopic clamping blocks (323) are fixedly arranged on the side walls of the two clamping blocks (322) close to each other. The clamping part (32) further includes a U - shaped connecting frame (324). There are two U - shaped connecting frames (324), which are arranged in a vertically - distributed manner between the two clamping groups on the corresponding support plates (31). The two vertical sections of the U - shaped connecting frame (324) are respectively fixedly connected to the hinge points at the rear ends of the corresponding two scissor - type telescopic frames (321). The two U - shaped connecting frames (324) are fixedly connected by a strip - shaped plate (325) sliding inside the sliding groove (311). The rear end of the fixed section of the electric push rod two (313) slidably penetrates the strip - shaped plate (325), and an electric push rod one (326) is fixedly connected to the front end surface of the upper U - shaped connecting frame (324). The electric push rod one (326) is fixedly arranged on the upper end surface of the upper support plate (31) through a mounting seat; The driving part (51) includes a support disc (511) slidably arranged inside the sliding groove (21). The support disc (511) is fixedly connected to the lower rack (5262). Two arc - shaped sliders two (512) are slidably arranged inside the sliding groove (21) above the support disc (511), and the arc - shaped sections of both are electromagnets. A threaded rod one (513) and a slide rod one (514) extending in the vertical direction are arranged in the sliding groove (21) in the left - right direction. The threaded rod one (513) and the slide rod one (514) respectively penetrate the corresponding arc - shaped sliders two (512), and the threaded rod one (513) is threadedly connected to its corresponding arc - shaped slider two (512). The support disc (511) is divided into a connecting section with a larger diameter and magnetically fixed to the arc - shaped slider two (512) and a mounting section with a smaller diameter fixedly connected to the two support plates (31). The mounting section is rotatably arranged inside the connecting section through a bearing. A circular rod penetrating the middle strip - shaped groove (22) is fixedly arranged on the rear side wall of the connecting section of the support disc (511). An adjusting square plate (515) is fixedly arranged on the outer wall of the circular rod; The detection mechanism two (6) includes a sliding block (61) slidably arranged inside the strip - shaped sliding groove (411), and the left and right ends of the sliding block (61) are electromagnets. A rectangular plate (62) is fixedly arranged at the lower end surface of the sliding block (61) through a cylinder. Two mounting grooves (621) are opened at the lower end surface of the rectangular plate (62). The two mounting grooves (621) are opened in a left - right symmetric manner, and mounting columns (622) are rotatably arranged inside the mounting grooves (621). A pendulum ball (623) with an end - face mounting pull - ring is fixedly arranged at the lower end of the mounting column (622) through a rope.

2. The wheelchair impact resistance performance detection system according to claim 1, wherein: At the lower end face of the strip-shaped bearing plate (41) and directly above the mounting plate (2), a first motor (412) with its output shaft facing downward and rotatably connected to the mounting plate (2) is fixedly arranged through a motor base. A driving gear (413) is fixedly mounted on the outer wall of the output shaft of the first motor (412). A driven gear (414) that is always meshed with the driving gear (413) is rotatably arranged on the lower end face of the strip-shaped bearing plate (41) through a rotating shaft. A connecting column fixedly connected to the first threaded rod (513) is fixedly connected to the lower end face of the driven gear (414).

3. A method for detecting the impact resistance performance of a wheelchair, characterized in that, It is completed in cooperation with a wheelchair impact resistance detection system as described in Claim 1, including the following steps: S1. During the pendulum detection, first, push the wheelchair (7) to the designated position and complete the clamping and limiting work on the support frame of the wheelchair (7) through the flexible telescopic clamping block (323). Then, push the sliding block (61) to slide along the strip-shaped chute (411) until the two pendulum balls (623) are respectively located on the left and right sides of the wheelchair (7). Then, turn on the electromagnets on both sides of the sliding block (61) to make the sliding block (61) electromagnetically fixed to the strip-shaped chute (411). S2. Subsequently, manually pull the pendulum ball (623) through the pull ring to form a certain angle between the pendulum ball (623) and the wheelchair (7). Finally, release the pull ring to make the pendulum ball (623) impact the wheelchair (7) from the side. After repeating this process, unload the wheelchair (7) and manually observe the damaged condition of the wheelchair (7) after the test to determine whether the wheelchair (7) meets the impact detection requirements. That is, if the wheelchair (7) shows minor deformation and bumps but does not affect normal use, the impact resistance detection of the wheelchair (7) is qualified. On the contrary, if the wheelchair (7) has large-area deformation and damage, affecting normal use, it indicates that the impact resistance detection of the wheelchair (7) is unqualified. S3. After observing the damaged condition of the wheelchair (7), if the wheelchair (7) can still be used normally, turn on the electromagnets on the arc-shaped sections of the two arc-shaped sliders two (512) to make the two arc-shaped sliders two (512) electromagnetically fixed to the support disk (511). S4. Drive the support disk (511) and the wheelchair (7) to rise to the designated position by the first threaded rod (513), and then cut off the power supply of the electromagnets on the two arc-shaped sliders two (512). At this time, the support disk (511) and the wheelchair (7) freely fall onto the supporting plate (1) under the action of gravity. Finally, manually observe the damaged condition of the wheelchair (7) after the fall to determine whether the wheelchair (7) meets the impact detection requirements. That is, if the wheelchair (7) shows paint peeling, minor deformation, and bumps but does not affect normal use, the impact resistance detection of the wheelchair (7) is qualified. On the contrary, if the wheelchair (7) shows the support frame skewing, large-area deformation, and damage, affecting normal use, it indicates that the impact resistance detection of the wheelchair (7) is unqualified. S5. When the free fall detection method is completed, the threaded rod 1 (513) is controlled to reverse and drive the arc-shaped slider 2 (512) to move downward to the upper end of the support disc (511), and the electromagnets on the two arc-shaped sliders 2 (512) are continuously connected so that the two arc-shaped sliders 2 (512) are electromagnetically fixed to the support disc (511). The damage of the wheelchair (7) is observed. If it can still be used normally, the threaded rod 1 (513) is controlled to rotate forward and drive the wheelchair (7) to continue to move upward. After the two racks (5262) are in contact, they are electromagnetically attracted and the adjusting gear (5261) is engaged with the teeth to rotate. When the adjusting gear (5261) rotates, the toothed belt (525) provided on the threaded rod 2 (521) is engaged with the remaining threaded rods 2 (521) and the synchronous pulley (524) to rotate. S6. As the support disc (511) gradually rises, the adjustment plate (23) moves the adjustment square plate (515) and then drives the wheelchair (7) to rotate ninety degrees. At this time, the L-shaped auxiliary plate (523) below is stepped after being extended. Then the electric push rod 1 (326) is controlled to drive the 匚-shaped connecting frame (324) and the scissor-type telescopic frame (321) to move forward. At this time, the flexible telescopic clamp (323) that limits the position of the wheelchair (7) support frame is pulled and synchronously moved away. Then the telescopic section of the electric push rod 2 (313) is controlled to extend and push the I-shaped frame and the wheelchair (7), gradually separating the support frame of the wheelchair (7) from the flexible telescopic clamp (323). At this time, the wheelchair (7) will roll along the stepped L-shaped auxiliary plate (523) below and roll freely to the supporting plate (1) below due to gravity. S7. Finally, the damage of the wheelchair (7) after rolling is manually observed to determine whether the wheelchair (7) meets the impact test requirements. That is, if the important components of the wheelchair (7) are only slightly deformed and bumped, but do not affect normal use, then the wheelchair (7) is qualified in the impact resistance test. On the contrary, if the important components of the wheelchair (7) are disassembled or deformed in a large area, affecting normal use, then the wheelchair (7) is unqualified in the impact resistance test.

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