Performance testing device for production of electric walking aids

Abstract

The present application relates to the technical field of rehabilitation auxiliary equipment testing, and particularly relates to a performance testing device for electric walking aid production, comprising a testing table, a supporting unit, a slope starting unit and a supporting frame; the present application can solve the following problems: the actual operation of the walking aid cannot be dynamically simulated and tested, the safety and reliability of the electric walking aid in actual use cannot be effectively tested, and potential safety hazards exist; the present application can simulate the running of the electric walking aid on a flat road, the load running capability of the electric walking aid on a slope road with different slopes, the climbing capability of the electric walking aid, the slow descending capability of the electric walking aid on a slope, and the stability effect of the electric walking aid in a load braking state; during the testing of the electric walking aid, the supporting frame always limits the running direction of the electric walking aid and provides support and protection for the electric walking aid, so as to avoid tilting and falling; in addition, the overall dynamic balance test of the electric walking aid can be completed at one time, and the testing efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation assistive device testing technology, and in particular to a performance testing device for the production of electric walking aids. Background Technology

[0002] Electric walking aids are rehabilitation assistive devices designed to help people with lower limb dysfunction (post-operative rehabilitation patients) complete walking, standing, and positional transfers. They are self-powered, significantly reducing the physical exertion required for walking and assisting users in performing daily activities such as walking, standing, and positional transfers. They are widely used in home-based elderly care, rehabilitation hospitals, and elderly care service institutions. To ensure the safety and performance of electric walking aids during use, appropriate performance tests are conducted after production. These tests include simulating walking on flat ground and replicating actual road conditions such as climbing slopes and bumpy surfaces to determine if the electric walking aid will experience safety incidents such as inability to climb slopes, tipping over, or brake failure. This process effectively tests the performance of electric walking aids.

[0003] In the existing technology, those skilled in the art have also provided technical solutions for testing electric walking aids. For example, Chinese Patent Publication No. CN111487080A discloses an intelligent testing device and method for multiple performance aspects of a walking aid. The disclosed testing device includes an electric control box, a base, a PLC controller mounted on the electric control box, and a brake testing device, a wheel testing device, and a frame testing device mounted on the base. In use, the frame, seat, and handlebars of the walking aid are fixed, and then the frame is moved up and down to test the performance of the frame and seat. During this process, the handlebars are moved up and down, thereby causing the brake lever to swing up and down for testing. At the same time, the brake pads of the wheels are moved up and down to test the brake wheel.

[0004] However, the existing technologies mentioned above have some shortcomings in the testing of walking aids: 1. The existing technology mentioned above only uses the method of fixing and clamping the walking aid to conduct static performance tests on individual components such as brakes, wheels, and frame. It cannot simulate the actual operation of the walking aid, and therefore cannot realize the performance test of the walking aid in real use scenarios such as flat roads, slopes, and bumpy roads. As a result, it cannot effectively test the safety and reliability of electric walking aids in actual use, and there are potential safety hazards.

[0005] 2. Since the existing technologies mentioned above cannot complete multiple dynamic balance tests of a walking aid on the same device, multiple devices or multiple disassembly and assembly are required to complete a comprehensive dynamic balance test. This results in a cumbersome testing process and low testing efficiency, which cannot meet the rapid testing needs of large-scale production of electric walking aids.

[0006] Therefore, based on the above-mentioned viewpoints, there is still room for improvement in existing methods for detecting mobility aids. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides a performance testing device for the production of electric walking aids, comprising a test platform; a support unit mounted on the upper part of the test platform for supporting the electric walking aid to be tested, with one side of the support unit being the inlet end of the electric walking aid and the other side being the outlet end of the electric walking aid; a ramping unit disposed on the upper part of the test platform and used in conjunction with the support unit to simulate uphill and downhill roads of different gradients; and a support frame disposed outside the test platform and the support unit for restricting the running direction of the electric walking aid and supporting the electric walking aid to prevent it from tipping over and falling. After the electric walking aid moves to the top of the support unit, it simulates running on a flat road. Through the coordinated operation of the support unit and the ramp unit, the middle of the flat road bulges upward, forming two symmetrically distributed ramps. This facilitates testing the electric walking aid's load-bearing capacity, climbing ability, descent ability, and stability under load braking conditions on ramps of different gradients. During the testing of the electric walking aid, the support frame always restricts the direction of the electric walking aid's movement and provides support and protection to prevent it from tipping over and falling.

[0008] Preferably, the support unit includes two support shafts symmetrically installed above the test platform. The outer walls of the two support shafts are fitted with transmission belts. Displacement blocks are rotatably installed at both ends of the support shafts. The displacement blocks are installed on the upper part of the test platform. Two top support frames are also symmetrically installed on the upper part of the test platform. The upper ends of the top support frames slide in contact with the inner wall of the upper part of the transmission belt.

[0009] Preferably, the transmission belt is composed of two flat belts and two toothed belts arranged alternately. The outer wall of the flat belts is flat to simulate the electric walking aid running on a flat road. The outer wall of the toothed belts is provided with multiple raised horizontal bars at equal intervals to intercept the electric walking aid and simulate the electric walking aid running on a bumpy road.

[0010] Preferably, the ramp-starting unit includes a lifting shaft rotatably passing through the middle of the flat belt and the toothed belt. Both ends of the lifting shaft are rotatably equipped with linkage blocks. Each of the two linkage blocks has a reinforcing sleeve fitted onto the outer wall of the lifting shaft on its opposite side. Two support brackets corresponding to the positions of the linkage blocks are installed on the upper end of the test platform. Each of the two support brackets has a limiting groove for slidingly placing the linkage blocks on its opposite side. A lead screw is rotatably installed on the support bracket. The lead screw passes through the linkage block through a threaded connection. A forward and reverse motor connected to the lead screw is installed on the upper end of the support bracket via a motor base. A reinforcement component for fixing the lifting bearing support is installed on the support bracket.

[0011] Preferably, displacement blocks are rotatably provided at both ends of the support shaft, and multiple bearing platforms corresponding to the positions of the displacement blocks are installed on the upper end of the test platform. A horizontal slide groove for sliding installation of the displacement blocks is provided on the bearing platform, and a tension spring rod is provided between the displacement block and the inner wall of the horizontal slide groove.

[0012] Preferably, the outer wall of the lifting shaft is fitted with a plurality of hinges located between the flat belt and the toothed belt. The hinge consists of a rotating sleeve and two rotating rings. The rotating sleeve and the rotating rings are both fitted on the outer wall of the lifting shaft. The two rotating rings are symmetrically distributed along the rotating sleeve. The outer wall of the rotating sleeve and the outer wall of the two rotating rings are provided with connecting blocks. A support platform is rotatably provided on the side of the connecting block away from the lifting shaft through a pin. The support platform rests horizontally against the upper end of the top support frame.

[0013] Preferably, the displacement blocks at both ends of the support shaft are provided with receiving plates on opposite sides, and multiple vertical plates corresponding to the positions of the hinges are slidably provided on the upper end of the receiving plates. The end of the support platform away from the lifting shaft is rotatably connected to the vertical plates.

[0014] Preferably, the reinforcement component includes two positioning frames mounted on the support frame. The two positioning frames are symmetrically distributed along the lead screw. A cylinder is mounted on the positioning frame. A pressing frame pointing towards the lifting shaft is mounted on the telescopic end of the cylinder. Multiple semicircular blocks are installed at equal intervals from top to bottom on the side of the pressing frame near the lifting shaft. The semicircular blocks on both sides of the lifting shaft can cooperate to form a circular sleeve that is locked on the outer wall of the lifting shaft. Reinforcing ribs are symmetrically installed vertically on the side of the pressing frame near the cylinder. The reinforcing ribs slide through the positioning frame.

[0015] Preferably, the support frame includes a guide plate installed on one side of the inlet and outlet ends. The guide plate is inclined upward on the side near the transmission belt to guide the electric walker to the upper end of the transmission belt. Two stabilizing frames are symmetrically arranged on the outer wall of the guide plate. A baffle is provided between the two stabilizing frames on the same side of the two guide plates. The distance between the two baffles is equal to the distance between the two flat belts and the two toothed belts. Multiple rotating rollers are rotatably installed on the baffle at equal intervals along the running direction of the electric walker.

[0016] Preferably, the test platform has two fixed frames symmetrically arranged on its upper end, each located below the guide plate. The upper end of the fixed frame has a reciprocating slide groove, and a movable frame is slidably arranged in the reciprocating slide groove. A threaded rod is rotatably arranged on the fixed frame, and the threaded rod passes through the movable frame through a threaded connection. A positioning motor connected to the threaded rod is arranged on the outer wall of the fixed frame through a motor cover. A stop is installed on the movable frame. A bottom support plate is provided at the lower end of the guide plate, and multiple movable wheels are installed at the lower end of the bottom support plate.

[0017] In summary, this application includes the following beneficial technical effects: I. This invention can simulate the load-bearing capacity, climbing ability, descent ability, and stability under load braking of an electric walking aid on flat roads and slopes of different gradients. During the testing of the electric walking aid, the support frame always restricts the running direction of the electric walking aid and provides support and protection to prevent it from tipping over and falling. In addition, it can complete a comprehensive dynamic balance test of the electric walking aid in one go, effectively improving testing efficiency.

[0018] Second, this invention can simulate whether the electric walking aid will tip over or fall when running on flat or bumpy roads by running the electric walking aid on a flat belt or a toothed belt. Different weights of load can be placed on the electric walking aid to simulate whether the electric walking aid will tip over or fall when the user walks on different road sections.

[0019] Third, by controlling the lifting shaft to move upward and supporting the middle part of the upper part of the flat belt and the toothed belt upward, the present invention forms an upper and lower slope with the middle being high and the sides being low. Furthermore, by adjusting the lifting shaft to different heights, the slope can be adjusted according to the test requirements, thereby improving the applicability of the present invention.

[0020] Fourth, before simulating the electric walking aid running on a slope, the drive motor is turned off, the transmission belt is kept stationary, and the electric walking aid is kept in a braking state. It is placed at rest under different slope loads to test the stability of the electric walking aid under slope load braking state, so as to avoid the electric walking aid being unable to brake stably during actual use, which may cause users to fall and pose a safety hazard.

[0021] V. This invention controls the electric walking aid to run from an uphill section to a downhill section, and then reverses to reset, thereby repeatedly testing the reliability of the electric walking aid's climbing ability and downhill descent ability. In addition, the running speed of the electric walking aid can be adjusted to further test whether the electric walking aid will tip over and cause the user to fall during uphill and downhill processes. Furthermore, running the electric walking aid on the upper end of the toothed belt can simulate the stability of the electric walking aid when passing through bumpy sections during uphill and downhill processes. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a structural diagram of the support unit and the slope-raising unit of the present invention.

[0025] Figure 3 This is a schematic diagram of the slope-starting unit of the present invention.

[0026] Figure 4 This is the present invention. Figure 3 A magnified view of part A.

[0027] Figure 5 This is a structural diagram of the lifting shaft, support frame, and reinforcement components of the present invention.

[0028] Figure 6 This is a schematic diagram of the structure of the reinforcement component of the present invention.

[0029] Figure 7 This is a schematic diagram of the support frame of the present invention.

[0030] Figure 8 This is the present invention. Figure 7 A magnified view of section B.

[0031] Figure 9 This is a diagram showing the adjustment state of the support frame of the present invention.

[0032] In the diagram, 1 represents the test bench; 2. Support unit; 21. Support shaft; 211. Displacement block; 212. Bearing platform; 213. Tensioning spring rod; 22. Transmission belt; 221. Flat belt; 222. Toothed belt; 23. Top support frame; 3. Inclined unit; 31. Lifting shaft; 311. Rotating sleeve; 312. Rotating ring; 313. Connecting block; 314. Pin; 315. Support platform; 316. Receiving plate; 317. Vertical plate; 32. Linkage block; 33. Reinforcing sleeve; 34. Support frame; 35. Lead screw; 36. Forward and reverse motor; 37. Reinforcing components; 371. Positioning frame; 372. Cylinder; 373. Extrusion frame; 374. Semicircular block; 375. Reinforcing rib; 4. Support frame; 41. Guide plate; 42. Stabilizing frame; 43. Baffle; 44. Rotating roller; 45. Fixed frame; 46. Reciprocating slide; 47. Moving frame; 48. Threaded rod; 49. Positioning motor; 50. Base support plate; 51. Moving wheel. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-9 The embodiments of the present invention will be described in detail below.

[0034] This application discloses a performance testing device for the production of electric walking aids. It should be noted that the performance testing device for the production of electric walking aids is mainly used in the process of performance testing of electric walking aids. In terms of technical effect, it can simulate the electric walking aid's running on flat roads, its load running capacity, climbing ability, downhill descent ability, and stability under load braking conditions on slopes of different gradients. During the testing of the electric walking aid, the support frame 4 always restricts the running direction of the electric walking aid and provides support and protection to prevent it from tipping over and falling.

[0035] Reference Figure 1 As shown, a performance testing device for the production of electric walking aids includes a test bench 1; a support unit 2, installed on the upper end of the test bench 1, for supporting the electric walking aid to be tested, with one side of the support unit 2 being the inlet end of the electric walking aid and the other side being the outlet end of the electric walking aid; a ramping unit 3, set on the upper end of the test bench 1, used in conjunction with the support unit 2, for simulating uphill and downhill roads of different slopes; and a support frame 4, set on the outside of the test bench 1 and the support unit 2, for restricting the running direction of the electric walking aid and supporting the electric walking aid to prevent it from tipping over and falling.

[0036] In the specific implementation process, the electric walking aid is first moved to the upper part of the support unit 2 and then simulated to run on a flat road. Through the coordinated operation of the support unit 2 and the ramp unit 3, the middle of the flat road is raised upward to form two symmetrically distributed ramps. This facilitates the testing of the electric walking aid's load-bearing capacity, climbing ability, descent ability, and stability under load braking conditions on ramps of different gradients. During the testing of the electric walking aid, the support frame 4 always restricts the running direction of the electric walking aid and provides support and protection to prevent it from tipping over and falling. In addition, the comprehensive dynamic balance test of the electric walking aid can be completed in one go, effectively improving the testing efficiency.

[0037] Reference Figure 2 As shown, in order to provide stable support for the electric walking aid during testing, the support unit 2 in this embodiment includes two support shafts 21 symmetrically installed above the test platform 1. The outer walls of the two support shafts 21 are fitted with transmission belts 22. The support shafts 21 are connected to the output shaft of the external drive motor via elastic belts. Displacement blocks 211 are rotatably installed at both ends of the support shafts 21. The displacement blocks 211 are installed on the upper end of the test platform 1. Two top support frames 23 are also symmetrically installed on the upper end of the test platform 1. The upper ends of the top support frames 23 slide in contact with the inner wall of the upper part of the transmission belt 22 to support the upper part of the transmission belt 22, ensuring that the electric walking aid will not sink downwards when running on the transmission belt 22, and ensuring the stability of the electric walking aid when running on the transmission belt 22.

[0038] Furthermore, in this embodiment, the transmission belt 22 is composed of two flat belts 221 and two toothed belts 222 arranged alternately. The outer wall of the flat belts 221 is flat, which is used to simulate the electric walking aid running on a flat road. The outer wall of the toothed belts 222 is provided with multiple raised horizontal bars at equal intervals. The length direction of the raised horizontal bars is perpendicular to the running direction of the toothed belts 222, which is used to intercept the electric walking aid and simulate the electric walking aid running on a bumpy road.

[0039] In the specific implementation process, the support frame 4 is first moved to a designated position to restrict the electric walking aid from running on the toothed belt 222. Then, the tester drives the electric walking aid from the inlet end onto the toothed belt 222. The external drive motor is then activated, which rotates the support shaft 21. The support shaft 21 drives both the flat belt 221 and the toothed belt 222, with the electric walking aid running in the opposite direction to the toothed belt 222. The tester controls the electric walking aid to run at the same speed as the toothed belt 222, ensuring the electric walking aid moves relative to the toothed belt 222. Test bench 1 is stationary to prevent the electric walking aid from falling. Running the electric walking aid on the toothed belt 222 simulates whether it will tip over or fall on bumpy roads, thus testing its safety and reliability in real-world use. Additionally, restricting the electric walking aid to run on the flat belt 221 with the support frame 4 simulates its operation on flat roads. Furthermore, different weights can be placed on the electric walking aid to simulate whether it will tip over or fall when a user walks on different road sections. If the electric walking aid tipes over or falls during operation, its stability needs to be recalibrated.

[0040] Reference Figure 2 and Figure 3 As shown, in order to improve the test diversity of electric walking aids, uphill and downhill roads can also be simulated in this embodiment. Specifically, the ramp-starting unit 3 includes a lifting shaft 31 that is rotatably inserted through the middle of the flat belt 221 and the toothed belt 222. Both ends of the lifting shaft 31 are rotatably provided with linkage blocks 32. The two linkage blocks 32 are provided with reinforcing sleeves 33 that are sleeved on the outer wall of the lifting shaft 31 on opposite sides. The upper end of the test platform 1 is equipped with two support brackets 34 corresponding to the positions of the linkage blocks 32. The two support brackets 34 are provided with limiting grooves for sliding the linkage blocks 32 on opposite sides. A lead screw 35 is rotatably installed on the support bracket 34. The lead screw 35 passes through the linkage block 32 by means of threaded connection. The upper end of the support bracket 34 is provided with a forward and reverse motor 36 connected to the lead screw 35 through a motor base. The support bracket 34 is equipped with a reinforcing component 37 for supporting and fixing the lifting shaft 31.

[0041] Furthermore, in this embodiment, displacement blocks 211 are rotatably provided at both ends of the support shaft 21, and multiple bearing platforms 212 corresponding to the positions of the displacement blocks 211 are installed on the upper end of the test platform 1. A horizontal slide groove for slidingly installing the displacement blocks 211 is provided on the bearing platform 212, and a tension spring rod 213 is provided between the displacement blocks 211 and the inner wall of the horizontal slide groove.

[0042] In the specific implementation process, after the electric walking aid is tested on a flat road section, it is turned off and braked, and the drive motor is turned off to keep the transmission belt 22 stationary while the electric walking aid remains braked. Then, the forward and reverse motor 36 is started, which drives the lead screw 35 to rotate. The lead screw 35 drives the linkage block 32 to move upward, and the linkage block 32 drives the reinforcing sleeve 33 and the lifting shaft 31 to move upward as a whole. This causes the lifting shaft 31 to lift the middle part of the upper section of the flat belt 221 and the toothed belt 222 upward, thus lifting the upper part of the flat belt 221 and the toothed belt 222. The system creates an upward and downward slope with a higher center and lower sides. The lifting shaft 31 can be adjusted to different heights to adjust the slope according to test requirements, thereby improving the applicability of the invention. This allows the electric walking aid to be placed under a load of 50-200kg on different slopes for 10-30 minutes to simulate the usage of users of different weights. This is used to test the stability of the electric walking aid under load braking on a slope, preventing the electric walking aid from failing to brake stably during actual use and causing users to fall and pose a safety hazard. If the electric walking aid slides down the slope under load, the braking fails and rework is required.

[0043] The testers then restarted the electric walking aid and drove it from an uphill section to a downhill section. They then used the reverse function to run it back downhill to reset it. If the electric walking aid did not have a reverse function, the testers used a lifting device to reverse it to reset it. This process was repeated to test the reliability of the electric walking aid's climbing and descent capabilities. After completing one uphill / downhill test and resetting, the speed could be adjusted to further test whether the electric walking aid would tip over and cause the user to fall during uphill / downhill runs. Furthermore, running the electric walking aid on the toothed belt 222 tested its stability when traversing bumpy sections during uphill / downhill runs.

[0044] When the upper parts of the flat belt 221 and the toothed belt 222 are supported, the support shaft 21 is subjected to tension and adaptively displaces to one side of the lifting shaft 31, and the displacement block 211 moves synchronously with the support shaft 21. During this period, the tension spring rod 213 is squeezed and adaptively contracts by the displacement block 211. When the slope test is no longer needed, the forward and reverse motor 36 drives the lead screw 35 to rotate in the opposite direction. The lead screw 35 drives the linkage block 32, the reinforcing sleeve 33 and the lifting shaft 31 to move down and reset. At this time, the support shaft 21 and the displacement block 211 are reset under the action of the tension spring rod 213 and the flat belt 221 and the toothed belt 222 are tensioned to both sides.

[0045] Reference Figure 3 and Figure 4 As shown, in order to ensure stable support for the electric walker after the middle of the flat belt 221 and the toothed belt 222 are lifted upwards, in this embodiment, the outer wall of the lifting shaft 31 is fitted with multiple hinges located between the flat belt 221 and the toothed belt 222. Each hinge consists of a rotating sleeve 311 and two rotating rings 312. Both the rotating sleeve 311 and the rotating rings 312 are fitted onto the outer wall of the lifting shaft 31, and the two rotating rings 312 are symmetrically distributed along the rotating sleeve 311. Connecting blocks 313 are provided on the outer wall of 11 and the outer walls of the two rotating rings 312. A support platform 315 is rotatably mounted on the side of the connecting block 313 away from the lifting shaft 31 via a pin 314. The support platform 315 rests horizontally on the upper end of the top support frame 23, and a notch is opened at the upper end of the top support frame 23 to place the support platform 315, so that the support platform 315 is flush with the upper end of the top support frame 23 in the initial state, so as to support the flat belt 221 and the toothed belt 222 on the flat road section.

[0046] Furthermore, in this embodiment, the displacement blocks 211 at both ends of the support shaft 21 are provided with receiving plates 316 on opposite sides, and multiple vertical plates 317 corresponding to the positions of the hinges are slidably provided on the upper end of the receiving plates 316. The end of the support platform 315 away from the lifting shaft 31 is rotatably connected to the vertical plates 317.

[0047] In the specific implementation process, when the lifting shaft 31 moves upward, it drives the rotating sleeve 311 and the rotating ring 312 to move upward synchronously. The rotating sleeve 311 and the rotating ring 312 drive the support platform 315 to tilt upward through the connecting block 313 and the pin 314. The tilt angle of the support platform 315 is close to the slope, which is used to support the upward tilting flat belt 221 and toothed belt 222 to ensure the stable operation of the electric walker during the uphill and downhill test. While the support platform 315 tilts upward, the side of the support platform 315 away from the lifting shaft 31 drives the vertical plate 317 to slide adaptively on the receiving plate 316 to avoid interference.

[0048] Reference Figure 5 and Figure 6As shown, in order to ensure that the lifting shaft 31 will not shift downwards and change the slope under the gravity of the electric walker after lifting, this embodiment can also provide corresponding support and fixation for the lifting shaft 31. Specifically, the reinforcement component 37 includes two positioning frames 371 installed on the support frame 34. The two positioning frames 371 are symmetrically distributed along the lead screw 35. A cylinder 372 is installed on the positioning frame 371. The extension and retraction end of the cylinder 372 is equipped with a pressing frame 373 pointing towards one side of the lifting shaft 31. The pressing frame 373 leans against... On one side near the lifting shaft 31, multiple semicircular blocks 374 are installed at equal intervals from top to bottom. The semicircular blocks 374 on both sides of the lifting shaft 31 can cooperate to form a circular sleeve that is locked on the outer wall of the lifting shaft 31. The extrusion frame 373 is symmetrically equipped with reinforcing ribs 375 on the side near the cylinder 372. The reinforcing ribs 375 slide through the positioning frame 371. The reinforcing ribs 375 are used to provide stable support for the extrusion frame 373 and the semicircular blocks 374 locked on the outer wall of the lifting shaft 31, so as to prevent the lifting shaft 31 from moving downward under force and affecting the slope.

[0049] In the specific implementation process, after the lifting shaft 31 is adjusted in height, the cylinder 372 is activated. The cylinder 372 drives the extrusion frame 373 and the semi-circular block 374 to move as a whole closer to the lifting shaft 31, so that the two semi-circular blocks 374 are locked on the outer wall of the lifting shaft 31, thereby supporting and fixing the lifting shaft 31 and preventing the lifting shaft 31 from moving downward under force, which would affect the slope and test accuracy. After the slope test is completed, the cylinder 372 drives the extrusion frame 373 and the semi-circular block 374 to move away from the lifting shaft 31 to reset, so as to release the limit on the lifting shaft 31. Then the linkage block 32 drives the lifting shaft 31 to move downward to reset, so that the transmission belt 22 is reset to the horizontal state.

[0050] Reference Figure 7 , Figure 8 and Figure 9 As shown, to prevent the electric walking aid from falling during testing, a support frame 4 is also provided in this embodiment. Specifically, the support frame 4 includes a guide plate 41 installed on one side of the inlet and outlet ends. The guide plate 41 is inclined upward on the side near the transmission belt 22 to guide the electric walking aid to the upper end of the transmission belt 22. Two stabilizing frames 42 are symmetrically arranged on the outer wall of the guide plate 41. A baffle 43 is provided between the two stabilizing frames 42 on the same side of the two guide plates 41. The distance between the two baffles 43 is equal to the distance between the two flat belts 221 and the two toothed belts 222. Multiple rotating rollers 44 are rotatably installed on the baffles 43 at equal intervals along the running direction of the electric walking aid. These rollers are used to protect the sides of the electric walking aid when it is running on the transmission belt 22. When the electric walking aid is close to the baffles 43, it can be supported by the rotating rollers 44 to prevent the electric walking aid from falling.

[0051] Furthermore, in this embodiment, two fixed frames 45 are symmetrically arranged on the upper end of the test platform 1, respectively located below the guide plate 41. The upper end of the fixed frame 45 is provided with a reciprocating slide groove 46, and a movable frame 47 is slidably arranged in the reciprocating slide groove 46. A threaded rod 48 is rotatably arranged on the fixed frame 45. The threaded rod 48 passes through the movable frame 47 by means of a threaded connection. A positioning motor 49 connected to the threaded rod 48 is provided on the outer wall of the fixed frame 45 through a motor cover. A stop frame 43 is installed on the movable frame 47. A bottom support plate 50 is provided at the lower end of the guide plate 41, and multiple movable wheels 51 are installed at the lower end of the bottom support plate 50.

[0052] In the specific implementation process, when the electric walking aid moves onto and off the transmission belt 22, the transmission belt 22 remains in a flat state. At this time, the guide plate 41 is used to guide the electric walking aid to smoothly enter and exit the transmission belt 22. When the transmission belt 22 moves upward in the middle to form an incline, the gap between the two sides of the transmission belt 22 and the guide plate 41 increases. After the slope test is completed, the lifting shaft 31 moves down to reset, so that the transmission belt 22 returns to a horizontal state, and the gap between the two sides of the transmission belt 22 and the guide plate 41 is reset, so that the electric walking aid can exit the transmission belt 22.

[0053] When the electric walking aid is running on the flat belt 221 or the toothed belt 222, the positioning motor 49 is started. The positioning motor 49 drives the threaded rod 48 to rotate, and the threaded rod 48 drives the moving frame 47 and the stop frame 43 to move as a whole. The guide plate 41 and the bottom support plate 50 move synchronously with the stop frame 43 under the action of the moving wheel 51. In this way, the support frame 4 can be adjusted synchronously according to the testing requirements of the electric walking aid. That is, when the electric walking aid needs to simulate a flat road section test, the support frame 4 is adjusted to the outside of the two flat belts 221, and vice versa, the support frame 4 is adjusted to the outside of the two toothed belts 222, so as to ensure that the support frame 4 always protects and supports the electric walking aid.

[0054] During operation: Step 1: First, move the support frame 4 to the designated position to restrict the electric walking aid from running on the toothed belt 222. Then, the tester drives the electric walking aid from the inlet end to the transmission belt 22. The external drive motor is then started, which drives the support shaft 21 to rotate. The support shaft 21 drives the transmission belt 22 to rotate, and the direction of the electric walking aid's movement is opposite to that of the transmission belt 22. The speed of the transmission belt 22 and the electric walking aid are equal, so that the electric walking aid is stationary relative to the test platform 1. Thus, the electric walking aid running on the toothed belt 222 can simulate whether the electric walking aid will tip over or fall when running on a level road. In addition, running the electric walking aid on the flat belt 221 or the toothed belt 222 can simulate the electric walking aid's operation on flat or bumpy roads. Furthermore, loads of different weights can be placed on the electric walking aid to simulate its load-bearing capacity.

[0055] Step 2: After the electric walking aid is tested on a flat road, turn off the electric walking aid and brake it. Then, start the forward and reverse motor 36. The forward and reverse motor 36 drives the lead screw 35 to rotate. The lead screw 35 drives the linkage block 32, the reinforcing sleeve 33 and the lifting shaft 31 to move upward as a whole. This causes the lifting shaft 31 to lift the middle part of the upper part of the flat belt 221 and the toothed belt 222 upward, so that the upper part of the flat belt 221 and the toothed belt 222 forms an uphill and downhill slope with a high middle and low sides. At the same time, turn off the drive motor to keep the transmission belt 22 stationary. The electric walking aid is kept in a braked state and placed at rest under different slope loads to test the stability of the electric walking aid under slope load braking state.

[0056] Step 3: The tester restarts the electric walking aid and drives it from an uphill section to a downhill section. Then, using the reverse function of the electric walking aid, the tester reverses the vehicle downhill to reset it. If the electric walking aid is not equipped with a reverse function, the tester uses a lifting device to reverse the electric walking aid to reset it. This process is repeated to test the reliability of the electric walking aid's climbing ability and downhill descent ability. In addition, adjusting the operating speed of the electric walking aid can further test whether the electric walking aid will tip over and cause the user to fall during uphill and downhill driving. Furthermore, running the electric walking aid on the upper end of the toothed belt 222 can simulate the stability of the electric walking aid when passing through bumpy sections during uphill and downhill driving.

[0057] After the slope test is completed, the forward and reverse motor 36 drives the lead screw 35 to rotate in the opposite direction. The lead screw 35 drives the linkage block 32, the reinforcing sleeve 33 and the lifting shaft 31 to move down and reset. The support shaft 21 and the displacement block 211 are reset under the action of the tension spring rod 213 and the flat belt 221 and the toothed belt 222 are tensioned to both sides. Then the electric walking aid that has completed the test drives out from the exit end.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A performance testing device for the production of electric walking aids, characterized in that, include: Test stand (1); The support unit (2) is installed on the upper end of the test bench (1) to support the electric walking aid to be tested. One side of the support unit (2) is the inlet end of the electric walking aid, and the other side is the outlet end of the electric walking aid. The support unit (2) includes a transmission belt (22) for forming a ramp to test the electric walking aid. The transmission belt (22) is composed of two flat belts (221) and two toothed belts (222) arranged alternately. The ramp-starting unit (3) is set on the upper end of the test bench (1) and is used in conjunction with the support unit (2) to simulate uphill and downhill roads with different slopes. The ramp-starting unit (3) includes a lifting shaft (31) that is rotatably inserted through the middle of the flat belt (221) and the toothed belt (222). Both ends of the lifting shaft (31) are rotatably equipped with linkage blocks (32). Two support frames (34) corresponding to the positions of the linkage blocks (32) are installed on the upper end of the test bench (1). The support frames (34) are equipped with reinforcement components (37) for supporting and fixing the lifting shaft (31). The reinforcement component (37) includes two positioning frames (371) installed on the support frame (34). The two positioning frames (371) are symmetrically distributed along the lead screw (35). A cylinder (372) is installed on the positioning frame (371). A pressing frame (373) pointing towards the lifting shaft (31) is installed at the telescopic end of the cylinder (372). Multiple semi-circular blocks (374) are installed at equal intervals from top to bottom on the side of the pressing frame (373) near the lifting shaft (31) to support and fix the lifting shaft (31) after the lifting adjustment, so as to avoid the lifting shaft (31) from being moved downward under force and affecting the slope and test accuracy. The support frame (4) is set outside the test platform (1) and the support unit (2) to limit the running direction of the electric walking aid and to support the electric walking aid to prevent it from tipping over and falling. After the electric walking aid runs to the top of the support unit (2), it simulates running on a flat road. Through the coordinated operation of the support unit (2) and the ramp unit (3), the middle of the flat road is raised upward to form two symmetrically distributed ramps. This facilitates testing the electric walking aid's load-bearing capacity, climbing ability, downhill descent ability, and stability under load braking conditions on ramps of different slopes. During the testing of the electric walking aid, the support frame (4) always restricts the running direction of the electric walking aid and provides support and protection to prevent it from tipping over and falling.

2. The performance testing device for the production of electric walking aids according to claim 1, characterized in that: The support unit (2) includes two support shafts (21) symmetrically installed above the test bench (1). The outer walls of the two support shafts (21) are fitted with transmission belts (22). Displacement blocks (211) are rotatably installed at both ends of the support shafts (21). The displacement blocks (211) are installed at the upper end of the test bench (1). Two top support frames (23) are also symmetrically installed at the upper end of the test bench (1). The upper end of the top support frame (23) slides in contact with the inner wall of the upper part of the transmission belt (22).

3. The performance testing device for the production of electric walking aids according to claim 1, characterized in that: The outer wall of the flat belt (221) of the transmission belt (22) is flat, which is used to simulate the electric walking aid running on a flat road. The outer wall of the toothed belt (222) is provided with multiple raised horizontal bars at equal intervals, which are used to intercept the electric walking aid and simulate the electric walking aid running on a bumpy road.

4. The performance testing device for the production of electric walking aids according to claim 1, characterized in that: The two linkage blocks (32) are provided with reinforcing sleeves (33) that are sleeved on the outer wall of the lifting shaft (31) on opposite sides. The two support brackets (34) are provided with limiting grooves for sliding placement of the linkage blocks (32) on opposite sides. A lead screw (35) is rotatably installed on the support bracket (34). The lead screw (35) passes through the linkage block (32) by means of threaded connection. A forward and reverse motor (36) connected to the lead screw (35) is provided at the upper end of the support bracket (34) through a motor seat.

5. The performance testing device for the production of electric walking aids according to claim 2, characterized in that: Displacement blocks (211) are rotatably provided at both ends of the support shaft (21). Multiple bearing platforms (212) corresponding to the positions of the displacement blocks (211) are installed on the upper end of the test platform (1). A horizontal slide groove for sliding installation of the displacement blocks (211) is provided on the bearing platform (212). A tension spring rod (213) is provided between the displacement block (211) and the inner wall of the horizontal slide groove.

6. The performance testing device for the production of electric walking aids according to claim 4, characterized in that: The outer wall of the lifting shaft (31) is fitted with a plurality of hinges located between the flat belt (221) and the toothed belt (222). The hinges consist of a rotating sleeve (311) and two rotating rings (312). The rotating sleeve (311) and the rotating rings (312) are both fitted on the outer wall of the lifting shaft (31). The two rotating rings (312) are symmetrically distributed along the rotating sleeve (311). The outer wall of the rotating sleeve (311) and the outer wall of the two rotating rings (312) are both provided with connecting blocks (313). The side of the connecting block (313) away from the lifting shaft (31) is rotatably provided with a support platform (315) through a pin (314). The support platform (315) rests horizontally on the upper end of the top support frame (23).

7. The performance testing device for the production of electric walking aids according to claim 6, characterized in that: The displacement blocks (211) at both ends of the support shaft (21) are provided with support plates (316) on opposite sides. Multiple vertical plates (317) corresponding to the positions of the hinges are slidably provided on the upper end of the support plate (316). The end of the support platform (315) away from the lifting shaft (31) is rotatably connected to the vertical plate (317).

8. The performance testing device for the production of electric walking aids according to claim 1, characterized in that: The semi-circular blocks (374) on both sides of the lifting shaft (31) can cooperate to form a circular sleeve that is locked on the outer wall of the lifting shaft (31). The extrusion frame (373) is symmetrically equipped with reinforcing ribs (375) on the side near the cylinder (372). The reinforcing ribs (375) slide through the positioning frame (371).

9. The performance testing device for the production of electric walking aids according to claim 1, characterized in that: The support frame (4) includes a guide plate (41) installed on one side of the inlet and outlet ends. The guide plate (41) is inclined upward on the side near the transmission belt (22) to guide the electric walker to the upper end of the transmission belt (22). Two stabilizers (42) are symmetrically arranged on the outer wall of the guide plate (41). A baffle (43) is provided between the two stabilizers (42) on the same side of the two guide plates (41). The distance between the two baffles (43) is equal to the distance between the two flat belts (221) and the two toothed belts (222). Multiple rollers (44) are rotatably installed on the baffles (43) at equal intervals along the running direction of the electric walker.

10. A performance testing device for the production of an electric walking aid according to claim 9, characterized in that: The test bench (1) is symmetrically provided with two fixed frames (45) located below the guide plate (41). The fixed frame (45) has a reciprocating slide groove (46) at its upper end. A movable frame (47) is slidably provided in the reciprocating slide groove (46). A threaded rod (48) is rotatably provided on the fixed frame (45). The threaded rod (48) passes through the movable frame (47) by means of a threaded connection. A positioning motor (49) connected to the threaded rod (48) is provided on the outer wall of the fixed frame (45) through a motor cover. A stop frame (43) is installed on the movable frame (47). A bottom support plate (50) is provided at the lower end of the guide plate (41). Multiple movable wheels (51) are installed at the lower end of the bottom support plate (50).

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