Electric wheelchair drive motor noise detection device

Abstract

This invention provides a noise detection device for an electric wheelchair drive motor, including a base with an I-shaped structure. The base includes a bottom plate, a first support plate, and a second support plate, which are arranged parallel to each other. The first support plate is vertically fixed between the bottom plate and the second support plate. A power supply is provided on the bottom surface of the second support plate, and a wiring terminal is provided on the side wall of the power supply. A third support plate is vertically fixed on the top surface of the second support plate, and a positioning component is provided on the side wall of the third support plate. This invention controls the detection component to descend and separate two electric wheel sets, performing noise detection on the electric wheel set to be tested separately. Then, the detection component is controlled to rise, and a docking component is used to connect the electric wheel sets to be tested with a standard electric wheel set. The noise generated by connecting the two sets of electric wheel sets is then detected, improving the diversity of noise detection and thus improving the noise detection effect.

Description

Technical Field

[0001] This invention relates to the field of electric wheelchair testing equipment technology, specifically to an electric wheelchair drive motor noise testing device. Background Technology

[0002] The fundamental difference between electric wheelchairs and traditional electric mobility scooters, bicycles, and other mobility aids lies in the fact that electric wheelchairs have a control controller. Depending on the control method, there are joystick controllers, as well as controllers using head movements or blow-and-suction systems, etc. The latter are mainly suitable for severely disabled people with upper or lower limb disabilities. Today, electric wheelchairs have become an indispensable mobility tool for the elderly and disabled with limited mobility, and their applicability is very broad. As long as the user is conscious and has normal cognitive abilities, using an electric wheelchair is a good choice, although a certain amount of space is required for movement.

[0003] Electric wheelchairs primarily achieve their mobility by controlling electric wheel sets. These electric wheel sets typically consist of a frame, tires, a drive motor, and wiring. Since the drive motor generates noise during operation, to minimize noise interference for the user, the electric wheel sets to be tested are usually positioned, fixed, and powered on. Then, noise testing instruments are used to detect the noise levels next to the electric wheel sets, and those that meet the noise standards are selected.

[0004] However, this testing method only detects the noise of a single electric wheel set when it is running alone. The testing method is limited, while electric wheelchairs often use a structure with two electric wheel sets. When the two electric wheel sets are connected together, resonance will occur, resulting in superimposed vibration noise. Therefore, this testing method is not accurate in detecting the noise of the drive motor.

[0005] In summary, there is a need for a noise detection device for electric wheelchair drive motors with diverse detection methods. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an electric wheelchair drive motor noise detection device, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An electric wheelchair drive motor noise detection device includes a base, which has an I-shaped structure. The base includes a bottom plate, a first support plate, and a second support plate, which are arranged parallel to each other. The first support plate is vertically fixed between the bottom plate and the second support plate. A power supply is provided on the bottom surface of the second support plate, and a wiring terminal is provided on the side wall of the power supply. A third support plate is vertically fixed on the top surface of the second support plate, and a positioning component is provided on the side wall of the third support plate. Two sets of positioning components are mirror-arranged. A detection component with a lifting structure is connected to the top surface of the third support plate. The detection component is lowered to fit against the top surface of the second support plate and serves to separate the two sets of positioning components. Two first limiting blocks are fixed to the top surface of the second support plate. The first limiting blocks have a U-shaped structure and are located at the bottom of the positioning components. A docking component is connected to the top surface of the second support plate, and the docking component is located between the two first limiting blocks.

[0009] Furthermore, the detection assembly includes a first partition, a fourth support plate, a fifth support plate, a second pneumatic rod, a third guide rod, a pressure plate, and a second partition. The fourth support plate is fixed to the top surface of the third support plate. The fifth support plate is vertically fixed to the top side wall of the fourth support plate. The top surface of the fifth support plate is provided with a second pneumatic rod. The telescopic bottom end of the second pneumatic rod passes through the interior of the fifth support plate and is connected to the second partition. The bottom surface of the second partition is vertically connected to the first partition. The top surface of the second partition is connected to the third guide rod, which is inserted through the interior of the fifth support plate. The top surface of the second partition is fixed with a pressure plate. Two pressure plates are mirror-image arranged. The first partition is located on the top of the docking assembly. The docking assembly is a pressing and lifting structure that uses the first partition.

[0010] Furthermore, the detection component also includes a detection block, and storage slots are provided on both sides of the first partition. The detection block is connected inside the storage slots, and a noise collector is provided on the outer wall of the detection block.

[0011] Furthermore, the detection block is rotatably connected to the inside of the storage groove by a torsion spring. The detection block has a triangular prism structure. Two second limiting blocks are fixed to the side wall of the third support plate. The first partition is slidably inserted between the two second limiting blocks. The detection block is fitted and limited by the second limiting blocks and stored inside the storage groove.

[0012] Furthermore, the top of the second limiting block has a semi-circular structure.

[0013] Furthermore, the positioning component is a press-type positioning structure, and the pressure plate is disposed on the top of the positioning component.

[0014] Furthermore, the positioning component includes a baffle, a positioning block, a fixing plate, a second guide rod, a push block, and a second spring. The baffle is connected to the side wall of the third support plate. A fixing plate is fixed to the top side wall of the baffle. A second guide rod is inserted through the fixing plate. A push block is fixed to the top of the second guide rod. A positioning block is fixed to the bottom of the second guide rod. A second spring is sleeved on the outer wall of the second guide rod. The second spring is located on the top of the fixing plate. The pressure plate has an L-shaped structure and is located on the top of the push block.

[0015] Furthermore, the docking assembly includes a first guide rod, a first spring, a first pneumatic rod, a clamping plate, and a connecting rod. Two first guide rods are inserted into the connecting rod. The first guide rods are connected to the top surface of the second support plate. A first spring is sleeved on the outer wall of the first guide rod. The first spring is located at the bottom of the connecting rod. A first pneumatic rod is inserted and fixed at both ends of the connecting rod. The telescopic end of the pneumatic rod is connected to the clamping plate. A slot is opened on the bottom surface of the first partition plate. The connecting rod descends through the first partition plate and is inserted into the slot.

[0016] Furthermore, a plug is fixed to the top surface of the second support plate. The plug is located at the bottom of the connecting rod. The top surface of the plug is a semi-circular groove structure. The plug is inserted into the slot through the first partition.

[0017] This invention provides a noise detection device for electric wheelchair drive motors. Compared with existing technologies, it has the following advantages: By positioning a standard electric wheel set within a first limiting block, and then positioning the electric wheel set to be tested within another first limiting block, the detection component is lowered to separate the two electric wheel sets, allowing for separate noise detection of the electric wheel set to be tested. Then, the detection component is raised, and a docking component is used to connect the electric wheel set to be tested with the standard electric wheel set. The noise generated by connecting the two sets of electric wheel sets is then detected, increasing the diversity of noise detection and thus improving the noise detection effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the electric wheelchair drive motor noise detection device of the present invention is shown;

[0020] Figure 2 A cross-sectional view of the overall internal structure of the present invention is shown;

[0021] Figure 3 This diagram illustrates the overall structure of the present invention with a set of standard electric wheel sets in place.

[0022] Figure 4 This invention illustrates a structural schematic diagram of the first partition separating the electric wheel assembly under test for noise detection according to the present invention.

[0023] Figure 5 This diagram illustrates the structure of the docking assembly of the present invention, which connects two sets of electric wheel sets together for noise detection.

[0024] Figure 6 It shows Figure 5 A magnified schematic diagram of the structure at point A;

[0025] The diagram shows: 1. Base; 11. Base plate; 12. First support plate; 13. Second support plate; 131. Insert block; 2. Power supply; 21. Connector; 3. First limiting block; 4. Connecting assembly; 41. First guide rod; 42. First spring; 43. First pneumatic rod; 44. Clamping plate; 45. Connecting rod; 5. Third support plate; 51. Second limiting block; 6. Positioning assembly; 61. Baffle; 62. Positioning block; 63. Fixing plate; 64. ... 65. Second guide rod; 66. Push block; 77. Second spring; 78. Detection assembly; 79. Detection block; 70. Noise collector; 71. First partition; 72. Storage slot; 72. Card slot; 73. Fourth support plate; 74. Fifth support plate; 75. Second pneumatic rod; 76. Third guide rod; 77. Pressure plate; 78. Second partition; 89. Electric wheel set; 80. Frame; 81. Tire; 82. Drive motor; 83. Card sleeve; 84. Wire. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1

[0028] To address the technical problems mentioned in the background section, the following electric wheelchair drive motor noise detection device is provided:

[0029] Combination Figures 1-6As shown, the noise detection device for the electric wheelchair drive motor 83 provided by the present invention includes a base 1, which has an I-shaped structure. The base 1 includes a bottom plate 11, a first support plate 12, and a second support plate 13. The bottom plate 11 and the second support plate 13 are arranged in parallel. The first support plate 12 is vertically fixed between the bottom plate 11 and the second support plate 13. A power supply 2 is provided on the bottom surface of the second support plate 13, and a wiring terminal 21 is provided on the side wall of the power supply 2. A third support plate 5 is vertically fixed on the top surface of the second support plate 13. A positioning component 6 is provided on the side wall. Two sets of the positioning component 6 are mirrored. A detection component 7 with a lifting structure is connected to the top surface of the third support plate 5. The detection component 7 is lowered and attached to the top surface of the second support plate 13 and is used to separate the two sets of positioning components 6. Two first limiting blocks 3 are fixed on the top surface of the second support plate 13. The first limiting blocks 3 have a U-shaped structure and are located at the bottom of the positioning component 6. A docking component 4 is connected to the top surface of the second support plate 13. The docking component 4 is located between the two first limiting blocks 3.

[0030] By positioning the standard electric wheel set 8 within a first limiting block 3, and then positioning the electric wheel set 8 to be tested within another first limiting block 3, the detection component 7 is lowered to separate the two electric wheel sets 8, and noise is detected separately for the electric wheel set 8 to be tested. Then, the detection component 7 is raised, and the electric wheel set 8 to be tested is connected to the standard electric wheel set 8 using the docking component 4. The noise generated by the connection of the two sets of electric wheel sets 8 is then detected, which increases the diversity of noise detection and thus improves the noise detection effect.

[0031] As an improvement to the above technical solution, the detection component 7 includes a first partition 72, a fourth support plate 73, a fifth support plate 74, a second pneumatic rod 75, a third guide rod 76, a pressure plate 77, and a second partition 78. The fourth support plate 73 is fixed to the top surface of the third support plate 5. The fifth support plate 74 is vertically fixed to the top side wall of the fourth support plate 73. The second pneumatic rod 75 is provided on the top surface of the fifth support plate 74. The telescopic bottom end of the second pneumatic rod 75 passes through the interior of the fifth support plate 74 and is connected to the second partition 78. The bottom surface of the second partition 78 is vertically connected to the first partition 72. The top surface of the second partition 78 is connected to the third guide rod 76. The third guide rod 76 is inserted through the interior of the fifth support plate 74. The pressure plate 77 is fixed on the top surface of the second partition 78. There are two mirror images of the pressure plate 77. The first partition 72 is provided on the top of the docking component 4. The docking component 4 is a pressing and lifting structure based on the first partition 72.

[0032] As an improvement to the above technical solution, the detection component 7 further includes a detection block 71. The first partition 72 has storage slots 721 on both sides. The storage slots 721 are connected to the detection block 71. The outer wall of the detection block 71 is provided with a noise collector 711.

[0033] As an improvement to the above technical solution, the detection block 71 is rotatably connected to the inside of the storage groove 721 by a torsion spring. The detection block 71 is a triangular prism structure. Two second limiting blocks 51 are fixed on the side wall of the third support plate 5. The first partition plate 72 is slidably inserted between the two second limiting blocks 51. The detection block 71 is fitted and limited inside the storage groove 721 by the second limiting blocks 51.

[0034] When the entire detection assembly 7 is in the upward position, the detection block 71 flips out from the inside of the storage slot 721, which allows the noise collector 711 to tilt and align with the docked electric wheel set 8 to perform noise detection.

[0035] When the detection assembly 7 is in a downward position, the first partition 72 and the second partition 78 separate the two sets of electric wheel sets 8, and at the same time the detection block 71 is put into the storage slot 721, so that the noise collector 711 is kept horizontal and aligned with the electric wheel set 8 for individual detection.

[0036] As the first partition 72 rises and falls, the noise collector 711 is always able to be aligned with the direction of the electric wheel assembly 8 for detection, improving the accuracy of noise detection of the drive motor 83.

[0037] As an improvement to the above technical solution, the top of the second limiting block 51 has a semi-circular structure;

[0038] The second limiting block 51 with a semi-circular structure can gradually push the detection block 71 into the storage groove 721 by using the semi-circular arc surface when the first partition 72 descends, which improves the flexibility and stability of the detection block 71 flipping.

[0039] Example 2

[0040] like Figure 2 and Figure 4 As shown, based on the above embodiments, this embodiment further provides the following:

[0041] When performing noise detection on the electric wheel set 8, the positioning component 6 is needed to position and fix the electric wheel set 8. When connecting two sets of electric wheel sets 8 together, the positioning component 6 needs to be adjusted to release the restriction on the electric wheel set 8 in order to detect noise more accurately. However, adjusting the positioning component 6 each time is quite troublesome. Therefore, based on the above problems, the following structure is given to solve the problem.

[0042] The positioning component 6 is a press-type positioning structure, and the pressure plate 77 is disposed on the top of the positioning component 6;

[0043] By controlling the second partition 78 to descend, the two pressure plates 77 are driven to descend and press the positioning component 6, so that the positioning component 6 positions the electric wheel set 8. The operation is simple and efficient.

[0044] As an improvement to the above technical solution, the positioning component 6 includes a baffle 61, a positioning block 62, a fixing plate 63, a second guide rod 64, a push block 65, and a second spring 66. The baffle 61 is connected to the side wall of the third support plate 5. The fixing plate 63 is fixed to the top side wall of the baffle 61. The second guide rod 64 is inserted through the fixing plate 63. The push block 65 is fixed to the top of the second guide rod 64. The positioning block 62 is fixed to the bottom of the second guide rod 64. The second spring 66 is sleeved on the outer wall of the second guide rod 64. The second spring 66 is located on the top of the fixing plate 63. The pressure plate 77 has an L-shaped structure and is located on the top of the push block 65.

[0045] Example 3

[0046] like Figures 2-4 As shown, based on the above embodiments, this embodiment further provides the following:

[0047] After connecting the two sets of electric wheel sets 8 together, in order to avoid the bottom support interfering with the vibration of the electric wheel sets 8 and affecting the noise detection effect, it is necessary to adjust the docking component 4 to lift the two sets of electric wheel sets 8 to the air. However, the operation is cumbersome, resulting in low noise detection efficiency. Therefore, based on the above problems, the following structure is given to solve the problem.

[0048] The docking assembly 4 includes a first guide rod 41, a first spring 42, a first pneumatic rod 43, a clamping plate 44, and a connecting rod 45. Two first guide rods 41 are inserted into the connecting rod 45. The first guide rods 41 are connected to the top surface of the second support plate 13. The first spring 42 is sleeved on the outer wall of the first guide rod 41. The first spring 42 is located at the bottom of the connecting rod 45. The first pneumatic rod 43 is inserted and fixed at both ends of the connecting rod 45. The telescopic end of the pneumatic rod is connected to the clamping plate 44. The bottom surface of the first partition plate 72 has a slot 722. The connecting rod 45 descends through the first partition plate 72 and is inserted into the slot 722.

[0049] When the first partition 72 descends to separate the two sets of electric wheel sets 8, the connecting rod 45 is inserted into the slot 722 and descends along the first guide rod 41. At this time, the clamping plate 44 is extended by activating the first pneumatic rod 43. Then, when the first partition 72 rises, the two clamping plates 44 are inserted into the electric wheel sets 8 respectively. Then, the first pneumatic rod 43 is activated again, and the clamping plates 44 are used to clamp the electric wheel sets 8 onto the connecting rod 45, connecting the two sets of electric wheel sets 8 together. Then, the first partition 72 continues to rise and separates from the connecting rod 45, so that the first spring 42 pushes the connecting rod 45 to continue to rise, suspending the bottom of the two sets of electric wheel sets 8 in the air. Then, noise detection is performed, which further improves the noise detection effect of the drive motor 83.

[0050] As an improvement to the above technical solution, the top surface of the second support plate 13 is fixed with an insert block 131. The insert block 131 is located at the bottom of the connecting rod 45. The top surface of the insert block 131 is a semi-circular groove structure. The insert block 131 is inserted into the slot 722 through the first partition plate 72.

[0051] By pushing the connecting rod 45 downward into the semi-circular groove on the insert 131, and at the same time inserting the insert 131 into the slot 722, the first partition 72 is sealed, thus ensuring the sound insulation effect of the first partition 72 on the electric wheel sets 8 on both sides.

[0052] Working principle and usage process of this invention:

[0053] First press Figures 1-3 First, connect the electric wheel set 8 that meets the testing standards to the testing device. The electric wheel set 8 consists of a frame 81, a tire 82, a drive motor 83, a ferrule 84, and a wire 85. First, insert the frame 81 into the first limiting block 3 on the second support plate 13. The side of the frame 81 is in contact with the baffle 61, while the tire 82 is on the outside of the baffle 61. Then, plug the connector of the wire 85 into the terminal 21 of the power supply 2.

[0054] Then press Figure 2 and Figure 4 Insert the electric wheel set 8 to be tested into another first limiting block 3, connect the wire 85 to the connector 21, then start the second pneumatic rod 75 to push the second partition 78 downward. The second partition 78 drives the first partition 72 to move downward. The first partition 72 is inserted between the two second limiting blocks 51. The two second limiting blocks 51 restrict the first partition 72 on both sides. During the descent of the first partition 72, the second limiting blocks 51 push the detection block 71 to flip and enter the storage groove 721. At this time, the noise collector 711 on the outer wall of the detection block 71 keeps horizontal and aligned with the drive motor 83 of the electric wheel set 8.

[0055] The second partition 78 moves downward so that the pressure plate 77 first comes into contact with the push block 65, and then pushes the push block 65 downward so that the second guide rod 64 slides downward inside the fixed plate 63. The push block 65 compresses the second spring 66 downward and presses the positioning block 62 onto the frame 81, thus completing the positioning and fixing of the two sets of electric wheel sets 8.

[0056] Meanwhile, as the first partition 72 descends, the connecting rod 45 first inserts into the slot 722, and then descends with the first partition 72 into the groove of the insert block 131. The connecting rod 45 descends along the first guide rod 41 and compresses the first spring 42 until the insert block 131 is inserted into the slot 722. At this time, the bottom surface of the first partition 72 is attached to the second support plate 13, separating the electric wheel set 8 to be tested from the standard electric wheel set 8. Then, the power supply 2 is turned on to make the drive motor 83 of the electric wheel set 8 to be tested start running. The noise generated is collected by the noise collector 711 and the collected data is transmitted to the computer.

[0057] Press again Figure 2 , Figure 5 and Figure 6 After performing a separate noise test on the electric wheel assembly 8, the first pneumatic rods 43 at both ends of the connecting rod 45 are activated simultaneously to extend the two clamping plates 44. Then, the second pneumatic rod 75 is activated again to pull the second partition 78 upward. The rise of the second partition 78 causes the pressure plate 77 to begin to separate from the push block 65, and under the elastic force of the second spring 66, the positioning block 62 separates from the frame 81.

[0058] At the same time, the second partition 78 drives the first partition 72 to rise. The rise of the first partition 72 causes the detection block 71 to be pulled out from between the second limit blocks 51. Under the torsion of the torsion spring, the detection block 71 flips out from inside the storage slot 721, so that the noise collector 711 tilts and aligns with the drive motor 83. At the same time, under the elastic force of the first spring 42, the connecting rod 45 is pushed to rise, so that the connecting rod 45 is always inserted into the slot 722 until the two clamping plates 44 are respectively inserted into the sleeves 84 of the two sets of electric wheel sets 8. The clamping plates 44 rise into the slots 841 of the sleeves 84, while the telescopic rod of the first pneumatic rod 43 slides in the slide groove 842. Then the first pneumatic rod 43 is activated again to pull the clamping plates 44 back, and the clamping plates 44 clamp the sleeves 84 onto the connecting rod 45.

[0059] Two sets of electric wheel sets 8 are fixed to the connecting rod 45 by the clamp 84 to form a whole. Then, the second partition 78 is controlled to rise, so that the first partition 72 begins to separate from the connecting rod 45. The connecting rod 45 continues to rise under the elastic force of the first spring 42, so that the two sets of electric wheel sets 8 rise and separate from the second support plate 13. Then, the power supply 2 is restarted, and the drive motor 83 of the two sets of electric wheel sets 8 is started to run. The noise generated by the two sets of electric wheel sets 8 connected together is collected by the noise collector 711, and the collected data is transmitted to the computer. Based on the noise data collected twice, the electric wheel sets 8 that meet the standards are selected.

[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A noise detection device for an electric wheelchair drive motor, characterized in that: The system includes a base, which has an I-shaped structure. The base includes a bottom plate, a first support plate, and a second support plate. The bottom plate and the second support plate are arranged in parallel. The first support plate is vertically fixed between the bottom plate and the second support plate. A power supply is provided on the bottom surface of the second support plate, and a connector is provided on the side wall of the power supply. A third support plate is vertically fixed on the top surface of the second support plate. A positioning component is provided on the side wall of the third support plate. Two sets of positioning components are mirror-arranged. A detection component with a lifting structure is connected to the top surface of the third support plate. The detection component is lowered to fit against the top surface of the second support plate and is used to separate the two sets of positioning components. Two first limiting blocks are fixed to the top surface of the second support plate. The first limiting blocks have a U-shaped structure and are located at the bottom of the positioning components. A docking component is connected to the top surface of the second support plate and is located between the two first limiting blocks. The detection assembly includes a first partition, a fourth support plate, a fifth support plate, a second pneumatic rod, a third guide rod, a pressure plate, and a second partition. The fourth support plate is fixed to the top surface of the third support plate. The fifth support plate is vertically fixed to the top side wall of the fourth support plate. The second pneumatic rod is provided on the top surface of the fifth support plate. The telescopic bottom end of the second pneumatic rod passes through the interior of the fifth support plate and is connected to the second partition. The first partition is vertically connected to the bottom surface of the second partition. The third guide rod is connected to the top surface of the second partition and is inserted through the interior of the fifth support plate. A pressure plate is fixed on the top surface of the second partition. Two pressure plates are mirror-image arranged. The first partition is located on the top of the docking assembly. The docking assembly is a press-and-lift structure. The detection assembly also includes a detection block. The first partition has storage slots on both sides, and the detection block is connected inside the storage slots. A noise collector is provided on the outer wall of the detection block. The detection block is rotatably connected to the inside of the storage slot by a torsion spring. The detection block has a triangular prism structure. Two second limiting blocks are fixed on the side wall of the third support plate. The first partition is slidably inserted between the two second limiting blocks. The detection block is fitted and limited by the second limiting blocks and stored inside the storage slot.

2. The electric wheelchair drive motor noise detection device according to claim 1, characterized in that: The top of the second limiting block has a semi-circular structure.

3. The electric wheelchair drive motor noise detection device according to claim 2, characterized in that: The positioning component is a press-type positioning structure, and the pressure plate is located on the top of the positioning component.

4. The electric wheelchair drive motor noise detection device according to claim 3, characterized in that: The positioning assembly includes a baffle, a positioning block, a fixing plate, a second guide rod, a push block, and a second spring. The baffle is connected to the side wall of the third support plate. A fixing plate is fixed to the top side wall of the baffle. A second guide rod is inserted through the fixing plate. A push block is fixed to the top of the second guide rod. A positioning block is fixed to the bottom of the second guide rod. A second spring is sleeved on the outer wall of the second guide rod. The second spring is located on the top of the fixing plate. The pressure plate has an L-shaped structure and is located on the top of the push block.

5. The electric wheelchair drive motor noise detection device according to claim 4, characterized in that: The docking assembly includes a first guide rod, a first spring, a first pneumatic rod, a clamping plate, and a connecting rod. Two first guide rods are inserted into the connecting rod. The first guide rods are connected to the top surface of the second support plate. A first spring is sleeved on the outer wall of the first guide rod. The first spring is located at the bottom of the connecting rod. A first pneumatic rod is inserted and fixed at both ends of the connecting rod. The telescopic end of the pneumatic rod is connected to the clamping plate. A slot is opened on the bottom surface of the first partition plate. The connecting rod descends through the first partition plate and is inserted into the slot.

6. The electric wheelchair drive motor noise detection device according to claim 5, characterized in that: The second support plate has a fixed insert on its top surface. The insert is located at the bottom of the connecting rod. The top surface of the insert is a semi-circular groove structure. The insert is inserted into the slot by descending through the first partition.

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