An interior trim wear testing device

Abstract

The application relates to the field of automobile decoration part detection, in particular to an interior part wear resistance testing device. The technical problem to be solved is to provide an interior part wear resistance testing device capable of simulating a use scene. The technical scheme is as follows: an interior part wear resistance testing device comprises a support frame, a motor, a disc, a positioning friction mechanism and a pressing mechanism, the upper portion of the support frame is connected with the motor through screws, the output shaft bottom of the motor is connected with the disc, the lower portion of the disc is provided with the positioning friction mechanism between the support frame, the positioning friction mechanism is provided with the pressing mechanism. The motor controls the rotation of the disc, so that the friction disc revolves on the steering wheel, meanwhile, the friction disc rotates under the cooperation of the shifting lever and the L-shaped fixing rod, and the pressing part rubs and presses the horn switch, so that the whole process of using the steering wheel can be simulated, and the wear resistance detection of the steering wheel is strengthened.

Description

Technical Field

[0001] This invention relates to the field of automotive trim testing, and more particularly to a wear resistance testing device for interior trim parts. Background Technology

[0002] There are many interior parts inside a car. With frequent use, these parts are subjected to friction. In order to test the wear resistance of these interior parts, they need to be removed and tested using a testing device.

[0003] Patent publication number CN212872053U discloses an automotive interior parts wear resistance testing device, including a control cabinet, a support frame, a worktable, a friction cloth drive cylinder, an automotive interior parts fixing seat, a friction cloth, an upper connector, a lower connector, and a gravity load. The worktable is mounted on the support frame, and a working inclined surface is provided on the worktable. The friction cloth drive cylinder is inclined on the working inclined surface along the inclined direction, and the cylinder rod of the friction cloth drive cylinder extends downward along the inclined direction of the working inclined surface. The automotive interior parts fixing seat is located on the working inclined surface and below the friction cloth drive cylinder.

[0004] When using the aforementioned automotive interior parts abrasion resistance testing equipment to test the abrasion resistance of interior parts, the friction cloth can be removed first, then the interior parts can be fixed on the mounting base, and then the friction cloth can be laid on the interior parts. The interior parts can then be continuously rubbed by the continuous movement of the friction cloth, thereby achieving the abrasion resistance test of the interior parts. However, testing with the friction cloth cannot simulate the usage scenario, resulting in inaccurate testing. Now, a wear resistance testing device for interior parts that can simulate the usage scenario is being developed. Summary of the Invention

[0005] To overcome the shortcomings of existing wear resistance testing equipment that cannot simulate usage scenarios, the technical problem to be solved is to provide an interior parts wear resistance testing device that can simulate usage scenarios.

[0006] The technical solution is: an interior parts wear resistance testing device, including a support frame, a motor, a disc, a positioning friction mechanism and a pressing mechanism. The upper part of the support frame is connected to the motor by screws, the bottom of the motor's output shaft is connected to the disc, the lower part of the disc and the support frame are provided with a positioning friction mechanism, and the positioning friction mechanism is provided with a pressing mechanism.

[0007] Further, the positioning friction mechanism comprises a rotating table, clamping rods, first tension springs, L-shaped fixing rods, a threaded rod, a connecting piece, a movable sleeve and a friction disc, the rotating table is rotationally connected to the middle of the lower part of the support frame, the three clamping rods are uniformly and slidably connected to the upper part of the rotating table along the circumferential direction, the first tension springs are connected between the clamping rods and the rotating table, the three L-shaped fixing rods are uniformly and fixedly connected to the lower part of the support frame along the circumferential direction, the threaded rod is welded to the right lower part of the disc, the movable sleeve is threadedly connected to the lower part of the threaded rod, the connecting piece is rotationally connected to the outside of the movable sleeve, the friction disc is rotationally connected to the lower part of the connecting piece, the three push rods are uniformly and fixedly connected to the friction disc along the circumferential direction, and the push rods are in extrusion fit with the L-shaped fixing rods.

[0008] Further, the pressing mechanism comprises a fixing piece, a guide rod, a pressing piece, second tension springs, a first sliding rail, a sliding block, an inclined rod and a return spring, the guide rod is welded to the right lower part of the disc, the fixing piece is welded to the left part of the connecting piece, the guide rod is slidably connected to the fixing piece, the pressing piece is slidably connected to the fixing piece, the second tension springs are connected between the lower part of the pressing piece and the bottom of the fixing piece, the first sliding rail is welded to the left upper part of the fixing piece, the sliding block is slidably connected to the upper part of the first sliding rail, the return spring is connected between the right part of the sliding block and the right inner wall of the first sliding rail, the inclined rod is connected to the top of the sliding block, the inclined rod is in extrusion fit with the upper part of the pressing piece, and the inclined rod is in extrusion fit with the support frame.

[0009] Further, the moving mechanism comprises a first guide wheel, a first pull rope, a second guide wheel, a second sliding rail, a first compression spring and a moving friction piece, the first guide wheel is rotationally connected to the rear middle part of the fixing piece, the second sliding rail is welded to the rear lower part of the pressing piece, the second guide wheel is rotationally connected to the rear part of the second sliding rail, the moving friction piece is slidably connected to the second sliding rail, the moving friction piece is slidably connected to the lower part of the pressing piece, the first compression spring is connected between the rear part of the moving friction piece and the rear inner wall of the second sliding rail, the first pull rope is connected to the rear part of the moving friction piece, the first pull rope passes out of the second sliding rail, the first pull rope passes around the second guide wheel and the first guide wheel, and the front upper part of the first pull rope is fixedly connected to the fixing piece.

[0010] Further, the reinforcing mechanism comprises a third sliding rail, a first friction plate, a second compression spring and an arc-shaped rod, the third sliding rail is welded to the left upper part of the support frame, the first friction plate is slidably connected to the right part of the third sliding rail, the first friction plate is in extrusion fit with the steering wheel, the second compression spring is connected between the top of the first friction plate and the top inner wall of the third sliding rail, the four arc-shaped rods are uniformly welded to the lower part of the rotating table along the circumferential direction, and the arc-shaped rods are in extrusion fit with the first friction plate.

[0011] Further, the opening mechanism is further included, the opening mechanism includes a circular slide, a limiting wheel, a second pull rope and a fixed block, the circular slide is rotatably connected to the outside of the rotating table, three fixed blocks are uniformly welded on the top of the circular slide along the circumferential direction, three groups of limiting wheels are uniformly rotatably connected to the rotating table along the circumferential direction, two limiting wheels are arranged in each group, the second pull rope is connected between the outer side of the clamping rod and the adjacent fixed block, and the second pull rope passes through the rotating table and passes around the limiting wheel.

[0012] Further, the simulation mechanism is further included, the simulation mechanism includes a fourth sliding rail, a second friction plate, a third compression spring and an arc-shaped block, the fourth sliding rail is welded to the front side of the lower part of the supporting frame, the second friction plate is slidably connected to the upper part of the fourth sliding rail, the second friction plate is in extrusion fit with the edge bottom of the steering wheel, the third compression spring is connected between the second friction plate and the fourth sliding rail, three arc-shaped blocks are uniformly connected to the top of the rotating table along the circumferential direction, and the arc-shaped blocks are in extrusion fit with the second friction plate.

[0013] Further, a plurality of one-way grooves are formed in the bottom of the pressing piece.

[0014] The present application has the following advantages: 1, the motor controls the rotation of the disc, so that the friction disc revolves on the steering wheel, and under the cooperation of the pull rod and the L-shaped fixed rod, the friction disc rotates, and the pressing piece rubs and presses the horn switch, so that the whole process of using the steering wheel can be simulated, and the wear detection of the steering wheel is strengthened.

[0015] 2, the second sliding rail and the second guide wheel are driven downward by the pressing piece, under the action of the first pull rope, the moving friction piece is moved backward to strengthen the wear detection of the horn switch, so that a more realistic scene is simulated.

[0016] 3, the first friction plate is intermittently extruded by the arc-shaped rod, so that the first friction plate moves up and down to strengthen the friction on the edge of the steering wheel, and the wear detection scene of the steering wheel is more realistic.

[0017] 4, the second pull rope drives the clamping rod by rotating the circular slide, so that the clamping rod is conveniently fixed to the steering wheel.

[0018] 5, the second friction plate is extruded and matched between the arc-shaped block and the second friction plate, so that the second friction plate continuously rubs the edge of the bottom of the steering wheel, improves the simulation authenticity, and strengthens the wear test. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic view of the present application.

[0020] Figure 2 It is a three-dimensional structure schematic view of the positioning friction mechanism of the present application.

[0021] Figure 3 Fig. 1 is a perspective view of the first part of the positioning friction mechanism of the present application.

[0022] Figure 4 Fig. 2 is a perspective view of the second part of the positioning friction mechanism of the present application.

[0023] Figure 5 Fig. 3 is a perspective view of the down mechanism of the present application.

[0024] Figure 6 Fig. 4 is a perspective view of the part of the down mechanism of the present application.

[0025] Figure 7 Fig. 5 is a perspective view of the part of the down mechanism of the present application.

[0026] Figure 8 Fig. 6 is a perspective view of the moving mechanism of the present application.

[0027] Figure 9 Fig. 7 is a perspective view of the moving mechanism of the present application.

[0028] Figure 10 Fig. 8 is a perspective view of the reinforcing mechanism of the present application.

[0029] Figure 11 Fig. 9 is a perspective view of the part of the reinforcing mechanism of the present application.

[0030] Figure 12 Fig. 10 is a perspective view of the opening mechanism of the present application.

[0031] Figure 13 Fig. 11 is a perspective view of the opening mechanism of the present application.

[0032] Figure 14 Fig. 12 is a perspective view of the simulation mechanism of the present application.

[0033] Figure 15 Fig. 13 is a perspective view of the simulation mechanism of the present application.

[0034] : 1 support frame, 2 motor, 3 disc, 4 positioning friction mechanism, 41 turntable, 42 clamping rod, 43 first extension spring, 44 L-shaped fixed rod, 45 steering wheel, 46 threaded rod, 47 connecting piece, 48 sleeve, 49 friction disc, 5 pressing mechanism, 51 fixed piece, 52 guide rod, 53 pressing piece, 54 second extension spring, 55 first sliding rail, 56 sliding block, 57 inclined rod, 58 return spring, 6 moving mechanism, 61 first guide wheel, 62 first pull rope, 63 second guide wheel, 64 second sliding rail, 65 first compression spring, 66 moving friction piece, 7 reinforcing mechanism, 71 third sliding rail, 72 first friction plate, 73 second compression spring, 74 arc-shaped rod, 8 opening mechanism, 81 circular sliding piece, 82 limiting wheel, 83 second pull rope, 84 fixed block, 9 simulation mechanism, 91 fourth sliding rail, 92 second friction plate, 93 third compression spring, 94 arc-shaped block. DETAILED DESCRIPTION

[0035] Reference herein to an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase that in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combinable with other embodiments.

[0036] Embodiment 1

[0037] An interior part wear resistance testing device, as shown in Figure 1 , includes a support frame 1, a motor 2, a disc 3, a positioning friction mechanism 4, and a pressing mechanism 5. The upper part of the support frame 1 is connected with the motor 2 through screws. The bottom of the output shaft of the motor 2 is connected with the disc 3. The lower part of the disc 3 and the support frame 1 are provided with the positioning friction mechanism 4. Through the positioning friction mechanism 4, the interior part can be simulated to rub the interior part by hand. The positioning friction mechanism 4 is provided with the pressing mechanism 5. Through the pressing mechanism 5, the middle part of the interior part can be pressed for testing.

[0038] As shown in Figures 1-4As shown, the positioning friction mechanism 4 comprises a rotating table 41, a clamping rod 42, a first tension spring 43, an L-shaped fixed rod 44, a threaded rod 46, a connecting piece 47, a sleeve 48 and a friction disc 49, the rotating table 41 is rotatably connected to the middle of the lower part of the support frame 1, three clamping rods 42 for clamping the steering wheel 45 are uniformly and slidably connected to the upper part of the rotating table 41 along the circumferential direction, the first tension spring 43 is connected between the clamping rod 42 and the rotating table 41, three L-shaped fixed rods 44 are uniformly connected to the lower part of the support frame 1 along the circumferential direction, the threaded rod 46 is welded to the right lower part of the disc 3, the sleeve 48 is threadedly connected to the lower part of the threaded rod 46, the connecting piece 47 is rotatably connected to the outside of the sleeve 48, the friction disc 49 is rotatably connected to the lower part of the connecting piece 47, three push rods are uniformly connected to the friction disc 49 along the circumferential direction, the push rods are in extrusion fit with the L-shaped fixed rods 44, the disc 3 is rotated to drive the friction disc 49 to rotate through the threaded rod 46, so as to test the upper part of the steering wheel 45, and simulate the scene of rubbing the steering wheel 45 with hands.

[0039] As shown in Figure 1 , Figure 5 , Figure 6 and Figure 7 , the pressing mechanism 5 comprises a fixed piece 51, a guide rod 52, a pressing piece 53, a second tension spring 54, a first sliding rail 55, a sliding block 56, an inclined rod 57 and a return spring 58, the guide rod 52 is welded to the right lower part of the disc 3, the fixed piece 51 is welded to the left part of the connecting piece 47, the guide rod 52 and the fixed piece 51 are in sliding fit, the pressing piece 53 is slidably connected to the fixed piece 51, a plurality of linear grooves are formed in the bottom of the pressing piece 53, the linear grooves in the bottom of the pressing piece 53 can make the friction force of the pressing piece 53 on the horn switch larger, so that the wear resistance test effect is better, the second tension spring 54 is connected between the bottom of the fixed piece 51 and the lower part of the pressing piece 53 and is wound on the pressing piece 53, the first sliding rail 55 is welded to the upper left part of the fixed piece 51, the sliding block 56 is slidably connected to the upper part of the first sliding rail 55, the return spring 58 is connected between the right part of the sliding block 56 and the right wall in the first sliding rail 55, the inclined rod 57 is connected to the top of the sliding block 56, the inclined rod 57 is in extrusion fit with the upper part of the pressing piece 53 and the support frame 1, after the inclined rod 57 contacts the support frame 1, the inclined rod 57 will extrude the pressing piece 53, and the pressing piece 53 can press the steering wheel 45 to simulate the scene of pressing the horn of the steering wheel 45 with hands.

[0040] The steering wheel 45 is a kind of interior trim, when people need to test the wear resistance of the interior trim, the steering wheel 45 can be placed on the turntable 41, under the action of the first extension spring 43, the clamping rod 42 can fix the steering wheel 45, then according to the thickness of the steering wheel 45, the height of the friction disc 49 can be adjusted, the movable sleeve 48 moves up and down on the threaded rod 46, the movable sleeve 48 drives the connecting piece 47 to move up and down, the connecting piece 47 drives the friction disc 49 to move up and down, the friction disc 49 will be in close contact with the top of the steering wheel 45, then the simulation of the hand using and rubbing the steering wheel 45 can be started, then the motor 2 can be started, the output shaft of the motor 2 rotates to drive the disc 3 to rotate, the disc 3 rotates to drive the threaded rod 46, the connecting piece 47 and the friction disc 49 to revolve, the friction disc 49 drives the steering wheel 45 to rotate, the friction disc 49 drives the push rod to rotate, when the push rod and the L-shaped fixed rod 44 are in extrusion contact, the push rod drives the friction disc 49 to rotate, the friction disc 49 rotates on the top of the steering wheel 45, which can simulate the friction generated when the hand rotates the steering wheel 45, when the connecting piece 47 revolves, the fixed piece 51 and the pressing piece 53 are driven to rotate, under the action of the reset spring 58, the lower part of the pressing piece 53 keeps in close contact with the horn switch of the steering wheel 45, and the rotation of the pressing piece 53 can rub the horn switch, the fixed piece 51 drives the first sliding rail 55 and the inclined rod 57 to rotate, when the inclined rod 57 contacts the right part of the support frame 1, the inclined rod 57 drives the sliding block 56 to move inward, and the second extension spring 54 is compressed, when the inclined rod 57 moves inward to contact the pressing piece 53, the pressing piece 53 moves downward, the reset spring 58 is stretched, and the pressing piece 53 moves downward to press the horn switch, so as to simulate the scene of pressing the horn switch with the hand, when the inclined rod 57 and the right part of the support frame 1 are separated, under the action of the second extension spring 54, the sliding block 56 and the inclined rod 57 move outward to reset, the inclined rod 57 moves outward to release the pressing piece 53, under the action of the second extension spring 54, the pressing piece 53 moves upward to reset and no longer presses the horn switch, after the test is completed, the motor 2 is turned off, and the above operation is repeated, so that the friction disc 49 revolves to simulate the friction generated when the hand holds the steering wheel 45, the friction disc 49 rotates to simulate the friction generated when the hand rotates the steering wheel 45, the pressing piece 53 rotates and presses the horn switch of the steering wheel 45, so as to simulate the scene of pressing and rubbing the horn switch with the hand, which can more accurately test the wear resistance of the steering wheel 45, and the steering wheel 45 can be taken off after the test.

[0041] Embodiment 2

[0042] On the basis of embodiment 1, as Figure 1 、 Figure 8 and Figure 9As shown, it also includes a moving mechanism 6 capable of increasing friction, the moving mechanism 6 includes a first guide wheel 61, a first pull rope 62, a second guide wheel 63, a second sliding rail 64, a first compression spring 65 and a moving friction piece 66, the first guide wheel 61 is rotatably connected to the rear middle of the fixed part 51, the second sliding rail 64 is welded to the lower rear side of the pressing part 53, the second guide wheel 63 is rotatably connected to the rear of the second sliding rail 64, the moving friction piece 66 is slidably connected in the second sliding rail 64 for friction on the horn switch of the steering wheel 45, the lower part of the moving friction piece 66 is slidably connected with the lower part of the pressing part 53, the first compression spring 65 is connected between the rear of the moving friction piece 66 and the rear wall in the second sliding rail 64, the first pull rope 62 is connected to the rear of the moving friction piece 66, the rear of the first pull rope 62 passes out of the second sliding rail 64, the first pull rope 62 passes around the second guide wheel 63 and the first guide wheel 61, and the front upper part of the first pull rope 62 is fixedly connected with the fixed part 51. The downward movement of the pressing part 53 drives the downward movement of the second sliding rail 64 and the second guide wheel 63, and under the action of the first pull rope 62, the moving friction piece 66 moves backward, the first compression spring 65 is compressed, and the backward movement of the moving friction piece 66 can enhance the friction on the horn switch, making the simulation more realistic and improving the wear resistance test. When the pressing part 53 moves upward, it drives the upward movement of the second sliding rail 64 and the second guide wheel 63, and under the action of the first compression spring 65, it drives the forward movement of the moving friction piece 66 to reset.

[0043] When the pressing part 53 moves downward, it drives the downward movement of the second sliding rail 64 and the second guide wheel 63, and under the action of the first pull rope 62, the moving friction piece 66 moves backward, the first compression spring 65 is compressed, and the backward movement of the moving friction piece 66 can enhance the friction on the horn switch, making the simulation more realistic and improving the wear resistance test. When the pressing part 53 moves upward, it drives the upward movement of the second sliding rail 64 and the second guide wheel 63, and under the action of the first compression spring 65, it drives the forward movement of the moving friction piece 66 to reset.

[0044] As shown in Figure 1 , Figure 10 and Figure 11 , it also includes a reinforcing mechanism 7 for enhancing the friction on the periphery of the steering wheel 45, the reinforcing mechanism 7 includes a third sliding rail 71, a first friction plate 72, a second compression spring 73 and an arc-shaped rod 74, the third sliding rail 71 is welded to the upper left of the support frame 1, the first friction plate 72 is slidably connected to the right of the third sliding rail 71, the first friction plate 72 is in extrusion fit with the steering wheel 45, the second compression spring 73 is connected between the top of the first friction plate 72 and the inner top wall of the third sliding rail 71, and four arc-shaped rods 74 are evenly welded to the lower part of the turntable 41 along the circumferential direction, the arc-shaped rods 74 are in extrusion fit with the first friction plate 72, the arc-shaped rods 74 rotate under the driving of the turntable 41, and the arc-shaped rods 74 extrude the first friction plate 72, and the first friction plate 72 moves upward to friction on the edge of the steering wheel 45.

[0045] The rotating table 41 drives the arc-shaped rod 74 to rotate. When the arc-shaped rod 74 rotates and the first friction plate 72 is pressed, the first friction plate 72 is driven to move upwards, and the second compression spring 73 is compressed. When the arc-shaped rod 74 rotates and the first friction plate 72 is separated, the first friction plate 72 is driven to move downwards to reset under the action of the second compression spring 73. The intermittent up-and-down movement of the first friction plate 72 can rub the edge of the steering wheel 45, so that the scene of the wear resistance detection of the steering wheel 45 is more realistic.

[0046] As shown in Figure 1 , Figure 12 and Figure 13 , the opening mechanism 8 is further included to facilitate the placement of the steering wheel 45 on the rotating table 41. The opening mechanism 8 includes a circular slide 81, a limiting wheel 82, a second pull rope 83, and a fixed block 84. The circular slide 81 is rotatably connected to the outside of the rotating table 41. Three fixed blocks 84 are uniformly welded on the top of the circular slide 81 along the circumferential direction. Three sets of limiting wheels 82 are uniformly rotatably connected to the rotating table 41 along the circumferential direction, and each set includes two limiting wheels 82. The second pull rope 83 is connected between the outside of the clamping rod 42 and the adjacent fixed block 84. The second pull rope 83 passes through the rotating table 41 and passes around the limiting wheel 82. By rotating the circular slide 81 to pull the second pull rope 83, the clamping rod 42 is moved outward.

[0047] Initially, the three clamping rods 42 are kept in a state of moving inward. If it is necessary to fix the steering wheel 45, the circular slide 81 can be rotated to pull the second pull rope 83, so that the second pull rope 83 drives the clamping rod 42 to move outward. In this way, the steering wheel 45 is placed between the clamping rods 42, and then the circular slide 81 is released. The clamping rod 42 then fixes the steering wheel 45.

[0048] As shown in Figure 1 , Figure 14 and Figure 15 , the simulation mechanism 9 is further included. The simulation mechanism 9 includes a fourth sliding rail 91, a second friction plate 92, a third compression spring 93, and an arc-shaped block 94. The fourth sliding rail 91 is welded to the front side of the lower left part of the support frame 1. The second friction plate 92 is slidably connected to the upper part of the fourth sliding rail 91. The second friction plate 92 is in pressing cooperation with the edge of the bottom of the steering wheel 45. The third compression spring 93 is connected between the second friction plate 92 and the fourth sliding rail 91. Three arc-shaped blocks 94 are uniformly connected to the top of the rotating table 41 along the circumferential direction. The arc-shaped block 94 is in pressing cooperation with the second friction plate 92. The rotating table 41 drives the arc-shaped block 94 to rotate. The arc-shaped block 94 intermittently presses the second friction plate 92, so that the second friction plate 92 intermittently rubs the bottom of the steering wheel 45.

[0049] When the arc-shaped block 94 is driven to rotate by the rotating table 41, the second friction plate 92 is driven to move outward when the arc-shaped block 94 contacts the second friction plate 92, and the third compression spring 93 is compressed. When the arc-shaped block 94 and the second friction plate 92 are separated, the second friction plate 92 is driven to move inward to reset under the action of the third compression spring 93. The second friction plate 92 continuously moves to strengthen the friction of the bottom edge of the steering wheel 45, thereby improving the simulation authenticity.

[0050] The above description is only an example of the present application and is not intended to limit the present application. Any equivalent replacement within the principles of the present application shall be included in the protection scope of the present application. The contents not described in detail in the present application belong to the prior art known to those skilled in the art.

Claims

1. A wear resistance testing device for interior parts, characterized in that: It includes a support frame (1), a motor (2), a disc (3), a positioning friction mechanism (4), and a pressing mechanism (5). The upper part of the support frame (1) is connected to the motor (2) by screws. The bottom of the output shaft of the motor (2) is connected to the disc (3). The lower part of the disc (3) and the support frame (1) are provided with a positioning friction mechanism (4). The positioning friction mechanism (4) is provided with a pressing mechanism (5). The positioning friction mechanism (4) includes a turntable (41), clamping rods (42), a first tension spring (43), an L-shaped fixing rod (44), a threaded rod (46), a connector (47), a loose sleeve (48), and a friction disc (49). The turntable (41) is rotatably connected to the lower middle part of the support frame (1). Three clamping rods (42) are uniformly slidably connected to the upper part of the turntable (41) along the circumferential direction. A first tension spring is connected between each clamping rod (42) and the turntable (41). 43), the support frame (1) has three L-shaped fixing rods (44) evenly connected along the circumferential direction at the lower part, the disc (3) has a threaded rod (46) welded to the lower right part, the threaded rod (46) has a loose sleeve (48) threadedly connected to the lower part, the loose sleeve (48) has a connecting piece (47) rotatingly connected to the outside, the connecting piece (47) has a friction disc (49) rotatingly connected to the lower part, the friction disc (49) has three levers evenly connected along the circumferential direction, the levers and the L-shaped fixing rods (44) are pressed together; The pressing mechanism (5) includes a fixing member (51), a guide rod (52), a pressing member (53), a second tension spring (54), a first slide rail (55), a slider (56), a diagonal rod (57), and a return spring (58). The guide rod (52) is welded to the lower right part of the disc (3), and the fixing member (51) is welded to the left part of the connector (47). The guide rod (52) and the fixing member (51) are slidably connected. The pressing member (53) is slidably connected to the fixing member (51). The lower part of the pressing member (53) and the fixing member (54) are connected to the fixing member (55). A second tension spring (54) is connected between the bottom of the component (51) and wound around the lower pressure component (53). A first slide rail (55) is welded to the upper left of the fixed component (51). A slider (56) is slidably connected to the upper part of the first slide rail (55). A return spring (58) is connected between the right side of the slider (56) and the inner right wall of the first slide rail (55). A diagonal rod (57) is connected to the top of the slider (56). The diagonal rod (57) and the upper part of the lower pressure component (53) are pressed together. The diagonal rod (57) and the support frame (1) are pressed together.

2. The wear resistance testing device for interior parts according to claim 1, characterized in that: It also includes a moving mechanism (6), which includes a first guide wheel (61), a first pull rope (62), a second guide wheel (63), a second slide rail (64), a first compression spring (65), and a moving friction element (66). The first guide wheel (61) is rotatably connected to the middle of the rear part of the fixed part (51). The second slide rail (64) is welded to the rear side of the lower part of the pressing part (53). The second guide wheel (63) is rotatably connected to the rear part of the second slide rail (64). The moving friction element (66) is slidably connected inside the second slide rail (64). The moving friction element (66) is slidably connected to the lower part of the moving friction element (66) and the lower part of the pressing element (53). A first compression spring (65) is connected between the rear part of the moving friction element (66) and the inner rear wall of the second slide rail (64). A first pull rope (62) is connected to the rear part of the moving friction element (66). The rear part of the first pull rope (62) passes through the second slide rail (64). The first pull rope (62) passes around the second guide wheel (63) and the first guide wheel (61). The upper front part of the first pull rope (62) is fixedly connected to the fixing element (51).

3. The wear resistance testing device for interior parts according to claim 2, characterized in that: It also includes a reinforcing mechanism (7), which includes a third slide rail (71), a first friction plate (72), a second compression spring (73), and an arc rod (74). The third slide rail (71) is welded to the upper left of the support frame (1), and the first friction plate (72) is slidably connected to the right side of the third slide rail (71). The first friction plate (72) and the steering wheel (45) are pressed together. The second compression spring (73) is connected between the top of the first friction plate (72) and the inner top wall of the third slide rail (71). Four arc rods (74) are evenly welded along the circumferential direction at the lower part of the turntable (41). The arc rods (74) and the first friction plate (72) are pressed together.

4. The wear resistance testing device for interior parts according to claim 3, characterized in that: It also includes an opening mechanism (8), which includes a circular slide (81), a limiting wheel (82), a second pull rope (83), and a fixing block (84). The circular slide (81) is rotatably connected to the outside of the turntable (41). Three fixing blocks (84) are evenly welded to the top of the circular slide (81) along the circumferential direction. The turntable (41) is evenly rotatably connected to three sets of limiting wheels (82) along the circumferential direction. Each set is provided with two limiting wheels (82). The second pull rope (83) is connected between the outside of the clamping rod (42) and the adjacent fixing block (84). The second pull rope (83) passes through the turntable (41) and goes around the limiting wheel (82).

5. The wear resistance testing device for interior parts according to claim 4, characterized in that: It also includes a simulation mechanism (9), which includes a fourth slide rail (91), a second friction plate (92), a third compression spring (93) and an arc block (94). The fourth slide rail (91) is welded to the front side of the lower left part of the support frame (1). The second friction plate (92) is slidably connected to the upper part of the fourth slide rail (91). The second friction plate (92) and the bottom edge of the steering wheel (45) are pressed together. The third compression spring (93) is connected between the second friction plate (92) and the fourth slide rail (91). Three arc blocks (94) are evenly connected along the circumferential direction on the top of the turntable (41). The arc blocks (94) and the second friction plate (92) are pressed together.

6. The wear resistance testing device for interior parts according to claim 5, characterized in that: The bottom of the pressing part (53) has multiple slots.

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