Automobile seat armrest rotation durability testing device

Abstract

The utility model provides an automobile seat armrest rotation durability testing device, which relates to the technical field of automobile accessory testing devices, and comprises a lifting mechanism, a seat armrest rotation driving assembly, a circular plate, a cross beam, a first wedge-shaped chute, a U-shaped frame, a cam driving structure, a cam and an automobile seat, according to the device, the rotating cam is used for extruding the rear end of the rotatably arranged cross beam to turn over up and down, the cross beam turns over to drive the U-shaped frame and the turnover armrest of the automobile seat to turn over up and down, rotation is achieved through cam transmission, the actual using state of the armrest is simulated, automatic testing is achieved, manual testing of technicians is replaced, and the testing efficiency is improved. Coherent rotation of the handrail is achieved, the stroke running speed and the stroke range are controllable, experimental errors are avoided, direct operation of technicians is not needed, and durability testing under high and low temperature conditions can be conveniently carried out in an environment box.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories testing devices, in particular to a rotation durability testing device for an automobile seat armrest. Background Art

[0002] In the prior art, when conducting durability tests on car seat armrests, technicians usually simulate the usage status to conduct simulation tests. This can neither guarantee the travel speed nor the accuracy of the travel, there are large experimental errors, and it is not convenient to enter the environmental chamber to conduct durability tests under high and low temperature conditions. Utility Model Content

[0003] The purpose of the utility model is to provide a rotation durability testing device for automobile seat armrests, which has the advantages of controllable stroke running speed and stroke range, avoiding experimental errors, and facilitating entry into an environmental chamber to perform durability tests under high and low temperature conditions. It solves the technical problems in the prior art of manual durability testing of automobile seat armrests, such as large experimental errors and inconvenience in entering an environmental chamber to perform durability tests under high and low temperature conditions.

[0004] The utility model provides a vehicle seat armrest rotation durability testing device, comprising:

[0005] The lifting mechanism, whose movable part is fixedly equipped with a seat armrest rotation drive assembly, includes:

[0006] A circular plate, the axis of which is fixedly mounted on the movable part of the lifting mechanism;

[0007] A crossbeam is rotatably mounted on the middle portion of the circular plate away from the lifting mechanism, and a first wedge-shaped sliding groove is provided along the length direction of the crossbeam away from the lifting mechanism;

[0008] A U-shaped frame is slidingly assembled in an interference fit manner in the first wedge-shaped sliding groove;

[0009] The rear end of the circular plate away from the lifting mechanism is equipped with a cam driving structure, and a cam is provided on the rotating end thereof;

[0010] The outer wall of the cam is in contact with the rear end of the beam, and the rear end surface of the beam is an arc surface;

[0011] The rotation of the cam causes the rear end of the crossbeam to flip up and down;

[0012] a car seat with a flip-up armrest;

[0013] The U-shaped frame is sleeved on the outer front end of the flip armrest of the car seat, and the flipping of the crossbeam drives the U-shaped frame and the flip armrest of the car seat to flip up and down.

[0014] As a further optimization solution, in order to utilize the eccentric rotation of the cam to drive the rear end of the crossbeam to flip within the cam rotation angle, thereby driving the flip armrest of the car seat to flip up and down, the cam drive structure includes:

[0015] A drive motor is fixedly mounted on the rear end of the circular plate away from the lifting mechanism, and a rotating shaft of the drive motor passes through the circular plate;

[0016] A first screw is fixedly connected to the middle portion of the end surface of the rotating shaft of the driving motor;

[0017] The cam is sleeved on the outside of the first screw;

[0018] A first fixing nut is screwed onto the first screw rod, and the cam is clamped between the first fixing nut and the end face of the rotating shaft of the driving motor.

[0019] As a further optimization solution, in order to adjust the height of the seat armrest rotation drive assembly, suitable for car seats of different heights, the lifting mechanism includes:

[0020] A mounting frame with cross plates on its upper and lower edges;

[0021] A second screw is screwed to the middle of the upper end of the mounting frame, and the lower end of the second screw is rotatably assembled on the bottom surface of the inner cavity of the mounting frame;

[0022] The outer wall of the second screw is screwed with a mounting block, and the outer wall of the mounting block is slidably fitted with the inner wall of the mounting frame;

[0023] The mounting block is fixedly assembled with a connecting column on one side close to the car seat;

[0024] The axis of the circular plate is fixedly assembled on one end of the connecting column close to the car seat.

[0025] As a further optimization solution, in order to control the rotation angle of the cam, it also includes:

[0026] a control cabinet electrically connected to the cam drive structure;

[0027] The control cabinet controls the cam driving structure to drive the rotation angle of the cam.

[0028] As a further optimization solution, in order to facilitate the installation and fixation of the car seat, it also includes:

[0029] a lifting mechanism mounting base and a first base plate, wherein the lifting mechanism mounting base is arranged parallel to the car seat;

[0030] The first base plate is fixedly assembled at the lower end of the lifting mechanism;

[0031] The lifting mechanism mounting seat includes:

[0032] Rectangular block, the upper and lower edges of its front and rear side walls are integrally formed with strip ribs;

[0033] A G-shaped clamp is clamped between the front and rear ends of the first bottom plate and the upper strip retaining edge on the same side.

[0034] As a further optimization solution, in order to facilitate the horizontal adjustment of the distance between the lifting mechanism and the car seat, a second wedge-shaped sliding groove is opened in the middle of the upper surface of the rectangular block along the length direction;

[0035] A first wedge-shaped sliding block matching the second wedge-shaped sliding groove is fixedly mounted on the bottom surface of the first base plate, and the first base plate is slidably mounted in the second wedge-shaped sliding groove through the first wedge-shaped sliding block.

[0036] As a further optimization solution, in order to strengthen the fixed connection strength between the lifting mechanism and the first bottom plate, triangular reinforcement ribs are fixedly installed between the outer wall of the lifting mechanism and the upper surface of the first bottom plate.

[0037] As a further optimization solution, in order to facilitate the installation and fixation of the car seat, it also includes:

[0038] A car seat mount comprising:

[0039] The second bottom plate has connecting blocks fixedly mounted at the four corners of its upper surface;

[0040] The left and right sides of the lower end of the car seat are provided with fixed beams, and the fixed beams are fixedly connected to the upper ends of the connecting blocks on the same sides by bolts;

[0041] The lower ends of the automobile seat mounting seat and the lifting mechanism mounting seat are equipped with sliding mounting platforms.

[0042] As a further optimization solution, in order to fix the relative positions of the car seat mounting base and the lifting mechanism mounting base, the sliding mounting platform includes:

[0043] A rectangular base, the upper surface of which is evenly provided with third wedge-shaped sliding grooves along the width direction;

[0044] Second wedge-shaped sliders are slidably engaged in the third wedge-shaped chute at the four corners of the bottom surface of the corresponding car seat mounting seat and the lifting mechanism mounting seat;

[0045] A connecting and fixing structure is assembled between the front and rear edges of the automobile seat mounting seat and the lifting mechanism mounting seat and the upper ends of the corresponding second wedge-shaped sliding blocks.

[0046] As a further optimization solution, in order to detachably fix the car seat mounting base and the lifting mechanism mounting base on the sliding mounting platform, so as to facilitate the fixation of the entire device and facilitate the overall entry into the environmental chamber, the connection and fixing structure includes:

[0047] Eight arc-shaped plates are provided corresponding to the second wedge-shaped sliders;

[0048] A mounting groove is provided in the middle of the upper surface of the arc-shaped plate along the length direction, and a strip-shaped through hole is provided in the middle of the mounting groove along the length direction;

[0049] A third screw rod passes through the strip-shaped through hole, and the lower end of the third screw rod is fixedly connected to the upper end of the corresponding second wedge-shaped sliding block;

[0050] The upper end of the outer wall of the third screw is screwed with a second fixing nut, and the lower end of the second fixing nut abuts against the bottom surface of the installation groove;

[0051] One end of the arc plate abuts against the upper surface of the rectangular base, and the other end of the arc plate abuts against the upper surfaces of corresponding edges of the car seat mounting seat and the lifting mechanism mounting seat.

[0052] The present invention provides an improved vehicle seat armrest rotation durability test device, which has the following improvements and advantages compared with the prior art:

[0053] The device drives the seat armrest rotation drive assembly through the lifting mechanism to adjust the height to match the car seat height. The cam is driven by the cam drive structure of the seat armrest rotation drive assembly to rotate the cam. The rotating cam is used to squeeze and rotate the rear end of the beam to flip it up and down. The flipping of the beam drives the U-shaped frame and the flippable armrest of the car seat to flip up and down. The rotation action is realized through the cam transmission to simulate the actual use state of the armrest, realize automated testing, replace manual testing by technicians, and realize continuous rotation of the armrest. The stroke running speed and stroke range are controllable to avoid experimental errors. No direct operation by technicians is required, and it is convenient to enter the environmental chamber for durability testing under high and low temperature conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0055] Figure 1 This is a schematic diagram of the structure of the utility model;

[0056] Figure 2 This is a schematic diagram of the assembly structure of the lifting mechanism, the seat armrest rotation drive assembly and the lifting mechanism mounting base of the utility model;

[0057] Figure 3This is a structural diagram of the cam drive structure of the present invention;

[0058] Figure 4 This is a structural diagram of the car seat mounting base of the utility model;

[0059] Figure 5 For this utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0060] Description of reference numerals:

[0061] 1-triangular reinforcement, 11-sliding mounting platform, 111-rectangular base, 112-third wedge-shaped slide, 113-second wedge-shaped slider, 2-seat armrest rotation drive assembly, 21-circular plate, 22-crossbeam, 23-first wedge-shaped slide, 24-U-shaped frame, 25-cam drive structure, 251-drive motor, 252-first screw, 253-cam, 254-first fixing nut, 3-car seat mounting base, 31-second bottom plate, 32-connecting block, 33 -Fixed beam, 4-Car seat, 5-Lifting mechanism mounting seat, 51-Rectangular block, 52-Strip rib, 53-Second wedge-shaped slide, 54-First wedge-shaped slider, 6-First base plate, 7-G-shaped clamp, 8-Lifting mechanism, 81-Mounting frame, 82-Second screw, 83-Mounting block, 84-Connecting column, 9-Connecting and fixing structure, 91-Curved plate, 92-Mounting groove, 93-Strip through hole, 94-Third screw, 95-Second fixing nut, 10-Control cabinet. DETAILED DESCRIPTION

[0062] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0063] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0064] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0065] See also Figure 1-5 The utility model provides a technical solution: a car seat armrest rotation durability test device, comprising:

[0066] The lifting mechanism 8, whose movable part is fixedly equipped with the seat armrest rotation drive assembly 2, includes:

[0067] The circular plate 21 has its axis fixedly mounted on the movable portion of the lifting mechanism 8;

[0068] The lifting mechanism 8 can adjust the height of the seat armrest rotation drive assembly 2 and is suitable for car seats 4 of different heights;

[0069] A crossbeam 22 is rotatably mounted on the middle portion of the circular plate 21 away from the lifting mechanism 8, and a first wedge-shaped sliding groove 23 is provided along the length direction of the crossbeam 22 away from the lifting mechanism 8.

[0070] A U-shaped frame 24 is slidingly assembled in an interference fit within the first wedge-shaped chute 23. The U-shaped frame 24 can slide within the first wedge-shaped chute 23 when subjected to sufficient external force. When the external force is removed, the U-shaped frame 24 is retained within the first wedge-shaped chute 23. During the reversal of the crossbeam 22, the U-shaped frame 24 remains sleeved on the outer side of the reversible armrest of the car seat 4 by sliding back and forth. The external force driving the U-shaped frame 24 to slide is provided by a cam drive structure 25.

[0071] The rear end of the circular plate 21 away from the lifting mechanism 8 is equipped with a cam drive structure 25, and a cam 253 is provided on the rotating end thereof;

[0072] The outer wall of the cam 253 fits with the rear end of the beam 22, and the rear end surface of the beam 22 is an arc surface;

[0073] The rotation of the cam 253 causes the rear end of the crossbeam 22 to flip up and down;

[0074] a car seat 4 having a reversible armrest;

[0075] The U-shaped frame 24 is sleeved on the outer side of the front end of the flip armrest of the car seat 4. The flipping of the crossbeam 22 drives the U-shaped frame 24 and the flip armrest of the car seat 4 to flip up and down. The rotation is realized through the cam 253 to simulate the actual use state of the armrest, realize automatic testing, replace the manual testing of technicians, and realize the coherent rotation of the armrest. The stroke running speed and stroke range are controllable to avoid experimental errors. There is no need for direct operation by technicians, which facilitates entering the environmental chamber for durability testing under high and low temperature conditions.

[0076] In some embodiments, in order to utilize the eccentric rotation of the cam 253 to drive the rear end of the crossbeam 22 to flip within the rotation angle of the cam 253, thereby driving the flip armrest of the car seat 4 to flip up and down, the cam driving structure 25 includes:

[0077] A drive motor 251 is fixedly mounted on the rear end of the circular plate 21 away from the lifting mechanism 8, and the shaft of the drive motor 251 passes through the circular plate 21;

[0078] A first screw 252 is fixedly connected to the middle portion of the end face of the rotating shaft of the driving motor 251;

[0079] The cam 253 is sleeved on the outer side of the first screw 252;

[0080] A first fixing nut 254 is screwed onto the first screw rod 252, and the cam 253 is clamped between the first fixing nut 254 and the end face of the rotating shaft of the driving motor 251. The driving motor 251 is connected to an external power supply, and the cam 253 is driven to rotate by the driving motor 251. The rotation angle is controlled by the control cabinet 10.

[0081] In some embodiments, in order to adjust the height of the seat armrest rotation drive assembly 2 for car seats 4 of different heights, the lifting mechanism 8 includes:

[0082] The mounting frame 81 has horizontal plates on its upper and lower edges;

[0083] A second screw rod 82 is screwed to the middle of the upper end of the mounting frame 81, and the lower end of the second screw rod 82 is rotatably assembled to the bottom surface of the inner cavity of the mounting frame 81;

[0084] The outer wall of the second screw rod 82 is screwed with a mounting block 83, and the outer wall of the mounting block 83 is slidably fitted with the inner wall of the mounting frame 81;

[0085] The mounting block 83 is fixedly assembled with a connecting post 84 on one side close to the car seat 4;

[0086] The axis of the circular plate 21 is fixedly assembled on the connecting post 84 near one end of the car seat 4 .

[0087] When in use, the second screw rod 82 is rotated to drive the mounting block 83 screwed thereon to move up and down along the second screw rod 82, thereby driving the seat armrest rotation drive assembly 2 to move up and down to adjust its height.

[0088] In some embodiments, in order to control the rotation angle of the cam 253, the following steps are further included:

[0089] A control cabinet 10 electrically connected to the cam drive structure 25;

[0090] The control cabinet 10 controls the cam drive structure 25 to drive the rotation angle of the cam 253. The control cabinet 10 controls the rotation angle of the rotating shaft of the drive motor 251 in the cam drive structure 25, thereby controlling the rotation angle of the cam 253. The control cabinet 10 automatically counts the number of rotations of the seat armrest in the fatigue test according to the number of rotations of the drive motor 251. This count can be connected to an external display for display.

[0091] In some embodiments, in order to facilitate the installation and fixation of the car seat 4, the following is further included:

[0092] A lifting mechanism mounting base 5 and a first base plate 6, wherein the lifting mechanism mounting base 5 is arranged parallel to the car seat 4;

[0093] The first base plate 6 is fixedly assembled on the lower end of the lifting mechanism 8;

[0094] The lifting mechanism mounting seat 5 includes:

[0095] The rectangular block 51 has strip-shaped ribs 52 integrally formed on the upper and lower edges of its front and rear side walls;

[0096] A G-shaped clamp 7 is clamped between the front and rear ends of the first base plate 6 and the upper strip retaining edge 52 on the same side. After the lifting mechanism mounting seat 5 is detachably fixed at the lower end of the car seat 4, the car seat 4 is easily fixed on the sliding mounting platform 11.

[0097] In some embodiments, in order to facilitate the horizontal adjustment of the distance between the lifting mechanism 8 and the car seat 4, a second wedge-shaped sliding groove 53 is opened in the middle of the upper surface of the rectangular block 51 along the length direction;

[0098] The bottom surface of the first base plate 6 is fixedly equipped with a first wedge-shaped slider 54 that matches the second wedge-shaped slide groove 53. The first base plate 6 is slidably assembled in the second wedge-shaped slide groove 53 through the first wedge slider 54. The lifting mechanism 8 slides horizontally in the second wedge slide groove 53 through the first wedge slider 54 on the lower end of the first base plate 6 to adjust the distance between the lifting mechanism 8 and the car seat 4. After adjusting to the appropriate position, the position of the first base plate 6 and the lifting mechanism 8 thereon is fixed by the G-shaped clamp 7.

[0099] In some embodiments, in order to strengthen the fixed connection strength between the lifting mechanism 8 and the first base plate 6 , a triangular reinforcement rib 1 is fixedly installed between the outer wall of the lifting mechanism 8 and the upper surface of the first base plate 6 .

[0100] In some embodiments, in order to facilitate the installation and fixation of the car seat 4, the following is further included:

[0101] Car seat mounting base 3, which includes:

[0102] The second bottom plate 31 has connection blocks 32 fixedly mounted at the four corners of its upper surface;

[0103] A fixed beam 33 is provided on both the left and right sides of the lower end of the car seat 4, and the fixed beam 33 is fixedly connected to the upper end of the connecting block 32 on the same side by bolts;

[0104] The lower ends of the car seat mounting seat 3 and the lifting mechanism mounting seat 5 are equipped with a sliding mounting platform 11. In order to facilitate the detachable fixation of the car seat 4 on the sliding mounting platform 11, the car seat mounting seat 3 is detachably fixed at the lower end of the car seat 4.

[0105] In some embodiments, in order to fix the relative positions of the car seat mounting base 3 and the lifting mechanism mounting base 5, the sliding mounting platform 11 includes:

[0106] A rectangular base 111 has third wedge-shaped sliding grooves 112 evenly formed on its upper surface along the width direction;

[0107] Second wedge-shaped sliders 113 are slidably engaged in the third wedge-shaped slots 112 at the four corners of the bottom surfaces of the corresponding car seat mounting base 3 and the lifting mechanism mounting base 5;

[0108] A connecting and fixing structure 9 is assembled between the front and rear edges of the car seat mounting seat 3 and the lifting mechanism mounting seat 5 and the upper end of the corresponding second wedge-shaped slider 113, and the car seat mounting seat 3 and the lifting mechanism mounting seat 5 are fixed on the sliding mounting platform 11 through the connecting and fixing structure 9.

[0109] In some embodiments, in order to detachably fix the car seat mounting base 3 and the lifting mechanism mounting base 5 on the sliding mounting platform 11, so as to facilitate the fixing of the entire device and facilitate the entire device to enter the environmental chamber, the connecting and fixing structure 9 includes:

[0110] The arc-shaped plates 91 are provided with eight corresponding second wedge-shaped sliders 113;

[0111] A mounting groove 92 is formed in the middle of the upper surface of the arc-shaped plate 91 along the length direction, and a strip-shaped through hole 93 is formed in the middle of the mounting groove 92 along the length direction;

[0112] A third screw rod 94 passes through the strip-shaped through hole 93 , and the lower end of the third screw rod 94 is fixedly connected to the upper end of the corresponding second wedge-shaped slider 113 ;

[0113] The upper end of the outer wall of the third screw rod 94 is screwed with a second fixing nut 95, and the lower end of the second fixing nut 95 abuts against the bottom surface of the mounting groove 92;

[0114] One end of the arc plate 91 rests on the upper surface of the rectangular base 111, and the other end of the arc plate 91 rests on the corresponding edge upper surfaces of the car seat mounting seat 3 and the lifting mechanism mounting seat 5. After tightening the second fixing nut 95, the arc plate 91 is squeezed downward so that one end of the arc plate 91 rests on the upper surface of the rectangular base 111, and the other end rests on the corresponding edge upper surfaces of the car seat mounting seat 3 and the lifting mechanism mounting seat 5, thereby fixing the car seat mounting seat 3 and the lifting mechanism mounting seat 5 on the sliding mounting platform 11.

[0115] Working principle:

[0116] The height of the seat armrest rotation drive assembly 2 is adjusted by the lifting mechanism 8, and is suitable for car seats 4 of different heights. A U-shaped frame 24 is slidingly assembled in an interference fit within the first wedge-shaped chute 23. The U-shaped frame 24 can slide within the first wedge-shaped chute 23 when subjected to sufficient external force. When the external force is removed, the U-shaped frame 24 is retained in the first wedge-shaped chute 23. During the reversal of the crossbeam 22, the U-shaped frame 24 slides back and forth to remain sleeved on the outer side of the reversible armrest of the car seat 4. The external force driving the sliding of the U-shaped frame 24 is provided by the cam drive structure 25.

[0117] The rear end of the circular plate 21 away from the lifting mechanism 8 is equipped with a cam drive structure 25, and a cam 253 is provided on its rotating end. The rotation of the cam 253 squeezes the rear end of the rotating beam 22 to flip up and down. The U-shaped frame 24 is sleeved on the outer front end of the flip armrest of the car seat 4. The flipping of the beam 22 drives the U-shaped frame 24 and the flip armrest of the car seat 4 to flip up and down. The rotation is transmitted through the cam 253 to realize the rotation action, simulate the actual use state of the armrest, realize automatic testing, replace manual testing by technicians, and realize the continuous rotation of the armrest. The stroke running speed and stroke range are controllable to avoid experimental errors. There is no need for direct operation by technicians, which is convenient for entering the environmental box for durability testing under high and low temperature conditions.

[0118] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A car seat armrest rotation durability test device, characterized in that: include: The lifting mechanism (8), whose movable portion is fixedly equipped with a seat armrest rotation drive assembly (2), comprises: A circular plate (21) whose axis is fixedly mounted on the movable portion of the lifting mechanism (8); A crossbeam (22) is rotatably mounted on the middle portion of the circular plate (21) away from the lifting mechanism (8), and a first wedge-shaped sliding groove (23) is provided along the length direction of the crossbeam (22) away from the lifting mechanism (8); A U-shaped frame (24) is slidingly assembled in an interference fit manner in the first wedge-shaped sliding groove (23); The rear end of the circular plate (21) away from the lifting mechanism (8) is equipped with a cam driving structure (25), and a cam (253) is provided on the rotating end thereof; The outer wall of the cam (253) is in contact with the rear end of the crossbeam (22), and the rear end surface of the crossbeam (22) is an arc surface; The rotation of the cam (253) causes the rear end of the crossbeam (22) to turn up and down; A car seat (4) having a reversible armrest; The U-shaped frame (24) is sleeved on the outer front end of the flippable armrest of the car seat (4), and the flipping of the crossbeam (22) drives the U-shaped frame (24) and the flippable armrest of the car seat (4) to flip up and down.

2. The vehicle seat armrest rotation durability testing device according to claim 1, characterized in that: The cam driving structure (25) comprises: A driving motor (251) is fixedly mounted on the rear end of the circular plate (21) away from the lifting mechanism (8), and a rotating shaft of the driving motor (251) passes through the circular plate (21); A first screw (252) is fixedly connected to the middle portion of the end face of the rotating shaft of the driving motor (251); The cam (253) is sleeved on the outside of the first screw (252); A first fixing nut (254) is screwed onto the first screw rod (252), and the cam (253) is clamped between the first fixing nut (254) and the end face of the rotating shaft of the driving motor (251).

3. The vehicle seat armrest rotation durability testing device according to claim 1, characterized in that: The lifting mechanism (8) comprises: A mounting frame (81) having upper and lower edges provided with transverse plates; A second screw rod (82) is screwed to the middle of the upper end of the mounting frame (81), and the lower end of the second screw rod (82) is rotatably assembled on the bottom surface of the inner cavity of the mounting frame (81); The outer wall of the second screw rod (82) is screwed with a mounting block (83), and the outer wall of the mounting block (83) is slidably fitted with the inner wall of the mounting frame (81); The mounting block (83) is fixedly mounted with a connecting column (84) on one side close to the vehicle seat (4); The axis of the circular plate (21) is fixedly assembled on the connecting column (84) close to one end of the car seat (4).

4. The vehicle seat armrest rotation durability testing device according to claim 1, characterized in that: Also includes: a control cabinet (10) electrically connected to the cam drive structure (25); The control cabinet (10) controls the rotation angle of the cam (253) driven by the cam driving structure (25).

5. The vehicle seat armrest rotation durability testing device according to claim 1, characterized in that: Also includes: A lifting mechanism mounting seat (5) and a first base plate (6), wherein the lifting mechanism mounting seat (5) is arranged parallel to the car seat (4); The first base plate (6) is fixedly assembled on the lower end of the lifting mechanism (8); The lifting mechanism mounting seat (5) comprises: A rectangular block (51) having strip-shaped retaining edges (52) integrally formed on the upper and lower edges of the front and rear side walls; A G-shaped clamp (7) is clamped between the front and rear ends of the first bottom plate (6) and the upper strip retaining edge (52) on the same side.

6. The vehicle seat armrest rotation durability testing device according to claim 5, characterized in that: A second wedge-shaped sliding groove (53) is provided in the middle of the upper surface of the rectangular block (51) along the length direction; A first wedge-shaped sliding block (54) matching the second wedge-shaped sliding groove (53) is fixedly mounted on the bottom surface of the first base plate (6), and the first base plate (6) is slidably mounted in the second wedge-shaped sliding groove (53) via the first wedge-shaped sliding block (54).

7. The vehicle seat armrest rotation durability testing device according to claim 5, characterized in that: A triangular reinforcing rib (1) is fixedly mounted between the outer wall of the lifting mechanism (8) and the upper surface of the first bottom plate (6).

8. The vehicle seat armrest rotation durability testing device according to claim 5, characterized in that: Also includes: A car seat mounting base (3) comprising: The second bottom plate (31) has connection blocks (32) fixedly mounted at the four corners of its upper surface; Fixed beams (33) are provided on both the left and right sides of the lower end of the automobile seat (4), and the fixed beams (33) are fixedly connected to the upper ends of the connecting blocks (32) on the same sides by bolts; The lower ends of the automobile seat mounting seat (3) and the lifting mechanism mounting seat (5) are equipped with a sliding mounting platform (11).

9. The vehicle seat armrest rotation durability testing device according to claim 8, characterized in that: The sliding mounting platform (11) comprises: A rectangular base (111) has an upper surface uniformly provided with third wedge-shaped sliding grooves (112) along the width direction; Second wedge-shaped sliding blocks (113) are slidably engaged in the third wedge-shaped chute (112) at the four corners of the bottom surface of the corresponding automobile seat mounting seat (3) and the lifting mechanism mounting seat (5); A connecting and fixing structure (9) is assembled between the front and rear edges of the automobile seat mounting seat (3) and the lifting mechanism mounting seat (5) and the upper end of the corresponding second wedge-shaped sliding block (113).

10. The vehicle seat armrest rotation durability testing device according to claim 9, characterized in that: The connecting and fixing structure (9) comprises: Eight arc-shaped plates (91) are provided corresponding to the second wedge-shaped sliders (113); A mounting groove (92) is provided in the middle of the upper surface of the arc-shaped plate (91) along the length direction, and a strip-shaped through hole (93) is provided in the middle of the mounting groove (92) along the length direction; A third screw rod (94) passes through the strip-shaped through hole (93), and the lower end of the third screw rod (94) is fixedly connected to the upper end of the corresponding second wedge-shaped sliding block (113); The upper end of the outer wall of the third screw rod (94) is screwed with a second fixing nut (95), and the lower end of the second fixing nut (95) abuts against the bottom surface of the mounting groove (92); One end of the arc-shaped plate (91) abuts against the upper surface of the rectangular base (111), and the other end of the arc-shaped plate (91) abuts against the upper surfaces of corresponding edges of the car seat mounting seat (3) and the lifting mechanism mounting seat (5).

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