A traction seat opening and closing experimental device

Abstract

The application discloses a traction seat opening and closing experimental device, and relates to the technical field of experimental equipment.The traction seat opening and closing experimental device comprises a first supporting mechanism, a pressing mechanism, a first elastic mechanism, a second elastic mechanism, a traction pin, a first guide rail mechanism and a mounting plate.The mounting plate is fixedly arranged in the lower half of the first supporting mechanism.The mounting plate is used for bearing and fixing a traction seat to be experimented.The first guide rail mechanism is fixedly arranged on the stand column of the first supporting mechanism.The pressing mechanism is slidably connected with the first guide rail mechanism.The first elastic mechanism is fixedly connected with the pressing mechanism and the upper end of the first supporting mechanism respectively.The pressing mechanism is provided with an opening.The second elastic mechanism is arranged in the opening and fixedly connected with the pressing mechanism.The traction pin is perpendicularly connected with the output shaft of the second elastic mechanism.The traction seat opening and closing experimental device can test the quality and service life of the traction seat.

Description

Technical Field

[0001] This invention relates to the field of experimental equipment technology, and in particular to an experimental device for opening and closing a traction seat. Background Technology

[0002] With China's rapid economic development and substantial investment in highway construction, road transport has become a major mode of transportation in China. Semi-trailer tractors, as the main equipment for road transport, are widely used due to their advantages such as high specialization, large loading capacity, and fast transportation. The drawbar is the core component connecting the tractor and the semi-trailer, generally including a saddle, a bracket, and a locking device installed within the saddle. The bracket is mounted on the tractor via corrugated plates, and the semi-trailer is equipped with a draw pin. The draw pin is locked and fixed by the locking device within the saddle, completing the towing process. However, during the production of the saddle, it cannot be guaranteed that all locking devices can effectively engage the draw pin. Therefore, a test bench is needed to verify whether the drawbar can effectively engage the draw pin, and the service life of the drawbar also needs to be tested to ensure the safety of the semi-trailer tractor connection. Summary of the Invention

[0003] The purpose of this invention is to provide a traction seat opening and closing test device to test the quality and service life of the traction seat.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] A traction seat opening and closing test device includes: a first support mechanism, a pressing mechanism, a first elastic mechanism, a second elastic mechanism, a traction pin, a first guide rail mechanism, and a mounting plate;

[0006] The mounting plate is fixedly installed inside the lower half of the first support mechanism; the mounting plate is used to support and fix the traction seat to be tested.

[0007] The first guide rail mechanism is fixedly mounted on the column of the first support mechanism; the clamping mechanism is slidably connected to the first guide rail mechanism;

[0008] The first elastic mechanism is fixedly connected to the upper ends of the clamping mechanism and the first support mechanism, respectively;

[0009] When the first elastic mechanism unfolds, it causes the clamping mechanism to slide downward along the first guide rail mechanism, and the downward sliding of the clamping mechanism clamps the traction seat to be tested; when the first elastic mechanism contracts, it causes the clamping mechanism to slide upward along the first guide rail mechanism, and the upward sliding of the clamping mechanism releases the traction seat to be tested.

[0010] The clamping mechanism is provided with an opening; the second elastic mechanism is disposed in the opening and is fixedly connected to the clamping mechanism.

[0011] The traction pin is perpendicularly connected to the output shaft of the second elastic mechanism. When the second elastic mechanism unfolds, it drives the traction pin to dock with the traction seat to be tested. When the second elastic mechanism retracts, it drives the traction pin to leave the traction seat to be tested.

[0012] Preferably, both the first elastic mechanism and the second elastic mechanism are cylinders.

[0013] Preferably, the pressing mechanism includes: a first slider unit, a second slider unit, a first vertical plate, a second vertical plate, a connecting plate, a first pressing bracket, a second pressing bracket, a connecting bracket, a first pressing panel, and a second pressing panel;

[0014] The connecting plate is fixedly connected to the first upright plate and the second upright plate respectively via mounting brackets; the connecting plate is provided with the opening;

[0015] The first upright plate is slidably connected to the first guide rail mechanism via the first slider unit; the second upright plate is slidably connected to the first guide rail mechanism via the second slider unit.

[0016] The connecting bracket is fixedly disposed at the upper end of the connecting plate; the first elastic mechanism passes through the connecting bracket and is fixedly connected to the upper end of the connecting plate;

[0017] The second elastic mechanism is disposed within the opening and is fixedly connected to the connecting bracket;

[0018] Both the first clamping bracket and the second clamping bracket are fixedly disposed at the lower end of the connecting plate; the first clamping bracket and the second clamping bracket are symmetrical along the center line of the opening;

[0019] The first pressing panel is fixedly connected to the lower end of the first pressing bracket; the second pressing panel is fixedly connected to the lower end of the second pressing bracket.

[0020] Preferably, the lower end of the first pressing panel is provided with a first shock-absorbing sheet; the lower end of the second pressing panel is provided with a second shock-absorbing sheet.

[0021] Preferably, the traction seat opening and closing experimental device further includes an unlocking mechanism;

[0022] The unlocking mechanism is used to unlock the locking mechanism of the traction seat to be tested, so as to repeatedly perform the opening and closing test on the traction seat to be tested.

[0023] Preferably, the unlocking mechanism includes: a second support unit, a third elastic mechanism, a fourth elastic mechanism, a pulling unit, and a pushing block;

[0024] The third elastic mechanism is fixedly mounted on the second support unit; the fourth elastic mechanism is fixedly mounted between the first upright plate and the second upright plate.

[0025] The pushing block is fixedly connected to the fourth elastic mechanism; the fourth elastic mechanism unfolds to drive the pushing block to move, and the movement of the pushing block drives the operating unit to rotate by a set angle; the operating rod and handle in the locking mechanism are fixedly connected to obtain the operating unit;

[0026] The third elastic mechanism extends to a predetermined length to drive the hook unit to move and hook the handle;

[0027] The third elastic mechanism contracts to a set length so that the operating unit moves to a set length via the pulling unit, thereby unlocking the locking mechanism.

[0028] Preferably, the fourth elastic mechanism includes: a fixed rod unit, a lifting base, and a fourth elastic unit;

[0029] The fourth elastic unit is fixedly installed at the lower end of the lifting base;

[0030] The lifting base is connected to the fixed rod unit via a screw tensioning element; when the screw tensioning element is in the loose state, the lifting base moves along the fixed rod unit; when the tensioning element is in the tight state, the lifting base is locked to the fixed rod unit.

[0031] Preferably, the unlocking mechanism further includes: a second guide rail unit, a fifth elastic mechanism, and a fixing plate;

[0032] The third elastic mechanism is fixedly mounted on the fixed plate; the hanging unit is mounted on the fixed plate;

[0033] The fifth elastic mechanism is fixedly connected to the upper end of the fixed plate and the second support unit, respectively;

[0034] The second guide rail unit is fixedly mounted on the column of the second support unit; the fixing plate is slidably connected to the second guide rail unit.

[0035] The fifth elastic mechanism unfolds, causing the fixed plate to move downward along the second guide rail unit; the fifth elastic mechanism retracts, causing the fixed plate to move upward along the second guide rail unit.

[0036] Preferably, the hanging unit includes: a rotating wheel, a trapezoidal block, and a hook;

[0037] The hook is hinged to the third elastic mechanism; the wheel is rotatably connected to the hook; the hook moves on the fixed plate based on the wheel;

[0038] The trapezoidal block is fixedly mounted on the fixed plate, and the trapezoidal block is located between the third elastic mechanism and the hook;

[0039] The third elastic mechanism extends to a set length to push the hook to move a set length and then hook the handle;

[0040] The third elastic mechanism contracts to a set length so that the operating unit moves to a set length via the hook, thereby unlocking the locking mechanism, and the hook disengages from the handle under the action of the trapezoidal block.

[0041] Preferably, the fourth elastic unit, the fifth elastic mechanism, and the third elastic mechanism are all cylinders.

[0042] According to specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0043] This invention discloses a traction seat opening and closing experimental device, comprising: a first support mechanism, a clamping mechanism, a first elastic mechanism, a second elastic mechanism, a traction pin, a first guide rail mechanism, and a mounting plate; the mounting plate is fixedly disposed inside the lower half of the first support mechanism; the mounting plate is used to support and fix the traction seat to be tested; the first guide rail mechanism is fixedly disposed on the column of the first support mechanism; the clamping mechanism is slidably connected to the first guide rail mechanism; the first elastic mechanism is fixedly connected to the upper ends of the clamping mechanism and the first support mechanism respectively; the first elastic mechanism unfolds and drives the clamping mechanism to slide downward along the first guide rail mechanism, and the downward sliding of the clamping mechanism presses against the traction seat to be tested. The device is designed to perform opening and closing tests on traction seats, thereby obtaining the processing quality and service life of the traction seats and ensuring the safety of semi-trailer tractor connections. The first elastic mechanism contracts, causing the pressing mechanism to slide upwards along the first guide rail mechanism, releasing the traction seat to be tested. The pressing mechanism has an opening. The second elastic mechanism is disposed within the opening and is fixedly connected to the pressing mechanism. The traction pin is perpendicularly connected to the output shaft of the second elastic mechanism. The second elastic mechanism unfolds, causing the traction pin to engage with the traction seat to be tested. The second elastic mechanism contracts, causing the traction pin to leave the traction seat to be tested. Based on the device disclosed in this invention, the opening and closing tests of the traction seat can be performed, thereby obtaining the processing quality and service life of the traction seat and ensuring the safety of the semi-trailer tractor connection. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments 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.

[0045] Figure 1 This is a structural diagram of the experimental device for opening and closing the traction seat of the present invention;

[0046] Figure 2 This is a rear view of the experimental device for opening and closing the traction seat of the present invention.

[0047] Figure 3 This is a left view of the experimental device for opening and closing the traction seat of the present invention;

[0048] Figure 4 This is a front view of the traction seat opening and closing experimental device of the present invention;

[0049] Figure 5 This is a schematic diagram of the unlocking mechanism of the present invention.

[0050] Symbol Explanation: 1. First support mechanism; 2. Pressing mechanism; 3. First elastic mechanism; 4. Second elastic mechanism; 5. First guide rail mechanism; 6. Mounting plate; 7. Traction seat to be tested; 8. Unlocking mechanism; 21. First upright plate; 22. Second upright plate; 81. Second support unit; 82. Third elastic mechanism; 83. Fourth elastic mechanism; 84. Hanging unit; 831. Fixed rod unit; 832. Lifting seat; 841. Rotary wheel; 842. Trapezoidal block; 843. Hook. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and 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.

[0052] The purpose of this invention is to provide a traction seat opening and closing test device to test the quality and service life of the traction seat.

[0053] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0054] Figure 1 This is a structural diagram of the experimental device for opening and closing the traction seat of the present invention; Figure 2 This is a rear view of the experimental device for opening and closing the traction seat of the present invention. Figure 3 This is a left view of the experimental device for opening and closing the traction seat of the present invention; Figure 4 This is a front view of the experimental device for opening and closing the traction seat of the present invention. Figures 1-4As shown, the present invention provides a traction seat opening and closing experimental device, comprising: a first support mechanism 1, a pressing mechanism 2, a first elastic mechanism 3, a second elastic mechanism 4, a traction pin, a first guide rail mechanism 5, and a mounting plate 6.

[0055] The mounting plate 6 is fixedly disposed inside the lower half of the first support mechanism 1; the mounting plate 6 is used to support and fix the traction seat 7 to be tested. In this embodiment, the mounting plate 6 is provided with a plurality of limiting blocks to restrict the traction seat 7 to be tested in the horizontal direction and prevent the traction seat 7 to be tested from moving horizontally on the mounting plate 6.

[0056] The first guide rail mechanism 5 is fixedly mounted on the column of the first support mechanism 1; the clamping mechanism 2 is slidably connected to the first guide rail mechanism 5. In this embodiment, the first guide rail mechanism 5 includes four first guide rails, the first support mechanism 1 is provided with four columns, each column is provided with one first guide rail, the lower half of the first support mechanism 1 is provided with a mounting frame, and the mounting plate 6 is fixedly mounted on the mounting frame.

[0057] The first elastic mechanism 3 is fixedly connected to the upper ends of both the pressing mechanism 2 and the first support mechanism 1. In this embodiment, the first elastic mechanism 3 is a cylinder, specifically model SC160*400.

[0058] When the first elastic mechanism 3 unfolds, it causes the clamping mechanism 2 to slide downward along the first guide rail mechanism 5, and the clamping mechanism 2 slides downward to clamp the traction seat 7 to be tested; when the first elastic mechanism 3 contracts, it causes the clamping mechanism 2 to slide upward along the first guide rail mechanism 5, and the clamping mechanism 2 slides upward to release the traction seat 7 to be tested.

[0059] The clamping mechanism 2 has an opening; the second elastic mechanism 4 is disposed within the opening and is fixedly connected to the clamping mechanism 2. In this embodiment, the second elastic mechanism 4 is a cylinder.

[0060] The traction pin is perpendicularly connected to the output shaft of the second elastic mechanism 4. When the second elastic mechanism 4 unfolds, it causes the traction pin to dock with the traction seat 7 to be tested. When the second elastic mechanism 4 retracts, it causes the traction pin to leave the traction seat 7 to be tested. In this embodiment, a test-specific traction pin is used.

[0061] Specifically, the pressing mechanism 2 includes: a first slider unit, a second slider unit, a first upright plate 21, a second upright plate 22, a connecting plate, a first pressing bracket, a second pressing bracket, a connecting bracket, a first pressing panel, and a second pressing panel.

[0062] The connecting plate is fixedly connected to the first upright plate 21 and the second upright plate 22 respectively via mounting brackets; the connecting plate is provided with the opening.

[0063] The first upright plate 21 is slidably connected to the first guide rail mechanism 5 via the first slider unit; the second upright plate 22 is slidably connected to the first guide rail mechanism 5 via the second slider unit.

[0064] The connecting bracket is fixedly mounted on the upper end of the connecting plate; the first elastic mechanism 3 passes through the connecting bracket and is fixedly connected to the upper end of the connecting plate.

[0065] The second elastic mechanism 4 is disposed in the opening and is fixedly connected to the connecting bracket.

[0066] Both the first clamping bracket and the second clamping bracket are fixedly disposed at the lower end of the connecting plate; the first clamping bracket and the second clamping bracket are symmetrical along the center line of the opening.

[0067] The first pressing panel is fixedly connected to the lower end of the first pressing bracket; the second pressing panel is fixedly connected to the lower end of the second pressing bracket.

[0068] To avoid damage to the traction seat 7 to be tested during the experiment, in this embodiment, a first damping plate is provided at the lower end of the first pressing panel; a second damping plate is provided at the lower end of the second pressing panel. Preferably, both the first damping plate and the second damping plate are made of rubber.

[0069] The aforementioned traction seat opening and closing test device can perform opening and closing tests on the automatically unlocking traction seat. The specific process is as follows:

[0070] 1) Place the traction seat 7 to be tested on the mounting plate 6.

[0071] 2) Based on the first elastic mechanism 3, the pressing mechanism 2 moves downward along the first guide rail mechanism 5 to press the traction seat 7 to be tested.

[0072] 3) Based on the second elastic mechanism 4, the traction pin is driven to move so as to achieve docking and impact between the traction pin and the traction seat 7 to be tested.

[0073] 4) The traction seat 7 to be tested is automatically unlocked.

[0074] 5) Based on the contraction of the second elastic mechanism 4, the traction pin moves so that the traction pin leaves the traction seat 7 to be tested.

[0075] 6) Repeat process 2) to process 5) until the test experiment is completed. Based on the first elastic mechanism 3, the clamping mechanism 2 moves upward along the first guide rail mechanism 5 to release the traction seat 7 to be tested.

[0076] In order to conduct opening and closing tests on manually unlocked traction seats, the traction seat opening and closing test device of the present invention further includes an unlocking mechanism 8.

[0077] The unlocking mechanism 8 is used to unlock the locking mechanism of the traction seat 7 to be tested, so as to repeatedly perform the opening and closing test on the traction seat 7 to be tested.

[0078] Specifically, such as Figure 5 As shown, the unlocking mechanism 8 includes: a second support unit 81, a third elastic mechanism 82, a fourth elastic mechanism 83, a pulling unit 84, and a pushing block.

[0079] The third elastic mechanism 82 is fixedly mounted on the second support unit 81; the fourth elastic mechanism 83 is fixedly mounted between the first upright plate 21 and the second upright plate 22.

[0080] The pushing block is fixedly connected to the fourth elastic mechanism 83; the fourth elastic mechanism 83 unfolds to drive the pushing block to move, and the movement of the pushing block drives the operating unit to rotate by a set angle; the operating rod and handle in the locking mechanism are fixedly connected to obtain the operating unit. In this embodiment, the pushing block is in the shape of a triangular iron, and several stable triangular pieces are welded inside the triangular iron shape to obtain the pushing block. The triangular iron shape is only used to describe the shape of the pushing block and is not used to limit the material of the pushing block.

[0081] The third elastic mechanism 82 extends to a set length to drive the hook unit 84 to move and hook the handle.

[0082] The third elastic mechanism 82 retracts by a set length so that the operating unit moves by a set length through the pulling unit 84, thereby unlocking the locking mechanism.

[0083] Furthermore, the fourth elastic mechanism 83 includes: a fixed rod unit 831, a lifting base 832, and a fourth elastic unit.

[0084] The fourth elastic unit is fixedly installed at the lower end of the lifting base 832.

[0085] The lifting base 832 is connected to the fixed rod unit 831 via a screw tensioning member; when the screw tensioning member is in the loose state, the lifting base 832 moves along the fixed rod unit 831; when the tensioning member is in the tight state, the lifting base 832 is locked to the fixed rod unit 831.

[0086] In order to achieve the required height for unlocking the locking mechanism, the unlocking mechanism 8 further includes: a second guide rail unit, a fifth elastic mechanism, and a fixing plate.

[0087] The third elastic mechanism 82 is fixedly mounted on the fixed plate; the hanging unit 84 is mounted on the fixed plate.

[0088] The fifth elastic mechanism is fixedly connected to the upper end of the fixed plate and the second support unit 81, respectively.

[0089] The second guide rail unit is fixedly mounted on the column of the second support unit 81; the fixing plate is slidably connected to the second guide rail unit.

[0090] The fifth elastic mechanism unfolds, causing the fixed plate to move downward along the second guide rail unit; the fifth elastic mechanism retracts, causing the fixed plate to move upward along the second guide rail unit.

[0091] Preferably, the hanging unit 84 includes: a rotating wheel 841, a trapezoidal block 842, and a hook 843.

[0092] The hook 843 is hinged to the third elastic mechanism 82; the wheel 841 is rotatably connected to the hook 843; the hook 843 moves on the fixed plate based on the wheel 841.

[0093] The trapezoidal block 842 is fixedly mounted on the fixed plate, and the trapezoidal block 842 is located between the third elastic mechanism 82 and the hook 843. In this embodiment, the trapezoidal block 842 is a right-angled trapezoidal block 842, and the inclined surface of the right-angled trapezoidal block 842 is located on the side of the operating unit.

[0094] The third elastic mechanism 82 extends to a set length to push the hook 843 to move to a set length and then hook the handle.

[0095] The third elastic mechanism 82 retracts to a set length so that the operating unit moves to a set length via the hook 843, thereby unlocking the locking mechanism. The hook 843 disengages from the handle under the action of the trapezoidal block 842. Figure 5 In the diagram, the two rotating wheels 841 and the two hooks 843 represent the positions of the rotating wheels 841 and hooks 843 in the two states of the third elastic mechanism 82 being extended and retracted, respectively.

[0096] In this embodiment, the fourth elastic unit, the fifth elastic mechanism, and the third elastic mechanism 82 are all cylinders.

[0097] The specific process for the manual unlocking traction seat opening and closing test is as follows:

[0098] 1) Place the traction seat 7 to be tested on the mounting plate 6.

[0099] 2) Based on the first elastic mechanism 3, the pressing mechanism 2 moves downward along the first guide rail mechanism 5 to press the traction seat 7 to be tested.

[0100] 3) Based on the movement of the fifth elastic mechanism, the fixed plate moves along the second guide rail unit until the hanging unit 84 reaches the height required to unlock the locking mechanism.

[0101] 4) Adjust the screw tensioning component to the loose state, move the lifting seat 832 along the fixed rod unit 831 until the pushing block can push the operating unit to rotate at a set angle, adjust the tensioning component to the tight state, and lock the lifting seat 832 and the fixed rod unit 831.

[0102] 5) Based on the second elastic mechanism 4, the traction pin is driven to move so as to achieve docking and impact between the traction pin and the traction seat 7 to be tested.

[0103] 6) Based on the fourth elastic mechanism 83, the push block is deployed and driven to move, and the movement of the push block drives the operation unit to rotate by a set angle.

[0104] 7) Based on the third elastic mechanism 82, the hook 843 is extended to a set length to move the hook 843 to a set length and then hook the handle.

[0105] 8) Based on the third elastic mechanism 82, the operating unit is moved by a set length through the hook 843 to unlock the locking mechanism.

[0106] 9) Based on the contraction of the second elastic mechanism 4, the traction pin moves so that the traction pin leaves the traction seat 7 to be tested.

[0107] 10) Repeat process 2) to process 9) until the test experiment is completed. Based on the first elastic mechanism 3, the clamping mechanism 2 moves upward along the first guide rail mechanism 5 to release the traction seat 7 to be tested.

[0108] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably.

[0109] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the device and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A traction seat opening and closing experimental device, characterized in that, include: The system comprises a first support mechanism, a clamping mechanism, a first elastic mechanism, a second elastic mechanism, a traction pin, a first guide rail mechanism, and a mounting plate. The mounting plate is fixedly installed inside the lower half of the first support mechanism; the mounting plate is used to support and fix the traction seat to be tested. The first guide rail mechanism is fixedly mounted on the column of the first support mechanism; the clamping mechanism is slidably connected to the first guide rail mechanism; The first elastic mechanism is fixedly connected to the upper ends of the clamping mechanism and the first support mechanism, respectively; The first elastic mechanism is used to drive the clamping mechanism to move up and down along the first guide rail mechanism to achieve clamping or releasing of the traction seat to be tested; The clamping mechanism is provided with an opening; the second elastic mechanism is disposed in the opening and is fixedly connected to the clamping mechanism. The traction pin is perpendicularly connected to the output shaft of the second elastic mechanism. When the second elastic mechanism unfolds, it drives the traction pin to dock with the traction seat to be tested. When the second elastic mechanism retracts, it drives the traction pin to leave the traction seat to be tested. The traction seat opening and closing experimental device also includes an unlocking mechanism; The unlocking mechanism is used to unlock the locking mechanism of the traction seat to be tested, so as to repeatedly perform the opening and closing test on the traction seat to be tested; The unlocking mechanism includes: a second support unit, a third elastic mechanism, a fourth elastic mechanism, a pulling unit, and a pushing block; The unlocking mechanism also includes: a second guide rail unit, a fifth elastic mechanism, and a fixing plate; The third elastic mechanism is fixedly mounted on the second support unit; The pushing block is fixedly connected to the fourth elastic mechanism; the fourth elastic mechanism unfolds to drive the pushing block to move, and the movement of the pushing block drives the operating unit to rotate by a set angle; the operating rod and handle in the locking mechanism are fixedly connected to obtain the operating unit; The third elastic mechanism extends to a predetermined length to drive the hook unit to move and hook the handle; The third elastic mechanism retracts a set length to drive the operating unit to move a set length via the pulling unit, thereby unlocking the locking mechanism; The suspension unit includes: a rotating wheel, a trapezoidal block, and a hook; The hook is hinged to the third elastic mechanism; the wheel is rotatably connected to the hook; the hook moves on the fixed plate based on the wheel; The trapezoidal block is fixedly mounted on the fixed plate, and the trapezoidal block is located between the third elastic mechanism and the hook; The third elastic mechanism extends to a set length to push the hook to move a set length and then hook the handle; The third elastic mechanism contracts to a set length so that the operating unit moves to a set length via the hook, thereby unlocking the locking mechanism, and the hook disengages from the handle under the action of the trapezoidal block.

2. The traction seat opening and closing experimental device according to claim 1, characterized in that, Both the first elastic mechanism and the second elastic mechanism are cylinders.

3. The traction seat opening and closing experimental device according to claim 1, characterized in that, The first elastic mechanism is used to drive the pressing mechanism to move up and down along the first guide rail mechanism to achieve pressing or releasing of the traction seat to be tested. Specifically, the first elastic mechanism unfolds and drives the pressing mechanism to slide down along the first guide rail mechanism, and the pressing mechanism slides down to press the traction seat to be tested; the first elastic mechanism contracts and drives the pressing mechanism to slide up along the first guide rail mechanism, and the pressing mechanism slides up to release the traction seat to be tested.

4. The traction seat opening and closing experimental device according to claim 1, characterized in that, The pressing mechanism includes: a first slider unit, a second slider unit, a first vertical plate, a second vertical plate, a connecting plate, a first pressing bracket, a second pressing bracket, a connecting bracket, a first pressing panel, and a second pressing panel; The connecting plate is fixedly connected to the first upright plate and the second upright plate respectively via mounting brackets; the connecting plate is provided with the opening; The first upright plate is slidably connected to the first guide rail mechanism via the first slider unit; the second upright plate is slidably connected to the first guide rail mechanism via the second slider unit. The connecting bracket is fixedly disposed at the upper end of the connecting plate; the first elastic mechanism passes through the connecting bracket and is fixedly connected to the upper end of the connecting plate; The second elastic mechanism is disposed within the opening and is fixedly connected to the connecting bracket; Both the first clamping bracket and the second clamping bracket are fixedly disposed at the lower end of the connecting plate; the first clamping bracket and the second clamping bracket are symmetrical along the center line of the opening; The first clamping panel is fixedly connected to the lower end of the first clamping bracket; the second clamping panel is fixedly connected to the lower end of the second clamping bracket; The fourth elastic mechanism is fixedly disposed between the first upright plate and the second upright plate.

5. The traction seat opening and closing experimental device according to claim 4, characterized in that, The lower end of the first pressing panel is provided with a first shock-absorbing plate; the lower end of the second pressing panel is provided with a second shock-absorbing plate.

6. The traction seat opening and closing experimental device according to claim 5, characterized in that, The fourth elastic mechanism includes: a fixed rod unit, a lifting base, and a fourth elastic unit; The fourth elastic unit is fixedly installed at the lower end of the lifting base; The lifting base is connected to the fixed rod unit via a screw tensioning element; when the screw tensioning element is in the loose state, the lifting base moves along the fixed rod unit; when the tensioning element is in the tight state, the lifting base is locked to the fixed rod unit.

7. The traction seat opening and closing experimental device according to claim 6, characterized in that, The third elastic mechanism is fixedly mounted on the fixed plate; the hanging unit is mounted on the fixed plate; The fifth elastic mechanism is fixedly connected to the upper end of the fixed plate and the second support unit, respectively; The second guide rail unit is fixedly mounted on the column of the second support unit; the fixing plate is slidably connected to the second guide rail unit. The fifth elastic mechanism unfolds, causing the fixed plate to move downward along the second guide rail unit; the fifth elastic mechanism retracts, causing the fixed plate to move upward along the second guide rail unit.

8. The traction seat opening and closing experimental device according to claim 7, characterized in that, The fourth elastic unit, the fifth elastic mechanism, and the third elastic mechanism are all cylinders.

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