Detection jig for chair tilting mechanism

Abstract

The utility model relates to the technical field of jigs, in particular to a chair tilting mechanism detection jig. Comprising a base, a positioning rod is arranged on one side of the base, parallel connecting rods are arranged on one side of the positioning rod, a clamping jaw assembly is arranged at the upper ends of the connecting rods, the lower ends of the connecting rods are connected with a first driving device, and a first switch matched with the first driving device is arranged on one side of the base. Compared with the prior art, as the circuit, the tipping mechanism and the like of the seat are all arranged in the base, the seat does not need to be assembled before detection, the tipping mechanism of the base can be independently detected, the operation is simplified, 100% full detection of the base can be realized, and the product quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically a fixture for detecting a chair tilting mechanism. Background Technology

[0002] Currently, testing the tilt mechanism of a seat requires assembling the seat base, backrest, and other components before testing using a specific fixture, which is time-consuming and labor-intensive. Because full inspection is time-consuming, some manufacturers only conduct random checks on the tilt mechanism, which cannot guarantee a 100% pass rate. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this utility model provides a chair tilting mechanism detection fixture.

[0004] To achieve the above objectives, a chair tilting mechanism detection fixture is designed, including a base, a positioning rod on one side of the base, a parallel connecting rod on one side of the positioning rod, a gripper assembly at the upper end of the connecting rod, a first driving device connected to the lower end of the connecting rod, and a first switch cooperating with the first driving device on one side of the base.

[0005] The gripper assembly includes two grippers arranged opposite each other.

[0006] The first switch has a handle on one side.

[0007] The lower end of the first driving device is connected to the support lug via a connecting plate. The support lug contains a rotating shaft, and both sides of the rotating shaft are connected to the lower end of the base via fixed seats.

[0008] The base surface is provided with a through hole for the connecting rod to move.

[0009] The positioning rod is fitted with a sleeve and a transmission plate from top to bottom. The lower end of the sleeve abuts against the upper end of the transmission plate, and the upper end of the transmission plate is connected to the second driving device on both sides by fasteners.

[0010] The lower part of the base is provided with a second switch that cooperates with the second drive device.

[0011] Compared with the prior art, this utility model eliminates the need to assemble the seat before testing because the seat's wiring and tilting mechanism are all located inside the base. The tilting mechanism of the base can be tested separately, simplifying the operation and enabling 100% inspection of the base, thus ensuring product quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the structure of the present invention after the upper part of the base has been removed.

[0014] Figure 3 This is a partial enlarged view of the gripper of this utility model.

[0015] Figure 4 This is a schematic diagram of the structure of the rotating shaft of this utility model.

[0016] Figure 5 This is a partial enlarged view of the rotating shaft of this utility model. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings. Example 1

[0018] like Figures 1 to 3 As shown, a positioning rod 2 is provided on one side of the base 1, and a parallel connecting rod 3 is provided on one side of the positioning rod 2. A gripper assembly 4 is provided at the upper end of the connecting rod 3, and a first driving device 5 is connected to the lower end of the connecting rod 3. A first switch 6 that cooperates with the first driving device 5 is provided on one side of the base 1.

[0019] The gripper assembly 4 includes two grippers 4-1 arranged opposite each other. In actual use, the shape of the gripper assembly is determined according to the shape of the chair base so that the gripper assembly can hold the base. In this embodiment, the gripper is shaped like a figure 7.

[0020] The first switch 6 has a handle on one side. In this embodiment, the first switch 6 is a switch valve. By turning the handle, the switch valve is opened or closed, thereby controlling whether the first drive device 5 is activated.

[0021] The structure of positioning rod 2 is designed to work in conjunction with the seat base to simulate the function of a seat gas spring.

[0022] In this embodiment, the first driving device 5 is a cylinder.

[0023] In this embodiment, the seat base is fixed to the positioning rod 2, and then the gripper assembly 4 clamps the base to the seat back mounting position. First, the tilting mechanism of the base is kept in the locked state. The first switch 6 is turned on, and the first drive device 5 drives the gripper assembly 4 downwards via the connecting rod 3, simulating human movement. At this time, it is observed whether the seat base can be pulled. If it cannot be pulled, it indicates that the tilting mechanism of the base in the locked state is qualified. If the connecting rod 3 can be easily pulled, it indicates that the tilting mechanism of the base is faulty. After the test is completed, the first switch is turned off. Next, the locked state of the tilting mechanism is released, and the first switch 6 is turned on again. The first drive device 5 drives the gripper assembly 4 downwards via the connecting rod 3, and it is observed whether the tilting mechanism in the unlocked state can complete the tilting action. Example 2

[0024] This embodiment only describes the differences from Embodiment 1; the similarities will not be repeated.

[0025] Based on Embodiment 1, in this embodiment, a sleeve 13 and a transmission plate 14 are respectively fitted on the positioning rod 2 from top to bottom. The lower end of the sleeve 13 abuts against the upper end of the transmission plate 14, and the two sides of the upper end of the transmission plate 14 are connected to the second driving device 16 through the fixing member 15.

[0026] A second switch 17 is provided in the lower part of the base 1 to cooperate with the second drive device 16. In this embodiment, the second drive device 16 is a cylinder, and the second switch 17 is a foot pedal type pneumatic switch, which is simple to operate.

[0027] In this embodiment, the seat base is fixed on the positioning rod 2. After testing, it was found that the base was fixed too tightly. At this time, the second switch 17 is turned on, and the second drive device 16 drives the sleeve 13 to push upward onto the seat base through the transmission plate 14, so that the seat base can be removed. Example 3

[0028] This embodiment only illustrates the differences from Embodiments 1 and 2; the similarities will not be repeated.

[0029] This embodiment is based on Embodiment 1 or Embodiment 2, such as Figures 4 to 5 As shown, the lower end of the first driving device 5 is connected to the support ear 9 through the connecting plate 8. The support ear 9 is provided with a rotating shaft 10. The two sides of the rotating shaft 10 are connected to the lower end of the base 1 through the fixing seat 11.

[0030] The base 1 has a through hole 12 on its surface for the connecting rod 3 to move.

[0031] In this embodiment, the first driving device 5, the connecting rod 3, and the gripper assembly 4 are rotatably connected by the rotating shaft 10. When it is necessary to disassemble or install the seat base, the first driving device 5, the connecting rod 3, and the gripper assembly 4 are rotated to the side away from the positioning rod 2 and rest against the inner wall of the side of the through hole 12 away from the positioning rod 12. This avoids the disassembly and installation of the seat base and makes the fixture of this utility model more widely applicable, suitable for testing different models and styles of chairs.

Claims

1. A chair tilting mechanism detection fixture, comprising a base, characterized in that: The base (1) is provided with a positioning rod (2) on one side, and a parallel connecting rod (3) is provided on one side of the positioning rod (2). The upper end of the connecting rod (3) is provided with a gripper assembly (4), and the lower end of the connecting rod (3) is connected to a first driving device (5). The base (1) is provided with a first switch (6) that cooperates with the first driving device (5).

2. The chair tilting mechanism detection fixture according to claim 1, characterized in that: The gripper assembly (4) includes two grippers (4-1) arranged opposite to each other.

3. The chair tilting mechanism detection fixture according to claim 1, characterized in that: The first switch (6) has a handle on one side.

4. The chair tilting mechanism detection fixture according to claim 1, characterized in that: The positioning rod (2) is fitted with a sleeve (13) and a transmission plate (14) from top to bottom. The lower end of the sleeve (13) abuts against the upper end of the transmission plate (14). The upper ends of the transmission plate (14) are connected to the second driving device (16) through fasteners (15).

5. A chair tilting mechanism detection fixture according to claim 4, characterized in that: The lower part of the base (1) is provided with a second switch (17) that cooperates with the second drive device (16).

6. A chair tilting mechanism detection fixture according to claim 1 or 4, characterized in that: The lower end of the first driving device (5) is connected to the support ear (9) through the connecting plate (8). The support ear (9) is provided with a rotating shaft (10). The two sides of the rotating shaft (10) are connected to the lower end of the base (1) through the fixing seat (11).

7. A chair tilting mechanism detection fixture according to claim 6, characterized in that: The base (1) has a through hole (12) on its surface for the connecting rod (3) to move.

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