Seat chassis adjusting handle push-pull testing machine

Abstract

The utility model provides a push-pull testing machine for a seat chassis adjusting handle. The push-pull testing machine comprises a workbench, and a positioning column, a pressing clamp and a push-pull mechanism which are arranged on the workbench, the workbench is provided with a fixing station used for placing a seat chassis, the number of the positioning columns is multiple, and the positioning columns are distributed on the periphery of the fixing station; each positioning column is used for being inserted into a mounting hole in a seat chassis for positioning; the pressing clamp is used for pressing the edge of the seat chassis; the push-pull mechanism comprises a push-pull seat and a push-pull driving mechanism; the adjusting handle comprises a rod part and a handle part which is bent relative to the rod part; the push-pull seat is provided with a through groove for placing the handle part of the adjusting handle; the push-pull base can move in the radial direction so as to be close to or away from the fixed station. The push-pull driving mechanism is connected with the push-pull seat to drive the push-pull seat to move in the radial direction. According to the utility model, the push-and-pull seat is driven by the push-and-pull driving mechanism to drive the adjusting handle to carry out push-and-pull activity testing, automatic push-and-pull testing can be realized, and the testing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a test machine for pushing and pulling the adjustment handle of a seat chassis. Background Technology

[0002] Existing multi-functional chairs typically have adjustment handles on the chassis, which unlock different functions through push-pull, press, and other linked operations: seat back tilt angle adjustment, height adjustment, etc. For example, Chinese utility model patent CN110731640A discloses a new type of office and leisure chair with a multi-functional chassis.

[0003] To ensure product quality, it is necessary to test the stability of the adjustment handle. However, the push-pull test of the adjustment handle of the seat chassis is usually carried out manually or with semi-automatic equipment, which results in low testing efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a seat chassis adjustment handle push-pull testing machine for testing the push-pull activity of the adjustment handle on the seat chassis. It includes a worktable and positioning posts, a clamping fixture, and a push-pull mechanism mounted on the worktable. The worktable has a fixed station for placing the seat chassis. Multiple positioning posts are distributed around the fixed station. Each positioning post is used to insert into a mounting hole on the seat chassis for positioning. The clamping fixture is used to clamp the edge of the seat chassis. The push-pull mechanism includes a push-pull base and a push-pull drive mechanism. The adjustment handle includes a rod and a handle bent relative to the stem. The push-pull base has a through groove for the handle of the adjustment handle to be inserted. The push-pull base can move radially to move closer to or further away from the fixed station. The push-pull drive mechanism is connected to the push-pull base to drive the push-pull base to move radially.

[0005] This invention utilizes a push-pull drive mechanism to power a push-pull base, which in turn drives an adjustment handle to perform push-pull motion tests. This enables automated push-pull testing and improves testing efficiency. A positioning post is installed at the fixed workstation to position the seat chassis, which is then secured by a clamping fixture. This effectively prevents the seat chassis from shifting and ensures stable push-pull testing of the adjustment handle. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of this utility model.

[0007] Figure 2 This is a top view of the present invention.

[0008] Figure 3 and Figure 4 This is a schematic diagram of the cooperation structure between the push-pull mechanism and the adjusting handle at different angles of this utility model.

[0009] Figure 5This is a schematic diagram of the push-pull mechanism of this utility model.

[0010] Figure 6 This is a schematic diagram of the structure of the clamping fixture of this utility model for clamping the seat chassis.

[0011] Figure 7 This is a schematic diagram of the clamping fixture of this utility model.

[0012] Figure 8 This is a schematic diagram of the seat chassis and adjustment handle of this utility model. Detailed Implementation

[0013] The following description, in conjunction with the accompanying drawings, further illustrates the proposed solution:

[0014] See appendix Figure 1-8 A seat chassis adjustment handle push-pull testing machine is used to test the push-pull activity of the adjustment handle 8 on the seat chassis 7.

[0015] The adjustment handle 8 is movably mounted on the seat chassis 7.

[0016] The seat chassis adjustment handle push-pull testing machine includes a workbench 1 and a positioning column 11, a clamping fixture 2 and a push-pull mechanism installed on the workbench 1.

[0017] The workbench 1 is provided with a fixed station 10 for placing the seat chassis 7. The positioning posts 11 include multiple ones, and each positioning post 11 is distributed around the fixed station 10. Each positioning post 11 is used to insert into the mounting hole 71 on the seat chassis 7 for positioning.

[0018] The clamping fixture 2 is located on one side of the fixed station 10, and the clamping fixture 2 is used to clamp the edge of the seat chassis 7.

[0019] The push-pull mechanism includes a push-pull base 3 and a push-pull drive mechanism 4. The adjusting handle 8 includes a rod 81 and a stem 82 bent relative to the rod 81; the adjusting handle 8 is L-shaped; the push-pull base 3 has a through groove 31 for the stem 82 of the adjusting handle 8 to be inserted; specifically, the push-pull base 3 is U-shaped; the push-pull base 3 can move radially to approach or move away from the fixed workstation 10; the push-pull drive mechanism 4 is located on one side of the fixed workstation 10, and is connected to the push-pull base 3 to drive the push-pull base 3 to move radially, the direction of movement of the push-pull base 3 being as follows... Figure 2 The direction indicated by the middle arrow.

[0020] This technical solution uses a push-pull drive mechanism 4 to drive a push-pull base 3 to move an adjustment handle 8 for push-pull activity testing, which can realize automated push-pull testing and improve testing efficiency. The fixed station 10 is equipped with a positioning column 11 to position the seat chassis 7, and then clamps it with a clamping fixture 2, which can effectively prevent the seat chassis 7 from shifting and ensure that the push-pull test of the adjustment handle 8 is carried out stably.

[0021] The clamping fixture 2 includes a pressure rod 21, a drive rod 22, and a base 23; the pressure rod 21 is hinged to the base 23 to rotate up and down relative to the base 23, the drive rod 22 is hinged to the base 23 to rotate up and down relative to the base 23, and the drive rod 22 is hinged to the pressure rod 21 to drive the pressure rod 21 to rotate up and down when the drive rod 22 rotates up and down; when the pressure rod 21 rotates downward, it is used to clamp the edge of the seat chassis 7.

[0022] Specifically, the base 23 has a first hinge portion 231 and a second hinge portion 232 at both ends; the pressure rod 21 has a first connecting rod portion 211 at one end and a pressure block 25 at the other end, which is used to abut against the edge of the seat chassis 7; the drive rod 22 has a second connecting rod portion 221 at one end and a handle 26 at the other end; the two ends of the first connecting rod portion 211 are respectively hinged to the second connecting rod portion 221 and the first hinge portion 231 by pin shafts; a third connecting rod 24 is provided between the drive rod 22 and the base 23, and the two ends of the third connecting rod 24 are respectively hinged to the second connecting rod portion 221 and the second hinge portion 232 by pin shafts.

[0023] The drive rod 22 of this technical solution uses the lever principle to link with the pressure rod 21. By rotating the drive rod 22, the pressure rod 21 can be easily rotated to press and fix the edge of the seat chassis 7. The operation is simple, fast and easy to implement.

[0024] The push-pull drive mechanism 4 is a cylinder; the cylinder includes a cylinder body 41 and a telescopic rod 42 that can extend and retract relative to the cylinder body 41; the cylinder body 41 is fixed on the workbench 1, and the telescopic rod 42 is fixedly connected to the push-pull seat 3.

[0025] The seat chassis adjustment handle push-pull testing machine also includes a frame 5 and a central control box 6 fixed on the frame 5; the workbench 1 is fixed on the top of the frame 5, and the central control box 6 is located below the workbench 1. The central control box 6 has a built-in control circuit board (not shown in the attached figure); the control circuit board is electrically connected to the push-pull drive mechanism 4 to control the start and stop of the push-pull drive mechanism 4; the central control box 6 is provided with an operation button 61 that is electrically connected to the control circuit board.

[0026] This technical solution controls the start and stop of the push-pull drive mechanism 4 by operating the central control box 6, thereby controlling the number of push-pull movements of the push-pull seat 3, and realizing automated testing of the push-pull of the seat chassis 7 adjustment handle 8.

[0027] In use, the handle 82 of the adjustment handle 8 is placed into the through groove 31 of the push-pull seat 3, so that the push-pull drive mechanism 4 drives the push-pull seat 3 to move radially, thereby driving the adjustment handle 8 to push and pull relative to the seat chassis 7 for testing.

[0028] The above preferred embodiments should be regarded as illustrative examples of the embodiments of the present application. Any technical deductions, substitutions, improvements, etc. that are similar to or based on the present application should be considered within the scope of protection of this patent.

Claims

1. A test machine for pushing and pulling a seat chassis adjustment handle, characterized in that: Used to test the push-pull movement of the adjustment handle on the seat chassis; It includes a worktable and positioning columns, clamping fixtures and push-pull mechanisms mounted on the worktable; The workbench is provided with a fixed station for placing the seat chassis. The positioning posts include multiple ones, and each positioning post is distributed around the fixed station. Each positioning post is used to be inserted into the mounting hole on the seat chassis for positioning. The clamping fixture is used to clamp the edge of the seat chassis; The push-pull mechanism includes a push-pull base and a push-pull drive mechanism; the adjusting handle includes a rod and a handle bent relative to the rod; the push-pull base is provided with a through groove for the handle of the adjusting handle to be inserted; the push-pull base can move radially to approach or move away from the fixed position; the push-pull drive mechanism is connected to the push-pull base to drive the push-pull base to move radially.

2. The seat chassis adjustment handle push-pull testing machine according to claim 1, characterized in that: The clamping fixture includes a pressure rod, a drive rod, and a base; The pressure rod is hinged to the base to rotate up and down relative to the base, the drive rod is hinged to the base to rotate up and down relative to the base, and the drive rod is hinged to the pressure rod to drive the pressure rod to rotate up and down when the drive rod rotates up and down; The pressure rod is used to press the edge of the seat chassis when it rotates downwards.

3. The seat chassis adjustment handle push-pull testing machine according to claim 2, characterized in that: The base is provided with a first hinge part and a second hinge part at its two ends respectively; One end of the pressure rod is provided with a first connecting rod portion, and the other end of the pressure rod is provided with a pressure block, which is used to abut against the edge of the seat chassis; One end of the drive rod is provided with a second connecting rod portion, and the other end of the drive rod is provided with a handle; The two ends of the first connecting rod are respectively hinged to the second connecting rod and the first hinge part via pin shafts; A third connecting rod is provided between the drive rod and the base, and the two ends of the third connecting rod are respectively hinged to the second connecting rod part and the second hinge part through pin shafts.

4. The seat chassis adjustment handle push-pull testing machine according to claim 1, characterized in that: The push-pull drive mechanism is a cylinder; The cylinder includes a cylinder body and a telescopic rod that can extend and retract relative to the cylinder body; The cylinder body is fixed on the workbench, and the telescopic rod is fixedly connected to the push-pull seat.

5. The seat chassis adjustment handle push-pull testing machine according to claim 4, characterized in that: It also includes the rack and the central control box fixed on the rack; The workbench is fixed to the top of the frame, and the central control box is located below the workbench. The central control box contains a built-in control circuit board; the control circuit board is electrically connected to the push-pull drive mechanism. The central control box is equipped with operation buttons that are electrically connected to the control circuit board.

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