Headrest guide sleeve for vehicle

Abstract

The utility model relates to the technical field of automobile manufacturing, in particular to a headrest guide sleeve for an automobile. In order to solve the problem of high manufacturing cost caused by low assembly qualification rate of the existing headrest guide sleeve for the vehicle, the utility model provides the headrest guide sleeve for the vehicle, the headrest guide sleeve for the vehicle comprises a cap and a guide pipe, a plurality of clamping convex blocks are arranged on the inner wall of the cap, and the clamping convex blocks are uniformly distributed in the circumferential direction; the clamping end of the guide pipe is provided with a clamping disc, and the clamping face, opposite to the cap, of the clamping disc is provided with a clamping groove used for clamping the clamping protruding block. According to the headrest guide sleeve for the vehicle, the clamping lugs which are uniformly distributed are connected with the clamping disc on the guide pipe in a clamping manner, so that the clamping lugs are uniformly stressed, the situation that a single clamping lug is deformed due to overlarge stress and even clamping failure is caused is avoided, the assembly qualification rate when the cap is connected with the guide pipe in a clamping manner is improved, and the production efficiency is improved. And the manufacturing cost of the headrest guide sleeve for the vehicle is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, in particular to a vehicle headrest guide sleeve. Background Art

[0002] With the continuous development of the automobile industry, consumers' requirements for the quality of automobiles are also getting higher and higher. When a vehicle headrest is installed on a seat, the skeleton is usually inserted into a headrest guide sleeve that is fixedly installed on the seat backrest. The existing vehicle headrest guide sleeve includes a guide tube and a cap, and the cap and the guide tube are connected by three pairs of offset semi-circular assembly snap fasteners, which is difficult to assemble, and the assembly qualification rate is only 65%, which easily causes waste of components and high manufacturing costs. Content of the Utility Model

[0003] In order to solve the problem of high manufacturing cost caused by the low assembly qualification rate of the existing vehicle headrest guide sleeve, the utility model provides a vehicle headrest guide sleeve, which includes a cap and a guide tube. A plurality of clamping bumps are arranged on the inner wall of the cap, and the clamping bumps are evenly distributed in the circumferential direction; a clamping disc is arranged at the clamping end of the guide tube, and a clamping groove for clamping the clamping bumps is arranged on the clamping surface of the clamping disc facing away from the cap. In this way, the vehicle headrest guide sleeve of the utility model uses a plurality of evenly distributed clamping bumps to be clamped and connected with the clamping disc on the guide tube, which can make the clamping bumps receive uniform force, avoid deformation of a single clamping bump due to excessive force, and even cause clamping failure, improve the assembly qualification rate when the cap and the guide tube are clamped and connected, and reduce the manufacturing cost of the vehicle headrest guide sleeve of the utility model.

[0004] Preferably, four clamping bumps are arranged on the cap, and the clamping bumps are arc-shaped blocks. In this way, setting four clamping bumps on the cap is simple and convenient; the clamping bumps are set as arc-shaped blocks, which is convenient for clamping, can improve the assembly qualification rate of the vehicle headrest guide sleeve of the utility model, and reduce the manufacturing cost of the vehicle headrest guide sleeve of the utility model. Further, the bottom width w of the clamping bump is 8 mm. In this way, compared with the semi-circular assembly snap fastener with a bottom width of 17 mm in the existing vehicle headrest guide sleeve, the size is smaller and the clamping is convenient.

[0005] Preferably, at least one axial clamping block is provided on the inner wall of the cap, and an axial clamping groove is provided on the clamping disc of the guide tube. When the cap is clamped and connected to the guide tube, the axial clamping block is clamped in the axial clamping groove. In this way, in the headrest guide sleeve for vehicles of the present invention, when the cap is clamped and connected to the guide tube, the axial clamping block and the axial clamping groove can be used to cooperate to prevent the cap and the guide tube from generating abnormal noises due to shaking and misalignment during the driving of the vehicle, which affects the driving and riding experience. Further, the axial clamping block is connected to the tail end of the clamping convex block to form an L-shaped structure. In this way, the axial clamping block and the clamping convex block are connected to form an L-shaped structure, which can not only improve the strength of the axial clamping block and the clamping convex block, but also facilitate the clamping connection and improve the assembly efficiency of the headrest guide sleeve for vehicles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 is a schematic structural diagram of the headrest guide sleeve for vehicles of the present invention;

[0007] Figure 2 is a schematic structural diagram of the cap in the headrest guide sleeve for vehicles of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0008] Next, in combination with Figure 1 and 2 , the headrest guide sleeve for vehicles of the present invention will be described in detail.

[0009] As shown in Figure 1 and 2As shown in the figure, the headrest guide sleeve for vehicles of the present utility model includes a cap 1 and a guide tube 2. A plurality of clamping bumps 11 are provided on the inner wall of the cap 1, and the clamping bumps 11 are evenly distributed in the circumferential direction; a clamping disc (not shown in the figure) is provided at the clamping end of the guide tube 2, and a clamping groove (not shown in the figure) for clamping the clamping bumps 11 is provided on the clamping surface of the clamping disc facing away from the cap 1. In this way, the headrest guide sleeve for vehicles of the present utility model is clamped and connected to the clamping disc on the guide tube 2 by a plurality of evenly distributed clamping bumps 11, which can make the clamping bumps 11 receive uniform force, avoid deformation of a single clamping bump 11 due to excessive force, and even cause clamping failure, improve the fitting qualification rate when the cap 1 is clamped and connected to the guide tube 2, and reduce the manufacturing cost of the headrest guide sleeve for vehicles of the present utility model. Preferably, four clamping bumps 11 are provided on the cap 1, and the clamping bumps 11 are arc-shaped blocks. In this way, setting four clamping bumps 11 on the cap 1 is simple and convenient; the clamping bumps 11 are set as arc-shaped blocks, which is convenient for clamping, can improve the fitting qualification rate of the headrest guide sleeve for vehicles of the present utility model, and reduce the manufacturing cost of the headrest guide sleeve for vehicles of the present utility model. Preferably, the bottom width w of the clamping bump 11 is 8 mm. In this way, compared with the semi-circular assembly buckle with a bottom width of 17 mm in the existing headrest guide sleeve for vehicles, the size is smaller and the clamping is convenient. Preferably, at least one axial clamping block 12 is provided on the inner wall of the cap 1, and an axial clamping groove (not shown in the figure) is provided on the clamping disc of the guide tube 2. When the cap 1 is clamped and connected to the guide tube 2, the axial clamping block 12 is clamped in the axial clamping groove. In this way, in the headrest guide sleeve for vehicles of the present utility model, when the cap 1 is clamped and connected to the guide tube 2, the axial clamping block 12 and the axial clamping groove can be used to cooperate to avoid abnormal noises caused by the cap 1 and the guide tube 2 being displaced due to shaking during the driving of the vehicle, which affects the driving and riding experience. Preferably, the axial clamping block 12 is connected to the clamping bump 11 at the tail end of the clamping bump 11 to form an L-shaped structure. In this way, the axial clamping block 12 and the clamping bump 11 are connected to form an L-shaped structure, which can not only improve the strength of the axial clamping block 12 and the clamping bump 11, but also facilitate the clamping connection and improve the assembly efficiency of the headrest guide sleeve for vehicles of the present utility model.

Claims

1. A headrest guide sleeve for a vehicle, characterized in that: The headrest guide sleeve for the vehicle comprises a cap and a guide tube, wherein a plurality of snap-fitting protrusions are arranged on the inner wall of the cap, and the snap-fitting protrusions are evenly distributed in the circumferential direction; a snap-fitting disc is arranged at the snap-fitting end of the guide tube, and a snap-fitting groove for snapping the snap-fitting protrusions is arranged on the snap-fitting surface of the snap-fitting disc facing away from the cap.

2. The headrest guide sleeve for a vehicle according to claim 1, characterized in that: The cap is provided with four clamping protrusions, and the clamping protrusions are arc-shaped blocks.

3. The headrest guide sleeve for a vehicle according to claim 2, characterized in that: The bottom width w of the clamping protrusion is 8 mm.

4. The headrest guide sleeve for a vehicle according to any one of claims 1 to 3, characterized in that: At least one axial clamping block is arranged on the inner wall of the cap, and an axial clamping groove is arranged on the clamping plate on the guide tube. When the cap is clamped and connected with the guide tube, the axial clamping block is clamped in the axial clamping groove.

5. The headrest guide sleeve for a vehicle according to claim 4, characterized in that: The axial clamping block is connected to the clamping protrusion at the rear end of the clamping protrusion to form an L-shaped structure.

Images