Headrest rod of automobile seat

Abstract

The utility model provides an automobile seat headrest rod, and relates to the technical field of automobile accessories, the automobile seat headrest rod comprises main rod bodies and a framework, the framework is a metal plate body, two grooves are symmetrically arranged on one side of the framework left and right, the number of the main rod bodies is two, and the two main rod bodies are respectively welded and combined with the two grooves of the framework. An end head is arranged at the combined end part of the main rod body and the framework groove in a penetrating manner; a U-shaped supporting rod is arranged at the end, close to the main rod body, of the framework. Compared with an existing combined structure of a plate body and a rod body, the supporting performance of the inclination angle of the plate body structure is improved through the supporting rod expanded on the framework plate body, and the supporting rod structure is further reinforced by matching with the connecting welded pipe arranged between the supporting rod and the framework. And meanwhile, axial sliding adjustment can be carried out on the end part of the supporting rod by utilizing an inner supporting ring and a twisting disc which are in sliding combination in the connecting welded pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a headrest rod for an automobile seat. Background Art

[0002] Car seat headrests are usually divided into separate headrests, integral headrests and embedded headrests. The car seat headrest structure is composed of three major parts: headrest rod frame, headrest cushion, and headrest adjustment device. As the basis of the overall installation and supporting structure, the headrest rod frame determines the main performance of the headrest structure.

[0003] The existing headrest rod structure often adopts a combination of double rods and a bracket plate. When it is expanded and arranged by relying on a headrest pad and a headrest adjustment device, it mainly realizes the support function of the pillow structure. However, with the adjustment action of the pillow and the change of the position of the rod body, the fixed structural support performance of the rod body and the bracket plate is weakened when the seat inclination angle changes, and it needs to be reinforced by the external cushion structure of the headrest, so that the support reliability of the existing headrest rod structure is greatly affected by the adjustment position of the seat. Utility Model Content

[0004] In view of the above technical problems existing in the prior art, a headrest rod for a car seat is provided.

[0005] The purpose and effect of the utility model are achieved by the following specific technical means:

[0006] A car seat headrest rod, comprising a main rod body and a frame, wherein the frame is a sheet metal plate body, and two grooves are symmetrically arranged on one side of the frame, and two main rod bodies are arranged in total, and the two main rod bodies are respectively welded and assembled with the two grooves of the frame, and a terminal is arranged through the combined end of the main rod body and the frame groove;

[0007] A U-shaped support rod is provided at one end of the skeleton close to the main rod body, and connecting welded pipes are provided between the two ends of the support rod and the skeleton. An inner supporting ring that slides with the support rod is provided in the connecting welded pipe, and a torsion plate is fixed at the outer end of the connecting welded pipe, an inner ring is rotatably provided in the torsion plate, and a steel wire cable is combined between the inner ring and the inner supporting ring along the axial direction of the end of the support rod.

[0008] Furthermore, an end of the main rod body close to the frame is formed with an outward arched bend.

[0009] Furthermore, a mounting head is provided at one end of the main rod body relative to the frame, an inner rod tube is provided through the mounting head into the main rod body, and an inner lining tube is clamped between the outer side of the inner rod tube and the inner wall of the main rod body.

[0010] Furthermore, the connecting welded pipe is a U-shaped pipe sleeve structure, and the connecting welded pipe is buckled with the end of the support rod.

[0011] Furthermore, compression spring rings are distributed in an annular shape inside the inner ring and the torsion plate.

[0012] Furthermore, a crankshaft is provided through the front and rear ends of the connecting welded pipe and the supporting rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] Compared with the existing combined structure of a plate body and a rod body, this type of automobile seat headrest rod improves the supporting performance of the inclination angle of the plate body structure by extending the support rod on the skeleton plate body, and cooperates with the connecting weld pipe arranged between the support rod and the skeleton to further strengthen the support rod structure. At the same time, the inner supporting ring and the torsion plate of the sliding combination in the connecting weld pipe can be used to perform axial sliding adjustment with the end of the support rod. When the overall angle of the headrest changes, the sliding of the inner supporting ring, the connecting weld pipe and the support rod can be used to fine-tune the supporting end point of the support rod, so as to ensure that the supporting midpoint of the headrest rod structure matches the headrest structure, thereby improving the practicality and reliability of the headrest rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal plane structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the side planar structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal planar structure of the connecting welded pipe of the utility model.

[0019] Markings in the figure: 1-main rod body; 2-skeleton; 3-support rod; 4-mounting head; 5-inner rod tube; 6-inner liner tube; 7-connecting welded pipe; 8-end; 9-torsion plate; 10-inner support ring; 11-crankshaft; 12-inner ring. DETAILED DESCRIPTION

[0020] See also Figure 1-4 , the embodiments of the utility model are further described;

[0021] A car seat headrest rod, comprising a main rod body 1 and a frame 2, the frame 2 is a sheet metal plate, and one side of the frame 2 is symmetrically provided with two grooves, a total of two main rod bodies 1 are provided, and the two main rod bodies 1 are respectively welded and combined with the two grooves of the frame 2, and a terminal 8 is penetrated and provided at the combined end of the main rod body 1 and the groove of the frame 2;

[0022] A U-shaped support rod 3 is provided at one end of the skeleton 2 close to the main rod body 1, and connecting welded pipes 7 are provided between the two ends of the support rod 3 and the skeleton 2. An inner supporting ring 10 that slides with the support rod 3 is provided in the connecting welded pipe 7, and a torsion plate 9 is fixed at the outer end of the connecting welded pipe 7. An inner ring 12 is rotatably provided in the torsion plate 9, and a steel wire cable is combined between the inner ring 12 and the inner supporting ring 10 along the axial direction of the end of the support rod 3.

[0023] The headrest rod is used to support and install the seat headrest through the headrest frame structure composed of the main rod body 1 and the frame 2. The frame 2 has a plurality of screw holes for installing and fixing the seat headrest. The main rod body 1 serves as a connecting structure between the frame 2 structure and the car seat frame. In terms of its support, the connecting ends of the main rod body 1 and the frame 2 are adapted to be connected with the groove to ensure the connection accuracy. At the same time, the end 8 is combined in the groove position to provide horizontal point support for the connecting midpoint of the main rod body 1 and the frame 2, so as to improve the support strength of the pillow surface of the frame 2.

[0024] Compared with the existing headrest rod structure, the headrest rod uses the support rod 3 extended on the frame 2 to assist in supporting the headrest structure. The support rod 3 is connected and fixed to the frame 2 through a connecting welded pipe 7. At the same time, the inner support ring 10 in the connecting welded pipe 7 is slidably matched with the U-shaped end of the support rod 3. A space for axial sliding adjustment of the end of the support rod 3 is formed in the actual connecting welded pipe 7. On this basis, an inner ring 12 connected and combined with the inner support ring 10 in the connecting welded pipe 7 is also used. The inner ring 12 in the contracted state acts on the axial structure of the inner support ring 10 along the ring diameter of the torsion disk 9 and the surface tension of the wire cable to achieve the situation of traction stabilization of the inner support ring 10 and the end of the support rod 3. When the headrest is tilted, the end of the support rod 3 needs to overcome the traction force of the inner ring 12 and the wire cable to make the end of the support rod 3 perform cooperative axial adjustment in the sliding space of the connecting welded pipe 7 to meet the change of the support point position of the support rod 3 under different headrest tilt angles, thereby improving the reliability and applicability of the headrest rod.

[0025] Preferably, an end of the main rod body 1 close to the frame 2 is formed with an outwardly arched bend, and the outwardly arched bend allows the pillow surface of the frame 2 close to the headrest to be supported forward by the main rod body 1 to improve the lateral support strength of the pillow surface of the frame 2.

[0026] On the basis of the above, a mounting head 4 is provided at one end of the main rod body 1 relative to the skeleton 2, and an inner rod tube 5 is provided through the mounting head 4 in the main rod body 1, and an inner lining tube 6 is clamped between the outer side of the inner rod tube 5 and the inner wall of the main rod body 1. Considering the influence of seat adjustment and change of headrest height on the support height strength and reliability of the main rod body 1, the inner rod tube 5 and inner lining tube 6 filled in the mounting head 4 are used to reinforce the structure of the middle section of the main rod body 1 to meet the support strength requirements of the headrest at different support heights.

[0027] Preferably, the connecting weld pipe 7 is a U-shaped pipe sleeve structure, and the connecting weld pipe 7 is buckled with the end of the support rod 3. Compared with the fully enclosed welded pipe body, the U-shaped pipe sleeve structure can provide a radial movable space for the connecting end of the connecting weld pipe 7 and the support rod 3 to prevent the support rod 3 and the connecting weld pipe 7 from being compressed and bent in the tilting direction when the headrest is tilted.

[0028] Preferably, compression spring rings are distributed in a ring shape on the inner side between the inner ring 12 and the torsion disk 9. While the end of the support rod 3 needs to overcome the traction force of the inner ring 12 and the steel wire cable, the filled compression spring rings provide a relative elastic reaction force for the annular movement of the inner ring 12 along the torsion disk 9, so as to further increase the traction strength of the inner ring 12 and the steel wire cable and ensure the combined stability of the support rod 3 and the connecting welded pipe 7.

[0029] Preferably, a crankshaft 11 is provided through the front and rear ends of the connecting weld pipe 7 and the support rod 3. The curved crankshaft 11 provides a radial support point for the radial position of the connection between the support rod 3 and the connecting weld pipe 7, so as to improve the radial support strength of the end of the support rod 3 when it contacts the headrest structure.

[0030] The implementation method of the device is that the headrest frame structure composed of the main rod body 1 and the frame 2 is used to support and install the seat headrest. The surface of the frame 2 is provided with a plurality of screw holes for installing and fixing the seat headrest. The main rod body 1 serves as a connecting structure between the frame 2 structure and the car seat frame. Specifically, the mounting head 4 at the end of the main rod body 1 is a plug-in combination structure.

[0031] The support is mainly provided by the frame 2, and the end of the headrest is supported in cooperation with the support rod 3. When the inclination angle of the seat or the headrest changes, the inner ring 12 in the contracted state acts on the axial structure of the inner support ring 10 along the ring diameter of the torsion disk 9 and the surface tension of the wire cable, so as to achieve the effect of pulling and stabilizing the inner support ring 10 and the end of the support rod 3. When the elevation angle of the headrest changes when it is tilted, the end of the support rod 3 needs to overcome the traction force of the inner ring 12 and the wire cable, so that the end of the support rod 3 can move axially in the sliding space of the connecting welded pipe 7 to match the overall inclination angle of the headrest, maintain the matching degree between the support point of the entire support rod 3 and the headrest structure, so as to meet the change of the support point of the support rod 3 at different headrest inclination angles.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A car seat headrest rod, characterized in that: It comprises a main rod body (1) and a frame (2), wherein the frame (2) is a sheet metal plate, and one side of the frame (2) is symmetrically provided with two grooves, and a total of two main rod bodies (1) are provided, and the two main rod bodies (1) are respectively welded to the two grooves of the frame (2), and a terminal (8) is provided through the combined end of the main rod body (1) and the groove of the frame (2); A U-shaped support rod (3) is arranged at one end of the skeleton (2) close to the main rod body (1), and a connecting welded pipe (7) is arranged between the two ends of the support rod (3) and the skeleton (2), and an inner supporting ring (10) which is slidably matched with the support rod (3) is arranged in the connecting welded pipe (7), and a torsion plate (9) is fixed at the outer end of the connecting welded pipe (7), and an inner ring (12) is rotatably arranged in the torsion plate (9), and a steel wire cable is axially combined between the inner ring (12) and the inner supporting ring (10) along the end of the support rod (3).

2. The headrest rod of a car seat according to claim 1, characterized in that: An end of the main rod body (1) close to the frame (2) is formed with an outwardly arched bend.

3. The headrest rod of a car seat according to claim 1, characterized in that: The main rod body (1) is provided with a mounting head (4) at one end relative to the frame (2); an inner rod tube (5) is provided through the mounting head (4) in the main rod body (1); and an inner lining tube (6) is provided between the outer side of the inner rod tube (5) and the inner wall of the main rod body (1) to be clamped.

4. The headrest rod of a car seat according to claim 1, characterized in that: The connecting welded pipe (7) is a U-shaped pipe sleeve structure, and the connecting welded pipe (7) is buckled with the end of the support rod (3).

5. The headrest rod of a car seat according to claim 1, characterized in that: Compression spring rings are distributed in an annular manner inside the inner ring (12) and the torsion plate (9).

6. The automobile seat headrest rod according to claim 1, characterized in that: A crankshaft (11) is provided through the front and rear ends of the connection welding pipe (7) and the support rod (3).

Images