Automobile seat headrest connecting and adjusting structure

Abstract

The utility model relates to the technical field of automobile parts, and disclose a car seat headrest connecting adjustment structure, including seat headrest structure, the bottom of headrest body also is equipped with the positioning bent pole, and the lower end outside of pillow pole and positioning bent pole is equipped with fixed component, the outer surface of positioning bent pole is equipped with the limit component, when the height position of seat headrest structure is adjusted, the positioning bent pole that is provided with lateral groove moves in the inside of the middle rod groove of installing the limit block, after the position adjustment of seat headrest structure, push the pull -out board to move to the side of positioning bent pole, and the positioning rod is inserted into the inside of the positioning hole, and the position of positioning bent pole is fixed, namely the position of seat headrest structure is fixed, reduce the complexity degree of component for use when adjusting the height of seat headrest structure, avoid the repeated compression, stretching or torsional load of spring in long -term use, lead to spring lose elasticity, cannot restore to original shape, influence the height adjustment of seat headrest structure.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an adjustable headrest connection structure for automotive seats. Background Technology

[0002] Car seat headrests are designed to provide support for the head and neck, especially in the event of a collision, to reduce the risk of cervical spine injury. Headrests consist of an outer layer and a frame. The outer layer materials include blow-molded materials, thin-shell polyvinyl chloride foam, and fabrics or artificial leather, while the frame is made of materials such as stamped steel sheets or injection-molded plastic. Based on installation method, they are divided into integrated and separate structures; separate structures are mostly used in low-back seats and are fixed with pins.

[0003] A vehicle seat headrest adjustment structure, disclosed in CN217730287U, includes a headrest rod, a headrest plate, and a rod sleeve. The headrest plate is located on the upper part of the headrest rod. The headrest rod has two hollow vertical rods with open upper ends. The rod sleeve has mounting holes for inserting the vertical rods. The vertical rods have lateral holes communicating with the interior. A tensioning member is movably disposed in the lateral holes. An insert rod is disposed in the vertical rod. A spring is disposed between the vertical rod and the insert rod. An outward discharge structure is disposed between the lower end of the insert rod and the tensioning member. A lifting structure is slidably disposed on the headrest plate. The lifting structure is drivenly connected to the insert rod. By utilizing the tensioning effect of the tensioning member on the mounting holes on the rod sleeve, the headrest can be fixed at any height. In addition, the lifting structure for unlocking the tensioning member is disposed on the headrest plate, which can be operated with one hand.

[0004] The aforementioned patent proposes that by using a combination of spring and insert rod, the tensioning element can be used to tighten and fix the rod sleeve fixed on the seat, and the headrest can be positioned at any height by using a lifting structure. However, in actual use, the spring may fail, which will cause the headrest to be unable to be easily adjusted when needed, and may even loosen in the event of a vehicle collision. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable headrest connection structure for automobile seats to solve the problem mentioned in the background art where spring failure leads to the inability to easily adjust the headrest when needed.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a car seat headrest connection and adjustment structure, including a seat headrest structure, wherein the seat headrest structure includes a headrest body and headrest rods installed on both sides of the bottom end of the headrest body, and a positioning bent rod is also installed at the bottom end of the headrest body, and the positioning bent rod is located between the two sets of headrest rods, a fixing member is installed on the lower outer side of the headrest rod and the positioning bent rod, a limiting member is installed on the outer surface of the positioning bent rod, and the limiting member is located at the top of the fixing member;

[0007] The outer surface of the positioning bend is provided with a side groove, and the inner wall of the side groove is provided with a positioning hole.

[0008] Preferably, the limiting component includes a fixed ring A and a fixed ring B disposed at the lower end of the fixed ring A. The outer surfaces of the fixed ring A and the fixed ring B are provided with outer rotating grooves. Outer rotating rings are movably installed on the outer sides of the fixed ring A and the fixed ring B, and connecting strips are installed between the outer rotating rings.

[0009] Preferably, a positioning plate is installed between the connecting strips, and a positioning rod is slidably installed at the middle end of the positioning plate.

[0010] Preferably, a draw plate is installed at one end of the positioning rod, and a limit ring is installed on the outer surface of the positioning rod.

[0011] Preferably, the fixing member includes a fixing strip and a bent rod groove extending through both ends of the fixing strip.

[0012] Preferably, a central groove is provided through the middle end of the fixing strip, and a limit block is installed on one side of the inner wall of the central groove.

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

[0014] 1. The car seat headrest connection and adjustment structure of this utility model allows for the use of a hand-held pull plate to move the positioning rod outwards. One end of the positioning rod moves out of the positioning hole, and the headrest body moves away from or closer to the top of the backrest. This reduces the complexity of the components used when adjusting the height of the seat headrest structure and avoids the spring from experiencing repeated compression, stretching, or torsional loads during long-term use, which could cause the spring to lose its elasticity and fail to return to its original shape, thus affecting the height adjustment of the seat headrest structure.

[0015] 2. The car seat headrest connection adjustment structure of this utility model, when adjusting the height position of the seat headrest structure, the headrest body drives the headrest rod to move within the curved rod groove to maintain the angle of the seat headrest structure. The positioning curved rod with the side groove moves within the central rod groove where the limiting block is installed. After the position of the seat headrest structure is adjusted, the pull plate is pushed to move to one side of the positioning curved rod, and the positioning rod is inserted into the positioning hole to fix the position of the positioning curved rod, that is, to fix the position of the seat headrest structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the headrest of this utility model;

[0018] Figure 3This is a three-dimensional structural diagram of the fixing component of this utility model;

[0019] Figure 4 For the present utility model Figure 1 Enlarged view of point A in the middle.

[0020] In the diagram: 1. Seat headrest structure; 11. Headrest body; 12. Headrest rod; 13. Positioning bent rod; 131. Side groove; 132. Positioning hole; 14. Fixing component; 141. Fixing strip; 142. Bent rod groove; 143. Center rod groove; 144. Limiting block; 15. Limiting component; 151. Fixing ring A; 152. Fixing ring B; 153. Outer rotating groove; 154. Outer rotating ring; 155. Connecting strip; 156. Positioning plate; 157. Positioning rod; 158. Limiting ring; 159. Drawer plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: Please refer to Figure 1 and Figure 4 The car seat headrest connection and adjustment structure includes a headrest structure 1, which includes a headrest body 11 and headrest rods 12 installed on both sides of the bottom end of the headrest body 11. The bottom end of the headrest body 11 is also equipped with a positioning bent rod 13, which is located between the two sets of headrest rods 12. A fixing member 14 is installed on the lower outer side of the headrest rods 12 and the positioning bent rods 13. A limiting member 15 is installed on the outer surface of the positioning bent rods 13, and the limiting member 15 is located at the top of the fixing member 14. The curvature of the positioning bent rods 13 is consistent with that of the headrest rods 12.

[0023] The outer surface of the positioning bent rod 13 is provided with a side groove 131, and the inner wall of the side groove 131 is provided with a positioning hole 132.

[0024] The limiting component 15 includes a fixing ring A151 and a fixing ring B152 disposed at the lower end of the fixing ring A151. The fixing ring B152 is fixedly wrapped and installed at the top of the car seat. The outer surfaces of the fixing rings A151 and B152 are provided with an outer rotating groove 153. An outer rotating ring 154 is movably installed on the outer side of the fixing rings A151 and B152. A connecting strip 155 is installed between the outer rotating rings 154. The outer rotating rings 154 and the connecting strip 155 are located outside the top of the car seat and are visible to the naked eye. The connecting strip 155 fixes the fixing rings A151 and B152, so that one set of fixing rings can drive the other set of fixing rings to rotate. The outer rotating ring 154 is limited and installed on the outer side where the fixing rings A151 and B152 are provided.

[0025] A positioning plate 156 is installed between the connecting strips 155. A positioning rod 157 is slidably installed at the middle end of the positioning plate 156. The positioning rod 157 is adapted to the positioning hole 132.

[0026] A pull plate 159 is installed at one end of the positioning rod 157, and a limit ring 158 is installed on the outer surface of the positioning rod 157. The diameter of the limit ring 158 is the same as the diameter of the positioning hole 132. The limit ring 158 restricts the movement range of the positioning rod 157 to prevent the positioning rod 157 from falling off when the seat headrest structure 1 is removed, thus affecting the fixing effect on the seat headrest structure 1.

[0027] In this embodiment: the fixing component 14 is fixedly installed in the seat frame, and the limiting component 15 is installed at the top of the backrest. When adjusting the height of the seat headrest structure 1 at the top of the backrest, the operator can hold the pull plate 159 and pull the positioning rod 157 outward to move it. One end of the positioning rod 157 moves out of the positioning hole 132. The limiting ring 158 installed on the outer surface of the positioning rod 157 restricts its range of movement to prevent the positioning rod 157 from falling. At this time, the operator can adjust the height of the seat headrest structure 1. The headrest body 11 is away from or close to the top of the backrest, which reduces the complexity of the components used when adjusting the height of the seat headrest structure 1 and avoids the spring from experiencing repeated compression, stretching or torsional loads during long-term use, causing the spring to lose its elasticity and fail to return to its original shape, thus affecting the height adjustment of the seat headrest structure 1.

[0028] Example 2: This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 2-4 The fixing member 14 includes a fixing strip 141 and a bent rod groove 142 that passes through both ends of the fixing strip 141. The pillow rod 12 is slidably installed inside the bent rod groove 142 and the pillow rod 12 is adapted to the bent rod groove 142.

[0029] A central rod groove 143 is provided through the middle end of the fixing strip 141. A limiting block 144 is installed on one side of the inner wall of the central rod groove 143. The side groove 131, which is provided, is inside the central rod groove 143 where the limiting block 144 is installed, and restricts the movement angle of the seat headrest structure 1.

[0030] In this embodiment: when adjusting the height of the headrest structure 1, the headrest body 11 drives the headrest rod 12 to move within the curved rod groove 142, maintaining the angle of the headrest structure 1. Since the curvature of the headrest rod 12 and the positioning curved rod 13 are consistent, the positioning curved rod 13 also moves within the center rod groove 143 while the headrest rod 12 moves within the curved rod groove 142. Because the outer surface of the positioning curved rod 13 has a side groove 131, and the center rod groove 143 is installed on one side of the center rod groove 143, the positioning curved rod 13 with the side groove 131 is positioned within the limit block 144. The interior of the center rod groove 143 moves to limit the angle of the positioning bent rod 13. After the position of the seat headrest structure 1 is adjusted, the pull plate 159 is pushed to move to one side of the positioning bent rod 13. The positioning rod 157 is inserted into the interior of the positioning hole 132 to fix the position of the positioning bent rod 13, that is, to fix the position of the seat headrest structure 1. When the seat headrest structure 1 is removed, after the positioning rod 157 is pulled out of the interior of the positioning hole 132, the outer rotating ring 154 and the limiting ring 158 can be rotated to adjust the position of the pull plate 159 and the positioning rod 157, so that the seat headrest structure 1 can be removed with one hand.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A car seat headrest connection and adjustment structure, including a seat headrest structure (1), characterized in that: The headrest structure (1) includes a headrest body (11) and pillow rods (12) installed on both sides of the bottom end of the headrest body (11). The bottom end of the headrest body (11) is also equipped with a positioning bent rod (13), and the positioning bent rod (13) is located between the two sets of pillow rods (12). The lower outer side of the pillow rods (12) and the positioning bent rods (13) is equipped with a fixing member (14). The outer surface of the positioning bent rod (13) is equipped with a limiting member (15), and the limiting member (15) is located at the top of the fixing member (14). The outer surface of the positioning bend (13) is provided with a side groove (131), and the inner wall of the side groove (131) is provided with a positioning hole (132).

2. The car seat headrest connection and adjustment structure according to claim 1, characterized in that: The limiting member (15) includes a fixed ring A (151) and a fixed ring B (152) disposed at the lower end of the fixed ring A (151). The outer surfaces of the fixed ring A (151) and the fixed ring B (152) are provided with an outer rotating groove (153). An outer rotating ring (154) is movably installed on the outer side of the fixed ring A (151) and the fixed ring B (152). A connecting strip (155) is installed between the outer rotating rings (154).

3. The car seat headrest connection and adjustment structure according to claim 2, characterized in that: A positioning plate (156) is installed between the connecting strips (155), and a positioning rod (157) is slidably installed at the middle end of the positioning plate (156).

4. The car seat headrest connection and adjustment structure according to claim 3, characterized in that: A draw plate (159) is installed at one end of the positioning rod (157), and a limit ring (158) is installed on the outer surface of the positioning rod (157).

5. The car seat headrest connection and adjustment structure according to claim 1, characterized in that: The fixing member (14) includes a fixing strip (141) and a bent rod groove (142) that runs through both ends of the fixing strip (141).

6. The car seat headrest connection and adjustment structure according to claim 5, characterized in that: The middle end of the fixing strip (141) is provided with a central rod groove (143), and a limit block (144) is installed on one side of the inner wall of the central rod groove (143).

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