A car seat headrest structure with multi-level adjustment

Abstract

This utility model provides a multi-position adjustable car seat headrest structure, including: a support mounting component and a synchronous locking component. A gear shifting component is installed on the inner wall of the support mounting component, and adjustment positioning components are installed at both ends of the gear shifting component. A transmission component is installed at the end of the adjustment positioning component, and the synchronous locking component is installed on the inner walls at both ends of the support mounting component. This multi-position adjustable car seat headrest structure, through the cooperation of the transmission component and the synchronous locking component, can achieve secondary locking, forming a double guarantee with the initial adjustment lock, effectively resisting the impact of bumps, sudden braking, and other conditions. Furthermore, the synchronous locking is performed in real time with angle adjustment, ensuring that the locking component accurately corresponds to the current angle position and locks the headrest at any adjustment level.

Description

Technical Field

[0001] This utility model relates to the field of seat headrest technology, and in particular to a car seat headrest structure with multi-level adjustment. Background Technology

[0002] As a core component for neck support and passive safety protection of drivers and passengers, the design of car seat headrests directly affects ride comfort and collision safety. In the event of a rear-end collision or other accidents, headrests can effectively reduce the risk of whiplash injuries by limiting the extent of head backward movement.

[0003] Existing mechanisms mostly employ a single-sided or single-time locking design, relying entirely on the locking force of a single locking component to maintain positioning. Under conditions such as long-term use leading to component wear, vehicle bumps and impacts, or accidental collisions, the locking structure is prone to loosening or even failure, causing the headrest angle or height to shift. Furthermore, while some advanced adjustment mechanisms have a secondary locking function, the locking operation must be initiated separately after the angle adjustment is completed, such as manually moving the locking pin or pressing the secondary locking button.

[0004] Therefore, it is necessary to provide a car seat headrest structure with multi-level adjustment to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a car seat headrest structure with multi-level adjustment, which solves the problems of insufficient locking reliability of existing seat headrests and the separation of adjustment and secondary locking processes.

[0006] To solve the above-mentioned technical problems, this utility model provides a car seat headrest structure with multi-position adjustment, comprising: a support mounting component and a synchronous locking component. A gear rotation component is installed on the inner wall of the support mounting component. The gear rotation component is used for angle adjustment of the support mounting component. Adjustment positioning components are installed at both ends of the gear rotation component. A transmission component is installed at the end of the adjustment positioning component. The synchronous locking component is installed on the inner wall of both ends of the support mounting component. The synchronous locking component is used for structural locking of the adjustment positioning component.

[0007] Preferably, the support installation assembly includes a support frame, and the inner walls at both ends of the support frame are provided with slot structures for securing the external sponge. Protective structures are installed at both ends of the support frame.

[0008] Preferably, the gear shifting assembly includes a mounting frame, with rotating structures mounted at both ends of the mounting frame. The rotating structures are used to adjust the structural installation of the positioning assembly. An installation structure is mounted on the side of the rotating structure, and a height adjustment assembly is mounted on the bottom of the installation structure. The height adjustment assembly is used to support the height adjustment of the installation assembly. A torsion spring structure is sleeved on the side of the rotating structure.

[0009] Preferably, the adjustment and positioning assembly includes a fixed plate structure and a rotating adjustment component. The fixed plate structure is installed on the inner wall of the side end of the gear shift rotation assembly. An elastic support component is installed on the side end of the rotating adjustment component. A fixed rod structure is installed on the side end of the elastic support component. The fixed rod structure is used to support the angle positioning of the mounting assembly.

[0010] Preferably, the transmission assembly includes a limiting rod, a driven structure is installed on the inner wall of the limiting rod, and a toothed gear structure is installed on the side end of the limiting rod. The toothed gear structure is used for the structural transmission of the synchronous locking assembly.

[0011] Preferably, the synchronous locking assembly includes a guide structure, which is installed on the inner walls of both ends of the support mounting assembly. A meshing transmission component is slidably installed on the inner wall of the guide structure, and an elastic locking rod structure is installed on the side end of the meshing transmission component. The elastic locking rod structure is used for positioning and locking the gear rotation assembly.

[0012] Compared with related technologies, the car seat headrest structure with multi-level adjustment provided by this utility model has the following beneficial effects: This invention provides a multi-position adjustable car seat headrest structure. To improve ease of use, the headrest utilizes a transmission component and a synchronous locking component to achieve secondary locking during adjustment. This double-locking, combined with the initial adjustment lock, effectively resists impacts from bumps and sudden braking, preventing headrest loosening due to wear or failure of a single locking structure, and significantly improving the structural reliability of the locked headrest. Furthermore, during internal structural adjustments, the synchronous locking operates in real-time, ensuring that the locking component precisely locks at any adjustment position. This avoids angle shifts that may occur due to delayed locking after adjustment, guaranteeing accurate locking positions at different settings and improving structural adaptability. Attached Figure Description

[0013] Figure 1 A schematic diagram of a preferred embodiment of a car seat headrest structure with multi-level adjustment provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the gear shift assembly. Figure 3 for Figure 1 The diagram shows the structure of the height adjustment mechanism. Figure 4 for Figure 1 The diagram shows the structural schematic of the support mounting components. Figure 5 for Figure 4The diagram shows an enlarged view of part A.

[0014] The diagram is labeled as follows: 1. Support and mounting assembly; 11. Support frame; 12. Slot structure; 13. Protective structure; 2. Gear rotation assembly; 21. Mounting frame; 22. Rotation structure; 23. Mounting structure; 24. Height adjustment structure; 25. Torsion spring structure; 3. Adjustment and positioning assembly; 31. Fixed plate structure; 32. Rotation adjustment component; 33. Elastic support component; 34. Fixed rod structure; 4. Transmission assembly; 41. Limiting rod; 42. Driven structure; 43. Gear structure with missing teeth; 5. Synchronous locking assembly; 51. Guide structure; 52. Meshing transmission component; 53. Elastic locking rod structure. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of a car seat headrest structure with multi-level adjustment provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the gear shift assembly. Figure 3 for Figure 1 The diagram shows the structure of the height adjustment mechanism. Figure 4 for Figure 1 The diagram shows the structural schematic of the support mounting components. Figure 5 for Figure 4 The diagram shows an enlarged view of part A. A car seat headrest structure with multi-position adjustment includes: a support mounting assembly 1 and a synchronous locking assembly 5. A gear shifting assembly 2 is mounted on the inner wall of the support mounting assembly 1. The gear shifting assembly 2 is used for angle adjustment of the support mounting assembly 1. Adjustment positioning assemblies 3 are mounted at both ends of the gear shifting assembly 2. A transmission assembly 4 is mounted at the end of the adjustment positioning assembly 3. The synchronous locking assembly 5 is mounted on the inner walls at both ends of the support mounting assembly 1 and is used for structural locking of the adjustment positioning assembly 3.

[0017] The support installation assembly 1 includes a support frame 11, and the inner walls of both ends of the support frame 11 are provided with slot structures 12. The slot structures 12 are used for binding the external sponge. Protective structures 13 are installed at both ends of the support frame 11.

[0018] When the headrest is installed and used, the slot structure 12 on the inner wall makes it easy to tie and install the headrest foam in a suitable position, providing convenience for use.

[0019] Among them, the support and installation component 1 includes, but is not limited to, a frame structure and a welded structure; in this embodiment, the support and installation component 1 is preferably a frame structure.

[0020] The gear shifting assembly 2 includes a mounting frame 21, with a rotating structure 22 mounted at both ends of the mounting frame 21. The rotating structure 22 is used to adjust the structural installation of the positioning assembly 3. A mounting structure 23 is mounted on the side of the rotating structure 22. A height adjustment assembly 24 is mounted on the bottom of the mounting structure 23. The height adjustment assembly 24 is used to support the height adjustment of the mounting assembly 1. A torsion spring structure 25 is sleeved on the side of the rotating structure 22.

[0021] When the headrest is being adjusted, the rotating structures 22 at both ends will rotate at an angle along the position of the mounting frame 21, and the position of the structure can be ensured to be accurate under the elastic support of the torsion spring structure 25. In addition, the height adjustment components 24 at both ends of the bottom can easily adjust the height of the headrest.

[0022] The gear shifting assembly 2 includes, but is not limited to, a ratchet and pawl structure and an elastic lever structure; in this embodiment, the gear shifting assembly 2 preferably has an elastic lever structure.

[0023] The adjustment and positioning component 3 includes a fixed plate structure 31 and a rotating adjustment component 32. The fixed plate structure 31 is installed on the inner wall of the side end of the gear rotation component 2. An elastic support component 33 is installed on the side end of the rotating adjustment component 32. A fixed rod structure 34 is installed on the side end of the elastic support component 33. The fixed rod structure 34 is used to support the angle positioning of the mounting component 1.

[0024] When the gear shifting assembly 2 rotates, the rotation adjustment pieces 32 on the inner walls at both ends will rotate and adjust along the inner wall of the fixed plate structure 31, and the fixed rod structure 34, under the elastic support of the elastic support piece 33, can be clamped onto the inner wall of the fixed plate structure 31 to perform structural positioning adjustment.

[0025] The adjusting positioning component 3 includes, but is not limited to, a pin positioning component and a threaded positioning component; in this embodiment, the adjusting positioning component 3 is preferably a pin positioning component.

[0026] The transmission assembly 4 includes a limiting rod 41, a driven structure 42 is installed on the inner wall of the limiting rod 41, and a toothed gear structure 43 is installed on the side end of the limiting rod 41. The toothed gear structure 43 is used for the structural transmission of the synchronous locking assembly 5.

[0027] When the headrest is being adjusted, the limiting rod 41 on the inner wall will rotate synchronously with the inner wall of the adjustment and positioning component 3. Then, the toothed gear structure 43 at the end will mesh and rotate on the inner wall of the synchronous locking component 5, and slide the synchronous locking component 5 to ensure the secondary locking operation of the structure and provide convenience of use.

[0028] The transmission component 4 includes, but is not limited to, a gear transmission structure and a chain transmission structure; in this embodiment, the transmission component 4 is preferably a gear transmission structure.

[0029] The synchronous locking assembly 5 includes a guide structure 51, which is installed on the inner walls of both ends of the support mounting assembly 1. A meshing transmission component 52 is slidably installed on the inner wall of the guide structure 51. An elastic locking rod structure 53 is installed on the side end of the meshing transmission component 52. The elastic locking rod structure 53 is used for positioning and locking the gear rotation assembly 2.

[0030] During the engagement of the transmission component 4, the engagement transmission component 52 will slide to the side. When the engagement is in the appropriate position, the elastic locking rod structure 53 at the side will be positioned synchronously on the inner wall of the adjustment and positioning component 3 to ensure the stable locking of the structure.

[0031] Among them, the synchronous locking component 5 includes, but is not limited to, a locking ring synchronizer structure and a slider synchronous clamping; in this embodiment, the synchronous locking component 5 is preferably a slider synchronous clamping.

[0032] The working principle of the multi-level adjustable car seat headrest structure provided by this utility model is as follows: When adjusting the headrest, first, install the foam backrest onto the inner wall of the support mounting component 1 to alleviate the inconvenience caused by the rigid structure. Then, during daily use and adjustment, the position of the support mounting component 1 can be directly adjusted. When the support mounting component 1 is adjusted, the adjustment positioning components 3 at both ends of the inner wall will automatically pre-position to ensure the structural angle of the support mounting component 1. At this time, when the headrest is adjusted, the transmission component 4 on the inner wall will synchronously perform structural transmission with the rotation of the adjustment positioning component 3. Under the structural transmission of the transmission component 4, the synchronous locking component 5 on the inner wall will be positioned onto the inner wall of the adjustment positioning component 3, forming a double locking effect to reduce the structural loosening of the support mounting component 1 during use.

[0033] Compared with related technologies, the car seat headrest structure with multi-level adjustment provided by this utility model has the following beneficial effects: To enhance ease of use during headrest adjustment, the transmission component 4 and the synchronous locking component 5 work together to achieve secondary locking, creating a double safety mechanism with the initial adjustment lock. This effectively resists impacts from bumps and sudden braking, preventing headrest loosening due to wear or failure of the single locking structure, and significantly improving the structural reliability of the locked headrest. Furthermore, when the internal structure is being adjusted, the synchronous locking operates in real-time, ensuring that the locking component precisely locks at any adjustment position. This avoids angle shifts that may occur due to delayed locking after adjustment, guaranteeing accurate locking positions at different settings and improving structural adaptability.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A car seat headrest structure with multi-level adjustment, characterized in that, include: The support mounting assembly includes a support mounting component and a synchronous locking component. A gear shifting component is installed on the inner wall of the support mounting assembly. The gear shifting component is used for angle adjustment of the support mounting assembly. Adjustment positioning components are installed at both ends of the gear shifting component. A transmission component is installed at the end of the adjustment positioning component. The synchronous locking component is installed on the inner wall of both ends of the support mounting assembly and is used for structural locking of the adjustment positioning component.

2. The car seat headrest structure with multi-level adjustment according to claim 1, characterized in that, The support installation assembly includes a support frame, and the inner walls at both ends of the support frame are provided with slot structures for securing the external sponge. Protective structures are installed at both ends of the support frame.

3. The car seat headrest structure with multi-level adjustment according to claim 1, characterized in that, The gear shifting assembly includes a mounting frame, with rotating structures mounted at both ends of the mounting frame. The rotating structures are used to adjust the structural installation of the positioning assembly. An installation structure is mounted on the side of the rotating structure, and a height adjustment assembly is mounted on the bottom of the installation structure. The height adjustment assembly is used to support the height adjustment of the installation assembly. A torsion spring structure is sleeved on the side of the rotating structure.

4. The car seat headrest structure with multi-level adjustment according to claim 1, characterized in that, The adjustment and positioning assembly includes a fixed plate structure and a rotating adjustment component. The fixed plate structure is installed on the inner wall of the side end of the gear shifting assembly. An elastic support component is installed on the side end of the rotating adjustment component. A fixed rod structure is installed on the side end of the elastic support component. The fixed rod structure is used to support the angle positioning of the mounting assembly.

5. A car seat headrest structure with multi-level adjustment according to claim 1, characterized in that, The transmission assembly includes a limiting rod, a driven structure is installed on the inner wall of the limiting rod, and a toothed gear structure is installed on the side end of the limiting rod. The toothed gear structure is used for the structural transmission of the synchronous locking assembly.

6. The car seat headrest structure with multi-level adjustment according to claim 1, characterized in that, The synchronous locking assembly includes a guide structure, which is installed on the inner walls of both ends of the support mounting assembly. A meshing transmission component is slidably installed on the inner wall of the guide structure, and an elastic locking rod structure is installed on the side end of the meshing transmission component. The elastic locking rod structure is used for positioning and locking the gear rotation assembly.

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