Headrest framework

Abstract

The utility model belongs to the technical field of automobile seat accessories, and discloses a headrest framework. The headrest framework comprises a supporting framework used for being connected with a fixed foundation, a headrest framework body capable of being inserted in a sliding mode and located in the supporting framework through a height adjusting assembly, and a pitching angle adjusting assembly used for adjusting the pitching angle of the headrest framework body relative to the supporting framework, a mounting groove is formed in the end face of the insertion end of the headrest framework, a mounting block is hinged to the end face of the insertion end of the headrest framework, the mounting block is slidably connected with the inner wall of the mounting groove, the inner diameter of the mounting groove is larger than the outer diameter of the headrest framework, and the pitching angle adjusting assembly comprises an abutting block which is located in the mounting groove and slidably connected with the peripheral wall of the insertion end of the headrest framework; and the adjusting locking piece is connected with the abutting block and is used for pushing the abutting block to drive the headrest framework to incline to a required angle relative to the mounting block. The headrest framework disclosed by the utility model has a high-low position adjusting function and a pitching angle adjusting function.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat accessories technology, specifically to a headrest frame. Background Technology

[0002] The headrest frame is an important component of a car seat. Its main functions include protecting the passenger's head and neck and reducing injuries during a collision. In a rear-end collision, the body will fall backward due to inertia. The pressure from the vehicle's acceleration or deceleration will be concentrated on the vulnerable neck and head. The headrest frame can effectively absorb collision energy through its cushioning effect, reducing the impact on the passenger's head and neck, thereby protecting the passenger's safety.

[0003] While existing car seat headrest frames can be adjusted for height, they typically cannot be adjusted for tilt. This makes it difficult for the headrest frame to adapt to the different usage habits of various users, thus reducing its practicality. Furthermore, existing car seat headrest frames suffer from wobbling during height adjustment due to varying directions of tension. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model proposes a headrest frame that combines height adjustment and tilt angle adjustment functions.

[0005] The headrest frame according to this utility model includes: a support frame for connecting to a fixed base, a headrest frame that can be slidably inserted into and positioned within the support frame by a height adjustment component, and a pitch angle adjustment component for adjusting the pitch angle of the headrest frame relative to the support frame. The support frame has an internal mounting groove, and a mounting block is hinged to the end face of the insertion end of the headrest frame. The mounting block is slidably connected to the inner wall of the mounting groove, and the inner diameter of the mounting groove is larger than the outer diameter of the headrest frame. The pitch angle adjustment component includes an abutment block located within the mounting groove and slidably connected to the outer peripheral wall of the insertion end of the headrest frame, and an adjusting locking member connected to the abutment block. The adjusting locking member is used to push the abutment block to tilt the headrest frame relative to the mounting block to the desired angle.

[0006] Furthermore, the outer peripheral wall of the support frame is axially provided with a slot, and the adjusting locking component includes a movable block that slides with the slot and a screw that threads with the movable block. The movable block is fixedly connected to the mounting block, and the screw passes through the movable block and is connected to the abutment block. The screw adjusts the angle of the headrest frame relative to the mounting block by screwing in and out relative to the movable block.

[0007] Furthermore, the outer peripheral wall of the support frame is provided with multiple positioning holes that communicate with the mounting groove along the axial direction. The positioning holes are arranged collinearly. The height adjustment component includes a telescopic rod assembly disposed in the mounting block. The telescopic rod assembly extends to cooperate with the positioning holes to fix the support frame and the headrest frame in the axial direction. The telescopic rod assembly retracts to disengage from the positioning holes so that the headrest frame can slide axially relative to the support frame.

[0008] Furthermore, the axial direction of the slot is parallel to the straight line direction that is collinear with each positioning hole.

[0009] Furthermore, the mounting block has a clearance hole for mounting the telescopic rod assembly. The telescopic rod assembly includes a telescopic rod installed in the clearance hole, a spring sleeved on the outer peripheral wall of the telescopic rod, and a positioning block connected to the outward end of the telescopic rod. The outward end of the spring is connected to the positioning block. The telescopic rod is constructed to cooperate with the spring so that the positioning block always passes through and extends out of the positioning hole when no external force is applied, and disengages from the positioning hole and retracts into the support frame when an external force is applied.

[0010] Furthermore, the telescopic rod includes a fixed shell fixed in the clearance hole and a rod body slidably connected in the fixed shell, with the outward end of the rod body connected to the positioning block.

[0011] Furthermore, a fixed magnet ring is provided on the inner wall of the fixed shell between the fixed shell and the rod, and a movable magnet ring is sleeved on one end of the rod near the positioning block. The fixed magnet ring and the movable magnet ring have the same magnetism.

[0012] Furthermore, the movable magnet ring is also fixedly connected to the positioning block.

[0013] Furthermore, a fixing groove is provided at the outward end of the positioning block, and a rolling ball is rotatably connected to the inner wall of the fixing groove.

[0014] Furthermore, the outward end of the positioning block is formed into an arc shape.

[0015] Compared with the prior art, the headrest frame of this utility model has the following advantages:

[0016] 1) In this utility model, by setting a telescopic rod assembly in the mounting block, the positioning block can be embedded in the positioning holes at different positions, thereby realizing the adjustment of the height position of the headrest frame. At the same time, the tilt angle adjustment assembly can adjust the tilt angle of the headrest frame. The headrest frame of this utility model has both height adjustment function and tilt angle adjustment function, so that it can adapt to the preferences of different users to adjust the height and angle, so as to provide better cervical spine support and safety protection function.

[0017] 2) In this utility model, by setting a fixed magnetic ring and a movable magnetic ring on the telescopic rod, the repulsive force between the two can ensure that the positioning block is more stably located in the positioning hole, thereby improving the reliability of the positioning block being limited in the positioning hole. On the other hand, it also makes the contact between the positioning block and the support frame tighter during adjustment, thereby improving the stability of the sliding of the positioning block on the inner wall of the support frame. At the same time, when the mounting block is displaced at different heights, the rolling ball rolling in the fixed groove can provide rolling friction to the positioning block, avoiding wear of the positioning block, thereby further ensuring the stability of the limiting function after the headrest frame is adjusted. Attached Figure Description

[0018] Figure 1 This is a rear view schematic diagram of the main structure of the headrest frame according to an embodiment of the present utility model;

[0019] Figure 2 This is a partial cross-sectional side view of the main structure of the headrest frame according to an embodiment of the present utility model;

[0020] Figure 3 for Figure 2 An enlarged schematic diagram of point A is shown below;

[0021] Figure 4 This is a partial cross-sectional front view of the main structure of the headrest frame according to an embodiment of the present utility model;

[0022] Figure 5 for Figure 4 An enlarged schematic diagram of point B is shown. Detailed Implementation

[0023] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model is provided below with reference to the accompanying drawings.

[0024] Figure 1 , Figure 2 as well as Figure 4 The structure of a headrest frame 100 according to an embodiment of the present invention is shown. For example... Figure 1 and Figure 2 As shown, the headrest frame 100 may include: a support frame 2 for connection to a fixed base; a headrest frame 1 slidably inserted into and positioned within the support frame 2 by a height adjustment component; the headrest frame 1 for mounting a headrest; and a pitch angle adjustment component 20 for adjusting the pitch angle of the headrest frame 1 relative to the support frame 2. Wherein, as... Figure 2 As shown, the support frame 2 has an internal mounting groove 3. A mounting block 4 is hinged to the end face of the insertion end of the headrest frame 1. The mounting block 4 is slidably connected to the inner wall of the mounting groove 3. The inner diameter of the mounting groove 3 is larger than the outer diameter of the headrest frame 1. Figure 3As shown, the pitch angle adjustment assembly 20 may include an abutment block 9 located in the mounting groove 3 and slidably connected to the outer peripheral wall of the insertion end of the headrest frame 1, and an adjustment locking member 7 connected to the abutment block 9. The adjustment locking member 7 is used to push the abutment block 9 to tilt the headrest frame 1 relative to the mounting block 4 to the desired angle.

[0025] In use, the headrest frame 100 of this utility model embodiment can connect the support frame 2 to the car seat. The height of the headrest frame 1 can be adjusted by pulling the headrest frame 1 upwards or downwards to slide it relative to the support frame 2. The headrest frame 1 and the support frame 2 can be fixed by the height adjustment component. When it is necessary to adjust the tilt angle of the headrest frame 1, the degree of compression of the abutment block 9 on the headrest frame 1 can be controlled by adjusting the adjusting locking component 7, so that the headrest frame 1 has different tilt angles relative to the mounting block 4, thereby achieving the purpose of adjusting the tilt angle of the headrest frame 1. This allows for easy switching of the position of the headrest frame 1 according to the different habits of the user, to adapt to the height and preferences of different drivers and passengers, and to provide better cervical spine support and safety protection.

[0026] According to this utility model, in such Figures 1 to 3 In the preferred embodiment shown, a slot 5 may be axially opened on the outer peripheral wall of the support frame 2. The adjusting locking component 7 may include a movable block 6 that slides with the slot 5 and a screw 8 that is threaded with the movable block 6. The movable block 6 is fixedly connected to the mounting block 4. The screw 8 passes through the movable block 6 and is connected to the abutment block 9. The screw 8 adjusts the angle of the headrest frame 1 relative to the mounting block 4 by screwing in and out relative to the movable block.

[0027] In such Figure 1 In the preferred embodiment shown, a plurality of positioning holes 14 communicating with the mounting groove 3 can be formed axially on the outer peripheral wall of the support frame 2. The positioning holes 14 are collinearly arranged, and the collinear direction of the positioning holes 14 is preferably parallel to the axial direction of the groove 5. Combined with... Figure 4 and Figure 5 As shown, the height adjustment component may include a telescopic rod assembly 30 disposed within the mounting block 4. The telescopic rod assembly 30 extends to engage with the positioning hole 14 to fix the support frame 2 and the headrest frame 1 in the axial direction. The telescopic rod assembly 30 retracts to disengage from the positioning hole 14, allowing the headrest frame 1 to slide axially relative to the support frame 2 to achieve height adjustment.

[0028] Specifically, such as Figure 5As shown, the mounting block 4 may have a clearance hole 10 for mounting the telescopic rod assembly 30. The telescopic rod assembly 30 may include a telescopic rod 11 installed in the clearance hole 10, a spring 12 sleeved on the outer peripheral wall of the telescopic rod 11, and a positioning block 13 connected to the outward end of the telescopic rod 11. The outward end of the spring 12 is connected to the positioning block 13. The telescopic rod 11 is configured to cooperate with the spring 12 so that the positioning block 13 always passes through and extends out of the positioning hole 14 when no external force is applied, and disengages from the positioning hole 14 and retracts into the support frame 2 when an external force is applied.

[0029] In such Figure 5 In the preferred embodiment shown, the telescopic rod 11 may include a fixed shell 111 fixed in the clearance hole 10 and a rod body 112 slidably connected in the fixed shell 111, with the outward end of the rod body 112 connected to the positioning block 13.

[0030] Furthermore, such as Figure 5 As shown, a fixed magnet ring 15 may be provided on the inner wall of the fixed shell 111, located between the fixed shell 111 and the rod 112. A movable magnet ring 16 is sleeved on one end of the rod 112 near the positioning block 13. The fixed magnet ring 15 and the movable magnet ring 16 have the same magnetism. The movable magnet ring 16 can preferably be fixedly connected to the positioning block 13 to improve the stability of the movable magnet ring 16.

[0031] In such Figure 5 In the preferred embodiment shown, the outer end of the positioning block 13 may also be provided with a fixing groove 17, and the inner wall of the fixing groove 17 is rotatably connected to a rolling ball 18.

[0032] In such Figure 5 In the preferred embodiment shown, the outward end of the positioning block 13 can be formed in an arc shape so that the positioning block 13 can be smoothly inserted into the corresponding positioning hole 14 when the height is adjusted.

[0033] When it is necessary to adjust the height of the headrest frame 1, combined with Figure 1 and Figure 5As shown, the positioning block 13 can be pressed inward to embed it into the mounting groove 3 through the positioning hole 14. At this time, the headrest frame 1 can be pulled up or down. Due to the elasticity of the spring 12 and the mutual repulsion between the fixed magnet ring 15 and the moving magnet ring 16, the positioning block 13 will always be in contact with the inner wall of the mounting groove 3. When the headrest frame 1 moves up or down, the rolling ball 18 will rotate inside the fixed groove 17, converting the friction between the positioning block 13 and the mounting groove 3 into rolling friction. After the position of the headrest frame 1 is adjusted, the positioning block 13 fixes the headrest frame 1 through the positioning hole 14. At this time, the screw 8 can be manually rotated forward or backward. The screw 8 controls the degree to which the abutment block 9 presses the headrest frame 1, thereby adjusting the tilt angle of the headrest frame 1. This allows the headrest frame 1 to be switched according to the different habits of the user, so as to adapt to the height and preferences of different drivers and passengers and provide better cervical spine support and safety protection.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A headrest frame, characterized in that, include: A support frame for connection to a fixed foundation, a headrest frame that can be slidably inserted into and positioned within the support frame by a height adjustment component, and a pitch angle adjustment component for adjusting the pitch angle of the headrest frame relative to the support frame, wherein the support frame has an internal mounting groove, a mounting block is hinged to the end face of the insertion end of the headrest frame, the mounting block is slidably connected to the inner wall of the mounting groove, the inner diameter of the mounting groove is larger than the outer diameter of the headrest frame, the pitch angle adjustment component includes an abutment block located within the mounting groove and slidably connected to the outer peripheral wall of the insertion end of the headrest frame, and an adjustment locking member connected to the abutment block, the adjustment locking member being used to push the abutment block to tilt the headrest frame relative to the mounting block to the desired angle.

2. The headrest frame according to claim 1, characterized in that, The outer peripheral wall of the support frame is also provided with an axially formed groove. The adjusting locking component includes a movable block that slides with the groove and a screw that is threaded with the movable block. The movable block is fixedly connected to the mounting block. The screw passes through the movable block and is connected to the abutment block. The screw adjusts the angle of the headrest frame relative to the mounting block by screwing in and out relative to the movable block.

3. The headrest frame according to claim 2, characterized in that, The outer peripheral wall of the support frame is provided with a plurality of positioning holes communicating with the mounting groove along the axial direction. The positioning holes are all arranged collinearly. The height adjustment component includes a telescopic rod assembly disposed in the mounting block. The telescopic rod assembly extends to cooperate with the positioning holes to fix the support frame and the headrest frame in the axial direction. The telescopic rod assembly retracts to disengage from the positioning holes so that the headrest frame can slide axially relative to the support frame.

4. The headrest frame according to claim 3, characterized in that, The axial direction of the slot is parallel to the straight line direction that is collinear with each of the positioning holes.

5. The headrest frame according to claim 3, characterized in that, The mounting block has a clearance hole for mounting the telescopic rod assembly. The telescopic rod assembly includes a telescopic rod installed in the clearance hole, a spring sleeved on the outer peripheral wall of the telescopic rod, and a positioning block connected to the outward end of the telescopic rod. The outward end of the spring is connected to the positioning block. The telescopic rod is constructed to cooperate with the spring so that the positioning block always passes through and extends out of the positioning hole when no external force is applied, and disengages from the positioning hole and retracts into the support frame when an external force is applied.

6. The headrest frame according to claim 5, characterized in that, The telescopic rod includes a fixed shell fixed in the clearance hole and a rod body slidably connected in the fixed shell, with the outward end of the rod body connected to the positioning block.

7. The headrest frame according to claim 6, characterized in that, A fixed magnet ring is provided on the inner wall of the fixed shell between the fixed shell and the rod body, and a movable magnet ring is sleeved on one end of the rod body near the positioning block. The fixed magnet ring and the movable magnet ring have the same magnetism.

8. The headrest frame according to claim 7, characterized in that, The movable magnet ring is also fixedly connected to the positioning block.

9. The headrest frame according to claim 5, characterized in that, The positioning block also has a fixing groove at its outward end, and a rolling ball is rotatably connected to the inner wall of the fixing groove.

10. The headrest frame according to claim 5, characterized in that, The outer end of the positioning block is formed into an arc shape.

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