Headrest guide pipe of vehicle seat
By integrating the locking block and reset spring design and adding an elastic stop block to the fixing ring, the problems of numerous parts and complex assembly of existing car seat headrest tubes have been solved, resulting in fewer parts, lower costs, and elimination of abnormal noise.
Patent Information
- Application Number
- CN202520228502.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-13
AI Technical Summary
Existing car seat headrest tube unlocking methods use single or double springs, which involve many parts, numerous assembly steps, and high costs.
The design incorporates an integrated locking block and a reset spring, reducing the number of parts. Furthermore, by adding an elastic stop block to the fixing ring to absorb assembly gaps, a tight fit assembly is achieved.
The number of parts was reduced, assembly processes and costs were lowered, and the problem of abnormal noise caused by the headrest moving up and down was solved.
Smart Images
Figure CN223735904U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of headrest tube technology, specifically a car seat headrest tube. Background Technology
[0002] One end of the headrest tube is fixed to the back of the car seat, and the other end is inserted into the headrest rod to connect the headrest to the seat body, providing support for the headrest and ensuring that the headrest remains stable and withstands the pressure from the head during vehicle operation.
[0003] Currently, the headrest tube unlocking method on the market uses a single spring or double spring, which involves many parts, many assembly processes, and high costs.
[0004] Based on this, a car seat headrest duct is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content
[0005] The purpose of this invention is to provide a car seat headrest guide tube to solve the shortcomings of modern products in the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A car seat headrest guide tube includes a metal guide tube, a sleeve, and an assembly block. The metal guide tube is fixed to the car seat backrest by bolts. The sleeve is slidably connected through the inner wall of the metal guide tube. The assembly block is fixedly connected to the top wall of the sleeve. The assembly block is detachably connected to a headrest unlocking cover. The assembly block has a locking block groove and a hole. A locking block is slidably connected to the inner wall of the locking block groove. A reset spring is fixedly connected through the locking block. The end of the reset spring away from the locking block abuts against the inner wall of the locking block groove. The locking block has a snap-fit groove.
[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:
[0009] In one alternative: two symmetrical limiting blocks are fixedly connected to the upper surface of the locking block, and two symmetrical limiting grooves are provided on the assembly block, with the limiting blocks slidably connected to the inner sidewalls of the limiting grooves.
[0010] In one alternative embodiment, the sidewall of the assembly block is provided with several reinforcing ribs.
[0011] In one alternative: the sleeve sidewall is provided with two symmetrical locking blocks, the locking blocks being elastic elements, and the locking blocks abutting against the lower surface of the metal conduit.
[0012] In one alternative: the sleeve is fixedly connected to a retaining ring, and the retaining ring has two symmetrical elastic blocks on its sidewall, which abut against the upper surface of the metal conduit.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model integrates the locking block and the reset spring into one part, reducing the number of parts, fewer assembly steps, and lower cost.
[0015] 2. This utility model adds an elastic stop block to the fixed ring to absorb the assembly gap caused by the dimensional tolerance of the parts. After assembly, the parts will remain tightly fitted in the vertical direction, thus solving the problem of abnormal noise caused by "moving" in the vertical direction. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a first-view diagram of the present invention.
[0018] Figure 3 This is a schematic diagram of the exploded structure of this utility model.
[0019] Figure 4 This is a schematic diagram of the sleeve structure of this utility model.
[0020] Figure 5 This is a schematic diagram of the assembly block structure of this utility model.
[0021] Figure 6 This is a first-view view of the locking block of this utility model.
[0022] Figure 7 This is a second-view view of the locking block of this utility model.
[0023] Figure label annotations: 1 metal conduit, 2 sleeve, 3 locking block, 4 headrest unlocking cover, 5 locking block, 6 elastic abutment block, 7 fixing ring, 8 assembly block, 9 limiting groove, 10 limiting block, 11 reset spring, 12 snap-fit groove. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0025] In one embodiment, such as Figures 1-7As shown, a car seat headrest guide tube includes a metal guide tube 1, a sleeve 2, and an assembly block 8. The metal guide tube 1 is fixed to the car seat backrest by bolts. The sleeve 2 is slidably connected through the inner wall of the metal guide tube 1. The assembly block 8 is fixedly connected to the top wall of the sleeve 2. The assembly block 8 is detachably connected to a headrest unlocking cover 4. The assembly block 8 has a locking block groove and a hole. The locking block 5 is slidably connected to the inner wall of the locking block groove. The locking block 5 is fixedly connected to a reset spring 11. The end of the reset spring 11 away from the locking block 5 abuts against the inner wall of the locking block groove. The locking block 5 has a snap-fit groove 12.
[0026] When the headrest position needs to be adjusted, simply press the locking block 5. The locking block 5 moves into the assembly block 8, the reset spring 11 is squeezed, and the locking groove 12 of the locking block 5 is released from locking with the headrest rod, allowing the headrest to move up and down.
[0027] Integrating the locking block 5 and the reset spring 11 into a single part reduces the number of components, minimizes assembly steps, and lowers costs.
[0028] In one embodiment, two symmetrical limiting blocks 10 are fixedly connected to the upper surface of the locking block 5, and two symmetrical limiting grooves 9 are provided on the assembly block 8. The limiting blocks 10 are slidably connected to the inner sidewalls of the limiting grooves 9.
[0029] Limiting block 10 cooperates with limiting groove 9 to limit locking block 5.
[0030] In one embodiment, the sidewall of the assembly block 8 is provided with several reinforcing ribs.
[0031] Strengthen assembly block 8.
[0032] In one embodiment, the sleeve 2 is provided with two symmetrical locking blocks 3 on its sidewall. The locking blocks 3 are elastic elements and abut against the lower surface of the metal conduit 1.
[0033] When the sleeve 2 is inserted into the metal conduit 1, the locking block 3 undergoes elastic deformation. When the locking block 3 passes through the metal conduit 1, the locking block 3 elastically resets, thus fixing the sleeve 2. The installation of the sleeve 2 is quick and convenient.
[0034] In one embodiment, the sleeve 2 is fixedly connected to a fixing ring 7, and the side wall of the fixing ring 7 is provided with two symmetrical elastic blocks 6, which abut against the upper surface of the metal conduit 1.
[0035] An elastic abutment 6 is added to the fixed ring 7 to absorb the assembly gap caused by the dimensional tolerance of the parts. After assembly, the parts will remain tightly fitted in the vertical direction, thus solving the problem of abnormal noise from "moving" in the vertical direction.
[0036] The above embodiments disclose a car seat headrest guide tube, the specific working principle and process of which are as follows:
[0037] When the sleeve 2 is inserted into the metal conduit 1, the locking block 3 undergoes elastic deformation. When the locking block 3 passes through the metal conduit 1, the locking block 3 elastically resets, thus fixing the sleeve 2. The installation of the sleeve 2 is quick and convenient.
[0038] An elastic abutment 6 is added to the fixed ring 7 to absorb the assembly gap caused by the dimensional tolerance of the parts. After assembly, the parts will remain tightly fitted in the vertical direction, thus solving the problem of abnormal noise from "moving" in the vertical direction.
[0039] When the headrest position needs to be adjusted, simply press the locking block 5. The locking block 5 moves into the assembly block 8, the reset spring 11 is squeezed, and the locking groove 12 of the locking block 5 is released from locking with the headrest rod, allowing the headrest to move up and down.
[0040] Integrating the locking block 5 and the reset spring 11 into a single part reduces the number of components, minimizes assembly steps, and lowers costs.
[0041] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A headrest conduit for a vehicle seat, the headrest conduit comprising: The utility model relates to a metal conduit (1) is fixed on the car seat armchair through bolt, the inside wall of metal conduit (1) is slidably connected with sleeve pipe (2) through, sleeve pipe (2) top wall is fixedly connected with assembly block (8), assembly block (8) is detachably connected with headrest unlocking cover (4), assembly block (8) is equipped with locking block groove and hole, locking block groove inside wall is slidably connected with locking block (5), locking block (5) is fixedly connected with reset spring piece (11) through, reset spring piece (11) away from locking block (5) one end and locking block groove inside wall abut, locking block (5) is equipped with clamping groove (12).
2. A headrest conduit for a vehicle seat according to claim 1, wherein Two symmetrical limiting blocks (10) are fixedly connected on the upper surface of the locking block (5), and the assembly block (8) is provided with two symmetrical limiting grooves (9), and the limiting block (10) is slidably connected with the inner side wall of the limiting groove (9).
3. A headrest conduit for a vehicle seat as defined in claim 1, wherein The assembly block (8) is provided with a plurality of reinforcing ribs on the side wall.
4. A headrest conduit for a vehicle seat as defined in claim 1, wherein The sleeve pipe (2) is provided with two symmetrical clamping blocks (3) on the side wall, the clamping block (3) is an elastic member, and the clamping block (3) abuts against the lower surface of the metal conduit (1).
5. A headrest conduit for a vehicle seat as defined in claim 1, wherein The sleeve pipe (2) is fixedly connected with a fixing ring (7) through, the fixing ring (7) is provided with two symmetrical elastic abutting blocks (6) on the side wall, and the elastic abutting block (6) abuts against the upper surface of the metal conduit (1).