A lightweight anti-noise car seat headrest guide cover
By introducing metal support plates and sliding groove structures into the headrest guide sleeve of the car seat, the problem of easy fatigue deformation of plastic inserts is solved, the stability and riding comfort of the headrest guide sleeve are improved, and lightweight design is achieved at the same time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI YANPU METAL PROD
- Filing Date
- 2025-09-23
- Publication Date
- 2026-07-03
AI Technical Summary
Existing car seat headrest guide covers are prone to fatigue deformation due to continuous stress concentration on the plastic inserts during long-term use, resulting in weakened locking effect, loosening and shaking of the headrest, and affecting the quietness and comfort of the ride.
The structure consists of a guide sleeve body, an insert, and an elastic element. The insert has a perforation and a metal support plate, while the guide sleeve body has a sliding frame and a sliding groove. The elastic element pushes the insert to move, and the metal support plate reinforces the locking part, thereby improving the structural strength and stability.
The stability of the headrest cover has been enhanced, noise has been reduced, the quietness and comfort of riding have been improved, and a lightweight design has been achieved.
Smart Images
Figure CN224447571U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive parts, and in particular to a lightweight anti-noise car seat headrest guide sleeve. Background Technology
[0002] The headrest guide cover is a key component connecting the headrest and the seat back. Its core function is to eliminate the gap between the headrest rod and the seat socket, effectively preventing abnormal noises and friction noises caused by shaking during vehicle operation. It also prevents dust and leaks, keeping small objects out of the seat and improving overall ride quietness and comfort.
[0003] Currently, the headrest guide sleeve consists of a guide sleeve body, an insert, and an elastic element. The guide sleeve body is installed in the seat's insertion hole, the insert is slidably installed on the top of the guide sleeve body, and a through hole is formed in the insert. The elastic element is installed in the guide sleeve body and pushes the insert to move. The headrest rod is inserted into the guide sleeve body through the through hole of the insert, and the elastic element pushes the insert to lock the headrest rod in place.
[0004] During prolonged use, the headrest is continuously subjected to a rearward load from the occupant's head resting against it. This load is transmitted to the plastic insert through the headrest rod, causing the contact point between the insert and the headrest rod to bear a significant radial thrust. This continuous stress concentration can easily cause fatigue deformation of the plastic insert, resulting in a weakening of its locking effect, and consequently, noticeable loosening and wobbling of the headrest even under slight external forces. Utility Model Content
[0005] To improve the stability of the headrest guide sleeve, this application provides a lightweight anti-noise car seat headrest guide sleeve.
[0006] The lightweight anti-noise car seat headrest guide sleeve provided in this application adopts the following technical solution:
[0007] A lightweight anti-noise car seat headrest guide sleeve includes a guide sleeve body, an insert, and an elastic element. The top of the guide sleeve body is provided with a sliding frame, the insert is slidably disposed in the sliding frame, the elastic element is disposed in the sliding frame and pushes the insert to move, a through hole is formed in the insert, and a snap-fit part is formed on one side of the insert located at the through hole, which engages with the headrest rod, and a metal support piece is provided in the snap-fit part.
[0008] By adopting the above technical solution, the guide sleeve body is installed in the seat's insertion hole, the insert is slidably installed in the sliding frame at the top of the guide sleeve body, the insert has a through hole, the elastic element is installed in the guide sleeve body and pushes the insert to move, the headrest rod is inserted into the guide sleeve body through the through hole of the insert, the elastic element pushes the locking part to lock the headrest rod through the insert, and the metal support plate in the locking part reinforces the locking part, improving the structural strength of the locking part, making the locking part less prone to deformation after bearing load, thereby improving the stability of the headrest guide sleeve.
[0009] Preferably, the metal support piece is U-shaped, with its middle portion located within the snap-fit portion, and both ends extending into the insert.
[0010] By adopting the above technical solution, the two ends of the U-shaped metal support piece extend into the insert, which improves the support effect of the metal support piece and thus further improves the stability of the snap-fit part.
[0011] Preferably, an abutment portion is provided on the outer side wall of the guide sleeve body.
[0012] By adopting the above technical solution, when the guide sleeve body is inserted into the seat's insertion hole, the guide sleeve body abuts against the seat's insertion hole through the abutment part, thereby improving the stability of the guide sleeve body installation.
[0013] Preferably, the outer side wall of the guide sleeve body is provided with multiple hollow grooves.
[0014] By adopting the above technical solution, the hollowed-out groove reduces the weight of the guide sleeve body, making the headrest guide sleeve lighter.
[0015] Preferably, a limit strip is provided on the inner wall of the guide sleeve body.
[0016] By adopting the above technical solution, when the headrest rod is inserted into the guide sleeve body, the limiting strip inside the guide sleeve body presses against the headrest rod, thereby improving the stability of the headrest rod.
[0017] Preferably, the top of the guide sleeve body is provided with a sliding groove, and the bottom of the insert is provided with a slider, which is slidably disposed in the sliding groove.
[0018] By adopting the above technical solution, the insert drives the slider to slide in the slide groove. The slider and the slide groove cooperate to guide the movement of the insert, making the movement of the insert more stable, and limit the forward movement, making it difficult for the insert to slip out of the slide frame.
[0019] Preferably, a limiting groove is provided in the sliding frame, a limiting rod is provided on the insert, one end of the elastic member is located in the limiting groove, and the other end is sleeved on the limiting rod.
[0020] By adopting the above technical solution, the insert moves and pushes the elastic element to contract and deform. The limiting groove and the limiting rod limit the elastic element, making the elastic element more stable when it contracts and deforms.
[0021] Preferably, the top end of the guide sleeve body is detachably provided with a cap, which is fitted onto the slide frame.
[0022] By adopting the above technical solution, the sliding frame is covered with a cap, thereby improving the aesthetics of the headrest guide cover.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. Using a metal support plate, the guide sleeve body is installed in the seat's insertion hole. The insert is slidably installed in the sliding frame at the top of the guide sleeve body. A through hole is formed in the insert. An elastic element is installed in the guide sleeve body and pushes the insert to move. The headrest rod is inserted into the guide sleeve body through the through hole of the insert. The elastic element pushes the snap-fit part to lock the headrest rod through the insert. The metal support plate in the snap-fit part reinforces the snap-fit part, improving the structural strength of the snap-fit part and making it less prone to deformation after bearing load, thereby improving the stability of the headrest guide sleeve.
[0025] 2. By extending both ends of the U-shaped metal support piece into the insert, the support effect of the metal support piece is improved, thereby further enhancing the stability of the snap-fit part;
[0026] 3. Through the slider and the groove, the insert drives the slider to slide in the groove. The slider and the groove cooperate to guide the movement of the insert, making the movement of the insert more stable, and limit the forward movement, so that the insert is not easy to slip out of the slide frame. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of the vehicle seat headrest guide sleeve of this application;
[0028] Figure 2 This is an exploded view of the overall structure of the vehicle seat headrest guide sleeve in this application.
[0029] Figure 3 This is an exploded reverse view of the overall structure of the vehicle seat headrest guide sleeve in this application;
[0030] Figure 4 This is a partial structural diagram of the headrest guide sleeve for the vehicle seat in this application;
[0031] Figure 5 This is a bottom view of the overall structure of the vehicle seat headrest guide sleeve of this application;
[0032] Figure 6 This is a top sectional view of the headrest guide sleeve for the vehicle seat in this application.
[0033] Reference numerals in the attached drawings: 1. Guide sleeve body; 2. Insert; 3. Elastic element; 4. Sliding frame; 5. Through hole; 6. Snap-fit part; 7. Metal support piece; 8. Abutment part; 9. Hollowed-out groove; 10. Limiting strip; 11. Sliding groove; 12. Sliding block; 13. Limiting groove; 14. Limiting rod; 15. Cap; 16. Buckle; 17. First round hole; 18. Second round hole. Detailed Implementation
[0034] The following is in conjunction with the appendix Figures 1-6This application will be described in further detail.
[0035] This application discloses a lightweight anti-noise car seat headrest guide sleeve.
[0036] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A lightweight anti-noise car seat headrest guide sleeve includes a guide sleeve body 1, an insert 2 and two elastic members 3. The bottom of the guide sleeve body 1 has buckles 16 on both opposite sides, and the guide sleeve body 1 is fixed in the seat socket by the two buckles 16.
[0037] The guide sleeve body 1 has integrally formed abutment portions 8 on its three outer side walls. When the guide sleeve body 1 is inserted into the seat's insertion hole, the three abutment portions 8 of the guide sleeve body 1 press against the inner wall of the insertion hole, making the guide sleeve body 1 more stable in the insertion hole. Multiple hollow grooves 9 are formed on the outer side walls of the guide sleeve body 1. The hollow grooves 9 reduce the weight of the guide sleeve body 1, making the headrest guide sleeve lighter.
[0038] The top of the guide sleeve body 1 is integrally formed with a sliding frame 4, and a first circular hole 17 is opened in the sliding frame 4. The insert 2 is slidably installed in the sliding frame 4, and a through hole 5 is opened in the insert 2. Two receiving grooves are opened in the sliding frame 4, and one end of each of the two elastic elements 3 is located in the two receiving grooves respectively. Two guide posts are fixedly installed on the side wall of the insert 2, and the two guide posts are respectively inserted into the other end of the two elastic elements 3. In this application, the elastic element 3 can be selected as an elastic element 3.
[0039] Two sliders 12 are fixedly installed at intervals on the bottom wall of the insert 2, and two grooves 11 are opened at intervals on the top of the guide sleeve body 1. The two sliders 12 are slidably installed in the two grooves 11 respectively. The insert 2 drives the sliders 12 to make linear movements within the grooves 11. The cooperation between the sliders 12 and the grooves 11 provides precise guidance for the movement of the insert 2, ensuring the stability and smoothness of the insert 2's trajectory; at the same time, the cooperation between the sliders 12 and the grooves 11 mechanically limits the end of the stroke of the insert 2, effectively preventing the insert 2 from overtraveling and accidentally dislodging from the slide frame 4.
[0040] A cap 15 is detachably installed on the top of the guide sleeve body 1. The cap 15 covers the sliding frame 4, and a second round hole 18 is provided inside the cap 15. The headrest rod enters the guide sleeve body 1 through the second round hole 18, the first round hole 17, and the through hole 5.
[0041] Reference Figure 5 Limiting strips 10 are fixedly installed on the four inner walls of the guide sleeve body 1 along its own length. Multiple limiting strips 10 abut and limit the headrest rod, making the headrest rod more stable in the guide sleeve body 1, thereby reducing the occurrence of abnormal noise.
[0042] Reference Figure 2 and Figure 6 The insert 2 is integrally formed with a snap-fit portion 6 on one side of the through hole 5. A metal support piece 7 is fixedly installed inside the insert 2 and the snap-fit portion 6. The metal support piece 7 is U-shaped, with its middle part located inside the snap-fit portion 6 and its two bent ends located inside the insert 2.
[0043] The implementation principle of a lightweight anti-noise car seat headrest guide sleeve in this application embodiment is as follows: Press the insert 2 into the sliding frame 4. The insert 2 compresses the two elastic elements 3 to shrink and deform, allowing the headrest rod to enter the guide sleeve body 1 through the second round hole 18, the first round hole 17 and the through hole 5. Then, release the insert 2. The two elastic elements 3 push the insert 2 to move and reset. The insert 2 drives the locking part 6 to lock the headrest rod. The metal support piece 7 in the locking part 6 reinforces the locking part 6, improving the structural strength of the locking part 6. This makes the locking part 6 less prone to deformation after bearing load, thereby improving the stability of the headrest guide sleeve.
[0044] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.
Claims
1. A lightweight anti-noise car seat headrest guide cover, characterized in that: The device includes a guide sleeve body (1), an insert (2), and an elastic element (3). A sliding frame (4) is provided on the top of the guide sleeve body (1). The insert (2) is slidably disposed in the sliding frame (4). The elastic element (3) is disposed in the sliding frame (4) and pushes the insert (2) to move. A through hole (5) is formed in the insert (2). A snap-fit part (6) is formed on one side of the insert (2) located in the through hole (5) to engage with the headrest rod. A metal support piece (7) is provided in the snap-fit part (6).
2. A lightweight anti-rustling car seat headrest guide sleeve according to claim 1, characterized in that: The metal support piece (7) is U-shaped, with the middle part of the metal support piece (7) located inside the snap-fit part (6), and both ends of the metal support piece (7) extending into the insert (2).
3. The lightweight anti-rustling car seat headrest guide sleeve according to claim 1, characterized in that: An abutment portion (8) is provided on the outer side wall of the guide sleeve body (1).
4. The lightweight anti-rustling car seat headrest guide sleeve according to claim 1, characterized in that: Multiple hollowed-out grooves (9) are provided on the outer side wall of the guide sleeve body (1).
5. A lightweight anti-noise car seat headrest guide sleeve according to claim 1, characterized in that: Limiting strips (10) are provided on the inner wall of the guide sleeve body (1).
6. The lightweight anti-rustling car seat headrest guide sleeve according to claim 1, characterized in that: The top of the guide sleeve body (1) is provided with a sliding groove (11), and the bottom of the insert (2) is provided with a slider (12), which is slidably disposed in the sliding groove (11).
7. The lightweight anti-rustling car seat headrest guide sleeve according to claim 1, characterized in that: A limiting groove (13) is provided in the sliding frame (4), and a limiting rod (14) is provided on the insert (2). One end of the elastic member (3) is located in the limiting groove (13), and the other end is sleeved on the limiting rod (14).
8. The lightweight anti-rustling car seat headrest guide sleeve according to claim 1, characterized in that: The top of the guide sleeve body (1) is detachably provided with a cap (15), which is fitted onto the slide frame (4).