Anti-falling structure for side armrest of automobile seat
The snap-fit fixing structure, which uses a snap ring and a groove, solves the problem of the side armrest pivot falling off the car seat, achieving a stable connection and easy installation of the armrest, and improving the safety and usability of the seat.
Patent Information
- Application Number
- CN202520053324.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2035-01-09
AI Technical Summary
There is a risk of the pivot detaching from the existing car seat side armrests, mainly due to the insufficient stability of the connection structure between the pivot and the armrest bracket, which can lead to loosening due to long-term use and vibration.
The design employs a snap-fit fixing structure that combines a snap-fit spring with a groove. By snapping the shaft assembly with the rotating shaft, and utilizing the U-shaped design and anti-dislodgement structure of the snap-fit spring, the snap-fit spring is stably fixed to the shaft assembly. Furthermore, the armrest frame is stably connected through a detachable connection between the mounting plate and the backrest frame.
It improves the connection stability of the armrest, reduces the risk of detachment, simplifies the installation process, reduces costs, and enhances the overall stability and safety of the seat. It is suitable for various car seat side armrests.
Smart Images

Figure CN223546202U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to automobile seats, and more particularly to an anti-detachment structure for the side armrest of an automobile seat. Background Technology
[0002] As a crucial component for enhancing passenger comfort, the stability and safety of car seat side armrests are paramount. However, some existing car seat side armrests on the market pose a risk of hinge detachment. This is primarily due to an insufficiently robust connection structure between the hinge and the armrest bracket, or loosening caused by vibrations during long-term use and vehicle operation. Therefore, developing an anti-detachment structure that effectively prevents the armrest hinge from falling off is of utmost importance. Utility Model Content
[0003] In view of the problems existing in the prior art, the present invention aims to provide a car seat side armrest anti-detachment structure that is easy to install and can effectively prevent the armrest pivot from falling off.
[0004] To achieve the above objectives, this utility model proposes an anti-detachment structure for a car seat side armrest, including an armrest frame and a backrest frame. The armrest frame is rotatably connected to the backrest frame via an adjuster. The armrest frame includes a pivot, and the adjuster includes a core component. The core component is sleeved on the pivot, and the outer end of the core component is provided with a shaft assembly for the pivot to insert into. It also includes a retaining spring. The shaft assembly is provided with a retaining hole that matches the retaining spring. The outer circle of the pivot is provided with a groove at the position corresponding to the retaining hole. The retaining spring is inserted into the retaining hole and simultaneously engaged in the groove, thereby achieving the engagement and fixation of the shaft assembly and the pivot.
[0005] In the above scheme: the shaft assembly has symmetrical locking holes on both sides, the locking holes are arc-shaped holes extending along the circumference, the groove is a ring-shaped groove opened along the outer circle of the rotating shaft, the retaining spring is U-shaped, the two ends of the retaining spring are respectively inserted into the locking holes on both sides and simultaneously locked into the corresponding grooves, and the two ends of the retaining spring are provided with an anti-dislodgement structure after passing through the locking holes, which effectively ensures the locking stability of the retaining spring.
[0006] In the above solution: the two ends of the retaining ring first move inward and then bend outward to the top of the corresponding ends, thereby forming an anti-disengagement structure, which effectively prevents the retaining ring from automatically disengaging.
[0007] In the above scheme: the top center of the retaining ring bends inward to abut against the outer circle of the shaft assembly. This structure, in conjunction with the anti-dislodgement structure, stably limits and fixes the retaining ring to the shaft assembly.
[0008] In the above solution: the inner end of the core component is provided with a mounting connection plate, which can be detachably fixed to the backrest frame. The structure is simple and the assembly is convenient.
[0009] In the above solution: a middle connecting plate is welded to the side end of the backrest frame, and the mounting connecting plate is detachably fixed to the middle connecting plate by bolts to achieve the fixation of the mounting connecting plate and the backrest frame. When disassembling the armrest, first remove the bolts at this location, then pull out the retaining spring, and finally unlock the core component.
[0010] The beneficial effects of this utility model are: 1. Stable structure: The engagement of the shaft assembly and the rotating shaft is achieved through the cooperation of the retaining spring and the groove, which strengthens the stability of the connection between the core component and the armrest frame and reduces the risk of the armrest falling off. 2. Easy installation: The installation process is simple and quick, requiring no complicated tools, thus reducing installation costs and time. 3. High safety: It improves the overall stability and safety of the seat side armrest, providing passengers with a safer and more comfortable riding environment. 4. Wide range of applications: This anti-detachment structure is suitable for various types of car seat side armrests and has wide applicability. Attached Figure Description
[0011] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0012] Figure 1 This is a schematic diagram of the structure of this utility model.
[0013] Figure 2 yes Figure 1 A diagram from another angle.
[0014] Figure 3 This is a schematic diagram showing how the shaft assembly and the rotating shaft are fixed together by a retaining ring.
[0015] Figure 4 yes Figure 3 A diagram from another angle.
[0016] Figure 5 This is an assembly diagram of the core component and the shaft assembly. Detailed Implementation
[0017] like Figure 1 As shown in Figure 5, an anti-detachment structure for a car seat side armrest mainly consists of an armrest frame, a backrest frame 1, and a retaining spring 5. The armrest frame is rotatably connected to the backrest frame 1 via an adjuster. The armrest frame includes a pivot 2, and the adjuster includes a core component 3. The core component 3 is sleeved on the pivot 2, and the outer end of the core component 3 is provided with a shaft fitting 4 for the pivot 2 to be inserted.
[0018] The shaft assembly 4 has a snap hole 41 that matches the snap ring 5. The outer circle of the rotating shaft 2 has a groove at the position corresponding to the snap hole 41. The snap ring 5 is inserted into the snap hole 41 and simultaneously snapped into the groove, thereby realizing the snap-fit fixation between the shaft assembly 4 and the rotating shaft 2, which enhances the stability of the connection between the core component 3 and the handrail frame and effectively reduces the risk of the handrail falling off.
[0019] Ideally, the shaft assembly 4 has symmetrically provided locking holes 41 on both sides. The locking holes 41 are arc-shaped holes extending in the circumferential direction. The groove is a ring groove opened along the outer circle of the rotating shaft 2. The retaining spring 5 is U-shaped. The two ends of the retaining spring 5 are respectively inserted into the locking holes 41 on both sides and simultaneously locked into the corresponding grooves. The two ends of the retaining spring 5 are provided with an anti-disengagement structure a after passing through the locking holes, which effectively ensures the locking stability of the retaining spring 5.
[0020] Ideally, the two ends of the retaining ring 5 should first be brought together inward and then bent outward to the top of the corresponding ends, thus forming an anti-disengagement structure a. The anti-disengagement structure a effectively prevents the retaining ring 5 from automatically disengaging.
[0021] Ideally, the top center of the retaining ring 5 is bent inward to abut against the outer circle of the shaft assembly 4. This structure, in conjunction with the anti-disengagement structure a, stably limits and fixes the retaining ring 5 to the shaft assembly 4.
[0022] Ideally, the inner end of the core component 3 is provided with a mounting connection plate 6, which can be detachably fixed to the backrest frame 1. The structure is simple and the assembly is convenient.
[0023] Ideally, a middle connecting plate 7 is welded to the side end of the backrest frame 1, and the mounting connecting plate 6 is detachably fixed to the middle connecting plate 7 by bolts, so as to achieve the fixation of the mounting connecting plate 6 and the backrest frame 1. When disassembling the armrest, first remove the bolts at this location, then pull out the retaining spring 5, and finally unlock the core component 3.
Claims
1. A car seat side armrest anti-detachment structure, comprising an armrest frame and a backrest frame (1), wherein the armrest frame is rotatably connected to the backrest frame (1) via an adjuster, the armrest frame includes a pivot (2), the adjuster includes a core component (3), the core component (3) is sleeved on the pivot (2), and the outer end of the core component (3) is provided with a shaft fitting (4) for the pivot (2) to be inserted, characterized in that: It also includes a snap ring (5), and the shaft assembly (4) is provided with a snap hole (41) that matches the snap ring (5). The outer circle of the rotating shaft (2) is provided with a groove at the position corresponding to the snap hole (41). The snap ring (5) is inserted into the snap hole (41) and simultaneously snapped into the groove, thereby realizing the snap-fit fixation between the shaft assembly (4) and the rotating shaft (2).
2. The anti-detachment structure for the side armrest of a car seat according to claim 1, characterized in that: The shaft assembly (4) has symmetrically provided locking holes (41) on both sides. The locking holes (41) are arc-shaped holes extending in the circumferential direction. The groove is a ring-shaped groove opened along the outer circle of the rotating shaft (2). The retaining spring (5) is U-shaped. The two ends of the retaining spring (5) are respectively inserted into the locking holes (41) on both sides and simultaneously locked into the corresponding grooves. The two ends of the retaining spring (5) are provided with an anti-dislodgement structure (a) after passing through the locking holes.
3. The anti-slip structure for the side armrest of a car seat according to claim 2, characterized in that: The two ends of the retaining ring (5) first come together inward and then bend outward to the top of the corresponding ends, thereby forming an anti-dislodgement structure (a).
4. The anti-detachment structure for the side armrest of a car seat according to claim 3, characterized in that: The top center of the snap ring (5) bends inward to abut against the outer circle of the shaft assembly (4).
5. The anti-slip structure for the side armrest of a car seat according to claim 1, characterized in that: The inner end of the core component (3) is provided with a mounting connection plate (6), which is detachably fixed to the backrest frame (1).
6. The anti-detachment structure for the side armrest of a car seat according to claim 5, characterized in that: The backrest frame (1) has an intermediate connecting plate (7) welded to its side end, and the mounting connecting plate (6) is detachably fixed to the intermediate connecting plate (7) by bolts.