Clamping type synchronous rod limiting structure

Abstract

The utility model provides a clamping type synchronous rod limiting structure, two ends of a synchronous rod are respectively provided with a first angle adjuster and a second angle adjuster, one end of the synchronous rod is provided with an anti-falling convex ring, and the clamping type synchronous rod limiting structure is arranged between the first angle adjuster and the second angle adjuster. The clamping type synchronous rod limiting structure comprises a clamping spring detachably connected with the synchronous rod, and the clamping spring installed on the synchronous rod protrudes out of the outer diameter of the synchronous rod. The sliding stroke of the synchronous rod is limited by the clamping type synchronous rod limiting structure and the anti-falling convex ring, and when the first angle adjuster close to the anti-falling convex ring is close to the clamping spring, the second angle adjuster is kept connected with the synchronous rod. The automobile seat adjusting mechanism effectively solves the problem that in the prior art, a synchronous rod cannot be disassembled and assembled repeatedly, the assembling efficiency of the automobile seat adjusting mechanism is improved, and the stability and safety of seat adjusting are enhanced. And through the detachable design of the clamping spring, the synchronous rod can be easily replaced or maintained when needed, and the maintenance cost is greatly reduced.

Description

Technical Field

[0001] This utility model relates to a synchronizing rod for automobile seats, specifically a snap-fit ​​synchronizing rod limiting structure. Background Technology

[0002] With the development of the modern automotive industry, people's demand for interior comfort and personalization in cars is increasing. As an important component that drivers and passengers come into direct contact with, the convenience, comfort, and safety of car seats directly affect the driving and riding experience.

[0003] Modern car seats are equipped with angle adjustment mechanisms, allowing passengers to adjust the seat position, angle, and support according to their personal preferences, thereby reducing fatigue that may be caused by long-term sitting.

[0004] like Figure 1 As shown, a typical car seat adjustment mechanism includes a synchronizer rod 1 and two adjusters 2 on either side. The single-side bracket plate of one of the rear seat adjusters 2 obstructs the installation space, therefore both adjusters 2 can only be passed through and installed from the same side of the synchronizer rod 1. To prevent the adjusters 2 from detaching from the synchronizer rod 1, thrust caps 3 are provided at both ends of the synchronizer rod 1. The drawback of this structure is that the synchronizer rod 1 cannot be repeatedly disassembled and reassembled. Utility Model Content

[0005] The purpose of this utility model is to provide a limiting method for the synchronizing rod in projects where there is no assembly space for the rear seat angle adjuster. A retaining spring detachably mounted on the synchronizing rod facilitates the disassembly of the angle adjuster from the synchronizing rod. The specific solution is as follows:

[0006] A snap-fit ​​synchronizing rod limiting structure is disclosed. The synchronizing rod is used in automobile seats, and a first angle adjuster and a second angle adjuster are respectively installed at both ends of the synchronizing rod. An anti-disengagement protrusion is provided at one end of the synchronizing rod.

[0007] The snap-fit ​​synchronous rod limiting structure is located between the first angle adjuster and the second angle adjuster. The snap-fit ​​synchronous rod limiting structure includes a snap spring that is detachably connected to the synchronous rod. The snap spring installed on the synchronous rod protrudes from the outer diameter of the synchronous rod.

[0008] The sliding stroke of the synchronizing rod is limited by a snap-fit ​​synchronizing rod limiting structure and an anti-disengagement protrusion ring. When the first angle adjuster near the anti-disengagement protrusion ring is close to the retaining spring, the second angle adjuster remains connected to the synchronizing rod.

[0009] Furthermore, the outer diameter of the synchronizing rod between the first and second angle adjusters is provided with at least one slot along the axial direction for installing a retaining ring.

[0010] Furthermore, the depth of the card slot is less than 3.5mm.

[0011] Furthermore, the snap ring is an integrated open snap, with an inner baffle plate embedded in the snap groove inside the opening of the snap.

[0012] Furthermore, the snap ring consists of two detachably connected semicircular snaps, which are connected by screws to the two semicircular snaps mounted on the synchronizing rod.

[0013] Furthermore, one end of the synchronizing rod is flattened to form the anti-detachment protrusion; or

[0014] A T-bolt is threaded onto one end of the synchronizing rod to serve as the anti-loosening protrusion ring.

[0015] Through the above technical solution, this utility model provides a simple and easy-to-operate synchronizing rod limiting structure, effectively solving the problem of the inability to repeatedly disassemble and assemble the synchronizing rod in the prior art. This structure not only improves the assembly efficiency of the car seat adjustment mechanism but also enhances the stability and safety of seat adjustment. Furthermore, the detachable design of the retaining spring allows the synchronizing rod to be easily replaced or repaired when needed, greatly reducing maintenance costs. The implementation of this utility model is of great significance for improving the comfort of car interiors and meeting personalized needs, and also provides new ideas and solutions for the design of car seat adjustment mechanisms. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 The limiting structure of the angle adjusters on both sides of the existing synchronous rod is used.

[0018] Figure 2 This is a schematic diagram of a snap-fit ​​synchronous rod limiting structure according to the present invention;

[0019] Figure 3 This is a schematic diagram of the cooperation structure between the open-ring shaped retaining ring and the synchronizing rod in one embodiment of the present invention. Detailed Implementation

[0020] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0021] To fully understand this utility model, detailed steps and structures will be presented in the following description to illustrate the technical solution of this utility model. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0022] Reference Figure 2-3 As shown, this utility model provides a snap-fit ​​synchronizing rod limiting structure. A first angle adjuster 20 and a second angle adjuster 30 are respectively installed at both ends of the synchronizing rod 10. An anti-detachment protrusion ring 11 is provided at the end of the synchronizing rod 10 closest to the first angle adjuster 20. In this utility model, the anti-detachment protrusion ring 11 can have various structural forms: In one embodiment, one end of the synchronizing rod 10 can be flattened to form the anti-detachment protrusion ring 11. In another embodiment, an internal threaded hole can be milled at one end of the synchronizing rod 10, and a T-bolt can be installed at one end of the synchronizing rod 10 using a threaded method to serve as the anti-detachment protrusion ring 11. The synchronizing rod 10 can be a hollow rod or a solid rod, depending on the design requirements.

[0023] The snap-fit ​​synchronous rod limiting structure of this utility model is located between the first angle adjuster 20 and the second angle adjuster 30. The snap-fit ​​synchronous rod limiting structure includes a snap ring 12 that is detachably connected to the synchronous rod 10. The snap ring 12 installed on the synchronous rod 10 protrudes from the outer diameter of the synchronous rod 10. The snap-fit ​​synchronous rod limiting structure and the anti-disengagement protrusion 11 limit the sliding stroke of the synchronous rod 10. Even when the synchronous rod 10 slides to the point where the first angle adjuster 20 is close to the snap ring 12, the second angle adjuster 30 remains connected to the synchronous rod 10, thereby preventing the first angle adjuster 20 and the second angle adjuster 30 from disengaging from the synchronous rod 10.

[0024] To ensure a secure connection between the retaining spring 12 and the synchronizing rod 10, at least one retaining groove 13 is provided axially on the outer diameter of the synchronizing rod 10 between the first angle adjuster 20 and the second angle adjuster 30. The retaining spring 12 is embedded in the retaining groove 13, increasing its strength under lateral forces and effectively preventing it from detaching from the synchronizing rod 10. The depth of the retaining groove 13 is less than 3.5 mm, providing fixation for the retaining spring 12 while ensuring the strength of the synchronizing rod 10. Tests have shown that providing a retaining groove with a depth of less than 3.5 mm on the synchronizing rod does not actually affect its torsional stiffness, thus ensuring the overall rigidity of the synchronizing rod.

[0025] In another embodiment, the slot 13 of the synchronizing rod 10 can be removed, and the retaining spring 12 and the synchronizing rod 10 can be configured as an interference fit to ensure the stability of the connection between the two.

[0026] Figure 3The diagram illustrates the structure of the retaining ring 12 in an optional embodiment of the present invention. The retaining ring 12 is an integral open snap fastener, with a baffle 121 embedded in the slot 13 inside the opening of the open snap fastener. The open snap ring shape of the retaining ring 12 allows for easy fastening of the retaining ring 12 into the slot 13 of the synchronizing rod 10, improving assembly efficiency. The baffle 121 increases the clamping force exerted by the retaining ring 12 on the synchronizing rod 10, thereby enhancing the fixing effect of the retaining ring 12 and ensuring that the retaining ring 12 will not loosen due to vibration or external forces during use. Furthermore, the design of the baffle 121 also prevents the retaining ring 12 from sliding along the slot 13 when subjected to axial force, thereby improving the reliability of the synchronizing rod limiting structure.

[0027] In another optional embodiment, the retaining ring 12 can consist of two detachably connected semi-circular snaps. After the two semi-circular snaps are fastened into the slots 13 of the synchronizing rod 10, the two semi-circular snaps are secured together by screws. The use of a separate retaining ring with screw connection can further ensure the stability of the retaining ring 12 fixed on the synchronizing rod 10, and effectively prevent the retaining ring 12 from coming out of the slots 13 after being subjected to lateral force.

[0028] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A snap-fit ​​type synchronizing rod limiting structure, wherein the synchronizing rod (10) is used for a car seat, and a first angle adjuster (20) and a second angle adjuster (30) are respectively installed at both ends of the synchronizing rod (10), and one end of the synchronizing rod (10) is provided with an anti-detachment protrusion ring (11), characterized in that, The snap-fit ​​synchronous rod limiting structure is located between the first angle adjuster (20) and the second angle adjuster (30). The snap-fit ​​synchronous rod limiting structure includes a snap ring (12) detachably connected to the synchronous rod (10). The snap ring (12) installed on the synchronous rod (10) protrudes from the outer diameter of the synchronous rod (10). The sliding stroke of the synchronizing rod (10) is limited by the snap-fit ​​synchronizing rod limiting structure and the anti-detachment protrusion ring (11). When the first angle adjuster (20) close to the anti-detachment protrusion ring (11) is close to the snap ring (12), the second angle adjuster (30) remains connected to the synchronizing rod (10).

2. The snap-fit ​​synchronous rod limiting structure as described in claim 1, characterized in that, The outer diameter of the synchronizing rod (10) between the first angle adjuster (20) and the second angle adjuster (30) is provided with at least one slot (13) for installing the retaining ring (12) along the axial direction.

3. The snap-fit ​​synchronous rod limiting structure as described in claim 2, characterized in that, The depth of the slot (13) is less than 3.5 mm.

4. The snap-fit ​​synchronous rod limiting structure as described in claim 2, characterized in that, The snap ring (12) is an integral open snap, and an inner baffle (121) is provided inside the opening of the snap ring and embedded in the slot (13).

5. A snap-fit ​​synchronous rod limiting structure as described in claim 1 or 2, characterized in that, The snap ring (12) consists of two detachably connected semicircular snaps, which are connected by screws to the two semicircular snaps mounted on the synchronizing rod (10).

6. The snap-fit ​​synchronous rod limiting structure as described in claim 1, characterized in that, One end of the synchronizing rod (10) is flattened to form the anti-detachment protrusion ring (11); or A T-bolt is threaded onto one end of the synchronizing rod (10) as the anti-detachment protrusion ring (11).

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