Automobile safety belt lock catch adjusting mechanism

By designing seat cushion foam and combining components such as stepped bolts into the seat frame to create a locking adjustment mechanism, the problem of limited locking adjustment range is solved, achieving both flexibility and safety requirements for multiple seat adjustments.

CN223702531UActive Publication Date: 2025-12-23EAST JOY LONG-WOOSHIN (SHANGHAI) AUTOMOTIVE SAFETY SYST CO LTD
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Patent Information

Application Number
CN202520399377.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2025-12-23
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

Due to limitations in fixing points and structure, existing car seat belt buckles cannot meet the various adjustment needs of rear seats, especially when the seat back is folded down and becomes uneven with the trunk, thus limiting the buckle's adjustment range.

Method used

An automotive seatbelt buckle adjustment mechanism was designed. By sliding seat cushion foam onto the seat frame and utilizing a combination of components such as stepped bolts, metal limiting plates, plastic flower pads, metal spacer rings, and torsion springs, the buckle body can be flexibly adjusted to meet the seat's height and fore-aft adjustment functions.

Benefits of technology

It enables flexible adjustment of the buckle to meet various seat adjustment needs, improves the fit and applicability of the seat belt, ensures passenger comfort and safety, and meets regulatory requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile safety belt lock catch adjusting mechanism which comprises a seat framework, a seat cushion foam is installed on the seat framework in a sliding mode, a movable space is arranged on the seat cushion foam, a step bolt is installed on the side face of the seat framework in a locking mode, a metal limiting plate is sleeved on the step bolt, and a limiting inserting block is arranged on one side of the metal limiting plate. The step bolt is provided with a flower pad on the left side of the metal limiting plate, the flower pad is provided with a lock catch body, the top of the lock catch body is arranged in the movable space, the lock catch body is provided with a lock hole, and the step bolt is provided with a metal distance ring on the left side of the flower pad. A torsional spring is installed on the metal distance ring, one end of the torsional spring is clamped in the lock hole, the other end of the torsional spring is clamped in the notch groove, a metal shaft sleeve is installed on the step bolt, and the metal shaft sleeve is arranged between the seat framework and the metal distance ring.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile passive safety system, specifically relates to a car safety belt lock catch adjusting mechanism. BACKGROUND

[0002] The safety belt lock catch is a fitting for fixing the safety belt on the vehicle, and the rear-row safety belt lock catch is usually installed on the vehicle floor, the seat cushion foam hole exposes the lock head, and the seat cushion foam fixes the position of the lock head, thereby facilitating the insertion and unlocking of the safety belt by the member.

[0003] With the development of new energy vehicles, users gradually increase the requirements for the space and the function of the seat in the vehicle, and the rear-row seat is higher than the trunk after the backrest is laid down due to the limited space, which causes unevenness. One of the methods to solve this problem is to allow the seat cushion foam to be adjusted individually, that is, to be adjusted forward and downward, so the lock catch head needs to move along with the position adjustment of the seat cushion foam. In addition to the traditional backrest laying down, the rear-row seat is additionally provided with the functions of height and forward and backward adjustment. Due to the limitation of the fixed point and structure, the range of the lock catch that can be adjusted is very small, and it cannot meet the requirements of the multiple adjustments of the seat, so there is an urgent need for a car safety belt lock catch adjusting mechanism to solve the above problems. SUMMARY

[0004] In view of the problems in the above background art, the utility model aims to provide a car safety belt lock catch adjusting mechanism.

[0005] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0006] A car safety belt lock catch adjusting mechanism, comprising a seat framework, a seat cushion foam is slidably installed on the seat framework, an active space is arranged on the seat cushion foam, a stepped bolt is locked and installed on the side surface of the seat framework, a metal limiting plate is sleeved on the stepped bolt, a limiting plug is arranged on one side of the metal limiting plate, the other side of the limiting plug is inserted into the seat framework, a notch groove is arranged on the other side of the metal limiting plate, a flower pad is installed on the left side of the stepped bolt, a lock catch body is installed on the flower pad, the top of the lock catch body is arranged in the active space, a lock hole is arranged on the lock catch body, a metal distance ring is installed on the left side of the flower pad of the stepped bolt, a torsional spring is installed on the metal distance ring, one end of the torsional spring is clamped in the lock hole, the other end of the torsional spring is clamped in the notch groove, a metal shaft sleeve is installed on the stepped bolt, and the metal shaft sleeve is arranged between the seat framework and the metal distance ring.

[0007] Further limited, a waist-shaped hole is arranged on the seat framework, and the other side of the limiting plug is installed in the waist-shaped hole. Such a structure design facilitates the limiting installation of the metal limiting plate.

[0008] Further limit, the plastic flower pad is provided with an opening on one side in an I-shaped structure.

[0009] Further limit, the metal distance ring is provided in a T-shaped structure. Such a structure design limits one side of the torsion spring.

[0010] Further limit, the stepped bolt is further provided with a tooth-shaped locking washer, which is installed between the seat framework and the metal shaft sleeve. Such a structure design strengthens, seals, and prevents loosening and vibration through the tooth-shaped locking washer.

[0011] The utility model discloses a seat cushion position, seat height and front and back adjusting function, improve the assembly application performance of safety belt lock catch, satisfy the up and down and front and back adjusting function of seat, guarantee the comfort requirement of passenger to safety system, can satisfy the regulation requirement simultaneously, provide reliable safety guarantee. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model can be further illustrated by the non-limiting embodiment shown in the drawings.

[0013] Figure 1 For the structure schematic diagram of the automobile safety belt lock catch adjusting mechanism of the utility model embodiment;

[0014] Figure 2 For the lock catch body shaft side structure schematic diagram of the automobile safety belt lock catch adjusting mechanism of the utility model embodiment;

[0015] Figure 3 For the lock catch body explosion structure schematic diagram of the automobile safety belt lock catch adjusting mechanism of the utility model embodiment;

[0016] Figure 4 For the A place enlarged structure schematic diagram of the automobile safety belt lock catch adjusting mechanism of the utility model embodiment;

[0017] The main element symbol explanation is as follows:

[0018] Seat framework 1, seat cushion foam 2, activity space 3, stepped bolt 4, metal limiting plate 5, limiting plug 6, notch groove 7, plastic flower pad 8, lock catch body 9, lock hole 10, metal distance ring 11, torsion spring 12, metal shaft sleeve 13, waist type hole 14, opening 15, tooth-shaped locking washer 16. DETAILED DESCRIPTION

[0019] In order to make the person skilled in the art can better understand the utility model, the utility model technical scheme is further illustrated below in connection with the drawings and examples.

[0020] As Figures 1-4 The utility model discloses a kind of seat belt lock catch adjusting mechanisms of automobile, seat cushion foam 2 is slidably installed on seat framework 1, active space 3 is equipped on seat cushion foam 2, stepped bolt 4 is locked and installed on the side surface of seat framework 1, metal limiting plate 5 is sleeved on stepped bolt 4, one side of metal limiting plate 5 is equipped with limiting plug 6, the other side of limiting plug 6 is inserted into seat framework 1, the other side of metal limiting plate 5 is equipped with notch groove 7, flower pad 8 is installed on the left side of metal limiting plate 5 of stepped bolt 4, lock catch body 9 is installed in flower pad 8, the top of lock catch body 9 is arranged in active space 3, lock hole 10 is equipped on lock catch body 9, metal distance ring 11 is installed on the left side of flower pad 8 of stepped bolt 4, torsion spring 12 is installed on metal distance ring 11, one end of torsion spring 12 is clamped in lock hole 10, the other end of torsion spring 12 is clamped in notch groove 7, metal shaft sleeve 13 is installed on stepped bolt 4, metal shaft sleeve 13 is arranged between seat framework 1 and metal distance ring 11.

[0021] Preferably, waist type hole 14 is equipped on seat framework 1, the other side of limiting plug 6 is installed in waist type hole 14.Such structural design facilitates the limiting installation of metal limiting plate 5.In fact, other limiting installation structure shapes of limiting plug 6 can also be considered according to specific circumstances.

[0022] Preferably, plastic flower pad 8 is arranged in the shape of an I-beam, and one side of the plastic flower pad 8 is provided with an opening 15.Such structural design facilitates the installation of the lock catch body.In fact, other structure shapes of plastic flower pad 8 can also be considered according to specific circumstances.

[0023] Preferably, metal distance ring 11 is arranged in the shape of a T.Such structural design limits one side of torsion spring 12.In fact, other structure shapes of metal distance ring 11 can also be considered according to specific circumstances.

[0024] Preferably, stepped bolt 4 is also sleeved with a tooth-shaped locking washer 16, and the tooth-shaped locking washer 16 is installed between seat framework 1 and metal shaft sleeve 13.Such structural design plays the role of strengthening, sealing, and preventing loosening and vibration through the tooth-shaped locking washer 16.In fact, other structure shapes of tooth-shaped locking washer 16 can also be considered according to specific circumstances.

[0025] In the embodiment, the metal limiting plate 5, the plastic flower pad 8, the lock body 9, the metal distance ring 11, the torsion spring 12, the metal shaft sleeve 13 and the tooth-shaped locking washer 16 are sequentially sleeved on the stepped bolt 4, the lock body 9 is installed on the plastic flower pad 8, the plastic flower pad 8 is installed on the stepped bolt 4, the torsion spring 12 is installed on the metal distance ring 11, one end of the torsion spring 12 is clamped in the lock hole 10 of the lock body 9, the other end is clamped in the notch groove 7 of the metal limiting plate 5, the initial installation position of the lock body 9 and the metal limiting plate 5 can be fixed by using the force of the torsion spring 12, finally, the stepped bolt 4 is locked and installed on the seat frame 1, the lock body 5 is fixed and installed, the top of the lock body 5 is placed in the movable space 3 of the seat cushion foam 2, at this time, the limiting plug 6 on the metal limiting plate 5 is inserted into the waist-shaped hole 14 on the seat frame 1 for limiting, and the torsion spring 12 is supported at one end when the lock body 9 rotates.

[0026] When the seat cushion foam 2 is adjusted forward and downward, the seat cushion foam 2 pushes the lock body 9 to rotate, the torsion spring 12 is clamped in the lock hole 10 of the lock body 9, the torsion spring 12 is stressed when the lock body 9 rotates, the elastic force is uniform and has a damping feeling, the normal rotation of the lock body 9 is ensured, and the abnormal sound generated by the rotation friction of the rivet structure lock is avoided, when the seat cushion foam 2 is adjusted back to the initial position, the lock body 9 is pushed to rotate back to the initial installation position, when the seat is adjusted in height and forward and backward, the lock body 9 is installed on the seat frame 1, can move with the seat in height and forward and backward, and the lock can be normally used.

[0027] The above embodiment only exemplarily illustrates the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A car seatbelt buckle adjustment mechanism, characterized in that: The system includes a seat frame (1), on which a seat cushion foam (2) is slidably mounted. The seat cushion foam (2) has a movable space (3). A step bolt (4) is locked onto the side of the seat frame (1). A metal limiting plate (5) is fitted onto the step bolt (4). A limiting block (6) is provided on one side of the metal limiting plate (5), and the other side of the limiting block (6) is inserted into the seat frame (1). A notch (7) is provided on the other side of the metal limiting plate (5). A plastic flower pad (8) is installed on the left side of the metal limiting plate (5) by the step bolt (4). The pad (8) is equipped with a locking body (9), the top of which is located in the movable space (3). The locking body (9) has a locking hole (10). The step bolt (4) is equipped with a metal spacer ring (11) on the left side of the pad (8). A torsion spring (12) is installed on the metal spacer ring (11). One end of the torsion spring (12) is locked in the locking hole (10), and the other end is locked in the notch (7). A metal bushing (13) is installed on the step bolt (4). The metal bushing (13) is located between the seat frame (1) and the metal spacer ring (11).

2. The automotive seatbelt buckle adjustment mechanism according to claim 1, characterized in that: The seat frame (1) is provided with a waist-shaped hole (14), and the other side of the limiting plug (6) is installed in the waist-shaped hole (14).

3. The automotive seatbelt buckle adjustment mechanism according to claim 2, characterized in that: The plastic flower mat (8) is arranged in an I-shape, and an opening (15) is provided on one side of the plastic flower mat (8).

4. The automotive seatbelt buckle adjustment mechanism according to claim 3, characterized in that: The metal spacer ring (11) is arranged in a T-shape.

5. The automotive seatbelt buckle adjustment mechanism according to claim 4, characterized in that: The stepped bolt (4) is also fitted with a toothed locking washer (16), which is installed between the seat frame (1) and the metal bushing (13).