A car seat belt buckle preventing noise

CN224796935UActive Publication Date: 2026-09-25ZHEJIANG WANLI SAFETY EQUIP MFG
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Patent Information

Application Number
CN202521912990.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-05
Publication Date
2026-09-25
Estimated Expiration
2035-09-05

AI Technical Summary

Technical Problem

[0003]针对现有技术的不足,本实用新型提供了一种防止异响的汽车安全带锁舌,以解决锁舌使用时颠簸晃动时,会出现响动噪音,其随着使用缝隙加大,其左右摇晃噪音大的问题

Benefits of technology

通过采用在第一外包支撑壳件和第二外包支撑壳件内滑动设置有弹性挤压机构,在锁舌扣接在锁座上后,其降噪挤压拉板可稳定挤压在锁座的外表面,可对锁舌具有向外的牵引力,可拉紧锁舌,其锁舌不会晃动,不会出现在缝隙内晃动碰撞造成的噪音响动。

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Abstract

The utility model relates to a kind of automobile safety belt lock tongue technical field of preventing abnormal sound, and disclose a kind of automobile safety belt lock tongue preventing abnormal sound, including safety belt lock tongue main body, the outer surface of safety belt lock tongue main body is fixedly installed with first outer package support shell piece and second outer package support shell piece, the outer end of first outer package support shell piece and second outer package support shell piece is provided with T telescopic positioning slide bar, the outer end face of T telescopic positioning slide bar is fixedly connected with noise reduction extrusion pull plate, the inner side surface of noise reduction extrusion pull plate is slidably sleeved in the outer surface of safety belt lock tongue main body, compression spring and T telescopic positioning slide bar are slidably installed in the semicircular butt joint sliding groove of first outer package support shell piece and second outer package support shell piece, by extrusion reverse pull assembly, the traction force outward can be had to lock tongue, lock tongue can be tensioned, lock tongue cannot be shaken, and the noise sound caused by shaking and colliding in gap cannot appear.
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Description

Technical Field

[0001] This utility model relates to the technical field of car seat belt locking tongues for preventing abnormal noises, specifically a car seat belt locking tongue for preventing abnormal noises. Background Technology

[0002] In a car's seatbelt system, a crucial component is the seatbelt locking latch. Its main function is to securely lock the seatbelt in place when it is pulled out, preventing it from retracting unexpectedly in the event of a sudden stop or collision, thus providing passenger safety. The seatbelt connects to the vehicle's anchor points via the locking latch; once the passenger pulls out the seatbelt, the latch automatically locks, maintaining the seatbelt's tension. This design ensures that in the event of a collision or emergency braking, the seatbelt firmly restrains the passenger, preventing them from colliding with hard objects inside the vehicle and minimizing the risk of injury. Given the critical role of the seatbelt locking latch in passenger safety, automakers implement rigorous testing and quality control during the design and production process to ensure this component functions properly in emergency situations. In conclusion, the seatbelt locking latch is a vital part of ensuring our driving safety. We should always ensure the integrity and reliability of the seatbelt system and use seatbelts correctly while riding in a car to provide maximum protection for ourselves and our families. However, in modern locking mechanisms, after the locking tongue is engaged with the lock seat, there is a gap, which allows it to wobble slightly. When it is shaken or wobbled during use, it will produce noise. As the gap widens with use, the noise from its left-right wobbling will increase. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a car seat belt latch that prevents abnormal noises, thus solving the problem that the latch makes noises when it shakes or vibrates during use, and that the noise increases as the gap widens with use.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a car seat belt latch to prevent abnormal noise, comprising a seat belt latch body, a first outer support shell and a second outer support shell fixedly installed on the outer surface of the seat belt latch body, a T-shaped telescopic positioning slide rod provided at the outer end of the first and second outer support shells, a noise-reducing compression pull plate fixedly connected to the outer end face of the T-shaped telescopic positioning slide rod, the inner surface of the noise-reducing compression pull plate slidably sleeved on the outer surface of the seat belt latch body, a semi-circular docking groove provided on the inner surface of the first and second outer support shells, a compression spring and a T-shaped telescopic positioning slide rod slidably installed in the semi-circular docking groove of the first and second outer support shells.

[0005] Preferably, the inner sides of the first and second outer supporting shells are provided with positioning grooves, and the seat belt locking tongue body is snapped onto the inner surface of the positioning groove.

[0006] Preferably, the first and second outer supporting shells are made of engineering plastics, and their outer surfaces are coated with a rubber layer.

[0007] Preferably, the first outer support shell and the second outer support shell are fixedly connected by screws. The screws are distributed at three points to fix the first outer support shell and the second outer support shell, forming a multi-point locking mechanism, which ensures a firm and stable installation.

[0008] Preferably, the T-shaped telescopic positioning slide bar and the noise-reducing extrusion plate are made of stainless steel with a smooth polished outer surface.

[0009] Preferably, the inner surface of the noise-reducing extrusion plate is provided with a square sliding opening, which is slidably sleeved on the outer surface of the seat belt locking tongue body.

[0010] Preferably, the outer surface of the noise-reducing extrusion plate is covered with a silicone layer. The silicone layer is soft and cushioning, and the noise-reducing extrusion plate 5 can avoid wear and noise when it is pressed against the lock seat.

[0011] Compared with the prior art, this utility model provides a car seat belt locking tongue to prevent abnormal noise, which has the following beneficial effects: By employing an elastic compression mechanism that is slidably installed inside the first and second outer supporting shells, after the lock tongue is engaged with the lock seat, its noise-reducing compression pull plate can be stably compressed on the outer surface of the lock seat, which can exert an outward traction force on the lock tongue, tighten the lock tongue, and prevent the lock tongue from shaking or colliding in the gap, thus avoiding noise. Attached Figure Description

[0012] Figure 1 This is the first schematic diagram of the overall structure; Figure 2 This is the second schematic diagram of the overall structure; Figure 3 This is a schematic diagram of the first cross-section of the overall structure; Figure 4 This is a schematic diagram of the second cross-section of the overall structure; Figure 5 This is a schematic diagram showing the distribution relationship between the noise reduction extrusion plate and the T-shaped telescopic positioning slide rod.

[0013] In the diagram: 1. Seatbelt locking tongue body; 2. First outer supporting shell; 3. Second outer supporting shell; 4. T-shaped telescopic positioning slide bar; 5. Noise-reducing extrusion pull plate; 6. Semi-circular docking groove; 7. Compression spring; 230 screw; 51. Square sliding opening; 50. Silicone layer. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] This utility model provides a technical solution: a car seatbelt locking tongue to prevent abnormal noises, according to the appendix. Figure 1-5 As shown, the device includes a seatbelt latch body 1. A first outer support shell 2 and a second outer support shell 3 are fixedly mounted on the outer surface of the seatbelt latch body 1. T-shaped telescopic positioning slide rods 4 are provided at the outer ends of the first and second outer support shells 2 and 3. Noise-reducing compression pull plates 5 are fixedly connected to the outer end faces of the T-shaped telescopic positioning slide rods 4. The inner surface of the noise-reducing compression pull plates 5 is slidably sleeved on the outer surface of the seatbelt latch body 1. The inner surfaces of the first and second outer support shells 2 and 3 are provided with… There is a semi-circular docking groove 6. A compression spring 7 and a T-shaped telescopic positioning slide rod 4 are slidably installed in the semi-circular docking groove 6 of the first outer supporting shell 2 and the second outer supporting shell 3. By adopting an elastic extrusion mechanism slidably set in the first outer supporting shell and the second outer supporting shell, after the lock tongue is engaged with the lock seat, its noise reduction extrusion pull plate can be stably extruded on the outer surface of the lock seat, which can exert an outward traction force on the lock tongue, tighten the lock tongue, and the lock tongue will not shake, and there will be no noise caused by shaking and collision in the gap. The inner sides of the first outer support shell 2 and the second outer support shell 3 are provided with positioning grooves, and the seat belt locking tongue body 1 is snapped and installed on the inner surface of the positioning grooves; the inner sides of the first outer support shell 2 and the second outer support shell 3 are provided with positioning grooves, and when the two first outer support shells 2 and the second outer support shell 3 are clamped and fixed to the outside of the seat belt locking tongue body 1, they can be clamped and positioned, and the fixation is firm and stable; The first outer support shell 2 and the second outer support shell 3 are made of engineering plastics, and their outer surfaces are coated with a rubber layer; the surface is wear-resistant, reduces noise when impacted, and the rubber layer can provide soft material cushioning. The first outer support shell 2 and the second outer support shell 3 are fixedly connected by screws 230. The screws 230 are distributed at three points to fix the first outer support shell 2 and the second outer support shell 3. The three-point distribution of the screws 230 makes it convenient to fix the first outer support shell 2 and the second outer support shell 3, and the fixation is firm and stable. The T-shaped telescopic positioning slide bar 4 and the noise reduction extrusion plate 5 are made of stainless steel, and their outer surfaces are smoothly polished. The friction is small when sliding, and the T-shaped telescopic positioning slide bar 4 slides and extends smoothly and easily in the semi-circular docking groove 6. The inner surface of the noise-reducing extrusion pull plate 5 is provided with a square sliding opening 51, which is slidably sleeved on the outer surface of the seat belt locking tongue body 1; the sleeve is stable, and the outer surface of the noise-reducing extrusion pull plate 5 is covered with a silicone layer 50; when the noise-reducing extrusion pull plate 5 is pressed against the lock seat, it can avoid wear and noise. The working principle of this device is as follows: During use, semi-circular mating grooves 6 are provided on the inner surfaces of the first outer support shell 2 and the second outer support shell 3. A compression spring 7 and a T-shaped telescopic positioning rod 4 are slidably installed within these semi-circular mating grooves 6. A noise-reducing compression plate 5 is fixedly connected to the outer end face of the T-shaped telescopic positioning rod 4. The inner surface of the noise-reducing compression plate 5 is slidably fitted onto the outer surface of the seat belt latch body 1. When the seat belt latch body 1 is fastened to the outside of the lock seat, the noise-reducing compression plate 5 needs to be compressed inwards to retract. After the seat belt latch body 1 is fastened, the noise-reducing compression plate 5 retracts. The pressure plate 5, through the internal pressure spring 7, presses the T-shaped telescopic positioning slide rod 4 outward, which can drive the noise-reducing pressure plate 5 to firmly press against the outer surface of the lock seat. At this time, it can press outward to tighten the seat belt lock tongue body 1, preventing the seat belt lock tongue body 1 from shaking. The fastening is stable and there will be no noise when shaking or colliding. When the noise-reducing pressure plate 5 is pressed against the outside of the lock seat, because the inner surface of the noise-reducing pressure plate 5 is provided with a square sliding opening 51, the square sliding opening 51 slides and fits onto the outer surface of the seat belt lock tongue body 1. It can slide outside the seat belt lock tongue body 1, which can keep the seat belt lock tongue body 1 in position and prevent any shaking. The outer surface of the noise-reducing extrusion plate 5 is covered with a silicone layer 50; when the noise-reducing extrusion plate 5 is extruded outside the lock seat, it can avoid wear and noise; during installation, the outer surface of the seat belt lock tongue body 1 is fixedly installed with a first outer support shell 2 and a second outer support shell 3, and a compression spring 7 and a T-shaped telescopic positioning slide rod 4 are slidably installed in the semi-circular docking groove 6 of the first outer support shell 2 and the second outer support shell 3; it can be clamped, installed and disassembled, and is easy to use. The first outer support shell 2 and the second outer support shell 3 are fixedly connected by screws 230, and the screws 230 are distributed at three points to fix the first outer support shell 2 and the second outer support shell 3; the three-point distribution of the screws 230 to fix the first outer support shell 2 and the second outer support shell 3 is convenient, and the fixation is firm and stable.

[0016] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car seatbelt latch to prevent abnormal noise, comprising a seatbelt latch body (1), characterized in that: The outer surface of the seat belt latch body (1) is fixedly installed with a first outer support shell (2) and a second outer support shell (3). The outer ends of the first outer support shell (2) and the second outer support shell (3) are provided with T-shaped telescopic positioning slide rods (4). The outer end face of the T-shaped telescopic positioning slide rod (4) is fixedly connected with a noise reduction extrusion pull plate (5). The inner surface of the noise reduction extrusion pull plate (5) is slidably sleeved on the outer surface of the seat belt latch body (1). The inner surfaces of the first outer support shell (2) and the second outer support shell (3) are provided with semi-circular docking grooves (6). The semi-circular docking grooves (6) of the first outer support shell (2) and the second outer support shell (3) are slidably installed with a compression spring (7) and a T-shaped telescopic positioning slide rod (4).

2. The car seatbelt locking tongue for preventing abnormal noise according to claim 1, characterized in that: The first outer support shell (2) and the second outer support shell (3) are provided with positioning grooves on their inner sides, and the seat belt locking tongue body (1) is snapped onto the inner surface of the positioning groove.

3. The car seatbelt locking tongue for preventing abnormal noise according to claim 1, characterized in that: The first outer support shell (2) and the second outer support shell (3) are made of engineering plastic material, and their outer surfaces are coated with a rubber layer.

4. The car seatbelt locking tongue for preventing abnormal noise according to claim 1, characterized in that: The first outer support shell (2) and the second outer support shell (3) are fixedly connected by screws (230), and the screws (230) are distributed at three points to fix the first outer support shell (2) and the second outer support shell (3).

5. A car seatbelt locking tongue for preventing abnormal noise according to claim 1, characterized in that: The T-shaped telescopic positioning slide bar (4) and the noise reduction extrusion plate (5) are made of stainless steel and have a smooth polished outer surface.

6. The car seatbelt locking tongue for preventing abnormal noise according to claim 1, characterized in that: The inner surface of the noise reduction extrusion plate (5) is provided with a square sliding opening (51), which is slidably sleeved on the outer surface of the seat belt locking tongue body (1).

7. The car seatbelt locking tongue for preventing abnormal noise according to claim 1, characterized in that: The outer surface of the noise-reducing extrusion plate (5) is covered with a silicone layer (50).