Safety belt lock catch

Abstract

The utility model relates to the technical field of safety belt lock catches, and discloses a safety belt lock catch which comprises a lock catch body and an inserting buckle body, the lock catch body comprises an upper shell and a lower shell, the upper shell and the lower shell form a shell structure through bolts, and an inserting hole for the inserting buckle body to enter is formed in the upper top end after the upper shell and the lower shell are combined. The outer side wall of the upper shell is provided with an elastic pressure plate which automatically resets after being pressed, the unlocking assembly is arranged, in the using process, the inserting buckle body and the lock catch body can be separated through the unlocking assembly, a user presses the elastic pressure plate with fingers and applies pressure to the outer frame, the elastic piece can be compressed when the outer frame is stressed, and the elastic piece can reset automatically after being pressed. Due to the limitation of the inclined groove, the spring bolt can only slide in the inclined groove and cannot be located in the groove in the outer wall of the buckle body in a clamped mode along with the movement of the inclined groove, and at the moment, a user only needs to pull out the buckle body from the interior of the lock catch body.

Description

Technical Field

[0001] The utility model relates to the technical field of seat belt buckles, and specifically, to a seat belt buckle. Background Art

[0002] With the rapid development of the automotive industry, cars have become an indispensable means of transportation in modern society. However, while cars bring convenience, they are also accompanied by certain safety risks. To ensure the safety of drivers and passengers, as an important part of the passive safety system of cars, the performance and reliability of seat belts have received increasing attention. As a key component connecting the seat belt and the vehicle body, the design, manufacturing, and performance of the seat belt buckle are directly related to the overall effectiveness of the seat belt and the safety of passengers.

[0003] The unlocking button of the commonly used automotive seat belt buckle in the market is generally single and set at the end of the buckle. When the seat belt is disconnected, a relatively large pressing force is applied to the buckle through the seat cushion as an indirect support point to enable the locking tongue to disengage from the groove of the buckle body. When applying pressure to the buckle, due to the limitations of hand strength and stability, it is often difficult for users to accurately control the pressing direction and force, which easily leads to pressing deviation, making it impossible for the locking tongue to smoothly disengage from the groove of the buckle body, thus increasing the difficulty and risk of unlocking. Using components such as seat cushions as pressing support points for a long time will not only cause unnecessary wear and damage to these components, but also may affect the cleanliness and comfort inside the vehicle, bringing inconvenience to passengers. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a seat belt buckle to solve the problems that when applying pressure to the buckle, due to the limitations of hand strength and stability, it is often difficult for users to accurately control the pressing direction and force, which easily leads to pressing deviation, making it impossible for the locking tongue to smoothly disengage from the groove of the buckle body, thus increasing the difficulty and risk of unlocking. Using components such as seat cushions as pressing support points for a long time will not only cause unnecessary wear and damage to these components, but also may affect the cleanliness and comfort inside the vehicle, bringing inconvenience to passengers.

[0005] The utility model provides the following technical solution: A seat belt buckle, comprising a buckle body and a buckle body of the plug. The buckle body includes an upper shell and a lower shell, and the upper shell and the lower shell form a shell structure through bolts. After the upper shell and the lower shell are combined, a jack for the plug buckle body to enter is formed at the upper top end. An elastic pressure plate that automatically resets after being pressed is arranged on the outer side wall of the upper shell. An unlocking component for separating the plug buckle body is arranged inside the buckle body.

[0006] With the above - mentioned solution, through the bolt - combination structure of the upper shell and the lower shell, not only is the overall stability of the buckle body enhanced, but also it is convenient for maintenance and replacement of components, improving the durability and service life of the product. Each component can independently perform its function, reducing the risk of overall failure caused by the damage of a single component. The elastic pressure plate arranged on the outer side wall of the shell can automatically reset when subjected to external force, providing users with intuitive feedback and feel, improving the response speed of the buckle in emergency situations, and ensuring that passengers can quickly and accurately unbuckle the seat belt when needed.

[0007] As a preference of the above - mentioned technical solution, the unlocking component includes an outer frame slidably connected to the inner bottom end of the lower shell. An M - shaped elastic sheet is placed on the inner side wall of the outer frame. A U - shaped frame body is placed on the inner side wall of the outer frame. L - shaped inner grooves are symmetrically opened on the outer wall of the outer frame. A lock tongue for clamping the buckle body is placed inside the inner groove. An inclined groove is penetrated through the upper top end of the U - shaped frame body, and the lock tongue is inclined and placed inside the inclined groove.

[0008] With the above - mentioned solution, the outer frame slidably connected to the inner bottom end of the lower shell, as the support structure of the unlocking component, ensures the stability and durability of the whole component, making the unlocking process smoother and reducing the risk of unlocking failure caused by component loosening or misalignment. The ingenious use of the M - shaped elastic sheet on the inner side wall of the outer frame not only enhances the elastic restoring force of the component but also ensures that the lock tongue can respond quickly and accurately when subjected to external force. The shape design of the elastic sheet enables it to store energy when compressed and quickly reset after the external force disappears, thus ensuring the reusability and reliability of the buckle.

[0009] As a preference of the above - mentioned technical solution, a limiting plate is fixedly connected to the inner bottom end of the lower shell. A limiting end is integrally formed at the end of the U - shaped frame body. The U - shaped frame body is limited and clamped inside the limiting plate through the limiting end.

[0010] With the above - mentioned solution, the limiting plate serves as a stable support point, providing an immovable reference surface for the U - shaped frame body to ensure that the U - shaped frame body will not shift or shake when subjected to external force. The clamping design of the limiting end further firmly locks the U - shaped frame body inside the limiting plate, forming a stable structural unit, improving the durability and reliability of the whole unlocking component. Since the limiting end and the U - shaped frame body are integrally formed, there is no need for additional installation steps or parts to fix the U - shaped frame body, not only saving manufacturing costs but also making it more convenient and fast for maintenance or replacement of components. At the same time, since the limiting plate is fixedly connected to the inner bottom end of the lower shell, there is no need to worry about its loosening or falling off during long - term use.

[0011] As a preferred embodiment of the above technical solution, the inner bottom end of the U-shaped frame body is limitedly connected with an abutment frame, and the abutment frame is located at the end of the U-shaped frame body, the inner bottom end of the U-shaped frame body is located at the inner side wall of the abutment frame, and is slidably connected with a limit platform that abuts the end of the buckle body, and the side where the limit platform and the abutment frame are close to each other are fixedly connected with a support column, and the outer walls of the two support columns are sleeved with limit springs that serve as automatic reset.

[0012] By adopting the above scheme, the limiting clamping mode of the abutment frame and the U-shaped frame body ensures the stability of the abutment frame and the accuracy of the position, so that the abutment frame can be firmly fixed inside the U-shaped frame body and will not be displaced due to external vibration or impact, thereby ensuring the stability and reliability of the entire unlocking assembly. The sliding connection design of the limit platform on the inner wall of the abutment frame provides precise guidance and stable support for the insertion and locking of the buckle body. When the buckle body is inserted into the socket, its end will first contact the limit platform and push it to slide toward the abutment frame, which not only reduces the impact force of the buckle body on the lock buckle, but also enables the buckle body to enter the lock buckle more smoothly, thereby improving the accuracy and efficiency of insertion.

[0013] As a preferred embodiment of the above technical solution, the end of the buckle body is formed with a chamfer for conveniently applying pressure to the lock tongue, and the outer side wall of the buckle body is provided with a groove for locking the lock tongue.

[0014] By adopting the above scheme, the chamfered design at the end of the buckle body cleverly reduces the resistance during insertion, allowing the user to push the buckle body into the insertion hole of the lock body more smoothly and with less effort, reducing the risk of damage or failure caused by unsmooth insertion. The chamfered design not only facilitates insertion, but also naturally guides the lock tongue into its predetermined position during the insertion process.

[0015] As a preferred embodiment of the above technical solution, the ends of the lock buckle body and the insert buckle body are both provided with through grooves for connecting with the safety belt.

[0016] With the above solution, the groove design enables the seat belt to easily pass through the lock body and the buckle body without complicated winding or fixing steps, which greatly simplifies the installation and removal process of the seat belt and makes it convenient for the driver or passenger to quickly adjust the tightness or position of the seat belt when needed.

[0017] As a preferred embodiment of the above technical solution, one end of the spring sheet is limitatively connected to the inner wall of the outer frame by bolts, and the other end abuts against the outer wall of the U-shaped frame body.

[0018] With the above - mentioned solution, the elastic piece is tightly connected to the outer frame through bolts, forming a stable support point, effectively preventing the elastic piece from loosening or falling off during use, enabling the elastic piece to continuously and reliably function, providing stable support and restoring force for the outer frame, thereby enhancing the stability of the entire buckle structure. After unlocking, the outer frame can quickly return to its initial position, ensuring the reusability and reliability of the buckle. The restoring performance of the elastic piece also ensures that the locking tongue can accurately and timely engage with or disengage from the groove of the buckle body, improving the locking and unlocking efficiency of the buckle.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] In the present utility model, by providing an unlocking component, during use, the buckle body can be separated from the plug - in buckle body through the unlocking component. Among them, the user presses the elastic pressure plate with a finger and applies pressure to the outer frame. The outer frame will compress the elastic piece under force and drive the locking tongue to move through the inner groove. Due to the limitation of the inclined groove, the locking tongue can only slide inside the inclined groove. As the inclined groove moves, it will no longer be engaged with the groove on the outer wall of the plug - in buckle body. At this time, the user only needs to pull out the plug - in buckle body from the inside of the buckle body, avoiding the need to use the seat cushion as a support point to press downwards, which is prone to deviation during pressing. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of a seat - belt buckle structure;

[0022] Figure 2 It is a schematic diagram of the disassembled structure of the buckle body in a seat - belt buckle;

[0023] Figure 3 It is a schematic diagram of the separated structure of the plug - in buckle body in a seat - belt buckle;

[0024] Figure 4 It is a schematic diagram of the top - part sectional structure of the U - shaped frame body in a seat - belt buckle;

[0025] Figure 5 It is a schematic diagram of the disassembled structure of the U - shaped frame body and the outer frame in a seat - belt buckle.

[0026] In the figure: 1. Buckle body; 11. Elastic pressure plate; 12. Plug - in buckle body; 13. Jack; 14. Upper shell; 15. Lower shell; 16. Limiting plate; 2. U - shaped frame body; 21. Limiting end; 22. Inclined groove; 23. Limiting platform; 24. Contacting frame; 25. Pillar; 26. Limiting spring; 3. Outer frame; 31. Elastic piece; 32. Inner groove; 33. Locking tongue. Detailed Embodiments

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] like Figure 1 and Figure 2 As shown, the utility model provides a technical solution: a seat belt buckle, including a buckle body 1 and a buckle body 12, the buckle body 1 includes an upper shell 14 and a lower shell 15, and the upper shell 14 and the lower shell 15 form a shell structure through bolts, and after the upper shell 14 and the lower shell 15 are combined, a plug hole 13 for the buckle body 12 to enter is formed at the upper top, and the outer wall of the upper shell 14 is provided with an elastic pressure plate 11 that automatically resets after being compressed, and an unlocking component for separating the buckle body 12 is provided inside the buckle body 1.

[0029] like Figure 2 , Figure 3 and Figure 4 As shown, the unlocking assembly includes an outer frame 3 slidably connected to the inner bottom end of the lower shell 15, an M-shaped spring piece 31 is placed on the inner side wall of the outer frame 3, a U-shaped frame body 2 is placed on the inner side wall of the outer frame 3, and an L-shaped inner groove 32 is symmetrically opened on the outer wall of the outer frame 3. A locking tongue 33 for snapping into the buckle body 12 is placed inside the inner groove 32, and an inclined groove 22 is opened through the upper top of the U-shaped frame body 2, and the locking tongue 33 is tilted and placed inside the inclined groove 22.

[0030] like Figure 3 , Figure 4 and Figure 5 As shown, the inner bottom end of the lower shell 15 is fixedly connected to the limit plate 16, and the end of the U-shaped frame body 2 is integrally formed with a limit end 21. The U-shaped frame body 2 is limitedly clamped in the inside of the limit plate 16 through the limit end 21. The inner bottom end of the U-shaped frame body 2 is limitedly clamped with an abutment frame 24, and the abutment frame 24 is located at the end of the U-shaped frame body 2. The inner bottom end of the U-shaped frame body 2 is located at the inner side wall of the abutment frame 24 and is slidably connected with a limit platform 23 that abuts the end of the buckle body 12, and the limit platform 23 is connected to the abutment frame 24. The sides close to each other are fixedly connected with a pillar 25, and the outer walls of the two pillars 25 are sleeved with a limit spring 26 for automatic reset. The end of the buckle body 12 is formed with a chamfer for conveniently applying pressure to the lock tongue 33. The outer wall of the buckle body 12 is provided with a groove for clamping the lock tongue 33. The ends of the lock body 1 and the buckle body 12 are both provided with a through groove for connecting the safety belt. One end of the spring piece 31 is limitedly connected to the inner wall of the outer frame 3 by a bolt, and the other end abuts against the outer wall of the U-shaped frame body 2.

[0031] Working principle: When in use, the buckle main body 12 is inserted into the inside of the lock body 1 through the jack 13. As the buckle main body 12 enters the inside of the lock body 1, due to the chamfer at the end, the outer wall of the lock tongue 33 will be pressed. Affected by the force on the lock tongue 33, the inner groove 32 will be pulled to move at the inner bottom end of the lower shell 15, and the lock tongue 33 will move inside the inclined groove 22. At this time, the buckle main body 12 will completely enter the inside of the lock body 1, and the end will abut against the inside of the limit platform 23. When the pressure is lost, the outer frame 3 will be automatically reset driven by the elastic piece 31. At this time, the lock tongue 33 will also be driven to reset, and the lock tongue 33 just engages at the groove on the outer wall of the buckle main body 12 to limit the buckle main body 12. When it is necessary to separate the lock body 1 from the buckle main body 12, the user presses the elastic pressure plate 11 with a finger and applies pressure to the outer frame 3. The outer frame 3 is stressed and compresses the elastic piece 31, and drives the lock tongue 33 to move through the inner groove 32. Due to the limitation of the inclined groove 22, the lock tongue 33 can only slide inside the inclined groove 22. As the inclined groove 22 moves, it will no longer engage at the groove on the outer wall of the buckle main body 12. At this time, the user only needs to pull out the buckle main body 12 from the inside of the lock body 1. In this way, it can be avoided that during the separation process of the buckle main body 12 and the lock body 1, it is necessary to press down with the seat cushion as a support point, which is prone to deviation during pressing and increases stability.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A seat belt buckle, comprising a buckle body (1) and a plug buckle body (12), characterized in that: The lock body (1) comprises an upper shell (14) and a lower shell (15), and the upper shell (14) and the lower shell (15) form a shell structure by means of bolts. When the upper shell (14) and the lower shell (15) are assembled, a plug hole (13) is formed at the top end thereof for the insertion of the lock body (12). An elastic pressure plate (11) which automatically resets after being compressed is provided on the outer side wall of the upper shell (14). An unlocking component for separating the insertion body (12) is provided inside the lock body (1).

2. The seat belt buckle according to claim 1, characterized in that: The unlocking assembly comprises an outer frame (3) slidably connected to the inner bottom end of the lower shell (15); an M-shaped spring piece (31) is placed on the inner side wall of the outer frame (3); a U-shaped frame body (2) is placed on the inner side wall of the outer frame (3); an L-shaped inner groove (32) is symmetrically opened on the outer wall of the outer frame (3); a locking tongue (33) for locking the buckle body (12) is placed inside the inner groove (32); an inclined groove (22) is opened through the upper top of the U-shaped frame body (2), and the locking tongue (33) is tiltedly placed inside the inclined groove (22).

3. The seat belt buckle according to claim 2, characterized in that: The inner bottom end of the lower shell (15) is fixedly connected to a limit plate (16), and the end of the U-shaped frame body (2) is integrally formed with a limit end (21), and the U-shaped frame body (2) is limit-engaged in the interior of the limit plate (16) via the limit end (21).

4. The seat belt buckle according to claim 2, characterized in that: The inner bottom end of the U-shaped frame body (2) is limitedly connected to an abutment frame (24), and the abutment frame (24) is located at the end of the U-shaped frame body (2). The inner bottom end of the U-shaped frame body (2) is located at the inner side wall of the abutment frame (24), and is slidably connected to a limit platform (23) that abuts the end of the buckle body (12). The side where the limit platform (23) and the abutment frame (24) are close to each other is fixedly connected to a support column (25), and the outer walls of the two support columns (25) are sleeved with limit springs (26) that serve as automatic reset.

5. The seat belt buckle according to claim 2, wherein: The end of the buckle body (12) is formed with a chamfer for facilitating the application of pressure to the lock tongue (33), and the outer side wall of the buckle body (12) is provided with a groove for clamping the lock tongue (33).

6. The seat belt buckle according to claim 1, characterized in that: The ends of the lock buckle body (1) and the insert buckle body (12) are both provided with through grooves for connecting to the safety belt.

7. A seat belt buckle according to claim 2, characterized in that: One end of the spring sheet (31) is position-limitedly connected to the inner wall of the outer frame (3) via a bolt, and the other end abuts against the outer wall of the U-shaped frame body (2).

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