Automobile safety belt lock catch structure
By setting up an enhanced structure and docking design in the ring body of the car seat belt lock, the problem of insufficient strength of the lock ring body is solved, strength improvement and structural stability are achieved, and service life is extended.
Patent Information
- Application Number
- CN202421620569.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-09
AI Technical Summary
Due to the collision with the metal lock tongue, the ring body of the car seat belt lock is prone to insufficient strength, resulting in poor use stability and shortened service life.
By providing a side reinforcement structure in the annular body, including the first, second and third reinforcement parts, as well as an intermediate reinforcement plate and a support plate, the support strength of the annular body is enhanced, and the butt structure and button design are ensured to ensure a stable assembly of the box cover and the lock box.
It effectively improves the strength of the ring body, reduces the risk of damage caused by long-term use, extends the service life, and ensures the stability and reliability of the lock structure.
Smart Images
Figure CN222859398U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile parts, in particular to a car safety belt buckle structure. Background Art
[0002] The car seat belt buckle is fixedly connected inside the car and cooperates with the seat belt as a safety device used in the car. That is, after the passenger sits on the seat, the seat belt is pulled to surround the passenger, and the tongue on the seat belt is inserted into the seat belt buckle, thereby restraining the passenger in the vehicle seat position.
[0003] A seat belt buckle usually includes a box body, a locking assembly inside the box body, and a button for unlocking. The end of the box body for inserting the lock tongue is an annular body, which is usually made of plastic. When the user pulls the seat belt toward the buckle, the metal lock tongue will inevitably rub against the plastic annular body. Therefore, in order to ensure the stability of the lock box and the buckle, further design research on the strength of the lock box annular body is needed. Summary of the invention
[0004] In view of the above problems, the purpose of the utility model is to provide a car safety belt buckle structure with improved strength and relatively stable structure.
[0005] The automobile safety belt buckle structure comprises a lock box, a box cover, a locking assembly, and a button. One surface of the lock box is an open mouth, one end of the lock box is an annular body, and the annular body is a rectangular insertion space; the box cover is detachably assembled on the lock box to form a cover with the open mouth on the lock box, the locking assembly and the button are arranged in the assembly space formed between the box cover and the lock box, and the outer end of the button is located in the insertion space in the annular body;
[0006] One end of the box cover is a clamping end that is clamped with the annular body, and the other end is a connecting end that is fixedly connected with the lock box through a connecting piece; a clamping structure is provided between the side of the box cover and the side of the open opening of the lock box;
[0007] A pair of side reinforcement structures are provided at two lower corners of the insertion space of the annular body, and the side reinforcement structures connect the side wall and the bottom wall of the annular body;
[0008] The side reinforcement structure includes a first reinforcement part, a second reinforcement part, and a third reinforcement part of a plate-like structure.
[0009] The first reinforcement portion extends from the middle position of the inner side wall of the annular body toward the insertion space and forms a transverse arrangement.
[0010] The second reinforcement portion extends from the edge of the inner wall of the annular body toward the insertion space and is arranged longitudinally. The second reinforcement portion is fixedly arranged with the first reinforcement portion, and the second reinforcement portion is fixedly arranged with the bottom wall of the annular body.
[0011] The third reinforcement portion is fixedly arranged with the extending ends of the first reinforcement portion and the second reinforcement portion.
[0012] As a further embodiment, an intermediate reinforcement structure is arranged between the pair of reinforcement structures, the intermediate reinforcement structure comprises an intermediate reinforcement plate, the intermediate reinforcement plate extends obliquely from the edge of the bottom wall of the annular body toward the inside of the insertion space, and the side edge of the intermediate reinforcement plate is fixedly arranged with the side reinforcement structure;
[0013] A plurality of reinforcing blocks arranged at intervals are arranged between the inner surface of the middle reinforcing plate and the inner bottom wall of the annular body, and the reinforcing blocks are respectively fixed to the middle reinforcing plate and the annular body.
[0014] As a further implementation scheme, a support plate with a gradually decreasing width extends from the middle position of the middle reinforcement plate toward the inside of the box cover, and support protrusions are respectively provided on the middle reinforcement plates on both sides of the support plate. The support protrusions have support surfaces, and the support surfaces include an inclined guide surface and a support plane formed continuously with the guide surface, and the height of the support plane exceeds the support plate.
[0015] As a further embodiment, a first concave annular groove is formed downwardly on the outer side of the open edge of the lock box, and a first docking side skirt higher than the first concave annular groove is formed on the inner side of the open edge of the lock box, and a first docking plug block and a first docking slot are fixedly arranged on the first docking side skirt;
[0016] A second concave annular groove is formed on the inner side of the edge of the box cover, and a second docking side skirt is formed on the outer side of the edge of the box cover, which is higher than the second concave annular groove. A second docking plug block and a second docking slot are fixedly arranged on the second docking side skirt.
[0017] The first docking side skirt is matched with the second concave annular groove, and the second docking side skirt is matched with the first concave annular groove;
[0018] The first docking plug-in block is inserted into the second docking slot, and the second docking plug-in block is inserted into the first docking slot.
[0019] As a further embodiment, the button includes a pressing portion close to the outside of the insertion space, and a pushing portion located on one side of the pressing portion and in the lock box;
[0020] The pushing part includes a sliding part sliding in the lock box, and an unlocking part in the sliding part, the unlocking part is fixedly arranged on the inner side of the pressing part, and an arc-shaped reinforcing part with a height gradually increasing from the interpretation part toward the inner side of the pressing part is fixedly arranged on the surface of the unlocking part;
[0021] Slots are respectively provided on both sides of the push portion along the height direction of the push portion, and the slots divide the side of the push portion into a front portion and a rear portion. The thickness of the front portion is kept consistent along the arrangement direction of the slots, and the thickness of the rear portion is kept consistent along the arrangement direction of the slots.
[0022] By adopting the above technical solution, the utility model produces the following technical effects:
[0023] 1. By setting the first, second and third reinforcement parts, the support strength inside the annular body is strengthened, thereby correspondingly improving the strength of the annular body, reducing the risk of damage to the annular body caused by long-term use, and extending the service life of the annular body.
[0024] 2. The strength of the bottom wall of the annular body is further increased by providing an intermediate reinforcing plate.
[0025] 3. When the safety belt lock tongue is inserted into the lock buckle, the lock tongue is guided by the supporting protrusion to reduce the contact area between the annular body and the lock tongue, which is convenient for the insertion of the lock tongue. Through the setting of the supporting plate, the lock tongue can be guided for insertion and also play a supporting role for the lock tongue.
[0026] 4. The first docking side skirt cooperates with the second concave annular groove, the second docking side skirt cooperates with the first concave annular groove, the first docking plug block is inserted into the second docking slot, and the second docking plug block is inserted into the first docking slot, so that the box cover and the lock box can be assembled to ensure the assembly stability between the box cover and the lock box. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic internal cross-sectional view of the utility model;
[0028] Figure 2 It is a structural schematic diagram of the locking assembly in the utility model;
[0029] Figure 3 This is a schematic diagram of the structure of the lock box in the utility model;
[0030] Figure 4 for Figure 3 Schematic diagram of the structure viewed from above;
[0031] Figure 5 It is a structural schematic diagram of the box cover in the utility model;
[0032] Figure 6 It is a structural schematic diagram of the button in the utility model;
[0033] Figure 7 for Figure 6 Schematic diagram of the structure viewed from above;
[0034] In the accompanying drawings, 10, lock box, 11, box cover, 12, button, 13, ring body, 14, insertion space, 15, lock body, 16, lock hook, 17, top contact assembly, 18, sliding member, 19, rotating locking member, 20, spring, 21, lock shaft, 22, locking end, 23, double-headed torsion spring, 24, clamping end, 25, connecting end, 26, first reinforcement part, 27, second reinforcement part, 28, third reinforcement part, 29, middle reinforcement plate, 30, reinforcement Strengthening block, 31, supporting plate, 32, supporting protrusion, 33, docking platform, 34, protrusion, 35, first concave annular groove, 36, first docking side skirt, 37, first docking plug block, 38, first docking slot, 39, second concave annular groove, 40, second docking side skirt, 41, second docking plug block, 42, second docking slot, 43, pressing part, 44, sliding part, 45, unlocking part, 46, arc-shaped reinforcement part, 47, notch, 48, groove. DETAILED DESCRIPTION
[0035] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0036] See also Figure 1-7 The invention shows a car seat belt buckle structure applied to car seat belts, which mainly serves to enhance the strength of the buckle box, and specifically comprises a lock box 10, a box cover 11, a locking assembly, and a button 12. One surface of the lock box 10 is an open mouth, one end of the lock box 10 is an annular body 13, and the inside of the annular body 13 is a rectangular insertion space 14; the box cover 11 is detachably assembled on the lock box 10, and the open mouth on the lock box 10 is formed into a cover, the locking assembly and the button 12 are arranged in the assembly space formed between the box cover 11 and the lock box 10, and the outer end of the button 12 is located in the insertion space 14 in the annular body 13, and is used to operate the button 12 from the outside.
[0037] The locking assembly includes a lock body 15 assembled in the lock box 10, a lock hook 16 rotatably assembled on the lock body 15 at one end, and a top contact assembly 17 slidably assembled on the lock body 15. The top contact assembly 17 includes a sliding member 18 and a rotating locking member 19. The rotating locking member 19 is rotatably assembled on the sliding member 18. A spring 20 is provided between the rotating locking member 19 and the lock hook 16, and a lock shaft 21 inserted into the lock hole on the lock body 15 is formed. The lock shaft 21 is matched with the rotating locking member 19. The front end of the lock hook 16 is a locking end 22 that is matched with the seat belt lock tongue. The locking assembly The action principle is a common technology in the art and will not be described in detail; wherein, a double-headed torsion spring 23 is provided between the lock hook 16 and the lock body 15 to ensure the stability of the lock hook 16 during use. Specifically, a hook portion is formed in the middle part of the double-headed torsion spring, which is hooked on the lock hook 16, and passes from one side of the lock hook 16 to the other side, and the middle part of the double-headed torsion spring 23 is clamped on the lock hook 16, and the end of the double-headed torsion spring 23 can be pressed on the surface of the lock hook 16, and the two ends of the torsion spring are bent and hooked on both sides of the lock body 15 respectively, thereby ensuring that the lock hook 16 has a stable locking ability through the setting of the double-headed torsion spring.
[0038] One end of the box cover 11 is a clamping end 24 clamped with the annular body 13 , and the other end is a connecting end 25 fixedly connected with the lock box 10 via two screw connectors to facilitate assembly and disassembly between the box cover 11 and the lock box 10 .
[0039] A pair of side reinforcement structures are arranged at the two lower corners of the insertion space 14 of the annular body 13, and the side reinforcement structures connect the side walls and the bottom wall in the annular body 13 to enhance the strength of the annular body 13; the side reinforcement structure includes a plate-like structure, an integrally formed first reinforcement part 26, a second reinforcement part 27, and a third reinforcement part 28. The first reinforcement part 26 extends from the middle position of the inner side wall of the annular body 13 toward the insertion space 14 and forms a horizontal arrangement, and the second reinforcement part 27 extends from the edge of the inner side wall of the annular body 13 toward the insertion space 14 and forms a longitudinal arrangement. The second reinforcement part 27 and the first reinforcement part 26 form an intersection, and the intersection is fixedly arranged. The second reinforcement part 27 is fixedly arranged with the bottom wall of the annular body 13, and the third reinforcement part 28 is fixedly arranged with the extended ends of the first reinforcement part 26 and the second reinforcement part 27. Through the arrangement of the first, second, and third reinforcement parts, the support strength inside the annular body 13 is strengthened, thereby correspondingly improving the strength of the annular body 13 and reducing the risk of damage to the annular body 13 caused by long-term use.
[0040] In some implementations, the first reinforcement portion 26 has a certain inclination angle and extends from the inner side of the annular body 13 toward the inner side of the insertion space 14, and the second reinforcement portion 27 also forms a certain inclination angle and extends from the edge of the inner wall toward the inner side of the insertion space 14, so as to extend the position of the reinforcement portion toward the middle position of the width direction of the annular body 13 as much as possible, thereby improving the reinforcement portion's ability to enhance the strength of the annular body 13.
[0041] In some implementations, an intermediate reinforcement structure is provided between a pair of reinforcement structures, and the intermediate reinforcement structure includes an intermediate reinforcement plate 29, which extends obliquely from the edge of the inner bottom wall of the annular body 13 toward the inner side of the insertion space 14, and the side edge portion of the intermediate reinforcement plate 29 is fixedly arranged with the side reinforcement structure to further increase the strength of the bottom wall of the annular body 13.
[0042] In some implementations, a plurality of spaced reinforcement blocks 30 are provided between the inner surface of the middle reinforcement plate 29 and the inner bottom wall of the annular body 13. The reinforcement blocks 30 are respectively fixed to the middle reinforcement plate 29 and the annular body 13 to enhance the strength between the middle reinforcement plate 29 and the bottom wall of the annular body 13. A support plate 31 with a gradually decreasing width extends from the middle position of the middle reinforcement plate 29 toward the inside of the box cover 11. The middle reinforcement plate 29 on both sides of the support plate 31 is provided with support protrusions 32. The support protrusions 32 have support surfaces, which include guide surfaces arranged obliquely and support planes formed continuously with the guide surfaces. The height of the support plane exceeds the support plate 31. When the safety belt lock tongue is inserted into the buckle, the lock tongue enters through the guidance of the guide surface, reducing the contact surface between the middle reinforcement plate 29 of the annular body 13 and the lock tongue, which facilitates the insertion of the lock tongue. The support plate 31 can guide the lock tongue for insertion and also play a supporting role for the lock tongue.
[0043] In some implementations, the snap-on end 24 of the box cover 11 has a docking platform 33. When the box cover 11 and the lock box 10 are assembled in place, the docking platform 33 is located below the support plate 31, providing support for the support plate 31 below, thereby enhancing the supporting capacity of the support plate 31, and at least one protrusion 34 is provided on the outer side of the docking platform 33. During assembly, the protrusion 34 is inserted into the gap between the above-mentioned reinforcement blocks 30 to form a docking connection, thereby achieving the snap connection between the snap-on end 24 of the box cover 11 and the lock box 10.
[0044] In some implementations, a clamping structure is provided between the side of the box cover 11 and the side of the open mouth of the lock box 10 to further increase the assembly stability between the box cover 11 and the lock box 10. Specifically, a first concave annular groove 35 that is recessed downward is formed on the outer side of the edge of the open mouth of the lock box 10, and a first docking side skirt 36 that is higher than the first concave annular groove 35 is formed on the inner side of the edge of the open mouth of the lock box 10. The first docking side skirt 36 is arranged along the edge of the open mouth of the lock box 10, and a first docking plug block 37 and a first docking slot 38 are fixedly provided on the first docking side skirt 36; the first docking plug blocks 37 and the first docking slots 38 are arranged on the docking side skirts on both sides of the open mouth of the lock box 10. Correspondingly, a second concave annular groove 39 that is recessed downward is formed on the inner side of the edge of the box cover 11, and a second docking side skirt 40 that is higher than the second concave annular groove 39 is formed on the outer side of the edge of the box cover 11, and a second docking plug block 41 and a second docking slot 42 are fixedly arranged on the second docking side skirt 40; the first docking side skirt 36 is matched with the second concave annular groove 39, the second docking side skirt 40 is matched with the first concave annular groove 35, the first docking plug block 37 is inserted into the second docking slot 42, and the second docking plug block 41 is inserted into the first docking slot 38, so that the box cover 11 and the lock box 10 can be assembled, thereby ensuring the assembly stability between the box cover 11 and the lock box 10.
[0045] In some implementations, the button 12 includes a pressing portion 43 near the outside of the insertion space 14, and a pushing portion located on one side of the pressing portion 43 and in the lock box 10; the pushing portion includes a sliding portion 44 that slides in the lock box 10, and an unlocking portion 45 in the sliding portion 44, the unlocking portion 45 is fixedly arranged on the inner side of the pressing portion 43, and an arc-shaped reinforcement portion 46 whose height gradually increases from the unlocking portion 45 toward the inner side of the pressing portion 43 is fixedly arranged on the surface of the unlocking portion 45, thereby enhancing the strength between the unlocking portion 45 and the pressing portion 43, and the arc-shaped design of the arc-shaped reinforcement portion 46 can also avoid the obstruction of pressing the button 12 during the operation of the button 12. In addition, a plurality of grooves 48 arranged in sequence are also provided on the back of the unlocking portion 45 to reduce the material used for the unlocking portion 45.
[0046] In some implementations, notches 47 are respectively provided on the two sides of the push portion 43 along the height direction of the push portion 43, and the notches 47 divide the side of the push portion 43 into a front part and a rear part, and the thickness of the front part is kept consistent along the arrangement direction of the notches 47, and the thickness of the rear part is kept consistent along the arrangement direction of the notches 47, so as to ensure the balance of the structure on both sides of the notches 47. Here, by arranging the notches 47, the contact area between the side of the push portion 43 and the inner wall of the annular body 13 is reduced, so that the button 12 is convenient to press, and the material cost of the button 12 can also be reduced accordingly.
[0047] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention to illustrate the technical solution of the present invention, but are not intended to limit the technical solution, let alone the patent scope of the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention. In addition, the direct or indirect application of the technical solution of the present invention in other related technical fields is also included in the patent protection scope of the present invention.
Claims
1. A car seat belt buckle structure, comprising a lock box, a box cover, a locking assembly, and a button, wherein one surface of the lock box is an open opening, one end of the lock box is an annular body, and the annular body is a rectangular insertion space; the box cover can be detachably assembled on the lock box to form a cover for the open opening on the lock box, the locking assembly and the button are arranged in the assembly space formed between the box cover and the lock box, and the outer end of the button is located in the insertion space in the annular body, characterized in that: One end of the box cover is a clamping end that is clamped with the annular body, and the other end is a connecting end that is fixedly connected with the lock box through a connecting piece; a clamping structure is provided between the side of the box cover and the side of the open opening of the lock box; A pair of side reinforcement structures are provided at two lower corners of the insertion space of the annular body, and the side reinforcement structures connect the side wall and the bottom wall of the annular body; The side reinforcement structure includes a first reinforcement part, a second reinforcement part, and a third reinforcement part of a plate-like structure. The first reinforcement portion extends from the middle position of the inner side wall of the annular body toward the insertion space and forms a transverse arrangement. The second reinforcement portion extends from the edge of the inner wall of the annular body toward the insertion space and is arranged longitudinally. The second reinforcement portion is fixedly arranged with the first reinforcement portion, and the second reinforcement portion is fixedly arranged with the bottom wall of the annular body. The third reinforcement portion is fixedly arranged with the extending ends of the first reinforcement portion and the second reinforcement portion.
2. The automobile safety belt buckle structure according to claim 1, characterized in that: An intermediate reinforcement structure is arranged between the pair of reinforcement structures, the intermediate reinforcement structure comprises an intermediate reinforcement plate, the intermediate reinforcement plate extends obliquely from the edge of the bottom wall of the annular body toward the inside of the insertion space, and the side edge of the intermediate reinforcement plate is fixedly arranged with the side reinforcement structure; A plurality of reinforcing blocks arranged at intervals are arranged between the inner surface of the middle reinforcing plate and the inner bottom wall of the annular body, and the reinforcing blocks are respectively fixed to the middle reinforcing plate and the annular body.
3. The automobile safety belt buckle structure according to claim 1, characterized in that: A support plate with a gradually decreasing width extends from the middle position of the middle reinforcement plate toward the inside of the box cover, and support protrusions are respectively arranged on the middle reinforcement plates on both sides of the support plate. The support protrusions have support surfaces, which include inclined guide surfaces and a support plane formed continuously with the guide surface, and the height of the support plane exceeds the support plate.
4. The automobile safety belt buckle structure according to claim 1, characterized in that: A first concave annular groove is formed on the outer side of the open edge of the lock box, and a first docking side skirt is formed on the inner side of the open edge of the lock box, which is higher than the first concave annular groove. A first docking plug block and a first docking slot are fixedly arranged on the first docking side skirt. A second concave annular groove is formed on the inner side of the edge of the box cover, and a second docking side skirt is formed on the outer side of the edge of the box cover, which is higher than the second concave annular groove. A second docking plug block and a second docking slot are fixedly arranged on the second docking side skirt. The first docking side skirt is matched with the second concave annular groove, and the second docking side skirt is matched with the first concave annular groove; The first docking plug-in block is inserted into the second docking slot, and the second docking plug-in block is inserted into the first docking slot.
5. The automobile safety belt buckle structure according to claim 1, characterized in that: The button includes a pressing portion close to the outside of the insertion space, and a pushing portion located at one side of the pressing portion and inside the lock box; The pushing part includes a sliding part sliding in the lock box, and an unlocking part in the sliding part, the unlocking part is fixedly arranged on the inner side of the pressing part, and an arc-shaped reinforcing part with a height gradually increasing from the interpretation part toward the inner side of the pressing part is fixedly arranged on the surface of the unlocking part; Slots are respectively provided on both sides of the push portion along the height direction of the push portion, and the slots divide the side of the push portion into a front portion and a rear portion. The thickness of the front portion is kept consistent along the arrangement direction of the slots, and the thickness of the rear portion is kept consistent along the arrangement direction of the slots.