CN112056708A

CN112056708A - Locking block and safety belt lock catch

Info

Publication number: CN112056708A
Application number: CN202010877274.4A
Authority: CN
Inventors: 吴佳楠; 戴双虎
Original assignee: Zhejiang Songyuan Automotive Safety Systems Co ltd
Current assignee: Zhejiang Songyuan Automotive Safety Systems Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2020-12-11

Abstract

The application discloses locking piece includes: the locking device comprises a locking block body, a switching shaft, a driving piece and a limiting arm with a limiting groove; the limiting groove is formed on an extension surface of the limiting arm with radian, and is provided with a first limiting wall and a second limiting wall which are non-mirror images and are connected with each other for limiting the freedom degrees of a bolt shaft in the safety belt buckle in two different directions in the limiting groove. The utility model provides a spacing recess forms on the extending face that has the radian of spacing arm, and sets up to the non-mirror image structure through with first spacing wall and the spacing wall of second, and it not only can play limiting displacement to the bolt axle through the structure of simplifying, can also reduce the shared space that has of locking piece, reduces the cost of manufacturing the locking piece. And the volume based on the spacing wall of second is less to when the locking piece was installed in the safety belt hasp, reduced the space that the locking piece occupied in the safety belt hasp again, also the reverse space that other spare parts can occupy in the safety belt hasp that has increased simultaneously.

Description

Locking block and safety belt lock catch

Technical Field

The application relates to the technical field of automobile equipment, in particular to a locking block and a safety belt lock catch.

Background

With the popularization of automobiles, the safety of automobiles becomes a concern for users. The safety of the safety belt can be well guaranteed by the conventional safety belt lock catch. Generally, when a seat belt is worn, after an occupant sits on a seat and pulls the seat belt so that the seat belt is looped around the body of the occupant, the seat belt is inserted into a buckle device located on the opposite side of a mounting portion of the seat belt and fixed so that the seat belt is not unfastened. When the safety belt is unfastened, the release button of the lock catch is pressed.

The lock catch is internally provided with a locking block which plays a role of a weight for the release button so as to prevent the release button from sliding due to inertia. But the structure of current locking piece is comparatively complicated, and it is great to occupy the space, just so makes the inner space of safety belt hasp further compressed, has also increased the cost of manufacturing the coiler simultaneously.

Therefore, how to reduce the cost of manufacturing the lock block and simplify the complexity of the lock block without affecting the internal space of the seat belt buckle becomes a problem to be solved by those skilled in the art.

Disclosure of Invention

The embodiment of the application provides a locking piece to solve among the prior art under the prerequisite that does not influence the inner space of safety belt hasp, reduce the cost of making the locking piece, and simplify the problem of the complexity of locking piece.

The embodiment of the application provides a locking piece, sets up in the safety belt buckle, includes: the locking device comprises a locking block body, a transfer shaft, a driving piece and at least one limiting arm, wherein the transfer shaft is arranged on the locking block body and used for supporting the locking block body to rotate;

the limiting groove is formed in an extension surface of the limiting arm, the extension surface of the limiting arm has a radian, the limiting groove is provided with a first limiting wall and a second limiting wall which are non-mirror images and are connected with each other, and the first limiting wall and the second limiting wall are used for limiting the degrees of freedom of a bolt shaft in the safety belt buckle in two different directions in the limiting groove.

Optionally, the limiting groove is formed on an extension surface of the limiting arm with a radian, and the limiting groove is provided with a first limiting wall and a second limiting wall which are non-mirror images and connected with each other, specifically:

the limiting groove is formed in the extending tail end of the extending surface with the radian of the limiting arm, the inner side wall surface of the first limiting wall is a part of the extending surface positioned at the extending tail end, and the extending direction of the plane where the first limiting wall is positioned is perpendicular to the first direction;

the inner side wall surface of the second limiting wall is a part of extension surface close to the locking block body, and the extension direction of the plane where the second limiting wall is located is not perpendicular to the first direction, so that the second limiting wall is arranged in a non-mirror image form with the first limiting wall.

Optionally, the second limiting wall is configured to be non-mirror image of the first limiting wall, and includes: the second limiting wall is set to be smooth and has a radian shape.

Optionally, the second limiting wall is set to be smooth and has a shape of a radian, and includes: the second limiting wall forms an inclined slope from the beginning of the groove bottom of the limiting groove, so that an included angle of 0-60 degrees is formed between the plane where the second limiting wall is located and the plane where the first direction is located.

Optionally, the limiting groove is formed on a side surface of the limiting arm, which is close to one side of the adapter shaft, and the extending surface of the limiting arm has a radian.

Optionally, the at least one limiting arm extending along the first direction and having a limiting groove includes: the number of the limiting arms with the limiting grooves, which are arranged on the locking block body, is two, and the two limiting arms are sequentially arranged on the locking block body along the second direction.

Optionally, the method further includes: the special-shaped reinforcing ribs extend along the first direction, are additionally arranged on the side wall of the outer side of the limiting arm and are connected with the locking block body.

Optionally, the method further includes: and the transition curved surface is formed between the two limiting arms and is used for improving the strength of the limiting arms.

The embodiment of the application still provides a safety belt hasp, be in including safety belt hasp body and setting locking piece on the safety belt hasp body, the locking piece includes: the locking device comprises a locking block body, a transfer shaft, a driving piece and at least one limiting arm, wherein the transfer shaft is arranged on the locking block body and used for supporting the locking block body to rotate;

Compared with the prior art, the embodiment of the application has the following advantages:

the embodiment of the application provides a locking piece, sets up in the safety belt buckle, includes: the locking device comprises a locking block body, a transfer shaft, a driving piece and at least one limiting arm, wherein the transfer shaft is arranged on the locking block body and used for supporting the locking block body to rotate; the limiting groove is formed in an extension surface of the limiting arm, the extension surface of the limiting arm has a radian, the limiting groove is provided with a first limiting wall and a second limiting wall which are non-mirror images and are connected with each other, and the first limiting wall and the second limiting wall are used for limiting the degrees of freedom of a bolt shaft in the safety belt buckle in two different directions in the limiting groove. The spacing recess of this application embodiment is formed in spacing arm has on the extension face of radian, and sets up to non-mirror image structure through with first spacing wall and the spacing wall of second, and it not only can play limiting displacement to the bolt axle through the structure of simplifying, can also reduce the shared space of locking piece to and reduced the cost of making the locking piece. And the volume based on the spacing wall of second is less to when the locking piece was installed in the safety belt hasp, reduced the space that the locking piece occupied in the safety belt hasp again, also the reverse space that other spare parts can occupy in the safety belt hasp that has increased simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of a locking block according to a first embodiment of the present application.

Fig. 2 is a schematic structural diagram of another angle locking block according to the first embodiment of the present application.

Fig. 3 is a schematic structural diagram of a seat belt buckle according to a second embodiment of the present application.

Reference numerals: the locking block comprises a locking block 100, a locking block body 1, a switching shaft 2, a driving piece 3, a driving rod 31, a connecting body 32, a limiting arm 4, a limiting groove 5, a first limiting wall 51, a second limiting wall 52, a groove bottom 53, an extension surface 6, a special-shaped reinforcing rib 7, an outer side wall 54 and a transition curved surface 8.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import by those skilled in the art without departing from the spirit of this application and is therefore not limited to the specific implementations disclosed below.

A first embodiment of the present application provides a locking block 100, and fig. 1 is a schematic structural diagram of the locking block 100 according to the first embodiment of the present application.

Referring to fig. 1 and 2, a locking block 100 according to a first embodiment of the present application is provided, where the locking block 100 is disposed in a seat belt buckle and is used to cooperate with a release button 24 (shown in fig. 3) in the seat belt buckle to lock and unlock the seat belt buckle.

Specifically, the locking block 100 provided in the first embodiment of the present application includes: the locking device comprises a locking block body 1, an adapter shaft 2 which is arranged on the locking block body 1 and used for supporting the locking block body 1 to rotate, a driving piece 3 used for driving the locking block body 1 to rotate, and at least one limiting arm 4 which extends along a first direction and is provided with a limiting groove 5. In the first embodiment of the present application, the locking block body 1, the adapter shaft 2, the driving member 3, and the limiting arm 4 are integrally formed.

In the first embodiment of the present application, the longitudinal section of the main part of the locking dog body 1 is approximately fan-shaped, the adapter shaft 2 is located at the "vertex" position of the fan shape, the driving member 3 is connected with the "vertex" position, and the limit arm 4 is arranged at the "side" position of the fan shape, and is specifically located at the "right side" of the fan shape. Specifically, referring to fig. 1, fig. 1 marks a first direction and a second direction (indicated by arrows), wherein the first direction is a direction inclined perpendicular to the plane of fig. 1, and the second direction is a direction pointing to the lower right corner in fig. 1. The switching shaft 2 is arranged on two sides of the locking block body 1 along the second direction, and the direction of the axis of the switching shaft 2 is the same as the second direction. The transfer shaft 2 can be abutted against a support hole on a lock body in the safety belt lock catch, and the lock block body 1 is supported on the lock body by means of the support hole and can rotate through the support hole.

In the first embodiment of the present application, the driving member 3 is disposed at a position close to the adapting shaft 2, the driving member 3 includes an integrally formed driving rod 31 and a connecting body 32, one end of the connecting body 32 is connected to the locking block body 1, the other end is connected to the driving rod 31, and the driving rod 31 is integrally a cylinder, and the axial direction of the driving rod is the same as the second direction. And the longitudinal section of the drive rod 31 is semicircular so that the drive rod 31 is provided with a horizontal plane over the entire circumferential end surface. The purpose of arranging the driving rod 31 as an irregular cylinder is to realize the mutual rotation of the contact position of the circumferential end surface of the driving rod 31 of the irregular cylinder and the release button 24 when the driving rod 31 is in contact with the release button 24 in the safety belt buckle, and the horizontal plane can be clamped with the structure on the release button 24, so that the driving rod 31 can be driven to rotate by providing friction force through the horizontal plane.

In the first embodiment of the present application, the position limiting arm 4 is extended along the first direction, and the position limiting groove 5 is provided on the position limiting arm 4, and the position limiting groove 5 can be engaged with the bolt shaft 25 in the buckle of the safety belt, so as to limit the bolt shaft 25. Specifically, the stopper groove 5 is formed on an extension surface 6 of the stopper arm 4 having a curvature, the extension surface 6 being a side surface on a side close to the spindle 2. Wherein the limiting groove 5 has a first limiting wall 51 and a second limiting wall 52 which are non-mirror images and are connected to each other, the first limiting wall 51 and the second limiting wall 52 being used to define two different directional degrees of freedom of the bolt shaft 25 in the belt buckle in the limiting groove 5. As can be seen from the figure 1, the first limiting wall 51 serves to limit the degrees of freedom of the bolt shaft 25 towards the right, and the second limiting wall 52 serves to limit the degrees of freedom of the bolt shaft 25 towards the left.

Further, in the first embodiment of the present application, since the check arm 4 is extended in the first direction, the extension surface 6 of the check arm 4 is also extended in the first direction. The limiting groove 5 is formed at the extending end of the extending surface 6 with the radian of the limiting arm 4, wherein the inner side wall surface of the first limiting wall 51 is a part of the extending surface 6 positioned at the extending end, the extending direction of the plane where the first limiting wall 51 is positioned is perpendicular to the first direction, or the extending direction of the plane where the first limiting wall 51 is positioned is approximately perpendicular to the first direction, or the extending direction of the plane where the first limiting wall 51 is positioned and a straight line where the first direction is positioned form an obtuse angle, and the obtuse angle range is greater than 90 degrees and less than or equal to 135 degrees.

The inner side wall surface of the second limiting wall 52 is a part of the extension surface 6 close to the locking block body 1, and the extension direction of the plane where the second limiting wall 52 is located is not perpendicular to the first direction, so that the second limiting wall 52 is arranged in a non-mirror image form with the first limiting wall 51. The second limiting wall 52 is configured to be non-mirror image of the first limiting wall 51, specifically, the second limiting wall 52 is configured to be smooth and have a radian, and further, the second limiting wall 52 forms an inclined slope from the bottom 53 of the limiting groove 5, so that an included angle between the plane where the second limiting wall 52 is located and the plane where the first direction is located is in a range of 0 to 60 degrees. In the embodiment of the present application, the second stopper wall 52 is provided in a smooth and curved (non-convex) form, which not only can serve to limit the position of the bolt shaft 25 by a simplified structure, but also can reduce the space occupied by the lock block 100 and reduce the cost for manufacturing the lock block 100. And because the volume of second spacing wall 52 is less to when the locking piece 100 is installed in the safety belt buckle, reduced the space that the locking piece 100 occupied in the safety belt buckle again, also the reverse space that other spare parts can occupy in the safety belt buckle that has increased simultaneously.

In the first embodiment of the present application, the number of the limiting arms 4 is two, and the two limiting arms 4 are sequentially arranged on the locking block body 1 along the second direction. The advantage of setting up two spacing arms 4 is that it not only can reduce the cost of the used material of production spacing arm 4, can also further realize that spacing arm 4 is spacing to the stability of bolt axle 25. Moreover, the width of each limiting arm 4 in the second direction is relatively narrow, and the gap between the two limiting arms 4 can be used for the layout of other parts, so that the cost of materials used for producing the limiting arms 4 can be reduced, the space provided by the locking block 100 can be reasonably utilized, and the occupied volume and space of the safety belt lock catch can be reduced.

In the first embodiment of the present application, the method further includes: and the special-shaped reinforcing ribs 7 extend along the first direction, are additionally arranged on the side wall 54 at the outer side of the limiting arm 4 and are connected with the locking block body 1. On the premise of not increasing the volume of the limiting arm 4, the special-shaped reinforcing ribs 7 are used for improving the strength of the limiting arm 4, namely, when the bolt shaft 25 is limited, the limiting arm 4 cannot be damaged by the acting force provided by the bolt shaft 25.

In the first embodiment of the present application, the method further includes: transition curved surface 8, transition curved surface 8 forms between two spacing arms 4 for further promote the intensity of spacing arm 4.

The first embodiment of the present application provides a locking block 100, provided in a seat belt buckle, including: the locking device comprises a locking block body 1, an adapter shaft 2, a driving piece 3 and at least one limiting arm 4, wherein the adapter shaft 2 is arranged on the locking block body 1 and used for supporting the locking block body 1 to rotate, the driving piece 3 is used for driving the locking block body 1 to rotate, and the limiting arm 4 extends along a first direction and is provided with a limiting groove 5; the stop recess 5 is formed on an extension surface 6 with an arc of the stop arm 4, and the stop recess 5 has a first stop wall 51 and a second stop wall 52 which are non-mirror images and are connected to each other, the first stop wall 51 and the second stop wall 52 serving to define two different directional degrees of freedom of the bolt shaft 25 in the safety belt buckle in the stop recess 5. The limiting groove 5 of the first embodiment of the present application is formed on the extending surface 6 with radian of the limiting arm 4, and by setting the first limiting wall 51 and the second limiting wall 52 to be non-mirror structures, it not only can play a limiting role to the bolt shaft 25 through a simplified structure, but also can reduce the space occupied by the locking block 100, and reduce the cost for manufacturing the locking block 100. And because the volume of second spacing wall 52 is less to when the locking piece 100 is installed in the safety belt buckle, reduced the space that the locking piece 100 occupied in the safety belt buckle again, also the reverse space that other spare parts can occupy in the safety belt buckle that has increased simultaneously.

The second embodiment of the present application provides a seatbelt buckle 200, as shown in fig. 3, the seatbelt buckle 200 includes a seatbelt buckle body and a lock block 100 disposed on the seatbelt buckle body, where the lock block 100 includes: the locking device comprises a locking block body 1, an adapter shaft 2, a driving piece 3 and at least one limiting arm 4, wherein the adapter shaft 2 is arranged on the locking block body 1 and used for supporting the locking block body 1 to rotate, the driving piece 3 is used for driving the locking block body 1 to rotate, and the limiting arm 4 extends along a first direction and is provided with a limiting groove 5; the arresting recess 5 is formed on an extension surface 6 of the arresting arm 4 having an arc, and the arresting recess 5 has a first arresting wall 51 and a second arresting wall 52 which are non-mirror images and are connected to each other, the first arresting wall 51 and the second arresting wall 52 serving to define two different directional degrees of freedom of a bolt shaft 25 in the seat belt buckle in the arresting recess 5.

Based on the structure of the locking block 100 provided by the first embodiment, the specific structure can be set up as described in the first embodiment, and repeated description is omitted here.

Further, the present application provides a seatbelt buckle 200 according to a second embodiment, further comprising: a housing 20, a lock body 21 disposed in the housing 20, an ejector block 22 and a spring 23 disposed on the lock body 21.

Although the present application has been described with reference to the preferred embodiments, it is not intended to limit the present application, and those skilled in the art can make variations and modifications without departing from the spirit and scope of the present application, therefore, the scope of the present application should be determined by the claims that follow.

Claims

1. A lockout block, disposed in a seat belt buckle, comprising: the locking device comprises a locking block body, a transfer shaft, a driving piece and at least one limiting arm, wherein the transfer shaft is arranged on the locking block body and used for supporting the locking block body to rotate; it is characterized in that the preparation method is characterized in that,

2. The locking block of claim 1, wherein the retaining groove is formed in an arcuate extension of the retaining arm, and the retaining groove has first and second non-mirror interconnecting retaining walls, in particular:

3. The lockout block of claim 2, wherein the second limiting wall is provided in a non-mirror image configuration with the first limiting wall, comprising: the second limiting wall is set to be smooth and has a radian shape.

4. The latch block of claim 3 wherein the second limiting wall is configured to be smooth and have a curved configuration comprising: the second limiting wall forms an inclined slope from the beginning of the groove bottom of the limiting groove, so that an included angle of 0-60 degrees is formed between the plane where the second limiting wall is located and the plane where the first direction is located.

5. The lock block of any of claims 1-4, wherein the detent recess is formed in the curved extension of the detent arm as the side adjacent the side of the spindle.

6. The lockout block of claim 5, wherein the at least one position limiting arm having a position limiting recess extending in a first direction comprises: the number of the limiting arms with the limiting grooves, which are arranged on the locking block body, is two, and the two limiting arms are sequentially arranged on the locking block body along the second direction.

7. The lockout block of claim 6, further comprising: the special-shaped reinforcing ribs extend along the first direction, are additionally arranged on the side wall of the outer side of the limiting arm and are connected with the locking block body.

8. The lockout block of claim 6, further comprising: and the transition curved surface is formed between the two limiting arms and is used for improving the strength of the limiting arms.

9. The utility model provides a safety belt hasp which characterized in that, includes the safety belt hasp body and sets up locking piece on the safety belt hasp body, the locking piece includes: the locking device comprises a locking block body, a transfer shaft, a driving piece and at least one limiting arm, wherein the transfer shaft is arranged on the locking block body and used for supporting the locking block body to rotate;