Connecting device and safety belt assembly

Abstract

The embodiment of the utility model provides a connecting device and a safety belt assembly, the connecting device comprises a first connecting piece and a second connecting piece, the first connecting piece comprises a base plate, a bias device and two locking blocks, the bias device is installed on the base plate, the two locking blocks are rotatably installed on the base plate through two pivotal shafts respectively, and the first connecting piece and the second connecting piece are arranged on the base plate. The bias device pushes the two locking blocks to move in the direction away from the bias device, so that the two locking blocks are located at first positions at least partially extending to the exteriors of the two transverse sides of the base plate. The second connecting piece comprises a riveting piece, the vertical edge of the riveting piece is folded in the direction perpendicular to the riveting piece to form two guide rails, and positioning grooves are formed in the two guide rails. During connection, the base plate is inserted between the two guide rails on the riveting piece, the guide rails press the locking blocks to move from the first position to the second position, and when the base plate is inserted into the designated position, at least part of the two locking blocks are inserted into the positioning grooves in the guide rails under the action of the bias device, so that one-way locking is achieved, and the locking blocks cannot be pulled out any more.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile safety belts, and in particular to a connecting device and a safety belt assembly. Background Art

[0002] The lumbar pretensioner quick-insert device is used to connect the webbing to the lumbar pretensioner, and plays a role in restraining the occupants when the vehicle is driving. The lumbar pretensioner installed on the B-pillar sheet metal can be directly sewn with the seat belt webbing, but for the lumbar pretensioner installed on the seat, the lumbar pretensioner needs to be installed on the seat first, and then installed in the vehicle after the lumbar pretensioner and the seat belt are installed. In this way, the lumbar pretensioner and the seat belt need to be supplied and installed separately, and the lumbar pretensioner is connected to the seat belt after loading. At present, the requirements for installing the lumbar pretensioner on the seat first are gradually increasing, and a simple and quick connection device is particularly important. The existing connection between the lumbar pretensioner and the seat belt is generally complex in structure and needs to be fixed with bolts, which is inefficient and inconvenient to install. Summary of the invention

[0003] In view of this, the embodiments of the present specification provide a connecting device and a seat belt assembly. When connection is required, the base plate is inserted between the two guide rails on the rivet plate of the second connecting member. The guide rails press the locking block to move from the first position to the second position. When the base plate is inserted to the specified position, the two locking blocks are at least partially inserted into the positioning grooves on the guide rails under the action of the biasing device, realizing one-way locking and preventing them from being pulled out, thereby ensuring the connection effect between the first connecting member and the second connecting member.

[0004] The embodiments of this specification provide the following technical solutions: a connecting device, comprising a first connecting member and a second connecting member, wherein the first connecting member is at least partially inserted into the second connecting member for locking,

[0005] The first connecting member comprises a base plate, a biasing device and two locking blocks, wherein the biasing device is mounted on the base plate, and the two locking blocks are rotatably mounted on the base plate through two pivot shafts, respectively, so that the locking blocks can move between a first position and a second position, and the biasing device pushes the two locking blocks to move in a direction away from the biasing device, so that the two locking blocks are both in a first position at least partially extending to the outside of the lateral sides of the base plate;

[0006] The second connecting member comprises a rivet plate, the vertical side of which is folded along a direction perpendicular to the rivet plate to form two guide rails, and positioning grooves are provided on the two guide rails;

[0007] When the substrate is inserted between the two guide rails, the guide rails press the locking block to move from the first position to the second position, and when the substrate is inserted into the specified position, the biasing device spring pushes the two locking blocks to move from the second position to the first position, so that the two locking blocks are at least partially inserted into the corresponding positioning grooves.

[0008] Preferably, the biasing device is a reset spring piece in the shape of a U-shaped element, the horizontal side of the reset spring piece is fixed on the substrate, the ends of the two vertical sides of the reset spring piece are respectively in contact with the two locking blocks, and the two locking blocks are provided with accommodating grooves, and the ends of the two vertical sides of the reset spring piece are respectively extended into the two accommodating grooves.

[0009] Preferably, the first connecting member also includes a fixing block, which includes a baffle and a convex plate perpendicular to the baffle, the baffle is installed on the substrate through a positioning pin, the convex plate extends to the outside of the longitudinal edge of the substrate, and the lateral edge of the reset spring is accommodated in the space between the baffle and the substrate and between the convex plate and the positioning pin.

[0010] Preferably, the first connecting member further comprises a cushion block, the cushion block is fixedly mounted on the base plate, the cushion block is arranged between the two locking blocks, and when the locking block is in the first position, the two locking blocks respectively abut against opposite sides of the cushion block.

[0011] Preferably, a first limit strip and a second limit strip are provided on both sides of the end surface of the substrate close to the locking block, the first limit strip limits the lateral expansion range of the biasing device, and the second limit strip limits the rotation range of the locking block.

[0012] Preferably, the positioning groove is a through groove formed on the guide rail, and when the locking block is in the first position, the locking block at least partially passes through the through groove.

[0013] Preferably, the two guide rails are folded along a direction parallel to the rivet sheet and close to each other to form a limit plate, so as to limit the movement of the substrate in a direction away from the rivet sheet.

[0014] A safety belt assembly comprises a webbing, a steel wire rope, a waist pretensioner and a connecting device as described in any one of the above, wherein the webbing is connected to the first connecting member, and the waist pretensioner is connected to the second connecting member through the steel wire rope.

[0015] Compared with the prior art, the beneficial effects that can be achieved by at least one of the above technical solutions adopted in the embodiments of this specification include at least:

[0016] By installing two rotatable locking blocks on the base plate of the first connecting member, the biasing device pushes the two locking blocks to be in a first position that at least partially extends to the outside of the two lateral sides of the base plate. When connection is required, the base plate is inserted between the two guide rails on the rivet plate of the second connecting member, and the guide rails press the locking blocks to move from the first position to the second position. When the base plate is inserted into the specified position, the two locking blocks move to the first position under the action of the biasing device, and the two locking blocks are at least partially inserted into the positioning grooves on the guide rails, realizing one-way locking and can no longer be pulled out, thereby ensuring the connection effect of the first connecting member and the second connecting member. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is a schematic diagram of the exploded structure of the connection device provided by the present application;

[0019] Figure 2 is a structural schematic diagram of a first connecting member of a connecting device provided in the present application;

[0020] Figure 3 is a cross-sectional view of the connection device provided by the present application after connection;

[0021] Figure 4 is a schematic diagram of the structure of the safety belt assembly provided by the present application when it is not connected;

[0022] Figure 5 It is a schematic diagram of the structure of the safety belt assembly provided by the present application after being connected.

[0023] In the figure, 1, base plate; 2, biasing device; 3, locking block; 4, pivot shaft; 5, rivet plate; 6, guide rail; 7, positioning groove; 8, fixing block; 81, baffle plate; 82, convex plate; 9, cushion block; 10, accommodating groove; 11, limiting plate; 12, first limiting strip; 13, second limiting strip; 100, first connecting member; 200, second connecting member; 300, webbing; 400, wire rope; 500, waist pretensioner. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0025] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0026] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0027] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0028] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0029] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0030] like Figure 1-Figure 3 As shown, a connecting device includes a first connecting member 100 and a second connecting member 200, wherein the first connecting member 100 is at least partially inserted into the second connecting member 200 for locking, including:

[0031] The first connecting member 100 comprises a base plate 1, a biasing device 2 and two locking blocks 3, wherein the biasing device 2 is mounted on the base plate 1, and the two locking blocks 3 are rotatably mounted on the base plate 1 through two pivot shafts 4, respectively, so that the locking blocks 3 can move between a first position and a second position, and the biasing device 2 pushes the two locking blocks 3 to move away from the biasing device 2, so that the two locking blocks 3 are both in a first position at least partially extending to the outside of the two lateral sides of the base plate 1;

[0032] The second connecting member 200 includes a rivet plate 5, the vertical side of which is folded along a direction perpendicular to the rivet plate 5 to form two guide rails 6, and positioning grooves 7 are provided on the two guide rails 6;

[0033] When the substrate 1 is inserted between the two guide rails 6, the guide rails 6 press the locking block 3 to move from the first position to the second position. When the substrate 1 is inserted to the specified position, the biasing device 2 spring pushes the two locking blocks 3 to move from the second position to the first position, so that the two locking blocks 3 are at least partially inserted into the corresponding positioning grooves 7.

[0034] By setting the first connecting member 100 and the second connecting member 200, when the first connecting member 100 is inserted into the specified position in the second connecting member 200, the first connecting member 100 and the second connecting member 200 are locked. By installing two rotatable locking blocks 3 on the base plate 1 of the first connecting member 100, the locking blocks 3 can rotate between the first position and the second position. When the locking blocks 3 are in the first position, the locking blocks 3 at least partially extend to the outside of the two lateral sides of the base plate 1. When the locking blocks 3 are in the second position, the locking blocks 3 do not exceed the outside of the two lateral sides of the base plate 1. In a normal state, under the action of the biasing device 2, the locking blocks 3 are in the first position. When When the first connecting member 100 and the second connecting member 200 need to be connected, the first connecting member 100 is inserted between the two guide rails 6, and the guide rails 6 press the locking block 3 to move from the first position to the second position. When the first connecting member 100 is inserted into the specified position, the locking block 3 moves to the position corresponding to the positioning groove 7. Under the action of the biasing device 2, the locking block 3 rotates from the second position to the first position, and the locking block 3 is at least partially inserted into the corresponding positioning groove 7, completing the rapid locking between the first connecting member 100 and the second connecting member 200, realizing one-way locking and preventing it from being pulled out, thereby ensuring the connection effect of the first connecting member 100 and the second connecting member 200.

[0035] It should be noted that the width of the substrate 1 is slightly smaller than the distance between the two guide rails 6, so that the substrate 1 can be conveniently inserted between the two guide rails 6. When the two locking blocks 3 are in the first position, the distance between the outermost sides of the two locking blocks 3 is greater than the distance between the two guide rails 6, so as to ensure that the two locking blocks 3 can be respectively inserted into the positioning grooves 7 opened on the two pairs.

[0036] It should also be noted that the locking block 3 can be rotatably mounted on the substrate 1 through a rivet, or can be rotatably mounted on the substrate 1 through other rod-shaped objects such as a pin shaft, and can be selected according to the actual situation.

[0037] As Figure 1-Figure 3 shown, in some embodiments, the biasing device 2 is a U-shaped reset spring piece. The horizontal side of the reset spring piece is fixed on the substrate 1. The end parts of the two vertical sides of the reset spring piece are respectively in contact with the two locking blocks 3. Accommodation grooves 10 are formed on both of the two locking blocks 3. The end parts of the two vertical sides of the reset spring piece respectively extend into the two accommodation grooves 10. By providing a U-shaped reset spring piece, the horizontal side of the reset spring piece is fixed on the substrate 1 to prevent the reset spring piece from separating from the substrate 1. The end parts of the two vertical sides of the reset spring piece are respectively in contact with the two locking blocks 3. The two vertical sides of the reset spring piece have an elastic force to expand outwards, thereby pushing the two locking blocks 3 to rotate so that the locking blocks 3 are in the first position. At the same time, accommodation grooves 10 corresponding to the end parts of the vertical sides of the reset spring piece are formed on the locking blocks 3, and the end parts of the vertical sides of the reset spring piece are inserted into the accommodation grooves 10 to ensure the pushing effect of the reset spring piece on the locking blocks 3.

[0038] It should be noted that in other embodiments, the biasing device 2 can also be other elastic members, such as a spring. The two ends of the spring are respectively connected to the two locking blocks 3, and the spring pushes the locking blocks 3 to be in the first position.

[0039] As Figure 1-Figure 3As shown, in some embodiments, the first connecting member 100 also includes a fixing block 8, the fixing block 8 includes a baffle 81 and a convex plate 82 perpendicular to the baffle 81, the baffle 81 is installed on the substrate 1 through a positioning pin, the convex plate 82 extends to the outside of the longitudinal edge of the substrate 1, the lateral edge of the reset spring is accommodated in the space between the baffle 81 and the substrate 1 and between the convex plate 82 and the positioning pin, and the lateral edge of the reset spring is fixed to the substrate 1 by setting the fixing block 8, the fixing block 8 includes an integrally formed baffle 81 and a convex plate 82, the baffle 81 and the convex plate 82 are perpendicular to each other, the baffle 81 is installed on the substrate 1 through a positioning pin, the convex plate 82 is located outside the longitudinal edge of the substrate 1, the baffle 81 can prevent the reset spring from moving in a direction away from the substrate 1, the baffle 81 has ribs on both lateral edges, the ribs can prevent the reset spring from moving in the lateral direction of the substrate 1, and the convex plate 82 and the positioning pin can prevent the reset spring from moving in the longitudinal direction of the substrate 1.

[0040] It should be noted that in other embodiments, the fixing block 8 can also adopt a structure similar to a U-shaped bracket to fix the horizontal side of the reset spring on the base plate 1, and the two vertical sides of the U-shaped bracket are respectively located on both sides of the horizontal side of the reset spring, which can be set according to actual conditions.

[0041] like Figure 1-Figure 3 As shown, in some embodiments, the first connecting member 100 also includes a cushion block 9, which is fixedly mounted on the substrate 1, and the cushion block 9 is arranged between the two locking blocks 3. When the locking block 3 is in the first position, the two locking blocks 3 are respectively abutted against the opposite sides of the cushion block 9. By arranging the cushion block 9 between the two locking blocks 3, the cushion block 9 is fixedly mounted on the substrate 1, and when the biasing device 2 pushes the locking block 3 to move to the first position, the upper outer sides of the two locking blocks 3 extend to the outside of the lateral sides of the substrate 1 respectively, and the lower inner sides of the two locking blocks 3 are respectively in contact with the opposite sides of the cushion block 9. The cushion block 9 can play a role of limiting, ensuring that the locking block 3 rotates within a suitable angle range.

[0042] like Figure 1-Figure 3As shown, in some embodiments, a first limit strip 12 and a second limit strip 13 are provided on both sides of the end surface of the substrate 1 close to the locking block 3. The first limit strip 12 limits the lateral expansion range of the biasing device 2, and the second limit strip 13 limits the rotation range of the locking block 3. By providing the first limit strip 12 on both sides of the upper part of the front end surface of the substrate 1, the inner sides of the two groups of first limit strips 12 are respectively in contact with the two vertical sides of the biasing device 2, thereby limiting the lateral expansion range of the biasing device 2. By providing the second limit strip 13 on both sides of the lower part of the front end surface of the substrate 1, when the locking block 3 is in the first position, the locking block 3 is in contact with the second limit strip 13, and the second limit strip 13 can play a limiting role to ensure that the locking block 3 rotates within a suitable angle range.

[0043] like Figure 2-Figure 3 As shown, in some embodiments, the positioning groove 7 is a through groove opened on the guide rail 6, and when the locking block 3 is in the first position, the locking block 3 at least partially passes through the through groove. By setting the positioning groove 7 as a through groove, the locking block 3 at least partially passes through the through groove when in the first position, and the through groove limits the locking block 3 along the length direction of the substrate 1, thereby ensuring the connection effect of the first connecting member 100 and the second connecting member 200.

[0044] It should be noted that, in other embodiments, the positioning slot 7 may also be a groove, as long as the locking block 3 can be inserted into the groove.

[0045] like Figure 1 As shown, in some embodiments, the two guide rails 6 are folded along a direction parallel to the rivet plate 5 and close to each other to form a limit plate 11 to limit the movement of the substrate 1 in a direction away from the rivet plate 5. The limit plate 11 is formed by folding the end of the guide rail 6 inward. When the substrate 1 is inserted between the two guide rails 6, the limit plate 11 can play a limiting role to prevent the substrate 1 from moving in a direction away from the rivet plate 5, thereby ensuring that the substrate 1 moves along the guide rail 6.

[0046] like Figure 1-Figure 5 As shown, based on the same inventive concept, an embodiment of the present specification provides a safety belt assembly, including a webbing 300, a steel wire rope 400, a waist pretensioner 500 and a connecting device as described in any one of the above, the webbing 300 is connected to the first connecting member 100, and the waist pretensioner 500 is connected to the second connecting member 200 through the steel wire rope 400.

[0047] like Figure 4-Figure 5As shown, in practice, by using the above-mentioned connecting device to connect the webbing 300 and the waist pretensioner 500, it is only necessary to connect the webbing 300 and the first connecting member 100, connect the waist pretensioner 500 and the second connecting member 200 through the wire rope 400, and then insert the first connecting member 100 into the second connecting member 200 to achieve the connection between the webbing 300 and the waist pretensioner 500, and the connection operation is relatively convenient.

[0048] The same or similar parts between the various embodiments in this specification can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the method embodiment described later, since it corresponds to the system, the description is relatively simple, and the relevant parts can be referred to the partial description of the system embodiment.

[0049] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A connecting device, comprising a first connecting member and a second connecting member, wherein at least a part of the first connecting member is inserted into the second connecting member for locking. It is characterized in that the first connecting member includes a substrate, a biasing device and two locking blocks. The biasing device is mounted on the substrate. The two locking blocks are respectively rotatably mounted on the substrate through two pivot shafts, so that the locking blocks can move between a first position and a second position. The biasing device pushes the two locking blocks to move in a direction away from the biasing device, so that both of the two locking blocks are in the first position where at least a part extends outside the lateral sides of the substrate; the second connecting member includes a riveting piece, and the vertical sides of the riveting piece are folded along a direction perpendicular to the riveting piece to form two guide rails, and positioning grooves are formed on both of the two guide rails; wherein, when the substrate is inserted between the two guide rails, the guide rails press the locking blocks to move from the first position to the second position. When the substrate is inserted to a specified position, the biasing device spring pushes the two locking blocks to move from the second position to the first position, so that both of the two locking blocks are at least partially inserted into the corresponding positioning grooves.

2. The connection device according to claim 1, characterized in that: The biasing device is a U-shaped reset spring piece. The horizontal side of the reset spring piece is fixed on the substrate. The end parts of the two vertical sides of the reset spring piece are respectively in contact with the two locking blocks. Accommodating grooves are formed on both of the two locking blocks, and the end parts of the two vertical sides of the reset spring piece respectively extend into the two accommodating grooves.

3. The connection device according to claim 2, characterized in that: The first connecting member further includes a fixing block. The fixing block includes a baffle and a convex plate perpendicular to the baffle. The baffle is mounted on the substrate through a positioning pin. The convex plate extends outside the longitudinal edge of the substrate. The horizontal side of the reset spring piece is accommodated in the space between the baffle and the substrate and between the convex plate and the positioning pin.

4. The connection device according to claim 2, characterized in that: The first connecting member further includes a cushion block. The cushion block is fixedly mounted on the substrate. The cushion block is arranged between the two locking blocks. When the locking blocks are in the first position, the two locking blocks respectively abut against the opposite sides of the cushion block.

5. The connection device according to claim 1, characterized in that: First limiting strips and second limiting strips are arranged on both sides of the end face of the substrate close to the locking blocks. The first limiting strip limits the lateral expansion range of the biasing device, and the second limiting strip limits the rotation range of the locking blocks.

6. The connection device according to claim 1, characterized in that: The positioning groove is a through groove formed on the guide rail. When the locking block is in the first position, the locking block at least partially passes through the through groove.

7. The connection device according to any one of claims 1 to 6, characterized in that: Both of the two guide rails are folded along a direction parallel to the riveting piece and close to each other to form limiting plates to limit the substrate from moving in a direction away from the riveting piece.

8. A seat belt assembly, characterized in that: It includes a webbing, a steel wire rope, a waist pretensioner and the connecting device according to any one of claims 1-7. The webbing is connected to the first connecting member, and the waist pretensioner is connected to the second connecting member through the steel wire rope.

Images