CN221347555U

CN221347555U - Fastener and fastening assembly

Info

Publication number: CN221347555U
Application number: CN202323326734.2U
Authority: CN
Inventors: 朱淑珍; 黄垚林
Original assignee: BYD Co Ltd; BYD Precision Manufacturing Co Ltd
Current assignee: BYD Co Ltd; BYD Precision Manufacturing Co Ltd
Filing date: 2023-12-05
Publication date: 2024-07-16
Anticipated expiration: 2033-12-05

Abstract

The present disclosure relates to a fastener and a fastening assembly for joining at least one workpiece, one of the at least one workpiece having a mounting slot, the fastener comprising: a body for attachment to at least one workpiece; a head fixedly coupled to the body for being at least partially received in the mounting slot; and the elastic piece is arranged on the head part and used for being abutted against the inner wall of the mounting groove. When the head of the fastener is arranged in the mounting groove of the workpiece, the elastic piece is abutted against the inner wall of the mounting groove of the workpiece, so that the connection between the fastener and the workpiece is fastened, the connection looseness of the fastener is prevented, and the stability and safety of the connection of the fastener are improved. In addition, the elastic piece is arranged at the head of the fastener, so that the structure of the main body is not damaged, the structural strength of the main body is not influenced, and the stability and the safety of the connection of the fastener are further improved.

Description

Fastener and fastening assembly

Technical Field

The present disclosure relates to the field of fasteners, and in particular, to a fastener and a fastening assembly.

Background

The screw is a tool for fastening the parts of the device step by utilizing the physical and mathematical principles of the inclined circular rotation and friction force of the object.

Under impact, vibration or load, screws attached to the work piece may loosen or lose connection, resulting in failure of the connection to the work piece or equipment, affecting the work, and even possibly being dangerous.

Disclosure of utility model

It is an object of the present disclosure to provide a fastener and a fastening assembly, the connection between the fastener and a workpiece being more secure, preventing the fastener from loosening, improving the stability and safety of the connection, to at least partially solve the above-mentioned technical problems.

To achieve the above object, a first aspect of the present disclosure provides a fastener for joining at least one work pieces, one of the at least one work pieces having a mounting groove, the fastener comprising:

a body for connection to the at least one workpiece;

A head fixedly coupled to the body for being at least partially received in the mounting slot; and

And the elastic piece is arranged on the head part and is used for being abutted against the inner wall of the mounting groove.

Optionally, the head portion is provided with a receiving hole, the elastic member is disposed in the receiving hole, and the elastic member has an abutting portion capable of at least partially extending from an opening of the receiving hole for abutting against an inner wall of the mounting groove.

Optionally, the receiving hole is configured as a blind hole, and the abutment portion is capable of protruding at least partially from an opening of the blind hole.

Optionally, the receiving hole is configured as a through hole, and the two abutting portions of the elastic member can at least partially protrude from openings at both ends of the through hole, respectively.

Optionally, the number of the accommodating holes is one or more, and an elastic piece is arranged in each accommodating hole.

Optionally, the head has a slot into which the installation tool is inserted, and the slot communicates with the accommodating hole, so that the elastic element can deform under the plugging action of the installation tool, and the abutting portion is at least partially contracted into the accommodating hole.

Optionally, the head portion has a relief groove communicating with the receiving hole for providing a relief space required for deformation of the elastic member.

Optionally, the elastic member includes an elastic portion connected to the abutment portion, the elastic portion being at least partially located in the slot, the elastic portion being configured to be deformable toward the avoidance slot under the plugging action of the installation tool.

Optionally, the elastic portion is configured as a spring.

Optionally, the abutment is configured as a spherical body.

Optionally, the slot is configured as a straight slot, a cross slot or a polygonal slot.

Optionally, the main body is provided with external threads.

A second aspect of the present disclosure provides a fastening assembly, including a spacer and the fastener described above, where the spacer is sleeved on the main body, and the spacer is located between the head and a bottom of the mounting groove.

Through above-mentioned technical scheme, the head of fastener is located to the elastic component, and the head of fastener when installing in the mounting groove, the elastic component butt in the inner wall of work piece mounting groove can make the fastener more fastened with the connection of work piece, prevents that the connection of fastener from becoming flexible, improves the stability and the security that the fastener is connected. In addition, compared with the prior art that the elastic piece is arranged on the main body, the elastic piece is arranged on the head of the fastener, the structure of the main body is not damaged, the structural strength of the main body is not affected, and the stability and the safety of the connection of the fastener are further improved.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

FIG. 1 is a top view of a fastener provided by an exemplary embodiment of the present disclosure;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic top view of a fastening assembly disclosed in an exemplary embodiment of the present disclosure as installed on a workpiece;

fig. 4 is a B-B cross-sectional view in fig. 3.

Description of the reference numerals

10-A fastener; 11-head; 111-receiving holes; 12-a body; 13-an elastic member; 131-an elastic part; 1310-a spring; 132-abutment; 1320-a spherical body; 14-slots; 15-avoiding grooves; 20-a workpiece; 21-a mounting groove; 30-gasket.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

In this disclosure, unless otherwise indicated, directional terms such as "inner and outer" are used to refer to the inner and outer sides of the component or structure itself; unless specifically stated otherwise, the terms first, second, etc. are used to distinguish one element from another without sequence or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.

As shown in fig. 1 and 2, a first aspect of the present disclosure provides a fastener 10 for joining at least one workpiece 20, one of the at least one workpiece 20 having a mounting slot 21, the fastener 10 comprising a body 12, a head 11, and a resilient member 13. Wherein, main part 12 and head 11 fixed connection, main part 12 are used for connecting at least one work piece 20, and head 11 is used for holding in mounting groove 21 at least partially, and head 11 is located to elastic component 13, and when head 11 held in mounting groove 21 at least partially, elastic component 13 butt in the inner wall of mounting groove 21, has static friction between elastic component 13 and the mounting groove 21, can make the connection between fastener 10 and work piece 20 more stable, prevents to connect between fastener 10 and the work piece 20 loose.

In some embodiments, the resilient member 13 may be provided on the head 11 of the fastener 10 in any suitable form. For example, the head 11 of the fastener 10 may be provided with a receiving hole 111, the elastic member 13 is disposed in the receiving hole 111, and the elastic member 13 has an abutment portion 132, and the abutment portion 132 can at least partially protrude from an opening of the receiving hole 111 for abutting against an inner wall of the mounting groove 21. The accommodating hole 111 is configured to enable the elastic member 13 to retract into the accommodating hole 111 at least partially, for example, the abutting portion 132 of the elastic member 13 may retract into the accommodating hole 111 at least partially, so as to avoid the elastic member 13 from affecting the installation of the fastener 10 when the head 11 of the fastener 10 is installed in the installation groove 21, and the abutting portion 132 may extend from the opening of the accommodating hole 111 at least partially when the head 11 of the fastener 10 is located in the installation groove 21, so as to abut against the inner wall of the installation groove 21, so as to achieve the purpose of preventing loosening.

In addition, the number of the accommodating holes 111 may be one or more, and the elastic members 13 are disposed in each accommodating hole 111, and when the number of the accommodating holes 111 is plural, the plurality of elastic members 13 may abut against the inner wall of the mounting groove 21, so that the stability of the connection between the fastener 10 and the workpiece 20 can be further improved.

In the above-described embodiment, the receiving hole 111 may be configured in various types. For example, the receiving hole 111 may be configured as a blind hole, the elastic member 13 is disposed in the blind hole, and the abutment portion 132 of the elastic member 13 at least partially protrudes from an opening of the blind hole to abut against an inner wall of the mounting groove 21, thereby improving stability of connection between the fastener 10 and the workpiece 20. Alternatively, the receiving hole 111 may be configured as a through hole, and the two abutting portions 132 of the elastic member 13 may at least partially protrude from openings at both ends of the through hole, respectively, so that the two abutting portions 132 of the elastic member 13 abut against the inner wall of the mounting groove 21, respectively.

It should be understood that the receiving hole 111 may be configured as other types of holes, and will not be described herein.

As shown in fig. 1 and 2, in addition, in some embodiments, the head 11 of the fastener 10 has a slot 14 into which an installation tool is inserted, and the slot 14 communicates with the receiving hole 111, so that the elastic member 13 can be deformed by the insertion of the installation tool, and the abutment 132 is at least partially contracted to the receiving hole 111. When the fastener 10 is installed, the installation tool is inserted into the insertion groove 14 and abuts against the elastic member 13, and the elastic member 13 is bent such that the abutting portion 132 is at least partially retracted into the receiving hole 111, to prevent the abutting portion 132 protruding from the receiving hole 111 from interfering with the installation of the fastener 10, so that the fastener 10 is more easily installed. After the fastener 10 is installed, the elastic member 13 is reset under the action of its own elastic force after the installation tool is separated from the slot 14, so that the abutting portion 132 abuts against the inner wall of the installation slot 21, thereby achieving the purpose of loosening.

In order to provide a relief space for contraction and bending of the elastic member 13, a relief groove 15 communicating with the receiving hole 111 may be provided at the head 11 of the fastener 10, and the shape and space size of the relief groove 15 may be set according to actual conditions, without limitation.

In addition, the slot 14 may be formed at a side of the head 11 away from the main body 12, and the elastic member 13 is bent toward a direction approaching the main body 12 when the installation tool is inserted into the slot 14 and abuts against the elastic member 13. Accordingly, the relief groove 15 may be located at least partially on a side of the receiving bore 111 facing away from the opening of the slot 14.

When the number of the accommodating holes 111 is plural, the accommodating holes 111 and the slots 14 may be mutually communicated, so that the mounting tool may be capable of abutting and bending the fastening member 10 in each accommodating hole 111 after being inserted into the slot 14, so as to bend and shrink the elastic member 13 in each accommodating hole 111. The slots 14 may be arbitrarily arranged in a suitable form, for example, the slots 14 may be configured as a straight slot, or a cross slot as shown in fig. 1, or a polygonal slot (for example, an inner four corner slot, an inner six corner slot, or an inner eight corner slot).

In some embodiments, the elastic member 13 includes an elastic portion 131 connected to the abutting portion 132, and the elastic portion 131 may be at least partially located in the slot 14, so that the installation tool is convenient to abut on the elastic portion 131 of the elastic member 13 when inserted into the slot 14. The elastic portion 131 may be configured to be deformable toward the escape groove 15 by the insertion of the installation tool.

In the above embodiment, the installation tool is inserted into the slot 14 and abuts against the elastic portion 131, and the elastic portion 131 deforms toward the escape slot 15 under the action of the installation tool, so that the abutting portion 132 of the elastic member 13 is at least partially retracted into the accommodating hole 111.

It should be understood that the elastic portion 131 may be located only in the accommodating hole 111, the slot 14 communicates with the accommodating hole 111, the installation tool passes through the slot 14 and abuts against the elastic portion 131 of the elastic member 13 provided in the accommodating hole 111, and the elastic portion 131 can be deformed toward the avoiding groove 15 under the plugging action of the installation tool.

In some embodiments, the elastic member 13 may be arbitrarily configured in an appropriate form. For example, the elastic part 131 may be configured as a spring 1310, or the elastic part 131 may be configured as an elastic rod or a spring sheet, etc., to which the present disclosure is not limited.

The abutment 132 may be configured as a ball 1320 such that the abutment 132 at least partially collapses into the receiving bore 111 or at least partially protrudes from the receiving bore 111 to prevent snagging. Of course, the abutting portion 132 may also be configured as, for example, a rectangular body, a structure having an irregular shape, or the like, to which the present disclosure is not limited.

In addition, as shown in fig. 3 and 4, external threads may be provided on the body 12, threaded holes may be provided on the workpieces 20, the body 12 may be threadedly coupled to the threaded holes, and when at least two workpieces 20 need to be coupled, at least one workpiece 20 may be provided with a threaded hole, for example, when one of the workpieces 20 is provided with a threaded hole, the body 12 is threadedly coupled to the threaded hole, and the remaining workpieces 20 may be clamped between the head 11 and the workpiece 20 having the threaded hole. Fig. 4 exemplarily shows an embodiment in which both the work pieces 20 have screw holes, the body 12 may be screw-coupled to the both work pieces 20, and the head 11 is accommodated in the mounting groove 21 of one of the work pieces 20, and the abutting portion 132 of the elastic member 13 may abut against the inner wall of the mounting groove 21. In such an embodiment, the fastener 10 may be used as, for example, a set screw, a set bolt, or the like.

In other embodiments, which are not shown, a locking structure such as a claw or a locking groove may be provided on the main body 12 to lock the main body 12 to the workpiece 20, and in this case, the abutment portion 132 of the elastic member 13 abuts against the inner wall of the mounting groove 21 of the workpiece 20, which may have a secondary locking effect to further prevent loosening or falling.

As shown in fig. 3 and 4, the second aspect of the present disclosure provides a fastening assembly, including a spacer 30 and the fastener 10 described above, where the spacer 30 is sleeved on the main body 12, the spacer 30 is located between the head 11 and the bottom of the mounting groove 21, the spacer 30 may further improve the anti-loosening performance of the fastener 10, and the spacer 30 may be a flat spacer, so that on the basis of improving the anti-loosening performance of the fastener 10, an anti-leakage effect can be achieved, which is not repeated herein.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the embodiments described above, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims

1. A fastener for joining at least one workpiece, one of the at least one workpiece having a mounting slot, the fastener comprising:

a body for connection to the at least one workpiece;

2. The fastener of claim 1, wherein the head portion defines a receiving aperture, the resilient member being disposed in the receiving aperture, the resilient member having an abutment portion at least partially extendable from an opening of the receiving aperture for abutment against an inner wall of the mounting groove.

3. The fastener of claim 2, wherein the receiving hole is configured as a blind hole, the abutment being at least partially extendable from an opening of the blind hole.

4. The fastener according to claim 2, wherein the receiving hole is configured as a through hole, and the two abutting portions of the elastic member are capable of protruding at least partially from openings at both ends of the through hole, respectively.

5. A fastener according to any one of claims 2 to 4, wherein the number of said receiving holes is one or more, and each receiving hole has a resilient member disposed therein.

6. A fastener according to any one of claims 2 to 4, wherein the head has a socket into which an installation tool is inserted, the socket being in communication with the receiving aperture such that the resilient member is deformable upon insertion of the installation tool to at least partially retract the abutment into the receiving aperture.

7. The fastener of claim 6, wherein said head portion has a relief groove in communication with said receiving hole for providing a relief space for deformation of said resilient member.

8. The fastener of claim 7, wherein the resilient member includes a resilient portion connected to the abutment portion, the resilient portion being at least partially located within the socket, the resilient portion being configured to deform toward the relief groove upon insertion of the installation tool.

9. The fastener of claim 8, wherein the resilient portion is configured as a spring.

10. The fastener of claim 6, wherein the abutment is configured as a spherical body.

11. The fastener of claim 6, wherein the slot is configured as a straight slot, a cross slot, or a polygonal slot.

12. The fastener of claim 1, wherein the body is provided with external threads.

13. A fastening assembly comprising a spacer and a fastener according to any one of claims 1 to 12, the spacer being arranged around the body, the spacer being arranged to lie between the head and the bottom of the mounting groove.