CN213511610U

CN213511610U - Self-tightening assembly part

Info

Publication number: CN213511610U
Application number: CN202022519996.0U
Authority: CN
Inventors: 史阳颖
Original assignee: Tianjin Huijin Technology Co ltd
Current assignee: Tianjin Huijin Technology Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-06-22
Anticipated expiration: 2030-11-04

Abstract

The present disclosure provides a self-tightening assembly comprising: an outer bolt and an inner bolt; the outer bolt comprises an outer screw rod and an outer nut; the outer nut is fixedly connected with one end of the outer screw rod; one end of the outer nut, which is far away from the outer screw rod, is provided with a first mounting groove; one side of the first mounting groove, which is close to the outer screw rod, is provided with a through hole; the through hole penetrates through the outer nut and extends into the outer screw rod; a wedge-shaped groove is formed in one end, far away from the outer nut, of the outer screw rod; the wide edge of the wedge-shaped groove is close to the outer nut; the wedge-shaped groove is communicated with the through hole; one side of the outer screw rod, which is far away from the outer nut, is provided with an adjusting groove along the length direction of the outer screw rod; the inner bolt comprises an inner screw rod and an inner nut; the inner nut is fixedly connected with one end of the inner screw rod; the inner nut is arranged inside the first mounting groove; the inner screw penetrates through the through hole and is rotatably and fixedly connected with the through hole; the outer side thread of one end of the inner screw rod extending into the wedge-shaped groove and extending into the wedge-shaped groove is sleeved with a wedge-shaped block. This technical scheme is fixed firm, the simple operation, and the practicality is strong.

Description

Self-tightening assembly part

Technical Field

Embodiments of the present disclosure relate generally to the field of assembly technology and, more particularly, to a self-tightening assembly.

Background

Assembly is a mechanical term that refers to the parts used to process the assembled product, conventionally referred to as an assembly. However, after the existing assembly part is used for assembling the product, the assembly part is easy to fall off, and the practicability is poor.

Disclosure of Invention

The embodiment of the disclosure provides a self-tightening assembly part which is good in assembly and fixing effect and strong in practicability.

The self-tightening assembly comprises: an outer bolt and an inner bolt; the outer bolt comprises an outer screw rod and an outer nut; the outer nut is fixedly connected with one end of the outer screw rod; one end of the outer nut, which is far away from the outer screw rod, is provided with a first mounting groove; one side of the first mounting groove, which is close to the outer screw rod, is provided with a through hole; the through hole penetrates through the outer nut and extends into the outer screw rod; a wedge-shaped groove is formed in one end, far away from the outer nut, of the outer screw rod; the wide edge of the wedge-shaped groove is close to the outer nut; the wedge-shaped groove is communicated with the through hole; one side of the outer screw rod, which is far away from the outer nut, is provided with an adjusting groove along the length direction of the outer screw rod; the adjusting groove penetrates through the outer screw rod;

the inner bolt comprises an inner screw rod and an inner nut; the inner nut is fixedly connected with one end of the inner screw rod; the inner nut is arranged inside the first mounting groove; the inner screw penetrates through the through hole and is rotatably and fixedly connected with the through hole; the outer side thread of one end of the inner screw rod extending into the wedge-shaped groove and extending into the wedge-shaped groove is sleeved with a wedge-shaped block.

The above aspects and any possible implementations further provide an implementation where the wedge block has an outer dimension matching a broadside end of the wedge slot.

In accordance with the above aspect and any one of the possible implementations, there is further provided an implementation in which the first mounting groove has a cross-sectional shape of a regular hexagon.

In the aspect and any possible implementation manner described above, a second mounting groove is formed in one side of the inner nut, which is far away from the inner screw rod; the cross section of the second mounting groove is in a regular hexagon shape.

In the aspect and any possible implementation manner described above, a limiting block is fixedly arranged at one end of the inner screw rod, which is far away from the inner nut.

Compared with the prior art, the beneficial effect of this disclosure is:

this self-tightening built-up member of this disclosure cooperatees through the screw hole with on the work piece, twists outer screw rod in the screw hole to through twisting inner nut drive inner screw rod and rotate, thereby the removal of drive wedge, strut outer screw rod, reach the fastening effect, convenient operation, fixed effectual, the practicality is strong.

It should be understood that the statements herein reciting aspects are not intended to limit the critical or essential features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:

FIG. 1 is a schematic view of the mounting structure of the self-tightening assembly of the present disclosure;

FIG. 2 is a schematic cross-sectional view of a self-tightening assembly of the present disclosure;

fig. 3 is a side view schematic of the self-clinching assembly of the present disclosure.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:

1, an external bolt, 2 an internal bolt and 3 a threaded hole;

11, an external nut, 12, an external screw rod, 13, a first mounting groove, 14 a through hole, 15 a wedge-shaped groove and 16 an adjusting groove;

21 inner screw cap, 22 inner screw rod, 23 wedge block, 24 second mounting groove and 25 limiting block.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

A self-tightening assembly provided by an embodiment of the present disclosure is described below with reference to fig. 1 to 3.

As shown in fig. 1, a self-tightening assembly according to an embodiment of the present disclosure includes an outer bolt 1 and an inner bolt 2.

Specifically, as shown in fig. 2, the outer bolt 1 includes an outer bolt 12 and an outer nut 11; the outer nut 11 is fixedly connected with one end of an outer screw 12; one end of the outer nut 11, which is far away from the outer screw 12, is provided with a first mounting groove 13; one side of the first mounting groove 13 close to the outer screw 12 is provided with a through hole 14; the through hole 14 penetrates through the outer nut 11 and extends into the outer screw rod 12; a wedge-shaped groove 15 is formed in one end, far away from the outer nut 11, of the outer screw rod 12; the wide side of the wedge-shaped groove 15 is close to the outer nut 11; the wedge-shaped groove 15 is communicated with the through hole 14; one side of the outer screw 12, which is far away from the outer nut 11, is provided with an adjusting groove 16 along the length direction of the outer screw 12; the adjusting groove 16 penetrates through the outer screw 12;

the inner bolt 2 comprises an inner screw rod 22 and an inner nut 21; the inner nut 21 is fixedly connected with one end of the inner screw 22; the inner nut 21 is arranged inside the first mounting groove 13; the inner screw 22 penetrates through the through hole 14 and is fixedly connected with the through hole 14 in a rotatable manner; the inner screw 22 extends into the wedge-shaped groove 15, and a wedge block 23 is sleeved on the outer side thread of one end of the inner screw extending into the wedge-shaped groove 15.

In the embodiment, the outer screw 12 is matched with the threaded hole 3 of the workpiece, the outer nut 11 is rotated to screw the outer screw 12 into the threaded hole 3, then the inner nut 21 is screwed to drive the inner screw 22 to rotate, so that the wedge block 23 is driven to move away from the inner nut 21, the outer contour of the wedge block 23 abuts against the inner wall of the wedge groove 15 in the moving process, the acting force between the wedge block 23 and the wedge groove 15 is increased along with the rotation of the inner nut 21, the outer screw 12 is expanded, the outer screw 12 abuts against the inner wall of the threaded hole 3, and the fixing effect is improved; the outer screw 12 is divided into two parts by the adjusting groove 16, so that the outer screw 12 can be smoothly opened under the action of the wedge block 23, and the practicability of the assembly part is improved.

In a preferred embodiment, as shown in FIG. 2, the wedge block 23 is sized to match the broadside end of the wedge slot 15.

In this embodiment, the outer dimension of the wedge 23 is matched with one end of the wide side of the wedge groove 15, so that when the outer screw 12 is in an unopened state, the wedge 23 is attached to the wedge groove 15, and a certain friction force exists between the wedge 23 and the wedge groove, thereby preventing the wedge 23 from rotating along with the inner screw 22 when the inner screw cap 21 is rotated, and preventing the wedge 23 from being incapable of driving the wedge 23 to move.

In a preferred embodiment, as shown in fig. 3, a second mounting groove 24 is formed on a side of the inner nut 21 away from the inner screw 22; the first mounting groove 13 and the second mounting groove 24 have a regular hexagonal cross-sectional shape.

In this embodiment, an operator can screw the outer nut 11 and the inner nut 21 by using an inner hexagonal wrench, and both the first mounting groove 13 and the second mounting groove 24 are regular hexagons to prevent misoperation, so that when the outer nut 11 is screwed, the inner hexagonal wrench matched with the outer nut 11 cannot enter the second mounting groove 24 due to different sizes of the first mounting groove 13 and the second mounting groove 24, thereby effectively preventing misoperation and improving the convenience of operation.

In a preferred embodiment, as shown in fig. 2, a stop block 25 is fixedly disposed at an end of the inner screw 22 away from the inner nut 21.

In this embodiment, by providing the limiting block 25, the wedge block 23 is prevented from being separated from the inner screw 22, which causes failure of the assembly member, and improves the practicability of the assembly member.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A self-tightening assembly, comprising: an outer bolt and an inner bolt; the outer bolt comprises an outer screw rod and an outer nut; the outer nut is fixedly connected with one end of the outer screw rod; one end of the outer nut, which is far away from the outer screw rod, is provided with a first mounting groove; one side of the first mounting groove, which is close to the outer screw rod, is provided with a through hole; the through hole penetrates through the outer nut and penetrates into the outer rod; a wedge-shaped groove is formed in one end, far away from the outer nut, of the outer screw rod; the wide edge of the wedge-shaped groove is close to the outer nut; the wedge-shaped groove is communicated with the through hole; one side of the outer screw rod, which is far away from the outer nut, is provided with an adjusting groove along the length direction of the outer screw rod; the adjusting groove penetrates through the outer screw rod;

the inner bolt comprises an inner screw rod and an inner nut; the inner nut is fixedly connected with one end of the inner screw rod; the inner nut is arranged inside the first mounting groove; the inner screw penetrates through the through hole and is fixedly connected with the through hole in a rotatable manner; the inner screw rod extends into the wedge-shaped groove and extends into a wedge-shaped block is sleeved on the outer side thread of one end of the wedge-shaped groove.

2. The self-tightening assembly according to claim 1, wherein the wedge block has an outer dimension that matches a broadside end of the wedge slot.

3. The self-tightening assembly according to claim 2, wherein the first mounting groove has a cross-sectional shape of a regular hexagon.

4. The self-tightening assembly according to claim 3, wherein a second mounting groove is formed in a side of the inner nut remote from the inner screw; the cross section of the second mounting groove is in a regular hexagon shape.

5. The self-tightening assembly according to claim 4, wherein a stop block is fixedly disposed at an end of the inner screw remote from the inner nut.