CN217682670U

CN217682670U - Self-fixing rivet

Info

Publication number: CN217682670U
Application number: CN202221231635.9U
Authority: CN
Inventors: 缪建国; 邱晓东; 李立军
Original assignee: Wuxi Anxinda Science & Technology Co ltd
Current assignee: Wuxi Anxinda Science & Technology Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-10-28
Anticipated expiration: 2032-05-19

Abstract

The utility model relates to a from solid fixed rivet, including the nail body and the nail core, the nail body is including the nail body head of nail body pipe and nail body pipe bottom, and the nail core is equipped with the rupture groove including the nail core head on nail core pole and nail core pole top on the nail core pole, is equipped with the nail body hole that extends to nail body head in the nail body pipe, and the nail body pipe includes that the inner wall is impressed the connecting portion of rupture inslot, is located the nail body pipe upper portion of connecting portion top, is located the nail body pipe lower part of connecting portion below, has the clearance between the terminal surface of nail body pipe and the nail core head. The utility model discloses a from solid fixed rivet can connect and have certain interval by the riveting piece.

Description

Self-fixing rivet

Technical Field

The utility model relates to a rivet especially relates to a from fixed rivet.

Background

Rivets are widely used in all industries because of their ease of use. Riveting techniques and tools for rivets are also becoming more sophisticated, rivets are also being used in a variety of special situations and are now becoming effective and robust mechanical connectors. However, no matter what kind of occasion the rivet is used, the existing rivet is used for riveting two or more closely-jointed riveted parts, the rivet is connected with the plurality of riveted parts by utilizing self deformation, and the adjacent surfaces of the riveted parts are closely jointed after the riveted parts are riveted.

With the development of industrialization, not only riveting a plurality of closely attached connected members but also fixedly connecting a plurality of separated workpieces exist at present. This type of attachment requires that the workpieces be connected with a certain spacing therebetween rather than a close fit. The existing rivet cannot be used for the riveting situation, so that a novel self-fixing rivet needs to be designed for realizing the riveting operation of the workpiece.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the present invention provides a self-fixing rivet capable of connecting a rivet member having a certain interval.

The utility model discloses a from solid fixed rivet, including the nail body and the nail core, the nail body is including the nail body head of nail body pipe and nail body pipe bottom, and the nail core includes the nail core head on nail core pole and nail core pole top, is equipped with the rupture groove on the nail core pole, is equipped with the nail body hole that extends to nail body head in the nail body pipe, the nail body pipe includes that the inner wall is impressed the connecting portion of rupture inslot, is located the nail body pipe upper portion of connecting portion top, is located the nail body pipe lower part of connecting portion below, has the clearance between the terminal surface of nail body pipe and the nail core head.

The self-fixing rivet has the advantages that the part, namely the connecting part, corresponding to the fracture groove on the inner wall of the nail body pipe is pressed into the fracture groove, and meanwhile, a gap is reserved between the end face of the nail body pipe and the nail core head, so that the nail core rod is connected with the nail body pipe through the connecting part of the nail body pipe. The lower part of the nail body pipe can be pressed by the connecting part under the pulling of the riveter through the nail core rod, so that the nail core rod expands and deforms, and the first connected piece below the nail core rod is pressed on the head of the nail body. Simultaneously, the nail core head can be compressed tightly the second on the nail body pipe upper portion after the deformation by the connecting piece to make first by the certain distance of can keeping apart after connecting piece and the riveting of second by the connecting piece, realize the spaced riveting finally.

A self-setting rivet according to claim 1, characterized in that: the outer wall of the nail body pipe is provided with a plurality of connecting grooves.

Due to the arrangement of a plurality of connecting grooves, the nail body pipe is more prone to expansion and deformation after being pressed.

A self-setting rivet according to claim 2, characterized in that: the depth of the plurality of connecting grooves becomes gradually shallower from the head of the nail body to the tail end of the nail body pipe.

This setting makes the nail body pipe be close to the part of nail body head and changes deformation, like this, under the riveter effect, the nail body pipe can be deformed in proper order to nail body pipe end direction by the nail body head to the realization is compressed tightly in proper order of connecting piece and second by the connecting piece and is riveted first.

A self-setting rivet according to claim 1, characterized in that: the nail body hole is a truncated cone hole with the diameter gradually reduced from the head of the nail body.

The arrangement enables the connecting part of the nail body tube to be pressed into the fracture groove more easily, and meanwhile, the lower part of the nail body tube is easier to deform.

The above description is only an outline of the technical solution of the present invention, and in order to make the technical means of the present invention more clearly understood and to embody the same in accordance with the content of the specification, the embodiments of the present invention are described in detail below.

Drawings

FIG. 1 is a block diagram of a self-setting rivet;

FIG. 2 is a cross-sectional view of a self-setting rivet;

FIG. 3 is a front view of the shank of FIG. 1;

FIG. 4 is a cross-sectional view of the shank of FIG. 2;

FIG. 5 is a front view of the spike body with a double trapezoidal shaped attachment slot;

FIG. 6 is a partial block diagram of the mandrel;

FIG. 7 is a view showing a state of use of the self-setting rivet.

In the figure, a nail body 1, a nail core 2, a nail body tube 3, a nail body head 4, a nail core rod 5, a nail core head 6, a fracture groove 7, a nail body hole 8, a connecting part 9, a nail body tube upper part 10, a nail body tube lower part 11, a first connected part 12, a second connected part 13 and a connecting groove 14.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The first embodiment is as follows:

referring to fig. 1 to 7, the self-fixing rivet of this embodiment, including the nail body 1 and the nail core 2, the nail body includes the nail body head 4 of nail body pipe 3 and nail body pipe bottom, the nail core includes the nail core head 6 on nail core pole 5 and nail core pole top, be equipped with fracture groove 7 on the nail core pole, be equipped with the nail body hole 8 that extends to the nail body head in the nail body pipe, the nail body pipe includes that the inner wall is impressed connecting portion 9 in the fracture groove, be located the nail body pipe upper portion 10 of connecting portion top, be located the nail body pipe lower part 11 of connecting portion below, have the clearance between the terminal surface of nail body pipe and the nail core head.

The utility model discloses a from solid rivet, because the part that corresponds with the rupture groove on the nail body inside pipe wall, connecting portion are impressed the rupture inslot promptly, have the clearance between nail body terminal surface and the nail core head simultaneously, like this, the nail core pole passes through the connecting portion of nail body, has realized being connected with nail body pipe. The lower part of the nail body pipe can be pressed by the connecting part under the pulling of the riveter, so that the nail core rod expands and deforms, and the first connected piece below the nail core rod is pressed on the head of the nail body. Simultaneously, the nail core head can be compressed tightly the second on the nail body pipe upper portion after the deformation by the connecting piece to make first by the certain distance of can keeping apart after connecting piece and the riveting of second by the connecting piece, realize the spaced riveting finally.

The gap between the end face of the nail body pipe and the nail core head enables the connecting part to firstly press the lower part of the nail body pipe to enable the nail body pipe to expand and deform, then the nail core head presses the upper part of the nail body pipe to enable the nail body pipe to expand and deform, and therefore the compression riveting of the first connected piece and the second connected piece is completed in sequence.

The following is the preparation method and the specific working principle of the self-fixing rivet.

An operator firstly puts the nail core rod into the nail body hole of the nail body tube, and a certain gap is arranged between the end surface of the nail body tube and the nail core head. The distance of this clearance is less, when actually implementing about 0.5 millimeter, as long as guarantee connecting portion can drive nail siphuncle lower part inflation deformation at first.

The nail body hole can be a cylindrical hole or a reducing hole. In this embodiment, the nail body hole is a truncated cone hole with gradually decreasing hole diameter from the head of the nail body. The nail core rod is a cylindrical rod, and the outer diameter of the nail core rod is adapted to the top end of the nail body hole. This makes the connection of the staple tube easier to press into the rupture groove, while the lower part of the staple tube is more deformable.

The fracture groove may be formed by a truncated cone with two end faces connected.

After the nail body tube and the nail core rod are assembled, an operator punches the connecting groove 14 on the outer wall of the nail body tube through the punching equipment so that the connecting part of the nail body tube is pressed into the fracture groove of the nail core rod, and the nail body tube and the nail core rod are connected at the fracture groove. During specific implementation, the number of the connecting grooves and the interval between the adjacent connecting grooves can be adaptively adjusted according to parameters such as specific interval distance of the connected piece.

In order to make the nail body pipe easier to deform, a plurality of connecting grooves can be punched on the upper side and the lower side of the connecting part of the nail body pipe, so that the thickness of the nail body pipe at the connecting grooves is reduced, and the nail body pipe is easier to expand and deform after being pressed.

The cross section of the connecting groove can be in a rectangular, trapezoidal, double-trapezoidal and other structures. It is preferably of a double trapezoidal structure, i.e. the cross section of the connecting groove consists of two isosceles trapezoids connected in sequence.

After the connecting part of the nail body tube is pressed into the fracture groove, an operator can pass the nail body together with the nail core through the connecting holes of the first connected piece 12 and the second connected piece 13.

The operator then pulls the stem through the riveter. And the nail core rod presses the lower part of the nail body pipe through the connecting part pressed into the fracture groove under the pulling of the riveter so as to expand and deform the nail body pipe until the expanded and deformed lower part of the nail body pipe presses the first connected piece on the head of the nail body.

Then, the mandrel bar continues to move under the action of the riveter. Due to the fact that the pulling force is gradually increased, the connecting portion of the nail body tube is gradually separated from the fracture groove. After the nail core head is contacted with the end face of the nail body tube, the nail core head applies pressure to the upper part of the nail body tube under the action of the riveter so that the upper part of the nail body tube gradually expands and deforms until the second connected piece is pressed between the deformed nail body tube and the nail core head.

After the first connected piece and the second connected piece are both pressed, the pulling force applied to the nail core rod is gradually increased under the action of the riveter until the nail core rod is broken at the breaking groove, so that the first connected piece and the second connected piece are riveted. After riveting, the first connected piece and the second connected piece are pressed between the mandrel head and the nail body head, and the first connected piece and the second connected piece realize spacing through the deformed nail body tube.

Preferably, in the self-fixing rivet of the present embodiment, the depth of the plurality of connecting grooves becomes gradually shallower from the head of the shank toward the distal end of the shank pipe.

This setting makes the nail body pipe be close to the part of nail body head and changes deformation, like this, under the riveter effect, nail body pipe can be in proper order deformed to nail body pipe tip direction by nail body head to the realization is compressed tightly in proper order by connecting piece and second by the riveting of connecting piece to first.

The above are only preferred embodiments of the present invention, which are used to assist the skilled person in realizing the corresponding technical solutions, and are not used to limit the protection scope of the present invention, which is defined by the appended claims. It should be noted that, for those skilled in the art, on the basis of the technical solutions of the present invention, several modifications and variations can be made, and these modifications and variations should also be regarded as the protection scope of the present invention. Also, it should be understood that although the present description has been described in terms of the above embodiments, not every embodiment may include only a single embodiment, and such description is for clarity only, and those skilled in the art will recognize that the description is taken as a whole, and that the embodiments may be suitably combined to form other embodiments as will be appreciated by those skilled in the art.

Claims

1. The utility model provides a from set rivet, includes the nail body (1) and the nail core (2), the nail body is including nail body head (4) of nail body pipe (3) and nail body pipe bottom, and the nail core is equipped with rupture groove (7) including nail core pole (5) and nail core pole top (6) on the nail core pole, is equipped with nail body hole (8) that extend to the nail body head in the nail body pipe, its characterized in that: the nail body tube comprises a connecting part (9) with an inner wall pressed into the fracture groove, an upper part (10) of the nail body tube positioned above the connecting part, and a lower part (11) of the nail body tube positioned below the connecting part, wherein a gap is formed between the end surface of the nail body tube and the head of the nail core.

2. A self-setting rivet according to claim 1, characterized in that: the outer wall of the nail body tube is provided with a plurality of connecting grooves (14).

3. A self-setting rivet according to claim 2, characterized in that: the depth of the connecting grooves becomes gradually shallower from the head of the nail body to the tail end of the nail body pipe.

4. A self-setting rivet according to claim 1, characterized in that: the nail body hole is a truncated cone hole with the diameter gradually reduced from the head of the nail body.