CN219432431U

CN219432431U - Self-plugging rivet

Info

Publication number: CN219432431U
Application number: CN202320222842.6U
Authority: CN
Inventors: 涂隆锋
Original assignee: Wenzhou Huahan Automobile Fastener Co ltd
Current assignee: Wenzhou Huahan Automobile Fastener Co ltd
Priority date: 2023-02-15
Filing date: 2023-02-15
Publication date: 2023-07-28
Anticipated expiration: 2033-02-15

Abstract

The utility model provides a self-plugging rivet which comprises a rivet rod, a rivet cap, a rivet tube and an end cap, wherein the rivet tube is sleeved on the rivet rod, a concave annular deformation groove is formed in one side face of the end cap, facing the rivet cap, of the end cap, a convex limit column is arranged on one side face of the end cap, facing the rivet cap, of the end cap, the self-plugging rivet further comprises an annular sealing gasket, the sealing gasket is sleeved on the rivet tube, a connecting hole which is correspondingly connected with the limit column is formed in the sealing gasket, a convex annular sealing part is arranged on one side face, facing the rivet cap, of the sealing gasket, and the sealing part is correspondingly arranged in the deformation groove. The sealing gasket is arranged on the side of the end cap to play a sealing role, the limiting column is arranged to control deformation of the sealing gasket, the deformation groove is arranged to receive the deformation of the sealing gasket when the sealing gasket is compressed, and the convex sealing part is arranged to enhance sealing performance, so that good sealing performance can be provided, and the sealing gasket cannot be crushed during riveting.

Description

Self-plugging rivet

Technical Field

The utility model relates to the technical field of hardware fasteners, in particular to a self-plugging rivet.

Background

The self-plugging rivet is a rivet for single-sided riveting, and needs to be connected by using a special rivet pulling gun, and when the rivet pulling operation is carried out, a rivet core is pulled by using the rivet pulling gun, so that a rivet body is expanded, and the riveting effect is achieved. The blind rivet mainly comprises a nail rod 01, a nail cap 02, a rivet pipe 03 and an end cap 04, as shown in figure 1.

After riveting, the end cap 04 directly contacts with the riveted object, a gap exists at the contact position, and sealing is difficult to achieve, so that a sealing gasket is added to assist sealing, but when the sealing gasket is in riveting operation, the sealing gasket is deformed and broken due to too large pulling force, so that the sealing effect is poor.

To the above technical problem, in the prior art, a novel blind rivet is disclosed in the patent No. 2022209979991, which improves the sealing performance in an auxiliary manner through an adhesive layer.

Disclosure of Invention

In order to solve the problems pointed out in the background art, the utility model provides a blind rivet which is different from the prior art so as to improve the sealing performance of the rivet.

The technical scheme of the utility model is realized as follows:

the self-plugging rivet comprises a rivet rod, a rivet cap, a rivet tube and an end cap, wherein the rivet tube is sleeved on the rivet rod, a concave annular deformation groove is formed in one side face of the end cap, facing the rivet cap, of the end cap, a protruding limit column is arranged on one side face of the end cap, facing the rivet cap, of the end cap, the self-plugging rivet further comprises an annular sealing gasket, the sealing gasket is sleeved on the rivet tube, a connecting hole corresponding to the limit column is formed in the sealing gasket, a protruding annular sealing portion is arranged on one side face, facing the rivet cap, of the sealing gasket, and the sealing portion corresponds to the deformation groove.

The utility model further provides that a plurality of limit posts are arranged and are uniformly distributed in the circumferential direction of the end cap.

The utility model is further characterized in that a concave annular deformation guide groove is arranged on one side face, facing the end cap, of the sealing gasket, and the deformation guide groove is arranged corresponding to the deformation groove.

The utility model further provides that the thickness of the sealing gasket is greater than the length of the limit post.

The utility model further provides that the sealing gasket is made of a rubber material.

By adopting the technical scheme, the utility model has the beneficial effects that:

according to the self-plugging rivet provided by the utility model, the sealing gasket is arranged at the side of the end cap to play a sealing role, the limiting column is arranged to control the deformation amount of the sealing gasket, the deformation groove is arranged to receive the deformation amount of the sealing gasket when the sealing gasket is compressed, and the convex sealing part is arranged to enhance the sealing performance, so that good sealing performance can be provided, and the sealing gasket cannot be crushed during riveting.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic structural view of a conventional blind rivet.

Fig. 2 is a schematic structural view of the blind rivet according to the present utility model.

Fig. 3 is a schematic structural view of the sealing gasket of the present utility model.

The reference numerals in the drawings indicate: the nail comprises a nail rod 1, a nail cap 2, a riveting tube 3, an end cap 4, a deformation groove 5, a limit post 6, a sealing gasket 7, a connecting hole 8, a sealing part 9 and a deformation guide groove 10.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is illustrated below with reference to fig. 1-3:

example 1: a self-plugging rivet comprises a rivet rod 1, a rivet cap 2, a rivet pipe 3 and an end cap 4, wherein the rivet pipe 3 is sleeved on the rivet rod 1. The above is the structure of the existing blind rivet, and the following is an improved structure of the present application.

The end cap 4 is equipped with indent, annular deformation groove 5 on the side towards the nut 2, deformation groove 5 and the coaxial setting of end cap 4 are equipped with convex spacing post 6 on the side towards the nut 2 of end cap 4, and spacing post 6 is cylindrical structure, and spacing post 6 is equipped with a plurality ofly to evenly distributed in the circumference of end cap 4.

Still include annular sealing washer 7, sealing washer 7 is made by rubber materials, and sealing washer 7 cover is established on riveting pipe 3, is equipped with the connecting hole 8 that corresponds to be connected with spacing post 6 on the sealing washer 7, and sealing washer 7 pastes and establishes on end cap 4, and spacing post 6 is connected in connecting hole 8, is equipped with convex, annular sealing part 9 on the sealing washer 7 towards on the side of nut 2, and sealing part 9 corresponds deformation groove 5 setting. When the rivet is subjected to loose core riveting, the end cap 4 and the sealing gasket 7 are tightly pressed on a riveted object, the sealing gasket 7 is pressed to deform until the limit column 6 is propped against the riveted object, so that the deformation amount of the sealing gasket 7 is controlled to be in a bearable elastic deformation range and not to be crushed, the sealing effect can be enhanced by the convex sealing part 9, and meanwhile, the deformation generated by the sealing part 9 can enter the deformation groove 5 on the end cap 4, which is equivalent to leaving a deformation space, and the influence on the sealing effect due to difficult release of the deformation is avoided.

The sealing washer 7 is provided with an inward concave annular deformation guide groove 10 on one side surface facing the end cap 4, the deformation guide groove 10 is arranged corresponding to the deformation groove 5, and the deformation guide groove 10 is equivalent to a notch, so that the deformation direction is guided at the notch.

The thickness of the sealing gasket 7 is greater than the length of the limit post 6. The thickness of the sealing gasket 7 is 2-7mm, preferably 4mm. The length of the limit post 6 is 1-5mm, preferably 2mm.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the utility model.

Claims

1. The utility model provides a self-plugging rivet, includes nail pole, nail cap, rivets pipe, end cap, rivets the pipe and cup joints on the nail pole, its characterized in that: the nut is characterized in that a concave annular deformation groove is formed in one side face of the end cap, facing the nut, of the end cap, a protruding limiting column is arranged on one side face of the end cap, facing the nut, of the end cap, the nut further comprises an annular sealing gasket, the sealing gasket is sleeved on the rivet pipe, a connecting hole corresponding to the limiting column is formed in the sealing gasket, a protruding annular sealing portion is arranged on one side face, facing the nut, of the sealing gasket, and the sealing portion corresponds to the deformation groove.

2. A blind rivet according to claim 1, wherein: the limiting columns are arranged in a plurality of mode and are uniformly distributed in the circumferential direction of the end cap.

3. A blind rivet according to claim 1, wherein: the sealing gasket is provided with a concave annular deformation guide groove on one side face facing the end cap, and the deformation guide groove is arranged corresponding to the deformation groove.

4. A blind rivet according to claim 1, wherein: the thickness of the sealing gasket is larger than the length of the limit column.

5. A blind rivet according to claim 1, wherein: the sealing gasket is made of rubber materials.