CN213711568U

CN213711568U - Combined sealing type rivet nut

Info

Publication number: CN213711568U
Application number: CN202022555594.6U
Authority: CN
Inventors: 张计划
Original assignee: Guangzhou Kemeilong Hardware Co ltd
Current assignee: Guangzhou Kemeilong Hardware Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-07-16
Anticipated expiration: 2030-11-06

Abstract

The utility model relates to a nut is riveted to combination sealed, including riveting nut body and end cover, rivet the nut body including fender ring, deformation portion and the screw thread portion that connects gradually, the end cover is established outside the screw thread portion, in order to realize with the open end of screw thread portion seals. After the rivet nut is riveted on the shell of the heat preservation equipment, the foamed plastic injected into the shell cannot flow into the threaded hole, so that the situation that the threaded hole is blocked is avoided. After the foaming plastic is injected and foamed, the bolt can be easily screwed into the rivet nut, and the screwed bolt can directly burst the end cover and extend into the interior of the foaming material to be connected with other structures after jacking the end cover.

Description

Combined sealing type rivet nut

Technical Field

The utility model belongs to the technical field of the metal part and specifically relates to a nut is riveted to combination sealed.

Background

The rivet nut is also called as rivet nut, it is mainly used in the fastening field of manufacturing industries of various metal plates, pipes, etc., and is widely used in the assembly of electromechanical and light industrial products such as automobile, aviation, railway, refrigeration, elevator, switch, instrument, furniture, decoration, etc., and is developed for overcoming the defects that the welding nut of metal sheet and thin pipe is easy to melt, the tapping of internal thread is easy to slide, etc., it does not need tapping internal thread, does not need welding nut, has high riveting fastening efficiency, and is convenient to use.

In some use scenes, after riveting the rivet nut, a filling material may need to be injected into the sealed plate, for example, on a heat preservation device, after riveting the rivet nut on a shell of the heat preservation device, a foaming plastic (polyurethane) for heat preservation needs to be injected into the shell, and the injected polyurethane may flow into a threaded hole of the rivet nut to seal the thread, thereby affecting the installation and passing of the bolt in the later period.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a combination sealed rivet nut, can be used for avoiding foamed plastic to flow into threaded hole and influence the installation of later stage bolt and pass through.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a nut is riveted to combination sealed, is including riveting nut body and end cover, rivet nut body including the fender ring, deformation portion and the screw thread portion that connect gradually, the end cover is established outside the screw thread portion, in order to realize with the open end of screw thread portion seals.

Specifically, the end cover is a plastic cover or a soft metal cover.

Further, the soft metal cover is a tin cover or an aluminum cover.

Specifically, the external diameter of the portion that screw thread portion with the end cover is connected is than the external diameter of deformation portion is little, will the end cover is established back on riveting the nut body, the outer wall of end cover with the outer wall parallel and level of deformation portion.

Specifically, a concave annular cutting groove is formed in the outer end face, away from the threaded portion, of the end cover.

Specifically, keep off the ring orientation one side of deformation portion is opened there is the sealing ring mounting groove, install rubber seal ring on the sealing ring mounting groove, rubber seal ring pastes and fixes on the sealing ring mounting groove.

The utility model discloses following beneficial effect has: the utility model discloses a combination closed rivet nut, including rivet nut body and end cover, the end cover is established outside screw thread portion and is used for sealing the open end of screw thread portion. After the rivet nut is riveted on the shell of the heat preservation equipment, the foamed plastic injected into the shell cannot flow into the threaded hole, so that the situation that the threaded hole is blocked is avoided. After the foaming plastic is injected and foamed, the bolt can be easily screwed into the rivet nut, and the screwed bolt can directly burst the end cover and extend into the interior of the foaming material to be connected with other structures after jacking the end cover.

Drawings

Fig. 1 is a schematic structural view of the combined sealing type rivet nut of the present invention;

fig. 2 is a schematic cross-sectional view of the combined sealing type rivet nut of the present invention.

The specific structure in the figure illustrates that: the rivet nut comprises a rivet nut body 1, a retaining ring 11, a deformation part 12, a thread part 13, a sealing ring mounting groove 14, an end cover 2, an annular cutting groove 21 and a rubber sealing ring 3.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments shown in the drawings.

Referring to fig. 1-2, a combination sealed rivet nut, includes rivet nut body 1 and end cover 2, rivet nut body 1 is including fender ring 11, deformation portion 12 and the screw portion 13 that connects gradually, end cover 2 cover is established outside screw portion 13, in order to realize with the open end seal of screw portion 13.

When riveting, the end cap 2 is covered on the rivet nut body 1, the screw portion 13 of the rivet nut body 1 is inserted into the pre-opened through hole, and the screw portion 13 is pulled to compress and expand the deformation portion 12, thereby realizing the riveting of the rivet nut body 1.

Specifically, the end cap 2 is a plastic cap or a soft metal cap. By adopting the plastic cover or the soft metal cover, after the bolt is screwed in, the bolt can easily burst the plastic cover or the soft metal cover with softer texture.

Further, the soft metal cover is a tin cover or an aluminum cover.

Specifically, the outer diameter of the portion where the threaded portion 13 is connected with the end cover 2 is smaller than the outer diameter of the deformation portion 12, so that after the end cover 2 is sleeved on the rivet nut body 1, the outer wall of the end cover 2 is flush with the outer wall of the deformation portion 12. Namely, the cover is provided with the end cover 2 which can not protrude out of the side wall of the rivet nut body 1, and the hole diameter of the riveted device needing to be opened is not required to be increased.

Specifically, the outer end surface of the end cap 2 away from the threaded portion 13 is provided with a recessed annular cutting groove 21. The end cap 2 is relatively weak at the annular slot 21, whereby the bolt can easily burst the end cap 2 from the inside of the end cap 2.

Specifically, keep off ring 11 orientation one side of deformation portion 12 is opened there is sealing ring mounting groove 14, install rubber seal ring 3 on the sealing ring mounting groove 14, rubber seal ring 3 pastes and fixes on the sealing ring mounting groove 14. The rubber sealing ring 3 is arranged, so that the sealing performance between the rivet nut body 1 and the connected piece can be guaranteed after riveting, and the leakage of internal materials is avoided.

The above mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby, that is, all the simple equivalent changes and modifications made according to the claims and the description of the present invention are still included in the scope of the present invention.

Claims

1. The utility model provides a combination sealed rivet nut which characterized in that: including riveting nut body and end cover, rivet the nut body including the fender ring, deformation portion and the screw thread portion that connect gradually, the end cover is established outside screw thread portion, in order to realize with the open end of screw thread portion seals.

2. The composite sealed rivet nut of claim 1, wherein: the end cover is a plastic cover or a soft metal cover.

3. The composite sealed rivet nut of claim 2, wherein: the soft metal cover is a tin cover or an aluminum cover.

4. The composite sealed rivet nut of claim 1, wherein: the outer diameter of the part, connected with the end cover, of the threaded part is smaller than that of the deformation part, and after the end cover is sleeved on the rivet nut body, the outer wall of the end cover is flush with the outer wall of the deformation part.

5. The composite sealed rivet nut of claim 1, wherein: and a concave annular cutting groove is formed on the outer end face, far away from the threaded part, of the end cover.

6. The composite sealed rivet nut of claim 1, wherein: keep off the ring orientation one side of deformation portion is opened there is the sealing ring mounting groove, install rubber seal ring on the sealing ring mounting groove, rubber seal ring pastes and fixes on the sealing ring mounting groove.