CN213598362U

CN213598362U - High-sealing-performance riveting bolt

Info

Publication number: CN213598362U
Application number: CN202022373409.1U
Authority: CN
Inventors: 徐二辉; 余鹏飞; 安名琮
Original assignee: Borhoff China Fastener Co ltd
Current assignee: Borhoff China Fastener Co ltd; Bollhoff Wuxi Fastenings Co Ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-07-02
Anticipated expiration: 2030-10-22

Abstract

The utility model provides a high-sealing-performance riveting bolt, which comprises a riveting shell and a bolt coaxially sleeved in the riveting shell, wherein one side of the lower surface of a riveting shell flange is provided with a circle of lower grooves, and the lower grooves are internally embedded with O-shaped rings; the bolt comprises a head and a screw which are coaxially arranged integrally, the screw comprises an upper section, a lower section and a dog tail, the outer ring of the lower section is provided with threads, the outer side of the upper section is provided with threads and vertical knurling arranged along the threads, and sealant is coated outside the vertical knurling; a through hole is formed in the riveting screw shell, a screw rod penetrates through the through hole, the outer diameter of the head is larger than the diameter of the through hole, and the head is far away from the lower groove of the head. The utility model discloses have high leakproofness ability, normally assemble the back at the riveting bolt, not only can satisfy IPX 7's waterproof sealing requirement, can also satisfy and aerify 10Kpa and keep 90s not have the requirement that the bubble produced.

Description

High-sealing-performance riveting bolt

Technical Field

The utility model mainly relates to a riveting bolt field especially relates to a high leakproofness ability riveting bolt.

Background

At present, a large number of sealing rivet nuts are used on a battery pack of an automobile industry, particularly an electric automobile, and a sealing rivet stud is required to be used in places where assembly is inconvenient or large parts need to be hung, but most of the existing sealing rivet studs cannot meet the sealing requirement of IPX7, namely no air bubble is generated under the condition of inflating 10 Kpa.

Published chinese utility model patent, application No. CN201920628274.3, patent name: a sealed clinch nut, filing date: 20190505, the utility model relates to a sealed riveting nut, which comprises an integrated bolt head and a screw rod which are coaxially arranged up and down, wherein one side of the bottom of the bolt head close to the screw rod is provided with a head lower groove which surrounds the screw rod for a circle, and an O-shaped ring is embedded in the head lower groove; the screw rod extends along the axial direction and is divided into an upper section, a lower section and a dog tail from top to bottom, an annular through cavity is arranged in the upper section and is communicated with the bolt head, a large cavity which is coaxial with the annular through cavity is arranged in the lower section, one side of the large cavity close to the dog tail is in an inverted conical shape, the inner diameter of the large cavity is smaller than the inner diameter of the annular through cavity, and a threaded structure is arranged on the inner wall of the lower section; the dog tail is in an inverted round table shape. The utility model is provided with the lower groove below the bolt head and is matched with the O-shaped ring, thus effectively improving the torsion resistance of the product after rivet pulling; the O-shaped ring is sleeved on the screw rod of the riveting nut body in an interference fit manner and cannot fall off in the automatic feeding process, so that full-automatic assembly can be realized.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a high-sealing-performance riveting bolt, which comprises a riveting shell 1 and a bolt 2 coaxially sleeved in the riveting shell 1, wherein one side of the lower surface of a flange of the riveting shell 1 is provided with a circle of head lower grooves 3, and the head lower grooves 3 are internally embedded with O-shaped rings 4; the lower surface of the flange can be coated with sealant to replace the design of an O-shaped ring, but the anti-rotation effect of the design of the O-shaped ring is better;

the bolt 2 comprises a head 21 and a screw 22 which are coaxially arranged integrally, the screw 22 comprises an upper section 221, a lower section 222 and a dog tail 223, the outer ring of the lower section 222 is provided with threads, the outer side of the upper section 221 is provided with threads and a vertical knurling 224 arranged along the threads, and the vertical knurling 224 is coated with a sealant 5;

a through hole 11 is formed in the rivet nut shell 1, a screw rod 22 penetrates through the through hole 11, the outer diameter of the head portion 21 is larger than the diameter of the through hole 11, and the head portion 21 is far away from the lower head groove 3.

Preferably, the through hole 11 is provided with a large hole 111 and a small hole 112 in sequence along the direction away from the lower recess 3, the large hole 111 is matched with the lower section 222, the lower section 222 passes through the middle of the large hole 111, and the small hole 112 is matched with the upper section 221.

Preferably, the inner wall of the through hole 11 is smooth.

Preferably, the sealant 5 is a resin adhesive or a chemical adhesive.

Preferably, the horizontal cross section of the riveting screw shell 1 is circular or hexagonal or polygonal.

Preferably, the horizontal cross section of the rivet nut shell 1 is circular, and in order to increase the rotation prevention capability, a vertical knurling 224 is arranged on the vertical surface of the rivet nut shell 1.

Preferably, the riveting bolt is mounted on the counter-locking piece by means of pulling riveting and a projecting bolt 8 is obtained.

The utility model has the advantages that: the high-sealing-performance riveting bolt has high sealing performance, and can meet the waterproof sealing requirement of IPX7 and the requirement of inflating 10Kpa to keep 90s without bubble after normal assembly of the riveting bolt.

Drawings

FIG. 1 is a schematic diagram of a rivet shell according to the present invention;

fig. 2 is a perspective view of the rivet shell according to the present invention;

fig. 3 is a front view of the bolt according to the present invention;

FIG. 4 is a structural diagram of the pressure rivet after assembly;

fig. 5 is a perspective view of the pressure rivet of the present invention after assembly;

FIG. 6 is a structural diagram of the utility model after riveting by pulling rivet;

fig. 7 is a perspective view of the utility model after riveting;

in the figure, the position of the upper end of the main shaft,

1. riveting a spiral shell, 11, through holes, 111, large holes, 112 and small holes; 2. bolt, 21, head, 22, screw rod, 221, upper segment, 222, lower segment, 223, dog tail, 224, and vertical knurling;

3. a head lower groove; 4. an O-shaped ring; 5. sealing glue; 6. mounting a plate; 7. a press riveting area; 8. the bolt is protruded.

Detailed Description

In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.

As shown in fig. 1-7, the present invention comprises: the riveting nut shell 1 and the bolt 2 coaxially sleeved in the riveting nut shell 1 are provided, one side of the lower surface of a flange of the riveting nut shell 1 is provided with a circle of lower head grooves 3, and the lower head grooves 3 are embedded with O-shaped rings 4; the lower surface of the flange can be coated with sealant to replace the design of an O-shaped ring, but the anti-rotation effect of the design of the O-shaped ring is better;

the bolt 2 comprises a head 21 and a screw 22 which are coaxially arranged integrally, the screw 22 comprises an upper section 221, a lower section 222 and a dog tail 223, the dog tail 223 is only schematic and can be designed in various ways, the outer ring of the lower section 222 is provided with threads, the outer side of the upper section 221 is provided with threads and a vertical knurling 224 arranged along the threads, and the vertical knurling 224 is coated with a sealant 5;

In use, the riveting bolt is high in sealing performance, and after the riveting bolt is normally assembled, the waterproof sealing requirement of IPX7 can be met, and the requirement that inflation 10Kpa keeps 90s without bubbles can be met. The riveting stud is formed by assembling the parts 2, and the riveting stud shell and the bolt are assembled, so that on one hand, an O-shaped ring below the head of the assembled riveting bolt ensures that liquid and gas cannot leak from the middle of the riveting bolt and a plate; on the other hand, the sealant ensures that liquid and gas cannot leak from the middle of the rivet bolt shell and the bolt after the rivet bolt is assembled.

In this embodiment, it is preferable that the through hole 11 is sequentially provided with a large hole 111 and a small hole 112 along a direction away from the lower recess 3, the large hole 111 matches with the lower section 222, the lower section 222 passes through the middle of the large hole 111, and the small hole 112 matches with the upper section 221.

In this embodiment, the inner wall of the through hole 11 is preferably smooth.

Set up above-mentioned structure, it is the through-hole in the spiral shell to rivet, and rivet the inside screw thread that does not have of spiral shell, is 2 sections unthreaded holes, and the O type circle under leaning on the head after the riveting bolt assembly guarantees that liquid and gas can not leak from in the middle of riveting bolt and panel.

In the present embodiment, it is preferable that the sealant 5 is a resin adhesive or a chemical adhesive.

Set up above-mentioned material, scribble sealed glue 5 of coating on the vertical line annular knurl, after riveting spiral shell and bolt through the pressfitting assembly, the screw thread in the region under the head and the vertical line annular knurl on the screw thread have guaranteed the bolt and have riveted can not take place relative rotation and can not take place to reciprocate between the spiral shell, and liquid and gas can not follow the middle leakage of riveting spiral shell and bolt after this regional sealed glue 5 has guaranteed the riveting bolt assembly simultaneously.

In this embodiment, the rivet nut shell 1 preferably has a circular, hexagonal or polygonal horizontal cross-section.

In the present embodiment, it is preferable that if the horizontal cross section is circular, in order to increase the rotation prevention capability, the rivet nut shell 1 is provided with a vertical knurling 224 on the vertical surface.

By adopting the structure, the body shape of the riveting screw shell can be round, square, hexagonal and round with different designs such as vertical knurling and the like.

In the present embodiment, the rivet bolt is preferably mounted on the counter-locking piece by means of a rivet and the projecting bolt 8 is obtained.

By means of the structure, the riveting bolt is mounted on the workpiece of the butt lock through rivet pulling, and besides the function of riveting, a protruding bolt is reserved on the workpiece, so that the riveting bolt is conveniently connected with other subsequent workpieces.

The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.

Claims

1. The high-sealing-performance riveting bolt is characterized by comprising a riveting shell (1) and a bolt (2) coaxially sleeved in the riveting shell (1), wherein one side of the lower surface of a flange of the riveting shell (1) is provided with a circle of lower head grooves (3), and the lower head grooves (3) are embedded with O-shaped rings (4);

the bolt (2) comprises a head (21) and a screw (22) which are coaxially arranged integrally, the screw (22) comprises an upper section (221), a lower section (222) and a dog tail (223), the outer ring of the lower section (222) is provided with threads, the outer side of the upper section (221) is provided with threads and vertical knurling (224) arranged along the threads, and the vertical knurling (224) is coated with a sealant (5);

a through hole (11) is formed in the rivet nut shell (1), a screw rod (22) penetrates through the through hole (11), the outer diameter of the head (21) is larger than the diameter of the through hole (11), and the head (21) is far away from the lower head groove (3).

2. The high sealing performance rivet bolt of claim 1, wherein: the through hole (11) is sequentially provided with a large hole (111) and a small hole (112) along the direction far away from the lower groove (3), the large hole (111) is matched with the lower section (222), and the small hole (112) is matched with the upper section (221).

3. The high sealing performance rivet bolt of claim 2, wherein: the inner wall of the through hole (11) is smooth.

4. The high sealing performance rivet bolt of claim 3, wherein: the sealing glue (5) adopts resin glue or chemical adhesive.

5. The high sealing performance rivet bolt of claim 4, wherein: the horizontal cross section of the riveting screw shell (1) is circular, hexagonal or polygonal.

6. The high sealing performance rivet bolt of claim 5, wherein: the horizontal cross section of the riveting screw shell (1) is circular, and vertical knurling (224) is arranged on the vertical surface of the riveting screw shell (1).

7. The high sealing performance rivet bolt of claim 6, wherein: the riveting bolt is mounted on the counter-locking piece by means of pulling rivets and a projecting bolt (8) is obtained.