CN210240239U

CN210240239U - Hollow rivet

Info

Publication number: CN210240239U
Application number: CN201921303302.0U
Authority: CN
Inventors: Zhichun Zhou; 周志纯; Biao Wu; 吴飚; Jian Huang; 黄健
Original assignee: Changde Bolt Hardware Products Co ltd
Current assignee: Changde Bolt Hardware Products Co ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-04-03
Anticipated expiration: 2029-08-13

Abstract

The utility model discloses a hollow rivet, including the nail cap and the nail pole, the nail pole includes fixed part and kink, and the one end of fixed part is located to nail cap integrated into one piece, and the other end of fixed part is located to kink integrated into one piece, and the kink runs through along the center pin and is equipped with the centre bore, its characterized in that division: the periphery of the fixing part is bonded with a sealing sleeve, one end of the sealing sleeve, which is close to the nail cap, protrudes towards the periphery to form a sealing gasket, and the sealing gasket is bonded on the nail cap. The hollow rivet is simple in structure, convenient to install and high in sealing performance.

Description

Hollow rivet

Technical Field

The utility model belongs to the technical field of the rivet, concretely relates to hollow rivet.

Background

When the plate is combined with the plate, the plate is usually riveted at the joint of the plate and the plate through a rivet, the conventional rivet usually has no sealing function, and when the plate is used in some special fields, the phenomenon of air leakage and water leakage is easily caused at the joint of the rivet, so that the high connection requirement on sealing is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem, provide a simple structure, simple to operate and have the hollow rivet of leakproofness.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a hollow rivet, includes nail cap and nail pole, the nail pole includes fixed part and kink, the one end of fixed part is located to nail cap integrated into one piece, the other end of fixed part is located to kink integrated into one piece, the kink runs through along the center pin and is equipped with the centre bore, it has the seal cover to bond in the periphery of fixed part, the seal cover is close to the one end of nail cap and is formed with seal ring to the periphery protrusion, seal ring bonds on the nail cap.

As a further improvement of the above technical solution:

and a pressure head is inserted into the inlet end of the central hole.

The pressure head includes integrated into one piece's pressure portion and anticreep portion, anticreep portion is cylindricly, and the periphery is equipped with anticreep groove, the external diameter of pressure portion is greater than the external diameter of seal cover, anticreep portion inserts and locates in the centre bore, in the centre bore extends into the fixed part, forms the anticreep blind hole that is used for the solid anticreep portion of cover in the fixed part.

A first guiding conical surface is arranged between the pressing part and the anti-falling part.

And the inner edge and the outer edge of one end of the bent part, which is far away from the fixed part, are respectively provided with a second guiding conical surface.

The bending part is provided with six bending grooves which penetrate through the bending part along the axial direction around the central shaft array.

The cross section of the bending groove is V-shaped, and the groove opening of the bending groove is arranged towards the central shaft of the central hole.

And a baffle ring is axially formed on the edge of one end of the nail cap, which faces the fixing part, and the height of the baffle ring is lower than that of the sealing gasket.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses it has the seal cover to bond in the periphery of the fixed part of hollow rivet, and the seal cover can be longer than the fixed part for the kink compresses tightly the seal cover after bending into shape, and during the use, the seal cover overlaps in the butt joint hole of plate, seals the butt joint hole of plate, its simple structure, simple to operate.

Drawings

Fig. 1 is a schematic structural view of the hollow rivet of the present invention.

Fig. 2 is a schematic bottom view of the hollow rivet of the present invention (without head).

FIG. 3 is a schematic structural view of the hollow rivet in use.

The reference numerals in the figures denote:

1. a nail cap; 11. a baffle ring; 2. a nail rod; 21. a fixed part; 22. a bending section; 23. a second guiding conical surface; 24. bending the groove; 3. a central bore; 4. sealing sleeves; 41. a sealing gasket; 5. a pressure head; 51. a pressing part; 52. an anti-drop part; 53. a drop-proof groove; 54. a first guiding conical surface; 6. an anti-drop blind hole; 7. a plate member; 71. and (4) butting holes.

Detailed Description

The technical solution of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

As shown in fig. 1 and 2, the hollow rivet of the present embodiment includes a nut 1 and a nut 2, the nut 2 includes a fixing portion 21 and a bending portion 22, the nut 1 is integrally formed at one end of the fixing portion 21, the bending portion 22 is integrally formed at the other end of the fixing portion 21, the bending portion 22 penetrates through a central hole 3 along a central axis, a sealing sleeve 4 is bonded to the periphery of the fixing portion 21, a sealing washer 41 is formed at one end of the sealing sleeve 4 close to the nut 1 and protrudes towards the periphery, and the sealing washer 41 is bonded to the nut 1. Specifically, the sealing sleeve 4 is bonded to the periphery of the fixing portion 21, the sealing sleeve 4 is longer than the fixing portion 21, the sealing sleeve 4 is pressed after the bending portion 22 is bent, and when the sealing device is used, the sealing sleeve 4 is sleeved in the butt joint hole 71 of the plate 7 to seal the butt joint hole 71 of the plate 7.

In this embodiment, the inlet end of the central hole 3 is inserted with a pressing head 5, which facilitates bending of the bending portion 22.

In this embodiment, the pressing head 5 includes a pressing portion 51 and an anti-separation portion 52 that are integrally formed, the anti-separation portion 52 is cylindrical, and an anti-separation groove 53 is formed in the periphery, the outer diameter of the pressing portion 51 is greater than the outer diameter of the sealing sleeve 4, it is ensured that the pressing portion 51 can compress the inner end of the bent portion 22, so that the inner end of the bent portion 22 can compress the sealing sleeve 4, the anti-separation portion 52 is inserted into the central hole 3, the central hole 3 extends into the fixing portion 21, and an anti-separation blind hole 6 for sleeving the anti-separation portion 52 is formed in the fixing portion 21. In the process that the pressing head 5 presses the bent portion 22, the pressing portion 51 is used for pressing the bent portion 22 to be bent and deformed, and the falling-off preventing end 32 is used for preventing the pressing head 5 from falling off.

In this embodiment, a first guide tapered surface 54 is provided between the pressing portion 51 and the retaining portion 52. The first guiding tapered surface 54 is used for guiding bending deformation of the bent portion 22, the bending degree of the bent portion 22 is different due to different tapered surfaces of the first guiding tapered surface 54, and the taper angle of the tapered surface of the first guiding tapered surface 54 is preferably 45 degrees, so that the bent portion 22 is smoothly deformed and has high stability after deformation.

In this embodiment, the inner and outer edges of the end of the bending portion 22 away from the fixing portion 21 are respectively provided with a second guiding tapered surface 23, the second guiding tapered surface 23 of the inner edge facilitates the insertion of the pressing head 5 into the central hole 3, and the second guiding tapered surface 23 of the outer edge facilitates the insertion of the hollow rivet into the butt-joint hole 71.

In this embodiment, the bent portion 22 has six bending grooves 24 penetrating in the axial direction around the central axis, so that the bent portion 22 is smoothly bent and deformed and has a stable shape after being deformed.

In this embodiment, the cross section of the bending groove 24 is V-shaped, and the groove opening of the bending groove 24 is disposed toward the central axis of the central hole 3, so that the bending portion 22 can be conveniently divided to form bending in all directions.

In this embodiment, the edge of one end of the nut 1 facing the fixing portion 21 is axially formed with a blocking ring 11, the height of the blocking ring 11 is lower than that of the sealing gasket 41, the blocking ring 11 can radially block the sealing gasket 41, and the sealing gasket 41 is not axially compressed by the plate 7.

As shown in fig. 3, the utility model discloses the structural schematic diagram of hollow rivet user state during the use, can take off pressure head 5 earlier, treats the butt joint hole 71 butt joint of plate 7, and pressure head 5 is installed again after hollow rivet inserts the butt joint hole 71 of butt joint, then hits the pressure head 5 of beating, and it promotes kink 22 buckling deformation in order to compress tightly plate 7 to compress tightly seal ring 41 and seal cover 4 to seal up the butt joint hole 71 under the inflation deformation to beat seal ring 41 and seal cover 4.

Claims

1. The utility model provides a hollow rivet, includes nail cap (1) and nail pole (2), nail pole (2) are including fixed part (21) and kink (22), the one end of fixed part (21) is located in nail cap (1) integrated into one piece, the other end of fixed part (21) is located in kink (22) integrated into one piece, kink (22) run through along the center pin and are equipped with centre bore (3), its characterized in that: the nail cap is characterized in that a sealing sleeve (4) is bonded on the periphery of the fixing portion (21), one end, close to the nail cap (1), of the sealing sleeve (4) protrudes towards the periphery to form a sealing gasket (41), and the sealing gasket (41) is bonded on the nail cap (1).

2. A hollow rivet according to claim 1, wherein: and a pressure head (5) is inserted into the inlet end of the central hole (3).

3. A hollow rivet according to claim 2, wherein: the pressure head (5) comprises a pressure applying part (51) and an anti-falling part (52) which are integrally formed, wherein the anti-falling part (52) is cylindrical, and an anti-falling groove (53) is formed in the periphery of the anti-falling part, the outer diameter of the pressure applying part (51) is larger than that of a sealing sleeve (4), the anti-falling part (52) is inserted into a center hole (3), the center hole (3) extends into a fixing part (21), and an anti-falling blind hole (6) for sleeving the anti-falling part (52) is formed in the fixing part (21).

4. A hollow rivet according to claim 3, wherein: a first guide conical surface (54) is arranged between the pressing part (51) and the anti-drop part (52).

5. A hollow rivet according to claim 3, wherein: and the inner edge and the outer edge of one end of the bending part (22) far away from the fixing part (21) are respectively provided with a second guiding conical surface (23).

6. A hollow rivet according to claim 5, in which: the bending part (22) is provided with six bending grooves (24) which penetrate through the bending part along the axial direction around the central shaft array.

7. A hollow rivet according to claim 6, in which: the cross section of the bending groove (24) is V-shaped, and the groove opening of the bending groove (24) is arranged towards the central shaft of the central hole (3).

8. A hollow rivet according to any of claims 1 to 7, characterised in that: the edge of one end, facing the fixing portion (21), of the nail cap (1) is axially provided with a baffle ring (11), and the height of the baffle ring (11) is lower than that of the sealing washer (41).