CN218509924U

CN218509924U - Sealing bolt

Info

Publication number: CN218509924U
Application number: CN202222383719.0U
Authority: CN
Inventors: 罗长泉; 陈文春; 陈锡颖
Original assignee: Zhejiang Huayuan Automobile Technology Co ltd
Current assignee: Zhejiang Huayuan Automobile Technology Co ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2023-02-21
Anticipated expiration: 2032-09-07

Abstract

The utility model discloses a sealing bolt, include bolt head, screw rod and install the rubber gasket on the screw rod, the one end that the bolt head is close to the screw rod is equipped with the arc recess, the fixed cover of rubber gasket connects in the screw rod and offsets with the bolt head to form a confined holding chamber, be equipped with sealed oil in the arc recess, the one end that the arc recess was kept away from to the rubber gasket is equipped with the arc arch, and this arc bellied position is corresponding with the arc recess, there is the through-hole of a plurality of intercommunication arc recesses along the circumference equipartition of rubber gasket in the arc arch, be equipped with annular flange on the rubber gasket, the fixed cover in both ends of annular flange has first metal gasket, second metal gasket respectively. This technical scheme simple to operate, use are convenient, and the bolt makes the sealed oil in the arc recess receive the extrusion through the cooperation with the connecting piece to fill to the position in junction space, carry out reliable sealing to the junction.

Description

Sealing bolt

Technical Field

The utility model relates to a sealing bolt.

Background

The bolt connection is one of the most common mechanical connection methods, and in order to prevent external impurities or internal fluid from penetrating and leaking from the bolt connection, the bolt needs to be sealed. Most of the existing sealing bolts are sleeved with gaskets made of nylon materials, and the sealing means often causes the gaskets to crack or deform due to the tightening torque when the bolts are not completely tightened because the strength of the materials is weak, so that the sealing effect is low, and the expected purpose cannot be achieved.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a sealing bolt to avoid appearing the phenomenon of packing ring fracture, deformation, make the junction obtain reliable sealing.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a sealing bolt, includes bolt head, screw rod and installs the rubber gasket on the screw rod, the one end that the bolt head is close to the screw rod is equipped with the arc recess, the fixed cover of rubber gasket connects in the screw rod and offsets with the bolt head to form a confined holding chamber, be equipped with sealed oil in the arc recess, the one end that the arc recess was kept away from to the rubber gasket is equipped with the arc arch, and the bellied position of this arc is corresponding with the arc recess, there is the through-hole of a plurality of intercommunication arc recesses along the circumference equipartition of rubber gasket in the arc arch, be equipped with annular flange on the rubber gasket, the both ends of annular flange have fixed cup jointed first metal gasket, second metal gasket respectively.

As a further improvement of the utility model, the bolt head is the round platform shape, the one end that the screw rod was kept away from to the bolt head is big footpath, and the one end that is close to the screw rod is the path.

As a further improvement, the side of the bolt head is embedded with a plurality of rubber rings along the axial direction of the screw rod.

As a further improvement, the one end that the screw rod was kept away from to the bolt head is equipped with regular polygon's recess along the screw rod axial, a word groove has all been seted up on the relative face in the regular polygon recess.

The utility model has the advantages that: above-mentioned technical scheme simple to operate, use are convenient, and the bolt makes the sealing oil in the arc recess receive the extrusion through the cooperation with the connecting piece to fill the position to junction space, carry out reliable sealed to the junction.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic cross-sectional view of the present invention.

Reference numerals: 1. a bolt head; 2. a screw; 3. a rubber gasket; 4. an arc-shaped groove; 5. an arc-shaped bulge; 6. a through hole; 7. an annular flange; 8. a first metal gasket; 9 a second metal gasket; 10; a rubber ring; 11. a straight slot.

Detailed Description

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

Referring to fig. 1-2, a sealing bolt includes a bolt head 1, a screw rod 2 and a rubber gasket 3 installed on the screw rod 2, one end of the bolt head 1 close to the screw rod 2 is provided with an arc groove 4, the rubber gasket 3 is fixedly sleeved on the screw rod 2 and abuts against the bolt head 1 to form a closed accommodating cavity, sealing oil is arranged in the arc groove 4 and is stored in the arc groove 4 in a gel form, and compared with the prior art, the sealing glue is more conveniently filled in a joint manually, one end of the rubber gasket 3 far away from the arc groove 4 is provided with an arc protrusion 5, the position of the arc protrusion 5 corresponds to the arc groove 4, a plurality of through holes 6 communicated with the arc groove 4 are uniformly distributed in the arc protrusion 5 along the circumferential direction of the rubber gasket, the sealing oil cannot directly flow out of the through holes 6 under the condition of no stress when the sealing oil is in a gel state, and the sealing oil is forced to flow out of the through holes 6 to realize sealing when the arc protrusion 5 is pressed into the arc groove 4. Be equipped with annular flange 7 on rubber gasket 3, the fixed cover in both ends of annular flange 7 has connect first metal gasket 8, second metal gasket 9 respectively, the one end butt bolt head 1 of first metal gasket 8, its other end butt annular flange 7, the one end butt annular flange 7 of second metal gasket 9, its other end are used for the butt connecting piece to cooperate, second metal gasket 9 is used for the complex face to be less than arc arch 5 to extrude the sealed oil in arc recess 4 when arc arch 5 cooperates with the connecting piece, with the clearance of filling the junction, the metal gasket at annular flange 7 both ends presss from both sides tightly rubber gasket 3, avoids the packing ring to appear warping or cracked condition, adopts above-mentioned technical scheme can realize carrying out reliable sealed to the junction to simple structure, it is convenient to use.

Bolt head 1 is the round platform shape, the one end that screw rod 2 was kept away from to bolt head 1 is big footpath, and the one end that is close to screw rod 2 is the path, and bolt head 1 adopts the round platform shape to carry out the conical surface cooperation with the junction, eliminates certain clearance at the fitting surface by oneself when conical surface cooperation makes bolted connection, the side of bolt head 1 inlays along 2 axial rings of screw rod and is equipped with a plurality of rubber circles 10, bolt head 1 keeps away from the one end of screw rod 2 and is equipped with regular polygon's recess along the 2 axial of screw rod, a word groove 11 has all been seted up on the relative face in the regular polygon recess, sets up a word groove 11 and avoids the regular polygon recess to be because of wearing and tearing can't take out the bolt.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a sealing bolt, its characterized in that includes bolt head, screw rod and installs the rubber gasket on the screw rod, the one end that the bolt head is close to the screw rod is equipped with the arc recess, the fixed cover of rubber gasket connects in the screw rod and offsets with the bolt head to form a confined holding chamber, be equipped with sealed oil in the arc recess, the one end that the arc recess was kept away from to the rubber gasket is equipped with the arc arch, and this arc arch's position is corresponding with the arc recess, the arc is protruding to go up to have the through-hole of a plurality of intercommunication arc recesses along the circumference equipartition of rubber gasket, be equipped with annular flange on the rubber gasket, the fixed cover in both ends of annular flange has first metal gasket, second metal gasket respectively.

2. The sealing bolt of claim 1, wherein the bolt head is frustoconical, the end of the bolt head distal from the shank being of a larger diameter and the end proximal to the shank being of a smaller diameter.

3. The seal bolt according to claim 2, wherein a plurality of rubber rings are annularly embedded in the side surface of the bolt head along the axial direction of the bolt.

4. The sealing bolt according to claim 2 or 3, wherein a regular polygonal groove is formed in one end, away from the screw rod, of the bolt head along the axial direction of the screw rod, and straight grooves are formed in opposite surfaces in the regular polygonal groove.