CN214533931U

CN214533931U - Take multistage seal structure's bolt assembly

Info

Publication number: CN214533931U
Application number: CN202120122672.5U
Authority: CN
Inventors: 高志强; 王钧; 邢林; 李俊南; 李玮; 潘泽宇
Original assignee: Anhui Wannan Electric Machine Co Ltd
Current assignee: Anhui Wannan Electric Machine Co Ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-10-29
Anticipated expiration: 2031-01-18

Abstract

A bolt assembly with a multi-stage sealing structure comprises a bolt, wherein the bolt comprises a nut and a screw rod, the inner wall of the nut is vertically provided with the coaxial screw rod, the outer wall of the screw rod is sleeved with a sealing gasket, the inner wall of the sealing gasket is embedded with a first sealing ring, the bottom surface of the sealing gasket is embedded with a second sealing ring and a third sealing ring, and the second sealing ring is positioned on the outer side of the third sealing ring; the utility model discloses a gasket is added in the middle of the nut of ordinary bolt and screw rod, digs out the seal groove on the gasket, installs the sealing washer in the seal groove. The bolt is connected with the workpiece, and the surface of the gasket and the surface of the workpiece interact to enable the sealing ring to be tightly attached. After the bolt is locked, the fastening force of the bolt is not influenced, and meanwhile, the bolt has the waterproof and oilproof functions, so that the effect of the bolt is greatly improved.

Description

Take multistage seal structure's bolt assembly

Technical Field

The utility model belongs to the technical field of the fastener, in particular to take multistage seal structure's bolt assembly.

Background

The bolt is a fastener consisting of a nut and a screw rod, is matched with the nut for use and is used for connecting two or more workpieces with through holes;

the common bolt only has a connecting function and has a sealing function, and a sealing gasket can be added between the nut and the screw. When the bolt with the sealing gasket is screwed on the workpiece, the sealing gasket is extruded by the bottom surface of the nut and two surfaces of the surface of the workpiece to form a sealing environment;

when the work piece is in the environment that water pressure is high, the gasket receives the extrusion force of work piece surface and has hydraulic effort in addition, and the long-time soaking can accelerate the ageing of gasket in aqueous moreover, and such environment initial stage is sealed still can satisfy, and along with sealed increase of filling up operating time, sealing performance can descend by a wide margin, and water can ooze.

SUMMERY OF THE UTILITY MODEL

The utility model discloses not enough to prior art exists provides a take multistage seal structure's bolt assembly, and concrete technical scheme is as follows:

the utility model provides a take multistage seal structure's bolt assembly, includes the bolt, the bolt includes nut and screw rod, the inner wall of nut is equipped with coaxial screw rod perpendicularly, the outer wall cover of screw rod is equipped with sealed the pad, the inner wall embedding of sealed pad has first sealing washer, the bottom surface embedding of sealed pad has second sealing washer, third sealing washer, the second sealing washer is located the outside of third sealing washer.

Furthermore, a connecting ring is vertically arranged at the top end of the sealing gasket, and the connecting ring is embedded into the screw cap in a threaded mode.

Further, first sealed annular has been seted up to the inner wall of sealed pad, the inside embedding of first sealed annular has first sealing washer, the upper surface and the lower surface of first sealing washer all are equipped with sealed ring gear, sealed ring gear is by outer to interior being equipped with a plurality ofly with one heart, first constant head tank with a plurality of sealed ring gear complex has been seted up to the inner wall of first sealed annular.

Further, a second sealing ring groove is formed in the bottom surface of the sealing gasket, a second sealing ring is embedded into the second sealing ring groove, an annular convex ring is arranged on the outer wall of the second sealing ring, and a second positioning groove matched with the convex ring is formed in the inner wall of the second sealing ring groove.

Furthermore, the first sealing ring groove extends transversely, and the second sealing ring groove extends longitudinally.

Further, sealed bottom surface of filling up has seted up the third sealed annular, third sealed annular tank bottom and inboard are open structure, the inside embedding of third sealed annular has the third sealing washer, the top outer wall of third sealing washer is equipped with sealed fender ring, the inner wall of third sealed annular has seted up and has kept off ring complex third constant head tank with sealed.

Further, the screw rod is of a half-thread screw rod structure.

The utility model has the advantages that: a sealing groove is dug in the gasket, three sealing rings are arranged in the sealing groove, and the third sealing ring is fully contacted with the workpiece to realize primary sealing; the second sealing ring is in contact with the workpiece and is used for forming a sealing structure on the outer side of the third sealing ring to form a secondary sealing structure, so that a medium is prevented from leaking out of the side part; the third sealing ring is in contact with the screw and is used for forming a sealing structure on the upper part of the third sealing ring to form a three-stage sealing structure so as to prevent a medium from seeping out of the top; thereby effectively improving the sealing performance of the bolt; after the bolt is locked, the fastening force of the bolt is not influenced, and meanwhile, the bolt has the waterproof and oilproof functions, so that the effect of the bolt is greatly improved.

Drawings

Fig. 1 shows a schematic structural view of a bolt assembly with a multi-stage sealing structure according to the present invention;

FIG. 2 shows an enlarged schematic view at A of FIG. 1;

FIG. 3 shows an enlarged schematic view at B of FIG. 1;

FIG. 4 shows an enlarged schematic view at C of FIG. 1;

shown in the figure: 1. a bolt; 11. a nut; 111. a locking ring groove; 12. a screw; 2. a gasket; 21. a first seal ring groove; 211. a first positioning groove; 22. a second seal ring groove; 221. a second positioning groove; 23. a third seal ring groove; 231. a third positioning groove; 3. a first seal ring; 31. a sealing ring gear; 4. a second seal ring; 41. a convex ring; 5. a third seal ring; 51. a sealing baffle ring; 6. and (7) connecting rings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, a bolt assembly with a multistage sealing structure comprises a bolt 1, wherein the bolt 1 comprises a nut 11 and a screw 12, the inner wall of the nut 11 is vertically provided with the coaxial screw 12, the outer wall of the screw 12 is sleeved with a sealing gasket 2, and the inner wall of the sealing gasket 2 is embedded with a first sealing ring 3; the first sealing ring can improve the connection sealing property of the screw and the sealing gasket;

a second sealing ring 4 and a third sealing ring 5 are embedded in the bottom surface of the sealing gasket 2, and the second sealing ring 4 is positioned on the outer side of the third sealing ring 5; the third sealing ring is fully contacted with the workpiece to realize primary sealing; the second sealing ring is in contact with the workpiece and is used for forming a sealing structure on the outer side of the third sealing ring to form a secondary sealing structure, so that a medium is prevented from leaking out of the side part; the third sealing ring is in contact with the screw and is used for forming a sealing structure on the upper part of the third sealing ring to form a three-stage sealing structure so as to prevent a medium from seeping out of the top; thereby effectively improving the sealing performance of the bolt.

As shown in fig. 1, a connecting ring 6 is vertically arranged at the top end of the sealing gasket 2, and the connecting ring 6 is embedded in a screw cap 11 in a threaded manner; the connecting ring is used for connecting the sealing gasket and the screw cap into a whole, so that the sealing gasket is prevented from loosening and deviating.

As shown in fig. 2, a first sealing ring groove 21 is formed in the inner wall of the sealing gasket 2, a first sealing ring 3 is embedded in the first sealing ring groove 21, sealing toothed rings 31 are respectively arranged on the upper surface and the lower surface of the first sealing ring 3, the sealing toothed rings 31 are concentrically arranged from outside to inside, and a first positioning groove 211 matched with the sealing toothed rings 31 is formed in the inner wall of the first sealing ring groove 21; first sealing ring groove can be realized fixed of first sealing washer with the setting of first sealing washer, and the setting of the sealed ring gear of multilayer and first constant head tank can avoid first sealing washer outwards to break away from on the one hand, and on the other hand can improve sealed effect for sealed level is higher.

As shown in fig. 3, a second sealing ring groove 22 is formed in the bottom surface of the sealing gasket 2, a second sealing ring 4 is embedded in the second sealing ring groove 22, an annular convex ring 41 is arranged on the outer wall of the second sealing ring 4, and a second positioning groove 221 matched with the convex ring 41 is formed in the inner wall of the second sealing ring groove 22; the second sealing ring groove and the second sealing ring are arranged to realize fixation of the second sealing ring, and meanwhile, the convex ring and the second positioning groove are arranged to avoid outward separation of the second sealing ring, so that the sealing effect can be improved on the other hand, and the sealing level is higher.

The first sealing ring groove 21 extends transversely, and the second sealing ring groove 22 extends longitudinally; the first seal ring groove is transversely arranged to improve the upper-layer sealing effect, and the second seal ring groove extending longitudinally can improve the side part surrounding effect.

As shown in fig. 4, a third sealing ring groove 23 is formed in the bottom surface of the sealing gasket 2, both the bottom and the inner side of the third sealing ring groove 23 are open structures, a third sealing ring 5 is embedded in the third sealing ring groove 23, a sealing baffle ring 51 is arranged on the outer wall of the top end of the third sealing ring 5, and a third positioning groove 231 matched with the sealing baffle ring 51 is formed in the inner wall of the third sealing ring groove 23; the third sealing ring groove and the third sealing ring are arranged to realize fixation of the third sealing ring, and meanwhile, the third sealing ring can be prevented from being separated from the third positioning groove in an outward mode due to the arrangement of the sealing baffle ring and the third positioning groove, the sealing effect can be improved on the other hand, and the sealing level is higher.

The screw 12 is of a half-thread screw structure.

The utility model discloses when implementing:

embedding each sealing ring into the sealing gasket 2, embedding the first sealing ring 3 into the first sealing ring groove 21, clamping and embedding the first sealing ring 3 into the first sealing ring groove 21, and embedding the sealing toothed ring 31 on the outer wall of the first sealing ring 3 into the first positioning groove 211; the second sealing ring 4 is embedded into the second sealing ring groove 22, and the convex ring 41 is embedded into the second positioning groove 221; the third sealing ring 5 is embedded into the third sealing ring groove 23, and the sealing baffle ring 51 is embedded into the third positioning groove 231;

when assembling the bolt, the sealing gasket 2 is screwed outside the screw 12, and the connecting ring 6 is screwed into the locking ring groove 111 in the nut 11;

when the sealing structure is assembled with a workpiece, the bolt 1 with a half-thread structure is screwed into the workpiece, the third sealing ring 5 and the second sealing ring 4 are tightly attached to the surface of the workpiece, and the third sealing ring 5, the second sealing ring 4 and the first sealing ring 3 form a complete sealing structure outside the joint.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a take multistage seal structure's bolt assembly which characterized in that: including bolt (1), bolt (1) includes nut (11) and screw rod (12), the inner wall of nut (11) is equipped with coaxial screw rod (12) perpendicularly, the outer wall cover of screw rod (12) is equipped with sealed pad (2), the inner wall embedding of sealed pad (2) has first sealing washer (3), the bottom surface embedding of sealed pad (2) has second sealing washer (4), third sealing washer (5), second sealing washer (4) are located the outside of third sealing washer (5).

2. The bolt assembly with the multistage sealing structure according to claim 1, wherein: the top end of the sealing gasket (2) is vertically provided with a connecting ring (6), and the connecting ring (6) is embedded into the screw cap (11) in a threaded manner.

3. The bolt assembly with the multistage sealing structure according to claim 1, wherein: first sealed annular (21) have been seted up to the inner wall of sealed pad (2), the inside embedding of first sealed annular (21) has first sealing washer (3), the upper surface and the lower surface of first sealing washer (3) all are equipped with sealed ring gear (31), sealed ring gear (31) are by outer to interior concentric a plurality of being equipped with, the inner wall of first sealed annular (21) seted up with a plurality of sealed ring gear (31) complex first constant head tank (211).

4. The bolt assembly with a multistage sealing structure according to claim 3, wherein: second seal ring groove (22) have been seted up to the bottom surface of sealed pad (2), the inside embedding of second seal ring groove (22) has second sealing washer (4), the outer wall of second sealing washer (4) is equipped with annular bulge loop (41), the inner wall of second seal ring groove (22) seted up with bulge loop (41) complex second constant head tank (221).

5. The bolt assembly with the multistage sealing structure according to claim 4, wherein: the first sealing ring groove (21) extends transversely, and the second sealing ring groove (22) extends longitudinally.

6. The bolt assembly with the multistage sealing structure according to claim 1, wherein: third sealed annular groove (23) have been seted up to the bottom surface of sealed pad (2), third sealed annular groove (23) bottom and inboard are open structure, the inside embedding of third sealed annular groove (23) has third sealing washer (5), the top outer wall of third sealing washer (5) is equipped with sealed fender ring (51), the inner wall of third sealed annular groove (23) is seted up and is kept off ring (51) complex third constant head tank (231) with sealed.

7. The bolt assembly with the multistage sealing structure according to claim 1, wherein: the screw (12) is of a half-thread screw structure.