CN218471682U

CN218471682U - Insulating sleeve for high-temperature-resistant and high-precision requirements of bolt

Info

Publication number: CN218471682U
Application number: CN202220828414.3U
Authority: CN
Inventors: 程成; 何立志; 胡桨
Original assignee: FUSHENG INSULATION MATERIALS Ltd
Current assignee: FUSHENG INSULATION MATERIALS Ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2023-02-10
Anticipated expiration: 2032-04-12

Abstract

The utility model relates to the field of sleeves, in particular to an insulating sleeve for high temperature resistance and high precision requirements of bolts, which comprises an outer sleeve, wherein a bolt body and a connecting assembly are arranged inside the outer sleeve, and the connecting assembly for connecting the outer sleeve with the bolt body is arranged between the outer sleeve and the bolt body; when bolt body gets into the sealed tube inside, can remove to the inside of fixed pipe through screw promotion sealed tube, fixed pipe can extrude the sealed tube when removing, let the sealed tube extrude the bolt body once more, when carrying on spacingly to the bolt body, sealed tube and this body coupling's of bolt compactness has also been strengthened, make the further improvement of leakproofness, interior sleeve pipe is formed by the winding of multilayer pure spinning fibre paper, can be after bolt and outer tube connection, provide insulating effect between the two, prevent that inside electric current from conducting to the outside, cause the potential safety hazard.

Description

Insulating sleeve for high-temperature-resistant and high-precision requirements of bolt

Technical Field

The utility model relates to a sleeve pipe field, very much relate to an insulation support that is used for high temperature resistant, the high accuracy requirement of bolt.

Background

The bolt insulating sleeve is usually installed on the outer side of the bolt, and is used as an adapter of the bolt or a connector with other bolts, but when the existing insulating sleeve is connected with the bolt, the bolt is usually connected with the insulating sleeve through threads, wherein a certain gap exists between the threads, so that the sealing performance between the insulating sleeve and the bolt is poor.

Therefore, an insulating sleeve for a bolt, which is resistant to high temperature and requires high accuracy, is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a following technical scheme realizes above-mentioned purpose, an insulation support that is used for high temperature resistant, the high accuracy requirement of bolt, including the outer tube, the inside of outer tube is provided with the bolt body, coupling assembling for get up outer tube and this body coupling of bolt coupling assembling sets up between outer tube and bolt body.

Preferably, both sides of the surface of the outer sleeve are arranged in an inclined plane shape, and both sides of the outer sleeve are connected with gaskets.

Preferably, coupling assembling is including installing at the inside interior sleeve pipe of overcoat, interior sheathed tube internally connected with two spacing pipes, two the inside of spacing pipe all is provided with the sealed tube, two the inside homogeneous body of sealed tube is connected with the lug, the lug sets up to the screw thread shape, and the sealed tube passes through lug and bolt body threaded connection.

Preferably, two fixed pipe is all installed to the inside of spacing pipe, two the cross-section of fixed pipe all sets up to the rectangle form, the outer wall of sealed tube all with correspond the inner wall of fixed pipe contacts, two the sealed tube is sliding mounting respectively two the inside of fixed pipe.

Preferably, the inner sleeve is made of pure spun rayon fiber paper, and the length of the inner sleeve is the same as that of the outer sleeve.

Preferably, the inner sleeve is positioned between the two gaskets, and two ends of the inner sleeve are connected with the corresponding gaskets.

Preferably, the cross section of the limiting pipe is rectangular, and the outer wall of the fixing pipe is matched with the inner wall of the limiting pipe.

The utility model has the advantages that:

1. by arranging the connecting assembly, when the bolt body enters the sealing pipe, the sealing pipe can be pushed to move towards the inside of the fixing pipe through threads, the fixing pipe can extrude the sealing pipe when moving, the sealing pipe can extrude the bolt body again, the tightness of the connection between the sealing pipe and the bolt body is enhanced while the bolt body is limited, and the sealing performance is further improved;

2. through setting up the inner tube cover, the interior sleeve pipe is twined compound by multilayer pure spinning lun cellophane paper and forms, has intensity height, temperature resistant, high insulating characteristic, can be applicable to more service environment, can also provide insulating effect between the two behind bolt and outer tube connection, prevents that inside electric current from conducting the outside, causes the potential safety hazard.

Drawings

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

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

fig. 3 is a schematic view of the connection assembly structure of the present invention;

fig. 4 is a schematic diagram of the structure of the limiting pipe of the present invention.

In the figure: 1. an outer sleeve; 2. a bolt body; 3. a connecting assembly; 301. an inner sleeve; 302. a limiting pipe; 303. sealing the tube; 304. fixing the tube; 305. a gasket; 306. and (6) a bump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the specific implementation: as shown in fig. 1-4, an insulating sleeve for a bolt with high temperature resistance and high precision requirement, includes an outer sleeve 1, a bolt body 2 is disposed inside the outer sleeve 1, a connection assembly 3 is disposed between the outer sleeve 1 and the bolt body 2, the connection assembly 3 is used for connecting the outer sleeve 1 and the bolt body 2, both sides of the surface of the outer sleeve 1 are all set to be inclined planes, both sides of the outer sleeve 1 are connected with a gasket 305, the inclined planes disposed on both sides of the surface of the outer sleeve 1 gradually decrease outward for the volume, which can facilitate the connection of the outer sleeve 1 and other pipelines, and when connecting, the outer wall of the outer sleeve 1 can be clamped with other pipelines for preliminary fixation, which is more convenient for connection, when the bolt body 2 is connected with the outer sleeve 1, the gasket 305 can be tightly abutted against the nut of the bolt body 2, and can also enable the outer sleeve 1 and the bolt body 2 to be connected in a sealing manner.

As shown in fig. 2-4, the connection assembly 3 includes an inner sleeve 301 installed inside an outer sleeve 1, the inner sleeve 301 is connected with two limit tubes 302, sealing tubes 303 are disposed inside the two limit tubes 302, the inner portions of the two sealing tubes 303 are connected with bumps 306, the bumps 306 are in a thread shape, the sealing tubes 303 are in threaded connection with the bolt body 2 through the bumps 306, fixed tubes 304 are installed inside the two limit tubes 302, the cross sections of the two fixed tubes 304 are both in a rectangular shape, the outer wall of each sealing tube 303 is in contact with the inner wall of the corresponding fixed tube 304, the two sealing tubes 303 are respectively slidably installed inside the two fixed tubes 304, the cross section of each limit tube 302 is in a rectangular shape, the outer wall of each fixed tube 304 is adapted to the inner wall of the limit tube 302, the sealing tube 303 is a fluoro rubber seal ring, the threads of the bolt body 2 are in mirror image with the bumps 306 on the inner wall of the sealing tube 303, when the bolt body 2 enters the sealing tube 303, the sealing tube 303 can be pushed to move towards the inside of the fixed tube 304 by the threads, the sealing tube 303 can extrude the sealing tube 303 again, the bolt body can further extrude the limit tube 302, and the bolt body 302, and the limit tube 302 can further improve the tightness when the bolt body is extruded, and the bolt body is further extruded, and the limit tube 302 is extruded.

As shown in fig. 2, the inner sleeve 301 is made of pure spun nylon fiber paper, the lengths of the inner sleeve 301 and the outer sleeve 1 are the same, the inner sleeve 301 is located between two gaskets 305, two ends of the inner sleeve 301 are connected with the corresponding gaskets 305, the inner sleeve 301 is formed by winding and compounding multiple layers of pure spun nylon fiber paper, and has the characteristics of high strength, temperature resistance and high insulation, after the bolt body 2 is connected with the outer sleeve 1, an insulation effect is provided between the bolt body and the outer sleeve, and the bolt is suitable for more use environments.

The utility model discloses when using, lug 306 looks mirror image at the screw thread of bolt body 2 and the sealed tube 303 inner wall, get into the sealed tube 303 when inside at bolt body 2, can promote sealed tube 303 and remove to the inside of fixed tube 304 through the screw thread, fixed tube 304 can extrude sealed tube 303 when removing, let sealed tube 303 extrude bolt body 2 once more, carry out spacing when bolt body 2, the compactness of sealed tube 303 being connected with bolt body 2 has also been strengthened, make the further improvement of leakproofness, spacing pipe 302 produces deformation when receiving the extrusion, at this moment, the inner wall of fixed tube 304 extrudees spacing pipe 302, can let spacing pipe 302 continue to carry on spacingly to sealed tube 303, the outer tube inclined plane that the surface both sides of outer tube 1 set up is degressive for the volume outside gradually, can make things convenient for outer tube 1 to be connected with other pipelines, and when connecting, can let outer tube 1's outer wall and other pipelines chucking carry out preliminary fixing, it is more convenient that can connect, packing ring 305 is when bolt body 2 is connected with 1, both can make things balanced with bolt body and can let outer tube 1 carry out the high temperature resistant compound fibre connection between the environment of high temperature and the insulating paper connection, and the high-strength of the environment of using the compound silk that the insulating paper is formed.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An insulation sleeve for a bolt with high temperature resistance and high precision requirements is characterized by comprising: the bolt comprises an outer sleeve (1), wherein a bolt body (2) is arranged inside the outer sleeve (1); and the connecting assembly (3) is used for connecting the outer sleeve (1) with the bolt body (2), and the connecting assembly (3) is arranged between the outer sleeve (1) and the bolt body (2).

2. The insulating sleeve for the bolt with high temperature resistance and high precision requirement according to claim 1, characterized in that: the surface both sides of outer tube (1) all set up to the inclined plane form, the both sides of outer tube (1) all are connected with packing ring (305).

3. The insulating sleeve for the bolt, which is required to be high-temperature resistant and high-precision according to claim 2, is characterized in that: coupling assembling (3) are including installing interior sleeve pipe (301) in outer tube (1) inside, the internal connection of interior sleeve pipe (301) has two spacing pipes (302), two the inside of spacing pipe (302) all is provided with sealed tube (303), two the inside homogeneous body of sealed tube (303) is connected with lug (306), lug (306) set up to the screw thread shape, and sealed tube (303) pass through lug (306) and bolt body (2) threaded connection.

4. The insulating sleeve for the bolt, which is required to be high-temperature resistant and high-precision according to claim 3, is characterized in that: two fixed pipe (304), two are all installed to the inside of spacing pipe (302) the cross-section of fixed pipe (304) all sets up to the rectangle form, the outer wall of sealed tube (303) all with correspond the inner wall of fixed pipe (304) contacts, two sealed tube (303) slidable mounting respectively is two the inside of fixed pipe (304).

5. The insulating sleeve for the bolt with high temperature resistance and high precision requirement according to claim 3, characterized in that: the inner sleeve (301) is made of pure-spun-fiber paper, and the length of the inner sleeve (301) is the same as that of the outer sleeve (1).

6. The insulating sleeve for the bolt with high temperature resistance and high precision requirement according to claim 3, characterized in that: the inner sleeve (301) is positioned between the two gaskets (305), and two ends of the inner sleeve (301) are connected with the corresponding gaskets (305).

7. The insulation sleeve for the bolt with high temperature resistance and high precision requirement according to claim 4, characterized in that: the cross section of the limiting pipe (302) is rectangular, and the outer wall of the fixing pipe (304) is matched with the inner wall of the limiting pipe (302).