CN210041178U

CN210041178U - Flame-retardant silicone rubber heat-shrinkable sleeve

Info

Publication number: CN210041178U
Application number: CN201920667068.3U
Authority: CN
Inventors: 赵永青; 刘卫东; 刘凯
Original assignee: Suzhou Faster New Materials Co Ltd
Current assignee: Suzhou Faster New Materials Co Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-02-07
Anticipated expiration: 2029-05-10

Abstract

The utility model discloses a fire-retardant silicon rubber heat-shrinkable tube relates to heat-shrinkable tube technical field, for solving the situation that heat-shrinkable tube has two coupling joints in the use, connect the punishment of punishment and expose in the open air can shorten life to cause the problem of damage to communication cable. The equal fixedly connected with flange in one side of first heat-shrinkable tube and second heat-shrinkable tube, be provided with sealed the pad between the flange, flange's top and bottom are provided with clamp splice and clamp splice down respectively, the left side of going up the clamp splice and the equal fixedly connected with movable block in left side of clamp splice down, through pivot swing joint between the movable block, the spacing groove has all been seted up to the inner chamber of going up the clamp splice and the inner chamber of clamp splice down, flange extends to the inner chamber of spacing groove, and flange and spacing groove swing joint.

Description

Flame-retardant silicone rubber heat-shrinkable sleeve

Technical Field

The utility model relates to a heat-shrinkable tube technical field specifically is a fire-retardant silicon rubber heat-shrinkable tube.

Background

The heat-shrinkable sleeve is also called as a heat-shrinkable protective sleeve, provides insulation protection for wires, cables and wire terminals, has high-temperature shrinkage, softness, flame retardance, insulation corrosion prevention and the like, is widely used for insulation protection of various wire harnesses, welding spots and inductors, rust prevention, corrosion prevention and the like of metal pipes and bars, and is mainly used for industries of functional machine manufacturing, electrical insulation protection, lighting equipment, automobile manufacturing, aviation equipment, subways, trains, automatic control and the like.

However, the heat-shrinkable tubing has a two-tube joint condition during use, and long-term exposure of the joint to the open air can shorten the service life, thereby causing damage to the communication cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-retardant silicon rubber heat-shrinkable tube possesses increase of service life's advantage, has solved heat-shrinkable tube and has had two piece union's situation in the use, connects the punishment of punishment and expose in the open air can shorten life to cause the problem of damage to communication cable.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-retardant silicon rubber heat-shrinkable tubing, includes first heat-shrinkable tubing and second heat-shrinkable tubing, the equal fixedly connected with flange in one side of first heat-shrinkable tubing and second heat-shrinkable tubing, be provided with sealed the pad between the flange, flange's top and bottom are provided with clamp splice and lower clamp splice respectively.

Preferably, the left side of going up the clamp splice and the left side of lower clamp splice all fixedly connected with movable block, through pivot swing joint between the movable block.

Preferably, the inner cavity of the upper clamping block and the inner cavity of the lower clamping block are both provided with a limiting groove, the connecting flange extends to the inner cavity of the limiting groove, and the connecting flange is movably connected with the limiting groove.

Preferably, the right side of the upper clamping block and the right side of the lower clamping block are both fixedly connected with connecting blocks, and the connecting blocks are in threaded connection through bolts.

Preferably, the surfaces of the first heat-shrinkable sleeve and the second heat-shrinkable sleeve are provided with fluororubber layers, the bottom of each fluororubber layer is provided with a nitrile rubber layer, one side, away from each fluororubber layer, of each nitrile rubber layer is provided with a chlorosulfonated polyethylene layer, and one side, away from each nitrile rubber layer, of each chlorosulfonated polyethylene layer is provided with a chloroprene rubber layer.

Preferably, a magnesium hydroxide layer is arranged between the chlorosulfonated polyethylene layer and the chloroprene rubber layer.

Preferably, the surface of the sealing gasket is provided with a polyvinyl chloride layer, the bottom of the polyvinyl chloride layer is provided with a polytetrafluoroethylene layer, and one side of the polytetrafluoroethylene layer, which is far away from the polyvinyl chloride layer, is provided with a methyl diphenyl room temperature vulcanized silicone rubber layer.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a clamp splice and lower clamp splice have been played in the setting, the effect fixed to flange, connecting block and bolt threaded connection to fix clamp splice and lower clamp splice, sealed pad is effectively sealed the joint between first heat shrink sleeve and the second heat shrink sleeve, solved the situation that heat shrink sleeve exists two pipe joints in the use, connect punishment and expose in the open air can shorten life, thereby cause the problem of damage to communication cable.

2. The utility model discloses a set up the spacing groove, played the spacing effect to flange, and through spacing to flange, can play fixedly to fire-retardant silicon rubber heat shrinkage bush to a certain extent, promoted the stability of using.

Drawings

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

FIG. 2 is a schematic view of the connection state of the upper clamping block and the lower clamping block of the present invention;

FIG. 3 is a schematic view of the structure of a nitrile rubber layer according to the present invention;

fig. 4 is a schematic view of the structure of the teflon layer of the present invention.

In the figure: the heat-shrinkable tube comprises a first heat-shrinkable tube 1, a second heat-shrinkable tube 2, a connecting flange 3, a sealing gasket 4, an upper clamping block 5, a lower clamping block 6, a movable block 7, a limiting groove 8, a connecting block 9, a bolt 10, a fluororubber layer 11, a nitrile rubber layer 12, a chlorosulfonated polyethylene layer 13, a chloroprene rubber layer 14, a magnesium hydroxide layer 15, a polyvinyl chloride layer 16, a polytetrafluoroethylene layer 17 and a methyl diphenyl room temperature vulcanized silicone rubber layer 18.

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.

The utility model discloses a first heat shrinkage bush 1, second heat shrinkage bush 2, flange 3, sealed 4, go up clamp splice 5, clamp splice 6 down, movable block 7, spacing groove 8, connecting block 9, bolt 10, fluororubber layer 11, butadiene acrylonitrile rubber layer 12, chlorosulfonated polyethylene layer 13, chloroprene rubber layer 14, magnesium hydrate layer 15, polyvinyl chloride layer 16, polytetrafluoroethylene layer 17 and methyl diphenyl room temperature vulcanized silicone rubber layer 18 part are the general standard or the part that technical personnel in the field know, its structure and principle all are that this technical personnel all can learn through the technical manual or learn through conventional experimental method.

Referring to fig. 1-4, a flame-retardant silicone rubber heat-shrinkable sleeve comprises a first heat-shrinkable sleeve 1 and a second heat-shrinkable sleeve 2, wherein a fluororubber layer 11 is arranged on the surfaces of the first heat-shrinkable sleeve 1 and the second heat-shrinkable sleeve 2, a nitrile rubber layer 12 is arranged at the bottom of the fluororubber layer 11, a chlorosulfonated polyethylene layer 13 is arranged on one side of the nitrile rubber layer 12 away from the fluororubber layer 11, a chloroprene rubber layer 14 is arranged on one side of the chlorosulfonated polyethylene layer 13 away from the nitrile rubber layer 12, a magnesium hydroxide layer 15 is arranged between the chlorosulfonated polyethylene layer 13 and the chloroprene rubber layer 14, connecting flanges 3 are fixedly connected to one sides of the first heat-shrinkable sleeve 1 and the second heat-shrinkable sleeve 2, a sealing gasket 4 is arranged between the connecting flanges 3, a polyvinyl chloride layer 16 is arranged on the surface of the sealing gasket 4, a polytetrafluoroethylene layer 17 is arranged at the bottom of the polyvinyl chloride layer 16, and a methyl diphenyl room, the top and the bottom of the connecting flange 3 are respectively provided with an upper clamping block 5 and a lower clamping block 6, the left side of the upper clamping block 5 and the left side of the lower clamping block 6 are both fixedly connected with a movable block 7, the movable blocks 7 are movably connected through a rotating shaft, the inner cavities of the upper clamping block 5 and the lower clamping block 6 are both provided with a limiting groove 8, the connecting flange 3 extends to the inner cavity of the limiting groove 8, the connecting flange 3 is movably connected with the limiting groove 8, the right side of the upper clamping block 5 and the right side of the lower clamping block 6 are both fixedly connected with a connecting block 9, the connecting blocks 9 are in threaded connection through bolts 10, the upper clamping block 5 and the lower clamping block 6 are arranged to achieve the effect of fixing the connecting flange 3, the connecting block 9 is in threaded connection with the bolts 10 so as to fix the upper clamping block 5 and the lower clamping block 6, the sealing gasket 4 effectively seals the joint between the first heat-shrinkable sleeve 1 and the second heat-shrinkable sleeve 2, and solves the problem that the situation that two joints exist, the long-term exposure of the joint to the open air can shorten the service life, thereby causing damage to the communication cable.

When in use, the upper clamping block 5 and the lower clamping block 6 are arranged to achieve the effect of fixing the connecting flange 3, the connecting block 9 is in threaded connection with the bolt 10, so that the upper clamping block 5 and the lower clamping block 6 are fixed, the sealing gasket 4 effectively seals a joint between the first heat-shrinkable sleeve 1 and the second heat-shrinkable sleeve 2, the fluororubber layer 11 achieves the effects of high temperature resistance, radiation resistance and acid and alkali resistance and can be used in a temperature environment of-20 ℃ to 220 ℃, the Buna-N rubber layer 12 achieves the effects of oil resistance, wear resistance, aging resistance and strong airtightness, the chlorosulfonated polyethylene layer 13 and the chloroprene rubber layer 14 achieve the effect of flame retardance prevention, the magnesium hydroxide layer 15 improves the flame retardance coefficient, the polyvinyl chloride layer 16 achieves the effects of oil resistance, wear resistance and good insulating property, the polytetrafluoroethylene layer 17 achieves the effects of thermal shrinkage, electrical insulation and chemical corrosion resistance, the methyl diphenyl room temperature vulcanized silicone rubber layer 18 has the advantages of water resistance, ozone resistance, electric arc resistance, corona resistance, weather aging resistance and the like, can be used at the temperature of-60 ℃ to 200 ℃, and solves the problems that the heat-shrinkable sleeve has two sleeve joints in the use process, the service life of the joint is shortened after the joint is exposed outdoors for a long time, and the communication cable is damaged.

The standard parts used in the application document can be purchased from the market, and can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, and machines, parts and equipment adopt conventional models in the prior art.

In summary, the following steps: this fire-retardant silicon rubber heat-shrinkable tube, through first heat-shrinkable tube 1, second heat-shrinkable tube 2, flange 3, sealed 4, go up clamp splice 5, clamp splice 6 down, movable block 7, spacing groove 8, connecting block 9, bolt 10, fluororubber layer 11, butadiene acrylonitrile rubber layer 12, chlorosulfonated polyethylene layer 13, chloroprene rubber layer 14, magnesium hydrate layer 15, polyvinyl chloride layer 16, polytetrafluoroethylene layer 17 and the cooperation of methyl diphenyl room temperature vulcanized silicone rubber layer 18, the situation that has two bushing joints in the use of heat-shrinkable tube has been solved, connect long time exposure in the department can shorten life in the open air, thereby cause the problem of damage to communication cable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fire-retardant silicon rubber heat-shrinkable tube, includes first heat-shrinkable tube (1) and second heat-shrinkable tube (2), its characterized in that: the heat-shrinkable tubing is characterized in that connecting flanges (3) are fixedly connected to one sides of the first heat-shrinkable tubing (1) and the second heat-shrinkable tubing (2), sealing gaskets (4) are arranged between the connecting flanges (3), and an upper clamping block (5) and a lower clamping block (6) are arranged at the top and the bottom of each connecting flange (3) respectively.

2. The flame-retardant silicone rubber heat-shrinkable sleeve according to claim 1, wherein: go up the equal fixedly connected with movable block (7) in the left side of clamp splice (5) and the left side of lower clamp splice (6), through pivot swing joint between movable block (7).

3. The flame-retardant silicone rubber heat-shrinkable sleeve according to claim 1, wherein: the inner cavity of the upper clamping block (5) and the inner cavity of the lower clamping block (6) are respectively provided with a limiting groove (8), the connecting flange (3) extends to the inner cavity of the limiting groove (8), and the connecting flange (3) is movably connected with the limiting groove (8).

4. The flame-retardant silicone rubber heat-shrinkable sleeve according to claim 1, wherein: the right side of going up clamp splice (5) and the equal fixedly connected with connecting block (9) in right side of lower clamp splice (6), through bolt (10) threaded connection between connecting block (9).

5. The flame-retardant silicone rubber heat-shrinkable sleeve according to claim 1, wherein: the surface of first heat-shrinkable sleeve (1) and second heat-shrinkable sleeve (2) all is provided with fluororubber layer (11), the bottom of fluororubber layer (11) is provided with butadiene acrylonitrile rubber layer (12), one side that fluororubber layer (11) were kept away from in butadiene acrylonitrile rubber layer (12) is provided with chlorosulfonated polyethylene layer (13), one side that chlorosulfonated polyethylene layer (13) were kept away from butadiene acrylonitrile rubber layer (12) is provided with chloroprene rubber layer (14).

6. The flame-retardant silicone rubber heat-shrinkable sleeve according to claim 5, wherein: and a magnesium hydroxide layer (15) is arranged between the chlorosulfonated polyethylene layer (13) and the chloroprene rubber layer (14).

7. The flame-retardant silicone rubber heat-shrinkable sleeve according to claim 1, wherein: the surface of the sealing gasket (4) is provided with a polyvinyl chloride layer (16), the bottom of the polyvinyl chloride layer (16) is provided with a polytetrafluoroethylene layer (17), and one side of the polytetrafluoroethylene layer (17) far away from the polyvinyl chloride layer (16) is provided with a methyl diphenyl room temperature vulcanized silicone rubber layer (18).