Double-layer polyethylene electric hot melting sleeve

Abstract

The utility model discloses a double-layer polyethylene electric hot melting sleeve, which comprises an electric hot melting sleeve main body and a connecting cylinder, the electric hot melting sleeve main body comprises a sleeve, two sides of the sleeve are provided with connecting grooves, the connecting grooves are provided with a capacitance silk screen and a polyethylene layer, one end of the capacitance silk screen is provided with a connecting electrode, and the sleeve is provided with a protective hole. A protective cap is arranged on the protective hole in a threaded connection mode, a connecting pipe is arranged on the casing pipe, a connecting clamping hook is arranged on the connecting pipe, a connecting sleeve is arranged on the connecting cylinder body, a connecting clamping groove matched with the connecting clamping hook is formed in the connecting sleeve, a connecting ring is arranged on the connecting sleeve, and a connecting buckle on the connecting pipe is matched with the connecting clamping groove in the connecting sleeve. The connecting cylinder and the electric hot melting sleeve body are conveniently connected and fixed, the capacitance screen mesh is electrified through the connecting electrode, the polyethylene layer is conveniently heated, the connecting electrode is conveniently protected by arranging the protective hole and the protective cap, and dust pollution caused by direct exposure of the connecting electrode is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric heat melting sleeve, more specifically, it relates to a double-layer polyethylene electric heat melting sleeve. BACKGROUND

[0002] The electric heat melting sleeve is a connecting pipe fitting that connects the jacket pipe together through electric heat melting after PE plate is covered with a net, bent and rolled, and is the first generation of electric heat melting sleeve renewal product due to the adoption of special electric heating wire net, and the connecting strength and sealing effect are very good.

[0003] The internal part of the electric heat melting sleeve currently adopted is only provided with an electric heat melting belt, and the sealing effect is also affected when sealing the heat preservation pipe interface, and the traditional electric heat melting sleeve structure is relatively simple, so that the electric heat melting sleeve is easily damaged by external high temperature and corrosion during use, and the electrode of the existing electric heat melting sleeve is usually directly exposed to the outside during transportation and use, so that the dust in the outside is easily entered into the inner wall of the electrode mounting part, which can cause the inner wall of the electrode mounting part to be blocked, and the dust adhered to the surface of the electrode can affect the connection state between the electrode and the power supply, thereby affecting the welding effect of the PE pipe. CONTENT OF THE UTILITY MODEL

[0004] (I) Technical problem solved

[0005] In view of the problems in the prior art, the utility model provides a double-layer polyethylene electric heat melting sleeve to solve the technical problems mentioned in the background art.

[0006] (II) Technical scheme

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a double-layer polyethylene electric heat melting sleeve, including electric heat melting sleeve main part and connecting cylinder, the electric heat melting sleeve main part includes sleeve pipe, both sides of the sleeve pipe are equipped with connecting groove, the connecting groove is equipped with electric capacity wire net and polyethylene layer, the polyethylene layer is equipped with two, one end of the electric capacity wire net is equipped with connecting electrode, the sleeve pipe is equipped with protection hole, the protection hole is equipped with protection cap in screw thread connection, the sleeve pipe is equipped with connecting pipe, the connecting pipe is equipped with connecting hook, the connecting cylinder is equipped with connecting sleeve, the connecting sleeve is equipped with connecting clamping groove matched with the connecting hook, the connecting sleeve is equipped with connecting ring.

[0008] The utility model further sets up that the connecting sleeve and sleeve pipe are all equipped with inclined plane, and the connecting sleeve and sleeve pipe are conveniently connected.

[0009] The utility model further provides for, be equipped with the sealing ring on the sleeve, be equipped with the gasket on the sealing ring, improved the connection sealing property of connecting cylinder and electric heat melting sleeve main part.

[0010] The utility model further provides for, be equipped with the rotating head on the protective cap, convenient for rotating the protective cap.

[0011] The utility model further provides for, the sleeve includes sleeve body, be equipped with reinforcing layer on the sleeve body, the reinforcing layer outside sleeve joint is equipped with the protective net, improved the overall strength of sleeve.

[0012] The utility model further provides for, the inside of reinforcing layer is inserted and is equipped with high strength fiber, improved the strength of reinforcing layer.

[0013] The utility model further provides for, the outside of protective net is equipped with the heat preservation layer, the outside of heat preservation layer is equipped with the flame -retardant layer, improved the heat preservation and the flame -retardant performance of sleeve main part.

[0014] The utility model further provides for, the outer surface of flame -retardant layer is equipped with anticorrosive coating, prolonged the service life of pipe body.

[0015] (Three)beneficial effects

[0016] Compared with the prior art, the utility model provides a double -layer polyethylene electric heat melting sleeve, has the following beneficial effects:

[0017] 1, through the connection electrode for the electric heating of polyethylene layer, through the setting protection hole and protective cap, convenient for the protection of connection electrode, prevent the dust pollution caused by the direct exposure of connection electrode.

[0018] 2, through the connection buckle on the connecting pipe and the connection clamping groove on the connecting sleeve cooperation, convenient for the connection of connecting cylinder and electric heat melting sleeve main part, through the setting gasket and sealing ring, improved the connection sealing property of connecting cylinder and electric heat melting sleeve main part.

[0019] 3, through setting high strength fiber on reinforcing layer and setting protective net on reinforcing layer, improved the strength of electric heat melting sleeve main part, through setting heat preservation layer and flame -retardant layer, improved the heat preservation flame -retardant effect of electric heat melting sleeve main part, through setting anticorrosive coating, improved the corrosion -resistant effect. DRAWINGS

[0020] Figure 1 It is the whole structure schematic drawing of electric heat melting sleeve main part and connecting cylinder in the utility model;

[0021] Figure 2 It is the cooperation structure schematic drawing of electric heat melting sleeve main part and connecting cylinder in the utility model;

[0022] Figure 3 It is the section structure schematic view of the sleeve pipe in the utility model;

[0023] Figure 4 It is Figure 3 It is the partial structure enlarged schematic view of A in the utility model;

[0024] Figure 5 It is the cooperation structure schematic view of the sleeve body, reinforcing layer, protective net, high-strength fiber, heat preservation layer, flame retardant layer and anticorrosive coating in the utility model.

[0025] In the figure: 1, electric heating sleeve main body;2, connecting cylinder body;3, sleeve pipe;4, connecting groove;5, capacitor wire net;6, polyethylene layer;7, connecting electrode;8, protective hole;9, protective cap;10, connecting pipe;11, connecting hook;12, connecting sleeve;13, connecting clamping groove;14, connecting ring;15, inclined surface;16, sealing ring;17, sealing gasket;18, rotating head;19, sleeve body;20, reinforcing layer;21, protective net;22, high-strength fiber;23, heat preservation layer;24, flame retardant layer;25, anticorrosive coating. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0028] In the utility model, the orientation such as "up, down" is generally directed to the direction shown in the drawings, or is directed to the vertical, perpendicular or gravity direction, unless otherwise stated.It is the same that, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings;"inner, outer" refers to the inner and outer relative to the contour of each component, but the above orientation words are not used to limit the utility model.

[0029] Please refer to Figures 1-5The utility model provides a double -layer polyethylene electric heat melting sleeve, including electric heat melting sleeve body 1 and connecting cylinder body 2, electric heat melting sleeve body 1 includes sleeve pipe 3, is equipped with connecting groove 4 on both sides of sleeve pipe 3, is equipped with electric capacity silk screen 5 and polyethylene layer 6 on connecting groove 4, polyethylene layer 6 is provided with two, is equipped with connecting electrode 7 in one end of electric capacity silk screen 5, is equipped with protective hole 8 on sleeve pipe 3, is equipped with protective cap 9 with screw thread connection on protective hole 8, is equipped with connecting pipe 10 on sleeve pipe 3, is equipped with connecting clamping hook 11 on connecting pipe 10, is equipped with connecting sleeve 12 on connecting cylinder body 2, is provided with the connecting clamping groove 13 of cooperation with connecting clamping hook 11 on connecting sleeve 12, is equipped with connecting ring 14 on connecting sleeve 12, is equipped with inclined surface 15 on both connecting sleeve 12 and sleeve pipe 3, is equipped with sealing ring 16 on sleeve pipe 3, is equipped with sealing pad 17 on sealing ring 16, is equipped with rotating head 18 on protective cap 9.

[0030] In the embodiment, when connecting the connecting cylinder body 2 and the electric heat melting sleeve body 1, the connecting pipe 10 is inserted into the connecting sleeve 12, under the extrusion of the connecting sleeve 12, the connecting clamping hook 11 on the connecting pipe 10 is slightly bent inward and then is clamped outside the connecting clamping groove 13, the connecting cylinder body 2 and the electric heat melting sleeve body 1 are connected, the connecting ring 14 is in contact with the sealing pad 17 and the sealing pad 17, the connection sealing between the connecting sleeve 12 and the electric heat melting sleeve body 1 is improved, the protective cap 9 is rotated through the rotating head 18, and then the protective hole 8 is opened, the electric capacity silk screen 5 is heated after the connecting electrode 7 is electrically connected with external equipment, and the connecting cylinder body 2 and the electric heat melting sleeve body 1 are connected through the polyethylene layer 6.

[0031] Please refer to Figure 5 As an embodiment of the sleeve pipe 3: the sleeve pipe 3 includes a sleeve body 19, the sleeve body 19 is provided with a reinforcing layer 20, the reinforcing layer 20 is provided with a protective net 21 outside, the reinforcing layer 20 is provided with a high-strength fiber 22 inside, the protective net 21 is provided with a heat preservation layer 23 outside, the heat preservation layer 23 is provided with a flame-retardant layer 24 outside, and the flame-retardant layer 24 is provided with an anti-corrosion coating 25 on the outer surface.

[0032] More specifically, the reinforcing layer 20 cooperates with the protective net 21 to increase the strength of the electric heat melting sleeve body 1, the high-strength fiber 22 is inserted into the through hole inside the reinforcing layer 20, the high-strength fiber 22 is a glass fiber, the high-strength fiber 22 can increase the strength of the reinforcing layer 20 and has certain corrosion resistance, the heat preservation layer 23 is a phenolic foam, which can prevent the heat loss of the medium transported in the jacket pipe and insulate the external temperature, the flame-retardant layer 24 is a chloroprene rubber, which can prevent the electric heat melting sleeve from being ignited when a fire occurs outside and block the fire to a certain extent, and the anti-corrosion coating 25 is an alkyd resin paint, which can prevent the surface of the electric heat melting sleeve body 1 from being corroded by external corrosive substances, thereby increasing the service life of the electric heat melting sleeve body 1.

[0033] In summary, the overall device in use or operation: when connecting the connecting cylinder 2 and the electric heat melting sleeve body 1, the connecting pipe 10 is inserted into the connecting sleeve 12, under the extrusion of the connecting sleeve 12, the connecting hook 11 on the connecting pipe 10 is slightly bent inward, and then moves to the outside of the connecting slot 13 to be clamped, the connecting cylinder 2 and the electric heat melting sleeve body 1 are connected, the connecting ring 14 is in contact with the sealing gasket 17 and the sealing gasket 17, and the connection between the connecting sleeve 12 and the electric heat melting sleeve body 1 is improved. The sealing property, the protective cap 9 is driven to rotate by the rotating head 18, and then the protective hole 8 is opened, the connecting electrode 7 is electrically connected with the external device, and the electric heating wire net 5 is heated, and the polyethylene layer 6 is connected with the connecting cylinder 2 and the electric heat melting sleeve body 1.

[0034] The reinforcing layer 20 cooperates with the protective net 21 to increase the strength of the electric heat melting sleeve body 1, the high-strength fiber 22 is inserted into the through hole in the reinforcing layer 20, the high-strength fiber 22 is glass fiber, the high-strength fiber 22 can increase the strength of the reinforcing layer 20, and has certain corrosion resistance, the heat preservation layer 23 is phenolic foam, which can prevent the heat loss in the jacket pipeline and the external temperature, and the flame retardant layer 24 is chloroprene rubber, which can prevent the electric heat melting sleeve from being ignited when the external fire occurs, so as to block the fire to a certain extent. The corrosion-resistant coating 25 is an alkyd resin paint, and the corrosion-resistant coating 25 can prevent the surface of the electric heat melting sleeve body 1 from being corroded by external corrosive substances, so as to increase the service life of the electric heat melting sleeve body 1.

[0035] The other parts not described in the utility model are all prior art, so they will not be described here.

[0036] In all the schemes mentioned above, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut cooperation connection, bolt or screw connection or other known connection mode, which will not be described one by one. In the above, whenever there is a fixed connection, welding is preferred, although the embodiments of the utility model have been shown and described, those skilled in the art can understand that the embodiments can be changed, modified, replaced and modified in various ways without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A double-layer polyethylene electric heat shrink sleeve comprising an electric heat shrink sleeve body (1) and a connecting cylinder (2), characterized in that: The electric heating sleeve body (1) comprises a sleeve (3), both sides of the sleeve (3) are provided with connecting grooves (4), the connecting grooves (4) are provided with capacitor wire meshes (5) and polyethylene layers (6), the polyethylene layers (6) are two, one end of the capacitor wire meshes (5) is provided with connecting electrodes (7), the sleeve (3) is provided with protection holes (8), the protection holes (8) are threadedly connected with protection caps (9), the sleeve (3) is provided with connecting pipes (10), the connecting pipes (10) are provided with connecting clamps (11), the connecting cylinder (2) is provided with connecting sleeves (12), the connecting sleeves (12) are provided with connecting clamping grooves (13) matched with the connecting clamps (11), and the connecting sleeves (12) are provided with connecting rings (14).

2. A double-polyethylene electric heat shrinkable sleeve according to claim 1, characterized in that: The connecting sleeve (12) and the sleeve (3) are both provided with inclined surfaces (15).

3. A double-polyethylene electric heat shrinkable sleeve according to claim 1, characterized in that: The sleeve (3) is provided with a sealing ring (16), and the sealing ring (16) is provided with a sealing gasket (17).

4. The dual layer polyethylene electrical heat shrinkable sleeve of claim 1 wherein: The protection cap (9) is provided with a rotating head (18).

5. A double-polyethylene electric heat shrinkable sleeve according to claim 1, characterized in that: The sleeve (3) comprises a sleeve body (19), the sleeve body (19) is provided with a reinforcing layer (20), and the reinforcing layer (20) is externally sleeved with a protective net (21).

6. A double-polyethylene electric heat shrinkable sleeve according to claim 5, characterized in that: The reinforcing layer (20) is internally inserted with high-strength fibers (22).

7. A double-polyethylene electric heat shrinkable sleeve according to claim 6, characterized in that: The protective net (21) is externally sleeved with a heat preservation layer (23), and the heat preservation layer (23) is externally sleeved with a flame-retardant layer (24).

8. A double-polyethylene electric heat shrinkable sleeve according to claim 7, characterized in that: The outer surface of the flame-retardant layer (24) is provided with an anti-corrosion coating (25).

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