Heat shrinkable sleeve with high weather resistance

Abstract

The utility model provides a thermal shrinkage sleeve of strong weatherability, including thermal shrinkage sleeve main part (1), inner layer sleeve (2), outer layer sleeve (3) and seal ring (5), wherein the inner layer sleeve (2) is fixedly connected with the inner layer of thermal shrinkage sleeve main part (1), the outer layer sleeve (3) is fixedly connected with the inner layer of thermal shrinkage sleeve main part (1), the outside of thermal shrinkage sleeve main part (1) is fixedly connected with slope sleeve (4), and the slope sleeve (4) is fixedly connected with the seal ring (5). The sealing ring (5) is fixedly connected to the outer portion of the inclined face sleeve (4), an inner abrasion-resistant layer (6) is arranged in the inner layer sleeve (2), a cold-resistant heat preservation layer (7) is arranged on the outer portion of the inner abrasion-resistant layer (6), a glass fiber layer (8) is arranged on the outer portion of the cold-resistant heat preservation layer (7), and a phenolic aldehyde epoxy layer (11) is fixedly connected to the side, close to the inner layer sleeve (2), of the outer layer sleeve (3). A phenolic aldehyde epoxy layer (11) is fixedly connected to the outer part of the glass fiber layer (8), a flame-retardant heat-insulating layer (12) is fixedly connected to the outer part of the phenolic aldehyde epoxy layer (11), a heat-shrinkable layer (13) is fixedly connected to the outer part of the flame-retardant heat-insulating layer (12), an outer wear-resistant layer (15) is fixedly connected to the outer part of the heat-shrinkable layer (13), a polyester fiber net (14) is embedded between the heat-shrinkable layer (13) and the outer wear-resistant layer (15), and a heat-conducting copper wire (10) is embedded between the glass fiber layer (8) and the phenolic aldehyde epoxy layer (11).

Description

Technical Field

[0001] The utility model relates to the technical field of heat shrinkable sleeves, in particular to a heat shrinkable sleeve with strong weather resistance. Background Art

[0002] A heat shrinkable sleeve is a radiation cross-linked polyethylene pipe with a special inner layer hot melt adhesive composite processing technology. Its remarkable characteristic is that it can shrink evenly after heating. Therefore, it is widely used in the anti-corrosion and insulation treatment of various pipeline joints, such as in the fields of telecommunications, electricity, various chemical industries and construction. This material not only provides excellent waterproof sealing effect, but also has advantages such as high mechanical strength and strong anti-aging ability. It can be installed by simple heating, with convenient operation, effectively improving the construction efficiency and quality. During the laying construction, it is difficult to ensure the sealing safety of the internal pipeline and the service life of the heat shrinkable sleeve under the erosion of soil and water from underground, exposure to extreme weather such as wind, sun, rain and snow when exposed on the ground, or accidents such as flooding and fire. At the same time, after long-term use of the heat shrinkable sleeve body, its sealing effect and overall shape are difficult to maintain. Therefore, this application provides a heat shrinkable sleeve with strong weather resistance. Content of the Utility Model

[0003] To solve the above technical problems, the utility model proposes a cup cover with a simple structure and convenient operation.

[0004] The technical solution of the utility model is realized as follows:

[0005] A heat shrinkable sleeve with strong weather resistance includes a heat shrinkable sleeve body, an inner sleeve, an outer sleeve and a sealing ring. Among them, the inner sleeve is fixedly connected to the inner layer of the heat shrinkable sleeve body, the outer sleeve is fixedly connected to the inner layer of the heat shrinkable sleeve body, a beveled sleeve is fixedly connected to the outside of the heat shrinkable sleeve body, and the sealing ring is fixedly connected to the outside of the beveled sleeve;

[0006] An internal wear-resistant layer is arranged inside the inner sleeve, a cold-resistant heat-insulating layer is arranged outside the internal wear-resistant layer, and a glass fiber layer is arranged outside the cold-resistant heat-insulating layer;

[0007] On one side of the outer sleeve close to the inner sleeve, a phenolic epoxy layer is fixedly connected, a flame-retardant heat-insulating layer is fixedly connected to the outside of the phenolic epoxy layer, and a heat shrinkable layer is fixedly connected to the outside of the flame-retardant heat-insulating layer;

[0008] An external wear-resistant layer is fixedly connected to the outside of the heat shrinkable layer, a polyester fiber mesh is buried between the heat shrinkable layer and the external wear-resistant layer, and a heat-conducting copper wire is buried between the glass fiber layer and the phenolic epoxy layer.

[0009] Furthermore, a fitting groove is formed outside the internal wear-resistant layer, and the number of the fitting grooves is multiple and they are circumferentially distributed outside the internal wear-resistant layer.

[0010] Furthermore, heat-conducting copper wires are embedded between the inner sleeve and the outer sleeve, and the heat-conducting copper wires are distributed crosswise and perpendicularly to each other.

[0011] Furthermore, there are two sets of the inclined sleeves, which are symmetrically distributed outside the heat-shrinkable sleeve body.

[0012] Furthermore, a polyester fiber mesh is embedded between the heat-shrinkable layer and the external wear-resistant layer, and the polyester fiber meshes are distributed crosswise and perpendicularly to each other.

[0013] Furthermore, the heat-conducting copper wires are clamped between the glass fiber layer and the phenolic epoxy layer, and external heat is evenly transferred inside the phenolic epoxy layer.

[0014] Furthermore, the external wear-resistant layer entirely covers the outside of the polyester fiber mesh and is fixedly connected thereto.

[0015] Furthermore, the inner sleeve and the outer sleeve do not extend into the inclined sleeves.

[0016] The utility model has the following beneficial effects:

[0017] 1. By providing the inclined sleeves, the sealing rings, the heat-conducting copper wires and the polyester fiber meshes, when the heat-shrinkable sleeve body is buried underground for a long time, the overall shape of the heat-shrinkable sleeve body can be maintained, and extra sealing and buffering can be provided, thus realizing the integrity of the device function.

[0018] 2. By providing the inner sleeve and the outer sleeve, the device can more effectively cope with low-temperature and high-temperature environments, and greatly increases the corrosion resistance of the heat-shrinkable sleeve body. Each layer is sleeved and connected with each other, with a simple structure and remarkable protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an overall schematic diagram of the heat-shrinkable sleeve with strong weather resistance of the utility model;

[0020] Figure 2 is the utility model Figure 1 in a partial schematic diagram;

[0021] Figure 3 is an internal structure schematic diagram of the heat-shrinkable sleeve with strong weather resistance of the utility model;

[0022] Figure 4 is a cross-sectional schematic diagram of the cup lid of the utility model;

[0023] Figure 5 is the cup lid of the utility model Figure 4 in an internal structure schematic diagram;

[0024] Figure 6 is the cup lid of the utility modelFigure 4 Internal structure schematic diagram;

[0025] Figure 7 It is the Figure 3 Enlarged view at position A in Specific implementation manner

[0026] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 to 7 As shown, the cup cover provided by the present invention includes a heat shrinkable sleeve body, an inner layer sleeve, an outer layer sleeve and a sealing ring. The inner layer sleeve is fixedly connected to the inner layer of the heat shrinkable sleeve body. The outer layer sleeve is fixedly connected to the inner layer of the heat shrinkable sleeve body. A beveled sleeve is fixedly connected to the outside of the heat shrinkable sleeve body. The sealing ring is fixedly connected to the outside of the beveled sleeve;

[0028] An internal wear-resistant layer is arranged inside the inner layer sleeve. A cold-resistant heat-insulating layer is arranged outside the internal wear-resistant layer. A glass fiber layer is arranged outside the cold-resistant heat-insulating layer;

[0029] On one side of the outer layer sleeve close to the inner layer sleeve, a phenolic epoxy layer is fixedly connected. A flame-retardant heat-insulating layer is fixedly connected to the outside of the phenolic epoxy layer. A heat shrinkable layer is fixedly connected to the outside of the flame-retardant heat-insulating layer;

[0030] An external wear-resistant layer is fixedly connected to the outside of the heat shrinkable layer. A polyester fiber mesh is embedded between the heat shrinkable layer and the external wear-resistant layer. A heat-conducting copper wire is embedded between the glass fiber layer and the phenolic epoxy layer.

[0031] Specifically, after the heat shrinkable sleeve body is installed on the target pipeline, the two ends of the pipeline are connected and fixed through the sealing ring. Then, the outer surface of the heat shrinkable sleeve body is heated and shrunk. The heat penetrates into the polyester fiber mesh through the external wear-resistant layer. After being dispersed and transmitted by the polyester fiber mesh, it is transmitted to the heat shrinkable layer. After being heated, the heat shrinkable layer drives the entire heat shrinkable sleeve body to shrink and be fixed outside the target pipeline. During this process, the fitting groove outside the internal wear-resistant layer contacts the outside of the target pipeline and forms a negative pressure to assist in fixing. After the heat shrinkage is completed in the middle area of the heat shrinkable sleeve body, the beveled sleeve and the sealing ring are continuously heated and shrunk to complete the sealing and fixing of the two ends of the connection of the target pipeline. During the heating process, the locally transmitted heat is dispersed to other areas through the heat-conducting copper wire and the polyester fiber mesh, preventing local overheating or uneven heating, and providing overall shape stability for the heat shrinkable sleeve body.

[0032] Further, a fitting groove is provided on the outside of the inner wear-resistant layer. There are multiple groups of the fitting grooves, which are circumferentially distributed on the outside of the inner wear-resistant layer. Heat-conducting copper wires are embedded between the inner sleeve and the outer sleeve, and the heat-conducting copper wires are vertically distributed in a cross-cross manner. There are two groups of the inclined sleeves, which are symmetrically distributed on the outside of the heat-shrinkable sleeve body. A polyester fiber mesh is embedded between the heat-shrinkable layer and the outer wear-resistant layer, and the polyester fiber meshes are vertically distributed in a cross-cross manner. The heat-conducting copper wires are clamped between the glass fiber layer and the phenolic epoxy layer to evenly transfer the external heat inside the phenolic epoxy layer. The outer wear-resistant layer entirely covers the outside of the polyester fiber mesh and is fixedly connected thereto. The inner sleeve and the outer sleeve do not extend into the inside of the inclined sleeve.

[0033] By making the above settings, after the heat-shrinkable sleeve body is buried underground, when encountering environments such as soil liquefaction, the inner wear-resistant layer and the outer wear-resistant layer are used to reduce the damage caused by the friction between the heat-shrinkable sleeve body and the outer wall of the pipeline and the external soil. At the same time, the cold-resistant heat-insulating layer and the glass fiber layer are used to provide constant temperature protection for the inner pipeline. When the heat-shrinkable sleeve body is exposed to the outside, the flame-retardant heat-insulating layer is used to isolate and protect the external temperature to prevent overheating inside caused by sunlight exposure. At the same time, the heat-conducting copper wires and the polyester fiber mesh evenly disperse the heat to reduce high-temperature damage. Moreover, the glass fiber layer and the phenolic epoxy layer can resist corrosive substances from the inside or outside, greatly improving the weather resistance of the device.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat shrinkable sleeve with strong weather resistance, characterized in that, It includes a heat shrinkable sleeve body (1), an inner sleeve (2), an outer sleeve (3) and a sealing ring (5). Among them, the inner sleeve (2) is fixedly connected to the inner layer of the heat shrinkable sleeve body (1), the outer sleeve (3) is fixedly connected to the inner layer of the heat shrinkable sleeve body (1), a beveled sleeve (4) is fixedly connected to the outside of the heat shrinkable sleeve body (1), and the sealing ring (5) is fixedly connected to the outside of the beveled sleeve (4); An internal wear-resistant layer (6) is arranged inside the inner sleeve (2), a cold-resistant heat-insulating layer (7) is arranged outside the internal wear-resistant layer (6), and a glass fiber layer (8) is arranged outside the cold-resistant heat-insulating layer (7); On one side of the outer sleeve (3) close to the inner sleeve (2), a phenolic epoxy layer (11) is fixedly connected, a flame-retardant heat-insulating layer (12) is fixedly connected to the outside of the phenolic epoxy layer (11), and a heat shrinkable layer (13) is fixedly connected to the outside of the flame-retardant heat-insulating layer (12); An external wear-resistant layer (15) is fixedly connected to the outside of the heat shrinkable layer (13), a polyester fiber mesh (14) is embedded between the heat shrinkable layer (13) and the external wear-resistant layer (15), and a heat-conducting copper wire (10) is embedded between the glass fiber layer (8) and the phenolic epoxy layer (11).

2. The heat shrinkable sleeve with strong weather resistance according to claim 1, characterized in that A fitting groove (9) is formed outside the internal wear-resistant layer (6), and the number of the fitting grooves (9) is multiple and they are circumferentially distributed outside the internal wear-resistant layer (6).

3. The heat shrinkable sleeve with strong weather resistance according to claim 1, characterized in that, A heat-conducting copper wire (10) is embedded between the inner sleeve (2) and the outer sleeve (3), and the heat-conducting copper wires (10) are mutually crosswise and vertically distributed.

4. A heat shrinkable sleeve with strong weather resistance according to claim 3, characterized in that, The number of the beveled sleeves (4) is two and they are symmetrically distributed outside the heat shrinkable sleeve body (1).

5. A heat shrinkable sleeve with strong weather resistance according to claim 1, characterized in that, A polyester fiber mesh (14) is embedded between the heat shrinkable layer (13) and the external wear-resistant layer (15), and the polyester fiber meshes (14) are mutually crosswise and vertically distributed.

6. The heat shrinkable sleeve with strong weather resistance according to claim 5, characterized in that, The heat-conducting copper wires (10) are clamped with each other between the glass fiber layer (8) and the phenolic epoxy layer (11), and the external heat is evenly transferred inside the phenolic epoxy layer (11).

7. The heat shrinkable sleeve with strong weather resistance according to claim 5, characterized in that The external wear-resistant layer (15) entirely covers the outside of the polyester fiber mesh (14) and is fixedly connected thereto.

8. A heat shrinkable sleeve with strong weather resistance according to claim 7, characterized in that, The inner sleeve (2) and the outer sleeve (3) do not extend into the beveled sleeve (4).

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