Waterproof PE heat shrink tube

Abstract

The utility model discloses a waterproof PE heat shrink tube, relates to the heat shrink tube technical field, its technical scheme is characterized in that: it includes PE heat shrink tube main part, corrosion resistant layer, waterproof layer, fireproof layer, the inner wall of PE heat shrink tube main part is fixedly connected with corrosion resistant layer, the inner wall of corrosion resistant layer is fixedly connected with the outer wall of waterproof layer, and the inner wall of fireproof layer is fixedly connected with the outer wall of waterproof layer. The inner wall of the waterproof layer is fixedly connected with the outer wall of the fireproof layer. Water can be prevented from permeating from the surface of the PE heat shrink tube body and the openings in the two ends of the PE heat shrink tube body.

Description

Technical Field

[0001] The utility model relates to the technical field of heat shrinkable tubes, and more specifically, to a waterproof PE heat shrinkable tube. Background Art

[0002] PE heat shrink tubing is a common plastic tubing with a circular cross-section and an inner wall and an outer wall. The inner and outer diameters usually change after being heated. PE is the abbreviation of polyethylene, which is a polymer compound made from ethylene monomers through polymerization. This material has properties such as chemical corrosion resistance and electrical insulation. Heat shrink tubing is a plastic tubing with heat shrinkability. It can quickly reduce its diameter after being heated and tightly wrap the object to be protected. Heat shrink tubing is usually made of polymer materials.

[0003] The staff put the polyethylene heat shrink tube on the joint of the connecting wire, and then heat it to shrink it to protect the joint of the connecting wire. However, most of the existing PE heat shrink tubes have poor waterproof performance. In the case of moisture and rain, water will enter the joint, causing leakage, short circuit and fire, causing great safety hazards.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a waterproof PE heat shrink tube.

[0006] The above technical purpose of the utility model is achieved through the following technical scheme: a waterproof PE heat shrink tube, including a PE heat shrink tube body, a corrosion-resistant layer, a waterproof layer, and a fire-proof layer. The inner wall of the PE heat shrink tube body is fixedly connected to the corrosion-resistant layer, the inner wall of the corrosion-resistant layer is fixedly connected to the outer wall of the waterproof layer, and the inner wall of the waterproof layer is fixedly connected to the outer wall of the fire-proof layer.

[0007] By adopting the above technical solution, the corrosion-resistant layer is located on the inner wall of the PE heat shrink tube body and on the outer wall of the waterproof layer, which can prevent the waterproof layer from being corroded and damaged, resulting in poor waterproof effect. The fireproof layer is fixed on the inner wall of the waterproof layer to prevent internal wires from short-circuiting and causing spontaneous combustion.

[0008] The utility model is further configured as follows: the two ends of the PE heat shrinkable tube body are fixedly connected with a left heat shrinkable ring sleeve and a right heat shrinkable ring sleeve, the inner walls of the left heat shrinkable ring sleeve and the right heat shrinkable ring sleeve are fixedly connected with a connecting waterproof layer, the inner wall of the connecting waterproof layer is fixedly connected with a hot melt adhesive layer, the hot melt adhesive layer is provided with a circular groove, and the circular groove is fixedly connected with a waterproof heat shrinkable ring.

[0009] By adopting the above technical solution, when the PE heat shrink tube is installed and fixed, the left heat shrink ring sleeve and the right heat shrink ring sleeve are heat-shrunk and fixed on the outer sides of both ends of the cable or wire, connecting the waterproof layer to prevent water from seeping in, the waterproof heat shrink ring shrinks when heated to achieve sealing, and water is released to seep in from both ends, and the hot melt adhesive layer makes the outer layer of the waterproof heat shrink ring more sealed.

[0010] The utility model is further configured as follows: the inner wall of the PE heat shrinkable tube body and the outer wall of the corrosion-resistant layer are connected with a first adhesive layer, the interior of the corrosion-resistant layer and the outer wall of the waterproof layer are connected with a second adhesive layer, the inner wall of the waterproof layer and the outer wall of the fireproof layer are connected with a third adhesive layer, and the inner walls of the left heat shrinkable ring sleeve and the right heat shrinkable ring sleeve and the outer wall of the waterproof layer are connected with a fourth adhesive layer.

[0011] By adopting the above technical solution, the layers are firmly connected through the first adhesive layer, the second adhesive layer, the third adhesive layer and the fourth adhesive layer to prevent them from falling off.

[0012] The utility model is further configured as follows: a waterproof adhesive layer is fixedly connected to the inner wall of the waterproof heat shrink ring.

[0013] By adopting the above technical solution, when the waterproof heat shrink ring shrinks due to heat, the waterproof adhesive layer is also melted by heat and connected to the inner wall of the waterproof heat shrink ring, thereby further enhancing the waterproof effect.

[0014] The utility model is further configured as follows: the waterproof layer is communicated with the connecting waterproof layer.

[0015] By adopting the above technical solution, the waterproof effect of the connection is increased.

[0016] The utility model is further configured that: the melting temperatures of the waterproof adhesive layer and the hot melt adhesive layer are lower than the shrinking temperature of the PE heat shrinkable tube body.

[0017] By adopting the above technical solution, when the PE heat shrink tube body shrinks due to heat, the melting of the waterproof adhesive layer and the hot melt adhesive layer can be ensured to enhance the sealing effect.

[0018] The utility model is further configured as follows: the diameters of the left heat shrink ring sleeve and the right heat shrink ring sleeve are smaller than the diameter of the PE heat shrink tube body.

[0019] By adopting the above technical solution, when the PE heat shrink tube body is installed and fixed, the smaller left heat shrink ring sleeve and the right heat shrink ring sleeve can achieve better fixation.

[0020] In summary, the utility model has the following beneficial effects: the wires included in the PE heat shrink tube body are waterproofed by the waterproof layer and the connecting waterproof layer, the corrosion-resistant layer protects the waterproof layer from losing its effect due to corrosion damage, the fireproof layer prevents spontaneous combustion caused by internal short circuit, the left heat shrink ring sleeve and the right heat shrink ring sleeve are better fixed on both sides of the wire or cable, and the internal waterproof heat shrink ring shrinks when heated to prevent water from seeping in from the connection port. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a partial front cross-sectional view of the PE heat shrink tube body;

[0023] Figure 3 It is a partial front cross-sectional view of the right heat shrink ring sleeve;

[0024] Figure 4 It is a partial front cross-sectional view of the hot melt adhesive layer;

[0025] Figure 5 This is a cross-sectional view of a waterproof heat shrink ring.

[0026] In the figure: 1. PE heat shrink tube body; 2. Left heat shrink ring sleeve; 3. Right heat shrink ring sleeve; 4. Fourth adhesive layer; 5. Connecting waterproof layer; 6. Hot melt adhesive layer; 7. First adhesive layer; 8. Corrosion-resistant layer; 9. Second adhesive layer; 10. Waterproof layer; 11. Third adhesive layer; 12. Fireproof layer; 13. Groove; 14. Waterproof heat shrink ring; 15. Waterproof adhesive layer. DETAILED DESCRIPTION

[0027] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] Example:

[0029] The waterproof PE heat shrink tube, such as Figure 1 and Figure 2 As shown, it includes: a PE heat shrinkable tube body 1, a corrosion-resistant layer 8, a waterproof layer 10, and a fireproof layer 12. The inner wall of the PE heat shrinkable tube body 1 is fixedly connected to the corrosion-resistant layer 8, the inner wall of the corrosion-resistant layer 8 is fixedly connected to the outer wall of the waterproof layer 10, and the inner wall of the waterproof layer 10 is fixedly connected to the outer wall of the fireproof layer 12. The corrosion-resistant layer 8 is mainly composed of epoxy resin coating, which has high adhesion and wear resistance. The waterproof layer 10 is mainly composed of polypropylene film and polyurethane coating layer, which has a double waterproof effect. The fireproof layer 12 includes flame retardant aluminum hydroxide, filler silicate and auxiliary stabilizer to prevent internal combustion.

[0030] like Figure 3 and Figure 4As shown, the two ends of the PE heat shrinkable tube body 1 are fixedly connected with a left heat shrinkable ring sleeve 2 and a right heat shrinkable ring sleeve 3, the diameters of the left heat shrinkable ring sleeve 2 and the right heat shrinkable ring sleeve 3 are smaller than the diameter of the PE heat shrinkable tube body 1, the inner walls of the left heat shrinkable ring sleeve 2 and the right heat shrinkable ring sleeve 3 are fixedly connected with a connecting waterproof layer 5, the waterproof layer 10 is connected to the connecting waterproof layer 5, the inner wall of the connecting waterproof layer 5 is fixedly connected with a hot melt adhesive layer 6, the hot melt adhesive layer 6 is provided with a circular groove 13, the groove 13 is provided at the opening of the left heat shrinkable ring sleeve 2 and the right heat shrinkable ring sleeve 3, the groove 13 is fixedly connected with a waterproof heat shrinkable ring 14, the inner wall of the waterproof heat shrinkable ring 14 is fixedly connected with a waterproof adhesive layer 15, the waterproof adhesive layer 15 and the heat The melting temperature of the melt adhesive layer 6 is lower than the shrinking temperature of the PE heat shrinkable tube body 1, so as to avoid the shrinkage and bulge caused by the melting point of the waterproof adhesive layer 15 and the hot melt adhesive layer 6 not being reached when the PE heat shrinkable tube body 1 is heated and shrunk. The inner wall of the PE heat shrinkable tube body 1 and the outer wall of the corrosion-resistant layer 8 are connected with the first adhesive layer 7, the inside of the corrosion-resistant layer 8 and the outer wall of the waterproof layer 10 are connected with the second adhesive layer 9, the inner wall of the waterproof layer 10 and the outer wall of the fireproof layer 12 are connected with the third adhesive layer 11, and the inner walls of the left heat shrinkable ring sleeve 2 and the right heat shrinkable ring sleeve 3 are connected with the outer wall of the waterproof layer 5 with the fourth adhesive layer 4. The material of the above adhesive layer is mainly hot melt adhesive, which has good adhesion and heat shrinkage.

[0031] The working principle of a waterproof PE heat shrink tube based on Example 1 is as follows: the PE heat shrink tube body 1 and each inner layer are heat shrink materials, which shrink when exposed to high temperature to protect the wires, the corrosion-resistant layer 8 protects the PE heat shrink tube body 1 and the waterproof layer 10 from being corroded by corrosive substances from the outside, so that the PE heat shrink tube body 1 and the waterproof layer 10 lose their protection and waterproof effects and cause losses, the waterproof layer 10 prevents water from penetrating longitudinally from the outside, the waterproof heat shrink ring 14 shrinks when heated, the waterproof adhesive layer 15 and the hot melt adhesive layer 6 melt when heated and are fixed to the inner wall and outer wall of the waterproof heat shrink ring 14 respectively, blocking the remaining gap to prevent water from flowing horizontally from the opening, thereby achieving the heat shrink tube's horizontal and vertical dual waterproof effects, and when the PE heat shrink tube body 1 is fixed, the left heat shrink ring sleeve 2 and the right heat shrink ring sleeve 3 are subject to more constraints and pressure than the PE heat shrink tube body 1, and shrink more obviously, and can fix the PE heat shrink tube body 1 and ensure that the heat shrink tube can completely cover the wires that need to be protected or connected when in use.

[0032] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A waterproof PE heat shrink tube, comprising a PE heat shrink tube body (1), a corrosion resistant layer (8), a waterproof layer (10), and a fireproof layer (12), characterized in that: The inner wall of the PE heat shrink tube body (1) is fixedly connected to the corrosion-resistant layer (8), the inner wall of the corrosion-resistant layer (8) is fixedly connected to the outer wall of the waterproof layer (10), and the inner wall of the waterproof layer (10) is fixedly connected to the outer wall of the fireproof layer (12).

2. A waterproof PE heat shrink tube according to claim 1, characterized in that: The two ends of the PE heat shrinkable tube body (1) are fixedly connected with a left heat shrinkable ring sleeve (2) and a right heat shrinkable ring sleeve (3); the inner walls of the left heat shrinkable ring sleeve (2) and the right heat shrinkable ring sleeve (3) are fixedly connected with a connection waterproof layer (5); the inner wall of the connection waterproof layer (5) is fixedly connected with a hot melt adhesive layer (6); the hot melt adhesive layer (6) is provided with a circular groove (13); the groove (13) is fixedly connected with a waterproof heat shrinkable ring (14).

3. A waterproof PE heat shrink tube according to claim 2, characterized in that: The inner wall of the PE heat shrink tube body (1) and the outer wall of the corrosion-resistant layer (8) are connected with a first adhesive layer (7), the interior of the corrosion-resistant layer (8) and the outer wall of the waterproof layer (10) are connected with a second adhesive layer (9), the inner wall of the waterproof layer (10) and the outer wall of the fireproof layer (12) are connected with a third adhesive layer (11), and the inner walls of the left heat shrink ring sleeve (2) and the right heat shrink ring sleeve (3) and the outer wall of the waterproof layer (5) are connected with a fourth adhesive layer (4).

4. A waterproof PE heat shrink tube according to claim 2, characterized in that: The inner wall of the waterproof heat shrink ring (14) is fixedly connected with a waterproof adhesive layer (15).

5. The waterproof PE heat shrink tube according to claim 2, characterized in that: The waterproof layer (10) is in communication with the connecting waterproof layer (5).

6. The waterproof PE heat shrink tube according to claim 4, characterized in that: The melting temperatures of the waterproof adhesive layer (15) and the hot-melt adhesive layer (6) are lower than the shrinking temperature of the PE heat shrinkable tube body (1).

7. The waterproof PE heat shrink tube according to claim 2, characterized in that: The diameters of the left heat shrink ring sleeve (2) and the right heat shrink ring sleeve (3) are smaller than the diameter of the PE heat shrink tube body (1).

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