A flame retardant composite insulating heat shrink tubing

Abstract

This utility model discloses a flame-retardant composite insulating heat shrink tubing, comprising a heat shrink tubing body, a first flange fixed to the outer wall of one side of the heat shrink tubing body, and a second flange fixed to the outer wall of the other side of the heat shrink tubing body. The first flange has equally spaced first positioning holes inside, both ends of which extend to the outside of the first flange. The second flange has equally spaced second positioning holes inside, both ends of which extend to the outside of the second flange. The heat shrink tubing body includes an insulating base layer, with the insulating base layer located at the center of the heat shrink tubing body. This utility model not only achieves the purpose of easy splicing and use of the heat shrink tubing, but also reduces wear on the heat shrink tubing body, thereby extending its service life, and improves the flame-retardant performance of the heat shrink tubing body, thus expanding the applicability of the heat shrink tubing.

Description

Technical Field

[0001] The utility model relates to the technical field of heat shrinkable sleeves, in particular to a flame retardant composite insulating heat shrinkable sleeve. Background Art

[0002] Heat shrink tubing is a special polyolefin heat shrink tubing with excellent insulation protection performance. It can effectively provide insulation protection for wires, cables and wire terminals. Therefore, heat shrink tubing can be widely used.

[0003] A flame retardant heat shrinkable sleeve with reference publication number CN112259307A comprises a flame retardant heat shrinkable sleeve main body, a wear-resistant layer is arranged inside the flame retardant heat shrinkable sleeve main body, the inner wall of the wear-resistant layer is fixedly connected to the insulating layer, the inner wall of the insulating layer is fixedly connected to the barrier layer, and the barrier layer is wrapped with wires; the beneficial effect of the heat shrinkable sleeve is that the flame retardant heat shrinkable sleeve is effectively avoided from being damaged by long-term wear through the flame retardant heat shrinkable sleeve main body, which is beneficial to increase the wear resistance of the flame retardant heat shrinkable sleeve and increase the service life of the flame retardant heat shrinkable sleeve. According to the above, although the heat shrinkable sleeve can be well applied, it is usually not convenient to assemble and connect the heat shrinkable sleeve, and it is not easy to splice and use the heat shrinkable sleeve, which often troubles users. Utility Model Content

[0004] The purpose of the utility model is to provide a flame retardant composite insulating heat shrink tubing to solve the problem in the above background technology that although the heat shrink tubing can be well applied, it is usually not convenient to assemble and connect the heat shrink tubing, and it is not easy to splice and use the heat shrink tubing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flame-retardant composite insulating heat shrinkable sleeve, comprising a heat shrinkable sleeve body, a first flange is fixed on the outer wall of one side of the heat shrinkable sleeve body, a second flange is fixed on the outer wall of the other side of the heat shrinkable sleeve body, the interior of the first flange is provided with first positioning holes with equal spacing, both ends of the first positioning holes extend to the outside of the first flange, the interior of the second flange is provided with second positioning holes with equal spacing, both ends of the second positioning holes extend to the outside of the second flange.

[0006] Preferably, the heat shrinkable tube body includes an insulating base layer, and an insulating base layer is arranged at a central position inside the heat shrinkable tube body. The insulating performance of the heat shrinkable tube body is improved by the arrangement of the insulating base layer.

[0007] Preferably, the heat shrinkable tube body further includes an outer wear-resistant layer and an outer flame-retardant layer. The outer flame-retardant layer is arranged on the outer wall of the insulating base layer, and the outer wear-resistant layer is arranged on the outer wall of the outer flame-retardant layer. The outer wear-resistant layer and the outer flame-retardant layer are arranged to improve the wear resistance and flame-retardant properties of the heat shrinkable tube body.

[0008] Preferably, the heat shrinkable tube body includes an inner flame retardant layer and an inner wear-resistant layer. The inner flame retardant layer is arranged on the inner wall of the insulating base layer, and the inner wear-resistant layer is arranged on the inner wall of the inner flame retardant layer. The wear resistance and flame retardancy of the heat shrinkable tube body are improved by arranging the inner flame retardant layer and the inner wear-resistant layer.

[0009] Preferably, the material of the outer wear-resistant layer and the inner wear-resistant layer are both set to fluororubber, the material of the outer flame retardant layer and the inner flame retardant layer are both set to graphitized carbon fiber yarns, and the material of the insulating base layer is set to silicone rubber. By using fluororubber, graphitized carbon fiber yarns and silicone rubber to respectively make the outer wear-resistant layer and the inner wear-resistant layer, the outer flame retardant layer and the inner flame retardant layer and the insulating base layer, the heat shrinkable sleeve body has excellent properties such as good wear resistance, flame retardancy and insulation.

[0010] Preferably, a first sealing ring is provided at the edge of the outer wall of one side of the first flange, and a second sealing ring is provided at the edge of the outer wall of one side of the second flange. The first sealing ring and the second sealing ring are provided to ensure the sealing of the two sets of heat shrinkable sleeves after splicing.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the flame-retardant composite insulating heat shrinkable sleeve not only achieves the purpose of facilitating the splicing and use of the heat shrinkable sleeve, but also can reduce the phenomenon of wear of the heat shrinkable sleeve body, thereby extending the service life of the heat shrinkable sleeve, and improves the flame retardant performance of the heat shrinkable sleeve body, thereby increasing the application range of the heat shrinkable sleeve;

[0012] (1) The two groups of heat shrink tubes can be spliced ​​by attaching the first flange of the first group of heat shrink tubes to the second flange of the second group of heat shrink tubes, and then passing the first positioning hole and the second positioning hole through the bolt member, thereby achieving the purpose of facilitating the splicing and use of the heat shrink tubes;

[0013] (2) By using fluororubber to make the outer wear-resistant layer and the inner wear-resistant layer, the wear resistance of the heat shrinkable tube body can be improved from both the inner and outer sides, so as to reduce the wear of the heat shrinkable tube body after long-term use, thereby extending the service life of the heat shrinkable tube;

[0014] (3) By using graphitized carbon fiber filaments to make the outer flame retardant layer and the inner flame retardant layer, the flame retardant performance of the heat shrinkable tube body can be improved, so that the heat shrinkable tube can be used in a high temperature environment, thereby increasing the application range of the heat shrinkable tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the right side;

[0016] Figure 2 This is a left-view three-dimensional structural schematic diagram of the utility model;

[0017] Figure 3 This is an enlarged structural diagram of the first flange of the utility model;

[0018] Figure 4 This is an enlarged structural diagram of the second flange of the utility model;

[0019] Figure 5 This is a side view of the structure of the utility model;

[0020] Figure 6 It is a schematic diagram of the partial cross-sectional structure of the heat shrinkable sleeve body of the utility model.

[0021] In the figure: 1. heat shrink tubing body; 101. outer wear-resistant layer; 102. outer flame-retardant layer; 103. insulating base layer; 104. inner flame-retardant layer; 105. inner wear-resistant layer; 2. first flange; 3. second flange; 4. first sealing ring; 5. first positioning hole; 6. second sealing ring; 7. second positioning hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6 The utility model provides an embodiment: a flame-retardant composite insulating heat shrinkable tube, comprising a heat shrinkable tube body 1, the heat shrinkable tube body 1 comprising an insulating base layer 103, and the insulating base layer 103 is arranged at the center position inside the heat shrinkable tube body 1;

[0024] When in use, the insulating base layer 103 is provided to improve the insulation performance of the heat shrinkable sleeve body 1;

[0025] The heat shrinkable tube body 1 further comprises an outer wear-resistant layer 101 and an outer flame-retardant layer 102. The outer flame-retardant layer 102 is arranged on the outer wall of the insulating base layer 103, and the outer wear-resistant layer 101 is arranged on the outer wall of the outer flame-retardant layer 102.

[0026] When in use, the outer wear-resistant layer 101 and the outer flame-retardant layer 102 are provided to improve the wear resistance and flame-retardant performance of the heat shrinkable tube body 1;

[0027] The heat shrinkable tube body 1 comprises an inner flame retardant layer 104 and an inner wear-resistant layer 105. The inner flame retardant layer 104 is arranged on the inner wall of the insulating base layer 103, and the inner wear-resistant layer 105 is arranged on the inner wall of the inner flame retardant layer 104.

[0028] When in use, the inner flame retardant layer 104 and the inner wear-resistant layer 105 are provided to improve the wear resistance and flame retardancy of the heat shrinkable tube body 1;

[0029] The material of the outer wear-resistant layer 101 and the inner wear-resistant layer 105 are both set to fluororubber, the material of the outer flame-retardant layer 102 and the inner flame-retardant layer 104 are both set to graphitized carbon fiber, and the material of the insulating base layer 103 is set to silicone rubber;

[0030] When in use, the outer wear-resistant layer 101 and the inner wear-resistant layer 105, the outer flame-retardant layer 102 and the inner flame-retardant layer 104 and the insulating base layer 103 are respectively made of fluororubber, graphitized carbon fiber and silicone rubber, so that the heat shrinkable tube body 1 has excellent properties such as good wear resistance, flame retardancy and insulation;

[0031] A first flange 2 is fixed on the outer wall of one side of the heat shrinkable tube body 1, a first sealing ring 4 is arranged at the edge of the outer wall of one side of the first flange 2, and a second sealing ring 6 is arranged at the edge of the outer wall of one side of the second flange 3;

[0032] When in use, the first sealing ring 4 and the second sealing ring 6 are arranged to ensure the sealing of the two sets of heat shrinkable tubes after splicing;

[0033] A second flange 3 is fixed on the outer wall of the other side of the heat shrink tube body 1, and the interior of the first flange 2 is provided with first positioning holes 5 with equal spacing, and both ends of the first positioning holes 5 extend to the outside of the first flange 2, and the interior of the second flange 3 is provided with second positioning holes 7 with equal spacing, and both ends of the second positioning holes 7 extend to the outside of the second flange 3.

[0034] When the embodiment of the present application is used, the first flange 2 of the first group of heat shrinkable sleeves is first attached to the second flange 3 of the second group of heat shrinkable sleeves, and then the first positioning hole 5 and the second positioning hole 7 are penetrated by bolts, so that the two groups of heat shrinkable sleeves can be spliced ​​and used. Since the first flange 2 and the second flange 3 are respectively provided with a first sealing ring 4 and a second sealing ring 6 on the outer wall, the first sealing ring 4 and the second sealing ring 6 can seal the connection position of the two groups of heat shrinkable sleeves, thereby reducing the phenomenon that external dust flows into the heat shrinkable sleeve body 1 and erodes it, and then by using fluorine The outer wear-resistant layer 101 and the inner wear-resistant layer 105 are made of rubber, so that the wear resistance of the heat shrinkable tube body 1 can be improved from both the inner and outer sides, and the wear of the heat shrinkable tube body 1 can be reduced. At the same time, the cold resistance, insulation and waterproof performance of the heat shrinkable tube body 1 can be effectively improved. Finally, by using graphitized carbon fiber to make the outer flame retardant layer 102 and the inner flame retardant layer 104, the flame retardant performance of the heat shrinkable tube body 1 can be improved. By using silicone rubber to make the insulating base layer 103, the insulation, high temperature resistance and anti-aging performance of the heat shrinkable tube body 1 can be improved, thereby completing the use of the heat shrinkable tube.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A flame retardant composite insulating heat shrink tubing, characterized in that: The invention comprises a heat shrinkable tube body (1), a first flange (2) being fixed on the outer wall of one side of the heat shrinkable tube body (1), a second flange (3) being fixed on the outer wall of the other side of the heat shrinkable tube body (1), the first flange (2) being provided with first positioning holes (5) at equal intervals inside, both ends of the first positioning holes (5) extending to the outside of the first flange (2), and the second flange (3) being provided with second positioning holes (7) at equal intervals inside, both ends of the second positioning holes (7) extending to the outside of the second flange (3).

2. The flame-retardant composite insulating heat shrinkable sleeve according to claim 1, characterized in that: The heat shrinkable tube body (1) comprises an insulating base layer (103), and the insulating base layer (103) is arranged at the central position inside the heat shrinkable tube body (1).

3. The flame-retardant composite insulating heat shrink tubing according to claim 2, characterized in that: The heat shrinkable tube body (1) comprises an outer wear-resistant layer (101) and an outer flame-retardant layer (102); the outer wall of the insulating base layer (103) is provided with the outer flame-retardant layer (102); and the outer wall of the outer flame-retardant layer (102) is provided with the outer wear-resistant layer (101).

4. The flame-retardant composite insulating heat shrinkable sleeve according to claim 3, characterized in that: The heat shrinkable tube body (1) further comprises an inner flame retardant layer (104) and an inner wear-resistant layer (105); the inner flame retardant layer (104) is arranged on the inner wall of the insulating base layer (103); and the inner wear-resistant layer (105) is arranged on the inner wall of the inner flame retardant layer (104).

5. The flame-retardant composite insulating heat shrinkable sleeve according to claim 4, characterized in that: The material of the outer wear-resistant layer (101) and the inner wear-resistant layer (105) are both set to fluororubber, the material of the outer flame-retardant layer (102) and the inner flame-retardant layer (104) are both set to graphitized carbon fiber filaments, and the material of the insulating base layer (103) is set to silicone rubber.

6. The flame-retardant composite insulating heat shrink tubing according to claim 1, characterized in that: A first sealing ring (4) is provided at the edge of the outer wall of one side of the first flange (2), and a second sealing ring (6) is provided at the edge of the outer wall of one side of the second flange (3).

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