Flexible mineral explosion-proof cable

Abstract

The utility model relates to the technical field of cables, and discloses a flexible mineral explosion-proof cable, which comprises a cable main body and a protective sleeve, a filling layer is arranged in the cable main body, a heat insulation layer is arranged on the outer wall of the filling layer, a first fireproof layer is arranged on the outer wall of the heat insulation layer, and a second fireproof layer is arranged on the outer wall of the first fireproof layer. A first fireproof layer is arranged on the inner wall of the protective sleeve, a plurality of flexible supporting blocks are arranged on the outer wall of the first fireproof layer, a second fireproof layer is arranged on the outer walls of the flexible supporting blocks, a wear-resistant layer is arranged on the outer wall of the second fireproof layer, contraction grooves are formed in the upper portion and the lower portion of the inner wall of the protective sleeve, and fastening arc-shaped plates are movably arranged in the two contraction grooves. According to the utility model, through the arrangement of the first fireproof layer and the second fireproof layer, fire spreading can be effectively prevented, good fireproof protection is provided, and through the arrangement of the flexible supporting blocks and the heat insulation layer, damage of external high temperature to the conductors in the cable main body can be effectively isolated.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a flexible mineral explosion-proof cable. Background Art

[0002] With the development of the world economy and science and technology, the demand for wires and cables is growing, and the performance requirements are also increasing. Mineral cables usually work in harsh environments and need to face the test of external conditions such as high temperature.

[0003] Some existing related cables have weak explosion-proof performance. In the event of fire or high temperature, the internal conductor of the cable may be damaged, which may cause an explosion and pose a safety hazard. Therefore, technicians in this field provide a flexible mineral explosion-proof cable to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present utility model is to solve the shortcomings existing in the prior art, and a flexible mineral explosion-proof cable is proposed. By providing a first fireproof layer and a second fireproof layer, it can effectively prevent the spread of fire and provide good fire protection. By providing a flexible support block and a heat insulation layer, it can effectively isolate the external high temperature from invading the conductor inside the cable body. By adding fireproof and heat insulation protection to the cable body, the explosion-proof performance of the cable body can be improved and the safety can be improved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flexible mineral explosion-proof cable, comprising a cable body and a protective sleeve, a filling layer is arranged inside the cable body, a heat insulation layer is arranged on the outer wall of the filling layer, a first fireproof layer is arranged on the outer wall of the heat insulation layer, a plurality of flexible support blocks are arranged on the outer wall of the first fireproof layer, a second fireproof layer is arranged on the outer wall of the plurality of flexible support blocks, and a wear-resistant layer is arranged on the outer wall of the second fireproof layer;

[0006] The inner wall of the protective sleeve is provided with contraction grooves at the upper and lower parts, and fastening arc plates are movably arranged inside the two contraction grooves, and a plurality of contraction springs are fixedly connected between the two fastening arc plates and the opposite ends of the corresponding contraction grooves;

[0007] Through the above technical scheme, by providing a first fireproof layer and a second fireproof layer, the spread of fire can be effectively prevented and good fire protection can be provided. By providing a flexible support block and a heat insulation layer, the external high temperature can be effectively isolated from the conductor inside the cable body. By providing a protective cover, the risk of corrosion and damage can be reduced. By providing a fastening arc plate and a contraction spring, the stability of the protective cover on the cable body can be strengthened.

[0008] Furthermore, the front inner walls of the two shrinkage grooves are provided with moving grooves, the front ends of the two fastening arc plates are fixedly connected with moving blocks, and the two moving blocks are movably arranged in the corresponding moving grooves;

[0009] Through the above technical solution, by providing the moving groove and the moving block, the operator can loosen the fastening arc plate to pull out the protective cover from the end of the cable body.

[0010] Furthermore, the cable body is clamped in the protective cover, and rubber pads are provided at opposite ends of the two fastening arc plates;

[0011] According to the technical solution, the cable body is clamped in the protective sleeve and a rubber pad is provided, thereby protecting the end of the cable body without crushing the cable body.

[0012] Furthermore, the filling layer is made of silicone rubber material;

[0013] Through the above technical scheme, the filling layer is made of silicone rubber material, which has good flexibility and high temperature resistance, good waterproof, moisture-proof and corrosion-resistant properties, and good insulation performance. It can effectively isolate the conductor inside the cable body and prevent problems such as circuit short circuit and leakage.

[0014] Furthermore, the heat insulation layer is made of mica material;

[0015] Through the above technical solution, the heat insulation layer is made of mica material, which has high high temperature resistance and insulation performance, and can effectively isolate the external high temperature from damaging the conductor inside the cable body.

[0016] Furthermore, the first fireproof layer and the second fireproof layer are both made of graphite material;

[0017] Through the above technical scheme, by using graphite material to make the first fireproof layer and the second fireproof layer, it has high high temperature resistance and flame retardant properties, it can effectively prevent the spread of fire, provide good fire protection, and thus improve the explosion-proof performance of the cable body.

[0018] Furthermore, the wear-resistant layer is made of polyvinyl chloride material;

[0019] Through the above technical solution, the wear-resistant layer is made of polyvinyl chloride material, thereby effectively protecting the interior of the cable body.

[0020] The utility model has the following beneficial effects:

[0021] 1. The utility model proposes a flexible mineral explosion-proof cable. The cable body is provided with a first fireproof layer and a second fireproof layer, thereby effectively preventing the spread of fire and providing good fire protection. The cable body is provided with a flexible support block and a heat insulation layer, thereby effectively isolating the external high temperature from invading the conductor inside the cable body. By adding fireproof and heat insulation protection to the cable body, the explosion-proof performance of the cable body can be improved and the safety can be improved.

[0022] 2. The utility model proposes a flexible mineral explosion-proof cable. When the cable body is idle and not installed for use, the protective cover can be clamped on the end of the cable body, thereby reducing the risk of corrosion and damage. When it needs to be installed and used, the fastening arc plate can be loosened by moving the moving block, and the protective cover can be pulled out from the end of the cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an axonometric schematic diagram of a flexible mineral explosion-proof cable proposed by the utility model;

[0024] Figure 2 This is a front cross-sectional schematic diagram of a cable body of a flexible mineral explosion-proof cable proposed by the utility model;

[0025] Figure 3 It is a partial side cross-sectional schematic diagram of a flexible mineral explosion-proof cable proposed by the utility model;

[0026] Figure 4 This is a front cross-sectional schematic diagram of a protective cover of a flexible mineral explosion-proof cable proposed by the utility model;

[0027] Figure 5 The utility model is a front view schematic diagram of a protective cover of a flexible mineral explosion-proof cable.

[0028] Legend:

[0029] 1. Cable body; 2. Protective cover; 3. Filling layer; 4. Heat insulation layer; 5. First fireproof layer; 6. Flexible support block; 7. Second fireproof layer; 8. Wear-resistant layer; 9. Shrinkage groove; 10. Fastening arc plate; 11. Shrinkage spring; 12. Rubber pad; 13. Moving groove; 14. Moving block. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the specific implementation of the utility model to clearly and completely describe the technical solutions in the specific implementation of the utility model. Obviously, the specific implementation described is only a part of the specific implementation of the utility model, not all of the specific implementation. Based on the specific implementation of the utility model, all other specific implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-5 The utility model provides a specific implementation mode: a flexible mineral explosion-proof cable, including a cable body 1 and a protective cover 2. A filling layer 3 is arranged inside the cable body 1. The filling layer 3 is made of silicone rubber material. By adopting silicone rubber material to make the filling layer 3, it has good flexibility and high temperature resistance, and also has good waterproof, moisture-proof and corrosion-resistant properties. It also has good insulation performance, and can effectively isolate the conductor inside the cable body 1 to prevent problems such as circuit short circuit and leakage. The outer wall of the filling layer 3 is provided with a heat insulation layer 4. The heat insulation layer 4 is made of mica material. By adopting mica material to make the heat insulation layer 4, it has high high temperature resistance and insulation performance, and can effectively isolate the external high temperature from the cable body. 1, the outer wall of the heat insulation layer 4 is provided with a first fireproof layer 5, the outer wall of the first fireproof layer 5 is provided with a plurality of flexible support blocks 6, the outer wall of the plurality of flexible support blocks 6 is provided with a second fireproof layer 7, the first fireproof layer 5 and the second fireproof layer 7 are both made of graphite material, by using graphite material to make the first fireproof layer 5 and the second fireproof layer 7, it has high high temperature resistance and flame retardant performance, it can effectively prevent the spread of fire, provide good fire protection, and thus improve the explosion-proof performance of the cable body 1, the outer wall of the second fireproof layer 7 is provided with a wear-resistant layer 8, the wear-resistant layer 8 is made of polyvinyl chloride material, by using polyvinyl chloride material to make the wear-resistant layer 8, then the inside of the cable body 1 can be effectively protected;

[0032] The inner wall of the protective cover 2 is provided with shrinkage grooves 9 at the upper and lower parts, and fastening arc plates 10 are movably arranged inside the two shrinkage grooves 9. A plurality of shrinkage springs 11 are fixedly connected between the two fastening arc plates 10 and the opposite ends of the corresponding shrinkage grooves 9. The front end inner walls of the two shrinkage grooves 9 are provided with moving grooves 13. The front ends of the two fastening arc plates 10 are fixedly connected with moving blocks 14. The two moving blocks 14 are movably arranged in the corresponding moving grooves 13. By providing the moving grooves 13 and the moving blocks 14, the operator can loosen the fastening arc plates 10 to pull out the protective cover 2 from the end of the cable body 1. The cable body 1 is clamped in the protective cover 2, and the opposite ends of the two fastening arc plates 10 are provided with rubber pads 12. By clamping the cable body 1 in the protective cover 2 and providing the rubber pads 12, the cable body 1 will not be crushed while the end of the cable body 1 is protected.

[0033] Working principle: The cable body 1 is provided with a first fireproof layer 5 and a second fireproof layer 7, thereby effectively preventing the spread of fire and providing good fire protection. By providing a flexible support block 6 and a heat insulation layer 4, the external high temperature can be effectively isolated from the conductor inside the cable body 1. By adding fireproof and heat insulation protection to the cable body 1, the explosion-proof performance of the cable body 1 can be improved, and the safety can be improved. At the same time, when the cable body 1 is idle and not installed, the protective cover 2 can be clamped on the end of the cable body 1 to reduce the risk of corrosion and damage. When it needs to be installed and used, the fastening arc plate 10 can be loosened by toggling the moving block 14, and the protective cover 2 can be pulled out from the end of the cable body 1.

[0034] Finally, it should be noted that the above is only a preferred specific implementation method of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned specific implementation methods, those skilled in the art can still modify the technical solutions recorded in the aforementioned specific implementation methods, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flexible mineral explosion-proof cable, comprising a cable body (1) and a protective cover (2), characterized in that: A filling layer (3) is arranged inside the cable body (1), a heat insulation layer (4) is arranged on the outer wall of the filling layer (3), a first fireproof layer (5) is arranged on the outer wall of the heat insulation layer (4), a plurality of flexible support blocks (6) are arranged on the outer wall of the first fireproof layer (5), a second fireproof layer (7) is arranged on the outer wall of the plurality of flexible support blocks (6), and a wear-resistant layer (8) is arranged on the outer wall of the second fireproof layer (7); The inner wall of the protective sleeve (2) is provided with contraction grooves (9) at the upper and lower parts, and fastening arc plates (10) are movably arranged inside the two contraction grooves (9), and a plurality of contraction springs (11) are fixedly connected between the two fastening arc plates (10) and the opposite ends of the corresponding contraction grooves (9).

2. A flexible mineral explosion-proof cable according to claim 1, characterized in that: The front end inner walls of the two contraction grooves (9) are each provided with a moving groove (13), the front ends of the two fastening arc plates (10) are each fixedly connected with a moving block (14), and the two moving blocks (14) are both movably arranged in the corresponding moving grooves (13).

3. A flexible mineral explosion-proof cable according to claim 1, characterized in that: The cable body (1) is clamped in the protective cover (2), and rubber pads (12) are provided at opposite ends of the two fastening arc plates (10).

4. The flexible mineral explosion-proof cable according to claim 1, characterized in that: The filling layer (3) is made of silicone rubber material.

5. The flexible mineral explosion-proof cable according to claim 1, characterized in that: The heat insulation layer (4) is made of mica material.

6. The flexible mineral explosion-proof cable according to claim 1, characterized in that: The first fireproof layer (5) and the second fireproof layer (7) are both made of graphite material.

7. The flexible mineral explosion-proof cable according to claim 1, characterized in that: The wear-resistant layer (8) is made of polyvinyl chloride material.

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