High-flame-retardant cable

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a high flame-retardant cable, which comprises a cable sleeve, the inner wall of the cable sleeve is fixedly connected with a plurality of supporting pieces arranged in an annular array, the surfaces of the sides, far away from the cable sleeve, of the supporting pieces are jointly and fixedly connected with a fixing ring, and the fixing ring is fixedly connected with the inner wall of the cable sleeve. And the inner wall of the fixing ring is fixedly connected with a plurality of isolation sleeves which are arranged in an annular array. According to the utility model, through the arrangement of the isolation sleeve, electromagnetic shielding processing can be carried out on the cable body, the transmission effect of electric signals can be improved, under the action of the fixing ring and the supporting member, fixation processing can be indirectly carried out between the cable body and the cable sleeve so as to improve the impact resistance of the cable body, and under the action of the protection layer, the cable body can be protected. The sealing effect of the cable sleeve can be guaranteed, the good flame-retardant effect of the cable can be guaranteed through the arrangement of the first flame-retardant layer and the second flame-retardant layer, the friction effect of the surface of the cable can be improved in cooperation with the effect of the friction groove, and then the placement stability of the cable is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a highly flame-retardant cable. Background Art

[0002] As we all know, a cable is a device used to transmit electrical signals or electrical energy, usually composed of one or more insulated conductors and one or more insulating layers. Cables can be used to connect different devices or systems, such as power systems, communication systems, computer networks, etc. The type and specification of cables depend on the specific application requirements. Common cables include power cables, communication cables, control cables, etc. The conductor of the cable is usually made of metal materials, such as copper, aluminum, etc., which can provide good electrical conductivity. The insulation layer of the cable is usually made of materials such as polyethylene, polyvinyl chloride, etc., and has good insulation properties.

[0003] However, the existing cables still have certain shortcomings when used: first, most of the existing cables simply use the cable skin to install and fix the cable body, which makes the buffer space of the cable body effective, thereby causing the problem of poor impact resistance of the cable body;

[0004] Secondly, most existing cables simply use materials such as polyethylene to protect the cable body. Since the ignition point of materials such as polyethylene is low, the flame retardant effect of the cable is weak. Utility Model Content

[0005] The utility model aims to provide a highly flame-retardant cable, which solves the problem that most existing cables simply use cable skins to install and fix the cable body, making the buffer space of the cable body effective, thereby causing the cable body to have poor impact resistance; and solves the problem that most existing cables simply use polyethylene and other materials to protect the cable body, and the flame retardant effect of the cable is weak due to the low ignition point of polyethylene and other materials.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly flame-retardant cable, comprising a cable sheath, the inner wall of the cable sheath is fixedly connected with a plurality of support members arranged in a circular array, the surface of each support member away from the cable sheath is commonly fixedly connected with a fixing ring, the inner wall of the fixing ring is fixedly connected with a plurality of isolation sleeves arranged in a circular array, the inner wall of each isolation sleeve is fixedly connected with a cable body, the inner wall of the cable sheath is fixedly connected with two evenly distributed protective layers, the protective layers are fixedly connected to the isolation sleeves, the outer side of the cable sheath is fixedly connected with a first flame-retardant layer, the outer side of the first flame-retardant layer is fixedly connected with a second flame-retardant layer, and the surface of the second flame-retardant layer is provided with a plurality of friction grooves arranged in a circular array.

[0007] Preferably, the support member is trapezoidal in shape as a whole and is made of heat-resistant silicone rubber. The support member can be used to support the fixing ring through the arrangement of the support member, and the heat-resistant silicone rubber material has good heat resistance and flexibility.

[0008] Preferably, the isolation sleeve is woven from annealed copper wires. By providing the isolation sleeve, the cable body can be subjected to electromagnetic shielding treatment, and the annealed copper wires have a good electromagnetic shielding effect.

[0009] Preferably, the protective layer is made of polysulfide sealant material. By setting the protective layer, the cable sheath can be sealed, and the polysulfide sealant material has good sealing and flexibility effects.

[0010] Preferably, the first flame retardant layer is made of flame retardant glass fiber material. The flame retardant effect of the cable sheath can be improved by setting the first flame retardant layer, and the flame retardant glass fiber material has good flame retardancy.

[0011] Preferably, the second flame retardant layer is made of flame retardant polyolefin material. The flame retardancy of the cable sheath can be improved by setting the second flame retardant layer, and the flame retardant polyolefin material has a good flame retardant effect.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model can perform electromagnetic shielding on the cable body and improve the transmission effect of electrical signals by setting the isolation sleeve. Under the action of the fixing ring and the support, the cable body and the cable sleeve can be indirectly fixed to improve the impact resistance of the cable body. Under the action of the protective layer, the sealing effect of the cable sleeve can be guaranteed.

[0014] 2. The utility model can ensure good flame retardant effect of the cable by setting the first flame retardant layer and the second flame retardant layer, and cooperate with the friction groove to improve the friction effect of the cable surface, thereby improving the installation stability of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 A front view of

[0017] Figure 3 For the utility model Figure 1 A sectional perspective view of .

[0018] In the figure: 1. cable sleeve; 2. support member; 3. fixing ring; 4. isolation sleeve; 5. cable body; 6. protective layer; 7. first flame retardant layer; 8. second flame retardant layer; 9. friction groove. DETAILED DESCRIPTION

[0019] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0020] See also Figure 1 , Figure 2 , Figure 3 A highly flame-retardant cable comprises a cable sheath 1, the inner wall of the cable sheath 1 is fixedly connected with a plurality of support members 2 arranged in a ring array, the surface of each support member 2 away from the cable sheath 1 is commonly fixedly connected with a fixing ring 3, the inner wall of the fixing ring 3 is fixedly connected with a plurality of isolation sleeves 4 arranged in a ring array, the inner wall of each isolation sleeve 4 is fixedly connected with a cable body 5, the inner wall of the cable sheath 1 is fixedly connected with two evenly distributed protective layers 6, the protective layers 6 are fixedly connected to the isolation sleeves 4, the outer side of the cable sheath 1 is fixedly sleeved with a first flame-retardant layer 7, the outer side of the first flame-retardant layer 7 is fixedly sleeved with a second flame-retardant layer 8, and the surface of the second flame-retardant layer 8 is provided with a plurality of friction grooves 9 arranged in a ring array.

[0021] See also Figure 1 , Figure 2 , Figure 3 The support member 2 is trapezoidal in shape as a whole. The support member 2 is made of heat-resistant silicone rubber. Through the setting of the support member 2, the fixing ring 3 can be supported and used, and the heat-resistant silicone rubber material has good heat resistance and flexibility. The isolation sleeve 4 is woven from annealed copper wire. Through the setting of the isolation sleeve 4, the cable body 5 can be electromagnetically shielded, and the annealed copper wire has a good electromagnetic shielding effect. The protective layer 6 is made of polysulfide sealant. Through the setting of the protective layer 6, the cable sleeve 1 can be sealed, and the polysulfide sealant material has good sealing and flexibility effects.

[0022] See also Figure 1 , Figure 2 , Figure 3 The first flame retardant layer 7 is made of flame retardant glass fiber. By setting the first flame retardant layer 7, the flame retardant effect of the cable sheath 1 can be improved, and the flame retardant glass fiber material has good flame retardancy. The second flame retardant layer 8 is made of flame retardant polyolefin. By setting the second flame retardant layer 8, the flame retardancy of the cable sheath 1 can be improved, and the flame retardant polyolefin material has good flame retardancy.

[0023] The specific implementation process of the utility model is as follows: when it is necessary to use a highly flame-retardant cable, the cable body 5 can be electromagnetically shielded by the setting of the isolation sleeve 4 to improve the transmission effect of the electrical signal. Under the action of the fixing ring 3 and the support 2, the cable body 5 and the cable sleeve 1 can be indirectly fixed to improve the impact resistance of the cable body 5, and under the action of the protective layer 6, the sealing effect of the cable sleeve 1 can be guaranteed. Through the setting of the first flame-retardant layer 7 and the second flame-retardant layer 8, the good flame-retardant effect of the cable can be guaranteed, and with the action of the friction groove 9, the friction effect of the cable surface can be improved, thereby improving the placement stability of the cable.

[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly flame-retardant cable, comprising a cable sheath (1), characterized in that: The inner wall of the cable sleeve (1) is fixedly connected to a plurality of support members (2) arranged in a ring array, and the surface of each support member (2) on the side away from the cable sleeve (1) is commonly fixedly connected to a fixing ring (3), and the inner wall of the fixing ring (3) is fixedly connected to a plurality of isolation sleeves (4) arranged in a ring array, and the inner wall of each isolation sleeve (4) is fixedly connected to a cable body (5), and the inner wall of the cable sleeve (1) is fixedly connected to two evenly distributed protective layers (6), and the protective layers (6) are fixedly connected to the isolation sleeves (4), and the outer side of the cable sleeve (1) is fixedly connected to a first flame retardant layer (7), and the outer side of the first flame retardant layer (7) is fixedly connected to a second flame retardant layer (8), and the surface of the second flame retardant layer (8) is provided with a plurality of friction grooves (9) arranged in a ring array.

2. A highly flame-retardant cable according to claim 1, characterized in that: The support member (2) is trapezoidal in shape as a whole and is made of heat-resistant silicone rubber.

3. A highly flame-retardant cable according to claim 1, characterized in that: The isolation sleeve (4) is formed by braiding annealed copper wires.

4. A highly flame-retardant cable according to claim 1, characterized in that: The protective layer (6) is made of polysulfide sealant.

5. A highly flame-retardant cable according to claim 1, characterized in that: The first flame retardant layer (7) is made of flame retardant glass fiber.

6. A highly flame-retardant cable according to claim 1, characterized in that: The second flame retardant layer (8) is made of flame retardant polyolefin material.

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