CN219575218U - B1-level flexible fireproof cable - Google Patents

Abstract

The utility model discloses a B1-level flexible fireproof cable which comprises an inorganic mineral insulating metal sheath, a protection tube and a protection box, wherein the inorganic mineral insulating metal sheath is movably arranged in the protection tube, a pur sheath is fixedly arranged in the inorganic mineral insulating metal sheath, and a pvc sheath is fixedly arranged in the pur sheath. According to the utility model, the pur sheath is fixedly arranged in the inorganic mineral insulating metal sheath, so that the wear resistance of the cable can be improved by utilizing the pur sheath, the advantages of high stability, softness, weather resistance, low temperature and high temperature resistance, antibiosis, flame retardance and good adhesiveness are achieved, the flexible property of the pvc sheath is matched, the cable is soft, flexible and foldable, wear-resistant, long in service life and matched with the polyurethane layer, the cable is protected, the flexible materials can be utilized to protect the cable when the cable is paved at a corner, the cable is prevented from being bent and damaged, and the service life of the cable is prolonged.

Description

B1-level flexible fireproof cable

Technical Field

The utility model relates to the technical field of cables, in particular to a B1-level flexible fireproof cable.

Background

The fire-proof cable mainly comprises two major types of UL series fire-proof cable and fire-proof low-smoke halogen-free cable, the imported products mainly come from America and Europe, and the fire-proof cable standards of America and Europe are mutually incompatible, so that fire-proof thinking is quite different, a first party and a design institute are in passive states when selecting products, each theory is respectively, finally, the fire-proof cable is often selected according to the actual condition of funds, and the flexibility of the fire-proof cable needs to be considered in the process of laying the fire-proof cable, so that the B1-level flexible fire-proof cable is provided.

Through searching, patent publication number CN210403261U discloses a flexible fireproof cable, which comprises a plurality of wire cores, a ceramic silicon tape is wrapped outside the wire cores, a polyester tape is wrapped outside the ceramic silicon tape, a double-sided composite tape is wrapped outside the polyester tape, fireproof cotton is filled between the wire cores, and a halogen-free low-smoke polyolefin sheath is wrapped outside the fireproof cotton. However, compared with the mica tape, the polyester tape in the comparison document has poorer flexibility, is not wear-resistant, is easy to bend and crack in the laying process, so that the service life of the cable is short, and compared with the mica tape, the halogen-free low-smoke polyolefin sheath has poor fireproof performance, and cannot better protect the cable when a fire disaster occurs, so that loss is caused.

Disclosure of Invention

The utility model aims to provide a B1-level flexible fireproof cable so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a B level flexible fireproof cable, includes inorganic mineral insulating metal sheath, protection tube and protection box, the inside activity of protection tube is provided with inorganic mineral insulating metal sheath, the inside of inorganic mineral insulating metal sheath is fixed to be provided with pur sheath, the inside of pur sheath is fixed to be provided with pvc sheath, the inside of pvc sheath is fixed to be provided with the polyurethane layer, the inside of polyurethane layer is fixed to be provided with the no halogen water proof layer, there is the mica layer no halogen water proof layer inside, the inside fixed mounting on mica layer has the oxygen layer that separates, the inside fixed mounting on oxygen layer has pp rope filling layer, the protection box has been cup jointed to one side of protection tube.

Preferably, an insulating shielding layer is fixedly arranged in the pp rope filling layer, and an insulating layer is fixedly arranged in the insulating shielding layer.

Preferably, a conductor shielding layer is fixedly arranged in the insulating layer, and a copper bar conductor is fixedly arranged in the conductor shielding layer.

Preferably, one end of the protection tube is movably provided with a first clamp (), the surface of the first clamp meter is movably provided with a second clamp, the inside of the first clamp and the inside of the second clamp are penetrated and provided with a connecting bolt, and one side of the second clamp is fixedly provided with a connecting block.

Preferably, one side of the connecting block is fixedly provided with a mounting plate, and a mounting bolt is arranged in the mounting plate in a penetrating manner.

Preferably, the clamping blocks are arranged on one side of the protection box at equal intervals, the clamping grooves are fixedly formed in the other side of the protection box, and the sealing cover is movably arranged on the top of the protection box through the hinge.

Compared with the prior art, the utility model has the beneficial effects that:

(1) Through the inside fixed pur sheath that is provided with at inorganic mineral insulating metal sheath, can utilize pur sheath to improve the wearability of cable, and stability is high, soft, weatherability, low temperature resistant high temperature, antibiotic, fire-retardant, the good benefit of adhesion, the easy performance of buckling of the pvc sheath of cooperation again has soft, the folding of bending at will, wear-resisting, long service life, and the cooperation is used with the polyurethane layer again, protects the cable, when the cable lay meets corner department, can utilize these flexible materials to protect the cable, prevent that the cable from buckling impaired, improve the life of cable.

(2) Through fixedly being provided with no steamed water-proof layer in polyurethane layer's inside, can utilize the inside no steamed water-proof layer cooperation of polyurethane layer to use, the benefit of no steamed water-proof layer has fire resistance, low smoke, no halogen, low corrosion, low toxicity, fire behavior is good, utilizes no steamed water-proof layer, mica layer and oxygen barrier layer to cooperate the use afterwards, improves high temperature resistant, fire prevention, fire-retardant performance.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic side view partial construction of a pvc jacket of the present utility model;

FIG. 4 is a schematic side view of a partial structure of an insulating shield layer according to the present utility model;

FIG. 5 is a schematic top view of a partial structure of the protection box of the present utility model;

fig. 6 is a partial perspective view of a first clamp of the present utility model.

In the figure: 1. an inorganic mineral insulating metal sheath; 101. pur sheath; 102. a pvc sheath; 103. a polyurethane layer; 104. a halogen-free water-resistant layer; 105. a mica layer; 106. an oxygen barrier layer; 107. pp rope filler layer; 108. an insulating shielding layer; 109. an insulating layer; 110. a conductor shielding layer; 111. a red copper bar guide; 2. a protective tube; 3. a first clamp; 301. a connecting bolt; 302. a second clamp; 4. a mounting plate; 401. a mounting bolt; 402. a connecting block; 5. a protection box; 501. a clamping groove; 502. a clamping block; 503. sealing cover.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-6, the utility model provides a B1-level flexible fireproof cable, which comprises an inorganic mineral insulating metal sheath 1, a protection tube 2 and a protection box 5, wherein a first clamp 3 is movably arranged at one end of the protection tube 2, a second clamp 302 is movably arranged on the surface of the first clamp 3, a connecting bolt 301 is arranged between the first clamp 3 and the second clamp 302 in a penetrating way, a connecting block 402 is fixedly arranged at one side of the second clamp 302, a mounting plate 4 is fixedly arranged at the other side of the connecting block 402, and a mounting bolt 401 is arranged inside the mounting plate 4 in a penetrating way;

specifically, as shown in fig. 1, 2 and 6, when in use, the first clamp 3 is movably mounted at one end of the protection tube 2, so that the protection tube 2 can be connected with the second clamp 302 by using the first clamp 3, then fixed by matching with the connecting bolt 301, then fixedly connected with the connecting block 402 by using the second clamp 302, and then fixed by penetrating the mounting plate 4 by using the mounting bolt 401, thus being convenient for the laying work of cables;

an inorganic mineral insulating metal sheath 1 is movably arranged in the protective tube 2, a pur sheath 101 is fixedly arranged in the inorganic mineral insulating metal sheath 1, a pvc sheath 102 is fixedly arranged in the pur sheath 101, and a polyurethane layer 103 is fixedly arranged in the pvc sheath 102;

specifically, as shown in fig. 1, fig. 3 and fig. 4, when in use, by fixedly arranging the pur sheath 101 in the inorganic mineral insulated metal sheath 1, the inorganic mineral insulated metal sheath 1 has the advantages of good fireproof performance, corrosion resistance, radiation resistance, water resistance, flame retardance, no pollution, high safety, wear resistance, high stability, softness, weather resistance, low temperature and high temperature resistance, antibiosis, flame retardance and good adhesiveness, and is matched with the flexible performance of the pvc sheath 102, the cable is soft, flexible, folded, wear-resistant, long in service life, and is protected by the polyurethane layer 103, the main material of the polyurethane layer 103 is generally called TPU, and is thermoplastic polyurethane elastomer rubber, the main functions of the thermoplastic polyurethane elastomer rubber are wear resistance, oil resistance, transparency and good elasticity, the flexibility of the cable is integrally improved, and when the cable is paved at a corner, the cable can be protected by using the flexible materials, the cable is prevented from being bent, and the service life of the cable is prolonged;

the inside of the polyurethane layer 103 is fixedly provided with a halogen-free waterproof layer 104, a mica layer 105 is arranged inside the halogen-free waterproof layer 104, an oxygen isolation layer 106 is fixedly arranged inside the mica layer 105, a pp rope filling layer 107 is fixedly arranged inside the oxygen isolation layer 106, an insulating shielding layer 108 is fixedly arranged inside the pp rope filling layer 107, an insulating layer 109 is fixedly arranged inside the insulating shielding layer 108, a conductor shielding layer 110 is fixedly arranged inside the insulating layer 109, and a copper bar conductor 111 is fixedly arranged inside the conductor shielding layer 110;

specifically, as shown in fig. 1, 3 and 4, when in use, the halogen-free water-resisting layer 104 is fixedly arranged in the polyurethane layer 103, so that the halogen-free water-resisting layer 104 in the polyurethane layer 103 can be used in a matched manner, the halogen-free water-resisting layer 104 has the advantages of flame retardance, low smoke, no halogen, low corrosion and low toxicity, and good fireproof performance, then the halogen-free water-resisting layer 104, the mica layer 105 and the oxygen-resisting layer 106 are used in a matched manner, so that the high temperature resistance, the fireproof performance and the flame retardance are improved, the volatilization of harmful smoke basically does not exist when the cable is burnt in open fire, and the toxic gases such as HCL and the like are not generated in the production, use and burning processes, so that the discharged acid gas is very little, the damage to personnel, equipment and instruments is small, the environment-friendly characteristic is more obvious, and the fireproof performance of the cable is integrally improved;

one side of the protection tube 2 is sleeved with a protection box 5, one side of the protection box 5 is equidistantly provided with a clamping block 502, the other side of the protection box 5 is fixedly provided with a clamping groove 501, and the top of the protection box 5 is movably provided with a sealing cover 503 through a hinge;

specifically, as shown in fig. 1, fig. 2 and fig. 5, during the use, through having cup jointed protection box 5 in one side of protection tube 2, can utilize protection box 5 to carry out the guard action to the surface of cable, one side of protection box 5 has fixture block 502 to carry out the activity setting in the inside of draw-in groove 501, and there is a sealed lid 503 at the top of protection box 5, and the groove has been seted up at the top of sealed lid 503, and the staff of being convenient for opens sealed lid 503 and carries out cable maintenance work, increases the live time of cable.

Working principle: when the cable protection device is used, firstly, the first clamp 3 can be connected with the second clamp 302, then the connecting bolt 301 is matched for fixing the protection tube 2, then the second clamp 302 is fixedly connected with the connecting block 402, then the mounting bolt 401 penetrates through the mounting plate 4 for fixing, the protection effect on the surface of the cable can be achieved by using the protection box 5, the clamping block 502 and the clamping block 502 on one side of the protection box 5 are movably arranged in the clamping groove 501, the sealing cover 503 is arranged at the top of the protection box 5, and the groove is formed in the top of the sealing cover 503;

secondly, the inorganic mineral insulating metal sheath 1 has the advantages of good fireproof performance, corrosion resistance, radiation resistance, water resistance, flame retardation resistance, no pollution, high safety, wear resistance, high stability, softness, weather resistance, low temperature and high temperature resistance, antibiosis, flame retardance and good adhesiveness of the pur sheath 101, and is matched with the flexible performance of the pvc sheath 102, so that the PVC sheath has the advantages of softness, random bending and folding and wear resistance;

finally, the halogen-free water-proof layer 104 inside the polyurethane layer 103 is matched with the polyurethane layer, and the halogen-free water-proof layer 104 has the advantages of flame retardance, low smoke, no halogen, low corrosion, low toxicity and good fireproof performance, and then the halogen-free water-proof layer 104, the mica layer 105 and the oxygen-proof layer 106 are matched with each other for use.

It should be noted that while the embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a level B1 flexible fireproof cable, includes inorganic mineral insulating metal sheath (1), protection tube (2) and protection box (5), its characterized in that: the inside activity of protection tube (2) is provided with inorganic mineral insulation metal sheath (1), the inside fixed pur sheath (101) that is provided with of inorganic mineral insulation metal sheath (1), the inside fixed pvc sheath (102) that is provided with of pur sheath (101), the inside fixed polyurethane layer (103) that is provided with of pvc sheath (102), the inside fixed halogen-free water barrier (104) that is provided with of polyurethane layer (103), there is mica layer (105) in halogen-free water barrier (104) inside, the inside fixed mounting of mica layer (105) has oxygen barrier (106), the inside fixed mounting of oxygen barrier (106) has pp rope filling layer (107), protection box (5) have been cup jointed to one side of protection tube (2).

2. A class B1 flexible fire protection cable according to claim 1, wherein: an insulating shielding layer (108) is fixedly arranged in the pp rope filling layer (107), and an insulating layer (109) is fixedly arranged in the insulating shielding layer (108).

3. A class B1 flexible fire protection cable according to claim 2, wherein: a conductor shielding layer (110) is fixedly arranged in the insulating layer (109), and a copper bar conductor (111) is fixedly arranged in the conductor shielding layer (110).

4. A class B1 flexible fire protection cable according to claim 1, wherein: one end movable mounting of protection tube (2) has first anchor clamps (3), and the surface movable mounting of first anchor clamps (3) table has second anchor clamps (302), and inside of first anchor clamps (3) and second anchor clamps (302) is run through and is installed connecting bolt (301), and one side fixed mounting of second anchor clamps (302) has connecting block (402).

5. A class B1 flexible fire protection cable according to claim 4, wherein: one side of the connecting block (402) is fixedly provided with a mounting plate (4), and a mounting bolt (401) is arranged in the mounting plate (4) in a penetrating manner.

6. A class B1 flexible fire protection cable according to claim 1, wherein: clamping blocks (502) are mounted on one side of the protection box (5) at equal intervals, clamping grooves (501) are fixedly formed in the other side of the protection box (5), and sealing covers (503) are movably mounted on the top of the protection box (5) through hinges.