CN213459190U

CN213459190U - Fire-fighting special flame-retardant cable

Info

Publication number: CN213459190U
Application number: CN202023192647.9U
Authority: CN
Inventors: 韦伟洪
Original assignee: Guangxi Changyong Wire & Cable Co ltd
Current assignee: Guangxi Changyong Wire & Cable Co ltd
Priority date: 2020-12-27
Filing date: 2020-12-27
Publication date: 2021-06-15
Anticipated expiration: 2030-12-27

Abstract

The utility model discloses a special fire-retardant type cable of fire control, including fire-retardant polyfluoroethylene sheath, the inner wall fixedly connected with enhancement layer of fire-retardant polyfluoroethylene sheath, the inner wall fixedly connected with wire rope of enhancement layer, wire rope's outer wall fixedly connected with fireproof cotton layer, the inner wall of enhancement layer and the outer wall on fireproof cotton layer form first isolation layer, the inner wall fixedly connected with waterproof layer on fireproof cotton layer, the inner wall of waterproof layer and transmission device's outer wall form the second isolation layer. Through the design the utility model discloses a structure makes the device have good fire retardance, and when meetting high temperature environment, fire-retardant polyfluortetraethylene sheath is the first step of blockking to the intensity of a fire, and first isolation layer carries out the isolation of first step to the intensity of a fire simultaneously, and the cotton layer of preventing fires is the blockking of second step to the intensity of a fire simultaneously, and the second isolation layer can carry out the isolation of second step to the intensity of a fire to the fire resistance of reinforcing device prevents that the device is impaired under high temperature environment.

Description

Fire-fighting special flame-retardant cable

Technical Field

The utility model belongs to the technical field of the cable, concretely relates to fire control special use fire-retardant type cable.

Background

Cables are typically formed by twisting several or groups of at least two conductors, each group insulated from each other and often twisted around a center, with a highly insulating covering over the entire circumference. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like. The fire-fighting equipment is also provided with a fire-fighting special cable, the fire-fighting cable is suitable for providing centralized power supply for evacuation lighting and other important primary power supply loads when a building is in a fire, the important loads are supplied with power by alternating current commercial power through the mutual switching device, the mutual switching device is switched to the inverter for power supply immediately after the alternating current commercial power is cut off, and the power supply time is determined by the capacity of the storage battery.

However, the conventional fire-fighting special cable has the following problems in use:

1. when the special fire-fighting cable is used, the special fire-fighting cable is often in high-temperature environments such as fire and the like and is influenced by the environment, and the cable is often burnt, so that the cable cannot be normally used.

2. When the special fire-fighting cable is used, the field environment is often complex, and the cable is often trampled and extruded, so that the cable is easily damaged and the use is influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a special fire-retardant type cable of fire control possesses fire-retardant, durable advantage.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire control special flame-retardant type cable, includes fire-retardant polyvinyl fluoride sheath, the inner wall fixedly connected with enhancement layer of fire-retardant polyvinyl fluoride sheath, the inner wall fixedly connected with wire rope of enhancement layer, wire rope's outer wall fixedly connected with fireproof cotton layer, the inner wall of enhancement layer and the outer wall on fireproof cotton layer form first isolation layer, the inner wall fixedly connected with waterproof layer on fireproof cotton layer, the inside of waterproof layer is provided with buffer and transmission device, the inner wall of waterproof layer and transmission device's outer wall form the second isolation layer.

Preferably, buffer device's inside includes outer support piece, the inner wall fixedly connected with buffering post of outer support piece, the one end fixedly connected with inner support piece that outer support piece was kept away from to buffering post, buffer spring has been cup jointed to the outer wall of buffering post, buffer spring's both ends respectively with the inner wall fixed connection of outer support piece, inner support piece.

Preferably, the transmission device includes a protective layer inside, the protective layer is filled with a filling layer inside, and a trunk cable and a branch cable are arranged inside the filling layer.

Preferably, the outer walls of the main cable and the branch cable are fixedly connected with shielding layers, and the outer walls of the shielding layers are fixedly connected with buffer layers.

Preferably, the outer wall of the buffer layer is fixedly connected with the inner wall of the filling layer.

Preferably, the outer wall of the outer support sheet is fixedly connected with the inner wall of the waterproof layer, and the outer wall of the inner support sheet is fixedly connected with the outer wall of the protective layer.

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

1. through the design the utility model discloses a structure makes the device have good fire retardance, and when meetting high temperature environment, fire-retardant polyfluortetraethylene sheath is the first step of blockking to the intensity of a fire, and first isolation layer carries out the isolation of first step to the intensity of a fire simultaneously, and the cotton layer of preventing fires is the blockking of second step to the intensity of a fire simultaneously, and the second isolation layer can carry out the isolation of second step to the intensity of a fire to the fire resistance of reinforcing device prevents that the device is impaired under high temperature environment.

2. Through the buffer who sets up, increase the life of device, receive when trampling or extrudeing when the device, buffer cushions the extrusion force, receives when the extrusion, and buffer spring and buffering post shrink under the effect of pressure, cushion the extrusion force, and when the extrusion force disappeared, the device resets under buffer spring's effect to prevent that the device from being impaired, increase the life of device.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the buffering device of the present invention;

fig. 3 is a schematic structural diagram of the transmission device of the present invention.

In the figure: 1. a flame-retardant polyvinyl fluoride sheath; 2. an enhancement layer; 3. a wire rope; 4. a fireproof cotton layer; 5. a first isolation layer; 6. a waterproof layer; 7. a buffer device; 701. an outer support sheet; 702. a buffer column; 703. an inner support sheet; 704. a buffer spring; 8. a transmission device; 801. a protective layer; 802. a filling layer; 803. a trunk cable; 804. a branch cable; 805. a shielding layer; 806. a buffer layer; 9. a second isolation layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a special fire-retardant type cable of fire control, including fire-retardant polyvinyl fluoride sheath 1, the inner wall fixedly connected with enhancement layer 2 of fire-retardant polyvinyl fluoride sheath 1, the inner wall fixedly connected with wire rope 3 of enhancement layer 2, wire rope 3's outer wall fixedly connected with fireproof cotton layer 4, the inner wall of enhancement layer 2 and the outer wall of fireproof cotton layer 4 form first isolation layer 5, the inner wall fixedly connected with waterproof layer 6 on fireproof cotton layer 4, the inside of waterproof layer 6 is provided with buffer 7 and transmission device 8, the inner wall of waterproof layer 6 and transmission device 8's outer wall form second isolation layer 9.

In this embodiment, through the design the utility model discloses a structure makes the device have good fire resistance, when meetting high temperature environment, the fire-retardant polyvinyl fluoride sheath 1 is the first step of blockking to the intensity of a fire, and first isolation layer 5 carries out the isolation of first step to the intensity of a fire simultaneously, and the cotton layer of preventing fires 4 is the blockking of second step to the intensity of a fire simultaneously, and second isolation layer 9 can carry out the isolation of second step to the intensity of a fire to strengthen the fire resistance of device, prevent that the device is impaired under high temperature environment.

Specifically, the inside of the buffer device 7 includes an outer support piece 701, the inner wall of the outer support piece 701 is fixedly connected with a buffer column 702, one end of the buffer column 702 far away from the outer support piece 701 is fixedly connected with an inner support piece 703, the outer wall of the buffer column 702 is sleeved with a buffer spring 704, and two ends of the buffer spring 704 are respectively fixedly connected with the inner walls of the outer support piece 701 and the inner support piece 703.

In this embodiment, through the buffer 7 who sets up, increase the life of device, when the device received to trample or extrude, buffer 7 cushions the extrusion force, receives when extruding, and buffer spring 704 and buffering post 702 shrink under the effect of pressure, cushions the extrusion force, and when the extrusion force disappeared, the device resets under buffer spring 704's effect to prevent that the device from damaging, increase the life of device.

Specifically, the inside of the transmission device 8 includes a protective layer 801, the inside of the protective layer 801 is filled with a filling layer 802, and a main cable 803 and a branch cable 804 are provided inside the filling layer 802.

In this embodiment, the protection layer 801 and the filling layer 802 are used to protect the main cable 803 and the branch cable 804, and under the action of the protection layer 801 and the filling layer 802, the main cable 803 and the branch cable 804 are tightly wrapped to prevent the main cable 803 and the branch cable 804 from being damaged, and the main cable 803 and the branch cable 804 are used to transmit signals.

Specifically, the outer walls of the main cable 803 and the branch cable 804 are fixedly connected with a shielding layer 805, and the outer wall of the shielding layer 805 is fixedly connected with a buffer layer 806.

In this embodiment, the shielding layer 806 is used to protect the main cable 803 and the branch cable 804, prevent partial discharge between the main cable 803 and the branch cable 804 and other insulators, and buffer the external pressure by the buffer layer 805, so as to further protect the main cable 803 and the branch cable 804.

Specifically, the outer wall of the buffer layer 806 is fixedly connected with the inner wall of the filling layer 802.

In this embodiment, the buffer layer 806 is fixed to the filling layer 802, so that the main cable 803 and the branch cable 804 are fixed, and the main cable 803 and the branch cable 804 are prevented from moving.

Specifically, the outer wall of the outer support piece 701 is fixedly connected with the inner wall of the waterproof layer 6, and the outer wall of the inner support piece 703 is fixedly connected with the outer wall of the protective layer 801.

In this embodiment, the outer support piece 701 is fixed to the waterproof layer 6, and the inner support piece 703 is fixed to the protective layer 801, so that the buffer device 7 achieves a buffering effect, and the buffer device 7 can support the device itself.

The utility model discloses a theory of operation and use flow: during the use, lay the device in suitable position, and be connected both ends with external equipment respectively, when meetting high temperature environment, fire-retardant polyvinyl fluoride sheath 1 is the first step of blockking to the intensity of a fire, first isolation layer 5 carries out the first step's isolation to the intensity of a fire simultaneously, the cotton layer 4 of preventing fires is the blockking of second step to the intensity of a fire simultaneously, and second isolation layer 9 can carry out the isolation of second step to the intensity of a fire, thereby strengthen the fire resistance of device, prevent that the device is impaired under high temperature environment, when the device receives trampling or extrusion, buffer 7 cushions the extrusion force, when receiving the extrusion, buffer spring 704 and buffer column 702 shrink under the effect of pressure, cushion the extrusion force, when the extrusion force disappears, the device resets under buffer spring 704's effect, thereby prevent that the device is impaired, increase the life of device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fire control special use fire-retardant type cable, includes fire-retardant polyvinyl fluoride sheath (1), its characterized in that: the inner wall fixedly connected with enhancement layer (2) of fire-retardant polyvinyl fluoride sheath (1), the inner wall fixedly connected with wire rope (3) of enhancement layer (2), the outer wall fixedly connected with fireproof cotton layer (4) of wire rope (3), the inner wall of enhancement layer (2) and the outer wall of fireproof cotton layer (4) form first isolation layer (5), the inner wall fixedly connected with waterproof layer (6) of fireproof cotton layer (4), the inside of waterproof layer (6) is provided with buffer (7) and transmission device (8), the inner wall of waterproof layer (6) and the outer wall of transmission device (8) form second isolation layer (9).

2. The flame-retardant cable special for fire fighting according to claim 1, characterized in that: buffer (7) inside includes outer support piece (701), inner wall fixedly connected with buffering post (702) of outer support piece (701), one end fixedly connected with inner support piece (703) of outer support piece (701) are kept away from in buffering post (702), buffer spring (704) have been cup jointed to the outer wall of buffering post (702), buffer spring (704)'s both ends respectively with the inner wall fixed connection of outer support piece (701), inner support piece (703).

3. The flame-retardant cable special for fire fighting according to claim 2, characterized in that: the transmission device (8) comprises a protective layer (801) inside, a filling layer (802) is filled inside the protective layer (801), and a main cable (803) and a branch cable (804) are arranged inside the filling layer (802).

4. The flame-retardant cable special for fire fighting according to claim 3, characterized in that: the outer walls of the main cable (803) and the branch cable (804) are fixedly connected with a shielding layer (805), and the outer wall of the shielding layer (805) is fixedly connected with a buffer layer (806).

5. The flame-retardant cable special for fire fighting according to claim 4, characterized in that: the outer wall of the buffer layer (806) is fixedly connected with the inner wall of the filling layer (802).

6. The flame-retardant cable special for fire fighting according to claim 3, characterized in that: the outer wall of the outer supporting sheet (701) is fixedly connected with the inner wall of the waterproof layer (6), and the outer wall of the inner supporting sheet (703) is fixedly connected with the outer wall of the protective layer (801).