CN215007641U

CN215007641U - Fire-resistant damp-proof cable for subway

Info

Publication number: CN215007641U
Application number: CN202121630165.9U
Authority: CN
Inventors: 厉山河
Original assignee: Anhui Keli Special Cable Co ltd
Current assignee: Anhui Keli Special Cable Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2021-12-03
Anticipated expiration: 2031-07-19

Abstract

The utility model discloses a fire-resistant damp-proofing cable for subway, including the cable protection layer, the inboard of cable protection layer is equipped with fire-retardant layer, the inboard on fire-retardant layer is equipped with the dampproof course, the inboard joint of dampproof course has the spacing ring, the up end of spacing ring is equipped with the spacing groove, the inner wall of spacing ring four ends all is equipped with a rubber parting bead, the one end of spacing ring is equipped with sleeve pipe A, the other end of spacing ring is equipped with sleeve pipe B, sleeve pipe A's one end is equipped with the screw thread, sleeve pipe A and sleeve pipe B pass through screw thread interconnect, the upper end of spacing ring is equipped with the recess, rubber parting bead joint is in the inboard of recess. The utility model discloses a spacing ring prevents cable inner core mutual interference and influence, fixes and installs the spacing ring when carrying out the connection through sleeve pipe A and sleeve pipe B.

Description

Fire-resistant damp-proof cable for subway

Technical Field

The utility model relates to the technical field of cables, specifically be a fire-resistant damp-proofing cable for subway.

Background

With the rapid development of socio-economy, the wire and cable refer to materials used for power, communication and related transmission purposes, the "wire" and "cable" do not have strict limits, and products with small number of cores, small product diameter and simple structure are generally called wires, products without insulation are called bare wires, and other products are called cables; the cable with larger conductor cross section area (more than 6 square millimeters) is called a large wire, the cable with smaller conductor cross section area (less than or equal to 6 square millimeters) is called a small wire, the insulated wire is also called a wiring wire, and the high-resolution video display of the present day requires the high-performance cable to have the characteristics of low signal delay and low return loss.

However, the existing cables are not internally divided, and if a problem occurs in a certain cable, other cables are easily affected; therefore, the existing requirements are not met, and a fire-resistant and moisture-proof cable for the subway is provided for the cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-resistant damp-proofing cable for subway to solve the inside division that does not have of current cable that provides in the above-mentioned background art, if a certain strand cable goes wrong, lead to other cables to take place the influence scheduling problem easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-resistant damp-proofing cable for subway, includes the cable protection layer, the inboard of cable protection layer is equipped with fire-retardant layer, the inboard on fire-retardant layer is equipped with the dampproof course, the inboard joint of dampproof course has the spacing ring, the up end of spacing ring is equipped with the spacing groove, the inner wall of spacing ring four ends all is equipped with a rubber parting bead, the one end of spacing ring is equipped with sleeve pipe A, the other end of spacing ring is equipped with sleeve pipe B, sleeve pipe A's one end is equipped with the screw thread, sleeve pipe A and sleeve pipe B pass through screw thread interconnect, the upper end of spacing ring is equipped with the recess, rubber parting bead joint is in the inboard of recess.

Preferably, the outer surface of the cable protective layer is provided with a rubber protective layer.

Preferably, the flame retardant layer is a polyetherimide.

Preferably, the moisture-proof layer is a ceramic silicon rubber belt.

Preferably, the sleeve A and the sleeve B are divided into four areas by the rubber division bars, and a cable inner core is arranged in each area.

Preferably, one end of the thread is provided with an internal thread at the inner side of the sleeve B.

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

1. the utility model discloses an inboard joint of dampproof course has the spacing ring, and the up end of spacing ring is equipped with the spacing groove, and the inner wall of spacing ring four ends all is equipped with a rubber parting bead, and the rubber parting bead has divided into four regions with sleeve pipe A and sleeve pipe B, and all is equipped with a cable inner core in the region, and then the cable inner core of being convenient for passes through the rubber parting bead, prevents cable inner core mutual interference and influence;

2. the utility model discloses an one end of spacing ring is equipped with sleeve pipe A, and the other end of spacing ring is equipped with sleeve pipe B, and sleeve pipe A's one end is equipped with the screw thread, and then fixed and the installation to the spacing ring when sleeve pipe A and sleeve pipe B of being convenient for connect.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is a side view of the utility model in its entirety;

fig. 3 is a schematic view of a local structure of the stop collar of the present invention.

In the figure: 1. a cable protective layer; 2. a flame retardant layer; 3. a moisture barrier; 4. a limiting ring; 5. rubber parting strips; 6. an inner core of the cable; 7. a sleeve A; 8. a sleeve B; 9. a thread; 10. a limiting groove; 11. and (4) a groove.

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.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: the utility model provides a fire-resistant damp-proofing cable for subway, including cable protection layer 1, cable protection layer 1's inboard is equipped with fire-retardant layer 2, fire-retardant layer 2's inboard is equipped with dampproof course 3, dampproof course 3's inboard joint has spacing ring 4, spacing ring 4's up end is equipped with spacing groove 10, the inner wall of spacing ring 4 four ends all is equipped with a rubber parting bead 5, spacing ring 4's one end is equipped with sleeve pipe A7, spacing ring 4's the other end is equipped with sleeve pipe B8, sleeve pipe A7's one end is equipped with screw thread 9, sleeve pipe A7 and sleeve pipe B8 pass through screw thread 9 interconnect, spacing ring 4's upper end is equipped with recess 11, the inboard at recess 11 of rubber parting bead 5 joint, wholly prevent cable inner core 6 mutual interference and influence through spacing ring 4, fixed and installation to spacing ring 4 when connecting through sleeve pipe A7 and sleeve pipe B8.

Further, the outer surface of the cable protection layer 1 is provided with a rubber protection layer, so that the cable inner core 6 is protected through the cable protection layer 1.

Further, the flame retardant layer 2 is polyetherimide, thereby facilitating flame retardancy through the flame retardant layer 2.

Further, the dampproof course 3 is the silicon rubber area of pottery, and then is convenient for carry out dampproofing through dampproof course 3.

Further, rubber parting bead 5 has separated into four regions with sleeve pipe A7 and sleeve pipe B8, and all is equipped with a cable inner core 6 in the region, and then is convenient for cable inner core 6 to pass through rubber parting bead 5, prevents cable inner core 6 mutual interference and influence.

Further, one end of the screw thread 9 is internally threaded on the inner side of the sleeve B8, thereby facilitating the assembly of the sleeve a7 and the sleeve B8.

The working principle is as follows: when in use, whether each part is intact is firstly detected, after the detection is finished, a limit ring 4 is clamped on the inner side of a moisture-proof layer 3, a limit groove 10 is arranged on the upper end face of the limit ring 4, a rubber division bar 5 is arranged on the inner wall of each end of the limit ring 4, the sleeve A7 and the sleeve B8 are divided into four areas by the rubber division bar 5, a cable inner core 6 is arranged in each area, the cable inner core 6 can conveniently pass through the rubber division bar 5 to prevent the mutual interference and influence of the cable inner cores 6, a sleeve A7 is arranged at one end of the limit ring 4, a sleeve B8 is arranged at the other end of the limit ring 4, a thread 9 is arranged at one end of the sleeve A7, the limit ring 4 is fixed while the sleeve A7 and the sleeve B8 are conveniently connected, a rubber protective layer is arranged on the outer surface of the cable protective layer 1 to conveniently protect the cable inner core 6 through the cable protective layer 1, and the flame-retardant layer 2 is polyetherimide, and then be convenient for carry on fire-retardantly through fire-retardant layer 2, be ceramic silicon rubber area through dampproof course 3, and then be convenient for carry on dampproofing through dampproof course 3.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a fire-resistant damp-proofing cable for subway, includes cable protection layer (1), its characterized in that: the inboard of cable protection layer (1) is equipped with fire-retardant layer (2), the inboard of fire-retardant layer (2) is equipped with dampproof course (3), the inboard joint of dampproof course (3) has spacing ring (4), the up end of spacing ring (4) is equipped with spacing groove (10), the inner wall of spacing ring (4) four ends all is equipped with one rubber parting bead (5), the one end of spacing ring (4) is equipped with sleeve pipe A (7), the other end of spacing ring (4) is equipped with sleeve pipe B (8), the one end of sleeve pipe A (7) is equipped with screw thread (9), sleeve pipe A (7) and sleeve pipe B (8) are through screw thread (9) interconnect, the upper end of spacing ring (4) is equipped with recess (11), rubber parting bead (5) joint is in the inboard of recess (11).

2. The fire-resistant and moisture-proof subway cable according to claim 1, wherein: and a rubber protective layer is arranged on the outer surface of the cable protective layer (1).

3. The fire-resistant and moisture-proof subway cable according to claim 1, wherein: the flame retardant layer (2) is polyetherimide.

4. The fire-resistant and moisture-proof subway cable according to claim 1, wherein: the moisture-proof layer (3) is a ceramic silicon rubber belt.

5. The fire-resistant and moisture-proof subway cable according to claim 1, wherein: the rubber division bar (5) divides the sleeve A (7) and the sleeve B (8) into four areas, and a cable inner core (6) is arranged in each area.

6. The fire-resistant and moisture-proof subway cable according to claim 1, wherein: and one end of the thread (9) is positioned on the inner side of the sleeve B (8) and is provided with an internal thread.