CN211530245U

CN211530245U - Fireproof cable joint

Info

Publication number: CN211530245U
Application number: CN202020223351.XU
Authority: CN
Inventors: 芮黎春
Original assignee: Wuxi City Pu Cao Technology Co ltd
Current assignee: Wuxi City Pu Cao Technology Co ltd
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2020-09-18
Anticipated expiration: 2030-02-21

Abstract

The utility model discloses a fireproof cable connects relates to cable joint technical field, for solving current ball pivot support and can't carry out effectual centre gripping to the article that supports on the support at the in-process that uses, the relatively poor problem of shock attenuation performance moreover. The inside of loading board is provided with interface channel, interface channel's internally mounted has low smoke and zero halogen sheath, low smoke and zero halogen sheath's inside is provided with insulating sheath, insulating sheath is provided with fire prevention mud with low smoke and zero halogen sheath's clearance department, insulating sheath's internally mounted has cable joint, insulating sheath is provided with two, and two insulating sheath's one end all is provided with the ring flange, two insulating sheath passes through the connecting bolt fixed connection of installation on the ring flange.

Description

Fireproof cable joint

Technical Field

The utility model relates to a cable joint technical field specifically is a fireproof cable connects.

Background

The cable connector is also called a cable head. After the cable is laid, the sections of the cable must be connected together in order to form a continuous line, and these connections are called cable connectors. The cable joints at the middle of the cable run are called intermediate joints and the cable joints at the two ends of the run are called termination joints. The cable joint is used for locking and fixing incoming and outgoing lines, plays a role in water resistance, dust resistance and vibration resistance, and has the main functions of enabling the lines to be smooth, enabling the cables to be kept sealed, ensuring the insulation grade at the cable joint and enabling the cable joint to operate safely and reliably. If the sealing is poor, not only oil leakage causes oil-impregnated paper to dry up, but also moisture invades into the cable, so that the insulating property of the cable is reduced.

The existing mineral insulated cable joint has poor electrical insulation performance, so that the safety coefficient of the cable in the connection use process is low, and the cable has great limitation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fireproof cable connects to current mineral insulated cable joint electrical insulation nature that proposes in solving above-mentioned background art can be relatively poor, leads to the cable to connect the lower problem of in-process factor of safety who uses.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fireproof cable joint, includes the loading board, the inside of loading board is provided with interface channel, interface channel's internally mounted has low smoke and zero halogen sheath, low smoke and zero halogen sheath's inside is provided with insulating sheath, insulating sheath is provided with fire prevention mud with low smoke and zero halogen sheath's clearance department, insulating sheath's internally mounted has cable joint.

Preferably, the number of the insulating sheaths is two, the flange plates are arranged at one ends of the two insulating sheaths, and the two insulating sheaths are fixedly connected through connecting bolts arranged on the flange plates.

Preferably, two all be provided with the mounting groove on the inner wall of ring flange, the inside of mounting groove is provided with seal ring, and seal ring is located the joint gap department of two ring flanges.

Preferably, be provided with a plurality of pressure spring on interface channel's the inner wall, and a plurality of pressure spring is about interface channel's centre of a circle point symmetric distribution, pressure spring's one end is provided with the damping supporting seat, and damping supporting seat and interface channel's inner wall fixed connection, pressure spring's the other end is provided with the contact plate, and the contact plate closely laminates with the outer wall of low smoke and zero halogen sheath.

Preferably, the lower end of the bearing plate is provided with a base, the lower end of the base is provided with a bottom plate, four mounting holes are formed in the bottom plate, and the mounting holes and the bottom plate are of an integrated structure.

Preferably, both ends of the low-smoke zero-halogen sheath are provided with sealed ports, and the inner wall of each sealed port is tightly attached to the outer wall of the fireproof cable.

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

1. the utility model discloses nonmetal sheath mineral insulation fireproof cable annex can adopt the prefabricated joint of mill, it is insulating to adopt the isolated form outside the joint, insulating outer packing fire prevention mud, the outermost crowded package low smoke and zero halogen sheath technology of moulding plastics, the cable lays in the scene and need not to make the intermediate head again, the safety performance of this type of cable has greatly been improved, and reduce the work load that the field installation laid, it is relatively poor to have overcome current mineral insulation cable joint electrical insulation performance, lead to the cable at the lower problem of the in-process factor of safety of connecting the use.

2. Through installing low smoke and zero halogen sheath 1 into the inside interface channel 9 of loading board 3, compress tightly work to low smoke and zero halogen sheath 1 through a plurality of pressure spring 11 on the interface channel 9 inner wall, then aim at near wall or the ground of the near base 4 alignment installation place of loading board 3 lower extreme, make bottom plate 13 and wall or ground contact, through the internally mounted expansion bolts at mounting hole 14 with bottom plate 13 and wall or ground fixed mounting, thereby reach the purpose of quick fixed mounting cable joint.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the low-smoke halogen-free sheath of the present invention;

FIG. 3 is a schematic view of the internal structure of the loading plate of the present invention;

FIG. 4 is an enlarged schematic view of part A of the present invention;

in the figure: 1. a low smoke zero halogen sheath; 2. sealing the port; 3. a carrier plate; 4. a base; 5. an insulating sheath; 6. fire-proof mud; 7. a flange plate; 8. a connecting bolt; 9. a connecting channel; 10. a damping support seat; 11. a compression spring; 12. a contact plate; 13. a base plate; 14. mounting holes; 15. mounting grooves; 16. a gasket is provided.

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. 1-4, the present invention provides an embodiment: the utility model provides a fireproof cable joint, includes loading board 3, and the inside of loading board 3 is provided with interface channel 9, and interface channel 9's internally mounted has low smoke and zero halogen sheath 1, and low smoke and zero halogen sheath 1's inside is provided with insulating sheath 5, and insulating sheath 5 and low smoke and zero halogen sheath 1's clearance department are provided with fireproof mud 6, and insulating sheath 5's internally mounted has cable joint.

Further, insulating sheath 5 is provided with two, and the one end of two insulating sheath 5 all is provided with ring flange 7, and two insulating sheath 5 pass through 8 fixed connection of connecting bolt of installation on the ring flange 7, and two insulating sheath 5 that set up play the effect of parcel insulated cable joint, and ring flange 7 that the one end of two insulating sheath 5 all set up plays the effect of the sealed butt joint of two insulating sheath 5 of being convenient for.

Further, all be provided with mounting groove 15 on the inner wall of two ring flanges 7, the inside of mounting groove 15 is provided with seal ring 16, and seal ring 16 is located the joint gap department of two ring flanges 7, and the mounting groove 15 that all sets up on the inner wall of two ring flanges 7 plays the effect of the installation of being convenient for seal ring 16, and seal ring 16 that the inside of mounting groove 15 set up plays the effect of two ring flanges 7 joint gap of sealing.

Further, be provided with a plurality of pressure spring 11 on the inner wall of interface channel 9, and a plurality of pressure spring 11 is about interface channel 9's central point symmetric distribution, pressure spring 11's one end is provided with damping supporting seat 10, and damping supporting seat 10 and interface channel 9's inner wall fixed connection, pressure spring 11's the other end is provided with contact plate 12, and contact plate 12 closely laminates with low smoke and zero halogen sheath 1's outer wall, a plurality of pressure spring 11 that sets up on interface channel 9's the inner wall plays the effect of compressing tightly installation to low smoke and zero halogen sheath 1, damping supporting seat 10 that pressure spring 11's one end set up plays the effect that supplementary pressure spring 11 compressed tightly.

Further, the lower extreme of loading board 3 is provided with base 4, and the lower extreme of base 4 is provided with bottom plate 13, and the inside of bottom plate 13 is provided with four mounting holes 14, and mounting hole 14 and bottom plate 13 structure as an organic whole, and base 4 that the lower extreme of loading board 3 set up plays the effect of supporting loading board 3, and bottom plate 13 that the lower extreme of base 4 set up plays the effect of the loading board 3 installation of being convenient for.

Further, the both ends of low smoke and zero halogen sheath 1 all are provided with sealed port 2, and the inner wall of sealed port 2 closely laminates with fireproof cable's outer wall, and sealed port 2 that the both ends of low smoke and zero halogen sheath 1 all set up plays the effect that strengthens 1 both ends sealing performance of low smoke and zero halogen sheath, thereby sealed port 2's inner wall closely laminates with fireproof cable's outer wall and makes low smoke and zero halogen sheath 1 seal completely to the cable.

The working principle is as follows: during the use, adopt the prefabricated cable joint of mill, cable joint adopts installation insulating sheath 5 outward, insulating sheath 5 fills fire prevention mud 6 outward, outermost crowded package low smoke and zero halogen sheath 1 of moulding plastics reaches the purpose of sealing and insulating to fireproof cable joint department, the cable joint parcel back that finishes, install low smoke and zero halogen sheath 1 into the inside interface channel 9 of loading board 3, compress tightly work to low smoke and zero halogen sheath 1 through a plurality of pressure spring 11 on the interface channel 9 inner wall, then aim at near wall or the ground of the near installation site with base 4 of loading board 3 lower extreme, make bottom plate 13 and wall or ground contact, through the internally mounted expansion bolt at mounting hole 14 with bottom plate 13 and wall or ground fixed mounting, accomplish fireproof cable joint's installation work.

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. A fireproof cable joint, includes loading board (3), its characterized in that: the inside of loading board (3) is provided with interface channel (9), the internally mounted of interface channel (9) has low smoke and zero halogen sheath (1), the inside of low smoke and zero halogen sheath (1) is provided with insulating sheath (5), insulating sheath (5) are provided with fire prevention mud (6) with the clearance department of low smoke and zero halogen sheath (1), the internally mounted of insulating sheath (5) has cable joint.

2. A fire-resistant cable joint as claimed in claim 1, wherein: the insulating sheath (5) is provided with two, and the one end of two insulating sheaths (5) all is provided with ring flange (7), two insulating sheath (5) are through connecting bolt (8) fixed connection of installing on ring flange (7).

3. A fire-resistant cable joint as claimed in claim 2, wherein: two all be provided with mounting groove (15) on the inner wall of ring flange (7), the inside of mounting groove (15) is provided with seal ring (16), and seal ring (16) are located the joint gap department of two ring flanges (7).

4. A fire-resistant cable joint as claimed in claim 1, wherein: be provided with a plurality of pressure spring (11) on the inner wall of interface channel (9), and a plurality of pressure spring (11) are about the central point symmetric distribution of interface channel (9), the one end of pressure spring (11) is provided with damping supporting seat (10), and the inner wall fixed connection of damping supporting seat (10) and interface channel (9), the other end of pressure spring (11) is provided with contact plate (12), and contact plate (12) closely laminates with the outer wall of low smoke and zero halogen sheath (1).

5. A fire-resistant cable joint as claimed in claim 1, wherein: the lower extreme of loading board (3) is provided with base (4), the lower extreme of base (4) is provided with bottom plate (13), the inside of bottom plate (13) is provided with four mounting holes (14), and mounting hole (14) and bottom plate (13) structure as an organic whole.

6. A fire-resistant cable joint as claimed in claim 1, wherein: the both ends of low smoke and zero halogen sheath (1) all are provided with sealed port (2), and the inner wall of sealed port (2) and fireproof cable's outer wall closely laminates.