CN216056286U - Silicone rubber cable intermediate joint with flame retardant function - Google Patents
Silicone rubber cable intermediate joint with flame retardant function Download PDFInfo
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- CN216056286U CN216056286U CN202121826541.1U CN202121826541U CN216056286U CN 216056286 U CN216056286 U CN 216056286U CN 202121826541 U CN202121826541 U CN 202121826541U CN 216056286 U CN216056286 U CN 216056286U
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Abstract
The utility model discloses a silicone rubber cable intermediate joint with a flame-retardant function, which comprises a cable, wherein the cable is arranged in an explosion-proof box in a penetrating manner, a joint assembly is arranged in the explosion-proof box and comprises a flame-retardant shell structure, waterproof cloth is coated on the outer side of the flame-retardant shell structure, and a wiring end connecting piece is arranged in the flame-retardant shell structure; the wiring end connecting piece comprises an electric field isolation sleeve, an insulation sleeve is sleeved in the electric field isolation sleeve, a conductive wiring pipe is sleeved in the insulation sleeve, and a wiring end of the cable is positioned in the conductive wiring pipe; the flame-retardant shell structure comprises a high-temperature-resistant shell, a cable penetrates through the high-temperature-resistant shell, a sealing ring is sleeved at the joint of the cable and the high-temperature-resistant shell, and locking nuts are connected to the outer side walls of two ends of the high-temperature-resistant shell in a threaded manner; the heat-insulating layer is bonded on the inner side of the high-temperature-resistant shell, and the fireproof coating layer is coated on the inner side of the heat-insulating layer. The utility model ensures the flame retardance, has good waterproofness and sealing property, and can effectively reduce the hidden trouble caused by the burning of the cable wiring end.
Description
Technical Field
The utility model relates to the technical field of cable connectors, in particular to a silicone rubber cable intermediate connector with a flame retardant function.
Background
With the development of the urbanization process, the number of cable tunnels is increased, cable lines in the tunnels are also increased gradually, cable intermediate connectors are weak links in the lines, tunnel fire accidents caused by intermediate connector faults occur for many times in recent years, and great hidden dangers are brought to the safe operation of a cable system. Cable intermediate head in the existing market can not play fine flame retardant efficiency, causes cable intermediate head burning very easily when taking place inside breakdown or outside burning to the conflagration takes place, causes the explosion even, has very big potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a silicone rubber cable intermediate joint with a flame retardant function, which is used for solving the problems in the prior art.
In order to achieve the purpose, the utility model provides the following scheme: the utility model provides a silicone rubber cable intermediate joint with a flame-retardant function, which comprises a cable, wherein the cable is arranged in an explosion-proof box in a penetrating manner, a joint assembly is arranged in the explosion-proof box, the joint assembly comprises a flame-retardant shell structure, waterproof cloth is coated on the outer side of the flame-retardant shell structure, and a wiring end connecting piece is arranged in the flame-retardant shell structure;
the wiring end connecting piece comprises an electric field isolating sleeve, an insulating sleeve is sleeved in the electric field isolating sleeve, a conductive wiring pipe is sleeved in the insulating sleeve, and a wiring end of the cable is positioned in the conductive wiring pipe;
the flame-retardant shell structure comprises a high-temperature-resistant shell, the cable penetrates through the high-temperature-resistant shell, a sealing ring is sleeved at the joint of the cable and the high-temperature-resistant shell, bosses with central holes are circumferentially fixed at two ends of the high-temperature-resistant shell, a plurality of clamping bulges are circumferentially fixed in the central holes of the bosses, an annular groove is circumferentially formed in the outer side wall of the sealing ring, the clamping bulges are inserted in the annular groove, and locking nuts are connected to the outer side walls at two ends of the high-temperature-resistant shell in a threaded manner;
the heat-resistant shell is characterized in that a heat-insulating layer is bonded on the inner side of the high-temperature-resistant shell, and a fireproof coating layer is coated on the inner side of the heat-insulating layer.
Preferably, the terminal end of the cable is press-fitted into the conductive terminal tube.
Preferably, connecting pipes are fixed at two ends of the explosion-proof box, the cable penetrates through the connecting pipes, and an explosion-proof sealing ring is sleeved between the connecting pipes and the cable.
Preferably, the explosion-proof box comprises an upper shell and a lower shell, and the upper shell is connected with the lower shell through a bolt.
Preferably, flanges are arranged on two sides of the upper shell and two sides of the lower shell, bolt holes are formed in the flanges, the bolt holes in the flange of the upper shell correspond to the bolt holes in the flange of the lower shell in a one-to-one mode, and bolts are detachably connected between the bolt holes.
Preferably, an energy release hole is formed in the upper portion of the upper shell, and a sealing plug is detachably connected in the energy release hole.
Preferably, the lengths of the insulating sleeve and the electric field isolation sleeve are both larger than that of the conductive wire connecting tube.
Preferably, an explosion-proof filler is filled between the waterproof cloth and the explosion-proof box.
The utility model discloses the following technical effects: the flame-retardant shell structure comprises a high-temperature-resistant shell, wherein a heat-insulating layer is bonded on the inner side of the high-temperature-resistant shell, a fireproof coating layer is coated on the inner side of the heat-insulating layer, the flame-retardant shell structure can effectively prevent the connection part of the wiring ends of the cables from burning under the combined action of a plurality of layers of structures, the two sides of the flame-retardant shell structure are provided with the sealing rings and the locking nuts, the flame-retardant shell structure can play a waterproof role, and the explosion-proof box can prevent the connection part of the wiring ends of the cables from exploding and damaging other cables.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a front view of a silicone rubber cable intermediate joint with flame retardant functionality according to the utility model;
FIG. 2 is a partial enlarged view of portion A of FIG. 1;
FIG. 3 is a partial enlarged view of the portion B in FIG. 1;
FIG. 4 is a partial enlarged view of the portion C in FIG. 1
Wherein, 1, a cable; 2. a conductive wire barrel; 3. an insulating sleeve; 4. an electric field isolation sleeve; 5. a high temperature resistant housing; 6. an explosion-proof box; 7. a connecting pipe; 8. a lock nut; 9. a seal ring; 10. a fire retardant coating layer; 11. a thermal insulation layer; 12. an annular groove; 14. an upper housing; 15. a lower housing; 16. a boss; 17. clamping the protrusion; 18. an explosion-proof seal ring; 19. a sealing plug; 20. a vent hole; 21. a waterproof cloth.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-4, the utility model provides a silicone rubber cable intermediate joint with a flame retardant function, which comprises a cable 1, wherein the cable 1 is arranged in an explosion-proof box 6 in a penetrating manner, a joint assembly is arranged in the explosion-proof box 6, the joint assembly comprises a flame retardant shell structure, waterproof cloth 21 is coated outside the flame retardant shell structure, and a wiring terminal connecting piece is arranged in the flame retardant shell structure; the wiring terminal connecting piece comprises an electric field isolating sleeve 4, an insulating sleeve 3 is sleeved in the electric field isolating sleeve 4, a conductive wiring tube 2 is sleeved in the insulating sleeve 3, and a wiring terminal of the cable 1 is positioned in the conductive wiring tube 2; the flame-retardant shell structure comprises a high-temperature-resistant shell 5, a cable 1 penetrates through the high-temperature-resistant shell 5, a sealing ring 9 is sleeved at the joint of the cable 1 and the high-temperature-resistant shell 5, bosses 16 with central holes are circumferentially fixed at two ends of the high-temperature-resistant shell 5, a plurality of clamping bulges 17 are circumferentially fixed in the central holes of the bosses 16, an annular groove 12 is circumferentially formed in the outer side wall of the sealing ring 9, the clamping bulges 17 are inserted in the annular groove 12, and locking nuts 8 are in threaded connection with the outer side walls at two ends of the high-temperature-resistant shell 5; a heat insulation layer 11 is bonded on the inner side of the high-temperature resistant shell 5, and a fireproof coating layer 10 is coated on the inner side of the heat insulation layer 11;
the insulating sleeve 3 is made of rubber, the electric field isolation sleeve 4 is made of copper and can play a role in homogenizing an electric field, the high-temperature resistant shell 5 is made of silicon boride, the heat insulation layer 11 is aluminum foil, the fireproof coating layer 10 is an intumescent fireproof coating, the main component is vermiculite, the multilayer structure plays a combined role in effectively preventing the burning of the connection part of the wiring end of the cable 1, the sealing ring 9 is arranged at the connection part of the high-temperature resistant shell 5 and the cable 1, the annular groove 12 is circumferentially arranged on the outer side wall of the sealing ring 9, the two ends of the high-temperature resistant shell 5 are provided with conical connecting pieces which have certain elasticity, the clamping bulge 17 can clamp the sealing ring 9 under the action of the locking nut 8 to play a sealing effect, the diameter of the wiring end of the cable 1 is increased by the conductive connecting pipe 2, so that current is not easy to generate heat when flowing through the wiring end of the cable 1, and the explosion-proof box 6 can effectively prevent the wiring end of the cable 1 from exploding, avoiding damage to the peripheral wires.
Further optimization scheme, the terminal pressure equipment of cable 1 is in electrically conductive wire barrel 2, and electrically conductive wire barrel 2's material is copper, and electrically conductive wire barrel 2 makes the more firm that the terminal is connected of cable 1 with the terminal crimping of cable 1, difficult disconnection.
According to the further optimization scheme, the connecting pipes 7 are fixed at the two ends of the explosion-proof box 6, the cable 1 penetrates through the connecting pipes 7, the explosion-proof sealing rings 18 are sleeved between the connecting pipes 7 and the cable 1, the explosion-proof sealing rings 18 are made of rubber, the explosion-proof box 6 is made of high-strength flame-retardant nylon fiber composite materials, and the explosion-proof sealing rings 18 enable the explosion-proof box 6 to be connected with the cable 1 more closely and are not easy to ventilate and permeate.
Further optimize the scheme, explosion-proof box 6 includes upper casing 14, lower casing 15, and upper casing 14 passes through bolted connection with lower casing 15, is convenient for cup joint explosion-proof box 6 in the cable 1 outside.
Further optimize the scheme, the both sides of going up casing 14 and casing 15 down all are provided with the flange, have seted up the bolt hole on the flange, go up the bolt hole on the 14 flanges of casing and the bolt hole one-to-one on the 15 flanges of casing down, can dismantle between the bolt hole and be connected with the bolt, be convenient for go up casing 14 and casing 15 fixed connection down, and firm in connection.
According to the further optimized scheme, the energy release hole 20 is formed in the upper portion of the upper shell 14, the sealing plug 19 is detachably connected in the energy release hole 20, once the middle joint of the cable 1 explodes, the energy release hole 20 can be rapidly opened through the sealing plug 19 on the energy release hole 20, and the explosion-proof box 6 is prevented from exploding to damage other cables.
Further optimization scheme, insulating cover 3 all is greater than electrically conductive wiring pipe 2 with 4 length on the electric field separation sleeve, can prevent effectively that 1 wiring end of cable current from revealing, effectively shields the magnetic field that 1 wiring end of cable produced.
According to the further optimized scheme, the explosion-proof filler is filled between the waterproof cloth 21 and the explosion-proof box 6, the explosion-proof filler is high-voltage cable sealant, and the waterproof effect can be achieved while explosion prevention is achieved.
When the anti-explosion cable connector is used, firstly, the lock nut 8, the sealing ring 9 and the anti-explosion sealing ring 18 are sleeved on the outer sides of two wiring ends of a cable 1, the end parts of the cable 1 on two sides are processed to expose the wiring end with a specified size, then the two wiring ends of the cable 1 are inserted into the conductive wiring tube 2 and are well pressed, the outer side of the conductive wiring tube 2 is coated with the insulating sleeve 3, the outer side of the insulating sleeve 3 is coated with the electric field isolation sleeve 4, the sealing ring 9 is placed in a central hole of the boss 16, the clamping bulge 17 of the boss 16 is inserted into the annular groove 12, and the lock nut 8 is screwed down; the outer side of the flame-retardant shell structure is coated with waterproof cloth 21, an explosion-proof sealing ring 18 is arranged between the connecting pipe 7 at the two ends of the explosion-proof box 6 and the cable 1, and an upper shell 14 and a lower shell 15 of the explosion-proof box 6 are fixedly connected through bolts.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (8)
1. The utility model provides a take fire-retardant function's silicon rubber cable intermediate head, includes cable (1), explosion-proof box (6), cable (1) is worn to establish inside explosion-proof box (6), its characterized in that: a joint assembly is arranged inside the explosion-proof box (6), the joint assembly comprises a flame-retardant shell structure, waterproof cloth (21) is coated outside the flame-retardant shell structure, and a wiring end connecting piece is arranged inside the flame-retardant shell structure;
the wiring terminal connecting piece comprises an electric field isolating sleeve (4), an insulating sleeve (3) is sleeved in the electric field isolating sleeve (4), a conductive wiring tube (2) is sleeved in the insulating sleeve (3), and a wiring terminal of the cable (1) is positioned in the conductive wiring tube (2);
the flame-retardant shell structure comprises a high-temperature-resistant shell (5), the cable (1) penetrates through the high-temperature-resistant shell (5), a sealing ring (9) is sleeved at the joint of the cable (1) and the high-temperature-resistant shell (5), bosses (16) with center holes are circumferentially fixed at two ends of the high-temperature-resistant shell (5), a plurality of clamping protrusions (17) are circumferentially fixed in the center holes of the bosses (16), annular grooves (12) are circumferentially formed in the outer side wall of the sealing ring (9), the clamping protrusions (17) are inserted in the annular grooves (12), and locking nuts (8) are in threaded connection with the outer side walls at two ends of the high-temperature-resistant shell (5);
the heat-insulating layer (11) is bonded on the inner side of the high-temperature-resistant shell (5), and the fireproof coating layer (10) is coated on the inner side of the heat-insulating layer (11).
2. The silicone rubber cable intermediate joint with flame retardant function of claim 1, characterized in that: the wiring end of the cable (1) is pressed in the conductive wiring tube (2).
3. The silicone rubber cable intermediate joint with flame retardant function of claim 1, characterized in that: the anti-explosion box is characterized in that connecting pipes (7) are fixed at two ends of the anti-explosion box (6), the cable penetrates through the connecting pipes (7), and anti-explosion sealing rings (18) are sleeved between the connecting pipes (7) and the cable.
4. The silicone rubber cable intermediate joint with flame retardant function of claim 1, characterized in that: the explosion-proof box (6) comprises an upper shell (14) and a lower shell (15), wherein the upper shell (14) is connected with the lower shell (15) through a bolt.
5. The silicone rubber cable intermediate joint with flame retardant function of claim 4, characterized in that: the improved bolt-free structure is characterized in that flanges are arranged on two sides of the upper shell (14) and two sides of the lower shell (15), bolt holes are formed in the flanges, the bolt holes in the flanges of the upper shell (14) correspond to the bolt holes in the flanges of the lower shell (15) in a one-to-one mode, and bolts are detachably connected between the bolt holes.
6. The silicone rubber cable intermediate joint with flame retardant function of claim 4, characterized in that: an energy release hole (20) is formed in the upper portion of the upper shell (14), and a sealing plug (19) is detachably connected into the energy release hole (20).
7. The silicone rubber cable intermediate joint with flame retardant function of claim 1, characterized in that: the lengths of the insulating sleeve (3) and the electric field isolating sleeve (4) are both greater than the length of the conductive wiring tube (2).
8. The silicone rubber cable intermediate joint with flame retardant function of claim 1, characterized in that: and an explosion-proof filler is filled between the waterproof cloth (21) and the explosion-proof box (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121826541.1U CN216056286U (en) | 2021-08-06 | 2021-08-06 | Silicone rubber cable intermediate joint with flame retardant function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121826541.1U CN216056286U (en) | 2021-08-06 | 2021-08-06 | Silicone rubber cable intermediate joint with flame retardant function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216056286U true CN216056286U (en) | 2022-03-15 |
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ID=80619408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121826541.1U Active CN216056286U (en) | 2021-08-06 | 2021-08-06 | Silicone rubber cable intermediate joint with flame retardant function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216056286U (en) |
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2021
- 2021-08-06 CN CN202121826541.1U patent/CN216056286U/en active Active
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