CN114709658B - Joint connecting device of fire-resistant power cable - Google Patents
Joint connecting device of fire-resistant power cable Download PDFInfo
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- CN114709658B CN114709658B CN202210458528.8A CN202210458528A CN114709658B CN 114709658 B CN114709658 B CN 114709658B CN 202210458528 A CN202210458528 A CN 202210458528A CN 114709658 B CN114709658 B CN 114709658B
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- connector
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- cable
- sealing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
- H01R13/5221—Sealing means between coupling parts, e.g. interfacial seal having cable sealing means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/465—Identification means, e.g. labels, tags, markings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
- H01R13/508—Bases; Cases composed of different pieces assembled by a separate clip or spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/003—Filling materials, e.g. solid or fluid insulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a connector connecting device of a fire-resistant power cable, which comprises a first connector and a second connector, wherein a cable groove is formed in the center position of one end, far away from each other, of the first connector and the second connector, a connecting groove is formed in the center position, close to each other, of the first connector and the second connector and communicated with the cable groove, the diameter of the cable groove is smaller than that of the connecting groove, and two symmetrically distributed arc-shaped grooves are formed in the first connector. According to the invention, the fixing between the connectors and the cable and between the two connectors are completed in the combining process of the two connectors, meanwhile, the cable can be fully wrapped according to the section shape of the cable to avoid gaps, weather-proof glue is automatically extruded in the sealing groove to form a ring shape, and gaps between the first connector and the second connector are filled, so that the two connectors are adhered and fixed to form a seal, the connection tightness is improved, and the installation is more convenient and quicker.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a connector connecting device of a fire-resistant power cable.
Background
After the cable is laid, the sections of wire must be connected as a whole, and these connection points are called cable joints. The cable joints in the middle of the cable line are called intermediate joints, while the cable joints at both ends of the line are called terminal heads. The cable connector is used for locking and fixing the incoming and outgoing lines, and plays a role in preventing water, dust and vibration.
When the current cable joint is used for cable connection, the connecting device is mostly sealed by adopting the sealing ring, the sealing ring is provided with a round shape, the section of the cable is not a complete round surface, so that certain gap tightness is insufficient between the sealing ring and the cable skin, the sealing performance is reduced after long-time use, the waterproof effect cannot be achieved, the problem that the conductive part is corroded due to the fact that the skin is missing at the joint of the cable joint, and the like is caused by long-time contact with air, the protection of the joint of each section of cable is not facilitated, and the joint connecting device of the fire-resistant power cable is provided.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a connector connecting device of a fire-resistant power cable.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a fire-resistant power cable's joint connecting device, includes first connector and second connector, the cable groove has been seted up to the one end central point that keeps away from each other of first connector and second connector, the spread groove and the cable groove intercommunication have been seted up to the central point that first connector and second connector are close to each other, the diameter of cable groove is less than the diameter of spread groove, two symmetrical distribution's arc wall has been seted up on the first connector, two symmetrical distribution's arc pieces of fixedly connected with on the second connector.
In the connector connecting device of the fire-resistant power cable, the first connector and the second connector are coaxially provided with the annular cavity around the connecting groove, the annular cavity is internally and slidably connected with the sealing slip ring in a sealing manner, one side cavity wall of the annular cavity, which is close to the cable groove, is fixedly connected with a plurality of first springs, one end of each first spring is fixedly connected with the sealing slip ring, two communication ports which are symmetrically distributed are formed in one side of the connecting groove, which are located by the first connector and the second connector, are communicated with the respective annular cavity, and the sealing slip ring in the second connector is fixedly connected with two push rods at the two communication ports.
In the connector connecting device of the fire-resistant power cable, annular grooves are formed in the cable groove walls of the first connector and the second connector, a circle of annular air bags are glued in each annular groove, and two air ducts are connected to each annular air bag in a sealing mode and are communicated with adjacent annular cavities in a sealing mode.
In the connector connecting device of the fire-resistant power cable, the connecting grooves of the first connector and the second connector are uniformly and fixedly connected with four pressing plates on the groove wall of one side, close to the cable groove, of each pressing plate, a plurality of protruding points are uniformly arranged on one face, facing the axis, of each pressing plate, one face, far away from the protruding points, of each pressing plate is fixedly connected with an extrusion block, one end, far away from the pressing plate, of each extrusion block penetrates through and extends into the annular cavity, one end, far away from the pressing plate, of each extrusion block is provided with a wedge-shaped structure, an inclined surface faces one side of a communicating opening, and the connecting part of each pressing plate and the groove wall is made of elastic materials.
In the connector connecting device of the fire-resistant power cable, a cavity is respectively formed in the first connector and the second connector, a piston plate is connected in the cavity in a sealing sliding mode, a communicating groove is formed in one side cavity wall of the cavity and communicated with the annular cavity, a limiting rod is connected in the communicating groove in a sealing sliding mode, the upper end of the limiting rod is fixedly connected with the piston plate, the lower end of the limiting rod abuts against the sealing slip ring, two second springs are arranged on one side, away from the limiting rod, of the piston plate and connected with the cavity wall of the cavity, and limiting grooves are formed in corresponding positions on the push rods.
In the above-mentioned fire-resistant power cable's joint connecting device, first connector and second connector are located the equal coaxial annular seal groove of seting up in one side of spread groove, every set up the catheter of L type on the gag lever post, set up through-hole and catheter intercommunication on the top pole wall of gag lever post, every set up communicating pipe and seal groove intercommunication on the cell wall of spread groove, the spread groove has been seted up on the cell wall that the communicating pipe is located, the pipe diameter of catheter is the same with the pipe diameter of communicating pipe, every be located piston plate in the cavity one side space filling of gag lever post has weather-proof glue.
In the connector connecting device of the fire-resistant power cable, the first connector is provided with the arc-shaped cavity around the connecting groove, the arc-shaped display strip is connected in a sealing sliding manner in the arc-shaped cavity, the arc-shaped transparent plate is fixedly connected in a sealing manner in the center of the bottom of the arc-shaped cavity, and one end of the arc-shaped cavity is filled with evaporating liquid.
In the connector connecting device of the fire-resistant power cable, the arc-shaped display strip is composed of a red warning display layer and a green safety display layer, and the warning display layer is located at one end, close to the evaporating liquid, of the arc-shaped display strip.
The invention has the following advantages:
1. according to the invention, the fixing between the connectors and the cable is completed in the combining process of the two connectors, so that the sliding is avoided, and meanwhile, the air in the annular cavity is pressed into the annular air bag to expand and attach with the cable skin, so that the cable can be fully wrapped according to the sectional shape of the cable, the occurrence of gaps is avoided, and the connection tightness is improved;
2. according to the invention, the first connector and the second connector are completely closed, so that the first connector and the second connector can be automatically fixed, weather-proof glue is extruded in the sealing groove to form a ring shape by self, and gaps between the first connector and the second connector are filled, so that the two connectors are adhered and fixed to form a seal, and the installation is more convenient and quicker;
3. when poor contact occurs at the cable joint, the invention utilizes abnormal temperature rise at the joint to automatically change the area of the transparent plate from the green safety display layer to the red warning display layer, so that the problem can be rapidly solved and overhauled and replaced when inspection personnel detect the transparent plate, thereby eliminating potential safety hazard and reducing unnecessary loss.
Drawings
Fig. 1 is a schematic structural view of a connector connecting device for a fire-resistant power cable according to the present invention;
FIG. 2 is a schematic view of another angle of a connector connection device for a fire-resistant power cable according to the present invention;
FIG. 3 is a schematic view showing the internal structure of a connector connecting device for a fire-resistant power cable according to the present invention;
FIG. 4 is a front cross-sectional view of a connector assembly for a fire resistant power cable according to the present invention;
FIG. 5 is an enlarged schematic view of FIG. 4 at A;
FIG. 6 is a schematic view of the structure of a first connector portion of the connector connecting device for a fire-resistant power cable according to the present invention;
fig. 7 is a side sectional view showing the structure of a first connector portion in a connector connecting device for a fire-resistant power cable according to the present invention.
In the figure: 101 first connector, 102 second connector, 2 cable duct, 3 spread groove, 4 arc grooves, 5 arc blocks, 6 annular chamber, 7 sealed sliding rings, 8 first springs, 9 intercommunication mouths, 10 push rods, 11 annular grooves, 12 annular air bags, 13 air ducts, 14 pressure plates, 15 extrusion blocks, 16 cavities, 17 piston plates, 18 intercommunication grooves, 19 spacing bars, 20 second springs, 21 liquid guide tubes, 22 seal grooves, 23 communication tubes, 24 convex points, 25 arc chambers, 26 arc display strips, 261 warning display layers, 262 safety display layers, 27 transparent plates and 28 spacing grooves.
Detailed Description
The technical solutions according to the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, which are for illustrative purposes only and are not intended to limit the scope of the present invention.
Referring to fig. 1-7, a connector connecting device of a fire-resistant power cable comprises a first connector 101 and a second connector 102, wherein a cable groove 2 is formed in the center position of one end, far away from each other, of the first connector 101 and the second connector 102, a connecting groove 3 is formed in the center position, close to each other, of the first connector 101 and the second connector 102, and is communicated with the cable groove 2, the diameter of the cable groove 2 is smaller than that of the connecting groove 3, two symmetrically distributed arc-shaped grooves 4 are formed in the first connector 101, and two symmetrically distributed arc-shaped blocks 5 are fixedly connected to the second connector 102.
The first connector 101 and the second connector 102 are coaxially provided with an annular cavity 6 around the connecting groove 3, the annular cavity 6 is internally provided with a sealing slip ring 7 in a sealing sliding manner, one side wall of the annular cavity 6, which is close to the cable groove 2, is fixedly connected with a plurality of first springs 8, one end of each first spring 8 is fixedly connected with the sealing slip ring 7, two symmetrically distributed communication ports 9 are formed in one side of the first connector 101 and one side of the second connector 102, which are located on the connecting groove 3, are communicated with the respective annular cavity 6, and the sealing slip ring 7 in the second connector 102 is fixedly connected with two push rods 10 at the two communication ports 9.
The groove walls of the cable grooves 2 of the first connector 101 and the second connector 102 are provided with annular grooves 11, a circle of annular air bags 12 are glued in each annular groove 11, and each annular air bag 12 is connected with two air ducts 13 in a sealing way and communicated with the adjacent annular cavity 6.
The connecting groove 3 of first connector 101 and second connector 102 is close to even fixedly connected with four clamp plates 14 on the one side cell wall of cable duct 2, and the one side towards the axis of every clamp plate 14 evenly is provided with a plurality of bumps 24, and the one side fixedly connected with extrusion piece 15 of bump 24 is kept away from to every clamp plate 14, and the one end that the clamp plate 14 was kept away from to every extrusion piece 15 runs through and extends to in the annular chamber 6, and the one end that the clamp plate 14 was kept away from to every extrusion piece 15 all is provided with wedge-shaped structure and inclined plane towards intercommunication mouth 9 one side, and clamp plate 14 and cell wall junction part adoption elastic material are made.
The first connector 101 and the second connector 102 are respectively provided with a cavity 16, a piston plate 17 is connected in the cavity 16 in a sealing sliding way, a communicating groove 18 is formed in one side cavity wall of the cavity 16 and communicated with the annular cavity 6, a limiting rod 19 is connected in the communicating groove 18 in a sealing sliding way, the upper end of the limiting rod 19 is fixedly connected with the piston plate 17, the lower end of the limiting rod 19 is propped against the sealing slip ring 7, two second springs 20 are arranged on one side, away from the limiting rod 19, of the piston plate 17 and are connected with the cavity wall of the cavity 16, and limiting grooves 28 are formed in corresponding positions on the two push rods 10, wherein the second springs 20 are in a compressed state.
The first connector 101 and the second connector 102 are located one side of the connecting groove 3 and are coaxially provided with annular sealing grooves 22, each limiting rod 19 is provided with an L-shaped liquid guide tube 21, the top rod wall of each limiting rod 19 is provided with a through hole which is communicated with the liquid guide tube 21, the groove wall of each communicating groove 18 is provided with a communicating pipe 23 which is communicated with the sealing groove 22, the groove wall of the communicating groove 18 where the communicating pipe 23 is located is provided with a liquid flowing groove, before the connecting device is used, the lower end pipe orifice of the liquid guide tube 21 and the liquid flowing groove are in a staggered state, the pipe diameter of the liquid guide tube 21 is identical to the pipe diameter of the communicating pipe 23, the space of one side of each cavity 16, which is located by the piston plate 17, of the limiting rod 19 is filled with weather-resistant glue, the weather-resistant glue has excellent weather-resistant performance, high-low temperature resistance is excellent, and the bonding property is excellent.
The arc chamber 25 has been seted up around spread groove 3 to first connector 101, sealed sliding connection has arc display strip 26 in the arc chamber 25, the bottom central point in arc chamber 25 puts sealed fixedly connected with curved transparent plate 27, the one end in arc chamber 25 is filled with the evaporating solution, arc display strip 26 comprises red warning display layer 261 and green safe display layer 262, warning display layer 261 is located arc display strip 26 and is close to evaporating solution one end, the evaporating solution adopts the boiling point to be 126 ℃ butyl acetate solution, be used for judging the condition of generating heat of cable joint department, first connector 101 and second connector 102 adopt hot good conductor material to make, on the one hand will be convenient for with heat conduction to the arc intracavity 25, on the other hand dispels the heat to the heat that produces when the cable current passes through, improve cable life.
The top cavity wall of the cavity 16 and one end cavity wall of the arc-shaped cavity 25 far away from the evaporating liquid are respectively provided with a small Kong Yue external communication for balancing air pressure.
When the device is used, before two cable heads are connected, one end of a cable groove 2 of a first connector 101 and one end of a second connector 102 are sleeved on the cable heads, the cable heads push the first connector 101 to be close to the second connector 102, the connection position of the cable is just positioned between the first connector 101 and the second connector 102, two push rods 10 on the second connector 102 are inserted into two communication ports 9 on the first connector 101, after the push rods 10 are propped against a sealing slip ring 7, under the interaction of force, the sealing slip ring 7 of the first connector 101 and the second connector 102 slides in the opposite direction, in the sliding process of the sealing slip ring 7, four pressing blocks 15 on the wall of a cavity are pressed first, so that four pressing plates 14 press the surface of the cable from four angles, the fixing between the connecting heads and the cable wires is completed through the protruding points 24, the sliding is avoided, meanwhile, the sealing slip ring 7 enables air in an annular cavity 6 to be added into an annular air bag 12 through an air guide pipe 13, the annular air bag 12 is inflated to be attached to the surface of the cable, the surface of the cable is fully wrapped according to the section of the cable, and the surface of the cable is fully wrapped, so that the sealing performance is avoided.
After the first connector 101 and the second connector 102 are completely closed, the positions of the two sealing slip rings 7 just release the sliding restriction on the limiting rod 19, at this time, the limiting rod 19 slides towards the annular cavity 6 under the action of the second spring 20 and is inserted into the limiting groove 28 of the push rod 10 to fix the first connector 101 and the second connector 102, in the sliding process of the limiting rod 19, the liquid guide tube 21 is connected with the liquid flowing groove, weather-proof glue in the cavity 16 is extruded by the piston plate 17 and sequentially enters the sealing groove 22 through the through holes, the liquid guide tube, the liquid flowing groove and the communicating tube 23, the weather-proof glue forms a ring shape in the sealing groove 22 to slowly fill gaps between the first connector 101 and the second connector 102 after contacting air, and the two connectors are adhered and fixed to form a seal.
When poor contact occurs after long-term time at the cable joint, abnormal temperature rise occurs at the joint, the temperature is conducted to the temperature of the arc-shaped cavity 25, the boiling point temperature of the evaporating liquid is exceeded, the evaporating liquid is vaporized and expanded to push the arc-shaped display strip 26 to slide in the arc-shaped cavity 25, the area where the transparent plate 27 is located is changed from the green safety display layer 262 to the red warning display layer 261, problems can occur rapidly when inspection personnel detect, maintenance and replacement are carried out, potential safety hazards are eliminated, and unnecessary losses are reduced.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The utility model provides a fire-resistant power cable's joint connecting device, includes first connector (101) and second connector (102), its characterized in that, cable groove (2) have been seted up to the one end central point that keeps away from each other of first connector (101) and second connector (102), connecting groove (3) and cable groove (2) intercommunication have been seted up to the central point that first connector (101) and second connector (102) are close to each other, the diameter of cable groove (2) is less than the diameter of connecting groove (3), two symmetrical distribution's arc wall (4) have been seted up on first connector (101), fixedly connected with two symmetrical distribution's arc piece (5) on second connector (102);
the first connector (101) and the second connector (102) are coaxially provided with annular cavities (6) around the connecting grooves (3), sealing slip rings (7) are connected in the annular cavities (6) in a sealing sliding mode, a plurality of first springs (8) are fixedly connected to one side cavity wall of each annular cavity (6) close to each cable groove (2), one end of each first spring (8) is fixedly connected with each sealing slip ring (7), two symmetrically distributed communication ports (9) are formed in one side of each first connector (101) and one side of each second connector (102) which are located in the connecting grooves (3) and are communicated with the corresponding annular cavity (6), and two push rods (10) are fixedly connected to the sealing slip rings (7) in the second connectors (102) at the two communication ports (9);
annular grooves (11) are formed in the groove walls of the cable grooves (2) of the first connector (101) and the second connector (102), a circle of annular air bags (12) are glued in each annular groove (11), and two air guide pipes (13) are connected to each annular air bag (12) in a sealing mode and are communicated with adjacent annular cavities (6) in a sealing mode;
four pressing plates (14) are uniformly and fixedly connected to the groove wall of one side, close to the cable groove (2), of the connecting groove (3) of the first connecting head (101) and the second connecting head (102), a plurality of protruding points (24) are uniformly arranged on one surface, facing the axis, of each pressing plate (14), an extrusion block (15) is fixedly connected to one surface, far away from the protruding points (24), of each pressing plate (14), one end, far away from the pressing plate (14), of each extrusion block (15) penetrates through and extends into the annular cavity (6), one end, far away from the pressing plate (14), of each extrusion block (15) is provided with a wedge-shaped structure, an inclined surface faces one side of the connecting opening (9), and the connecting part of the pressing plate (14) and the groove wall is made of elastic materials;
the piston rod is characterized in that a cavity (16) is formed in each of the first connector (101) and the second connector (102), a piston plate (17) is connected to one side of the cavity (16) in a sealing sliding mode, a communicating groove (18) is formed in one side of the cavity (16) and communicated with the annular cavity (6), a limiting rod (19) is connected to the communicating groove (18) in a sealing sliding mode, the upper end of the limiting rod (19) is fixedly connected with the piston plate (17), the lower end of the limiting rod (19) abuts against the sealing slip ring (7), two second springs (20) are arranged on one side, far away from the limiting rod (19), of the piston plate (17) and are connected with the cavity wall of the cavity (16), and limiting grooves (28) are formed in corresponding positions on the two push rods (10).
2. The connection device of a fire-resistant power cable according to claim 1, wherein the first connection head (101) and the second connection head (102) are located at one side of the connection groove (3) and are both coaxially provided with annular sealing grooves (22), each limiting rod (19) is provided with an L-shaped liquid guiding tube (21), the top rod wall of each limiting rod (19) is provided with a through hole which is communicated with the liquid guiding tube (21), the groove wall of each communication groove (18) is provided with a communicating tube (23) which is communicated with the sealing grooves (22), the groove wall of each communication groove (18) is provided with a liquid flowing groove, the pipe diameter of each liquid guiding tube (21) is identical to the pipe diameter of each communicating tube (23), and a space, located in the piston plate (17), at one side of each limiting rod (19) in each cavity (16) is filled with weather-resistant glue.
3. The connector connecting device of the fire-resistant power cable according to claim 1, wherein the first connector (101) is provided with an arc-shaped cavity (25) around the connecting groove (3), an arc-shaped display strip (26) is connected in the arc-shaped cavity (25) in a sealing sliding manner, an arc-shaped transparent plate (27) is fixedly connected in a sealing manner at the center of the bottom of the arc-shaped cavity (25), and one end of the arc-shaped cavity (25) is filled with evaporating liquid.
4. A connector assembly for fire resistant power cables according to claim 3, wherein the arcuate display strip (26) is comprised of a red warning display layer (261) and a green safety display layer (262), the warning display layer (261) being located at the end of the arcuate display strip (26) adjacent to the vaporising liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210458528.8A CN114709658B (en) | 2022-04-28 | 2022-04-28 | Joint connecting device of fire-resistant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210458528.8A CN114709658B (en) | 2022-04-28 | 2022-04-28 | Joint connecting device of fire-resistant power cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114709658A CN114709658A (en) | 2022-07-05 |
| CN114709658B true CN114709658B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210458528.8A Active CN114709658B (en) | 2022-04-28 | 2022-04-28 | Joint connecting device of fire-resistant power cable |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115954155B (en) * | 2023-02-17 | 2023-05-09 | 宇航电缆有限公司 | Compact and radiating safe type aerial cable |
| CN117780289B (en) * | 2024-02-27 | 2024-05-03 | 西派集团有限公司 | High sulfur-resistant combined type metal seal tubing head |
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| CN205723987U (en) * | 2016-05-05 | 2016-11-23 | 光红建圣股份有限公司 | Coaxial fitting structure |
| JP2019067744A (en) * | 2017-10-04 | 2019-04-25 | 矢崎総業株式会社 | connector |
| CN110518403A (en) * | 2019-08-27 | 2019-11-29 | 贵阳耘志电子技术有限公司 | Locking type waterproof network connector |
| CN110676646A (en) * | 2019-09-05 | 2020-01-10 | 广东坚宝电缆有限公司 | Fire-resistant power cable's joint connecting device |
| CN215989422U (en) * | 2021-11-05 | 2022-03-08 | 乐清市吉祥连接器有限公司 | MG type water joint |
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| CN114709658A (en) | 2022-07-05 |
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