CN112751308B - Explosion-proof shell for cable - Google Patents
Explosion-proof shell for cable Download PDFInfo
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- CN112751308B CN112751308B CN202110133797.2A CN202110133797A CN112751308B CN 112751308 B CN112751308 B CN 112751308B CN 202110133797 A CN202110133797 A CN 202110133797A CN 112751308 B CN112751308 B CN 112751308B
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- shell
- explosion
- proof
- cable
- columnar
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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
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention discloses an explosion-proof shell for a cable, which comprises a shell, an explosion-proof cavity formed in the shell and a cable connector, wherein the shell is provided with a plurality of explosion-proof grooves; the inner wall of the shell is provided with an explosion vibration sensor, an explosion pressure sensor, an aerosol fire extinguisher and a temperature sensor. The intelligent anti-explosion shell is reasonable in structural design and convenient to assemble and disassemble, has the functions of fire prevention, flame retardance, explosion prevention and intelligent acquisition and monitoring, can acquire and monitor the internal state of the anti-explosion shell in real time without manual regular inspection, and achieves the intelligence of the anti-explosion shell. The aerosol fire extinguisher that the shell is inside sets up can in time trigger when the explosion and put out a fire, is favorable to reducing the damage that the cable explosion caused from the source. The shell and the internal cable connector are provided with explosion-proof structures, so that a double explosion-proof mechanism is formed, the whole shell has excellent explosion-proof and fireproof functions, fire accidents caused by cable faults can be prevented, and the shell is prevented from being directly broken down and exploded to damage the surrounding environment.
Description
Technical Field
The invention relates to the field of explosion protection of cable joints, in particular to an explosion-proof shell for cables.
Background
Because the power grid requires more power supply links and longer transmission lines, the power cable intermediate head becomes an indispensable component of the urban power grid. After the middle joint of the high-voltage cable is installed, the middle joint of the high-voltage cable needs to be regularly inspected in the operation, and is also influenced by factors such as environmental moisture invasion, mechanical stress and the like, so that the middle joint is damaged or lost in an insulation manner, breakdown explosion accidents of the middle joint of the cable are caused, and the explosion shock waves and solid splashes can damage surrounding environments, crowds, power equipment, civil engineering foundations and the like. In view of the above, it is necessary to add protective equipment to the cable intermediate connector to effectively control the degree of damage when the cable connector explodes.
The explosion-proof shell of the cable commonly used at present is single in function, and explosion-proof effect is general, does not possess intelligent monitoring function in addition, leads to many accident occurrences that can avoid, consequently often appears the moment of criticality condition of becoming invalid for cable protection can not obtain effective guarantee.
Disclosure of Invention
The invention aims to provide an explosion-proof shell for a cable, which has reasonable structural design, so as to solve the problems in the prior art, and ensure that the device has the functions of fire prevention, flame retardance, explosion prevention and intelligent acquisition and monitoring.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides an explosion-proof shell for cables, which comprises a shell, an explosion-proof cavity formed in the shell and a cable connector matched with the explosion-proof cavity in shape, wherein the cable connector is used for realizing butt joint of cables at two ends, and the explosion-proof cavity is used for accommodating the cable connector;
the inner wall of the shell is provided with an explosion vibration sensor for detecting vibration in the shell, an explosion pressure sensor for detecting pressure change in the shell, an aerosol fire extinguisher for extinguishing fire and/or a temperature sensor for detecting the temperature of a cable intermediate joint.
Optionally, the cable connector is column shell structure, explosion-proof intracavity sets up and is used for supporting column shell structure's supporting rib, column shell structure with supporting rib joint.
Optionally, the inner wall of shell is provided with the pouring pore, the pouring gate is connected to the outer end of pouring pore, and the intercommunication in clearance between inner and the support rib is used for to the injecting glue in the clearance of support rib realizes the column shell structure with bond between the explosion-proof chamber.
Optionally, the columnar shell structure is formed by butt joint of two columnar half shells; the side wall of the columnar half shell is provided with a plurality of exhaust holes, the outer ends of the exhaust holes are provided with reinforcing steel bar grids, the inner ends of the exhaust holes are sealed through a rupture layer, and when the cable explodes, the rupture layer can be ruptured to complete pressure relief.
Optionally, an exhaust component is arranged on the shell; the exhaust assembly comprises a cross rod, a plurality of connecting rods hinged to the bottom of the cross rod and a pull ring fixed to the top of the cross rod, and the bottom ends of the connecting rods are connected with a fixing plate; the shell is provided with air holes, each connecting rod penetrates through the air holes and is hinged with the shell at the air holes, the cross rod, the shell and each connecting rod form a parallelogram connecting rod mechanism, and air hole baffles are arranged on two sides of each connecting rod; the air hole baffle is clamped with the air hole in a vertical state of the connecting rod, and the air hole is closed; pulling the pull ring to enable each connecting rod in the parallelogram connecting rod machine to incline, enabling the air hole baffle plate to be separated from the air hole, and enabling the air hole to be opened to realize exhaust in the explosion-proof cavity.
Optionally, a smoke alarm is installed on the inner wall of the shell.
Optionally, a fireproof buffer coating is sprayed on the inner wall of the shell and/or the outer wall of the cable connector; both ends of the shell are provided with a fire-retardant bag and fireproof cement gum.
Optionally, the columnar housing structure is molded from reinforced concrete.
Optionally, the shell comprises an upper half shell and a lower half shell butted with the upper half shell, and the edges of the upper half shell and the lower half shell are respectively provided with a connecting flange; and after the upper half shell is in butt joint with the lower half shell, the upper half tube and the lower half tube are in butt joint to form an observation hole.
Compared with the prior art, the invention has the following technical effects:
the explosion-proof shell for the cable provided by the invention has the advantages of reasonable structural design, convenience in disassembly and assembly, fireproof, flame-retardant, explosion-proof and intelligent acquisition and monitoring functions, and strong practicability. The intelligent acquisition function comprises vibration detection, pressure detection and temperature detection in the explosion-proof cavity, manual periodic inspection is not needed, the internal state of the explosion-proof shell can be acquired and monitored in real time, and the intelligence of the explosion-proof shell is realized. Meanwhile, an aerosol fire extinguisher is arranged in the shell, the quality guarantee period is very long, and the fire extinguishing can be triggered in time when explosion occurs, so that the damage caused by the explosion of the cable can be reduced from the source. In addition, the explosion-proof structures are arranged on the shell and the inner cable connector, so that a double explosion-proof mechanism is formed, the whole shell has an excellent explosion-proof and fireproof function, fire accidents caused by cable faults can be effectively prevented, the shell is prevented from being directly broken down and exploded, and damage to surrounding environments, crowds, power equipment, civil engineering foundations and the like is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed 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 other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the external structure of an explosion-proof housing for a cable according to the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view showing the internal structure of the explosion-proof housing for the cable of the present invention;
FIG. 4 is a schematic view of an exhaust assembly according to the present invention;
FIG. 5 is a schematic view of a cable connector according to the present invention;
FIG. 6 is a schematic view of the vent hole in the cable connector of the present invention;
wherein, the reference numerals are as follows: 1. a housing; 2. an explosion-proof cavity; 3. a cable connector; 31. a cylindrical half shell; 32. an exhaust hole; 33. a reinforcing steel bar grid; 34. a rupture layer; 4. a cable; 5. an explosion vibration sensor; 6. an explosion pressure sensor; 7. aerosol fire extinguishers; 8. a temperature sensor; 9. a support rib; 10. pouring the pore canal; 11. a sprue gate; 12. an exhaust assembly; 121. a cross bar; 122. a connecting rod; 123. a pull ring; 124. air holes; 125. an air hole baffle; 126. a fixing plate; 13. a smoke alarm; 14. fire-retardant bag; 15. fireproof cement; 16. a connecting flange; 17. and (5) observing the hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide an explosion-proof shell for a cable, which has reasonable structural design, so as to solve the problems in the prior art, and ensure that the device has the functions of fire prevention, flame retardance, explosion prevention and intelligent acquisition and monitoring.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Embodiment one:
as shown in fig. 1-6, the present embodiment provides an explosion-proof housing for a cable, which includes a housing 1, an explosion-proof cavity 2 formed inside the housing 1, and a cable connector 3 matching the shape of the explosion-proof cavity, wherein the cable connector 3 is used for realizing butt joint of cables 4 at two ends, and the explosion-proof cavity 2 is used for accommodating and fixing the cable connector 3. Meanwhile, the inner wall of the housing 1 is provided with an explosion vibration sensor 5 for detecting a vibration condition in the housing, an explosion pressure sensor 6 for detecting a pressure change in the housing, an aerosol fire extinguisher 7 for extinguishing a fire, and a temperature sensor 8 for detecting a temperature of an intermediate joint of a cable. In this embodiment, a smoke alarm is also mounted on the inner wall of the housing. The explosion vibration sensor 5, the explosion pressure sensor 6, the temperature sensor 8 and the smoke alarm are connected in parallel with a remote controller in the existing electric connection mode, the remote controller is provided with a display screen structure, a technician can acquire relevant parameter information in the explosion-proof shell in real time, and meanwhile, the remote controller can be assisted with a positioning device, so that when parameters are abnormal, the specific position of an accident cable joint can be acquired in time, and the remote controller is convenient for timely rush repair or prevention and control of damage. The explosion detection of the explosion-proof shell adopts the cooperation of the explosion vibration sensor 5 and the explosion pressure sensor 6, so that false alarm, missing alarm and false alarm conditions are reduced; the aerosol fire extinguisher 7 and the smoke alarm are used for monitoring the internal state of the explosion-proof shell in real time, and the aerosol fire extinguisher 7 can extinguish fire when the cable connector catches fire; the temperature sensor 8 includes a thermal resistor pt100 mounted in the housing 1 to detect the temperature of the cable connector 3, and a transmitter connected to the thermal resistor pt100 to feed back the detected temperature in real time. Through addding above-mentioned intelligent acquisition monitor function, need not artifical periodic inspection, can acquire and monitor the inside state of explosion-proof shell in real time, realized the intelligence and the security of explosion-proof shell.
In this embodiment, as shown in fig. 3, 5 and 6, the cable connector 3 is preferably a cylindrical housing structure, and the shape of the corresponding explosion-proof cavity is also cylindrical. The bottom in explosion-proof chamber 2 sets up the supporting rib 9 that is used for supporting column shell structure, and the top of supporting rib 9 is provided with the arc and holds in the palm for with column shell structure's outer wall profile matching, and this arc holds in the palm as integrated into one piece structure, can form certain joint force to column shell structure, prevents that column shell structure from becoming flexible in explosion-proof chamber, convenient to detach simultaneously.
In this embodiment, as shown in fig. 3, the inner wall of the housing 1 is provided with a pouring hole 10, the outer end of the pouring hole 10 is connected with a pouring gate 11, the inner end is communicated with the inside of the explosion-proof cavity 2, and is used for injecting glue into the gap of the supporting rib, so as to realize the adhesion between the columnar shell structure and the explosion-proof cavity, and further play a role in preventing the columnar shell structure from loosening in the explosion-proof cavity. Wherein, the pouring pore canal 10 is preferably filled with liquid flame retardant glue, so that the flame retardance of the explosion-proof shell is improved.
In this embodiment, as shown in fig. 5, the columnar shell structure is formed by butting two columnar half shells 31; the side wall of the columnar half shell 31 is provided with a plurality of exhaust holes 32, the outer ends of the exhaust holes 32 are provided with reinforcing steel bar grids 33, and the inner ends of the exhaust holes are sealed by a rupture layer 34. The columnar half shell 31 is preferably molded by reinforced concrete, and in normal use, the reinforcing grid 33 can strengthen the half shell, and the reinforcing bars of the reinforced concrete and the reinforcing grid are integrally arranged, so that the half shell has high compressive strength and shear strength, and is convenient to manufacture and low in cost. The rupture layer 34 is preferably a resin sheet having high heat resistance, fire resistance, and corrosion resistance, and is capable of closing the vent hole to prevent entry of foreign matter. When the accident happens, as shown in fig. 6, the rupture layer 34 is ruptured after the explosion at the cable joint to finish pressure relief, so that the explosion impact force is reduced, the cable explosion can be effectively prevented from directly damaging the shell, and the inner layer explosion-proof effect is achieved. If the columnar half shell 31 is not damaged or cracked after an accident, the columnar half shell can be reused only by replacing the cracking layer. The cable connector and the shell form a double explosion-proof mechanism, so that the whole shell has excellent explosion-proof and fireproof functions.
In this embodiment, as shown in fig. 1 to 4, an exhaust assembly 12 is provided on the housing 1; the exhaust assembly 12 comprises a cross bar 121, a plurality of connecting rods 122 hinged to the bottom of the cross bar 121, and a pull ring 123 fixed to the top of the cross bar 121; the shell 1 is provided with air holes 124, each connecting rod 122 penetrates through the corresponding air hole 124 and is hinged with the shell 1 at the air hole, at this time, the cross rod 121, the shell 1 and each connecting rod 122 form a parallelogram linkage mechanism, and both sides of each connecting rod 122 are provided with air hole baffles 125. As shown in fig. 3, in the vertical state of the connecting rod 122, the air hole baffle 125 is clamped with the air hole 124, the air hole 124 is closed, and meanwhile, the arc-shaped fixing plate 126 at the bottom end of the connecting rod 122 is just above the cable connector, so that the cable connector 3 can be prevented from being separated from the explosion-proof cavity 2 from the upper part, and the effect of fixing the cable connector is achieved. As shown in fig. 4, pulling the pull ring 123 makes each link 122 in the parallelogram link machine incline synchronously, the vent baffle 125 inclines to separate from the vent 124, the vent is opened, and the exhaust in the explosion-proof cavity 2 is realized. When the temperature sensor 8 detects that the temperature in the cavity is higher, the air hole 124 can be opened to perform air dispersion and ventilation, so that cable explosion caused by the over-high temperature in the cavity is avoided. The exhaust assembly 12 is simple in structure, easy and convenient to operate and high in practicability.
In this embodiment, the inner wall of the housing 1 and the outer wall of the cable connector 3 are both coated with a fireproof buffer coating, so as to effectively reduce damage to the housing caused by explosion splashes. And, both ends of the housing 1 are provided with a firestop bag 14 and a fire-proof cement 15. The dual sealing of the fireproof cement and the fire-retarding bag can ensure that explosion or combustion in the shell does not spread.
In this embodiment, as shown in fig. 1-2, the housing 1 includes an upper half shell and a lower half shell that is in butt joint with the upper half shell, and the edges of the upper half shell and the lower half shell are provided with connecting flanges 16; the connecting flange 16 is provided with a half tube of observation holes, and after the upper half shell and the lower half shell are butted, the half tube of the upper observation holes and the half tube of the lower observation holes are butted to form an observation hole 17, so that the internal condition of the shell can be conveniently checked at any time. A glass plate is embedded in the observation hole 17 and is fixedly connected with one of the observation hole half cylinders, so that the glass plate is convenient to split in the shell 1.
Therefore, the intelligent acquisition function that this embodiment set up includes explosion-proof intracavity vibrations detection, pressure detection and temperature detection, need not artifical periodic inspection, can acquire and monitor explosion-proof shell internal state in real time, has realized explosion-proof shell's intelligence. Meanwhile, an aerosol fire extinguisher is arranged in the shell, the quality guarantee period is very long, and the fire extinguishing can be triggered in time when explosion occurs, so that the damage caused by the explosion of the cable can be reduced from the source. In addition, this embodiment has all set up explosion-proof structure on shell and inside cable connection, has formed dual explosion-proof mechanism, makes whole casing possess superior explosion-proof fire prevention function, can effectively prevent the fire accident that cable trouble arouses, avoids the shell to directly by breaking down the explosion, causes damage to surrounding environment, crowd, power equipment, civil engineering basis etc..
It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. 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.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (8)
1. An explosion-proof casing for cable, characterized by: the anti-explosion device comprises a shell, an anti-explosion cavity formed in the shell and a cable connector matched with the anti-explosion cavity in shape, wherein the cable connector is used for realizing butt joint of cables at two ends, and the anti-explosion cavity is used for accommodating the cable connector;
the inner wall of the shell is provided with an explosion vibration sensor for detecting vibration in the shell, an explosion pressure sensor for detecting pressure change in the shell, an aerosol fire extinguisher for extinguishing fire and/or a temperature sensor for detecting the temperature of a middle joint of a cable;
an exhaust assembly is arranged on the shell; the exhaust assembly comprises a cross rod, a plurality of connecting rods hinged to the bottom of the cross rod and a pull ring fixed to the top of the cross rod, and the bottom ends of the connecting rods are connected with a fixing plate; the shell is provided with air holes, each connecting rod penetrates through the air holes and is hinged with the shell at the air holes, the cross rod, the shell and each connecting rod form a parallelogram connecting rod mechanism, and air hole baffles are arranged on two sides of each connecting rod; the air hole baffle is clamped with the air hole in a vertical state of the connecting rod, and the air hole is closed; pulling the pull ring to enable each connecting rod in the parallelogram connecting rod machine to incline, enabling the air hole baffle plate to be separated from the air hole, and enabling the air hole to be opened to realize exhaust in the explosion-proof cavity.
2. The explosion-proof housing for a cable according to claim 1, wherein: the cable connector is of a columnar shell structure, a supporting rib for supporting the columnar shell structure is arranged in the explosion-proof cavity, and the columnar shell structure is clamped with the supporting rib.
3. The explosion-proof housing for a cable according to claim 2, wherein: the inner wall of the shell is provided with a pouring pore canal, the outer end of the pouring pore canal is connected with a pouring gate, and the inner end is communicated with a gap between the supporting rib and is used for injecting glue into the gap between the supporting rib so as to bond the columnar shell structure with the explosion-proof cavity.
4. The explosion-proof housing for a cable according to claim 2, wherein: the columnar shell structure is formed by butt joint of two columnar half shells; the side wall of the columnar half shell is provided with a plurality of exhaust holes, the outer ends of the exhaust holes are provided with reinforcing steel bar grids, the inner ends of the exhaust holes are sealed through a rupture layer, and when the cable explodes, the rupture layer can be ruptured to complete pressure relief.
5. The explosion-proof housing for a cable according to claim 1, wherein: and a smoke alarm is arranged on the inner wall of the shell.
6. The explosion-proof housing for a cable according to claim 1, wherein: the inner wall of the shell and/or the outer wall of the cable connector is/are sprayed with a fireproof buffer coating; both ends of the shell are provided with a fire-retardant bag and fireproof cement gum.
7. The explosion-proof housing for a cable according to claim 2, wherein: the columnar shell structure is molded by reinforced concrete.
8. The explosion-proof housing for a cable according to claim 1, wherein: the shell comprises an upper half shell and a lower half shell which is in butt joint with the upper half shell, and connecting flanges are arranged at the edges of the upper half shell and the lower half shell; and after the upper half shell is in butt joint with the lower half shell, the upper half tube and the lower half tube are in butt joint to form an observation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110133797.2A CN112751308B (en) | 2021-01-22 | 2021-01-22 | Explosion-proof shell for cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110133797.2A CN112751308B (en) | 2021-01-22 | 2021-01-22 | Explosion-proof shell for cable |
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| CN112751308A CN112751308A (en) | 2021-05-04 |
| CN112751308B true CN112751308B (en) | 2023-06-16 |
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| CN202110133797.2A Active CN112751308B (en) | 2021-01-22 | 2021-01-22 | Explosion-proof shell for cable |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113363928B (en) * | 2021-05-21 | 2022-09-30 | 广州番禺电缆集团有限公司 | Explosion-proof isolation method and device of cable joint explosion-proof isolation equipment |
| CN113363929B (en) * | 2021-05-21 | 2022-04-19 | 广州番禺电缆集团有限公司 | Linkage explosion-proof control method and device for cable joint explosion-proof isolation equipment |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2095987A1 (en) * | 1992-05-13 | 1993-11-14 | William W. O. Gloslee | Access extension fitting |
| CA2424594A1 (en) * | 2003-04-04 | 2004-10-04 | Ciro Pasini | Method and apparatus for joining ends of wires and the like |
| CN104967086B (en) * | 2015-07-16 | 2017-03-08 | 国网上海市电力公司 | A kind of Integral high-pressure cable explosion-proof connector box |
| CN205565669U (en) * | 2016-04-01 | 2016-09-07 | 深圳市沃尔核材股份有限公司 | Explosion -proof fire prevention intermediate head |
| CN107546709A (en) * | 2017-09-26 | 2018-01-05 | 江苏华域电工设备科技有限公司 | A kind of cable intermediate joint waterproof anti-explosion box |
| CN209282805U (en) * | 2019-02-25 | 2019-08-20 | 四川赛康智能科技股份有限公司 | A kind of cable intermediate joint explosion-proof fire-extinguishing and state monitoring apparatus |
| CN211089100U (en) * | 2019-12-16 | 2020-07-24 | 上泰电气有限公司 | Intelligent fireproof flame-retardant explosion-proof shell for high-voltage cable intermediate joint |
| CN111130052A (en) * | 2020-01-20 | 2020-05-08 | 四川巨棠科技有限公司 | Cable intermediate joint explosion-proof box for monitoring cable running state and monitoring method |
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