CN212462752U - Explosion-proof box of cable intermediate head - Google Patents
Explosion-proof box of cable intermediate head Download PDFInfo
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- CN212462752U CN212462752U CN202020979431.8U CN202020979431U CN212462752U CN 212462752 U CN212462752 U CN 212462752U CN 202020979431 U CN202020979431 U CN 202020979431U CN 212462752 U CN212462752 U CN 212462752U
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Abstract
The utility model discloses an explosion-proof box of cable intermediate head, including two explosion-proof casings of mutually supporting and installing a plurality of cable support frames in explosion-proof casing, the cable support frame one-to-one in two explosion-proof casings, explosion-proof casing is by high strength combined material one time die-casting shaping, and the sealed unsmooth butt joint structure of adoption between two explosion-proof casings, imbeds high temperature resistant sealing strip in unsmooth butt joint structure, and cable exit after two explosion-proof casing concatenations is equipped with at least round waterproof sealing circle. The utility model discloses an explosion-proof housing adopts high strength combined material one-time die-casting shaping, has superstrong explosion-proof ability, when cable intermediate head takes place electrical explosion, can be with the high-pressure draught, flame and the piece restriction that produce in explosion-proof box, avoided the accident to enlarge, guarantee peripheral facility and personnel's safety adopt cable support frame supporting cable simultaneously, avoid because the cable rocks and causes the damage with explosion-proof housing frictional contact, extension cable life.
Description
Technical Field
The utility model relates to a distribution appurtenance especially relates to an explosion-proof box of cable intermediate head.
Background
The cable channel or the cable intermediate head in the direct-buried environment, because relatively hidden, it is inconvenient to monitor and maintain, when the cable intermediate head takes place the electric explosion, can produce high-pressure draught, flame and piece, produce the electric accident easily, even the accident enlarges the safety that endangers peripheral facilities and personnel.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the defect that exists among the above-mentioned prior art and not enough, the explosion-proof casing that provides adopts the one-time die-casting shaping of high strength combined material, superstrong explosion-proof ability has, when the cable intermediate head takes place electrical explosion, can be with the high-pressure draught that produces, flame and piece restriction in explosion-proof box, avoided the accident to enlarge, guarantee peripheral facility and personnel safety, adopt cable support frame supporting cable simultaneously, avoid causing the damage because the cable rocks and explosion-proof casing frictional contact, extension cable life's the explosion-proof box of cable intermediate head.
The technical scheme of the utility model: the utility model provides an explosion-proof box of cable intermediate head, includes two explosion-proof casings of mutually supporting and installs a plurality of cable support frames in explosion-proof casing, the cable support frame one-to-one in two explosion-proof casings, explosion-proof casing is by the one-time die-casting shaping of high strength combined material, and the sealed unsmooth butt joint structure that adopts between two explosion-proof casings, imbeds high temperature resistant sealing strip in unsmooth butt joint structure, and the cable exit after two explosion-proof casing concatenations is equipped with at least round waterproof sealing washer.
The utility model discloses an explosion-proof housing adopts high strength combined material one-time die-casting shaping, has superstrong explosion-proof ability, when cable intermediate head takes place electrical explosion, can be with the high-pressure draught, flame and the piece restriction that produce in explosion-proof box, avoided the accident to enlarge, guarantee peripheral facility and personnel's safety adopt cable support frame supporting cable simultaneously, avoid because the cable rocks and causes the damage with explosion-proof housing frictional contact, extension cable life.
Preferably, one side of the explosion-proof shell is provided with a clamping convex strip, the other side of the explosion-proof shell is provided with a clamping groove matched with the clamping convex strip, and when the two explosion-proof shells are spliced into the whole explosion-proof box, the clamping convex strip of one explosion-proof shell is inserted into the clamping groove of the other explosion-proof shell to press the high-temperature-resistant sealing strip in the clamping groove.
This structure ensures the sealing of the assembly between the two explosion-proof housings.
Two cable support frames are arranged in each explosion-proof shell, each cable support frame comprises a semicircular cable support ring and two support ring fixing rods, and the semicircular cable support rings of the cable support frames which correspond to each other in the two explosion-proof shells are combined together to form a complete circular cable support ring.
The structure ensures that the cable inside the explosion-proof box is positioned at the central position of the explosion-proof box, and further avoids damage caused by the friction contact between the cable and the explosion-proof shell of the explosion-proof box.
Preferably, the two ends of the explosion-proof shell are provided with clamping teeth matched with the waterproof sealing ring, and the inlet and the outlet of the cable spliced by the two explosion-proof shells form a clamping gear ring matched with the waterproof sealing ring.
The structure enables the quantity of the waterproof sealing rings to be adjusted by adopting an inner layer stripping mode according to the diameter of an actual cable, and the clamping teeth of the explosion-proof shell are matched for pressing and sealing. The whole explosion-proof box can effectively cut off moisture and humidity at the two ends of the inlet and the outlet of the cable, so that the cable can run safely.
Preferably, the high-temperature-resistant sealing strip is a high-temperature-resistant silica gel waterproof sealing strip, and the waterproof sealing ring is a waterproof rubber sealing ring.
This configuration further ensures the protection level of the explosion-proof case.
Preferably, two explosion-proof housings are fixed through fastening bolts after being spliced, a plurality of first assembling lugs and two second assembling lugs are arranged on two sides of each explosion-proof housing, bolt holes matched with the fastening bolts are formed in the first assembling lugs and the second assembling lugs, limiting convex points are arranged on the first assembling lugs on one side, limiting clamping grooves matched with the limiting convex points are formed in the first assembling lugs on the other side, and the two second assembling lugs on the same side are located at two ends of the explosion-proof housing respectively.
The structure facilitates the assembly between the two explosion-proof shells, further ensures the firmness and stability of the assembly between the two explosion-proof shells, and further improves the protection grade of the explosion-proof box.
The utility model discloses an explosion-proof housing adopts high strength combined material one-time die-casting shaping, has superstrong explosion-proof ability, when cable intermediate head takes place electrical explosion, can be with the high-pressure draught, flame and the piece restriction that produce in explosion-proof box, avoided the accident to enlarge, guarantee peripheral facility and personnel's safety adopt cable support frame supporting cable simultaneously, avoid because the cable rocks and causes the damage with explosion-proof housing frictional contact, extension cable life.
Drawings
Fig. 1 is a schematic cut-away view of the present invention;
FIG. 2 is an enlarged schematic view at I of FIG. 1;
in the figure, 1, an explosion-proof shell, 2, a semicircular cable support ring, 3, a support ring fixing rod, 4, a clamping convex strip, 5, a clamping groove, 6, a waterproof sealing ring, 7, a clamping tooth, 8, a first assembling lug, 9, a second assembling lug, 10, a bolt hole, 11, a limiting convex point and 12, a limiting groove are arranged.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 1 and 2, an explosion-proof box of cable intermediate head, including two explosion-proof casing 1 of mutually supporting and installing the cable support frame in explosion-proof casing 1, the cable support frame one-to-one in two explosion-proof casing 1, explosion-proof casing 1 is by the one-time die-casting shaping of high strength combined material, and sealed adoption unsmooth butt joint structure between two explosion-proof casing 1, imbed high temperature resistant sealing strip in unsmooth butt joint structure, form explosion-proof box after the concatenation of two explosion-proof casing 1, all be equipped with five rings of waterproof sealing ring 6 in explosion-proof box's cable exit. One side of explosion-proof housing 1 is equipped with chucking sand grip 4, and the opposite side of explosion-proof housing 1 is equipped with the chucking recess 5 of cooperation chucking sand grip 4, and when two explosion-proof housing 1 splice into whole explosion-proof box, the chucking sand grip of one of them explosion-proof housing inserts the high temperature resistant sealing strip in the chucking recess of another explosion-proof housing. Two cable support frames are arranged in each explosion-proof shell, each cable support frame comprises a semicircular cable support ring 2 and two support ring fixing rods 3, and the semicircular cable support rings of the corresponding cable support frames in the two explosion-proof shells 1 are combined together to form a complete circular cable support ring. The two ends of the explosion-proof shell 1 are provided with clamping teeth 7 matched with the waterproof sealing ring 6, and the inlet and the outlet of the cable spliced by the two explosion-proof shells form a clamping gear ring matched with the waterproof sealing ring. The high-temperature resistant sealing strip is a high-temperature resistant silica gel waterproof sealing strip, and the waterproof sealing ring 6 is a waterproof rubber sealing ring. Two explosion-proof housing splices the back and passes through fastening bolt fixed, every explosion-proof housing's both sides all are equipped with two first assembly lugs 8 and two second assembly lugs 9, all be equipped with the bolt hole 10 of cooperation fastening bolt on first assembly lug 8 and the second assembly lug 9, and wherein be equipped with spacing bump 11 on the first assembly lug of one side, be equipped with the spacing chucking recess 12 of the spacing bump 11 of cooperation on the first assembly lug of one side in addition, two second assembly lugs with one side are located explosion-proof housing 1's both ends respectively.
The utility model discloses an explosion-proof housing adopts the novel combined material one shot die-casting shaping of high strength, has superstrong explosion-proof ability. When the cable intermediate joint is subjected to electrical explosion, the generated high-pressure airflow, flame and fragments can be limited in the explosion-proof box, so that the expansion of accidents is avoided.
The utility model discloses a product possesses following advantage:
1. the corrosion-resistant coating has good corrosion resistance which reaches 10 grades, has special functions of preventing various corrosive media such as acid, alkali, salt, oil and the like, and can not be corroded;
2. is suitable for various severe weather, can still maintain good physical and mechanical properties in the environment of-50 ℃ to +80 ℃, and can be used for a long time;
3. has strong flame retardant property, and the performance index reaches A1 grade. The heat transfer coefficient is 0.23, and the heat insulation performance is excellent;
4. the protection rating is IP 67. The sealing between the two explosion-proof shells adopts a concave-convex butt joint structure, and a high-temperature-resistant silica gel waterproof sealing strip is embedded in the concave-convex butt joint structure. And waterproof rubber is adopted at the inlet and the outlet of the explosion-proof box, the number of turns of the waterproof rubber can be adjusted by adopting an inner ring stripping mode according to the diameter of an actual cable, and the waterproof rubber is tightly pressed and sealed by matching with the clamping teeth of the explosion-proof shell. The whole explosion-proof box can effectively cut off moisture and humidity at the two ends of the inlet and the outlet of the cable, so that the cable can run safely;
5. the product has good ageing resistance, long service life of 30 years and no maintenance;
6. stable in structure, the inside electrified cable erection bracing frame of explosion-proof box guarantees that inside cable is located the central point of explosion-proof box and puts, avoids because the cable rocks and causes the damage with explosion-proof box casing friction contact.
The utility model discloses an explosion-proof housing adopts high strength combined material one-time die-casting shaping, superstrong explosion-proof ability has, be suitable for the intermediate head protection in the cable channel below the 35kV voltage level or the direct-burried environment, when the cable intermediate head takes place electrical explosion, can be with the high-pressure draught who produces, flame and piece restriction in explosion-proof box, avoided the accident to enlarge, guarantee peripheral facility and personnel safety adopt cable support frame supporting cable simultaneously, avoid causing the damage because the cable rocks and explosion-proof housing frictional contact, extension cable life.
Claims (6)
1. The utility model provides an explosion-proof box of cable intermediate head which characterized in that: the anti-explosion shell is formed by one-time die-casting of a high-strength composite material, a concave-convex butt joint structure is adopted for sealing between the two anti-explosion shells, a high-temperature-resistant sealing strip is embedded into the concave-convex butt joint structure, and at least one circle of waterproof sealing ring is arranged at an inlet and an outlet of a cable spliced by the two anti-explosion shells.
2. The explosion-proof box of cable intermediate head of claim 1, characterized in that: one side of the explosion-proof shell is provided with a clamping convex strip, the other side of the explosion-proof shell is provided with a clamping groove matched with the clamping convex strip, and when the two explosion-proof shells are spliced into the whole explosion-proof box, the clamping convex strip of one explosion-proof shell is inserted into the clamping groove of the other explosion-proof shell to press a high-temperature-resistant sealing strip in the clamping groove.
3. The explosion-proof box of cable intermediate head of claim 1, characterized in that: two cable support frames are arranged in each explosion-proof shell, each cable support frame comprises a semicircular cable support ring and two support ring fixing rods, and the semicircular cable support rings of the cable support frames which correspond to each other in the two explosion-proof shells are combined together to form a complete circular cable support ring.
4. The explosion-proof box of cable intermediate head of claim 1, characterized in that: the two ends of the explosion-proof shell are provided with clamping teeth matched with the waterproof sealing ring, and the inlet and the outlet of the cable spliced by the two explosion-proof shells form a clamping gear ring matched with the waterproof sealing ring.
5. The explosion-proof box of cable intermediate head of claim 1, characterized in that: the high-temperature-resistant sealing strip is a high-temperature-resistant silica gel waterproof sealing strip, and the waterproof sealing ring is a waterproof rubber sealing ring.
6. The explosion-proof box of cable intermediate head of claim 1, characterized in that: the two explosion-proof shells are fixed through fastening bolts after being spliced, a plurality of first assembling lugs and two second assembling lugs are arranged on two sides of each explosion-proof shell, bolt holes matched with the fastening bolts are formed in the first assembling lugs and the second assembling lugs, a limiting convex point is arranged on the first assembling lug on one side, a limiting clamping groove matched with the limiting convex point is formed in the first assembling lug on the other side, and the two second assembling lugs on the same side are respectively located at two ends of the explosion-proof shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020979431.8U CN212462752U (en) | 2020-06-02 | 2020-06-02 | Explosion-proof box of cable intermediate head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020979431.8U CN212462752U (en) | 2020-06-02 | 2020-06-02 | Explosion-proof box of cable intermediate head |
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| CN212462752U true CN212462752U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020979431.8U Active CN212462752U (en) | 2020-06-02 | 2020-06-02 | Explosion-proof box of cable intermediate head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433639A (en) * | 2021-07-06 | 2021-09-24 | 四川天邑康和通信股份有限公司 | Optical cable joint box flexible in connection |
-
2020
- 2020-06-02 CN CN202020979431.8U patent/CN212462752U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433639A (en) * | 2021-07-06 | 2021-09-24 | 四川天邑康和通信股份有限公司 | Optical cable joint box flexible in connection |
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