CN203289061U - Flame-retardation explosion-proof box for intermediate joint of cable - Google Patents
Flame-retardation explosion-proof box for intermediate joint of cable Download PDFInfo
- Publication number
- CN203289061U CN203289061U CN2013203409177U CN201320340917U CN203289061U CN 203289061 U CN203289061 U CN 203289061U CN 2013203409177 U CN2013203409177 U CN 2013203409177U CN 201320340917 U CN201320340917 U CN 201320340917U CN 203289061 U CN203289061 U CN 203289061U
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- cylindrical shell
- flange
- annular
- cable
- explosion
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Abstract
The utility model relates to a flame-retardation explosion-proof box for an intermediate joint of a cable. The flame-retardation explosion-proof box comprises a first cylindrical shell and a second cylindrical shell. One end of the first cylindrical shell has a first tightening port, and the edge of the other end of the first cylindrical shell has a first circular flange. The first tightening port has a first through hole through which the cable can pass. An end surface of the first circular flange has a circular groove. One end of the second cylindrical shell has a second tightening port, and the edge of the other end of the second cylindrical shell has a second circular flange. The second tightening port has a second through hole through which the cable can pass. A circular convex rib which stretches axially is arranged on the second circular flange at a position corresponding to the circular groove. The first circular flange and the second circular flange are abutted and locked through bolts, and thus plug connection between the circular convex rib and the circular groove is achieved. The structure of the flame-retardation explosion-proof box is enabled to be compact and reliable by connecting the circular groove and the circular convex rib in a plugging manner.
Description
Technical field
The utility model relates to a kind of explosion-protection equipment of high-voltage cable middle joint, is specifically related to a kind of cable intermediate joint flame-proof explosion-proof box.
Background technology
those skilled in the art should know, anti-explosion box for cable middle connector of the prior art generally comprises two semicylinder shells that connect, and then form the flame proof inner chamber between two semicylinder shells, yet, the anti-explosion box for cable middle connector of this kind structure is because the flange that connects is longer, and then cause the flame proof gap of interface also longer, be used in the bolt use amount of interface position locking armored cassette relatively many, and it is feasible that the distribution of bolt has no rule, production cost is higher, in addition, the bolt that is used for fastening installation easily comes loose, and then cause armored cassette can't play the effect of sealing flame proof, thereby there is certain potential safety hazard.
Summary of the invention
The purpose of this utility model is to overcome the defect of prior art, and a kind of simple in structure, safe and reliable cable intermediate joint flame-proof explosion-proof box is provided.
for achieving the above object, the utility model adopts a kind of cable intermediate joint flame-proof explosion-proof box, comprise the first cylindrical shell and the second cylindrical shell, a wherein end of described the first cylindrical shell has first and tightens mouth, the end edge of the other end is along having the first annular flange flange that extends radially outwardly, described first tightens mouth has the first through hole that passes through for cable penetration, the annular groove that has the formation of extending axially on the end face of described the first annular flange flange, a wherein end of described the second cylindrical shell has second and tightens mouth, the end edge of the other end is along having the second annular flange flange that extends radially outwardly, described second tightens mouth has the second through hole that passes through for cable penetration, on described the second annular flange flange, the position corresponding with described annular groove has the annular convex rib that extends axially and adapt with described annular groove, described the first annular flange flange is docked with described the second annular flange flange and is arranged and by bolt, tightly lock, and then make described annular convex rib and described annular groove form grafting.
Concrete, be provided with sealing ring between described annular convex rib and described annular groove.
Concrete, on the inwall of described the first cylindrical shell and the second cylindrical shell respectively the close neighbour be provided with fireprotection layer, described first tightens mouthful first through hole and second at place tightens on mouthful second through-hole wall at place close neighbour respectively and is provided with axial waterstop.
the utility model is by the above-mentioned improvement to prior art, reached the beneficial effect of following three aspects:: 1, the structure that forms armored cassette by the axial docking by the first cylindrical shell and the second cylindrical shell has substituted and has generally adopted two semicylinder shell radial abutment to form the structure of armored cassette in the prior art, obviously, in the utility model, the connect annular explosion suppresion surface that forms of the first annular flange flange and the second annular flange flange is little much with explosion suppresion surface area of the prior art, and the upper circumferential reasonable layout of bolt on the annular explosion suppresion surface of cooperation, use more safe and reliable, 2, after the grafting by annular convex rib and annular groove arranges, and coordinate the setting of upper sealing ring, obviously make armored cassette overall structure of the present utility model compacter reliable, further reached safe and reliable effect, 3, owing at first first through hole and second that tightens the mouth place, tightening on mouthful second through-hole wall at place and being provided with axial waterstop, prevented that further outside moisture content from entering the armored cassette inner chamber by cable with tightening mouthful gap at place, reached fabulous block-water effect.
Description of drawings
Fig. 1 is the schematic diagram of the utility model embodiment.
Fig. 2 is the schematic diagram of the second cylindrical shell in Fig. 1.
Fig. 3 is the schematic diagram of the second cylindrical shell in Fig. 1.
Embodiment
as Fig. 1, Fig. 2 and shown in Figure 3, specific embodiment of the utility model is a kind of cable intermediate joint flame-proof explosion-proof box, comprise the first cylindrical shell 1 and the second cylindrical shell 2, a wherein end of described the first cylindrical shell 1 has first and tightens mouth 10, the end edge of the other end is along having the first annular flange flange 11 that extends radially outwardly, described first tightens mouth 10 has the first through hole 100 that passes through for cable penetration, the annular groove 110 that has the formation of extending axially on the end face of described the first annular flange flange 11, a wherein end of described the second cylindrical shell 2 has second and tightens mouth 20, the end edge of the other end is along having the second annular flange flange 21 that extends radially outwardly, described second tightens mouth 20 has the second through hole 200 that passes through for cable penetration, on described the second annular flange flange 21, the position corresponding with described annular groove 110 has the annular convex rib 210 that extends axially and adapt with described annular groove 110, described the first annular flange flange 11 is docked with described the second annular flange flange 21 and is arranged and by bolt 3, tightly lock, and then make described annular convex rib 210 form and peg graft with described annular groove 110.
From Fig. 1 obviously as can be known, in the present embodiment, be provided with sealing ring 4 between described annular convex rib 210 and described annular groove 110, on the inwall of described the first cylindrical shell 1 and the second cylindrical shell 2 respectively the close neighbour be provided with fireprotection layer 5, the described first the first through hole 100 and second that tightens mouthful 10 places tightens on second through hole 200 inwalls at mouthful 20 places close neighbour respectively and is provided with axial waterstop 6.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.Claim and equivalent thereof that the claimed scope of the utility model is appended define.
Claims (3)
1. cable intermediate joint flame-proof explosion-proof box, it is characterized in that: comprise the first cylindrical shell and the second cylindrical shell, a wherein end of described the first cylindrical shell has first and tightens mouth, the end edge of the other end is along having the first annular flange flange that extends radially outwardly, described first tightens mouth has the first through hole that passes through for cable penetration, the annular groove that has the formation of extending axially on the end face of described the first annular flange flange, a wherein end of described the second cylindrical shell has second and tightens mouth, the end edge of the other end is along having the second annular flange flange that extends radially outwardly, described second tightens mouth has the second through hole that passes through for cable penetration, on described the second annular flange flange, the position corresponding with described annular groove has the annular convex rib that extends axially and adapt with described annular groove, described the first annular flange flange is docked with described the second annular flange flange and is arranged and by bolt, tightly lock, and then make described annular convex rib and described annular groove form grafting.
2. a kind of cable intermediate joint flame-proof explosion-proof box according to claim 1, is characterized in that: be provided with sealing ring between described annular convex rib and described annular groove.
3. a kind of cable intermediate joint flame-proof explosion-proof box according to claim 1 and 2, it is characterized in that: on the inwall of described the first cylindrical shell and the second cylindrical shell respectively the close neighbour be provided with fireprotection layer, described first first through hole and second that tightens mouthful place tightens on mouthful second through-hole wall at place close neighbour respectively and is provided with axial waterstop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203409177U CN203289061U (en) | 2013-05-28 | 2013-05-28 | Flame-retardation explosion-proof box for intermediate joint of cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203409177U CN203289061U (en) | 2013-05-28 | 2013-05-28 | Flame-retardation explosion-proof box for intermediate joint of cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203289061U true CN203289061U (en) | 2013-11-13 |
Family
ID=49545405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203409177U Expired - Fee Related CN203289061U (en) | 2013-05-28 | 2013-05-28 | Flame-retardation explosion-proof box for intermediate joint of cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203289061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569322A (en) * | 2020-05-09 | 2020-08-25 | 徐占松 | Short-circuit-proof quick fire extinguishing device for high-altitude low-voltage transmission cable |
-
2013
- 2013-05-28 CN CN2013203409177U patent/CN203289061U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569322A (en) * | 2020-05-09 | 2020-08-25 | 徐占松 | Short-circuit-proof quick fire extinguishing device for high-altitude low-voltage transmission cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20140528 |