CN202602203U - Thread type anti-explosion junction box - Google Patents
Thread type anti-explosion junction box Download PDFInfo
- Publication number
- CN202602203U CN202602203U CN 201220292497 CN201220292497U CN202602203U CN 202602203 U CN202602203 U CN 202602203U CN 201220292497 CN201220292497 CN 201220292497 CN 201220292497 U CN201220292497 U CN 201220292497U CN 202602203 U CN202602203 U CN 202602203U
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- Prior art keywords
- top cover
- main body
- shaped main
- cylinder
- opening
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- Expired - Fee Related
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Abstract
The utility model relates to a thread type anti-explosion junction box which comprises a cylinder-shaped main body and a top cover, wherein an opening is arranged on the top end of the cylinder-shaped main body, and the top cover is connected to the opening in a tight-screwing mode through threads. A supporting arm is arranged at the edge of the opening of the cylinder-shaped main body, and the edge extends outwards in a radial direction. A ring slot is arranged on the supporting arm. An elastic sealing ring is arranged on the bottom of the ring slot. A pressing wall which is matched with the ring slot is arranged on a position of the top cover, and the position of the top cover corresponds with the ring slot. The ring slot, the elastic sealing ring and the pressing wall of the top cover are arranged in the anti-explosion junction box, and accordingly when the top cover is screwed tightly into the cylinder-shaped main body, the pressing wall also presses the elastic sealing ring which is then expanded to chock up the gap which possibly exists at the position where the top cover and the cylinder-shaped main body are connected, sealing performance is notably improved, so that safety of the anti-explosion junction box is further improved, and life and property safety of workers on a construction site under the conditions of explosive gas atmosphere or combustible dust atmosphere is effectively guaranteed.
Description
Technical field
The utility model relates to a kind of protector of electric wire, relates in particular to a kind of screw-type anti-explosion terminal box.
Background technology
As everyone knows, anti-explosion terminal box is widely used in special occasions such as explosive gas atmosphere or combustible dust environment, therefore; Sealing to anti-explosion terminal box has proposed a very high request; And being sealed and matched through the realization sealing effectiveness that adapts of seal bead and sealed groove of the housing of the anti-explosion terminal box that uses on the existing market and loam cake, in actual use, often because the deviation of the loosening or machining accuracy of bolt; Make and always exist small gap between the mating surface of housing and loam cake; In the long-term process of using, particularly in the environment of relatively concussion, exist certain potential safety hazard.
Summary of the invention
The purpose of the utility model is to overcome the defective of prior art, and a kind of simple in structure, anti-explosion terminal box that fail safe is good is provided.
For realizing above-mentioned purpose; The utility model adopts a kind of screw-type anti-explosion terminal box; Comprise that the top has the cylindrical-shaped main body of opening and screw through screw thread being connected the top cover of this opening, the edge of opening of said cylindrical-shaped main body extends radially outwardly and is provided with support arm, and said support arm is provided with annular groove; Said annular groove bottom is provided with elastic seal ring, is provided with the wall of exerting pressure that is fitted to annular groove with the corresponding position of said annular groove on the said top cover.
Concrete, said support arm bottom is fixedly connected with reinforcement, and the other end of this reinforcement is fixedly connected on the perisporium of cylindrical-shaped main body.
Technique scheme through to prior art is improved; Because at the wall of exerting pressure that is provided with on the anti-explosion terminal box on annular groove, elastic seal ring and the top cover, structure is simple relatively, and when top cover is screwed into cylindrical-shaped main body; The wall of exerting pressure is also exerted pressure to elastic seal ring; Thereby make elastic seal ring expand, the gap that possibly exist between the junction (being the position of annular groove bottom) with top cover and cylindrical-shaped main body fills up, and sealing property is significantly improved; And then also further raising of the fail safe of anti-explosion terminal box, effectively ensured life and property safety the job site of explosive gas atmosphere or combustible dust staff.
Description of drawings
Fig. 1 is that the utility model embodiment master looks cutaway view.
Fig. 2 is the sketch map of cylindrical-shaped main body among Fig. 1.
Embodiment
Shown in Fig. 1-2; The specific embodiment of the utility model is a kind of screw-type anti-explosion terminal box; Comprise that the top has the cylindrical-shaped main body 1 of opening 10 and the top cover 2 of screwing and being connected this opening 10 through screw thread; Opening 10 edges of said cylindrical-shaped main body 1 extend radially outwardly and are provided with support arm 11; Said support arm 11 is provided with annular groove 110, and said annular groove 110 bottoms are provided with elastic seal ring 3, is provided with the wall 20 of exerting pressure that is fitted to annular groove 110 with said annular groove 110 corresponding positions on the said top cover 2.
Can know obviously also among Fig. 1, Fig. 2 that in the present embodiment, said support arm 11 bottoms are fixedly connected with reinforcement 4, the other end of this reinforcement 4 is fixedly connected on 1 perisporium 12 of cylindrical-shaped main body.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; 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 variations and improvement all fall in the utility model scope that requires protection.The protection range that the utility model requires defines according to appended claim and equivalent thereof.
Claims (2)
1. screw-type anti-explosion terminal box; It is characterized in that: comprise that the top has the cylindrical-shaped main body of opening and screw being connected the top cover of this opening through screw thread; The edge of opening of said cylindrical-shaped main body extends radially outwardly and is provided with support arm; Said support arm is provided with annular groove, and said annular groove bottom is provided with elastic seal ring, is provided with the wall of exerting pressure that is fitted to annular groove with the corresponding position of said annular groove on the said top cover.
2. a kind of screw-type anti-explosion terminal box according to claim 1 is characterized in that: said support arm bottom is fixedly connected with reinforcement, and the other end of this reinforcement is fixedly connected on the perisporium of cylindrical-shaped main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220292497 CN202602203U (en) | 2012-06-13 | 2012-06-13 | Thread type anti-explosion junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220292497 CN202602203U (en) | 2012-06-13 | 2012-06-13 | Thread type anti-explosion junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202602203U true CN202602203U (en) | 2012-12-12 |
Family
ID=47319720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220292497 Expired - Fee Related CN202602203U (en) | 2012-06-13 | 2012-06-13 | Thread type anti-explosion junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202602203U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234041A (en) * | 2013-04-27 | 2013-08-07 | 周挺娜 | Novel connection piece for numerical control machine tool and with sealing gasket |
| CN105673652A (en) * | 2013-04-27 | 2016-06-15 | 周挺娜 | Connecting piece used for numerical control machine tool and provided with sealing gasket |
| CN105715792A (en) * | 2013-04-27 | 2016-06-29 | 周挺娜 | Novel connecting piece with sealing gasket for numerical control machine tool |
-
2012
- 2012-06-13 CN CN 201220292497 patent/CN202602203U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234041A (en) * | 2013-04-27 | 2013-08-07 | 周挺娜 | Novel connection piece for numerical control machine tool and with sealing gasket |
| CN105673652A (en) * | 2013-04-27 | 2016-06-15 | 周挺娜 | Connecting piece used for numerical control machine tool and provided with sealing gasket |
| CN105715792A (en) * | 2013-04-27 | 2016-06-29 | 周挺娜 | Novel connecting piece with sealing gasket for numerical control machine tool |
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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: 20121212 Termination date: 20130613 |