CN203536920U - Explosion-proof cable entry device - Google Patents
Explosion-proof cable entry device Download PDFInfo
- Publication number
- CN203536920U CN203536920U CN201320672376.8U CN201320672376U CN203536920U CN 203536920 U CN203536920 U CN 203536920U CN 201320672376 U CN201320672376 U CN 201320672376U CN 203536920 U CN203536920 U CN 203536920U
- Authority
- CN
- China
- Prior art keywords
- thread structure
- introducing device
- cable
- device body
- cable entry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an explosion-proof cable entry device. The device comprises a hold-down nut that is provided with a first end in connection with a wiring steel pipe and a second end in connection with a cable entry device body. The inner chamber of the first end is provided with an inner thread structure. The outer wall of the second end is provided with an outer thread structure. The cable entry device body is provided with an installation chamber for storing a rubber sealing ring and a screwing segment in connection with a targeted housing. The installation chamber is provided with an inner thread structure in fit with the second end of the hold-down nut. The inner chamber of the screwing segment is communicated with the installation chamber to allow a cable to pass through. The end part of the outer thread structure of the screwing segment is provided with an O-shaped ring installation groove disposed on the cable entry device body. The service lifetime of the device is improved, particularly with a repeated installation frequency of original three to five times to over 100 times. The suitable cable diameter range is enlarged by 20%. The device can directly be connected with the wiring steel pipe with more convenient usage, and fixing devices and extra connecting devices are saved.
Description
Technical field
The utility model relates to a kind of anti-explosion cable introducing device using in explosion risk environment.
Background technology
At present, known anti-explosion cable introducing device structure is that introducing device health, clamp nut, rubber seal, O type circle and locking nut form.First by introducing device health precession target shell, screw thread is screwed in completely and compress O type circle or use clamp nut oppositely to screw compression O type circle, then cable is passed to clamp nut, rubber seal, and screw clamp nut compressing rubber sealing ring, reach the object that rubber seal is held cable tightly.But the O type circle of this cable entry is arranged in escape, while screwing, easily damages O type circle and then destroy hermetically-sealed construction; Sealing ring is the straight wall construction of cylinder, and decrement is little, and applicable cable wire range is narrower; Clamp nut is used chamfering protection cable, but cannot integrally combine with cabling steel pipe, in actual use very inconvenience.
Utility model content
The purpose of this utility model is exactly for the problems referred to above, and a kind of anti-explosion cable introducing device is provided.
To achieve these goals, the utility model adopts following technical scheme:
Anti-explosion cable introducing device, is characterized in that, comprising:
Clamp nut, it has the first end being connected with cabling steel pipe and the second end being connected with introducing device body, and the inner chamber body of described first end has female thread structure, and the outer wall of described the second end is provided with external thread structure;
Introducing device body, it has installation cavity and a screw-in section being connected with target shell of holding rubber seal, this installation cavity is provided with the female thread structure coordinating with clamp nut the second end, the inner chamber of this screw-in section communicates and passes through with current supply cable with installation cavity, and the described external thread structure end that screws in section is provided with the mounting groove of the O shape circle being positioned on introducing device body.
As further improvement of the utility model is, described rubber seal be one by one end the extension component towards the other end, and its internal diameter is contraction-like gradually by one end towards the other end.
Compared with prior art, the utlity model has following beneficial effect:
(2) improved the useful life of cable entry, number of times has particularly been installed repeatedly and by original 3～5 times, has been brought up to more than 100 times.
(2) applicable cable wire range has expanded 20%.
(3) clamp nut can directly be connected with cabling steel pipe, uses conveniently, has saved fixture and extra jockey.
(4) cancel the straight wall construction of cylinder of rubber seal, adopt outer straight wall internal taper structure, because front and back wall thickness is different, so integral, flexible is better, applicable cable wire range is wider.
(5) cancel relief groove structure, O type ring recess is opened in screw thread periphery, O type circle is not directly contacted with screw thread, during compression, be only subject to the pressure of the vertical direction of cable entry health, without the twisting resistance from screw thread, not fragile.
Accompanying drawing explanation
Fig. 1 is anti-explosion cable introducing device structural representation.
Description of reference numerals:
1. clamp nut; 2. introducing device body; 3. rubber seal; 4, O type circle; 5. locking nut.
Embodiment
Below in conjunction with embodiment, elaborate the utility model.
In literary composition, the orientation such as upper and lower, left and right is mutually corresponding with the upper and lower, left and right of map sheet.
Referring to Fig. 1, anti-explosion cable introducing device, it comprises: clamp nut 1, introducing device body 2, rubber seal 3 and O type circle 4, locking nut 5, this locking nut 5 is installed on the screw-in section of introducing device body.
The clamp nut 1 of this anti-explosion cable introducing device, it has the first end a being connected with cabling steel pipe and the second end b being connected with introducing device body, the inner chamber body of described first end a has female thread structure, thereby cabling steel pipe forms overall structure to be connected, the outer wall of described the second end b is provided with external thread structure, the intracavity diameter of the first end of this clamp nut is greater than the intracavity diameter of the second end, and whole clamp nut is a convex shape structure.
The introducing device body 2 of this anti-explosion cable introducing device is positioned at the lower position of Fig. 1, it has installation cavity and a screw-in section being connected with target shell of holding rubber seal 3, this installation cavity is provided with the female thread structure coordinating with clamp nut the second end, the inner chamber of this screw-in section communicates and passes through with current supply cable with installation cavity, the described external thread structure end that screws in section is provided with the mounting groove of the O shape circle 4 being positioned on introducing device body, because the top of introducing device body is different with the external diameter of bottom, at the two crossover position, form annular table scalariform structure, the top that screws in section joins with annular table scalariform structure, and O shape circle mounting groove is just in time positioned at annular table scalariform structure place and the close section that screws in is laid.
As can be seen from Figure 1, described rubber seal be one by one end the extension component towards the other end, and its internal diameter is contraction-like gradually by one end towards the other end.
Assembling process of the present utility model is as follows:
First by the screw-in section precession target shell of introducing device body, make the helicitic texture that screws in section screw in target shell completely and compress O type circle or use clamp nut oppositely to screw compression O type circle, then cable is passed to clamp nut, rubber seal, and screw clamp nut compressing rubber sealing ring, reach the object that rubber seal is held cable tightly.
Rubber seal has adopted the ring structure of improved outer straight wall internal taper, sealing effectiveness is better, be more applicable in explosion risk environment and use, clamp nut increases internal thread syndeton, the wire conduit of walking that can be conventional with dangerous place with a potential explosion is directly connected, and has increased the convenience using.
Claims (2)
1. anti-explosion cable introducing device, is characterized in that, comprising:
Clamp nut, it has the first end being connected with cabling steel pipe and the second end being connected with introducing device body, and the inner chamber body of described first end has female thread structure, and the outer wall of described the second end is provided with external thread structure;
Introducing device body, it has installation cavity and a screw-in section being connected with target shell of holding rubber seal, this installation cavity is provided with the female thread structure coordinating with clamp nut the second end, the inner chamber of this screw-in section communicates and passes through with current supply cable with installation cavity, and the described external thread structure end that screws in section is provided with the mounting groove of the O shape circle being positioned on introducing device body.
2. anti-explosion cable introducing device according to claim 1, is characterized in that, described rubber seal be one by one end the extension component towards the other end, and its internal diameter is contraction-like gradually by one end towards the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320672376.8U CN203536920U (en) | 2013-10-29 | 2013-10-29 | Explosion-proof cable entry device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320672376.8U CN203536920U (en) | 2013-10-29 | 2013-10-29 | Explosion-proof cable entry device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536920U true CN203536920U (en) | 2014-04-09 |
Family
ID=50423096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320672376.8U Expired - Fee Related CN203536920U (en) | 2013-10-29 | 2013-10-29 | Explosion-proof cable entry device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113991590A (en) * | 2021-11-17 | 2022-01-28 | 嘉利特荏原泵业有限公司 | Oil leakage prevention cable sealing joint |
-
2013
- 2013-10-29 CN CN201320672376.8U patent/CN203536920U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113991590A (en) * | 2021-11-17 | 2022-01-28 | 嘉利特荏原泵业有限公司 | Oil leakage prevention cable sealing joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20191029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |