CN204436435U - A kind of gas in mine counterflow-preventing drum device - Google Patents
A kind of gas in mine counterflow-preventing drum device Download PDFInfo
- Publication number
- CN204436435U CN204436435U CN201420683660.XU CN201420683660U CN204436435U CN 204436435 U CN204436435 U CN 204436435U CN 201420683660 U CN201420683660 U CN 201420683660U CN 204436435 U CN204436435 U CN 204436435U
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- China
- Prior art keywords
- gear aerofoil
- air duct
- magnet
- gas
- mine
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Abstract
The utility model provides a kind of gas in mine counterflow-preventing drum device, comprise air duct and pass vertically through the rotating shaft of air duct along air duct cross section diameter direction, described rotating shaft is rotatably connected to first gear aerofoil and second gear aerofoil, described first gear aerofoil and second gear aerofoil are semicircle, its edge is provided with weather strip, the inwall of described air duct is along the circumferential direction provided with the circular back-up ring for stopping first gear aerofoil and second gear aerofoil during gas reflux, the inside wall of described back-up ring is provided with sealing ring, described first gear aerofoil is provided with the first magnet, described second gear aerofoil is provided with second magnet corresponding with described first magnet positions, the magnetic of described first magnet and described second magnet is repelled each other.The utility model structure is simple, easy to use, can realize in-site installation and use, be easy to air duct and cross wind, effectively prevent air duct reverse, guarantee ventilation system stable operation, be with a wide range of applications.
Description
Technical field
The utility model relates to a kind of anti-backflow device, is specifically related to a kind of gas in mine counterflow-preventing drum device.
Background technology
General coal mine all belongs to highly gassy mine, the Driving Face in Coal Tunnel construction stage, and face gas concentration is very large, when the unexpected power-off of blower fan, in air duct, air quantity reduces, and gas density increases, the toxic and harmfuls such as high concentration gas adverse current in air duct, is discharged in tunnel and causes potential safety hazard.During ensureing coal roadway tunneling, prevent local distinguished and admirable reverse, cause tunnel gas enter fresh distinguished and admirable in, under guarantee Local Ventilation Equipment in Coal Mine secured premise, the air duct designing a kind of gas prevention adverse current is significant, the life security of constructor under guarantee coal mining enterprise mine.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, a kind of gas in mine counterflow-preventing drum device is provided, this counterflow-preventing drum device structure is simple, easy to use, can realize in-site installation and use, less demanding to the professional standards of installer, be easy to air duct and cross wind, effectively prevent air duct reverse, guarantee ventilation system stable operation, the cost that enterprise drops into is few, is with a wide range of applications.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of gas in mine counterflow-preventing drum device, comprise air duct and pass vertically through the rotating shaft of air duct along air duct cross section diameter direction, it is characterized in that, described rotating shaft is rotatably connected to first gear aerofoil and second gear aerofoil, described first gear aerofoil and second gear aerofoil are semicircle, its edge is provided with weather strip, the inwall of described air duct is along the circumferential direction provided with the circular back-up ring for stopping first gear aerofoil and second gear aerofoil during gas reflux, the inside wall of described back-up ring is provided with sealing ring, described first gear aerofoil is provided with the first magnet, described second gear aerofoil is provided with second magnet corresponding with described first magnet positions, the magnetic of described first magnet and described second magnet is repelled each other.
Above-mentioned a kind of gas in mine counterflow-preventing drum device, is characterized in that, described first gear aerofoil
The internal diameter of back-up ring is greater than with the radius of second gear aerofoil.
Above-mentioned a kind of gas in mine counterflow-preventing drum device, is characterized in that, the quantity of described first magnet and the second magnet is 2.
Above-mentioned a kind of gas in mine counterflow-preventing drum device, is characterized in that, the top of described rotating shaft is provided with external screw thread and is threaded for rotating shaft being fixed on the hold-down nut on air duct.
The utility model compared with prior art has the following advantages:
1, the utility model structure is simple, easy to use, can realize in-site installation and use, simplify transport, avoid wasting man power and material, saved the cost of enterprise.
2, the professional standards of the utility model to installer are less demanding, and practical effect is simple, understandable.
3, the utility model is easy to air duct and crosses air door, effectively prevents air duct reverse, guarantees ventilation system stable operation, and the cost that enterprise drops into is few, and anti-contrary wind effect is good, is with a wide range of applications.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Structural representation when Fig. 1 is the normal ventilation in the utility model embodiment.
Structural representation when Fig. 2 is the counterflow-preventing in the utility model embodiment.
Description of reference numerals:
1-air duct; 2-rotating shaft; 3-first gear aerofoil;
4-second gear aerofoil; 5-back-up ring; 6-sealing ring;
7-weather strip.
Detailed description of the invention
As depicted in figs. 1 and 2, the utility model comprises air duct 1 and passes vertically through the rotating shaft 2 of air duct 1 along air duct 1 cross section diameter direction, it is characterized in that, described rotating shaft 2 is rotatably connected to first gear aerofoil 3 and second gear aerofoil 4, described first gear aerofoil 3 and second gear aerofoil 4 are semicircle, its edge is provided with weather strip 7, the inwall of described air duct 1 is along the circumferential direction provided with the circular back-up ring 5 for stopping first gear aerofoil 3 and second gear aerofoil 4 during gas reflux, the inside wall of described back-up ring 5 is provided with sealing ring 6, described first gear aerofoil 3 is provided with the first magnet, described second gear aerofoil 4 is provided with second magnet corresponding with described first magnet positions, the magnetic of described first magnet and described second magnet is repelled each other.
In the present embodiment, the radius of described first gear aerofoil 3 and second gear aerofoil 4 is greater than the internal diameter of back-up ring 5.
In the present embodiment, the quantity of described first magnet and the second magnet is 2.
In the present embodiment, the top of described rotating shaft 2 is provided with external screw thread and is threaded for rotating shaft 2 being fixed on the hold-down nut on air duct 1.
The course of work of the present utility model: when air duct 1 normally ventilates, first gear aerofoil 3 and second gear aerofoil 42 rotate that to open up into first gear aerofoil 3 and second gear aerofoil 4 basic vertical with the vertical section of air duct 1 around the shaft under the action of the forces of the wind, in air duct 1 distinguished and admirable maintenance normal through, and substantially without impact; When causing wind direction adverse current due to other reasonses such as power-off, be arranged on the first magnet on first gear aerofoil 3 and second gear aerofoil 4 and the second magnet due to the magnetic effect of repelling each other, first gear aerofoil 3 and second gear aerofoil 42 are opened rapidly around the shaft, form the plectane being greater than back-up ring 5 internal diameter, under the effect of sealing ring 6 and weather strip 7, block reverse distinguished and admirable.
The above is only preferred embodiment of the present utility model, not imposes any restrictions the utility model.Every above embodiment is done according to utility model technical spirit any simple modification, change and equivalence change, all still belong in the protection domain of technical solutions of the utility model.
Claims (4)
1. a gas in mine counterflow-preventing drum device, comprise air duct (1) and pass vertically through the rotating shaft (2) of air duct (1) along air duct (1) cross section diameter direction, it is characterized in that, described rotating shaft (2) is rotatably connected to first gear aerofoil (3) and second gear aerofoil (4), described first gear aerofoil (3) and second gear aerofoil (4) are semicircle, its edge is provided with weather strip (7), the inwall of described air duct (1) is along the circumferential direction provided with the circular back-up ring (5) for stopping first gear aerofoil (3) and second gear aerofoil (4) during gas reflux, the inside wall of described back-up ring (5) is provided with sealing ring (6), described first gear aerofoil (3) is provided with the first magnet, described second gear aerofoil (4) is provided with second magnet corresponding with described first magnet positions, the magnetic of described first magnet and described second magnet is repelled each other.
2. a kind of gas in mine counterflow-preventing drum device according to claim 1, is characterized in that, the radius of described first gear aerofoil (3) and second gear aerofoil (4) is greater than the internal diameter of back-up ring (5).
3. a kind of gas in mine counterflow-preventing drum device according to claim 1, is characterized in that, the quantity of described first magnet and the second magnet is 2.
4. a kind of gas in mine counterflow-preventing drum device according to claim 1, it is characterized in that, the top of described rotating shaft (2) is provided with external screw thread and is threaded for rotating shaft (2) being fixed on the hold-down nut on air duct (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683660.XU CN204436435U (en) | 2014-11-14 | 2014-11-14 | A kind of gas in mine counterflow-preventing drum device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683660.XU CN204436435U (en) | 2014-11-14 | 2014-11-14 | A kind of gas in mine counterflow-preventing drum device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436435U true CN204436435U (en) | 2015-07-01 |
Family
ID=53604313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420683660.XU Expired - Fee Related CN204436435U (en) | 2014-11-14 | 2014-11-14 | A kind of gas in mine counterflow-preventing drum device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204436435U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437814A (en) * | 2016-10-21 | 2017-02-22 | 湖南省有色金属中等专业学校 | Pulsation air flow generator |
| CN111734471A (en) * | 2020-07-03 | 2020-10-02 | 贵州大学 | Novel air duct countercurrent-preventing device |
| CN113006852A (en) * | 2021-04-16 | 2021-06-22 | 云南滇东雨汪能源有限公司 | Automatic negative pressure air ducting of tunnelling working face |
-
2014
- 2014-11-14 CN CN201420683660.XU patent/CN204436435U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437814A (en) * | 2016-10-21 | 2017-02-22 | 湖南省有色金属中等专业学校 | Pulsation air flow generator |
| CN106437814B (en) * | 2016-10-21 | 2019-02-15 | 湖南省有色金属中等专业学校 | A kind of fluctuating wind flow generating apparatus |
| CN111734471A (en) * | 2020-07-03 | 2020-10-02 | 贵州大学 | Novel air duct countercurrent-preventing device |
| CN113006852A (en) * | 2021-04-16 | 2021-06-22 | 云南滇东雨汪能源有限公司 | Automatic negative pressure air ducting of tunnelling working face |
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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: 20150701 Termination date: 20151114 |
|
| EXPY | Termination of patent right or utility model |