CN2795445Y - Single sash two-way pressure bearing regulating main air door of coal mine - Google Patents
Single sash two-way pressure bearing regulating main air door of coal mine Download PDFInfo
- Publication number
- CN2795445Y CN2795445Y CN 200520109685 CN200520109685U CN2795445Y CN 2795445 Y CN2795445 Y CN 2795445Y CN 200520109685 CN200520109685 CN 200520109685 CN 200520109685 U CN200520109685 U CN 200520109685U CN 2795445 Y CN2795445 Y CN 2795445Y
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- CN
- China
- Prior art keywords
- door
- pipeline
- coal mine
- door leaf
- control stick
- 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 relates to a single sash two-way pressure bearing and regulating main air door of a coal mine, which comprises a supporting frame, a pipeline and a door sash. The utility model is characterized in that the door sash is positioned in the pipeline, and the shape of the door sash is the same with that of the cross section of the pipeline; a door shaft is arranged on a symmetric midline of the door sash; the pipeline wall is provided with a shaft hole which is matched with the door shaft, wherein one side of the door shaft extends out of the pipeline; the extending end of the door shaft is fixedly provided with an operating lever which controls the opening and the closing of the door sash, and the operating lever can be provided with a positioning device; the operating lever can be manually operated and can also be electrically controlled by being connected with a linear electric motor by a drawing lever. The utility model can instantly complete the switching of two sets of blowers under the condition of no air feeding stop. The utility model can be used for the switching running of main fan blowers for coal mine ventilation.
Description
One, technical field
The utility model relates to coal mine ventilation safety facility, is specifically related to the single fan of a kind of coal mine ventilation bidirectional bearing and regulates the main air door.
Two, background technology
The coal mine ventilation safety is the important step of Safety of Coal Mine Production, and the continual work of ventilation main fan can be avoided the gathering of gas, carbon monoxide, can effectively control the concentration index of pernicious gas.In order to guarantee safety in production, coal mine requires to install the main fan of two covers with constant power, a cover running job, and a cover stops standby, and when the running blower fan quit work for some reason, standby fan must be finished switching in 10 minutes.Usually, two cover fan parallel-connections are installed on the same air channel, stop distinguished and admirablely to cause distinguished and admirable short circuit from standby fan air channel loss, must seal its air channel when standby fan does not turn round.Because coal mine ventilates, under specific situation, need reverse air-supply, the air door in sealing standby fan air channel must can both bear pressure in the two sides.At present, the method in sealing standby fan air channel is: use brick envelope wall in the air channel, its shortcoming is: operate lack of standardizationly, the usefulness time is oversize, can not satisfy the requirement of 10 minutes switching blower fans.A little better method is: in the air channel of each blower fan, the door leaf of two monolateral unlatchings is installed, a forward opens and closes, and one oppositely opens and closes.But still there is defective in it: when two cover blower fans need switch, must stop air feed.As not stopping air feed, the pressure of going up ton is arranged on the door leaf, can't open and close door leaf; Open and close door leaf and enter the air channel operation by the staff, open the door leaf in a blower fan air channel, the door leaf of cutting out another blower fan air channel has pernicious gas in the air channel, be unfavorable for health; Can not realize the instantaneous switching of two cover blower fans; Can not realize the automation control that two main fans switch.
Three, summary of the invention
The purpose of this utility model is in order to overcome the deficiency of prior art, provides a kind of coal mine single fan bidirectional bearing that ventilates to regulate the main air door, and it can instantaneously finish the switchings of two cover blower fans under the situation that does not stop air feed.
The single fan of the utility model coal mine ventilation bidirectional bearing is regulated the main air door, comprise support, pipeline and door leaf, be characterized in: door leaf is positioned within the pipeline, and it is identical with the shape of cross section of pipeline, door-hinge is arranged on the door leaf symmetry center line, be provided with and the suitable axis hole of door-hinge on the duct wall, wherein the door-hinge of a side stretches out outside the pipeline, the door-hinge external part fixedly installs control stick, and when control stick was positioned at top dead centre, door leaf was in complete fastening position, after control stick revolves and turn 90 degrees, when being positioned at lower dead center, door leaf is in complete breakdown position, and described control stick is provided with positioner.Described positioner can be made of the fan-shaped location-plate that is provided with on the pipeline outer wall.
Operating principle of the present utility model is: door-hinge is arranged on the door leaf symmetry center line, the keying of door leaf no longer is monolateral carrying out, but bilateral carrying out, door leaf is in the process of door-hinge rotation, and the blast of door leaf one side is divided into the two halves of equivalent size from door leaf symmetry center line, half produces positive moment, half produces countertorque, and therefore, the blast on the door leaf is cancelled, door leaf opens and closes easily, is not subjected to influenced by wind pressure.
In the such scheme, described control stick can be handle shape.Manual operation can be finished the switching of two cover blower fans.
In the such scheme, described control stick can pass through pull bar, is connected with linear electric motors.Like this, adopt electric operation, can realize automation control.
The utility model has the advantages that: can be under the situation that does not stop air feed, the instantaneous switching of finishing two cover blower fans.
Four, description of drawings
Described in detail below in conjunction with the utility model embodiment accompanying drawing:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the lateral view of Fig. 1;
Fig. 3 is the utility model working state schematic representation.
Five, the specific embodiment
As depicted in figs. 1 and 2, the single fan of the utility model coal mine ventilation bidirectional bearing is regulated the main air door, comprise support 1, pipeline 2 and door leaf 3, door leaf 3 is positioned within the pipeline 2, and it is identical with the shape of cross section of pipeline 2, door-hinge 41,42 are arranged on the door leaf 3 symmetrical center lines, be provided with and door-hinge 41 on the duct wall, 42 suitable axis holes 51,52, door-hinge 41 stretches out outside the pipeline 2, and door-hinge 41 external parts fixedly install control stick 6, when control stick 6 is positioned at top dead centre 7, door leaf 3 is in complete fastening position, after control stick 6 revolves and turn 90 degrees, when being positioned at lower dead center 8, door leaf 3 is in full open position, and control stick 6 is provided with positioner.Positioner is made of the fan-shaped location-plate 9 that is provided with on pipeline 2 outer walls.As shown in Figure 3, two cover blower fans 12,13 are installed in parallel on same air channel 10, and the throttle joystick 61 on the blower fan 12 connects as one with the throttle joystick 62 on the blower fan 13, and is connected with pull bar 14, and pull bar 14 is connected with linear electric motors 11.The air door door leaf 31 of blower fan 12 is positioned within the pipeline 21, and the air door door leaf 32 of blower fan 13 is positioned within the pipeline 22, door leaf 31 and door leaf 32 90 degree that interlace, and promptly one is in the enable possition, and another is in the closed position.When two cover blower fans 12,13 need to switch, open motor 11, pull bar 14 is pulled, and control stick 61,62 rotates synchronously, and door leaf 31,32 rotates 90 degree synchronously, and that originally opens is closed, and that closed originally is unlocked, and moment finishes.
Claims (4)
1, the single fan of a kind of coal mine ventilation bidirectional bearing is regulated the main air door, comprise support, pipeline and door leaf, it is characterized in that: door leaf is positioned within the pipeline, and it is identical with the shape of cross section of pipeline, door-hinge is arranged on the door leaf symmetry center line, be provided with and the suitable axis hole of door-hinge on the duct wall, wherein the door-hinge of a side stretches out outside the pipeline, the door-hinge external part fixedly installs control stick, and when control stick was positioned at top dead centre, door leaf was in complete fastening position, after control stick revolves and turn 90 degrees, when being positioned at lower dead center, door leaf is in full open position, and described control stick is provided with positioner.
2, the single fan of coal mine ventilation according to claim 1 bidirectional bearing is regulated the main air door, and it is characterized in that: described positioner is made of the fan-shaped location-plate that is provided with on the described pipeline outer wall.
3, the single fan of coal mine ventilation according to claim 1 and 2 bidirectional bearing is regulated the main air door, and it is characterized in that: described control stick is handle shape.
4, the single fan of coal mine ventilation according to claim 1 and 2 bidirectional bearing is regulated the main air door, and it is characterized in that: described control stick is connected with linear electric motors by a pull bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520109685 CN2795445Y (en) | 2005-06-07 | 2005-06-07 | Single sash two-way pressure bearing regulating main air door of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520109685 CN2795445Y (en) | 2005-06-07 | 2005-06-07 | Single sash two-way pressure bearing regulating main air door of coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2795445Y true CN2795445Y (en) | 2006-07-12 |
Family
ID=36813200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520109685 Expired - Fee Related CN2795445Y (en) | 2005-06-07 | 2005-06-07 | Single sash two-way pressure bearing regulating main air door of coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2795445Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748059A (en) * | 2012-08-08 | 2012-10-24 | 枣庄王晁煤矿有限责任公司 | Double-fan air tube automatic changeover device |
| CN104454609A (en) * | 2014-11-17 | 2015-03-25 | 华唯金属矿产资源高效循环利用国家工程研究中心有限公司 | Mine ventilation system capable of preventing air current from being inverted and circulated and use method |
| CN104747500A (en) * | 2015-03-05 | 2015-07-01 | 成都佳美嘉科技有限公司 | Double-fan air duct with automatic switching air opening |
| CN111173552A (en) * | 2020-01-02 | 2020-05-19 | 贵州工程应用技术学院 | Colliery is safety device against wind |
-
2005
- 2005-06-07 CN CN 200520109685 patent/CN2795445Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748059A (en) * | 2012-08-08 | 2012-10-24 | 枣庄王晁煤矿有限责任公司 | Double-fan air tube automatic changeover device |
| CN104454609A (en) * | 2014-11-17 | 2015-03-25 | 华唯金属矿产资源高效循环利用国家工程研究中心有限公司 | Mine ventilation system capable of preventing air current from being inverted and circulated and use method |
| CN104747500A (en) * | 2015-03-05 | 2015-07-01 | 成都佳美嘉科技有限公司 | Double-fan air duct with automatic switching air opening |
| CN111173552A (en) * | 2020-01-02 | 2020-05-19 | 贵州工程应用技术学院 | Colliery is safety device against wind |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C32 | Full or partial invalidation of patent right | ||
| IP01 | Partial invalidation of patent right |
Decision date of declaring invalidation: 20080509 Decision number of declaring invalidation: 11662 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060712 |