CN2878677Y - Air-powered security air door under coal well - Google Patents
Air-powered security air door under coal well Download PDFInfo
- Publication number
- CN2878677Y CN2878677Y CNU2006200891172U CN200620089117U CN2878677Y CN 2878677 Y CN2878677 Y CN 2878677Y CN U2006200891172 U CNU2006200891172 U CN U2006200891172U CN 200620089117 U CN200620089117 U CN 200620089117U CN 2878677 Y CN2878677 Y CN 2878677Y
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Abstract
A pneumatic safety air door for coal mine comprises an air door fabricated by steel, a telescopic frame connected through a spring on the lateral of the door frame, a pneumatic control shutter, a manual shutter and a viewing window arranged on the door plank. An itinerary valve and other reversal valves, which are connected to an air door cylinder and a shutter cylinder are in the side of the door frame, while the air door is opened by compressed air, firstly start pneumatic shutter then start air door and output chain control signals, while the air door is closed, firstly close the air door then close the pneumatic shutter, after closing the air door, the door-closing signals can be output manually, while inputting the chain control signals, stop compressed air, while opening the air door and inputting door-closing signals, a pneumatic circuit can be activated to close the opened air door. The utility model has high strength and long service life, its doorframes are equipped with telescopic frames which can protect doorframes while oppressed by wall rock, as a shutter is arranged on the door plank, the door can be opened easily and reduce vibration to ensure ventilation safety, pneumatic control makes door opening easily and conveniently, the strict mutual interlocks between two doors are carried out, so the operation is safe and reliable.
Description
Technical field
The utility model relates to a kind of coal mine lower wind door, particularly a kind of doorframe of coal mine lower wind door, door leaf and Pneumatic control circuit.
Background technology
According to " safety regulations in coal mine " requirement, between advancing under the coal mine, the returnairshaft and mainly advance, each connection roadway that need use between the return aircourse must install the twice air door that reciprocal interlocks, the twice air door that reciprocal interlocks can be a closed condition simultaneously, when one air door was opening, another sect must be a closed condition.In the prior art, air door under the coal mine is the wooden air door that timber is made mostly, doorframe and door leaf that the useful timber of wooden air door is made, the connection hinge is arranged between doorframe and the door leaf, in order to reciprocal interlock, adopt wire rope, spring cross locking and balancing weight to form the device that reciprocal interlocks between the wooden air door of twice usually.This wooden air door is owing to be to make with timber, and the intensity of air door is low, damages easily, and effort is very inconvenient when opening with manpower; The device of forming with wire rope, spring cross locking and balancing weight that reciprocal interlocks does not belong to the device that reciprocal interlocks on the complete meaning, another road air door still has the leeway of opening under the situation that one air door not exclusively opened, wire rope comes off out in the groove of pulley easily and blocks wire rope when air door switch, make air door be difficult to open or close, the twice air door is subjected to the traction of wire rope, be subjected to force unbalance, door leaf easy deformation, damage cause and leak out, and cause security incident.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, to propose a kind of intensity height that can realize between the twice air door that strictness is reciprocal interlocked that makes, and opens easily pneumatic relief damper under the coal mine.
The utility model is realized with the following method.
The air door that the useful steel of pneumatic relief damper are made under the coal mine, air door has doorframe and door leaf, the connection hinge is arranged between doorframe and the door leaf, the left frame of doorframe, the outside of left frame and upper side frame is compounded with the telescopic frame that cross section is a П shape respectively, be evenly equipped with spring between the telescopic frame frame, one side of door leaf top has pneumatic louvre, the opposite side of door leaf top has manual louvre, pneumatic louvre is connected with the louvre cylinder that can control pneumatic louvre switch, manually louvre is connected with the positive left-hand thread nut-screw of regulating manual louvre switch, between doorframe and door leaf, be hinged with the air door cylinder, door leaf and pneumatic louvre are connected with the stroke stop valve, the Pneumatic control circuit that includes above-mentioned stroke stop valve and other reversal valve that links to each other with the louvre cylinder with the air door cylinder is arranged in the frame of doorframe, the Pneumatic control circuit import of calming the anger, advancing of interlock control signal, advancing of outlet and pass gate control signal, outlet, Pneumatic control circuit has following function: when opening air door with calming the anger, open pneumatic louvre earlier and open air door again, and output interlock control signal, when closing air door, close air door earlier and close pneumatic louvre again, can close gate control signal with manually exporting after closing air door, behind the input interlock control signal, by pressurized air source, gate control signal is closed in input after opening air door, and the air door of unlatching is closed.
During installation, between advancing under coal mine, the returnairshaft and mainly advance, each connection roadway that need use between the return aircourse installs twice the utility model, during installation, at need the air door place is installed earlier and builds out air door by laying bricks or stones with constructional materials, again pneumatic relief damper under the coal mine is installed in the air door, regulate the positive left-hand thread nut of manual louvre, manual louvre is adjusted to suitable aperture, the import of calming the anger is linked to each other with pressurized air source under the coal mine, the import and export of the interlock control signal between the twice air door with the pass gate control signal linked to each other with pipeline respectively.
Because the Pneumatic control circuit that has above-mentioned functions in the utility model has following effect during use.
When opening the door, connect pressurized air source with reversal valve, allow the pioneer's louvre cylinder of taking offence of calming the anger open ventilate, after pneumatic louvre was opened, the stroke stop valve conducting that links to each other with louver window fan allowing the driving air door cylinder of calming the anger open air door again; At closing time, reversal valve is oppositely connected and is calmed the anger, and allowing calms the anger drives the air door cylinder earlier and close air door, and after air door was closed, the stroke stop valve conducting that links to each other with door leaf allowing the driving louvre cylinder of calming the anger close louvre again; In the twice air door, behind one door opening, exportable interlock control signal, the pressurized air source locking-valve that makes another sect is realized reciprocal interlocking of two sects in cut-off state; Open at another road air door, this road air door is during because of the closed condition of reciprocal interlocking, if desired this road air door of being closed because of reciprocal interlocking is opened, gate control signal is closed in available manual output, another road air door is closed in advance, releasing is reciprocal interlocked, and promptly can open the air door that this road is closed.
The utlity model has following advantage:
1. air door is made with steel, the intensity height, the outside of door jamb has the telescopic frame that links to each other with spring, and when doorframe is subjected to the country rock compressing, but the spring absorption pressure makes the telescopic frame retraction, the protection doorframe is not damaged by pressure, when spring is compressed to the end, can remove and build out air door by laying bricks or stones with constructional materials, allow spring restore to the original state and build air door again by laying bricks or stones, air door is installed on the air door of building by laying bricks or stones again long service life;
2. there is manual louvre door leaf top, during use, can regulate the aperture of louvre, guarantee, between the returnairshaft and advance, the return aircourse has under the prerequisite of sufficient gas flow, making has suitable a small amount of wind to pass through in the connection roadway, guarantee the down-hole ventilation safety;
3. there is pneumatic louvre door leaf top, when opening the door, opens the pneumatic louvre door that blows in again earlier, reduces the leeway of air door both sides, makes to open the door laborsavingly, at closing time, closes air door earlier and closes pneumatic louvre again, alleviates the vibrations of closing air door;
4. the utlity model has Pneumatic control circuit, can be with the opening and closing air door of calming the anger, air door and pneumatic louvre interlock, convenient and strength-saving, exportable interlock control signal behind the unlatching air door, another sect is lockable can not open, and realizes strict reciprocal interlocking, and closes behind the door and can close gate control signal with manual output, close the air door that another road has been opened, after gate control signal is closed in input during door opening, the air door of unlatching is closed, air door is safe and reliable to operation.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is that schematic diagram cuts open in the master office of looking of pneumatic relief damper under the coal mine;
Fig. 2 is that schematic diagram cuts open in the office of overlooking of pneumatic relief damper under the coal mine;
Fig. 3 is the Pneumatic control circuit principle schematic of pneumatic relief damper under the twice coal mine.
The specific embodiment
Fig. 1, Fig. 2, among Fig. 3, the air door that the useful steel of pneumatic relief damper are made under the coal mine, air door has doorframe 1 and door leaf 2, the hinge 3 of connection is arranged between doorframe and the door leaf, the left frame of doorframe, the outside of left frame and upper side frame is compounded with the telescopic frame 4 that cross section is a П shape respectively, 5,6, be evenly equipped with spring 7 between telescopic frame and the frame, there is pneumatic louvre 8 in the left side of door leaf top, there is manual louvre 9 on the right side of door leaf top, pneumatic louvre is connected with the louvre cylinder 10 that can control pneumatic louvre switch, manually louvre is connected with the positive left-hand thread nut-screw 11 of regulating manual louvre switch, between doorframe and door leaf, be hinged with air door cylinder 12, door leaf closes and is connected with interlocking stroke stop valve 13 and two-bit triplet stroke valve 14, pneumatic louvre is connected with related stroke stop valve 15, the Pneumatic control circuit that includes above-mentioned stroke valve and reversal valve that links to each other with the louvre cylinder with the air door cylinder is as shown in Figure 3 arranged in the frame of doorframe, the Pneumatic control circuit import 16 of calming the anger, interlock control signal advances, outlet 17,18, the pass gate control signal advances, outlet 19,20, Pneumatic control circuit has following function: when opening air door with calming the anger, open pneumatic louvre earlier and open air door again, and output interlock control signal, when closing air door, close air door earlier and close pneumatic louvre again, can close gate control signal with manually exporting after closing air door, behind the input interlock control signal, by pressurized air source, gate control signal is closed in input after opening air door, and the air door of unlatching is closed.
Among Fig. 3, the Pneumatic control circuit that identical A, B twice air door are arranged, in the Pneumatic control circuit of A road air door, by by envelope formula 3-position 4-way main control valve 21 in manually, louvre cylinder 10, connection stroke stop valve 15, air door cylinder 12, two-bit triplet stroke valve 14 and the air door switch loop formed of valve 23 alternately, by hand stop valve 22, replace gate control signal loop, pass that valve 23, gas control shutoff valve 24 form and the interlock control signal loop of forming by interlocking stroke stop valve 13, gas control locking-valve 25.
In the air door switch loop, main control valve links to each other with the import 16 of calming the anger by one way valve 31, a path of main control valve links to each other with the gas port 26 of windowing of louvre cylinder, link to each other with the gas port 27 that opens the door of air door cylinder through connection stroke stop valve 15, the end of another path through replacing valve 23 of main control valve links to each other with the gas port 28 of closing the door of air door cylinder and links to each other with the pass window gas port 29 of louvre cylinder through two-bit triplet stroke valve 14 again.
Close in the gate control signal loop, hand stop valve 22 links to each other with pass gate control signal outlet 20 with one way valve 31 respectively, closing gate control signal import 19 links to each other with the other end that replaces valve 23, and link to each other with the control end of gas control shutoff valve 24, gas control shutoff valve 24 links to each other with the gas port 27 that opens the door of air door cylinder.
In the interlock control signal loop, gas control locking-valve 25 is connected on the passage of calming the anger behind the one way valve 31, the control end of gas control locking-valve 25 links to each other with interlock control signal import 17, and interlocking stroke stop valve 13 links to each other with interlock control signal outlet 18 with one way valve 31 outlets respectively.
When opening air door, make main control valve in position, a left side, press wind to open pneumatic louvre 8 through the gas port 26 of windowing that gas control locking-valve 25, main control valve enter louvre cylinder 10, reduce the leeway of air door both sides, after pneumatic louvre is opened, 15 conductings of 2/2-way stroke valve press wind to enter the gas port 27 that opens the door of air door cylinder, open air door 2; When closing air door, make main control valve, press wind through gas control locking-valve 25, main control valve, alternately valve 23 enters the gas port 28 of closing the door of air door cylinder in right position, close air door, close two-bit triplet stroke valve 14 conductings behind the air door, the pass window gas port 29 of calming the anger and entering louvre cylinder 10 is closed pneumatic louvre 8.
After opening air door, 13 conductings of interlocking stroke stop valve, can export interlock control signal, from interlock control signal outlet output, when the interlock control signal of another road air door input is imported in the interlock control signal import, interlock control signal drives gas control locking-valve 25 to be ended, and disconnects pressurized air source, and air door can not be opened.
Open at another road air door, this road air door is during because of the closed condition of reciprocal interlocking, if desired this road air door of being closed because of reciprocal interlocking is opened, manual conducting hand stop valve 22, close gate control signal from closing gate control signal outlet output, another sect is closed in advance, and releasing is reciprocal interlocked, and promptly can open the air door that this road is closed; At this road air door is that another sect of open mode is when being closed condition, open another road air door if desired, in the time of must closing this road air door that is reciprocal interlocked earlier, can close gate control signal from another sect output, the pass gate control signal of input is through closing gate control signal import 19, replacing the gas port 28 of closing the door that valve 23 enters the air door cylinder, air door is closed, and releasing is reciprocal interlocked, and another road air door is opened.
In order to observe the situation of air door opposite side, on the door leaf of air door glass vision panel 30 can be arranged.
For Pneumatic control circuit of the present utility model when pressing the wind regime blowing-out still can use a period of time, be connected with accumulator 32 in one way valve 31 outlets of the import of calming the anger.
When Pneumatic control circuit can not normally use after pressing the wind regime blowing-out, when the gas port 27 that opens the door of air door cylinder 12 was connected with 33, two four-way check valve 33 conductings of two four-way check valves with the gas port 28 of closing the door, the air door cylinder connect atmosphere, available manual open and close air door.
Above-mentioned main control valve 21 is hand-operated valves.The driver's open and close air door onboard of driving a vehicle for convenience, main control valve can be a remote-controlled valve, remote-controlled valve has the remote control switch in master control electromagnetic valve and the prior art, and the open and close output contact of remote control switch receiver links to each other respectively with the open and close of master control electromagnetic valve input contact.Can remote control open and close air door on the driving driver steering position onboard apart from the certain distance of air door.
Claims (8)
1. pneumatic relief damper under the coal mine, air door has doorframe and door leaf, the connection hinge is arranged between doorframe and the door leaf, it is characterized in that: air door is made with steel, the left frame of doorframe, the outside of left frame and upper side frame is compounded with the telescopic frame that cross section is a ∏ shape respectively, be evenly equipped with spring between telescopic frame and the frame, one side of door leaf top has pneumatic louvre, the opposite side of door leaf top has manual louvre, pneumatic louvre is connected with the louvre cylinder that can control pneumatic louvre switch, manually louvre is connected with the positive left-hand thread nut-screw of regulating manual louvre switch, between doorframe and door leaf, be hinged with the air door cylinder, door leaf and pneumatic louvre are connected with the stroke valve, have in the frame of doorframe with the air door cylinder links to each other with the louvre cylinder and include above-mentioned stroke valve and other reversal valve, when opening air door with calming the anger, open pneumatic louvre earlier and open air door again, and output interlock control signal, when closing air door, close air door earlier and close pneumatic louvre again, can close gate control signal with manually exporting after closing air door, behind the input interlock control signal, by pressurized air source, gate control signal is closed in input after opening air door, the import of calming the anger of the Pneumatic control circuit that the air door of unlatching is closed, Pneumatic control circuit, advancing of interlock control signal, advancing of outlet and pass gate control signal, outlet.
2. by pneumatic relief damper under the described coal mine of claim 1, it is characterized in that: on the door leaf of described air door glass vision panel is arranged.
3. by pneumatic relief damper under claim 1 or the 2 described coal mine, it is characterized in that: described Pneumatic control circuit has by manually middle envelope formula 3-position 4-way main control valve [21], louvre cylinder [10], connection stroke stop valve [15], air door cylinder [12], two-bit triplet stroke valve [14] and the air door switch loop formed of valve [23] alternately, by hand stop valve [22], replace valve [23], the gate control signal loop, pass that gas control shutoff valve [24] is formed and by interlocking stroke stop valve [13], the interlock control signal loop that gas control locking-valve [25] is formed
In the air door switch loop, main control valve links to each other with the import of calming the anger [16] by one way valve [31], a path of main control valve links to each other with the gas port of windowing [26] of louvre cylinder, link to each other with the gas port that opens the door [27] of air door cylinder through connection stroke stop valve [15] again, the end of another path through replacing valve [23] of main control valve links to each other with the gas port of closing the door [28] of air door cylinder and links to each other with the pass window gas port [29] of louvre cylinder through two-bit triplet stroke valve [14]
Close in the gate control signal loop, hand stop valve [22] links to each other with pass gate control signal outlet [20] with one way valve [31] respectively, closing gate control letter import [19] links to each other with the other end that replaces valve [23], and link to each other with the control end of gas control shutoff valve [24], gas control shutoff valve [24] links to each other with the gas port that opens the door [27] of air door cylinder
In the interlock control signal loop, gas control locking-valve [25] is connected on the passage of calming the anger behind the one way valve [31], the control end of gas control locking-valve [25] links to each other with interlock control signal import [17], and interlocking stroke stop valve [13] links to each other with interlock control signal outlet [18] with one way valve [31] outlet respectively.
4. by pneumatic relief damper under the described coal mine of claim 3, it is characterized in that: described one way valve outlet is connected with accumulator.
5. by pneumatic relief damper under the described coal mine of claim 3, it is characterized in that: the gas port that opens the door of described air door cylinder is connected with two four-way check valves with the gas port of closing the door.
6. by pneumatic relief damper under claim 1, the 2 or 4 described coal mine, it is characterized in that: described main control valve is a remote-controlled valve, remote-controlled valve has the remote control switch in master control electromagnetic valve and the prior art, and the open and close output contact of remote control switch receiver links to each other respectively with the open and close of electromagnetism main control valve input contact.
7. by pneumatic relief damper under the described coal mine of claim 3, it is characterized in that: described main control valve is a remote-controlled valve, remote-controlled valve has the remote control switch in master control electromagnetic valve and the prior art, and the open and close output contact of remote control switch receiver links to each other respectively with the open and close of electromagnetism main control valve input contact.
8. by pneumatic relief damper under the described coal mine of claim 5, it is characterized in that: described main control valve is a remote-controlled valve, remote-controlled valve has the remote control switch in master control electromagnetic valve and the prior art, and the open and close output contact of remote control switch receiver links to each other respectively with the open and close of electromagnetism main control valve input contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200891172U CN2878677Y (en) | 2006-01-25 | 2006-01-25 | Air-powered security air door under coal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200891172U CN2878677Y (en) | 2006-01-25 | 2006-01-25 | Air-powered security air door under coal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2878677Y true CN2878677Y (en) | 2007-03-14 |
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ID=37861092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200891172U Expired - Fee Related CN2878677Y (en) | 2006-01-25 | 2006-01-25 | Air-powered security air door under coal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2878677Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701071A (en) * | 2017-11-16 | 2018-02-16 | 广新海事重工股份有限公司 | A kind of supply vessel shutter pneumatic interlocking device |
| CN111075494A (en) * | 2019-11-19 | 2020-04-28 | 煤炭科学技术研究院有限公司 | Novel mining pressure balance formula air door |
| CN112360540A (en) * | 2020-11-27 | 2021-02-12 | 中煤科工集团重庆研究院有限公司 | Pneumatic control system for controlling wind window of mining disaster area |
| CN114263489A (en) * | 2021-12-21 | 2022-04-01 | 山东东山新驿煤矿有限公司 | Small automatic air door for coal mine, control method and air door system |
-
2006
- 2006-01-25 CN CNU2006200891172U patent/CN2878677Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701071A (en) * | 2017-11-16 | 2018-02-16 | 广新海事重工股份有限公司 | A kind of supply vessel shutter pneumatic interlocking device |
| CN111075494A (en) * | 2019-11-19 | 2020-04-28 | 煤炭科学技术研究院有限公司 | Novel mining pressure balance formula air door |
| CN111075494B (en) * | 2019-11-19 | 2023-03-17 | 煤炭科学技术研究院有限公司 | Novel mining pressure balance formula air door |
| CN112360540A (en) * | 2020-11-27 | 2021-02-12 | 中煤科工集团重庆研究院有限公司 | Pneumatic control system for controlling wind window of mining disaster area |
| CN114263489A (en) * | 2021-12-21 | 2022-04-01 | 山东东山新驿煤矿有限公司 | Small automatic air door for coal mine, control method and air door system |
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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: 20070314 Termination date: 20140125 |