CN202266290U - Air-door interlocking device - Google Patents
Air-door interlocking device Download PDFInfo
- Publication number
- CN202266290U CN202266290U CN2011203694694U CN201120369469U CN202266290U CN 202266290 U CN202266290 U CN 202266290U CN 2011203694694 U CN2011203694694 U CN 2011203694694U CN 201120369469 U CN201120369469 U CN 201120369469U CN 202266290 U CN202266290 U CN 202266290U
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- air
- air door
- cylinder
- doors
- door
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Abstract
The utility model discloses an air-door interlocking device, which comprises two air doors, wherein two parallel large cylinders are arranged between the two air doors, a small cylinder is nested inside the large cylinder with the bottom end being closed and the upper end being opened, the center of the upper part of the small cylinder with both ends being closed is provided with a convex column, the convex column is connected with one end of a wire cable, and the wire cable passes through a crown block to be connected with an air door; and a T-shaped clamping block is arranged between the two large cylinders. The air-door interlocking device has a simple structure and small size, is convenient to install, is safe and reliable to use, can realize the automatic interlocking of air doors, is free from having the problem that the wire cable is broken, and can avoid the underground airflow short-circuit and air leakage phenomenon caused by poor interlocking of two air doors, poor closing tightness of the air doors and the like.
Description
Technical field
The utility model relates to a kind of coal mine lower wind door safety control, especially relates to a kind of air door interlock.
Background technology
Under coal mine, pedestrian, driving meeting bring influence to the dash system, if the twice air door is opened simultaneously in the tunnel; Can cause the distinguished and admirable short circuit of inlet air; Make subregion and work plane be in gentle breeze or windless condition, cause methane accumulation to be transfinited, bring threat for worker's life security.At present, the air door of ventilation system is single open-door or double swing doors mostly under the coal mine, in order to solve the separated wind switching-over problem under positive and negative wind direction two states; The air door great majority all are made into the structure at positive and negative two sects; One group of forward air door adopts an interlocking rope to lock together usually, and interlocking rope length is the stroke of the spacing of two air doors when adding one of them door opening, has played the effect of interlocking to a certain extent; But the difficult control of interlocking rope length; Occur the long or too short phenomenon of interlocking rope length easily, the interlocking rope is long to cause two air doors to open simultaneously easily, causes the interlocking failure; The too short air door that causes of interlocking rope can not be stopped and cause the interlocking rope to be broken when mine car passes through easily by complete opening.
Summary of the invention
For addressing the above problem, the purpose of the utility model provides a kind of simple in structure, volume is little, result of use is good air door interlock.
For realizing the foregoing invention purpose, the utility model adopts following technical scheme:
A kind of air door interlock; It comprises two air doors; Be provided with two large cylinders parallel to each other between two air doors, be arranged with little cylinder in the large cylinder of bottom sealing, open upper end, the roundlet tube center upper portion that two ends are all sealed is provided with a projection; Projection is connected with a wire rope one end, and wire rope is walked around fixed pulley and is connected with air door; Be provided with a T shape fixture block between two large cylinders.
Described air door interlock is provided with a fixed head between its two large cylinders, and T shape fixture block is installed on the fixed head through screw.
Owing to adopt aforesaid technical scheme, the utlity model has following superiority:
This air door interlock, it is simple in structure, novelty reasonable in design; Volume is little, is convenient to install, and it is effective to interlock; Safe and reliable, realize air door automatic interlock, the problem that wire rope is broken can not appear; Avoided the distinguished and admirable short circuit in down-hole that reason such as bad owing to twice air door interlocking, that air door is not closed completely causes and run the phenomenon that wind leaks out, be suitable under coal mine, applying.
Description of drawings
Fig. 1 is the structural representation of one of the utility model embodiment;
Fig. 2 is two the structural representation of the utility model embodiment;
Among the figure: 1-first air door; 2-second air door; 3-first wire rope; 4-first fixed pulley; 5-second fixed pulley; 6-second wire rope; The 7-second little cylinder; The second largest cylinder of 8-; The 9-fixture block; The first cylinder of 10-; The 11-first little cylinder.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the technical scheme of the utility model is done further explain.
Like Fig. 1, shown in 2; This air door interlock; It comprises two air doors; Be respectively first air door 1, second air door 2; Be provided with two first cylinders 10 parallel to each other, second largest cylinder 8 between two air doors, be arranged with the first roundlet tube 11, the second roundlet tube 7 in the first cylinder 10 of bottom sealing, open upper end, the second largest cylinder 8 respectively, two roundlet tube center upper portion that two ends are all sealed are provided with a projection; The projection of the first roundlet tube 11, the second roundlet tube 7 is connected with first wire rope 3, second wire rope, 6 one ends respectively, and first wire rope, second wire rope are walked around first fixed pulley 4, second fixed pulley 5 respectively and be connected with first air door 1, second air door 2; Be provided with a fixed head between first cylinder, the second largest cylinder, T shape fixture block 9 is installed on the fixed head through screw, and T shape fixture block both upper ends thereof is positioned at the first roundlet tube 11, the second roundlet tube, 7 tops; Above-mentioned first cylinder 10, second largest cylinder 8 are fixedly mounted on the body of wall between first air door 1, second air door 2.
The course of work of the utility model: with reference to Fig. 1; When one air door of one group of air door is 2 unlatchings of second air door; Second air door drives 6 motions of second wire rope, and the second roundlet tube 7 in the second largest cylinder 8 is pulled up, and in the second roundlet tube uphill process T shape fixture block 9 is promoted to make it to be pressed on the first roundlet tube 11; Control the rising activity of the first little cylinder, thereby first air door can not be opened; Automatically pulling second wire rope 6 can drive second air door 2 and closes automatically under the 7 deadweight effects of the second roundlet tube, has prevented that effectively air door from fitting badly the race wind air leakage phenomena that causes.
With reference to Fig. 2; When first air door 1 is opened; First air door drives 3 motions of first wire rope, and the first roundlet tube 11 is pulled up, and in the first roundlet tube uphill process T shape fixture block 9 is promoted to make it to be pressed on the second roundlet tube 7; Control the rising activity of the second little cylinder, thereby second air door can not be opened; Realization first air door 1 is closed automatically under the 11 deadweight effects of the first roundlet tube.
The air door interlock of the utility model, it can accurately control another road air door when one door opening open gap effectively raises the reliability that air door is interlocked.
Claims (2)
1. air door interlock; Comprise two air doors; It is characterized in that: be provided with two large cylinders parallel to each other between its two air doors, be arranged with little cylinder in the large cylinder of bottom sealing, open upper end, the roundlet tube center upper portion that two ends are all sealed is provided with a projection; Projection is connected with a wire rope one end, and wire rope is walked around fixed pulley and is connected with air door; Be provided with a T shape fixture block between two large cylinders.
2. air door interlock according to claim 1 is characterized in that: be provided with a fixed head between its two large cylinders, T shape fixture block is installed on the fixed head through screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203694694U CN202266290U (en) | 2011-09-30 | 2011-09-30 | Air-door interlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203694694U CN202266290U (en) | 2011-09-30 | 2011-09-30 | Air-door interlocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266290U true CN202266290U (en) | 2012-06-06 |
Family
ID=46157088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203694694U Expired - Fee Related CN202266290U (en) | 2011-09-30 | 2011-09-30 | Air-door interlocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266290U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244168A (en) * | 2013-05-09 | 2013-08-14 | 贵州晨辉达矿业工程设计有限公司 | Air door interlock limiting device |
| CN103696796A (en) * | 2013-12-25 | 2014-04-02 | 枣庄矿业集团高庄煤业有限公司 | Mechanical automatic locking device for coal mine air doors |
| CN106014469A (en) * | 2016-07-29 | 2016-10-12 | 永贵能源开发有限责任公司 | Mining air door interlocking device |
-
2011
- 2011-09-30 CN CN2011203694694U patent/CN202266290U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244168A (en) * | 2013-05-09 | 2013-08-14 | 贵州晨辉达矿业工程设计有限公司 | Air door interlock limiting device |
| CN103696796A (en) * | 2013-12-25 | 2014-04-02 | 枣庄矿业集团高庄煤业有限公司 | Mechanical automatic locking device for coal mine air doors |
| CN106014469A (en) * | 2016-07-29 | 2016-10-12 | 永贵能源开发有限责任公司 | Mining air door interlocking device |
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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: 20120606 Termination date: 20120930 |