CN202611741U - Air door locking device - Google Patents
Air door locking device Download PDFInfo
- Publication number
- CN202611741U CN202611741U CN 201220254578 CN201220254578U CN202611741U CN 202611741 U CN202611741 U CN 202611741U CN 201220254578 CN201220254578 CN 201220254578 CN 201220254578 U CN201220254578 U CN 201220254578U CN 202611741 U CN202611741 U CN 202611741U
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- CN
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- Prior art keywords
- locking rope
- locking
- air door
- door
- rope
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- Expired - Fee Related
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Abstract
The utility model provides an air door locking device. The air door locking device comprises air doors and a locking rope, wherein the two ends of the locking rope are fixed with the two adjacent air doors; and a plummet is arranged in the middle of the locking rope and hung on the locking rope through a fixed pulley. The air door locking device effectively separates air flow and avoids air flow short circuit. Steering pulleys are arranged at the steering stress positions of the locking rope, so that friction force is reduced and the locking rope is convenient to stretch; and the locking rope is fixedly connected with a door wall, a laneway side and the like through the fixed pulleys, so that friction on the locking rope is reduced, the service life of the locking rope is prolonged, the impact force of a door frame to a door leaf is reduced and a door frame plate is protected from being easily damaged.
Description
Technical field
The utility model relates to the damper control of ventilation equipment under the coal mine, is specifically related to a kind of mine air door blocking device.
Background technology
Air door is the ventilation equipment of coal mine operation, advancing, between the returnairshaft or advance, in the connection roadway between the return airway, both satisfied the needs of pedestrian and driving, playing again and cut off distinguished and admirablely, prevents the effect of distinguished and admirable short circuit.The coal mine lower wind door generally is no less than twice, and this twice air door can not be opened simultaneously, otherwise will cause distinguished and admirable short circuit, causes the accident of " an anti-threeway ".So all need the supporting air door blocking device that is provided with on the air door.
Air door blocking device commonly used at present is made up of locking rope, hanging hook, clamp, and mainly there is following defective in it:
1, this blocking device frictional resistance is big, requires great effort when causing air door to be opened, and is unfavorable for pedestrian, driving;
2, locking rope directly with frictions such as Men Qiang, door limit, hanging hook, easy breakdown;
3, locking rope is in relaxed state, causes reverse throttle not close fully, causes system's increase of leaking out;
4, receive influenced by wind pressure, door opening speed when closing differs, and the impact force that door leaf is produced is bigger, causes a side plate fragile, when blast is big, injures the holdee easily.
The utility model content
In order to overcome the deficiency that existing air door blocking device exists, the utility model provides a kind of air door blocking device, makes the air door closure effect good, and the force of sliding friction, the prolongation locking that reduce in the locking rope running are restricted application life.
In order to achieve the above object, the utility model provides a kind of air door blocking device, comprises air door and locking rope, and said locking rope two ends and adjacent twice air door are fixed, and is provided with in the middle of the locking rope and weighs down stone roller, and said bob stone roller is hung on the locking rope through fixed pulley.
Said locking rope is provided with angle pulley in the position near door opening.
The middle part of said locking rope is fixed by fixed pulley.
Locking between the twice air door is restricted through a complete locking and is realized, locking rope two ends are fixedly connected with adjacent twice air door respectively, and locking rope mid portion is fixed on the lane by fixed pulley and helps, and to prevent its skew, also reduces the resistance of locking rope; Near the air door place angle pulley is installed at locking rope two ends, avoids having reduced the frictional force of locking rope because of its stretching of the stressed obstruction of door opening.Be provided with in the centre of locking rope and weigh down stone roller, weigh down stone roller and hang on the locking rope through pulley, locking rope length rationally is set, when the twice air door was all closed, the locking rope was in relaxed state, weighed down stone roller because deadweight is fallen and was in tight state until the locking rope; When any one door opening, the unlatching of air door drives the locking rope and stretches, and makes it to be tight state, and another road air door then is in the state of closing, and plays effectively to cut off distinguished and admirablely, prevents the effect of distinguished and admirable short circuit.Restrict turning to stressed place angle pulley all to be set because of locking, make things convenient for its stretching to reduce friction.
In addition,, reduced friction, prolonged its application life the locking rope because the locking rope is to be fixedly connected with Men Qiang, lane group etc. through fixed pulley; And reducing the impact force of doorframe to door leaf, the shutter side plate is not fragile.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further to specify.
Fig. 1 is the utility model structural representation;
Among the figure: the 1-air door; 2-locking rope; The 3-angle pulley; 4-weighs down stone roller; 51,52-fixed pulley.
The specific embodiment
Air door blocking device as shown in Figure 1 comprises air door 1 and locking rope 2, and said locking 2 two ends of restricting are fixed with adjacent twice air door 1, and is fixed on the lane by fixed pulley 51 and helps.Be provided with in the middle of the locking rope 2 and weigh down stone roller 4, said bob stone roller 4 is hung on locking rope 2 through fixed pulley 52; Said locking rope 2 is provided with angle pulley 3 in the position of opening near air door 1.
Locking rope two ends are fixedly connected with adjacent twice air door respectively, and locking rope mid portion is fixed on the lane by fixed pulley and helps, and to prevent its skew, also reduce the resistance of locking rope; In the centre of locking rope the bob stone roller is set, weighs down stone roller and hang on the locking rope through pulley; Near the air door place angle pulley is installed at locking rope two ends, avoids having reduced the frictional force of locking rope because of its stretching of the stressed obstruction of door opening.
Locking rope length rationally is set, and when the twice air door was all closed, the locking rope was in relaxed state, weighed down stone roller because action of gravity falls to restricting until locking and was in tight state; When any one door opening, because of the effect of angle pulley is arranged, the locking rope is stretched at an easy rate; The bob stone roller rises, and the locking rope stretches and is tight state, and the tension of restricting owing to locking makes another road air door be in the state of closing; It is distinguished and admirable to play partition effectively, prevents the effect of distinguished and admirable short circuit.In addition,, reduced friction, prolonged its application life the locking rope because the locking rope is to be fixedly connected with Men Qiang, lane group etc. through fixed pulley; And reducing the impact force of doorframe to door leaf, the shutter side plate is not fragile.
The foregoing description is not limited only to the protection domain of the utility model, all based on the basic thought of the utility model and make amendment or the protection domain that all belongs to the utility model that changes in.
Claims (3)
1. an air door blocking device comprises air door and locking rope, it is characterized in that: said locking rope two ends and adjacent twice air door are fixed, and are provided with in the middle of the locking rope and weigh down stone roller, and said bob stone roller is hung on the locking rope through fixed pulley.
2. according to the described air door blocking device of claim 1, it is characterized in that: said locking rope is provided with angle pulley in the position near door opening.
3. air door blocking device according to claim 1 is characterized in that: the middle part of said locking rope is fixed by fixed pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254578 CN202611741U (en) | 2012-06-01 | 2012-06-01 | Air door locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254578 CN202611741U (en) | 2012-06-01 | 2012-06-01 | Air door locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202611741U true CN202611741U (en) | 2012-12-19 |
Family
ID=47345450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220254578 Expired - Fee Related CN202611741U (en) | 2012-06-01 | 2012-06-01 | Air door locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202611741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113657210A (en) * | 2021-07-30 | 2021-11-16 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Method, device and equipment for controlling air door in mine and storage medium |
-
2012
- 2012-06-01 CN CN 201220254578 patent/CN202611741U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113657210A (en) * | 2021-07-30 | 2021-11-16 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Method, device and equipment for controlling air door in mine and storage medium |
| CN113657210B (en) * | 2021-07-30 | 2023-11-07 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Method, device, equipment and storage medium for controlling air door in mine |
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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: 20121219 Termination date: 20130601 |