CN214403649U - Mechanical automatic closing air door - Google Patents
Mechanical automatic closing air door Download PDFInfo
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- CN214403649U CN214403649U CN202022305174.2U CN202022305174U CN214403649U CN 214403649 U CN214403649 U CN 214403649U CN 202022305174 U CN202022305174 U CN 202022305174U CN 214403649 U CN214403649 U CN 214403649U
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- air door
- pulley
- traction rope
- traction
- door
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Abstract
The utility model discloses a mechanical automatic closing air door, which is of a rotary open-close type structure, a traction rope is connected on the air door, a diversion pulley is arranged at the position close to the air door, a positioning pulley is arranged on the side wall of a roadway, the traction rope bypasses the diversion pulley and then is drawn to the positioning pulley, the traction rope is fixed in the roadway, and a balance weight capable of tensioning the traction rope is hung between the positioning pulley and the fixing part of the tail end of the traction rope; the pull rope is pulled to move downwards by the gravity of the balance weight so as to pull the air door to be closed. The utility model discloses a set up haulage rope, a plurality of pulley and counter weight, after the air door was opened, through the action of gravity of counter weight, the pulley reaches the effect of automatic closing the door with the atress by being on a parallel with the effort that the air door converts the perpendicular to air door to avoid the human factor to cause the short circuit of wind current in the pit etc.. Meanwhile, the structure is very simple, a mechanical power mechanism and a power supply are not needed for driving, the safety and the reliability are higher, and the cost is much lower.
Description
Technical Field
The utility model relates to a mine construction technical field, concretely relates to automatic air door of mechanical type for keeping out wind in mine tunnel.
Background
In mine production, the wind speed and the wind volume of the underground part of the roadway are high, and the wind pressure is high. Especially, in plateau areas, the influence of the surface temperature and the atmospheric pressure is large, and the temperature inside a tunnel is reduced due to the overlarge wind speed and air quantity in winter, so that the tunnel is easy to freeze, and the safety of driving and pedestrians is seriously influenced. For the reasonable allotment amount of wind realizes that the air door is timely, self-closing, reduces the influence that above-mentioned condition brought, can erect one traditional manual air door or mechanical type automatic air door in the tunnel usually and keep out the wind. Generally erect traditional manual air door after, the locomotive driver need spend more time behind the air door and go to the switch door, seriously influences production efficiency, and the wind speed is inconvenient when too big more, wastes time and energy. The existing mechanical automatic air door is provided with a complex mechanical structure, and although the air door can be automatically closed, the air door is high in cost, easy to break down, difficult to maintain, required to be powered and driven, low in reliability, high in energy consumption and capable of storing more unreliable factors.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to the shortcoming that prior art exists, provide one kind and realize simple structure, practicality strong, adopt gravity automatic closing door, can save labour time, can improve production efficiency, close door safe and reliable, energy-conserving mechanical type self-closing air door.
In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a mechanical type self-closing air door, includes the air door, and the inward wind wall of air door perpendicular to tunnel is erect its characterized in that: the air door is of a rotary opening-closing structure, a traction rope is fixedly connected to the air door, a turning pulley is arranged at a position close to a door opening where the air door is located, a positioning pulley is arranged at the side wall of the roadway, the traction rope is wound around the turning pulley and then is drawn to the positioning pulley, the tail end of the traction rope is fixed in the roadway, and a balance weight capable of tensioning and drawing the traction rope is hung between the positioning pulley and the fixing position of the tail end of the traction rope; a structure for pulling the traction rope to move downwards to pull the air door to be closed is formed by the gravity of the balance weight, and the balance weight rises to the highest position when the air door is completely closed, wherein the highest position is not higher than the position of the positioning pulley; the counterweight is lowered to a lowermost position when the damper is fully open.
Furthermore, the counterweight has the weight capable of overcoming the wind pressure, the friction force of the door frame and the friction force of the traction rope to pull the air door to be closed, and the distance for pulling the traction rope when the counterweight moves up and down is the stroke required by closing the air door.
Furthermore, the head end of the traction rope is installed at the position, far away from the rotating shaft, of the upper part of the air door through a traction pulley, and the traction pulley and the air door are assembled and fixed; the turning and traction pulley is arranged at a position close to the traction pulley and fixed on the wind wall.
Furthermore, the air door comprises a left air door and a right air door, the two air doors are of a split door structure, a door closing traction rope and a traction pulley are respectively arranged on the two air doors, and a symmetrical installation structure is formed.
Furthermore, the air door is arranged to be a structure which is opened towards the opposite side of the negative pressure area of the roadway, the traction rope is pulled towards the inside of the negative pressure area, and the positioning pulley and the balance weight are arranged in the negative pressure area.
Furthermore, a positioning pulley is arranged between the positioning pulley and the tail end fixing part of the traction rope, the two positioning pulleys and the tail end fixing part of the traction rope are positioned on the same horizontal plane, and a balance weight is respectively arranged between the two positioning pulleys and between the middle positioning pulley and the tail end fixing part of the traction rope. Of course, the specific number of counterweights is determined according to the thrust required to open the damper and is not limited to one or two.
Furthermore, the counterweight is hung on the traction rope through a hanging wheel to form a structure capable of freely moving along the traction rope, and when the air door is opened, the counterweight moves upwards along the traction rope; when the air door does not have external force to promote, under the action of gravity of counter weight, the pulley will be atress by being on a parallel with the effort that the air door converts the perpendicular to air door, and the air door passes through the pulley and realizes closing the door automatically behind the haulage rope conversion atress direction.
Preferably, the traction pulley, the diversion pulley and the positioning pulley close to the air door are both bidirectional pulleys, the middle positioning pulley is a unidirectional pulley, and the tail end of the traction rope is fixed by a fixed pulley.
Preferably, the hauling cable is made of steel wire rope, such as
Steel wire ropes of (a), etc.
The utility model discloses a set up haulage rope, a plurality of pulley and counter weight, after the air door was opened, through the action of gravity of counter weight, make the pulley convert the atress into the effort of perpendicular to air door by being on a parallel with the air door, reach the effect of closing the door automatically after pulley and haulage rope conversion atress direction to can save working time, improve production efficiency. Meanwhile, the automatic door closing structure is very simple, a mechanical power mechanism is not needed, power supply driving is not needed, safety and reliability are higher, the automatic door closing structure cannot work due to power failure, and cost is much lower.
Drawings
Fig. 1 is a schematic plan view of the present invention (with the damper closed);
FIG. 2 is a sectional view taken from perspective A-A of FIG. 1 (with the damper open);
fig. 3 is a sectional view taken from the B-B perspective of fig. 1 (the damper open state).
In the figure, 1 is an air door, 2 is a traction rope, 3 is an air wall, 4 is a traction pulley, 5 is a diversion pulley, 6 is a positioning pulley, 7 is a positioning pulley, 8 is a fixed pulley, 9 is a counterweight, and 10 is a hanging wheel.
Detailed Description
In this embodiment, referring to fig. 1, 2, and 3, the mechanical automatic closing air door includes an air door 1, the air door 1 is erected perpendicular to an inward air wall 3 of a roadway, the air door 1 is of a rotary opening and closing structure, a traction rope 2 is fixedly connected to the air door 1, a turning pulley 5 is disposed at a position close to a door opening where the air door 1 is located, a positioning pulley 6 is disposed at a side wall of the roadway, the traction rope 2 is pulled to the positioning pulley 6 after bypassing the turning pulley 5, a tail end of the traction rope 2 is fixed in the roadway, and a counterweight 9 capable of tensioning the traction rope 2 is hung between the positioning pulley 6 and a fixing position of the tail end of the traction rope 2; the traction rope 2 is pulled to move downwards through the gravity of the counterweight 9 to pull the air door 1 to be closed, and when the air door 1 is completely closed, the counterweight 9 rises to the highest position which is not higher than the position of the fixed position of the positioning pulley 6 and the tail end of the traction rope 2; the counterweight is lowered to the lowest position when the damper 1 is fully opened.
The counterweight 9 has the weight capable of overcoming the wind pressure, the friction force of the door frame and the friction force of the traction rope 2 to pull the air door 1 to close, and the distance for pulling the traction rope 2 to pass when the counterweight 9 moves up and down is the stroke required by closing the air door 1.
The head end of the traction rope 2 is arranged at the position, far away from the rotating shaft, of the upper part of the air door 1 through a traction pulley 4, and the traction pulley 4 is fixedly assembled with the air door 1; the turning pulley 5 is arranged close to the traction pulley 4 and fixed on the wind wall 3.
The air door 1 comprises a left air door and a right air door, and is of a split door structure, a door closing traction rope 2 and a traction pulley 4 are respectively arranged on the two air doors 1, and a symmetrical mounting structure is formed.
The air door 1 is arranged to be in a structure which is opened towards the opposite side of the negative pressure area of the roadway, the traction rope 2 is used for traction towards the negative pressure area, and the positioning pulley 4 and the balance weight 9 are arranged in the negative pressure area.
A positioning pulley 7 is arranged between the positioning pulley 6 and the tail end fixing part of the traction rope 2, the two positioning pulleys 6 and 7 and the tail end fixing part of the traction rope 2 are positioned on the same horizontal plane, and a balance weight 9 is respectively arranged between the two positioning pulleys 6 and 7 and between the middle positioning pulley 7 and the tail end fixing part of the traction rope 2. Of course, the specific number of the balance weights 9 is determined according to the thrust required to open the damper 1, and is not limited to one or two.
The counterweight 9 is hung on the traction rope 2 through a hanging wheel 10 to form a structure capable of freely moving along the traction rope 2, and when the air door 1 is opened, the counterweight 9 moves upwards along the traction rope 2; when air door 1 does not have external force to promote, under the action of gravity of counter weight 9, the pulley will be atress by being on a parallel with the air door and convert the effort of perpendicular to air door 1, and air door 1 realizes closing the door automatically after through pulley and haulage rope 2 conversion atress direction.
The traction pulley 4, the diversion pulley 5 and the positioning pulley 6 close to the air door 1 are all bidirectional pulleys, the positioning pulley 6 in the middle is a unidirectional pulley, and the tail end of the traction rope 2 is fixed by a fixed pulley 8.
The hauling ropes 2 are made of steel wire ropes, such as
Steel wire ropes of (a), etc.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, i.e. the present invention is intended to cover all equivalent variations and modifications within the scope of the present invention.
Claims (9)
1. The utility model provides a mechanical type self-closing air door, includes the air door, and the inward wind wall of air door perpendicular to tunnel is erect its characterized in that: the air door is of a rotary opening-closing structure, a traction rope is fixedly connected to the air door, a turning pulley is arranged at a position close to a door opening where the air door is located, a positioning pulley is arranged at the side wall of the roadway, the traction rope is wound around the turning pulley and then is drawn to the positioning pulley, the traction rope is fixed in the roadway, and a balance weight capable of tensioning and drawing the traction rope is hung between the positioning pulley and a fixing position at the tail end of the traction rope; a structure for pulling the traction rope to move downwards to pull the air door to be closed is formed by the gravity of the balance weight, and the balance weight rises to the highest position when the air door is completely closed, wherein the highest position is not higher than the position of the positioning pulley; the counterweight is lowered to a lowermost position when the damper is fully open.
2. The mechanical auto-close damper of claim 1, wherein: the counterweight has the weight that can overcome wind pressure, door frame frictional force and haulage rope frictional force in order to pull the air door and close, and the distance that tractive haulage rope passed when the counterweight moves up and down is the required stroke of air door closure promptly.
3. The mechanical auto-close damper of claim 1, wherein: the head end of the traction rope is arranged at the position, far away from the rotating shaft, of the upper part of the air door through a traction pulley, and the traction pulley and the air door are assembled and fixed; the turning and traction pulley is arranged at a position close to the traction pulley and fixed on the wind wall.
4. The mechanical auto-close damper of claim 3, wherein: the air door comprises a left air door and a right air door, the two air doors are of a split door structure, a door closing traction rope and a traction pulley are respectively arranged on the two air doors, and a symmetrical mounting structure is formed.
5. The mechanical auto-close damper of claim 3, wherein: the air door is arranged to be a structure which is opened towards the opposite side of the negative pressure area of the roadway, the traction rope draws towards the inside of the negative pressure area, and the positioning pulley and the balance weight are arranged in the negative pressure area.
6. The mechanical auto-close damper of claim 1, wherein: a positioning pulley is arranged between the positioning pulley and the tail end fixing part of the traction rope, the two positioning pulleys and the tail end fixing part of the traction rope are positioned on the same horizontal plane, and a balance weight is respectively arranged between the two positioning pulleys and between the middle positioning pulley and the tail end fixing part of the traction rope.
7. The mechanical auto-close damper according to claim 1 or 6, wherein: the balance weight is hung on the traction rope through a hanging wheel to form a structure capable of freely moving along the traction rope.
8. The mechanical auto-close damper of claim 6, wherein: the traction pulley, the diversion pulley and the positioning pulley close to the air door are both bidirectional pulleys, the positioning pulley in the middle is a unidirectional pulley, and the tail end of the traction rope is fixed by a fixed pulley.
9. The mechanical auto-close damper of claim 1, wherein: the hauling cable is made of steel wire ropes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022305174.2U CN214403649U (en) | 2020-10-16 | 2020-10-16 | Mechanical automatic closing air door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022305174.2U CN214403649U (en) | 2020-10-16 | 2020-10-16 | Mechanical automatic closing air door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214403649U true CN214403649U (en) | 2021-10-15 |
Family
ID=78018559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022305174.2U Active CN214403649U (en) | 2020-10-16 | 2020-10-16 | Mechanical automatic closing air door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214403649U (en) |
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2020
- 2020-10-16 CN CN202022305174.2U patent/CN214403649U/en active Active
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