Air door device for mine ventilation

Abstract

The utility model discloses an air door device for mine ventilation, which belongs to the technical field of mine ventilation and comprises an outer frame and a door plate fixedly welded on the inner side of the outer frame, a ventilation groove penetrating through two side walls of the door plate is formed on the door plate, and movable grooves are formed on two sides of the ventilation groove towards the inside of the door plate. An inner groove is formed in the position, located above one movable groove, in the door plate, a motor is vertically installed in the inner groove, a screw and an auxiliary rod are arranged in the two movable grooves respectively, an output shaft of the motor is coaxially connected with the screw, the screwing directions of threads at the two ends of the screw are opposite, the two ends of the auxiliary rod are welded to the door plate, and sealing plates are symmetrically arranged in the ventilation groove. One end of each sealing plate is arranged on the corresponding screw in a threaded and sleeving mode, the other end of each sealing plate is arranged on the corresponding auxiliary rod in a sliding and sleeving mode, and a dustproof net located in the corresponding ventilation groove is fixed to one sealing plate. According to the ventilation door device for mine ventilation, the ventilation quantity of the device can be conveniently adjusted, and the ventilation requirements of different mines are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine ventilation, and in particular relates to a damper device for mine ventilation. Background Art

[0002] The function of mine ventilation is to input fresh air into the mine, increase the oxygen concentration, dilute and remove toxic and harmful gases and dust in the mine. In order to make the underground airflow flow along the designated route, it is necessary to build damper devices in certain tunnels and air ducts to control the airflow.

[0003] In the process of realizing the utility model, the inventors found that there are at least the following problems in the technology: the size of the air inlet and the air outlet of the current damper device is fixed, and it is almost impossible to adjust the size of the air inlet and the air outlet, so the ventilation volume (per unit time) is also fixed, and it cannot adapt to the ventilation requirements of different mines.

[0004] For this reason, we propose a mine ventilation damper device to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a damper device for mine ventilation, the ventilation volume of which can be conveniently adjusted, adapted to the ventilation requirements of different mines, and can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A damper device for mine ventilation includes an outer frame and a door panel fixedly welded to the inner side of the outer frame, wherein ventilation grooves penetrating the two side walls are formed on the door panel, wherein movable grooves are formed on both sides of the ventilation groove toward the inside of the door panel, an inner groove is formed inside the door panel above one of the movable grooves, a motor is vertically installed in the inner groove, a screw rod and an auxiliary rod are respectively provided in the two movable grooves, wherein the output shaft of the motor is coaxially connected to the screw rod, the threads at both ends of the screw rod have opposite rotation directions, both ends of the auxiliary rod are welded to the door panel, sealing plates are symmetrically provided in the ventilation groove, one end of the sealing plate is threadedly sleeved on the screw rod, and the other end thereof is slidably sleeved on the auxiliary rod, a dustproof net located in the ventilation groove is fixed on one of the sealing plates, and the dustproof net is in contact with the inner wall of the ventilation groove, so that particulate matter contained in the wind passing through the ventilation groove is filtered by the dustproof net.

[0008] As a preferred embodiment, an air inlet and an air outlet are respectively formed between the two sealing plates and the ventilation slot, so that wind can enter the ventilation slot through the air inlet and be released from the air outlet after being filtered by the dustproof net.

[0009] As a preferred embodiment, a heat dissipation hole communicating with the inner groove is formed on one side wall of the door panel; thereby the heat dissipation of the motor is assisted by the heat dissipation hole, and the motor needs to be powered by external power facilities.

[0010] As a preferred embodiment, the screw rod and the auxiliary rod are both arranged vertically, and both ends of the screw rod are rotatably connected to the door panel, so that the screw rod can be driven to operate stably when the motor is running.

[0011] As a preferred embodiment, a slot is provided on one of the sealing plates, which passes through both sides of the sealing plates and communicates with the ventilation slots. A plug-in plate is inserted into the slot, wherein one end of the dustproof net is fixedly bonded to the plug-in plate; so that the dustproof net can be confined to the sealing plate through the plug-in plate.

[0012] As a preferred embodiment, a receiving groove is formed on the bottom wall of the slot, a spring is fixedly connected to the bottom wall of the receiving groove, and a spring block is connected to the spring to abut against the plug board; the four side walls of the spring block are in contact with the inner wall of the receiving groove, so that the plug board is confined in the slot.

[0013] In summary, the technical effects and advantages of the utility model are as follows:

[0014] The air door device for mine ventilation drives the screw rod to operate by driving the motor, so that the two sealing plates can be translated in opposite or opposite directions, thereby changing the size of the air inlet and the air outlet, and increasing or decreasing the ventilation volume in the ventilation slot, so that the ventilation volume of the device can be easily adjusted to meet the ventilation requirements of different mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 A vertical cross-sectional view of one side of the utility model;

[0017] Figure 3 is a vertical cross-sectional view of the other side of the utility model;

[0018] Figure 4 For this utility model Figure 3 A magnified view of the structure in the middle.

[0019] In the figure: 1. outer frame; 2. door panel; 3. ventilation slot; 4. air inlet; 5. air outlet; 6. inner slot; 7. motor; 8. heat dissipation hole; 9. movable slot; 10. screw rod; 11. auxiliary rod; 12. sealing plate; 13. slot; 14. plug-in board; 15. dust net; 16. storage slot; 17. spring; 18. spring block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 4 A damper device for mine ventilation includes an outer frame 1 and a door panel 2 fixedly welded to the inner side of the outer frame 1, a ventilation slot 3 penetrating the two side walls of the door panel 2 is formed, wherein both sides of the ventilation slot 3 are formed with movable slots 9 toward the inside of the door panel 2, an inner slot 6 is formed above one of the movable slots 9 inside the door panel 2, a motor 7 is vertically installed in the inner slot 6, a heat dissipation hole 8 communicating with the inner slot 6 is formed on one side wall of the door panel 2, so that the heat dissipation of the motor 7 is assisted by the heat dissipation hole 8, and the motor 7 needs to be powered by external power facilities;

[0022] A screw rod 10 and an auxiliary rod 11 are respectively arranged in the two movable grooves 9, wherein the output shaft of the motor 7 is coaxially connected to the screw rod 10, the threads at both ends of the screw rod 10 are in opposite directions, both ends of the auxiliary rod 11 are welded to the door panel 2, and a sealing plate 12 is symmetrically arranged in the ventilation groove 3, one end of the sealing plate 12 is threadedly sleeved on the screw rod 10, and the other end thereof is slidably sleeved on the auxiliary rod 11, the screw rod 10 and the auxiliary rod 11 are both arranged vertically, and both ends of the screw rod 10 are rotatably connected to the door panel 2, so that the motor 7 can drive the screw rod 10 to operate stably when it is running;

[0023] A dustproof net 15 located in the ventilation slot 3 is fixed on one of the sealing plates 12, and the dustproof net 15 is in contact with the inner wall of the ventilation slot 3, so that the particles contained in the wind passing through the ventilation slot 3 are filtered by the dustproof net 15, and an air inlet 4 and an air outlet 5 are respectively formed between the two sealing plates 12 and the ventilation slot 3, so that the wind can enter the ventilation slot 3 through the air inlet 4 and be released from the air outlet 5 after being filtered by the dustproof net 15;

[0024] A slot 13 is formed on one of the sealing plates 12, which passes through both sides of the slot and communicates with the ventilation slot 3. A plug plate 14 is inserted into the slot 13, wherein one end of a dust screen 15 is fixedly bonded to the plug plate 14, so that the dust screen 15 can be confined on the sealing plate 12 through the plug plate 14. A receiving slot 16 is formed on the bottom wall of the slot 13, a spring 17 is fixedly connected to the bottom wall of the receiving slot 16, and a spring block 18 abutting against the plug plate 14 is connected to the spring 17, and the four side walls of the spring block 18 are all in contact with the inner wall of the receiving slot 16, so that the plug plate 14 is confined in the slot 13.

[0025] The air damper device for mine ventilation: during operation, wind enters the ventilation slot 3 through the air inlet 4 and is then discharged from the air outlet 5. During this process, particulate matter contained in the wind will be filtered by the dustproof net 15, so that the particulate matter content in the air released from the air outlet 5 is relatively small, and the pollution to the environment in the mine is also reduced accordingly; if it is necessary to adjust the size of the openings of the air inlet 4 and the air outlet 5 (that is, to adjust the air intake), the motor 7 can be driven to drive the screw 10 to operate, so that the two sealing plates 12 are translated in opposite directions with the auxiliary rod 11, thereby adjusting the size of the openings of the air inlet 4 and the air outlet 5, that is, adjusting the air intake; personnel can also regularly take out the dustproof net 15 for cleaning, and the method of taking out the dustproof net 15 is: squeeze the bullet block 18 to make it enter the storage slot 16, and then pull the plug plate 14 and the dustproof net 15 out of the slot 13 horizontally, so that the dustproof net 15 can be cleaned.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A damper device for mine ventilation, comprising an outer frame (1) and a door plate (2) fixedly welded to the inner side of the outer frame (1), characterized in that: The door panel (2) is formed with ventilation slots (3) penetrating through the two side walls thereof, wherein movable slots (9) are formed on both sides of the ventilation slots (3) toward the inside of the door panel (2), an inner slot (6) is formed inside the door panel (2) above one of the movable slots (9), a motor (7) is vertically installed in the inner slot (6), a screw rod (10) and an auxiliary rod (11) are respectively provided in the two movable slots (9), wherein the output shaft of the motor (7) is coaxially connected to the screw rod (10); The threads at both ends of the screw rod (10) are rotated in opposite directions, both ends of the auxiliary rod (11) are welded to the door panel (2), and sealing plates (12) are symmetrically arranged in the ventilation groove (3), one end of the sealing plate (12) is threadedly sleeved on the screw rod (10), and the other end is slidably sleeved on the auxiliary rod (11), and a dustproof net (15) located in the ventilation groove (3) is fixed on one of the sealing plates (12), and the dustproof net (15) is in contact with the inner wall of the ventilation groove (3).

2. A damper device for mine ventilation according to claim 1, characterized in that: An air inlet (4) and an air outlet (5) are respectively formed between the two sealing plates (12) and the ventilation slot (3).

3. A damper device for mine ventilation according to claim 1, characterized in that: A heat dissipation hole (8) communicating with the inner groove (6) is formed on one side wall of the door panel (2).

4. A damper device for mine ventilation according to claim 1, characterized in that: The screw rod (10) and the auxiliary rod (11) are both arranged vertically, and both ends of the screw rod (10) are rotatably connected to the door panel (2).

5. A damper device for mine ventilation according to claim 1, characterized in that: One of the sealing plates (12) is provided with a slot (13) which passes through both sides thereof and communicates with the ventilation slot (3), and a plug plate (14) is inserted into the slot (13), wherein one end of the dustproof net (15) is fixedly bonded to the plug plate (14).

6. A damper device for mine ventilation according to claim 5, characterized in that: The bottom wall of the slot (13) is formed with a receiving groove (16), the bottom wall of the receiving groove (16) is fixedly connected with a spring (17), and the spring (17) is connected with a spring block (18) that abuts against the plug board (14).

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