Push-pull type air window in underground coal mine

Abstract

The utility model relates to the technical field of mine ventilation, in particular to an underground coal mine push-pull type air window which comprises a door frame, two concentric-square-shaped sliding rails are fixedly installed on the door frame, moving blocks are installed at the upper ends and the lower ends of the sliding rails in a sliding mode, and a door plate is fixedly installed between the two moving blocks. Rectangular openings are formed in the front end and the rear end of the moving block, rectangular cavities are formed in the front end and the rear end of the moving block, a plurality of air outlet holes are formed in the inner walls of the rectangular openings, spraying pipes are fixedly installed in the air outlet holes, and an air inlet pipe is installed on the side wall of the moving block; one end of the gas inlet pipe is provided with a gas collecting assembly used for collecting gas into the rectangular cavity. According to the utility model, through the mutual cooperation of the gas collection assembly, the rectangular cavity, the gas outlet hole and the plurality of spray pipes, gas can be continuously sprayed into the chute, and dust falling from the chute is blown out from the strip-shaped hole under the action of the gas, so that the dust is prevented from influencing the sliding of the door plate, and the operation of an operator is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mine ventilation, in particular to a push-pull type wind window in an underground coal mine. Background Art

[0002] Underground ventilation in coal mines is one of the most important technical means to ensure the safety of mine production. With the continuous development and changes in production, the working face is constantly advancing and replacing, and the tunnel wind resistance, network structure and required air volume are constantly changing. The natural distribution of tunnel air volume often cannot meet the air volume requirements of the work site. Therefore, the air volume of the underground tunnel network must be adjusted in time. Air volume adjustment has a significant impact on mine production safety and ventilation energy consumption. The function of air volume adjustment is generally achieved by adjusting the wind window in the mine.

[0003] When the existing push-pull wind window works in the mine, the dust in the mine usually falls on the door panel slideway in the wind window. When the door panel needs to be pulled to adjust the air volume, the presence of dust will affect the sliding of the door panel, which is very inconvenient for manual operation. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: when the existing push-pull wind window works in a mine, dust in the mine usually falls on the door panel slideway in the wind window. When the door panel needs to be pulled to adjust the air volume, the presence of dust will affect the sliding of the door panel, which is very inconvenient for manual operation. A push-pull wind window for underground coal mines is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A push-pull wind window in a coal mine, comprising a door frame, two circular slide rails are fixedly mounted on the door frame, and circular slide grooves are provided on the two slide rails, and moving blocks are slidably mounted on both ends of the slide grooves, and a door panel is fixedly mounted between the two moving blocks;

[0007] Rectangular openings are provided at both the front and rear ends of the moving block, and rectangular cavities are provided at both the front and rear ends of the moving block. A plurality of air outlet holes connected to the rectangular cavities are provided on the inner wall of the rectangular opening, and nozzles are fixedly installed in the plurality of air outlet holes, and one end of the nozzles is inclined toward the bottom wall of the slide groove. An air inlet pipe connected to the rectangular cavity is installed on the side wall of the moving block, and an air collecting assembly for collecting air into the rectangular cavity is provided at one end of the air inlet pipe, and a strip hole connected to the slide groove is provided on the side of the slide rail.

[0008] Preferably, the gas collecting assembly includes a gas collecting cylinder fixedly installed at one end of the air intake pipe, a push plate slidably installed in the gas collecting cylinder, a circular tube fixedly connected to the gas collecting cylinder and a transmission component for driving the push plate to move up and down. The gas collecting cylinder is connected to the air intake pipe and the circular tube. A first one-way valve that only allows gas to flow from the gas collecting cylinder to the air intake pipe is installed in the air intake pipe, and a second one-way valve that only allows gas to enter the gas collecting cylinder from the outside is installed in the circular tube.

[0009] Preferably, a movable hole is provided at the lower end of the gas collecting cylinder, and the transmission component includes a push rod slidably installed in the movable hole, a telescopic spring sleeved on the push rod, and a strip plate fixedly installed on the side of the door frame, one end of the push rod is fixedly connected to the push plate, and the two ends of the telescopic spring are respectively fixedly connected to the surface of the push plate and the inner wall of the gas collecting cylinder, and a plurality of isosceles triangle guide openings of the same shape are equidistantly provided on the strip plate, and the end of the push rod away from the push plate slides in the guide opening.

[0010] Preferably, a rotation groove is formed at one end of the push rod, a roller is rotatably mounted in the rotation groove, and the roller is in rolling contact with the inner wall of the guide opening.

[0011] Preferably, two strip-shaped positioning plates are fixedly installed on the door frame, and a plurality of positioning holes are provided on the two positioning plates. A mounting block is fixedly installed on the door panel, and a socket is provided on the mounting block. A positioning rod is inserted into the socket, and a U-shaped pull rod is fixedly installed on one end of the positioning rod, and one end of the positioning rod is inserted into one of the positioning holes.

[0012] Preferably, mounting rods are fixedly mounted on both the front and rear ends of the moving block, and a V-shaped scraper is fixedly mounted on the mounting rods.

[0013] In the utility model, the beneficial effects are:

[0014] 1. When pushing the door panel, the gas collecting assembly, rectangular cavity, air outlet and multiple nozzles cooperate with each other to continuously spray gas into the slide slot. Under the action of the gas, the dust falling in the slide slot is blown out from the strip holes to prevent the dust from affecting the sliding of the door panel, making the operation more convenient for the operator;

[0015] 2. After the air volume is adjusted, the door panel can be positioned by the cooperation of the mounting block, positioning plate, positioning rod and pull rod to prevent the door panel from shifting due to the wind. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a push-pull type wind window in a coal mine proposed by the utility model;

[0017] Figure 2This is a schematic diagram of the three-dimensional partial structure of a moving block in a push-pull type wind window in an underground coal mine proposed by the utility model;

[0018] Figure 3 This is a schematic cross-sectional structure diagram of one end of a moving block in a push-pull type wind window in a coal mine underground proposed by the utility model;

[0019] Figure 4 for Figure 1 A magnified view of the structure at center;

[0020] Figure 5 for Figure 2 A magnified view of the structure at B in the middle;

[0021] Figure 6 for Figure 2 Enlarged view of the structure at point C in the middle.

[0022] In the figure: 1 door frame, 2 slide rails, 3 moving blocks, 4 door panels, 5 rectangular cavities, 6 nozzles, 7 air intake pipes, 8 air collecting cylinders, 9 push plates, 10 round tubes, 11 push rods, 12 telescopic springs, 13 strip plates, 14 rollers, 15 positioning plates, 16 mounting blocks, 17 positioning rods, 18 pull rods, 19 scrapers, and 20 mounting rods. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1-Figure 6 A push-pull windshield in a coal mine, comprising a door frame 1, on which two circular slide rails 2 are fixedly mounted, on which the two slide rails 2 are provided with circular slide grooves, on which moving blocks 3 are slidably mounted at both ends of the slide grooves, and between which a door panel 4 is fixedly mounted;

[0025] Rectangular openings are provided at both the front and rear ends of the moving block 3, and rectangular cavities 5 are provided at both the front and rear ends of the moving block 3. A plurality of air outlets connected to the rectangular cavity 5 are provided on the inner wall of the rectangular opening, and nozzles 6 are fixedly installed in the plurality of air outlets, and one end of the nozzle 6 is inclined toward the bottom wall of the slide groove. An air inlet pipe 7 connected to the rectangular cavity 5 is installed on the side wall of the moving block 3, and an air collecting component for collecting air into the rectangular cavity 5 is provided at one end of the air inlet pipe 7, and a strip hole connected to the slide groove is provided on the side of the slide rail 2.

[0026] When the door panel 4 is pushed and pulled, the gas collecting component will continuously collect gas into the rectangular cavity 5. As the gas in the rectangular cavity 5 continues to increase, the gas will enter into multiple air outlet holes and then be sprayed out by multiple nozzles 6. Since one end of the nozzle 6 is inclined toward the bottom wall of the slide groove, when the moving block 3 moves in the slide groove, the gas sprayed from the nozzle 6 will continuously blow the dust in the slide groove. At the same time, the dust will pass through the strip holes and be discharged from the slide groove, which has a cleaning effect on the slide groove, preventing dust from affecting the sliding of the door panel 4 and making it more convenient for the operator to operate.

[0027] The gas collecting assembly includes a gas collecting cylinder 8 fixedly installed at one end of the air inlet pipe 7, a push plate 9 slidably installed in the gas collecting cylinder 8, a circular tube 10 fixedly connected to the gas collecting cylinder 8 and a transmission component for driving the push plate 9 to move up and down. The gas collecting cylinder 8 is connected to the air inlet pipe 7 and the circular tube 10. A first one-way valve that only allows gas to flow from the gas collecting cylinder 8 to the air inlet pipe 7 is installed in the air inlet pipe 7, and a second one-way valve that only allows gas to enter the gas collecting cylinder 8 from the outside is installed in the circular tube 10. A moving hole is opened at the lower end of the gas collecting cylinder 8, and the transmission component includes a push rod 11 slidably installed in the moving hole, a telescopic spring 12 sleeved on the push rod 11 and a strip plate 13 fixedly installed on the side of the door frame 1. One end of the push rod 11 is fixedly connected to the push plate 9, and the two ends of the telescopic spring 12 are respectively fixedly connected to the surface of the push plate 9 and the inner wall of the gas collecting cylinder 8. A plurality of isosceles triangle guide openings of the same shape are equidistantly opened on the strip plate 13, and the end of the push rod 11 away from the push plate 9 slides in the guide opening.

[0028] Under the action of the elastic force of the telescopic spring 12, one end of the push rod 11 will always be in contact with the inner wall of the guide port. When the moving block 3 moves horizontally, it will drive the push rod 11 to move up and down on the strip plate 13. The telescopic spring 12 is compressed, thereby driving the push rod 11 to move up and down in the gas collecting cylinder 8. When the push rod 11 drives the push plate 9 to move upward, the external gas will be sucked into the gas collecting cylinder 8 through the circular tube 10. When the push plate 9 moves vertically downward, the gas in the gas collecting cylinder 8 will be pushed into the air inlet pipe 7, and then into the rectangular cavity 5.

[0029] A rotation groove is provided at one end of the push rod 11, in which a roller 14 is rotatably installed. The roller 14 rolls in contact with the inner wall of the guide opening. When the push rod 11 moves in the guide opening, the roller 14 can reduce the friction between the push rod 11 and the guide opening.

[0030] Two strip-shaped positioning plates 15 are fixedly mounted on the door frame 1, and a plurality of positioning holes are provided on the two positioning plates 15. A mounting block 16 is fixedly mounted on the door panel 4, and a plug hole is provided on the mounting block 16. A positioning rod 17 is inserted into the plug hole. A U-shaped pull rod 18 is fixedly mounted on one end of the positioning rod 17, and one end of the positioning rod 17 is inserted into one of the positioning holes.

[0031] The movement of the door panel 4 can be limited by inserting one end of the positioning rod 17 into the positioning hole provided on the positioning plate 15 to prevent the position of the door panel 4 from being shifted due to the wind. When the door panel 4 needs to be moved, the positioning rod 17 only needs to be pulled out of the positioning hole.

[0032] Mounting rods 20 are fixedly installed at both the front and rear ends of the moving block 3, and a V-shaped scraper 19 is fixedly installed on the mounting rod 20. There is a gap between the scraper 19 and the inner wall of the slide groove. When the moving block 3 moves, the scraper 19 will push the larger particles of dust in the moving direction of the moving block 3 and guide the dust to the strip holes. At the same time, the gas ejected from the nozzle 6 is changed to the direction toward the strip holes under the action of the scraper 19, thereby facilitating the discharge of dust from the strip holes.

[0033] In the utility model, when the door panel 4 is pushed and pulled, the gas collecting component will continuously collect gas into the rectangular cavity 5. As the gas in the rectangular cavity 5 continues to increase, the gas will enter into multiple air outlet holes and then be sprayed out by multiple nozzles 6. The gas sprayed from the nozzles 6 will continuously blow away the dust in the slide groove. At the same time, the dust will pass through the strip holes and be discharged from the slide groove, which will clean the slide groove and prevent the dust from affecting the sliding of the door panel 4, making it more convenient for the operator to operate.

[0034] In general, with respect to the technical problem: when the existing push-pull wind window is working in the mine, the dust in the mine usually falls on the slideway of the door panel 4 in the wind window. When the door panel 4 needs to be pulled to adjust the air volume, the presence of dust will affect the sliding of the door panel 4, which is very inconvenient for manual operation; a technical solution is adopted: through the mutual cooperation of the gas collecting component, the rectangular cavity 5, the air outlet and the multiple nozzles 6, gas is continuously sprayed into the slide groove; because the implementation process of the technical solution is: when the door panel 4 is pushed and pulled, the gas collecting component will continuously collect gas into the rectangular cavity 5. As the gas in the rectangular cavity 5 continues to increase, the gas will enter the multiple air outlets and then be sprayed out by the multiple nozzles 6. The gas sprayed by the nozzle 6 will continuously blow the dust in the slide groove, and at the same time, the dust will pass through the strip holes and be discharged from the slide groove; so the technical problem can definitely be solved, and the technical effect achieved is: the slide groove is cleaned to prevent dust from affecting the sliding of the door panel 4, making it more convenient for the operator to operate.

[0035] 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 sliding windshield in a coal mine, comprising a door frame (1), characterized in that: Two circular slide rails (2) are fixedly mounted on the door frame (1), and the two slide rails (2) are each provided with a circular slide groove, and moving blocks (3) are slidably mounted at both upper and lower ends of the slide groove, and a door panel (4) is fixedly mounted between the two moving blocks (3); Rectangular openings are provided at both the front and rear ends of the moving block (3), and rectangular cavities (5) are provided at both the front and rear ends of the moving block (3). A plurality of air outlets are provided on the inner wall of the rectangular opening, all of which are connected to the rectangular cavities (5). Nozzles (6) are fixedly installed in the plurality of air outlets, and one end of the nozzles (6) is inclined toward the bottom wall of the slide groove. An air intake pipe (7) connected to the rectangular cavity (5) is installed on the side wall of the moving block (3), and one end of the air intake pipe (7) is provided with an air collecting component for collecting air into the rectangular cavity (5). A strip hole connected to the slide groove is provided on the side of the slide rail (2).

2. A push-pull type windshield in underground coal mine according to claim 1, characterized in that: The gas collecting assembly comprises a gas collecting cylinder (8) fixedly mounted at one end of an air intake pipe (7), a push plate (9) slidably mounted in the gas collecting cylinder (8), a circular tube (10) fixedly connected to the gas collecting cylinder (8), and a transmission component for driving the push plate (9) to move up and down. The gas collecting cylinder (8) is connected to the air intake pipe (7) and the circular tube (10). A first one-way valve is installed in the air intake pipe (7) for only allowing gas to flow from the gas collecting cylinder (8) to the air intake pipe (7). A second one-way valve is installed in the circular tube (10) for only allowing gas to enter the gas collecting cylinder (8) from the outside.

3. A push-pull type windshield in underground coal mine according to claim 2, characterized in that: A movable hole is provided at the lower end of the gas collecting cylinder (8), and the transmission component comprises a push rod (11) slidably installed in the movable hole, a telescopic spring (12) sleeved on the push rod (11), and a strip plate (13) fixedly installed on the side of the door frame (1), one end of the push rod (11) is fixedly connected to the push plate (9), and the two ends of the telescopic spring (12) are respectively fixedly connected to the surface of the push plate (9) and the inner wall of the gas collecting cylinder (8), and a plurality of isosceles triangle guide openings of the same shape are equidistantly provided on the strip plate (13), and the end of the push rod (11) away from the push plate (9) slides in the guide opening.

4. The underground coal mine push-pull windshield according to claim 3, characterized in that: A rotation groove is formed at one end of the push rod (11), a roller (14) is rotatably mounted in the rotation groove, and the roller (14) is in rolling contact with the inner wall of the guide opening.

5. The underground coal mine push-pull windshield according to claim 1, characterized in that: Two strip-shaped positioning plates (15) are fixedly mounted on the door frame (1), and a plurality of positioning holes are provided on the two positioning plates (15). A mounting block (16) is fixedly mounted on the door panel (4), and a plug hole is provided on the mounting block (16). A positioning rod (17) is inserted into the plug hole. A U-shaped pull rod (18) is fixedly mounted on one end of the positioning rod (17), and one end of the positioning rod (17) is inserted into one of the positioning holes.

6. The underground coal mine push-pull windshield according to claim 1, characterized in that: Mounting rods (20) are fixedly mounted on both the front and rear ends of the moving block (3), and a V-shaped scraper (19) is fixedly mounted on the mounting rods (20).

Images