Adjusting device for coal mine air window
By employing a sliding shaft structure connecting cylinders and fixed blocks in the coal mine ventilation window, coupled with an elastic cover for protection, the problem of dust causing the wind deflector to jam has been solved, enabling the ventilation window to close and open quickly, thus improving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINAN COAL MINE OF HENAN DAYOU ENERGY CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-05-19
AI Technical Summary
Existing coal mine ventilation windows are prone to getting stuck in the dusty underground environment due to dust accumulation, which affects the ventilation effect and reduces safety.
The slide shaft structure, which connects a cylinder and a fixed block, is rotatably connected to the wind deflector via a connector. A cylindrical elastic cover protects the cylinder and slide shaft, preventing dust from adhering and ensuring the smooth movement of the wind deflector.
It effectively avoids the impact of dust, ensures that the ventilation window can be closed quickly in case of an emergency, protects the safety of personnel underground, and improves the ventilation effect.
Smart Images
Figure CN224260383U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reverse-adjustment ventilation window technology in coal mines, specifically an adjustment device for ventilation windows in coal mines. Background Technology
[0002] In coal mine ventilation systems, air vents can change airflow direction, regulate air volume distribution, and enable rapid reversal of airflow in emergencies such as fires and gas outbursts, ensuring the safety of underground personnel. Current technology combines guide rails (e.g., aluminum SBR cylindrical optical axis guide rails), baffles, and air vents. In the event of an emergency, the baffle, impacted, slides along the guide rail towards the air vent until it closes, achieving reversal of airflow. However, due to the high levels of dust underground, over long-term use, dust accumulates on the guide rails, causing the air vent to jam when closed, thus reducing the reversal effect. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides an adjustment device for ventilation windows in coal mines, preventing the wind deflector from failing to close the ventilation window smoothly due to dust.
[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an adjustment device for a coal mine ventilation window, including a pad, a cylinder and a fixed block are provided on the pad, the piston of the cylinder is coaxially fixedly connected to a sliding shaft that slides through the fixed block, and after the sliding shaft slides through the fixed block, it is rotatably connected to a baffle plate through a connector. When the piston of the cylinder drives the sliding shaft to move, the baffle plate moves synchronously and closes or opens the ventilation window. A cylindrical first elastic cover is connected between the cylinder and the fixed block. The first end of the first elastic cover is sleeved on the cylinder and fixedly connected to the cylinder. The second end of the first elastic cover is sleeved on the fixed block and fixedly connected to the fixed block. A cylindrical second elastic cover is connected between the part of the sliding shaft that extends out of the fixed block and the fixed block. The first end of the second elastic cover is sleeved on the part of the sliding shaft that extends out of the fixed block and fixedly connected to the part of the sliding shaft that extends out of the fixed block. The second end of the second elastic cover is sleeved on the fixed block and fixedly connected to the fixed block.
[0005] As a further optimization of the adjustment device for a coal mine ventilation window of the utility model: the first end of the first elastic cover and the cylinder and the second end of the first elastic cover and the fixing block are both fixed by the first metal wire.
[0006] As a further optimization of the adjustment device for a coal mine ventilation window, the first section of the second elastic cover and the part of the sliding shaft extending out of the fixing block, as well as the second end of the second elastic cover and the fixing block, are both fixed by binding with a second metal wire.
[0007] As a further optimization of the adjustment device for a coal mine ventilation window of the utility model: the connecting member includes two clamping plates, a connecting strip is fixedly provided on the wind baffle plate, the connecting strip extends between the two clamping plates and is rotatably connected to the two clamping plates, and the sliding shaft extends out of the fixed block and extends between the two clamping plates and is rotatably connected to the two clamping plates.
[0008] As a further optimization of the adjustment device for a coal mine ventilation window of the utility model: a mounting plate is connected to the wind deflector, and the mounting plate and the clamping plate are connected by a spring.
[0009] As a further optimization of the adjustment device for a coal mine ventilation window of the utility model: the fixed block is provided with a through hole for the sliding shaft to pass through, the inner wall of the through hole is provided with a number of guide rods, and the sliding shaft is provided with guide grooves that correspond to the guide rods one by one.
[0010] As a further optimization of the adjustment device for a coal mine ventilation window of the utility model: an anti-detachment ring is sleeved on the sliding shaft.
[0011] As a further optimization of the adjustment device for a coal mine ventilation window of the utility model: the fixed block is provided with a filling port for adding grease, and the filling port extends through the through hole.
[0012] As a further optimization of the adjustment device for a coal mine ventilation window according to the utility model: the adjustment device includes an installation cylinder communicating with the ventilation window, the pad is fixedly installed on the inner wall of the installation cylinder, and part of the pad extends into the ventilation window.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1) This utility model sets a cylinder and a fixed block on a pad. The piston of the cylinder is coaxially fixedly connected to a sliding shaft that slides through the fixed block. After the sliding shaft slides through the fixed block, it is rotatably connected to a baffle plate through a connector. When the piston of the cylinder drives the sliding shaft to move, the baffle plate moves synchronously and closes or opens the wind window. In case of an emergency, the window can be quickly closed to protect the safety of personnel underground.
[0015] 2) This utility model connects a cylindrical first elastic cover between the cylinder and the fixed block. The first end of the first elastic cover is sleeved on the cylinder and fixedly connected to the cylinder, and the second end of the first elastic cover is sleeved on the fixed block and fixedly connected to the fixed block. A cylindrical second elastic cover is connected between the part of the sliding shaft extending out of the fixed block and the fixed block. The first end of the second elastic cover is sleeved on the part of the sliding shaft extending out of the fixed block and fixedly connected to the part of the sliding shaft extending out of the fixed block, and the second end of the second elastic cover is sleeved on the fixed block and fixedly connected to the fixed block. This ensures that dust in the well will not fall on the piston of the cylinder and the part of the sliding shaft that enters the fixed block, thus preventing the piston of the cylinder and the sliding shaft from being affected when moving, which would prevent the ventilation window from being closed or opened quickly. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a sectional view of the fixed block and the sliding shaft mating.
[0018] Figure 3 This is a schematic diagram showing the fit between the connector, connecting strip, and sliding shaft;
[0019] Figure 4 This is a diagram illustrating how the windshield closes the windshield.
[0020] The markings in the diagram are: 1. Windshield, 2. Wind deflector, 3. Fixing block, 4. Sliding shaft, 5. Anti-detachment ring, 6. First elastic cover, 7. Cylinder, 8. Pad, 9. First connecting rod, 10. Connecting strip, 11. Spring, 12. Mounting plate, 13. Second elastic cover, 14. Clamping plate, 15. First metal wire, 16. Second metal wire, 17. Mounting cylinder, 18. Through hole, 19. Guide rod, 20. Filling port, 21. Second connecting rod. Detailed Implementation
[0021] The technical solution of this utility model will be further described in detail below with reference to specific embodiments. Parts not described or disclosed in detail in the following embodiments of this utility model should be understood as prior art known or should be known by those skilled in the art, such as the structure of the windshield 1, the material of the windshield 2, the material of the first elastic cover 6 and the second elastic cover 13, the model of the cylinder 7, and the model of the spring 11, etc.
[0022] Example 1
[0023] A regulating device for ventilation windows in coal mines, such as Figures 1 to 4As shown, the device includes a pad 8, on which a cylinder 7 and a fixing block 3 are mounted. The piston of the cylinder 7 is coaxially and fixedly connected to a sliding shaft 4 that slides through the fixing block 3. After sliding through the fixing block 3, the sliding shaft 4 is rotatably connected to a baffle plate 2 via a connector. When the piston of the cylinder 7 drives the sliding shaft 4 to move, the baffle plate 2 moves synchronously and closes or opens the windshield 1. A cylindrical first elastic cover 6 is connected between the cylinder 7 and the fixing block 3. The first end of the first elastic cover 6 is fitted onto the cylinder 7 and fixedly connected to the cylinder 7. The second end of the first elastic cover 6 is fitted onto the fixing block 3 and fixedly connected to the fixing block 3. A cylindrical second elastic cover 13 is connected between the portion of the sliding shaft 4 extending out of the fixing block 3 and the fixing block 3. The first end of the second elastic cover 13 is fitted onto the portion of the sliding shaft 4 extending out of the fixing block 3 and fixedly connected to the portion of the sliding shaft 4 extending out of the fixing block 3. The second end of the second elastic cover 13 is fitted onto the fixing block 3 and fixedly connected to the fixing block 3.
[0024] Under normal conditions, the piston of cylinder 7 extends; during the extension of the piston, it drives the sliding shaft 4 to move outward from the windshield 1; during the movement of the sliding shaft 4, it drives the wind deflector 2 to move away from the windshield 1 until the windshield 1 is opened. In case of an emergency, the piston of cylinder 7 retracts; during the retraction of the piston, it drives the sliding shaft 4 to move inward from the windshield 1; during the movement of the sliding shaft 4, it drives the wind deflector 2 to move towards the windshield 1 until the windshield is closed. Since the sliding shaft 4 is rotatably connected to the wind deflector 2 through a connector, when the wind deflector 2 opens the windshield 1, the wind deflector 2 will be in an inclined state, and there will be a larger ventilation space between one edge of the wind deflector 2 and the windshield 1, which can reduce the obstruction of airflow; when the wind deflector 2 needs to close the windshield 1, one side of the wind deflector 2 will first contact the outer edge of the windshield 1, and as the piston of cylinder 7 continues to move inward from the windshield 1, the sliding shaft 4 will continue to pull the wind deflector 2 towards the windshield 1, so that it fits tightly against and closes the windshield 1.
[0025] Due to the large amount of dust underground, in order to prevent dust from adhering to the piston of cylinder 7, a cylindrical first elastic cover 6 is connected between cylinder 7 and fixed block 3. The first end of the first elastic cover 6 is sleeved on cylinder 7 and fixedly connected to cylinder 7, and the second end of the first elastic cover 6 is sleeved on fixed block 3 and fixedly connected to fixed block 3. This ensures that dust only adheres to the surface of the first elastic cover 6, protecting the piston of cylinder 7 and preventing it from affecting the movement of the piston of cylinder 7, so that the wind deflector 2 can smoothly open or close the windshield 1. To prevent dust from adhering to the part of the sliding shaft 4 that extends out of the fixing block 3, a cylindrical second elastic cover 13 is connected between the part of the sliding shaft 4 that extends out of the fixing block 3 and the fixing block 3. The first end of the second elastic cover 13 is fitted onto the part of the sliding shaft 4 that extends out of the fixing block 3 and is fixedly connected to the part of the sliding shaft 4 that extends out of the fixing block 3. The second end of the second elastic cover 13 is fitted onto the fixing block 3 and is fixedly connected to the fixing block 3. This ensures that dust will not fall onto the sliding shaft 4 that enters the fixing block 3. The dust only adheres to the surface of the second elastic cover 13, which can protect the sliding shaft 4 and prevent it from getting stuck or jammed when it moves. This further ensures that the wind deflector 2 can smoothly open or close the windshield 1.
[0026] Furthermore, the first elastic cover 6 and the second elastic cover 13 possess a certain degree of elasticity, ensuring that they will not be damaged during the extension and retraction of the piston in the cylinder 7 or the movement of the sliding shaft 4. Simultaneously, the first elastic cover 6 and the second elastic cover 13 will not interfere with the extension and retraction of the piston in the cylinder 7 or the movement of the sliding shaft 4. To illustrate the internal structure of the first elastic cover 6 and the second elastic cover 13, in Figure 1 The first elastic shield 6 and the second elastic shield 13 can be made of rubber.
[0027] The above are the basic embodiments of this utility model. Further improvements, optimizations, and limitations can be made based on the above to obtain the following embodiments:
[0028] Example 2
[0029] This embodiment is an improvement on Embodiment 1. Its main structure is the same as Embodiment 1, but the improvement lies in the following: the first end of the first elastic cover 6 is fixed to the cylinder 7, and the second end of the first elastic cover 6 is fixed to the fixing block 3 by a first metal wire 15. Fixing the first and second ends of the first elastic cover 6 by the first metal wire 15 is simple and easy.
[0030] The first section of the second elastic cover 13 and the part of the slide shaft 4 extending out of the fixing block 3, as well as the second end of the second elastic cover 13 and the fixing block 3, are all bound and fixed by the second metal wire 16.
[0031] The first and second ends of the second elastic cover 13 are tied and fixed by the second metal wire 16, which is simple and easy to do.
[0032] Example 3
[0033] This embodiment is an improvement on embodiment 1. Its main structure is the same as that of embodiment 1. The improvement is that the connector includes two clamping plates 14. A connecting strip 10 is fixedly provided on the wind baffle 2. The connecting strip 10 extends between the two clamping plates 14 and is rotatably connected to the two clamping plates 14. The sliding shaft 4 extends out of the fixing block 3 and extends between the two clamping plates 14 and is rotatably connected to the two clamping plates 14.
[0034] Two clamping plates 14 are rotatably connected by a first connecting rod 9 and a second connecting rod 21. The first connecting rod 9 is close to the connecting strip 10, and the second connecting rod 21 is close to the sliding shaft 4. The connecting strip 10 extends between the two clamping plates 14, and the first connecting rod 9 moves through the connecting strip 10. The sliding shaft 4 extends between the two clamping plates 14, and the second connecting rod 21 moves through the sliding shaft 4. During the process of the piston of the cylinder 7 extending outward towards the windshield 1 and driving the sliding shaft 4 to move outward synchronously, the clamping plate 14 will first rotate around the second connecting rod 21 to a certain extent. Then, as the sliding shaft 4 continues to move outward, the clamping plate 14 will rotate around the first connecting rod 9 to a certain extent, and then push the connecting strip 10 and the windshield 2 to move outward.
[0035] Example 4
[0036] This embodiment is an improvement on embodiment 3. Its main structure is the same as that of embodiment 3. The improvement is that: a mounting plate 12 is connected to the wind deflector 2, and the mounting plate 12 and the clamping plate 14 are connected by a spring 11.
[0037] Since the sliding shaft 4 slides through the fixed block 3 and is rotatably connected to the wind deflector 2 through the connector, the bottom of the wind deflector 2 will be close to the windshield 1 due to its own weight. The mounting plate 12 and the clamping plate 14 are connected by a spring 11, which can ensure that when the wind deflector 2 opens the windshield 1, the top of the wind deflector 2 is tilted towards the windshield 1, and this tilt angle can block some of the falling dust, preventing it from falling directly on the spring 11, the mounting plate 12, the connector and part of the second elastic cover 13.
[0038] Example 5
[0039] This embodiment is an improvement on Embodiment 1. Its main structure is the same as Embodiment 1, but the improvement lies in the following: A through hole 18 is provided inside the fixing block 3 for the sliding shaft 4 to pass through. Several guide rods 19 are provided on the inner wall of the through hole 18. Guide grooves are provided on the sliding shaft 4, corresponding to the guide rods 19 one-to-one. During the movement of the sliding shaft 4, the guide rods 19 can move within the guide grooves, guiding the movement of the sliding shaft 4. An anti-detachment ring 5 is fitted onto the sliding shaft 4. When the anti-detachment ring 5 contacts the fixing block 3, it prevents the sliding shaft 4 from continuing to extend outwards from the windshield 1.
[0040] Example 6
[0041] This embodiment is an improvement on embodiment 5. Its main structure is the same as embodiment 5, but the improvement lies in the following: a grease inlet 20 is provided on the fixing block 3, extending through the through hole 18. The grease lubricates the sliding shaft 4 and the inner wall of the through hole 18, further preventing jamming or stuckness during the movement of the sliding shaft 4.
[0042] Example 7
[0043] This embodiment is an improvement on Embodiment 1. Its main structure is the same as Embodiment 1, but the improvement lies in that the adjusting device includes a mounting cylinder 17 connected to the windshield 1. The pad 8 is fixedly installed on the inner wall of the mounting cylinder 17, and a portion of the pad 8 extends into the windshield 1. The connection between the mounting cylinder 17 and the windshield 1 facilitates the installation of the pad 8 and the cylinder 7.
[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A regulating device for a coal mine ventilation window, characterised in that: The system includes a pad (8), on which a cylinder (7) and a fixing block (3) are mounted. The piston of the cylinder (7) is coaxially fixedly connected to a sliding shaft (4) that slides through the fixing block (3). After the sliding shaft (4) slides through the fixing block (3), it is rotatably connected to a baffle plate (2) via a connector. When the piston of the cylinder (7) drives the sliding shaft (4) to move, the baffle plate (2) moves synchronously and closes or opens the windshield (1). A cylindrical first elastic cover (6) is connected between the cylinder (7) and the fixing block (3). The first end of the first elastic cover (6) is sleeved on the cylinder (7). The first elastic cover (6) is fixedly connected to the cylinder (7), and the second end of the first elastic cover (6) is fitted onto the fixed block (3) and fixedly connected to the fixed block (3). A cylindrical second elastic cover (13) is connected between the part of the sliding shaft (4) that extends out of the fixed block (3) and the fixed block (3). The first end of the second elastic cover (13) is fitted onto the part of the sliding shaft (4) that extends out of the fixed block (3) and fixedly connected to the part of the sliding shaft (4) that extends out of the fixed block (3). The second end of the second elastic cover (13) is fitted onto the fixed block (3) and fixedly connected to the fixed block (3).
2. The regulating device for coal mine ventilation window according to claim 1, characterized in that: The first end of the first elastic cover (6) is fixed to the cylinder (7) and the second end of the first elastic cover (6) is fixed to the fixing block (3) by the first metal wire (15).
3. The regulating device for coal mine ventilation window according to claim 1, characterized in that: The first section of the second elastic cover (13) and the part of the slide shaft (4) extending out of the fixing block (3) are both bound and fixed by the second metal wire (16).
4. The conditioning device for a coal mine ventilation window of claim 1, wherein: The connector includes two clamping plates (14), and a connecting strip (10) is fixedly provided on the wind deflector (2). The connecting strip (10) extends between the two clamping plates (14) and is rotatably connected to the two clamping plates (14). The sliding shaft (4) extends out of the fixing block (3) and then extends between the two clamping plates (14) and is rotatably connected to the two clamping plates (14).
5. The regulating device for coal mine ventilation window according to claim 4, characterized in that: The wind deflector (2) is connected to an mounting plate (12), and the mounting plate (12) and the clamping plate (14) are connected by a spring (11).
6. The conditioning device for a coal mine ventilation window of claim 1, wherein: The fixed block (3) is provided with a through hole (18) for the sliding shaft (4) to pass through. The inner wall of the through hole (18) is provided with a number of guide rods (19). The sliding shaft (4) is provided with guide grooves that correspond to the guide rods (19) one by one.
7. The regulating device for coal mine ventilation window according to claim 6, characterized in that: An anti-detachment ring (5) is fitted onto the slide shaft (4).
8. The regulating device for coal mine ventilation window according to claim 6, characterized in that: The fixing block (3) is provided with a filling port (20) for adding grease, and the filling port (20) extends through the through hole (18).
9. The conditioning device for a coal mine ventilation window of claim 1, wherein: The adjustment device includes an installation cylinder (17) communicating with the windshield (1), and the pad (8) is fixedly installed on the inner wall of the installation cylinder (17), with part of the pad (8) extending into the windshield (1).