Ventilation device for preventing coal mine gas from exceeding limit

Abstract

The utility model relates to the technical field of ventilators, and discloses a ventilation device for preventing coal mine gas from exceeding the limit, which comprises a ventilator shell, a connecting pipe is fixedly connected to the outer wall of the ventilator shell, an air outlet pipe is movably connected to one end of the connecting pipe, a connector is fixedly connected to one end of the air outlet pipe, and the connector is fixedly connected to the other end of the connecting pipe. A second air outlet is formed in one side of the connector, and a sliding rail is movably connected to one side of the connector. According to the ventilation device for preventing the coal mine gas from exceeding the limit, the purpose of stable movement is achieved, the problem that a common movable ventilator for security and protection is unstable in movement is solved, the movable ventilator for security and protection is suitable for the uneven ground, in the moving state, internal abrasion is reduced, use safety is improved, and in the non-moving state, the ventilation device for preventing the coal mine gas from exceeding the limit is achieved. The center of gravity is relatively lower, the structure is stable, and the ventilation device capable of preventing the coal mine gas from exceeding the limit can move stably and is suitable for uneven ground under a mine.

Description

Technical Field

[0001] This utility model relates to the field of ventilation technology, specifically a ventilation device for preventing coal mine gas levels from exceeding limits. Background Technology

[0002] Coal, as a vital energy resource in my country, plays a crucial role in the national economic development. However, coal mining faces numerous safety hazards, among which excessive methane concentration is a major threat to safe coal mine production. Methane is a common combustible gas in coal mines. When methane concentration exceeds safety limits, it can easily trigger serious accidents such as explosions or poisoning, causing not only huge economic losses but also posing a serious threat to the lives of miners.

[0003] To effectively prevent coal mine gas exceedances and ensure safe production, ventilation systems play a crucial role in coal mining. As the core equipment of a coal mine ventilation system, ventilators continuously supply fresh air from the ground to the mine's work areas under mechanical or natural power, thereby diluting and expelling toxic and harmful gases and dust, regulating the mine's climate, and creating a safe and comfortable working environment for miners.

[0004] Currently, various types of ventilation devices for preventing excessive gas levels in coal mines exist on the market. While these devices can meet the basic ventilation needs of coal mines to a certain extent, they still have some shortcomings in practical applications. Due to the complex and harsh working environment underground in coal mines, the ground is usually uneven, making most existing ventilation devices for preventing excessive gas levels highly unstable when moved on such surfaces. This instability not only affects the normal operation of the ventilation device and reduces ventilation efficiency, but may also lead to accelerated wear of internal components, shortening the device's service life. Moreover, unstable ventilation devices may pose safety hazards during movement, threatening the safety of operators.

[0005] Furthermore, some existing ventilation systems have deficiencies in terms of ventilation direction adjustment and safety protection. Inconvenient ventilation direction adjustment leads to poor ventilation, failing to effectively deliver fresh air to the required areas, thus affecting gas dilution and exhaust. Insufficient safety protection may expose operators to injury during use and also hinders the daily maintenance and cleaning of the system.

[0006] In conclusion, existing ventilation devices for preventing coal mine gas exceedances cannot adequately meet the actual needs of safe coal mine production. Therefore, developing a stable, mobile ventilation device with flexible ventilation direction adjustment and good safety protection is of significant practical importance and will play a positive role in improving the level of safe production in coal mines. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this utility model provides a ventilation device for preventing coal mine gas exceedances, which has advantages such as stable movement and solves the problem of unstable movement in general ventilation devices for preventing coal mine gas exceedances.

[0009] (II) Technical Solution

[0010] To achieve the aforementioned purpose of ensuring the stable movement of the ventilation device for preventing coal mine gas exceedances, this utility model provides the following technical solution: A ventilation device for preventing coal mine gas exceedances includes a ventilation fan housing. A connecting pipe is fixedly connected to the outer wall of the ventilation fan housing. One end of the connecting pipe is movably connected to an air outlet pipe. One end of the air outlet pipe is fixedly connected to a connector. A second air outlet is provided on one side of the connector. A sliding rail is movably connected to one side of the connector. A pipe housing is fixedly connected to one side of the sliding rail. A sliding opening is provided on the side of the pipe housing near the sliding rail. A rubber sleeve is fixedly connected to one side of the pipe housing. A support plate is fixedly connected to the inner wall of the pipe housing. A connecting block is movably connected to the surface of the support plate. A motor is fixedly connected to one side of the connecting block. The output shaft of the motor is fixedly connected to a wheel blade via a coupling. A clamping opening is provided on the outer wall of the ventilation fan housing. A clamping head is movably connected to one side of the clamping opening. A protective cover is fixedly connected to one side of the clamping head. A first air outlet is provided on one side of the protective cover.

[0011] Preferably, the air outlet pipe is a corrugated flexible air outlet pipe, and a sealing ring is provided at the connection between the air outlet pipe and the connecting pipe, and the sealing ring is a VITON fluororubber sealing ring.

[0012] Preferably, the outer shell of the pipe has ten fixing holes on the side near the sliding port, and the fixing holes are arranged in groups of five, with the two groups of fixing holes symmetrically arranged with the vertical center line of the sliding track as the axis of symmetry.

[0013] Preferably, there are two rubber sleeves, and the outer walls of both rubber sleeves are provided with anti-slip patterns. The two rubber sleeves are symmetrically arranged with the vertical center line of the pipe shell as the axis of symmetry.

[0014] Preferably, the number of support plates and the number of connecting blocks are both two, and the two support plates and the two connecting blocks are symmetrically arranged with the vertical center line of the motor as the axis of symmetry.

[0015] Preferably, the output shaft of the motor passes through one side of the fan housing and extends into the interior of the fan housing, and an anti-wear ring is provided at the contact point between the output shaft of the motor and the fan housing, and the anti-wear ring is a rubber anti-wear ring.

[0016] Preferably, the number of clamping ports and the number of clamping heads are both six, and the six clamping ports and the six clamping heads are all arranged in a circular distribution around the axis of the first air outlet, and the shape and size of the six clamping ports and the shape and size of the six clamping heads are matched with each other.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a ventilation device to prevent coal mine gas from exceeding the limit, which has the following beneficial effects:

[0019] 1. This ventilation device for preventing coal mine gas exceedances achieves stable movement through the coordinated use of the fan casing, impeller, rubber sleeve, joint, exhaust pipe, support plate, connecting block, motor, and pipe casing. It solves the problem of unstable movement in general security-grade mobile ventilation fans, making them suitable for uneven ground. While moving, it reduces internal wear and increases safety. When stationary, its center of gravity is relatively low, resulting in structural stability. This stable ventilation device for preventing coal mine gas exceedances is suitable for uneven ground in mines.

[0020] 2. This ventilation device for preventing coal mine gas exceedances can achieve multi-directional ventilation through its joints, sliding rails, fixing holes, and second air outlet. This facilitates the use of various air outlet ducts, is suitable for various application scenarios, meets the diverse needs of workers, and reduces operating costs.

[0021] 3. This ventilation device for preventing coal mine gas exceedances achieves safety protection through its protective cover and clamping port, increasing safety during use. Furthermore, the clamping port and clamping head facilitate cleaning, reduce impeller wear, and extend service life. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a front view of the present utility model;

[0024] Figure 3 This is a front view of the connection between the ventilator housing and the protective cover of this utility model;

[0025] Figure 4 This is a top view of the present invention.

[0026] In the diagram: 1. Fan housing; 2. Impeller; 3. Rubber sleeve; 4. Connector; 5. Air outlet duct; 6. Support plate; 7. Connecting block; 8. Motor; 9. First air outlet; 10. Protective cover; 11. Clamping port; 12. Clamping head; 13. Fixing hole; 14. Connecting pipe; 15. Sliding rail; 16. Second air outlet; 17. Duct housing; 18. Sliding port. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figure 1-4A ventilation device for preventing excessive gas levels in coal mines includes a ventilator housing 1. A connecting pipe 14 is fixedly connected to the outer wall of the ventilator housing 1. One end of the connecting pipe 14 is movably connected to an air outlet pipe 5. The air outlet pipe 5 is a corrugated flexible air outlet pipe, and a sealing ring is provided at the connection between the air outlet pipe 5 and the connecting pipe 14. The sealing ring is a VITON fluororubber sealing ring. VITON fluororubber has excellent weather resistance, ozone resistance, and chemical resistance, and is resistant to most oils and solvents. One end of the air outlet pipe 5 is fixedly connected to a connector 4. A second air outlet 16 is opened on one side of the connector 4. A sliding rail 15 is movably connected to one side of the connector 4. A pipe housing 17 is fixedly connected to one side of the sliding rail 15. The pipe housing 17 is close to... A sliding opening 18 is provided on one side of the sliding rail 15. A fixing hole 13 is provided on the side of the duct housing 17 near the sliding opening 18. There are ten fixing holes 13, arranged in groups of five, with two groups of fixing holes 13 symmetrically arranged about the vertical center line of the sliding rail 15. Through the provided connector 4, sliding rail 15, fixing holes 13, and second air outlet 16, multi-directional ventilation can be achieved, facilitating the use of various air outlet ducts. This makes it suitable for various application scenarios, meeting diverse user needs and reducing operating costs. Two rubber sleeves 3 are fixedly connected to one side of the duct housing 17, and both rubber sleeves 3 have anti-slip patterns on their outer walls. The purpose of the textured surface is to prevent slippage, enhance elasticity, and reduce noise. The two rubber sleeves 3 are symmetrically arranged about the vertical centerline of the pipe housing 17. A support plate 6 is fixedly connected to the inner wall of the pipe housing 17, and a connecting block 7 is movably connected to the surface of the support plate 6. A motor 8 is fixedly connected to one side of the connecting block 7. The output shaft of the motor 8 passes through one side of the fan housing 1 and extends into the interior of the fan housing 1. An anti-wear ring is provided at the contact point between the output shaft of the motor 8 and the fan housing 1. The anti-wear ring is made of high-quality rubber, reducing wear and tear and lowering operating costs. There are two support plates 6 and two connecting blocks 7, and both support plates 6 and connecting blocks 7 are symmetrical about the vertical centerline of the motor 8. The fan housing 1 is symmetrically arranged. The output shaft of the motor 8 is fixedly connected to the impeller 2 via a coupling. A clamping opening 11 is provided on the outer wall of the fan housing 1. A clamping head 12 is movably connected to one side of the clamping opening 11. The clamping opening 11 and clamping head 12 facilitate cleaning, reduce impeller wear, and increase service life. A protective cover 10 is fixedly connected to one side of the clamping head 12. The protective cover 10 and clamping opening 11 provide safety protection and increase safety during use. A first air outlet 9 is provided on one side of the protective cover 10. There are six clamping openings 11 and six clamping heads 12, all arranged in a ring around the axis of the first air outlet 9.Furthermore, the shapes and sizes of the six clamping ports 11 and the six clamping heads 12 are mutually matched. Through the coordinated use of the ventilator housing 1, impeller 2, rubber sleeve 3, connector 4, outlet pipe 5, support plate 6, connecting block 7, motor 8, and pipe housing 17, stable movement is achieved, solving the problem of unstable movement of general security-grade mobile ventilators. This makes the security-grade mobile ventilator suitable for uneven ground. In the moving state, internal wear is reduced, increasing safety. In the stationary state, the center of gravity is relatively low, and the structure is stable. This allows the stable, mobile ventilation device for preventing coal mine gas exceedances to be suitable for uneven ground in mines.

[0029] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that provides control.

[0030] When in use, push the pipe housing 17, and rely on the elasticity of the rubber sleeve 3 to make the entire ventilation device for preventing coal mine gas exceedances roll on the ground to reach the required position. Relying on the position setting of the support plate 6, connecting block 7, motor 8 and pipe housing 17, it stays stably. Adjust the connection of the joint 4 and the fixing hole 13 to the required angle. Turn on the power to start the motor 8, drive the wheel blade 2 to rotate, so that the air is drawn into the pipe housing 17 and flows out along the air outlet pipe 5 and connecting pipe 14.

[0031] In summary, this ventilation device for preventing coal mine gas exceedances achieves stable movement, solves the problem of unstable movement of general security mobile ventilation fans, and meets the needs of staff.

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

Claims

1. A ventilation device for preventing excessive methane levels in coal mines, comprising a fan housing (1), characterized in that: A connecting pipe (14) is fixedly connected to the outer wall of the ventilator housing (1). One end of the connecting pipe (14) is movably connected to an air outlet pipe (5). One end of the air outlet pipe (5) is fixedly connected to a connector (4). A second air outlet (16) is provided on one side of the connector (4). A sliding rail (15) is movably connected to one side of the connector (4). A pipe housing (17) is fixedly connected to one side of the sliding rail (15). A sliding opening (18) is provided on the side of the pipe housing (17) near the sliding rail (15). A rubber sheet is fixedly connected to one side of the pipe housing (17). The inner wall of the pipe housing (17) is fixedly connected to a support plate (6), the surface of the support plate (6) is movably connected to a connecting block (7), one side of the connecting block (7) is fixedly connected to a motor (8), the output shaft of the motor (8) is fixedly connected to a wheel blade (2) through a coupling, the outer wall of the fan housing (1) is provided with a clamping port (11), one side of the clamping port (11) is movably connected to a clamping head (12), one side of the clamping head (12) is fixedly connected to a protective cover (10), one side of the protective cover (10) is provided with a first air outlet (9).

2. The ventilation device for preventing excessive gas levels in coal mines according to claim 1, characterized in that: The air outlet pipe (5) is a corrugated flexible air outlet pipe, and a sealing ring is provided at the connection between the air outlet pipe (5) and the connecting pipe (14), and the sealing ring is a VITON fluororubber sealing ring.

3. A ventilation device for preventing excessive gas levels in coal mines according to claim 1, characterized in that: The pipe shell (17) has a fixing hole (13) on the side near the sliding port (18), and there are ten fixing holes (13). Each group of five fixing holes (13) is arranged symmetrically with the vertical center line of the sliding track (15) as the axis of symmetry.

4. A ventilation device for preventing excessive gas levels in coal mines according to claim 1, characterized in that: The number of rubber sleeves (3) is two, and the outer walls of the two rubber sleeves (3) are provided with anti-slip patterns. The two rubber sleeves (3) are symmetrically arranged with the vertical center line of the pipe shell (17) as the axis of symmetry.

5. A ventilation device for preventing excessive gas levels in coal mines according to claim 1, characterized in that: The number of support plates (6) and the number of connecting blocks (7) are both two, and the two support plates (6) and the two connecting blocks (7) are symmetrically arranged with the vertical center line of the motor (8) as the axis of symmetry.

6. A ventilation device for preventing excessive gas levels in coal mines according to claim 1, characterized in that: The output shaft of the motor (8) passes through one side of the fan housing (1) and extends into the interior of the fan housing (1). A wear-resistant ring is provided at the contact point between the output shaft of the motor (8) and the fan housing (1), and the wear-resistant ring is a rubber wear-resistant ring.

7. A ventilation device for preventing excessive gas levels in coal mines according to claim 1, characterized in that: The number of clamping ports (11) and the number of clamping heads (12) are both six. The six clamping ports (11) and the six clamping heads (12) are arranged around the axis of the first air outlet (9) as the base point. The shape and size of the six clamping ports (11) and the shape and size of the six clamping heads (12) are matched with each other.

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