Mining ventilation control device

Abstract

The utility model relates to the technical field of mine ventilation, in particular to a mine ventilation control device. A second shell is arranged on one side of the first shell, a push-pull assembly is arranged in an inner cavity of the first shell, a rotating assembly is arranged in an inner cavity of the second shell, the push-pull assembly comprises an air cylinder embedded in the first shell, a push shaft of the air cylinder is fixedly connected with a telescopic rod, and a sliding block is welded to the end, away from the air cylinder, of the telescopic rod; the sliding blocks and the telescopic rods are connected with the grooves in a clamped mode, notches are formed in the sliding blocks, baffles are hinged to the upper sides of the sliding blocks, the baffles are located over the notches, connecting rings are connected between the multiple sliding blocks, and the connecting rings are embedded in the multiple sliding blocks. By means of the push-pull assembly, when the main ventilator is overhauled, the sliding block is driven to block the fan which continues to rotate due to inertia, so that the fan stops rapidly, workers overhaul the main ventilator, the contact time of the workers and harmful gas is shortened, and the safety of the workers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation control, in particular to a ventilation control device for mines. Background Art

[0002] The explosion-proof extraction main ventilation fan for coal mines is an important part of the mine ventilation system and the basic guarantee for safe production in mines. Generally, two main ventilation fans (one in operation and one in standby) are arranged in mines to meet the safety of mine production, and the two main ventilation fans are switched once a month for maintenance, and the switching time does not exceed 10 minutes. When the main ventilation fan is switched, the impeller will continue to stop for a long time under the action of the inertial rotation force, so in order to shorten the switching time, the fan manufacturer will set a braking device on the main part of the main ventilation fan to shorten the switching time. All the main ventilation fans currently use manual braking devices, that is, after the main ventilation fan is powered off, the handbrake is repeatedly pulled and released manually to achieve braking. Because of the huge inertia of the impeller, it is very difficult for workers to pull the handbrake, and it requires great strength. In addition, the main ventilation leads to the coal mine, and a large amount of dust and harmful gases will be discharged, which will also cause damage to the workers' bodies. In view of this, a mine ventilation control device is proposed. Summary of the invention

[0003] The purpose of the utility model is to provide a mine ventilation control device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides a mining ventilation control device, including a first shell, a second shell is provided on one side of the first shell, the first shell and the second shell are in contact with relative side walls, pillars supporting the first shell and the second shell are installed on the lower sides of the first shell and the second shell, the inner cavity of the first shell is provided with a push-pull assembly, the inner cavity of the second shell is provided with a rotating assembly, the push-pull assembly includes a cylinder embedded in the first shell, the inner side wall of the first shell is evenly provided with a plurality of grooves, the push shaft of the cylinder is fixedly connected to the telescopic rod, a slider is welded to the end of the telescopic rod away from the cylinder, and the slider and the telescopic rod are clamped with the groove, the slider is provided with a notch, the upper side of the slider is hinged with a baffle, a plurality of the sliders are connected with a connecting ring, and the connecting ring is embedded in the plurality of sliders.

[0005] As a further improvement of the present technical solution, the rotating assembly includes a support block fixedly connected to the inner wall of the second shell, a motor is fixedly connected to the upper side of the support block, a rotating rod is welded to the output shaft of the motor, a bracket is provided on the lower side of the rotating rod, an arc groove is opened on the upper side of the bracket, the rotating rod is clamped in the arc groove, and a fan is fixedly connected to one end of the rotating rod close to the first shell.

[0006] As a further improvement of the technical solution, a controller for controlling the push-pull assembly is fixedly mounted on one side of the support column on the lower side of the first shell, and a protective film is installed on the outer side wall of the controller.

[0007] As a further improvement of the technical solution, one end of the first shell away from the second shell has a leakage net connected by bolts.

[0008] As a further improvement of the technical solution, outer side walls of the first shell and the second shell opposite to each other are fixedly connected with circular rings, and the two circular rings are hinged by bolts.

[0009] As a further improvement of the technical solution, the baffle is located directly above the notch, and springs are welded on both sides of the bottom of the baffle, and the ends of the two springs away from the baffle are welded to the bottom of the notch of the slider.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] In the mine ventilation control device, a push-pull assembly is provided, which drives the slider to block the fan that continues to rotate due to inertia when the main fan is being repaired, so that the fan stops quickly and workers can repair the main fan. This saves workers from repeatedly pulling the handbrake, reduces the contact time between workers and harmful gases, and improves workers' safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of a half-section view of the overall structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the push-pull assembly structure of the utility model;

[0015] Figure 4 It is a schematic diagram of the structure of the rotating assembly of the utility model.

[0016] The meaning of each number in the figure is:

[0017] 1. First shell; 2. Second shell; 3. Pillar; 4. Leakage net; 5. Controller;

[0018] 6. Push-pull assembly; 61. Cylinder; 62. Telescopic rod; 63. Slider; 64. Baffle; 65. Connecting ring;

[0019] 7. Rotating assembly; 71. Support block; 711. Bracket; 72. Motor; 73. Rotating rod; 74. Fan;

[0020] 8. Ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention. Example

[0023] See also Figure 1-Figure 4 As shown, the present embodiment provides a mining ventilation control device, including a first shell 1, a second shell 2 is provided on one side of the first shell 1, the first shell 1 and the second shell 2 are in contact with opposite side walls, a plurality of groups of gas monitoring sensors are embedded inside the first shell 1 and the second shell 2, the outer side walls of the opposite side walls of the first shell 1 and the second shell 2 are fixedly connected with a ring 8, the two rings 8 are connected by bolts, the first shell 1 and the second shell 2 connected by bolts are easy to disassemble, and also easy to repair and replace damaged parts of the first shell 1 and the second shell 2, the lower sides of the first shell 1 and the second shell 2 are both installed with pillars 3 supporting the first shell 1 and the second shell 2, the pillars 3 fix the positions of the first shell 1 and the second shell 2, so that the first shell 1 and the second shell 2 are not easy to tip over, a push-pull component 6 is provided in the inner cavity of the first shell 1, and a rotating component 7 is provided in the inner cavity of the second shell 2.

[0024] The push-pull assembly 6 includes a cylinder 61 embedded in the first shell 1. The inner wall of the first shell 1 is evenly provided with a plurality of grooves. The driving shaft of the cylinder 61 is fixedly connected to the telescopic rod 62. When the rotating assembly 7 stops, the cylinder 61 pulls the telescopic rod 62 to shrink the telescopic rod 62 toward the second shell 2. A slider 63 is welded to the end of the telescopic rod 62 away from the cylinder 61, and the slider 63 and the telescopic rod 62 are engaged with the groove. When the piston rod of the telescopic rod 62 extends outward, the slider 63 is driven to move together, and the groove can keep the slider 63 stable during the movement. The slider 63 is provided with a slot, and a baffle 64 is hinged on the upper side of the slider 63. The baffle 64 reaches the bottom of the rotating assembly 7 under the guidance of the slider 63 and blocks the rotating assembly 7. A connecting ring 65 is connected between the multiple sliders 63, and the connecting ring 65 is embedded in the multiple sliders 63. The connecting ring 65 drives the multiple sliders 63 to translate together, so that the multiple baffles 64 jointly block the rotating assembly 7 that continues to rotate due to inertia, forcing it to stop quickly, reducing the contact time between the maintenance workers and the exhausted harmful gases, and also saving the workers' effort of repeatedly pulling the handbrake.

[0025] The rotating assembly 7 includes a support block 71 fixedly connected to the inner wall of the second shell 2, and a motor 72 is fixedly connected to the upper side of the support block 71. The support block 71 fixes the position of the motor 72 to keep it stable during operation. A rotating rod 73 is welded to the output shaft of the motor 72, and the motor 72 drives the rotating rod 73 to rotate. A bracket 711 is provided on the lower side of the rotating rod 73, and an arc groove is provided on the upper side of the bracket 711. The rotating rod 73 is clamped with the arc groove. The bracket 711 gives support force to the rotating rod 73 so that the rotating rod 73 will not fall. The arc groove is clamped with the rotating rod 73 so that the rotating rod 73 can rotate normally. A fan 74 is fixedly connected to the end of the rotating rod 73 close to the first shell 1. The motor 72 drives the rotating rod 73 to operate, thereby causing the fan 74 to start rotating, so that it can extract harmful gases from the coal mine.

[0026] A controller 5 for controlling the push-pull assembly 6 is fixedly installed on one side of the support 3 on the lower side of the first shell 1, and a protective film is installed on the outer wall of the controller 5. On the one hand, when the gas in the first shell 1 and the second shell 2 exceeds the standard, it will be transmitted to the main control panel through the controller 5. On the other hand, during maintenance, the push-pull assembly 6 can be started to block the fan 74 and stop it. The protective film prevents harmful gases from corroding the controller 5.

[0027] One end of the first shell 1 away from the second shell 2 is provided with a leakage net 4 connected by bolts. The leakage net 4 blocks some small stones to prevent the small stones from entering and causing damage to other parts. The first shell 1 is bolted to the leakage net 4, which can be easily disassembled and the leakage net 4 can be cleaned.

[0028] The baffle 64 is located directly above the slot, and springs are welded on both sides of the bottom of the baffle 64. The ends of the two springs away from the baffle 64 are welded to the bottom of the slot of the slider 63. When the baffle 64 is translated to the lower side of the fan 74, the blades of the fan 74 continue to rotate at a high speed due to the huge inertia, causing the baffle 64 to tilt to one side. At this time, the spring at the bottom of the baffle 64 will push the baffle 64 back to its original position quickly to continue blocking the fan 74.

[0029] When the mining ventilation control device of this embodiment is used, the push-pull assembly 6 is provided to drive the slider 63 to block the fan 74 that continues to rotate due to inertia when the main ventilation fan is being repaired, so that the fan 74 stops quickly, allowing workers to repair the main ventilation fan, eliminating the step of workers repeatedly pulling the handbrake, reducing the contact time between workers and harmful gases, and improving workers' safety.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A mine ventilation control device, comprising a first housing (1), characterized in that: A second shell (2) is provided on one side of the first shell (1); the first shell (1) and the second shell (2) are in contact with each other at opposite side walls; pillars (3) for supporting the first shell (1) and the second shell (2) are installed on the lower sides of the first shell (1) and the second shell (2); a push-pull assembly (6) is provided in the inner cavity of the first shell (1); a rotating assembly (7) is provided in the inner cavity of the second shell (2); the push-pull assembly (6) comprises a cylinder (61) embedded in the first shell (1); The inner wall of the body (1) is evenly provided with a plurality of grooves, the driving shaft of the cylinder (61) is fixedly connected to the telescopic rod (62), a slider (63) is welded to one end of the telescopic rod (62) away from the cylinder (61), and the slider (63) and the telescopic rod (62) are engaged with the groove, the slider (63) is provided with a notch, a baffle (64) is hingedly connected to the upper side of the slider (63), a connecting ring (65) is connected between the plurality of sliders (63), and the connecting ring (65) is embedded in the plurality of sliders (63).

2. The mine ventilation control device according to claim 1, characterized in that: The rotating assembly (7) comprises a support block (71) fixedly connected to the inner wall of the second shell (2); a motor (72) is fixedly connected to the upper side of the support block (71); a rotating rod (73) is welded to the output shaft of the motor (72); a bracket (711) is provided on the lower side of the rotating rod (73); an arc groove is provided on the upper side of the bracket (711); the rotating rod (73) is engaged with the arc groove; and a fan (74) is fixedly connected to one end of the rotating rod (73) close to the first shell (1).

3. The mine ventilation control device according to claim 1, characterized in that: A controller (5) for controlling the push-pull assembly (6) is fixedly mounted on one side of the support (3) at the lower side of the first shell (1), and a protective film is mounted on the outer side wall of the controller (5).

4. The mine ventilation control device according to claim 1, characterized in that: An end of the first shell (1) away from the second shell (2) is provided with a leakage net (4) connected by bolts.

5. The mine ventilation control device according to claim 1, characterized in that: The outer side walls of the first shell (1) and the second shell (2) opposite side walls are both fixedly connected with a circular ring (8), and the two circular rings (8) are connected by bolts.

6. The mine ventilation control device according to claim 1, characterized in that: The baffle (64) is located directly above the notch, and springs are welded to both sides of the bottom of the baffle (64), and one end of the two springs away from the baffle (64) is welded to the bottom of the notch of the slider (63).

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