Ventilation device for coal mine gas prevention and control

Abstract

The utility model provides a ventilation device for coal mine gas control, which relates to the technical field of ventilation devices and comprises a ventilation device shell, a support frame is fixedly connected to the inner wall of the ventilation device shell, a motor is fixedly connected to one side of the support frame, and a rotating fan is fixedly connected to the output end of the motor. A limiting device is arranged on the side, close to the motor, of the ventilation device shell, a connecting device is arranged on one side of the rotating fan, the limiting device comprises a filter screen, and when the limiting device is used, activated carbon is manually and evenly arranged between a filter frame and the filter screen; a first spring extrudes a clamping strip in a direction far away from a storage groove, so that the clamping strip can be arranged on one side, far away from a filter screen, of a filter frame, the filter frame can be well limited on one side of the filter screen, activated carbon cannot influence ventilation, and in this way, when ventilation is carried out, the ventilation effect is improved; the activated carbon can adsorb gas in the air.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation devices, in particular to a ventilation device for preventing and controlling coal mine gas. Background Art

[0002] A ventilation device is a device used to prevent and control gas during coal mining. When using the ventilation device, it is set at the ventilation port, and then the motor drives the rotary fan to rotate. In this way, the gas generated during the working process inside the coal mine can be transported to the external environment, which can avoid the risk of gas explosion inside the coal mine to a certain extent.

[0003] In daily work, the inventors found that the ventilation device still has at least the following problems: when using the ventilation device, the ventilation device is set at the ventilation port, and then the rotary fan is driven by the motor to rotate, so that the gas generated during the working process inside the coal mine can be transported to the external environment. This can avoid the risk of gas explosion inside the coal mine to a certain extent. However, in actual use, because the gas generated by mining inside the coal mine is directly passed directly to the external environment, it may pollute the environment to a certain extent. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a ventilation device for preventing and controlling coal mine gas.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a ventilation device for preventing and controlling coal mine gas, comprising a ventilation device shell, an inner wall of the ventilation device shell is fixedly connected to a support frame, one side of the support frame is fixedly connected to a motor, an output end of the motor is fixedly connected to a rotating fan, a limiting device is provided on a side of the ventilation device shell close to the motor, a connecting device is provided on one side of the rotating fan, the limiting device includes a filter screen, the filter screen is fixedly connected to the inner wall of the ventilation device shell close to the motor side, and the filter screen is provided on a side away from the ventilation device shell. A filter frame, the filter frame is slidingly connected to the inner wall of the ventilation device housing, a storage groove is provided on the side of the ventilation device housing close to the motor, the inner wall of the storage groove is slidingly connected to a locking strip, the locking strip is arranged on the side of the filter frame away from the ventilation device housing, one side of the inner wall of the storage groove is fixedly connected to a first damping rod, the bottom of the first damping rod is fixedly connected to one side of the locking strip, the surface of the first damping rod is sleeved with a first spring, one end of the first spring is fixedly connected to one side of the inner wall of the storage groove, and the end of the first spring close to the first damping rod is fixedly connected to one side of the locking strip.

[0006] The effect achieved by the above components is: when using the limiting device, the activated carbon is manually and evenly placed in the middle of the filter frame and the filter mesh, and then the first spring is used to squeeze the positioning bar in the direction away from the storage slot, so that the positioning bar can be set on the side of the filter frame away from the filter mesh, and then the filter frame can be well restricted to one side of the filter mesh, and the activated carbon will not affect the ventilation. In this way, when ventilation is carried out, the activated carbon can well adsorb the gas in the air, which can to a certain extent prevent the gas from being directly discharged into the outside air.

[0007] Preferably, the inner wall of the filter frame is evenly and fixedly connected with positioning rods, and the positioning rods are arranged on a side of the filter screen away from the motor.

[0008] The effect achieved by the above components is that the positioning rod is set in the middle of the filter screen and the filter frame, thereby preventing the activated carbon from accumulating at the bottom of the filter frame, so that the activated carbon can be evenly set in the middle of the filter screen and the filter frame.

[0009] Preferably, a second damping rod is evenly fixedly connected to one end of the ventilation device housing close to the motor, and a connecting ring is fixedly connected to one end of the second damping rod away from the ventilation device housing. A second spring is sleeved on the surface of the second damping rod, and one end of the second spring is fixedly connected to one side of the ventilation device housing, and the end of the second spring close to the second damping rod is fixedly connected to one side of the connecting ring.

[0010] The effect achieved by the above components is: the second spring pulls the connecting ring toward the ventilation device housing, so that the connecting ring is squeezed on the side of the filter frame away from the filter screen, thereby confining the filter frame inside the ventilation device housing.

[0011] Preferably, a third damping rod is evenly fixedly connected to the surface of the ventilation device housing near one end of the motor, an L-shaped plate is fixedly connected to the end of the third damping rod away from the ventilation device housing, a third spring is sleeved on the surface of the third damping rod, one end of the third spring is fixedly connected to the surface of the ventilation device housing, and the end of the third spring near the third damping rod is fixedly connected to one side of the L-shaped plate.

[0012] The effect achieved by the above components is: the L-shaped plate is pulled toward the ventilation device housing through the third spring, so that the end of the L-shaped plate away from the third damping rod is arranged on the side of the connecting ring away from the ventilation device housing, so that the connecting ring can be well arranged on one side of the ventilation device housing.

[0013] Preferably, the connecting device includes a rectangular sleeve, which is fixedly connected to the central surface of the rotating fan, and the inner wall of the rectangular sleeve is slidably connected to the fan blade. A notch is provided on one side of the rectangular sleeve, and a rubber block is provided on the inner wall of the notch, and one side of the rubber block is fixedly connected to one side of the fan blade.

[0014] The effect achieved by the above components is: when using the connecting device, manually slide the fan blades into the inside of the rectangular sleeve, and then squeeze the rubber block into the inside of the gap, so that the fan blades can be well restricted inside the rectangular sleeve. The reverse operation makes it easy to replace the fan blades individually.

[0015] Preferably, a fixing rod is inserted through the top of the rectangular sleeve for sliding, and the fixing rod is inserted through the top of the fan blade for sliding.

[0016] The effect achieved by the above components is: the fixing rod is inserted into the interior of the rectangular sleeve, and then the fixing rod passes through the interior of the fan blade, so that the fixing rod can be well confined inside the fan blade.

[0017] Preferably, the end of the fixing rod away from the rectangular sleeve is fixedly connected to a connecting plate, the surface of the fixing rod is provided with a fourth spring, one end of the fourth spring is fixedly connected to the bottom of the connecting plate, and the end of the fourth spring close to the fixing rod is fixedly connected to one side of the rectangular sleeve.

[0018] The effect achieved by the above components is: the connecting plate is pulled toward the rectangular sleeve by the fourth spring, thereby restricting the fixing rod to the inside of the fan blade.

[0019] Preferably, the connecting plate is evenly fixedly connected to a locking rod on one side close to the fixed rod, the locking rod slides through and is inserted into the top of the rectangular sleeve, the locking rod slides through and is inserted into the top of the fan blade, and the locking rod is fixedly connected to a rubber conical block on one end away from the connecting plate.

[0020] The effect achieved by the above components is: the locking rod is inserted into the inside of the rectangular sleeve, and the locking rod passes through the fan blade, so that the rubber conical block can be set on the side of the rectangular sleeve away from the connecting plate, which can well limit the locking rod inside the fan blade.

[0021] In the utility model, a limiting device is provided. When the limiting device is used, the activated carbon is manually and evenly placed between the filter frame and the filter screen, and then the first spring is used to squeeze the positioning strip in the direction away from the storage slot. In this way, the positioning strip can be set on the side of the filter frame away from the filter screen, and the filter frame can be well restricted to one side of the filter screen, and the activated carbon will not affect the ventilation. In this way, when ventilation is carried out, the activated carbon can well adsorb the gas in the air, which can prevent the gas from being directly discharged into the outside air to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of a ventilation device for coal mine gas prevention and control proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of a new positioning rod proposed in the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the new connecting ring proposed in the utility model;

[0025] Figure 4 The utility model provides a three-dimensional structural diagram of a new type of fixing rod.

[0026] Legend: 1. Ventilation device housing; 2. Support frame; 3. Motor; 4. Rotating fan; 5. Limiting device; 501. Filter screen; 502. Filter frame; 503. Positioning rod; 504. Storage slot; 505. Positioning strip; 506. First damping rod; 507. First spring; 508. Connecting ring; 509. Second damping rod; 510. Second spring; 511. Third damping rod; 512. Third spring; 513. L-shaped plate; 6. Connecting device; 601. Rectangular sleeve; 602. Fan blade; 603. Rubber block; 604. Notch; 605. Fixing rod; 606. Fourth spring; 607. Connecting plate; 608. Positioning rod; 609. Rubber conical block. DETAILED DESCRIPTION

[0027] Example 1, as Figure 1-4 As shown, a ventilation device for coal mine gas prevention and control, the inner wall of the ventilation device shell 1 is fixedly connected to a support frame 2, one side of the support frame 2 is fixedly connected to a motor 3, the output end of the motor 3 is fixedly connected to a rotary fan 4, a limiting device 5 is provided on the side of the ventilation device shell 1 close to the motor 3, and a connecting device 6 is provided on one side of the rotary fan 4. When the ventilation device is used, the ventilation device is set at the ventilation port, and the rotary fan 4 is driven to rotate by the motor 3, so that the gas generated during the working process inside the coal mine can be transported to the external environment, which can avoid the risk of gas explosion inside the coal mine to a certain extent.

[0028] Reference Figure 2 and Figure 3The limiting device 5 includes a filter screen 501, which is fixedly connected to the inner wall of the ventilation device housing 1 on the side close to the motor 3. A filter frame 502 is provided on the side of the filter screen 501 away from the ventilation device housing 1. The filter frame 502 is slidably connected to the inner wall of the ventilation device housing 1. A storage groove 504 is provided on the side of the ventilation device housing 1 close to the motor 3. A positioning strip 505 is slidably connected to the inner wall of the storage groove 504. The positioning strip 505 is provided on the side of the filter frame 502 away from the ventilation device housing 1. A first damping rod 506 is fixedly connected to one side of the inner wall of the storage groove 504. The bottom of the first damping rod 506 is fixedly connected to one side of the positioning strip 505. The surface of the first damping rod 506 is sleeved with a first spring 507. The first spring One end of 507 is fixedly connected to one side of the inner wall of the storage groove 504, and one end of the first spring 507 close to the first damping rod 506 is fixedly connected to one side of the positioning strip 505. When using the limiting device 5, the activated carbon is manually evenly arranged between the filter frame 502 and the filter screen 501, and then the positioning strip 505 is squeezed in the direction away from the storage groove 504 by the first spring 507. In this way, the positioning strip 505 can be arranged on the side of the filter frame 502 away from the filter screen 501, and then the filter frame 502 can be well restricted to the side of the filter screen 501, and the activated carbon will not affect the ventilation. In this way, when ventilation is carried out, the activated carbon can well adsorb the gas in the air, which can achieve a certain degree of ventilation. In order to prevent the gas from being directly discharged into the outside air, the inner wall of the filter frame 502 is evenly fixedly connected with a positioning rod 503, and the positioning rod 503 is arranged on the side of the filter 501 away from the motor 3. The positioning rod 503 is arranged in the middle of the filter 501 and the filter frame 502, thereby preventing the activated carbon from accumulating at the bottom of the filter frame 502. In this way, the activated carbon can be evenly arranged in the middle of the filter 501 and the filter frame 502. The end of the ventilation device housing 1 close to the motor 3 is evenly fixedly connected with a second damping rod 509, and the end of the second damping rod 509 away from the ventilation device housing 1 is fixedly connected with a connecting ring 508. The surface of the second damping rod 509 is provided with a second spring 510, and one end of the second spring 510 and the ventilation device housing 1, one end of the second spring 510 close to the second damping rod 509 is fixedly connected to one side of the connecting ring 508, and the connecting ring 508 is pulled toward the direction close to the ventilation device housing 1 by the second spring 510, so that the connecting ring 508 can be squeezed on the side of the filter frame 502 away from the filter screen 501, so that the filter frame 502 can be restricted inside the ventilation device housing 1, and the surface of the ventilation device housing 1 close to the motor 3 is evenly fixedly connected with a third damping rod 511, and the end of the third damping rod 511 away from the ventilation device housing 1 is fixedly connected with an L-shaped plate 513, and the surface of the third damping rod 511 is sleeved with a third spring 512, and one end of the third spring 512 is fixedly connected to the surface of the ventilation device housing 1.The end of the third spring 512 closest to the third damping rod 511 is fixedly connected to one side of the L-shaped plate 513. The third spring 512 pulls the L-shaped plate 513 toward the ventilation device housing 1, thereby causing the end of the L-shaped plate 513 away from the third damping rod 511 to be positioned on the side of the connecting ring 508 away from the ventilation device housing 1. This allows the connecting ring 508 to be positioned on the side of the ventilation device housing 1.

[0029] Reference Figure 4 The connecting device 6 includes a rectangular sleeve 601, which is fixedly connected to the central surface of the rotating fan 4. The inner wall of the rectangular sleeve 601 is slidably connected to the fan blade 602. A notch 604 is provided on one side of the rectangular sleeve 601. A rubber block 603 is provided on the inner wall of the notch 604. One side of the rubber block 603 is fixedly connected to one side of the fan blade 602. When using the connecting device 6, the fan blade 602 is manually slid into the inside of the rectangular sleeve 601, and then the rubber block 603 is squeezed into the inside of the notch 604, so that The fan blades 602 are well restricted in the interior of the rectangular sleeve 601. The reverse operation facilitates the individual replacement of the fan blades 602. The top of the rectangular sleeve 601 is slidably penetrated and inserted with a fixing rod 605. The fixing rod 605 is slidably penetrated and inserted into the top of the fan blade 602. The fixing rod 605 is inserted into the interior of the rectangular sleeve 601, and then the fixing rod 605 passes through the interior of the fan blade 602. In this way, the fixing rod 605 can be well restricted in the interior of the fan blade 602. The fixing rod 605 is fixed to the end away from the rectangular sleeve 601. The connecting plate 607 is connected, and the surface of the fixing rod 605 is provided with a fourth spring 606. One end of the fourth spring 606 is fixedly connected to the bottom of the connecting plate 607. The end of the fourth spring 606 close to the fixing rod 605 is fixedly connected to one side of the rectangular sleeve 601. The connecting plate 607 is pulled toward the direction close to the rectangular sleeve 601 by the fourth spring 606, so that the fixing rod 605 is restricted inside the fan blade 602. The side of the connecting plate 607 close to the fixing rod 605 is evenly fixedly connected with a locking rod 608. The rod 608 slides through and is inserted into the top of the rectangular sleeve 601, and the locking rod 608 slides through and is inserted into the top of the fan blade 602. The end of the locking rod 608 away from the connecting plate 607 is fixedly connected to a rubber conical block 609. The locking rod 608 is inserted into the interior of the rectangular sleeve 601, and the locking rod 608 passes through the fan blade 602. In this way, the rubber conical block 609 can be set on the side of the rectangular sleeve 601 away from the connecting plate 607, which can well limit the locking rod 608 inside the fan blade 602.

[0030] Working principle: when using the ventilation device, the ventilation device is set at the ventilation port, and then the motor 3 drives the rotary fan 4 to rotate, so that the gas generated during the working process inside the coal mine can be transported to the external environment, which can avoid the risk of gas explosion inside the coal mine to a certain extent. When using the limiting device 5, manually set the activated carbon evenly between the filter frame 502 and the filter screen 501, and then squeeze the positioning strip 505 in the direction away from the receiving groove 504 through the first spring 507, so that the positioning strip 505 can be set on the side of the filter frame 502 away from the filter screen 501, and the second spring 510 is used to push it closer to the ventilation port. The connecting ring 508 is pulled in the direction of the ventilation device housing 1, so that the connecting ring 508 can be squeezed on the side of the filter frame 502 away from the filter screen 501, and the L-shaped plate 513 is pulled in the direction close to the ventilation device housing 1 through the third spring 512, so that the end of the L-shaped plate 513 away from the third damping rod 511 is set on the side of the connecting ring 508 away from the ventilation device housing 1, so that the connecting ring 508 can be well set on the side of the ventilation device housing 1, and the filter frame 502 can be well restricted on the side of the filter screen 501, and the positioning rod 503 is set between the filter screen 501 and the filter frame 502, so as to avoid the activated carbon pile. The activated carbon is accumulated at the bottom of the filter frame 502, so that the activated carbon can be evenly arranged between the filter screen 501 and the filter frame 502, and the activated carbon will not affect the ventilation. In this way, when ventilation is performed, the activated carbon can well adsorb the gas in the air, which can prevent the gas from being directly discharged into the outside air to a certain extent. When using the connecting device 6, manually slide the fan blade 602 into the interior of the rectangular sleeve 601, and then squeeze the rubber block 603 into the inside of the notch 604, insert the fixing rod 605 into the interior of the rectangular sleeve 601, and then make the fixing rod 605 pass through the interior of the fan blade 602, through the fourth spring 6 06 Pull the connecting plate 607 toward the rectangular sleeve 601, so that the fixing rod 605 is restricted inside the fan blade 602. In this way, the fixing rod 605 can be well restricted inside the fan blade 602, and then the locking rod 608 is inserted into the interior of the rectangular sleeve 601, and the locking rod 608 passes through the fan blade 602. In this way, the rubber conical block 609 can be set on the side of the rectangular sleeve 601 away from the connecting plate 607. In this way, the locking rod 608 can be well restricted inside the fan blade 602. In this way, the fan blade 602 can be well restricted inside the rectangular sleeve 601. The reverse operation facilitates the individual replacement of the fan blade 602.

[0031] It should be noted that all damping rods in this case are retractable dampers that can absorb energy during the retraction and extension process.

Claims

1. A ventilation device for coal mine gas prevention and control, comprising a ventilation device housing (1), characterized in that: The inner wall of the ventilation device housing (1) is fixedly connected to a support frame (2), one side of the support frame (2) is fixedly connected to a motor (3), the output end of the motor (3) is fixedly connected to a rotary fan (4), a limiting device (5) is provided on a side of the ventilation device housing (1) close to the motor (3), a connecting device (6) is provided on one side of the rotary fan (4), the limiting device (5) comprises a filter (501), the filter (501) is fixedly connected to the inner wall of the ventilation device housing (1) close to the motor (3), a filter frame (502) is provided on a side of the filter (501) away from the ventilation device housing (1), the filter frame (502) is slidably connected to the inner wall of the ventilation device housing (1), and the ventilation device housing (1) A receiving groove (504) is provided on a side close to the motor (3), and a latching strip (505) is slidably connected to the inner wall of the receiving groove (504), and the latching strip (505) is arranged on a side of the filter frame (502) away from the ventilation device housing (1). A first damping rod (506) is fixedly connected to one side of the inner wall of the receiving groove (504), and the bottom of the first damping rod (506) is fixedly connected to one side of the latching strip (505). A first spring (507) is sleeved on the surface of the first damping rod (506), and one end of the first spring (507) is fixedly connected to one side of the inner wall of the receiving groove (504). The end of the first spring (507) close to the first damping rod (506) is fixedly connected to one side of the latching strip (505).

2. A ventilation device for coal mine gas prevention and control according to claim 1, characterized in that: The inner wall of the filter frame (502) is evenly and fixedly connected with a positioning rod (503), and the positioning rod (503) is arranged on a side of the filter screen (501) away from the motor (3).

3. A ventilation device for coal mine gas prevention and control according to claim 1, characterized in that: The end of the ventilation device housing (1) close to the motor (3) is evenly fixedly connected to a second damping rod (509), the end of the second damping rod (509) away from the ventilation device housing (1) is fixedly connected to a connecting ring (508), a second spring (510) is sleeved on the surface of the second damping rod (509), one end of the second spring (510) is fixedly connected to one side of the ventilation device housing (1), and the end of the second spring (510) close to the second damping rod (509) is fixedly connected to one side of the connecting ring (508).

4. A ventilation device for coal mine gas prevention and control according to claim 1, characterized in that: A third damping rod (511) is evenly and fixedly connected to the surface of one end of the ventilation device housing (1) close to the motor (3); an end of the third damping rod (511) away from the ventilation device housing (1) is fixedly connected to an L-shaped plate (513); a third spring (512) is sleeved on the surface of the third damping rod (511); one end of the third spring (512) is fixedly connected to the surface of the ventilation device housing (1); and one end of the third spring (512) close to the third damping rod (511) is fixedly connected to one side of the L-shaped plate (513).

5. The ventilation device for coal mine gas prevention and control according to claim 1, characterized in that: The connecting device (6) comprises a rectangular sleeve (601), the rectangular sleeve (601) being fixedly connected to the central surface of the rotating fan (4), the inner wall of the rectangular sleeve (601) being slidably connected to the fan blade (602), a notch (604) being provided on one side of the rectangular sleeve (601), a rubber block (603) being provided on the inner wall of the notch (604), and one side of the rubber block (603) being fixedly connected to one side of the fan blade (602).

6. A ventilation device for coal mine gas prevention and control according to claim 5, characterized in that: A fixing rod (605) is inserted and slidably penetrated through the top of the rectangular sleeve (601), and the fixing rod (605) is inserted and slidably penetrated through the top of the fan blade (602).

7. A ventilation device for coal mine gas prevention and control according to claim 6, characterized in that: One end of the fixing rod (605) away from the rectangular sleeve (601) is fixedly connected to a connecting plate (607); a fourth spring (606) is sleeved on the surface of the fixing rod (605); one end of the fourth spring (606) is fixedly connected to the bottom of the connecting plate (607); and one end of the fourth spring (606) close to the fixing rod (605) is fixedly connected to one side of the rectangular sleeve (601).

8. A ventilation device for coal mine gas prevention and control according to claim 7, characterized in that: A locking rod (608) is evenly fixedly connected to one side of the connecting plate (607) close to the fixing rod (605), the locking rod (608) is slidably inserted into the top of the rectangular sleeve (601), the locking rod (608) is slidably inserted into the top of the fan blade (602), and the end of the locking rod (608) away from the connecting plate (607) is fixedly connected to a rubber conical block (609).

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