Ventilation device for coal mine safety

Abstract

The utility model relates to the field of ventilation devices, and discloses a coal mine safety ventilation device which comprises a supporting frame, a shell is fixedly connected to the top of the outer wall of the supporting frame, a grating is fixedly connected to the end of the inner wall of the shell, a first motor is fixedly connected to the inner wall of the shell, and a first fan blade is fixedly connected to the output end of the first motor. A second motor is fixedly connected to the inner wall of the shell, and a second fan blade is fixedly connected to an output shaft of the second motor. According to the utility model, by arranging the shunting pipes, the filtering box, the sealing plate, the flow limiting plate and the limiting assembly, when the filtering system needs to be replaced, the limiting block is manually pulled upwards to release limiting, the sliding rod is moved backwards to drive the sealing plate to move transversely, and the sealing plate drives the flow limiting plate to close the shunting pipe on one side, so that an air source is blown into a coal mine hole from the shunting pipe on the other side; and then the filter element in the filter box on the closed side is replaced, so that the filter system is replaced under the condition that the operation of the ventilation device is not influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation device field especially relates to a coal mine safety ventilation device. BACKGROUND

[0002] In the coal mining process, the ventilation system plays a vital role, due to the particularity of the coal mine underground environment, there is a series of safety hidden trouble, such as gas explosion, mine collapse, poor ventilation and so on, therefore, scientific and reasonable application of coal mine ventilation system is important to ensure the life safety of miners and improve production efficiency.

[0003] The existing coal mine safety ventilation device usually adopts the air pressure machine to suck air from outside and blow to the coal mine hole to provide sufficient oxygen for the construction personnel.

[0004] The existing coal mine installation ventilation device usually needs to stop power to replace the filter system in the air pipe, cannot replace the filter system without affecting the coal mine ventilation, leads to the temporary oxygen shortage in the coal mine hole, and therefore puts forward a coal mine safety ventilation device to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a coal mine safety ventilation device, which aims at improving the problem that the filter system cannot be replaced without affecting the coal mine ventilation in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a coal mine safety ventilation device, including support frame, the support frame outer wall top fixedly connected with the casing, the casing inner wall end fixedly connected with the grid, the casing inner wall fixedly connected with motor no.

[0007] As a further description of the above technical scheme:

[0008] The casing outer wall bottom is hinged with an access door, the access door inner wall is elastically connected with a fixed block through a compression spring, the fixed block outer wall is fixedly connected with a limit handle, and the casing bottom inner wall is provided with a fixed groove.

[0009] As a further description of the above technical scheme:

[0010] The limiting assembly comprises a sliding rod, the outer wall bottom of the sliding rod is fixedly connected to the outer top of the sealing plate, the outer wall of the sliding rod is elastically connected to a limiting block through a limiting spring, and a limiting groove is formed in the top of the outer wall of the shunt pipe.

[0011] As a further description of the above technical scheme:

[0012] The outer wall of the flow limiting plate is slidably connected to the inner wall of the shunt pipe.

[0013] As a further description of the above technical scheme:

[0014] One end of the compression spring is fixedly connected to the inner wall of the inspection door, and the other end of the compression spring is fixedly connected to the outer wall bottom end of the fixed block.

[0015] As a further description of the above technical scheme:

[0016] The outer wall of the fixed block is slidably connected to the inner wall of the inspection door, the outer wall of the limiting handle is slidably connected to the inner wall of the inspection door, and the outer wall top end of the fixed block is clamped to the inner wall of the fixed groove.

[0017] As a further description of the above technical scheme:

[0018] One end of the limiting spring is fixedly connected to the outer wall top lower surface of the sliding rod, and the other end of the limiting spring is fixedly connected to the outer wall top of the limiting block.

[0019] As a further description of the above technical scheme:

[0020] The inner wall of the limiting block is slidably connected to the outer wall of the sliding rod, the outer wall bottom end of the limiting block is clamped to the inner wall of the limiting groove, and the outer wall of the sliding rod is slidably connected to the top inner wall of the shunt pipe.

[0021] The utility model has the advantages of the following:

[0022] 1、the utility model discloses a shunt pipe, filter box, sealing plate, flow limiting plate, limiting assembly are set up, when needing to replace the filter system, through the manual up -pulling limiting block and removing the limiting, then moving the sliding rod drives the sealing plate and moves horizontally, through the sealing plate and drives the flow limiting plate to close one side shunt pipe, thereby make the air source blow -off to the coal mine hole from the other side shunt pipe, then replace the filter element in the filter box of closing one side, realize the filter system replacement under the condition of not influencing the ventilation device operation.

[0023] 2. The utility model discloses a casing, access door, fixed block, compression spring, limiting handle, fixed groove are set up to when overhauling the device, and the fixed block is driven to remove the limiting through the manual opposite extrusion two groups of limiting handle, and then the access door is manually unfolded to open the casing, and the motor one and the motor two are more directly observed by the overhauling personnel, and the check maintenance is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A kind of casing three-dimensional schematic view of the utility model is proposed for coal mine safety ventilation device;

[0025] Figure 2 A kind of casing sectional three-dimensional schematic view of the utility model is proposed for coal mine safety ventilation device;

[0026] Figure 3 A kind of access door unfolded three-dimensional schematic view of the utility model is proposed for coal mine safety ventilation device;

[0027] Figure 4 A kind of shunt pipe three-dimensional schematic view of the utility model is proposed for coal mine safety ventilation device;

[0028] Figure 5 A kind of Figure 3 middle A part enlarged three-dimensional schematic view of the utility model is proposed for coal mine safety ventilation device;

[0029] Figure 6 A kind of Figure 4 middle B part enlarged three-dimensional schematic view of the utility model is proposed for coal mine safety ventilation device.

[0030] Legend:

[0031] 1, support frame;2, casing;3, grating;4, motor one;5, fan blade one;6, access door;7, motor two;8, fan blade two;9, shunt pipe;10, filter box;11, sealing plate;12, flow limiting plate;13, slide rod;14, limiting spring;15, limiting block;16, limiting groove;17, fixed block;18, compression spring;19, limiting handle;20, fixed groove. DETAILED DESCRIPTION

[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0033] Reference Figures 1-3The utility model provides a kind of ventilation device for coal mine safety of an embodiment: a kind of ventilation device for coal mine safety, including support frame 1, support frame 1 is used to overhead shell 2, make it keep certain height, avoid ground dust suction, support frame 1 outer wall top is fixedly connected with shell 2, shell 2 sets two groups of longer barrel, for providing cavity for wind source, one group is used to suck harmful gas in coal mine hole, another group is used to blow external air into coal mine hole, shell 2 inner wall end is fixedly connected with grating 3, grating 3 is used to avoid foreign matter being sucked into shell 2, cause fan blade one 5 and motor one 4 damage, shell 2 inner wall is fixedly connected with motor one 4, motor one 4 is prior art, not too much description, for driving fan blade one 5 suction external air into shell 2, motor one 4 output end is fixedly connected with fan blade one 5, shell 2 inner wall is fixedly connected with motor two 7, motor two 7 is prior art, not too much description, for driving fan blade two 8 reverse suction harmful gas of coal mine hole, motor two 7 output shaft is fixedly connected with fan blade two 8, shell 2 outer wall tail end is fixedly connected with shunt pipe 9, shunt pipe 9 sets Y type shunt, for changing the position of flow limiting plate 12 by limiting assembly, to realize two groups of simultaneous shunt or single group shunt, filter box 10 is set in shunt pipe 9 middle end, filter box 10 is prior art, not too much description, inside setting filter element is used to filter dust in air, sealing plate 11 is slidably connected with the top inner wall of shunt pipe 9, sealing plate 11 is used to slide in the top inner wall of shunt pipe 9, avoid gas leakage when single group shunt, flow limiting plate 12 is fixedly connected on the outer wall bottom of sealing plate 11, flow limiting plate 12 sets up sealing rubber strip on outer wall, avoid wind source leakage, limiting assembly is set on the top outer wall of sealing plate 11, flow limiting plate 12 outer wall is slidably connected on the inner wall of shunt pipe 9.

[0034] Refer to Figures 3-5The bottom of the outer wall of the shell 2 is hinged with an access door 6, which is provided for providing a quick access channel for maintenance personnel. The existing coal mine safety ventilation device usually needs to remove the shell 2 by screwing a plurality of bolts to perform maintenance, and the motor 4 and the motor 7 cannot be quickly inspected, maintained and repaired. The inner wall of the access door 6 is elastically connected with a fixed block 17 through a compression spring 18. The fixed block 17 is used for clamping and fixing the fixed groove 20 to fix the closed state of the access door 6. The outer wall of the fixed block 17 is fixedly connected with a limiting handle 19. The limiting handle 19 is used for external manual dislocation and use, which is convenient for manual single-handed operation. The bottom inner wall of the shell 2 is provided with a fixed groove 20. The fixed groove 20 is provided in two groups opposite to each other, and is used for clamping and fixing the fixed block 17 to fix the access door 6. One end of the compression spring 18 is fixedly connected to the inner wall of the access door 6. The other end of the compression spring 18 is fixedly connected to the outer wall bottom end of the fixed block 17. Through the opposite extrusion force between the compression spring 18 and the access door 6, the fixed block 17 always remains clamped on the inner wall of the fixed groove 20 without being affected by external force. The outer wall of the fixed block 17 is slidably connected to the inner wall of the access door 6. The outer wall of the limiting handle 19 is slidably connected to the inner wall of the access door 6. The outer wall top end of the fixed block 17 is clamped to the inner wall of the fixed groove 20.

[0035] Referring to Figures 4-6 The limiting assembly comprises a sliding rod 13, a limiting block 15 and a limiting spring 14. The outer wall of the sliding rod 13 is provided with a directional groove for clamping the inner wall of the limiting block 15 to keep the limiting block 15 stable up and down movement. The outer wall bottom of the sliding rod 13 is fixedly connected to the outer top of the sealing plate 11. The outer wall of the sliding rod 13 is elastically connected with the limiting block 15 through the limiting spring 14. The bottom of the limiting block 15 is provided with a sealing plate 11 top for clamping and fixing the limiting groove 16 to fix the shunt position of the limiting flow plate 12. The outer wall top of the shunt pipe 9 is provided with three limiting grooves 16. The middle one is used to keep the pipelines on both sides of the shunt pipe 9 in an open state. The limiting grooves 16 on both sides are used to clamp and block the pipelines on one side to keep the pipelines closed. One end of the limiting spring 14 is fixedly connected to the outer wall top lower surface of the sliding rod 13. The other end of the limiting spring 14 is fixedly connected to the outer wall top of the limiting block 15. Through the opposite extrusion force between the limiting spring 14 and the sliding rod 13, the limiting block 15 always remains clamped on the inner wall of the limiting groove 16 without being affected by external force. The inner wall of the limiting block 15 is slidably connected to the outer wall of the sliding rod 13. The outer wall bottom end of the limiting block 15 is clamped to the inner wall of the limiting groove 16. The outer wall of the sliding rod 13 is slidably connected to the top inner wall of the shunt pipe 9.

[0036] Working principle: when the filter core in the filter box 10 needs to be replaced, the limiting block 15 is manually pulled out of the limiting groove 16 to release the limit, then the sealing plate 11 is moved transversely by the sliding rod 13, the flow limiting plate 12 is moved in the inner wall of the shunt pipe 9 by the sealing plate 11, thereby closing one side of the shunt pipe 9, the air source is blown into the coal mine tunnel from the other side of the shunt pipe 9, then the filter core inside the filter box 10 on the closed side is manually replaced, four groups of filter cores are replaced in turn, and the filter system is replaced without affecting the operation of the device.

[0037] When the device is overhauled, the fixed block 17 is driven out of the fixed groove 20 by manually extruding the two groups of limiting handles 19, then the maintenance door 6 is manually unfolded to open the inside of the shell 2, so that the motor one 4 and the motor two 7 are more intuitive to check, and it is convenient for maintenance personnel to maintain and repair them, thereby improving the service life of the device.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A ventilation device for coal mine safety comprising a support frame (1), characterized in that: The support frame (1) outer wall top fixedly connected with the shell (2), the shell (2) inner wall end fixedly connected with the grid (3), the shell (2) inner wall fixedly connected with motor one (4), the motor one (4) output fixedly connected with the fan blade one (5), the shell (2) inner wall fixedly connected with motor two (7), the motor two (7) output shaft fixedly connected with the fan blade two (8), the shell (2) outer wall tail fixedly connected with the shunt pipe (9), the shunt pipe (9) middle end is provided with filter box (10), the shunt pipe (9) top inner wall slidingly connected with the sealing plate (11), the sealing plate (11) outer wall bottom fixedly connected with the flow limiting plate (12), the sealing plate (11) outer wall top is provided with limiting assembly.

2. The ventilation device for coal mine safety according to claim 1, characterized in that: The shell (2) outer wall bottom hinged with the access door (6), the access door (6) inner wall is elastically connected with the fixed block (17) through the compression spring (18), the fixed block (17) outer wall fixedly connected with the limit handle (19), the shell (2) bottom inner wall is provided with fixed groove (20).

3. The ventilation device for coal mine safety according to claim 1, characterized in that: The limiting assembly includes a sliding rod (13), the sliding rod (13) outer wall bottom fixedly connected in the outer top of sealing plate (11), the sliding rod (13) outer wall is elastically connected with the limiting block (15) through the limiting spring (14), the shunt pipe (9) outer wall top is provided with limiting slot (16).

4. The ventilation device for coal mine safety according to claim 1, characterized in that: The flow limiting plate (12) outer wall slidingly connected on the inner wall of the shunt pipe (9).

5. The ventilation device for coal mine safety according to claim 2, characterized in that: One end of the compression spring (18) is fixedly connected to the inner wall of the access door (6), and the other end of the compression spring (18) is fixedly connected to the outer wall bottom end of the fixed block (17).

6. The ventilation device for coal mine safety according to claim 2, characterized in that: The fixed block (17) outer wall slidingly connected in the inner wall of the access door (6), the limit handle (19) outer wall slidingly connected in the inner wall of the access door (6), the fixed block (17) outer wall top is clamped in the inner wall of the fixed groove (20).

7. The ventilation device for coal mine safety according to claim 3, characterized in that: One end of the limiting spring (14) is fixedly connected to the outer wall top lower surface of the sliding rod (13), and the other end of the limiting spring (14) is fixedly connected to the outer wall top of the limiting block (15).

8. The ventilation device for coal mine safety according to claim 3, characterized in that: The limiting block (15) inner wall slidingly connected on the outer wall of the sliding rod (13), the limiting block (15) outer wall bottom end is clamped in the inner wall of the limiting slot (16), and the sliding rod (13) outer wall slidingly connected on the top inner wall of the shunt pipe (9).

Images