Coal mine ventilation device with gas detection function

Abstract

The utility model discloses a coal mine ventilation device with a gas detection function, which belongs to the technical field of coal mine ventilation and comprises a ventilation pipe, a ventilation mechanism is arranged in the ventilation pipe, a filter plate is fixedly connected between the inner walls of the ventilation pipe, and the inner walls of the ventilation pipe are fixedly connected with a gas sensor. A sweeping mechanism is arranged on the side, away from the ventilation mechanism, of the filter plate and comprises a reciprocating lead screw rotationally connected between the inner walls of the ventilation pipe. The device has the beneficial effects that the protective shell is arranged, the brush roller is arranged in the protective shell, airflow is blocked through the protective shell, and swept dust can be conveniently collected; a plurality of comb teeth are fixedly connected to the inner wall of the protective shell, brushes on the brush roller can generate elastic deformation when passing through the comb teeth, and are quickly reset after being separated from the comb teeth, so that dust between the brushes is shaken off, and the cleaning effect is guaranteed; and the linkage assembly is arranged, kinetic energy of the fan blades is used for driving the protective shell to drive the brush roller to ascend and descend, an extra power source is avoided, and the resource utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine ventilation, in particular to a coal mine ventilation device with a gas detection function. Background Art

[0002] Coal is a common energy source in people's daily life, so the demand for coal is very large. In the process of coal mining, a large amount of dust and gas are easily generated. These dust and gas not only pollute the environment, but also endanger the health of workers. In serious cases, explosions may occur. Therefore, pipeline ventilation, dust removal and air exchange are required.

[0003] After searching, the Chinese patent announcement number CN219412647U is found, which discloses a coal mine ventilation device with a gas detection function. The servo motor drives the first two-way ventilation fan blade and the second two-way ventilation fan blade to rotate, thereby accelerating the ventilation of the ventilation duct. At the same time, the cleaning brush rotates with the first two-way ventilation fan blade and the second two-way ventilation fan blade, thereby cleaning the dust adsorbed on the surface of the filter disc. Therefore, the filter disc not only prevents the dust from clogging the ventilation duct and affecting the ventilation, but also prevents the dust from blocking the methane sensor and affecting the gas detection. Therefore, the methane sensor can give an early warning in the first time to improve safety. Moreover, through the setting of the controller, the servo motor can be controlled to rotate in the opposite direction through the controller, thereby driving the first two-way ventilation fan blade and the second two-way ventilation fan blade to rotate in the opposite direction, thereby being able to reversely clean the dust adsorbed on the filter disc, thereby improving the cleaning effect of the filter disc.

[0004] However, due to the influence of airflow, the dust swept away may be re-adsorbed on the filter plate, affecting the cleaning effect. Utility Model Content

[0005] The purpose of the utility model is to provide a coal mine ventilation device with a gas detection function in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A coal mine ventilation device with a gas detection function comprises a ventilation pipe, a ventilation mechanism is arranged in the ventilation pipe, a filter plate is fixedly connected between the inner walls of the ventilation pipe, a gas sensor is fixedly connected to the inner wall of the ventilation pipe, a cleaning mechanism is arranged on the side of the filter plate away from the ventilation mechanism, the cleaning mechanism comprises a reciprocating screw rod rotatably connected between the upper and lower inner walls of the ventilation pipe, a slider is threadedly connected on the reciprocating screw rod, the slider is slidably connected between the inner walls of the ventilation pipe, a protective shell is fixedly connected on one side of the slider, a brush roller is rotatably connected between the inner walls of the protective shell, a plurality of brushes are arranged on the outer wall of the brush roller, a material guide block is fixedly connected to the inner bottom wall of the protective shell, a collecting box is fixedly connected to the bottom of the protective shell, the material guide block is tilted, a plurality of comb teeth are fixedly connected to the inner wall of the protective shell, the comb teeth extend into the brush of the brush roller, and the cleaning mechanism also comprises a power assembly, the power assembly is used to drive the brush roller to rotate, a linkage assembly is arranged between the reciprocating screw rod and the ventilation mechanism, and the linkage assembly is used to drive the reciprocating screw rod to rotate.

[0008] Preferably, the power assembly includes a full gear, the rear end of the brush roller extends out of the protective shell and is fixedly connected to the full gear, a rack is fixedly connected between the upper and lower inner walls of the ventilation pipe, and the full gear is meshed with the rack.

[0009] Preferably, the ventilation mechanism includes a vertical plate fixedly connected between the inner walls of the ventilation pipe, a rotating motor is fixedly connected to one side of the vertical plate, an output end of the rotating motor is connected to a rotating shaft through a coupling, and a plurality of fan blades are fixedly connected to the rotating shaft.

[0010] Preferably, the linkage assembly includes an auxiliary shaft rotatably connected to the ventilation duct wall, a driving bevel gear is fixedly connected to the rotating shaft, a driven bevel gear is fixedly connected to the auxiliary shaft, the driven bevel gear is meshed with the driving bevel gear, and a synchronous belt is connected between the auxiliary shaft and the reciprocating screw.

[0011] Preferably, a maintenance door is provided on the front side of the ventilation duct.

[0012] Preferably, an alarm light is provided on the top of the ventilation pipe, and the alarm light is electrically connected to the gas sensor.

[0013] The beneficial effects are: a protective shell is provided, and the brush roller is arranged in the protective shell, and the airflow is blocked by the protective shell to facilitate the collection of the swept dust; a plurality of comb teeth are fixedly connected to the inner wall of the protective shell, and the brush on the brush roller will produce elastic deformation when passing through the comb teeth, and quickly reset after separation from the comb teeth, thereby shaking off the dust between the brushes to ensure the cleaning effect; a linkage component is provided, and the kinetic energy of the fan blades is used to drive the protective shell to drive the brush roller to rise and fall, thereby avoiding the use of additional power sources and improving resource utilization.

[0014] The additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of a coal mine ventilation device with a gas detection function described in the utility model;

[0017] Figure 2 It is a front view of a coal mine ventilation device with a gas detection function described in the utility model;

[0018] Figure 3 It is a front view of the internal structure of a coal mine ventilation device with a gas detection function described in the utility model;

[0019] Figure 4 It is a rear view of a cleaning mechanism of a coal mine ventilation device with a gas detection function described in the utility model;

[0020] Figure 5 It is a schematic diagram of a filter plate of a coal mine ventilation device with a gas detection function described in the utility model.

[0021] The description of the accompanying drawings is as follows: 1. Ventilation duct; 101. Maintenance door; 201. Vertical plate; 202. Rotating motor; 203. Rotating shaft; 204. Fan blade; 3. Filter plate; 401. Reciprocating screw; 402. Sliding block; 403. Protective shell; 404. Brush roller; 405. Guide block; 406. Collecting box; 407. Comb teeth; 408. Full gear; 409. Rack; 501. Auxiliary shaft; 502. Driving bevel gear; 503. Driven bevel gear; 504. Synchronous belt; 6. Gas sensor; 7. Warning light. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] like Figure 1-Figure 5 As shown, a coal mine ventilation device with a gas detection function includes a ventilation pipe 1, a maintenance door 101 is opened on the front side of the ventilation pipe 1, a ventilation mechanism is arranged in the ventilation pipe 1, and the ventilation mechanism includes a vertical plate 201 bolted between the inner walls of the ventilation pipe 1, a rotating motor 202 is bolted to one side of the vertical plate 201, an output end of the rotating motor 202 is connected to a rotating shaft 203 through a coupling, a plurality of fan blades 204 are fixedly connected to the outer wall of the rotating shaft 203, and the rotating motor 202 is started, and the rotating motor 202 drives the rotating shaft 203 to drive the fan blades 204 to rotate, so as to extract the air in the mine cave, so that the outside air can quickly enter the mine cave, and the speed of air circulation is accelerated.

[0026] A filter plate 3 is bolted between the inner walls of the ventilation pipe 1, a gas sensor 6 is fixedly connected to the inner wall of the ventilation pipe 1, an alarm light 7 is provided on the top of the ventilation pipe 1, and the alarm light 7 is electrically connected to the gas sensor 6. The gas sensor 6 is a prior art and will not be described in detail.

[0027] A cleaning mechanism is provided on the side of the filter plate 3 away from the ventilation mechanism, and the cleaning mechanism includes a reciprocating screw 401 rotatably connected between the upper and lower inner walls of the ventilation pipe 1, a slider 402 is threadedly connected to the reciprocating screw 401, the slider 402 is slidably connected between the front and rear inner walls of the ventilation pipe 1, a protective shell 403 is bolted to one side of the slider 402, a brush roller 404 is rotatably connected between the inner walls of the protective shell 403, a plurality of brushes are provided on the outer wall of the brush roller 404, a guide block 405 is fixedly connected to the inner bottom wall of the protective shell 403, a collecting box 406 is bolted to the bottom of the protective shell 403, the guide block 405 is tilted, a plurality of comb teeth 407 located above the collecting box 406 are fixedly connected to the inner wall of the protective shell 403, the comb teeth 407 extend into the brush of the brush roller 404, so as to clean the dust in the brush.

[0028] The cleaning mechanism also includes a power assembly, which is used to drive the brush roller 404 to rotate. The power assembly includes a full gear 408. The rear end of the brush roller 404 extends out of the protective shell 403 and is fixedly connected to the full gear 408. A rack 409 is fixedly connected between the upper and lower inner walls of the ventilation pipe 1. The full gear 408 is meshed with the rack 409. The brush roller 404 will drive the full gear 408 to move. During the movement of the full gear 408, it is driven by the rack 409 to start driving the brush roller 404 to rotate, thereby improving the cleaning effect.

[0029] A linkage component is arranged between the reciprocating screw rod 401 and the ventilation mechanism, and the linkage component is used to drive the reciprocating screw rod 401 to rotate. The linkage component includes an auxiliary shaft 501 rotatably connected to the wall of the ventilation pipe 1, a driving bevel gear 502 is fixedly connected to the rotating shaft 203, a driven bevel gear 503 is fixedly connected to the auxiliary shaft 501, the driven bevel gear 503 is meshed with the driving bevel gear 502, and a synchronous belt 504 is connected between the auxiliary shaft 501 and the reciprocating screw rod 401. When the rotating shaft 203 rotates, the driving bevel gear 502 is driven to rotate, and the driving bevel gear 502 is meshed with the driven bevel gear 503, thereby driving the driven bevel gear 503 to drive the auxiliary shaft 501 to rotate, and the auxiliary shaft 501 rotates to drive the synchronous belt 504 to rotate, and the synchronous belt 504 drives the reciprocating screw rod 401 to rotate.

[0030] Working principle: When in use, the rotating motor 202 is started, and the rotating motor 202 drives the rotating shaft 203 to drive the fan blades 204 to rotate, so as to extract the air in the mine cave and accelerate the speed of air circulation. The dust in the air is filtered on the filter plate 3. The rotating shaft 203 rotates and drives the active bevel gear 502 to rotate. The active bevel gear 502 meshes with the driven bevel gear 503, thereby driving the driven bevel gear 503 to drive the auxiliary shaft 501 to rotate. The auxiliary shaft 501 rotates to drive the synchronous belt 504 to rotate. The synchronous belt 504 drives the reciprocating screw 401 to rotate. The reciprocating screw 401 drives the slider 402 to drive the protective shell 403 to slide up and down. When the protective shell 403 moves, it drives the brush roller 404 to move. The brush roller 404 drives The gear 408 is driven to move, and during the movement of the gear 408, it is driven by the rack 409 to start driving the brush roller 404 to rotate, so as to clean the filter plate 3. The cleaned dust gradually falls into the collection box 406 under the action of the guide block 405. The brush on the brush roller 404 will produce elastic deformation when passing through the grate teeth 407. The brush is quickly reset after separation from the grate teeth 407, thereby producing a certain amount of shaking, which is convenient for shaking off the dust between the brushes and ensuring the cleaning effect. When the gas content in the air exceeds the standard, the gas sensor 6 transmits an electrical signal to the alarm light 7, and the alarm light 7 flashes to remind the worker that the gas content exceeds the standard. When the collection box 406 needs to be cleaned, the maintenance door 101 is opened and the collection box 406 is removed.

[0031] The above shows and describes the basic principles, 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 for explaining the principles of 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 claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A coal mine ventilation device with a gas detection function, comprising a ventilation pipe (1), a ventilation mechanism is arranged in the ventilation pipe (1), a filter plate (3) is fixedly connected between the inner walls of the ventilation pipe (1), and a gas sensor (6) is fixedly connected to the inner wall of the ventilation pipe (1), characterized in that: A cleaning mechanism is provided on a side of the filter plate (3) away from the ventilation mechanism, the cleaning mechanism comprising a reciprocating screw (401) rotatably connected between the upper and lower inner walls of the ventilation pipe (1), a slider (402) being threadedly connected to the reciprocating screw (401), the slider (402) being slidably connected between the inner walls of the ventilation pipe (1), a protective shell (403) being fixedly connected to one side of the slider (402), a brush roller (404) being rotatably connected between the inner walls of the protective shell (403), a plurality of brushes being provided on the outer wall of the brush roller (404), and the protective shell (403) The inner bottom wall of the protective shell (403) is fixedly connected with a material guide block (405), the bottom of the protective shell (403) is fixedly connected with a collection box (406), the material guide block (405) is arranged obliquely, the inner wall of the protective shell (403) is fixedly connected with a plurality of comb teeth (407), the comb teeth (407) extend into the brush of the brush roller (404), the cleaning mechanism also includes a power component, the power component is used to drive the brush roller (404) to rotate, and a linkage component is provided between the reciprocating screw rod (401) and the ventilation mechanism, the linkage component is used to drive the reciprocating screw rod (401) to rotate.

2. A coal mine ventilation device with gas detection function according to claim 1, characterized in that: The power assembly comprises a full gear (408), the rear end of the brush roller (404) extends out of the protective shell (403) and is fixedly connected to the full gear (408), a rack (409) is fixedly connected between the upper and lower inner walls of the ventilation pipe (1), and the full gear (408) is meshed with the rack (409).

3. A coal mine ventilation device with gas detection function according to claim 1, characterized in that: The ventilation mechanism comprises a vertical plate (201) fixedly connected between the inner walls of the ventilation pipe (1), a rotating motor (202) being fixedly connected to one side of the vertical plate (201), an output end of the rotating motor (202) being connected to a rotating shaft (203) via a coupling, and a plurality of fan blades (204) being fixedly connected to the rotating shaft (203).

4. A coal mine ventilation device with gas detection function according to claim 3, characterized in that: The linkage assembly comprises an auxiliary shaft (501) rotatably connected to the wall of the ventilation pipe (1); a driving bevel gear (502) is fixedly connected to the rotating shaft (203); a driven bevel gear (503) is fixedly connected to the auxiliary shaft (501); the driven bevel gear (503) is meshed with the driving bevel gear (502); and a synchronous belt (504) is connected between the auxiliary shaft (501) and the reciprocating screw rod (401).

5. A coal mine ventilation device with gas detection function according to claim 1, characterized in that: A maintenance door (101) is provided on the front side of the ventilation pipe (1).

6. A coal mine ventilation device with gas detection function according to claim 1, characterized in that: An alarm light (7) is provided on the top of the ventilation pipe (1), and the alarm light (7) is electrically connected to the gas sensor (6).

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