Cleaning device for ventilator on coal mining face

By designing an automatic lifting mechanism and an electromagnetic plate to fix the protective cover, a cleaning device for coal mine face ventilation fans has been developed, solving the problem that existing cleaning devices cannot thoroughly clean the dust in the gaps of the protective cover, thus achieving thorough cleaning of the protective cover and improving ventilation efficiency.

CN223775466UActive Publication Date: 2026-01-09YONGCHENG COAL & ELECTRICITY HLDG GRP DENGFENG COAL IND CO LTD FENGYANG COAL MINE
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Patent Information

Application Number
CN202520096665.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2026-01-09
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

Existing cleaning devices are insufficient to thoroughly clean the dust inside the gaps of the ventilator cover, affecting ventilation efficiency.

Method used

A cleaning device for ventilation fans at coal mine working faces was designed. It adopts an automatic lifting mechanism and an electromagnetic plate to fix the protective cover, combined with a rotating and up-and-down moving brush cleaning method to thoroughly clean the dust on the end face and in the gaps of the protective cover.

Benefits of technology

It enables diverse cleaning of the fan cover, thoroughly removing dust and improving ventilation efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223775466U_ABST
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Abstract

The utility model provides a cleaning device for a ventilator on a coal mining face, which relates to the technical field of cleaning equipment and comprises a bottom plate and a second positioning pin. An automatic lifting mechanism is supported on the bottom plate through supporting stand columns and comprises a fixed plate and a movable plate. A ventilator shield is adsorbed on an electromagnetic plate to be fixed, after a motor is started, a first cleaning rod is driven to rotate through a rotating shaft of a first shifting rod, and the shield is rotationally cleaned through a brush; or the first positioning pin is pulled out, linkage between the first shifting rod and the first cleaning rod is contacted, then the second cleaning rod is used, the automatic lifting mechanism drives the second cleaning rod to reciprocate up and down, and one side of the protective cover is cleaned up and down through the brush; according to the device, the cleaning modes are diversified, compared with direct wiping with cleaning cloth, dust, difficult to remove, on the end face of the ventilator shield and in gaps can be thoroughly cleaned, and the cleaning effect is good; the problem that an existing cleaning device is single in cleaning mode and poor in cleaning effect is solved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of cleaning equipment, more specifically, it relates to a coal mining face ventilator cleaning device. BACKGROUND

[0002] At present, in the coal mining work, the ventilator is often used to accelerate the gas flow, and the internal gas of the mine is replaced to avoid the dust caused by the coal mining floating in the air for a long time, which not only affects the field of vision in the mine and the mining work, but also has a serious influence on the air quality in the mine. The ventilator rotates through the arc impeller, and the gas is sucked from one end of the air duct and blown out from the other end to accelerate the air flow. In order to avoid the foreign matters being sucked into the ventilator, a shield is often installed at the suction inlet.

[0003] After the ventilator is used for a long time, the shield at the suction inlet of the ventilator will be attached with thick dust, which will block the gaps in the shield and affect the ventilation efficiency. The general shield plate surface is grid-shaped or divergent, and the existing cleaning equipment has good cleaning effect on the end surface of the shield, but it is difficult to completely clean the dust in the gaps of the shield, and the use has certain limitations. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, the utility model provides a coal mining face ventilator cleaning device to solve the problem that the cleaning effect is poor due to the single cleaning mode of the existing cleaning device.

[0005] The utility model provides a coal mining face ventilator cleaning device, which is realized by the following specific technical means:

[0006] A coal mining face ventilator cleaning device, comprising a bottom plate, a first positioning pin and a second positioning pin; the bottom plate is supported by a supporting column and an automatic lifting mechanism, and the automatic lifting mechanism comprises a fixed plate and a movable plate; a sliding groove is arranged in the fixed plate in the up-down direction, and the movable plate is movably connected in the sliding groove of the fixed plate; a bent limiting rod is rotatably connected to one side of the fixed plate, and a connecting bracket is fixedly connected to one side of the fixed plate; the other end of the connecting bracket is fixedly connected to the bottom plate; a first lever and a second lever are rotatably connected to the connecting bracket; a rotating shaft is arranged at one end of the first lever, and a disc is arranged at one end of the second lever; the disc is sleeved on the rotating shaft; the other end of the rotating shaft is fixedly connected to the output end of the motor; the motor body is fixedly installed on one side of the connecting bracket; the other end of the rotating shaft is rotatably connected to a first cleaning rod, and a brush is attached to the front of the first cleaning rod; an n-shaped fixing frame is fixedly connected to the bottom plate; an arc-shaped electromagnetic plate is fixedly connected to one side of the fixing frame, and the arc opening of the electromagnetic plate faces upward; an electric telescopic rod is fixedly connected to the bottom plate.

[0007] Further, the center of the arc of the electromagnetic plate is located on the central axis of the rotating shaft of the first lever.

[0008] Further, the second positioning pin penetrates the rotating shaft of the first cleaning rod and the first rotating rod in the rotating cleaning state.

[0009] Further, the first positioning pin penetrates the disc of the first rotating rod and the second rotating rod in the up-and-down cleaning state, and the first rotating rod and the second rotating rod are crossed at 90 degrees.

[0010] Further, a vertical sliding strip is arranged in the sliding groove of the fixed plate, and a limiting stopper is arranged on the left side of the fixed plate; a horizontal perforation is arranged on the movable plate, and a vertical slot hole is arranged on the movable plate, and the sliding strip is limited in the slot hole; a boss is arranged on the left side of the movable plate, and the boss is clamped on the limiting stopper; two bosses are arranged on the right side of the movable plate, and the bottom surface of the upper boss is abutted by one end of the second rotating rod.

[0011] Further, the second cleaning rod is inserted into the horizontal perforation on the movable plate in the up-and-down cleaning state, an arc-shaped avoiding section is arranged on the second cleaning rod, a brush is arranged in front of the second cleaning rod, and a vertical sleeve is arranged on one end of the second cleaning rod and is slidably connected to the electric telescopic rod.

[0012] Compared with the prior art, the ventilation machine shroud is fixed by being adsorbed on the electromagnetic plate, the first cleaning rod is rotated by the rotating shaft of the first rotating rod after the motor is started, and the shroud is cleaned by the brush; or the first positioning pin is pulled out, the linkage between the first rotating rod and the first cleaning rod is contacted, the second cleaning rod is used, the second cleaning rod is driven to reciprocate up and down by the automatic lifting mechanism, and one side of the shroud is cleaned up and down by the brush; the cleaning mode of the device is various, compared with direct wiping with a cloth, dust in the end face and gaps of the ventilation machine shroud can be completely removed, and the cleaning effect is good.

[0013] In the utility model, the ventilation machine shroud is fixed by being adsorbed on the electromagnetic plate, the first cleaning rod is rotated by the rotating shaft of the first rotating rod after the motor is started, and the shroud is cleaned by the brush; or the first positioning pin is pulled out, the linkage between the first rotating rod and the first cleaning rod is contacted, the second cleaning rod is used, the second cleaning rod is driven to reciprocate up and down by the automatic lifting mechanism, and one side of the shroud is cleaned up and down by the brush; the cleaning mode of the device is various, compared with direct wiping with a cloth, dust in the end face and gaps of the ventilation machine shroud can be completely removed, and the cleaning effect is good. ACCURATE DRAWING

[0014] Figure 1 It is the structure schematic view of the utility model.

[0015] Figure 2 It is the structure schematic view of the automatic lifting mechanism of the utility model.

[0016] Figure 3 It is the front view of the fixed plate and the movable plate of the utility model.

[0017] Figure 4 It is the top view of the fixed plate and the movable plate of the utility model.

[0018] Figure 5 It is the structure schematic view in the up-and-down cleaning state of the utility model.

[0019] Figure 6 This is an accompanying drawing illustrating the usage method of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Base plate; 2. Support column; 3. Fixed plate; 4. Movable plate; 5. Limiting rod; 6. Connecting bracket; 7. First lever; 8. Second lever; 9. Motor; 10. First positioning pin; 11. First cleaning rod; 12. Second positioning pin; 13. Fixed frame; 14. Electromagnetic plate; 15. Electric telescopic rod; 16. Second cleaning rod. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] Example:

[0024] As attached Figure 1 To be continued Figure 6 As shown:

[0025] This utility model provides a cleaning device for ventilation fans in coal mine working faces, including a base plate 1, a first positioning pin 10, and a second positioning pin 12; an automatic lifting mechanism is supported on the base plate 1 by a supporting column 2, the automatic lifting mechanism including a fixed plate 3 and a movable plate 4; a sliding groove along the vertical direction is provided in the fixed plate 3, the movable plate 4 is movably connected in the sliding groove of the fixed plate 3, a folded limiting rod 5 is rotatably connected to one side of the fixed plate 3, a connecting bracket 6 is fixedly connected to one side of the fixed plate 3, and the other end of the connecting bracket 6 is fixedly connected to the base plate 1; a rotatably connected component is mounted on the connecting bracket 6. The first lever 7 and the second lever 8 are connected. The first lever 7 has a rotating shaft at one end, and the second lever 8 has a disc at one end. The disc is fitted onto the rotating shaft. One end of the rotating shaft is fixedly connected to the output end of the motor 9. The motor 9 is fixedly mounted on one side of the connecting bracket 6. The other end of the rotating shaft is rotatably connected to the first cleaning rod 11. A brush is attached to the front of the first cleaning rod 11. An n-shaped fixing frame 13 is fixedly connected to the base plate 1. An arc-shaped electromagnetic plate 14 is fixedly connected to one side of the fixing frame 13. The arc opening of the electromagnetic plate 14 faces upward. An upright electric telescopic rod 15 is fixedly connected to the base plate 1.

[0026] Among them, such as Figure 1 As shown, the center of the arc of the electromagnetic plate 14 is located on the central axis where the first lever 7's rotating shaft is located; as Figure 6 As shown, during cleaning, the bottom of the ventilator cover is attached to the electromagnetic plate 14, the front of the cover is held against the bottom by the fixing bracket 13, and the back of the cover is held against the first cleaning rod 11. The center of the cover is aligned with the rotating shaft of the first lever 7.

[0027] Among them, such asFigure 1 As shown, in the rotating cleaning state, the second positioning pin 12 simultaneously passes through the shafts of the first cleaning rod 11 and the first lever 7. The motor 9 is started, and the output end of the motor 9 rotates clockwise when viewed from the front. The first cleaning rod 11 is driven to rotate through the shaft of the first lever 7. In the rotating state, the first cleaning rod 11 cleans the ventilator cover with a brush.

[0028] Among them, such as Figure 5 As shown, in the clean state, the first positioning pin 10 simultaneously inserts into the disc of the first lever 7 and the second lever 8, and the first lever 7 and the second lever 8 cross at a 90-degree angle. After the motor 9 is started, the second lever 8 rotates together with the first lever 7.

[0029] Among them, such as Figure 2 As shown, a vertical slide bar is provided in the groove of the fixed plate 3, and a limit stop is provided on the left side of the fixed plate 3; a horizontal through hole is provided on the movable plate 4, and a vertical slot is also provided on the movable plate 4, with the slide bar confined within the slot; a boss is provided on the left side of the movable plate 4, which is engaged with the limit stop; two bosses are also provided on the right side of the movable plate 4, one above the other. Figure 5 As shown, the bottom surface of the upper boss is abutted by one end of the second lever 8. When the first lever 7 and the second lever 8 are driven to rotate by the motor 9, when the second lever 8 moves the upper boss on the right side of the movable plate 4, the movable plate 4 slides upward in the groove of the fixed plate 3 until the second lever 8 leaves the boss of the movable plate 4. Then, the movable plate 4, lacking support, falls slightly under the action of gravity until the lower boss on the right side of the movable plate 4 is blocked by the lower end of the limiting rod 5. Then, when the first lever 7 moves the upper end of the limiting rod 5, the lower end of the limiting rod 5 leaves the lower boss on the right side of the movable plate 4. The movable plate 4, lacking support, falls under the action of gravity until the lower boss on the left side of the movable plate 4 is blocked by the limiting stop of the fixed plate 3. The movable plate 4 of this automatic lifting mechanism completes one rising and falling action.

[0030] Among them, such as Figure 5 As shown, in the up-and-down cleaning state, a second cleaning rod 16 is inserted into the horizontal perforation on the movable plate 4. The second cleaning rod 16 has an arc-shaped clearance section, and a brush is attached to the front of the second cleaning rod 16. A vertical sleeve is provided at one end of the second cleaning rod 16, and it is slidably connected to the electric telescopic rod 15 through the sleeve. The second cleaning rod 16 repeatedly moves up and down with the movable plate 4, and cleans one side of the ventilator cover with the brush. During this process, the clearance section of the second cleaning rod 16 will avoid the disc of the second lever 8 to avoid motion interference.

[0031] The specific usage and function of this embodiment are as follows:

[0032] The utility model discloses a first cleaning rod 11 is rotated through the rotation axis of first dial lever 7, and first cleaning rod 11 is rotated and cleaned to ventilator shroud through the brush, or the first positioning pin 10 is inserted to the disc of first dial lever 7 and second dial lever 8 simultaneously, and the shroud is placed on the electromagnetic board 14, and the motor 9 is started, and when second dial lever 8 drives the right side upper boss of movable plate 4, movable plate 4 follows and slides in the sliding slot of fixed plate 3 and slides upwards until second dial lever 8 leaves the boss of movable plate 4, and movable plate 4 falls in the gravity action of lacking support to a small amplitude until the right side lower boss of movable plate 4 is stuck by the lower end of limiting rod 5, and when first dial lever 7 drives the upper end of limiting rod 5, the lower end of limiting rod 5 leaves the right side lower boss of movable plate 4, and movable plate 4 falls in the gravity action of lacking support until the boss of movable plate 4 is stuck by the limiting stop of fixed plate 3, and the movable plate 4 of this automatic lifting mechanism completes the action of ascending and descending once, and the movable plate 4 repeats the ascending and descending motion, and the shroud side is cleaned through the brush.

[0033] The utility model discloses not detailed, all are the known technology of the person skilled in the art.

Claims

1. A coal face ventilation fan cleaning device comprising a base plate (1), a first locating pin (10) and a second locating pin (12); characterised in that: The bottom plate (1) is supported by a support column (2) and an automatic lifting mechanism, the automatic lifting mechanism comprises a fixed plate (3) and a movable plate (4); the fixed plate (3) is provided with a sliding groove in the up-down direction, the movable plate (4) is movably connected in the sliding groove of the fixed plate (3), one side of the fixed plate (3) is rotatably connected with a folded limiting rod (5), one side of the fixed plate (3) is fixedly connected with a connecting bracket (6), the other end of the connecting bracket (6) is fixedly connected to the bottom plate (1); the connecting bracket (6) is rotatably connected with a first lever (7) and a second lever (8), one end of the first lever (7) is provided with a rotating shaft, one end of the second lever (8) is provided with a disc, the disc is sleeved on the rotating shaft, one end of the rotating shaft is fixedly connected with the output end of a motor (9), the motor (9) is fixedly installed on one side of the connecting bracket (6), the other end of the rotating shaft is rotatably connected with a first cleaning rod (11), and a brush is attached to the front of the first cleaning rod (11); the bottom plate (1) is fixedly connected with an n-shaped fixed frame (13), one side of the fixed frame (13) is fixedly connected with a circular arc-shaped electromagnetic plate (14), and the arc opening of the electromagnetic plate (14) faces upward; the bottom plate (1) is fixedly connected with a vertical electric telescopic rod (15).

2. A coal face ventilation unit cleaning device as claimed in claim 1, characterised in that: The center of the arc of the electromagnetic plate (14) is located on the central axis of the rotating shaft of the first lever (7).

3. A coal face ventilation unit cleaning device as claimed in claim 1 wherein: In the rotating cleaning state, the second positioning pin (12) penetrates the rotating shaft of the first cleaning rod (11) and the first lever (7) at the same time.

4. A coal face ventilation unit cleaning device as claimed in claim 1 wherein: In the up-down cleaning state, the first positioning pin (10) penetrates the disc of the first lever (7) and the second lever (8) at the same time, and the first lever (7) and the second lever (8) intersect at ninety degrees.

5. A coal face ventilation unit cleaning device as claimed in claim 1 wherein: The sliding groove of the fixed plate (3) is provided with a vertical sliding strip, and the left side of the fixed plate (3) is provided with a limiting stop; the movable plate (4) is provided with a horizontal perforation, and is provided with a vertical slot hole at the same time, and the sliding strip is limited in the slot hole; the left side of the movable plate (4) is provided with a boss, the boss is clamped on the limiting stop, and the right side of the movable plate (4) is also provided with two bosses in the up-down direction, and the bottom surface of the upper boss is abutted by one end of the second lever (8).

6. A coal face ventilation unit cleaning device as claimed in claim 1 wherein: In the up-down cleaning state, the second cleaning rod (16) is inserted into the horizontal perforation of the movable plate (4), the second cleaning rod (16) is provided with an arc-shaped avoiding section, and a brush is attached to the front of the second cleaning rod (16); one end of the second cleaning rod (16) is provided with a vertical sleeve and is slidably connected to the electric telescopic rod (15) through the sleeve.