Ventilation device for coal mine ventilation and prevention exploitation

Abstract

The utility model discloses a ventilation device for coal mine ventilation and prevention exploitation, which comprises a ventilation pipe, and a connecting frame is arranged on the inner side of the ventilation pipe; the first cavities are formed in the inner sides of the two ends of the connecting frame; the fixing structure is arranged on the inner side of the connecting frame; the cleaning structure is arranged on the inner side of the ventilation pipe; the quick release structure is arranged on the inner side of the cleaning structure; the filter screen is fixedly connected to the interior of the connecting frame; the first sliding grooves are formed in the two ends of the ventilation pipe. And the insertion grooves are formed in the inner sides of the connecting frame and the ventilation pipe. Compared with the prior art, the brush has the advantages that the cleaning effect of the brush can be improved; and the filter screen can be quickly replaced.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, specifically a ventilation device for coal mine ventilation and fire prevention. Background Technology

[0002] During coal mining, ventilation devices are needed to introduce fresh air into the mine shaft. Dust in the mine shaft can easily clog the filter screen of the ventilation device, affecting normal ventilation. Existing ventilation devices generally use vibration to dislodge the dust accumulated on the surface of the filter screen, preventing dust accumulation from affecting the air permeability of the filter screen.

[0003] The prior art patent CN221347006U discloses a ventilation device for coal mine ventilation and fire prevention, including a ventilation pipe for introducing fresh air. Support plates are fixedly connected to both ends of the outer periphery of the ventilation pipe. A through groove is formed at the top of each support plate. A threaded rod and a sliding rod are respectively installed on the two support plates through the through groove. A threaded block is threadedly connected to the threaded rod, and a slider is slidably connected to the sliding rod. A rotating rod is rotatably connected to the bottom of the threaded block, and the bottom of the rotating rod is rotatably connected to the slider. A brush rod is fixedly connected to the side of the rotating rod, and a brush for cleaning dust is provided on the side of the brush rod. A filter screen is installed on the end face of the ventilation pipe. The brush of the brush rod contacts the filter screen. The threaded block and the slider are slidably connected to the support plates on their sides. A toothed plate is rotatably connected to the rotating rod through gear meshing. This invention uses a rotating brush rod to drive the brush to clean the dust adhering to the filter screen, preventing incomplete dust removal and ensuring the filter screen's permeability.

[0004] However, existing patents have the following drawbacks:

[0005] (1) The ventilation device in the prior art uses a brush for cleaning, but the brush can only remove the floating dust stuck on the filter screen. Over time, the dust on the filter screen will be squeezed, which will lead to the need to replace the filter screen. However, replacing the filter screen is difficult and will waste a lot of time.

[0006] (2) The existing brushes cannot be replaced, which causes the brushes to become covered with dust after long-term use, resulting in the brushes losing their cleaning function. In severe cases, the dust on the brushes will stick to the filter screen.

[0007] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0008] To solve the above problems, the technical solution of this utility model is as follows: a ventilation device for coal mine ventilation and anti-dampening, including a fixed structure and a quick-release structure, which solves the problem that the existing ventilation devices use brushes for cleaning, but the brushes can only remove the floating dust stuck to the filter screen. Over time, the dust on the filter screen will be squeezed, which will require the filter screen to be replaced. However, the filter screen is difficult to replace, which will waste a lot of time. The brushes cannot be replaced, which will cause the brushes to become covered with dust after long-term use, resulting in the brushes losing their cleaning function. In severe cases, the dust on the brushes will stick to the filter screen.

[0009] Preferably, the ventilation duct has a connecting frame on its inner side;

[0010] Cavity 1, wherein cavity 1 is formed on the inner sides of both ends of the connecting frame;

[0011] A fixing structure is provided on the inner side of the connecting frame;

[0012] A cleaning structure is disposed inside the ventilation duct;

[0013] A quick-release structure is provided on the inner side of the cleaning structure;

[0014] The filter screen is fixedly connected inside the connecting frame;

[0015] Slide 1, wherein slide 1 is formed at both ends of the ventilation pipe;

[0016] The slots are located inside the upper and lower ends of the connecting frame and the ventilation duct.

[0017] Furthermore, the fixing structure includes a slide rod fixedly connected to the upper and lower ends of an inner wall of the cavity. Two sliders are slidably sleeved on the surface of the slide rod. A protrusion is fixedly connected to one end of each slider. A connecting rod is fixedly connected to the upper end of the protrusion. An insert is fixedly connected to one end of the connecting rod. The insert is inserted into the inner side of the slot.

[0018] Furthermore, a partition is fixedly connected to the inner side of the cavity, and springs are fixedly connected to both ends of the partition. One end of the springs is fixedly connected to one end of the protrusion.

[0019] Furthermore, the connecting frame has two sliding grooves at both ends, which are connected to the first sliding groove. One end of the protrusion is fixedly connected to a handle, which is slidably connected to the inner side of the second sliding groove and the first sliding groove.

[0020] Furthermore, the cleaning structure includes two connecting shells fixedly connected to the upper end of the inner wall of the ventilation duct. A motor is fixedly connected to the upper end of the connecting shell, and the motor is fixedly connected to the inner side of the upper end of the ventilation duct. A lead screw is fixedly connected to the output end of the motor, and a threaded block is threadedly connected to the surface of the lead screw. A connecting groove is opened at one end of the connecting shell, and one end of the threaded block is slidably connected to the inner side of the connecting groove. A sleeve is fixedly connected to one end of the threaded block, and a brush is provided inside the sleeve.

[0021] Furthermore, the quick-release structure includes a cavity two formed inside the sleeve. A limiting ring is placed on the upper end of the inner wall of the cavity two. A plug is fixedly sleeved on the inner side of the limiting ring. The plug is inserted into the inner side of the sleeve. A spring two is fixedly connected to the lower end of the limiting ring. The lower end of the spring two is fixedly connected to the lower end of the inner wall of the cavity two. The upper end of the plug is inserted into the inner side of one end of the brush.

[0022] The advantages of this invention compared to existing technologies are as follows:

[0023] (1) This utility model has a fixed structure. When the filter screen needs to be replaced, press down the handle, so that the handle moves downward through the first and second slide grooves, so that the slider slides relative to the slide rod, so that the protrusion slides relative to each other, so that the first spring is compressed, so that the insert block is disengaged from the slot, so that the connecting frame is disengaged from the ventilation pipe, thus allowing the filter screen to be replaced. When the filter screen needs to be installed, put the connecting frame into the ventilation pipe, align the insert block with the slot, release the handle, so that the first spring rebounds, so that the protrusion moves to both ends, so that the insert block is inserted into the slot, thus fixing the connecting frame, thus allowing the filter screen to be replaced quickly and reducing the time for filter screen replacement.

[0024] (2) This utility model has a quick-release structure. When the brush needs to be replaced, pull down the plug, so that the limiting piece moves downward, so that the spring is compressed, so that the plug is disengaged from the inside of the brush, and the brush is dragged to one end, so that the other end of the brush is disengaged from the sleeve, and the brush can be removed from the cleaning structure. When the brush needs to be installed, place one end of the brush on the innermost side of the sleeve, so that the other end of the brush can be placed inside the sleeve at the other end, and pull the plug. The spring rebounds and inserts the plug into the inside of the brush, thereby fixing the brush. The brush can be replaced, thereby improving the cleaning effect of the brush. Attached Figure Description

[0025] Figure 1 This is a three-dimensional view of the entire utility model.

[0026] Figure 2 This is a cross-sectional stereoscopic view of the utility model. Figure 1 .

[0027] Figure 3 This is a three-dimensional cross-sectional view of the fixed structure of this utility model.

[0028] Figure 4 This is a cross-sectional stereoscopic view of the utility model. Figure 2 .

[0029] Figure 5 This is an enlarged view of section A of this utility model.

[0030] As shown in the figure: 1. Ventilation duct; 2. Connecting frame; 3. Fixing structure; 301. Slide rod; 302. Slider; 303. Protrusion; 304. Connecting rod; 305. Insert block; 306. Partition plate; 307. Spring 1; 308. Slide groove 2; 309. Handle; 4. Cavity 1; 5. Cleaning structure; 501. Connecting shell; 502. Motor; 503. Lead screw; 504. Threaded block; 505. Connecting groove; 506. Sleeve; 507. Brush; 6. Quick release structure; 601. Cavity 2; 602. Limiting ring; 603. Spring 2; 604. Insert; 7. Filter screen; 8. Slide groove 1; 9. Slot. Detailed Implementation

[0031] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0032] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0033] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0034] Example 1

[0035] A ventilation device for coal mine ventilation includes: a ventilation pipe 1, a cavity 4, a fixing structure 3, a cleaning structure 5, a quick-release structure 6, a filter screen 7, a chute 8, and a slot 9. The ventilation pipe 1 has a connecting frame 2 on its inner side. When in use, the ventilation pipe 1 can ventilate the inside of the coal mine.

[0036] Cavity 4 is opened on the inner side of both ends of the connecting frame 2, fixing structure 3 is set on the inner side of the connecting frame 2, sliding groove 8 is opened on both ends of the ventilation pipe 1, and slot 9 is opened on the inner side of the upper and lower ends of the connecting frame 2 and the ventilation pipe 1. The filter 7 can be quickly replaced through fixing structure 3.

[0037] The cleaning structure 5 is located inside the ventilation duct 1. The filter 7 can be easily cleaned using the cleaning structure 5.

[0038] The quick-release structure 6 is located inside the cleaning structure 5. The brush can be replaced through the quick-release structure 6 to prevent the brush from contaminating the filter screen 7 after prolonged use.

[0039] The filter screen 7 is fixedly connected inside the connecting frame 2, and the particles inside the coal mine can be filtered through the filter screen 7.

[0040] The fixed structure 3 includes a slide rod 301 fixedly connected to the upper and lower ends of the inner wall of cavity 4. Two sliders 302 are slidably sleeved on the surface of the slide rod 301. A protrusion 303 is fixedly connected to one end of each slider 302. A connecting rod 304 is fixedly connected to the upper end of the protrusion 303. An insert block 305 is fixedly connected to one end of the connecting rod 304 and is inserted into the inner side of the slot 9. A partition 306 is fixedly connected to the inner side of cavity 4. Springs 307 are fixedly connected to both ends of the partition. One end of each spring 307 is fixedly connected to one end of the protrusion 303. The connecting frame 2 has two sliding grooves 308 at both ends, which communicate with sliding groove 8. A gripping rod 309 is fixedly connected to one end of the protrusion 303 and slidably connected to the inner sides of sliding groove 308 and sliding groove 8. During use... When replacing filter 7, press down the handle 309, causing it to move downwards through slide groove 1 8 and slide groove 2 308. This causes slider 302 to slide relative to slide rod 301, which in turn causes protrusion 303 to slide relative to each other. This compresses spring 1 307, causing insert 305 to disengage from slot 9 and connecting frame 2 to disengage from ventilation pipe 1, thus allowing filter 7 to be replaced. When installing filter 7, place connecting frame 2 into ventilation pipe 1, align insert 305 with slot 9, and release handle 309. This causes spring 1 307 to rebound, causing protrusion 303 to move to both ends, allowing insert 305 to be inserted into slot 9, thus securing connecting frame 2. This allows for quick replacement of filter 7, reducing replacement time.

[0041] The cleaning structure 5 includes two connecting shells 501 fixedly connected to the upper end of the inner wall of the ventilation pipe 1. A motor 502 is fixedly connected to the upper end of the connecting shell 501. The motor 502 is fixedly connected to the inner side of the upper end of the ventilation pipe 1. A lead screw 503 is fixedly connected to the output end of the motor 502. A threaded block 504 is threadedly connected to the surface of the lead screw 503. A connecting groove 505 is opened at one end of the connecting shell 501. One end of the threaded block 504 is slidably connected to the inner side of the connecting groove 505. A sleeve 506 is fixedly connected to one end of the threaded block 504. A brush 507 is provided inside the sleeve 506. When in use, the motor 502 is started synchronously, which causes the lead screw 503 to start rotating, which causes the threaded block 504 to start moving up and down through the connecting groove 505, which causes the sleeve 506 to start moving up and down, which causes the brush 507 to start moving up and down, thereby cleaning the filter screen 7.

[0042] The quick-release structure 6 includes a cavity 601 formed inside the sleeve 506. A limit ring 602 is placed on the upper end of the inner wall of the cavity 601. A plug 604 is fixedly sleeved on the inner side of the limit ring 602 and inserted into the inner side of the sleeve 506. A spring 603 is fixedly connected to the lower end of the limit ring 602 and the lower end of the spring 603 is fixedly connected to the lower end of the inner wall of the cavity 601. The upper end of the plug 604 is inserted into the inner side of one end of the brush 507. When the brush 507 needs to be replaced, the plug 604 is pulled down, causing the limit ring 602 to move downward, thereby compressing the spring 603 and thus releasing the plug. When the plug 604 is disengaged from the inside of the brush 507, the brush 507 is dragged to one end, thereby disengaging the other end of the brush 507 from the sleeve 506. This allows the brush 507 to be detached from the cleaning structure 5. When installing the brush 507, one end of the brush 507 is placed at the innermost side of the sleeve 506, allowing the other end of the brush 507 to be inserted into the sleeve 506 at the other end. Pulling the plug 604 causes the spring 603 to return and insert the plug 604 into the inside of the brush 507, thus securing the brush 507. This allows the brush 507 to be replaced, thereby improving its cleaning effect.

[0043] In practical use: ventilation pipe 1 can ventilate the inside of the coal mine. When the surface of filter screen 7 is clogged and needs to be replaced, filter screen 7 can be quickly replaced through fixing structure 3, improving the efficiency of filter screen 7 replacement. When brush 507 is too dirty and needs to be replaced, brush 507 can be quickly replaced through quick-release structure 6, thereby improving the cleaning effect of brush 507. Filter screen 7 can filter the air inside the coal mine.

[0044] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0045] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A ventilation device for coal mine ventilation and fire prevention, characterized in that, include: Ventilation pipe (1), the inner side of which is provided with a detachable connecting frame (2); The filter screen (7) is fixedly connected inside the connecting frame (2); A fixing structure (3) is provided on the inner side of the connecting frame (2) for locking the connecting frame (2) to the ventilation pipe (1) or unlocking it; A cleaning structure (5) is provided on the inside of the ventilation pipe (1) for cleaning the filter screen (7); A quick-release structure (6) is provided on the cleaning structure (5) to enable quick installation and removal of the brush (507) in the cleaning structure (5); The fixing structure (3) includes a cavity (4) formed on the inner sides of both ends of the connecting frame (2), a slider (302) slidably disposed in the cavity (4), and an insert (305) connected to the slider (302). The ventilation pipe (1) and the connecting frame (2) are respectively provided with slots (9) for the insert (305) to be inserted or removed. The quick-release structure (6) includes a spring-driven plug (604) disposed within a sleeve (506) of the cleaning structure (5), the plug (604) being insertable into the end of the brush (507) to secure it.

2. The ventilation device for coal mine ventilation and fire prevention according to claim 1, characterized in that: A slide rod (301) is fixedly connected inside the cavity (4), and the slider (302) is slidably sleeved on the slide rod (301); one end of the slider (302) is connected to a handle (309) through a protrusion (303), and the two ends of the ventilation pipe (1) and the corresponding positions of the connecting frame (2) are provided with a first groove (8) and a second groove (308) for the handle (309) to slide.

3. A ventilation device for coal mine ventilation and fire prevention according to claim 2, characterized in that: The cavity (4) is further provided with a partition (306), and a spring (307) is provided between the partition (306) and the protrusion (303).

4. A ventilation device for coal mine ventilation and fire prevention according to claim 1, characterized in that: The cleaning structure (5) includes a motor (502) fixed to the inner wall of the ventilation pipe (1), a lead screw (503) driven to rotate by the motor (502), a threaded block (504) threadedly engaged with the lead screw (503), and a sleeve (506) connecting the threaded block (504) and the brush (507).

5. A ventilation device for coal mine ventilation and fire prevention according to claim 4, characterized in that: The cavity 2 (601) of the quick-release structure (6) is opened inside the sleeve (506). The upper end of the plug (604) can be inserted into the hole at the end of the brush (507), and its lower end is connected to the spring 2 (603) through the limiting ring (602). The lower end of the spring 2 (603) is fixed to the bottom of the cavity 2 (601).

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