A ventilation device and method for the field of mine mining

Abstract

The present invention discloses a ventilation device and method for the field of mine mining, belonging to the technical field of mine ventilation. It includes a plurality of fixed blocks, an installation frame is connected inside the fixed blocks, and the same ventilation duct is connected inside the plurality of installation frames. An air supply component is arranged inside the ventilation duct, and a protection component is arranged on the outer peripheral side of the fixed blocks. In the present invention, by setting the protection component, when the staff has no time to escape, they can run to directly below the fixed block nearby. The lead screw seat cooperates with the sliding block to drive the protection box to move downward. When the protection box reaches the ground, the strong spring cooperates with the fixed sliding rod to drive the sliding plate to move outward, so that the sliding plate and the protection box form a circular closed space, isolating the soil during the landslide outside the closed space. Through the organic combination of mechanical linkage and intelligent control, the rapid response and reliable operation of emergency protection are realized, so that the staff can be protected during a mine accident, thereby improving the survival rate of the staff.

Description

Technical Field

[0001] The present invention belongs to the technical field of mine ventilation, and particularly relates to a ventilation device and method for the field of mine mining. Background Art

[0002] In tunnel construction such as industrial and mining areas, ventilation is an indispensable technical link. The ventilation devices in the field of mine mining are mainly used to solve problems such as air pollution, high temperature, humidity, and accumulation of harmful gases in underground mining operations, and ensure the safety of mine construction.

[0003] The document with the publication number of CN119333192A discloses a single-channel air supply type mine ventilation device. This invention relates to the technical field of mine ventilation devices. The single-channel air supply type mine ventilation device includes a ventilation pipe. One side of the ventilation pipe is fixedly connected with an air extraction pump. One end of the air extraction pump is fixedly connected with an air supply pipe. The outer surface of the air supply pipe is fixedly connected with a connecting pipe. The outer surface of the connecting pipe is provided with an air outlet groove. One end of the connecting pipe is fixedly connected with a cleaning mechanism. Through the provided cleaning mechanism, when the air supply type ventilation device ventilates the mine, it needs to extract air from the outside and enter the mine. However, when extracting air, dust and cotton wool from the outside will enter the ventilation device and block the ventilation area. The cleaning mechanism is used to clean the dust at the ventilation port during air supply. Cleaning the dust can reduce the concentration of suspended particulate matter in the air, improve the air quality in the mine, and reduce the risk of workers' respiratory diseases and other health problems. However, in the actual use process, when disasters such as cave-ins occur in the mine, there is a lack of protection for the staff, resulting in a low survival rate for the staff who are too late to evacuate. Therefore, improvements are needed. Summary of the Invention

[0004] The purpose of the present invention is to propose a ventilation device and method for the field of mine mining to solve the problem that when disasters such as cave-ins occur in the mine, there is a lack of protection for the staff, resulting in a low survival rate for the staff who are too late to evacuate.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A ventilation device for the field of mine mining includes a plurality of fixing blocks. An installation frame is connected inside the fixing blocks. The same ventilation pipe is connected inside the plurality of installation frames. An air supply component is arranged inside the ventilation pipe. A protection component is arranged on the outer peripheral side of the fixing blocks. Stabilizing components are arranged on both sides of the protection component;

[0007] The protective assembly includes two symmetrically arranged protective boxes, which are slidably connected to the fixed block, and a sliding plate is slidably connected to the protective box. A plurality of sliding holes distributed in a linear array are opened on one side of the sliding plate, and a fixed sliding rod is slidably connected in the sliding hole. The other end of the fixed sliding rod is connected to one side of the inner wall of the protective box, and a strong spring is sleeved on the outer surface of the fixed sliding rod. The two ends of the strong spring are respectively connected to one side of the sliding plate and one side of the inner wall of the protective box. After the protective box falls, the sliding plate is automatically triggered to slide out of the protective box and form a circular protective space with the protective box.

[0008] As a further description of the above technical solution:

[0009] There are travel grooves on both sides of the fixed block, and a lifting screw is rotatably connected in the travel groove. The outer surface of the lifting screw is transmission-connected to a screw seat, and one side of the screw seat is connected to one side of the protective box. There are two sliding grooves symmetrically provided on both sides of the fixed block, and two symmetrically arranged sliding blocks are connected to the inner side of the protective box, and the sliding blocks are slidably connected to the sliding grooves.

[0010] As a further description of the above technical solution:

[0011] A blocking block for limiting the sliding plate is provided on one side of the protection box, and one end of the blocking block is connected to one side of the fixing block.

[0012] As a further description of the above technical solution:

[0013] The driving motor is fixedly installed on the top of the fixed block through a mounting plate, one end of the lifting screw extends to the outside of the travel slot and is connected to one end of the output shaft of the driving motor, two symmetrically arranged reinforcing plates are connected to the outer peripheral side of the protective box, and a plurality of reinforcing columns are connected to the outer peripheral side of the sliding plate, and the cross-sectional shapes of the protective box and the sliding plate are both arc-shaped.

[0014] As a further description of the above technical solution:

[0015] The stabilizing assembly includes an outer shell, one side of the outer shell is connected to one side of the protective box, a mounting rod is connected inside the outer shell, the center position of the mounting rod is rotatably connected to a rotating rod, the bottom of the rotating rod is connected to a moving screw, the outer surface of the moving screw is transmission-connected to a stabilizing spike, the stabilizing spike is slidably connected to the outer shell, one end of the rotating rod extends to the other side of the mounting rod and is connected to a driving gear, one side of the driving gear extends into the protective box, one side of the driving gear is meshed with an arc-shaped rack, one side of the arc-shaped rack is connected to one side of the sliding plate, sliding grooves are provided on both sides of the stabilizing spike, a slider is slidably connected in the sliding groove, and the slider is connected to the inner wall of the outer shell.

[0016] As a further description of the above technical solution:

[0017] One side of the stabilizing stud is connected with a fixing plate. One side of the fixing plate is connected with a plurality of limiting plates distributed in a linear array. One side of the fixing plate is attached to a pushing plate. One side of the pushing plate is connected with a mounting frame. One side of the mounting frame is rotatably connected with a bolt. One end of the bolt is connected with a limiting circular plate. One end of the bolt extends to the outside of the outer shell and is connected with a knob. One side of the outer shell is connected with a threaded seat. The bolt is in threaded connection with the threaded seat. One side of the pushing plate is connected with two symmetrically arranged telescopic rods. The end of the telescopic rod far from the pushing plate is connected with one side of the inner wall of the outer shell. The outer surface of the telescopic rod is sleeved with a first spring. Two ends of the first spring are respectively connected with one side of the pushing plate and one side of the inner wall of the outer shell.

[0018] As a further description of the above technical solution:

[0019] The air supply assembly includes an air supply pipe for supplying air. The bottom of the air supply pipe is communicated with a plurality of delivery pipes. The other end of the delivery pipe extends to the other side of the fixed block. The outer surface of the air supply pipe is connected with a plurality of fixing rings. The periphery of each fixing ring is connected with a second spring. The other end of the second spring is connected with the inner wall of the ventilation duct.

[0020] As a further description of the above technical solution:

[0021] Two symmetrically arranged storage boxes are arranged inside the fixed block. The bottom of the storage box is communicated with a connecting pipe. The other end of the connecting pipe extends to the other side of the fixed block. And a sealing cover is arranged at one end of the connecting pipe.

[0022] As a further description of the above technical solution:

[0023] One end of the ventilation duct is communicated with a fan. The top of the fixed block is connected with a plurality of connecting frames.

[0024] A ventilation method for the mining field of mines specifically includes the following steps:

[0025] S1. Install the ventilation duct in the mine shaft, and conduct ventilation treatment in the mine shaft through the ventilation duct, so as to ensure the air circulation in the mine shaft;

[0026] S2. When a mine shaft collapse occurs and the staff has no time to escape, they run to directly below the fixed block nearby. After being triggered, the protection box moves downward. When the protection box lands on the ground, the strong spring cooperates with the fixed sliding rod to drive the sliding plate to move outward, so that the sliding plate and the protection box form a circular closed space;

[0027] S3. During the movement of the sliding plate, drive the stable assembly to operate, so that the stable assembly penetrates into the ground;

[0028] S4. When the staff stay in the enclosed space formed by the protective box and the sliding plate, the air supply component conveys air to the inside to ensure the survival requirements of the staff.

[0029] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0030] 1. In the present invention, by setting the protection component, when the staff have no time to escape, they can run to directly below the fixed block nearby. The lead screw seat cooperates with the sliding block to drive the protective box to move downward. When the protective box lands on the ground, the strong spring cooperates with the fixed slide bar to drive the sliding plate to move outward, so that the sliding plate and the protective box form a circular enclosed space, isolating the soil during the collapse outside the enclosed space. Through the organic combination of mechanical linkage and intelligent control, the rapid response and reliable operation of emergency protection are realized, so that the staff can be protected during a mine accident, thereby increasing the survival rate of the staff.

[0031] 2. In the present invention, the sliding plate drives the stable spiked nails to move downward through the arc-shaped rack, driving gear, rotating rod and moving lead screw. And when the stable spiked nails move downward, the stable spiked nails drive the fixed plate to move, the fixed plate drives the limit plate to move, and the limit plate drives the push plate to move to one side during the movement and prevents the limit plate from moving back, ensuring that the stable spiked nails can penetrate into the mine ground, improving the connection tightness between the protective box and the sliding plate and the ground, thereby ensuring the stability of the protective box, improving the anti-tipping and compressive resistance of the protective box, thus improving the overall protection performance of the device and the protection ability for the internal personnel.

[0032] 3. In the present invention, when the staff stay in the enclosed space formed by the protective box and the sliding plate, in order to ensure the survival of the staff, the ventilation pipe and the connecting pipe will supply air to the enclosed space formed by the protective box and the sliding plate. The cooperation of the fixed ring and the second spring improves the telescopic toughness of the ventilation pipe, reduces the possibility of the ventilation pipe breaking, ensures the air supply. At the same time, in one of the two storage boxes, spare air is stored as an emergency backup when the ventilation pipe breaks, and in the other, spare water sources are stored to provide what is needed for the staff to survive, increasing the survival rate of the staff when they encounter a mine accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is the overall three-dimensional structure schematic diagram of the present invention;

[0034] Figure 2 is the three-dimensional structure schematic diagram of another perspective of the present invention;

[0035] Figure 3 is the partial three-dimensional structure schematic diagram of the present invention;

[0036] Figure 4 is the partial three-dimensional split structure schematic diagram of the present invention;

[0037] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure of part A in

[0038] Figure 6 Schematic diagram of the three-dimensional sectional structure of the protection component of the present invention;

[0039] Figure 7 Schematic diagram of the three-dimensional sectional structure of the stability component of the present invention;

[0040] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of part B in

[0041] Figure 9 Partial three-dimensional structure diagram of the stability component of the present invention.

[0042] Legend description:

[0043] 1. Fan; 2. Ventilation duct; 3. Protection component; 301. Protection box; 302. Reinforcing plate; 303. Driving motor; 304. Slide block; 305. Lead screw seat; 306. Slide groove; 307. Stroke groove; 308. Lifting lead screw; 309. Slide plate; 310. Reinforcing column; 311. Fixed slide bar; 312. Strong spring; 313. Blocking block; 4. Stability component; 401. Outer shell; 402. Arc-shaped rack; 403. Driving gear; 404. Mounting rod; 405. Moving lead screw; 406. Slide groove; 407. Slide block; 408. Stability spike; 409. Fixed plate; 410. Limiting plate; 411. Pushing plate; 412. Limiting circular plate; 413. Bolt; 414. Threaded seat; 415. Knob; 416. Telescopic rod; 417. First spring; 5. Connecting frame; 6. Mounting frame; 7. Fixed block; 8. Air supply component; 801. Delivery pipe; 802. Connecting pipe; 803. Storage tank; 804. Vent pipe; 805. Fixed ring; 806. Second spring. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] Please refer to Figures 1-9 , the present invention provides a technical solution:

[0046] A ventilation device for the field of mine mining, comprising a plurality of fixing blocks 7. An installation frame 6 is connected inside the fixing block 7. The same ventilation duct 2 is connected inside the plurality of installation frames 6. An air supply component 8 is arranged inside the ventilation duct 2. A protection component 3 is arranged on the outer peripheral side of the fixing block 7. Stabilizing components 4 are arranged on both sides of the protection component 3. One end of the ventilation duct 2 is communicated with a fan 1. A plurality of connecting frames 5 are connected to the top of the fixing block 7.

[0047] The protection component 3 includes two symmetrically arranged protection boxes 301. The protection box 301 is slidably connected to the fixing block 7. A sliding plate 309 is slidably connected inside the protection box 301. A plurality of sliding holes arranged in a linear array are formed on one side of the sliding plate 309. A fixed sliding rod 311 is slidably connected inside the sliding hole. The other end of the fixed sliding rod 311 is connected to one side of the inner wall of the protection box 301. A strong spring 312 is sleeved on the outer surface of the fixed sliding rod 311. Two ends of the strong spring 312 are respectively connected to one side of the sliding plate 309 and one side of the inner wall of the protection box 301. After the protection box 301 drops, the sliding plate 309 is automatically triggered to slide out of the protection box 301 and form a circular protection space with the protection box 301. Stroke grooves 307 are formed on both sides of the fixing block 7. A lifting lead screw 308 is rotatably connected inside the stroke groove 307. A lead screw seat 305 is drivingly connected to the outer surface of the lifting lead screw 308. One side of the lead screw seat 305 is connected to one side of the protection box 301. Two sliding grooves 306 are symmetrically formed on both sides of the fixing block 7. Two symmetrically arranged sliding blocks 304 are connected to the inner side of the protection box 301. The sliding block 304 is slidably connected to the sliding groove 306. A blocking block 313 for limiting the sliding plate 309 is arranged on one side of the protection box 301. One end of the blocking block 313 is connected to one side of the fixing block 7. A driving motor 303 is fixedly installed on the top of the fixing block 7 through a mounting plate. One end of the lifting lead screw 308 extends outside the stroke groove 307 and is connected to one end of the output shaft of the driving motor 303. Two symmetrically arranged reinforcing plates 302 are connected to the outer peripheral side of the protection box 301. A plurality of reinforcing columns 310 are connected to the outer peripheral side of the sliding plate 309. The cross-sectional shapes of the protection box 301 and the sliding plate 309 are both arc-shaped.

[0048] The implementation method is specifically as follows: The staff installs the entire device inside the mine. Under normal circumstances, the fan 1 conducts ventilation treatment into the mine through the ventilation duct 2 to ensure the air circulation in the mine. When a mine collapse occurs and the staff has no time to escape, they run to directly below the fixed block 7. The driving motor 303 drives the lifting lead screw 308 to rotate, and the lifting lead screw 308 drives the lead screw seat 305 to move downward. The lead screw seat 305 cooperates with the sliding block 304 to drive the protection box 301 to move downward. When the protection box 301 reaches the ground, the blocking block 313 releases the limit on the sliding plate 309. At this time, the strong spring 312 cooperates with the fixed sliding rod 311 to drive the sliding plate 309 to move outward, so that the sliding plate 309 and the protection box 301 form a circular closed space to protect the staff, isolating the soil during the collapse outside the closed space. Through the organic combination of mechanical linkage and intelligent control, the rapid response and reliable operation of emergency protection are realized, so that the staff can be protected during a mine accident, thereby increasing the survival rate of the staff. The setting of the reinforcing column 310 and the reinforcing plate 302 improves the impact resistance of the sliding plate 309 and the protection box 301, thereby enhancing the protection ability of the sliding plate 309 and the protection box 301 and making the internal staff safer. The setting of the sliding block 304 and the sliding groove 306 can ensure the stability of the movement of the protection box 301, avoid dislocation, and thus ensure the complete formation of the protection space, improving the overall protection performance of the device.

[0049] The stable component 4 includes a housing 401. One side of the housing 401 is connected to one side of the protective box 301. An installation rod 404 is connected inside the housing 401. A rotating rod is rotatably connected to the central position of the installation rod 404. A moving lead screw 405 is connected to the bottom of the rotating rod. A stable stud 408 is drivingly connected to the outer surface of the moving lead screw 405. The stable stud 408 is slidably connected to the housing 401. One end of the rotating rod extends to the other side of the installation rod 404 and is connected to a driving gear 403. One side of the driving gear 403 extends into the protective box 301. An arc-shaped rack 402 is meshingly connected to one side of the driving gear 403. One side of the arc-shaped rack 402 is connected to one side of the sliding plate 309. Chutes 406 are opened on both sides of the stable stud 408. Sliders 407 are slidably connected in the chutes 406. The sliders 407 are connected to the inner wall of the housing 401. One side of the stable stud 408 is connected to a fixing plate 409. A plurality of limiting plates 410 distributed in a linear array are connected to one side of the fixing plate 409. A pushing plate 411 is attached to one side of the fixing plate 409. An installation frame is connected to one side of the pushing plate 411. A bolt 413 is rotatably connected to one side of the installation frame. A limiting circular plate 412 is connected to one end of the bolt 413. One end of the bolt 413 extends outside the housing 401 and is connected to a knob 415. A threaded seat 414 is connected to one side of the housing 401. The bolt 413 is threadedly connected to the threaded seat 414. Two symmetrically arranged telescopic rods 416 are connected to one side of the pushing plate 411. The ends of the telescopic rods 416 away from the pushing plate 411 are connected to one side of the inner wall of the housing 401. A first spring 417 is sleeved on the outer surface of the telescopic rods 416. The two ends of the first spring 417 are respectively connected to one side of the pushing plate 411 and one side of the inner wall of the housing 401.

[0050] The specific implementation method is as follows: During the movement of the sliding plate 309, the sliding plate 309 drives the arc-shaped rack 402 to move. The arc-shaped rack 402 drives the driving gear 403 to rotate. The driving gear 403 drives the rotating rod to rotate. The rotating rod drives the moving lead screw 405 to rotate. The moving lead screw 405 drives the stable stud 408 to move downward. And when the stable stud 408 moves downward, the stable stud 408 drives the fixing plate 409 to move. The fixing plate 409 drives the limiting plates 410 to move. During the movement of the limiting plates 410, they drive the pushing plate 411 to move to one side and prevent the limiting plates 410 from moving back, ensuring that the stable stud 408 can penetrate into the mine floor, thereby ensuring the stability of the protective box 301, improving the connection tightness between the protective box 301 and the sliding plate 309 and the ground, thereby ensuring the stability of the protective box 301, improving the anti-tipping and compressive resistance of the protective box 301, thereby improving the overall protection performance of the device and enhancing the protection ability for the internal personnel.

[0051] The air supply assembly 8 includes an air pipe 804 for air supply. A plurality of delivery pipes 801 are connected to the bottom of the air pipe 804. The other ends of the delivery pipes 801 extend to the other side of the fixed block 7. A plurality of fixing rings 805 are connected to the outer surface of the air pipe 804. A plurality of second springs 806 are connected to the periphery of the fixing rings 805. The other ends of the second springs 806 are connected to the inner wall of the ventilation duct 2. Two symmetrically arranged storage boxes 803 are arranged inside the fixed block 7. A connecting pipe 802 is connected to the bottom of the storage box 803. The other end of the connecting pipe 802 extends to the other side of the fixed block 7. And a cover is arranged at one end of the connecting pipe 802.

[0052] The specific implementation method is as follows: When the staff stays in the enclosed space formed by the protective box 301 and the sliding plate 309, in order to ensure the survival of the staff, the air pipe 804 and the connecting pipe 802 will supply air to the enclosed space formed by the protective box 301 and the sliding plate 309. The cooperation of the fixing ring 805 and the second spring 806 improves the telescopic toughness of the air pipe 804 and reduces the possibility of the air pipe 804 breaking, ensuring the air supply. At the same time, one side of the two storage boxes 803 stores spare air as an emergency backup when the air pipe 804 breaks, and the other side stores spare water sources to provide the necessary survival resources for the staff, improving the survival rate of the staff in case of a mine accident. By setting the cover, the air and water sources in the storage box 803 can be sealed, and through the detachable setting of the cover, it is ensured that the internal personnel can take and use them at any time, improving the survival probability of the internal personnel.

[0053] A ventilation method for the field of mine mining specifically includes the following steps:

[0054] S1. Install the ventilation duct 2 in the mine and conduct ventilation treatment through the ventilation duct 2 to ensure the air circulation in the mine.

[0055] S2. When a mine collapse occurs and the staff has no time to escape, they run to directly below the fixed block 7. After being triggered, the protective box 301 moves downward. When the protective box 301 reaches the ground, the strong spring 312 and the fixed sliding rod 311 cooperate to drive the sliding plate 309 to move outward, so that the sliding plate 309 and the protective box 301 form a circular enclosed space.

[0056] S3. During the movement of the sliding plate 309, drive the stable assembly 4 to operate, so that the stable assembly 4 penetrates into the ground.

[0057] S4. When the staff stays in the enclosed space formed by the protective box 301 and the sliding plate 309, the air supply assembly 8 supplies air to the inside to ensure the survival requirements of the staff.

[0058] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A ventilation device for the field of mine mining, including a plurality of fixed blocks (7), characterized in that, An installation frame (6) is connected inside the fixed block (7), and the same ventilation duct (2) is connected inside multiple installation frames (6). An air supply component (8) is arranged inside the ventilation duct (2). A protection component (3) is arranged on the outer peripheral side of the fixed block (7), and stability components (4) are arranged on both sides of the protection component (3); The protection component (3) includes two symmetrically arranged protection boxes (301). The protection boxes (301) are slidably connected to the fixed block (7). A sliding plate (309) is slidably connected inside the protection boxes (301). A plurality of sliding holes distributed in a linear array are formed on one side of the sliding plate (309). A fixed sliding rod (311) is slidably connected inside the sliding holes. The other end of the fixed sliding rod (311) is connected to one side of the inner wall of the protection box (301). A powerful spring (312) is sleeved on the outer surface of the fixed sliding rod (311). Both ends of the powerful spring (312) are respectively connected to one side of the sliding plate (309) and one side of the inner wall of the protection box (301). After the protection box (301) drops, the sliding plate (309) is automatically triggered to slide out of the protection box (301) and form a circular protection space with the protection box (301); A blocking block (313) for limiting the sliding plate (309) is arranged on one side of the protection box (301). One end of the blocking block (313) is connected to one side of the fixed block (7); The stability component (4) includes an outer shell (401). One side of the outer shell (401) is connected to one side of the protection box (301). An installation rod (404) is connected inside the outer shell (401). A rotating rod is rotatably connected to the central position of the installation rod (404). A moving lead screw (405) is connected to the bottom of the rotating rod. A stability stud (408) is drivingly connected to the outer surface of the moving lead screw (405). The stability stud (408) is slidably connected to the outer shell (401). One end of the rotating rod extends to the other side of the installation rod (404) and is connected to a driving gear (403). One side of the driving gear (403) extends into the protection box (301). An arc-shaped rack (402) is meshingly connected to one side of the driving gear (403). One side of the arc-shaped rack (402) is connected to one side of the sliding plate (309). Chute grooves (406) are formed on both sides of the stability stud (408). Sliding blocks (407) are slidably connected inside the chute grooves (406). The sliding blocks (407) are connected to the inner wall of the outer shell (401); One side of the stabilizing spike (408) is connected to a fixing plate (409), one side of the fixing plate (409) is connected to a plurality of limiting plates (410) distributed in a linear array, one side of the fixing plate (409) is attached to a pushing plate (411), one side of the pushing plate (411) is connected to a mounting frame, one side of the mounting frame is rotatably connected to a bolt (413), one end of the bolt (413) is connected to a limiting circular plate (412), one end of the bolt (413) extends to the outside of the outer shell (401) and is connected to a knob (415), One side of the outer shell (401) is connected to a threaded seat (414), and the bolt (413) is threadedly connected to the threaded seat (414). One side of the push plate (411) is connected to two symmetrically arranged telescopic rods (416), and one end of the telescopic rod (416) away from the push plate (411) is connected to one side of the inner wall of the outer shell (401). A first spring (417) is sleeved on the outer surface of the telescopic rod (416), and two ends of the first spring (417) are respectively connected to one side of the push plate (411) and one side of the inner wall of the outer shell (401).

2. The ventilation device for the mine mining field according to claim 1, wherein, Both sides of the fixed block (7) are provided with travel grooves (307), a lifting screw (308) is rotatably connected in the travel groove (307), the outer surface of the lifting screw (308) is transmission-connected to a screw seat (305), one side of the screw seat (305) is connected to one side of the protective box (301), two sliding grooves (306) are symmetrically provided on both sides of the fixed block (7), the inner side of the protective box (301) is connected to two symmetrically arranged sliding blocks (304), and the sliding blocks (304) are slidably connected to the sliding grooves (306).

3. The ventilation device for the mine mining field according to claim 2, wherein, A driving motor (303) is fixedly mounted on the top of the fixed block (7) via a mounting plate. One end of the lifting screw (308) extends to the outside of the travel slot (307) and is connected to one end of the output shaft of the driving motor (303). Two symmetrically arranged reinforcing plates (302) are connected to the outer periphery of the protection box (301). A plurality of reinforcing columns (310) are connected to the outer periphery of the sliding plate (309). The cross-sections of the protection box (301) and the sliding plate (309) are both arc-shaped.

4. A ventilation device for the field of mine mining according to claim 1, characterized in that, The air supply assembly (8) includes a vent pipe (804) for supplying air, wherein the bottom of the vent pipe (804) is connected to a plurality of delivery pipes (801), the other end of the delivery pipe (801) extends to the other side of the fixed block (7), the outer surface of the vent pipe (804) is connected to a plurality of fixing rings (805), and the fixing rings (805) are connected to second springs (806) on all sides, and the other end of the second spring (806) is connected to the inner wall of the ventilation duct (2).

5. The ventilation device for the mine mining field according to claim 4, wherein, Two symmetrically arranged storage boxes (803) are provided inside the fixed block (7), and a connecting pipe (802) is connected to the bottom of the storage box (803). The other end of the connecting pipe (802) extends to the other side of the fixed block (7), and a sealing cover is provided at one end of the connecting pipe (802).

6. The ventilation device for the mine mining field according to claim 1, characterized in that, One end of the ventilation duct (2) is connected to a fan (1), and a plurality of connecting frames (5) are connected to the top of the fixed block (7).

7. A ventilation method for the field of mine mining, characterized in that, Applied to a ventilation device for the mining field as described in any one of claims 1-6, specifically including the following steps: S1. Install the ventilation duct (2) in the mine, and ventilate the mine through the ventilation duct (2) to ensure the air circulation in the mine; S2. When a mine collapse occurs and the staff has no time to escape, they run to directly below the fixed block (7). After being triggered, the protection box (301) moves downward. When the protection box (301) reaches the ground, the strong spring (312) cooperates with the fixed sliding rod (311) to drive the sliding plate (309) to move outward, so that the sliding plate (309) and the protection box (301) form a circular closed space; S3. During the movement of the sliding plate (309), drive the stable component (4) to operate, so that the stable component (4) penetrates into the ground; S4. When the staff stays in the closed space formed by the protection box (301) and the sliding plate (309), the air supply component (8) supplies air to the inside to ensure the survival requirements of the staff.

Images