Ventilation structure for downward drift type filling mining method

By using a pulley and a two-way threaded rod, the problems of dust blockage, difficulty in adjusting ventilation volume, and loose connections in the ventilation structure of the downward-entry filling mining method are solved, thereby improving ventilation efficiency and safety.

CN223447088UActive Publication Date: 2025-10-17SHANDONG GOLD MINING LINGLONG
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Patent Information

Application Number
CN202423291517.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-10-17
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

The ventilation structure of the existing down-entry backfill mining method is easily blocked by dust and impurities, the ventilation volume is not easy to adjust, the installation and operation are cumbersome, the connection is easy to loosen, which affects the ventilation efficiency and safety.

Method used

The design employs a belt pulley and a two-way threaded rod. The belt drive drives the fan blades and filter plates to filter the air, while the two-way threaded rod enables quick installation and a secure connection, preventing dust blockage and air leakage.

Benefits of technology

It effectively prevents dust blockage, allows for flexible adjustment of ventilation volume, simplifies installation, improves equipment flexibility and connection strength, and enhances ventilation efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a ventilation structure for a downward drift type filling mining method, and relates to the technical field of mining ventilation, the ventilation structure comprises a wall body, the outer wall of the top of the wall body is fixedly connected with a bottom plate, the outer wall of the top of the bottom plate is fixedly connected with a fixing frame, the inner wall of the wall body is fixedly connected with a ventilation pipe, and the ventilation pipe is fixedly connected with the bottom plate. Outdoor air is conveyed into the ventilation pipe through the belt pulley when the fan blades rotate, meanwhile, the air can pass through the filter plate, then the filter plate filters the air, dust and impurities are prevented from entering the ventilation pipe, meanwhile, the belt pulley can be driven to rotate when the rotating shaft rotates, the fan blades are driven to rotate, and the fan blades are driven to rotate. The belt pulley drives the belt pulley to rotate through the belt, the belt pulley drives the rotating rod to rotate when rotating, the flexibility of the equipment is improved, dust and impurities are prevented from blocking the equipment, unsmooth ventilation is avoided, the proper air volume can be adjusted according to the length of the ventilation pipe, and the situation that the air volume is too small to affect ventilation is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to mining ventilation technical field, especially, relate to a downward drift type filling mining method's ventilation structure. BACKGROUND

[0002] With the increasingly strict requirements of mine safety production and environmental protection, mine enterprises must ensure that the underground ventilation system meets the relevant standards. For example, the air quality of underground workplace must meet the requirements of oxygen content, harmful gas concentration limit and other requirements. This promotes mining enterprises and scientific researchers to continuously improve the ventilation structure of downward drift type filling mining method to reduce the risk of safety accidents and reduce pollution to the environment:

[0003] The existing equipment will be blocked by dust and impurities during long-term use, resulting in unsmooth ventilation. It is not convenient to adjust the ventilation volume according to the length of the ventilation pipe during use, which affects the ventilation efficiency. When the ventilation pipe is lengthened, the installation operation is complicated, which affects the work efficiency. At the same time, the connection of the ventilation pipe will be loose due to external force, which reduces the use safety. Therefore, we propose a ventilation structure of downward drift type filling mining method. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a ventilation structure of downward drift type filling mining method, which is provided with a belt disc and a bidirectional threaded rod. The problem of dust and impurities blocking the equipment during long-term use, resulting in unsmooth ventilation, is solved. It is not convenient to adjust the ventilation volume according to the length of the ventilation pipe during use, which affects the ventilation efficiency. When the ventilation pipe is lengthened, the installation operation is complicated, which affects the work efficiency. At the same time, the connection of the ventilation pipe will be loose due to external force, which reduces the use safety.

[0005] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0006] The utility model discloses a ventilation structure of downward drift type filling mining method, which is provided with a belt disc and a bidirectional threaded rod. The problem of dust and impurities blocking the equipment during long-term use, resulting in unsmooth ventilation, is solved. It is not convenient to adjust the ventilation volume according to the length of the ventilation pipe during use, which affects the ventilation efficiency. When the ventilation pipe is lengthened, the installation operation is complicated, which affects the work efficiency. At the same time, the connection of the ventilation pipe will be loose due to external force, which reduces the use safety.

[0007] The adjusting mechanism comprises a mounting frame, the outer wall of the mounting frame is fixedly connected with the inner wall of the ventilation pipe, the inner wall of the mounting frame is fixedly connected with a first motor, the bottom output shaft of the first motor is fixedly connected with a rotating shaft through a shaft coupling, the outer wall of the rotating shaft is fixedly connected with a plurality of fan blades, the outer wall of the rotating shaft is fixedly connected with a belt pulley, the outer wall of the belt pulley is drivingly connected with a belt, the inner wall of the fixed frame is rotatably connected with a rotating rod, the outer wall of the rotating rod is fixedly connected with a belt disc, the outer wall of the belt disc is drivingly connected with the inner wall of the belt, the outer wall of the rotating rod away from the wall is fixedly connected with a disc, the outer wall of the disc away from the wall is fixedly connected with a fixed rod, the outer wall of the fixed rod is rotatably connected with a connecting rod, the inner wall of the connecting rod is rotatably connected with a positioning rod, the outer wall of the positioning rod close to the wall is fixedly connected with a scraper, the outer wall of the scraper is slidingly connected with the inner wall of the plurality of sliding rails, the top outer wall of the bottom plate is fixedly connected with a plurality of fixed frames two, the inner wall of the fixed frame two is rotatably connected with a worm, the inner wall of the ventilation pipe is rotatably connected with a wind blocking rod, the outer wall of the wind blocking rod close to the fixed frame two is fixedly connected with a worm wheel, the outer wall of the worm wheel is engaged with the outer wall of the worm, and the outer wall of the ventilation pipe is provided with a mounting mechanism.

[0008] Further, the mounting mechanism comprises a plurality of U-shaped plates, the outer wall of the plurality of U-shaped plates is fixedly connected with the outer wall of the ventilation pipe, and the inner wall of each of the plurality of U-shaped plates is provided with a circular groove.

[0009] Further, the inner wall of each of the plurality of circular grooves is slidingly connected with a sliding rod, and the outer wall of each of the plurality of sliding rods is fixedly connected with a spring.

[0010] Further, the outer wall of the ventilation pipe is slidingly connected with a ventilation pipe two, and the outer wall of the ventilation pipe two close to the ventilation pipe is fixedly connected with a sealing strip.

[0011] Further, the outer wall of the ventilation pipe two is fixedly connected with a fixed ring, and the top outer wall of the fixed ring is fixedly connected with the bottom outer wall of the wall.

[0012] Further, the outer wall of the ventilation pipe two close to the ventilation pipe is fixedly connected with a plurality of supporting plates, and the inner wall of each of the plurality of supporting plates is provided with a clamping groove.

[0013] Further, the outer wall of the ventilation pipe is fixedly connected with a fixed block, and the top outer wall of the fixed block is fixedly connected with a plurality of supporting frames.

[0014] Further, the inner wall of the support frame is rotationally connected with a bidirectional threaded rod, the outer wall of the bidirectional threaded rod is fixedly connected with a rotating disc, the outer wall of the bidirectional threaded rod is threadedly connected with a plurality of connecting rods, and the outer wall of the one end of the plurality of connecting rods close to the fixed ring is fixedly connected with a fixed ring two.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model discloses a belt disc is set, when the fan blade rotates, the outdoor air is transported to the ventilation pipe, and the air will pass through the filter plate, then the filter plate filters the air, prevents dust impurity and ventilates in the ventilation pipe, and when the rotating shaft rotates, the belt pulley rotates, then the belt pulley rotates through the belt and takes the belt disc, rotates the rotating rod when the belt disc rotates, improves the equipment flexibility, prevents dust impurity from being blocked on the equipment, avoids leading to the ventilation not smooth, can adjust the appropriate air volume according to the length of ventilation pipe, avoids the influence of the small air volume on ventilation.

[0017] 2. The utility model discloses a bidirectional threaded rod is set, after inserting, the slide bar is loosened, then the slide bar is extruded by the spring, makes the slide bar move to the clamping groove, makes ventilation pipe two with the ventilation pipe connection, and there is sealing strip in the ventilation pipe two and ventilation pipe, prevents the air leakage, then can rotate the rotating disc, and the bidirectional threaded rod rotates when the rotating disc rotates, realizes quick installation, need not to carry out the complicated installation operation, makes the ventilation pipe butt joint fast, simultaneously avoids the ventilation pipe connection place to sway due to external force, makes the connecting portion firmly fixed.

[0018] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0020] Figure 1 It is the whole structure schematic view of the utility model;

[0021] Figure 2 It is the whole structure sectional view of the utility model;

[0022] Figure 3 It is the sectional view of the belt disc structure of the utility model;

[0023] Figure 4 It is the sectional view of the fixed ring structure of the utility model;

[0024] Figure 5 For the utility model Figure 4 The enlarged view of A in the middle;

[0025] Figure 6 For the utility model Figure 4 The enlarged view of B in the middle.

[0026] In the drawings, the component list represented by each sign is as follows:

[0027] 1, wall; 101, bottom plate; 102, fixed frame; 103, ventilation pipe; 104, filter plate; 2, adjusting mechanism; 201, mounting frame; 202, first motor; 203, rotating shaft; 204, fan blade; 205, belt pulley; 206, belt; 207, rotating rod; 208, belt disc; 209, disc; 210, fixed rod; 211, connecting rod; 212, positioning rod; 213, scraper; 214, slide rail; 215, fixed frame two; 216, worm; 217, windproof rod; 218, worm gear; 3, mounting mechanism; 301, U-shaped plate; 302, circular groove; 303, slide rod; 304, spring; 305, ventilation pipe two; 306, sealing strip; 307, fixed ring; 308, fixed block; 309, support frame; 310, bidirectional threaded rod; 311, rotating disc; 312, connecting rod; 313, fixed ring two; 314, support plate; 315, clamping groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] Please refer to Figures 1-6As shown, the utility model is a kind of ventilation structure of downward drift type filling mining method, including wall body 1, the top outer wall of wall body 1 is fixedly connected with bottom plate 101, the top outer wall of bottom plate 101 is fixedly connected with fixed frame 102, the inner wall of wall body 1 is fixedly connected with ventilation pipe 103, the inner wall of ventilation pipe 103 is fixedly connected with filter plate 104, filter plate 104 is fixed in ventilation pipe 103, filter plate 104 is filtered to air when ventilation pipe 103 ventilation, prevent dust impurities into ventilation pipe 103, the inner wall of ventilation pipe 103 is provided with adjusting mechanism 2, adjusting mechanism 2 includes mounting bracket 201, the outer wall of mounting bracket 201 is fixedly connected with the inner wall of ventilation pipe 103, the inner wall of mounting bracket 201 is fixedly connected with first motor 202, operator starts first motor 202, the bottom output shaft of first motor 202 is fixedly connected with rotating shaft 203 by coupling, the outer wall of rotating shaft 203 is fixedly connected with a plurality of fan blades 204, the outer wall of rotating shaft 203 is fixedly connected with belt pulley 205, when first motor 202 rotates, rotating shaft 203 is rotated, then rotating shaft 203 is rotated with multiple fan blades 204, while rotating shaft 203 is rotated with belt pulley 205, air circulation is accelerated, the outer wall of belt pulley 205 is drivingly connected with belt 206, the inner wall of fixed frame 102 is rotatably connected with rotating rod 207, the outer wall of rotating rod 207 is fixedly connected with pulley 208, the outer wall of pulley 208 is drivingly connected with the inner wall of belt 206, when belt pulley 205 rotates, pulley 208 is rotated by belt 206, then pulley 208 is rotated with rotating rod 207, energy transmission between parts is realized, the outer wall of rotating rod 207, away from the side of wall body 1, is fixedly connected with disc 209, the outer wall of disc 209, away from the side of wall body 1, is fixedly connected with fixed rod 210, the outer wall of fixed rod 210 is rotatably connected with connecting rod 211, the inner wall of connecting rod 211 is rotatably connected with positioning rod 212, when rotating rod 207 rotates, disc 209 is rotated, then disc 209 is moved with fixed rod 210, when fixed rod 210 moves, connecting rod 211 is moved, then positioning rod 212 is moved with connecting rod 211, when one part moves, other parts will also move, the outer wall of positioning rod 212, close to the side of wall body 1, is fixedly connected with scraper 213, the outer wall of scraper 213 is slidably connected with the inner wall of a plurality of slide rails 214, the top outer wall of bottom plate 101 is fixedly connected with a plurality of fixed frames two 215, when positioning rod 212 moves, scraper 213 is moved, then scraper 213 is slid in slide rail 214, it is convenient to clean filter plate 104, the inner wall of fixed frame two 215 is rotatably connected with worm 216, the inner wall of ventilation pipe 103 is rotatably connected with wind baffle 217, the outer wall of wind baffle 217, close to the side of fixed frame two 215, is fixedly connected with worm wheel 218, the outer wall of worm wheel 218 is engaged with the outer wall of worm 216,The outer wall of the ventilation pipe 103 is provided with a mounting mechanism 3. When the worm 216 rotates, the worm gear 218 rotates, and then the wind shield rod 217 rotates, facilitating the control of the air volume.

[0030] When the first motor 202 rotates, the rotating shaft 203 rotates, and then the rotating shaft 203 rotates the plurality of fan blades 204. At the same time, the rotating shaft 203 rotates the belt pulley 205, and then the belt pulley 205 rotates the belt disc 208 through the belt 206. When the belt disc 208 rotates, the rotating rod 207 rotates, and then the disc 209 rotates with the rotating rod 207. When the disc 209 rotates, the fixed rod 210 moves, and then the fixed rod 210 moves the connecting rod 211. At the same time, the positioning rod 212 moves with the connecting rod 211, and then the positioning rod 212 moves the scraper 213. Then the scraper 213 cleans the filter plate 104, avoiding the dust of the equipment from affecting the ventilation effect.

[0031] The mounting mechanism 3 includes a plurality of U-shaped plates 301, the outer walls of the plurality of U-shaped plates 301 are fixedly connected with the outer wall of the ventilation pipe 103, the inner walls of the plurality of U-shaped plates 301 are each provided with a circular groove 302, the inner walls of the plurality of circular grooves 302 are each slidably connected with a sliding rod 303, the sliding rod 303 slides in the circular groove 302, and no displacement occurs when the sliding rod 303 moves, the outer walls of the plurality of sliding rods 303 are each fixedly connected with a spring 304, the outer wall of the ventilation pipe 103 is slidably connected with a ventilation pipe two 305, the side outer wall of the ventilation pipe two 305 close to the ventilation pipe 103 is fixedly connected with a sealing strip 306, the outer wall of the ventilation pipe two 305 is fixedly connected with a fixed ring 307, the top outer wall of the fixed ring 307 is fixedly connected with the bottom outer wall of the wall body 1, and the sliding rod 303 slides in the circular groove 302, and no displacement occurs when the sliding rod 303 moves.

[0032] When the ventilation pipe two 305 is connected with the ventilation pipe 103, the supporting plate 314 moves, and the sliding rod 303 is pulled. When the sliding rod 303 is pulled, the spring 304 is compressed. When the connection is completed, the spring 304 compresses the sliding rod 303, so that the sliding rod 303 is clamped into the clamping groove 315, facilitating the installation of the equipment by the operator.

[0033] The outer wall of the ventilation pipe two 305 is fixedly connected with a plurality of support plates 314 close to the side of the ventilation pipe 103, the inner wall of the plurality of support plates 314 is provided with a clamping groove 315, the outer wall of the ventilation pipe 103 is fixedly connected with a fixed block 308, the top outer wall of the fixed block 308 is fixedly connected with a plurality of support frames 309, the bidirectional threaded rod 310 is rotatable in the support frame 309, and no displacement occurs when the bidirectional threaded rod 310 rotates, the inner wall of the support frame 309 is rotatably connected with the bidirectional threaded rod 310, the outer wall of the bidirectional threaded rod 310 is fixedly connected with a rotating disc 311, the outer wall of the bidirectional threaded rod 310 is threadedly connected with a plurality of connecting rods 312, and the outer wall of one end of the plurality of connecting rods 312 close to the fixed ring 307 is fixedly connected with a fixed ring two 313, the rotating disc 311 rotates when the bidirectional threaded rod 310 rotates, and then the bidirectional threaded rod 310 moves with the connecting rod 312, the fixed ring two 313 moves when the connecting rod 312 moves, and then the fixed ring two 313 fixes the ventilation pipe two 305.

[0034] The rotating disc 311 rotates when the bidirectional threaded rod 310 rotates, and then the bidirectional threaded rod 310 moves with the plurality of connecting rods 312, the fixed ring two 313 moves when the connecting rod 312 moves, and then the fixed ring two 313 clamps the ventilation pipe two 305, thereby enhancing the firmness of the equipment connection.

[0035] One specific application of the embodiment is:

[0036] When the staff needs to use the device, first install the device into the mine, after the installation is completed, start the first motor 202, after the first motor 202 starts, the rotating shaft 203 rotates, then the rotating shaft 203 rotates with the plurality of fan blades 204, when the fan blades 204 rotate, outdoor air is transported into the ventilation pipe 103, at the same time, the air passes through the filter plate 104, then the filter plate 104 filters the air to prevent dust impurities from entering the ventilation pipe 103, at the same time, when the rotating shaft 203 rotates, the pulley 205 rotates, then the pulley 205 rotates with the belt 206 and the pulley 208, when the pulley 208 rotates, the rotating rod 207 rotates, then the disc 209 rotates with the fixed rod 210, when the disc 209 rotates, the fixed rod 210 moves with the connecting rod 211, when the connecting rod 211 moves, the positioning rod 212 moves, at the same time, the scraper 213 moves with the positioning rod 212, when the positioning rod 212 moves, the filter plate 104 is cleaned to prevent dust impurities from blocking, at the same time, the worm 216 can be rotated, when the worm 216 rotates, the worm wheel 218 rotates, then the worm wheel 218 rotates with the wind blocking rod 217, when the wind blocking rod 217 rotates, the size of the air volume is changed, when it is needed to prolong the ventilation pipe 103, the ventilation pipe two 305 can be inserted into the ventilation pipe 103, when the ventilation pipe two 305 is inserted, the supporting plate 314 moves, at the same time, the slide rod 303 is pulled, then the slide rod 303 is extruded by the spring 304, after the insertion is completed, the slide rod 303 is released, then the slide rod 303 is extruded by the spring 304, so that the slide rod 303 moves into the clamping groove 315, so that the ventilation pipe two 305 is connected with the ventilation pipe 103, at the same time, the ventilation pipe two 305 and the ventilation pipe 103 are provided with sealing strips therebetween to prevent air leakage, then the rotating disc 311 can be rotated, when the rotating disc 311 rotates, the bidirectional threaded rod 310 rotates, then the U-shaped plate 301 moves with the plurality of connecting rods 312, when the connecting rods 312 move, the fixed ring two 313 moves, then the fixed ring two 313 fixes the ventilation pipe two 305.

[0037] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A ventilation structure for a downward-entry filling mining method, comprising a wall (1), characterized in that: The top outer wall of the wall (1) is fixedly connected to a bottom plate (101), the top outer wall of the bottom plate (101) is fixedly connected to a fixing frame (102), the inner wall of the wall (1) is fixedly connected to a ventilation pipe (103), the inner wall of the ventilation pipe (103) is fixedly connected to a filter plate (104), and the inner wall of the ventilation pipe (103) is provided with an adjustment mechanism (2); The regulating mechanism (2) comprises a mounting frame (201), the outer wall of the mounting frame (201) is fixedly connected to the inner wall of the ventilation pipe (103), the inner wall of the mounting frame (201) is fixedly connected to a first motor (202), the bottom output shaft of the first motor (202) is fixedly connected to a rotating shaft (203) via a coupling, the outer wall of the rotating shaft (203) is fixedly connected to a plurality of fan blades (204), and the outer wall of the rotating shaft (203) is fixedly connected to a pulley (205). The outer wall of the pulley (205) is connected to a belt (206) in a transmission manner, the inner wall of the fixed frame (102) is connected to a rotating rod (207) in a rotational manner, the outer wall of the rotating rod (207) is fixedly connected to a belt pulley (208), the outer wall of the belt pulley (208) is connected to the inner wall of the belt (206) in a transmission manner, the outer wall of the rotating rod (207) away from the wall (1) is fixedly connected to a disk (209), the outer wall of the disk (209) away from the wall (1) is fixedly connected to the outer wall The fixing rod (210) is fixedly connected, the outer wall of the fixing rod (210) is rotatably connected to the connecting rod (211), the inner wall of the connecting rod (211) is rotatably connected to the positioning rod (212), the outer wall of the positioning rod (212) close to the wall (1) is fixedly connected to the scraper (213), the outer wall of the ventilation pipe (103) is fixedly connected to a plurality of slide rails (214), the outer wall of the scraper (213) is slidably connected to the inner wall of the plurality of slide rails (214), and the bottom plate (103) is fixedly connected to the outer wall of the ventilation pipe (103). 1) is fixedly connected to a plurality of fixing frames (215) on the top outer wall, the inner wall of the fixing frame (215) is rotatably connected to a worm (216), the inner wall of the ventilation pipe (103) is rotatably connected to a windshield rod (217), the outer wall of the windshield rod (217) close to the fixing frame (215) is fixedly connected to a worm gear (218), the outer wall of the worm gear (218) is meshed with the outer wall of the worm gear (216), and the outer wall of the ventilation pipe (103) is provided with a mounting mechanism (3).

2. The ventilation structure of the downward-entry filling mining method according to claim 1 is characterized in that: The mounting mechanism (3) comprises a plurality of U-shaped plates (301), the outer walls of the plurality of U-shaped plates (301) being fixedly connected to the outer wall of the ventilation pipe (103), and the inner walls of the plurality of U-shaped plates (301) are each provided with a circular groove (302).

3. The ventilation structure of the downward-entry filling mining method according to claim 2 is characterized in that: The inner walls of several circular grooves (302) are slidably connected to slide bars (303), and the outer walls of several slide bars (303) are fixedly connected to springs (304).

4. The ventilation structure of the downward-entry filling mining method according to claim 3 is characterized in that: The outer wall of the ventilation pipe (103) is slidably connected to the second ventilation pipe (305), and the outer wall of the second ventilation pipe (305) close to the ventilation pipe (103) is fixedly connected to a sealing strip (306).

5. The ventilation structure of the downward-entry filling mining method according to claim 4 is characterized in that: The outer wall of the second ventilation pipe (305) is fixedly connected with a fixing ring (307), and the top outer wall of the fixing ring (307) is fixedly connected to the bottom outer wall of the wall (1).

6. The ventilation structure of the downward-entry filling mining method according to claim 5, characterized in that: A plurality of support plates (314) are fixedly connected to the outer wall of the second ventilation pipe (305) close to the ventilation pipe (103), and the inner walls of the plurality of support plates (314) are each provided with a card slot (315).

7. The ventilation structure of the downward-entry filling mining method according to claim 6, characterized in that: The outer wall of the ventilation pipe (103) is fixedly connected to a fixing block (308), and the top outer wall of the fixing block (308) is fixedly connected to a plurality of support frames (309).

8. The ventilation structure of the downward-entry filling mining method according to claim 7, characterized in that: The inner wall of the support frame (309) is rotatably connected to a bidirectional threaded rod (310), the outer wall of the bidirectional threaded rod (310) is fixedly connected to a turntable (311), the outer wall of the bidirectional threaded rod (310) is threadedly connected to a plurality of connecting rods (312), and the outer walls of one end of the plurality of connecting rods (312) close to the fixing ring (307) are fixedly connected to a fixing ring 2 (313).