Underground ventilation mechanism

Abstract

An underground ventilation mechanism. When the positions of air boxes (502) of an air guide suction assembly (5) are adjusted, an electric motor (602) is controlled to operate to drive a driving wheel (603) and one hollow shaft (301) to rotate, the driving wheel (603) drives a driven wheel (605) by means of a transmission belt (604) to rotate, the driven wheel (605) drives a driven gear (607) by means of a driving gear (606) to rotate, and the driven gear (607) drives the other hollow shaft to rotate, such that the two hollow shafts rotate synchronously and air guide tubes (4) are then wound; and the two hollow shafts rotate relative to each other, such that two air guide plates (501) and the two air boxes (502), which are underground, move upwards synchronously, thereby guaranteeing ventilation and dust suction operations on an operating surface at any underground height, and improving the ventilation and dust suction effects; therefore, the purposes of ventilation and dust suction are achieved by means of synchronously adjusting the position of the air guide suction assembly. A traditional method of additionally providing or removing an extension pipeline is abandoned, such that the workload is reduced, and the storage of the ventilation mechanism is also facilitated, thereby improving the operation convenience and flexibility of the ventilation mechanism.

Description

An underground ventilation mechanism Technical Field

[0001] The invention belongs to the technical field of underground ventilation, and in particular relates to an underground ventilation mechanism. Background Art

[0002] Coal mining excavation activities often occur in underground coal mines. Underground excavation work will produce a large amount of dust and various toxic and harmful gases. Therefore, underground coal mines often use ventilation to dilute and flush the dust and toxic and harmful gases on the excavation working face to purify the air on the excavation working face and meet the oxygen needs of underground workers. Local ventilators are usually used underground to supply air to the excavation working face, while dust removal equipment such as sprays are used to reduce dust on the working face.

[0003] Existing ventilation methods mostly rely on localized fans for forced-in ventilation to reduce dust and dilute toxic and hazardous gases at the working face. Due to the high wind speeds of localized fans, they often generate vortices and dust, making it difficult to achieve high-quality ventilation and air purification, which is detrimental to safe underground operations. Furthermore, as the length of the tunnel increases, the fan ducts need to be extended promptly. The overall installation and installation process is complex, significantly increasing the workload of workers at the excavation face and limiting flexibility.

[0004] In view of this, a flexible underground ventilation mechanism is proposed to solve the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects, the present invention provides an underground ventilation mechanism, which solves the problem of directly sending air to the underground working surface through a fan. Since the airflow will directly impact the underground working surface, it will cause wind disturbance and cause dust, making it difficult to achieve the purpose of high-quality ventilation and ventilation, which is not conducive to safe construction operations underground; at the same time, when carrying out ventilation, the overall construction and laying process is relatively complicated, and a large number of extension pipes need to be added according to the depth of underground operations, which makes it extremely inconvenient to subsequently dismantle the extension pipes and transfer them.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an underground ventilation mechanism, comprising a wellhead support frame, wherein the wellhead support frame is provided with two sets of vertical plates, each set of vertical plates is provided with a winding assembly, an air duct is externally clamped to the winding assembly, the bottom end of the air duct is connected to an air guide suction assembly, one end of the two winding assemblies is connected to a drive assembly, and the drive assembly is mounted on the vertical plates;

[0007] A sealed bearing is clamped at one end of the winding assembly away from the driving assembly, and an air injection assembly and a return pipe are respectively provided in the two sealed bearings. The bottom of the air injection assembly is fixed on the wellhead support frame, and a humidification assembly is provided outside the air injection assembly. The bottom end of the return pipe is connected to a filter box, which is installed on the wellhead support frame and is connected to one end of the air injection assembly.

[0008] As a further solution of the present invention: the winding assembly includes a hollow shaft, which is arranged on a group of vertical plates, and each group of vertical plates has two vertical plates. Baffles are respectively clamped on both sides of the outside of the hollow shaft. A ventilation hole is opened in the middle of the hollow shaft, the top of the air duct is clamped in the ventilation hole, the sealed bearing is clamped at one end of the hollow shaft, and the drive assembly is fixedly connected to the other end of the hollow shaft.

[0009] As a further solution of the present invention: the air guide suction assembly includes an air guide plate, one side of the air guide plate is connected to a metal shaped hose, the top of the metal shaped hose is connected to the bottom end of the air guide pipe, the inner wall of the air guide plate is clamped with an air box, the air box is arc-shaped and is connected to the metal shaped hose, and air guide grooves are respectively opened on both sides of the inner wall of the air guide plate, and the air guide grooves are arc-shaped.

[0010] As a further solution of the present invention: the driving assembly includes a fixed block, the fixed block is fixed to the vertical plate, a motor is clamped on the fixed block, the output shaft of the motor is fixedly connected to a driving wheel, and the driving wheel is fixed to one of the winding assemblies.

[0011] As a further solution of the present invention: a transmission belt is connected to the outer surface of the driving wheel, a driven wheel is connected to the inner surface of the transmission belt, a driving gear is fixedly connected to the driven wheel, the ends of the driving gear and the driven wheel are arranged on the vertical plate, a driven gear is meshed with the driving gear, and the driven gear is fixedly connected to one end of the winding assembly.

[0012] As a further solution of the present invention: the air injection assembly includes a fan, which is fixed on the wellhead support frame, the air inlet end of the fan is connected to a connecting pipe, the other end of the connecting pipe is connected to the filter box, the air outlet end of the fan is connected to a ventilation pipe, and the other end of the ventilation pipe is clamped in a sealed bearing.

[0013] As a further solution of the present invention: a one-way valve is installed at the connection between the fan and the ventilation pipe, a connecting pipe is provided outside the ventilation pipe, the bottom of the connecting pipe is connected to a support leg, and the support leg is fixed to the wellhead support frame.

[0014] As a further solution of the present invention: the humidifying component includes a humidifying tube, the bottom end of the humidifying tube is connected to the ventilation tube, and a flow valve is provided outside the humidifying tube.

[0015] As a further solution of the present invention: grooves are respectively provided on both sides of the wellhead support frame, guide wheels are respectively provided above and below the grooves, and four positioning holes are provided on the top of the wellhead support frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, two air-guiding suction assemblies are provided to respectively perform ventilation boxes to vacuum dust in the well. When the position of the air box in the air-guiding suction assembly is adjusted, the motor is controlled to drive the driving wheel and one of the hollow shafts to rotate. The driving wheel drives the driven wheel to rotate through the transmission belt, and the driven wheel drives the driven gear to rotate through the driving gear, and the driven gear drives the other hollow shaft to rotate, so that the two hollow shafts rotate synchronously and the air-guiding pipe is wound up. Due to the relative rotation of the two hollow shafts, the two air guide plates and the two air boxes in the well move upward synchronously, ensuring ventilation and dust collection work at any height working surface in the well, improving the ventilation and dust collection effect, and thus achieving the purpose of ventilation and dust collection by synchronously adjusting the position of the air-guiding suction assembly, abandoning the traditional method of adding or removing extension pipes, reducing the workload, and facilitating the storage of the ventilation mechanism, greatly improving the operational convenience and flexibility of the ventilation mechanism.

[0018] In the present invention, a fan is set up to inject gas into the hollow shaft through the ventilation pipe. Since the ventilation port on the hollow shaft is connected to the air duct, the gas can flow into one of the air boxes through the air duct and the metal shaped hose. Since the air box is designed in an arc shape and the exhausted gas can contact the air guide groove on the air guide plate, the arc-shaped air guide groove can change the flow direction of the gas, so that the gas is blown to the inside of the air box, preventing the gas from directly impacting the underground working surface to generate wind flow disturbance and cause dust, thereby achieving the purpose of high-quality ventilation. At the same time, the other air box can extract the dust-containing air in the well, so that the air enters the filter box through the air duct, the hollow shaft and the return pipe. The filter box can filter and purify the air to prevent the dust-containing gas from being directly discharged and affecting the working environment above the well.

[0019] In the present invention, a metal shaped hose is provided so that the position of the air guide plate can be turned to change the angle of the wind box, which is convenient for ventilation or dust collection at different positions of the underground working surface and improves the convenience of operation. Since dust is prone to occur in the special environment underground, water vapor can be injected into the ventilation pipe through the humidifying pipe when the flow valve is opened, thereby increasing the air humidity and absorbing dust, preventing workers from inhaling dust for a long time and causing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic diagram of the three-dimensional structure of the present invention;

[0021] FIG2 is a schematic structural diagram of the connection between the wellhead support frame and the vertical plate of the present invention;

[0022] FIG3 is a schematic structural diagram of the connection between the drive assembly and the winding assembly of the present invention;

[0023] FIG4 is a schematic structural diagram of an air injection assembly according to the present invention;

[0024] FIG5 is a schematic structural diagram of a wellhead support frame according to the present invention;

[0025] FIG6 is a schematic structural diagram of an air guide and suction assembly according to the present invention;

[0026] Figure: 1, wellhead support frame; 2, vertical plate; 3, winding assembly; 301, hollow shaft; 302, baffle plate; 303, vent; 4, air guide pipe; 5, air guide suction assembly; 501, air guide plate; 502, air box; 503, metal shaped hose; 504, air guide slot; 6, drive assembly; 601, fixing block; 602, motor; 603, driving wheel; 604, transmission belt; 605 , driven wheel; 606, driving gear; 607, driven gear; 7, sealed bearing; 8, air injection assembly; 801, fan; 802, connecting pipe; 803, ventilation pipe; 804, one-way valve; 9, connecting pipe; 10, support leg; 11, humidification assembly; 111, humidification pipe; 112, flow valve; 12, filter box; 13, return pipe; 14, groove; 15, guide wheel; 16, positioning hole. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Please refer to Figures 1-6. The present invention provides a technical solution for an underground ventilation mechanism: Example 1

[0029] As shown in Figures 1-4 and 6, an underground ventilation mechanism includes a wellhead support frame 1, two groups of vertical plates 2 are provided on the wellhead support frame 1, each group of vertical plates 2 is provided with a winding assembly 3, an air guide pipe 4 is clamped on the outside of the winding assembly 3, and the winding assembly 3 includes a hollow shaft 301, which is arranged on one group of vertical plates 2, and there are two vertical plates in each group of vertical plates 2. Baffles 302 are clamped on both sides of the outside of the hollow shaft 301, a ventilation opening 303 is opened in the middle of the hollow shaft 301, the top of the air guide pipe 4 is clamped in the ventilation opening 303, a sealed bearing 7 is clamped on one end of the hollow shaft 301, and a driving assembly 6 is fixedly connected to the other end of the hollow shaft 301;

[0030] The bottom end of the air duct 4 is connected to an air guide suction assembly 5, which includes an air guide plate 501. A metal shaped hose 503 is connected to one side of the air guide plate 501. The top of the metal shaped hose 503 is connected to the bottom end of the air duct 4. By providing the metal shaped hose 503, the position of the air guide plate 501 can be moved to change the angle of the air box 502, thereby facilitating ventilation or dust collection at different locations on the underground working surface and improving operational convenience.

[0031] The inner wall of the wind guide plate 501 is clamped with an air box 502, which is arc-shaped and connected to the metal shaped hose 503. Air guide grooves 504 are respectively provided on both sides of the inner wall of the wind guide plate 501, and the air guide grooves 504 are arc-shaped. Since the wind box 502 is arc-shaped and the exhausted gas can contact the air guide grooves 504 on the wind guide plate 501, the arc-shaped air guide grooves 504 can change the flow direction of the gas, so that the gas is blown to the inside of the wind box 502, preventing the gas from directly impacting the underground working surface and generating wind flow disturbances and causing dust, thereby achieving the purpose of high-quality ventilation.

[0032] One end of the two winding assemblies 3 is connected to a driving assembly 6, which is installed on the vertical plate 2. The driving assembly 6 includes a fixed block 601, which is fixed to the vertical plate 2. A motor 602 is clamped on the fixed block 601. The output shaft of the motor 602 is fixedly connected to a driving wheel 603, and the driving wheel 603 is fixed to one of the winding assemblies 3;

[0033] The outer cover of the driving wheel 603 is connected to a transmission belt 604, and the inner cover of the transmission belt 604 is connected to a driven wheel 605. The driven wheel 605 is fixedly connected to a driving gear 606. The ends of the driving gear 606 and the driven wheel 605 are set on the vertical plate 2. The driving gear 606 is meshed with a driven gear 607. The driven gear 607 is fixedly connected to one end of the winding component 3. The motor 602 works to drive the driving wheel 603 and one of the hollow shafts 301 to rotate. The driving wheel 603 is connected to the driving belt 603 through the driving gear 606. 604 drives the driven wheel 605 to rotate, and the driven wheel 605 drives the driven gear 607 to rotate through the driving gear 606, and the driven gear 607 drives the other hollow shaft 301 to rotate, so that the two hollow shafts 301 rotate synchronously and the air guide pipe 4 is reeled in. Due to the relative rotation of the two hollow shafts 301, the two air guide plates 501 and the two wind boxes 502 in the well move upward synchronously, ensuring ventilation and dust collection at any height working surface in the well, and improving the ventilation and dust collection effects.

[0034] The end of the winding assembly 3 away from the driving assembly 6 is clamped with a sealed bearing 7, and an air injection assembly 8 and a return pipe 13 are respectively provided in the two sealed bearings 7. The air injection assembly 8 includes a fan 801, which is fixed on the wellhead support frame 1. The air inlet end of the fan 801 is connected to a connecting pipe 802, and the other end of the connecting pipe 802 is connected to the filter box 12. The air outlet end of the fan 801 is connected to a ventilation pipe 803, and the other end of the ventilation pipe 803 is clamped in the sealed bearing 7. Since the ventilation pipe 803 and the return pipe 13 are respectively connected to the two hollow shafts 301 through the sealed bearings 7, the connection sealing is ensured while the fan 801 can normally inject or extract gas into or out of the hollow shaft 301;

[0035] The bottom of the air injection assembly 8 is fixed on the wellhead support frame 1. A humidification assembly 11 is provided outside the air injection assembly 8. The bottom end of the return pipe 13 is connected to a filter box 12. The filter box 12 is installed on the wellhead support frame 1. The filter box 12 is connected to one end of the air injection assembly 8. The air enters the filter box 12 through the air guide pipe 4, the hollow shaft 301 and the return pipe 13. The filter box 12 can filter and purify the air to prevent the dust-containing gas from being directly discharged and affecting the well working environment. Example 2

[0036] On the basis of Example 1, as shown in Figures 4 and 5, a one-way valve 804 is installed at the connection between the fan 801 and the ventilation pipe 803, and a connecting pipe 9 is provided outside the ventilation pipe 803. The bottom of the connecting pipe 9 is connected to a support leg 10, and the support leg 10 is fixed to the wellhead support frame 1. The connecting pipe 9 can be controlled to work in the process of gas passing through the ventilation pipe 803, heating the ventilation pipe 803 to increase the air temperature, which can improve the comfort of personnel when ventilating the well.

[0037] The humidification component 11 includes a humidifying tube 111, the bottom end of which is connected to the ventilation pipe 803. A flow valve 112 is provided outside the humidifying tube 111. Since dust is prone to occur in the special environment underground, water vapor can be injected into the ventilation pipe 803 through the humidifying tube 111 when the flow valve 112 is opened, thereby increasing the air humidity and absorbing dust to prevent workers from inhaling dust for a long time and causing safety hazards.

[0038] Grooves 14 are respectively provided on both sides of the wellhead support frame 1, and guide wheels 15 are respectively provided above and below the grooves 14. Four positioning holes 16 are provided on the top of the wellhead support frame 1. Because of the guide wheels 15, the air duct 4 will contact the guide wheels 15 during the movement of the air duct, so that the guide wheels 15 can roll, reducing friction and preventing the air duct 4 from rubbing against the inner wall of the wellhead support frame 1 and causing wear to the air duct 4.

[0039] From the above we know that:

[0040] By setting two air-guiding suction assemblies 5, the ventilation box 502 is used to vacuum the underground. When the position of the air box 502 in the air-guiding suction assembly 5 is adjusted, the motor 602 is controlled to drive the driving wheel 603 and one of the hollow shafts 301 to rotate. The driving wheel 603 drives the driven wheel 605 to rotate through the transmission belt 604. The driven wheel 605 drives the driven gear 607 to rotate through the driving gear 606, and the driven gear 607 drives the other hollow shaft 301 to rotate, so that the two hollow shafts 301 rotate synchronously and the air-guiding pipe is rotated. 4 is wound up, and due to the relative rotation of the two hollow shafts 301, the two air guide plates 501 and the two air boxes 502 in the well are synchronously moved upward, ensuring ventilation and dust collection at any height of the working surface in the well, and improving the ventilation and dust collection effects. Therefore, the purpose of ventilation and dust collection is achieved by synchronously adjusting the position of the air guide and suction assembly 5, abandoning the traditional method of adding or removing the extension pipeline, reducing the workload, and facilitating the storage of the ventilator 801, thereby greatly improving the operation convenience and flexibility of the ventilator 801.

[0041] By setting up a fan 801, the gas is injected into the hollow shaft 301 through the ventilation pipe 803. Since the ventilation port 303 on the hollow shaft 301 is connected with the air guide pipe 4, the gas can flow into one of the air boxes 502 through the air guide pipe 4 and the metal shaped hose 503. Since the air box 502 is designed in an arc shape, and the discharged gas can contact the air guide groove 504 on the air guide plate 501, the arc-shaped air guide groove 504 can change the flow direction of the gas, so that the gas is blown to the inside of the air box 502, preventing the gas from directly impacting the underground working surface and generating wind disturbance. It also causes dust to be raised, achieving the purpose of high-quality ventilation. At the same time, another wind box 502 can extract the air containing dust from the well, so that the air enters the filter box 12 through the air guide pipe 4, the hollow shaft 301 and the return pipe 13. The filter box 12 can filter and purify the air to prevent the dust-containing gas from being directly discharged and affecting the working environment on the well. By setting a metal shaped hose 503, the position of the air guide plate 501 can be turned to change the angle of the wind box 502, which is convenient for ventilation or dust collection at different positions of the underground working surface, thereby improving the convenience of operation.

[0042] Working principle:

[0043] When in use, the fan 801 injects gas into the hollow shaft 301 through the ventilation pipe 803. Since the ventilation port 303 on the hollow shaft 301 is connected with the air guide pipe 4, the gas can flow into one of the air boxes 502 through the air guide pipe 4 and the metal shaped hose 503. Since the air box 502 is designed to be arc-shaped and the discharged gas can contact the air guide groove 504 on the air guide plate 501, the arc-shaped air guide groove 504 can change the flow direction of the gas, so that the gas is blown to the inside of the air box 502, preventing the gas from directly impacting the underground working surface and generating wind flow disturbance and dust, thereby achieving the purpose of high-quality ventilation. At the same time, the other air box 502 can extract the dust-containing air in the well, so that the air enters the filter box 12 through the air guide pipe 4, the hollow shaft 301 and the return pipe 13, and the filter box 12 can filter and purify the air.

[0044] When the flow valve 112 is opened, water vapor can be injected into the ventilation pipe 803 through the humidifying pipe 111, thereby increasing the air humidity and absorbing dust. When adjusting the position of the air box 502 in the air guide suction assembly 5, the motor 602 is controlled to drive the driving wheel 603 and one of the hollow shafts 301 to rotate. The driving wheel 603 drives the driven wheel 605 to rotate through the transmission belt 604. The driven wheel 605 drives the driven gear 607 to rotate through the driving gear 606, and the driven gear 607 drives the other hollow shaft 301 to rotate, so that the two hollow shafts 301 rotate synchronously and the air guide pipe 4 is wound. Due to the relative rotation of the two hollow shafts 301, the two air guide plates 501 and the two air boxes 502 in the well move upward synchronously, ensuring ventilation and dust collection at any height working surface in the well.

[0045] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0047] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the descriptions with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more schemes or examples.

Claims

1. A downhole ventilation mechanism, comprising a wellhead support frame (1), characterized in that: The wellhead support frame (1) is provided with two groups of vertical plates (2), each group of vertical plates (2) is provided with a reeling assembly (3), the reeling assembly (3) is externally clamped with an air guide pipe (4), the bottom end of the air guide pipe (4) is connected to an air guide suction assembly (5), one end of the two reeling assemblies (3) is connected to a driving assembly (6), and the driving assembly (6) is installed on the vertical plate (2); The end of the winding assembly (3) away from the driving assembly (6) is clamped with a sealed bearing (7), and an air injection assembly (8) and a return pipe (13) are respectively provided in the two sealed bearings (7). The bottom of the air injection assembly (8) is fixed on the wellhead support frame (1), and a humidification assembly (11) is provided outside the air injection assembly (8). The bottom end of the return pipe (13) is connected to a filter box (12), and the filter box (12) is installed on the wellhead support frame (1). The filter box (12) is communicated with one end of the air injection assembly (8).

2. The underground ventilation mechanism according to claim 1, characterized in that: The winding assembly (3) includes a hollow shaft (301), which is arranged on a group of vertical plates (2), and each group of vertical plates (2) has two vertical plates. Baffle plates (302) are respectively clamped on both sides of the outside of the hollow shaft (301). A ventilation hole (303) is opened in the middle of the hollow shaft (301). The top end of the air guide pipe (4) is clamped in the ventilation hole (303). The sealed bearing (7) is clamped on one end of the hollow shaft (301), and the driving assembly (6) is fixedly connected to the other end of the hollow shaft (301).

3. The underground ventilation mechanism according to claim 1, characterized in that: The air guide suction assembly (5) comprises an air guide plate (501), one side of the air guide plate (501) is connected to a metal shaped hose (503), the top end of the metal shaped hose (503) is communicated with the bottom end of the air guide pipe (4), the inner wall of the air guide plate (501) is clamped with an air box (502), the air box (502) is designed to be arc-shaped and is communicated with the metal shaped hose (503), and air guide grooves (504) are respectively opened on both sides of the inner wall of the air guide plate (501), and the air guide grooves (504) are designed to be arc-shaped.

4. The underground ventilation mechanism according to claim 1, characterized in that: The driving assembly (6) comprises a fixed block (601), the fixed block (601) being fixed to the vertical plate (2), a motor (602) being clamped on the fixed block (601), an output shaft of the motor (602) being fixedly connected to a driving wheel (603), and the driving wheel (603) being fixed to one of the winding assemblies (3).

5. The underground ventilation mechanism according to claim 4, characterized in that: The driving wheel (603) is externally connected to a transmission belt (604), the transmission belt (604) is internally connected to a driven wheel (605), the driven wheel (605) is fixedly connected to a driving gear (606), the ends of the driving gear (606) and the driven wheel (605) are arranged on the vertical plate (2), the driving gear (606) is meshed with a driven gear (607), and the driven gear (607) is fixedly connected to one end of the winding assembly (3).

6. The underground ventilation mechanism according to claim 1, characterized in that: The air injection assembly (8) comprises a fan (801), the fan (801) being fixed on the wellhead support frame (1), the air inlet end of the fan (801) being connected to a connecting pipe (802), the other end of the connecting pipe (802) being connected to a filter box (12), the air outlet end of the fan (801) being connected to a ventilation pipe (803), the other end of the ventilation pipe (803) being clamped in a sealing bearing (7).

7. The underground ventilation mechanism according to claim 6, characterized in that: A one-way valve (804) is installed at the connection between the fan (801) and the ventilation pipe (803). A connecting pipe (9) is provided outside the ventilation pipe (803). A supporting leg (10) is connected to the bottom of the connecting pipe (9). The supporting leg (10) is fixed to the wellhead support frame (1).

8. The underground ventilation mechanism according to claim 7, characterized in that: The humidifying assembly (11) comprises a humidifying tube (111), the bottom end of the humidifying tube (111) is in communication with the ventilation tube (803), and a flow valve (112) is provided outside the humidifying tube (111).

9. The underground ventilation mechanism according to claim 1, characterized in that: Grooves (14) are respectively provided on both sides of the wellhead support frame (1), guide wheels (15) are respectively provided above and below the grooves (14), and four positioning holes (16) are provided on the top of the wellhead support frame (1).

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