CN219139110U

CN219139110U - Safety air door

Info

Publication number: CN219139110U
Application number: CN202223478580.4U
Authority: CN
Inventors: 王宏建; 王树海; 王庆雄; 吕谋
Original assignee: Shendong Coal Branch of China Shenhua Energy Co Ltd; Guoneng Shendong Coal Group Co Ltd
Current assignee: Shendong Coal Branch of China Shenhua Energy Co Ltd; Guoneng Shendong Coal Group Co Ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-06-06
Anticipated expiration: 2032-12-26

Abstract

The present utility model provides a safety damper comprising a first damper structure comprising: the door body is rotatably arranged on the wall of the mine passage; the wind shielding curtain is movably arranged at the lower end of the door body and rotates along with the door body; the wind shielding curtain is used for shielding a gap between the door body and the ground; the adjusting mechanism is arranged on the door body and rotates along with the door body; the adjusting mechanism is connected with the wind shielding curtain and used for controlling the wind shielding curtain to be close to or far away from the ground; the door body is provided with an opening state and a shielding state, in the shielding state, the door body shields the mine passage, the wind shielding curtain shields a gap between the door body and the ground, and in the opening state, the door body avoids the mine passage; the door body is switched to an open state and a shielding state through rotation, and before the door body rotates, the adjusting mechanism controls the wind shielding curtain to be far away from the ground so as to avoid friction between the wind shielding curtain and the ground. The utility model reduces the problem of air leakage of the safety air door and ensures the air tightness of the safety air door.

Description

Safety air door

Technical Field

The utility model relates to the technical field of mine safety doors, in particular to a safety air door.

Background

The underground coal mine safety air door has the functions that: the mine channel is opened and closed in time, and the wind flow passing through the tunnel (namely the mine channel) is isolated or limited, so that the requirement of the actual wind use place on the wind quantity (such as ventilation requirement) is met, and meanwhile, the underground coal mine safety air door also provides a certain protection for workers or vehicles to walk in the mine channel (such as shielding dust in a mine for the workers or vehicles). The door body of the safety air door is usually arranged on the wall of a mine channel, in order to ensure that the door body is freely opened and closed, a gap of 5mm-15mm is usually arranged between the lower end (namely the bottom) of the door body and the ground (the gap can avoid the interference of the rugged ground in a roadway to the rotation of the door body), and in order to ensure the air tightness of the safety air door, the bottom of the door body is generally provided with a wind shielding curtain, but when the safety air door is actually opened and closed (namely the door body rotates), the wind shielding curtain can rub with the ground of the roadway, the wind shielding curtain is seriously worn, the wind shielding curtain needs to be replaced frequently, and when the wind shielding curtain is locally worn, the problem of air leakage of the safety air door is also caused, and the air tightness is reduced; in addition, because the wind shielding curtain can rub with the ground of a roadway, the resistance of the safety air door is increased when the safety air door is actually opened and closed, time and labor are wasted when the safety air door is opened and closed, the efficiency is low, the problem of door clamping can be caused, and hidden danger is brought to safety production.

Disclosure of Invention

The utility model provides a safety air door, which solves the problems of large resistance of opening and closing the door and serious abrasion of the wind shielding curtain caused by friction between the wind shielding curtain and the ground when the safety air door is actually opened and closed in the prior art.

In order to solve the above problems, the present utility model provides a safety damper for use in a mine passageway, the safety damper including a first damper structure including: the door body is rotatably arranged on the wall of the mine passage; the wind shielding curtain is movably arranged at the lower end of the door body and rotates along with the door body; the wind shielding curtain is used for shielding a gap between the door body and the ground; the adjusting mechanism is arranged on the door body and rotates along with the door body; the adjusting mechanism is connected with the wind shielding curtain and used for controlling the wind shielding curtain to be close to or far away from the ground; the door body is provided with an opening state and a shielding state, in the shielding state, the door body shields the mine passage, the wind shielding curtain shields a gap between the door body and the ground, and in the opening state, the door body avoids the mine passage; the door body is switched to an open state and a shielding state through rotation, and before the door body rotates, the adjusting mechanism controls the wind shielding curtain to be far away from the ground so as to avoid friction between the wind shielding curtain and the ground.

Further, the adjusting mechanism includes: a driving part arranged on the door body; one end of the connecting part is in transmission connection with the driving part, and the other end of the connecting part is connected with one end of the wind shielding curtain; the driving part pulls the wind shielding curtain to move relative to the door body through the connecting part.

Further, the driving part comprises a transmission rod and an air cylinder for driving the transmission rod to reciprocate, the connecting part is a flexible chain or a connecting rod, and two ends of the flexible chain or the connecting rod are respectively connected with the transmission rod and the windshield.

Further, the first air door structure further comprises a hinge, one end of the hinge is fixedly arranged at the lower end of the door body, and the other end of the hinge is fixedly connected with the wind shielding curtain; the wind shielding curtain is rotatably arranged at the lower end of the door body through a hinge.

Further, the hinge is a plurality of, and a plurality of hinges interval sets up the lower extreme at the door body.

Further, the adjusting mechanism includes: a driving part arranged on the door body; the rotating shaft is connected with the driving part, the rotating shaft is rotatably arranged at the lower end of the door body, the wind shielding curtain is arranged on the rotating shaft and rotates along with the rotating shaft, and the driving part drives the wind shielding curtain to rotate relative to the door body through the rotating shaft.

Further, the first air door structure also comprises a power structure, and the power structure is connected with the door body to drive the door body to rotate relative to the wall of the mine passageway.

Further, the first damper structure further includes: the control unit is electrically connected with the power structure to control the door body to rotate; the anti-pinch sensor is electrically connected with the control unit and is used for monitoring whether the door body clamps workers in an open state or a shielding state; the inductor is electrically connected with the control unit and is used for sensing that the door body is in an open state or a shielding state.

Further, the first air door structure further comprises an auxiliary door, the door body is provided with a passing opening, and the auxiliary door is rotatably arranged on the door body to open and close the passing opening.

Further, the safety air door further comprises a second air door structure, the second air door structure is identical to the first air door structure, the second air door structure and the first air door structure are correspondingly arranged on two sides of the mine channel, and the mine channel is jointly opened and closed.

By applying the technical scheme of the utility model, the utility model provides a safety air door, which is used in a mine passage and comprises a first air door structure, wherein the first air door structure comprises: the door body is rotatably arranged on the wall of the mine passage; the wind shielding curtain is movably arranged at the lower end of the door body and rotates along with the door body; the wind shielding curtain is used for shielding a gap between the door body and the ground; the adjusting mechanism is arranged on the door body and rotates along with the door body; the adjusting mechanism is connected with the wind shielding curtain and used for controlling the wind shielding curtain to be close to or far away from the ground; the door body is provided with an opening state and a shielding state, in the shielding state, the door body shields the mine passage, the wind shielding curtain shields a gap between the door body and the ground, and in the opening state, the door body avoids the mine passage; the door body is switched to an open state and a shielding state through rotation, and before the door body rotates, the adjusting mechanism controls the wind shielding curtain to be far away from the ground so as to avoid friction between the wind shielding curtain and the ground. According to the utility model, the wind shielding curtain is controlled to be close to or far away from the ground by the adjusting mechanism, when the door body rotates, the wind shielding curtain is effectively prevented from rubbing against the ground, the wind shielding curtain is prevented from being seriously worn, the problem of air leakage of the safety air door is reduced, the air tightness of the safety air door is ensured, the safety and reliability of the safety air door are further ensured, the resistance of the safety air door during opening and closing is effectively reduced, the convenience and labor saving during opening and closing of the door are realized, and the efficiency is improved; meanwhile, the applicability of the safety air door to various terrains in a mine channel is improved, namely, the wind shielding curtain does not influence the opening and closing of the air door all the time in a rotating stroke area of the safety air door no matter the terrains are high or low; the safety air door provided by the utility model has the advantages of simple structure, convenience in installation, low cost and reliability in operation.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view showing a specific structure of a safety damper according to an embodiment of the present utility model;

FIG. 2 illustrates a side view of a portion of the structure of a safety damper provided by an embodiment of the present utility model as the adjustment mechanism controls the windward curtain away from the ground;

fig. 3 is a schematic structural view of a door body in an open state according to an embodiment of the present utility model;

fig. 4 is a schematic view showing a structure in which a prior art safety damper is in an opened state.

Wherein the above figures include the following reference numerals:

10. a door body; 11. a handle;

20. a wind shielding curtain;

30. an adjusting mechanism; 31. a driving section; 311. a transmission rod; 312. a cylinder; 313. a pipeline; 32. a connection part;

40. a hinge;

50. a sub-door;

60. and a second damper structure.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 3, an embodiment of the present utility model provides a safety damper for use in a mine passageway, the safety damper including a first damper structure comprising: the door body 10, the door body 10 is rotatably set in the wall of the mine passageway; the wind shielding curtain 20 is movably arranged at the lower end of the door body 10 and rotates along with the door body 10; the wind shielding curtain 20 is used for shielding a gap between the door body 10 and the ground; the adjusting mechanism 30 is arranged on the door body 10 and rotates along with the door body 10; the adjusting mechanism 30 is connected with the wind shielding curtain 20 and is used for controlling the wind shielding curtain 20 to be close to or far away from the ground; the door body 10 has an opening state and a shielding state, in the shielding state, the door body 10 shields a mine passage, the windshield 20 shields a gap between the door body 10 and the ground, and in the opening state, the door body 10 avoids the mine passage; the door body 10 is switched to an open state and a shielding state by rotation, and before the door body 10 rotates, the adjusting mechanism 30 controls the wind shielding curtain 20 to be far away from the ground so as to avoid friction between the wind shielding curtain 20 and the ground.

According to the utility model, the wind shielding curtain 20 is controlled to be close to or far away from the ground by the arrangement of the adjusting mechanism 30, so that when the door body 10 rotates, the wind shielding curtain 20 is effectively prevented from rubbing with the ground, the serious abrasion of the wind shielding curtain 20 is avoided, the problem of air leakage of the safety air door is reduced, the air tightness of the safety air door is ensured, the safety and reliability of the safety air door are further ensured, the resistance of the safety air door during opening and closing is effectively reduced, the convenience and the labor saving during opening and closing of the door are realized, and the efficiency is improved; meanwhile, the applicability of the safety air door to various terrains in a mine passage is improved, namely, the wind shielding curtain 20 does not influence the opening and closing of the air door all the time in a rotating stroke area of the safety air door no matter the terrains are high or low; the safety air door provided by the utility model has the advantages of simple structure, convenience in installation, low cost and reliability in operation.

Noteworthy are: in one embodiment of the present utility model, as shown in fig. 1, a handle 11 is provided on the door body 10, and by providing the handle 11, it is convenient for a worker to manually open the door body 10.

In one embodiment of the present utility model, the windshield 20 is made of a wear-resistant rubber material to ensure the windshield effect and the service life of the windshield 20.

As shown in fig. 1, the adjustment mechanism 30 includes: a driving unit 31, the driving unit 31 being provided on the door body 10; a connecting part 32, wherein one end of the connecting part 32 is in transmission connection with the driving part 31, and the other end of the connecting part 32 is connected with one end of the windshield 20; wherein the driving part 31 pulls the wind shielding curtain 20 to move relative to the door body 10 through the connecting part 32. By arranging the driving part 31 and the connecting part 32 to work cooperatively so as to pull the wind shielding curtain 20 to move relative to the door body 10, the structure of the adjusting mechanism 30 is simplified, and the working reliability of the adjusting mechanism 30 is ensured.

It should be noted that: in one embodiment of the present utility model, the driving part 31 may be provided in two ways of pulling the wind shielding curtain 20 to move relative to the door body 10 through the connection part 32, one in a way similar to pulling one end of the hinge cantilever to rotate it (for example, similar to the structure of the door panel on the ancient city gate control city river), as shown in fig. 2, pulling one end of the wind shielding curtain 20 close to the ground through the air cylinder 312 to rotate it to realize that the wind shielding curtain 20 is far away from the ground; the other is that the driving part directly drives the wind shielding curtain 20 to lift up and down relative to the door body 10 (the wind shielding curtain 20 does not rotate at the moment) so as to realize that the wind shielding curtain 20 is far away from the ground; the two modes can be flexibly selected according to the use requirement, so as to improve the applicability of the adjusting mechanism 30.

As shown in fig. 2, the driving part 31 includes a driving rod 311 and a cylinder 312 for driving the driving rod 311 to reciprocate, and the connecting part 32 is a flexible chain or a connecting rod, both ends of which are connected to the driving rod 311 and the windshield 20, respectively. By providing the air cylinder 312, the response of the adjusting mechanism 30 is ensured to be rapid, and the cost is reduced; through setting up connecting portion 32 for flexible chain or connecting rod, both guaranteed connecting portion 32 and the reliable connection of windscreen 20, guaranteed again that connecting portion 32 work is gentle, does not harm windscreen 20, and then reduces the gas tightness of safety air door.

It should be noted that: in a specific embodiment of the present utility model, as shown in fig. 1 and 2, the cylinder 312 is connected to an external air source (usually, a steam pipeline is disposed in the underground of the coal mine) through a pipeline 313, so that the power source of the cylinder 312 is ensured, the driving part 31 is suitable for the working condition without an external circuit (that is, the cylinder 312 is indirectly driven to work by electric energy), and the applicability of the driving part 31 is improved.

As shown in fig. 1, the first air door structure further includes a hinge 40, one end of the hinge 40 is fixedly disposed at the lower end of the door body 10, and the other end of the hinge 40 is fixedly connected with the windshield 20; the wind shielding curtain 20 is rotatably provided at the lower end of the door body 10 by a hinge 40. By arranging the hinge 40, the rotational freedom degree of the wind shielding curtain 20 relative to the door body 10 is guaranteed, the whole structure is simple, purchasing is convenient, and cost is reduced.

Specifically, the hinge 40 is plural, and the plural hinges 40 are disposed at intervals at the lower end of the door body 10. By providing a plurality of hinges 40, the strength of connection of the windshield 20 to the door body 10 is further ensured, and thus the rotational degree of freedom of the windshield 20 with respect to the door body 10 of a large size (e.g., thickness and length) or a large mass is ensured.

Optionally, the adjustment mechanism 30 includes: a driving unit 31, the driving unit 31 being provided on the door body 10; and a rotation shaft connected to the driving part 31, the rotation shaft being rotatably provided at a lower end of the door body 10, wherein the wind shielding curtain 20 is provided on the rotation shaft and rotates following the rotation shaft, and the driving part 31 drives the wind shielding curtain 20 to rotate relative to the door body 10 through the rotation shaft. By the arrangement, the structure of the adjusting mechanism 30 is simplified, and the adjusting mechanism 30 can quickly adjust the wind shielding curtain 20.

Specifically, the first damper structure further includes a power structure connected to the door body 10 to drive the door body 10 to rotate relative to the wall of the mine passageway. Through setting up power structure, guaranteed the automatic rotation of the door body 10, effectively replaced the manpower, labour saving and time saving.

Specifically, the first damper structure further includes: the control unit is electrically connected with the power structure to control the door body 10 to rotate; the anti-pinch sensor is electrically connected with the control unit and is used for monitoring whether the door body 10 clamps workers in an open state or a shielding state; the inductor is electrically connected with the control unit and is used for sensing that the door body 10 is in an open state or a shielding state. By arranging the control unit, the reliable control of the rotation of the door body 10 by the staff is realized; by arranging the anti-pinch sensor, the door body 10 is effectively prevented from clamping staff or foreign matters during rotation, and the safety and the working continuity are improved; by providing the sensor, a real-time perception of the state of the door 10 (i.e., in an open or occluded state) is achieved.

As shown in fig. 1, the first damper structure further includes a sub-door 50 having a passage opening formed in the door body 10, and the sub-door 50 is rotatably provided in the door body 10 to open and close the passage opening. By providing the auxiliary door 50, quick passage of staff and other objects is achieved without opening the door body 10.

As shown in fig. 1, the safety air door further comprises a second air door structure 60, the second air door structure 60 is identical to the first air door structure, the second air door structure 60 and the first air door structure are correspondingly arranged on two sides of the mine channel, and the mine channel is jointly opened and closed. Through setting up first air door structure and second air door structure 60, when guaranteeing first air door structure and second air door structure 60 bulk strength and rigidity, realized the adaptation to the mine passageway of jumbo size (e.g. big width), improved the suitability and the security of safety air door.

The safety damper proposed by the utility model is now described in detail: when the control unit receives a door opening signal, the adjusting mechanism 30 controls the wind shielding curtain 20 to be far away from the ground so as to avoid friction between the wind shielding curtain 20 and the ground, then the power structure drives the door body 10 to rotate so as to switch to an open state, as shown in fig. 3, the door body 10 is in the open state, a worker or a vehicle passes through the safety air door, when the control unit receives a door closing signal, the control unit controls the power structure to work, the power structure drives the door body 10 to reversely rotate so as to switch to a shielding state, when the door body 10 is in the shielding state, the adjusting mechanism 30 controls the wind shielding curtain 20 to be close to the ground, and finally the wind shielding curtain 20 is in close contact with the ground so as to shield a gap of 5-15mm between the lower end (namely the bottom) of the door body 10 and the ground, and the air tightness of the safety air door is ensured. As shown in fig. 4, compared with the structure of the prior art in which the safety air door is in an opened state, the wind shielding curtain 20 at the lower end of the safety air door is always rubbed with the ground of the mine passageway, so that the wind shielding curtain 20 can be worn and damaged, and meanwhile, the problem of door locking is very easy to occur because the ground of the mine passageway may be inclined ground (for example, a slope roadway working condition).

In summary, the utility model provides a safety air door, the wind shielding curtain 20 is controlled to be close to or far away from the ground by the adjusting mechanism 30, when the door body 10 rotates, friction between the wind shielding curtain 20 and the ground is effectively avoided, serious abrasion of the wind shielding curtain 20 is avoided, the problem of air leakage of the safety air door is reduced, the air tightness of the safety air door is ensured, the safety and reliability of the safety air door are further ensured, the resistance of the safety air door during opening and closing is effectively reduced, convenience and labor saving during opening and closing of the door are realized, and the efficiency is improved; meanwhile, the applicability of the safety air door to various terrains in a mine passage is improved, namely, the wind shielding curtain 20 does not influence the opening and closing of the air door all the time in a rotating stroke area of the safety air door no matter the terrains are high or low; the safety air door provided by the utility model has the advantages of simple structure, convenience in installation, low cost and reliability in operation.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A safety damper for use in a mine passageway, the safety damper comprising a first damper arrangement, the first damper arrangement comprising:

the door body (10) is rotatably arranged on the wall of the mine channel;

the wind shielding curtain (20) is movably arranged at the lower end of the door body (10) and rotates along with the door body (10); the wind shielding curtain (20) is used for shielding a gap between the door body (10) and the ground;

the adjusting mechanism (30) is arranged on the door body (10) and rotates along with the door body (10); the adjusting mechanism (30) is connected with the wind shielding curtain (20) and is used for controlling the wind shielding curtain (20) to be close to or far away from the ground;

the door body (10) is provided with an opening state and a shielding state, in the shielding state, the door body (10) shields a mine passage, the wind shielding curtain (20) shields a gap between the door body (10) and the ground, and in the opening state, the door body (10) avoids the mine passage; the door body (10) is switched between the opening state and the shielding state through rotation, and before the door body (10) rotates, the adjusting mechanism (30) controls the windshield curtain (20) to be far away from the ground so as to avoid friction between the windshield curtain (20) and the ground.

2. A safety damper according to claim 1, wherein the adjustment mechanism (30) comprises:

a driving unit (31), wherein the driving unit (31) is provided on the door body (10);

a connecting part (32), wherein one end of the connecting part (32) is in transmission connection with the driving part (31), and the other end of the connecting part (32) is connected with one end of the wind shielding curtain (20);

wherein the driving part (31) pulls the wind shielding curtain (20) to move relative to the door body (10) through the connecting part (32).

3. A safety damper according to claim 2, wherein the driving part (31) comprises a transmission rod (311) and a cylinder (312) for driving the transmission rod (311) to reciprocate, and the connecting part (32) is a flexible chain or a connecting rod, and both ends of the flexible chain or the connecting rod are respectively connected with the transmission rod (311) and the windscreen (20).

4. The safety air door according to claim 2, wherein the first air door structure further comprises a hinge (40), one end of the hinge (40) is fixedly arranged at the lower end of the door body (10), and the other end of the hinge (40) is fixedly connected with the wind shielding curtain (20); the wind shielding curtain (20) is rotatably arranged at the lower end of the door body (10) through the hinge (40).

5. The safety damper according to claim 4, wherein the number of hinges (40) is plural, and the plural hinges (40) are disposed at intervals at the lower end of the door body (10).

6. A safety damper according to claim 1, wherein the adjustment mechanism (30) comprises:

a rotating shaft connected to the driving part (31), the rotating shaft being rotatably provided at a lower end of the door body (10),

wherein the wind shielding curtain (20) is arranged on the rotating shaft and rotates along with the rotating shaft, and the driving part (31) drives the wind shielding curtain (20) to rotate relative to the door body (10) through the rotating shaft.

7. A safety damper according to claim 1, wherein the first damper arrangement further comprises a power arrangement connected to the door body (10) to drive rotation of the door body (10) relative to a wall of a mine passageway.

8. The safety damper according to claim 7, wherein the first damper structure further comprises:

the control unit is electrically connected with the power structure to control the door body (10) to rotate;

the anti-pinch sensor is electrically connected with the control unit and is used for monitoring whether the door body (10) clamps workers in the open state or the shielding state;

the inductor is electrically connected with the control unit and is used for inducing the door body (10) to be in the opening state or the shielding state.

9. The safety damper according to claim 1, wherein the first damper structure further includes a sub-door (50), the door body (10) is provided with a through opening, and the sub-door (50) is rotatably provided on the door body (10) to open and close the through opening.

10. The safety damper according to claim 1, further comprising a second damper structure (60), wherein the second damper structure (60) is identical to the first damper structure, and the second damper structure (60) and the first damper structure are correspondingly arranged on two sides of the mine passageway to jointly open and close the mine passageway.