Device for quickly separating air flow

Abstract

The utility model relates to the technical field of coal mine operation protection equipment, in particular to a rapid air flow partition device which comprises two metal plates, a steel wire rope, a fixing frame, a connecting plate, a first magnetic block, a magnetic plate, an electromagnetic block, a second magnetic block, a handle, a hinge assembly, a hanging assembly and a sealing assembly. A sealing assembly is arranged on the side face of the metal plate, a steel wire rope is arranged on one side of the metal plate, a hanging assembly is arranged at one end of the steel wire rope, and a fixing frame is arranged on one side of the metal plate. The principle that like poles of an electromagnetic structure are mutually exclusive is adopted, automatic turning and closing are achieved, meanwhile, a double-face openable structure is adopted, trapped persons can push away the magnetic attraction connecting plate only by slightly pulling the handle, the single-side escape time is shortened, magnetic force is automatically reset after closing, the partition effect is guaranteed, and in the coal mine fire emergency scene, the safety of the trapped persons is guaranteed. And meanwhile, the requirements of quick partition and emergency escape are met, and the operation safety is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the technical field of protective equipment for coal mine operations, and in particular to a device for quickly cutting off airflow. Background Technology

[0002] In coal mine roadway operations, in order to prevent the spread of harmful gases caused by accidents such as fires and gas explosions, it is necessary to quickly construct airflow isolation structures. Traditional isolation devices mainly use pneumatic isolation doors, which rely on compressed air to drive the door to close.

[0003] However, in the early stages of a fire, it is necessary to quickly complete the isolation. Traditional devices cannot meet the requirements due to mechanical transmission delays or manual operation lags. Furthermore, the pneumatic isolation doors of traditional devices have a one-way opening structure, which prevents trapped personnel from quickly breaking through the isolation side, potentially delaying the opportunity for self-rescue.

[0004] Therefore, to address the aforementioned issues, a rapid airflow isolation device is proposed. This device employs the principle of mutual repulsion between like magnetic poles in an electromagnetic structure to achieve automatic flipping and closure. It also features a double-sided openable structure, allowing trapped personnel to easily push open the magnetic connecting plate by simply pulling the handle, thus shortening escape time on one side. Furthermore, the magnetic force automatically resets after closure, ensuring effective isolation. In coal mine fire emergency scenarios, this device simultaneously meets the needs for rapid isolation and emergency escape, significantly improving operational safety. Utility Model Content

[0005] In order to overcome the problems that traditional isolation airflow devices cannot meet the requirements due to mechanical transmission delays or manual operation lags during daily use, and that the pneumatic isolation doors of traditional devices have a one-way opening structure, which prevents trapped personnel from quickly breaking through the isolation side and may delay the opportunity for self-rescue.

[0006] The technical solution of this utility model is as follows: a device for quickly blocking airflow, comprising a metal plate, a steel wire rope, a fixing frame, a connecting plate, a first magnetic block, a magnetic plate, an electromagnetic block, a second magnetic block, a handle, a hinge assembly, a suspension assembly, and a sealing assembly. Two sets of metal plates are provided. A hinge assembly is provided on the top of the metal plate, and a sealing assembly is provided on the side of the metal plate. A steel wire rope is provided on one side of the metal plate, and a suspension assembly is provided at one end of the steel wire rope. A fixing frame is provided on one side of the metal plate, and a connecting plate is provided on one side of the metal plate. The connecting plate and the fixing frame are rotatably connected. A first magnetic block is provided on one side of the connecting plate, and a magnetic plate is provided on one side of the metal plate. The opposing surfaces of the magnetic plate and the first magnetic block have opposite magnetic poles. An electromagnetic block is provided on the inner side of the metal plate, and a second magnetic block is provided on the other side of the connecting plate. The opposing surfaces of the second magnetic block and the electromagnetic block have the same magnetic poles. A handle is provided on one side of the connecting plate.

[0007] Preferably, the metal plates are rotated by pulling with steel wire ropes. When the two sets of metal plates rotate to be perpendicular to the ground, a frame for the airflow isolation structure is formed. By energizing the electromagnetic block, a repulsive force is generated between the electromagnetic block and the second magnetic block, which pushes the connecting plate to rotate around the fixed frame. When the connecting plate rotates to a certain angle, an attractive force is generated between the first magnetic block on the connecting plate and the magnetic plate on the other connecting plate, causing the first magnetic block to be attracted to the magnetic plate. That is, the connecting plate covers the gap between the two sets of metal plates, thereby sealing the gap between the two sets of metal plates. By pulling the handle, the connecting plate can be quickly pulled open, and the connecting plate on the other side can be pushed to open the gap between the two sets of metal plates. In the event of a fire, if people are trapped and cannot be evacuated in time, the trapped people can quickly open the gap in the middle of the airflow isolation device on the other side of the device without much effort, and escape from the gap. After escaping, the connecting plate closes quickly due to the magnetic force, without significantly affecting the airflow isolation effect.

[0008] Preferably, the hinge assembly includes a hinge and a connecting block, with the hinge located on one side of the metal plate and the connecting block located above the hinge.

[0009] Preferably, the hinge assembly also includes a first mounting plate, which is disposed above the connecting block.

[0010] Preferably, the suspension assembly includes a second mounting plate and a connecting frame, with the second mounting plate disposed on the outside of the metal plate and the connecting frame disposed below the second mounting plate.

[0011] Preferably, the suspension assembly also includes a motor and a traction roller. The motor is located on one side of the connecting frame, and the traction roller is located on the inner side of the connecting frame. The traction roller is connected to the output end of the motor via a rotating shaft. Both the motor and the electromagnetic block are electrically connected to the roadway operation control equipment.

[0012] Preferably, the sealing assembly includes a miniature air pump and a conduit, with the miniature air pump located on one side of the metal plate and the conduit located at the output end of the miniature air pump.

[0013] Preferably, the sealing assembly also includes an air bladder, with an air bladder provided at one end of the conduit.

[0014] The beneficial effects of this utility model are:

[0015] A metal plate is rotated by pulling a steel wire rope. When the two sets of metal plates rotate to be perpendicular to the ground, a framework for an airflow-blocking structure is formed. By energizing the electromagnetic block, a repulsive force is generated between the electromagnetic block and the second magnetic block, pushing the connecting plate to rotate around the fixed frame. When the connecting plate rotates to a certain angle, an attractive force is generated between the first magnetic block on the connecting plate and the magnetic plate on the other connecting plate, causing the first magnetic block to adhere to the magnetic plate. In other words, the connecting plate covers the gap between the two sets of metal plates, thus sealing the gap. By pulling the handle, the connecting plate can be quickly opened, pushing the connecting plate on the other side to open the gap between the two sets of metal plates. In the event of a fire, if personnel are trapped and unable to evacuate in time, the trapped personnel can quickly open the gap in the middle of the airflow-blocking device on the other side of the device without much effort, allowing them to escape. After escaping, the connecting plate closes quickly due to the magnetic force, without significantly affecting the airflow-blocking effect. In coal mine fire emergency scenarios, this device simultaneously meets the needs of rapid isolation and emergency escape, significantly improving operational safety. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of the rapid airflow blocking device of this utility model.

[0017] Figure 2 The diagram shown is a second three-dimensional structural schematic of the rapid airflow isolation device of this utility model;

[0018] Figure 3 The diagram shown is a partial three-dimensional structural schematic of the rapid airflow blocking device of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional cross-sectional view of the airflow isolation device of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Metal plate; 2. Steel wire rope; 3. Fixing frame; 4. Connecting plate; 5. First magnetic block; 6. Magnetic plate; 7. Electromagnetic block; 8. Second magnetic block; 9. Handle; 201. Hinge; 202. Connecting block; 203. First mounting plate; 301. Second mounting plate; 302. Connecting frame; 303. Motor; 304. Traction roller; 401. Miniature air pump; 402. Conduit; 403. Airbag. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 and Figure 2This utility model provides an embodiment: a device for rapidly isolating airflow, comprising a metal plate 1, a steel wire rope 2, a fixing frame 3, a connecting plate 4, a first magnetic block 5, a magnetic plate 6, an electromagnetic block 7, a second magnetic block 8, a handle 9, a hinge assembly, a suspension assembly, and a sealing assembly. Two sets of metal plates 1 are provided. A hinge assembly is provided on the top of the metal plate 1, and a sealing assembly is provided on the side of the metal plate 1. A steel wire rope 2 is provided on one side of the metal plate 1, and a suspension assembly is provided at one end of the steel wire rope 2. A fixing frame 3 is provided on one side of the metal plate 1, and a connecting plate 4 is provided on one side of the metal plate 1. The connecting plate 4 and the fixing frame 3 are rotatably connected. A first magnetic block 5 is provided on one side of the connecting plate 4, and a magnetic plate 6 is provided on one side of the metal plate 1. The magnetic plates 6 and the first magnetic block 5 have opposite magnetic poles on their opposite sides. An electromagnetic block 7 is provided on the inner side of the metal plate 1, and a handle 9 is provided on the other side of the connecting plate 4. A second magnetic block 8 is provided, and the opposite surfaces of the second magnetic block 8 and the electromagnetic block 7 have the same magnetic poles. A handle 9 is provided on one side of the connecting plate 4. The metal plate 1 is rotated by pulling the steel wire rope 2. When the two sets of metal plates 1 are rotated to be perpendicular to the ground, a frame for the airflow isolation structure is formed. By energizing the electromagnetic block 7, a repulsive force is generated between the electromagnetic block 7 and the second magnetic block 8, which pushes the connecting plate 4 to rotate around the fixed frame 3. When the connecting plate 4 is rotated to a certain angle, an attraction force is generated between the first magnetic block 5 on the connecting plate 4 and the magnetic plate 6 on the other connecting plate 4, so that the first magnetic block 5 is attracted to the magnetic plate 6. That is, the connecting plate 4 covers the gap between the two sets of metal plates 1, thereby sealing the gap between the two sets of metal plates 1. By pulling the handle 9, the connecting plate 4 can be quickly pulled open, and the other connecting plate 4 can be pushed to open the gap between the two sets of metal plates 1.

[0023] Please see Figure 3 and Figure 4 In this embodiment, the hinge assembly includes a hinge 201 and a connecting block 202. The hinge 201 is provided on one side of the metal plate 1, and the connecting block 202 is provided above the hinge 201. The hinge 201 assembly also includes a first mounting plate 203. The first mounting plate 203 is provided above the connecting block 202. In use, the first mounting plate 203 is fixed to the top of the tunnel with bolts. The hinge 201 allows the metal plate 1 to be flipped to adjust the angle.

[0024] The suspension assembly includes a second mounting plate 301 and a connecting frame 302. The second mounting plate 301 is disposed on the outside of the metal plate 1, and the connecting frame 302 is disposed below the second mounting plate 301. The suspension assembly also includes a motor 303 and a traction roller 304. The motor 303 is disposed on one side of the connecting frame 302, and the traction roller 304 is disposed on the inner side of the connecting frame 302. The traction roller 304 is connected to the output end of the motor 303 via a rotating shaft. The motor 303 and the electromagnetic block 7 are both electrically connected to the roadway operation control equipment. In use, the traction roller 304 is rotated by starting the motor 303, thereby traction. Roller 304 rotates to wind and release wire rope 2. Second mounting plate 301 is fixed to the top of the roadway by bolts. The sealing assembly includes a micro air pump 401 and a conduit 402. The micro air pump 401 is provided on one side of the metal plate 1, and the conduit 402 is provided at the output end of the micro air pump 401. The sealing assembly also includes an airbag 403. The airbag 403 is provided at one end of the conduit 402. In use, the micro air pump 401 is started to inflate the airbag 403. When the metal plate 1 is perpendicular to the ground, the airbag 403 expands to fill the gap between the metal plate 1 and the ground, reducing the leakage of harmful gases.

[0025] During operation, a first mounting plate 203 and a second mounting plate 301 are first fixed to the top of the coal mine roadway with bolts. A hinge 201 is connected to the bottom of the first mounting plate 203 via a connecting block 202, allowing the metal plate 1 to rotate axially around the hinge 201. A motor 303 and a traction roller 304 are installed below the second mounting plate 301 via a connecting frame 302. One end of the steel wire rope 2 is wound around the traction roller 304, and the other end is connected to the side of the metal plate 1. In the initial state, the motor 303 drives the traction roller 304 to release the steel wire rope 2, and the metal plate 1 is in a horizontally retracted state. When a partition needs to be constructed, the motor 303 is started to reverse and rewind the steel wire rope 2, pulling the metal plate 1 to rotate upward around the hinge 201 to a position perpendicular to the ground. The two sets of metal plates 1 are joined together to form a partition frame. At the same time, a micro air pump 401 inflates an air bag 403 through a conduit 402. The air bag 403 expands and fills the gap between the metal plate 1 and the ground, achieving a bottom seal and preventing the leakage of harmful gases.

[0026] When a fire alarm is triggered or an emergency isolation is required, power is supplied to the electromagnetic block 7 through the tunnel control room. The electromagnetic block 7 generates a magnetic field, which repels the second magnetic block 8 on the inner side of the connecting plate 4 due to the opposite magnetic poles. This pushes the connecting plate 4 to rotate outward around the fixing frame 3. After the connecting plate 4 rotates to a preset angle, the first magnetic block 5 on its outer side attracts the opposite magnetic poles of the magnetic plate 6 on the adjacent metal plate 1, so that the connecting plate 4 is tightly attached to the gap between the two sets of metal plates 1, forming a magnetic sealing structure. At this time, the airflow channel between the two sets of metal plates 1 is completely sealed. The magnetic attraction ensures the stability of the isolation structure and blocks the diffusion of harmful gases.

[0027] If the trapped person is inside the partition device, they only need to gently pull the handle 9 on the outside of the connecting plate 4 to overcome the attraction between the first magnetic block 5 and the magnetic plate 6, and then manually push the connecting plate 4 open to quickly create an escape passage. After the person passes through, they can release the handle 9, and the connecting plate 4 will automatically reset under the action of the mutual repulsion between the electromagnetic block 7 and the second magnetic block 8 and the attraction of the magnetic plate 6, thus resealing the gap. This double-sided opening design does not require damage to the partition structure, ensuring both escape efficiency and maintaining the integrity of the partition. The airbag 403 of the sealing component is continuously inflated and is not affected by the escape operation, ensuring the long-term effective operation of the partition device.

[0028] Through the above steps, the steel wire rope 2 pulls the metal plate 1 to rotate. When the two sets of metal plates 1 rotate to be perpendicular to the ground, a frame for the airflow isolation structure is formed. The electromagnetic block 7 is energized, causing a repulsive force between the electromagnetic block 7 and the second magnetic block 8. This pushes the connecting plate 4 to rotate around the fixed frame 3. When the connecting plate 4 rotates to a certain angle, an attractive force is generated between the first magnetic block 5 on the connecting plate 4 and the magnetic plate 6 on the other connecting plate 4, causing the first magnetic block 5 to adhere to the magnetic plate 6. In other words, the connecting plate 4 covers the gap between the two sets of metal plates 1, thus closing the gap between the two sets of metal plates 1. The device can be sealed by pulling handle 9 to quickly open connecting plate 4 and push connecting plate 4 on the other side to open the gap between the two sets of metal plates 1. In the event of a fire, if personnel are trapped and unable to evacuate in time, the trapped personnel can quickly open the gap in the middle of the airflow isolation device on the other side of the device without much effort, and escape from the gap. After escaping, connecting plate 4 is quickly closed by magnetic force, which will not have an excessive impact on the airflow isolation effect. In coal mine fire emergency scenarios, it simultaneously meets the needs of rapid isolation and emergency escape, significantly improving operational safety.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A device for rapidly isolating airflow, comprising a metal plate (1), characterized in that: It also includes a wire rope (2), a fixing frame (3), a connecting plate (4), a first magnetic block (5), a magnetic plate (6), an electromagnetic block (7), a second magnetic block (8), a handle (9), a hinge assembly, a suspension assembly, and a sealing assembly. Two sets of metal plates (1) are provided. A hinge assembly is provided above the metal plate (1), and a sealing assembly is provided on the side of the metal plate (1). A wire rope (2) is provided on one side of the metal plate (1), and a suspension assembly is provided at one end of the wire rope (2). A fixing frame (3) is provided on one side of the metal plate (1). A connecting plate (4) is provided on one side of the plate (1), and the connecting plate (4) and the fixing frame (3) are rotatably connected. A first magnetic block (5) is provided on one side of the connecting plate (4), and a magnetic plate (6) is provided on one side of the metal plate (1). The opposite surfaces of the magnetic plate (6) and the first magnetic block (5) are opposite magnetic poles. An electromagnetic block (7) is provided on the inner side of the metal plate (1), and a second magnetic block (8) is provided on the other side of the connecting plate (4). The opposite surfaces of the second magnetic block (8) and the electromagnetic block (7) are the same magnetic pole. A handle (9) is provided on one side of the connecting plate (4).

2. The device for rapidly isolating airflow according to claim 1, characterized in that: The hinge assembly includes a hinge (201) and a connecting block (202). The hinge (201) is provided on one side of the metal plate (1), and the connecting block (202) is provided above the hinge (201).

3. The device for rapidly isolating airflow according to claim 2, characterized in that: The hinge (201) assembly also includes a first mounting plate (203), which is disposed above the connecting block (202).

4. The device for rapidly isolating airflow according to claim 1, characterized in that: The suspension assembly includes a second mounting plate (301) and a connecting bracket (302). The second mounting plate (301) is provided on the outside of the metal plate (1), and the connecting bracket (302) is provided below the second mounting plate (301).

5. The device for rapidly isolating airflow according to claim 4, characterized in that: The suspension assembly also includes a motor (303) and a traction roller (304). The motor (303) is provided on one side of the connecting frame (302), and the traction roller (304) is provided on the inner side of the connecting frame (302). The traction roller (304) is connected to the output end of the motor (303) through a rotating shaft. The motor (303) and the electromagnetic block (7) are both electrically connected to the roadway operation control equipment.

6. The device for rapidly isolating airflow according to claim 1, characterized in that: The sealing assembly includes a micro air pump (401) and a conduit (402). The micro air pump (401) is provided on one side of the metal plate (1), and the conduit (402) is provided at the output end of the micro air pump (401).

7. The device for rapidly isolating airflow according to claim 6, characterized in that: The sealing assembly also includes an airbag (403), and one end of the conduit (402) is provided with an airbag (403).

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