Double air door device for mine

Abstract

The utility model discloses a kind of mining double-layer air door devices, including door frame and control unit, door frame is composed of overhead line door frame and passage door frame, overhead line door frame and passage door frame are respectively provided with overhead line air door and passage air door, automatic door closer I and automatic door closer II that control its opening and closing are respectively connected on overhead line air door and passage air door, left door leaf and right door leaf of overhead line air door are provided with recess that matches with single overhead line track cross section on opposite edge, visual sensor I and visual sensor II that monitor crane position are respectively arranged in the roadway top of door frame front and back side, door frame front and back side roadway side wall is respectively provided with switch button I and switch button II.Compared with prior art, the utility model at least has the following beneficial effects: the utility model can make single-track crane pass smoothly, and has good sealing effect on roadway.

Description

Technical Field

[0001] This utility model belongs to the field of mining equipment, specifically relating to a double-layer ventilation door device for mining. Background Technology

[0002] Air doors are key facilities in underground coal mine ventilation systems, used to isolate airflow in roadways, prevent short-circuiting, and ensure the stable and reliable operation of the mine ventilation system. In recent years, monorails have been widely used as a highly efficient underground transportation device. Monorail tracks are usually located at a high position at the top of the roadway, so an opening needs to be reserved above the air door for monorail passage. However, the long-term existence of this opening can lead to air leakage, compromising the stability of the mine ventilation system.

[0003] Currently, several feasible solutions for sealing monorail passages have been proposed in the market, but they generally have some problems. For example, the mining rotary sliding door disclosed in patent document CN116480399A discloses a method of sealing the monorail passage with a rotating door that flips up and down, and then sealing the through hole through which the monorail track passes through by a sliding door set on the rotating door. This solution has a good sealing effect on the monorail passage, but it has some problems: First, the rotating door and the sliding door each have a drive mechanism to control their movement, which increases the overall cost and reduces the reliability of the system; second, the rotating door is flipped by a lifting mechanism and a rope nose, which can cause slight shaking at the edge of the rotating door, affecting the sealing of the passage; third, the monorail passage mainly relies on the passive opening and closing by the operators, which affects the continuity of monorail passage. For example, patent document CN219241972U discloses a rodless cylinder-driven air door for a mine monorail hoist, which discloses that the movable door edge of the sliding door is provided with a groove that matches the monorail hoist track, and the entire monorail hoist passage is closed by the sliding door. This solution also has a good sealing effect on the monorail hoist passage, but there are also some problems: First, the sliding door is a combination of fixed door leaf and movable door leaf, and the fixed door leaf will occupy the horizontal space above the roadway; second, the monorail hoist passage mainly relies on the passive opening and closing by the operators, which affects the continuity of monorail hoist passage. Utility Model Content

[0004] The purpose of this invention is to overcome the existing problems in the sealing of monorail passages and to provide a mine double-layer ventilation door device that enables smooth passage of monorails and provides a good sealing effect on roadways.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a double-layer ventilation door device for mines, including a door frame and a control unit. The door frame consists of a suspended rail door frame and a passage door frame. The suspended rail door frame is located above the passage door frame. The suspended rail door frame and the passage door frame are respectively provided with a suspended rail ventilation door and a passage ventilation door, each consisting of a left door leaf and a right door leaf. Automatic door closer I and automatic door closer II, which control their opening and closing, are respectively connected to the suspended rail ventilation door and the passage ventilation door. The left and right door leaves of the suspended rail ventilation door have grooves on their opposite edges that match the cross-section of the single suspended rail track. The single-rail section of the suspended rail door frame is perpendicular to the suspended rail damper. Visual sensors I and II, which monitor the position of the crane, are respectively installed on the top of the front and rear aisles of the door frame. Switch buttons I and II are respectively installed on the side walls of the front and rear aisles of the door frame. Automatic door closer I, automatic door closer II, visual sensors I and II, switch buttons I and II are electrically connected to the control unit. Visual sensors I and II are associated with automatic door closer I, and switch buttons I and II are associated with automatic door closer II.

[0006] Optionally, the groove is provided with an elastic sealing element, the inner surface shape of which matches the flange and web surface of the single-rail track.

[0007] Optionally, the visual sensor I and visual sensor II are cameras, and the cameras integrate an infrared fill light module.

[0008] The usage of this utility model is as follows: The control unit can be connected to the mine central system, and the central system can uniformly control the opening and closing of the hoisting air door and the passage air door; under normal circumstances, the control unit controls the automatic door closer to open and close the hoisting air door and the passage air door according to the information from switch button I, switch button II, vision sensor I and vision sensor II. That is, the operator opens and closes the passage air door as needed by pressing the buttons on both sides, and the hoisting air door of a single hoisting rail is automatically opened and closed by the inspection of the vision sensor.

[0009] The principle of this invention is as follows: The damper is divided into an upper layer (suspended rail damper) and a lower layer (access damper). The passage needs of the operators are obtained through switch button I and switch button II, and the access damper is opened and closed as needed. The position of the monorail is automatically monitored by vision sensor I and vision sensor II. At the appropriate time, the suspended rail damper is automatically opened and closed, which can ensure the continuity of monorail passage without affecting the normal passage of operators and equipment. The left and right door panels of the suspended rail damper have grooves on their opposite edges that match the cross-section of the monorail track. The monorail track section passing through the suspended rail door frame is perpendicular to the suspended rail damper. When the left and right door panels of the suspended rail damper open and close, the groove trajectory moves along the monorail track, conforming to the flange and web surface of the monorail track, thereby achieving a better sealing effect and maintaining the stability of the seal.

[0010] Compared with the prior art, the present invention has at least the following beneficial effects: the present invention enables the monorail to pass smoothly and has a better sealing effect on the tunnel. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the front structure of this utility model; Figure 2 This is a side view of the structure of this utility model; The following are the detailed labels in the attached drawings: hanging rail door frame 1, passage door frame 2, hanging rail damper 3, passage damper 4, automatic door closer I 5, automatic door closer II 6, groove 7, vision sensor I 8, vision sensor II 9, switch button I 10, switch button II 11, elastic sealing element 12. Detailed Implementation

[0012] The specific embodiments of this utility model are described below, but the embodiments are merely illustrative and not limiting.

[0013] refer to Figure 1 and Figure 2 In this embodiment, the mine double-layer air door device includes a door frame and a control unit. The control unit is an integrated IC chip unit for information processing. The door frame consists of a suspended rail door frame 1 and a passage door frame 2 made of metal material. The suspended rail door frame is located above the passage door frame. The suspended rail door frame and the passage door frame are respectively hinged to a suspended rail air door 3 and a passage air door 4, which are composed of a left door leaf and a right door leaf. The suspended rail air door and the passage air door adopt a one-way swing opening. When closed, the edges are fitted and sealed with the door frame. Automatic door closer I 5 and automatic door closer II 6 are respectively connected to the suspended rail air door and the passage air door to control their opening and closing. Automatic door closer I and automatic door closer II are electric door closers. Their main bodies can be installed on the door beam or door leaf. The connecting rod is matched and fixed on the door beam or door leaf according to the installation of the main body. The left and right door panels have grooves 7 on their opposite edges that match the cross-section of the single-rail track. The single-rail track section of the door frame is perpendicular to the door. Visual sensors I 8 and II 9 for monitoring the crane position are installed on the top of the roadway on the front and rear sides of the door frame, respectively. Switch buttons I 10 and II 11 are installed on the side walls of the roadway on the front and rear sides of the door frame, respectively. Switch buttons I and II are dual-control panel switches that control the opening and closing of the passage door. Automatic door closer I, automatic door closer II, visual sensor I, visual sensor II, switch buttons I and II are electrically connected to the control unit. Visual sensor I and visual sensor II are associated with automatic door closer I, and switch buttons I and switch buttons II are associated with automatic door closer II. The power supply is provided by the underground power system.

[0014] In this embodiment, an elastic sealing element 12, such as an elastic rubber pad, is covered and fixed on the edge of the groove so that the inner surface shape of the elastic sealing element matches the flange and web surface of the single hanging rail, thereby improving the fit and thus enhancing the sealing performance.

[0015] In this embodiment, visual sensor I and visual sensor II are cameras, and information is processed by the control unit. The cameras are equipped with infrared fill light modules to adapt to the dim environment underground.

[0016] The above description is merely a preferred embodiment of this utility model and is not intended to limit this embodiment in any way. Any person skilled in the art can make many possible variations and modifications to this utility model using the disclosed methods and techniques, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model; all such modifications shall still fall within the protection scope of this utility model.

Claims

1. A mine double-layer air door device, comprising a door frame and a control unit, characterized in that: The door frame consists of a hanging rail door frame (1) and a passage door frame (2). The hanging rail door frame is located above the passage door frame. The hanging rail door frame and the passage door frame are respectively equipped with a hanging rail damper (3) and a passage damper (4) consisting of a left door leaf and a right door leaf. Automatic door closer I (5) and automatic door closer II (6) are respectively connected to the hanging rail damper and the passage damper to control their opening and closing. The left and right door leaves of the hanging rail damper are provided with grooves (7) that match the cross-section of the single hanging rail track. The single hanging rail track section of the hanging rail door frame is connected to the hanging rail. The air door is vertical. Visual sensors I (8) and II (9) for monitoring the position of the crane are installed on the top of the front and rear sides of the door frame. Switch buttons I (10) and II (11) are installed on the side walls of the front and rear sides of the door frame. Automatic door closer I, automatic door closer II, visual sensor I, visual sensor II, switch button I and switch button II are electrically connected to the control unit. Visual sensor I and visual sensor II are associated with automatic door closer I, and switch button I and switch button II are associated with automatic door closer II.

2. The mine double-layer air door device according to claim 1, characterized in that: An elastic sealing element (12) is provided in the groove, and the inner surface shape of the elastic sealing element matches the flange and web surface of the single hanging rail.

3. The mine double-layer air door device according to claim 1, characterized in that: Visual sensor I and visual sensor II are cameras, and the cameras integrate an infrared fill light module.

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