An automatic ventilation door for underground wells

Abstract

An automatic ventilation door for underground mining includes a door frame, a left door panel, and a right door panel. The door frame is installed in a tunnel. The left and right door panels are hinged to the door frame, and a first hydraulic telescopic cylinder is hinged between the left and right door panels and the door frame. An inlet / outlet is provided in the right door panel, and a sliding door for opening the inlet / outlet is slidably connected within the inlet / outlet. Two ventilation holes are symmetrically provided at the top of the door frame, and an exhaust fan communicating with the ventilation holes is installed on the front side of the door frame. A second hydraulic telescopic cylinder is installed on the rear top of the door frame. A positioning plate is installed at the telescopic end of the second hydraulic telescopic cylinder, and a sealing post inserted into the ventilation hole is fixed at each end of the positioning plate. This invention has advantages such as reduced energy consumption and ease of use.

Description

Technical Field

[0001] This utility model relates to the field of ventilation door technology, and in particular to an automatic ventilation door for underground mining. Background Technology

[0002] In some underground mine roadways, the wind speed and volume are relatively high, far exceeding the expected wind speed and volume. This is especially true in northern mines, where excessive wind speed and volume in winter can cause the temperature inside the roadway to drop, easily leading to icing and severely affecting workers' operations and production. To block the wind speed and volume and reduce the impact of the above situation, an air door is added in the middle of the roadway.

[0003] The existing dampers consist of a left-side door and a right-side door, combined with a hydraulic telescopic cylinder. The dampers are relatively large, so when people pass through, the entire damper needs to be opened, which is time-consuming, labor-intensive, and wasteful of energy. It is also inconvenient for ventilation, so there is room for improvement. Utility Model Content

[0004] This invention provides an automatic downhole ventilation door to solve the problems mentioned in the background art.

[0005] To address the aforementioned problems, this utility model provides an automatic underground ventilation door, comprising a door frame, a left door panel, and a right door panel. The door frame is installed in the roadway. The left and right door panels are hinged to the door frame, and a first hydraulic telescopic cylinder is hinged between the left and right door panels and the door frame. An inlet and outlet are provided in the right door panel, and a sliding door for opening the inlet and outlet is slidably connected inside the inlet and outlet. Two ventilation holes are symmetrically provided on the top of the door frame, and an air exchange fan communicating with the ventilation holes is installed on the front side of the door frame. A second hydraulic telescopic cylinder is installed on the rear top of the door frame. A positioning plate is installed on the telescopic end of the second hydraulic telescopic cylinder, and a sealing post inserted into the ventilation hole is fixed at both ends of the positioning plate.

[0006] Preferably, an electric telescopic rod is installed on the front side of the right door panel, and the telescopic end of the electric telescopic rod is fixedly connected to the upper part of the front side of the door. A controller for controlling the electric telescopic rod is provided on the front and rear sides of the right door panel, and the controller is located on the side of the entrance and exit.

[0007] Preferably, a guide rod is fixedly installed on both sides of the top of the door frame at the first hydraulic telescopic cylinder, and the positioning plate is slidably connected to the guide rod.

[0008] The beneficial effects of adopting the above technical solutions are:

[0009] The opening and closing of the left and right door panels in the door frame can be controlled by the first hydraulic telescopic cylinder, which facilitates the sealing of the tunnel and the passage of vehicles.

[0010] By using ventilation fans in conjunction with ventilation holes, air can be exchanged in the tunnel, thereby ensuring air quality. By using a second hydraulic telescopic cylinder and a sealing column, the ventilation holes can be sealed when ventilation is not needed, thereby ensuring the airtightness of the air door.

[0011] The entrance and exit points on the right-side door panel facilitate pedestrian passage. When there are no vehicles passing by, there is no need to open the entire door, reducing energy consumption. The electric telescopic rod and door opening and closing mechanism ensure the sealing of the entrance and exit points, thereby ensuring the sealing of the door. The controller allows people on both sides to easily open and close the door, facilitating passage and improving ease of use. Attached Figure Description

[0012] Figure 1 This is a front-view three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention.

[0014] Wherein: 1-Door frame; 11-Ventilation hole; 2-Left door panel; 3-Left door panel; 4-First hydraulic telescopic cylinder; 5-Inlet / outlet; 51-Open / close door; 52-Electric telescopic rod; 53-Controller; 6-Ventilation fan; 7-Second hydraulic telescopic cylinder; 71-Positioning plate; 72-Sealing column; 73-Guide rod. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0016] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, a movable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] like Figure 1-2 In this embodiment, an automatic ventilation door for underground mining includes a door frame 1, a left door panel 2, and a right door panel 3. The door frame 1 is installed in a roadway. The left door panel 2 and the right door panel 3 are hinged to the door frame 1. A first hydraulic telescopic cylinder 4 is hinged between the left door panel 2, the right door panel 3, and the door frame 1. An inlet / outlet 5 is provided in the right door panel 3. An opening / closing door 51 is slidably connected to the inlet / outlet 5. Two ventilation holes 11 are symmetrically provided on the top of the door frame 1. An air exchange fan 6 communicating with the ventilation holes 11 is installed on the front side of the door frame 1. A second hydraulic telescopic cylinder 7 is installed on the rear top of the door frame 1. A positioning plate 71 is installed at the telescopic end of the second hydraulic telescopic cylinder 7. A sealing post 72 inserted into the ventilation hole 11 is fixed at both ends of the positioning plate 71.

[0019] With the above technical solution, when vehicles need to pass, the first hydraulic telescopic cylinder 4 drives the left door panel 2 and the right door panel 3 to pull back within the door frame 1, thus fully unfolding them to facilitate vehicle passage. After the vehicle passes, the damper is closed. When only pedestrians need to pass, it is only necessary to open and close the switch door 51 in the entrance and exit 5, which facilitates pedestrians to enter and exit the alley from the entrance and exit 5, reducing energy consumption. The switch door 51 is slidably set within the entrance and exit 5, thereby blocking the entrance and exit 5 and ensuring the sealing of the right door panel 3, so as not to affect the effect of the damper. The ventilation fan 6, together with the ventilation hole 11, facilitates ventilation of the alley and ensures the air quality in the alley. When ventilation is not required, the second hydraulic telescopic cylinder 7 drives the positioning plate 71 to drive the sealing column 72 to insert into the ventilation hole 11, thereby ensuring the sealing of the door frame 1.

[0020] Preferably, an electric telescopic rod 52 is installed on the front side of the right door panel 3, and the telescopic end of the electric telescopic rod 52 is fixedly connected to the upper part of the front side of the switch door 51. A controller 53 for controlling the electric telescopic rod 52 is provided on the front and rear sides of the right door panel 3, and the controller 53 is located on the side of the inlet and outlet 5.

[0021] Through the above technical solution, the controller 53 can easily control the electric telescopic rod 52 to drive the door 51 to slide within the entrance and exit 5, thereby facilitating the opening and closing of the entrance and exit 5, making it easier for pedestrians to pass through and improving convenience.

[0022] Preferably, a guide rod 73 is fixedly provided on both sides of the top of the door frame 1 at the second hydraulic telescopic cylinder 7, and the positioning plate 71 is slidably connected to the guide rod 73.

[0023] Through the above technical solution, the guide rod 73 is provided to ensure that the positioning plate 71 moves stably under the drive of the second hydraulic telescopic cylinder 7, thereby ensuring that the sealing column 72 is stably inserted into the ventilation hole 11.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate this utility model and are not intended to limit the technical solutions described in this utility model. Therefore, although this specification has described this utility model in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model, and all technical solutions and improvements that do not depart from the spirit and scope of this utility model should be covered within the scope of the claims of this utility model; technologies not described in detail in this utility model are implemented using existing technologies.

Claims

1. A downhole automatic damper comprising a frame, a left door panel, a right door panel, characterized in that: The door frame is installed in the alley. The left and right door panels are hinged to the door frame, and a first hydraulic telescopic cylinder is hinged between the left and right door panels and the door frame. An inlet and outlet are opened in the right door panel. A switch door with an inlet and outlet is slidably connected in the inlet and outlet. Two ventilation holes are symmetrically opened on the top of the door frame, and an exhaust fan connected to the ventilation holes is installed on the front side of the door frame. A second hydraulic telescopic cylinder is installed on the top rear side of the door frame. A positioning plate is installed on the telescopic end of the second hydraulic telescopic cylinder, and a sealing post inserted into the ventilation hole is fixed at both ends of the positioning plate.

2. An automatic downhole air door according to claim 1, characterized in that: An electric telescopic rod is installed on the front side of the right door panel, and the telescopic end of the electric telescopic rod is fixedly connected to the upper part of the front side of the door. A controller for controlling the electric telescopic rod is provided on the front and rear sides of the right door panel, and the controller is located on the side of the entrance and exit.

3. An automatic downhole air door according to claim 1, characterized in that: The top of the door frame is fixed with a guide rod on each side of the first hydraulic telescopic cylinder, and the positioning plate is slidably connected to the guide rod.

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