An emergency fire door for coal mines

Abstract

The utility model discloses an emergency fire door for coal mines, belonging to the technical field of underground safety protection devices; it comprises a door frame arranged underground; door panels that can be closed are hingedly installed on the left and right sides of the door frame respectively; a pair of electrically controlled telescopic rods are also arranged on the top of the door frame; one end of the electrically controlled telescopic rod is connected to the upper side of the door panel to control the opening and closing of the door panel; the electrically controlled telescopic rod is connected to the controller through a wire; a first track and a second track of a monorail crane are respectively arranged on the front and rear sides of the door frame; a self-detaching track that passes through the door frame is arranged between the first track and the second track; one end of the self-detaching track is hingedly installed on the first track, and the other end is detachably connected to the second track, and the action of the self-detaching track is controlled by the controller; the utility model effectively solves the problem that the emergency fire door in the current tunnel cannot be effectively controlled and managed, and it is difficult to achieve the effect of isolating oxygen from the comprehensive mining face.

Description

Technical Field

[0001] The utility model relates to the technical field of underground safety protection devices, in particular to an emergency fire door for coal mines. Background Art

[0002] According to regulations, when mining coal seams that are prone to spontaneous combustion, the location of the fire door must be pre-selected in the mining design of the mining area. In order to prevent accidents such as spontaneous combustion of coal in places such as the fully-mechanized mining face of the mine, remote control of the tunnel fire door is achieved during power outages and evacuation, thereby effectively isolating the fully-mechanized mining face from oxygen, preventing the spread of toxic gas, preventing fire, and preventing the accident from further deteriorating. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an emergency fire door for coal mines, so as to solve the problem that the emergency fire doors in the current tunnels cannot be effectively controlled and managed, and it is difficult to achieve the effect of isolating oxygen from the fully mechanized mining face.

[0004] In order to solve the above problems, the utility model provides the following technical solutions:

[0005] An emergency fire door for coal mines; it comprises a door frame arranged underground; door panels that can be closed are hingedly installed on the left and right sides of the door frame; a pair of electrically controlled telescopic rods are also arranged on the top of the door frame; one end of the electrically controlled telescopic rod is connected to the door panel to control the opening and closing of the door panel; the electrically controlled telescopic rod is connected to a controller through a wire; a first track and a second track of a monorail crane are respectively arranged on the front and rear sides of the door frame; a self-detaching track that passes through the door frame is arranged between the first track and the second track; one end of the self-detaching track is hingedly installed on the first track, and the other end is detachably connected to the second track, and the movement of the self-detaching track is controlled by the controller.

[0006] Preferably, a plurality of positioning blocks and connecting ear plates are provided on the left and right end sides and the top of the door frame; the door panel is rotatably mounted on the connecting ear plates by means of positioning pins; and a positioning block is also provided on the top of the door frame.

[0007] Preferably, the door panel includes a pressure plate with its front side facing the mining end of the mine; a grid-shaped reinforcement plate is also provided on the back side of the pressure plate; the electric-controlled telescopic rod is hinged on the back side of the pressure plate; and the first track is provided opposite to the back side of the pressure plate.

[0008] Preferably, the electric telescopic rod is a telescopic cylinder structure; clamps are provided at the middle position of the upper side of the door panel and at the top of the door frame near the left and right sides; the two ends of the electric telescopic rod are respectively hingedly mounted on the two clamps; the electric telescopic rod as a whole is parallel to the plane where the lower bottom side of the door frame is located.

[0009] Preferably, the controller is a circuit mainboard based on a single chip microcomputer; a communication module is also integrated on the controller; and both the controller and the electrically controlled telescopic rod are powered by an external power supply.

[0010] Preferably, the self-detaching track includes a track body hingedly mounted at the end of the first track and a separation box mounted on the second track; the other end of the track body is detachably connected to the separation box via a snap-fit ​​piece; an electric control push head for controlling the snap-fit ​​piece to disengage from the separation box is provided inside the separation box; the electric control push head is connected to the controller via a wire.

[0011] Beneficial effects of the utility model:

[0012] The utility model designs a fire door for mines; it can realize remote control of the tunnel fire door, thereby realizing effective oxygen isolation of the comprehensive mining face, etc., and at the same time can also prevent the spread of toxic gas, prevent fire extinguishing, and prevent accidents from further deteriorating; the utility model is easy to operate, has a quick action response, can greatly improve underground mine safety, and is suitable for promotion and use in the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model in an embodiment;

[0014] Figure 2 yes Figure 1 Schematic diagram of the self-derailment track being disconnected from the second track;

[0015] Figure 3 1 is a top view of the device in two states in this embodiment;

[0016] Figure 4 is a side view of the door panel in the closed state in this embodiment;

[0017] Figure 5 is a connection diagram of electrical components in this embodiment;

[0018] Explanation of the accompanying drawings: 1. door frame, 2. door panel, 3. electric telescopic rod, 4. controller, 5. first track, 6. second track, 7. self-detaching track, 7A. track body, 7B. separation box, 7C. electric push head, 8. positioning block, 9. connecting ear plate. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0020] Example:

[0021] Reference Figure 1The present embodiment provides an emergency fire door for a coal mine; it comprises a door frame 1 arranged underground; door panels 2 that can be closed are hingedly installed on the left and right sides of the door frame 1; a pair of electrically controlled telescopic rods 3 are also arranged on the top of the door frame 1; one end of the electrically controlled telescopic rods 3 is connected to the upper side of the door panel 2 to control the opening and closing of the door panel 2; the electrically controlled telescopic rods 3 are connected to the controller 4 through a wire; a first track 5 and a second track 6 of a monorail crane are respectively arranged on the front and rear sides of the door frame 1; a self-detaching track 7 that passes through the door frame 1 is arranged between the first track 5 and the second track 6; one end of the self-detaching track 7 is hingedly installed on the first track 5, and the other end is detachably connected to the second track 6, and the action of the self-detaching track 7 is controlled by the controller 4.

[0022] A plurality of positioning blocks 8 and connecting ear plates 9 are provided on the left and right end sides and the top of the door frame 1 ; the door panel 2 is rotatably mounted on the connecting ear plates 9 via positioning pins; and a positioning block 8 is also provided on the top of the door frame 1 .

[0023] The door panel 2 includes a pressure plate with its front side facing the mining end of the mine; a grid-shaped reinforcement plate is also arranged on the back side of the pressure plate; the electric control telescopic rod 3 is hinged on the back side of the pressure plate; and the first track 5 is arranged opposite to the back side of the pressure plate.

[0024] The electric telescopic rod 3 is a telescopic cylinder structure; clamps are provided at the middle position of the upper side of the door panel and at the top of the door frame 1 near the left and right sides; the two ends of the electric telescopic rod 3 are respectively hingedly mounted on the two clamps; the electric telescopic rod 3 is parallel to the plane of the lower bottom side of the door frame 1 as a whole.

[0025] The controller 4 is a circuit mainboard based on a single chip microcomputer; a communication module is also integrated on the controller 4; the controller 4 and the electric telescopic rod 3 are both powered by an external power supply.

[0026] The self-detaching track 7 includes a track body 7A hingedly installed at the end of the first track 5 and a separation box 7B installed on the second track 5; the other end of the track body 7A is detachably connected to the separation box 7B through a snap-fit ​​piece; an electric control push head 7C for controlling the snap-fit ​​piece to disengage is provided inside the separation box 7B; the electric control push head 7C is connected to the controller 4 through a wire.

[0027] When using the utility model device in this embodiment, first ensure that the two electrically-controlled telescopic rods are in a stretched state in a natural state, so that the door panel is opened to allow personnel and equipment to enter and exit. At this time, the first track, the second track and the self-detaching track are connected in a straight line; and when an abnormality occurs in the mine and the fire door needs to be closed, the operator can manually control the controller to handle it, or the controller can independently determine the working timing of the electrically-controlled telescopic rod and the self-detaching track according to other communication equipment in the mine system. When closing the door, the electrically-controlled push head on the self-detaching track needs to work first to separate the card on the track body from the separation box, and then let the track body fall naturally, and then control the electrically-controlled telescopic rod to close the two door panels; thereby completing the emergency closing operation of the fire door.

Claims

1. An emergency fire door for a coal mine, comprising a door frame (1) arranged underground; a closable door panel (2) is hingedly mounted on the left and right sides of the door frame (1); the characteristics are: A pair of electrically controlled telescopic rods (3) are also arranged at the top of the door frame (1); one end of the electrically controlled telescopic rod (3) is connected to the door panel (2) to control the opening and closing of the door panel (2); the electrically controlled telescopic rod (3) is connected to a controller (4) via a wire; a first track (5) and a second track (6) of a monorail are respectively arranged at the front and rear sides of the door frame (1); a self-detaching track (7) is arranged between the first track (5) and the second track (6) and passes through the door frame (1); one end of the self-detaching track (7) is hingedly mounted on the first track (5), and the other end is detachably connected to the second track (6), and the movement of the self-detaching track (7) is controlled by the controller (4).

2. The emergency fire door for coal mine according to claim 1, characterized in that: A plurality of positioning blocks (8) and connecting ear plates (9) are provided on the left and right end sides and the top of the door frame (1); the door panel (2) is rotatably mounted on the connecting ear plates (9) via positioning pins; and a positioning block (8) is also provided on the top of the door frame (1).

3. The emergency fire door for coal mine according to claim 1, characterized in that: The door panel (2) comprises a pressure plate with its front side facing the mining end of the mine shaft; a grid-shaped reinforcement plate is also arranged on the back side of the pressure plate; the electric control telescopic rod (3) is hinged on the back side of the pressure plate; and the first track (5) is arranged directly opposite to the back side of the pressure plate.

4. The emergency fire door for coal mine according to claim 1, characterized in that: The electric telescopic rod (3) is a telescopic cylinder structure; a clamping head is provided at the middle position of the upper side of the door panel and at the position of the top of the door frame (1) near the left and right sides; the two ends of the electric telescopic rod (3) are respectively hingedly mounted on the two clamping heads; the electric telescopic rod (3) is parallel to the plane where the lower bottom side of the door frame (1) is located as a whole.

5. The emergency fire door for coal mine according to claim 1, characterized in that: The controller (4) is a circuit mainboard based on a single-chip microcomputer; a communication module is also integrated on the controller (4); and both the controller (4) and the electrically controlled telescopic rod (3) are powered by an external power supply.

6. The emergency fire door for coal mine according to claim 1, characterized in that: The self-detaching track (7) comprises a track body (7A) hingedly mounted on the end of a first track (5) and a separation box (7B) mounted on a second track (6); the other end of the track body (7A) is detachably connected to the separation box (7B) via a buckle; an electric control push head (7C) for controlling the detachment of the buckle is arranged inside the separation box (7B); the electric control push head (7C) is connected to a controller (4) via a wire.

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