A portable mine air door

Abstract

The present invention provides a convenient mining air door, comprising air doors, including a left air door and a right air door; a slideway fixed above the air door; a slider arranged on the slideway and movable on the slideway; the slider is connected and fixed to the upper part of the air door; a driving device is installed above the slideway, comprising sprockets on left and right sides, and a chain installed on the sprockets, and the sprockets are driven by a motor; the top ends of the left air door and the right air door are respectively fixedly connected to the chain through connecting blocks, so that when the motor drives the chain to transmit, the movement directions of the left air door and the right air door are opposite; a supporting groove is fixedly installed at the rear of the slideway, and a left slider and a right slider are arranged therein, the left slider is connected and fixed to the right side of the left air door through a left supporting rod, and the right slider is connected and fixed to the left side of the right air door through a right supporting rod; the present invention has low installation cost, low failure rate in air door operation, is safe and durable, reduces invalid air leakage, and ensures the stability of the ventilation system.

Description

Technical Field

[0001] The invention relates to a portable air door for mining. Background Art

[0002] The functions of mine dampers are to supply sufficient fresh air underground to meet the personnel's needs for oxygen, dilute toxic and harmful gases and dust underground, and ensure safe production; regulate the underground climate and create a good working environment. It is a very important device in mine production; at present, mine dampers mostly use rotary opening and closing dampers and track dampers. The rotary opening and closing dampers have a complex structure and high installation cost; the track dampers have a high failure rate for the following reasons: the rocks dropped when the mine car passes through can easily deform the lower track, or get stuck on the lower track, causing the damper to be unable to close, or even damage the motor; and the single upper track damper has no fixation at the bottom of the damper, so it shakes significantly when the wind is strong, which can easily damage the motor when opening and closing. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects and provide a convenient mine air door.

[0004] The present invention adopts the following technical solutions:

[0005] A portable mining air door comprises air doors, including a left air door and a right air door; a slideway fixed above the air door; a slider arranged on the slideway and movable on the slideway; the slider is connected and fixed to the upper part of the air door; a driving device is installed above the slideway, comprising sprockets on left and right sides, and a chain installed on the sprockets, and the sprockets are driven by a motor; the top ends of the left air door and the right air door are respectively fixedly connected to the chain through connecting blocks, so that when the motor drives the chain to transmit, the movement directions of the left air door and the right air door are opposite; a supporting groove is fixedly installed at the rear of the slideway, and a left slider and a right slider are arranged therein, the left slider is connected and fixed to the middle position of the right side of the left air door through a left supporting rod, and the right slider is connected and fixed to the middle position of the left side of the right air door through a right supporting rod.

[0006] Preferably, two groups of roller devices are provided on both sides of the channel where the damper is located; each group of the roller devices includes two rollers, each of the rollers is mounted on the channel wall through a bracket, and the two rollers are located on the front and rear sides of the damper.

[0007] Preferably, a control device is further provided; the control device is connected to control the motor; sensors are provided on the front and rear sides of the damper, and the sensors are connected to the control device.

[0008] The sensor is an infrared sensor.

[0009] Preferably, a sound and light alarm is also provided on the side of the passage in front of the damper; and the control system is connected to control the sound and light alarm.

[0010] Preferably, the control system is a PLC controller.

[0011] Preferably, electric control buttons are provided on the front and rear sides of the damper; the electric control buttons are connected to the PLC controller.

[0012] Preferably, the motor is an explosion-proof motor.

[0013] The beneficial effects of the present invention are as follows: the present invention solves the existing problems of the damper through a convenient structural design; although the upper part of the present invention is fixed and the lower part is suspended, the installation cost is low, the damper operation failure rate is low, it is safe and durable, and ineffective air leakage is reduced, thereby ensuring the stability of the ventilation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of the present invention.

[0015] Figure 2 It is a partial cross-sectional view of the present invention.

[0016] Figure 3 It is a partial enlarged view of the present invention.

[0017] Figure 4 It is a top view of the present invention. DETAILED DESCRIPTION

[0018] In order to make the purpose and technical solution of the present invention clearer, the present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0019] like Figure 1 to Figure 4 A portable mining air door shown in the figure comprises air doors, including a left air door 11 and a right air door 12; a slideway 2 fixed on the top of the air door; a slider 21 arranged on the slideway 2 and movable on the slideway 2; the slider 21 is connected and fixed to the upper part of the air door; a driving device is installed above the slideway 2, comprising sprockets 31 on the left and right sides, and a chain 32 installed on the sprocket, and the sprocket is driven by a motor 4; the top ends of the left air door 11 and the right air door 12 are respectively fixedly connected to the chain 32 through a connecting block 33, so that when the motor 4 drives the chain 32 to transmit, the movement directions of the left air door 11 and the right air door 12 are opposite; a support groove 5 is fixedly installed at the rear of the slideway 2, and a left slider (not shown in the figure) and a right slider (not shown in the figure) are arranged therein, the left slider is connected and fixed to the middle position of the right side of the left air door 11 through a left support rod 51, and the right slider is connected and fixed to the middle position of the left side of the right air door 12 through a right support rod 52.

[0020] Preferably, two groups of roller devices 6 are provided on both sides of the channel where the damper is located; each group of the roller devices includes two rollers, each of the rollers is mounted on the channel wall through a bracket, and the two rollers are located on the front and rear sides of the damper.

[0021] Preferably, a control device (not shown in the figure) is further provided; the control device is connected to control the motor 4; sensors 7 are provided on the front and rear sides of the damper, and the sensors 7 are connected to the control device.

[0022] The sensor 7 is an infrared sensor.

[0023] Preferably, a sound and light alarm 8 is also provided on the side of the passage in front of the damper; and the control system is connected to control the sound and light alarm 8.

[0024] Preferably, the control system is a PLC controller.

[0025] Preferably, electric control buttons 9 are provided on both sides of the damper; the electric control buttons are connected to the PLC controller.

[0026] Preferably, the motor is an explosion-proof motor.

[0027] The left and right air doors of the present invention are both 1.75 meters wide and 3.4 meters high. The door frame is made of a 100x50x5 rectangular tube, the door leaf is made of a 60x40x4 and 40x40x3 rectangular tube, and the door leaf panel is made of a 2mm thick cold-rolled plate.

[0028] The working process of the damper is as follows: when a mine car or a person passes through the damper from outside to inside, the infrared sensor on the inside of the damper is cut off, and a signal to open the door is issued. The PLC controller of the main engine of the mining automatic control device system issues a command, and the explosion-proof motor starts to run first, and the motor drives the chain to push the door leaf of the damper to both sides; the red light on the inside is on, and the inside cannot be opened at this time, and the sound and light alarm of the mining damper is executed, the green light is on, and a sound alarm prompts "the damper is open, please pay attention to safety"; when pedestrians or mine cars pass through the damper, the damper starts to close automatically after a certain interval (the length of time that the damper is in the open state can be set and modified in the program of the PLC controller, and when the pedestrian or mine car triggers the infrared sensor for the 2nd, 3rd, 4th...Nth time before the open damper is closed, the program timer automatically returns to zero and restarts the timing), and when the damper is completely closed, the alarm device at the damper stops working; the operation method and principle of passing from the inside to the outside are the same as above.

[0029] When there is a problem with the infrared sensor, pedestrians or mine car drivers can use the manual control electric control button to open and close the damper when passing through the damper. For safety reasons, after pressing the electric control button, the damper will not execute the closing command until the button is pressed again. When pedestrians pass through the damper, they can press the button on one side of the damper without waiting for the damper to be fully opened, and the damper will immediately close, saving time for miners to pass; when miners use the electric control button to open the door leaf and pass through without pressing the button again to close the damper, the motor will automatically stop after a certain period of time; the electric control button is connected to the control system.

[0030] The above-mentioned motor forward and reverse control door opening and closing, motor running time, and opening and closing interval time can all be set in the control system. It is a routine operation and will not be elaborated in the present invention.

[0031] In the description of the invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The components used in the present invention are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the present invention.

Claims

1. A portable mining air door, characterized in that: include: Air door, including left air door and right air door; A slideway is fixed above the damper; A slider is disposed on the slideway and can move on the slideway; the slider is connected to and fixed to the upper part of the damper; A driving device is installed above the slideway, comprising sprockets on the left and right sides, and chains installed on the sprockets, wherein the sprockets are driven by a motor; The top ends of the left air door and the right air door are respectively fixedly connected to the chain through a connecting block, so that when the motor drives the chain to transmit, the movement directions of the left air door and the right air door are opposite; A support groove is fixedly installed behind the slideway, and is provided with a left slider and a right slider. The left slider is connected and fixed to the middle position of the right side of the left air door through a left support rod, and the right slider is connected and fixed to the middle position of the left side of the right air door through a right support rod; Two sets of roller devices are provided on both sides of the passage where the damper is located; Each group of the roller devices includes two rollers, each of which is mounted on the channel wall through a bracket, and the two rollers are located at the front and rear sides of the damper; A control device, the control device is connected to control the motor; Sensors are arranged at the front and rear sides of the damper, and the sensors are connected to the control device.

2. A portable mine air door according to claim 1, characterized in that: The sensor is an infrared sensor.

3. A portable mine air door according to claim 1, characterized in that: A sound and light alarm is also provided on the side of the passage in front of the damper; The control device is connected to control the sound and light alarm.

4. A portable mine air door according to claim 1, characterized in that: The control device is a PLC controller.

5. A portable mining air door according to any one of claims 1 to 4, characterized in that: The front and rear sides of the damper are also provided with electric control buttons; The electric control button is connected to the PLC controller.

6. A portable mining air door according to any one of claims 1 to 4, characterized in that: The motor is an explosion-proof motor.

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