CN201679512U - Split type electric control pneumatic anti-pinch door - Google Patents

Abstract

A side-by-side electric control pneumatic anti-pinch door, including a door frame, two side-by-side doors are arranged in the middle of the door frame, a small pedestrian door is arranged on one side of the side-by-side door, and a cylinder connected to the piston rod is arranged on the other side of the side-by-side door. There is a manual switch on the top; there are guide pulleys on the four corners of the door frame, and each guide pulley is wound with a steel wire rope with one end fixed on the door frame and the other end fixed on the two side-by-side doors. The steel wire rope is driven by the control cylinder The opening and closing of traction side-by-side doors; the upper part of the door frame is equipped with adjustable slide rails, the lower part is provided with multiple position sensors at intervals on the side of the driving wheel, and the outside of the bottom end of the active door is provided with induction magnets that touch multiple position sensors , The middle part of the active door relative to the driven door is provided with an anti-pinch sensing device. Use underground high-pressure gas as the power source for disaster relief, drive the cylinder to drive the side-by-side doors, and are mainly used for automatic locking dampers in coal mines. The utility model has the advantages of simple structure, convenient opening and safe and reliable use.

Description

Split type electric control pneumatic anti-pinch door

technical field

The utility model relates to a split-type electrically controlled pneumatic anti-pinch air door, which is especially suitable for a disaster relief door which can automatically lock the air door in the underground of a mine and can remotely control and adjust the opening.

Background technique

When disasters such as fires or gas explosions occur underground in coal mines, the casualties directly caused by the fires or gas explosions are very few, and the main reason for mass deaths and injuries is that a large amount of toxic and harmful gases are emitted into the mining area when the disaster occurs. Invasion and spread, causing people in the mining area to be trapped underground, and died of poisoning and suffocation. If a disaster emergency rescue system is established in advance in areas where fire or gas explosion hazards may occur, the main task is to set remote-controllable dampers at key positions in the ventilation system. Guarantee the smooth implementation of the rescue work, so as to prevent or reduce the secondary casualties of underground personnel. The main setting principle and function of the emergency rescue system are: in the mining area and other places where people are concentrated, several disaster shelters are preset, and the necessary oxygen, food and water for lifesaving are stored inside. Once a disaster occurs, the emergency rescue system will be activated immediately. , when the voice, sound and light alarm in the mining area alarms, the personnel must quickly hide in the disaster avoidance room, and the toxic and harmful gas is limited to a local area through the remote control preset controllable damper to prevent it from continuing to the mining area or other personnel. Spread and diffuse in concentrated places; and introduce toxic and harmful gases into the main return air lane of the ventilation system.

The control doors currently used for mine gas explosions and fire relief mainly include explosion-proof doors, fire doors and ventilation system anti-wind dampers. The function of the explosion-proof door is to block the shock wave and flame propagation of the gas explosion when the gas explosion occurs. But when explosion level is higher, explosion-proof door is easy to be destroyed, does not have the effect of explosion-proof, for example on November 27, 1995, explosion occurred in Dongfeng Coal Mine of Qitaihe Branch Company of Heilongjiang Longmay Group, and explosion-proof door and anti-wind The facilities were severely damaged, and 134 people died, most of whom died from inhalation of toxic gases. The function of the fire door is that when a fire breaks out in the mine, by closing the fire door, the burning flame and toxic and harmful gas will be blocked inside the fire door to prevent its spread and spread, but at the same time, it must also realize the safety of pedestrians and objects after closing. Issues of security and smooth passage after closure. The function of the anti-air door of the ventilation system is to remotely control the opening or closing of these anti-air doors when a disaster occurs in the mining area, so as to change the direction of the wind flow in the mining area. But with regard to the fire door that mine uses at present, there are three problems: (1) most of the existing fire doors do not realize remote control, and once a fire breaks out, they cannot be closed in time and delay the best time for disaster relief; The spread prevents personnel from closing the door and renders the fire door completely useless. (2) The fire doors of individual mines have been remotely controlled, and the control method is electronic control. The electric control method uses cables to transmit remote control signals. When a disaster occurs, if the cable is damaged or the underground power is cut off, the remote control The failure and lose the proper fire prevention effect. (3) When a disaster occurs in the mining area, since the location of the disaster, the scale of the disaster, and the damage to the ventilation facilities cannot be accurately grasped, and once the decision-maker decides to take anti-wind measures, the damper will be closed and no longer opened, and survivors will not be able to pass through. Because the result of the anti-wind may be to save some people while sacrificing others. At present, the balance door is generally used as the locking damper in the connection lane of the inlet and return air lanes (passing the track) underground. This kind of damper relies on a heavy hammer as a counterweight, and is pushed and pulled by manpower (the weight is lifted at the same time), and then when the manpower is out Damper, the heavy hammer automatically falls and the damper closes. There are unreliable factors in the working process, that is, two air doors can be opened at the same time, which will cause the air flow to be disturbed. Due to the counterweight, it is not very convenient to use under the situation of excessive negative pressure.

Contents of the invention

In view of the deficiencies of the existing technology, the purpose of this utility model is to provide a split-type pneumatic and electronically controlled anti-pinch door with simple structure, convenient opening, and remote control of its switch and opening.

In order to achieve the above purpose, the side-opening pneumatic electric control anti-pinch door of the utility model includes a door frame, and two side-by-side doors consisting of an active door and a driven door are arranged in the middle of the door frame, and a pedestrian door is arranged on one side of the driven door. For small doors, one side of the active door is provided with a cylinder connected to the piston rod, and a manual switch is provided above the cylinder; guide pulleys are respectively provided on the four corners of the door frame, and one end of each guide pulley is fixed on the door frame. The other ends are respectively fixed on the steel wire rope on the driving door and the driven door, and the opening and closing of the side-by-side door is driven by the steel wire rope through the control cylinder; the upper part of the door frame is equipped with adjustable slide rails; the lower part is provided with multiple positions at intervals on the side of the driving wheel Sensor, the outside of the bottom end of the active door is provided with an induction magnet that touches with a plurality of position sensors, and the middle part of the active door relative to the driven door is provided with an anti-pinch sensing device.

The anti-pinch sensing device includes an anti-pinch plate, the inside of which is connected with the active door is provided with a compression spring and an induction head, and the outside of the anti-pinch plate is provided with an anti-pinch sensor; a gap; the active door is provided with a sliding bearing to facilitate the movement of the anti-pinch sensing device; the upper beam of the door frame is provided with a bar-shaped position fixing hole.

Beneficial effects: the utility model uses the high-pressure gas transported from the ground to the underground as the power source of the damper, drives the cylinder to drive the active door switch, and connects the driven door through the wire rope around the pulley, thereby realizing the synchronous opening of the two doors; The force point is located in the middle of the door panel, which ensures the force balance of the door; the pneumatic and electric control is used to ensure the reliability of the automatic locking damper in the air passage adjustment of the mine ventilation system, and the disaster relief door can operate normally when a disaster occurs through the preset control function. Prevent the flow and diffusion of toxic and harmful gases to the mining area, and introduce the toxic and harmful gases into the main return airway of the ventilation system. Remote control can also be realized after connecting other devices; the use of manual switches and touch-type anti-pinch sensing devices is beneficial to pedestrians or vehicles. Safe passage; the small door on the door frame is convenient for the passage of a single pedestrian, as well as the passage of disaster avoidance personnel and disaster relief personnel during disaster relief. When there is electricity and compressed air supply in the underground, it will not be opened at the same time, and when there is no electricity and gas in the underground, personnel can enter and exit the roadway through the small pedestrian door, which will not cause air flow disturbance. Its structure is simple, easy to open, and safe and reliable to use. .

Description of drawings

Fig. 1 is the rear view of the structure of the anti-pinch door of the present invention in a closed state.

Fig. 2 is a front view of the structure of the anti-pinch door of the present invention in a closed state.

In the figure: 1-pedestrian small door; 2-side-by-side door; 3-cylinder; 4-position sensor; 5-manual switch; 6-door frame; 7-position sensor; 8-anti-pinch sensing device; 9-adjustable sliding Rail; 10-wire rope fixed shaft; 11-anti-pinch sensor; 12-traction wire rope; 13-sliding bearing; 14-guide pulley; 15-induction magnet; - plain bearing; 20 - notches.

Detailed ways

An embodiment of the present utility model is further described below in conjunction with accompanying drawing:

The utility model's side-by-side electric control pneumatic anti-pinch door is mainly composed of a door frame 6, two side-by-side doors 2 and a small pedestrian door arranged in the door frame 6, the two side-by-side doors 2 are composed of an active door and a driven door, and the door frame The four corners of 6 are respectively provided with guide pulleys 14, and each guide pulley 14 is respectively wound with a wire rope 12 with one end fixed on the door frame 6 and the other end fixed on the driving door and the driven door respectively. In the middle, the bottom of the side-by-side door 2 is symmetrically provided with a gap 20 for jumping over the underground track. The upper and lower sides of the side-by-side door 2 are respectively provided with two wire rope fixed shafts 10, and are provided with four sliding bearings 13. The upper and lower sides of the side-by-side door 2 are connected by two wire ropes 12 that are fixed on the wire rope fixed shaft 10 and walk around the guide pulley 14 on the four corners of the door frame 6 to realize the relative movement of the two on the slide rail. On one side of the dynamic door, there is a cylinder 3 on the side of the active door. The piston rod of the cylinder 3 is connected with the active door to drive the damper to complete the switching action. 5. The opening and closing of the side-by-side door 2 is driven by the control cylinder 3 to drive the wire rope 12; the upper beam of the door frame 6 is provided with a bar-shaped position fixing hole; the upper part of the door frame 6 is provided with an adjustable slide rail 9, and the adjustable slide rail 9 Positioning spring is provided, and slide rail begins to be in the state of being pulled up, and makes it contact with slide rail with side-by-side door 2 all the time. The lower part is provided with three evenly distributed position sensors 4 at intervals on one side of the driving wheel, and the outside of the bottom end of the active door is provided with an induction magnet 15 that touches the three position sensors 4, which can realize the full opening, half opening and full closing of the door. Control of three open states. The middle part of the active door relative to the driven door is provided with an anti-pinch sensing device 8, and the active door is provided with a sliding bearing 19 which facilitates the movement of the anti-pinch sensing device 8. Anti-pinch sensing device 8 comprises anti-pinch plate 16, and the inside of anti-pinch plate 16 is connected with active door and is provided with compression spring 18 and induction head 17, and anti-pinch plate 16 outer side protrudes door panel about 10cm distance, is provided with anti-pinch sensor 11 on it. When the door is closed and a person or an object is caught between the two door panels, the anti-pinch sensor 11 gives an opening signal to the external controller, so that the side-by-side door 2 stops closing immediately and reopens to realize the anti-pinch touch. By connecting the high-pressure gas controlled by the controller, it enters and exits the air holes at both ends of the cylinder 3 as required to drive the cylinder push rod in it to reciprocate, thereby driving the active door of the side-by-side door 2 to open or close. The steel wire rope 12 that active door is connected with driven door drives synchronous action, finishes the unlatching action of side-by-side door.

Claims (5)

1. opposite opened ecp anti-pinch air door, comprise doorframe (6), it is characterized in that: the middle part of described doorframe (6) is provided with the clamshell doors (2) that two fans are made of active door and driven door, a driven side of opening the door is provided with pedestrian's wicket (1), initiatively a side of door is provided with the cylinder (3) that links to each other with its piston rod, and cylinder (3) top is provided with hand switch (5); Be respectively equipped with leading block (14) on four angles of doorframe (6), be wound with respectively on each leading block (14) that an end is fixed in that doorframe (6) is gone up, the other end is individually fixed in the wire rope (12) on the initiatively door and driven door, by the open and close of control cylinder (3) shackle line (12) traction clamshell doors (2); The top of doorframe (6) is provided with adjustable slide rail (9), the bottom is interval with a plurality of position sensors (4) by driving wheel one side, initiatively the outside, the bottom of door is provided with the induced magnet (15) that touches mutually with a plurality of position sensors (4), and initiatively the middle part of the driven relatively door of door is provided with anti-pinch sensing device (8).

2. opposite opened ecp anti-pinch air door according to claim 1, it is characterized in that: described anti-pinch sensing device (8) comprises anti-clamping plate (16), anti-clamping plate (16) inboard that links to each other with door initiatively is provided with compression spring (18) and inductive head (17), is provided with anti-pinch sensor (11) outside the anti-clamping plate (16).

3. opposite opened ecp anti-pinch air door according to claim 1 is characterized in that: the bottom symmetry of described clamshell doors (2) has the gap (20) of the underground orbit of jumping over.

4. opposite opened ecp anti-pinch air door according to claim 1 is characterized in that: described active door is provided with is convenient to the sliding bearing (19) that anti-pinch sensing device (8) moves.

5. opposite opened ecp anti-pinch air door according to claim 1, it is characterized in that: the top rail of described doorframe (6) is provided with bar shaped fixed-site hole.

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