CN109469434B - A sliding fire door - Google Patents

Abstract

The present invention provides a push-pull fire door, which includes a fire door panel, a telescopic rod, a door handle, a pressure sensor, a smoke control switch, an LED guide device, a battery, an electromagnet, a current controller, a pulley, and a guide rail. The horizontal opening feature will not open or close randomly due to the pressure change caused by the high-speed operation of the vehicle. At the same time, in order to prevent the push-pull fire door from being opened horizontally at will, a telescopic rod and an electromagnet are set up, relying on the inner spring of the telescopic rod. The elastic force and the electromagnetic iron in the fire door panels on the left and right sides are attractive, and the sliding fire door is tightly closed. In the event of a fire, it can guide the personnel to evacuate to the communication channel, and at the same time, it can assist the personnel to open the fire door. After the personnel pass through the fire door Automatically close fire doors to evacuate people and prevent the spread of fire and smoke.

Description

A sliding fire door

technical field

The invention relates to a push-pull fire door, in particular to a fire door applied to a tunnel communication channel.

Background technique

In tunnel engineering, the communication channel is a kind of safe evacuation channel. The two ends of the communication channel are connected to the traffic tunnel respectively. The main function of the communication channel is to allow personnel to evacuate through the communication channel to the The traffic tunnel at the other end of the channel, so the communication channel is often set in long tunnels, ultra-long tunnels and extra-long tunnels to ensure that personnel can be evacuated in time and safely when emergencies occur, and tunnel fires are the main disaster that threatens people's safety. One, in the event of a fire in the tunnel, the communication channel not only ensures the safe evacuation of personnel, but also becomes a channel for the spread of smoke and fire. Therefore, in order to prevent the spread of smoke and fire to the other side of the tunnel, the communication channel and the traffic tunnel are connected. Fire doors must be set up in the tunnel. Due to the high-speed operation of vehicles in the tunnel, the pressure in the tunnel changes drastically. If ordinary fire doors are used, the violent pressure changes will easily cause the fire doors to open frequently longitudinally, which will seriously affect the driving safety and shorten the fire prevention. service life of the door.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a push-pull fire door, which includes a pair of side sliding doors installed in the door opening. The split side sliding door includes a fire door panel A and a fire door panel B. The size of the fire door panel A and the fire door panel B are the same, and several elastic telescopic rods are installed on the sides of the two. Under normal conditions, the fire door panel A and the fire door panel B are closed and pressed tightly by the elastic telescopic rod.

It is characterized in that: electromagnet A is installed on described fire door panel A, and electromagnet B is installed on described fire door panel B. When the fire door panel A and the fire door panel B are closed, the magnetic poles of the electromagnet A and the electromagnet B are in contact.

A pressure sensor A is installed on the door handle A of the fire door panel A. When the door handle A is pulled by hand, the pressure sensor A senses the pressure and transmits the signal A to the current controller.

A pressure sensor B is installed on the door handle B of the fire door panel B. When the door handle B is pulled by hand, the pressure sensor B senses the pressure and transmits the signal B to the current controller.

The current controller controls the positive and negative power supply directions of electromagnet A and electromagnet B. Under normal conditions, the magnetic poles of electromagnet A and electromagnet B are opposite poles. When the current controller receives the signal A and/or the signal B, the current controller changes the positive and negative power supply directions of the electromagnet A and the electromagnet B, and the magnetic poles of the electromagnet A and the electromagnet B are the same pole.

Further, an LED guide device A is provided on the fire door panel A. An LED guide device B is arranged on the fire door panel B. The LED guide device A and the LED guide device B are arrow signs indicating that the fire door panel A and the fire door panel B are opened to both sides.

Further, it also includes a smoke control switch and a battery. During non-fire conditions, the electromagnet A, electromagnet B, LED guide device A, LED guide device B, pressure sensor A, and pressure sensor B are powered by a tunnel power supply cable. In the event of a fire, the electromagnet A, electromagnet B, LED guide device A, LED guide device B, pressure sensor A, and pressure sensor B are powered by batteries.

Further, after the pressure measured by the pressure sensor A and the pressure sensor B disappears, the current controller can keep the electromagnet A and the electromagnet B powered for 30 seconds without changing the positive and negative power supply directions.

Further, a smoke control switch is provided on the tunnel wall surface on the upper part of the fire door panel A and the fire door panel B.

Further, the door handle A is arranged in the middle of the fire door panel A. The door handle B is arranged in the middle of the fire door panel B.

A pressure sensor is arranged at the connection between the door handle and the fire door panel.

Further, the telescopic rod is provided with a spring, and the thick rod of the telescopic rod is embedded in the tunnel. The thin rod of the telescopic rod is an elastic telescopic end, one end is in contact with the spring inside the thick rod, and the other end is connected to the fire door panel A or the fire door panel B through a hinge.

Further, a sealing strip is arranged between the fire door panel A, the fire door panel B and the door opening, and the battery is installed in the electrical slot of the side wall of the tunnel.

Further, the fire door panel A and the fire door panel B are both connected to the guide rail through a plurality of pulleys, and the guide rail is located at the bottom of the door opening.

The beneficial effects of the present invention are as follows: the present invention provides a push-pull fire door, which includes a fire door panel, a telescopic rod, a door handle, a pressure sensor, a smoke control switch, an LED guide device, a battery, an electromagnet, a current controller, and a tunnel power supply. Cables, wires, signal lines, pulleys, guide rails, and push-pull fire doors will not be opened or closed vertically due to the pressure changes caused by the high-speed operation of vehicles in the tunnel due to their horizontal opening characteristics, which is beneficial to ensure driving safety and Extend the service life of the fire door, and at the same time, in order to prevent the push-pull fire door from being opened horizontally at will, a telescopic rod and an electromagnet are set. Relying on the elastic force of the inner spring of the telescopic rod and the magnetism in the left and right fire door panels, the push-pull fireproof The door is tightly closed, and a sealing strip is set between the fire door panel and the door opening to prevent the mutual interference of the pressure changes of the traffic tunnel on both sides of the communication channel. In the event of a fire, it can automatically guide personnel to evacuate to the communication channel and can indicate the opening direction of the fire door. At the same time, the electromagnet set inside the fire door panel can assist the personnel to open the fire door, and automatically close the fire door after the personnel pass, so as to achieve the purpose of evacuating personnel and preventing the spread of fire and smoke.

Description of drawings

1 is a schematic plan view of the present invention;

Fig. 2 is a sectional view of the present invention;

3 is a schematic diagram of the circuit connection of the present invention;

Figure 4 is a sectional view of a telescopic rod;

Figure 5 is a detailed diagram of the connection between the door handle and the sensor

In the picture: fire door panel A1, fire door panel B10, elastic telescopic rod 2, door handle A3, door handle B30, pressure sensor A4, pressure sensor B40, smoke control switch 5, LED guide device A6, LED guide device B60, battery 7, Electromagnet A8, electromagnet B80, current controller 9, tunnel power supply cable 50, wire 11, signal wire 12, pulley 13, guide rail 14, thick rod 15, thin rod 16, spring 17, hinge 18, door opening 19, sealing strip 20. Electrical slot 21.

Detailed ways

The present invention will be further described below in conjunction with the examples, but it should not be understood that the scope of the above-mentioned subject matter of the present invention is limited to the following examples. Without departing from the above-mentioned technical idea of the present invention, various substitutions and changes can be made according to common technical knowledge and conventional means in the field, which shall be included in the protection scope of the present invention.

A push-pull fire door includes a side sliding door installed in a door opening 19 . The door opening 19 is in the communication channel.

The split side sliding door includes a fire door panel A1 and a fire door panel B10. The size of the fire door panel A1 and the fire door panel B10 are the same, and several elastic telescopic rods 2 are installed on the sides of the two. Under normal conditions, the fire door panel A1 and the fire door panel B10 are closed, and are pressed tightly by the elastic telescopic rod 2 . That is, when there is no fire and no one passes through the communication passage, relying on the elastic force of the spring 17 in the telescopic rod 2 and the attractive force of the electromagnets 8 in the fire door panels 1 on the left and right sides, the push-pull fire door is tightly closed, and the fire door panel 1 A sealing strip 20 is arranged between the door opening 19, so as to prevent the mutual interference of pressure changes on both sides of the communication channel. An LED guide device A6 is arranged on the fire door panel A1. An LED guide device B60 is provided on the fire door panel B10. The LED guide device A6 and the LED guide device B60 are arrow signs indicating that the fire door panel A1 and the fire door panel B10 are opened to both sides.

An electromagnet A8 is installed on the fire door panel A1, and an electromagnet B80 is installed on the fire door panel B10. When the fire door panel A1 and the fire door panel B10 are closed, the magnetic poles of the electromagnet A8 and the electromagnet B80 are in contact.

It is worth noting that the power consuming devices such as the electromagnet in this embodiment are directly powered by the fire-fighting power supply system, and the storage battery of the fire-fighting system is configured as required.

A pressure sensor A4 is installed on the door handle A3 of the fire door panel A1. When the door handle A3 is pulled by hand, the pressure sensor A4 senses the pressure and transmits the signal A to the current controller 9 . In the embodiment, a door handle A3 is installed on both sides of the fire door panel A1. Each door handle A3 is U-shaped. The two ends of the door handle A3 are connected with the surface of the fire door panel A1 in the form of hinges, so that when the door handle A3 is pulled horizontally to push the fire door panel A1, the door handle A3 can be rotated at a certain angle (can be 1°~10°. ). At the same time, the pressure sensor A4 is fixed on the board surface of the fire door panel A1. The contacts of the pressure sensor A4 face the door handle A3. Under normal conditions, the door handle A3 is not in contact with the contacts of the pressure sensor A4. When the door handle A3 is pulled horizontally, the door handle A3 is rotated by a certain angle and comes into contact with the contact of the pressure sensor A4.

A pressure sensor B400 is installed on the door handle B300 of the fire door panel B10. When the door handle B300 is pulled by hand, the pressure sensor B400 senses the pressure and transmits the signal B to the current controller 9 . In the embodiment, a door handle B30 is installed on both sides of the fire door panel B10. Each door handle B30 is U-shaped. The two ends of the door handle B30 are connected with the surface of the fire door panel B10 in the form of hinges, so that when the door handle B30 is pulled horizontally to push the fire door panel B10, the door handle B30 can be rotated at a certain angle (can be 1°~10°. ). At the same time, the pressure sensor B40 is fixed on the board surface of the fire door panel B10. The contacts of the pressure sensor B40 face the door handle B30. Under normal conditions, the door handle B30 is not in contact with the contacts of the pressure sensor B40. When the door handle B30 is pulled horizontally, the door handle B30 is rotated by a certain angle and comes into contact with the contact of the pressure sensor B40.

The current controller 9 controls the positive and negative power supply directions of the electromagnet A8 and the electromagnet B80. Under normal conditions, the magnetic poles of electromagnet A8 and electromagnet B80 are opposite poles. When the current controller 9 receives the signal A and/or the signal B, the current controller 9 changes the positive and negative power supply directions of the electromagnet A8 and the electromagnet B80, and the magnetic poles of the electromagnet A8 and the electromagnet B80 are the same polarity.

The current controller 9 can keep the electromagnet A8 and the electromagnet B80 powered for 30 seconds after the pressure measured by the pressure sensor A4 and the pressure sensor B40 disappears.

During the use of the solution of this embodiment, when a fire occurs, the tunnel power supply cable is powered off 10 , the fire door is switched to the battery 7 power supply mode, the smoke control switch 5 senses the smoke and acts, connecting the LED guide device 6 to the battery 7 It is connected and emits green light intermittently, guiding people to evacuate through the communication channel and reminding people that the opening direction of the fire door is horizontal. When people pass through the fire door, the pressure sensor inside the door handle A/B senses the pressure change, resulting in current control. The action of the device 9 changes the direction of the current passing through the electromagnet 8, so that the electromagnet A and the electromagnet B inside the left and right fire door panels generate a repulsive force to assist the personnel to temporarily open the fire door. The pressure disappears, and the fire door is closed under the action of the elastic force of the spring 16 in the telescopic rod 2. At this time, the electromagnet A and the electromagnet B in the left and right fire door panels are still repulsive forces, thus preventing the fire door panels A/B from closing suddenly, As a result, the fire door panels A/B collide with each other, causing damage and pinching people. When the pressure on the door handle A/B disappears for 30 seconds, the current controller 9 controls the current to gradually change direction, and the electromagnets in the left and right fire door panels A/B have repulsive force. It gradually becomes attractive, and the fire door is gradually closed. Under the double action of the elastic force of the spring 17 in the telescopic rod 2 and the attractive force of the electromagnet, the fire door is tightly closed to prevent the fire and the smoke from spreading to the non-fire tunnel through the communication channel.

Claims (8)

1. A push-pull type fire door, comprising a split side sliding door installed in the door hole (19); the split side sliding door comprises a fire door panel A (1) and a fire door panel B (10); The fire door panel A (1) and the fire door panel B (10) have the same size, and a number of elastic telescopic rods (2) are installed on the sides of both; under normal conditions, the fire door panel A (1) and the fire door panel B (10) ) is closed, and is pushed tightly by the elastic telescopic rod (2); It is characterized in that: an electromagnet A (8) is installed on the fire door panel A (1), an electromagnet B (80) is installed on the fire door panel B (10); when the fire door panel A (1) and the fire door panel are installed with an electromagnet B (80) When B(10) is closed, the magnetic poles of the electromagnet A(8) and electromagnet B(80) are in contact; A pressure sensor A(4) is installed on the door handle A(3) of the fire door panel A(1); when the door handle A(3) is pulled by hand, the pressure sensor A(4) senses pressure and sends a current The controller (9) transmits the signal A; A pressure sensor B(40) is installed on the door handle B(30) of the fire door panel B(10); when the door handle B(30) is pulled by hand, the pressure sensor B(40) senses pressure and sends a current The controller (9) transmits the signal B; The current controller (9) controls the positive and negative power supply directions of the electromagnet A (8) and the electromagnet B (80). When the current controller (9) receives the signal A and/or the signal B, the current controller (9) changes the positive and negative power supply directions of the electromagnet A (8) and the electromagnet B (80), and the electromagnet The magnetic poles of A (8) and electromagnet B (80) in contact are the same; the current controller (9) can keep the electromagnet after the pressure measured by the pressure sensor A (4) and the pressure sensor B (40) disappears. Iron A (8) and electromagnet B (80) supply power for 30 seconds without changing the direction of positive and negative power supply. 2. A push-pull fire door according to claim 1, characterized in that: an LED guide device A (6) is arranged on the fire door panel A (1); an LED guide device A (6) is arranged on the fire door panel B (10) Device B ( 60 ); the LED guide device A ( 6 ) and the LED guide device B ( 60 ) are arrow signs indicating that the fire door panel A ( 1 ) and the fire door panel B ( 10 ) are opened to both sides. 3. A push-pull fire door according to claim 2, characterized in that: it further comprises a smoke control switch (5) and a battery (7); B (80), LED guide device A (6), LED guide device B (60), pressure sensor A (4), pressure sensor B (40) are powered by a tunnel power supply cable; in the event of a fire, the electromagnet A ( 8) The electromagnet B (80), the LED guide device A (6), the LED guide device B (60), the pressure sensor A (4), and the pressure sensor B (40) are powered by the battery (7). 4. A push-pull fire door according to claim 2, characterized in that: a smoke control switch (5) is provided on the tunnel wall on the upper part of the fire door panel A (1) and the fire door panel B (10). 5. a kind of push-pull fire door according to claim 1 is characterized in that: The door handle A(3) is arranged in the middle of the fire door panel A(1); the door handle B(30) is arranged in the middle of the fire door panel B(10); A pressure sensor is arranged at the connection between the door handle and the fire door panel. 6. A push-pull fire door according to claim 1, characterized in that: a telescopic rod (2), a spring is arranged in the telescopic rod (2), and a thick rod ( 15) Embedded in the tunnel; the thin rod (16) of the telescopic rod (2) is an elastic telescopic end, one end is in contact with the spring (17) inside the thick rod (15), and the other end is connected to the fire door panel A through a hinge (1) or fire door panel B (10). 7. A push-pull fire door according to claim 1, characterized in that: a sealing strip (20) is provided between the fire door panel A (1), the fire door panel B (10) and the door hole (19), and the battery (7) Installed in the electrical slot (21) on the side wall of the tunnel. 8. A push-pull fire door according to claim 1, wherein the fire door panel A (1) and the fire door panel B (10) are connected to the guide rail (14) through a plurality of pulleys (13), The guide rail (14) is located at the bottom of the door opening.

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