A fire safety door with active cooling function

Abstract

The present invention relates to the technical field of fire safety doors, and specifically to a fire safety door with an active cooling function, comprising a heat insulation board, an opening is provided on the heat insulation board, a reserved groove is provided on the inner wall of the opening, the reserved groove is arranged near a stairwell, a door panel is hingedly connected to the heat insulation board through a hinge, the position of the door panel corresponds to the position of the opening, a shell is fixedly installed on the heat insulation board on one side of the door panel, the shell is located on the side of the heat insulation board facing the stairwell, a sealing mechanism for preventing leakage of harmful gases is arranged inside the shell, and an air supply mechanism for providing oxygen is arranged on the top of the sealing mechanism; the extended end of the electric push rod is controlled to shrink to the shortest, so that the first piston slides downward, and the air in the water supply cylinder is squeezed into the air intake pipe by the first piston, and then injected into the air intake cavity of the rubber ring through the air intake pipe, so that the rubber ring expands, the gap between the door panel and the opening is blocked, and the toxic gas is effectively isolated.

Description

Technical Field

[0001] The invention relates to the technical field of fire safety doors, in particular to a fire safety door with an active cooling function. Background Art

[0002] Fire safety doors refer to doors that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. They are fireproof partitions with a certain degree of fire resistance, which are installed in fire compartments, evacuation stairwells, vertical shafts, etc. When a fire occurs, it is necessary to evacuate the people in the building in time, and the fire safety doors can be used to block the toxic gases and high temperatures in the corridors to ensure the safety of the people when they go downstairs.

[0003] Since people often pass between adjacent floors, the existing fire safety doors need to be opened and closed frequently, resulting in poor sealing of the fire safety doors. In the event of a fire, the toxic gases cannot be effectively isolated. At the same time, after a fire occurs, the temperature in the corridor will rise rapidly. At this time, the temperatures on the two sides of the fire safety door are different, causing the fire safety door to deform and break, and toxic gases to leak into the stairwell, which can easily affect the safety of people going downstairs in the stairwell. Summary of the invention

[0004] The technical problems solved by this solution are:

[0005] (1) How to solve the problem that the fire safety door has poor sealing performance due to the frequent passage of people between adjacent floors, and cannot effectively isolate toxic gases in the event of a fire;

[0006] (2) How to solve the problem that the two sides of the fire safety door have different temperatures, causing the fire safety door to deform and break, and toxic gases to leak into the stairwell, affecting the safety of people going down the stairwell.

[0007] The object of the present invention can be achieved by the following technical solutions: A fire safety door with active cooling function, comprising an insulation board, an opening is provided on the insulation board, a reserved groove is provided on the inner wall of the opening, the reserved groove is arranged near the stairwell, a door panel is hinged on the insulation board through a hinge, the position of the door panel corresponds to the position of the opening, a shell is fixedly installed on the insulation board on one side of the door panel, the shell is located on the side of the insulation board facing the stairwell, a sealing mechanism for preventing leakage of harmful gases is arranged inside the shell, and an air supply mechanism for providing oxygen is arranged on the top of the sealing mechanism;

[0008] The sealing mechanism includes a water supply cylinder fixedly connected to the inner wall of the shell, the top of the water supply cylinder is connected to a water supply pipe, the output end of the water supply pipe passes through the shell and the insulation board, and is provided with a cooling unit for spraying water on the insulation board, a rubber ring is provided between the reserved groove and the door panel, an air intake cavity is opened inside the rubber ring, the bottom of the water supply cylinder is connected to an air intake pipe, and the output end of the air intake pipe is connected to the air intake cavity of the rubber ring.

[0009] A further technical improvement of the present invention is that an electric push rod is fixedly arranged at the inner bottom of the outer shell, and the extended end of the electric push rod movably penetrates into the water supply cylinder, and the extended end of the electric push rod is also fixedly installed with a first piston slidingly connected to the inner wall of the water supply cylinder, and the top of the first piston is also fixedly connected to a transmission rod, and the top end of the transmission rod movably penetrates the water supply cylinder.

[0010] A further technical improvement of the present invention is that a water pump is arranged in the outer shell on one side of the electric push rod, the output end of the water pump is connected with a water inlet pipe, the output end of the water inlet pipe is connected with the side bottom of the water supply cylinder, and a one-way valve is fixedly installed in the middle of the water inlet pipe, and the opening direction of the one-way valve is the same as the direction in which the clean water in the water inlet pipe enters the water supply cylinder.

[0011] A further technical improvement of the present invention is that a water tank is fixedly installed on the insulation board below the shell, the side of the water tank is connected to the fire-fighting pipe in the corridor through a guide pipe, a water inlet valve is fixedly installed in the middle of the guide pipe, and a controller is also fixedly provided on the water tank. The controller is a prior art, and the input end of the water pump passes through the shell and the water tank and is located at the bottom of the inner wall of the water tank.

[0012] A further technical improvement of the present invention is that: the cooling unit includes a distribution pipe fixedly installed on the top of the insulation board, the distribution pipe is located on the side of the insulation board facing the corridor, and the middle part of the distribution pipe is connected to the output end of the water supply pipe, and a plurality of water spray heads are connected at equal distances on the bottom outer wall of the distribution pipe, and the plurality of water spray heads are all arranged toward the insulation board; harmful gases are detected by a smoke alarm, and the information is transmitted to a controller, and an instruction is issued by the controller to control the extended end of the electric push rod to shrink to the shortest, so that the first piston slides downward to its bottom and contacts the inner wall of the water supply cylinder. In this process, the air in the water supply cylinder is squeezed into the air intake pipe by the first piston, and then injected into the air intake cavity of the rubber ring through the air intake pipe, so that the rubber ring expands, blocks the gap between the door panel and the opening, and effectively isolates the toxic gas.

[0013] A further technical improvement of the present invention is that the air supply mechanism includes an adjusting cylinder fixedly connected to the inner wall of the outer shell, the top side of the adjusting cylinder is connected to a first air outlet pipe, the output end of the first air outlet pipe passes through the outer shell and the insulation board, and the output end of the first air outlet pipe is arranged toward the corridor, and the bottom side of the adjusting cylinder is connected to a second air outlet pipe, the output end of the second air outlet pipe passes through the outer shell, and the output end of the second air outlet pipe is arranged toward the stairwell.

[0014] A further technical improvement of the present invention is that: a transmission frame is arranged on the inner wall of the shell through a pin shaft, a lifting rod is arranged on one side of the transmission frame, the top end of the lifting rod movably penetrates the adjusting cylinder and is fixedly connected with a second piston, the bottom end of the lifting rod is movably connected to one end of the transmission frame through a first lever, and the top end of the transmission rod is movably connected to the other end of the transmission frame through a second lever; when the extended end of the electric push rod is retracted to the shortest, the top surface of the first piston is located below the output end of the water inlet pipe, the water pump is turned on, and the clean water in the water storage tank is injected into the water supply cylinder, and then along the water supply The pipe is injected into the distribution pipe, and clean water is evenly sprayed onto the side of the insulation board facing the corridor through several sprinkler heads to cool it down, prevent the fire safety door from deformation and damage, and prevent toxic gas from leaking into the stairwell. At the same time, in the process of the first piston sliding downward, the transmission rod is pulled downward to drive the transmission frame to flip, so that the lifting rod and the second piston slide upward to above the output end of the air pump. At this time, the outside air is blown into the stairwell along the second air outlet pipe, increasing the oxygen content in the corridor, ensuring the normal breathing of the people in the corridor, and avoiding affecting the safety of the people going downstairs.

[0015] A further technical improvement of the present invention is that an air pump is fixedly connected to the outer wall of the shell, the input end of the air pump is connected to a connecting pipe, the input end of the connecting pipe passes through the outer wall of the building, and the output end of the air pump is connected to the middle of the regulating cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the present invention is in use, harmful gases are detected by the smoke alarm, and the information is transmitted to the controller. The controller issues instructions to control the extended end of the electric push rod to shrink to the shortest, so that the first piston slides downward to its bottom and contacts the inner wall of the water supply cylinder. In this process, the air in the water supply cylinder is squeezed into the air intake pipe by the first piston, and then injected into the air intake cavity of the rubber ring through the air intake pipe, so that the rubber ring expands and blocks the gap between the door panel and the opening, thereby effectively isolating the toxic gas.

[0018] When the present invention is in use, when the extended end of the electric push rod is contracted to the shortest, the top surface of the first piston is located below the output end of the water inlet pipe, the water pump is turned on, and the clean water in the water tank is injected into the water supply cylinder, and then injected into the distribution pipe along the water supply pipe. The clean water is evenly sprayed on the side of the insulation board facing the corridor through a plurality of sprinkler heads to cool it down, prevent the fire safety door from deformation and damage, and prevent toxic gas from leaking into the stairwell. At the same time, in the process of the first piston sliding downward, the transmission rod is pulled downward to drive the transmission frame to flip, so that the lifting rod and the second piston slide upward to above the output end of the air pump. At this time, the external air is blown into the stairwell along the second outlet pipe, increasing the oxygen content in the corridor, ensuring the normal breathing of the people in the corridor, and avoiding affecting the safety of the people going downstairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the side structure of the heat insulation board of the present invention facing the stairwell;

[0021] Figure 2 It is a schematic diagram of the sealing mechanism structure of the present invention;

[0022] Figure 3 For the present invention Figure 2 A magnified view of the structure at center;

[0023] Figure 4 It is a three-dimensional schematic diagram of the structure of the rubber ring and the air intake pipe of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the gas supply mechanism of the present invention;

[0025] Figure 6 This is a schematic diagram of the side structure of the heat insulation board of the present invention facing the corridor.

[0026] In the figure: 1. insulation board; 2. door panel; 3. water storage tank; 4. guide pipe; 5. controller; 6. shell; 7. sealing mechanism; 8. air supply mechanism; 9. reserved groove; 10. sprinkler head; 11. smoke alarm; 12. distribution pipe; 701. transmission rod; 702. first piston; 703. water pump; 704. water inlet pipe; 705. electric push rod; 706. water supply pipe; 707. rubber ring; 708. air inlet pipe; 709. water supply cylinder; 801. first air outlet pipe; 802. second air outlet pipe; 803. second lever; 804. transmission frame; 805. lifting rod; 806. second piston; 807. connecting pipe; 808. air pump; 809. regulating cylinder. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 6 As shown, a fire safety door with active cooling function includes an insulation board 1, an opening is provided on the insulation board 1, a reserved groove 9 is provided on the inner wall of the opening, the reserved groove 9 is arranged near the stairwell, a door panel 2 is hinged on the insulation board 1 through a hinge, the position of the door panel 2 corresponds to the position of the opening, an outer shell 6 is fixedly installed on the insulation board 1 on one side of the door panel 2, the outer shell 6 is located on the side of the insulation board 1 facing the stairwell, a sealing mechanism 7 for preventing leakage of harmful gases is arranged inside the outer shell 6, and an air supply mechanism 8 for providing oxygen is arranged on the top of the sealing mechanism 7.

[0029] See also Figure 1-Figure 6 As shown, the above-mentioned sealing mechanism 7 includes a water supply cylinder 709 fixedly connected to the inner wall of the outer shell 6, the top of the water supply cylinder 709 is connected to the water supply pipe 706, the output end of the water supply pipe 706 passes through the outer shell 6 and the insulation board 1, and is provided with a cooling unit for spraying water on the insulation board 1, a rubber ring 707 is provided between the reserved groove 9 and the door panel 2, an air intake cavity is opened inside the rubber ring 707, the bottom of the water supply cylinder 709 is connected to the air intake pipe 708, and the output end of the air intake pipe 708 is connected to the air intake cavity of the rubber ring 707.

[0030] See also Figure 1-Figure 6 As shown, an electric push rod 705 is fixedly installed at the inner bottom of the above-mentioned shell 6, and the protruding end of the electric push rod 705 can be movably inserted into the water supply cylinder 709, and the protruding end of the electric push rod 705 is also fixedly installed with a first piston 702 that is slidably connected to the inner wall of the water supply cylinder 709, and the top of the first piston 702 is also fixedly connected to a transmission rod 701, and the top end of the transmission rod 701 can be movably inserted into the water supply cylinder 709.

[0031] See also Figure 1-Figure 6 As shown, a water pump 703 is arranged in the housing 6 on one side of the above-mentioned electric push rod 705, and the output end of the water pump 703 is connected to the water inlet pipe 704, the output end of the water inlet pipe 704 is connected to the side bottom of the water supply cylinder 709, and a one-way valve is fixedly installed in the middle of the water inlet pipe 704, and the opening direction of the one-way valve is the same as the direction in which the clean water in the water inlet pipe 704 enters the water supply cylinder 709.

[0032] See also Figure 1-Figure 6As shown, a water tank 3 is fixedly installed on the insulation board 1 below the above-mentioned shell 6. The side of the water tank 3 is connected to the fire-fighting pipe in the corridor through a guide pipe 4. A water inlet valve is fixedly installed in the middle of the guide pipe 4. A controller 5 is also fixedly provided on the water tank 3. The controller 5 is a prior art. The input end of the water pump 703 passes through the shell 6 and the water tank 3, and is located at the bottom of the inner wall of the water tank 3.

[0033] See also Figure 1-Figure 6 As shown, the above-mentioned cooling unit includes a distribution pipe 12 fixedly installed on the top of the insulation board 1, the distribution pipe 12 is located on the side of the insulation board 1 facing the corridor, and the middle part of the distribution pipe 12 is connected to the output end of the water supply pipe 706, and a plurality of water spray heads 10 are connected to the outer wall of the bottom of the distribution pipe 12 at equal distances, and the plurality of water spray heads 10 are all arranged toward the insulation board 1; the harmful gas is detected by the smoke alarm 11, and the information is transmitted to the controller 5, and the controller 5 issues an instruction to control the extended end of the electric push rod 705 to shrink to the shortest, so that the first piston 702 slides downward to its bottom and contacts the inner wall of the water supply cylinder 709. In this process, the air in the water supply cylinder 709 is squeezed into the air intake pipe 708 by the first piston 702, and then injected into the air intake cavity of the rubber ring 707 through the air intake pipe 708, so that the rubber ring 707 expands, and the gap between the door panel 2 and the opening is blocked, thereby effectively isolating the toxic gas.

[0034] See also Figure 1-Figure 6 As shown, the air supply mechanism 8 includes an adjusting cylinder 809 fixedly connected to the inner wall of the outer shell 6, and the top of the side of the adjusting cylinder 809 is connected to a first air outlet pipe 801, the output end of the first air outlet pipe 801 passes through the outer shell 6 and the insulation board 1, and the output end of the first air outlet pipe 801 is arranged toward the corridor, and the bottom of the side of the adjusting cylinder 809 is connected to a second air outlet pipe 802, the output end of the second air outlet pipe 802 passes through the outer shell 6, and the output end of the second air outlet pipe 802 is arranged toward the stairwell.

[0035] See also Figure 1-Figure 6As shown, the inner wall of the above-mentioned shell 6 is provided with a transmission frame 804 through a pin shaft rotation, and a lifting rod 805 is provided on one side of the transmission frame 804. The top end of the lifting rod 805 movably penetrates the adjusting cylinder 809 and is fixedly connected with the second piston 806. The bottom end of the lifting rod 805 is movably connected to one end of the transmission frame 804 through the first lever, and the top end of the transmission rod 701 is movably connected to the other end of the transmission frame 804 through the second lever 803. When the extended end of the electric push rod 705 is retracted to the shortest, the top surface of the first piston 702 is located below the output end of the water inlet pipe 704, the water pump 703 is turned on, and the clean water in the water storage tank 3 is injected into the water supply cylinder 709, and then along the The water supply pipe 706 is injected into the distribution pipe 12, and clean water is evenly sprayed onto the side of the insulation board 1 facing the corridor through a plurality of sprinkler heads 10 to cool it down, prevent the fire safety door from deformation and damage, and prevent toxic gas from leaking into the stairwell. At the same time, in the process of the first piston 702 sliding downward, the transmission rod 701 is pulled downward, driving the transmission frame 804 to flip, so that the lifting rod 805 and the second piston 806 slide upward to above the output end of the air pump 808. At this time, the outside air is blown into the stairwell along the second air outlet pipe 802, increasing the oxygen content in the corridor, ensuring the normal breathing of the people in the corridor, and avoiding affecting the safety of the people going downstairs.

[0036] See also Figure 1 and Figure 5 As shown, an air pump 808 is fixedly connected to the outer wall of the above-mentioned shell 6, and the input end of the air pump 808 is connected to a connecting pipe 807. The input end of the connecting pipe 807 passes through the outer wall of the building, and the output end of the air pump 808 is connected to the middle of the adjusting cylinder 809.

[0037] See also Figure 1 and Figure 6 As shown, a smoke alarm 11 is fixedly installed on the top of the side of the insulation board 1 facing the corridor. The smoke alarm 11 is a prior art, and the output end of the smoke alarm 11 is electrically connected to the input end of the controller 5.

[0038] Working principle: When the present invention is used, first, Figure 1 , Figure 5 and Figure 6 As shown, when there is no fire in the corridor and room of the building, the air pump 808 is turned on. At this time, the extended end of the electric push rod 705 is in the longest state, so that the second piston 806 is located below the output end of the air pump 808. The air pump 808 draws external air into the regulating cylinder 809, and then blows it into the corridor along the first outlet pipe 801, thereby increasing the oxygen content in the corridor and effectively improving the comfort of people in the building; Figure 1 , Figure 2 and Figure 4As shown, when a fire occurs in the building, harmful gases are detected by the smoke alarm 11, and the information is transmitted to the controller 5. The controller 5 issues a command to control the extended end of the electric push rod 705 to shrink to the shortest, so that the first piston 702 slides downward to its bottom and contacts the inner wall of the water supply cylinder 709. In this process, the air in the water supply cylinder 709 is squeezed into the air intake pipe 708 by the first piston 702, and then injected into the air intake cavity of the rubber ring 707 through the air intake pipe 708, so that the rubber ring 707 expands, and the gap between the door panel 2 and the opening is blocked, thereby effectively isolating the toxic gas; as shown in FIG. Figure 2 and Figure 6 As shown, when the extended end of the electric push rod 705 is retracted to the shortest, the top surface of the first piston 702 is located below the output end of the water inlet pipe 704, the water pump 703 is turned on, and the clean water in the water tank 3 is injected into the water supply cylinder 709, and then injected into the distribution pipe 12 along the water supply pipe 706. The clean water is evenly sprayed on the side of the insulation board 1 facing the corridor through a plurality of sprinkler heads 10 to cool it down, prevent the fire safety door from deformation and damage, and prevent toxic gas from leaking into the stairwell. At the same time, Figure 2 , Figure 5 and Figure 6 As shown in the figure, during the downward sliding of the first piston 702, the transmission rod 701 is pulled downward, driving the transmission frame 804 to flip, so that the lifting rod 805 and the second piston 806 slide upward to above the output end of the air pump 808. At this time, the external air is blown into the stairwell along the second air outlet pipe 802, increasing the oxygen content in the corridor, ensuring the normal breathing of the people in the corridor, and avoiding affecting the safety of the people going downstairs; Figure 1 As shown, when the water content in the water tank 3 is insufficient, the water inlet valve is opened in time to inject the clean water in the fire protection pipe into the water tank 3 through the guide pipe 4.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A fire safety door with an active cooling function, comprising a heat insulation board (1), an opening being formed on the heat insulation board (1), a reserved groove (9) being formed on the inner wall of the opening, the reserved groove (9) being arranged close to a staircase, a door panel (2) being hingedly connected to the heat insulation board (1), the position of the door panel (2) corresponding to the position of the opening, characterized in that: A shell (6) is fixedly mounted on the heat insulation board (1) on one side of the door panel (2); the shell (6) is located on the side of the heat insulation board (1) facing the stairwell; a sealing mechanism (7) for preventing leakage of harmful gases is provided inside the shell (6); and a gas supply mechanism (8) for providing oxygen is provided on the top of the sealing mechanism (7); The sealing mechanism (7) comprises a water supply cylinder (709) fixedly connected to the inner wall of the housing (6); the top of the water supply cylinder (709) is connected to a water supply pipe (706); the output end of the water supply pipe (706) is provided with a cooling unit for spraying water on the heat insulation board (1); a rubber ring (707) is provided between the reserved groove (9) and the door panel (2); an air intake cavity is provided inside the rubber ring (707); the bottom of the water supply cylinder (709) is connected to an air intake pipe (708); the output end of the air intake pipe (708) is connected to the air intake cavity of the rubber ring (707); an electric push rod (705) is fixedly provided at the bottom of the housing (6); the extension end of the electric push rod (705) is provided with a plurality of air intake pipes (708) and a plurality of air intake pipes (708) are provided at the bottom of the housing (6); The outlet end movably passes through the water supply cylinder (709) and is fixedly installed with a first piston (702); the top of the first piston (702) is also fixedly connected to a transmission rod (701); the top end of the transmission rod (701) movably passes through the water supply cylinder (709); a transmission frame (804) is rotatably provided on the inner wall of the outer shell (6); a lifting rod (805) is provided on one side of the transmission frame (804); the top end of the lifting rod (805) movably passes through the adjustment cylinder (809) and is fixedly connected to a second piston (806); the bottom end of the lifting rod (805) is movably connected to one end of the transmission frame (804); and the top end of the transmission rod (701) is movably connected to the other end of the transmission frame (804).

2. A fire safety door with active cooling function according to claim 1, characterized in that: A water pump (703) is provided on one side of the electric push rod (705); the output end of the water pump (703) is connected to a water inlet pipe (704); the output end of the water inlet pipe (704) is connected to the bottom of the side of the water supply cylinder (709); and a one-way valve is fixedly installed in the middle of the water inlet pipe (704).

3. A fire safety door with active cooling function according to claim 2, characterized in that: A water tank (3) is fixedly mounted on the heat insulation board (1) below the housing (6), a controller (5) is also fixedly arranged on the water tank (3), and an input end of the water pump (703) passes through the water tank (3).

4. The fire safety door with active cooling function according to claim 1, characterized in that: The cooling unit comprises a distribution pipe (12) fixedly mounted on the top of the insulation board (1), the distribution pipe (12) being located on the side of the insulation board (1) facing the corridor, and the middle of the distribution pipe (12) being connected to the output end of the water supply pipe (706), and the bottom of the distribution pipe (12) being connected to a plurality of water spray heads (10) at equal distances, and the water spray heads (10) being arranged facing the insulation board (1).

5. The fire safety door with active cooling function according to claim 1, characterized in that: The air supply mechanism (8) comprises an adjusting cylinder (809) fixedly connected to the inner wall of the outer shell (6); the top of the side of the adjusting cylinder (809) is connected to a first air outlet pipe (801); the output end of the first air outlet pipe (801) passes through the heat insulation board (1), and the output end of the first air outlet pipe (801) is arranged toward the corridor; the bottom of the side of the adjusting cylinder (809) is connected to a second air outlet pipe (802), and the output end of the second air outlet pipe (802) is arranged toward the stairwell.

6. The fire safety door with active cooling function according to claim 1, characterized in that: An air pump (808) is fixedly connected to the outer wall of the housing (6); the input end of the air pump (808) is connected to a connecting pipe (807); the input end of the connecting pipe (807) passes through the outer wall of the building; and the output end of the air pump (808) is connected to the middle of the regulating cylinder (809).

Images