An emergency-sealed smoke-proof and flame-retardant fire door

Abstract

This utility model discloses an emergency sealed smoke-proof and flame-retardant fireproof door, relating to the field of fire door technology. It includes a door frame and a door body. One end of the door frame has a ventilation slot, and an installation cavity is formed inside. A limiting block is fixedly installed on the inner wall of the ventilation slot, and two installation slots are formed. A moving component is provided on the inner wall of the second installation slot. The moving component includes a screw, and a locking block is threaded onto the outer wall of the screw. The locking block slides against the inner wall of the second installation slot. A rotating component is provided inside the installation cavity, including a rotating shaft and a rotating shaft. Through the mutual cooperation between louvers one and two, the locking block, the limiting block, and the rotating component, when the rotating component drives louvers one and two to rotate to a vertical position, the inclined surfaces of louvers one and two, the locking block, and the limiting block will fit together, thereby improving the sealing effect of the ventilation slot.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, specifically to an emergency-sealed smoke-proof and flame-retardant fire door. Background Technology

[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity, and heat insulation for a certain period of time. They are fire-resistant partitions with a certain degree of fire resistance, installed in fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the functions of ordinary doors, they also have the function of preventing the spread of fire and smoke, and can stop the spread of fire for a certain period of time to ensure the evacuation of personnel.

[0003] Chinese patent CN219431711U discloses an emergency closed-type smoke-proof and flame-retardant fireproof door, including a door frame, a door body is provided inside the door frame, and fireproof filler is installed on one side of the inner wall of the door body. A sealing gasket is connected to the outer wall of the door body, and a mounting groove is opened on the other side of the inner wall of the door body. A miniature push rod is embedded in the mounting groove, and a stop is connected to the power output end of the miniature push rod.

[0004] Although the emergency closed-slit smoke-proof and flame-retardant fireproof door of this utility model and the prior art closes and opens the ventilation channel by setting louvers, the two louver structures cannot fit together, resulting in poor sealing and thus insignificant dust prevention effect. At the same time, the louver size is large, and when the ventilation channel is opened, the louver structure may touch other structures when rotating, and it will also affect the ventilation efficiency, which has great limitations. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an emergency-sealed smoke-proof and flame-retardant fire door to overcome the aforementioned technical problems in existing related technologies.

[0006] An emergency closed-type smoke-proof and flame-retardant fireproof door includes a door frame and a door body. One end of the door frame has a ventilation slot and an internal mounting cavity. A limit block is fixedly installed on the inner wall of the ventilation slot, which also has a first mounting groove and a second mounting groove. The inner wall of the second mounting groove has a moving component, including a screw rod. A locking block is threaded onto the outer wall of the screw rod, and the locking block slides against the inner wall of the second mounting groove. The mounting cavity contains a rotating component, including a first rotating shaft and a second rotating shaft. Louvers one and two are fixedly fitted onto the outer walls of the first and second rotating shafts, respectively. An exhaust component is installed in the first mounting groove. The door body is installed at one end of the door frame.

[0007] Preferably, one side of the locking block and the limiting block is an inclined surface, and both ends of the first louver and the second louver are inclined surfaces. After the first louver and the second louver are rotated, two of their surfaces are in contact with each other, the locking block abuts against one side of the first louver, and the second louver abuts against one side of the limiting block.

[0008] Preferably, the rotating assembly further includes a worm, a first turbine, and a second turbine. The worm is rotatably connected to the inner wall of the mounting cavity. The first and second rotating shafts are both rotatably connected to the door frame. The first and second turbines are respectively fixedly sleeved on the outer walls of the first and second turbines and are both meshed with the worm.

[0009] Preferably, the rotating assembly further includes a motor, which is fixedly installed inside the mounting cavity, and one end of the worm gear is fixedly connected to the output end of the motor.

[0010] Preferably, the moving component further includes a second motor, which is fixedly installed inside the second mounting slot, and the screw is fixedly connected to the output end of the second motor.

[0011] Preferably, the exhaust assembly includes a sealing plate and a plurality of exhaust fans, the sealing plate being fixedly installed on the inner wall of the mounting groove, and the exhaust fans being fixedly installed inside the sealing plate.

[0012] Preferably, the exhaust assembly further includes a plurality of exhaust pipes, each of which is fixedly connected to a plurality of exhaust fans.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows: 1. This utility model provides an emergency closed-type smoke-proof and flame-retardant fireproof door. Through the cooperation between louver one, louver two, locking block, limiting block and rotating component, when the rotating component drives louver one and louver two to rotate to a vertical state, the inclined surfaces of louver one, louver two, locking block and limiting block will fit together, thereby improving the sealing effect of the ventilation slot.

[0014] 2. This utility model provides an emergency closed-type smoke-proof and flame-retardant fireproof door. Through the cooperation between louver one, louver two, locking block, limiting block, moving component and rotating component, the rotating component drives louver one and louver two to rotate to a horizontal state, thereby opening the ventilation slot. Then, after the moving component operates, it can drive the locking block to move vertically upward, thereby expanding the opening range of the ventilation slot and improving the smoke exhaust efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a cross-sectional structural diagram of the door frame in this utility model; Figure 3 This is a cross-sectional structural diagram of the exhaust assembly in this utility model; Figure 4 This is a cross-sectional structural diagram of a part of the present invention; Figure 5 for Figure 4 An enlarged schematic diagram of part A in the middle; Figure 6 This is a cross-sectional structural diagram of the door frame of this utility model.

[0016] In the picture: 1. Door frame; 101. Ventilation slot; 102. Mounting slot one; 103. Mounting slot two; 104. Mounting cavity; 2. Door body; 3. Locking block; 4. Louver one; 5. Louver two; 6. Limiting block; 7. Rotating assembly; 701. Motor one; 702. Worm gear; 703. Rotating shaft one; 704. Rotating shaft two; 705. Turbine one; 706. Turbine two; 801. Motor two; 802. Screw; 9. Exhaust assembly; 901. Sealing plate; 902. Exhaust fan; 903. Exhaust pipe. Detailed Implementation

[0017] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments: like Figure 1-6As shown, this utility model provides an emergency closed-type smoke-proof and flame-retardant fireproof door, including a door frame 1 and a door body 2. One end of the door frame 1 has a ventilation groove 101, and an installation cavity 104 is provided inside. A limit block 6 is fixedly installed on the inner wall of the ventilation groove 101, and two installation grooves 102 and 103 are provided. A moving component is provided on the inner wall of the second installation groove 103, including a screw 802. A locking block 3 is threaded onto the outer wall of the screw 802, and the locking block 3 slides against the inner wall of the second installation groove 103. A rotating component 7 is provided inside the installation cavity 104, including a rotating shaft 703 and a rotating shaft 704. Louvers 4 and 5 are respectively fixedly sleeved on the outer walls of the rotating shaft 703 and 704. An exhaust component 9 is provided inside the first installation groove 102. The door body 2 is installed... One end of the door frame 1 has a beveled side of the locking block 3 and the limiting block 6. Both ends of the louver 1 4 and louver 2 5 are beveled sides. After the louver 1 4 and louver 2 5 rotate, two sides of them are in contact. The locking block 3 abuts against one side of the louver 1 4, and the louver 2 5 abuts against one side of the limiting block 6. The rotating assembly 7 also includes a worm gear 702, a turbine 1 705, and a turbine 2 706. The worm gear 702 is rotatably connected to the inner wall of the mounting cavity 104. The rotating shaft 1 703 and the rotating shaft 2 704 are both rotatably connected to the door frame 1. The turbine 1 705 and the turbine 2 706 are respectively fixedly sleeved on the outer walls of the turbine 1 705 and the turbine 2 706, and both mesh with the worm gear 702. The rotating assembly 7 also includes a motor 1 701. The motor 1 701 is fixedly installed inside the mounting cavity 104. One end of the worm gear 702 is fixedly connected to the output end of the motor 1 701.

[0018] Ventilation slot 101 is sealed by latch block 3, louver one 4, louver two 5, and limit block 6 to prevent dust and impurities from entering when smoke is not being exhausted. When smoke is needed, the operator starts motor one 701. When the output end of motor one 701 rotates, it drives worm gear 702 to rotate. When worm gear 702 rotates, it meshes with turbine one 705 and turbine two 706, thereby driving turbine one 705 and turbine two 706 to rotate. After turbine one 705 and turbine two 706 rotate, they respectively drive shaft one 703 and shaft two 704 to rotate. When the rotating shaft 1 703 and the rotating shaft 2 704 rotate, they drive the louvers 1 4 and louvers 2 5 to rotate, so that the louvers 1 4 and louvers 2 5 rotate to a horizontal state, thereby opening the ventilation slot 101 to discharge smoke. Since the locking block 3, the louvers 1 4, the louvers 2 5 and the limiting block 6 are all provided with inclined surfaces, the louvers 1 4 and the louvers 2 5 will not touch each other when rotating. This not only improves the sealing effect of the ventilation slot 101, but also ensures that the louvers 1 4 and the louvers 2 5 will not be damaged by friction after long-term use, making it highly applicable. Since the width of the door frame 1 is not too large, the grooving range of the ventilation slot 101 will be related to the size of louver 14 and louver 25. If it is closed by louver 14 and louver 25 alone, it will inevitably reduce the grooving size of the ventilation slot 101. Therefore, after expanding the grooving size of the ventilation slot 101, it can also be closed by the locking block 3, the limiting block 6, louver 14 and louver 25. When louver 14 and louver 25 rotate, they will not touch other structures. The door frame 1 and the door body 2 are existing technologies and will not be explained here.

[0019] like Figure 2 As shown, in one embodiment, the moving component further includes a second motor 801, which is fixedly installed inside the second mounting slot 103, and a screw 802 is fixedly connected to the output end of the second motor 801.

[0020] After louvers 1 and 2 rotate to a horizontal position, motor 2 801 is started. When the output end of motor 2 801 rotates, it drives screw 802 to rotate. When screw 802 rotates, it engages with the locking block 3, thereby causing the locking block 3 to move vertically upward in the mounting slot 2 103, so that the locking block 3 moves away from louver 1 and expands the opening range of ventilation slot 101, thereby improving the flue gas emission efficiency.

[0021] like Figure 3 As shown, in one embodiment, the exhaust assembly 9 includes a sealing plate 901 and a plurality of exhaust fans 902. The sealing plate 901 is fixedly installed on the inner wall of the mounting groove 102, and the exhaust fans 902 are fixedly installed inside the sealing plate 901. The exhaust assembly 9 also includes a plurality of exhaust pipes 903, which are respectively fixedly connected to the plurality of exhaust fans 902.

[0022] The exhaust assembly 9 is used to expel the flue gas, preventing it from accumulating and gathering near the equipment, and further improving the exhaust efficiency.

[0023] The working principle of this emergency sealed smoke-proof and flame-retardant fire door will be explained in detail below: Ventilation slot 101 is sealed by latch block 3, louver one 4, louver two 5, and limit block 6 to prevent dust and impurities from entering when smoke is not being exhausted. When smoke is needed, the operator starts motor one 701. When the output end of motor one 701 rotates, it drives worm gear 702 to rotate. When worm gear 702 rotates, it meshes with turbine one 705 and turbine two 706, thereby driving turbine one 705 and turbine two 706 to rotate. After turbine one 705 and turbine two 706 rotate, they respectively drive shaft one 703 and shaft two 704 to rotate. When the rotating shaft 1 703 and the rotating shaft 2 704 rotate, they drive the louvers 1 4 and louvers 2 5 to rotate, so that the louvers 1 4 and louvers 2 5 rotate to a horizontal state, thereby opening the ventilation slot 101 to discharge smoke. Since the locking block 3, the louvers 1 4, the louvers 2 5 and the limiting block 6 are all provided with inclined surfaces, the louvers 1 4 and the louvers 2 5 will not touch each other when rotating. This not only improves the sealing effect of the ventilation slot 101, but also ensures that the louvers 1 4 and the louvers 2 5 will not be damaged by friction after long-term use, making it highly applicable. After louvers 1 and 2 rotate to a horizontal position, motor 2 801 is started. When the output end of motor 2 801 rotates, it drives screw 802 to rotate. When screw 802 rotates, it engages with the locking block 3, thereby causing the locking block 3 to move vertically upward in the mounting slot 2 103, so that the locking block 3 moves away from louver 1 and expands the opening range of ventilation slot 101, thereby improving the flue gas emission efficiency.

[0024] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An emergency sealed smoke-proof and flame-retardant fireproof door, comprising a door frame (1) and a door body (2), characterized in that: One end of the door frame (1) is provided with a ventilation slot (101) and an installation cavity (104) is provided inside. A limit block (6) is fixedly installed on the inner wall of the ventilation slot (101), and an installation slot one (102) and an installation slot two (103) are provided. The inner wall of the installation slot two (103) is provided with a moving component. The moving component includes a screw (802). A locking block (3) is threaded onto the outer wall of the screw (802). The locking block (3) is connected to the door frame (1) with the door frame (104). The inner wall of the second mounting groove (103) is slidably fitted. The interior of the mounting cavity (104) is provided with a rotating assembly (7). The rotating assembly (7) includes a first rotating shaft (703) and a second rotating shaft (704). The outer walls of the first rotating shaft (703) and the second rotating shaft (704) are respectively fixedly fitted with a first louver (4) and a second louver (5). An exhaust assembly (9) is provided in the first mounting groove (102). The door body (2) is installed at one end of the door frame (1).

2. The emergency sealed smoke-proof and flame-retardant fireproof door according to claim 1, characterized in that: One side of the locking block (3) and the limiting block (6) is an inclined surface, and both ends of the first louver (4) and the second louver (5) are inclined surfaces. After the first louver (4) and the second louver (5) are rotated, two of their surfaces are in contact. The locking block (3) abuts against one side of the first louver (4), and the second louver (5) abuts against one side of the limiting block (6).

3. The emergency sealed-seale type smoke-proof and flame-retardant fireproof door according to claim 1, characterized in that: The rotating assembly (7) further includes a worm (702), a first turbine (705), and a second turbine (706). The worm (702) is rotatably connected to the inner wall of the mounting cavity (104). The first rotating shaft (703) and the second rotating shaft (704) are both rotatably connected to the door frame (1). The first turbine (705) and the second turbine (706) are respectively fixedly sleeved on the outer walls of the first turbine (705) and the second turbine (706), and both mesh with the worm (702).

4. The emergency sealed type smoke-proof and flame-retardant fireproof door according to claim 3, characterized in that: The rotating assembly (7) also includes a motor (701), which is fixedly installed inside the mounting cavity (104), and one end of the worm (702) is fixedly connected to the output end of the motor (701).

5. An emergency sealed-seale smoke-proof and flame-retardant fireproof door according to claim 1, characterized in that: The moving component also includes a second motor (801), which is fixedly installed inside the second mounting slot (103), and the screw (802) is fixedly connected to the output end of the second motor (801).

6. The emergency sealed-seale type smoke-proof and flame-retardant fireproof door according to claim 1, characterized in that: The exhaust assembly (9) includes a sealing plate (901) and a plurality of exhaust fans (902). The sealing plate (901) is fixedly installed on the inner wall of the mounting groove (102), and the exhaust fans (902) are fixedly installed inside the sealing plate (901).

7. An emergency sealed-seale smoke-proof and flame-retardant fireproof door according to claim 6, characterized in that: The exhaust assembly (9) further includes a plurality of exhaust pipes (903), which are respectively fixedly connected to a plurality of exhaust fans (902).

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