Single-leaf stainless steel fireproof glass door

Abstract

A single opening stainless steel glass fireproof door relates to the field of fireproof doors. It comprises a door frame and a door body, the door body is hinged on the inner side of the door frame, the bottom of the door body is provided with a containing groove, the containing groove is provided with a movable baffle, a connecting column is arranged between the top of the movable baffle and the groove bottom of the containing groove, the melting point of the connecting column is 60-75 DEG C; the distance between the bottom of the door body and the ground is less than the height of the movable baffle, the sum of the height of the movable baffle and the height of the connecting column is equal to the depth of the containing groove, and the width of the containing groove is less than the width of the door body. The application can improve the sealing effect while not affecting the quick opening and closing of the door body.

Description

Technical Field

[0001] This application relates to the field of fire doors, specifically to a single-leaf stainless steel glass fire door. Background Technology

[0002] Stainless steel glass fire doors are doors that combine a stainless steel frame with fire-resistant glass. They are characterized by high strength, corrosion resistance, fire resistance, heat insulation, and sound insulation, and are widely used in commercial buildings, industrial plants, public facilities, and residential communities.

[0003] Chinese patent document CN220319415U discloses a single-leaf fireproof glass door, specifically disclosing a door frame and a door leaf movably installed inside the door frame. A heat-insulating fireproof glass is vertically installed in the middle of the door leaf, and the heat-insulating fireproof glass and the door leaf are on the same vertical plane. The heat-insulating fireproof glass moves within the door frame through the door leaf. Each side of the door frame has a mounting groove, and a first fire-resistant expansion seal is attached to the surface of the mounting groove. The first fire-resistant expansion seal is parallel to the door leaf. In the event of a fire, the door leaf closes, the outside temperature rises, and the fire-resistant expansion seal inside the door frame rapidly expands, filling the gap between the door frame and the door leaf and acting as a smoke barrier. The cooperation between the door leaf and the heat-insulating fireproof glass effectively blocks flames, isolates high temperatures and harmful gases, effectively prevents the spread of fire, and provides fire prevention, smoke isolation, and high-temperature protection.

[0004] Although the fire-resistant expansion seal can prevent smoke from entering after it expands due to heat, the door leaf and the door frame will be in a tightly locked state. When it is necessary to open the door to escape, the door leaf may be difficult to open, delaying the escape opportunity. Utility Model Content

[0005] In order to overcome the problem that fire doors in the prior art are difficult to open after thermal expansion, this application provides a single-opening stainless steel glass fire door.

[0006] This application adopts the following technical solution: a single-leaf stainless steel glass fire door, including a door frame and a door body, the door body is hinged to the inner side of the door frame, the bottom of the door body is provided with a receiving groove, the receiving groove is provided with a movable baffle, the top of the movable baffle and the bottom of the receiving groove are provided with a connecting column, the melting point of the connecting column is 60-75℃; The distance between the bottom of the door and the ground is less than the height of the movable baffle. The sum of the height of the movable baffle and the height of the connecting column is equal to the depth of the receiving groove. The width of the receiving groove is less than the width of the door.

[0007] Optionally, the number of connecting posts is not less than three, and a plurality of connecting posts are spaced apart along the length direction of the movable baffle. A spring is sleeved on the connecting post, one end of the spring is connected to the bottom of the receiving groove, and the other end of the spring is connected to the top of the movable baffle. When the bottom of the movable baffle is in contact with the ground, the spring is in a compressed state.

[0008] Optionally, the bottom of the movable baffle is provided with a filling space, and the outer wall of the movable baffle is provided with a plurality of filling ports, which are connected to the filling space; When the bottom of the movable baffle contacts the ground, the filling port is located outside the receiving groove, and flexible smoke-sealing material can be filled into the filling space through the filling port.

[0009] Optionally, the plurality of filling ports are evenly distributed on the two sidewalls along the length of the movable baffle.

[0010] Optionally, multiple cover plates are hinged to the inner wall of the filling space, and the multiple cover plates are used to seal the filling opening respectively and in a one-to-one correspondence.

[0011] Optionally, the cover plate can rotate about the hinge in a direction away from the corresponding filling port.

[0012] Compared to existing technologies, the connecting column in this application automatically melts upon heating, enabling the automatic release of the movable baffle. Furthermore, the movable baffle, under the pressure of a spring, ensures its bottom reliably adheres to the ground. Simultaneously, by selecting a spring with an appropriate stiffness coefficient, the pressure applied by the spring to the movable baffle can be controlled, ensuring that the baffle adheres to the ground without affecting the opening of the door. Moreover, a flexible smoke-proof material can be filled into the filling space through the filling port, thereby improving the smoke-proof effect. Attached Figure Description

[0013] Figure 1 This is a schematic perspective view of this application; Figure 2 yes Figure 1 Enlarged structural reference diagram at point A; Figure 3 yes Figure 3 Reference diagram of the action state; Figure 4 This is a cross-section of the internal structure of the door. Figure 1 ; Figure 5 This is a cross-section of the internal structure of the door. Figure 2 ; Figure 6 It is a schematic 3D diagram of the movable baffle; In the diagram: 1. Door frame; 2. Door body; 20. Receiving groove; 3. Movable baffle; 31. Filling space; 32. Filling opening; 33. Cover plate; 4. Connecting column; 40. Spring. Detailed Implementation

[0014] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0015] like Figure 1-6 As shown, a single-leaf stainless steel glass fire door includes a door frame 1 and a door body 2. The door body 2 is hinged to the inner side of the door frame 1. The door body 2 is characterized by having a receiving groove 20 at its bottom, a movable baffle 3 within the receiving groove 20, and a connecting post 4 between the top of the movable baffle 3 and the bottom of the receiving groove 20. The melting point of the connecting post 4 is 60-75℃. The distance between the bottom of the door body 2 and the ground is less than the height of the movable baffle 3. The sum of the height of the movable baffle 3 and the height of the connecting post 4 is equal to the depth of the receiving groove 20. The width of the receiving groove 20 is less than the width of the door body 2.

[0016] The door frame 1 has an inverted U-shaped design, consisting of two vertical bars and one horizontal bar, with the horizontal bar positioned at the top of the two vertical bars. The door 2 is positioned at a distance from the ground, allowing it to open and close freely without contact with the ground in the absence of a fire, thus improving the smoothness of opening and closing. In the event of a fire and an ambient temperature exceeding 75°C, the connecting column 4 automatically melts, causing it to contact the movable baffle 3. The movable baffle 3 then automatically descends, sealing the space between the door 2 and the ground, effectively blocking smoke. Furthermore, while ensuring the strength of the door 2, the receiving groove 20 can be made as close as possible to the width of the door 2, minimizing the distance between the movable baffle 3 and the door frame 1, thereby further enhancing the smoke-proof effect. Since the movable baffle 3 relies on its own gravity to fall and seal off the smoke, there will be no expansion or compression between the door body 2 and the door frame 1, thus ensuring that the door body 2 can be opened quickly when it is necessary to open the door to escape.

[0017] The number of connecting posts 4 is no less than three, and several connecting posts 4 are spaced apart along the length of the movable baffle 3. A spring 40 is fitted onto each connecting post 4. One end of the spring 40 is connected to the bottom of the receiving groove 20, and the other end is connected to the top of the movable baffle 3. When the bottom of the movable baffle 3 is in contact with the ground, the spring 40 is in a compressed state. The large number of connecting posts 4 ensures that the connecting posts 4 can reliably connect to the movable baffle 3 during daily use, thereby ensuring that the movable baffle 3 can be hidden inside the receiving groove 20 in the absence of a fire. When the connecting column 4 melts, the spring 40 releases its energy and rebounds, driving the movable baffle 3. When the movable baffle 3 is in position, the spring 40 remains compressed, providing sufficient downward pressure to the movable baffle 3. At the same time, by selecting a suitable spring 40, the downward pressure applied by the spring 40 to the movable baffle 3 can be adjusted, ensuring that the spring 40 can press the movable baffle 3 to reliably adhere to the ground while allowing the movable baffle 3 to be lifted manually, thus facilitating escape by opening the door.

[0018] The bottom of the movable baffle 3 is provided with a filling space 31, and the outer wall of the movable baffle 3 is provided with multiple filling ports 32, which are connected to the filling space 31. When the bottom of the movable baffle 3 is in contact with the ground, the filling ports 32 are located outside the receiving groove 20, and flexible smoke-sealing material can be filled into the filling space 31 through the filling ports 32. After the flexible smoke-sealing material is filled into the filling space 31, it can adaptively fill the gap between the movable baffle 3 and the ground based on its own characteristics, thereby improving the smoke-sealing effect. Furthermore, when the flexible smoke-sealing material is water-soaked cotton cloth, water can be brought into the filling space 31 during the process of stuffing the cotton cloth. In this way, the flow of water can maximize the smoke-sealing effect and play a certain cooling role.

[0019] Multiple filling ports 32 are evenly distributed on the two side walls along the length of the movable baffle 3. Multiple cover plates 33 are hinged to the inner wall of the filling space 31, each cover plate 33 corresponding to and sealing one of the filling ports 32. Each cover plate 33 can rotate around its hinge point in a direction away from the corresponding filling port 32. Flexible smoke-sealing material can be filled on both sides of the door 2. With the cover plates 33 covering the filling ports 32, they are normally closed. When the ground is sufficiently flat and the smoke-sealing effect can be achieved solely through the movable baffle 3, there is no need to fill the filling space 31 with flexible smoke-sealing material. When filling is required, the flexible smoke-sealing material can be directly inserted into the filling port 32, reducing operational difficulty and ensuring the reliability of the smoke-sealing effect.

[0020] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A single-leaf stainless steel glass fire door, comprising a door frame (1) and a door body (2), wherein the door body (2) is hinged to the inner side of the door frame (1), characterized in that, The bottom of the door body (2) is provided with a receiving groove (20), and a movable baffle (3) is provided in the receiving groove (20). A connecting column (4) is provided between the top of the movable baffle (3) and the bottom of the receiving groove (20). The melting point of the connecting column (4) is 60-75℃. The distance between the bottom of the door (2) and the ground is less than the height of the movable baffle (3). The sum of the height of the movable baffle (3) and the height of the connecting column (4) is equal to the depth of the receiving groove (20). The width of the receiving groove (20) is less than the width of the door (2).

2. A single-leaf stainless steel glass fire door according to claim 1, characterized in that, The number of connecting posts (4) is not less than three, and several connecting posts (4) are spaced apart along the length direction of the movable baffle (3). A spring (40) is sleeved on the connecting post (4), one end of the spring (40) is connected to the bottom of the receiving groove (20), and the other end of the spring (40) is connected to the top of the movable baffle (3). When the bottom of the movable baffle (3) is in contact with the ground, the spring (40) is in a compressed state.

3. A single-leaf stainless steel glass fire door according to claim 2, characterized in that, The bottom of the movable baffle (3) is provided with a filling space (31), and the outer wall of the movable baffle (3) is provided with a plurality of filling ports (32), which are connected to the filling space (31); When the bottom of the movable baffle (3) contacts the ground, the filling port (32) is located outside the receiving groove (20), and flexible smoke sealing material can be filled into the filling space (31) through the filling port (32).

4. A single-leaf stainless steel glass fire door according to claim 3, characterized in that, Multiple filling ports (32) are evenly distributed on the two side walls along the length of the movable baffle (3).

5. A single-leaf stainless steel glass fire door according to claim 3, characterized in that, Multiple cover plates (33) are hinged to the inner wall of the filling space (31), and the multiple cover plates (33) are used to seal the filling opening (32) respectively and in one-to-one correspondence.

6. A single-leaf stainless steel glass fire door according to claim 5, characterized in that, The cover plate (33) can rotate about the hinge in a direction away from the corresponding filling port (32).

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