Reinforced high-flame-retardant closed sound insulation steel fireproof door

Abstract

The utility model discloses a reinforced high-flame-retardant airtight sound-insulation steel fireproof door which comprises a steel fireproof door body, and a rod body is rotationally connected to the steel fireproof door body. During use, after the pawl is loosened, the hand wheel is rotated to enable the rod body to rotate and drive the first bevel gear to rotate, the first bevel gear is meshed with the second bevel gears on the two sides respectively, and then the second bevel gears on the two sides drive the first screw and the second screw corresponding to the first screw and the second screw to synchronously rotate together. The baffles are mounted at the upper end and the lower end of the steel fireproof door, and the rubber pads are also mounted on the baffles, so that the gaps between the steel fireproof door and the upper side and the lower side of the door frame can be blocked, and the steel fireproof door is prevented from being blocked; all the door crack parts are closed, noise or smoke is blocked outside the fireproof door to the maximum extent, and therefore sound insulation and smoke prevention are efficiently achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of reinforced high flame-retardant, airtight, and sound-insulating steel fire doors, and in particular to a reinforced high flame-retardant, airtight, and sound-insulating steel fire door. Background Technology

[0002] Industrial plants typically contain various production equipment and raw material storage, posing a high risk of fire. Some plants also have sound insulation requirements; for example, electronics manufacturing workshops need a relatively quiet environment, and textile factories need to control noise generated by equipment operation. Installing fire doors at factory entrances, warehouse doors, and fire exits not only meets fire safety requirements but also reduces noise transmission between the inside and outside of the workshop, improving the quality of the production environment. However, currently, the gaps in steel fire doors cannot be completely closed, meaning they cannot effectively block smoke or noise generated by external factors during a fire. Noise or smoke may still penetrate through the gaps in the fire doors, failing to provide efficient sound and smoke insulation. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a reinforced, highly flame-retardant, airtight, and sound-insulating steel fire door.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A reinforced, high-flame-retardant, airtight, and sound-insulating steel fire door includes a steel fire door, a rod rotatably connected to the steel fire door, a first bevel gear mounted on the rod, a cover mounted on the steel fire door, the cover penetrating the rod, a first screw and a second screw rotatably connected to the cover, both the first and second screws being mounted with second bevel gears, the two sets of second bevel gears meshing with the first bevel gears, a push plate threaded to one end of each of the first and second screws, rubber pads mounted on both push plates, two sets of baffles fixedly connected to the steel fire door, rubber pads mounted on both baffles, two hinges mounted on one end of each of the steel fire door, and two sets of grooves formed on the cover.

[0006] Preferably, the surfaces of all the rubber pads are coated with fire-retardant paint.

[0007] Preferably, one set of rubber pads has two sets of opening grooves.

[0008] Preferably, a ratchet is mounted on the rod, a pawl is rotatably connected to the cover, a spring is connected between the pawl and the cover, and the ratchet engages with the pawl.

[0009] Preferably, a handle is installed on the cover.

[0010] Preferably, the other end of the two sets of hinges is mounted on the door frame, and the door frame is equipped with other baffles.

[0011] Preferably, a handwheel is installed at one end of the rod.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The system consists of a steel fire door, a rod, a first bevel gear, a cover, a first screw, a second screw, a second bevel gear, a push plate, and rubber pads. In use, the pawl is first released, then the handwheel is turned. This causes the rod to rotate, simultaneously rotating the first bevel gear. The first bevel gear meshes with the second bevel gears on both sides. The second bevel gears then drive their corresponding first and second screws to rotate synchronously, causing the push plates on both sides to move laterally. This allows the rubber pads on the push plates to block the gaps between the steel fire door and the left and right sides of the door frame. Furthermore, because the steel fire door has baffles at both ends, and these baffles also have rubber pads, the gaps between the steel fire door and the top and bottom sides of the door frame are also blocked when the fire door is closed. This ensures that all gaps in the steel fire door are completely closed, effectively blocking smoke or noise generated by external factors during a fire. Noise and smoke are blocked to the maximum extent possible outside the fire door, thus achieving efficient sound insulation and smoke prevention.

[0014] 2. By installing rubber pads, the surface of the rubber pads is coated with fire-retardant paint or covered to improve their fire-resistant isolation capabilities. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a reinforced, high flame-retardant, airtight, sound-insulating steel fire door proposed in this utility model;

[0016] Figure 2 for Figure 1 Structural diagram of steel fire door, push plate and rubber pad;

[0017] Figure 3 for Figure 1 Structural diagram of the central door frame, baffle, and hinges;

[0018] Figure 4 for Figure 1 A schematic diagram of the ratchet, pawl, and spring.

[0019] Figure 5 for Figure 1 A schematic diagram of the structure of the rubber pad, baffle and opening groove.

[0020] In the diagram: 1. Steel fire door; 2. Rod; 3. First bevel gear; 4. Cover; 5. First screw; 6. Second screw; 7. Second bevel gear; 8. Push plate; 9. Rubber pad; 10. Baffle; 11. Opening slot; 12. Hinge; 13. Ratchet; 14. Pad; 15. Spring; 16. Groove; 17. Handle; 18. Door frame; 19. Handwheel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1, referring to Figures 1 to 5 A reinforced, high-flame-retardant, airtight, and sound-insulating steel fire door includes a steel fire door 1, a rod 2 rotatably connected to the steel fire door 1, a first bevel gear 3 mounted on the rod 2, a cover 4 mounted on the steel fire door 1, the cover 4 penetrating the rod 2, a first screw 5 and a second screw 6 rotatably connected to the cover 4, and a second bevel gear 7 mounted on both the first screw 5 and the second screw 6. The two sets of second bevel gears 7 mesh with the first bevel gear 3. One end of each of the first screw 5 and the second screw 6 is threaded with a pusher. The push plate 8, when the handwheel 19 is turned, rotates the rod 2, which in turn drives the first bevel gear 3 to rotate. The first bevel gear 3 meshes with the second bevel gears 7 on both sides. Then, the second bevel gears 7 on both sides drive their corresponding first screws 5 and second screws 6 to rotate synchronously, causing the push plates 8 on both sides to move synchronously relative to each other. Rubber pads 9 are installed on both sets of push plates 8. Two sets of baffles 10 are fixed to the steel fire door 1, and rubber pads 9 are installed on both sets of baffles 10. Two sets of hinges 12 are installed on the steel fire door 1. At one end, the cover 4 has two sets of grooves 16. The purpose of having two sets of grooves 16 is to avoid blocking the push plate 8. The general process is to first release the pawl 14 from the ratchet 13, then turn the handwheel 19 to rotate the rod 2, which in turn drives the first bevel gear 3 and the second bevel gear 7 to mesh. Then, the second bevel gears 7 on both sides drive their corresponding first screw 5 and second screw 6 to rotate synchronously, so that the push plates 8 on both sides move synchronously relative to each other, so that the rubber pads 9 on the push plates 8 on both sides can block the steel shield. The gap between the fire door 1 and the left and right sides of the door frame 18 is sealed, and a ratchet 13 is installed on the rod 2. The ratchet 13, pawl 14 and spring 15 can prevent the handwheel 19 from being accidentally activated. Furthermore, since baffles 10 are installed at the top and bottom of the steel fire door 1, and rubber pads 9 are also installed on the baffles 10, the gap between the steel fire door 1 and the top and bottom sides of the door frame 18 can also be blocked, so that the gap of the steel fire door 1 is completely sealed, effectively blocking the smoke or noise generated by external factors during a fire.

[0023] In this embodiment, the surfaces of multiple sets of rubber pads 9 are coated with fire-retardant paint, such as flame retardant. Two sets of opening slots 11 are provided on each set of rubber pads 9. The purpose of opening slots 11 on the rubber pads 9 is to avoid blocking the rotation of the hinges 12. A ratchet 13 is installed on the rod body 2. A pawl 14 is rotatably connected to the cover body 4. A spring 15 is connected between the pawl 14 and the cover body 4. The ratchet 13 and the pawl 14 mesh with each other. The cooperation between the ratchet 13 and the pawl 14 can prevent the handwheel 19 from being accidentally touched. A handle 17 is installed on the cover body 4. The other ends of the two sets of hinges 12 are installed on the door frame 18. Other baffles 10 are installed on the door frame 18. Rubber pads 9 are also installed on the other baffles 10, which can further enhance the sealing of the steel fire door 1, thereby improving the smoke and sound insulation effect. A handwheel 19 is installed on one end of the rod body 2.

[0024] The working principle of this embodiment is as follows: In use, first release the pawl 14 from the ratchet 13. Then, rotate the handwheel 19, causing the rod 2 to rotate while simultaneously rotating the first bevel gear 3. The first bevel gear 3 meshes with the second bevel gears 7 on both sides. The second bevel gears 7 on both sides then drive their corresponding first screw 5 and second screw 6 to rotate synchronously, causing the push plates 8 on both sides to move synchronously relative to each other. This allows the rubber pads 9 on the push plates 8 to block the gap between the steel fire door 1 and the left and right sides of the door frame 18. The rod 2 is equipped with a ratchet 13, which... The ratchet 13, pawl 14, and spring 15 work together to prevent accidental activation of the handwheel 19. Furthermore, since baffles 10 are installed at both the top and bottom of the steel fire door 1, and rubber pads 9 are also installed on the baffles 10, the gaps between the steel fire door 1 and the top and bottom sides of the door frame 18 are blocked when the steel fire door 1 is closed, thus achieving a complete seal at the door gaps of the steel fire door 1. This effectively blocks smoke or noise generated by external factors during a fire. In addition, the surface of the rubber pads 9 is coated with fire-retardant paint or covered with flame retardant to improve its fireproof isolation capability.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A reinforced, high flame-retardant, airtight, and sound-insulating steel fire door, comprising a steel fire door (1), characterized in that, A rod (2) is rotatably connected to the steel fire door (1). A first bevel gear (3) is installed on the rod (2). A cover (4) is installed on the steel fire door (1). The cover (4) penetrates the rod (2). A first screw (5) and a second screw (6) are rotatably connected to the cover (4). A second bevel gear (7) is installed on both the first screw (5) and the second screw (6). The two sets of second bevel gears (7) are connected to... The first bevel gear (3) meshes with each other. The first screw (5) and the second screw (6) are threadedly connected to push plates (8) at one end. Rubber pads (9) are installed on both sets of push plates (8). Two sets of baffles (10) are fixedly connected to the steel fire door (1). Rubber pads (9) are installed on both sets of baffles (10). One end of two sets of hinges (12) is installed on the steel fire door (1). Two sets of grooves (16) are opened on the cover (4).

2. The reinforced, high flame-retardant, airtight, sound-insulating steel fire door according to claim 1, characterized in that, The surfaces of all the rubber pads (9) are coated with fire-retardant paint.

3. The reinforced, high flame-retardant, airtight, sound-insulating steel fire door according to claim 1, characterized in that, Two sets of opening grooves (11) are provided on one set of rubber pads (9).

4. A reinforced, high flame-retardant, airtight, sound-insulating steel fire door according to claim 1, characterized in that, A ratchet (13) is mounted on the rod (2), and a pawl (14) is rotatably connected to the cover (4). A spring (15) is connected between the pawl (14) and the cover (4), and the ratchet (13) and the pawl (14) mesh.

5. A reinforced, high flame-retardant, airtight, sound-insulating steel fire door according to claim 1, characterized in that, A handle (17) is installed on the cover (4).

6. A reinforced, high flame-retardant, airtight, sound-insulating steel fire door according to claim 1, characterized in that, The other end of the two sets of hinges (12) is mounted on the door frame (18), on which the remaining baffles (10) are mounted.

7. A reinforced, high flame-retardant, airtight, sound-insulating steel fire door according to claim 1, characterized in that, A handwheel (19) is installed at one end of the rod (2).

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