Stainless steel fire door

Abstract

The application relates to the technical field of fireproof doors and discloses a stainless steel fireproof door which comprises a door frame, two stainless steel door bodies are arranged in the door frame, a sliding groove is arranged at the top and the bottom of each stainless steel door body, a reinforcing mechanism is arranged between the sliding groove and the door frame, a functional cavity is arranged in each stainless steel door body, a motor is fixedly installed on the inner wall of one side of the functional cavity, and a bidirectional mechanism is arranged in the functional cavity. The application has the following advantages and effects: the reinforcing mechanism and the sealing mechanism are arranged, the stability of the door body is enhanced, the door body is prevented from loosening due to high-temperature deformation or impact during a fire, the effectiveness of fireproof separation is ensured, the sealing air bag can be filled between the grooves on the adjacent sides of the two stainless steel door bodies, a tight sealing structure is formed, the smoke and hot air generated by the fire are prevented from spreading through the door gap, and the sealing performance and the fireproof effect of the fireproof door are effectively improved.

Description

Technical Field

[0001] This application relates to the field of fire door technology, and in particular to a stainless steel fire door. Background Technology

[0002] In modern building safety systems, stainless steel fire doors are widely used in various building scenarios, such as commercial complexes, high-rise residential buildings, and industrial plants, as key facilities for preventing the spread of fire and protecting the lives and property of people. However, with the increasing complexity of building fire risks and the increasingly stringent safety standards, traditional stainless steel fire doors have revealed many problems that urgently need to be solved in practical applications, especially in terms of structural reliability and fire response mechanisms.

[0003] In practical use, it has been found that the gaps between traditional fire doors are often sealed with ordinary rubber sealing strips, which are prone to softening and carbonization at high temperatures, losing their sealing effect and allowing a large amount of smoke and heat to penetrate. This not only endangers the lives of people but also accelerates the spread of fire. At the same time, the connection structure between the door and the door frame is not strong enough and lacks effective reinforcement measures. During a fire, the door is easily displaced and deformed due to high temperature deformation and the impact of hot airflow, which undermines the integrity of the fire compartment and makes it difficult for the fire door to perform its core protective function. Therefore, we have proposed a stainless steel fire door to solve the above problems. Utility Model Content

[0004] The purpose of this application is to address the shortcomings of existing technologies, such as the use of ordinary rubber sealing strips for sealing gaps between door panels, which are prone to softening and carbonization at high temperatures, resulting in loss of sealing effect; insufficient strength of the connection structure between the door panel and the door frame, lack of effective reinforcement measures; and the impact of high temperature deformation and hot airflow on the door panel during a fire. Therefore, a stainless steel fire door is proposed.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution: a stainless steel fire door, including a door frame, two stainless steel door bodies are arranged inside the door frame, the top and bottom of the stainless steel door bodies are provided with sliding grooves, a reinforcing mechanism is provided between the sliding grooves and the door frame, a functional cavity is provided inside the stainless steel door body, a motor is fixedly installed on the inner wall of one side of the functional cavity, a bidirectional mechanism is provided inside the functional cavity, and a smoke sensor is provided on the rear side of the stainless steel door body; two movable cavities are provided inside the stainless steel door body, the two movable cavities are located above and below the functional cavity respectively, a pushing mechanism and a jacking mechanism are provided inside the movable cavities, two piston cavities are provided inside the stainless steel door body, the piston cavities are located inside the movable cavities, a groove is provided on the adjacent side of the two stainless steel door bodies, and a sealing mechanism is provided between the groove and the piston cavity.

[0006] A further configuration of this application is as follows: the bidirectional mechanism includes a bidirectional screw and two screw seats. The same bidirectional screw is rotatably installed on the top inner wall and the bottom inner wall of the functional cavity. Two screw seats are threaded on the bidirectional screw. A connecting rod is fixedly installed on the side of the two screw seats that are far apart from each other. The other end of the connecting rod extends into the movable cavity. A gear mechanism is provided between the bidirectional screw and the motor.

[0007] By adopting the above technical solution and by setting up a bidirectional mechanism, the bidirectional screw can drive the two screw seats to move closer or further apart, thereby achieving the purpose of driving the two connecting rods to move closer or further apart.

[0008] A further feature of this application is that the jacking mechanism includes a trapezoidal seat and a jacking rod, the trapezoidal seat is slidably installed on the inner wall of the movable cavity, and the jacking rod is fixedly installed on the side of the trapezoidal seat away from the functional cavity.

[0009] By adopting the above technical solution and by setting up a jacking mechanism, the connecting rod can drive the jacking rod to move away from the functional cavity, thereby achieving the purpose of moving the reinforcing plate into the slot.

[0010] A further feature of this application is that the reinforcement mechanism includes a reinforcement plate and a slot, the same reinforcement plate is slidably installed on the inner walls of both sides of the groove, the slots are provided on the inner walls of the top and bottom of the door frame, one side of the reinforcement plate is fixedly connected to the other end of the corresponding top rod, and the reinforcement plate and the slot are adapted to each other.

[0011] By adopting the above technical solution and by setting up a reinforcement mechanism, the reinforcement plate can be inserted into the slots at the top and bottom of the door frame, thereby achieving a reinforced connection between the stainless steel door body and the door frame and enhancing the stability of the door body.

[0012] A further configuration of this application is as follows: the pushing mechanism includes a trapezoidal block and a push rod. The trapezoidal block is slidably installed on the inner wall of the movable cavity away from the functional cavity. The push rod is fixedly installed on the inner side of the trapezoidal block. The other end of the push rod extends into the piston cavity. The trapezoidal block is adapted to the trapezoidal seat. A spring is sleeved on the push rod. The two ends of the spring are fixedly connected to the inner wall of the movable cavity and the inner side of the trapezoidal block, respectively.

[0013] By adopting the above technical solution and by setting up a pushing mechanism, the trapezoidal seat can push the trapezoidal block to move towards the piston chamber, thereby achieving the purpose of moving the piston plate towards the groove side by pushing the push rod.

[0014] A further feature of this application is that a piston plate is slidably installed inside the piston chamber, and one side of the piston plate is fixedly connected to the other end of the push rod.

[0015] By adopting the above technical solution, and by setting a piston plate, the air in the piston chamber can be compressed through the piston plate, so as to realize the purpose of filling the air in the piston chamber into the sealed airbag through the vent pipe.

[0016] A further feature of this application is that the sealing mechanism includes a vent pipe and a sealing airbag, the sealing airbag is provided in the groove, and the same vent pipe is provided between the sealing airbag and the corresponding piston chamber. The sealing airbag is made of a high-temperature resistant material.

[0017] By adopting the above technical solution and setting a sealing mechanism, the expanded sealing airbag can fill the groove between the two adjacent sides of the stainless steel door body to form a tight sealing structure, which can prevent the spread of smoke and heat generated by fire through the door gap, effectively improving the sealing performance and fire protection effect of the fire door.

[0018] A further feature of this application is that the gear mechanism includes two conical wheels, and conical wheels are fixedly sleeved on both the bidirectional screw and the motor output shaft. The conical wheels are located between the two screw seats, and the two conical wheels mesh with each other.

[0019] By adopting the above technical solution and by setting up a gear mechanism, the motor can drive the bidirectional screw to rotate.

[0020] The beneficial effects of this application are:

[0021] (1) Through the cooperation of motor, conical wheel, double screw, screw seat, connecting rod, trapezoidal seat, top rod and reinforcing plate, when the smoke sensor detects smoke and fire, the motor can start, which can drive the two top rods to push the reinforcing plate to slide in the groove, and the reinforcing plate can be inserted into the slots at the top and bottom of the door frame, thereby realizing the reinforcing connection between the stainless steel door and the door frame, enhancing the stability of the door, preventing the door from loosening due to high temperature deformation or impact during fire, and ensuring the effectiveness of fire separation;

[0022] (2) Through the cooperation of trapezoidal seat, trapezoidal block, push rod, piston plate, vent pipe and sealing airbag, the trapezoidal seat can drive the piston plate to slide in the piston chamber. The air in the piston chamber is compressed and can enter the sealing airbag through the vent pipe, causing the sealing airbag to expand. The expanded sealing airbag can fill the groove between the two adjacent sides of the stainless steel door body to form a tight sealing structure, which can prevent the smoke and heat generated by the fire from spreading through the door gap, effectively improving the sealing performance and fireproof effect of the fire door. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of a stainless steel fire door according to this application;

[0025] Figure 2 This is a schematic diagram of the door frame structure of a stainless steel fire door according to this application;

[0026] Figure 3 This is a schematic diagram of the stainless steel door body structure of a stainless steel fire door according to this application;

[0027] Figure 4 This is a cross-sectional structural diagram of a stainless steel fire door according to this application.

[0028] In the diagram: 1. Door frame; 101. Slot; 2. Stainless steel door body; 201. Slide; 202. Reinforcing plate; 3. Functional cavity; 301. Motor; 302. Bidirectional screw; 303. Screw seat; 304. Conical wheel; 4. Movable cavity; 401. Trapezoidal seat; 402. Connecting rod; 403. Top rod; 5. Trapezoidal block; 501. Push rod; 6. Piston cavity; 601. Piston plate; 602. Vent pipe; 7. Groove; 701. Sealing airbag; 8. Spring. Detailed Implementation

[0029] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] See Figures 1-4This application provides a stainless steel fire door, including a door frame 1, two stainless steel door bodies 2 inside the door frame 1, a sliding groove 201 on the top and bottom of the stainless steel door body 2, a reinforcing mechanism between the sliding groove 201 and the door frame 1, a functional cavity 3 inside the stainless steel door body 2, a motor 301 fixedly installed on the inner wall of one side of the functional cavity 3, a bidirectional mechanism inside the functional cavity 3, a smoke sensor on the rear side of the stainless steel door body 2; two movable cavities 4 inside the stainless steel door body 2, the two movable cavities 4 being located above and below the functional cavity 3 respectively, a pushing mechanism and a jacking mechanism inside the movable cavities 4; two piston cavities 6 inside the stainless steel door body 2, the piston cavities 6 being located inside the movable cavities 4, a groove 7 on each adjacent side of the two stainless steel door bodies 2, a sealing mechanism between the groove 7 and the piston cavity 6.

[0031] Specifically, the bidirectional mechanism includes a bidirectional screw 302 and two screw seats 303. The same bidirectional screw 302 is rotatably installed on the top inner wall and bottom inner wall of the functional cavity 3. Two screw seats 303 are threaded on the bidirectional screw 302. A connecting rod 402 is fixedly installed on the side of the two screw seats 303 that are far apart from each other. The other end of the connecting rod 402 extends into the movable cavity 4. A gear mechanism is provided between the bidirectional screw 302 and the motor 301.

[0032] Specifically, the jacking mechanism includes a trapezoidal seat 401 and a jacking rod 403. The trapezoidal seat 401 is slidably installed on the inner wall of the movable cavity 4, and the jacking rod 403 is fixedly installed on the side of the trapezoidal seat 401 away from the functional cavity 3.

[0033] Specifically, the reinforcement mechanism includes a reinforcement plate 202 and a slot 101. The same reinforcement plate 202 is slidably installed on the inner walls of both sides of the slot 201. The top inner wall and bottom inner wall of the door frame 1 are provided with slots 101. One side of the reinforcement plate 202 is fixedly connected to the other end of the corresponding top rod 403. The reinforcement plate 202 and the slot 101 are compatible.

[0034] Specifically, the pushing mechanism includes a trapezoidal block 5 and a push rod 501. The trapezoidal block 5 is slidably installed on the inner wall of the movable cavity 4 away from the functional cavity 3. The push rod 501 is fixedly installed on the inner side of the trapezoidal block 5. The other end of the push rod 501 extends into the piston cavity 6. The trapezoidal block 5 is adapted to the trapezoidal seat 401. A spring 8 is sleeved on the push rod 501. The two ends of the spring 8 are fixedly connected to the inner wall of the movable cavity 4 and the inner side of the trapezoidal block 5, respectively.

[0035] Specifically, a piston plate 601 is slidably installed inside the piston chamber 6, and one side of the piston plate 601 is fixedly connected to the other end of the push rod 501.

[0036] Specifically, the sealing mechanism includes a vent pipe 602 and a sealing airbag 701. The sealing airbag 701 is provided in the groove 7, and the sealing airbag 701 and the corresponding piston chamber 6 are provided with the same vent pipe 602. The sealing airbag 701 is made of high temperature resistant material.

[0037] Specifically, the gear mechanism includes two conical wheels 304. Conical wheels 304 are fixedly sleeved on both the bidirectional screw 302 and the output shaft of the motor 301. The conical wheels 304 are located between the two screw seats 303, and the two conical wheels 304 mesh with each other.

[0038] In this application, firstly, when the smoke sensor detects smoke and fire, it transmits a signal to the controller inside the stainless steel door 2. The controller then starts the motor 301. The output shaft of the motor 301 rotates, causing the conical wheel 304 fixedly mounted on it to rotate. Through the two meshing conical wheels 304 in the gear mechanism, power is transmitted to the bidirectional screw 302, which rotates accordingly. Since the bidirectional screw 302 is threaded with two screw seats 303, as the bidirectional screw 302 rotates, the two screw seats 303 move away from each other along the bidirectional screw 302. When 303 moves, it can drive the connecting rod 402, which is fixedly connected to it, to move within the movable cavity 4. The connecting rod 402 pushes the trapezoidal seat 401 to slide within the inner wall of the movable cavity 4, thereby causing the trapezoidal seat 401 to drive the top rod 403 to move. The top rod 403 can push the reinforcing plate 202 to slide within the slide groove 201, enabling the reinforcing plate 202 to be inserted into the slots 101 at the top and bottom of the door frame 1. This achieves a reinforced connection between the stainless steel door body 2 and the door frame 1, enhancing the stability of the door body and preventing the door body from loosening due to high temperature deformation or impact during a fire, thus ensuring the effectiveness of fireproof partitioning.

[0039] Meanwhile, during the movement of the trapezoidal seat 401, it pushes the matching trapezoidal block 5 to slide within the movable cavity 4. When the trapezoidal block 5 slides, it can drive the push rod 501 to move into the piston cavity 6. The push rod 501 can push the piston plate 601 to slide within the piston cavity 6. The air in the piston cavity 6 is compressed and can enter the sealing airbag 701 through the vent pipe 602, causing the sealing airbag 701 to expand. The expanded sealing airbag 701 can fill the groove 7 on the adjacent side of the two stainless steel door bodies 2 to form a tight sealing structure, which can prevent the smoke and heat generated by the fire from spreading through the door gap, effectively improving the sealing performance and fireproof effect of the fire door.

Claims

1. A stainless steel fire door, characterized in that, Includes a door frame (1), inside which are two stainless steel door bodies (2), with sliding grooves (201) on the top and bottom of each stainless steel door body (2), and a reinforcing mechanism between the sliding grooves (201) and the door frame (1), and a functional cavity (3) inside the stainless steel door body (2), with a motor (301) fixedly installed on one inner wall of the functional cavity (3), and a bidirectional mechanism inside the functional cavity (3), and a smoke sensor on the rear side of the stainless steel door body (2); The stainless steel door body (2) has two movable cavities (4) located above and below the functional cavity (3), respectively. The movable cavities (4) are equipped with a jacking mechanism and a pushing mechanism. The stainless steel door body (2) has two piston cavities (6) located inside the movable cavities (4). The two stainless steel door bodies (2) have grooves (7) on adjacent sides, and a sealing mechanism is provided between the grooves (7) and the piston cavities (6).

2. A stainless steel fire door according to claim 1, characterized in that: The bidirectional mechanism includes a bidirectional screw (302) and two screw seats (303). The same bidirectional screw (302) is rotatably installed on the top inner wall and bottom inner wall of the functional cavity (3). Two screw seats (303) are threaded on the bidirectional screw (302). A connecting rod (402) is fixedly installed on the side of the two screw seats (303) that are far apart from each other. The other end of the connecting rod (402) extends into the movable cavity (4). A gear mechanism is provided between the bidirectional screw (302) and the motor (301).

3. A stainless steel fire door according to claim 1, characterized in that: The jacking mechanism includes a trapezoidal seat (401) and a jacking rod (403). The trapezoidal seat (401) is slidably installed on the inner wall of the movable cavity (4), and the jacking rod (403) is fixedly installed on the side of the trapezoidal seat (401) away from the functional cavity (3).

4. A stainless steel fire door according to claim 1, characterized in that: The reinforcement mechanism includes a reinforcement plate (202) and a slot (101). The same reinforcement plate (202) is slidably installed on the inner walls of both sides of the groove (201). The top inner wall and bottom inner wall of the door frame (1) are provided with slots (101). One side of the reinforcement plate (202) is fixedly connected to the other end of the corresponding top rod (403). The reinforcement plate (202) and the slot (101) are compatible.

5. A stainless steel fire door according to claim 1, characterized in that: The pushing mechanism includes a trapezoidal block (5) and a push rod (501). The trapezoidal block (5) is slidably installed on the inner wall of the movable cavity (4) away from the functional cavity (3). The push rod (501) is fixedly installed on the inner side of the trapezoidal block (5). The other end of the push rod (501) extends into the piston cavity (6). The trapezoidal block (5) is adapted to the trapezoidal seat (401). A spring (8) is sleeved on the push rod (501). The two ends of the spring (8) are fixedly connected to the inner wall of the movable cavity (4) and the inner side of the trapezoidal block (5), respectively.

6. A stainless steel fire door according to claim 1, characterized in that: A piston plate (601) is slidably installed in the piston chamber (6), and one side of the piston plate (601) is fixedly connected to the other end of the push rod (501).

7. A stainless steel fire door according to claim 1, characterized in that: The sealing mechanism includes a vent pipe (602) and a sealing airbag (701). The sealing airbag (701) is provided in the groove (7). The sealing airbag (701) and the corresponding piston chamber (6) are provided with the same vent pipe (602). The sealing airbag (701) is made of high temperature resistant material.

8. A stainless steel fire door according to claim 2, characterized in that: The gear mechanism includes two conical wheels (304). Conical wheels (304) are fixedly sleeved on both the bidirectional screw (302) and the output shaft of the motor (301). The conical wheels (304) are located between two screw seats (303) and the two conical wheels (304) mesh with each other.

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