A fire door that allows for ventilation

Abstract

This utility model discloses a fire door with convenient ventilation, including an external drive assembly and an internal moving assembly installed inside the external drive assembly. The external drive assembly includes an outer door body with several first ventilation openings for ventilation. The internal moving assembly includes an inner door body with a second ventilation opening on the outer door body. The outer door body has a top groove at the top and a bottom groove at the bottom. A platform is installed on one side of the top groove on the outer door body, and a drive assembly is placed on the platform. The drive assembly is used to drive the inner door body to move within the top and bottom grooves. This utility model uses a motor to drive a lead screw to rotate, which in turn moves a top block threaded onto the lead screw. Since the inner door body is fixedly connected below the top block, the movement of the top block directly moves the inner door body within the external drive assembly, thus allowing the user to more conveniently move the internal moving assembly within the external drive assembly. When the first and second ventilation openings coincide, the door is in a ventilated state; otherwise, it is in a closed state.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, specifically a fire door that facilitates ventilation. 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. In addition to the functions of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke. They can stop the spread of fire for a certain period of time and ensure the evacuation of personnel. Therefore, they also need to have a certain degree of rapid ventilation function.

[0003] Existing technology, disclosed in CN222025687U, provides a fire door for rapid ventilation, relating to the field of fire door technology. It includes a door body and a movable plate. The door body has a cavity in the middle, and the movable plate is slidably disposed inside the cavity. Multiple first ventilation holes are provided on both sides of the door body. Second ventilation holes are provided on the surface of the movable plate at positions corresponding to the multiple first ventilation holes. Ventilation openings are provided on both sides of the door body, on the side furthest from the first ventilation holes. A first electromagnet is fixedly installed on one side of the inside of the door body, and a second electromagnet is fixedly installed on the side of the movable plate near the first electromagnet. The first and second electromagnets are magnetically connected. Sliding grooves are provided on both sides of the cavity, on the side near the ventilation openings. This invention enables rapid ventilation under normal conditions and rapid closure in case of fire, providing excellent fire protection.

[0004] The aforementioned patent primarily utilizes the attraction of two electromagnets and the extension and retraction of a spring to move the movable plate to the other side of the cavity, thus misaligning the second vent hole with the first vent hole. However, this method of moving the movable plate requires manual operation by the user to pull it and engage the two electromagnets. Furthermore, the spring force significantly increases the difficulty of manually pulling the movable plate, making it inconvenient to move and greatly reducing the practicality of this fire door designed for rapid ventilation. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a fire door that facilitates ventilation, thus solving the aforementioned technical problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fire door with easy ventilation, comprising an external drive assembly, within which an internal moving assembly is movably installed. The external drive assembly includes an outer door body with several first ventilation openings penetrating through it. The internal moving assembly includes an inner door body movable within the outer door body, with several second ventilation openings penetrating through it. The outer door body has a top groove at its top and a bottom groove at its bottom. A platform is mounted on one side of the top groove, and a drive assembly is placed on the platform. The drive assembly drives the inner door body to move within the top and bottom grooves. This allows users to more conveniently adjust the internal structure of the fire door with easy ventilation, greatly improving its ease of use.

[0007] Furthermore, a top block for moving the inner door is fixedly connected to the top of the inner door body. A threaded groove is formed at the center of the top block. The drive assembly includes a motor fixed to the outer door body, and a lead screw is fixedly connected to the output end of the motor. The lead screw engages with the threaded groove to limit the movement of the top block. When the lead screw rotates, it directly moves the top block, improving the integrated operation of the fire door's internal structure for better ventilation.

[0008] Furthermore, a control power supply is fixedly installed on the side of the outer door away from the motor. Connectors are electrically connected to both sides of the motor's control box. A forward / reverse switch for controlling the motor is fixedly connected to the side of the connector away from the motor. The control power supply is electrically connected to the motor's control box. This electrical connection provides the necessary energy for the motor's operation, enhancing the practicality of the fire door with its improved ventilation.

[0009] Furthermore, the outer door body has a first slide rail installed on both sides of the inner wall of the bottom groove, the outer door body has a first slide groove opened on both sides of the inner groove, the inner door body has a second slide groove opened on both sides of the top, and the movable top block has a second slide rail installed on both sides. The first slide rail is located in the second slide groove, and the second slide rail is located in the first slide groove.

[0010] Furthermore, multiple inner grooves are fixedly formed on both sides of the inner door body, and telescopic components are movably installed in the inner grooves. These telescopic components are used to enter or exit the first ventilation opening. The telescopic components' use to enter or exit the first ventilation opening significantly reduces the air leakage rate of the fire door, which is designed for ventilation when closed.

[0011] Furthermore, the telescopic component includes multiple spring columns fixed in the inner groove. A movable plate is fixedly connected to the end of each spring column away from the inner door body. The movable plate moves within the inner groove via the spring columns. Inclined surfaces for bearing force are formed on both sides of the movable plate away from the spring columns. These inclined surfaces allow the external drive assembly to move more smoothly within the internal moving assembly, improving the practicality of the fire door for easy ventilation.

[0012] Furthermore, the movable plate is U-shaped. This U-shape makes the internal structure of the fire door more compact, improving its practicality. Beneficial effects

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model uses a motor to drive a lead screw to rotate, which in turn moves a top block threaded onto the lead screw. Since the inner door body is fixedly connected to the bottom of the top block, the movement of the top block directly moves the inner door body within the outer drive assembly, thus allowing the user to more conveniently move the inner moving assembly within the outer drive assembly. When the first vent and the second vent overlap, it is in the ventilation state; otherwise, it is in the closed state. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a fire door that facilitates ventilation according to the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the external drive assembly of this utility model;

[0017] Figure 3 This is a partially enlarged three-dimensional structural diagram of A of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the drive component of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the internal displacement component of this utility model;

[0020] Figure 6 This is a three-dimensional structural diagram of the telescopic component of this utility model.

[0021] In the diagram: 1. External drive assembly; 2. Inward movement assembly; 11. Outer door body; 12. First ventilation opening; 13. First slide rail; 14. Top groove; 15. First slide rail; 16. Bottom groove; 17. Drive assembly; 171. Motor; 172. Control power supply; 173. Lead screw; 174. Connector; 175. Forward / reverse switch; 21. Inner door body; 22. Telescopic component; 23. Second ventilation opening; 24. Inner groove; 25. Second slide rail; 26. Top block; 27. Threaded groove; 28. Second slide rail; 221. Movable plate; 222. Spring column; 223. Inclined surface. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0023] Example

[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6This application will be further described in detail below. A fire door with good ventilation includes an external drive assembly 1, within which an internal moving assembly 2 is movably installed. The external drive assembly 1 includes an outer door body 11, with a plurality of first ventilation openings 12 extending through it. The internal moving assembly 2 includes an inner door body 21 movable within the outer door body 11, with a plurality of second ventilation openings 23 extending through it. A top groove 14 is formed at the top of the outer door body 11, and a bottom groove 16 is formed at the bottom of the outer door body 11. A platform is mounted on one side of the top groove 14 on the outer door body 11, and a drive assembly is placed on the platform. Component 17, drive assembly 17 is used to drive the inner door body 21 to move within the top groove 14 and bottom groove 16. A top block 26 for moving the inner door body 21 is fixedly connected to the top of the inner door body 21. A threaded groove 27 is opened at the center of the top block 26. The drive assembly 17 includes a motor 171 fixedly mounted on the outer door body 11. A lead screw 173 is fixedly connected to the output end of the motor 171. The lead screw 173 is used to cooperate with the threaded groove 27 to limit the movement of the top block 26. A control power supply 172 is fixedly mounted on the side of the outer door body 11 away from the motor 171. The control box of the motor 171 is also fixedly mounted. Connectors 174 are electrically connected to both sides. A forward / reverse switch 175 for controlling the motor 171 is fixedly connected to the side of the connector 174 away from the motor 171. The control power supply 172 is electrically connected to the control box of the motor 171. The outer door body 11 has first slide rails 15 installed on both sides of the inner wall of the bottom groove 16. The outer door body 11 has first slide grooves 13 opened on both sides inside the top groove 14. The inner door body 21 has second slide grooves 25 opened on both sides of the top. The movable top block 26 has second slide rails 28 installed on both sides. The first slide rails 15 are located in the second slide grooves 25, and the second slide rails 28 are located in the second slide grooves 25. Inside the first slide groove 13, multiple inner grooves 24 are fixedly opened on both sides of the inner door body 21. Telescopic components 22 are movably installed in the inner grooves 24. The telescopic components 22 are used to enter or leave the first ventilation opening 12. The telescopic components 22 include multiple spring columns 222 fixed in the inner grooves 24. A movable plate 221 is fixedly connected to the end of the spring column 222 away from the inner door body 21. The movable plate 221 moves in the inner groove 24 through the spring column 222. Inclined surfaces 223 for bearing force are opened on both sides of the movable plate 221 away from the spring column 222. The movable plate 221 is U-shaped.

[0025] Since the first slide rail 15 is located in the second slide groove 25 and the second slide rail 28 is located in the first slide groove 13, the external drive assembly 1 can make precise limited movements within the internal moving assembly 2, and there is enough space on one side of the external drive assembly 1 for the internal moving assembly 2 to move.

[0026] Since the size of the first ventilation opening 12 and the second ventilation opening 23 are the same, when the inner moving component 2 moves within the outer driving component 1 to overlap with the first ventilation opening 12 and the second ventilation opening 23, the ventilation rate of the fire door that facilitates ventilation is maximized.

[0027] Since the motor 171 is electrically connected to the forward and reverse switches 175 on both sides through the connector 174, the user can directly control the motor 171 to perform forward and reverse operations from both sides of the fire door that is easy to ventilate by operating the forward and reverse switches 175, which greatly improves the convenience of operating the fire door that is easy to ventilate.

[0028] The telescopic component 22 protrudes only slightly from the inner groove 24. Therefore, when the inner moving component 2 moves inside the outer driving component 1, the telescopic component 22 will be inserted into the first ventilation opening 12, which greatly reduces the risk of air leakage from the fire door that facilitates ventilation. Also, since the movable plate 221 has inclined surfaces 223 on both sides, the movable plate 221 will not be completely locked in the first ventilation opening 12. This allows the spring column 222 to contract due to compression when the movable plate 221 leaves the first ventilation opening 12.

[0029] The working principle of this utility model is explained below: Unless otherwise specified, all internal mechanical structures of the fire door with easy ventilation are fixed by threads. To allow for a more intuitive observation of the technical features, bolt connections are appropriately concealed in the figure. When the fire door with easy ventilation is in a closed state, the first ventilation opening 12 and the second ventilation opening 23 are staggered, and the movable plate 221 of each telescopic component 22 is located within the first ventilation opening 12. This greatly reduces the probability of air leakage in the fire door with easy ventilation and enhances its safety. When the user needs to ventilate the fire door, the user can press the forward / reverse switch 175 from either side of the outer door body 11. The pressed forward / reverse switch 175 will directly start the motor 17 through the connecting piece 174. 1. When the motor 171 is started, it will drive the lead screw 173 to rotate. At this time, the top block 26 will move horizontally on the lead screw 173 through the threaded groove 27, and the inner door 21 will move directly inside the outer door 11. During this process, the movable plate 221 will compress the spring column 222 through the inclined surface 223 until the first ventilation opening 12 and the second ventilation opening 23 are completely overlapped. At this time, the fire door with easy ventilation is in the maximum ventilation state. The user can also adjust the ventilation rate of the fire door with easy ventilation by adjusting the degree of overlap of the first ventilation opening 12 and the second ventilation opening 23. This allows the fire door with easy ventilation to adjust its ventilation rate from both sides when in use, and the adjustment process is also very convenient, greatly improving the practicality of the fire door with easy ventilation.

[0030] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A fire door that facilitates ventilation, characterized in that, The device includes an external drive assembly (1), an internal moving assembly (2) which is movably installed within the external drive assembly (1), an external drive assembly (1) including an outer door body (11), a plurality of first ventilation openings (12) for ventilation passing through the outer door body (11), an internal moving assembly (2) including an inner door body (21) that moves within the outer door body (11), a plurality of second ventilation openings (23) for ventilation passing through the outer door body (11), a top groove (14) at the top of the outer door body (11), a bottom groove (16) at the bottom of the outer door body (11), a platform installed on one side of the top groove (14) of the outer door body (11), a drive assembly (17) placed on the platform, and the drive assembly (17) for driving the inner door body (21) to move within the top groove (14) and the bottom groove (16).

2. The fire door with easy ventilation according to claim 1, characterized in that: The top of the inner door (21) is fixedly connected to a top block (26) for moving the inner door (21). A threaded groove (27) is provided at the center of the top block (26). The drive assembly (17) includes a motor (171) fixed on the outer door (11). A lead screw (173) is fixedly connected to the output end of the motor (171). The lead screw (173) is used to cooperate with the threaded groove (27) to limit the movement of the top block (26).

3. A fire door with easy ventilation according to claim 2, characterized in that: A control power supply (172) is fixedly installed on the side of the outer door (11) away from the motor (171). Connectors (174) are electrically connected to both sides of the control box of the motor (171). A forward and reverse switch (175) for controlling the motor (171) is fixedly connected to the side of the connector (174) away from the motor (171). The control power supply (172) is electrically connected to the control box of the motor (171).

4. A fire door with easy ventilation according to claim 2, characterized in that: The outer door body (11) has a first slide rail (15) installed on both sides of the inner wall of the bottom groove (16). The outer door body (11) has a first slide groove (13) opened on both sides inside the top groove (14). The inner door body (21) has a second slide groove (25) opened on both sides of the top. The movable top block (26) has a second slide rail (28) installed on both sides. The first slide rail (15) is located in the second slide groove (25), and the second slide rail (28) is located in the first slide groove (13).

5. A fire door with easy ventilation according to claim 1, characterized in that: The inner door body (21) has multiple inner grooves (24) fixedly opened on both sides. Telescopic components (22) are movably installed in the inner grooves (24). The telescopic components (22) are used to enter or leave the first ventilation opening (12).

6. A fire door with easy ventilation according to claim 5, characterized in that: The telescopic component (22) includes a plurality of spring columns (222) fixed in the inner groove (24). A movable plate (221) is fixedly connected to one end of the spring column (222) away from the inner door body (21). The movable plate (221) moves in the inner groove (24) through the spring column (222). Inclined surfaces (223) for bearing force are provided on both sides of the movable plate (221) away from the spring column (222).

7. A fire door with easy ventilation according to claim 6, characterized in that: The movable plate (221) is U-shaped.

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