Door plate sealing magnetic attraction device, pressure-bearing door and pressurized building
By designing a door panel sealing magnetic suction device that includes a base, a connecting structure, and a magnet, the problems of complex structure, poor durability, and high cost of existing door panel sealing devices in pressurized buildings are solved, achieving a stable and economical door panel sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIBET RAILWAY CONSTR HEAVY IND TECH CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-21
Smart Images

Figure CN224532449U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressurized building technology, specifically to a door panel sealing magnetic suction device, a pressure-bearing door, and a pressurized building. Background Technology
[0002] Pressurized buildings solve the problem of continuous damage to the human body caused by high-altitude hypoxia and low pressure. However, because pressurized buildings require a certain continuous pressure difference, sealing becomes a core issue. The sealing and opening / closing methods of devices such as doors and windows, which need to be opened frequently, are particularly important.
[0003] Currently, there are various types of locking devices for pressure-bearing doors in buildings, the most common being mechanical clamping, electromagnet magnetic attraction, and electric door closers. Among them, mechanical clamping is relatively mature and has high market acceptance, but its structure is relatively complex; electromagnet magnetic attraction is more convenient to use, but its durability is poor and its operation is not stable enough; electric door closers can open and close doors more intelligently, but they are prone to programming errors, leading to failure to open and close doors properly, and their cost is relatively high.
[0004] In summary, there is an urgent need to provide a door panel sealing magnetic suction device, a pressure-bearing door, and a pressurized building to solve the problems existing in the prior art. Utility Model Content
[0005] The purpose of this utility model is to provide a door panel sealing magnetic suction device, a pressure-bearing door, and a pressurized building. The specific technical solution is as follows: A door panel sealing magnetic suction device includes a base, a connecting structure, a first magnet and a second magnet; the first magnet is movably connected to the base through the connecting structure; the second magnet is disposed on the base and is arranged opposite to the first magnet with the same pole, and the second magnet is used to drive the first magnet to rotate relative to the base.
[0006] Furthermore, the base is a U-shaped base, and the magnet is disposed inside the U-shaped base; two through holes are provided on opposite sides of the end of the U-shaped base, and the connecting structure is movably connected to the through holes.
[0007] Furthermore, the through hole is an oblong hole, and the length direction of the oblong hole is perpendicular to the bottom surface of the U-shaped base.
[0008] Furthermore, the length of the oblong hole is greater than the compression amount of the sealing strip used for sealing between the door frame and the door panel.
[0009] Furthermore, the connection structure includes a connecting seat and a connecting shaft, the connecting seat being rotatably connected to the base via the connecting shaft; the magnet is connected to the connecting seat.
[0010] Furthermore, the fixed end of the connecting shaft is connected to the connecting seat, and the free end of the connecting shaft is disposed through the through hole.
[0011] Furthermore, a second through hole is provided on the bottom surface of the U-shaped base, and the second magnet is disposed in the second through hole.
[0012] A pressure-bearing door includes a door frame, a door panel, a sealing strip, an iron block, and a magnetic suction device as described above. The door panel is hinged to the door frame. The sealing strip is disposed on the door frame to achieve a seal between the door frame and the door panel after the door is closed. The magnetic suction device is disposed on the door frame, and the iron block is disposed on the door panel, with the magnetic suction device and the iron block being disposed correspondingly.
[0013] Furthermore, the rotation direction of magnet one in the magnetic attraction device is towards the door panel.
[0014] A pressurized building includes a main structure of the pressurized building and a pressure-bearing door as described above, wherein the pressure-bearing door is disposed on the main structure of the pressurized building.
[0015] The application of the technical solution of this utility model has the following beneficial effects: (1) This utility model provides a door panel sealing magnetic suction device, including a base, a connecting structure, a magnet one, and a magnet two; the magnet one is movably connected to the base through the connecting structure; the magnet two is disposed on the base and is disposed opposite to the magnet one with the same pole, and the magnet two is used to drive the magnet one to rotate relative to the base. The door panel sealing magnetic suction device provided by this utility model has a simple structure, relatively low cost, and is economical and durable; by setting the magnet one and magnet two that repel each other, the magnet one can rotate relative to the base. Under the action of the repulsive force, the magnet one is pushed out, so that it is attached to the iron block installed on the door panel in advance. The door panel can be closed with a small magnetic force, avoiding the phenomenon that the magnet and the iron block are difficult to attract and thus the door cannot be closed.
[0016] (2) In this utility model, the through hole is a waist-shaped hole. The length direction of the waist-shaped hole is perpendicular to the bottom surface of the U-shaped base, and the length of the waist-shaped hole is greater than the compression amount of the sealing strip used for sealing between the door frame and the door panel, so as to ensure that there is enough space for movement when the door panel compresses the sealing strip and avoid the magnetic suction device being crushed.
[0017] (3) This utility model provides a pressure-bearing door, including a door frame, a door panel, a sealing strip, an iron block, and a magnetic suction device as described above. The door panel is hinged to the door frame; the sealing strip is disposed on the door frame to achieve a seal between the door frame and the door panel after the door is closed; the magnetic suction device is disposed on the door frame, and the iron block is disposed on the door panel, with the magnetic suction device and the iron block being disposed correspondingly. By setting the magnetic suction device, in conjunction with the sealing strip and the iron block, the closing and sealing of the door panel can be better achieved.
[0018] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description
[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of the door panel sealing magnetic suction device of this utility model; Figure 2 yes Figure 1 A bottom view; Figure 3 This is a partial structural diagram of the pressure-bearing door in this utility model; Among them, 1. base, 1.1 through hole one, 2. connecting structure, 2.1 connecting seat, 2.2 connecting shaft, 3. magnet one, 4. magnet two, 5. door frame, 6. door panel, 7. sealing strip, 8. iron block. Detailed Implementation
[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered.
[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0023] Example See Figure 1 and Figure 2This embodiment provides a door panel sealing magnetic suction device, including a base 1, a connecting structure 2, a magnet 3 and a magnet 4; the magnet 3 is movably connected to the base 1 through the connecting structure 2; the magnet 4 is disposed on the base 1 and is disposed opposite to the magnet 3 with the same pole, and the magnet 4 is used to drive the magnet 3 to rotate relative to the base 1.
[0024] See Figure 1 In this embodiment, the base 1 is a U-shaped base, and the magnet 3 is disposed inside the U-shaped base; two through holes 1.1 are provided on opposite sides of the end of the U-shaped base, and the connecting structure 2 is movably connected to the through holes 1.1.
[0025] Preferably, the through hole 1.1 is an oblong hole, and the length direction of the oblong hole is perpendicular to the bottom surface of the U-shaped base; the connecting structure 2 is rotatably connected to the oblong hole, and the connecting structure 2 can move back and forth along the length direction of the oblong hole. In this embodiment, the length of the oblong hole is greater than the compression amount of the sealing strip used for sealing between the door frame and the door panel. In actual use, the connecting structure 2, together with the magnet 3, moves along the length direction of the oblong hole to ensure that there is enough room for movement when the door panel compresses the sealing strip, and to avoid damage to the magnetic attraction device.
[0026] See Figure 1 The connecting structure 2 includes a connecting seat 2.1 and a connecting shaft 2.2. The connecting seat 2.1 is rotatably connected to the base 1 via the connecting shaft 2.2. The magnet 3 is fixedly connected to the connecting seat 2.1. Preferably, the connecting shaft 2.2 is disposed on opposite sides of the connecting seat 2.1, the fixed end of the connecting shaft 2.2 is connected to the connecting seat 2.1, and the free end of the connecting shaft 2.2 is disposed through the through hole 1.1.
[0027] See Figure 2 The bottom surface of the U-shaped base is provided with a through hole 2, and the magnet 2 4 is fixedly installed in the through hole 2; preferably, the magnet 2 4 is installed closer to the end of the magnet 1 3 away from the connecting seat 2.1, and the magnet 2 4 and the magnet 1 3 are arranged with the same pole facing each other. Under the action of mutual magnetic repulsion, the magnet 1 3 can rotate around the axis of the connecting shaft 2.2.
[0028] The door panel sealing magnetic suction device provided in this embodiment has a simple structure, relatively low cost, and is economical and durable. By setting up mutually repulsive magnets 3 and 4, magnet 3 can rotate around the axis of the connecting shaft 2.2. Under the action of repulsive force, magnet 3 is pushed out, so that it is attached to the iron block 8 installed on the door panel 6 in advance. The door panel 6 can be closed with a small magnetic force, avoiding the phenomenon that the door cannot be closed due to the difficulty of magnet 3 and iron block 8 adsorbing.
[0029] See Figure 3This embodiment also provides a pressure-bearing door, including a door frame 5, a door panel 6, a sealing strip 7, an iron block 8, and a magnetic suction device A as described above. The door panel 6 is hinged to the door frame 5; the sealing strip 7 is disposed on the door frame 5 to achieve a seal between the door frame 5 and the door panel 6 after the door is closed; the magnetic suction device A is disposed on the door frame 5, and the iron block 8 is disposed on the door panel 6, with the magnetic suction device A and the iron block 8 correspondingly disposed; in this embodiment, the bottom surface of the base 1 of the magnetic suction device A is fixed to the door frame 5, and the rotation direction of the magnet 3 of the magnetic suction device A is towards the door panel 6, with mutual magnetic force between the magnet 3 and the magnet 4. Under the action of repulsive force, magnet 3 can rotate around the axis of connecting shaft 2.2 and is pushed out. When the door is closed, the door panel 6 moves closer to the door frame 5. When the distance between the door panel 6 and the door frame 5 reaches a certain range (such as 30-40mm), the iron block 8 and magnet 3 are attached by magnetic attraction, pulling the door panel 6 towards the door frame 5. At this time, the sealing strip on the door panel 6 and the door frame 5 are attached. Subsequently, during the process of gradually increasing the pressure in the pressurized building, the sealing strip 7 is gradually pressed by the door panel 6 to achieve a seal. At this time, magnet 3 and iron block 8 will also move along the length of the waist-shaped hole towards the closing direction to prevent the magnetic attraction device A from being crushed.
[0030] This embodiment also provides a pressurized building, including a main structure of the pressurized building and a pressure-bearing door as described above, wherein the pressure-bearing door is disposed on the main structure of the pressurized building.
[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A door panel sealing magnetic suction device, characterized in that, It includes a base (1), a connecting structure (2), a magnet one (3) and a magnet two (4); the magnet one (3) is movably connected to the base (1) through the connecting structure (2); the magnet two (4) is disposed on the base (1) and is disposed opposite to the magnet one (3) with the same pole; the magnet two (4) is used to drive the magnet one (3) to rotate relative to the base (1).
2. The door panel sealing magnetic suction device according to claim 1, characterized in that, The base (1) is a U-shaped base, and the magnet (3) is disposed inside the U-shaped base; the two sides of the end of the U-shaped base are provided with through holes (1.1) opposite to each other, and the connecting structure (2) is movably connected to the through holes (1.1).
3. A door panel sealing magnetic suction device according to claim 2, characterized in that, The through hole (1.1) is an oblong hole, and the length direction of the oblong hole is perpendicular to the bottom surface of the U-shaped base.
4. A door panel sealing magnetic suction device according to claim 3, characterized in that, The length of the oblong hole is greater than the compression of the sealing strip used to seal between the door frame and the door panel.
5. A door panel sealing magnetic suction device according to claim 3, characterized in that, The connection structure (2) includes a connecting seat (2.1) and a connecting shaft (2.2). The connecting seat (2.1) is rotatably connected to the base (1) via the connecting shaft (2.2). The magnet (3) is connected to the connecting seat (2.1).
6. A door panel sealing magnetic suction device according to claim 5, characterized in that, The fixed end of the connecting shaft (2.2) is connected to the connecting seat (2.1), and the free end of the connecting shaft (2.2) is disposed through the through hole (1.1).
7. A door panel sealing magnetic suction device according to any one of claims 2-6, characterized in that, The bottom surface of the U-shaped base is provided with a through hole two, and the magnet two (4) is disposed in the through hole two.
8. A pressure-bearing door, characterized in that, The device includes a door frame (5), a door panel (6), a sealing strip (7), an iron block (8), and a magnetic suction device as described in any one of claims 1-7. The door panel (6) is hinged to the door frame (5). The sealing strip (7) is disposed on the door frame (5) to achieve a seal between the door frame (5) and the door panel (6) after the door is closed. The magnetic suction device is disposed on the door frame (5), and the iron block (8) is disposed on the door panel (6). The magnetic suction device and the iron block (8) are disposed correspondingly.
9. A pressure-bearing door according to claim 8, characterized in that, In the magnetic attraction device, the rotation direction of magnet 1 (3) is towards the door panel (6).
10. A pressurized building, characterized in that, It includes a pressurized building main structure and a pressure-bearing door as described in claim 9, wherein the pressure-bearing door is disposed on the pressurized building main structure.