Casement air-tight door

Abstract

The utility model discloses a side-hung airtight door, which belongs to the technical field of side-hung airtight doors and comprises a door frame, two groups of airtight door bodies are arranged in the door frame, and three groups of hinges are arranged between one ends of the airtight door bodies and one end of the door frame. One end of the airtight door body is rotationally connected to an inner cavity of the airtight door body through three sets of hinges, a locking assembly is arranged between the other end of the airtight door body and the inner wall of the door frame, and an airtight mechanism is arranged between one side of the airtight door body and one end of the door frame. A pressing assembly is arranged between one side of the airtight door body and one end of the door frame. Through cooperative use of the locking assembly, the airtight mechanisms and the pressing assembly, the double-leaf airtight door body can be pressed, the airtight mechanisms are more tightly attached, the airtight effect can be enhanced, the situation that the effect of the airtight door is reduced after a gap appears is avoided, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flat-hung airtight doors, in particular to a flat-hung airtight door. Background Art

[0002] Swing airtight doors are designed to prevent direct convection between the enclosed space and the outside air, creating a certain negative pressure within the enclosed space to reduce contamination between the two. They are used in locations with high airtightness and thermal insulation requirements, such as food processing plants and industrial plants. However, existing airtight doors lack a clamping mechanism between their edges and the doorframe, resulting in poor airtightness and impacting the door's effectiveness.

[0003] A Chinese patent with publication (announcement) number CN201495929U discloses an airtight door, particularly a swing-type airtight door for a pharmaceutical and biological clean room, which consists of a door frame and a door leaf, which are connected by a hinge, and a handle is provided on the door leaf. The invention is characterized in that a double-layer visual window is provided in the middle and upper part of the door leaf, and the door leaf consists of a door leaf frame, a double-layer visual window and a door leaf plate. The surface of the door leaf frame, the double-layer visual window, the door leaf plate and the door frame forms a flat horizontal plane as a whole. An automatic lifting airtight strip is provided under the door leaf. The door frame and door leaf frame used in the airtight door are made of aluminum, which is lighter and more economical than steel door frames.

[0004] The airtight door involved in the above patent still has some obvious shortcomings in actual use. The airtight door also has the problem of being inconvenient to install and press between its edge and the door frame. Therefore, we need to propose a swing airtight door. Utility Model Content

[0005] The purpose of the utility model is to provide a flat-hung airtight door, which has a structure for pressing the edge of the airtight door and the door frame when it is installed, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a swinging airtight door, comprising a door frame, two groups of airtight door bodies are arranged inside the door frame, three groups of hinges are arranged between one end of the airtight door body and one end of the door frame, and one end of the airtight door body is rotatably connected to the inner cavity of the airtight door body through the three groups of hinges, a locking assembly for locking the airtight door body is arranged between the other end of the airtight door body and the inner wall of the door frame, an airtight mechanism is arranged between one side of the airtight door body and one end of the door frame, and a pressing assembly for pressing the airtight mechanism is arranged between one side of the airtight door body and one end of the door frame.

[0007] Preferably, the clamping assembly includes a first rotating plate rotatably connected to one side of the airtight door body, one end of the first rotating plate passes through the airtight door body through a rotating shaft and extends to one side of the airtight door body and is connected to a clamping handle, and the other end of the first rotating plate is rotatably connected to a first transmission plate.

[0008] Preferably, two sets of second rotating plates are rotatably connected to both ends of the first transmission plate, one side of the second rotating plate is rotatably connected to one side of the airtight door body, and a clamping block is fixedly installed at one end of the second rotating plate.

[0009] Preferably, the clamping assembly further comprises two sets of clamping grooves opened on the inner wall of one end of the door frame, the interior of the clamping groove is adapted to match the surface of the clamping block, and the clamping block is slidably connected to the inner cavity of the clamping groove.

[0010] Preferably, the locking assembly includes a rotating disk rotatably connected to one side of the airtight door body, one side of the rotating disk passes through the airtight door body through a rotating shaft and extends to one side of the airtight door body and is connected to a locking handle, and two ends of the other side of the rotating disk are rotatably connected to two groups of second transmission plates.

[0011] Preferably, the locking assembly further comprises two sets of lock boxes fixedly mounted on both ends of one side of the airtight door body, the interior of the lock box is adapted to match the second transmission plate, and the second transmission plate is plugged into the inner cavity of the lock box.

[0012] Preferably, the locking assembly further comprises two groups of jacks opened at both ends of the door frame, the interior of the jacks is arranged corresponding to one end of the second transmission plate, and one end of the second transmission plate is slidably connected to the inner cavity of the jacks.

[0013] Preferably, the airtight mechanism includes a first airtight strip fixedly mounted on the inner wall of one side of the door frame and a second airtight strip fixedly mounted on one end of one side of the airtight door body. The first airtight strip and the second airtight strip are arranged correspondingly, and one side of the first airtight strip is attached to one side of the second airtight strip.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model cooperates with the locking assembly, the airtight mechanism and the pressing assembly to use the locking assembly to limit and fix the airtight door body to the inner cavity of the door frame, and then use the airtight mechanism to seal the gap between the airtight door body and the door frame. Then, the pressing assembly is used to squeeze the airtight mechanism between one end of the airtight door body and the inner wall of one end of the door frame, so that the double-leaf airtight door bodies can be compressed, the airtight mechanisms can be more closely fitted, the airtight effect can be enhanced, and the effect of the airtight door can be prevented from being reduced due to the appearance of gaps, thereby improving the practicality of the device.

[0016] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the opening structure of the compression assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the closed structure of the compression assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the utility model from a top view;

[0021] Figure 5 For this utility model Figure 4 Schematic diagram of the structure at point A.

[0022] In the figure: 1. Door frame; 2. Airtight door body; 3. Airtight mechanism; 301. First airtight strip; 302. Second airtight strip; 4. First rotating plate; 5. Pressing handle; 6. Second rotating plate; 7. Pressing block; 8. Pressing groove; 9. Rotating disk; 10. Locking handle; 11. Second transmission plate; 12. Lock box; 13. Jack; 14. First transmission plate; 15. Hinge. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-5The utility model provides a technical solution: a flat opening airtight door, comprising a door frame 1, an airtight door body 2, a hinge 15, a locking assembly, an airtight mechanism 3 and a pressing assembly.

[0025] Preferably, two groups of airtight door bodies 2 are provided inside the door frame 1, three groups of hinges 15 are provided between one end of the airtight door body 2 and one end of the door frame 1, and one end of the airtight door body 2 is rotatably connected to the inner cavity of the airtight door body 2 through the three groups of hinges 15, a locking assembly for locking the airtight door body 2 is provided between the other end of the airtight door body 2 and the inner wall of the door frame 1, an airtight mechanism 3 is provided between one side of the airtight door body 2 and one end of the door frame 1, and a pressing assembly for pressing the airtight mechanism 3 is provided between one side of the airtight door body 2 and one end of the door frame 1.

[0026] Specifically, through the coordinated use of the locking assembly, the airtight mechanism 3 and the pressing assembly, the locking assembly is used to limit and fix the airtight door body 2 to the inner cavity of the door frame 1, and then the airtight mechanism 3 is used to seal the gap between the airtight door body 2 and the door frame 1, and then the pressing assembly is used to squeeze the airtight mechanism 3 between one end of the airtight door body 2 and the inner wall of one end of the door frame 1, so that the double-leaf airtight door body 2 can be compressed, making the airtight mechanisms 3 more tightly fitted, which can enhance the airtight effect, avoid reducing the effect of the airtight door after the appearance of gaps, and improve the practicality of the device.

[0027] Preferably, the clamping assembly includes: a first rotating plate 4, a clamping handle 5, a first transmission plate 14, a second rotating plate 6, a clamping block 7 and a clamping groove 8. The first rotating plate 4 is rotatably connected to one side of the airtight door body 2, and one end of the first rotating plate 4 passes through the airtight door body 2 through a rotating shaft and extends to one side of the airtight door body 2 and is connected to the clamping handle 5. The other end of the first rotating plate 4 is rotatably connected to the first transmission plate 14. Both ends of the first transmission plate 14 are rotatably connected to two groups of second rotating plates 6. One side of the second rotating plate 6 is rotatably connected to one side of the airtight door body 2, and a clamping block 7 is fixedly installed at one end of the second rotating plate 6. Two groups of clamping grooves 8 are respectively opened on the inner wall of one end of the door frame 1, and the interior of the clamping groove 8 is adapted to the surface of the clamping block 7, and the clamping block 7 is slidably connected to the inner cavity of the clamping groove 8.

[0028] Preferably, the locking assembly includes: a rotating disk 9, a locking handle 10, a second transmission plate 11, a lock box 12 and a socket 13. The rotating disk 9 is rotatably connected to one side of the airtight door body 2. One side of the rotating disk 9 passes through the airtight door body 2 through a rotating shaft and extends to one side of the airtight door body 2 and is connected to the locking handle 10. The two ends of the other side of the rotating disk 9 are rotatably connected to two groups of second transmission plates 11. One side of the two groups of lock boxes 12 are respectively fixedly installed on the two ends of one side of the airtight door body 2. The interior of the lock box 12 is adapted to match the second transmission plate 11, and the second transmission plate 11 is inserted into the inner cavity of the lock box 12. Two groups of sockets 13 are respectively opened at both ends of the door frame 1. The interior of the socket 13 is corresponding to one end of the second transmission plate 11, and one end of the second transmission plate 11 is slidably connected to the inner cavity of the socket 13.

[0029] Preferably, the airtight mechanism 3 includes: a first airtight strip 301 and a second airtight strip 302, the first airtight strip 301 is fixedly installed on the inner wall of one side of the door frame 1, and the second airtight strip 302 is fixedly installed on one end of one side of the airtight door body 2, the first airtight strip 301 and the second airtight strip 302 are arranged correspondingly, and one side of the first airtight strip 301 is attached to one side of the second airtight strip 302.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flat opening airtight door, characterized by: The invention comprises a door frame (1), wherein two groups of airtight door bodies (2) are arranged inside the door frame (1), three groups of hinges (15) are arranged between one end of the airtight door body (2) and one end of the door frame (1), and one end of the airtight door body (2) is rotatably connected to the inner cavity of the airtight door body (2) through the three groups of hinges (15), a locking assembly for locking the airtight door body (2) is arranged between the other end of the airtight door body (2) and the inner wall of the door frame (1), an airtight mechanism (3) is arranged between one side of the airtight door body (2) and one end of the door frame (1), and a pressing assembly for pressing the airtight mechanism (3) is arranged between one side of the airtight door body (2) and one end of the door frame (1).

2. The flat opening airtight door according to claim 1, characterized in that: The clamping assembly comprises a first rotating plate (4) rotatably connected to one side of the airtight door body (2); one end of the first rotating plate (4) passes through the airtight door body (2) via a rotating shaft and extends to one side of the airtight door body (2) to be connected to a clamping handle (5); the other end of the first rotating plate (4) is rotatably connected to a first transmission plate (14).

3. The flat-hung airtight door according to claim 2, characterized in that: Two sets of second rotating plates (6) are rotatably connected at both ends of the first transmission plate (14), one side of the second rotating plate (6) is rotatably connected to one side of the airtight door body (2), and a pressing block (7) is fixedly installed at one end of the second rotating plate (6).

4. The flat-hung airtight door according to claim 3, characterized in that: The clamping assembly further comprises two groups of clamping grooves (8) provided on the inner wall of one end of the door frame (1); the interior of the clamping grooves (8) is adapted to the surface of the clamping block (7), and the clamping block (7) is slidably connected to the inner cavity of the clamping grooves (8).

5. The flat-hinged airtight door according to claim 1, characterized in that: The locking assembly comprises a rotating disk (9) rotatably connected to one side of the airtight door body (2); one side of the rotating disk (9) passes through the airtight door body (2) via a rotating shaft and extends to one side of the airtight door body (2) to be connected to a locking handle (10); and two ends of the other side of the rotating disk (9) are rotatably connected to two sets of second transmission plates (11).

6. The flat-hung airtight door according to claim 5, characterized in that: The locking assembly further comprises two sets of lock boxes (12) fixedly mounted on both ends of one side of the airtight door body (2); the interior of the lock box (12) is adapted to match the second transmission plate (11), and the second transmission plate (11) is plugged into the inner cavity of the lock box (12).

7. The flat-hinged airtight door according to claim 6, characterized in that: The locking assembly further comprises two groups of jacks (13) provided at both ends of the door frame (1), the interior of the jacks (13) being arranged corresponding to one end of the second transmission plate (11), and one end of the second transmission plate (11) being slidably connected to the inner cavity of the jacks (13).

8. The flat-hinged airtight door according to claim 1, characterized in that: The airtight mechanism (3) comprises a first airtight strip (301) fixedly mounted on the inner wall of one side of the door frame (1) and a second airtight strip (302) fixedly mounted on one end of one side of the airtight door body (2), wherein the first airtight strip (301) and the second airtight strip (302) are arranged correspondingly, and one side of the first airtight strip (301) is in contact with one side of the second airtight strip (302).

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