Inflatable door hinge

Abstract

The utility model discloses an inflatable door hinge which comprises a door frame hinge fixedly installed with a door frame and a door leaf hinge fixedly installed with a door leaf, internal airflow channels are arranged in the door frame hinge and the door leaf hinge, and an air pipe connector of the door leaf hinge is connected with an air pressure system through an air pipe. The air pipe connector of the door frame hinge is connected with the air bag between the door frame and the door leaf through an air pipe. Air pressure of the air pressure system is transmitted into the air bag through internal air flow channels of the door leaf hinge and the door frame hinge, the air bag is inflated, certain pressure is kept, the periphery of the air bag is expanded after the air bag is inflated, the door frame and the door leaf are tightly pressed, and the door frame and the door leaf are completely sealed. When the door needs to be opened between the door leaf and the door frame, the air bag can release air pressure through the door frame hinge and the inner airflow channel of the door leaf hinge, so that the door leaf and the door frame are loosened, and the air bag door can be widely applied to production workshops, laboratories, hospitals, electronic factories and other places needing highly clean and sterile environments.

Description

Technical Field

[0001] The utility model relates to the field of hinges, in particular to an inflatable door hinge. Background Art

[0002] The door frame and door leaf in highly clean and sterile environment are hinged by airtight hinges. One side of the airtight hinge is fixed to the door frame and connected to the air pressure system through an air pipe, and the other side of the airtight hinge is fixed to the door leaf and connected to the air bag between the door frame and the door leaf through the air pipe. When the door leaf and the door frame are closed, the air bag is inflated to form a seal between the door leaf and the door frame. When the door leaf and the door frame are expanded, the air bag is deflated to open the door leaf and the door frame. The air pipes connected by the existing airtight hinges are exposed on the surface of the door frame and the door leaf, which makes the air pipes easily scratched and leaked during use, and the exposed air pipes affect the appearance of the door frame and the door leaf. Utility Model Content

[0003] The utility model solves the problem that the air pipe of the existing airtight hinge is exposed on the outer sides of the door frame and the door leaf.

[0004] The technical solution adopted by the utility model is: an inflatable door hinge, including a door frame hinge fixedly installed on the door frame and a door leaf hinge fixedly installed on the door leaf, the door frame hinge and the door leaf hinge are both provided with internal air flow channels, and the internal air flow channels of the door frame hinge and the door leaf hinge are interconnected, the air pipe joint of the door leaf hinge is connected to the air pressure system through an air pipe, and the air pipe joint of the door frame hinge is connected to the air bag between the door frame and the door leaf through an air pipe.

[0005] Furthermore, the door leaf hinge and the door frame hinge are connected via plug screws with a hollow structure.

[0006] Furthermore, one end of the driving screw is arranged in the internal air flow channel of the door leaf hinge and is threadedly connected, and the other end of the driving screw is arranged in the internal air flow channel of the door frame hinge.

[0007] Furthermore, a wear-resistant gasket and a wear-resistant sealing ring are provided on the outer side of the plug screw, and the wear-resistant gasket and the wear-resistant sealing ring are arranged between the door leaf hinge and the door frame hinge.

[0008] Furthermore, a second wear-resistant sealing ring is provided at one end of the driving screw connected to the door frame hinge.

[0009] Furthermore, a hexagonal plug is provided in the door frame hinge.

[0010] Furthermore, the hexagon socket plug is correspondingly arranged on the outer side of the plug screw.

[0011] Furthermore, the hexagon socket plug is threadedly connected to the door frame hinge.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the air pressure of the air pressure system is transmitted to the airbag through the internal air flow channels of the door leaf hinge and the door frame hinge, so as to inflate the airbag and maintain a certain pressure. After the airbag is inflated, it expands and presses the door frame and the door leaf tightly around, so that the door frame and the door leaf are completely sealed. When the door needs to be opened between the door leaf and the door frame, the airbag releases the air pressure through the internal air flow channels of the door frame hinge and the door leaf hinge, so that the door leaf and the door frame are loosened. The utility model can be widely used in production workshops, laboratories, hospitals, electronics factories and other places that require a highly clean and sterile environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the connection structure between the door frame hinge and the door leaf hinge of the utility model;

[0014] Figure 2 It is an exploded view between the door frame hinge and the door leaf hinge of the utility model;

[0015] Figure 3 It is a cross-sectional view of a door frame hinge and a door leaf hinge of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure in which the hinge of the utility model is connected to the air bag through the air tube;

[0017] Figure 5 This is a schematic diagram of the structure in which the door leaf and the door frame of the utility model are connected by hinges;

[0018] Figure 6 It is a schematic diagram of the structure of the air bag between the door leaf hinge and the door frame hinge before inflation of the utility model;

[0019] Figure 7 It is a schematic diagram of the structure after the airbag between the door leaf hinge and the door frame hinge of the utility model is inflated.

[0020] Figure numerals: door frame hinge 10; door leaf hinge 20; internal air flow channel 11; air pipe joint 21; air pipe 12; air bag 13; plug screw 30; wear-resistant gasket 31; wear-resistant sealing ring 32; second wear-resistant sealing ring 33; hexagon socket plug 14. DETAILED DESCRIPTION

[0021] like Figures 1 to 7The invention discloses an inflatable door hinge, comprising a door frame hinge 10 fixedly mounted on a door frame and a door leaf hinge 20 fixedly mounted on a door leaf, wherein both the door frame hinge 10 and the door leaf hinge 20 are provided with an internal air flow channel 11, and the internal air flow channels 11 of the door frame hinge 10 and the door leaf hinge 20 are interconnected, and the air pipe joint 21 of the door leaf hinge 20 is connected to the air pressure system through an air pipe 12, and the air pipe joint 21 of the door frame hinge 10 is connected to the air bag 13 between the door frame and the door leaf through the air pipe 12.

[0022] The door frame and the door leaf are connected by an inflatable door hinge. The air pressure of the pneumatic system is transmitted to the airbag 13 through the door leaf hinge 20 and the internal air flow channel 11 of the door frame hinge 10, so as to inflate the airbag 13 and maintain a certain pressure. After being inflated, the airbag 13 expands and presses the door frame and the door leaf tightly on all sides, so that the door frame and the door leaf are completely sealed.

[0023] When the door needs to be opened between the door leaf and the door frame, the airbag 13 will release air pressure through the internal air flow channel 11 of the door frame hinge 10 and the door leaf hinge 20, so that the door leaf and the door frame are loosened. It can be widely used in production workshops, laboratories, hospitals, electronics factories and other places that require a highly clean and sterile environment.

[0024] The door leaf hinge 20 is connected to the door frame hinge 10 via a hollow-structured plug screw 30, one end of which is disposed in the internal air flow channel 11 of the door leaf hinge 20 and is threadedly connected, while the other end of the plug screw 30 is disposed in the internal air flow channel 11 of the door frame hinge 10, so that the door leaf hinge 20 and the door frame hinge 10 are connected via the plug screw 30, and air pressure can pass through the plug screw 30.

[0025] The outer side of the driving screw 30 is provided with a wear-resistant gasket 31 and a wear-resistant sealing ring 32. The wear-resistant gasket 31 and the wear-resistant sealing ring 32 are arranged between the door hinge 20 and the door frame hinge 10, so as to provide wear resistance and sealing between the door frame hinge 10 and the door hinge 20.

[0026] A second wear-resistant sealing ring 33 is disposed at one end of the driving screw 30 connected to the door frame hinge 10 . The second wear-resistant sealing ring 33 can seal between the driving screw 30 and the door frame hinge 10 .

[0027] The door frame hinge 10 is provided with a hexagon socket plug 14, which is correspondingly arranged on the outer side of the plug screw 30. The hexagon socket plug 14 is threadedly connected to the door frame hinge 10. When in use, the hexagon socket plug 14 is opened to remove the plug screw 30 connecting the door frame hinge 10 and the door leaf hinge 20. The hexagon socket plug 14 can also prevent air pressure leakage in the door frame hinge 10.

Claims

1. An inflatable door hinge, comprising a door frame hinge (10) fixedly mounted on a door frame and a door leaf hinge (20) fixedly mounted on a door leaf, characterized in that: The door frame hinge (10) and the door leaf hinge (20) are both provided with an internal air flow channel (11), and the internal air flow channels (11) of the door frame hinge (10) and the door leaf hinge (20) are interconnected; the air pipe joint (21) of the door leaf hinge (20) is connected to the air pressure system via an air pipe (12); and the air pipe joint (21) of the door frame hinge (10) is connected to the air bag (13) between the door frame and the door leaf via the air pipe (12).

2. The inflatable door hinge according to claim 1, characterized in that: The door leaf hinge (20) is connected to the door frame hinge (10) via a hollow-structured plug screw (30).

3. The inflatable door hinge according to claim 2, characterized in that: One end of the driving screw (30) is arranged in the internal air flow channel (11) of the door leaf hinge (20) and is screwed together, and the other end of the driving screw (30) is arranged in the internal air flow channel (11) of the door frame hinge (10).

4. The inflatable door hinge according to claim 3, characterized in that: The outer side of the plug screw (30) is provided with a wear-resistant gasket (31) and a wear-resistant sealing ring (32), and the wear-resistant gasket (31) and the wear-resistant sealing ring (32) are arranged between the door leaf hinge (20) and the door frame hinge (10).

5. The inflatable door hinge according to claim 4, characterized in that: One end of the plug screw (30) connected to the door frame hinge (10) is provided with a second wear-resistant sealing ring (33).

6. The inflatable door hinge according to claim 2, characterized in that: The door frame hinge (10) is provided with a hexagon socket plug (14).

7. The inflatable door hinge according to claim 6, characterized in that: The hexagon socket plug (14) is correspondingly arranged on the outer side of the plug screw (30).

8. The inflatable door hinge according to claim 7, characterized in that: The hexagonal plug (14) is threadedly connected to the door frame hinge (10).

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