A seal for a door

Abstract

The utility model discloses a sealing structure of door, including at least one double sealing structure, including first connecting piece, second connecting piece of being divided in door main part and door frame, be equipped with at least one first sealing protruding, at least one second contact portion on the first connecting piece, be equipped with at least one second sealing protruding that cooperates with second contact portion, at least one first contact portion that cooperates with first sealing protruding on the second connecting piece, and door main part and door frame close, and first sealing protruding is in contact with first contact portion, and second sealing protruding is in contact with second contact portion to realize double sealing, the utility model discloses simple structure, and the double occlusion structure of configuration still can play the sealing function under the slightly inclined state of the door main part of the flaw of installation, and the sealing fault tolerance is high.

Description

Technical Field

[0001] This utility model belongs to the field of door structure technology, specifically relating to a door sealing structure. Background Technology

[0002] Traditional doors use sealing strips at the connection between the door and the frame to achieve a seal when the door is closed. However, if the door body is not installed properly, misalignment can occur between the door body and the frame, affecting the sealing performance of the traditional sealing strip. Therefore, it is very important to obtain a door sealing structure with a high tolerance for sealing errors. Utility Model Content

[0003] To solve at least one of the above-mentioned technical problems, this utility model provides a door sealing structure, including at least one double sealing structure, including a first connector and a second connector respectively disposed on the door body and the door frame; the first connector is provided with at least one first sealing protrusion and at least one second contact portion; the second connector is provided with at least one second sealing protrusion that cooperates with the second contact portion and at least one first contact portion that cooperates with the first sealing protrusion. When the door body and the door frame are closed, the first sealing protrusion abuts against the first contact portion and the second sealing protrusion abuts against the second contact portion to achieve double sealing.

[0004] The first connector has at least one first hollow cavity, and the first sealing protrusion is formed on the side wall of the first hollow cavity.

[0005] The second connector has at least one second hollow cavity, and the second sealing protrusion is formed on the second hollow cavity. In the sealed state, the first sealing protrusion, the second sealing protrusion, and a portion of the outer wall of the first connector and a portion of the outer wall of the second connector form a sealed cavity.

[0006] It also includes at least one second sealing strip, which comprises two V-shaped arms, one of which is mounted on the door frame. When the door body is closed, it abuts against the other arm, causing the second sealing strip to deform and achieve a seal. It also includes at least one fourth sealing strip, which is disposed on the door body. A first groove is formed on the inner wall of the door frame, and the second sealing strip is installed in the first groove. When the door is closed, the fourth sealing strip abuts against the second groove formed on the inner wall of the door frame. The first and second grooves are offset from each other.

[0007] It also includes at least one third sealing strip, which is disposed on the door body and is made of a material that expands when heated to contact the inner wall of the door frame.

[0008] The door frame includes a steel outer frame, a steel inner frame fixed to the steel outer frame, and steel reinforcing ribs fixedly connected to the steel outer frame. Flame-retardant wood is filled between the inner wall of the steel inner frame and the outer wall of the steel reinforcing ribs. A third groove is formed on the door frame between the first and second grooves, and a heat insulation block is installed in the third groove. The second connector is at least partially installed in the third groove. Limiting grooves are formed on the outer wall of the first connector and on the third sealing strip, and limiting protrusions that cooperate with the limiting grooves are formed on the door body.

[0009] One side wall of the third recess is a steel outer door frame, and the other side wall is a steel inner door frame. A heat insulation block is installed between the steel inner door frame and the steel outer door frame and fixed with fasteners.

[0010] The double-sealing structure is made of EPDM; the second and third sealing strips are made of expansion material; and the fourth sealing strip is made of EPDM.

[0011] Compared with the prior art, the advantages of this utility model are as follows: This utility model has a simple structure, and the double interlocking structure can still play a sealing role even when the door body is slightly tilted due to installation defects, with a high sealing fault tolerance rate. This utility model adopts multiple sealing methods to increase the sealing performance, the setting of flame-retardant wood can improve the fireproof effect, the setting of steel reinforcing ribs on the outer frame can improve the strength of the door frame, and the connection between the inner and outer frames through heat insulation blocks can block the conduction of heat. Attached Figure Description

[0012] Figure 1 This is a top cross-sectional view of the door structure of this utility model; Figure 2 A schematic diagram of the door body in the open state; Figure 3 This is a schematic diagram of the cross-section of the door frame of this utility model.

[0013] Figure label: 1 main body; 201 First connector; 2011 First sealing protrusion; 2012 Second contact portion; 2013 First hollowed-out cavity; 202 Second connector; 2021 Second sealing protrusion; 2022 First contact portion; 2023 Second hollowed-out cavity; 203 Sealed cavity; 301 Second sealing strip; 302 Fourth sealing strip; 303 First groove; 304 Second groove; 305 Third sealing strip; 4. Door frame; 401 Steel door outer frame; 402 Steel door inner frame; 403 Steel reinforcing ribs of the outer frame; 404 Third groove; 405 Heat insulation block; 406 Flame-retardant timber; 501 Limiting protrusion; 502 Limiting groove. Detailed Implementation

[0014] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model concept, and are only a part of the embodiments of this utility model. The specific and direct description of related structures is only for the convenience of understanding this utility model, and the specific features do not necessarily or directly limit the scope of implementation of this utility model.

[0015] Referring to the accompanying drawings, the present invention adopts the following technical solution: a door sealing structure, including at least one double sealing structure, including a first connecting member 201 and a second connecting member 202 respectively disposed on the door body 1 and the door frame 4; the first connecting member is provided with at least one first sealing protrusion 2011 and at least one second contact portion 2012; the second connecting member is provided with at least one second sealing protrusion 2021 that cooperates with the second contact portion 2012 and at least one first contact portion 2022 that cooperates with the first sealing protrusion 2011. When the door body 1 and the door frame 4 are closed, the first sealing protrusion 2011 abuts against the first contact portion 2022 and the second sealing protrusion 2021 abuts against the second contact portion 2012 to achieve double sealing.

[0016] At least one first hollow cavity 2013 is provided on the first connector, and a first sealing protrusion 2011 is provided on the side wall of the first hollow cavity 2013.

[0017] At least one second hollowed-out cavity 2023 is provided on the second connector, and the second sealing protrusion 2021 is provided on the second hollowed-out cavity 2023. In the sealed state, the first sealing protrusion 2011, the second sealing protrusion 2021, and a portion of the outer wall of the first connector and a portion of the outer wall of the second connector form a sealed cavity 203.

[0018] It also includes at least one second sealing strip 301, which includes two V-shaped arms, one of which is mounted on the door frame 4. When the door body 1 is closed, it abuts against the other arm, causing the second sealing strip 301 to deform and achieve a seal. It also includes at least one fourth sealing strip 302, which is disposed on the door body 1. A first groove 303 is provided on the inner wall of the door frame 4, and the second sealing strip 301 is installed in the first groove 303. When the door is closed, the fourth sealing strip 302 abuts against a second groove 304 provided on the inner wall of the door frame 4. The first groove 303 and the second groove 304 are offset.

[0019] It also includes at least one third sealing strip 305, which is disposed on the door body 1 and is made of a material that expands when heated to contact the inner wall of the door frame 4.

[0020] The door frame 4 includes a steel outer frame 401, a steel inner frame 402 fixed to the steel outer frame, and an outer frame steel reinforcing rib 403 fixedly connected to the steel outer frame. Flame-retardant wood 406 is filled between the inner wall of the steel inner frame 402 and the outer wall of the outer frame steel reinforcing rib 403. A third groove 404 is provided on the door frame 4 between the first groove 303 and the second groove 304. A heat insulation block 405 is installed in the third groove 404, and the second connector is at least partially installed in the third groove 404. A limiting groove 502 is provided on the outer wall of the first connector and on the third sealing strip 305, and a limiting protrusion 501 that cooperates with the limiting groove 502 is provided on the door body 1.

[0021] One side wall of the third groove 404 is a steel door outer frame 401, and the other side wall is a steel door inner frame. A heat insulation block 405 is installed between the steel door inner frame 402 and the steel door outer frame and is fixed by fasteners.

[0022] The double-sealing structure is made of EPDM; the second sealing strip 301 and the third sealing strip 305 are made of expansion material; and the fourth sealing strip 302 is made of EPDM.

[0023] Compared with the prior art, the advantages of this utility model are as follows: This utility model has a simple structure, and the double interlocking structure can still play a sealing role even when the door body 1 is slightly tilted due to installation defects, with a high sealing error tolerance rate. This utility model adopts multiple sealing methods to increase the sealing performance. The setting of flame-retardant wood 406 can improve the fireproof effect. The setting of steel reinforcing ribs 403 on the outer frame can improve the strength of the door frame 4. The inner and outer frames are connected by heat insulation blocks 405 to block the conduction of heat.

[0024] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A door sealing structure, characterized in that: It includes at least one double sealing structure, including a first connector (201) and a second connector (202) respectively disposed on the door body (1) and the door frame (4). The first connector is provided with at least one first sealing protrusion (2011) and at least one second contact portion (2012). The second connector is provided with at least one second sealing protrusion (2021) that cooperates with the second contact portion (2012) and at least one first contact portion (2022) that cooperates with the first sealing protrusion (2011). When the door body (1) and the door frame (4) are closed, the first sealing protrusion (2011) abuts against the first contact portion (2022) and the second sealing protrusion (2021) abuts against the second contact portion (2012) to achieve double sealing.

2. The sealing structure of the door according to claim 1, characterized in that: At least one first hollow cavity (2013) is provided on the first connector, and a first sealing protrusion (2011) is provided on the side wall of the first hollow cavity (2013).

3. The sealing structure of the door according to claim 1, characterized in that: The second connector has at least one second hollow cavity (2023), and the second sealing protrusion (2021) is formed on the second hollow cavity (2023).

4. The sealing structure of the door according to claim 1, characterized in that: In the sealed state, a sealed chamber (203) is formed between the first sealing protrusion (2011), the second sealing protrusion (2021), and a portion of the outer wall of the first connector and a portion of the outer wall of the second connector.

5. The sealing structure of the door according to claim 1, characterized in that: It also includes at least one second sealing strip (301), which includes two arms in a V shape, one arm of which is mounted on the door frame (4), and the door body (1) in the closed state abuts against the other arm to deform the second sealing strip (301) to achieve a seal.

6. The sealing structure of the door according to claim 1, characterized in that: It also includes at least one third sealing strip (305), which is disposed on the door body (1) and is made of a material that expands when heated to contact the inner wall of the door frame (4).

7. The sealing structure of the door according to claim 5, characterized in that: It also includes at least one fourth sealing strip (302), which is disposed on the door body (1). A first groove (303) is provided on the inner wall of the door frame (4). A second sealing strip (301) is installed at the first groove (303). When the door is closed, the fourth sealing strip (302) abuts against the second groove (304) provided on the inner wall of the door frame (4). The first groove (303) and the second groove (304) are misaligned.

8. The sealing structure of the door according to claim 7, characterized in that: The door frame (4) includes a steel outer door frame (401), a steel inner door frame (402) fixed to the steel outer door frame, and an outer frame steel reinforcing rib (403) fixedly connected to the steel outer door frame.

9. The sealing structure of the door according to claim 8, characterized in that: Flame-retardant wood (406) is filled between the inner wall of the steel door inner frame (402) and the outer wall of the outer frame steel reinforcing rib (403). And / or, a third groove (404) is provided on the door frame (4) between the first groove (303) and the second groove (304), a heat insulation block (405) is installed in the third groove (404), and the second connector is at least partially installed in the third groove (404). And / or, a limiting groove (502) is provided on the outer wall of the first connector and on the third sealing strip (305), and a limiting protrusion (501) that cooperates with the limiting groove (502) is provided on the door body (1).

10. The sealing structure of the door according to claim 1, characterized in that: The double-sealing structure is made of EPDM; the second sealing strip (301) and the third sealing strip (305) are made of expansion material; the fourth sealing strip (302) is made of EPDM.

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