Civil air defense door sealing structure and civil air defense door

Abstract

The utility model discloses a civil air defense door sealing structure and a civil air defense door, and relates to the technical field of civil air defense door sealing, the civil air defense door sealing structure comprises a sealing strip and a sealing gasket, the sealing strip is provided with an elastic flash in the length direction of the sealing strip, and the elastic flash is made of an elastic rubber material. The civil air defense door has the effect of improving the sealing stability of the civil air defense door.

Description

Technical Field

[0001] The present application relates to the technical field of civil air defense door sealing, and in particular to a civil air defense door sealing structure. Background Art

[0002] The civil air defense door sealing structure refers to the sealing device used on the civil air defense door. Its main function is to ensure that the door can effectively isolate the external environment substances such as air, water, and poisonous gas when it is closed, so as to maintain the safety inside the civil air defense project.

[0003] At present, in order to solve the sealing problem of civil air defense doors, a sealing gasket is usually arranged on the inner side of the door frame. When the door leaf is closed, the edge of the door leaf and the sealing gasket are squeezed against each other, thereby sealing the gap between the door leaf and the door frame. However, the sealing gasket is prone to aging and deformation during long-term use, resulting in unstable sealing performance of the civil air defense door. Utility Model Content

[0004] In order to improve the sealing stability of the civil defense door, the present application provides a civil defense door sealing structure and a civil defense door.

[0005] In the first aspect, the present application provides a civil air defense door sealing structure, which adopts the following technical solution:

[0006] A sealing structure for a civil air defense door comprises a sealing strip and a sealing pad. The sealing strip is provided with an elastic burr along the length direction of the sealing strip, and the elastic burr is made of elastic rubber material.

[0007] Optionally, the cross-section of the elastic flash edge is U-shaped.

[0008] Optionally, an arc-shaped protrusion is provided on the elastic burr along the extension direction of the elastic burr.

[0009] In the second aspect, the present application provides a civil air defense door, which adopts the following technical solution:

[0010] A civil air defense door comprises a door frame and a door leaf hinged in the door frame, wherein the sealing strip is arranged inside the door frame along the circumference of the door frame, the sealing gasket is arranged at the edge of the door leaf along the circumference of the door leaf, and the elastic burr is arranged on a side away from the door frame and is used to abut the sealing gasket.

[0011] Optionally, an installation groove is opened on the inner side wall of the door frame along the circumference of the door frame, a installation frame is detachably arranged in the installation groove, and the sealing strip is arranged on the installation frame along the circumference of the installation frame.

[0012] Optionally, a sealing groove is provided on the side wall of the installation frame along the circumference of the installation frame, and a sealing rubber ring is provided in the sealing groove.

[0013] Optionally, sealant is provided at the connection between the sealing strip and the mounting frame.

[0014] Optionally, the installation frame is formed by splicing a plurality of frame strips, and each frame strip is independent of each other.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. The present application arranges the sealing strip inside the door frame along the circumference of the door frame, and arranges the sealing gasket at the edge of the door leaf along the circumference of the door leaf. When the civil air defense door is closed, the sealing gasket on the door leaf abuts against the elastic burring on the sealing strip and squeezes the elastic burring. Since the elastic burring itself has a certain elasticity, it will interact with and fit tightly with the sealing gasket, thereby sealing the gap between the door frame and the door leaf. An efficient seal is formed through the interaction between the sealing gasket and the elastic burring, so that both the sealing strip and the sealing gasket have good pressure resistance and impact resistance, thereby effectively improving the sealing stability of the civil air defense door.

[0017] 2. When the door leaf is closing, the elastic burr will not only be subjected to the extrusion force from the sealing gasket, but also to a certain pulling force from the sealing gasket. Over time, the elastic burr will be easily damaged. Therefore, the sealing strip needs to be replaced regularly. By detachably setting a mounting frame on the door frame and setting the sealing strip on the mounting frame, when replacing the sealing strip, the mounting frame can be removed from the door frame, making it easier to replace the sealing strip.

[0018] 3. The present application arranges a sealing rubber ring in the sealing groove of the installation frame. When the installation frame is installed in the installation groove of the door frame, the sealing rubber ring is used to seal the gap between the installation frame and the side wall of the installation groove, thereby increasing the sealing performance of the civil air defense door. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the sealing strip and the sealing gasket used in the embodiment of the present application;

[0020] Figure 2 It is a schematic diagram of the structure of a civil air defense door used in an embodiment of the present application;

[0021] Figure 3 It is a structural cross-sectional view of an embodiment of the present application, which is mainly used to express the sealing structure between the door frame and the door leaf;

[0022] Figure 4 It is a structural schematic diagram used to express the installation frame in an embodiment of the present application.

[0023] Explanation of the reference numerals: 1. Sealing strip; 11. Elastic burr; 12. Arc-shaped protrusion; 2. Sealing gasket; 3. Door frame; 31. Mounting groove; 4. Door leaf; 5. Mounting frame; 51. Frame strip; 52. Sealing groove; 53. Sealing rubber ring. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-4 This application is described in further detail.

[0025] The present application embodiment discloses a sealing structure for a civil air defense door. Figure 1 , including a sealing strip 1 and a sealing gasket 2, both of which are made of highly elastic and aging-resistant rubber material. An elastic burr 11 is arranged on the sealing strip 1 along the length direction of the sealing strip 1, and the elastic burr 11 is integrally formed with the sealing strip 1.

[0026] Reference Figure 1 The cross-section of the elastic flash 11 is "U"-shaped, and the middle part of the elastic flash 11 protrudes away from the sealing strip 1. An arc-shaped protrusion 12 is provided on the elastic flash 11 along the extension direction of the elastic flash 11. The arc-shaped protrusion 12 and the elastic flash 11 are integrally formed. When the elastic flash 11 and the sealing gasket 2 are squeezed against each other, the elastic flash 11 is deformed toward the sealing strip 1 by the force. At this time, the arc-shaped protrusion 12 presses against the surface of the sealing strip 1, thereby increasing the structural stability of the elastic flash 11, and maintaining a close fit between the elastic flash 11 and the sealing gasket 2, thereby increasing the sealing stability of the civil air defense door.

[0027] The implementation principle of a civil air defense door sealing structure in an embodiment of the present application is as follows: a sealing strip 1 is arranged inside the door frame 3 along the circumference of the door frame 3, and a sealing gasket 2 is arranged at the edge of the door leaf 4 along the circumference of the door leaf 4. When the civil air defense door is closed, the sealing gasket 2 on the door leaf 4 abuts against the elastic burr 11 on the sealing strip 1 and squeezes the elastic burr 11. Since the elastic burr 11 itself has a certain elasticity, it will interact with and fit tightly with the sealing gasket 2, thereby sealing the gap between the door frame 3 and the door leaf 4. An efficient seal is formed through the interaction between the sealing gasket 2 and the elastic burr 11, so that both the sealing strip 1 and the sealing gasket 2 have good pressure resistance and impact resistance, thereby effectively improving the sealing stability of the civil air defense door.

[0028] The present application also discloses a civil defense door. Figure 2 , 3 , including a door frame 3 and a door leaf 4 rotatably arranged in the door frame 3 through a hinge, a sealing gasket 2 is arranged at the edge of the door leaf 4 along the circumference of the door leaf 4, an installation groove 31 is opened on the inner side wall of the door frame 3 along the circumference of the door frame 3, an installation frame 5 is arranged in the installation groove 31, the installation frame 5 is adapted to the installation groove 31, the sealing strip 1 is connected end to end and is arranged in the installation frame 5 along the circumference of the installation frame 5.

[0029] Reference Figure 3 , 4The mounting frame 5 is formed by splicing a plurality of frame strips 51, and each frame strip 51 is independent of each other. The frame strips 51 are fixed in the mounting grooves 31 of the door frame 3 by bolts. The sealing strip 1 is fixed to each frame strip 51 of the mounting frame 5 by bolts, and the elastic burr 11 is arranged on the side away from the frame strip 51. A sealant is arranged at the connection between the sealing strip 1 and each frame strip 51, and the sealant adopts a high-viscosity, corrosion-resistant polyurethane sealant; because the elastic burr 11 is not only subjected to the extrusion force from the sealing gasket 2 during the closing process of the door leaf 4, but also subjected to a certain pulling force from the sealing gasket 2, over time, the elastic burr 11 is easily damaged, and therefore the sealing strip 1 needs to be replaced regularly, by detachably arranging the mounting frame 5 on the door frame 3, and arranging the sealing strip 1 on the mounting frame 5, when replacing the sealing strip 1, the mounting frame 5 is removed from the door frame 3, so that the sealing strip 1 is more convenient to replace.

[0030] Reference Figure 3 , 4 A sealing groove 52 is provided on the side wall of the frame strip 51 along the length direction of the frame strip 51, and when the frame strips 51 are spliced ​​into the installation frame 5, the sealing grooves 52 on the frame strips 51 are interconnected, and a sealing rubber ring 53 is provided in the sealing groove 52. When the installation frame 5 is spliced, the sealing rubber ring 53 is placed in the sealing groove 52 surrounded by the frame strips 51. When the installation frame 5 is installed in the installation groove 31 of the door frame 3, the gap between the installation frame 5 and the side wall of the installation groove 31 is sealed by the sealing rubber ring 53, thereby increasing the sealing performance of the civil air defense door.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sealing structure for a civil air defense door, characterized in that: It comprises a sealing strip (1) and a sealing pad (2); the sealing strip (1) is provided with an elastic burr (11) along the length direction of the sealing strip (1); the elastic burr (11) is made of elastic rubber material.

2. The sealing structure of a civil air defense door according to claim 1, characterized in that: The cross section of the elastic flash edge (11) is in a "U" shape.

3. The sealing structure of a civil air defense door according to claim 2, characterized in that: An arc-shaped protrusion (12) is provided on the elastic burr (11) along the extension direction of the elastic burr (11).

4. A civil air defense door, comprising the civil air defense door sealing structure according to any one of claims 1 to 3, characterized in that: It also comprises a door frame (3) and a door leaf (4) hinged in the door frame (3), wherein the sealing strip (1) is arranged inside the door frame (3) along the circumference of the door frame (3), the sealing gasket (2) is arranged at the edge of the door leaf (4) along the circumference of the door leaf (4), and the elastic flash (11) is arranged on a side away from the door frame (3) and is used to abut against the sealing gasket (2).

5. The civil air defense door according to claim 4, characterized in that: An installation groove (31) is provided on the inner side wall of the door frame (3) along the circumference of the door frame (3), a installation frame (5) is detachably arranged in the installation groove (31), and the sealing strip (1) is arranged on the installation frame (5) along the circumference of the installation frame (5).

6. The civil air defense door according to claim 5, characterized in that: A sealing groove (52) is provided on the side wall of the installation frame (5) along the circumference of the installation frame (5), and a sealing rubber ring (53) is provided in the sealing groove (52).

7. The civil air defense door according to claim 5, characterized in that: Sealant is provided at the connection between the sealing strip (1) and the installation frame (5).

8. The civil air defense door according to claim 5, characterized in that: The installation frame (5) is formed by splicing a plurality of frame strips (51), and the frame strips (51) are independent of each other.

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