Sealing device for airtight door

By designing guide rails and slider systems and air pump pumping devices on the airtight doors, the leakage problem at the connection between the airtight doors and the walls is solved, and efficient sealing of the airtight doors is achieved.

CN223227280UActive Publication Date: 2025-08-15SHANDONG QITE RAY PROTECTION EQUIPMENT CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422430094.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-08-15
Estimated Expiration
2034-10-09

AI Technical Summary

Technical Problem

When the existing airtight door is closed, leakage is prone to the connection between the door body and the wall, and the internal seal cannot be guaranteed.

Method used

A sealing device including a guide rail, a moving wheel, a slider, a screw, a turntable, a sealing plate and an air pump is designed. The moving wheel rolls on the inside of the guide rail, driving the slider and the sealing plate to move until it fits with the wall, and gas is extracted through the air pump to ensure that the connection between the sealing ring and the airtight door body is sealed.

Benefits of technology

Effectively prevent leakage at the connection between the airtight door and the wall, ensure the sealing and stability of the airtight door, and improve the sealing effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223227280U_ABST
    Figure CN223227280U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of air-tight doors, in particular to a sealing device for an air-tight door, which comprises a wall body, a guide rail is fixedly connected to the outer surface of the wall body, moving wheels are slidably connected to the inner side of the guide rail, and an air-tight door body is fixedly connected to the lower surfaces of the moving wheels. The movable wheels roll on the inner sides of the guide rails, so that the air-tight door body is moved to the sealing opening, the sides, close to the wall, of the upper end and the lower end of the air-tight door body are attached to the second sealing plate, then the rotating disc is rotated, the lead screw is rotated, and the sliding block is driven to slide on the inner side of the first sliding groove; and the first sealing plate is driven to move towards the wall body until the sealing strip slides into the inner side of the sealing groove, so that the joint of the wall body and the air-tight door body is sealed through connection of the sealing strip and the sealing groove and attachment of the second sealing plate and the air-tight door body, and the sealing performance of the device is guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of airtight doors, in particular to a sealing device for airtight doors. Background Art

[0002] Airtight door is a set of doors that integrates airtightness, sound insulation, pressure resistance and radiation protection. It is widely used in industrial and mining enterprises and nuclear power plants.

[0003] When the existing sealed door is closed, leakage may occur at the connection between the door body and the wall, and the internal sealing cannot be guaranteed, thereby affecting the external connection. Utility Model Content

[0004] The purpose of the present invention is to provide a sealing device for an airtight door, so as to solve the problem in the above background technology that leakage may occur at the connection between the door body and the wall and the internal sealing cannot be guaranteed.

[0005] The cam is fixedly provided with a toothed plate on the outside of the cam and is fixedly provided with a toothed plate on the inside of the cam, and the toothed plate is fixedly provided with a toothed plate on the inside of the cam.

[0006] Preferably, the upper end of the outer surface of the airtight door body is connected to an air pump by bolts, the output end of the air pump is connected to a connecting pipe, the connecting pipe passes through the airtight door body and is connected to an air vent, and the outer surface of the connecting pipe is fixedly connected to a sealing ring.

[0007] Preferably, the guide rails are arranged in two groups and connected at the upper and lower parts of the airtight door body, the airtight door body is in a plate-like shape, the slide groove 1 is a rectangular groove, the slider is in a plate-like shape, the slider is in two groups, the screw rod is rod-shaped, and the screw rod is rotatably connected to the inner side of the slide groove 1. Its function is to move the airtight door body to the sealing port by rolling the moving wheel on the inner side of the guide rail, and then rotate the turntable to rotate the screw rod, thereby driving the slider to slide on the inner side of the slide groove 1, thereby driving the sealing plate 1 to move toward the wall.

[0008] Preferably, the guide block is plate-shaped and is in four groups. The guide rod is fixedly connected to the inner side of the second slide groove. Its function is to rotate the turntable to rotate the screw rod, so that the slider slides on the inner side of the first slide groove, and thereby drives the sealing plate 1 to slide on the outer surface of the airtight door body, so that the guide block slides on the outer surface of the guide rod, so that the sliding of the sealing plate 1 is more stable.

[0009] Preferably, the sealing plate 1 is in a pyramidal shape, the sealing plate 1 is in two groups, the sealing strip is in a strip shape, the sealing strip is in three groups, the sealing groove is a rectangular groove, the sealing groove is adapted to the sealing strip, and the sealing strip is opened on the outer surface of the wall. Its function is to slide the sealing plate 1 on the outer surface of the airtight door body toward the wall, so that the sealing strip is slidably connected to the inner side of the sealing groove, and through the connection between the sealing strip and the sealing groove, the two sides of the airtight door body are more tightly connected to the wall.

[0010] Preferably, the sealing plate 2 is in the shape of a rectangular plate, and the sealing plate 2 is in two groups. The sealing plate 2 is fixedly connected to the inner side of the wall, and the airtight door body is fitted with the two groups of sealing plates 2. Its function is to move the airtight door body to the sealing opening of the wall so that the upper and lower ends of the rear side of the airtight door body are fitted with the two groups of sealing plates 2, thereby making the upper and lower ends of the airtight door body more tightly connected to the wall.

[0011] Preferably, the connecting pipe is tubular in shape, passes through the airtight door body and is fixedly connected to the air vent pipe, and the sealing ring is annular in shape, fixedly connected to the airtight door body. Its function is to start the air pump so that the air pump can extract the internal gas through the sealing ring and the air vent pipe. Under the action of the air vent pipe, the connection between the sealing ring and the airtight door body is ensured to be in a sealed state.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The moving wheel rolls on the inner side of the guide rail to move the airtight door body to the sealing port, so that the upper and lower ends of the airtight door body are close to the side of the wall and fit with the sealing plate 2. Then, by rotating the turntable, the screw rod rotates, thereby driving the slider to slide on the inner side of the slide groove 1, thereby driving the sealing plate 1 to move toward the wall until the sealing strip slides into the inner side of the sealing groove. The connection between the sealing strip and the sealing groove and the fit between the sealing plate 2 and the airtight door body are used to seal the connection between the wall and the airtight door body, thereby ensuring the sealing of the device.

[0014] 2. By starting the air pump, the air pump extracts the internal gas through the sealing ring and the air vent. Under the action of the air vent, the connection between the sealing ring and the airtight door body is ensured to be in a sealed state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a frontal perspective schematic diagram of the structure of the present utility model;

[0016] Figure 2 This is a front plan view of the structure of the present invention;

[0017] Figure 3 For this utility model Figure 1 Schematic diagram of the connection structure between the middle wall and the airtight door body;

[0018] Figure 4 For this utility model Figure 3 A schematic diagram of the cross-sectional structure of the middle airtight door body;

[0019] Figure 5 For this utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0020] In the figure: 1. Wall; 2. Guide rail; 3. Moving wheel; 4. Airtight door body; 5. Slide groove 1; 6. Slider; 7. Screw rod; 8. Turntable; 9. Slide groove 2; 10. Guide block; 11. Guide rod; 12. Sealing plate 1; 13. Sealing strip; 14. Sealing groove; 15. Sealing plate 2; 16. Air pump; 17. Connecting pipe; 18. Air vent; 19. Sealing ring. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-5 , an embodiment provided by the utility model:

[0023] A sealing device for an airtight door comprises a wall 1, wherein the outer surface of the wall 1 is fixedly connected to a guide rail 2, the inner side of the guide rail 2 is slidably connected to a moving wheel 3, the lower surface of the moving wheel 3 is fixedly connected to an airtight door body 4, a slide groove 5 is provided in the middle part of the inner side of the airtight door body 4, the inner side of the slide groove 5 is slidably connected to a slider 6, the inner side of the slider 6 is connected to a screw rod 7 through a screw sleeve, the outer surface of the screw rod 7 is fixedly connected to a turntable 8, the upper and lower ends of the inner side of the airtight door body 4 are provided with a slide groove 2, the inner side of the slide groove 29 is slidably connected to a guide block 10, the inner side of the guide block 10 is slidably connected to a guide rod 11, the sides of the slider 6 and the guide block 10 are fixedly connected to a sealing plate 12, the outer surface of the sealing plate 12 is fixedly connected to a sealing strip 13, the outer surface of the sealing strip 13 is slidably connected to a sealing groove 14, and the upper and lower ends of the inner side of the wall 1 are fixedly connected to a sealing plate 2 15.

[0024] Furthermore, the upper end of the outer surface of the airtight door body 4 is connected to an air pump 16 by bolts, the output end of the air pump 16 is connected to a connecting pipe 17, the connecting pipe 17 passes through the airtight door body 4 and is connected to an air vent 18, and the outer surface of the connecting pipe 17 is fixedly connected to a sealing ring 19.

[0025] Furthermore, the guide rails 2 are arranged in two groups and connected to the upper and lower parts of the airtight door body 4. The airtight door body 4 is in a plate-like shape, the slide groove 5 is a rectangular groove, the slider 6 is in a plate-like shape, the slider 6 is in two groups, and the screw rod 7 is rod-shaped. The screw rod 7 is rotatably connected to the inner side of the slide groove 5. Its function is to move the airtight door body 4 to the sealing mouth by rolling the moving wheel 3 on the inner side of the guide rail 2, and then rotate the turntable 8 to make the screw rod 7 rotate, thereby driving the slider 6 to slide on the inner side of the slide groove 5, thereby driving the sealing plate 12 to move toward the wall 1.

[0026] Furthermore, the guide block 10 is plate-shaped and is in four groups. The guide rod 11 is fixedly connected to the inner side of the slide groove 2 9. Its function is to rotate the turntable 8 to rotate the screw rod 7, thereby causing the slider 6 to slide on the inner side of the slide groove 1 5, and thereby driving the sealing plate 12 to slide on the outer surface of the airtight door body 4, thereby causing the guide block 10 to slide on the outer surface of the guide rod 11, so that the sliding of the sealing plate 12 is more stable.

[0027] Furthermore, the sealing plate 12 is in a pyramidal shape, and the sealing plates 12 are in two groups. The sealing strip 13 is in a strip shape, and the sealing strip 13 is in three groups. The sealing groove 14 is a rectangular groove, and the sealing groove 14 is adapted to the sealing strip 13. The sealing strip 13 is opened on the outer surface of the wall 1. Its function is to slide the sealing plate 12 on the outer surface of the airtight door body 4 toward the wall 1, so that the sealing strip 13 is slidably connected to the inner side of the sealing groove 14, so that the two sides of the airtight door body 4 are more tightly connected to the wall 1 through the connection between the sealing strip 13 and the sealing groove 14.

[0028] Furthermore, the sealing plate 2 15 is in the shape of a rectangular plate, and the sealing plate 2 15 is in two groups. The sealing plate 2 15 is fixedly connected to the inner side of the wall 1, and the airtight door body 4 is fitted with the two groups of sealing plates 2 15. Its function is to move the airtight door body 4 to the sealing port of the wall 1 so that the upper and lower ends of the rear side of the airtight door body 4 are fitted with the two groups of sealing plates 2 15, thereby making the upper and lower ends of the airtight door body 4 more tightly connected to the wall 1.

[0029] Furthermore, the connecting pipe 17 is tubular in shape, passes through the airtight door body 4 and is fixedly connected to the air vent pipe 18, and the sealing ring 19 is annular in shape, and is fixedly connected to the airtight door body 4. Its function is to start the air pump 16 so that the air pump 16 extracts the internal gas through the sealing ring 19 and the air vent pipe 18. Under the action of the air vent pipe 18, the connection between the sealing ring 19 and the airtight door body 4 is ensured to be in a sealed state.

[0030] Working principle: A guide rail 2 is fixedly connected to the outer surface of the wall 1, a moving wheel 3 is slidably connected to the inner side of the guide rail 2, an airtight door body 4 is fixedly connected to the lower surface of the moving wheel 3, a slide groove 5 is provided at the inner middle part of the inner side of the airtight door body 4, a slider 6 is slidably connected to the inner side of the slide groove 5, a screw rod 7 is connected to the inner side of the slider 6 through a screw sleeve, a turntable 8 is fixedly connected to the outer surface of the screw rod 7, a slide groove 2 9 is provided at the upper and lower ends of the inner side of the airtight door body 4, a guide block 10 is slidably connected to the inner side of the guide block 10, a guide rod 11 is slidably connected to the inner side of the guide block 10, a sealing plate 12 is fixedly connected to the side of the slider 6 and the guide block 10, a sealing strip 13 is fixedly connected to the outer surface of the sealing strip 13 It is dynamically connected with a sealing groove 14, and the upper and lower ends of the inner side of the wall 1 are fixedly connected with a sealing plate 2 15. The moving wheel 3 rolls on the inner side of the guide rail 2, thereby moving the airtight door body 4 to the sealing mouth, so that the upper and lower ends of the airtight door body 4 are close to the side of the wall 1 and fit with the sealing plate 2 15, and then by rotating the turntable 8, the screw rod 7 is rotated, thereby driving the slider 6 to slide on the inner side of the slide groove 15, thereby driving the sealing plate 12 to move toward the wall 1, until the sealing strip 13 slides into the inner side of the sealing groove 14, thereby through the connection between the sealing strip 13 and the sealing groove 14 and the fit between the sealing plate 2 15 and the airtight door body 4, the connection between the wall 1 and the airtight door body 4 is sealed, thereby ensuring the sealing of the device.

[0031] An air pump 16 is connected to the upper end of the outer surface of the airtight door body 4 by bolts, and the output end of the air pump 16 is connected to a connecting pipe 17. The connecting pipe 17 passes through the airtight door body 4 and is connected to an air vent pipe 18. The outer surface of the connecting pipe 17 is fixedly connected to a sealing ring 19. By starting the air pump 16, the air pump 16 extracts the internal gas through the sealing ring 19 and the air vent pipe 18. Under the action of the air vent pipe 18, the connection between the sealing ring 19 and the airtight door body 4 is ensured to be in a sealed state.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A sealing device for an airtight door, comprising a wall (1), characterized in that: The outer surface of the wall (1) is fixedly connected to a guide rail (2), the inner side of the guide rail (2) is slidably connected to a moving wheel (3), the lower surface of the moving wheel (3) is fixedly connected to an airtight door body (4), a sliding groove (5) is provided in the middle of the inner side of the airtight door body (4), the inner side of the sliding groove (5) is slidably connected to a slider (6), the inner side of the slider (6) is connected to a screw rod (7) through a screw sleeve, the outer surface of the screw rod (7) is fixedly connected to a turntable (8), the inner side of the airtight door body (4) is provided with a sliding groove (5), the inner side of the sliding groove (5) is provided with a sliding block (6), the inner side of the sliding block (6) is connected to a screw rod (7) through a screw sleeve, the outer surface of the screw rod (7) is fixedly connected to a turntable (8), the inner side of the airtight door body (4) is provided with a sliding groove (5), the inner side of the sliding block (6) is provided with ... sliding groove (5), the inner side of the sliding block (6) is provided with a screw rod (7), the outer surface of the screw rod (7) is fixedly connected to a turntable (8), the inner side of the airtight door body (4) is provided with a sliding groove (5), the inner side of the sliding block (6) is provided with a sliding groove (5), the inner side of the sliding block (6) is provided with a sliding groove (5), the inner side of the sliding block (6) is provided with a screw rod (7), the inner side of the sliding block (6) is provided with a screw rod (7), the outer surface of the screw rod (7) is fixedly connected to a turntable ( A second slide groove (9) is provided at the upper and lower ends of the side, the inner side of the second slide groove (9) is slidably connected to a guide block (10), the inner side of the guide block (10) is slidably connected to a guide rod (11), the side surfaces of the slider (6) and the guide block (10) are fixedly connected to a sealing plate (12), the outer surface of the sealing plate (12) is fixedly connected to a sealing strip (13), the outer surface of the sealing strip (13) is slidably connected to a sealing groove (14), and the inner upper and lower ends of the wall (1) are fixedly connected to a second sealing plate (15).

2. A sealing device for an airtight door according to claim 1, characterized in that: The upper end of the outer surface of the airtight door body (4) is connected to an air pump (16) via bolts, the output end of the air pump (16) is connected to a connecting pipe (17), the connecting pipe (17) passes through the airtight door body (4) and is connected to an air duct (18), and the outer surface of the connecting pipe (17) is fixedly connected to a sealing ring (19).

3. The sealing device for an airtight door according to claim 1, characterized in that: The guide rails (2) are arranged in two groups and connected to the upper and lower parts of the airtight door body (4); the airtight door body (4) is in a plate-like shape; the slide groove (5) is a rectangular groove; the slider (6) is in a plate-like shape; the slider (6) is in two groups; the screw rod (7) is in a rod-like shape; and the screw rod (7) is rotatably connected to the inner side of the slide groove (5).

4. The sealing device for an airtight door according to claim 3, characterized in that: The guide block (10) is in a plate-like shape and is in four groups. The guide rod (11) is fixedly connected to the inner side of the second slide groove (9).

5. The sealing device for an airtight door according to claim 4, characterized in that: The sealing plate (12) is in a pyramidal shape and is provided in two groups. The sealing strip (13) is in a strip shape and is provided in three groups. The sealing groove (14) is in a rectangular groove and is adapted to fit the sealing strip (13). The sealing strip (13) is provided on the outer surface of the wall (1).

6. The sealing device for an airtight door according to claim 1, characterized in that: The second sealing plate (15) is in the shape of a rectangular plate. The second sealing plate (15) is in two groups. The second sealing plate (15) is fixedly connected to the inner side of the wall (1). The airtight door body (4) is in contact with the two groups of second sealing plates (15).

7. The sealing device for an airtight door according to claim 2, characterized in that: The connecting pipe (17) is tubular in shape, passes through the airtight door body (4) and is fixedly connected to the air vent pipe (18), and the sealing ring (19) is annular in shape, and is fixedly connected to the airtight door body (4).