Airtight door airtightness test tool

Abstract

The utility model discloses an airtight door air tightness test tool, which comprises a support frame, a sealing window, a sealing door and a limit sealing mechanism, and is characterized in that the support frame is a rectangular frame, the inner wall of the support frame is provided with a groove, the sealing door is hinged to one end of the support frame, and the sealing window is fixedly connected to the other end of the support frame; the limiting sealing mechanism is arranged in the middle of the interior of the supporting frame and used for sealing and limiting the airtight door. The utility model belongs to the technical field of air-tight door testing, and particularly relates to an air-tight door air-tight testing tool which aims at air-tight detection of an air-tight door, improves the sealing effect of the tool and the air-tight door, assists positioning of the air-tight door, and improves the observation effect of detection pressure and leakage points.

Description

Technical Field

[0001] This utility model belongs to the field of airtight door testing technology, and in particular relates to an airtight door airtightness testing fixture. Background Technology

[0002] Airtight doors are generally used in rooms with high airtightness requirements in facilities such as high-level biosafety laboratories, nuclear power industry, and ships to solve the problem of airtight isolation between different areas within the enclosure structure.

[0003] Existing airtight door airtightness testing fixtures locate leaks using soapy water, perform horizontal testing using an adjustable positioning device, and achieve a seal between the fixture and the airtight door solely through a sealing gasket. This results in a generally poor sealing effect on the airtight door and introduces a certain degree of error into the pressure testing of the airtight door. Utility Model Content

[0004] The technical problem to be solved by this utility model is to improve the sealing effect of the tooling and the airtight door, assist in the positioning of the airtight door, and improve the detection pressure and the observation effect of the leakage point.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an airtightness testing fixture for an airtight door, comprising a support frame, a sealing window, a sealing door, and a limiting sealing mechanism. The support frame is a rectangular frame with a groove on its inner wall. The sealing door is hinged to one end of the support frame, the sealing window is fixedly connected to the other end of the support frame, and the limiting sealing mechanism is located in the middle of the support frame for sealing and limiting the airtight door.

[0006] Furthermore, the limiting and sealing mechanism includes a limiting frame, a sealing airbag, and an air pump. The limiting frame is fixedly connected to the inner wall of the support frame and is arranged adjacent to the groove. The sealing airbag is fixedly connected to the groove. The air pump is installed on the bottom wall of the support frame and its output end is connected to the interior of the sealing airbag.

[0007] Furthermore, a detection cavity is formed between the limiting frame and the sealing window, and a positioning cavity is formed between the limiting frame and the sealing door.

[0008] Furthermore, the upper part of the support frame has a through hole, which is connected to the detection cavity.

[0009] Furthermore, a water pump is installed at the bottom of the support frame, and a water spray pipe is connected through the bottom of the support frame. The water outlet of the water pump is connected to the water spray pipe, and the water spray pipe is connected to the detection chamber. A rubber valve is provided inside the water spray pipe.

[0010] Furthermore, an air pump two is installed on the side of the sealing door away from the support frame, and the air outlet of the air pump two extends through the sealing door into the positioning cavity.

[0011] Furthermore, a support plate is fixedly connected to the bottom of the support frame, and the support plates are symmetrically distributed, with a base plate fixedly connected between the symmetrical support plates.

[0012] The beneficial effects of this utility model after adopting the above structure are as follows: For the airtightness test of the airtight door, the two ends of the support frame are sealed by the sealing window and the sealing door, forming a test space inside the support frame. The airtight door is limited and positioned in the middle of the support frame by the limiting sealing mechanism. The limiting frame blocks the end face of the airtight door. With the expansion of the sealing airbag, the corners of the airtight door are sealed, which helps to position the airtight door. Test water is introduced into the test chamber to fill the test chamber, so that the water acts on one end of the airtight door to perform watertightness test. Pressurized gas is introduced into the positioning chamber through the air pump to realize the airtightness test of the airtight door. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] Figure 1 This is a schematic diagram of the overall structure of an airtight door airtightness testing fixture proposed in this utility model;

[0015] Figure 2 This is a top view of the internal structure of an airtight door airtightness testing fixture proposed in this utility model;

[0016] Figure 3 This is a half-sectional view of an airtight door airtightness testing fixture proposed in this utility model;

[0017] Figure 4 for Figure 3 Enlarged view of part A.

[0018] In the attached diagram: 1. Support frame, 2. Sealing window, 3. Sealing door, 4. Limiting sealing mechanism, 5. Groove, 6. Limiting frame, 7. Sealing airbag, 8. Air pump one, 9. Detection chamber, 10. Positioning chamber, 11. Through hole, 12. Water pump, 13. Water spray pipe, 14. Rubber valve, 15. Air pump two, 16. Support plate, 17. Base plate. Detailed Implementation

[0019] like Figure 1-4As shown, an airtight door airtightness testing fixture includes a support frame 1, a sealing window 2, a sealing door 3, and a limiting sealing mechanism 4. The support frame 1 is a rectangular frame with a groove 5 on its inner wall. The sealing door 3 is hinged to one end of the support frame 1, and the sealing window 2 is fixedly connected to the other end of the support frame 1. The limiting sealing mechanism 4 is located in the middle of the support frame 1 and is used for sealing and limiting the airtight door. The sealing window 2 and the sealing door 3 seal both ends of the support frame 1 to form a testing space. The limiting sealing mechanism 4 is used to position and seal the airtight door within the support frame 1.

[0020] like Figure 1-4 As shown, in order to assist in the positioning of the airtight door and improve the detection effect of the airtight door leakage point, the limiting and sealing mechanism 4 includes a limiting frame 6, a sealing airbag 7, and an air pump 8. The limiting frame 6 is fixedly connected to the inner wall of the support frame 1, and the limiting frame 6 and the groove 5 are arranged adjacent to each other. The sealing airbag 7 is fixedly connected to the groove 5. The air pump 8 is installed on the bottom wall of the support frame 1, and the output end of the air pump 8 is connected to the inside of the sealing airbag 7. A detection cavity 9 is formed between the limiting frame 6 and the sealing window 2, and a positioning cavity 10 is formed between the limiting frame 6 and the sealing door 3. One end of the airtight door is in contact with the end face of the limiting frame 6 in the positioning cavity 10. Gas is injected into the sealing airbag 7 by the air pump 8, so that the sealing airbag 7 is in contact with the outside of the airtight door, thereby realizing the positioning and sealing of the airtight door.

[0021] A water pump 12 is installed at the bottom of the support frame 1, and a water spray pipe 13 is connected through the bottom of the support frame 1. The water outlet of the water pump 12 is connected to the water spray pipe 13, and the water spray pipe 13 is connected to the detection chamber 9. A rubber valve 14 is provided inside the water spray pipe 13. A through hole 11 is opened at the top of the support frame 1, and the through hole 11 is connected to the detection chamber 9. An air pump 2 15 is installed on the side of the sealing door away from the support frame 1. The air outlet of the air pump 2 15 extends through the sealing door 3 into the positioning chamber 10. After the airtight door is positioned, the sealing door 3 is closed, and water is injected into the detection chamber 9 through the water pump 12. The air in the detection chamber 9 is discharged through the through hole 11. The water acts on one end of the airtight door to perform a watertightness test on the airtight door. At the same time, the air pump 2 15 is started to draw external gas into the positioning chamber 10 to increase the pressure at one end of the positioning chamber 10. The air bubbles in the water in the detection chamber 9 are observed to perform an airtightness test on the airtight door.

[0022] Among them, the bottom of the support frame 1 is fixedly connected to the support plate 16, the support plates 16 are symmetrically distributed, and the base plate 17 is fixedly connected between the symmetrical support plates 16. The symmetrical support plates 16 increase the bottom height of the support frame 1, providing installation space for the air pump 8 and the water pump 12, and the base plate 17 increases the stability of the support frame 1.

[0023] In actual use, the operator opens the sealing door 3 and vertically places the airtight door into the positioning cavity 10. One end of the airtight door is in contact with the end face of the limiting frame 6 in the positioning cavity 10. Gas is injected into the sealing airbag 7 by the air pump 8, so that the sealing airbag 7 is in contact with the outside of the airtight door, thereby achieving the positioning and sealing of the airtight door.

[0024] During testing, the sealing door 3 is closed, and water is injected into the testing chamber 9 through the water pump 12. The air in the testing chamber 9 is discharged through the through hole 11. The water acts on one end of the airtight door to test its water tightness. At the same time, the air pump 15 is started to draw external gas into the positioning chamber 10 to increase the pressure at one end of the positioning chamber 10. The air bubbles in the water in the testing chamber 9 are observed to test the air tightness of the airtight door.

[0025] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A fixture for testing the airtightness of an airtight door, characterized in that: It includes a support frame, a sealing window, a sealing door, and a limiting sealing mechanism. The support frame is a rectangular frame with a groove on its inner wall. The sealing door is hinged to one end of the support frame, and the sealing window is fixedly connected to the other end of the support frame. The limiting sealing mechanism is located in the middle of the support frame and is used to limit the sealing of the airtight door.

2. The airtightness testing fixture for an airtight door according to claim 1, characterized in that: The limiting and sealing mechanism includes a limiting frame, a sealing airbag, and an air pump. The limiting frame is fixedly connected to the inner wall of the support frame and is arranged adjacent to the groove. The sealing airbag is fixedly connected to the groove. The air pump is installed on the bottom wall of the support frame and its output end is connected to the interior of the sealing airbag.

3. The airtightness testing fixture for an airtight door according to claim 2, characterized in that: A detection cavity is formed between the limiting frame and the sealing window, and a positioning cavity is formed between the limiting frame and the sealing door.

4. The airtightness testing fixture for an airtight door according to claim 3, characterized in that: The upper part of the support frame has a through hole, which is connected to the detection cavity.

5. The airtightness testing fixture for an airtight door according to claim 1, characterized in that: A water pump is installed at the bottom of the support frame, and a water spray pipe is connected through the bottom of the support frame. The water outlet of the water pump is connected to the water spray pipe, and the water spray pipe is connected to the detection chamber. A rubber valve is provided inside the water spray pipe.

6. The airtightness testing fixture for an airtight door according to claim 1, characterized in that: An air pump is installed on the side of the sealing door away from the support frame, and the air outlet of the air pump extends through the sealing door into the positioning cavity.

7. The airtightness testing fixture for an airtight door according to claim 1, characterized in that: The bottom of the support frame is fixedly connected to a support plate, which is symmetrically distributed and a base plate is fixedly connected between the symmetrical support plates.

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