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Improved structure of the sealing device to avoid air leakage from the detection port

A sealing device and detection port technology, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of air leakage and poor sealing performance of the detection port, and achieve the effect of ensuring the sealing effect, improving work efficiency and saving costs.

Active Publication Date: 2017-07-11
CHENGDU OLYMVAX BIOPHARM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an improved structure of a sealing device that avoids air leakage at the detection port, so as to overcome the problem that the sealing structure of the existing detection port has poor sealing performance and easily causes air leakage at the detection port during the sealing process

Method used

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  • Improved structure of the sealing device to avoid air leakage from the detection port

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Such as figure 1 , figure 2 As shown, the improved structure of the sealing device to avoid air leakage at the detection port includes the detection port 2 and the detection cover 4 on the ventilation device 8. Groove Ⅱ41 that cooperates with the sealing ring 3, the detection port 2 is covered with a fixed cylinder 1, the height of the fixed cylinder 1 is higher than the detection port 2, the height difference is set to 10mm ~ 15mm, between the inner wall of the fixed cylinder 1 and the outer wall of the detection port 2 An annular gap is formed, and the width of the annular gap is set at 5 mm to 10 mm. The top of the fixed cylinder 1 is provided with an external thread, and the fixed cylinder 1 is equipped with a fixed cover 6. The inner wall of the fixed cover 6 is provided with an internal thread that matches the external thread. , The fixed cover 6 is provided with a spring 5 inside, and the natural length of the spring 5 is greater than the distance between the f...

Embodiment 2

[0022] This embodiment is on the basis of embodiment 1, as figure 1 , figure 2 As shown, the fixed cover 6 is arranged on the fixed cylinder 1 through the connecting piece 7, and the connecting piece is a plastic sheet.

[0023] The setting of the connecting piece 7 is convenient for opening and closing of the fixed cover 6 on the fixed cylinder 1, which makes the operation more convenient and improves the work efficiency.

Embodiment 3

[0025] This embodiment is on the basis of embodiment 1, as figure 1 , figure 2 As shown, the fixed cover 6 is arranged on the fixed cylinder 1 through the connecting piece 7, and the connecting piece is an aluminum sheet.

[0026] The setting of the connecting piece 7 facilitates the opening and closing of the fixed cover 6 on the fixed cylinder 1, which makes the operation more convenient and improves the work efficiency. The aluminum sheet has certain elasticity and can satisfy the opening and closing of the fixed cover 6.

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Abstract

The invention relates to an improved structure of a sealing device for avoiding air leakage at a detection port, which includes a detection port and a detection cover. A fixed cylinder is provided, the height of the fixed cylinder is higher than that of the detection port, the fixed cylinder is matched with a fixed cover, and a spring is arranged inside the fixed cover. In the present invention, a fixed cylinder is provided outside the detection port, and the fixed cylinder is equipped with a fixed cover with a spring inside. The fixed cover is slowly tightened on the outer wall of the fixed cylinder, and at the same time, the spring inside it exerts force on the detection cover, so that the sealing ring is Extrusion realizes the sealing between the detection port and the detection cover. In this way, the problem that the sealing structure of the existing detection port has poor sealing performance and easily causes air leakage from the detection port during the sealing process is overcome.

Description

technical field [0001] The invention relates to the field of a sealing device for a detection port of a ventilation device, in particular to an improved structure of the sealing device for avoiding air leakage at the detection port. Background technique [0002] In the biopharmaceutical industry, in the process of R&D, preparation and production of drugs, many process sections, such as weighing of drugs, configuration of solutions, transmission of culture bottles, etc., require the use of fume hoods. The setting of fume hoods is, on the one hand, Provide a clean working environment. On the other hand, there is an air supply setting to take the volatile gas produced by some volatile substances out of the fume hood, keep the environment in the fume hood clean, and prevent some volatile substances from being brought into the work. Therefore, the cleanliness of the ventilation equipment must be ensured to prevent the equipment from contaminating the ventilation, contaminating th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/06
CPCF16J15/06
Inventor 李建霖苏淑张强
Owner CHENGDU OLYMVAX BIOPHARM
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