Plugging device for leakage point detection of sewage transmission pipe

Abstract

The invention discloses a plugging device for leakage point detection of a sewage transmission pipe. The plugging device seals the end of the sewage transmission pipe through cooperation of a plurality of clamping arms and a fixing ring, no foreign matter cleaning is required, and the plugging efficiency of the end of the sewage pipe can be effectively improved. The plugging device is characterized in that a thread sleeve is disposed at the center of a cover plate, the cover plate is divided into two parts by the middle, and the diameter of the part close to an opening is larger than that of the other part; the fixing ring is disposed in the cover plate, an inner clamping groove is formed in an outer ring of the fixing ring, a guide ring is placed on the inner wall of the part with the larger diameter of the cover plate, and the guide ring is put in the inner clamping groove; an annular groove is formed in the end face of the end, away from the cover plate, of the fixing ring; a limiting ring is put on the inner wall of the fixing ring and corresponds to the annular groove, a sealing rubber strip is arranged in the annular groove, and the diameter of the annular groove gradually decreases from outside to inside; and one end of a hollow pipe is placed in the thread sleeve and in threaded connection with the thread sleeve, and the other end of the hollow pipe penetrates out of the fixing ring.

Description

technical field [0001] The invention relates to a leak detection and sealing device of a sewage transmission pipe, which relates to a device for sealing the sewage transmission pipe when detecting the leakage of the sewage transmission pipe in chemical production, and belongs to the field of chemical equipment. In particular, it relates to a device for sealing the end of a sewage transmission pipe through the cooperation of a plurality of clamping arms and a fixed ring. Background technique [0002] At present, in chemical production, the sewage pipe is connected to the sewage treatment tank for treatment, and then the treated waste liquid is discharged. When the sewage is transported to the sewage treatment tank, the pipe body is often used for transmission. It is welded, so during use, leakage often occurs, causing pollution to leak out and affecting the environment. Therefore, it is necessary to check the leaks of the sewage pipes. During the inspection, larger leaks can ...

AI Technical Summary

Problems solved by technology

[0002] At present, in chemical production, the sewage pipe is connected to the sewage treatment tank for treatment, and then the treated waste liquid is discharged. When the sewage is transported to the sewage treatment tank, the pipe body is often used for transmission. It is welded, so during use, leakage often occurs, causing pollution to leak out and affecting the environment. Therefore, it is necessary to check the leaks of the sewage pipes. During the inspection, larger leaks can be seen with the naked eye However, if it is small or subtle, it is necessary to block the pipe body, inject gas or liquid suddenly, and find the leak point by observing the penetration of the outer wall. Accumulation of foreign matter, simple sealing will cause leakage, which will affect the search for leaks. The existing foreign matter will be cleaned first and then sealed, which is time-consuming, laborious and inefficient. At the same time, the existing sealing point is mainly carried out by clamping the outer wall. Fixed, the structure takes up a lot of space, is not compact, and is inconvenient to use and carry, and the plugging structure is reserved for gas injection channels, which affects leak point detection

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