Anti-dismantle tee operated without switching off air source

Abstract

The invention discloses an anti-dismantle tee operated without switching off an air source. The anti-dismantle tee comprises a first channel (1), a second channel and a third channel which are communicated with one another. A plug (2) is arranged in the first channel (1). A sealing piece (3) is arranged at an inner opening of the first channel (1). The anti-dismantle tee is characterized in that the sealing piece (3) comprises a sealing ring (3.1) made of elastic materials and a connecting piece (3.2) used for being connected with an opener; the sealing ring (3.1) is installed in the inner opening of the first channel (1) in an axially-limited mode, and at least one radial annular groove (3.1.1) is formed in the outer side wall of the sealing ring (3.1); the connecting piece (3.2) is connected with the middle of the sealing ring (3.1). According to the anti-dismantle tee, the aperture of the first channel with the sealing piece is increased to be greater than that of a ball valve element channel connected with the first channel, so that flow of the first channel is increased.

Description

technical field [0001] The invention relates to the field of tees, in particular to an air-operated tamper-resistant tee. Background technique [0002] Tees are more common in gas and heating lamp pipeline connections. The tee in the prior art includes a body, and the body is provided with a first channel, a second channel and a third channel. The first channel, the second channel and the third channel communicate with each other. Tees can be divided into one-piece tees and two-piece tees according to different usage conditions. A one-piece tee means that one end of the air inlet and the other end of the air outlet, that is, one of the channels of the tee is blocked by a plug. The two-piece tee means that one end enters the air and the other two ends air out, that is, the three channels of the tee are all connected. When the general tee is converted from a one-piece tee to a two-piece tee, it is necessary to cut off the air source. In the case of no ventilation, remove t...

AI Technical Summary

Problems solved by technology

But the anti-dismantle tee with gas operation has the following defects: the anti-dismantle tee with gas operation is realized by setting a sealing plug at the inner port of the first passage. In the process of switching from a one-piece tee to a two-piece tee, the sealing plug needs to be taken out from the spool channel of the ball valve, which makes the diameter of the sealing plug must not be larger than that of the ball valve spool channel. Aperture

This structure also makes the aperture of the inner port of the first passage must not be larger than the aperture of the ball valve spool passage, which limits the aperture of the first passage. The smaller the aperture of the first passage, the smaller the flow rate, and the flow through the first passage The pressure generated by the fluid is small. When the tee with this structure is used in building construction, the fluid pressure is likely to be insufficient on high floors, which affects the use of users.

Images