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Flexible closure device

A shut-off device, flexible technology, applied in the field of flexible shut-off devices, can solve the problems of difficult deformation, difficult to achieve zero-leakage sealing of circulation channels, etc., and achieve the effect of zero-leakage sealing

Pending Publication Date: 2020-09-22
WUHAN SHENGYU DRAINING SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the rubber sleeve is completely closed and the circulation channel is cut off, the rubber sleeve part at the extreme position of the rubber sleeve has no deformation space, so it is difficult to deform. Even if a large air pressure is charged into the pressure chamber, it is difficult Difficult to achieve a zero-leakage seal on the flow channel

Method used

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Embodiment Construction

[0029] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0030] An embodiment of the present invention provides a flexible closure device, such as figure 1 , figure 2 , image 3 and Figure 4 , the device includes an outer shell 1, a rubber sleeve 2 and a sealing portion 3, the outer shell 1 is arranged outside the rubber sleeve 2, and the rubber sleeve 2 is built with a water flow channel 20; the inner wall of the outer shell 1 and the rubber sleeve 2 The outer wall forms a pressure...

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Abstract

The invention relates to the technical field of drainage equipment, in particular to a flexible closure device. The flexible closure device is characterized by comprising an outer shell, a rubber sleeve, a sealing part, and an inlet and outlet part, wherein a water flow channel is built inside the rubber sleeve; the outer shell is arranged outside the rubber sleeve; the inner wall of the outer shell and the outer wall of the rubber sleeve form a pressurizing cavity; the inlet and outlet part is connected to the pressurizing cavity; the sealing part is arranged at the extreme position of the rubber sleeve in the closed state, is located in the water flow channel and extends along the inner wall of the rubber sleeve; the sealing part is provided with a filling belt and a filling port connected to the filling belt; and after the filling belt is filled with a medium through the filling port, the sealing part is filled at the extreme position of the rubber sleeve in the closed state. The flexible closure device effectively solves the problem that the rubber sleeve cannot be sealed at the extreme position, and enables the rubber sleeve to achieve zero leakage sealing under relatively small pressure.

Description

technical field [0001] The invention relates to the technical field of drainage equipment, in particular to a flexible intercepting device. Background technique [0002] The flexible shut-off device has an outer shell and a rubber sleeve. A pressurized cavity is formed between the outer shell and the rubber sleeve. The rubber sleeve has a built-in flow channel for water to flow through. By filling the pressurized cavity with pressurized gas, the rubber sleeve The cylinder is relatively deformed, the flow channel becomes smaller until the flow channel is closed, the flexible shut-off device is closed, and after the pressure chamber is deflated, the rubber sleeve recovers its deformation, the flow channel gradually becomes larger until the flow channel is closed, and the flexible shut-off device opens. [0003] When the rubber sleeve is completely closed and the circulation channel is cut off, the rubber sleeve part at the extreme position of the rubber sleeve has no deformati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F1/00E03F3/04E02B7/00E02B7/54
CPCE02B7/005E02B7/54E03F1/00E03F3/04
Inventor 周超
Owner WUHAN SHENGYU DRAINING SYST
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