A parallel double brace gate valve
A double-stay gate and valve plate technology is applied to valve details, valve devices, sliding valves, etc., which can solve problems such as failure to open and close, gate valves that cannot be closed normally, and jamming, and achieve good stability and reliability. Extend the service life and improve the effect of protection
A double-stay gate and valve plate technology is applied to valve details, valve devices, sliding valves, etc., which can solve problems such as failure to open and close, gate valves that cannot be closed normally, and jamming, and achieve good stability and reliability. Extend the service life and improve the effect of protection
CN113357388BActive Publication Date: 2022-06-21ZHEJIANG GUANZHENG VALVE CO LTD
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[0023] The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0024] combine Figure 1 to Figure 6 As shown, the parallel double support plate gate valve of this embodiment includes a valve body 1 , a valve stem 2 , a wedge pressing block 3 , a first valve plate 4 , a second valve plate 5 and a rotating shaft 6 .
[0025] The valve body 1 is provided with an inlet 11 , an outlet 12 and a control hole 13 , wherein the control hole 13 passes through between the inlet 11 and the outlet 12 .
[0026] The wedge pressing block 3 is located inside the control hole 13 and can reciprocate along the axial direction of the control hole 13 . At the same time, the wedge pressing block 3 is provided with a T-shaped hole 31 connecting the two wedge surfaces and the bottom surface. The rotating shaft 6 is a T-shaped shaft, which is located in the T-shaped hole 31 of the wedge pressing block 3, ...
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The invention belongs to the technical field of pipeline valves, and discloses a gate valve with parallel double braces, which includes a valve body, a valve stem, a wedge pressure block, a first valve plate, a second valve plate and a rotating shaft; the valve body is provided with a control hole, a wedge The pressing block is located in the control hole and is provided with a T-shaped hole. The rotating shaft is a T-shaped shaft located in the T-shaped hole and can rotate relative to the wedge pressing block; the first valve plate is a wedge-shaped plate, and the wedge-shaped surface of the first valve plate is in contact with the wedge The wedge-shaped surfaces of the pressure block are parallel to each other, and the wedge-shaped surface of the first valve plate is provided with a first connecting groove; the second valve plate is a wedge-shaped plate, and the wedge-shaped surface of the second valve plate is parallel to the other wedge-shaped surface of the wedge pressure block. The wedge-shaped surface of the second valve plate is provided with a second connecting groove; the valve rod drives the wedge pressure block to move along the control hole; the wedge pressure block can drive the first valve plate and the second valve plate to move through the rotating shaft, and the wedge pressure block can also move Can move relative to the first valve plate and the second valve plate. The parallel double spreader gate valve of the present invention can be used in different installation modes and has better stability and reliability.
Description
technical field [0001] The invention belongs to the technical field of pipeline valves, and in particular relates to a parallel double support plate gate valve. Background technique [0002] Gate valve is a valve used to fully open or fully close the medium flowing through the pipeline on the transportation pipeline or equipment. It is mainly used in the fields of petroleum, natural gas and chemical industry. In my country, the traditional gate valves currently produced mainly include flat gate valves and wedge gate valves. Among them, the flat gate valve always has two floating valve seats with pre-tightening force and the sealing surface of the valve plate rubbing against each other during the operation process, so the sealing life is low, but the advantage is that the output force of the actuator is small, and the opening and closing operation is stable; The gate valve has the advantages of good sealing performance and long service life, but the disadvantage is that the ...
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Patent Timeline
21 Jun 2022
Publication
CN113357388B
- IPC
- F16K3/14; F16K3/30; F16K27/04; F16K31/60; F16K31/50
- CPC
- F16K3/14; F16K3/30; F16K27/044; F16K31/60; F16K31/50
- Inventors
- δΏδΌε ; ζζ