External anti-backflow mechanism for water meter in high-fall installation environment
An installation environment, external connection technology, applied in the direction of valve device, valve casing structure, mechanical equipment, etc., can solve the problems of national resource loss, water backflow, inaccurate water counting, etc., and achieve poor sealing effect and strengthen sealing. Effect
Inactive Publication Date: 2020-12-25
湖南常德牌水表制造有限公司
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- Abstract
- Description
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- Application Information
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Problems solved by technology
In some areas of our country, there are even super high drop terrains. In the high drop installation environment, due to insufficient water pressure supply, water backflow is very easy to occur. The backflow of water will cause the counting reversal of the water meter, resulting in inaccurate water counting. cause loss
Method used
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Embodiment 1
[0051] see Figure 1-Figure 10 As shown, the purpose of this embodiment is to provide an external anti-backflow mechanism for a water meter installed in a high-drop environment, including a valve body 1 and a first backstop device 5 and a second backstop device installed in the inner cavity of the valve body 1 6. The second backstop device 6 includes at least:
[0052] The water blocking part 601, the water blocking part 601 includes a second valve flap 6011, a water stopper 6012 is fixedly connected to the center of the lower surface of the second valve flap 6011, and a guide rod 602 is fixedly connected to the center of the upper surface of the second valve flap 6011 , a slider 6021 is provided on the surrounding side walls of the guide rod 602;
[0053] The fixed part 4 is installed on the top of the connecting pipe 3. The fixed part 4 includes a valve cover 401. A screw hole 4011 is provided at the center of the upper surface of the valve cover 401, and a screw hole 4011 ...
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The invention relates to the technical field of anti-backflow mechanisms for water meters, in particular to an external anti-backflow mechanism for a water meter in a high-fall installation environment. The external anti-backflow mechanism for the water meter in the high-fall installation environment comprises a water blocking piece, wherein the water blocking piece comprises a second valve clack;a water stop plug is fixedly connected to the center of the lower surface of the second valve clack; a guide rod is fixedly connected to the center of the upper surface of the second valve clack; sliding blocks are arranged on the side walls of the periphery of the guide rod; a guide cylinder is fixedly connected to the center of the upper surface of a first sealing plug and is sleeved with a second spring; a guide hole is formed in the center of the lower surface of the guide cylinder; limiting grooves are formed in the periphery of the inner wall of the guide hole; and the guide hole and ascrew hole are concentric holes which are through up and down. Through arranging a first non-return device, a first valve clack is closely fitted to a water inlet pipe, so that water is effectively prevented from flowing back; and through the first valve clack, the problems that water in a flow storage cavity flows back, the pressure on one side of the flow storage cavity is increased, and a waterflow on one side of a water outlet pipe permeates into the flow storage cavity from a gap of a valve seat under the action of the pressure, so that water backflow is caused are solved.
Description
technical field [0001] The invention relates to the technical field of an anti-backflow mechanism for a water meter, in particular to an externally connected anti-backflow mechanism for a water meter in a high drop installation environment. Background technique [0002] A water meter is an instrument for measuring water flow. Most of them measure the cumulative flow of water. With the increase of domestic water pipelines, the length, diameter, and water delivery volume of pipelines are also increasing, and the construction conditions are becoming more and more complicated. In some areas of our country, there are even super high drop terrains. In the high drop installation environment, due to insufficient water pressure supply, water backflow is very easy to occur. The backflow of water will cause the counting reversal of the water meter, resulting in inaccurate water counting. cause loss. [0003] At the same time, in the installation environment with high drop, the caliber...
Claims
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IPC IPC(8): F16K15/06F16K1/44F16K27/02F16K27/08G01F15/18
CPCF16K15/066F16K1/44F16K27/0209F16K27/08G01F15/185
Inventor 刘国庆廖杰伍鹏
Owner 湖南常德牌水表制造有限公司
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