Electric valve dynamic sealing structure and its electric valve
A technology of dynamic sealing structure and valves, which is applied in the directions of shaft sealing, lifting valves, valve details, etc., can solve the problems of application limitation and potential pollution, and achieve the effect of reliable dynamic sealing
Active Publication Date: 2018-01-12
嘉兴科奥电磁技术有限公司
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- Description
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Problems solved by technology
Glue-coated seals are generally used for static seals, and are limited in application due to potential contamination
Method used
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Embodiment Construction
[0016] The present invention will be further described below in conjunction with the accompanying drawings.
[0017] figure 2 It shows a schematic cross-sectional structure diagram of a dynamic sealing structure of an electric valve according to an embodiment of the present invention, wherein the valve core assembly is in an open position; image 3 show figure 2 Partial enlarged schematic diagram of ; Figure 4 A schematic cross-sectional structure diagram of a dynamic sealing structure of an electric valve according to an embodiment of the present invention is shown, wherein the valve core assembly is in a closed position. Please refer to Figure 2 to Figure 4 , according to an embodiment of the present invention, the electric valve dynamic sealing structure includes a valve body 1 , a fixed partition part 2 , a valve core assembly and an elastic gasket 4 .
[0018] The valve body 1 has an inlet 11 , an outlet 12 and a valve cavity 10 . The fixed partition part 2 is ar...
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The invention discloses a dynamic sealing structure of an electric valve, which comprises a valve body, a fixed partition part, a valve core assembly and an elastic sealing gasket. The valve body has an inlet, an outlet and a valve chamber; a fixed partition part is arranged in the valve chamber to divide the valve chamber into an electric chamber and a fluid chamber respectively located above and below the fixed partition part; a valve port is arranged in the fluid chamber. The spool assembly is movable between an open position and a closed position, and the spool assembly includes a valve stem. The elastic sealing gasket is arranged in the fluid cavity; the valve rod passes through the central through hole of the fixed partition part and the elastic sealing gasket. The outer peripheral edge and the inner peripheral edge of the elastic gasket are respectively fixed to the inside of the fluid chamber and the valve stem, and when the valve core assembly moves between the open position and the closed position, the upper space and the lower space of the elastic gasket seal each other. The invention also discloses an electric valve comprising the dynamic sealing structure. The invention can realize reliable dynamic sealing between the central through hole of the fixed partition part of the electric valve and the valve stem.
Description
technical field [0001] The invention relates to a dynamic sealing structure of an electric valve and the electric valve thereof. Background technique [0002] Traditional sealing methods include O-ring sealing, sealing strip sealing, gasket sealing, glue sealing and other methods. O-ring seals and sealing strip seals generally design corresponding grooves on a certain surface that needs to be sealed, place O-rings or sealing strips in it, and rely on the elastic deformation of O-rings or sealing strips to ensure sealing. The O-ring sealing method and the sealing strip sealing method are the most common applications, but due to the need to design a specific groove structure, it is difficult for these two sealing methods to be applied to mechanical parts with small space dimensions; in addition, these two This sealing method also has hidden dangers of leakage after the seal is worn under dynamic sealing conditions. figure 1 A schematic diagram showing an existing O-ring seal...
Claims
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IPC IPC(8): F16K41/04F16K1/36F16K1/46F16K1/48
CPCF16K1/36F16K1/46F16K1/482F16K41/04
Inventor 柯建豪郑礼华邢文亮
Owner 嘉兴科奥电磁技术有限公司