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A valve opening and closing device

A technology for opening and closing devices and valves, which is applied in the direction of valve devices, valve operation/release devices, valve details, etc. It can solve the problems of poor use effect of valve opening devices, achieve increased thrust, effective speed reduction and torque increase, and structural Reasonable layout effect

Active Publication Date: 2020-12-29
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] One of the purposes of the present application is to provide a valve opening and closing device, which aims to improve the problem of poor use effect of the valve opening device in the prior art

Method used

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  • A valve opening and closing device
  • A valve opening and closing device
  • A valve opening and closing device

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Embodiment

[0040] Please refer to figure 1 , with reference to Figure 2 to Figure 6 , the present application provides a valve opening and closing device 1, which is a valve opening mechanism that increases the valve opening power by changing the transmission ratio.

[0041] Please refer to figure 1 , with reference to figure 2 , the valve opening and closing device 1 mainly includes a hydraulic cylinder case 2, a first piston 5, a support mechanism 17, two speed change mechanisms 6, a second piston 18 and a return spring 19; the hydraulic cylinder case 2 as a whole is closed at one end Cylindrical structure, the first piston 5 and the second piston 18 are both disc-shaped structures, the first piston 5 is movably installed on the two opposite inner walls of the hydraulic cylinder box 2, and its outer wall is connected to the hydraulic cylinder The inner wall of the box body 2; the second piston 18 is movably installed on the two opposite inner walls of the hydraulic cylinder box body...

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Abstract

The invention provides a valve opening and closing device, and belongs to the field of valves. The valve opening and closing device comprises a hydraulic cylinder box body, a first piston is arrangedon the inner side wall of the hydraulic cylinder box body, a speed change mechanism comprises a first transmission assembly, a transmission gear assembly, a speed regulation assembly and a second transmission assembly, one end of the first transmission assembly is connected to the first piston, the other end of the first transmission assembly is connected with the transmission gear assembly, the transmission gear assembly is meshed with the second transmission assembly, a positioning seat is arranged on a supporting mechanism, a middle shaft is arranged on the positioning seat, a driven gear sleeves the middle shaft, and is meshed the first transmission assembly, a crankshaft is in transmission connection with the middle shaft, one end of a connecting rod is connected to the crankshaft, the other end of the connecting rod is connected to a swing arm, the swing arm is connected to the transmission gear assembly, a second piston is arranged on the inner side wall of the hydraulic cylinder box body, the second transmission assembly is in transmission connection with the second piston, and one end of a reset spring is connected to the second piston. According to the structure, the valve is quickly pushed in the front half section of the stroke, the speed is reduced in the latter half section of the stroke, and meanwhile, the thrust is increased to push the valve.

Description

technical field [0001] The present application relates to the field of valves, in particular to a valve opening and closing device. Background technique [0002] At present, the valve industry is booming, and valves of various institutions emerge in endlessly, and there are certain improvements in sealing performance, strength requirements, adjustment functions, action performance and flow performance. Valves are also widely used in machinery, chemical and other fields. . The application of valves in daily life can also be seen everywhere, affecting all aspects of our lives. The rational use of valves is also of great help to save important resources such as water resources and protect the environment. [0003] However, due to the increasing force required for the compression of the return spring in traditional valves, the valve may fail to reach the preset stroke due to insufficient force. Therefore, it is necessary to improve the mechanism to overcome this deficiency. C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/122F16K31/54
CPCF16K31/122F16K31/54
Inventor 胡三宝于腾杰阮剑
Owner WUHAN UNIV OF TECH
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