Non-penetrating type hydraulic valve piston device

A non-penetrating, piston technology, applied in the direction of valve device, valve operation/release device, sliding valve, etc., can solve the problems of casualties, small valve stem diameter, seal leakage, etc., to achieve safe and reliable sealing performance and ensure system safety , the effect of easy installation

Pending Publication Date: 2019-01-04
JIANGSU JINSHI MACHINERY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the existing hydraulic valve piston structure is through-type, and there are four defects in this through-type structure: First, the rubber seal is used between the piston and the valve stem, and the rubber material will age after a long time of use, resulting in seal leakage. There are certain safety hazards; the second is that the valve stem is small in diameter and low in strength, which may easily cause the valve stem to break; the third is that the connection between the piston and the valve stem is easy to loosen, causing the valve switch to not be in place; If detected in time, casualties may occur at the scene

Method used

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  • Non-penetrating type hydraulic valve piston device

Examples

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Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 , which shows a schematic diagram of the overall structure of a flat valve system with a non-penetrating piston in this embodiment, including a flat valve 100 , a piston unit 200 and a valve cover unit 300 . Specifically, the system includes a flat valve 100 , a piston unit 200 arranged at the upper end thereof for driving the flat valve 100 to open or close, and a valve cover unit 300 used for capping the flat valve 100 and arranged at both ends thereof. Further, the flat valve 100 is a sliding valve whose closing part is a parallel gate, and its closing part can be a single gate or a double gate with a stretching mechanism in between, and the pressing force of the gate to the valve seat is It is controlled by the medium pressure acting on the floating gate or floating valve seat. If it is a double gate flat gate valve, the expansion mechanism between the two gates can supplement this pressing force, and the flat gate valve can be divided into two type...

Embodiment 2

[0037] refer to Figure 2~4 In this embodiment, in order to achieve a more stable connection between the piston and the valve stem, so that it is not easy to loosen in the up and down direction, the difference from the first embodiment is that the piston body 202 also includes upper and lower ends. The upper installation cavity 202a and the lower installation cavity 202b are provided through, and the upper fixing part 202c and the lower fixing part 202d respectively match the contours of the two cavities. Specifically, the system includes a flat valve 100 , a piston unit 200 arranged at the upper end thereof for driving the flat valve 100 to open or close, and a valve cover unit 300 used for capping the flat valve 100 and arranged at both ends thereof. Furthermore, the plate valve 100 is a sliding valve whose closing part is a parallel gate, and its closing part can be a single gate or a double gate with a stretching mechanism in between, and the pressing force of the gate aga...

Embodiment 3

[0043] refer to Figure 5-6For illustration, this embodiment adopts a hydraulic drive method, so this embodiment is different from the above embodiments in that a pressure unit 400 connected to the piston is also provided. The pressure unit 400 connects with the upper inlet pressure port 205 through the oil circuit It is connected with the lower inlet pressure port 206 to push the piston body 202 to move up and down. The oil line route can be, for example, a pressure-resistant rubber hose line with a layer of steel wire sandwiched in the diameter, and the length can be selected by the user. Specifically, the system includes a flat valve 100 , a piston unit 200 arranged at the upper end thereof for driving the flat valve 100 to open or close, and a valve cover unit 300 used for capping the flat valve 100 and arranged at both ends thereof. Furthermore, the plate valve 100 is a sliding valve whose closing part is a parallel gate, and its closing part can be a single gate or a dou...

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Abstract

The invention discloses a non-penetrating type hydraulic valve piston device. The non-penetrating type hydraulic valve piston device comprises a flat valve, a piston unit driving the flat valve to open or close and arranged at the upper end of the flat valve, and a valve covering unit used for sealing the flat valve and arranged at two ends of the flat valve. The piston unit further comprises a cavity body with a sliding space, a piston body and a valve rod. The piston body is arranged in the cavity body, and is of an integral solid structure. The upper end of the valve body is connected withthe piston body. The lower end of the valve body is connected with a valve plate arranged in the flat valve. The non-penetrating type hydraulic valve piston device has the beneficial effects that thepiston is arranged to be solid, and therefore a leakage point is avoided, and the sealing performance is safe and reliable; and a sealing groove is not required for the valve rod, the diameter of thevalve rod can be increased correspondingly, and intensity of the valve rod is improved.

Description

technical field [0001] The invention relates to the technical field of valve equipment, in particular to a non-penetrating hydraulic valve piston device. Background technique [0002] The valve is a pipeline accessory used to open and close the pipeline, control the flow direction, adjust and control the parameters (temperature, pressure and flow) of the conveying medium. Among them, the function of the hydraulic control valve, referred to as the hydraulic valve, in the hydraulic system is to adjust the hydraulic pressure by controlling The flow direction, pressure and flow of oil in the system enable the actuator and its driven working mechanism to obtain the required movement direction, thrust and movement speed, etc., and the actuator is a driving device that can provide linear or rotary motion. Utilizing a certain driving energy and working under the action of a certain control signal, the actuator uses liquid, gas, electricity or other energy and converts it into drivin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/02F16K3/314F16K3/30F16K27/04F16K27/08F16K31/122
CPCF16K3/0281F16K3/30F16K3/314F16K27/044F16K27/08F16K31/1223
Inventor 邹勇王小晨黄丽
Owner JIANGSU JINSHI MACHINERY GROUP
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