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Three-way coaxial shaft moving valve

A three-way coaxial, shaft-moving technology, used in multi-way valves, valve details, valve devices, etc., can solve the problems of medium leakage, affecting equipment, poor sealing, etc., to reduce the risk of leakage, reduce parts processing, Impact reduction effect

Pending Publication Date: 2019-06-21
苏州跃翔智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As various industries have higher and higher requirements for high and low pressure, vacuum, temperature, impurities and life of fluids, conventional ball valves and butterfly valves cannot meet the fluid requirements, and are prone to poor sealing and medium leakage, which will affect equipment
[0004] At present, similar products on the market have the following defects. First, the fluid has a large impact on the left end of the piston rod and the vibration is severe, resulting in large wear and tear of the seal and easy leakage. lead to material waste; then, normally open and normally closed need to be designed independently, and it is impossible to replace a single part to complete multiple functions, resulting in material waste; finally, low pressure and high pressure need to be designed independently, and it is impossible to change the size of some parts to achieve durability Higher pressure, leading to waste of material, which makes the product range very limited

Method used

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  • Three-way coaxial shaft moving valve
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  • Three-way coaxial shaft moving valve

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0053] C port cover assembly ( image 3 ), the inner wall of the C port end cover 2 adopts the three-jaw three-way method. After slotting, the first stopper 5 is snapped into the groove, and the first sealing gasket 4 is pressed to prevent the first sealing gasket 4 from falling off. The control gas passes through the electromagnetic The valve 28 enters the cylinder body 8, pushes the piston 7 to slide to the right, and the piston 7 drives the piston rod 6 to move. When the fluid flows in the direction of the C port, the fluid flow rate has a greater impact on the left end of the piston rod 6. The C port end cover assembly ( image 3 ) can shorten the length of the piston rod 6, so that the left end of the piston rod 6 can be fully retracted within the second stopper 11, which greatly reduces the impact of the fluid flow on the piston rod 6, prevents the piston rod 6 from vibrating, and reduces the The wear of the sealing ring 19 due to the eccentric movement of the piston ro...

specific Embodiment 2

[0056] The first modification method: change the installation method of some parts, only combine the piston rod 6, piston 7, piston sealing ring 22, spring 23 and magnetic ring 26 with double-edge structure, and then rotate 180 degrees to complete a new structure ( Figure 4 ),Will( Figure 4 )replace( figure 1 ) the original piston rod 6, piston 7, piston sealing ring 22, spring 23 and magnetic ring 26, and then the electromagnetic valve 28 is rotated 180 degrees to install, and the obtained new structure is three normally open coaxial axial valves ( Figure 7 ), easy transformation, more complete product functions, multiple uses of parts, greatly reducing the waste of raw materials.

[0057] The second modification method: adding or subtracting some parts, changing a single part, only subtracting the C-port end cover assembly ( image 3 ), that is, the C port end cover 2, the sealing seat 3, the first sealing gasket 4 and the first stopper 5, and the appearance of the pist...

specific Embodiment 3

[0060] Changing the size of a small part can improve the pressure resistance to the fluid, and only expand the size of the piston 7, the cylinder body 8, the first bush 9 and the connecting plate 12, thereby increasing the piston 7, the cylinder body 8, the first bush 9 and the The internal surface area of ​​the connecting plate 12 is used to increase its pressure resistance function, and the resulting new structure is a high-pressure coaxial axial valve ( Figure 10 ), the brand-new coaxial axial valve has a reliable life under high-pressure working conditions and adapts to more complex environments; according to the above-mentioned parts change, as described in the specific embodiment 2, "the third Two kinds of modification method" connection can get two normally open high-pressure coaxial axial valves, such as connecting according to the "second modification method" described in the specific embodiment 2 can obtain two normally closed high pressure coaxial shaft valves Actu...

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Abstract

The invention discloses a three-way coaxial shaft moving valve. The three-way coaxial shaft moving valve comprises a left end cover, a port-C end cover, a cylinder block, a connecting plate, a right end cover, a supporting seat and a bracket, an air hole is formed in the middle of the cylinder block, an inner cavity of the cylinder block is slidably connected with a piston in a sealed mode, a piston rod is installed in the piston, one side of the piston is successively connected with a spring, a first bushing, a second bushing, a first blocking piece, a second blocking piece, the left end cover, the connecting plate and the bracket, and a leakage detection port is formed in the middle of the first bushing. Under the condition that the parts of the piston rod, a supporting ring, the blocking pieces, the supporting seat, a left blocking piece, the left end cover and the right end cover are unchanged, thrust of the piston can be increased by only increasing the diameter of the inner wallof an air cylinder, expanding the outer diameter of the piston, and increasing the contact surface between air and the piston, thus the piston rod has the greater thrust, cutting edges in the left endand the right end of the piston rod are more closely matched with a left gasket and a gasket correspondingly, fluid control with the higher pressure is achieved, and therefore, the three-way coaxialshaft moving valve is suitable for popularization.

Description

technical field [0001] The invention relates to a three-way coaxial axial valve, specifically a switch valve, belonging to the technical field of valves. Background technique [0002] The coaxial axial valve is a kind of on-off valve in fluid control engineering. It is widely used. It is installed coaxially with the fluid and the pipeline to reduce resistance and quickly switch on and off. [0003] As various industries have higher and higher requirements for high and low pressure, vacuum, temperature, impurities and life of fluids, conventional ball valves and butterfly valves cannot meet the fluid requirements, and are prone to poor sealing and medium leakage, which will affect the equipment. [0004] At present, similar products on the market have the following defects. First, the fluid has a large impact on the left end of the piston rod and the vibration is severe, resulting in large wear and tear of the seal and easy leakage. lead to material waste; then, normally ope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/065F16K31/122
Inventor 张翔
Owner 苏州跃翔智能科技有限公司