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Reverse stop three-way valve

A three-way valve and backstop technology, which is applied to multi-way valves, valve details, control valves, etc., can solve the problems that the linkage between the inlet valve and the outlet valve cannot be realized, and achieve the effect of easy installation and use

Active Publication Date: 2018-12-07
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a three-way non-return valve to solve the problem that the existing three-way non-return circuit system cannot realize the linkage between the inlet valve and the outlet valve on the one hand, and on the other hand, it can be opened by "pressurization". One-way valve, leading liquid circuit, not suitable for problems in systems that require no pressure at the outlet

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0038] A specific embodiment of the present invention discloses a check three-way valve, such as figure 1 and figure 2 As shown, it includes valve body 1, inlet pipe joint 2, inlet sealing sleeve 4, inlet ball 5, inlet ball pressing assembly 6, outlet pipe joint 3, outlet sealing sleeve 7, outlet ball pressing assembly 8, outlet ball 9 and Guide rod 10.

[0039] The guide rod is placed in the valve body to form a channel for liquid to flow through. One end of the guide rod is in contact with the inlet sphere, and the other end is in contact with the outlet sphere.

[0040] Under the action of the inlet sphere pressing component or liquid pressure, the inlet sphere and the inlet sealing sleeve are sealed or separated; under the action of the outlet sphere pressing component or the guide rod, the outlet sphere and the outlet sealing sleeve are sealed or separated. separate.

[0041] Compared with the prior art, the beneficial effects of the check three-way valve provided by ...

Embodiment 2

[0046] In this embodiment, the inlet pipe joint 2 and the outlet pipe joint 3 are respectively positioned through the seam and the valve body, as image 3 and Figure 4 As shown, the end of the valve body 1 connected to the inlet pipe joint is a spigot boss with a first groove 11. The first groove 11 is used to accommodate the inlet ball pressing assembly. The interior of the valve body 1 includes a The first stepped through hole 12, the valve body is also provided with a first liquid outlet A perpendicular to the first stepped through hole.

[0047] One end of the inlet pipe joint 3 is a liquid inlet P, and its interior is a second step through hole 13 with a transition slope, and the other end is assembled and connected with the end of the valve body 1 with a stopper boss; Figure 5 As shown, the inlet sealing sleeve 4 is placed on the large hole circular surface and the transition slope of the second step through hole 13, the valve body 1 and the inlet pipe joint 2 are pos...

Embodiment 3

[0057] Considering that the transported liquid is sometimes a conductive liquid, the non-return three-way valve is required to have an insulating effect. Therefore, the material of the inlet sealing sleeve and the outlet sealing sleeve of this embodiment is selected as an insulating material. Exemplarily, the selected insulating material may be rubber.

[0058] In order to further improve the insulation performance of the three-way check valve, the materials of the inlet sphere, outlet sphere, inlet pipe joint, outlet pipe joint, guide rod and valve body of this embodiment are also selected as insulating materials. Exemplarily, the selected insulating material may be plastic, such as polyvinyl chloride.

[0059] It should be noted that the inlet and outlet spheres can be solid plastic spheres.

[0060] This embodiment adopts the sealing form of the combination of the insulating plastic ball and the insulating sealing sleeve, and has the functions of backstopping the conductiv...

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Abstract

The invention relates to a reverse stop three-way valve, and belongs to the technical field of fluid conveying. The reverse stop three-way valve solves the problems that in the prior art, linkage between an inlet valve and an outlet valve cannot be achieved, pressure shutoff is used for ejecting a one-way valve open, and the valve is not suitable for a system with the requirement that an outlet has no pressure. The reverse stop three-way valve comprises a valve body, an inlet pipe joint, an inlet seal sleeve, an inlet ball body, an inlet ball body pressing assembly, an outlet pipe joint, an outlet seal sleeve, an outlet ball body, an outlet ball body pressing assembly and a guide rod, the guide rod is placed in the valve body, a channel allowing fluid to flow is formed between the guide rod and the valve body, one end of the guide rod makes contact with the inlet ball body, the other end of the guide rod makes contact with the outlet ball body, under the effect of the inlet ball body pressing assembly or liquid pressure, the inlet ball body and the inlet seal sleeve are sealed or separated, and under the effect of the outlet ball body pressing assembly or guide rod, the outlet ballbody and the outlet seal sleeve are sealed or separated. The reverse stop three-way valve can be widely applied to liquid conveying of the system with the requirement that the outlet has no pressure.

Description

technical field [0001] The invention relates to the technical field of fluid delivery, in particular to a check three-way valve. Background technique [0002] One-way valves are commonly used in fluid delivery systems to adjust the direction of liquid flow and prevent reverse flow of liquid flow. [0003] Existing check valves are generally only used in single-line circuit systems, and in three-way circuit insulation check systems, check valves (check valves) are often installed in each branch. [0004] When using the three-way non-return loop system composed of one-way valves to transport liquid, because the one-way valves are relatively independent, the linkage between the inlet valve and the outlet valve cannot be realized, and the one-way valves can only be opened by the pressure of the liquid. That is to use "pressurization" to open the one-way valve and lead the liquid circuit. This kind of insulating non-return three-way circuit is not suitable for systems that requi...

Claims

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Application Information

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IPC IPC(8): F16K15/04F16K11/10F16K25/00F16K27/02
CPCF16K11/105F16K15/042F16K15/044F16K25/005F16K27/0209F16K27/0245F16K27/0263
Inventor 贾正伟李鑫杜晓东王道臣
Owner BEIJING MECHANICAL EQUIP INST