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Manual flameproof proportional direction valve

A proportional directional valve and explosion-proof technology, which is applied in the field of solenoid valves, can solve the problems that cannot be controlled manually

Inactive Publication Date: 2020-08-28
NINGBO HOYEA MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, this proportional directional valve can only be controlled by an electromagnet, and cannot be controlled manually, so there are certain limitations in the actual use process

Method used

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  • Manual flameproof proportional direction valve

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Embodiment Construction

[0033] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0034] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, a manual flameproof proportional directional valve includes: a transition body 100, an electromagnetic control assembly 200, a manual control assembly, and a valve body 400; it can control the valve body 400 through the electromagnetic control assembly 200 and the manual control assembly, thereby realizing The purpose of manual manipulation and automatic manipulation.

[0035] It is worth noting here that in the existing proportional directional valves, there is generally only an electromagnetic control structure, that is, the valve body 400 can only be controlled by an electromagnet, and lacks a manual control structure, so in this embodiment, there i...

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Abstract

The invention provides a manual flameproof proportional direction valve, and belongs to the technical field of solenoid valves. The manual flameproof proportional direction valve comprises a transition body, an electromagnetic control assembly, a manual control assembly and a valve body. A work cavity is formed in the transition body, a shaft sleeve, an ejector rod and a connecting rod are arranged in the work cavity, the ejector rod penetrates through the shaft sleeve, and the ejector rod and the shaft sleeve are in linkage connection with the connecting rod. The electromagnetic control assembly is connected with the transition body and is in leakage connection with the ejector rod. The manual control assembly is connected with the transition body and is in leakage connection with the shaft sleeve. The valve body is connected with the transition body, the valve body is provided with a valve cavity and a valve element, the valve element is arranged in the valve cavity, and the valve element is in leakage connection with the connecting rod. The manual flameproof proportional direction valve has the advantages that the proportional direction valve can be controlled through an electromagnet, and a manual control effect is further achieved.

Description

technical field [0001] The invention belongs to the technical field of solenoid valves and relates to a manual flameproof proportional directional valve. Background technique [0002] A solenoid valve of the explosion-proof proportional directional valve belongs to electromagnetically controlled industrial equipment and is an automatic basic component used to control fluid. The solenoid valve generally includes a sealed chamber, oil holes opened in different positions of the chamber, a piston arranged in the middle of the chamber and electromagnets arranged on both sides of the piston. [0003] Proportional directional valve can control the direction and flow of liquid flow at the same time according to the polarity and amplitude of the input signal. The flow direction of the liquid flow depends on whether the corresponding proportional electromagnet is excited. Under the condition of constant pressure difference, the flow through the electro-hydraulic proportional directio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/065F16K31/06F16K31/11
CPCF16K11/0655F16K31/061F16K31/0675F16K31/10
Inventor 陈志勇张策翁之旦
Owner NINGBO HOYEA MACHINERY MFG
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