Dual-line hose burst valve with adjustable action flow

Abstract

The invention provides a double pipeline hose explosion valve with an adjustable action flow rate. A movable valve core group is matched with a spring seat and a flange joint; when the position of the spring seat is changed, the pre-compression amount of a compression spring is also changed, so that the stroke of the movable valve core group is changed, and the setting of the action flow rate of the explosion preventing valve is complete; meanwhile, the movable valve core group is in clearance fit with a valve core body and a limiting rod, so that the problem of oil leakage since the whole valve core is susceptible to being jammed.

Description

technical field [0001] The invention relates to a hydraulic explosion-proof valve, in particular to a double-pipe hose explosion valve with adjustable action flow for heavy-duty hydraulic load-bearing special vehicles. Background technique [0002] Existing dual-pipeline explosion-proof valves are basically composed of a valve body, an end cover with an oil port on both sides of the valve body, an integral valve core, two compression springs, auxiliary seals, and connectors. The processing procedure of the end cover is complicated, the cost is high, and extremely high sealing performance is required. After the existing double-pipeline explosion-proof valve leaves the factory, the position of the spring is relatively fixed, so the hydraulic oil flow rate that drives the valve core to move through the hose port is a fixed value. For hydraulic systems that require different action flow rates, different specifications must be selected according to the flow rate. The dual-pipeli...

AI Technical Summary

Problems solved by technology

The processing procedure of the end cover is complicated, the cost is high, and extremely high sealing performance is required

After the existing double-pipeline explosion-proof valve leaves the factory, the position of the spring is relatively fixed, so the hydraulic oil flow rate that drives the valve core to move through the hose port is a fixed value. For hydraulic systems that require different action flow rates, different specifications must be selected according to the flow rate. The double-pipeline explosion-proof valve, and the constant response flow will not change the spring adjustment speed when the system flow changes, which will cause oil waste and environmental pollution; When the spool is stuck, it will also cause oil leakage and environmental pollution, which is not conducive to safety.

[0003] It can be seen that the above-mentioned existing double-pipeline hose explosion-proof valve obviously has design defects in the application of products with special functional requirements such as heavy-duty hydraulic load-bearing special vehicles, and needs to be improved urgently.

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