Liquid return circuit breaker valve
A technology of cut-off valve and valve core, which is used in mining equipment, earth-moving drilling, pillars/supports, etc., can solve problems such as leakage, and achieve the effect of prolonging service life and protecting biasing devices.
Inactive Publication Date: 2011-07-27
陈文才
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Abstract
The invention relates to a liquid return circuit breaker valve which comprises a shell, a valve core, a joint, a bias device, a fixed plate, a waterproof bag and a ventilation device, wherein the fixed plate is fixedly arranged in a through cavity at the tail part of the valve core, and a liquid through hole is molded along the circumferential direction of the fixed plate; the bias device is arranged in the sealed waterproof bag, one end of the bias device leans against the tail part of the valve core, and the other end of the bias device is fixedly arranged on the fixed plate; one end of theventilation device is inserted into the waterproof bag by the fixed plate, and the other end of the ventilation device extends outside the shell and communicated with the atmosphere; the ventilation device is also provided with a branch channel communicated with the tail end of the through cavity; the branch channel is internally provided with a first one-way valve which only allows the atmosphere to flow from the waterproof bag towards the tail end of the through cavity; and a main branch channel of the ventilation device communicated with the atmosphere is internally provided with a second one-way valve which only allows the atmosphere to flow towards the interior of the ventilation device. The liquid return circuit breaker valve is simple in structure, high in flow rate and long in service life.
Application Domain
Props/chocks
Technology Topic
EngineeringAtmosphere +3
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Example Embodiment
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