A poppet valve linkage driving device

Abstract

The object of the present invention is to provide a poppet valve linkage driving device, including a stepping motor, a left end plate, a right end plate, and a rotating drive member, a fixed shaft is arranged between the left end plate and the right end plate, and the fixed shaft is passed through a bolt The left end plate and the right end plate are fixedly connected together and the positions of the left end plate and the right end plate are relatively fixed, the rotary drive member is located between the left end plate and the right end plate, and has a central axis at the axis of the rotary drive member; the present invention The drive device can reduce the electromagnetic drive parts of multiple poppet valves as much as possible, reduce the space occupied by the control system, realize stable synchronous control of multiple poppet valves, reduce the failure rate of the control system and increase the linkage stability of the control system performance.

Description

technical field [0001] The invention belongs to the technical field of valves, in particular to a poppet valve linkage driving device used for controlling the flow direction of a medium when a plurality of poppet valves reversing. Background technique [0002] In the field of valves, it is often necessary to control the parallel actions of multiple valves synchronously in many occasions. For example, the switching between cooling and heating modes of air conditioners mainly depends on the four-way poppet valve, and in large systems, multiple four-way valves are often used in parallel combination. ;In the use of bridge reinforcement or heavy equipment, it is generally necessary for multiple hydraulic oil circuits to synchronously control multiple jacks for multi-point synchronous lifting or lowering. At this time, multiple three-position four-way lift valves are required to act synchronously; The platform requires multiple control rods to move synchronously to adjust the leve...

AI Technical Summary

Problems solved by technology

[0003] In the case where multiple electromagnetic control systems or multiple control valves are required for combined control, due to the complex flow path and the large number of control parts, the control system is prone to failure, and the complexity of the flow path makes it difficult to determine the fault point and inconvenient to maintain. The existence of multiple electromagnetic control systems and multiple small control valves further increases the space occupation, so the multi-way linkage control system of valves has gradually begun to develop. For example, the patent document CN102003570A discloses a control system for a multi-way three-position four-way poppet valve. The device uses the operating handle to synchronously control the rotation of multiple gears to simultaneously control the action of multiple three-position four-way valves

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