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Bidirectional control proportion one-way flow valve

A two-way control and flow valve technology, applied in the direction of control valves, valve details, valve devices, etc., can solve the problems of expensive proportional valves, rising costs, limiting the wide application of proportional one-way flow valves, etc. Less, reduce the difficulty of manufacturing process and the effect of manufacturing cost

Active Publication Date: 2018-02-23
北京中嘉伟业液压件制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high price of proportional valves, the use of two proportional one-way flow valves will inevitably lead to an increase in cost, which limits the wide application of proportional one-way flow valves on some lower-priced mainframes

Method used

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  • Bidirectional control proportion one-way flow valve
  • Bidirectional control proportion one-way flow valve
  • Bidirectional control proportion one-way flow valve

Examples

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Embodiment Construction

[0040] In order to make the technical solutions and advantages of the present invention clearer, the exemplary embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present invention, and are not exhaustive of all the embodiments. And in the case of no conflict, the embodiments and the features in the embodiments of the present invention can be combined with each other.

[0041] The inventor noticed during the invention process that the existing proportional one-way flow valve can only realize one-way proportional flow control, which limits the application range of the proportional one-way flow valve.

[0042] In view of the above shortcomings, the embodiment of the present invention proposes a bidirectional control proportional one-way flow valve, which will be described below.

[0043] figure 1One embodiment of the bi-direc...

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Abstract

The invention provides a bidirectional control proportion one-way flow valve. The bidirectional control proportion one-way flow valve is characterized by comprising a proportion electromagnet, a swivel nut, an armature, a valve bushing, a main valve element, a pilot valve bushing and a pilot valve element. One end of the swivel nut is connected with the proportion electromagnet, the armature is movably arranged in the swivel nut, one end of the valve bushing is fixedly connected to the other end of he swivel nut, the other end of the valve bushing is provided with an oil port A and an oil portB, the main valve element is connected to the interior of the valve bushing and provided with a first damping hole communicating with the oil port B and a second damping hole communicating with the oil port A, the pilot valve bushing is in movable sleeved connection with the interior of the main valve element and is provided with a pilot cavity and a third damping hole, one end of the pilot valveelement is fixedly connected to the other end of the armature, the other end of the pilot valve element penetrates through a control cavity, the pilot cavity and the second damping hole, and a structure with the small middle and two large sides is formed at the position, corresponding to the second damping hole, of the other end of the pilot valve element. The proportion one-way flow valve is simple in structure, low in cost and capable of achieving bidirectional control.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a bidirectional control proportional one-way flow valve. Background technique [0002] In recent years, proportional one-way flow valves have been used more and more in lifting equipment such as truck-mounted cranes, aerial work vehicles, tractor rotary plows, and electric forklifts. When the equipment stops, the proportional one-way flow valve plays the role of maintaining pressure to prevent the hydraulic cylinder from sliding down; when the equipment needs to descend, the proportional one-way flow valve controls the size of the opening according to the input voltage signal and adjusts the output flow of the hydraulic cylinder , and then control the descending speed of the lifting equipment. The proportional one-way flow valves currently on the market can only achieve one-way proportional flow control, that is to say, if the hydraulic oil can realize proportional flow control w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/06F16K15/18F16K31/06F16K31/40F15B13/02
CPCF15B13/027F16K15/063F16K31/0655F16K31/406F16K15/1826
Inventor 陈艳艳
Owner 北京中嘉伟业液压件制造有限公司
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