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Reversing valve

A reversing valve and reversing shaft technology, applied in the field of reversing valves, can solve the problems of easy leakage of the sealing surface, large matching clearance, easy blockage, etc., and achieve the effect of ensuring the sealing performance

Active Publication Date: 2016-09-14
ZHEJIANG AILIPU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the matching gap between the valve core and the valve body hole is small, it is easy to block; if the matching gap is large, a good sealing surface cannot be formed and it is easy to leak
In this way, there are high requirements for the manufacturing accuracy of the valve core and the valve body hole, which increases the difficulty and cost of manufacturing.

Method used

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  • Reversing valve
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Examples

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] Such as image 3 As shown, a reversing valve of the present invention includes a valve body 11, a valve cover 1 and a micromotor 7, the micromotor 7 is arranged on one side of the valve body 11 through the motor bracket 6, and the valve cover 1 and the valve body 11 are connected by screws Fixed fit, a sealing ring 14 is provided between the valve cover 1 and the valve body 11 to prevent liquid from leaking between the valve cover 1 and the valve body 11 .

[0021] Such as Figures 1 to 6 As shown, a first working chamber 2 and a second working chamber 3 are provided between the valve body 11 and the valve cover 1, and a reversing shaft 4 is provided on the valve body 11, and the reversing shaft 4 passes through the first working chamber 2 and the second working chamber. Two working chambers 3; the valve cover 1 is provided with a first oil inlet a and a sec...

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PUM

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Abstract

The invention relates to a reversing valve which comprises a valve body, a valve cover and a micro motor, wherein a first working chamber and a second working chamber are arranged between the valve body and the valve cover; a reversing shaft is arranged on the valve body; the reversing shaft penetrates the first working chamber and the second working chamber; a first oil inlet and a second oil inlet are formed in the valve cover; a first oil port and a second oil port are formed in the end, making contact with the first working chamber, of the valve cover; a third oil port and a fourth oil port are formed in the end, making contact with the second working chamber, of the valve cover; both the first oil port and the fourth oil port communicate with the first oil inlet; both the second oil port and the third oil port communicate with the second oil inlet; and two oil channels are arranged on the valve cover and lead to the two working chambers formed between the valve body and the valve cover. By rotating the reversing shaft, one group of oil ports on the valve cover is sealed with a valve block, and by reversely rotating the reversing shaft, the other group of oil ports on the valve cover is sealed with the valve block and meanwhile the former group of sealed oil ports is opened, so that a reversing function is realized.

Description

technical field [0001] The invention relates to the field of valves, in particular to a reversing valve. Background technique [0002] The current reversing valve uses the spool to move relatively in the valve body hole to connect or cut off the oil circuit to change the flow direction of the liquid. If the matching gap between the valve core and the valve body hole is small, it is easy to block; if the matching gap is large, a good sealing surface cannot be formed and it is easy to leak. In this way, high requirements are placed on the manufacturing precision of the valve core and the valve body hole, which increases the difficulty and cost of manufacturing. Contents of the invention [0003] In view of the problems existing in the prior art, the purpose of the present invention is to propose a technical solution for a reversing valve. [0004] The reversing valve described above is characterized in that it includes a valve body, a valve cover and a micro motor, a first...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/04
CPCF16K11/04
Inventor 罗献尧
Owner ZHEJIANG AILIPU TECH