Integral manual multiple-way valve
A multi-way valve, integrated technology, applied in the field of multi-way valve, can solve the problems of difficult processing of spool valve and spool valve hole, large outer diameter of spool valve, large leakage of spool valve and spool valve, etc., so as to reduce the difficulty of processing , The effect of reducing the diameter of the spool valve and reducing the difficulty
Inactive Publication Date: 2010-10-06
徐福刚
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Problems solved by technology
Because the spool valve is integrated with a check valve and an oil-through oil chamber, the outer diameter of the spool valve is relatively large, which makes it difficult to process the spool valve and the spool valve hole, and at the same time, the internal leakage between the spool valve and the spool valve is relatively large. the shortcomings of the existing technology
Method used
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Embodiment Construction
[0013] In order to clearly illustrate the technical features of the solution, the solution will be described below through a specific implementation mode combined with the accompanying drawings.
[0014] It can be seen from the accompanying drawings that an integral manual multi-way valve of this scheme has a first oil inlet 6, a first oil outlet 14, a three-position slide valve left oil outlet 13, a three-position slide valve right Valve body 1 of oil outlet 22, four-position slide valve left oil outlet 12, four-position slide valve right oil outlet 11. There are three-position spool valve holes 19 and four-position spool valve holes 28 parallel to the axis in the valve body 1, and three-position spool valve holes 19 and four-position spool valve holes 28 are respectively equipped with three-position spool valves 4 and four-position spool valves 2 . One end of the three-position slide valve 4 protrudes from the valve body 1 , and the other end is connected to the fixed reset...
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The invention provides a technical scheme for integrated manual multi-way valves, characterized in that a double-functional relief valve is provided with left and right double-functional relief valves of a three-position slide valve, and a check valve is provided with a left check valve and a right check valve of the other three-position slide valve, wherein the left double-functional relief valve of the three-position slide valve is coaxially and fixedly connected to the left check valve of the other three-position slide valve, the right double-functional relief valve of the three-position slide valve is coaxially and fixedly connected to the right check valve of the other three-position slide valve, and the left and right double-functional relief valves are distributed on the upper endsof the three-position slide valves on the two sides of an upper oil inlet cavity, the axes of the left and right double-functional relief valves of the three-position slide valve are parallel with the axes of the other three-position slide valve and a four-position slide valve, the relief valve is parallel with the axis of one three-position slide valves and is positioned between the other three-position slide valve and the four-position slide valve, a check valve of the four-position slide valve is parallel with the axis of the three-position slide valves and is positioned between the other three-position slide valve and the four-position slide valve, and the three-position and four-position slide valves are provided with middle grooves thereof respectively.
Description
Technical field: [0001] The invention relates to a multi-way valve used in hydraulic systems of large and medium-sized engineering machinery, in particular to an integral manual multi-way valve. Background technique: [0002] In the prior art, the known technology is the DF series multi-way valve in use, and the DF series multi-way valve is the most widely used. The valve mainly adopts an integral valve body, and the check valve is integrated into the slide valve. Because the spool valve is integrated with a check valve and an oil-through oil chamber, the outer diameter of the spool valve is relatively large, which makes it difficult to process the spool valve and the spool valve hole, and at the same time, the internal leakage between the spool valve and the spool valve is relatively large. It is the weak point that existing technology exists. Invention content: [0003] The purpose of the present invention is to provide an integral manual multi-way valve technical solut...
Claims
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IPC IPC(8): F15B13/02F16K11/06F16K31/60
Inventor 徐福刚王延民李冰
Owner 徐福刚