Integrated type multi-way directional valve
A multi-way reversing valve and reversing valve technology, which is applied in the direction of fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve the problems of stuck movement of the valve stem, difficulty in ensuring the working state, and leakage of the valve plate. To achieve the effect of ensuring stability and reliability, realizing stability and reliability, and reducing processing time
Pending Publication Date: 2019-11-08
四川长江液压件有限责任公司
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Problems solved by technology
[0002] The existing multi-way reversing valve is formed by connecting several reversing valve plates through bolts passing through each valve body, and the oil passage between two adjacent reversing valve plates needs to be provided with a seal; its disadvantages are: 1 . Leakage phenomenon is easy to occur between each valve plate, and the reliability of the multi-way valve is poor; 2. The structure of the valve block is not compact enough, and the volume is large; Throttling phenomenon, the pressure loss of the inlet and outlet oil is too large, it is difficult to ensure a good working condition; 4. The deformation of the valve hole caused by the tightening of the bolts in series between the valve plates causes the valve stem to get stuck when moving, and it is impossible to guarantee more The stability and reliability of the valve work; 5. The work efficiency of each valve assembly is low in mass production
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[0021] Below in conjunction with accompanying drawing, the present invention is described in further detail.
[0022] Such as Figure 1 to Figure 8 As shown, an integral multi-way reversing valve of this embodiment includes a valve body 1, a check valve 4 and a relief valve 8 arranged in the valve body 1, seven valve stems 5, and 5 The handle 6 and reset element 7 at both ends, the valve body 1 is provided with an oil inlet 2 (P), an oil return port 3 (T), an auxiliary oil inlet 12 (P1) and an auxiliary oil return port 13 (T1). The oil port 2 is connected to the auxiliary oil inlet 12, and the check valve 4 and the overflow valve 8 are located between the oil inlet 2 and the oil return port 3; there is also a high-pressure valve connected to the rear cavity of the check valve in the valve body 1. Oil inlet passage 9, two low-pressure oil return passages 10, 11 and seven reversing valve chute 14; two low-pressure oil return passages 10, 11 are connected to oil return port 3, a...
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The invention discloses an integrated type multi-way directional valve. The integrated type multi-way directional valve comprises a valve body, a one-way valve arranged in the valve body between an oil inlet and an oil outlet, and a plurality of valve rods, wherein a high-pressure oil inlet channel, two low-pressure oil return channels and a plurality of direction valve slide slots are formed in the valve body; the two low-pressure oil return channels are connected to the oil return hole; each directional valve slide slot is connected to the high-pressure oil inlet channel and the two low-pressure oil return channels; each directional valve slide slot is connected to two working oil hole channels and two middle-position pressure relief channels; the oil inlet, the middle pressure relief channel in each directional valve slide slot and a middle pressure output hole in the valve body are sequentially connected; and each valve rod is arranged in the respective directional valve slide slotin a sliding mode. The integrated type multi-way directional valve has the advantages of being compact in structure, small in size, free of leakage and small in pressure loss, prevents the valve rodsfrom moving to generate blockage, ensures working stability and reliability of the multi-way valve, and improves working efficiency.
Description
technical field [0001] The invention relates to a multi-way reversing valve. Background technique [0002] The existing multi-way reversing valve is formed by connecting several reversing valve plates through bolts passing through each valve body, and the oil passage between two adjacent reversing valve plates needs to be provided with a seal; its disadvantages are: 1 . Leakage is easy to occur between the valve plates, and the reliability of the multi-way valve is poor; 2. The structure of the valve block is not compact enough, and the volume is large; Throttling phenomenon, the pressure loss of the inlet and outlet oil is too large, it is difficult to ensure a good working condition; 4. The deformation of the valve hole caused by the tightening of the bolts in series between the valve plates causes the valve stem to get stuck when moving, and it is impossible to guarantee more The stability and reliability of the valve work; 5. The work efficiency of each valve assembly i...
Claims
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IPC IPC(8): F15B13/02
CPCF15B13/021
Inventor 吕林其阳云王德华王夏金欧常斌
Owner 四川长江液压件有限责任公司