Simple multi-way valve structure
By designing a simple multi-way valve structure, the oil circuit of the hydraulic system is simplified and the use of appropriate valve components is used, the fault problems caused by complex oil circuits in the hydraulic systems of existing agricultural machinery are solved, and the reliability and efficiency of the system are improved.
Patent Information
- Application Number
- CN202420329373.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-22
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-02-22
AI Technical Summary
There are unnecessary complex oil circuits in the hydraulic systems of existing agricultural machinery, which are prone to failure and have a long time to troubleshoot.
A simple multi-way valve structure is designed, including multiple working hydraulic systems, which simplifies the oil circuit and eliminates the floating position, and uses three-position four-way solenoid valves, one-way valves, relief valves and shut-off valves and other components. Ensure the safety and stability of the hydraulic oil circuit.
The oil circuit of the hydraulic system is simplified, the possibility of failure and troubleshooting time are reduced, and the reliability and efficiency of the system are improved.
Smart Images
Figure CN222457920U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a simple multi-way valve structure. Background Art
[0002] Most agricultural machines use hydraulic systems to control the operation of the machines. The multi-way valve assembly is an indispensable part of the hydraulic system. The multi-way valve adopts a unified modular design as a whole, which can provide a reliable system solution for the manufacturers of engineering vehicles. Users can combine the valve body in different ways according to functional requirements, which is simple and reliable. It can be a simple load-sensitive manual multi-way valve, or an electronically controlled proportional control valve with non-saturation function that is independent of load and pump flow.
[0003] According to continuous development, the hydraulic system has become more and more perfect, but in the hydraulic system of some agricultural machines, there are many unnecessary parts, which make the hydraulic oil circuit more complicated, prone to failure, and take more time to troubleshoot. Utility Model Content
[0004] The purpose of the utility model is to solve the above deficiencies in the prior art and provide a simple multi-way valve structure.
[0005] A simple multi-way valve structure includes multiple working hydraulic systems, the working hydraulic system includes a first hydraulic oil circuit and a second hydraulic oil circuit, the first hydraulic oil circuit and the second hydraulic oil circuit are respectively connected to an inner cavity of a cylinder, the first hydraulic oil circuit and the second hydraulic oil circuit are respectively connected to a three-position four-way solenoid valve, the three-position four-way solenoid valve is respectively connected to a hydraulic source and a return oil tank, and a stop valve is provided between the first hydraulic oil circuit or the second hydraulic oil circuit and the return oil tank.
[0006] In order to prevent the hydraulic oil from flowing back, a one-way valve is provided between the three-position four-way solenoid valve and the hydraulic source, and the outlet of the one-way valve is connected to the three-position four-way solenoid valve.
[0007] In order to prevent excessive oil circuit pressure, an overflow valve is installed between the hydraulic source and the return oil tank.
[0008] Beneficial effects: Compared with the prior art, the multi-way valve structure eliminates the floating position and simplifies the overall oil circuit. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of a simple multi-way valve structure;
[0010] In the figure, 1, the first hydraulic oil circuit, 2, the second hydraulic oil circuit, 3, the three-position four-way solenoid valve, 4, the one-way valve, 5, the hydraulic source, 6, the overflow valve, 7, the return oil tank, 8, the stop valve. DETAILED DESCRIPTION
[0011] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.
[0012] like Figure 1 As shown, the first hydraulic oil circuit 1, the second hydraulic oil circuit 2, the three-position four-way solenoid valve 3, the one-way valve 4, the hydraulic source 5, the overflow valve 6, the oil return tank 7, and the stop valve 8;
[0013] A simple multi-way valve structure includes multiple working hydraulic systems, the working hydraulic system includes a first hydraulic oil circuit 1 and a second hydraulic oil circuit 2, the first hydraulic oil circuit 1 and the second hydraulic oil circuit 2 are respectively connected to an inner cavity of a cylinder, the first hydraulic oil circuit 1 and the second hydraulic oil circuit 2 are respectively connected to a three-position four-way solenoid valve 3, the three-position four-way solenoid valve 3 is respectively connected to a hydraulic source 5 and a return oil tank 7, and a stop valve 8 is provided between the first hydraulic oil circuit 1 or the second hydraulic oil circuit 2 and the return oil tank 7.
[0014] In this embodiment, a one-way valve 4 is provided between the three-position four-way solenoid valve 3 and the hydraulic source 5 , and a liquid outlet of the one-way valve 4 is connected to the three-position four-way solenoid valve 3 .
[0015] In this embodiment, an overflow valve 6 is provided between the hydraulic source 5 and the oil return tank 7 .
[0016] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A simple multi-way valve structure, characterized in that: It includes multiple working hydraulic systems, the working hydraulic system includes a first hydraulic oil circuit and a second hydraulic oil circuit, the first hydraulic oil circuit and the second hydraulic oil circuit are respectively connected to an inner cavity of the cylinder, the first hydraulic oil circuit and the second hydraulic oil circuit are respectively connected to a three-position four-way solenoid valve, the three-position four-way solenoid valve is respectively connected to a hydraulic source and a return oil tank, and a stop valve is provided between the first hydraulic oil circuit or the second hydraulic oil circuit and the return oil tank.
2. A simple multi-way valve structure according to claim 1, characterized in that: A one-way valve is arranged between the three-position four-way solenoid valve and the hydraulic source, and the liquid outlet of the one-way valve is connected to the three-position four-way solenoid valve.
3. A simple multi-way valve structure according to claim 1, characterized in that: An overflow valve is arranged between the hydraulic source and the oil return tank.