Dual-hydraulic-control dual-loop rapid liquid supply valve for columns

[0014] The embodiments of the present invention will be described in further detail below. The content that is not described in detail in the embodiments of the present invention belongs to the prior art known to those skilled in the art.

[0015] The preferred embodiment of the dual-liquid control dual-circuit type column quick liquid supply valve of the present invention is:

[0016] It includes a valve body with a symmetrical structure on the left and right sides. The valve body on each side is provided with a separate valve core, a liquid supply interface and a control port, forming a relatively independent liquid supply circuit when supplying or returning liquid to a specific column.

[0017] The liquid inlets on the left and right valve bodies communicate with each other, and the liquid return ports communicate with each other.

[0018] The liquid inlets on the left and right valve bodies are connected with one or two liquid inlet hoses; the liquid return ports on the left and right valve bodies are connected with one or two liquid return hoses.

[0019] The liquid inlet, the liquid return port and the liquid supply interface are connected with joints through threads.

[0020] The dynamic sealing position of the valve core adopts a steel sealing matching structure.

[0021] The valve bodies on the left and right sides supply liquid separately or together.

[0022] The dual-liquid-control dual-circuit type column rapid liquid supply valve of the present invention adopts a dual-liquid-control dual-circuit rapid liquid supply structure, with two liquid inlets and two liquid return ports to ensure liquid supply flow and reduce liquid supply loss; Two control ports are arranged on the valve body of the liquid valve to control the two liquid supply valve cores respectively. When the control port has high pressure liquid, the corresponding valve core action will supply liquid to the connected column. After the liquid supply is stopped, if the column is installed with a hydraulic control When the one-way valve is opened in a controlled manner, the high-pressure liquid in the column flows into the liquid return pipeline through the corresponding spool in the reverse direction; the other control port of the quick liquid supply valve can also perform the above actions to complete the function of rapid inflow and liquid return. However, the functions and actions of the two circuits are relatively independent, and there is no interference with each other. If one set of inlet and return ports has met the flow requirements, only one set of inlet and return pipes can be connected to make the pipeline layout more concise.

[0023] The invention integrates two conventional quick liquid supply valves on one valve, and the valve core and joints are easy to disassemble and assemble, and to replace key parts. This saves installation space, simplifies the pipeline layout, and greatly reduces the cost and is more versatile. it is good.

[0024] Specific embodiments, such as Figure 1 to Figure 3 Shown, including:

[0025] With dual control ports, each control port and the corresponding spool form a relatively independent circuit without interfering with each other, so that applications that require two ordinary fast liquid supply valves only need one valve to meet the requirements of use.

[0026] The fast liquid supply valve has 2 liquid inlet and return ports, and the 2 liquid inlet ports and the liquid return ports are respectively communicated, which can ensure sufficient inlet and return flow, and can also connect 1 or 2 sets of liquid inlet and return as needed Hose.

[0027] The symmetrical valve body design uses threaded joints instead of embedded valve body interfaces, simplifying the function and structure of the valve body, reducing the processing difficulty and cost, becoming a standardized product component, and enabling the realization of interface specifications Free combination.

[0028] The key sealing position adopts a steel seal matching structure. For hydraulic control valve products such as fast liquid supply valves that operate under high hydraulic pressure for a long time, it greatly improves the insufficiency of hard plastic seals in resisting water impurities. Improve the impact resistance and service life of the seal.

[0029] The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or changes within the technical scope disclosed in the present invention. All replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.