Nozzle flapper proportional valve

The electrical signal is converted into a mechanical signal by a nozzle baffle proportional valve. The movement of the proportional valve core is achieved by using a conical spring and an electromagnet. This solves the problems of low output pressure and slow response speed in traditional hydraulic systems, and reduces power loss and improves pressure regulation speed.

CN224515515UActive Publication Date: 2026-07-17HEBEI SHANGTAI HELI HYDRAULIC COMPONENTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI SHANGTAI HELI HYDRAULIC COMPONENTS CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In traditional hydraulic systems, nozzle-flap valves suffer from problems such as low output pressure, slow response speed, complex structure, high cost, and significant power loss.

Method used

The nozzle baffle proportional valve converts electrical signals into mechanical signals. Through the cooperation of a conical spring and an electromagnet, the valve core is pushed to move, forming a throttle orifice and automatically adjusting the size of the throttle orifice to achieve rapid pressure control.

Benefits of technology

It reduces power loss, increases output pressure and response speed, has a simple structure and low cost, and provides stable thrust and pressure regulation capabilities.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224515515U_ABST
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Abstract

The utility model discloses a nozzle baffle proportional valve relates to proportional valve technical field. Including spout proportioning valve cover, the one end port in spout proportioning valve cover is slidably connected with spout proportioning valve spool, and the bottom end inner wall of spout proportioning valve spool is compatible with the one end port inner wall of spout proportioning valve cover, and the other end port in spout proportioning valve cover is fixed with spout proportioning valve nozzle, and the top end of spout proportioning valve spool is installed with proportional pressure reducing valve spool cap. The utility model discloses through with electric signal conversion for mechanical signal, promote spout proportioning valve spool movement. When nozzle baffle valve does not work, external oil source tends to closed state, and reduces power loss, when nozzle baffle valve works, and spout proportioning valve spool forms the throttle between spout proportioning valve cover, and according to the size of the automatic regulation of the size of the throttle of electromagnet force cooperation with spout proportioning valve cover realizes the pressure reducing effect. There is spout proportioning valve nozzle structure in pressure reducing valve export.
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Claims

1. A nozzle flapper proportional valve comprising a nozzle flapper proportional valve housing (4) characterized by: A proportional spray valve core (6) is slidably connected inside one end port of the proportional spray valve sleeve (4). The inner wall of the bottom end of the proportional spray valve core (6) is adapted to the inner wall of one end port of the proportional spray valve sleeve (4). A proportional spray valve nozzle (1) is fixed inside the other end port of the proportional spray valve sleeve (4). A proportional pressure reducing valve core cap (7) is installed on the top of the proportional spray valve core (6). A conical spring (5) is provided between the proportional pressure reducing valve core cap (7) and the proportional spray valve sleeve (4). The conical spring (5) is sleeved on... On the outside of the proportional valve core (6), the nozzle baffle proportional valve can convert the electrical signal into a mechanical signal, pushing the proportional valve core (6) to move axially along the proportional valve sleeve (4); when not working, the proportional valve core (6) cooperates with the inner wall of the proportional valve sleeve (4) under the elastic force of the conical spring (5) to close the external oil source passage; when working, a throttle orifice is formed between the proportional valve core (6) and the proportional valve sleeve (4), and the opening of the throttle orifice is automatically adjusted according to the magnitude of the electromagnet force to achieve pressure reduction.

2. The nozzle flapper proportional valve of claim 1, wherein: The side wall of the spray ratio valve sleeve (4) is provided with a preset hole, and a process ball plug (3) is embedded in the preset hole to seal the non-working oil passage on the spray ratio valve sleeve (4).

3. The nozzle flapper proportional valve of claim 1, wherein: The outer wall of the spray ratio valve sleeve (4) is fitted with a spray ratio valve sealing ring (2).

4. The nozzle flapper proportional valve of claim 1, wherein: The end of the nozzle (1) of the proportional valve facing the proportional valve core (6) is arranged opposite to the corresponding end of the proportional valve core (6) to form a nozzle baffle structure, which is used to further ensure the accuracy of the outlet pressure of the proportional valve.

5. The nozzle flapper proportional valve of claim 1, wherein: The end of the spray ratio valve core (6) facing the spray ratio valve nozzle (1) is cylindrical, forming a fit or separation relationship with the port of the spray ratio valve nozzle (1) to control the opening degree of the nozzle baffle structure.

6. The nozzle flapper proportional valve of claim 1, wherein: The top of the spray ratio valve core (6) is provided with an installation groove, and the ratio pressure reducing valve core cap (7) is installed in the installation groove.