Plate-type pressure-reducing overflow valve group

By designing a plate-type pressure-reducing relief valve assembly, the problems of complex installation and space occupation of existing pressure-reducing valve assemblies are solved, simplifying installation and achieving reverse relief function, thereby improving the stability and efficiency of the hydraulic system.

CN223608973UActive Publication Date: 2025-11-28SHANGHAI MINGZHUO HYDRAULICS PRESS CO LTD
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Patent Information

Application Number
CN202520390469.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2025-11-28
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

Existing pressure reducing valve assemblies require an external oil port, which is troublesome to install, takes up space, and lacks reverse overflow function.

Method used

Design a plate-type pressure reducing overflow valve assembly. It adopts a rectangular valve body and integrates an oil source port, a pressure reducing port, an oil return port, and a mounting hole. The pressure reducing overflow valve includes an oil inlet, an external interface, and an oil outlet, enabling plate-type installation and providing reverse overflow function.

Benefits of technology

It simplifies the installation process, saves space, and has a reverse overflow function. The pressure reducing overflow valve group automatically unloads to the return port when the pressure is too high, which improves the stability and efficiency of the system.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a plate-type pressure-reducing overflow valve bank, and relates to the technical field of valve banks. The plate type pressure reducing overflow valve group comprises a rectangular valve body, an oil source port, a pressure reducing port and an oil return port are formed in the front side face of the valve body, a pressure reducing overflow valve is installed on the left side face of the valve body, and an installation hole is formed in the rear side face of the valve body; the pressure reducing overflow valve comprises an oil inlet, an external connector and an oil outlet, the oil inlet is connected with the oil source port, the oil outlet is connected with the pressure reducing port, and the external connector is connected with the oil return port. The mounting holes are four through holes formed in the rear side face of the valve body. The valve body is made of alloy steel. The plate-type decompression overflow valve group adopts a plate-type mounting structure, all oil ports in the valve group do not need external pipes, the mounting is convenient, and the mounting space is reduced. In addition, the plate type pressure reducing overflow valve group further has a reverse overflow function, and when the pressure value at the pressure reducing opening reaches the pressure value set by the pressure reducing overflow valve, the hydraulic oil is unloaded through the pressure reducing overflow valve and flows to the oil tank through the oil return opening.
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Description

TECHNICAL FIELD

[0001] The utility model relates to valve group technical field, especially relate to a plate type pressure reducing overflow valve group. BACKGROUND

[0002] In some equipment, there are often multiple actuators, and the required pressure of each actuator is different, if there is only one pressure oil source in the hydraulic system, in order to meet the pressure required by the load with lower pressure, a pressure reducing valve group is often used in the system at this time. The existing pressure reducing valve group mostly uses external connection oil port, which is troublesome to install, occupies too much space, and does not have a reverse overflow function. UTILITY MODEL CONTENTS

[0003] The utility model provides a plate type pressure reducing overflow valve group in view of the technical problem in the above background art.

[0004] The utility model solves the above technical problem through the following technical scheme:

[0005] The utility model provides a plate type pressure reducing overflow valve group. The plate type pressure reducing overflow valve group includes the valve body of rectangular body, is equipped with oil source mouth, pressure reducing mouth, oil return mouth and flat bottom hole on the front side of valve body respectively, is equipped with pressure reducing overflow valve on the left side of valve body, is equipped with mounting hole on the back side of valve body.

[0006] The pressure reducing overflow valve includes oil inlet, external interface and oil outlet, the oil inlet is connected with the oil source mouth, the oil outlet is connected with the pressure reducing mouth, and the external interface is connected with the oil return mouth.

[0007] Preferably, the mounting hole is four through holes arranged on the back side of the valve body.

[0008] Preferably, the plate type pressure reducing overflow valve group is of a plate type structure.

[0009] Preferably, the pressure reducing overflow valve is a pilot control type overflow valve.

[0010] Preferably, the valve body is made of alloy steel.

[0011] The utility model discloses a positive progress effect lies in: the utility model provides a kind of plate type pressure reducing overflow valve group. The plate type pressure reducing overflow valve group includes the valve body of rectangular body, oil source port, pressure reducing port, oil return port are respectively equipped on the front side of valve body, pressure reducing overflow valve is installed on the left side of valve body, installation hole is equipped on the back side of valve body;Pressure reducing overflow valve includes oil inlet, external interface and oil outlet, oil inlet is connected with oil source port, oil outlet is connected with pressure reducing port, and external interface is connected with oil return port. Installation hole is four through holes arranged on the back side of valve body. Valve body is alloy steel material. The plate type pressure reducing overflow valve group of the utility model adopts plate type mounting structure, all oil ports in valve group do not need external pipe, facilitate installation, reduce the space of installation. In addition, the plate type pressure reducing overflow valve group of the utility model also has reverse overflow function, when the pressure value at pressure reducing port reaches the pressure value set by pressure reducing overflow valve, hydraulic oil will be unloaded through pressure reducing overflow valve and pass through oil return port to oil tank. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the schematic view of valve body part structure of the utility model.

[0013] Fig. 2 It is the structural schematic view of pressure reducing overflow valve of the utility model.

[0014] Fig. 3 It is the working principle diagram of plate type pressure reducing overflow valve group of the utility model.

[0015] Legend: 1, valve body;2, pressure reducing overflow valve;3, oil source port;4, pressure reducing port;5, oil return port;6, installation hole;21, oil inlet;22, external interface;23, oil outlet. DETAILED DESCRIPTION

[0016] The utility model is further illustrated by way of example below, but it is not therefore limited to the utility model in the range of the described embodiment.

[0017] Example 1

[0018] As Figs. 1-3 Indicated, the embodiment provides a kind of plate type pressure reducing overflow valve group. The plate type pressure reducing overflow valve group includes the valve body 1 of rectangular body, oil source port 3, pressure reducing port 4, oil return port 5 are respectively equipped on the front side of valve body 1, pressure reducing overflow valve 2 is installed on the left side of valve body 1, installation hole 6 is equipped on the back side of valve body 1;Pressure reducing overflow valve 2 includes oil inlet 21, external interface 22 and oil outlet 23, oil inlet 21 is connected with oil source port 3, oil outlet 23 is connected with pressure reducing port 4, and external interface 22 is connected with oil return port 5. Installation hole 6 is four through holes arranged on the back side of valve body 1. Valve body 1 is alloy steel material.

[0019] The plate type pressure reducing overflow valve group is of a plate type structure; the mounting structure of the plate type pressure reducing overflow valve group of the embodiment is plate type mounting, all oil ports in the valve group do not need external pipes, which facilitates installation and reduces installation space. The pressure reducing overflow valve is a pilot control type overflow valve, and the pressure reducing overflow valve is of a pilot control type, which adjusts the high pressure main oil way pressure of the oil source port 3 to the required pressure reducing pressure of the pressure reducing port 4, and simultaneously has the full flow overflow function from the pressure reducing port 4 to the oil return port 5.

[0020] The working principle of the utility model is that: hydraulic oil enters from the oil source port 3, the pressure reducing communication of the pressure reducing overflow valve 2, that is, the communication of the oil inlet port 21 and the oil outlet port 23 of the valve body 1; the hydraulic oil flows to the pressure reducing port 4 through the pressure reducing overflow valve 2. When the pressure value at the pressure reducing port 4 is too large, the hydraulic oil at the pressure reducing port 4 flows back, the pressure reducing overflow valve 2 is adjusted to communicate the pressure reducing port 4 and the oil return port 5 through the valve core inside the pressure reducing overflow valve 2, that is, the oil outlet port 23 of the pressure reducing overflow valve 2 communicates with the external port 22, and the hydraulic oil flows to the oil return port 3 to the oil tank through the pressure reducing overflow valve 2.

[0021] Although the specific embodiments of the utility model are described above, those skilled in the art should understand that this is only an example, the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the utility model, but these changes and modifications all fall within the protection scope of the utility model.

Claims

1. A plate pressure reducing relief valve group, characterized by, The plate type pressure reducing overflow valve group comprises a rectangular valve body, the front side of the valve body is respectively provided with an oil source port, a pressure reducing port, an oil return port and a flat bottom hole, a pressure reducing overflow valve is installed on the left side of the valve body, and a mounting hole is arranged on the rear side of the valve body. The pressure reducing overflow valve comprises an oil inlet, an external interface and an oil outlet, the oil inlet is connected with the oil source port, the oil outlet is connected with the pressure reducing port, and the external interface is connected with the oil return port.

2. The plate pressure reducing relief valve group according to claim 1, wherein The mounting hole is a through hole arranged on the rear side of the valve body.

3. The plate pressure reducing relief valve group according to claim 1, wherein The plate type pressure reducing overflow valve group is of a plate type structure.

4. The plate pressure reducing relief valve group according to claim 1, wherein The pressure reducing overflow valve is a pilot control type overflow valve.

5. The plate pressure reducing relief valve group according to claim 1, wherein The valve body is made of alloy steel.