Energy-saving hydraulic valve

By using the magnetic attraction between the annular boss made of permanent magnet material and the valve core, and the precise control of the electromagnet, the problems of high power consumption and inaccurate reset of traditional hydraulic valves are solved, realizing energy saving and stable operation of hydraulic valves, and improving the efficiency and reliability of hydraulic systems.

CN224093603UActive Publication Date: 2026-04-07YANGZHOU HONGWEI MASCH EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Traditional hydraulic valves rely on continuous power supply for valve core position control, resulting in high energy consumption and untimely or inaccurate reset, which affects the service life and working efficiency of the hydraulic valve.

Method used

The annular boss made of permanent magnet material interacts with the magnetic ring of the valve core. Combined with the precise control of the electromagnet, the valve core position is controlled by magnetic attraction or repulsion of the columnar valve block, reducing power consumption. The valve core is accurately reset by the elastic reset component.

Benefits of technology

This achieves energy-saving operation of hydraulic valves, reduces power consumption, improves energy utilization efficiency, ensures precise control of valve cores and stability of hydraulic systems, and meets the energy-saving and environmental protection requirements of modern industry.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hydraulic valves, and discloses an energy-saving hydraulic valve which comprises a valve pipe horizontally distributed in the transverse direction, four annular bosses are evenly distributed in the valve pipe, the interior of the valve pipe is divided into five oil guide cavities by the four annular bosses, a valve element is clamped in the valve pipe in a sliding mode, and the valve element is connected with the valve pipe in a sliding mode. The valve element is specifically formed by combining three columnar valve blocks and connecting shafts connected between the adjacent columnar valve blocks, a magnetic attraction ring is embedded in the outer ring of each columnar valve block, the three columnar valve blocks slide in a columnar channel formed by connecting the inner rings of the four annular bosses, and the four annular bosses are all made of permanent magnet materials. According to the energy-saving hydraulic valve, through the magnetic attraction effect of the annular boss made of the permanent magnet material and the valve element, accurate control over the valve element through the electromagnet and reasonable structural design, consumption of electric energy is effectively reduced, the energy utilization efficiency is improved, the operation cost is reduced, and the energy-saving hydraulic valve has the remarkable energy-saving advantage. Meanwhile, the energy-saving design of the hydraulic valve also meets the requirements of the modern industry on energy conservation and environmental protection.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic valve technology, specifically to an energy-saving hydraulic valve. Background Technology

[0002] Hydraulic valves, as crucial control components in hydraulic systems, are widely used in various mechanical equipment. In modern industry, the performance and efficiency of hydraulic systems are of great significance for the normal operation of equipment and for energy conservation and consumption reduction.

[0003] However, existing hydraulic valves have some shortcomings. Traditional hydraulic valves often rely on a continuous power supply to an electromagnet to maintain the valve spool's position, resulting in significant energy consumption. Because the electromagnet needs to constantly output electrical energy to maintain the valve spool's position, this not only increases energy costs but may also cause the system to overheat, affecting the valve's lifespan and reliability.

[0004] In addition, traditional hydraulic valves may experience problems with untimely or inaccurate reset during the valve core reset process, which can also affect the working efficiency and energy-saving effect of the hydraulic valve. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an energy-saving hydraulic valve to solve the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving hydraulic valve, comprising a valve tube horizontally distributed laterally, with four annular bosses evenly distributed inside the valve tube, dividing the valve tube into five oil guiding chambers. A valve core is slidably engaged inside the valve tube, and the valve core is specifically composed of three columnar valve blocks and a connecting shaft connecting adjacent columnar valve blocks. Each columnar valve block has a magnetic ring embedded in its outer ring. The three columnar valve blocks slide within the columnar channels connected by the inner rings of the four annular bosses. All four annular bosses are made of permanent magnet material.

[0009] As a preferred technical solution of this utility model, an oil pump interface is provided at the center of the bottom of the valve tube, and oil return ports are provided on both the left and right sides of the oil pump interface at the bottom of the valve tube. Two oil guide ports are provided at the top of the valve tube. The oil pump interface is connected to the central oil guide chamber. The oil return ports on both sides of the bottom are connected to the two outermost oil guide chambers respectively. The two oil guide ports at the top are connected to the two adjacent central oil guide chambers on the left and right respectively.

[0010] As a preferred technical solution of this utility model, elastic reset components are installed at both the left and right ends of the valve tube, which are respectively connected to the columnar valve blocks on both sides.

[0011] As a preferred technical solution of this utility model, the elastic reset component specifically includes the following structure:

[0012] A retaining ring installed at the end of the valve pipe;

[0013] The return spring is installed on the inner end face of the fixed ring, and one end of the return spring rests on the outer end face of the columnar valve block on the same side.

[0014] As a preferred technical solution of this utility model, electromagnets are installed on both the left and right ends of the valve tube. An iron rod is connected to the output end of the electromagnet, and one end of the iron rod rests against the center of the outer end face of the columnar valve block on the same side.

[0015] As a preferred technical solution of this utility model, the transverse width of the oil guiding chamber formed between adjacent annular bosses is smaller than the thickness of the columnar valve block.

[0016] Compared with the prior art, this utility model provides an energy-saving hydraulic valve with the following advantages:

[0017] Magnetic energy saving: The annular boss is made of permanent magnet material, which can interact with the magnetic ring of the valve core. Magnetic attraction occurs after the valve core position changes, reducing the power output of the electromagnets on both sides, which helps in valve core position control, reduces power consumption, and achieves energy-saving operation of the hydraulic valve.

[0018] Precise control and energy saving: By controlling the on and off of the electromagnet, a magnetic force is generated to attract or repel the columnar valve block, which precisely controls the position of the valve core, avoiding unnecessary waste of electrical energy and allowing the working state of the hydraulic valve to be flexibly adjusted, thereby achieving energy saving.

[0019] In summary, this energy-saving hydraulic valve effectively reduces electrical energy consumption, improves energy efficiency, and lowers operating costs through the magnetic attraction between the annular boss made of permanent magnet material and the valve core, the precise control of the valve core by the electromagnet, and a reasonable structural design, demonstrating significant energy-saving advantages. Furthermore, the energy-saving design of this hydraulic valve meets the requirements of modern industry for energy conservation and environmental protection, contributing to the sustainable development of the industry. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal half-section structure of the valve tube of this utility model;

[0022] Figure 3 This is a schematic diagram of the valve core structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the elastic reset component of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the valve core in the position switching state of this utility model.

[0025] The components include: 1. Valve pipe; 2. Annular boss; 3. Valve core; 4. Oil pump interface; 5. Oil guide port; 6. Oil return port; 7. Elastic reset assembly; 8. Iron rod; 9. Electromagnet.

[0026] 31. Columnar valve block; 32. Connecting shaft; 33. Magnetic ring;

[0027] 71. Retaining ring; 72. Return spring. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.

[0029] It should be noted that if the utility model embodiment involves directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the utility model.

[0031] Please see Figure 1-5 An energy-saving hydraulic valve is described, the main component of which is a horizontally distributed valve tube 1. Four annular bosses 2 are evenly distributed inside the valve tube 1, dividing the interior into five oil-guiding chambers. These annular bosses 2 not only serve to separate the chambers, but their permanent magnet material also allows them to interact with the valve core 3, enabling magnetic attraction after the valve core 3 switches to different positions. This reduces the electrical energy output of the electromagnets 9 on both sides, contributing to the position control of the valve core 3 and the energy-saving operation of the hydraulic valve.

[0032] A valve core 3 is slidably engaged inside the valve tube 1. The valve core 3 is composed of three columnar valve blocks 31 and a connecting shaft 32 connecting adjacent columnar valve blocks 31. Each columnar valve block 31 has a magnetic ring 33 embedded in its outer ring. The magnetic ring 33 attracts the permanent magnet material of the annular boss 2, enabling rapid positioning between the open and closed states of the various oil guide chambers. The three columnar valve blocks 31 slide flexibly within the columnar channels connected by the inner rings of the four annular bosses 2, ensuring the normal operation of the hydraulic valve.

[0033] A pump port 4 is located at the center of the bottom of valve tube 1 for connecting to an oil pump to supply hydraulic oil to the hydraulic valve. Return ports 6 are located on both the left and right sides of the pump port 4 at the bottom of valve tube 1 to drain used hydraulic oil and achieve hydraulic oil recycling. Two guide ports 5 are located at the top of valve tube 1 to guide hydraulic oil to other hydraulic equipment for hydraulic energy transfer and control. The pump port 4 is connected to the central guide chamber, ensuring that the hydraulic oil supplied by the pump can smoothly enter the valve tube 1. The return ports 6 on both sides of the bottom are connected to the two outermost guide chambers, allowing used hydraulic oil to be discharged promptly. The two guide ports 5 at the top are connected to the two adjacent guide chambers on the left and right sides of the center, accurately guiding the hydraulic oil controlled by the valve core 3 to the required location.

[0034] Both the left and right ends of the valve tube 1 are equipped with elastic reset components 7. These components include a retaining ring 71 installed at the end of the valve tube 1 and a reset spring 72 installed on the inner end face of the retaining ring 71. One inner end of the reset spring 72 rests against the outer end face of the columnar valve block 31 on the same side. When the valve core 3 is moved by an external force, the reset spring 72 can provide a restoring force to return the valve core 3 to its initial position, ensuring the stability and reliability of the hydraulic valve.

[0035] Electromagnets 9 are installed on both the left and right ends of the valve tube 1. An iron rod 8 is connected to the output end of the electromagnet 9. One end of the iron rod 8 rests against the center of the outer end face of the columnar valve block 31 on the same side. By controlling the on and off of the electromagnet 9, a magnetic force can be generated to attract or repel the columnar valve block 31, thereby further precisely controlling the position of the valve core 3 and realizing flexible adjustment of the working state of the hydraulic valve.

[0036] In addition, the lateral width of the oil guiding chamber formed between adjacent annular bosses 2 is less than the thickness of the columnar valve block 31. This ensures that the columnar valve block 31 can effectively seal the oil guiding chamber, prevent hydraulic oil leakage, and improve the working efficiency and energy-saving effect of the hydraulic valve.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An energy-saving hydraulic valve, comprising horizontally distributed valve pipes (1), characterized in that: The valve tube (1) has four annular protrusions (2) evenly distributed inside. The four annular protrusions (2) divide the valve tube (1) into five oil guide chambers. The valve core (3) is slidably engaged inside the valve tube (1). The valve core (3) is specifically composed of three columnar valve blocks (31) and a connecting shaft (32) connecting adjacent columnar valve blocks (31). Each columnar valve block (31) has a magnetic ring (33) embedded in its outer ring. The three columnar valve blocks (31) slide inside the columnar channel connected by the inner rings of the four annular protrusions (2). The four annular protrusions (2) are all made of permanent magnet material.

2. The energy-saving hydraulic valve according to claim 1, characterized in that: The valve tube (1) has an oil pump interface (4) at the bottom center. The valve tube (1) has oil return ports (6) on both the left and right sides of the oil pump interface (4). The valve tube (1) has two oil guide ports (5) at the top. The oil pump interface (4) is connected to the central oil guide chamber. The oil return ports (6) on both sides of the bottom are connected to the two outer oil guide chambers respectively. The two oil guide ports (5) at the top are connected to the two adjacent oil guide chambers on the left and right sides of the center respectively.

3. The energy-saving hydraulic valve according to claim 1, characterized in that: The valve tube (1) is equipped with elastic reset components (7) at both the left and right ends, which are respectively connected to the columnar valve blocks (31) on both sides.

4. The energy-saving hydraulic valve according to claim 3, characterized in that: The elastic reset component (7) specifically includes the following structure: A retaining ring (71) is installed at the end of the valve tube (1); The return spring (72) is installed on the inner end face of the fixed ring (71), and one end of the return spring (72) rests on the outer end face of the columnar valve block (31) on the same side.

5. The energy-saving hydraulic valve according to claim 1, characterized in that: Electromagnets (9) are installed on both the left and right ends of the valve tube (1). An iron rod (8) is connected to the output end of the electromagnet (9). One end of the iron rod (8) is pressed against the center of the outer end face of the columnar valve block (31) on the same side.

6. The energy-saving hydraulic valve according to claim 1, characterized in that: The transverse width of the oil guide chamber formed between adjacent annular bosses (2) is less than the thickness of the columnar valve block (31).