Long-stroke hydraulic electromagnetic valve

Abstract

The utility model relates to the technical field of hydraulic electromagnetic valves, and discloses a long-stroke hydraulic electromagnetic valve which comprises an electromagnetic valve shell, electromagnets are installed on the two sides of the electromagnetic valve shell, a movable valve element mechanism is installed in the electromagnetic valve shell, manual control components are installed at the two ends of the electromagnetic valve shell, and the manual control components are connected with the electromagnetic valve shell. The manual control component can manually adjust the positions of the valve element mechanisms, elastic pieces used for resetting the valve element mechanisms after the valve element mechanisms lose traction force are installed at the ends of the valve element mechanisms, the number of the valve element mechanisms is two, and the two valve element mechanisms are located on the two sides of the interior of the electromagnetic valve shell respectively. The two sealing valve elements are arranged on the two sides of the long-stroke hydraulic device and can be driven by the electromagnets on the two sides respectively, and when the long-stroke hydraulic device works, the two electromagnets control the sealing valve elements on the two sides respectively, so that the working pressure of a single electromagnet is reduced, power needed by the electromagnets during working is reduced, and the effect of reducing the working pressure of the electromagnets is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic solenoid valves, in particular to a long-stroke hydraulic solenoid valve. Background Art

[0002] The hydraulic solenoid valve is a basic automation component used to control fluids. It is a type of directional control valve used to control the on / off flow of oil or change the direction of oil flow.

[0003] When the stroke of the hydraulic device is longer, the pressure required for the liquid to work needs to increase. When the liquid pressure increases, the pressure on the valve core inside the solenoid valve will increase. The valve core in the existing hydraulic solenoid valve is an integral whole, which means that the power required by the electromagnet to adsorb or push the valve core will increase accordingly.

[0004] Therefore, a long-stroke hydraulic solenoid valve is proposed to reduce the pressure on the valve core. Utility Model Content

[0005] The purpose of the utility model is to provide a long-stroke hydraulic solenoid valve to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a long-stroke hydraulic solenoid valve, comprising a solenoid valve housing, electromagnets mounted on both sides of the solenoid valve housing, a movable valve core mechanism mounted inside the solenoid valve housing, manual control components mounted on both ends of the solenoid valve housing, the manual control components being capable of manually adjusting the position of the valve core mechanism, and elastic members mounted on the ends of the valve core mechanism for resetting the valve core mechanism after it loses traction;

[0007] There are two valve core mechanisms, which are respectively located on two sides of the solenoid valve housing and are respectively controlled by two electromagnets;

[0008] The valve core mechanism includes a sealing valve core, wherein one end of the sealing valve core close to the electromagnet is fixedly connected to an extension rod, and the end of the extension rod is fixedly connected to a transmission part, and the transmission part is adsorbed by the electromagnet.

[0009] Preferably, a gap is left between the two sealing valve cores, and magnetic isolation is performed between the two sealing valve cores.

[0010] Preferably, a supporting and stabilizing structure is fixedly connected to the interior of the solenoid valve housing, and the supporting and stabilizing structure separates the sealing valve cores and supports the two sealing valve cores.

[0011] Preferably, the supporting stabilizing structure includes a support rod, which is installed in the center of the solenoid valve housing. A guide hole is opened on the axis of the sealing valve core facing the support rod. The support rod is inserted into the inside of the guide hole, and the sealing valve core slides with the support rod as support.

[0012] Preferably, the supporting stabilizing structure further includes an isolation plate, the outer surface of which is fixedly connected to the inner wall of the solenoid valve housing, and the support rods are fixedly connected to the axis on both sides of the isolation plate, and the lengths of the support rods on both sides are equal.

[0013] Preferably, a plurality of equally spaced liquid through holes are provided on the surface of the isolation plate.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0015] First, the present invention provides two sealing valve cores, and enables the two sealing valve cores to be driven by the electromagnets on both sides respectively. When the long-stroke hydraulic device is working, the two electromagnets respectively control the sealing valve cores on both sides, thereby reducing the working pressure of a single electromagnet and reducing the power required for the electromagnet to work. Moreover, when working, by controlling the electromagnets on both sides to work in different working modes, the mode of hydraulic circuit change can be further improved, thereby reducing the working pressure of the electromagnet and providing more diverse hydraulic circuit transmission modes.

[0016] Second, the utility model supports the support rod by arranging an isolation plate inside the solenoid valve housing, and supports the sealing valve cores on both sides through the support rod, so that the sealing valve core is more stable when moving, and a liquid through hole is provided on the isolation plate to divide the liquid flow. When the solenoid valve is suddenly closed, the impact force of the liquid in the cavity is reduced to protect the sealing valve core, thereby achieving the effect of improving the stability and safety of equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure assembly of the utility model;

[0020] Figure 4 This is a cross-sectional view of the sealing valve core structure of the utility model.

[0021] Among them: 1. Solenoid valve housing; 2. Electromagnet; 3. Valve core mechanism; 301. Sealing valve core; 302. Extension rod; 303. Transmission part; 304. Guide hole; 4. Support and stabilization structure; 401. Isolation plate; 402. Support rod; 403. Liquid through hole; 5. Manual control component; 6. Elastic part. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 A long-stroke hydraulic solenoid valve includes a solenoid valve housing 1, with electromagnets 2 mounted on both sides of the solenoid valve housing 1. The electromagnets 2 are conventional and, therefore, their shape and structure are not fully illustrated in the accompanying drawings. A movable valve core mechanism 3 is mounted inside the solenoid valve housing 1, and manual control components 5 are mounted on both ends of the solenoid valve housing 1. The manual control components 5 can manually adjust the position of the valve core mechanism 3 and perform manual control when the electromagnet 2 fails. An elastic member 6 is mounted on the end of the valve core mechanism 3 for resetting the valve core mechanism 3 after it loses traction.

[0024] There are two valve core mechanisms 3, which are located on both sides of the solenoid valve housing 1 and are controlled by two electromagnets 2 respectively.

[0025] The valve core mechanism 3 includes a sealing valve core 301, and the end of the sealing valve core 301 close to the electromagnet 2 is fixedly connected to an extension rod 302, and the end of the extension rod 302 is fixedly connected to a transmission part 303. The transmission part 303 is adsorbed by the electromagnet 2 to pull the sealing valve core 301 to move to achieve the effect of changing the liquid flow path (the liquid flow path is not drawn in the figure).

[0026] Through the above technical solution, two sealing valve cores 301 are provided, and the two sealing valve cores 301 can be driven by the electromagnets 2 on both sides respectively. When the long-stroke hydraulic device is working, the two electromagnets 2 respectively control the sealing valve cores 301 on both sides, thereby reducing the working pressure of a single electromagnet 2 and reducing the power required for the electromagnet 2 to work. Moreover, when working, by controlling the electromagnets 2 on both sides to work in different working modes, the mode of changing the hydraulic circuit can be further improved, thereby reducing the working pressure of the electromagnet 2 and providing more diverse hydraulic transmission modes.

[0027] The following is a simple example of fluid path changes:

[0028] The electromagnets 2 on both sides simultaneously push the sealing valve core 301 toward the middle;

[0029] The electromagnet 2 on the left side pushes the sealing valve core 301 toward the middle, while the sealing valve core 301 on the right side remains stationary;

[0030] The sealing valve core 301 on the left side remains stationary, and the electromagnet 2 on the right side pushes the sealing valve core 301 toward the center.

[0031] Compared with the traditional single valve core mechanism 3 which can only move in one reverse direction at a time, the above-mentioned usage method has more diversified fluid circuit adjustment solutions.

[0032] Specifically, a gap is left between the two sealing valve cores 301 , and magnetic isolation is performed between the two sealing valve cores 301 .

[0033] Through the above technical solution, the sealing valve cores 301 are magnetically isolated, so that when the electromagnet 2 acts on the sealing valve core 301 on one side, the sealing valve core 301 is prevented from being magnetized and driving the sealing valve core 301 on the other side to move synchronously.

[0034] Specifically, a supporting and stabilizing structure 4 is fixedly connected to the interior of the solenoid valve housing 1 . The supporting and stabilizing structure 4 separates the sealing valve cores 301 and supports the two sealing valve cores 301 .

[0035] Through the above technical solution, the purpose of setting up the supporting stabilizing structure 4 is to improve the stability of the movement of the sealing valve core 301. Because the sealing valve core 301 is divided into two, the stability will be slightly reduced compared with one in the prior art. Therefore, the stability is compensated by the supporting stabilizing structure 4.

[0036] Specifically, the supporting stabilizing structure 4 includes a support rod 402, which is installed in the center of the solenoid valve housing 1. A guide hole 304 is opened on the axis of the sealing valve core 301 facing the support rod 402. The support rod 402 is inserted into the inside of the guide hole 304, and the sealing valve core 301 slides with the support of the support rod 402.

[0037] Through the above technical solution, a support rod 402 is set to be inserted into the inside of the guide hole 304 from the middle of the two sealing valve cores 301, so that the sealing valve cores 301 on both sides form a pseudo-integral that can move independently, while supporting the sealing valve core 301 without hindering the movement of the sealing valve core 301.

[0038] Specifically, the supporting stabilizing structure 4 further includes an isolation plate 401, the outer surface of the isolation plate 401 is fixedly connected to the inner wall of the solenoid valve housing 1, and the support rods 402 are fixedly connected to the axis on both sides of the isolation plate 401, and the lengths of the support rods 402 on both sides are equal.

[0039] Through the above technical solution, the isolation sheet 401 is provided to support the support rod 402 , thereby further improving the stability of the support rod 402 , so that the support rod 402 will not be affected by the movement of the sealing valve core 301 .

[0040] Specifically, a plurality of liquid through holes 403 distributed at equal intervals are formed on the surface of the isolation sheet 401 .

[0041] Through the above technical solution, the liquid through hole 403 is opened on the isolation piece 401 to allow liquid to flow. At the same time, when the valve port is suddenly closed, the impact of the water hammer force generated by the liquid on the sealing valve core 301 can be reduced, thereby extending the service life of the sealing valve core 301.

[0042] The isolation sheet 401 and the support rod 402 mentioned above are both made of magnetically repellent materials.

[0043] During use, by providing two sealing valve cores 301 and enabling the two sealing valve cores 301 to be driven by the electromagnets 2 on both sides respectively, when the long-stroke hydraulic device is working, the two electromagnets 2 respectively control the sealing valve cores 301 on both sides, thereby reducing the working pressure of a single electromagnet 2 and reducing the power required for the electromagnet 2 to work. Moreover, by controlling the electromagnets 2 on both sides to work in different working modes during operation, the mode of changing the fluid circuit can be further improved, thereby reducing the working pressure of the electromagnet 2 and providing more diverse fluid circuit transmission modes.

[0044] By arranging an isolation plate 401 inside the solenoid valve housing 1 to support the support rod 402, and supporting the sealing valve core 301 on both sides through the support rod 402, the sealing valve core 301 is made more stable when moving, and a liquid through hole 403 is opened on the isolation plate 401 to divide the liquid flow. When the solenoid valve is suddenly closed, the impact force of the liquid in the cavity is reduced to protect the sealing valve core 301, thereby achieving the effect of improving the stability and safety of the equipment operation.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A long-stroke hydraulic solenoid valve, comprising a solenoid valve housing (1), electromagnets (2) being mounted on both sides of the solenoid valve housing (1), a movable valve core mechanism (3) being mounted inside the solenoid valve housing (1), manual control components (5) being mounted on both ends of the solenoid valve housing (1), the manual control components (5) being capable of manually adjusting the position of the valve core mechanism (3), and elastic components (6) being mounted on the ends of the valve core mechanism (3) for resetting the valve core mechanism (3) after it loses traction; Its characteristics are: There are two valve core mechanisms (3), and the two valve core mechanisms (3) are respectively located on two sides of the interior of the solenoid valve housing (1) and are respectively controlled by two electromagnets (2); The valve core mechanism (3) comprises a sealing valve core (301), wherein one end of the sealing valve core (301) close to the electromagnet (2) is fixedly connected to an extension rod (302), and the end of the extension rod (302) is fixedly connected to a transmission part (303), and the transmission part (303) is adsorbed by the electromagnet (2).

2. A long-stroke hydraulic solenoid valve according to claim 1, characterized in that: A gap is left between the two sealing valve cores (301), and magnetic isolation is performed between the two sealing valve cores (301).

3. The long-stroke hydraulic solenoid valve according to claim 1, characterized in that: The interior of the solenoid valve housing (1) is also fixedly connected to a supporting and stabilizing structure (4), which separates the sealing valve cores (301) and supports the two sealing valve cores (301).

4. The long-stroke hydraulic solenoid valve according to claim 3, characterized in that: The supporting stabilizing structure (4) includes a supporting rod (402), the supporting rod (402) is installed at the center of the solenoid valve housing (1), a guide hole (304) is opened on the axis of the sealing valve core (301) facing the supporting rod (402), the supporting rod (402) is inserted into the inside of the guide hole (304), and the sealing valve core (301) slides with the support of the supporting rod (402).

5. The long-stroke hydraulic solenoid valve according to claim 4, characterized in that: The supporting stabilizing structure (4) further comprises an isolation plate (401), the outer surface of which is fixedly connected to the inner wall of the solenoid valve housing (1), and the support rods (402) are fixedly connected to the axis on both sides of the isolation plate (401), and the lengths of the support rods (402) on both sides are equal.

6. The long-stroke hydraulic solenoid valve according to claim 5, characterized in that: The surface of the isolation plate (401) is provided with a plurality of liquid through holes (403) distributed at equal intervals.

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