Two-position two-way two-way cut-off plug-in high-pressure electromagnetic ball valve
The two-way shut-off insert-type electromagnetic valve addresses high-pressure and high-flow challenges by using a differential pressure control mechanism and robust magnetic structure, ensuring reliable operation and connection in hydraulic systems.
Patent Information
- Application Number
- CN202422299314.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The existing plug-in solenoid ball valve has a simple structure and cannot meet the needs of high pressure and high flow. It is not resistant to high pressure, has limited power limits, and lacks sealing and reliability.
A two-position two-way bidirectional cut-off plug-in high-pressure solenoid ball valve is designed to achieve high-pressure and high-flow opening and closing through valve core pilot oil circuit and pressure differential control. The solenoid magnet conductor structure is used to improve pressure resistance and enhance connection stability with the sealing structure.
It realizes high-pressure and high-flow hydraulic conditions, has good sealing and easy operation, and improves the reliability and power limit of the device.
Smart Images
Figure CN223105350U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic machinery, in particular to a cartridge-type high-pressure electromagnetic ball valve with two-position two-way cut-off. Background Technique
[0002] With the integrated design of hydraulic equipment, the demand for miniaturization of hydraulic components increases. As an important switching element in the hydraulic system, the demand for the use conditions of high pressure and high flow rate of the electromagnetic ball valve is also increasing. The commonly used cartridge-type electromagnetic ball valve at present has a simple structure, and the magnetic conduction tube is mostly brazing process. This structure is not resistant to high pressure and cannot meet the use requirements of high-pressure conditions of 315 bar. Moreover, the switching structure is simple and cannot achieve the use of high pressure and large flow rate, and the power limit is greatly restricted, and the reliability is not high. Content of the Utility Model
[0003] The purpose of the utility model is to provide a cartridge-type high-pressure electromagnetic ball valve with two-position two-way cut-off to solve the problems raised in the above background technique.
[0004] To achieve the above purpose, the utility model provides the following technical solution: a cartridge-type high-pressure electromagnetic ball valve with two-position two-way cut-off, including a main valve sleeve, an interface one is arranged at the bottom of the main valve sleeve, an interface two is arranged on the side wall at the bottom end of the main valve sleeve, a main valve core is arranged inside the main valve sleeve, a sealing steel ball one, a sealing steel ball two, a sealing steel ball three and a sealing steel ball four are arranged inside the main valve core, an upper oil cavity is arranged above the main valve core, a moving iron is arranged above the upper oil cavity, a needle valve core is arranged inside the moving iron, the needle valve core is connected with a first return spring and a second return spring, the moving iron is located inside the electromagnetic conduction tube, and a static iron is arranged above the moving iron.
[0005] Preferably, the interface one is connected with a mating interface, the mating interface is inserted into the interface one, a retaining ring is arranged on the outer side wall of the mating interface, a sealing groove is opened on the outer side wall at the upper end of the mating interface, a connecting piece is sleeved outside the mating interface, and the upper end of the connecting piece is sleeved outside the interface one and is connected with the outer wall of the interface one through thread fit.
[0006] Preferably, the connecting piece is rotatably sleeved on the mating interface, and the aperture at the bottom end of the connecting piece is smaller than the outer diameter of the retaining ring.
[0007] Preferably, a convex ring is arranged outside the interface one, a cavity is arranged inside the convex ring, an air storage bag is arranged in the cavity, the air storage bag is connected with a pushing piece, an inner groove is opened on the inner side wall of the interface one, the inner groove is aligned with the sealing groove, and a sealing air bag is arranged in the inner groove, and the sealing air bag is communicated with the air storage bag.
[0008] Preferably, the pushing member includes a T-shaped block inserted into the cavity. The upper end of the T-shaped block is connected to the air storage bag, and a ring is fixedly connected to the lower end of the T-shaped block, and the ring abuts against the top end of the connecting member.
[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0010] An inserted high-pressure electromagnetic ball valve with two-position two-way cut-off proposed by the present utility model can be used in hydraulic working conditions with high pressure and large flow through the design of the pilot oil circuit of the spool and the opening and closing of the spool controlled by the pressure difference. Moreover, this device is convenient to operate and has good sealing performance when connected to other equipment. Description of the Drawings
[0011] Figure 1 It is a schematic structural diagram of the device of the present utility model.
[0012] Figure 2 It is a side view of the bottom of the main spool of the present utility model.
[0013] Figure 3 It is a connection structure diagram of the first interface and the mating interface of the present utility model.
[0014] In the figure: main valve sleeve 1, main spool 2, first sealing steel ball 3, second sealing steel ball 4, third sealing steel ball 5, needle spool 6, first return spring 7, moving iron 8, second return spring 9, fourth sealing steel ball 10, electromagnet magnetic conduction tube 11, upper oil cavity 12, static iron 13, first interface 14, second interface 15, mating interface 16, retaining ring 1601, sealing groove 1602, connecting member 17, convex ring 18, air storage bag 19, pushing member 20, sealing air bag 21. Specific Embodiments
[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0016] Please refer to Figures 1 to 3, the present utility model provides a technical solution: a cartridge-type high-pressure electromagnetic ball valve with two-position two-way shut-off, including a main valve sleeve 1. A control part is connected to the top of the main valve sleeve 1, and the control part is connected to the outside through a wire for controlling the valve. The internal structure is common knowledge in the art and will not be described in detail here. An interface one 14 is provided at the bottom of the main valve sleeve 1, and an interface two 15 is provided on the side wall at the bottom end of the main valve sleeve 1. A main valve core 2 is arranged inside the main valve sleeve 1, and a sealing steel ball one 3, a sealing steel ball two 4, a sealing steel ball three 5, and a sealing steel ball four 10 are arranged inside the main valve core 2. An upper oil cavity 12 is arranged above the main valve core 2, and a moving iron 8 is arranged above the upper oil cavity 12. A needle valve core 6 is arranged inside the moving iron 8, and the needle valve core 6 is connected with a first return spring 7 and a second return spring 7. The moving iron 8 is located inside an electromagnet magnetic conduction tube 11, and a static iron 13 is arranged above the moving iron 8.
[0017] The interface one 14 is connected with an adapter interface 16. The adapter interface 16 is inserted into the inside of the interface one 14. A retaining ring 1601 is arranged on the outer side wall of the adapter interface 16, and a sealing groove 1602 is opened on the outer side wall at the upper end of the adapter interface 16. A connecting piece 17 is sleeved outside the adapter interface 16. The upper end of the connecting piece 17 is sleeved outside the interface one 14 and is connected with the outer wall of the interface one 14 through threaded cooperation. The connecting piece 17 is rotatably sleeved on the adapter interface 16, and the aperture at the bottom end of the connecting piece 17 is smaller than the outer diameter of the retaining ring 1601. A convex ring 18 is arranged outside the interface one 14, a cavity is arranged inside the convex ring 18, an air storage bag 19 is arranged in the cavity, the air storage bag 19 is connected with a pushing member 20. The pushing member 20 includes a T-shaped block inserted into the cavity. The upper end of the T-shaped block is connected with the air storage bag 19, and the lower end of the T-shaped block is fixedly connected with a ring, and the ring abuts against the top end of the connecting piece 17. An inner groove is opened on the inner side wall of the interface one 14, the inner groove is aligned with the sealing groove 1602, and a sealing air bag 21 is arranged in the inner groove. The sealing air bag 21 is communicated with the air storage bag 19.
[0018] In actual use, first connect this device to hydraulic machinery and equipment, that is, connect interface one 14 and interface two 15 to external interfaces. In this solution, only the connection method of interface one 14 is given, and interface two 15 can also be connected in the same way. When connecting, insert the mating interface 16 into the inside of interface one 14. The shape of the mating interface 16 just fits the inside of interface one 14. Then screw the connecting piece 17 onto the outer wall of interface one 14. The connecting piece 17 rises to push the retaining ring 1601, so that the mating interface 16 rises and only inserts into interface one 14 and is firmly connected to interface one 14. When the connecting piece 17 rises, the pushing piece 20 can be pushed upward, thereby compressing the air storage bag 19. The air inside the air storage bag 19 enters the sealing air bag 21, and the sealing air bag 21 expands and enters the sealing groove 1602, which can greatly increase the tightness of the connection between interface one 14 and the mating interface 16. After the connection is completed, when the valve needs to be closed during use, the solenoid valve needs to be de-energized. The first return spring 7 and the second return spring 7 press the main spool 2 against the oil sealing port. When the oil enters from interface one 14, the oil opens the sealing steel ball two 4 from the pilot oil port. At this time, the upper oil chamber 12 is pressurized, and the sealing steel ball three 5 is sealed in the pilot hole of the main spool 2 under the action of the oil. Due to the action of the area difference between the upper and lower parts of the main spool 2, the main spool 2 is pressed by the pressure in the upper oil chamber 12 against the oil sealing port of the main valve sleeve 1, so that the connection between interface one 14 and interface two 15 can be closed, that is, the valve is in a closed state; when the valve needs to be opened, the electromagnet in the valve needs to be energized, the moving iron 8 and the static iron 13 attract each other, so that the needle spool 6 rises. When the oil enters interface one 14, the oil opens the sealing steel ball two 4 and the sealing steel ball four 10 through the damping hole to release pressure to interface two 15. Since there is no pressure in the upper oil chamber 12, the main spool 2 can rise and open, and the oil flows from interface one 14 to interface two 15, so that the valve is opened. The design of the pilot oil circuit of the present utility model and the characteristic of controlling the opening and closing of the spool through the pressure difference can greatly improve the power limit of the valve, and can still normally reverse under the hydraulic conditions of high pressure and large flow; the electromagnetic guide tube clamping structure can improve the tolerance of the magnetic tube and can meet the use under high pressure conditions.
[0019] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A cartridge-type high-pressure electromagnetic ball valve with two-position two-way shut-off, comprising a main valve sleeve (1), characterized in that: An interface one (14) is provided at the bottom of the main valve sleeve (1), an interface two (15) is provided on the side wall at the bottom end of the main valve sleeve (1), a main valve core (2) is arranged inside the main valve sleeve (1), a sealing steel ball one (3), a sealing steel ball two (4), a sealing steel ball three (5) and a sealing steel ball four (10) are arranged inside the main valve core (2), an upper oil cavity (12) is provided above the main valve core (2), a moving iron (8) is arranged above the upper oil cavity (12), a needle valve core (6) is arranged inside the moving iron (8), the needle valve core (6) is connected with a first return spring (7) and a second return spring (7), the moving iron (8) is located inside an electromagnet magnetic conduction tube (11), and a static iron (13) is arranged above the moving iron (8).
2. The cartridge type high-pressure electromagnetic ball valve with two-position two-way shut-off according to claim 1, characterized in that: The interface one (14) is connected with an adapter (16), the adapter (16) is inserted into the interface one (14), a retaining ring (1601) is arranged on the outer side wall of the adapter (16), a sealing groove (1602) is formed on the outer side wall at the upper end of the adapter (16), a connecting piece (17) is sleeved outside the adapter (16), and the upper end of the connecting piece (17) is sleeved outside the interface one (14) and is connected with the outer wall of the interface one (14) through thread fit.
3. The cartridge-type high-pressure electromagnetic ball valve with two-position two-way shut-off according to claim 2, characterized in that: The connecting piece (17) is rotatably sleeved on the adapter (16), and the aperture at the bottom end of the connecting piece (17) is smaller than the outer diameter of the retaining ring (1601).
4. The cartridge type high-pressure electromagnetic ball valve with two-position two-way shut-off according to claim 1, characterized in that: A convex ring (18) is arranged outside the interface one (14), a cavity is arranged inside the convex ring (18), an air storage bag (19) is arranged in the cavity, the air storage bag (19) is connected with a pushing member (20), an inner groove is formed on the inner side wall of the interface one (14), the inner groove is aligned with the sealing groove (1602), and a sealing air bag (21) is arranged in the inner groove. The sealing air bag (21) is communicated with the air storage bag (19).
5. The cartridge type high-pressure electromagnetic ball valve with two-position two-way shut-off according to claim 4, characterized in that: The pushing member (20) includes a T-shaped block inserted into the cavity. The upper end of the T-shaped block is connected with the air storage bag (19), and the lower end of the T-shaped block is fixedly connected with a ring, and the ring abuts against the top end of the connecting piece (17).