Reversing device for electromagnetic valve

Abstract

The utility model discloses a reversing device for an electromagnetic valve, which relates to the technical field of reversing devices and comprises an electromagnetic device, the bottom end of the electromagnetic device is fixedly connected with a reversing mechanism, two ends of the outer wall of the reversing mechanism are fixedly connected with a group of electromagnetic boxes, and the inside of the reversing mechanism is fixedly connected with a group of corresponding limit springs. The end, away from the electromagnetic box, of the limiting spring is fixedly connected with an abutting piece, the bottom end in the electromagnetic device is fixedly connected with an electromagnetic chip, and the upper surface of the electromagnetic chip is fixedly connected with a water-cooling cold head. By driving the electromagnetic chip, the electromagnetic coil in the electromagnetic box is activated by current, one of the electromagnets moves towards the piston rod, and the collision rod is driven to press the limiting spring and push the piston rod to move towards the other end, so that the oil inlet is communicated with one of the oil outlets; and the piston rod is reset to the central position through the contact piece, so that the device can be used for reversing the oil.

Description

Technical Field

[0001] The utility model relates to the technical field of reversing devices, in particular to a reversing device for a solenoid valve. Background Art

[0002] The reversing device for solenoid valve is a device used to control the direction of fluid flow. It is mainly composed of electromagnet, valve body and valve core. When the electromagnet is energized, a magnetic field is generated to attract the valve core to move, thereby changing the direction of the fluid channel and realizing the on-off or flow change of the fluid. This reversing device has the advantages of simple structure, fast response speed and high reliability. It is widely used in various hydraulic and pneumatic systems and automation equipment. In practical applications, the reversing device for solenoid valve can be selected according to different types and specifications, such as two-position two-way, two-position three-way, three-position five-way, etc. In addition, the movement speed and strength of the valve core can be controlled by adjusting the voltage or current of the electromagnet to meet the needs of different working conditions. In short, the reversing device for solenoid valve is a powerful, flexible and changeable control element, which provides reliable technical support for modern industrial automation.

[0003] At present, the existing reversing device for solenoid valves usually uses an air pump to drive a rotating rod to affect the piston rod, thereby changing the direction of the fluid. Its structure usually does not include parts for resetting the piston rod, resulting in uneven resetting of the reversing device, which may cause failure of the seal between the valve core and the valve seat, which may cause leakage and affect the normal operation of the system. In view of this, we provide a reversing device for a solenoid valve. Utility Model Content

[0004] Technical issues solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a reversing device for a solenoid valve.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reversing device for a solenoid valve, comprising an electromagnetic device, a reversing mechanism fixedly connected to the bottom end of the electromagnetic device, and a group of electromagnetic boxes fixedly connected to the two ends of the outer wall of the reversing mechanism, an active cavity is opened inside the electromagnetic box, and a group of electromagnetic coils are fixedly connected to the upper and lower ends of the electromagnetic box, a group of corresponding limit springs are fixedly connected inside the reversing mechanism, a contact piece is fixedly connected to the end of the limit spring away from the electromagnetic box, an electromagnetic chip is fixedly connected to the bottom end of the electromagnetic device, and a water-cooled cold head is fixedly connected to the upper surface of the electromagnetic chip.

[0008] As a preferred technical solution of the utility model, an electromagnet is slidably connected to the inner center of the electromagnetic box through a movable cavity, and an interference hole is opened at the end of the electromagnetic box away from the reversing mechanism, and a striker is fixedly connected to the outer wall of the end of the electromagnet close to the reversing mechanism, and the striker penetrates the limit spring and the contact plate at the end away from the electromagnet.

[0009] As a preferred technical solution of the utility model, an oil inlet is opened at the center of the bottom surface of the reversing mechanism, and a group of oil outlets are also opened on the bottom surface of the reversing mechanism. The oil outlets are located on both sides of the oil inlet, and the oil outlets and the tops of the oil inlet are interconnected.

[0010] As a preferred technical solution of the utility model, a piston rod is inserted and slidably connected to the inner center of the reversing mechanism, and the two ends of the outer wall of the piston rod are in conflict with the outer wall of the abutment sheet.

[0011] As a preferred technical solution of the utility model, the whole material of the water-cooled cold head is copper plate, and a connecting plate is fixedly connected to the upper surface of the water-cooled cold head, a plurality of oil return grooves are provided on the upper surface of the connecting plate, a water-cooled cover plate is fixedly connected to the top surface of the connecting plate, and a group of oil return holes are provided on the top surface of the water-cooled cover plate, and the oil return grooves penetrate both the top surface of the connecting plate and the bottom surface of the water-cooled cover plate.

[0012] As a preferred technical solution of the utility model, a group of cooling fans are fixedly connected to the top surface of the electromagnetic device, and a group of cooling copper plates are fixedly connected to the lower surface of the cooling fan. A cooling copper tube is fixedly connected to the top of one of the oil return holes, and the top of the cooling copper tube is S-shaped and inserted into the cooling copper plate.

[0013] As a preferred technical solution of the utility model, one of the oil return holes on the top surface of the water-cooled cover plate away from the heat dissipation copper tube is fixedly connected to an oil return pipe, and an oil return pump is fixedly connected between the oil return pipe and the heat dissipation copper tube.

[0014] Beneficial effects:

[0015] Compared with the prior art, the reversing device for a solenoid valve has the following beneficial effects:

[0016] 1. The utility model drives the electromagnetic chip so that the current activates the electromagnetic coil inside the electromagnetic box, moves one of the electromagnets toward the piston rod, and drives the striker rod to compress the limit spring and push the piston rod to the other end, so that the oil inlet is connected to one of the oil outlets. When the device is powered off, due to the elastic characteristics of the limit spring, the piston rod is reset to the center position through the contact piece, so that the device can reverse the oil. When the device is powered off, the internal structure of the device can be used to automatically reset the piston rod, so that the oil inlet and the oil outlet are isolated from each other, avoiding the device from being unable to stop the transmission of oil due to power failure.

[0017] 2. When the temperature of the device is too high, the utility model installs a water-cooled cold head on the surface of the electromagnetic chip, and penetrates the return oil groove to the surface of the water-cooled cold head, so that the coolant directly contacts the surface of the water-cooled cold head, and penetrates the heat dissipation copper tube into the heat dissipation copper plate to transfer the heat to the inside of the heat dissipation copper plate, and discharges the heat through the heat dissipation fan, and returns the cooled coolant to the water-cooled cover plate through the return oil pipe again to cool the device, so that the device can discharge heat to the outside of the device during operation, so as to effectively avoid heat accumulation inside the device, resulting in overheating of the internal temperature of the device, damage to the circuit and the device, and unnecessary danger.

[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a partial cross-sectional front structural schematic diagram of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the water-cooling cover plate of the utility model when it is partially disassembled and viewed from above;

[0022] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the heat dissipation copper tube of the utility model.

[0023] In the figure: 1. electromagnetic device; 2. reversing mechanism; 3. electromagnetic box; 301. electromagnetic coil; 4. movable chamber; 5. limit spring; 501. contact piece; 6. electromagnetic chip; 7. water-cooled cold head; 8. electromagnet; 801. striker; 9. interference hole; 10. oil inlet; 11. oil outlet; 12. piston rod; 13. connecting plate; 14. oil return groove; 15. water-cooled cover plate; 16. oil return hole; 17. cooling fan; 18. cooling copper plate; 19. cooling copper pipe; 20. oil return pipe; 21. oil return pump. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-4As shown, the utility model provides a technical solution: a reversing device for a solenoid valve, comprising an electromagnetic device 1, a reversing mechanism 2 is fixedly connected to the bottom end of the electromagnetic device 1, and a group of electromagnetic boxes 3 are fixedly connected to both ends of the outer wall of the reversing mechanism 2, an active cavity 4 is opened inside the electromagnetic box 3, and a group of electromagnetic coils 301 are fixedly connected to the upper and lower ends of the electromagnetic box 3, a group of corresponding limit springs 5 ​​are fixedly connected to the reversing mechanism 2, and a resistance piece 501 is fixedly connected to one end of the limit spring 5 away from the electromagnetic box 3, an electromagnetic chip 6 is fixedly connected to the bottom end of the electromagnetic device 1, and a water-cooled cold head 7 is fixedly connected to the upper surface of the electromagnetic chip 6.

[0026] like Figure 1-2 As shown, the inner center of the electromagnetic box 3 is slidably connected with the electromagnet 8 through the movable cavity 4, and the electromagnetic box 3 is provided with an interference hole 9 at the end away from the reversing mechanism 2, and the outer wall of the electromagnet 8 close to the reversing mechanism 2 is fixedly connected with a striker 801, and the striker 801 passes through the limit spring 5 and the contact piece 501 at the end away from the electromagnet 8, an oil inlet 10 is provided at the center of the bottom surface of the reversing mechanism 2, and a group of oil outlets 11 are also provided on the bottom surface of the reversing mechanism 2, the oil outlets 11 are located on both sides of the oil inlet 10, and the oil outlets 11 and the tops of the oil inlet 10 are interconnected, a piston rod 12 is inserted and slidably connected to the inner center of the reversing mechanism 2, and the two ends of the outer wall of the piston rod 12 are in contact with the outer wall of the contact piece 501.

[0027] By driving the electromagnetic chip 6, the current activates the electromagnetic coil 301 inside the electromagnetic box 3, moves one of the electromagnets 8 toward the piston rod 12, and drives the impact rod 801 to compress the limit spring 5 and push the piston rod 12 to the other end, so that the oil inlet 10 is connected with one of the oil outlets 11. When the device is powered off, due to the elastic characteristics of the limit spring 5, the piston rod 12 is reset to the center position through the contact piece 501, so that the device can reverse the oil. When the device is powered off, the internal structure of the device can be used to automatically reset the piston rod 12, so that the oil inlet 10 and the oil outlet 11 are isolated from each other, avoiding the device from being unable to stop the transmission of oil due to power failure.

[0028] like Figure 1 , Figure 3 and Figure 4As shown, the water-cooled cold head 7 is made of copper plate as a whole, and a connecting plate 13 is fixedly connected to the upper surface of the water-cooled cold head 7, and a plurality of oil return grooves 14 are provided on the upper surface of the connecting plate 13, and a water-cooled cover plate 15 is fixedly connected to the top surface of the connecting plate 13, and a group of oil return holes 16 are provided on the top surface of the water-cooled cover plate 15, and the oil return grooves 14 penetrate the top surface of the connecting plate 13 and the bottom surface of the water-cooled cover plate 15 at the same time, a group of cooling fans 17 are fixedly connected to the top surface of the electromagnetic device 1, and a group of cooling copper plates 18 are fixedly connected to the lower surface of the cooling fan 17, a cooling copper tube 19 is fixedly connected to the top of one of the oil return holes 16, and the top of the cooling copper tube 19 is S-shaped and inserted into the cooling copper plate 18, and an oil return pipe 20 is fixedly connected to one of the oil return holes 16 on the top surface of the water-cooled cover plate 15 away from the cooling copper tube 19, and an oil return pump 21 is fixedly connected between the oil return pipe 20 and the cooling copper tube 19.

[0029] When the temperature of the device is too high, a water-cooled cold head 7 is installed on the surface of the electromagnetic chip 6, and the return oil groove 14 is penetrated to the surface of the water-cooled cold head 7, so that the coolant directly contacts the surface of the water-cooled cold head 7, and the heat dissipation copper tube 19 is penetrated into the heat dissipation copper plate 18 to transfer the heat to the inside of the heat dissipation copper plate 18, and the heat is discharged by the heat dissipation fan 17, and the cooled coolant is returned to the water-cooled cover plate 15 through the return oil pipe 20 to cool the device, so that the device can discharge heat to the outside of the device during operation, so as to effectively avoid heat accumulation inside the device, causing overheating of the internal temperature of the device, damage to the circuit and the device, and unnecessary danger.

[0030] Working principle: By driving the electromagnetic chip 6, the current activates the electromagnetic coil 301 inside the electromagnetic box 3, moves one of the electromagnets 8 toward the piston rod 12, and drives the impact rod 801 to compress the limit spring 5 and push the piston rod 12 to the other end, so that the oil inlet 10 is connected with one of the oil outlets 11. When the device is powered off, due to the elastic characteristics of the limit spring 5, the piston rod 12 is reset to the center position through the resistance piece 501, so that the device can reverse the oil.

[0031] It should be noted that, in this article, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a connection between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reversing device for a solenoid valve, comprising an electromagnetic device (1), characterized in that: The bottom end of the electromagnetic device (1) is fixedly connected to a reversing mechanism (2), and two ends of the outer wall of the reversing mechanism (2) are fixedly connected to a group of electromagnetic boxes (3), an active cavity (4) is provided inside the electromagnetic box (3), and a group of electromagnetic coils (301) are fixedly connected at the upper and lower ends of the electromagnetic box (3), a group of corresponding limit springs (5) are fixedly connected inside the reversing mechanism (2), and a contact piece (501) is fixedly connected to one end of the limit spring (5) away from the electromagnetic box (3), an electromagnetic chip (6) is fixedly connected to the bottom end of the electromagnetic device (1), and a water-cooled cold head (7) is fixedly connected to the upper surface of the electromagnetic chip (6), an electromagnet (8) is slidably connected to the center of the electromagnetic box (3) through the active cavity (4), and the electromagnet (8) is fixedly connected to the upper surface of the electromagnetic chip (6), and the electromagnet (8) is fixedly connected to the upper surface of the electromagnetic chip (6). An interference hole (9) is provided at one end of the magnetic box (3) away from the reversing mechanism (2); a striker (801) is fixedly connected to the outer wall of one end of the electromagnet (8) close to the reversing mechanism (2); and the striker (801) penetrates the limit spring (5) and the contact plate (501) at one end away from the electromagnet (8); an oil inlet (10) is provided at the center of the bottom surface of the reversing mechanism (2); and a group of oil outlets (11) are also provided at the bottom surface of the reversing mechanism (2); the oil outlets (11) are located on both sides of the oil inlet (10), and the tops of the oil outlets (11) and the oil inlet (10) are interconnected; a piston rod (12) is inserted and slidably connected to the inner center of the reversing mechanism (2), and the two ends of the outer wall of the piston rod (12) are in contact with the outer wall of the contact plate (501).

2. A solenoid valve reversing device according to claim 1, characterized in that: The water-cooled cold head (7) is made of copper plate as a whole, and a connecting plate (13) is fixedly connected to the upper surface of the water-cooled cold head (7), a plurality of oil return grooves (14) are provided on the upper surface of the connecting plate (13), a water-cooled cover plate (15) is fixedly connected to the top surface of the connecting plate (13), and a group of oil return holes (16) are provided on the top surface of the water-cooled cover plate (15), and the oil return grooves (14) simultaneously penetrate the top surface of the connecting plate (13) and the bottom surface of the water-cooled cover plate (15).

3. A solenoid valve reversing device according to claim 1, characterized in that: A group of cooling fans (17) are fixedly connected to the top surface of the electromagnetic device (1), and a group of cooling copper plates (18) are fixedly connected to the bottom surface of the cooling fan (17); a cooling copper tube (19) is fixedly connected to the top of one of the oil return holes (16), and the top of the cooling copper tube (19) is S-shaped and inserted into the cooling copper plate (18).

4. A solenoid valve reversing device according to claim 2, characterized in that: An oil return pipe (20) is fixedly connected to one of the oil return holes (16) on the top surface of the water-cooling cover plate (15) away from the heat dissipation copper tube (19), and an oil return pump (21) is fixedly connected between the oil return pipe (20) and the heat dissipation copper tube (19).

Images