Adjustable electromagnetic valve capable of preventing leakage inside and outside

Abstract

The utility model relates to electric power. The adjustable electromagnetic valve comprises a valve shell, a stop block is fixedly connected to the bottom wall of the valve shell, a valve seat is fixedly connected to the upper side of the valve shell and communicates with the interior of the valve shell, the outer surface of the valve seat is fixedly sleeved with an electromagnetic coil block, and a fixed iron core is fixedly connected to the top wall of the valve seat; a movable iron core is arranged in the valve shell, the upper end of the movable iron core extends into the valve seat, the lower end of the movable iron core is fixedly connected with a valve element, the valve element makes contact with the upper side of the check block, a spring is fixedly connected to the lower side of the fixed iron core, and the lower end of the spring is fixedly connected with the upper side of the movable iron core. Through the mode, the flow can be adjusted without installing other devices of the throttling valve, so that redundant devices do not need to be installed when the electromagnetic valve is used, the use cost of the electromagnetic valve is reduced, and the reliability of the electromagnetic valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power and magnetic force, in particular to an adjustable electromagnetic valve with internal and external leakage prevention. Background Art

[0002] Solenoid valves are industrial equipment controlled by electromagnetics. They are basic automation components used to control fluids. They are actuators and are not limited to hydraulics or pneumatics. They are used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, and the control accuracy and flexibility can be guaranteed.

[0003] The interior of the solenoid valve mostly passes through media such as gas and liquid. In order to ensure that the solenoid valve can work normally, a sealing gasket is usually provided on the solenoid valve to prevent leakage when the solenoid valve is working. However, the solenoid valve basically controls the flow by moving the internal valve core. After the solenoid valve is energized, the electromagnetic force pulls the valve core upward, and then the solenoid valve opens, and the internal medium can pass through. After the power is cut off, there is no electromagnetic force pulling, and the valve core begins to reset downward. After the valve core is reset, the solenoid valve will be closed. The movement of the valve core is set during production, so the flow of the solenoid valve is fixed, and the user cannot adjust it by himself. If the flow needs to be adjusted, other devices such as throttle valves need to be installed to achieve it, which increases the cost of use and reduces reliability. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides an adjustable solenoid valve with internal and external leakage prevention, which has the function of adjusting the flow rate without installing other devices such as a throttle valve, thereby eliminating the need to install additional devices when using the solenoid valve, thereby reducing the cost of using the solenoid valve and improving its reliability.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an adjustable solenoid valve with internal and external leakage prevention, comprising a valve housing, a block fixedly connected to the bottom wall of the valve housing, an adjustment mechanism provided inside the valve housing, and the flow rate inside the valve housing being adjustable by the adjustment mechanism;

[0008] The adjusting mechanism comprises a spring, an adjusting plate, a rotating rod, a transmission groove, a worm wheel, a worm, a transmission rod and a control handle.

[0009] Preferably, the front side and the rear side of the valve housing are both fixedly connected with connecting pipes, and the valve housing and the interiors of the two connecting pipes are connected;

[0010] The outer surfaces of the two connecting pipes are fixedly sleeved with flanges, and the two connecting pipes are fixedly connected with sealing gaskets when they move away from each other;

[0011] The upper side of the valve housing is fixedly connected with a valve seat, and the valve seat is communicated with the interior of the valve housing.

[0012] Preferably, an electromagnetic coil block is fixedly sleeved on the outer surface of the valve seat, and a fixed iron core is fixedly connected to the top wall of the valve seat;

[0013] A movable iron core is provided inside the valve housing, the upper end of the movable iron core extends into the interior of the valve seat, the lower end of the movable iron core is fixedly connected to the valve core, and the valve core contacts the upper side of the stopper;

[0014] The spring is fixedly connected to the lower side of the fixed iron core, and the lower end of the spring is fixedly connected to the upper side of the movable iron core.

[0015] Preferably, the regulating plate is arranged inside the valve housing, the regulating plate is arranged in front of the stopper, and the regulating plate contacts the front wall of the valve housing and the front side of the stopper;

[0016] The left side and the right side of the regulating plate are both semi-cylindrical, the rotating rod is rotatably connected to the front wall of the valve shell, and the rear end of the rotating rod passes through the regulating plate.

[0017] Preferably, the rotating rod is fixedly connected to the adjustment plate, the transmission groove is provided inside the stopper, and the rear end of the rotating rod rotates and extends into the transmission groove;

[0018] The rear end of the rotating rod is rotatably connected to the rear wall of the transmission groove, and the worm gear is fixedly sleeved on the outer surface of the rotating rod.

[0019] Preferably, the worm wheel is arranged inside the transmission groove, the worm is rotatably connected to the top wall of the transmission groove, the worm is arranged on the left side of the worm wheel, and the worm is meshed with the worm wheel;

[0020] The transmission rod is fixedly connected to the lower end of the worm, the lower end of the transmission rod rotates and extends out of the lower side of the valve housing, and the control handle is fixedly connected to the lower end of the transmission rod.

[0021] (3) Beneficial effects

[0022] Compared with the prior art, the present invention provides an adjustable solenoid valve with internal and external leakage prevention, which has the following beneficial effects:

[0023] (1) The internal and external anti-leakage adjustable solenoid valve is a valve that can be adjusted. When the control handle is turned, the control handle drives the transmission rod to rotate synchronously. After the transmission, the adjustment plate begins to rotate, and then the opening amplitude of the adjustment plate begins to change, and then the flow through the solenoid valve begins to change. Because the left and right sides of the adjustment plate are both semi-cylindrical, the adjustment plate will not conflict with the left and right walls of the valve housing when it rotates. In this way, the flow can be adjusted without installing other devices of the throttle valve, so that no extra devices need to be installed when using the solenoid valve, thereby reducing the cost of using the solenoid valve and improving its reliability.

[0024] (2) The internal and external leakage-proof adjustable solenoid valve has a self-locking transmission between the worm wheel and the worm. Therefore, after the flow adjustment is completed, the adjustment plate will not rotate due to the impact of the medium inside the solenoid valve, thereby ensuring the stability of the adjustment mechanism during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of an adjustable solenoid valve with internal and external leakage prevention according to the utility model;

[0026] Figure 2 This is a schematic diagram of the internal connection structure of the valve housing of the utility model;

[0027] Figure 3 for Figure 2 A magnified schematic diagram of .

[0028] In the figure: 1. Valve housing; 2. Connecting pipe; 3. Flange; 4. Sealing gasket; 5. Stopper; 6. Valve seat; 7. Solenoid coil block; 8. Fixed iron core; 9. Movable iron core; 10. Valve core; 11. Spring; 12. Adjustment plate; 13. Rotating rod; 14. Transmission groove; 15. Worm gear; 16. Worm; 17. Transmission rod; 18. Control handle. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figures 1 to 3The utility model provides a new technical solution: an adjustable solenoid valve with internal and external leakage prevention, comprising a valve housing 1, the front and rear sides of the valve housing 1 are fixedly connected to connecting pipes 2, the valve housing 1 and the interiors of the two connecting pipes 2 are connected, the outer surfaces of the two connecting pipes 2 are fixedly sleeved with flanges 3, the two connecting pipes 2 are fixedly connected to sealing gaskets 4 when they move away from each other, a stopper 5 is fixedly connected to the bottom wall of the valve housing 1, a valve seat 6 is fixedly connected to the upper side of the valve housing 1, the valve seat 6 is connected to the interior of the valve housing 1, and the outer surface of the valve seat 6 is fixedly sleeved. There is an electromagnetic coil block 7, a fixed iron core 8 is fixedly connected to the top wall of the valve seat 6, a movable iron core 9 is provided inside the valve housing 1, the upper end of the movable iron core 9 extends into the interior of the valve seat 6, and the lower end of the movable iron core 9 is fixedly connected to a valve core 10, and the valve core 10 is in contact with the upper side of the stopper 5. An adjusting mechanism is provided inside the valve housing 1, and the flow inside the valve housing 1 can be adjusted by the adjusting mechanism. The adjusting mechanism includes a spring 11, an adjusting plate 12, a rotating rod 13, a transmission groove 14, a worm gear 15, a worm 16, a transmission rod 17 and a control handle 18.

[0031] Furthermore, the spring 11 is fixedly connected to the lower side of the fixed iron core 8, the lower end of the spring 11 is fixedly connected to the upper side of the movable iron core 9, the adjusting plate 12 is arranged inside the valve housing 1, the adjusting plate 12 is arranged on the front side of the stopper 5, the adjusting plate 12 is in contact with the front wall of the valve housing 1 and the front side of the stopper 5, the left and right sides of the adjusting plate 12 are both semi-cylindrical, the rotating rod 13 is rotatably connected to the front wall of the valve housing 1, the rear end of the rotating rod 13 passes through the adjusting plate 12, the rotating rod 13 is fixedly connected to the adjusting plate 12, the transmission groove 14 is opened inside the stopper 5, the rotating rod The rear end of 13 rotates and extends into the interior of the transmission groove 14, the rear end of the rotating rod 13 is rotatably connected to the rear wall of the transmission groove 14, the worm gear 15 is fixedly sleeved on the outer surface of the rotating rod 13, the worm gear 15 is arranged inside the transmission groove 14, the worm 16 is rotatably connected to the top wall of the transmission groove 14, the worm 16 is arranged on the left side of the worm gear 15, the worm 16 is meshed with the worm gear 15, the transmission rod 17 is fixedly connected to the lower end of the worm 16, the lower end of the transmission rod 17 rotates and extends out of the lower side of the valve housing 1, and the control handle 18 is fixedly connected to the lower end of the transmission rod 17.

[0032] When starting to work, when installing the solenoid valve, the solenoid valve is connected to the infusion pipeline through two connecting pipes 2. The sealing gasket 4 can prevent the solenoid valve from leaking. When using the solenoid valve, the solenoid coil block 7 is energized, and then the solenoid coil block 7 will adsorb the movable iron core 9 and move it upward, and then the movable iron core 9 will move toward the inside of the valve seat 6. At this time, the spring 11 begins to become compressed, and the movable iron core 9 will drive the two valve cores 10 to move upward, and then the blocking state between the valve core 10 and the block 5 is released, and then the medium can pass through the solenoid valve. After the solenoid coil block 7 is powered off, the solenoid coil block 7 releases the adsorption state of the movable iron core 9. According to the above, the spring 11 will begin to reset, and then the valve core 10 will move downward, and then the valve core 10 will adapt to the block 5 to form a blockage.

[0033] When the flow of the solenoid valve needs to be adjusted, the user rotates the control handle 18, and the control handle 18 drives the transmission rod 17 to rotate synchronously, and then the transmission rod 17 drives the worm 16 to start rotating synchronously, and the worm 16 drives the meshing worm gear 15 to rotate, and the worm gear 15 drives the rotating rod 13 to rotate synchronously, and the rotating rod 13 drives the adjusting plate 12 to start rotating synchronously, and then the opening amplitude of the adjusting plate 12 will begin to change, and then the flow through the solenoid valve will begin to change. Because the left and right sides of the adjusting plate 12 are both semi-cylindrical, the adjusting plate 12 will not conflict with the left and right walls of the valve housing 1 when rotating. At the same time, because the transmission between the worm gear 15 and the worm 16 is self-locking, after the flow adjustment is completed, the adjusting plate 12 will not rotate due to the impact of the medium inside the solenoid valve, thereby ensuring the stability of the adjustment mechanism during operation. In this way, the flow can be adjusted without installing other devices of the throttle valve, thereby eliminating the need to install redundant devices when using the solenoid valve, thereby reducing the cost of using the solenoid valve and improving reliability.

[0034] Working principle: When starting to work, when installing the solenoid valve, the solenoid valve is connected to the infusion pipeline through two connecting pipes 2. The sealing gasket 4 can prevent the solenoid valve from leaking. When using the solenoid valve, the electromagnetic coil block 7 is energized, and then the electromagnetic coil block 7 will adsorb the movable iron core 9 and move it upward, and then the movable iron core 9 will move toward the inside of the valve seat 6. At this time, the spring 11 begins to become compressed, and the movable iron core 9 will drive the two valve cores 10 to move upward, and then the blocking state between the valve core 10 and the block 5 is released, and then the medium can pass through the solenoid valve. After the electromagnetic coil block 7 is powered off, the electromagnetic coil block 7 releases the adsorption state of the movable iron core 9. According to the above, the spring 11 will begin to reset, and then the valve core 10 will move downward, and then the valve core 10 will adapt to the block 5 to form a blockage.

[0035] When the flow of the solenoid valve needs to be adjusted, the user turns the control handle 18, and the control handle 18 drives the transmission rod 17 to rotate synchronously, and then the transmission rod 17 drives the worm 16 to start rotating synchronously, and the worm 16 drives the meshing worm gear 15 to rotate, and the worm gear 15 drives the rotating rod 13 to rotate synchronously, and the rotating rod 13 drives the adjusting plate 12 to start rotating synchronously, and then the opening amplitude of the adjusting plate 12 will begin to change, and then the flow through the solenoid valve will begin to change. Because the left and right sides of the adjusting plate 12 are both semi-cylindrical, the adjusting plate 12 will not conflict with the left and right walls of the valve housing 1 when rotating. At the same time, because the transmission between the worm gear 15 and the worm 16 is self-locking, after the flow adjustment is completed, the adjusting plate 12 will not rotate due to the impact of the medium inside the solenoid valve, thereby ensuring the stability of the adjusting mechanism during operation.

[0036] 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. An adjustable solenoid valve with internal and external leakage prevention, comprising a valve housing (1), a stopper (5) fixedly connected to the bottom wall of the valve housing (1), characterized in that: An adjusting mechanism is provided inside the valve housing (1), and the flow rate inside the valve housing (1) can be adjusted by the adjusting mechanism; The regulating mechanism comprises a spring (11), an regulating plate (12), a rotating rod (13), a transmission groove (14), a worm wheel (15), a worm (16), a transmission rod (17) and a control handle (18).

2. The adjustable solenoid valve with internal and external leakage prevention according to claim 1, characterized in that: The front side and the rear side of the valve housing (1) are both fixedly connected to connecting pipes (2), and the interiors of the valve housing (1) and the two connecting pipes (2) are communicated; The outer surfaces of the two connecting pipes (2) are both fixedly sleeved with flanges (3), and the two connecting pipes (2) are both fixedly connected with sealing gaskets (4) when they move away from each other; The upper side of the valve housing (1) is fixedly connected with a valve seat (6), and the valve seat (6) is communicated with the interior of the valve housing (1).

3. The adjustable solenoid valve with internal and external leakage prevention according to claim 2, characterized in that: An electromagnetic coil block (7) is fixedly sleeved on the outer surface of the valve seat (6), and a fixed iron core (8) is fixedly connected to the top wall of the valve seat (6); A movable iron core (9) is provided inside the valve housing (1), the upper end of the movable iron core (9) extends into the interior of the valve seat (6), the lower end of the movable iron core (9) is fixedly connected to a valve core (10), and the valve core (10) contacts the upper side of the stopper (5); The spring (11) is fixedly connected to the lower side of the fixed iron core (8), and the lower end of the spring (11) is fixedly connected to the upper side of the movable iron core (9).

4. The adjustable solenoid valve with internal and external leakage prevention according to claim 1, characterized in that: The regulating plate (12) is arranged inside the valve housing (1), the regulating plate (12) is arranged on the front side of the stopper (5), and the regulating plate (12) is in contact with the front wall of the valve housing (1) and the front side of the stopper (5); The left and right sides of the regulating plate (12) are both semi-cylindrical. The rotating rod (13) is rotatably connected to the front wall of the valve housing (1), and the rear end of the rotating rod (13) passes through the regulating plate (12).

5. The adjustable solenoid valve with internal and external leakage prevention according to claim 4, characterized in that: The rotating rod (13) is fixedly connected to the adjusting plate (12), the transmission groove (14) is opened inside the stopper (5), and the rear end of the rotating rod (13) rotates and extends into the transmission groove (14); The rear end of the rotating rod (13) is rotatably connected to the rear wall of the transmission groove (14), and the worm gear (15) is fixedly sleeved on the outer surface of the rotating rod (13).

6. The adjustable solenoid valve with internal and external leakage prevention according to claim 5, characterized in that: The worm wheel (15) is arranged inside the transmission groove (14), the worm (16) is rotatably connected to the top wall of the transmission groove (14), the worm (16) is arranged on the left side of the worm wheel (15), and the worm (16) is meshed with the worm wheel (15); The transmission rod (17) is fixedly connected to the lower end of the worm (16), and the lower end of the transmission rod (17) rotates and extends out of the lower side of the valve housing (1). The control handle (18) is fixedly connected to the lower end of the transmission rod (17).

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