Combined anti-siphon pressure-reducing electromagnetic valve

Abstract

The utility model relates to the technical field of electromagnetic valves, in particular to a combined anti-siphon pressure-reducing electromagnetic valve which comprises a pressure-reducing electromagnetic valve body and an anti-siphon assembly connected with the pressure-reducing electromagnetic valve body, the anti-siphon assembly comprises a flow channel connector and an air suction connector connected with the flow channel connector, the flow channel connector is provided with a water inlet, and the air suction connector is provided with a water outlet. The air suction connector is provided with a water outlet and an air suction port, a reverse flow core is arranged at the position, corresponding to the air suction port, in the air suction connector in a sliding mode, and the reverse flow core has a first state enabling the water inlet and the water outlet to be communicated and a second state enabling the water inlet and the water outlet to be blocked. The anti-siphon component is additionally arranged on the basis of the pressure-reducing electromagnetic valve, so that the backflow of a flow channel is prevented, and the normal work of the electromagnetic valve is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to solenoid valve technical field especially is related to a combined type anti-siphon pressure reducing solenoid valve. BACKGROUND

[0002] Solenoid valve is the industrial equipment controlled by electromagnetism, is the automation basic element for controlling fluid, belongs to actuator, and is not limited to hydraulic pressure, pneumatic. And pressure reducing solenoid valve is a kind of solenoid valve that can ensure that import pressure is not too high, and proper pressure reduction can ensure that solenoid valve works under stable pressure environment, improves its reliability and life.

[0003] But this pressure reducing solenoid valve usually does not have the function of anti-siphon, and siphon phenomenon can make flow channel reverse flow, cause the fluid in flow channel to be chaotic, pollute water source, and there is the possibility to cause equipment damage, influence solenoid valve normal work, so a pressure reducing solenoid valve capable of preventing siphon is needed. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the shortcomings and deficiencies of prior art, and provides a combined type anti-siphon pressure reducing solenoid valve, the utility model is equipped with anti-siphon assembly on the basis of pressure reducing solenoid valve, prevents flow channel reverse flow, guarantees the normal work of solenoid valve.

[0005] The technical scheme adopted by the utility model is as follows: a combined type anti-siphon pressure reducing solenoid valve, including pressure reducing solenoid valve main body and the anti-siphon assembly connected with pressure reducing solenoid valve main body, the anti-siphon assembly includes flow channel joint and the air suction joint connected with flow channel joint, the flow channel joint is opened with water inlet, the air suction joint is opened with water outlet and air suction port, the air suction joint inside corresponding air suction port position is slidably provided with reverse flow core, the reverse flow core has the first state of making water inlet and water outlet communicate and the second state of making water inlet and water outlet block.

[0006] The inner wall of the air suction port is evenly distributed with at least two connecting ribs in the circumferential direction, and the connecting ribs are formed with air holes connected with the outside world between each two connecting ribs, and the connecting ribs are formed with a sliding part for sliding connection of the reverse flow core.

[0007] The anti-siphon assembly further includes a protective cover, and each connecting rib extends to the outside of the air suction joint and is connected with the protective cover.

[0008] The flow channel joint and the air suction joint are further provided with a flow groove at one end, and when the reverse flow core is in the second state, the water inlet can also communicate with the water outlet through the flow groove.

[0009] The end of the air suction joint corresponding to the water outlet is in a cylindrical shape.

[0010] The outer edge of the flow channel connector away from the intake connector has at least two protruding posts. The side wall of the pressure reducing solenoid valve body has at least two L-shaped grooves for the two protruding posts to slide into and engage. The flow channel connector and the pressure reducing solenoid valve body are detachably connected through the two protruding posts and the two L-shaped grooves.

[0011] The flow channel connector and the air intake connector are detachably connected by a pin. The side wall of the air intake connector has a hole for the pin to be inserted, and the side wall of the flow channel connector has a slot for the pin to be engaged. When the pin is inserted into the hole and engaged with the slot at the same time, the flow channel connector and the air intake connector are fixedly connected.

[0012] The pin is U-shaped, and the side wall of the air intake connector has two insertion holes for the two ends of the pin to be inserted into. The slot is annular.

[0013] Sealing rings are provided between the flow channel connector and the body of the pressure reducing solenoid valve, as well as between the flow channel connector and the intake connector.

[0014] The beneficial effects of this utility model are as follows: This utility model adds an anti-siphon component to the pressure reducing solenoid valve, namely, an anti-siphon component composed of a flow channel connector and an air intake connector. The anti-siphon component is connected or blocked by a counterflow core that slides inside the air intake connector. The sliding direction of the counterflow core is controlled by the air intake volume of the air intake. When the kinetic energy of the fluid medium at the inlet is less than the kinetic energy of the air at the air intake, the counterflow core blocks the inlet and outlet, preventing the fluid medium from flowing back from the outlet to the inlet, preventing fluid chaos in the flow channel, avoiding water source pollution, reducing the risk of equipment damage, and ensuring the normal operation of the solenoid valve. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0016] Figure 1 This is a schematic diagram of the structure of a combined anti-siphon pressure reducing solenoid valve according to the present invention;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is an exploded view of the present invention;

[0019] Figure 4 This is an explosion diagram of the anti-siphon component in this utility model;

[0020] Figure 5 This is a cross-sectional schematic diagram of the anti-siphon component in this utility model;

[0021] Figure 6 for Figure 5 A cross-sectional view showing the removal of the flow channel connector and the counterflow core;

[0022] In the diagram, 1-pressure reducing solenoid valve body, 2-flow channel connector, 3-air intake connector, 4-water inlet, 5-water outlet, 6-air intake, 7-reverse flow core, 8-connecting rib, 9-air hole, 10-sliding part, 11-protective cover, 12-flow groove, 13-protrusion, 14-L-shaped groove, 15-pin, 16-insertion hole, 17-slot, 18-sealing ring. Detailed Implementation

[0023] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0024] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0025] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0026] like Figures 1 to 6 As shown, this is an embodiment of the present invention. A combined anti-siphon pressure reducing solenoid valve includes a pressure reducing solenoid valve body 1 and an anti-siphon assembly connected to the pressure reducing solenoid valve body 1. The anti-siphon assembly includes a flow channel connector 2 and an air intake connector 3 connected to the flow channel connector 2. The flow channel connector 2 has an inlet 4, and the air intake connector 3 has an outlet 5 and an air intake 6. A counterflow core 7 is slidably arranged inside the air intake connector 3 at a position corresponding to the air intake 6. The counterflow core 7 has a first state that connects the inlet 4 and the outlet 5 and a second state that blocks the inlet 4 and the outlet 5.

[0027] The beneficial effects of this design are as follows: This utility model adds an anti-siphon component to the pressure reducing solenoid valve, namely, an anti-siphon component composed of a flow channel connector and an air intake connector. The inlet and outlet are connected or blocked by a counterflow core that slides inside the air intake connector. The sliding direction of the counterflow core is controlled by the air intake volume of the air intake. When the kinetic energy of the fluid medium at the inlet is less than the kinetic energy of the air at the air intake, the counterflow core blocks the inlet and outlet, preventing the fluid medium from flowing back from the outlet to the inlet, preventing fluid turbulence in the flow channel, avoiding water source pollution, reducing the risk of equipment damage, and ensuring the normal operation of the solenoid valve.

[0028] Furthermore, the inner wall of the air intake 6 is evenly distributed with at least two connecting ribs 8 along the circumference, and an air hole 9 communicating with the outside is formed between each pair of connecting ribs 8. At least two connecting ribs 8 surround to form a sliding part 10 for sliding connection of the counterflow core 7.

[0029] The beneficial effects of this design are as follows: setting at least two connecting ribs to cooperate with the counterflow core, and the air holes between the connecting ribs can increase the air intake and ensure the effectiveness of anti-siphon.

[0030] Furthermore, the anti-siphon assembly also includes a protective cover 11, and each of the connecting ribs 8 extends to the outside of the suction connector 3 and connects to the protective cover 11.

[0031] The benefits of this design are as follows: the protective cover prevents foreign objects from entering the air intake, ensures the normal operation of the anti-siphon component, and improves safety.

[0032] Furthermore, the end of the flow channel connector 2 connected to the air intake connector 3 is also provided with a flow groove 12. When the counterflow core 7 is in the second state, the water inlet 4 can also be connected to the water outlet 5 through the flow groove 12.

[0033] The beneficial effects of this design are as follows: the flow channel keeps the inlet and outlet connected, and the size of the flow channel is much smaller than the size of the inlet end near the outlet. Even when the fluid velocity is low, it can still flow to the outlet. It can also balance the pressure between the inlet and outlet, reduce the pressure difference, and further prevent the occurrence of siphoning.

[0034] Furthermore, the end of the air intake connector 3 corresponding to the water outlet 5 is cylindrical.

[0035] The advantages of this design are as follows: the outlet adopts a cylindrical shape for pipe connection, and the omnidirectional design allows for easy installation at any angle of 360 degrees.

[0036] Further, the outer edge of the flow channel connector 2 away from the intake connector 3 has at least two protrusions 13, and the side wall of the pressure reducing solenoid valve body 1 has at least two L-shaped grooves 14 for the two protrusions 13 to slide into and engage. The flow channel connector 2 and the pressure reducing solenoid valve body 1 are detachably connected through the two protrusions 13 and the two L-shaped grooves 14.

[0037] The beneficial effects of this design are as follows: the interlocking of the two protruding pillars with the two L-shaped grooves allows the flow channel connector to be detachably connected to the body of the pressure reducing solenoid valve. The protruding pillars first extend into the L-shaped grooves, and then rotate relative to the body of the pressure reducing solenoid valve through the flow channel connectors, causing the protruding pillars to slide into the corner of the L-shaped grooves to form an interlocking connection. This makes disassembly and assembly convenient and the connection reliable. The body of the pressure reducing solenoid valve can also be used independently after the anti-siphon component is removed.

[0038] In a further configuration, the flow channel connector 2 and the air intake connector 3 are detachably connected by a pin 15. The side wall of the air intake connector 3 is provided with a socket 16 for the pin 15 to be inserted into, and the side wall of the flow channel connector 2 is provided with a slot 17 for the pin 15 to be engaged. When the pin 15 is inserted into the socket 16 and engaged with the slot 17 at the same time, the flow channel connector 2 and the air intake connector 3 are fixedly connected.

[0039] The advantages of this design are as follows: the flow channel connector and the suction connector are fixed with pins, which are easy to install and secure. The anti-siphon component adopts a split structure, that is, the combination of the flow channel connector and the suction connector, which is convenient for individual replacement or maintenance.

[0040] Further configuration includes a U-shaped pin 15, two insertion holes 16 on the side wall of the air intake connector 3 for inserting the two ends of the pin 15, and an annular groove 17.

[0041] The beneficial effects of this design are as follows: it increases the connection points between the pin and the suction connector and the flow channel connector, further improving the stability and firmness of the connection; and the middle of the pin forms a disassembly and assembly part that is easy to hold with disassembly and assembly tools, further facilitating the disassembly and assembly of the pin.

[0042] Furthermore, sealing rings 18 are provided between the flow channel connector 2 and the pressure reducing solenoid valve body 1, as well as between the flow channel connector 2 and the suction connector 3.

[0043] The beneficial effects of this design are as follows: the sealing performance of each joint connection end is improved through the sealing ring.

[0044] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A combined anti-siphon pressure reducing solenoid valve, characterized in that: The device includes a pressure reducing solenoid valve body (1) and an anti-siphon assembly connected to the pressure reducing solenoid valve body (1). The anti-siphon assembly includes a flow channel connector (2) and an air intake connector (3) connected to the flow channel connector (2). The flow channel connector (2) has an inlet (4). The air intake connector (3) has an outlet (5) and an air intake (6). A counterflow core (7) is slidably arranged inside the air intake connector (3) at a position corresponding to the air intake (6). The counterflow core (7) has a first state that connects the inlet (4) and the outlet (5) and a second state that blocks the inlet (4) and the outlet (5).

2. The combined anti-siphon pressure reducing solenoid valve according to claim 1, characterized in that: The inner wall of the air inlet (6) is evenly distributed with at least two connecting ribs (8) along the circumference. An air hole (9) communicating with the outside is formed between each pair of connecting ribs (8). At least two connecting ribs (8) surround to form a sliding part (10) for sliding connection of the counterflow core (7).

3. The combined anti-siphon pressure reducing solenoid valve according to claim 2, characterized in that: The anti-siphon assembly also includes a protective cover (11), and each of the connecting ribs (8) extends to the outside of the suction connector (3) and connects to the protective cover (11).

4. The combined anti-siphon pressure reducing solenoid valve according to claim 1, characterized in that: The flow channel connector (2) is connected to the air intake connector (3) at one end, and a flow groove (12) is also provided. When the counterflow core (7) is in the second state, the water inlet (4) can also be connected to the water outlet (5) through the flow groove (12).

5. A combined anti-siphon pressure reducing solenoid valve according to claim 1, characterized in that: The end of the air intake connector (3) corresponding to the water outlet (5) is cylindrical.

6. A combined anti-siphon pressure reducing solenoid valve according to claim 1, characterized in that: The flow channel connector (2) has at least two protruding posts (13) on the outer edge of the end away from the intake connector (3). The pressure reducing solenoid valve body (1) has at least two L-shaped grooves (14) on its side wall for the two protruding posts (13) to slide into and engage. The flow channel connector (2) and the pressure reducing solenoid valve body (1) are detachably connected through the two protruding posts (13) and the two L-shaped grooves (14).

7. A combined anti-siphon pressure reducing solenoid valve according to claim 1, characterized in that: The flow channel connector (2) and the air intake connector (3) are detachably connected by a pin (15). The side wall of the air intake connector (3) is provided with a socket (16) for the pin (15) to be inserted. The side wall of the flow channel connector (2) is provided with a slot (17) for the pin (15) to be engaged. When the pin (15) is inserted into the socket (16) and engaged with the slot (17) at the same time, the flow channel connector (2) and the air intake connector (3) are fixedly connected.

8. A combined anti-siphon pressure reducing solenoid valve according to claim 7, characterized in that: The pin (15) is U-shaped, and the side wall of the air intake connector (3) has two insertion holes (16) for the two ends of the pin (15) to be inserted into respectively. The slot (17) is annular.

9. A combined anti-siphon pressure reducing solenoid valve according to claim 1, characterized in that: A sealing ring (18) is provided between the flow channel connector (2) and the body of the pressure reducing solenoid valve (1) and between the flow channel connector (2) and the suction connector (3).

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