Double-electromagnetic-valve device

Abstract

The utility model discloses a double electromagnetic valve device, which relates to the technical field of fluid control, and comprises a first electromagnetic valve, the feeding end part of the first electromagnetic valve is communicated and connected with a first feeding pipe, the discharging end part of the first electromagnetic valve is communicated and connected with a first discharging pipe, a second electromagnetic valve is arranged below the first electromagnetic valve, and a second electromagnetic valve is arranged below the second electromagnetic valve. The feeding end of the second electromagnetic valve is communicated with a second feeding pipe, the discharging end of the second electromagnetic valve is communicated with a second discharging pipe, and a feeding manifold is communicated between the second feeding pipe and the first feeding pipe through a mechanical valve. And a discharging manifold is communicated and connected between the second discharging pipe and the first discharging pipe through a mechanical valve. By arranging the two sets of electromagnetic valves, the second set of electromagnetic valves can be started when one set of electromagnetic valves breaks down, and then the stability of fluid conveying is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid control, in particular to a double solenoid valve device. Background Art

[0002] Solenoid valves are industrial equipment controlled by electromagnetics. They are basic automation components used to control fluids and are actuators. Solenoid valves can be used in conjunction with different circuits to achieve the desired control, while ensuring both control accuracy and flexibility. Different solenoid valves function in different locations in the control system, and the most commonly used are check valves, safety valves, directional control valves, etc.

[0003] At present, when controlling the flow of fluid, a single set of solenoid valves is generally used for control. If the solenoid valve fails, the flow of the entire fluid needs to be suspended so that the solenoid valve can be replaced and repaired. This causes the fluid delivery to be affected by the state of the solenoid valve. For this reason, we propose a dual solenoid valve structure to ensure the stability of fluid delivery. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a dual solenoid valve device to solve the technical problems mentioned in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual solenoid valve device, comprising a first solenoid valve, wherein the feed end of the first solenoid valve is connected to a first feed pipe, and the discharge end of the first solenoid valve is connected to a first discharge pipe, a second solenoid valve is installed below the first solenoid valve, and the feed end of the second solenoid valve is connected to a second feed pipe, and the discharge end of the second solenoid valve is connected to a second discharge pipe, the second feed pipe and the first feed pipe are connected to a feed manifold via a mechanical valve, and the second discharge pipe and the first discharge pipe are connected to a discharge manifold via a mechanical valve.

[0006] By adopting the above technical solution, the second group of solenoid valves can be started when a group of solenoid valves fails, thereby ensuring the stability of fluid transportation.

[0007] The utility model is further configured such that a filtering structure is installed on the outer wall of the first feed pipe to filter and purify the conveyed fluid, and the filtering structure includes a filtering box installed on the outer wall of the first feed pipe, and one end of the filtering box is provided with a feeding port connected to the first feed pipe, and the other end of the filtering box is provided with an outlet connected to the first feed pipe.

[0008] By adopting the above technical solution, the effect of assisting fluid filtering and purification is achieved.

[0009] The utility model is further configured that a filter cavity is provided inside the filter box, and a filter screen is installed in the filter cavity.

[0010] By adopting the above technical solution, the fluid can be filtered and purified.

[0011] The utility model is further configured that the filter screen is slidably connected to the inner wall of the filter cavity, and a cleaning structure is provided on one side of the filter screen.

[0012] By adopting the above technical solution, the filter screen can be cleaned.

[0013] The utility model is further configured such that the cleaning structure includes a fixing plate fixedly arranged on the inner wall of the filter box, and the fixing plate is spaced apart from the filter screen, and the end surface of the fixing plate is provided with a plurality of groups of return springs whose ends are connected to the outer wall of the filter screen.

[0014] By adopting the above technical solution, the effect of assisting the cleaning of the filter is achieved.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] 1. The utility model sets two sets of solenoid valves. First, the fluid flows into the first solenoid valve through the first feed pipe, and flows out through the first discharge pipe under the action of the first solenoid valve, thereby realizing the control of fluid flow. When the first solenoid valve fails, the mechanical valve is manually opened. At this time, the fluid in the feed pipe enters the second feed pipe through the feed manifold, and flows out to the second discharge pipe through the second solenoid valve, and finally flows into the first discharge pipe through the discharge manifold, thereby continuing to transport the fluid and ensuring the stability of fluid transportation;

[0017] 2. The utility model sets a filter box. Before the fluid enters the solenoid valve, it will first enter the filter box for filtration and purification, thereby improving the quality of the fluid and avoiding damage to the solenoid valve. Specifically, after the fluid enters the filter box, it will squeeze the filter screen, causing the filter screen to shift and be filtered under the action of the filter screen, thereby removing solid impurities in the fluid and effectively protecting the solenoid valve. After the fluid delivery is completed, the reset spring will drive the filter screen to reset. In this process, the reciprocating horizontal jump of the reset spring after resetting is used to achieve reciprocating vibration of the filter screen, and then under the action of high frequency, the self-cleaning of the filter screen is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the filtering structure of the utility model;

[0020] Figure 3This is a schematic diagram of the installation of the filter screen of the utility model;

[0021] Figure 4 It is a schematic diagram of the cleaning structure of the utility model.

[0022] In the figure: 1. first solenoid valve; 2. first feed pipe; 3. first discharge pipe; 4. second solenoid valve; 5. second feed pipe; 6. second discharge pipe; 7. feed manifold; 8. discharge manifold; 9. filter box; 10. feed port; 11. discharge port; 12. filter screen; 13. fixing plate; 14. return spring. DETAILED DESCRIPTION

[0023] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0024] The following describes an embodiment of the utility model based on its overall structure.

[0025] A double solenoid valve device, such as Figure 1-4 As shown, it includes a first solenoid valve 1, a feed end of the first solenoid valve 1 is connected to a first feed pipe 2, and a discharge end of the first solenoid valve 1 is connected to a first discharge pipe 3, a second solenoid valve 4 is installed below the first solenoid valve 1, and a feed end of the second solenoid valve 4 is connected to a second feed pipe 5, and a discharge end of the second solenoid valve 4 is connected to a second discharge pipe 6, the second feed pipe 5 is connected to the first feed pipe 2 through a mechanical valve to connect a feed manifold 7, and the second discharge pipe 6 is connected to the first discharge pipe 3 through a mechanical valve to connect a discharge manifold 8;

[0026] Furthermore, in this embodiment, a filtering structure is installed on the outer wall of the first feed pipe 2 to filter and purify the conveying fluid;

[0027] Specifically, the filtering structure includes a filter box 9 installed on the outer wall of the first feed pipe 2, and one end of the filter box 9 is provided with a feed port 10 connected to the first feed pipe 2, and the other end of the filter box 9 is provided with an outlet 11 connected to the first feed pipe 2, and a filter cavity is provided inside the filter box 9, and a filter screen 12 is installed in the filter cavity.

[0028] See also Figure 4The filter screen 12 is slidably connected to the inner wall of the filter chamber, and a cleaning structure is provided on one side of the filter screen 12, the cleaning structure includes a fixing plate 13 fixedly arranged on the inner wall of the filter box 9, and the fixing plate 13 and the filter screen 12 are spaced apart, and the end surface of the fixing plate 13 is provided with a plurality of groups of return springs 14 whose ends are connected to the outer wall of the filter screen 12, and the return spring 14 is used to realize the vibration cleaning of the filter screen 12 by the return jump.

[0029] The working principle of the utility model is as follows: first, the flow enters the first solenoid valve 1 through the first feed pipe 2, and flows out through the first discharge pipe 3 under the action of the first solenoid valve 1, thereby realizing the control of the fluid flow, and when the first solenoid valve 1 fails, the mechanical valve is manually opened, at this time, the fluid in the first feed pipe 2 enters the second feed pipe 5 through the feed manifold 7, and flows out to the second discharge pipe 6 through the second solenoid valve 4, and finally flows into the first discharge pipe 3 through the discharge manifold 8, thereby continuing to transport the fluid and ensuring the stability of the fluid transportation.

[0030] Furthermore, before the fluid enters the solenoid valve, it will first enter the filter box 9 for filtration and purification, thereby improving the quality of the fluid and avoiding damage to the solenoid valve. Specifically, after the fluid enters the filter box 9, it will squeeze the filter screen 12, causing the filter screen 12 to shift and be filtered under the action of the filter screen, thereby removing solid impurities in the fluid and effectively protecting the solenoid valve. After the fluid delivery is completed, the return spring 14 will drive the filter screen 12 to reset. In this process, the reciprocating horizontal jump of the return spring 14 after reset is used to achieve reciprocating vibration of the filter screen 12, and then under the action of high frequency, the self-cleaning of the filter screen 12 is achieved.

[0031] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A dual solenoid valve device, comprising a first solenoid valve (1), characterized in that: The feed end of the first solenoid valve (1) is connected to the first feed pipe (2), and the discharge end of the first solenoid valve (1) is connected to the first discharge pipe (3). A second solenoid valve (4) is installed below the first solenoid valve (1), and the feed end of the second solenoid valve (4) is connected to the second feed pipe (5), and the discharge end of the second solenoid valve (4) is connected to the second discharge pipe (6). The second feed pipe (5) and the first feed pipe (2) are connected to a feed manifold (7) via a mechanical valve, and the second discharge pipe (6) and the first discharge pipe (3) are connected to a discharge manifold (8) via a mechanical valve.

2. A dual solenoid valve device according to claim 1, characterized in that: The outer wall of the first feed pipe (2) is provided with a filtering structure to achieve filtering and purification of the conveyed fluid.

3. A dual solenoid valve device according to claim 2, characterized in that: The filtering structure comprises a filtering box (9) mounted on the outer wall of a first feeding pipe (2), and one end of the filtering box (9) is provided with a feeding port (10) connected to the first feeding pipe (2), while the other end of the filtering box (9) is provided with a discharging port (11) connected to the first feeding pipe (2).

4. A dual solenoid valve device according to claim 3, characterized in that: A filter cavity is provided inside the filter box (9), and a filter screen (12) is installed in the filter cavity.

5. A dual solenoid valve device according to claim 4, characterized in that: The filter screen (12) is slidably connected to the inner wall of the filter chamber, and a cleaning structure is provided on one side of the filter screen (12).

6. A dual solenoid valve device according to claim 5, characterized in that: The cleaning structure comprises a fixing plate (13) fixedly arranged on the inner wall of the filter box (9), and the fixing plate (13) and the filter screen (12) are spaced apart from each other, and the end surface of the fixing plate (13) is provided with a plurality of groups of return springs (14) whose ends are connected to the outer wall of the filter screen (12).

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