Combined electromagnetic directional valve

Abstract

The utility model relates to the technical field of electromagnetic valves, and discloses a combined electromagnetic reversing valve which comprises two shells, a protective shell is fixedly installed on the right side of the top wall of the top shell, a filter shell is fixedly connected to the top wall of the protective shell, and a miniature fan is fixedly connected to the middle of the left side of the top wall of the top shell. And the output end of the micro fan communicates with a one-way conveying pipe, the bottom end of the one-way conveying pipe penetrates through the top wall of the shell at the top and communicates with a hollow filter plate, the bottom wall of the hollow filter plate is fixedly installed on the left side of the inner bottom wall of the shell at the bottom, and electromagnetic valve equipment is fixedly installed in the middle of the inner bottom wall of the shell at the bottom. According to the electromagnetic valve, filtered air flow can be extracted by starting the micro fan, and enters the hollow filter plate through the one-way conveying pipe, so that internal gaps of the hollow filter plate at the inlet can be cleaned, and normal use of the electromagnetic valve is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a combined electromagnetic reversing valve. Background Art

[0002] Solenoid reversing valve, also known as electromagnetic directional valve, is a solenoid valve that can switch fluid between different channels. By controlling the power supply state of the electromagnetic coil, the piston or valve core in the solenoid reversing valve can be switched between different positions, thereby changing the flow direction of the fluid. Solenoid reversing valves are commonly used in the fields of hydraulic systems and pneumatic systems, and can achieve rapid switching and control of fluids between different pipelines.

[0003] After searching, the Chinese patent announcement number is: CN208951347U, which discloses a modular assembled electromagnetic reversing valve, including a valve body, wherein the upper end, the lower end and the rear end of the valve body are integrally formed with a connecting pipe, and the right end of the flange joint is tightly fitted with a mounting plate, and the right end of the mounting plate is fixedly connected with an electromagnetic controller, and the interior of the electromagnetic controller is plugged with an iron core that penetrates the mounting plate, and is used in conjunction with the external thread on the outer side of the connecting pipe to continuously shorten the distance between the connecting pipe and the connecting sleeve interface until the two are seamlessly fitted, and the connection process does not require the rotation of the valve body and the external conduit, nor does it require a low-strength hose transfer, which reduces the difficulty of installation while ensuring the strength of the connection, and greatly simplifies the complexity of installation when the pipe diameter is thin and the flange connection cannot be used, and the detachable mounting plate can be used to inspect the inside of the valve body, thereby improving the durability of the electromagnetic reversing valve, but in actual use, the solenoid valve cannot clean the filter at the connection well, and dirt may accumulate during use, which may clog the filter and affect the normal use of the solenoid valve. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a combined electromagnetic reversing valve, which aims to improve the problem that the filter may accumulate dirt, which may clog the filter and affect the normal use of the electromagnetic valve.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a combined electromagnetic reversing valve, comprising two outer shells, a protective shell is fixedly installed on the right side of the top wall of the top outer shell, a filter shell is fixedly connected to the top wall of the protective shell, a micro fan is fixedly connected to the middle of the left side of the top wall of the top outer shell, the output end of the micro fan is connected to a one-way delivery pipe, the bottom end of the one-way delivery pipe passes through the top wall of the top outer shell and is connected to a hollow filter plate, the bottom wall of the hollow filter plate is fixedly installed on the left side of the inner bottom wall of the bottom outer shell, an electromagnetic valve device is fixedly installed in the middle of the inner bottom wall of the bottom outer shell, and a connecting mechanism is provided on the left side of the outer shell.

[0006] As a further description of the above technical solution:

[0007] The connecting mechanism includes a plurality of fixed shells, and adjacent sides of the plurality of fixed shells are respectively fixedly connected to the left and right sides of the corresponding outer shells; adjacent sides of the inner walls of the two top fixed shells are fixedly connected with electric telescopic rods; the output ends of the two electric telescopic rods are fixedly connected with displacement plates; two sides of the two displacement plates are equidistantly provided with two slots; the inner bottom walls of the two bottom fixed shells are fixedly connected with clamping plates, and the tops of the two clamping plates are respectively clamped with the corresponding slots.

[0008] As a further description of the above technical solution:

[0009] The front and rear sides of the top wall of the shell at the bottom are both provided with sealing grooves, and the bottom wall of the shell at the top is fixedly connected with sealing plates, and the bottoms of the two sealing plates are respectively engaged with the corresponding sealing grooves.

[0010] As a further description of the above technical solution:

[0011] A control switch is fixedly connected to the bottom wall of the fixed shell on the top front side, and the control switch is electrically connected to the electric telescopic rod and the micro fan respectively.

[0012] As a further description of the above technical solution:

[0013] A protective shell is arranged on the top of the control switch, and the right side of the protective shell is rotatably connected to the fixed shell on the front side of the top through a hinge.

[0014] As a further description of the above technical solution:

[0015] A rubber ring is fixedly mounted on the outer wall of the one-way delivery pipe, and the outer wall of the rubber ring is fixedly connected to the top of the outer shell.

[0016] As a further description of the above technical solution:

[0017] A sealing ring is fixedly installed on the right side of the inner bottom wall of the shell at the bottom.

[0018] As a further description of the above technical solution:

[0019] The left and right sides of the two shells are both fixedly connected with flanges.

[0020] The utility model has the following beneficial effects:

[0021] In the utility model, by starting the micro-blower, the filtered airflow can be extracted and enter the hollow filter plate through the one-way conveying pipe, so that the internal gap of the hollow filter plate at the entrance can be cleaned, reducing the possibility of blockage and avoiding affecting the normal use of the solenoid valve.

[0022] In the utility model, by starting the two electric telescopic rods, the two displacement plates are displaced, and then the engaging plate is separated from the displacement plate, and the top shell is pulled to separate the two shells, thereby greatly simplifying the installation complexity of the solenoid valve, allowing the solenoid valve to be inspected and repaired, improving maintenance efficiency, and extending service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a combined electromagnetic reversing valve proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of the structure inside the shell of a combined electromagnetic reversing valve proposed by the utility model;

[0025] Figure 3 The utility model is a schematic diagram of a connection mechanism of a combined electromagnetic reversing valve.

[0026] Legend:

[0027] 1. Shell; 2. Connecting mechanism; 201. Fixed shell; 202. Electric telescopic rod; 203. Displacement plate; 204. Slot; 205. Clamping plate; 3. Protective shell; 4. Filter shell; 5. Micro fan; 6. One-way conveying pipe; 7. Rubber ring; 8. Hollow filter plate; 9. Solenoid valve equipment; 10. Sealing plate; 11. Sealing groove; 12. Control switch; 13. Protective shell; 14. Sealing ring; 15. Flange. DETAILED DESCRIPTION

[0028] 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.

[0029] Reference Figure 1 and Figure 2, the utility model provides an embodiment: a combined electromagnetic reversing valve, including two shells 1, a protective shell 3 is fixedly installed on the right side of the top wall of the top shell 1, a filter shell 4 is fixedly connected to the top wall of the protective shell 3, a micro fan 5 is fixedly connected to the middle of the left side of the top wall of the top shell 1, and the output end of the micro fan 5 is connected with a one-way delivery pipe 6, the bottom end of the one-way delivery pipe 6 passes through the top wall of the top shell 1 and is connected with a hollow filter plate 8, the bottom wall of the hollow filter plate 8 is fixedly installed on the left side of the inner bottom wall of the bottom shell 1, and a solenoid valve device 9 is fixedly installed in the middle of the inner bottom wall of the bottom shell 1; the front and rear sides of the top wall of the bottom shell 1 are both provided with sealing grooves 11, the bottom wall of the top shell 1 is fixedly connected with sealing plates 10, and the bottoms of the two sealing plates 10 are respectively engaged with the corresponding sealing grooves 11; the outer wall of the one-way delivery pipe 6 is fixedly installed with a rubber ring 7, and the outer wall of the rubber ring 7 is fixedly connected to the top of the top shell 1;

[0030] Specifically, by starting the micro fan 5, its extraction end can extract the filtered airflow through the filter housing 4, effectively preventing larger particles from entering the micro fan 5 and the one-way conveying pipe 6. This improvement reduces the risk of damage to the micro fan 5 and clogging the one-way conveying pipe 6, thereby increasing the service life of the equipment. When the airflow reaches the inside of the hollow filter plate 8, it should continue to diffuse outward. In this way, not only can the inside of the hollow filter plate 8 be cleaned, but the possibility of clogging can also be reduced. In this way, equipment failures caused by clogging are avoided, and the normal use of the solenoid valve is guaranteed. The bottoms of the two sealing plates 10 are respectively engaged with the corresponding sealing grooves 11, so that the sealing effect of the two outer shells 1 can be effectively increased. The rubber ring 7 can protect the connection between the one-way conveying pipe 6 and the top outer shell 1 to reduce wear.

[0031] Reference Figure 1 and Figure 3 , a connecting mechanism 2 is provided on the left side of the shell 1, and the connecting mechanism 2 includes a plurality of fixed shells 201, and adjacent sides of the plurality of fixed shells 201 are respectively fixedly connected to the left and right sides of the corresponding shell 1, and adjacent sides of the inner walls of the two top fixed shells 201 are fixedly connected to the electric telescopic rods 202, and the output ends of the two electric telescopic rods 202 are fixedly connected to the displacement plates 203, and the two displacement plates 203 are equidistantly provided with two card slots 204 on the far sides thereof, and the inner bottom walls of the two bottom fixed shells 201 are fixedly connected to the clamping plates 205, and the tops of the two clamping plates 205 are respectively clamped with the corresponding card slots 204;

[0032] Specifically, it is achieved by starting the two electric telescopic rods 202. The design and application of the electric telescopic rods 202 enable the two displacement plates 203 to be accurately displaced. On this basis, by controlling the operation of the electric telescopic rods 202, the two engaging plates 205 can be smoothly separated from the corresponding card slots 204. Next, by pulling the top shell 1, the two shells 1 can be easily separated. This design makes the installation process of the solenoid valve easier. Not only that, since the part of the shell 1 that needs to be disassembled during the maintenance process has been simplified, the time and effort required for maintenance work has also been significantly reduced.

[0033] Reference Figure 1 , Figure 2 and Figure 3 The bottom wall of the top front fixed shell 201 is fixedly connected with a control switch 12, and the control switch 12 is electrically connected with the electric telescopic rod 202 and the micro fan 5 respectively; a protective shell 13 is arranged on the top of the control switch 12, and the right side of the protective shell 13 is rotatably connected with the top front fixed shell 201 through a hinge;

[0034] Specifically, through the control switch 12 electrically connected to the electric telescopic rod 202 and the micro fan 5 respectively, the control switch 12 can complete the opening and closing of the electric telescopic rod 202 and the micro fan 5, and the protective shell 13 can protect the control switch 12 and prevent accidental touch.

[0035] Reference Figure 1 A sealing ring 14 is fixedly installed on the right side of the inner bottom wall of the bottom shell 1; flanges 15 are fixedly connected to the left and right sides of the two shells 1;

[0036] Specifically, the sealing ring 14 can improve the sealing performance of the connection of the housing 1, and the plurality of flanges 15 can facilitate the fixed installation of the solenoid valve.

[0037] Working principle: When cleaning begins, the micro fan 5 is started so that the extraction end of the micro fan 5 can extract the filtered airflow through the filter housing 4, preventing larger particles from entering the micro fan 5 and the one-way conveying pipe 6, reducing the possibility of damage to the micro fan 5 and clogging the one-way conveying pipe 6, and after the airflow reaches the inside of the hollow filter plate 8, it continues to diffuse outward, thereby cleaning the inside of the hollow filter plate 8, reducing the possibility of clogging and avoiding affecting the normal use of the solenoid valve, and by starting the two electric telescopic rods 202, the two displacement plates 203 are displaced, so that the two locking plates 205 are separated from the corresponding slots 204, and the top shell 1 is pulled to separate the two shells 1, thereby greatly simplifying the complexity of the installation of the solenoid valve, allowing the solenoid valve to be inspected and repaired, and improving maintenance efficiency.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined electromagnetic reversing valve, comprising two housings (1), characterized in that: A protective shell (3) is fixedly mounted on the right side of the top wall of the housing (1) at the top, a filter shell (4) is fixedly connected to the top wall of the protective shell (3), a micro fan (5) is fixedly connected to the middle of the left side of the top wall of the housing (1) at the top, an output end of the micro fan (5) is connected to a one-way delivery pipe (6), the bottom end of the one-way delivery pipe (6) passes through the top wall of the housing (1) at the top and is connected to a hollow filter plate (8), the bottom wall of the hollow filter plate (8) is fixedly mounted on the left side of the inner bottom wall of the housing (1) at the bottom, a solenoid valve device (9) is fixedly mounted in the middle of the inner bottom wall of the housing (1) at the bottom, and a connecting mechanism (2) is provided on the left side of the housing (1).

2. A combined electromagnetic reversing valve according to claim 1, characterized in that: The connection mechanism (2) comprises a plurality of fixed shells (201), adjacent sides of the plurality of fixed shells (201) are respectively fixedly connected to the left and right sides of the corresponding outer shell (1), adjacent sides of the inner walls of the two top fixed shells (201) are fixedly connected to electric telescopic rods (202), output ends of the two electric telescopic rods (202) are fixedly connected to displacement plates (203), two slots (204) are equidistantly provided on the sides away from each other of the two displacement plates (203), and inner bottom walls of the two bottom fixed shells (201) are fixedly connected to locking plates (205), and the tops of the two locking plates (205) are respectively locked with the corresponding locking slots (204).

3. A combined electromagnetic reversing valve according to claim 1, characterized in that: The front and rear sides of the top wall of the bottom shell (1) are both provided with sealing grooves (11), and the bottom wall of the top shell (1) is fixedly connected with a sealing plate (10), and the bottoms of the two sealing plates (10) are respectively engaged with the corresponding sealing grooves (11).

4. A combined electromagnetic reversing valve according to claim 2, characterized in that: A control switch (12) is fixedly connected to the bottom wall of the fixed shell (201) at the top front side, and the control switch (12) is electrically connected to the electric telescopic rod (202) and the micro fan (5) respectively.

5. A combined electromagnetic reversing valve according to claim 4, characterized in that: A protective shell (13) is provided on the top of the control switch (12), and the right side of the protective shell (13) is rotatably connected to the fixed shell (201) on the front side of the top via a hinge.

6. A combined electromagnetic reversing valve according to claim 1, characterized in that: A rubber ring (7) is fixedly mounted on the outer wall of the one-way delivery pipe (6), and the outer wall of the rubber ring (7) is fixedly connected to the top of the outer shell (1).

7. The combined electromagnetic reversing valve according to claim 1, characterized in that: A sealing ring (14) is fixedly mounted on the right side of the inner bottom wall of the housing (1) at the bottom.

8. The combined electromagnetic reversing valve according to claim 1, characterized in that: Flanges (15) are fixedly connected to the left and right sides of the two housings (1).

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