Flow regulation proportional valve with flushing structure

Abstract

The utility model discloses a flow regulating proportional valve with a flushing structure, which belongs to the technical field of flow regulating proportional valves and comprises a regulating proportional valve body and a liquid storage tank, and a first three-way electric control valve is fixedly mounted at the input end of the regulating proportional valve body. According to the utility model, through the cooperation of the first water pump, the second water pump, the liquid pumping pipe, the water pumping pipe, the third three-way electric control valve and the liquid inlet pipe, decontamination liquid and clean water in the inner cavities of the liquid storage chamber and the water outlet chamber are pumped out in sequence; in addition, a first liquid guide pipe, a second liquid guide pipe, a first three-way electric control valve and a second three-way electric control valve on the two-position four-way reversing valve are used for guiding decontamination liquid and clean water into the adjusting proportional valve body to flush the adjusting proportional valve body, and the two-position four-way reversing valve is used for changing the flowing direction of liquid in the adjusting proportional valve body. According to the flow adjusting proportional valve with the flushing structure, the adjusting proportional valve body is flushed in the forward direction and the reverse direction, the flushing quality is guaranteed, and the practicability of the flow adjusting proportional valve with the flushing structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow regulating proportional valves, and more specifically to a flow regulating proportional valve with a flushing structure. Background Art

[0002] The proportional flow valve is composed of a proportional electromagnet and a flow valve. It is a manual adjustment device that uses a proportional electromagnet to replace a throttle valve or a speed regulating valve. The throttle valve opening is changed by inputting an electrical signal to adjust the flow of the system. It is mostly used in multi-station processing machine tools, injection molding machines, imitation silk cotton and other hydraulic system speed control equipment. In addition, the combination of a proportional electromagnet and a throttle valve is called a proportional throttle valve, the combination with a speed regulating valve is called a proportional speed regulating valve, and the combination with a one-way speed regulating valve is called a proportional one-way speed regulating valve. However, the existing proportional valve device generally cannot be cleaned internally after use. After a long time, dirt will appear inside, which is easy to cause blockage, which is not conducive to subsequent use, and the cleanliness of the interior cannot be guaranteed, thereby failing to achieve the original intention of using a steady flow regulating proportional valve, resulting in poor applicability of the steady flow regulating proportional valve. For this reason, we propose a flow regulating proportional valve with a flushing structure. Utility Model Content

[0003] In view of the problems mentioned in the above background technology, the purpose of the utility model is to provide a flow regulating proportional valve with a flushing structure.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] A flow regulating proportional valve with a flushing structure comprises a regulating proportional valve body and a liquid storage tank, wherein a first three-way electric control valve is fixedly mounted on an input end of the regulating proportional valve body, a second three-way electric control valve is fixedly mounted on an output end of the regulating proportional valve body, a liquid storage chamber, a water outlet chamber and a sewage storage chamber are respectively arranged inside the liquid storage tank, a two-position four-way reversing valve is fixedly mounted on a side of the regulating proportional valve body, a first liquid inlet and a second liquid inlet and an outlet are arranged on the top of the two-position four-way reversing valve, a liquid inlet and a liquid outlet are arranged on the bottom of the two-position four-way reversing valve, and the liquid inlet and the liquid outlet are arranged on the bottom of the two-position four-way reversing valve. An electromagnetic controller is provided on the side of the two-position four-way reversing valve, a first liquid guide tube is fixedly sleeved on the first liquid inlet and outlet, and the end of the first liquid guide tube is connected to one end of the first three-way electric control valve, a second liquid guide tube is fixedly sleeved on the second liquid inlet and outlet, and the end of the second liquid guide tube is connected to one end of the second three-way electric control valve, a liquid discharge pipe is fixedly sleeved on the liquid inlet, and the end of the liquid discharge pipe is fixedly sleeved to the inner cavity of the sewage storage chamber, a liquid pumping mechanism is provided on the liquid storage tank, and electric heating pipes are fixedly installed in the inner cavities of the liquid storage chamber and the water outlet chamber respectively.

[0006] As a preferred solution of the utility model, the liquid pumping mechanism includes a first water pump and a second water pump fixedly installed on the top surface of the liquid storage tank, the input end of the first water pump is fixedly connected to a liquid pumping pipe, the input end of the second water pump is fixedly connected to a water pumping pipe, the end of the liquid pumping pipe extends to the inner cavity of the liquid storage chamber, the end of the water pumping pipe extends to the inner cavity of the water outlet chamber, the output ends of the first water pump and the second water pump are fixedly installed with a third three-way electric-controlled valve, the output end of the third three-way electric-controlled valve is fixedly connected to a liquid inlet pipe, and the end of the liquid inlet pipe is connected to the bottom end of the liquid discharge port.

[0007] As a preferred solution of the utility model, two threaded plugs are threadedly installed on the top surface of the liquid storage box, and the bottom ends of the two threaded plugs extend to the inner cavities of the liquid storage chamber and the water outlet chamber respectively.

[0008] As a preferred solution of the utility model, perspective plates are arranged on the outer sides of the liquid storage chamber, the water outlet chamber and the sewage storage chamber.

[0009] As a preferred solution of the utility model, a switch valve is fixedly installed on the outer side of the liquid storage tank, and the end of the switch valve extends to the inner cavity of the sewage storage chamber.

[0010] As a preferred solution of the utility model, the input end of the first three-way electric control valve is fixedly connected to an oil extraction pipe, and the output end of the second three-way electric control valve is fixedly connected to an oil discharge pipe.

[0011] The advantages of the utility model are:

[0012] In the utility model, the first water pump, the second water pump, the liquid suction pipe, the water suction pipe, the third three-way electric control valve and the liquid inlet pipe cooperate to pump out the decontamination liquid and the clean water in the inner cavity of the liquid storage chamber and the water outlet chamber in turn, and the first liquid guide pipe, the second liquid guide pipe, the first three-way electric control valve and the second three-way electric control valve on the two-position four-way reversing valve are used to introduce the decontamination liquid and the clean water into the regulating proportion valve body to flush the regulating proportion valve body, and the two-position four-way reversing valve is used to change the flow direction of the liquid in the regulating proportion valve body to achieve flushing of the regulating proportion valve body from both positive and negative directions, and the electric heating pipe is used to heat the decontamination liquid and the clean water in the liquid storage chamber and the water outlet chamber, and the hot decontamination liquid and the clean water are used to flush the inside of the regulating proportion valve body, so as to ensure the quality of flushing and improve the practicality of the flow regulating proportion valve with a flushing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the liquid storage tank of the utility model;

[0015] Figure 3This is a structural schematic diagram of the two-position four-way reversing valve of the utility model;

[0016] Figure 4 It is a cross-sectional schematic diagram of the liquid storage tank of the utility model.

[0017] Description of the numbers in the figure:

[0018] 1. Regulating proportional valve body; 2. Liquid storage tank; 3. First three-way electric control valve; 4. Second three-way electric control valve; 5. Two-position four-way reversing valve; 6. First liquid inlet and outlet; 7. Second liquid inlet and outlet; 8. Liquid inlet; 9. Liquid outlet; 10. First liquid guide tube; 11. Second liquid guide tube; 13. Liquid storage chamber; 14. Water outlet chamber; 15. Waste storage chamber; 16. Liquid outlet pipe; 17. Liquid pumping mechanism; 18. Electric heating pipe; 19. First water pump; 20. Second water pump; 21. Liquid pumping pipe; 22. Water pumping pipe; 23. Third three-way electric control valve; 24. Liquid inlet pipe; 25. Threaded plug; 26. See-through plate; 27. Switch valve; 28. Solenoid controller; 29. ​​Oil pumping pipe; 30. Oil outlet pipe. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings 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.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] Example:

[0023] See also Figure 1-4 A flow regulating proportional valve with a flushing structure comprises a regulating proportional valve body 1 and a liquid storage tank 2, wherein a first three-way electric control valve 3 is fixedly installed at the input end of the regulating proportional valve body 1, a second three-way electric control valve 4 is fixedly installed at the output end of the regulating proportional valve body 1, a liquid storage chamber 13, a water outlet chamber 14 and a sewage storage chamber 15 are respectively arranged inside the liquid storage tank 2, a two-position four-way reversing valve 5 is fixedly installed on the side of the regulating proportional valve body 1, a first liquid inlet and outlet 6 and a second liquid inlet and outlet 7 are arranged on the top of the two-position four-way reversing valve 5, a liquid inlet 8 and a liquid outlet 9 are arranged at the bottom of the two-position four-way reversing valve 5, and a two-position four-way reversing valve 5 is provided with a liquid inlet 8 and a liquid outlet 9. An electromagnetic controller 28 is provided on the side of the four-way reversing valve 5, a first liquid guide tube 10 is fixedly sleeved on the first liquid inlet and outlet 6, and the end of the first liquid guide tube 10 is connected to one end of the first three-way electric control valve 3, a second liquid guide tube 11 is fixedly sleeved on the second liquid inlet and outlet 7, and the end of the second liquid guide tube 11 is connected to one end of the second three-way electric control valve 4, a liquid discharge pipe 16 is fixedly sleeved on the liquid inlet 8, and the end of the liquid discharge pipe 16 is fixedly sleeved to the inner cavity of the sewage storage chamber 15, a liquid pumping mechanism 17 is provided on the liquid storage tank 2, and electric heating pipes 18 are fixedly installed in the inner cavities of the liquid storage chamber 13 and the water outlet chamber 14, respectively.

[0024] In this embodiment, the inner cavity of the liquid storage chamber 13 is preset with decontamination liquid, and the inner cavity of the water outlet chamber 14 is provided with clean water. The decontamination liquid and the clean water are heated by the electric heating tube 18 to ensure the quality of flushing the regulating proportional valve body 1. In addition, the two-position four-way reversing valve 5 is an existing equipment, and the electromagnetic controller 28 is used to change the direction of the liquid in and out of the first liquid inlet and outlet 6 and the second liquid inlet and outlet 7.

[0025] For details, please refer to Figures 1 to 4 The liquid pumping mechanism 17 includes a first water pump 19 and a second water pump 20 fixedly installed on the top surface of the liquid storage tank 2, the input end of the first water pump 19 is fixedly connected to a liquid pumping pipe 21, the input end of the second water pump 20 is fixedly connected to a water pumping pipe 22, the end of the liquid pumping pipe 21 extends to the inner cavity of the liquid storage chamber 13, and the end of the water pumping pipe 22 extends to the inner cavity of the water outlet chamber 14, the output ends of the first water pump 19 and the second water pump 20 are fixedly installed with a third three-way electric control valve 23, the output end of the third three-way electric control valve 23 is fixedly connected to a liquid inlet pipe 24, and the end of the liquid inlet pipe 24 is connected to the bottom end of the discharge port 9.

[0026] For details, please refer to Figure 2 and Figure 4 Two threaded plugs 25 are threadedly installed on the top surface of the liquid storage box 2, and the bottom ends of the two threaded plugs 25 extend to the inner cavities of the liquid storage chamber 13 and the water outlet chamber 14 respectively.

[0027] In this embodiment, the decontamination liquid and the cleaning water are filled into the liquid storage chamber 13 and the water outlet chamber 14 by removing the threaded plug 25 .

[0028] For details, please refer to Figure 2 and Figure 4 The outsides of the liquid storage chamber 13 , the water outlet chamber 14 and the dirt storage chamber 15 are all provided with a perspective plate 26 .

[0029] In this embodiment, the liquid amounts in the liquid storage chamber 13 , the water outlet chamber 14 and the sewage storage chamber 15 are controlled by the perspective plate 26 .

[0030] For details, please refer to Figure 1 and Figure 4 A switch valve 27 is fixedly installed on the outer side of the liquid storage tank 2 , and the end of the switch valve 27 extends to the inner cavity of the sewage storage chamber 15 .

[0031] In this embodiment, the waste liquid in the waste storage chamber 15 is discharged through the switch valve 27 .

[0032] For details, please refer to Figure 1 The input end of the first three-way electric control valve 3 is fixedly connected to an oil extraction pipe 29 , and the output end of the second three-way electric control valve 4 is fixedly connected to an oil discharge pipe 30 .

[0033] In this embodiment, the hydraulic fluid is introduced into the regulating proportional valve body 1 through the oil extraction pipe 29 , and the regulated hydraulic fluid is discharged through the oil discharge pipe 30 .

[0034] Working principle: When it is necessary to clean the inside of the regulating proportional valve body 1, first remove the threaded plug 25, respectively fill the inner cavity of the liquid storage chamber 13 and the water outlet chamber 14 with decontamination liquid and clean water, start the electric heating tube 18 to heat the decontamination liquid and clean water in the liquid storage chamber 13 and the water outlet chamber 14, and control the first three-way electric control valve 3 to connect the first liquid guide tube 10 with the input end of the regulating proportional valve body 1, control the second three-way electric control valve 4 to connect the second liquid guide tube 11 with the output end of the regulating proportional valve body 1, and then control the third three-way electric control valve 23 to connect the liquid inlet pipe 2 4 is connected to the output end of the first water pump 19, the first water pump 19 is started to pump the decontamination liquid in the inner cavity of the liquid storage chamber 13 into the two-position four-way reversing valve 5, and the decontamination liquid is introduced into the regulating proportion valve body 1 from the first liquid inlet and outlet 6, the first liquid guide pipe 10 and the first three-way electric control valve 3 by the two-position four-way reversing valve 5, and the decontamination liquid is guided back to the storage chamber 15 by the second three-way electric control valve 4, the second liquid guide pipe 11, the second liquid inlet and outlet 7, the liquid inlet 8 and the discharge pipe 16, and the regulating proportion valve body 1 is cleaned by the decontamination liquid flowing in the regulating proportion valve body 1, and the electromagnetic The controller 28 changes the direction of the liquid inlet and outlet of the first liquid inlet and outlet 6 and the second liquid inlet and outlet 7, so that the decontamination liquid enters the regulating proportional valve body 1 from the second liquid inlet and outlet 7, the second liquid guide pipe 11 and the second three-way electric control valve 4, and the decontamination liquid is guided back to the storage chamber 15 by the first three-way electric control valve 3, the first liquid guide pipe 10, the first liquid inlet and outlet 6, the liquid inlet 8 and the liquid discharge pipe 16 for collection, and the decontamination liquid flowing forward and backward in the regulating proportional valve body 1 is used to decontaminate the inside of the regulating proportional valve body 1, and then the output of the second water pump 20 is controlled by controlling the third three-way electric control valve 23. The outlet end is connected to the liquid inlet pipe 24, and the clean water in the water outlet chamber 14 is pumped out by the second water pump 20. At this time, the two-position four-way reversing valve 5 is adjusted again to make the clean water flow forward and backward in the regulating proportional valve body 1 to clean the oil and decontamination liquid in the regulating proportional valve body 1. Finally, the sewage in the storage chamber 15 is discharged by opening the switch valve 27, and the first three-way electric control valve 3 and the second three-way electric control valve 4 are controlled again to make the oil extraction pipe 29 and the input end of the regulating proportional valve body 1 connected, and the oil discharge pipe 30 and the output end of the regulating proportional valve body 1 are connected.

[0035] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A flow regulating proportional valve with a flushing structure, characterized in that: The invention comprises a regulating proportion valve body (1) and a liquid storage tank (2), wherein a first three-way electric control valve (3) is fixedly mounted on the input end of the regulating proportion valve body (1), and a second three-way electric control valve (4) is fixedly mounted on the output end of the regulating proportion valve body (1), and the interior of the liquid storage tank (2) is respectively provided with a liquid storage chamber (13), a water outlet chamber (14) and a sewage storage chamber (15), and a two-position four-way reversing valve (5) is fixedly mounted on the side of the regulating proportion valve body (1), and a first liquid inlet and outlet (6) and a second liquid inlet and outlet (7) are arranged on the top of the two-position four-way reversing valve (5), and a liquid inlet (8) and a liquid outlet (9) are arranged on the bottom of the two-position four-way reversing valve (5), and the side of the two-position four-way reversing valve (5) is provided with a liquid outlet (8) and a liquid outlet (9). An electromagnetic controller (28) is provided. A first liquid guide tube (10) is fixedly sleeved on the first liquid inlet and outlet (6), and the end of the first liquid guide tube (10) is connected to one end of a first three-way electric control valve (3). A second liquid guide tube (11) is fixedly sleeved on the second liquid inlet and outlet (7), and the end of the second liquid guide tube (11) is connected to one end of a second three-way electric control valve (4). A liquid discharge tube (16) is fixedly sleeved on the liquid inlet (8), and the end of the liquid discharge tube (16) is fixedly sleeved to the inner cavity of a sewage storage chamber (15). A liquid pumping mechanism (17) is provided on the liquid storage box (2), and electric heating tubes (18) are fixedly installed in the inner cavities of the liquid storage chamber (13) and the water outlet chamber (14), respectively.

2. A flow regulating proportional valve with a flushing structure according to claim 1, characterized in that: The liquid pumping mechanism (17) comprises a first water pump (19) and a second water pump (20) fixedly mounted on the top surface of the liquid storage tank (2); the input end of the first water pump (19) is fixedly connected to a liquid pumping pipe (21); the input end of the second water pump (20) is fixedly connected to a water pumping pipe (22); the end of the liquid pumping pipe (21) extends to the inner cavity of the liquid storage chamber (13); the end of the water pumping pipe (22) extends to the inner cavity of the water outlet chamber (14); the output ends of the first water pump (19) and the second water pump (20) are fixedly mounted with a third three-way electric control valve (23); the output end of the third three-way electric control valve (23) is fixedly connected to a liquid inlet pipe (24); the end of the liquid inlet pipe (24) is connected to the bottom end of the liquid discharge port (9).

3. The flow regulating proportional valve with a flushing structure according to claim 1, characterized in that: Two threaded plugs (25) are threadedly mounted on the top surface of the liquid storage box (2), and the bottom ends of the two threaded plugs (25) extend to the inner cavities of the liquid storage chamber (13) and the water outlet chamber (14), respectively.

4. The flow regulating proportional valve with a flushing structure according to claim 1, characterized in that: The outer sides of the liquid storage chamber (13), the water outlet chamber (14) and the dirt storage chamber (15) are all provided with a perspective plate (26).

5. The flow regulating proportional valve with a flushing structure according to claim 1, characterized in that: A switch valve (27) is fixedly mounted on the outside of the liquid storage box (2), and the end of the switch valve (27) extends to the inner cavity of the sewage storage chamber (15).

6. The flow regulating proportional valve with a flushing structure according to claim 1, characterized in that: The input end of the first three-way electrically controlled valve (3) is fixedly connected to an oil extraction pipe (29), and the output end of the second three-way electrically controlled valve (4) is fixedly connected to an oil discharge pipe (30).

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