Liquid micro-mass flow control valve

Abstract

The utility model discloses a liquid micro-mass flow control valve which comprises a box body, a valve shell is installed on one side of the top of the inner wall of the box body through bolts, a water inlet pipe head and a water outlet pipe head are connected to the outer walls of the two sides of the top of the box body in an inserted mode respectively and extend into the valve shell, and a flow baffle is integrally formed in the center of one side of the top of the inner wall of the valve shell. A plurality of through holes are formed in the outer wall of one side of the flow baffle, and a mounting cylinder is mounted in the center of the outer wall of one side of the bottom of the valve shell through bolts; according to the flow control valve, when liquid enters the valve shell through the water inlet pipe head, the filter screen can filter the liquid, small impurities are prevented from flowing along with the liquid to impact internal parts of the valve shell, the internal structure of the valve shell is prevented from being greatly abraded due to impact, the service life of the flow control valve is prolonged, and the service life of the flow control valve is prolonged. The flow control valve can accurately control the liquid flow for a long time, and the practicability of the flow control valve is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow control valves, in particular to a liquid micro-mass flow control valve. Background Art

[0002] Flow control valves are used to control the speed of actuators. According to their functions and uses, they can be divided into throttle valves, stroke throttle valves, speed control valves and diverter throttle valves. Their common feature is that they use the change of the flow area of the throttle port in the valve to adjust the liquid resistance when the oil flows through the throttle port, thereby achieving flow control.

[0003] For example, a liquid flow control valve with application number CN201911071110.6 and publication date 20200317 includes a shell, a liquid inlet pipe is fixedly connected at the center of one end of the shell, and a liquid outlet pipe is fixedly connected at the center of the other end of the shell. A flow regulating mechanism is provided at the center of the shell, and the flow regulating mechanism includes two arc-shaped baffles, a fixed plate and a U-shaped fixed frame. One side wall of the fixed plate is fixedly connected to a cross bar, and the end of the cross bar away from the fixed plate is fixedly connected to the inner wall of the shell. The present invention provides a liquid flow control valve, which is provided with a flow regulating mechanism, which can conveniently and labor-savingly regulate and control the liquid flow inside the shell. The regulation operation is simpler and easier to use. Two arc-shaped baffles and two elastic contraction plates are provided to form a cone at the liquid inlet, so that the liquid flowing into the liquid inlet pipe can be diverted from the center, reducing the liquid entry pressure, reducing damage to the control valve, greatly improving the service life of the control valve, and reducing maintenance frequency.

[0004] Most of the flow control valves on the market have complex structures and high requirements for the purity of the liquid. If the liquid contains impurities, the impurities will impact the internal structure of the control valve, causing wear and tear on the internal structure of the control valve, affecting the control accuracy of the flow control valve, and causing the flow control valve to be unable to accurately control the liquid flow. Therefore, it is urgent to design a liquid micro-mass flow control valve to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a liquid micro-mass flow control valve to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A liquid micro-mass flow control valve comprises a box body, a valve shell is installed on the top side of the inner wall of the box body by bolts, and the outer walls on both sides of the top of the box body are respectively connected with an inlet pipe head and a water outlet pipe head, and the inlet pipe head and the outlet pipe head extend into the interior of the valve shell, a baffle is integrally formed at the center of the top side of the inner wall of the valve shell, and a plurality of through holes are opened on the outer wall of one side of the baffle, a mounting cylinder is installed at the center of the outer wall of the bottom side of the valve shell by bolts, and a driving motor is installed at the bottom end of the mounting cylinder by bolts, a screw rod is installed on the output end of the driving motor by a coupling, and a valve core plate is threadedly connected to the outside of the screw rod, and the valve core plate is clamped on the outside of the baffle, a filter screen is installed between the outer wall of one side of the baffle and one side of the inner wall of the valve shell by bolts, and ear plates are integrally formed on the outer walls of both sides of the box body.

[0008] Furthermore, a pressure relief cylinder is inserted into the outer wall of one side of the box body, and one end of the pressure relief cylinder extends to the interior of the valve housing.

[0009] Furthermore, a cylinder cover is clamped at one end of the pressure relief cylinder, and a cylinder plug is integrally formed on one side of the inner wall of the cylinder cover. The cylinder plug is inserted into the pressure relief cylinder, and a sliding rod is threadedly connected to the outer wall of one side of the cylinder cover.

[0010] Furthermore, a mounting groove is provided on the outer wall of one side of the pressure relief cylinder, and a fixing spring is installed on one side of the inner wall of the mounting groove by bolts, and the other end of the fixing spring is installed on one side of the inner wall of the cylinder cover by bolts, and the sliding rod passes through the fixing spring, and the sliding rod is slidably connected inside the mounting groove.

[0011] Furthermore, a box cover is clamped at the bottom end of the box body, and limiting grooves are provided on both sides of the inner wall of the box body.

[0012] Furthermore, both outer walls on the top of the box cover are provided with placement grooves, and both outer walls on the bottom of the box cover are provided with grooves, and the grooves and the placement grooves are interconnected.

[0013] Furthermore, a connecting spring is installed on one side of the inner wall of the placement groove through bolts, and a connector is installed on one end of the connecting spring through bolts, one end of the connector is inserted into the limiting groove, and one end of the connector extends into the groove.

[0014] In the above technical solution, the utility model provides a liquid micro-mass flow control valve, which has the following beneficial effects:

[0015] (1) Through the provided filter screen, when the liquid enters the valve housing through the water inlet pipe head, the filter screen can filter the liquid, preventing fine impurities from flowing with the liquid and impacting the internal parts of the valve housing, and preventing the internal structure of the valve housing from causing large wear due to impact, thereby extending the service life of the flow control valve and enabling the flow control valve to accurately control the liquid flow for a long time, thereby greatly improving the practicality of the flow control valve.

[0016] (2) Through the provided pressure relief cylinder, fixed spring, slide rod, cylinder cover and cylinder plug, if the filter is blocked by impurities, the liquid cannot pass through the filter, and the liquid will change direction and flow into the pressure relief cylinder, impacting the cylinder plug. As the liquid continues to flow in, the pressure inside the pressure relief cylinder will continue to increase, causing the cylinder plug and cylinder cover to be flushed open, so that the impurities intercepted on the filter flow into the pressure relief cylinder together with the liquid, and then flow out of the flow control valve, thereby realizing automatic cleaning of the filter.

[0017] (3) Through the provided connector and connecting spring, when the control valve needs to be repaired, the user can insert his fingers into the two grooves and then squeeze the connector, which will cause one end of the connector to break away from the limit groove, thereby releasing the restriction between the box cover and the box body, so that the worker can quickly disassemble the control valve for repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a liquid micro-mass flow control valve of the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of a box provided in an embodiment of a liquid micro-mass flow control valve of the present utility model.

[0021] Figure 3 This is a side structural schematic diagram of a valve housing provided by an embodiment of a liquid micro-mass flow control valve of the present utility model.

[0022] Figure 4 The utility model provides a liquid micro mass flow control valve embodiment Figure 2 A magnified view of the structure of part A in the middle.

[0023] Figure 5 This is a schematic diagram of the box cover structure provided by an embodiment of a liquid micro-mass flow control valve of the present utility model.

[0024] Description of reference numerals:

[0025] 1. Box body; 2. Ear plate; 3. Water inlet pipe head; 4. Water outlet pipe head; 5. Valve housing; 6. Baffle plate; 7. Valve core plate; 8. Mounting cylinder; 9. Drive motor; 10. Screw rod; 11. Box cover; 12. Limit groove; 13. Filter screen; 14. Through hole; 15. Pressure relief cylinder; 16. Mounting groove; 17. Fixed spring; 18. Slide rod; 19. Cylinder cover; 20. Cylinder plug; 21. Placement groove; 22. Recess; 23. Connector; 24. Connecting spring. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-5 As shown, an embodiment of the present invention provides a liquid micro-mass flow control valve, including a box body 1, a valve shell 5 is installed on the top side of the inner wall of the box body 1 by bolts, and the outer walls on both sides of the top of the box body 1 are respectively connected with an inlet pipe head 3 and an outlet pipe head 4, and the inlet pipe head 3 and the outlet pipe head 4 extend into the interior of the valve shell 5, and a baffle 6 is integrally formed at the center of the top side of the inner wall of the valve shell 5, and a plurality of through holes 14 are opened on the outer wall of one side of the baffle 6, a mounting cylinder 8 is installed at the center of the outer wall of the bottom side of the valve shell 5 by bolts, and a driving motor 9 is installed on the bottom end of the mounting cylinder 8 by bolts, a screw rod 10 is installed on the output end of the driving motor 9 through a coupling, and the external thread of the screw rod 10 is connected to the valve core plate 7, the valve core plate 7 is clamped on the outside of the baffle 6, a filter screen 13 is installed between the outer wall of one side of the baffle 6 and one side of the inner wall of the valve shell 5 by bolts, and ear plates 2 are integrally formed on the outer walls of both sides of the box body 1.

[0028] Specifically, in this embodiment, it includes a box body 1, a valve housing 5 is installed on one side of the top of the inner wall of the box body 1 by bolts, and an inlet pipe head 3 and an outlet pipe head 4 are respectively inserted into the outer walls on both sides of the top of the box body 1. The inlet pipe head 3 and the outlet pipe head 4 are convenient for liquid to enter and exit the valve housing 5, and the inlet pipe head 3 and the outlet pipe head 4 extend to the inside of the valve housing 5. A baffle 6 is integrally formed at the center of the top of one side of the inner wall of the valve housing 5, and a plurality of through holes 14 are opened on the outer wall of one side of the baffle 6. The through holes 14 facilitate liquid to pass through the baffle 6. A mounting cylinder 8 is installed at the center of the outer wall of the bottom side of the valve housing 5 by bolts, and a driving motor 9 is installed at the bottom end of the mounting cylinder 8 by bolts. The model of the driving motor 9 is preferably 57BYGH650-23. A screw rod 10 is installed at the output end of the driving motor 9 through a coupling, and the external thread of the screw rod 10 is connected to the valve core plate 7. Start the driving motor 9 , which will cause the screw rod 10 to carry the valve core plate 7 to slide inside the installation cylinder 8, causing the valve core plate 7 to move downward, causing the valve core plate 7 to move away from the baffle 6, so that a portion of the through hole 14 is exposed, and the subsequent liquid will flow into the other side of the valve housing 5 through the through hole 14 to control the flow of the liquid. The valve core plate 7 is clamped on the outside of the baffle 6, and a filter screen 13 is installed between the outer wall of one side of the baffle 6 and one side of the inner wall of the valve housing 5 by bolts. When the liquid flows into the interior of the valve housing 5 through the water inlet pipe head 3, the filter screen 13 can filter the liquid, preventing fine impurities from flowing with the liquid and impacting the internal parts of the valve housing 5, thereby preventing the internal structure of the valve housing 5 from causing greater wear due to the impact, thereby extending the service life of the flow control valve. The outer walls on both sides of the box body 1 are integrally formed with ear plates 2, and there are holes on the ear plates 2 to facilitate the bolts to pass through the ear plates 2, so that the box body 1 is fixed.

[0029] The utility model provides a liquid micro-mass flow control valve. When liquid enters the valve housing 5 through the water inlet pipe head 3, the filter screen 13 can filter the liquid to prevent fine impurities from flowing with the liquid and causing impact on the internal parts of the valve housing 5, thereby preventing the internal structure of the valve housing 5 from causing significant wear due to impact, thereby extending the service life of the flow control valve and enabling the flow control valve to accurately control the liquid flow for a long time, thereby greatly improving the practicality of the flow control valve.

[0030] In one embodiment provided by the present invention, Figure 2 and Figure 4As shown, a pressure relief cylinder 15 is inserted into the outer wall of one side of the box body 1, and one end of the pressure relief cylinder 15 extends to the inside of the valve housing 5, and a cylinder cover 19 is clamped at one end of the pressure relief cylinder 15, and a cylinder plug 20 is integrally formed on one side of the inner wall of the cylinder cover 19. The cylinder plug 20 is inserted into the inside of the pressure relief cylinder 15, and a slide rod 18 is threadedly connected to the outer wall of one side of the cylinder cover 19. A mounting groove 16 is provided on the outer wall of one side of the pressure relief cylinder 15, and a fixing spring 17 is installed on one side of the inner wall of the mounting groove 16 by bolts. The other end of the fixing spring 17 is installed on one side of the inner wall of the cylinder cover 19 by bolts. The slide rod 18 passes through the fixing spring 17, and the pressure inside the pressure relief cylinder 15 does not exceed the fixing spring 1 7, under the action of the fixing spring 17, the cylinder plug 20 will be tightly inserted into the pressure relief cylinder 15, so that the pressure relief cylinder 15 is closed. If the filter screen 13 is blocked by impurities, the liquid cannot pass through the filter screen 13, and the liquid will change direction and flow into the pressure relief cylinder 15, which will impact the cylinder plug 20. As the liquid continues to flow in, the pressure inside the pressure relief cylinder 15 will continue to increase, causing the cylinder plug 20 and the cylinder cover 19 to be flushed open, so that the impurities intercepted on the filter screen 13 flow into the pressure relief cylinder 15 together with the liquid, and then flow out of the flow control valve, thereby realizing automatic cleaning of the filter screen 13. The slide rod 18 is slidably connected to the inside of the mounting groove 16.

[0031] In another embodiment provided by the present invention, Figure 2 and Figure 5 The cam 23 is connected to the cam 21 by the spring 24 and the spring 25 is connected to the cam 21 by the spring 25. The cam 23 is connected to the cam 21 by the spring 25. When the cam 21 is in the closed position, the cam 23 is in the closed position and the cam 25 is in the closed position.

[0032] Example 1

[0033] A liquid micro-mass flow control valve comprises a box body 1, a valve housing 5 is installed on one side of the top of the inner wall of the box body 1 by bolts, and an inlet pipe head 3 and an outlet pipe head 4 are respectively inserted into the outer walls on both sides of the top of the box body 1. The inlet pipe head 3 and the outlet pipe head 4 are convenient for liquid to enter and exit the valve housing 5, and the inlet pipe head 3 and the outlet pipe head 4 extend to the inside of the valve housing 5. A baffle 6 is integrally formed at the center of the top of one side of the inner wall of the valve housing 5, and a plurality of through holes 14 are opened on the outer wall of one side of the baffle 6. The through holes 14 facilitate liquid to pass through the baffle 6. A mounting cylinder 8 is installed at the center of the outer wall of the bottom side of the valve housing 5 by bolts, and a driving motor 9 is installed at the bottom end of the mounting cylinder 8 by bolts. The model of the driving motor 9 is preferably 57BYGH650-23. A screw rod 10 is installed on the output end of the driving motor 9 through a coupling, and the external thread of the screw rod 10 is connected to the valve core plate 7. The driving motor is started The machine 9 will cause the screw rod 10 to slide with the valve core plate 7 inside the installation cylinder 8, causing the valve core plate 7 to move downward, causing the valve core plate 7 to move away from the baffle 6, so that a part of the through hole 14 is exposed, and the subsequent liquid will flow into the other side of the valve housing 5 through the through hole 14 to realize the flow control of the liquid. The valve core plate 7 is clamped on the outside of the baffle 6, and a filter screen 13 is installed between the outer wall of one side of the baffle 6 and one side of the inner wall of the valve housing 5 by bolts. When the liquid flows into the interior of the valve housing 5 through the water inlet pipe head 3, the filter screen 13 can filter the liquid to prevent fine impurities from flowing with the liquid and impacting the internal parts of the valve housing 5, thereby preventing the internal structure of the valve housing 5 from causing greater wear due to the impact, thereby extending the service life of the flow control valve. The outer walls on both sides of the box body 1 are integrally formed with ear plates 2, and there are holes on the ear plates 2 to facilitate the bolts to pass through the ear plates 2, so that the box body 1 is fixed.

[0034] Example 2

[0035] This embodiment is further defined on the basis of embodiment 1, wherein a pressure relief cylinder 15 is plugged into the outer wall of one side of the box body 1, and one end of the pressure relief cylinder 15 extends to the inside of the valve housing 5, and a cylinder cover 19 is clamped at one end of the pressure relief cylinder 15, and a cylinder plug 20 is integrally formed on one side of the inner wall of the cylinder cover 19. The cylinder plug 20 is plugged into the inside of the pressure relief cylinder 15, and a sliding rod 18 is threadedly connected to the outer wall of one side of the cylinder cover 19. A mounting groove 16 is provided on the outer wall of one side of the pressure relief cylinder 15, and a fixing spring 17 is installed on one side of the inner wall of the mounting groove 16 by bolts, and the other end of the fixing spring 17 is installed on the inner wall of the mounting groove 16 by bolts. On one side of the inner wall of the cylinder cover 19, the slide rod 18 passes through the fixed spring 17. When the pressure inside the pressure relief cylinder 15 does not exceed the elasticity of the fixed spring 17, under the action of the fixed spring 17, the cylinder plug 20 will be tightly inserted into the pressure relief cylinder 15, so that the pressure relief cylinder 15 is closed. If the filter screen 13 is blocked by impurities, the liquid cannot pass through the filter screen 13. The liquid will change direction and flow into the pressure relief cylinder 15, which will impact the cylinder plug 20. As the liquid continues to flow in, the pressure inside the pressure relief cylinder 15 will continue to increase, causing the cylinder plug 20 and the cylinder cover 19 to be flushed open, so that the filter screen 13 The impurities intercepted above flow into the pressure relief cylinder 15 together with the liquid, and then flow out of the flow control valve, thereby realizing automatic cleaning of the filter screen 13. The slide rod 18 is slidably connected to the inside of the mounting groove 16; the bottom end of the box body 1 is clamped with a box cover 11, and both sides of the inner wall of the box body 1 are provided with limiting grooves 12. The outer walls on both sides of the top of the box cover 11 are provided with mounting grooves 21, and the outer walls on both sides of the bottom of the box cover 11 are provided with grooves 22, and the grooves 22 and the mounting grooves 21 are interconnected. A connecting spring 24 is installed on one side of the inner wall of the mounting groove 21 by a bolt. Under the elastic force of the connecting spring 24, The connector 23 will be inserted into the limiting groove 12, so that the box cover 11 is fixed on the box body 1, and one end of the connecting spring 24 is installed with the connector 23 by a bolt. When the control valve needs to be repaired, you can put your fingers into the two grooves 22 and then squeeze the connector 23, which will cause one end of the connector 23 to disengage from the limiting groove 12, so that the restriction between the box cover 11 and the box body 1 is released, so that the worker can quickly disassemble the control valve for maintenance. One end of the connector 23 is inserted into the limiting groove 12, and one end of the connector 23 extends to the inside of the groove 22.

[0036] Working principle: When the control valve is used to control the flow of liquid, the liquid will flow into the valve housing 5 through the water inlet pipe head 3. When adjusting subsequently, the worker can start the drive motor 9 to make the screw rod 10 slide the valve core plate 7 inside the installation cylinder 8, so that the valve core plate 7 moves downward, so that the valve core plate 7 is away from the baffle 6, so that a part of the through hole 14 is exposed, and the subsequent liquid will flow into the other side of the valve housing 5 through the through hole 14, and then enter the water outlet pipe head 4, so as to realize the flow control of the liquid. When the liquid flows inside the flow valve, the filter screen 13 can filter the liquid to prevent fine impurities from flowing with the liquid and impacting the internal parts of the valve housing 5, thereby preventing the internal structure of the valve housing 5 from being greatly worn due to the impact. The service life is extended, and if the filter screen 13 is blocked by impurities, the liquid cannot pass through the filter screen 13, and the liquid will change direction and flow into the pressure relief cylinder 15, which will impact the cylinder plug 20. As the liquid continues to flow in, the pressure inside the pressure relief cylinder 15 will continue to increase, causing the cylinder plug 20 and the cylinder cover 19 to be flushed open, so that the impurities intercepted on the filter screen 13 flow into the pressure relief cylinder 15 together with the liquid, and then flow out of the flow control valve, thereby realizing automatic cleaning of the filter screen 13. When the control valve needs to be repaired later, you can put your fingers into the two grooves 22 and then squeeze the connector 23, which will cause one end of the connector 23 to disengage from the limit groove 12, so that the restriction between the box cover 11 and the box body 1 is released, so that workers can quickly disassemble the control valve for maintenance.

[0037] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A liquid micro-mass flow control valve, comprising a housing (1), characterized in that: A valve housing (5) is mounted on one side of the top of the inner wall of the box body (1) by means of bolts. An inlet pipe head (3) and an outlet pipe head (4) are respectively plugged into the outer walls on both sides of the top of the box body (1), and the inlet pipe head (3) and the outlet pipe head (4) extend into the interior of the valve housing (5). A baffle (6) is integrally formed at the center of one side of the top of the inner wall of the valve housing (5), and a plurality of through holes (14) are opened on the outer wall of one side of the baffle (6). A valve housing (5) is mounted on the center of the outer wall of the bottom side of the valve housing (5) by means of bolts. A mounting cylinder (8) is provided, and a driving motor (9) is installed at the bottom end of the mounting cylinder (8) by means of bolts. A screw rod (10) is installed at the output end of the driving motor (9) by means of a coupling, and the external thread of the screw rod (10) is connected to a valve core plate (7). The valve core plate (7) is clamped on the outside of the baffle plate (6). A filter screen (13) is installed between the outer wall of one side of the baffle plate (6) and the inner wall of one side of the valve housing (5) by means of bolts. The outer walls of both sides of the box body (1) are integrally formed with ear plates (2).

2. A liquid micro mass flow control valve according to claim 1, characterized in that: A pressure relief cylinder (15) is inserted into the outer wall of one side of the box body (1), and one end of the pressure relief cylinder (15) extends into the interior of the valve housing (5).

3. A liquid micro mass flow control valve according to claim 2, characterized in that: One end of the pressure relief cylinder (15) is clamped with a cylinder cover (19), and a cylinder plug (20) is integrally formed on one side of the inner wall of the cylinder cover (19). The cylinder plug (20) is inserted into the interior of the pressure relief cylinder (15), and a sliding rod (18) is threadedly connected to the outer wall of one side of the cylinder cover (19).

4. A liquid micro mass flow control valve according to claim 3, characterized in that: A mounting groove (16) is provided on the outer wall of one side of the pressure relief cylinder (15), and a fixing spring (17) is installed on one side of the inner wall of the mounting groove (16) by means of bolts. The other end of the fixing spring (17) is installed on one side of the inner wall of the cylinder cover (19) by means of bolts. The sliding rod (18) passes through the fixing spring (17), and the sliding rod (18) is slidably connected to the inside of the mounting groove (16).

5. The liquid micro mass flow control valve according to claim 1, characterized in that: The bottom end of the box body (1) is clamped with a box cover (11), and both sides of the inner wall of the box body (1) are provided with limiting grooves (12).

6. A liquid micro mass flow control valve according to claim 5, characterized in that: Both outer walls on the top of the box cover (11) are provided with placement grooves (21), and both outer walls on the bottom of the box cover (11) are provided with grooves (22), and the grooves (22) and the placement grooves (21) are interconnected.

7. A liquid micro mass flow control valve according to claim 6, characterized in that: A connecting spring (24) is installed on one side of the inner wall of the placement groove (21) by means of bolts, and a plug-in component (23) is installed on one end of the connecting spring (24) by means of bolts. One end of the plug-in component (23) is plugged into the interior of the limiting groove (12), and one end of the plug-in component (23) extends into the interior of the groove (22).

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