Regulating valve suitable for high water pressure

Abstract

The regulating valve comprises a valve body, an upper cover, a driving motor, a rotating shaft, a flow disc and a fixing disc, the valve body is provided with a liquid inlet channel, an inner cavity and a liquid outlet channel which are communicated in sequence, the fixing disc is installed in the valve body, the upper end of the fixing disc is provided with a flow groove in an extending mode in the circumferential direction, and the flow groove is communicated with the inner cavity. A water outlet hole used for communicating one end of the flow groove with the liquid outlet channel is formed in the lower end of the fixing disc, the upper cover is installed at the upper end of the valve body, the driving motor is installed on the upper cover, and a motor shaft of the driving motor penetrates through the upper cover and extends into an inner cavity of the valve body to be in linkage connection with the rotating shaft. The flow disc is installed at the lower end of the rotating shaft in a linkage mode, the lower end face of the flow disc is tightly attached to the upper end face of the fixed disc, and a groove is formed in the flow disc. The utility model is suitable for high water pressure working conditions, can realize stepless flow regulation, and has the advantages of no noise or bass, good product reliability and lower cost.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a regulating valve suitable for high water pressure. Background Art

[0002] The regulating valve, also known as the control valve, is a final control element in the field of industrial automation process control that receives the control signal output by the regulating control unit and uses power operation to change the flow of the medium. It is generally composed of an actuator and a valve.

[0003] Most of the valves currently used are only suitable for the entry and exit of one flow medium. The method to be used for the entry and exit of media with more than two flow rates is to open multiple channels with different flow rates on the valve core to achieve flow regulation for different needs. However, the regulating valve can only choose between several flow values, with less selectivity and cannot accurately adjust the flow. Utility Model Content

[0004] The purpose of the utility model is to provide a regulating valve suitable for high water pressure. The utility model is suitable for high water pressure working conditions, can realize stepless flow regulation, and has the advantages of no noise or bass, good product reliability and lower cost.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a regulating valve suitable for high water pressure, comprising a valve body, an upper cover, a driving motor, a rotating shaft, a flow disc and a fixed disc, the valve body being provided with a liquid inlet channel, an inner cavity and a liquid outlet channel which are connected in sequence, the fixed disc being installed in the valve body, the upper end of the fixed disc being provided with a flow groove extending along the circumferential direction, the lower end of the fixed disc being provided with a water outlet hole for connecting one end of the flow groove with the liquid outlet channel, the upper cover being installed at the upper end of the valve body, the driving motor being installed on the upper cover, and the motor shaft of the driving motor passing through the upper cover and extending into the inner cavity of the valve body and being linked with the rotating shaft, the flow disc being linked with the lower end of the rotating shaft, the lower end surface of the flow disc being tightly fitted with the upper end surface of the fixed disc, and a groove being provided on the flow disc, when the flow disc rotates so that the orthographic projection of the groove overlaps with the flow groove on the flow disc, the regulating valve is turned on, and when the flow disc rotates so that the orthographic projection of the groove is completely staggered with the flow groove on the flow disc, the regulating valve is completely closed.

[0006] By adopting the above technical solution, the driving motor drives the shaft to rotate, driving the flow disk below to rotate, and the grooves on the flow disk rotate together. The fixed disk below is provided with a flow slot, and the positive projection of the groove on the flow slot of the fixed disk is the water outlet area. As the relative position of the groove and the flow slot changes, the overlapping part of the positive projection of the two changes, that is, the flow rate of the water will change, thereby realizing the function of stepless forward and reverse flow adjustment. This adjustment method is accurate and convenient, and has a fully closed gear position in the adjustment. It can also be used as a valve to achieve multiple uses and reduce costs. It has a wide market demand and practical value for promotion.

[0007] The utility model is further configured such that the flow slot is in an arc shape, and the width of the flow slot gradually increases along the arc length direction.

[0008] By adopting the above technical solution, when the flow disc rotates, the flow change can be made smoother and the adjustment can be made more precise.

[0009] The utility model is further configured that a lower end surface of the fixed disk is provided with an inner recess, the cross-sectional area of ​​the inner recess is larger than the cross-sectional area of ​​the liquid outlet channel, and the water outlet hole is connected with the liquid outlet channel through the inner recess.

[0010] By adopting the above technical solution, the installation of the fixing plate is greatly facilitated, and no matter at which angle the fixing plate is installed, smooth water flow can be ensured.

[0011] The utility model is further configured as follows: a mounting groove is provided in the valve body, a pressing sleeve is provided on the upper cover and extends toward the inner cavity of the valve, a plurality of through holes are provided on the circumference of the pressing sleeve, the pressing sleeve abuts against the upper end of the fixed disk and presses the fixed disk tightly into the mounting groove, a limiting protrusion is provided at the lower end of the pressing sleeve, and a limiting groove matching the limiting protrusion is provided on the fixed disk.

[0012] By adopting the above technical solution, the installation of the fixed plate can be realized, and the installation structure is simple and reliable, and the disassembly and assembly are very convenient.

[0013] The utility model is further configured such that a first sealing ring is sandwiched between the fixing plate and the mounting groove, a second sealing ring is sandwiched between the pressing sleeve and the inner wall of the valve body, and a third sealing ring is sandwiched between the pressing sleeve and the rotating shaft.

[0014] By adopting the above technical solution, good sealing performance of the valve can be ensured.

[0015] The utility model is further configured such that a plug hole is provided in the middle of the flow disk, and a linkage groove connected to the plug hole is provided at the upper end of the flow disk, an elastic clip is provided at the lower end of the rotating shaft which passes through the plug hole and locks the flow disk to the lower end of the rotating shaft, and a linkage protrusion which cooperates with the linkage groove is also provided on the elastic clip.

[0016] By adopting the above technical solution, the flow disc can be quickly installed and the disassembly and assembly operations are very convenient.

[0017] The utility model is further configured that a spring is sleeved on the outer circumference of the rotating shaft, a supporting step is provided on the rotating shaft, one end of the spring is tightly pressed against the supporting step, and the other end of the spring is tightly pressed against the flow disc.

[0018] By adopting the above technical solution, the spring is provided to ensure the force in both the upward and downward directions, play a sealing role, and can buffer and adjust the high pressure when the inner cavity is full of water.

[0019] The utility model is further configured that the rotating shaft is provided with a limiting step, and the pressing sleeve is provided with a limiting flange extending toward the inner circumference direction.

[0020] By adopting the above technical solution, the rotating shaft can be axially limited to prevent the rotating shaft from loosening.

[0021] The utility model is further configured that a micro switch is installed on the valve body, and a cam for cooperating with the micro switch is installed on the rotating shaft in linkage.

[0022] By adopting the above technical solution, the driving motor controls the cam and the flow disc to adjust the water flow rate, and the micro switch cooperates with the stepping motor to return to zero and output a signal after one circle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of the utility model as a whole;

[0024] Figure 2 A cross-sectional view of the utility model as a whole;

[0025] Figure 3 It is a schematic diagram of the fully closed state structure of the flow disc and the fixed disc of the utility model;

[0026] Figure 4 This is a schematic diagram of a small flow state of the flow disc and the fixed disc of the utility model;

[0027] Figure 5 This is a schematic diagram of a large flow state of the flow disc and the fixed disc of the utility model;

[0028] Figure 6 This is a schematic structural diagram of the fixing plate of the utility model from a first perspective;

[0029] Figure 7 This is a schematic structural diagram of the fixing plate of the utility model from a second viewing angle;

[0030] Figure 8 This is a schematic diagram of the structure of the utility model without the drive motor and valve body as a whole;

[0031] Fig. 9 It is a schematic diagram of the exploded structure of the rotating shaft and flow disc of the utility model.

[0032] In the figure: 1. valve body; 2. upper cover; 3. driving motor; 4. rotating shaft; 5. flow plate; 6. fixed plate; 7. liquid inlet channel; 8. inner cavity; 9. liquid outlet channel; 10. flow slot; 11. water outlet hole; 12. groove; 13. inner recess; 14. mounting slot; 15. pressing sleeve; 16. through hole; 17. limiting protrusion; 18. limiting card slot; 19. first sealing ring; 20. second sealing ring; 21. third sealing ring; 22. jack; 23. linkage slot; 24. elastic buckle; 25. linkage protrusion; 26. spring; 27. supporting step; 28. limiting step; 29. ​​limiting flange; 30. micro switch; 31. cam. DETAILED DESCRIPTION

[0033] 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.

[0034] Example: As shown in the attached Figures 1 to 9A regulating valve suitable for high water pressure is shown, comprising a valve body 1, an upper cover 2, a drive motor 3 (a stepper motor), a rotating shaft 4, a flow disc 5 and a fixed disc 6. The valve body 1 is provided with a liquid inlet channel 7, an inner cavity 8 and a liquid outlet channel 9 which are connected in sequence. The liquid inlet channel 7 is arranged in the outer ring to ensure that the water pressure can be buffered in the inner cavity 8. The fixed disc 6 is installed in the valve body 1. The upper end of the fixed disc 6 is provided with a flow groove 10 extending along the circumferential direction. The lower end of the fixed disc 6 is provided with a water outlet hole 11 for connecting one end of the flow groove 10 with the liquid outlet channel 9. The upper cover 2 is installed on the upper end of the valve body 1. The drive motor 3 is installed on the upper cover 2, and the motor shaft of the drive motor 3 The upper cover 2 extends into the inner cavity 8 of the valve body 1 and is linked to the rotating shaft 4, that is, the rotating shaft 4 has an open groove, the shape of the motor shaft of the driving motor 3 is adapted to the shape of the open groove, the flow disc 5 is linked and installed at the lower end of the rotating shaft 4, the lower end surface of the flow disc 5 is tightly fitted with the upper end surface of the fixed disc 6, the fixed disc 6, the flow disc 5, and the rotating shaft 4 are designed to be coaxial in the center, and the flow disc 5 is provided with a groove 12. When the flow disc 5 rotates so that the positive projection of the groove 12 overlaps with the flow groove 10 on the flow disc 5, the regulating valve is turned on, and when the flow disc 5 rotates so that the positive projection of the groove 12 is completely staggered with the flow groove 10 on the flow disc 5, the regulating valve is completely closed. The driving motor 3 drives the rotating shaft 4 to rotate, driving the flow disc 5 below to rotate, and the groove 12 on the flow disc 5 rotates together. The fixed disc 6 below is provided with a flow groove 10, and the positive projection of the groove 12 on the flow groove 10 of the fixed disc 6 is the water outlet area. As the relative positions of the groove 12 and the flow slot 10 change, the overlapping part of their orthographic projections changes, that is, the outflow of water will change, thereby realizing the function of stepless positive and negative flow regulation. This adjustment method is accurate and convenient, and has a fully closed gear position. It can also be used as a valve to achieve multi-purpose and reduce costs. It has broad market demand and practical value for promotion.

[0035] As attached Figure 6 As shown, the flow slot 10 is in an arc shape, and the width of the flow slot 10 gradually increases along the arc length direction. When the flow disk 5 rotates, the flow change can be smoother and the adjustment can be more precise.

[0036] As attached Figure 7 As shown, the lower end surface of the fixing plate 6 is provided with an inner concave portion 13, the cross-sectional area of ​​the inner concave portion 13 is larger than the cross-sectional area of ​​the liquid outlet channel 9, and the water outlet hole 11 is connected with the liquid outlet channel 9 through the inner concave portion 13. This design greatly facilitates the installation of the fixing plate 6, and can ensure smooth water outlet regardless of the installation angle.

[0037] As attached Figure 2 and attached Figure 8As shown, the valve body 1 is provided with a mounting groove 14, the upper cover 2 is provided with a pressing sleeve 15 extending toward the valve inner cavity 8, the circumferential side of the pressing sleeve 15 is provided with a plurality of through holes 16, the pressing sleeve 15 abuts against the upper end of the fixed disk 6 and presses the fixed disk 6 into the mounting groove 14, and the lower end of the pressing sleeve 15 is provided with a limiting protrusion 17, and the fixed disk 6 is provided with a limiting groove 18 that matches the limiting protrusion 17. This design can realize the installation of the fixed disk 6, and the installation structure is simple and reliable, and the disassembly and assembly are very convenient.

[0038] As attached Figure 2 As shown, a first sealing ring 19 is sandwiched between the fixing plate 6 and the mounting groove 14, a second sealing ring 20 is sandwiched between the pressing sleeve 15 and the inner wall of the valve body 1, and a third sealing ring 21 is sandwiched between the pressing sleeve 15 and the rotating shaft 4. This design can ensure good sealing performance of the valve.

[0039] As attached Figure 2 and attached Fig. 9 As shown, the flow disc 5 is provided with a plug hole 22 in the middle, and a linkage groove 23 connected to the plug hole 22 is provided at the upper end of the flow disc 5, and an elastic buckle 24 is provided at the lower end of the rotating shaft 4 to pass through the plug hole 22 and lock the flow disc 5 at the lower end of the rotating shaft 4, and a linkage protrusion 25 matching the linkage groove 23 is also provided on the elastic buckle 24. This design can realize the rapid installation of the flow disc 5, and the disassembly operation is very convenient.

[0040] As attached Figure 2 As shown, a spring 26 is sleeved on the outer periphery of the rotating shaft 4, and a supporting step 27 is provided on the rotating shaft 4. One end of the spring 26 is tightly pressed against the supporting step 27, and the other end of the spring 26 is tightly pressed against the flow disc 5. The spring 26 can ensure the force in both the upward and downward directions, play a sealing role, and can buffer and adjust the high pressure when the inner cavity 8 is full of water.

[0041] As attached Figure 2 As shown, the rotating shaft 4 is provided with a limiting step 28, and the pressing sleeve 15 is provided with a limiting flange 29 extending inwardly. This design can limit the rotating shaft 4 in the axial direction to prevent the rotating shaft 4 from loosening.

[0042] As attached Figure 8 As shown, a micro switch 30 is installed on the valve body 1, and a cam 31 for cooperating with the micro switch 30 is installed on the rotating shaft 4. The driving motor 3 controls the cam 31 and the flow disc 5 to adjust the water flow rate, and the micro switch 30 cooperates with the stepping motor to return to zero and output a signal after one revolution.

Claims

1. A regulating valve suitable for high water pressure, characterized in that: The invention comprises a valve body (1), an upper cover (2), a driving motor (3), a rotating shaft (4), a flow disc (5) and a fixed disc (6); the valve body (1) is provided with a liquid inlet channel (7), an inner cavity (8) and a liquid outlet channel (9) which are connected in sequence; the fixed disc (6) is installed in the valve body (1); a flow groove (10) is provided at the upper end of the fixed disc (6) along a circumferential direction; a water outlet hole (11) is provided at the lower end of the fixed disc (6) for connecting one end of the flow groove (10) with the liquid outlet channel (9); the upper cover (2) is installed at the upper end of the valve body (1); the driving motor (3) is installed on the upper cover (2); and the driving motor (3) is installed on the upper cover (2). The motor shaft of the motor (3) passes through the upper cover (2) and extends into the inner cavity (8) of the valve body (1) to be linked with the rotating shaft (4). The flow disk (5) is linked to be installed at the lower end of the rotating shaft (4). The lower end surface of the flow disk (5) is tightly fitted with the upper end surface of the fixed disk (6), and a groove (12) is provided on the flow disk (5). When the flow disk (5) rotates so that the positive projection of the groove (12) overlaps with the flow groove (10) on the flow disk (5), the regulating valve is turned on. When the flow disk (5) rotates so that the positive projection of the groove (12) is completely offset from the flow groove (10) on the flow disk (5), the regulating valve is completely closed.

2. A regulating valve suitable for high water pressure according to claim 1, characterized in that: The flow groove (10) is in an arc shape, and the width of the flow groove (10) gradually increases along the arc length direction.

3. A regulating valve suitable for high water pressure according to claim 1, characterized in that: The lower end surface of the fixed disk (6) is provided with an inner recess (13), the cross-sectional area of ​​the inner recess (13) is larger than the cross-sectional area of ​​the liquid outlet channel (9), and the water outlet hole (11) is connected to the liquid outlet channel (9) through the inner recess (13).

4. A regulating valve suitable for high water pressure according to claim 1, characterized in that: The valve body (1) is provided with a mounting groove (14), the upper cover (2) is provided with a pressing sleeve (15) extending toward the valve inner cavity (8), a plurality of through holes (16) are provided on the circumference of the pressing sleeve (15), the pressing sleeve (15) abuts against the upper end of the fixed disk (6) and presses the fixed disk (6) into the mounting groove (14), and a limiting protrusion (17) is provided at the lower end of the pressing sleeve (15), and a limiting groove (18) matching with the limiting protrusion (17) is provided on the fixed disk (6).

5. A regulating valve suitable for high water pressure according to claim 4, characterized in that: A first sealing ring (19) is sandwiched between the fixed disk (6) and the mounting groove (14), a second sealing ring (20) is sandwiched between the pressing sleeve (15) and the inner wall of the valve body (1), and a third sealing ring (21) is sandwiched between the pressing sleeve (15) and the rotating shaft (4).

6. A regulating valve suitable for high water pressure according to claim 4, characterized in that: The flow disk (5) is provided with a plug hole (22) in the middle, and a linkage groove (23) connected to the plug hole (22) is provided at the upper end of the flow disk (5); an elastic buckle (24) is provided at the lower end of the rotating shaft (4) for passing through the plug hole (22) and locking the flow disk (5) to the lower end of the rotating shaft (4); and a linkage protrusion (25) matching with the linkage groove (23) is also provided on the elastic buckle (24).

7. A regulating valve suitable for high water pressure according to claim 6, characterized in that: A spring (26) is sleeved on the outer circumference of the rotating shaft (4), and a supporting step (27) is provided on the rotating shaft (4). One end of the spring (26) is tightly pressed against the supporting step (27), and the other end of the spring (26) is tightly pressed against the flow disc (5).

8. A regulating valve suitable for high water pressure according to claim 7, characterized in that: The rotating shaft (4) is provided with a limiting step (28), and the pressing sleeve (15) is provided with a limiting flange (29) extending in the inner circumferential direction.

9. A regulating valve suitable for high water pressure according to claim 1, characterized in that: A micro switch (30) is installed on the valve body (1), and a cam (31) for cooperating with the micro switch (30) is installed on the rotating shaft (4).

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