Adjusting mechanism of electronic adjusting valve

Abstract

The invention relates to the field of regulating valves, and discloses an electronic regulating valve regulating mechanism which comprises a valve body, a valve seat is fixedly arranged on the inner wall of the valve body, a valve cover is in threaded connection with the valve body, a support is connected to the valve cover, and a driving motor and a control panel on the driving motor are fixedly installed on the valve body through the support. An output shaft of the driving motor is connected with a valve rod sleeve piece extending into the valve body, the bottom end of the valve rod sleeve piece is fixedly connected with a valve clack connected with the valve seat, a sealing mechanism is arranged between the valve seat and the valve clack, and a fluid adjusting mechanism is further arranged between the valve seat and the valve clack. Through the adjusting mechanism, the adjusting function of the electronic adjusting valve is simple, convenient, accurate and practical.

Description

Technical Field

[0001] The invention relates to the field of regulating valves, in particular to an electronic regulating valve regulating mechanism. Background Art

[0002] Electric control valves are important actuator instruments in industrial automation process control. With the increasing degree of automation in the industrial field, they are being used more and more in various industrial production fields. Compared with traditional pneumatic control valves, they have obvious advantages: electric control valves are energy-saving (only consume electricity when working), environmentally friendly (no carbon emissions), and quick and easy to install (no need for complex pneumatic pipelines and air pump workstations). Valves are divided into three types according to the power used by their actuators, their functions and characteristics: linear characteristics, equal percentage characteristics and parabolic characteristics; but the existing electric control valve's regulating mechanism directly adjusts the movement of the valve core through a stepper motor, which is difficult to control the accuracy, resulting in difficulty in accurately controlling the flow rate of engine propellant. For this reason, we propose an electronic control valve regulating mechanism. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides an electronic regulating valve regulating mechanism to solve the above-mentioned problems.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an electronic control valve adjustment mechanism, comprising a valve body, an inner wall of the valve body is fixedly provided with a valve seat, a valve cover is threadedly connected to the valve body, and a bracket is connected to the valve cover, the valve body is fixedly installed with a drive motor and a control panel on the drive motor through the bracket, the output shaft of the drive motor is connected to a valve stem kit extending to the inside of the valve body, the bottom end of the valve stem kit is fixedly connected to a valve disc connected to the valve seat, a sealing mechanism is provided between the valve seat and the valve disc, and a fluid adjustment mechanism is also provided between the valve seat and the valve disc.

[0005] Preferably, the valve stem kit includes a threaded screw and a threaded sleeve, the threaded screw output shaft is fixedly connected to the threaded screw, the threaded screw is threadedly sleeved with a threaded sleeve extending into the inside of the valve body, and the valve disc is fixedly mounted on the bottom end of the threaded sleeve.

[0006] Preferably, the valve body is provided with fluid through holes symmetrically arranged on both sides corresponding to the valve flap, a valve core through hole is provided at the center of the valve flap, an annular groove is provided on the upper half of the inner wall of the side surface of the valve core through hole corresponding to the valve flap, the valve flap is fitly engaged with the annular groove, and a sealing gasket is fixedly provided on the bottom outer wall of the valve flap and fits with the bottom annular inner wall of the annular groove.

[0007] Preferably, the inner diameter of the annular groove is larger than the inner diameter of the valve core through hole and is the same as the end face diameter of the valve disc, and the depth of the annular groove is half the depth of the valve core through hole and is the same as the thickness of the valve disc.

[0008] Preferably, a spring sleeved on the periphery of the threaded sleeve is fixedly connected between the top outer wall of the valve disc and the top inner wall of the valve body, and the spring is in an energy storage shape.

[0009] Preferably, the sealing mechanism includes a sealing groove and a sealing ring. A sealing groove is opened on the bottom annular inner wall of the annular groove. A sealing ring that is fitted and engaged with the sealing groove is fixed on the bottom outer wall of the valve flap corresponding to the inner wall of the annular groove. The cross-sections of the sealing groove and the bottom end part of the sealing ring are the same semicircle.

[0010] Preferably, the fluid regulating mechanism includes a plurality of layers of circular protrusion blocks, and the bottom outer wall of the valve disc is fixed with an integrated plurality of layers of circular protrusion blocks, the end surface diameters of the plurality of layers of the circular protrusion blocks gradually become shorter from top to bottom, and the circular protrusion blocks of the first layer at the bottom of the sealing ring are fitted and engaged with the inner wall of the valve core through hole, and the vertical cross-section of the valve disc is in an inverted stepped shape due to the arrangement of multiple groups of circular protrusion blocks.

[0011] Preferably, the circular raised blocks are arranged in at least three layers.

[0012] Preferably, the fluid regulating mechanism includes a scale plate and a pointer, a scale plate parallel to and aligned with the threaded sleeve is fixedly connected between the valve cover on the valve body and the bottom end of the drive motor, scale lines are engraved on the outer wall of the scale plate close to the threaded sleeve, and a pointer pointing to the scale lines on the scale plate is fixedly connected to the top of the side wall of the pointer.

[0013] Compared with the prior art, the present invention provides an electronic regulating valve regulating mechanism, which has the following beneficial effects:

[0014] 1. The regulating mechanism of the electronic regulating valve can brake the driving motor to drive the threaded screw to rotate when in use. According to the screw principle, the threaded sleeve can be displaced vertically and linearly, and the valve disc is displaced upward by the threaded sleeve, so that the valve disc is no longer in contact with the valve core through hole on the valve seat, thereby achieving the flowability inside the valve body. The pointer on the threaded sleeve and the scale plate on the valve body can be used to observe and control the vertical distance of the valve disc displacement driven by the threaded sleeve, thereby controlling whether the circular protrusion at the bottom of the valve disc is located in the valve core through hole. When the circular protrusion is located in the valve core through hole, it can be controlled which layer of the circular protrusion at the bottom of the valve disc is located in the valve core through hole. The diameter of each layer of the circular protrusion is different, and the spacing distance between the circular protrusion and the inner wall of the valve core through hole is different, that is, the size of the flow cross section is changed. According to the fluid formula, the flow rate can be adjusted by changing the flow cross section when the flow rate is unchanged, and the flow rate can be adjusted by changing the flow cross section when the flow rate is the same; the multifunctional adjustment is completed, and the adjustment function of the electronic regulating valve is simple, convenient, accurate and practical through the adjustment mechanism.

[0015] 2. The electronic regulating valve regulating mechanism, the electronic regulating valve can meet the initial sealing performance through the sealing gasket directly fixed on the valve disc and the valve seat, and the energy storage spring can always have a downward squeezing force on the valve disc, so that the sealing gasket at the bottom of the valve disc can fit tightly against the bottom inner wall of the annular groove on the valve seat, thereby improving the sealing performance of the electronic regulating valve, and at the same time, the sealing ring at the bottom of the valve disc is clamped with the sealing groove opened in the valve seat. At this time, the sealing ring can form a vertical barrier of the horizontal contact layer between the valve disc and the valve seat, thereby preventing the fluid from passing through the fitting part between the valve disc and the bottom inner wall of the annular groove, thereby improving the sealing performance of the electronic regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of the present invention;

[0017] Figure 2 The valve body of the present invention is schematically shown in cross section Figure 1 ;

[0018] Figure 3 The valve body of the present invention is schematically shown in cross section Figure 2 ;

[0019] Figure 4 for Figure 3 A local enlarged schematic diagram of point A in FIG.

[0020] Figure 5 It is a cross-sectional schematic diagram of the valve disc of the present invention;

[0021] Figure 6 for Figure 2 A local enlarged schematic diagram of point B in the figure.

[0022] In the figure: 1. valve body; 2. drive motor; 3. valve stem kit; 4. valve seat; 5. valve disc; 6. sealing mechanism; 7. fluid regulating mechanism; 8. threaded screw; 9. threaded sleeve; 10. spring; 11. sealing gasket; 12. annular groove; 13. valve core through hole; 14. sealing groove; 15. sealing ring; 16. circular raised block; 17. scale plate; 18. scale line; 19. pointer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 6, an electronic regulating valve regulating mechanism, including a valve body 1, a valve seat 4 is fixedly arranged on the inner wall of the valve body 1, a valve cover is threadedly connected to the valve body 1, and a bracket is connected to the valve cover, a driving motor 2 and a control panel on the driving motor 2 are fixedly installed on the valve body 1 through the bracket, an output shaft of the driving motor 2 is connected to a valve stem kit 3 extending to the inside of the valve body 1, a valve disc 5 connected to the valve seat 4 is fixedly connected to the bottom end of the valve stem kit 3, a sealing mechanism 6 is arranged between the valve seat 4 and the valve disc 5, and a fluid regulating mechanism 7 is also arranged between the valve seat 4 and the valve disc 5.

[0025] The valve stem kit 3 includes a threaded screw 8 and a threaded sleeve 9. The threaded screw 8 is fixedly connected to the output shaft of the threaded screw 8. The threaded sleeve 9 extending to the inside of the valve body 1 is threadedly sleeved on the threaded screw 8. The valve flap 5 is fixedly installed on the bottom end of the threaded sleeve 9. The brake drive motor 2 drives the threaded screw 8 to rotate. According to the screw principle, the threaded sleeve 9 can be displaced vertically. The valve flap 5 is driven to move upward by the threaded sleeve 9, so that the valve flap 5 is no longer in contact with the valve seat 4, thereby achieving flowability inside the valve body 1.

[0026] Symmetrical fluid through holes are provided on both sides of the valve body 1 corresponding to the valve disc 5, a valve core through hole 13 is provided at the center of the valve disc 5, an annular groove 12 is provided on the upper half of the inner wall of the side of the valve disc 5 corresponding to the valve core through hole 13, the valve disc 5 is fitly engaged with the annular groove 12, and a sealing gasket 11 is fixedly provided on the bottom outer wall of the valve disc 5 and fits with the bottom annular inner wall of the annular groove 12.

[0027] The inner diameter of the annular groove 12 is larger than the inner diameter of the valve core through hole 13 and is the same as the end diameter of the valve flap 5 , and the depth of the annular groove 12 is half the depth of the valve core through hole 13 and is the same as the thickness of the valve flap 5 .

[0028] A spring 10 sleeved on the periphery of the threaded sleeve 9 is fixedly connected between the top outer wall of the valve disc 5 and the top inner wall of the valve body 1, and the spring 10 is in an energy storage state. The spring 10 is in the energy storage state, that is, it is in a compressed state and is not completely compressed. The energy storage spring 10 can always exert a downward squeezing force on the valve disc 5, so that the sealing gasket 11 at the bottom of the valve disc 5 can fit tightly against the bottom inner wall of the annular groove 12 on the valve seat 4, thereby improving the sealing performance of the electronic control valve.

[0029] The sealing mechanism 6 includes a sealing groove 14 and a sealing ring 15. A sealing groove 14 is provided on the annular inner wall at the bottom of the annular groove 12. A sealing ring 15 that is in contact with the sealing groove 14 is fixed on the outer wall of the bottom end of the valve flap 5 corresponding to the inner wall of the annular groove 12. The sealing groove 14 and the bottom end of the sealing ring 15 have the same semicircular cross-section. The sealing groove 14 and the sealing ring 15 are in contact with the sealing groove 14 provided in the valve seat 4 through the sealing ring 15 at the bottom of the valve flap 5. At this time, the sealing ring 15 can form a vertical barrier of the lateral contact layer between the valve flap 5 and the valve seat 4, thereby preventing the fluid from passing through the contact area between the valve flap 5 and the bottom inner wall of the annular groove 12, thereby improving the sealing of the electronic control valve. In addition, the cross-section of the bottom end of the sealing ring 15 is the same semicircular, which is convenient for the sealing ring 15 to be engaged in the sealing groove 14 when the valve flap 5 moves down to the chalk valve seat 4.

[0030] The fluid regulating mechanism 7 includes a plurality of layers of circular protrusions 16. An integrated plurality of layers of circular protrusions 16 are fixedly provided on the bottom outer wall of the valve disc 5. The end face diameters of the plurality of layers of circular protrusions 16 gradually shorten from top to bottom. The circular protrusions 16 of the first layer at the bottom of the sealing ring 15 are fitted and engaged with the inner wall of the valve core through hole 13. The vertical cross section of the valve disc 5 is in an inverted stepped shape through the arrangement of the plurality of groups of circular protrusions 16. When the circular protrusions 16 are located in the valve core through hole 13, it is possible to control which layer of the circular protrusions 16 at the bottom of the valve disc 5 is located in the valve core through hole 13. By having different diameters of each layer of circular protrusions 16, the spacing distances between the circular protrusions 16 and the inner wall of the valve core through hole 13 are different, that is, the size of the flow cross section is changed. According to the fluid formula, the flow rate can be adjusted by changing the flow cross section when the flow rate remains unchanged, and the flow rate can be adjusted by changing the flow cross section when the flow rate is the same; multifunctional adjustment is completed, and the adjustment function of the electronic control valve is simple, convenient and practical through the adjustment mechanism.

[0031] The circular raised blocks 16 are arranged in at least three layers.

[0032] The fluid regulating mechanism No. 7 includes a scale plate 17 and a pointer 19. A scale plate 17 parallel to and aligned with the threaded sleeve 9 is fixedly connected between the valve cover on the valve body 1 and the bottom end of the driving motor 2. A scale line 18 is engraved on the outer wall of the scale plate 17 close to the threaded sleeve 9. A pointer 19 pointing to the scale line 18 on the scale plate 17 is fixedly connected to the top of the side wall of the pointer 19. Through the pointer 19 on the threaded sleeve 9 and the scale plate 17 on the valve body 1, the vertical distance of the displacement of the valve disc 5 driven by the threaded sleeve 9 can be observed and controlled, thereby controlling whether the circular protrusion 16 at the bottom of the valve disc 5 is located in the valve core through hole 13.

[0033] Working principle: When the valve body 1 is in a closed state, the electronic regulating valve can meet the initial sealing performance through the sealing gasket 11 directly fixed between the valve disc 5 and the valve seat 4, and the energy storage spring 10 can always exert a downward squeezing force on the valve disc 5, that is, the sealing gasket 11 at the bottom of the valve disc 5 can be tightly fitted with the bottom inner wall of the annular groove 12 on the valve seat 4, thereby improving the sealing performance of the electronic regulating valve. At the same time, the sealing ring 15 at the bottom of the valve disc 5 is clamped with the sealing groove 14 opened in the valve seat 4. At this time, the sealing ring 15 can form a vertical barrier of the horizontal contact layer between the valve disc 5 and the valve seat 4, thereby preventing the fluid from passing through the fitting point between the valve disc 5 and the bottom inner wall of the annular groove 12, thereby improving the sealing performance of the electronic regulating valve; when in use, the brake drive motor 2 can drive the threaded screw 8 to rotate, and according to the screw principle, the threaded sleeve 9 can be vertically displaced linearly, and the valve disc 5 is driven to move upward through the threaded sleeve 9. , so that the valve disc 5 is no longer in contact with the valve core through hole 13 on the valve seat 4, thereby achieving the flowability inside the valve body 1, and the vertical distance of the displacement of the valve disc 5 driven by the threaded sleeve 9 can be observed and controlled through the pointer 19 on the threaded sleeve 9 and the scale plate 17 on the valve body 1, thereby controlling whether the circular protrusion 16 at the bottom of the valve disc 5 is located in the valve core through hole 13, and when the circular protrusion 16 is located in the valve core through hole 13, it can be controlled which layer of the circular protrusion 16 at the bottom of the valve disc 5 is located in the valve core through hole 13, and by the different diameters of each layer of circular protrusions 16, the spacing distance between the inner wall of the valve core through hole 13 is different, that is, the size of the flow cross section is changed. According to the fluid formula, the flow rate can be adjusted by changing the flow cross section when the flow rate is unchanged, and the flow rate can be adjusted by changing the flow cross section when the flow rate is the same; the multifunctional adjustment is completed, and the adjustment function of the electronic control valve is simple, convenient and practical through the adjustment mechanism.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electronic regulating valve regulating mechanism, comprising a valve body (1), the inner wall of the valve body (1) being fixedly provided with a valve seat (4), the valve body (1) being threadedly connected with a valve cover, the valve cover being connected with a bracket, the valve body (1) being fixedly provided with a drive motor (2) and a control panel on the drive motor (2) via the bracket, characterized in that: The output shaft of the driving motor (2) is connected to a valve stem kit (3) extending into the interior of the valve body (1); the bottom end of the valve stem kit (3) is fixedly connected to a valve flap (5) connected to a valve seat (4); a sealing mechanism (6) is provided between the valve seat (4) and the valve flap (5); and a fluid regulating mechanism (7) is also provided between the valve seat (4) and the valve flap (5).

2. The electronic regulating valve regulating mechanism according to claim 1, characterized in that: The valve stem kit (3) comprises a threaded screw (8) and a threaded sleeve (9); the threaded screw (8) is fixedly connected to the output shaft of the threaded screw (8); the threaded sleeve (9) is threadedly sleeved on the threaded screw (8) and extends into the interior of the valve body (1); and the valve flap (5) is fixedly mounted on the bottom end of the threaded sleeve (9).

3. The electronic regulating valve regulating mechanism according to claim 1, characterized in that: The valve body (1) is provided with fluid through holes symmetrically arranged on both sides corresponding to the valve flap (5), a valve core through hole (13) is provided at the center of the valve flap (5), an annular groove (12) is provided on the upper half of the inner wall of the side surface of the valve flap (5) corresponding to the valve core through hole (13), the valve flap (5) is fitted and engaged with the annular groove (12), and a sealing gasket (11) is fixedly arranged on the bottom outer wall of the valve flap (5) and fits with the bottom annular inner wall of the annular groove (12).

4. The electronic regulating valve regulating mechanism according to claim 3, characterized in that: The inner diameter of the annular groove (12) is greater than the inner diameter of the valve core through hole (13) and is the same as the end face diameter of the valve flap (5), and the depth of the annular groove (12) is half the depth of the valve core through hole (13) and is the same as the thickness of the valve flap (5).

5. The electronic regulating valve regulating mechanism according to claim 2, characterized in that: A spring (10) sleeved on the periphery of a threaded sleeve (9) is fixedly connected between the top outer wall of the valve flap (5) and the top inner wall of the valve body (1), and the spring (10) is in an energy storage state.

6. The electronic regulating valve regulating mechanism according to claim 3, characterized in that: The sealing mechanism (6) comprises a sealing groove (14) and a sealing ring (15); the sealing groove (14) is provided on the bottom annular inner wall of the annular groove (12); the sealing ring (15) is fixedly provided on the bottom outer wall of the valve flap (5) corresponding to the inner wall of the annular groove (12) and is engaged with the sealing groove (14); the cross-sections of the bottom ends of the sealing groove (14) and the sealing ring (15) are the same semicircular.

7. The electronic regulating valve regulating mechanism according to claim 3, characterized in that: The fluid regulating mechanism (7) comprises a plurality of layers of circular protrusions (16), and the bottom outer wall of the valve flap (5) is fixedly provided with an integrated plurality of layers of circular protrusions (16). The diameter of the end faces of the plurality of layers of circular protrusions (16) gradually decreases from top to bottom, and the first layer of circular protrusions (16) at the bottom of the sealing ring (15) is fitted and clamped with the inner wall of the valve core through hole (13). The vertical cross section of the valve flap (5) is in an inverted stepped shape due to the arrangement of the plurality of groups of circular protrusions (16).

8. The electronic regulating valve regulating mechanism according to claim 7, characterized in that: The circular raised blocks (16) are arranged in at least three layers.

9. The electronic regulating valve regulating mechanism according to claim 2, characterized in that: The fluid regulating mechanism (7) comprises a scale plate (17) and a pointer (19); a scale plate (17) parallel to and aligned with the threaded sleeve (9) is fixedly connected between the valve cover on the valve body (1) and the bottom end of the drive motor (2); a scale line (18) is engraved on the outer wall of the scale plate (17) on a side close to the threaded sleeve (9); and a pointer (19) pointing to the scale line (18) on the scale plate (17) is fixedly connected to the top end of the side wall of the pointer (19).

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