CN220396514U - Self-operated valve actuator - Google Patents
Self-operated valve actuator Download PDFInfo
- Publication number
- CN220396514U CN220396514U CN202322022175.XU CN202322022175U CN220396514U CN 220396514 U CN220396514 U CN 220396514U CN 202322022175 U CN202322022175 U CN 202322022175U CN 220396514 U CN220396514 U CN 220396514U
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- piston
- valve
- driver shell
- self
- driver
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- 238000007789 sealing Methods 0.000 claims abstract description 17
- 230000009471 action Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model discloses a self-operated valve driver, which relates to the technical field of self-operated valves and comprises a driver shell and a valve body, and is characterized in that: the inside of driver shell is equipped with the piston, the piston is equipped with two step action faces, guide mouth 3a has been seted up to the one end of piston, the second step face of piston is equipped with piston locking ring 3b, the valve rod guiding hole has been seted up to the other end of piston, be equipped with one-way sealing washer between the inner wall of first step face and the driver shell of piston, be equipped with sealing washer two between the inner wall of second step face and the driver shell of piston. The device is not contacted with the valve rod of the stop valve in the starting process, and when the set pressure is reached, the driver piston rapidly pushes the valve rod downwards, so that the valve core of the stop valve is opened or closed, the problem that the valve path of the valve is gradually reduced or increased in the opening or closing process of the valve core is avoided, the constant flow output is ensured, and the valve can be rapidly opened or closed under constant pressure.
Description
Technical Field
The utility model relates to the technical field of self-operated valves, in particular to a self-operated valve driver.
Background
The self-operated valve is an energy-saving control device which can automatically regulate according to preset set value by using the pressure of the regulated medium as power source and its medium pressure change and adopting various functions of detection, control and execution as one valve, and is self-formed into an independent instrument control system, and the valve driver is a device for opening and closing valve by using external driving force and connecting with valve, and its application driver can be used for making valve operation simple and convenient and saving effort.
The traditional self-operated valve drives a driver through the pressure at the front end or the rear end of the valve, when a system pipeline reaches a certain pressure, the driver gradually closes the valve, the action speed of the valve depends on the speed of pressure increase or decrease, the valve drift diameter is gradually increased or decreased in the action process of the driver, the output flow is not constant, and the valve is not suitable for a self-operated valve system with constant flow and constant pressure and quick opening or closing.
Disclosure of Invention
The utility model aims to provide a self-operated valve driver, which solves the problems that the conventional self-operated valve in the background art is driven by the pressure at the front end or the rear end of the valve, the driver gradually closes the valve after a system pipeline reaches a certain pressure, the action speed depends on the speed of pressure increase or decrease, the valve path is gradually increased or decreased in the action process of the driver, the output flow is not constant, and the self-operated valve is not suitable for a self-operated valve system with constant flow and constant pressure and quick opening or closing.
In order to achieve the above purpose, the present utility model provides the following technical solutions: self-operated valve actuator, including actuator housing and valve body, its characterized in that: the inside of driver shell is equipped with the piston, the piston is equipped with two step action faces, guide mouth 3a has been seted up to the one end of piston, the second step face of piston is equipped with piston locking ring 3b, the valve rod guiding hole has been seted up to the other end of piston, be equipped with one-way sealing washer between the inner wall of first step face and the driver shell of piston, be equipped with sealing washer two between the inner wall of second step face and the driver shell of piston, the downside threaded connection of driver shell inner wall has the adjusting ring, the top surface of adjusting ring and the lower extreme of piston are equipped with adjusting spring one jointly, the excircle of driver shell is equipped with stop gear.
Preferably, the limit mechanisms are not less than 2 and uniformly distributed on the excircle of the driver shell, the limit mechanisms comprise adjusting plugs which are in threaded connection with the surface of the driver shell, one ends of the adjusting plugs are provided with sealing rings III, the inner walls of the adjusting plugs are provided with adjusting springs II, and one sides of the inner walls of the adjusting plugs are all in sliding connection with steel balls.
Preferably, the surfaces of the steel balls are respectively contacted with one end of the corresponding first adjusting spring, and the surfaces of the two steel balls are respectively contacted with the second step surface of the piston.
Preferably, the bottom surface of the driver shell is fixedly connected with the top surface of the valve body through bolts.
Preferably, a valve rod of the valve body component part of the valve extends into an inner hole at the lower end of the piston in the driver shell, and a gap a is reserved between the valve rod and the upper side of the inner hole at the lower end of the piston.
Preferably, a valve body spring is arranged on the upper side of the valve body valve rod wall, so that the basic use function of the device is ensured.
Preferably, the surfaces of the driver shell and the valve body are coated with red lead antirust paint, so that the device has an antirust function, and the service life of the device is prolonged.
The utility model has the technical effects and advantages that:
1. through setting up driver shell, valve body, piston, leading mouth, piston lock ring, unidirectional seal circle, sealing washer two, adjusting ring, adjusting spring one, adjusting screw plug, sealing washer three, adjusting spring two, steel ball, this equipment is at the start-up process not with the stop valve rod contact, when reaching the settlement pressure, driver piston promotes the valve rod downwards fast to open or close the stop valve case, avoided the case to open or close the in-process, the valve latus rectum reduces or increases the problem gradually, guarantee the invariable of flow output and can open or close the valve fast with the constant pressure.
2. Through setting up steel ball, adjusting spring one, piston, make the connection between each device in the equipment inseparabler, guarantee the stability of equipment in the use, improve the performance and the result of use of equipment.
3. Through setting up driver shell, valve body valve rod, piston, valve body spring, guarantee the basic service function of equipment, make equipment possess rust-resistant function, improve the life of equipment.
Drawings
Fig. 1 is a schematic view of a front sectional structure of a normally open valve in an unactuated state of the present utility model.
Fig. 2 is a schematic front sectional view showing a start operation state of the actuator piston according to the present utility model.
Fig. 3 is a schematic diagram showing a front sectional structure of a normally open valve in a closed state.
Fig. 4 is a schematic perspective view of an adjusting screw plug according to the present utility model.
In the figure: 1. a driver housing; 2. a one-way sealing ring; 3. a piston; 3a, a pilot port; 3b, a piston locking ring; 4. a second sealing ring; 5. an adjusting spring I; 6. an adjusting ring; 7. a valve body; 8. adjusting the plug; 9. an adjusting spring II; 10. a steel ball; 11. a third sealing ring; 7a, valve body springs; 7b, valve body valve rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a self-operated valve driver as shown in figures 1-4, which comprises a driver shell 1 and a valve body 7, wherein a piston 3 is arranged in the driver shell 1, the piston 3 has stronger tightness, so that air pressure difference is generated during use, air pressure is obtained, normal use of equipment is ensured, the piston 3 is provided with two step action surfaces, one end of the piston 3 is provided with a guide port 3a, a second step surface of the piston 3 is provided with a piston locking ring 3b, the other end of the piston 3 is provided with a valve rod guide hole, a one-way sealing ring 2 is arranged between the first step surface of the piston 3 and the inner wall of the driver shell 1, a sealing ring two 4 is arranged between the second step surface of the piston 3 and the inner wall of the driver shell 1, the lower side of the inner wall of the driver shell 1 is connected with an adjusting ring 6 through threads, the top surface of adjusting ring 6 and the lower extreme of piston 3 are equipped with adjusting spring one 5 jointly, the excircle of driver shell 1 is equipped with stop gear, stop gear includes the regulation plug 8 with the surface threaded connection of driver shell 1, the one end of adjusting plug 8 is equipped with sealing washer three 11, the inner wall of adjusting plug 8 is equipped with adjusting spring two 9, one side of adjusting plug 8 inner wall all sliding connection has steel ball 10, this equipment is at the start-up process not with stop valve rod contact, when reaching the settlement pressure, driver piston 3 promotes the valve rod downwards fast, thereby open or close the stop valve case, the valve case is opening or closing the in-process, the valve latus rectum reduces gradually or the problem of increaseing, guarantee the invariable of flow output and can open or close the valve fast of constant pressure.
As shown in fig. 2, the surface of the steel ball 10 is respectively contacted with one end of the corresponding first adjusting spring 5, the surface of the steel ball 10 is respectively contacted with the second step surface of the piston 3, the bottom surface of the driver shell 1 is fixedly connected with the top surface of the valve body 7 through bolts, the valve body valve rod 7b in the component parts of the valve body 7 stretches into the inner hole at the lower end of the piston 3 in the driver shell 1 and is provided with a gap a with the upper side of the inner hole at the lower end of the piston 3, the upper side of the rod wall of the valve body valve rod 7b is provided with a valve body spring 7a, and the surfaces of the driver shell 1 and the valve body 7 are coated with red lead antirust paint, so that all devices in the device are more tightly connected, the stability of the device in the use process is ensured, the service performance and the use effect of the device are improved, the basic use function of the device is ensured, the device has the antirust function and the service life of the device is prolonged.
The working principle of the utility model is as follows: the piston 3 is provided with two step acting surfaces, the air pressure is input through the pilot air inlet to act on the first step acting surface of the piston 3 to form acting force F1, when the acting force F1 is larger than the reaction force F3 of the first 5 of the regulating spring, the piston 3 starts to move downwards, when the piston 3 moves downwards to a distance b, the pilot opening 3a of the piston 3 passes through the one-way sealing ring 2 to enable the air pressure to act on the second step acting surface of the piston 3 to form acting force F2, the acting forces F1 and F2 overcome the reaction force F3 of the first 5 of the regulating spring and the reaction force F4 of the valve body spring 7a, the valve body valve rod 7b is pushed to move downwards quickly to a distance c to enable the valve body to be sealed, meanwhile, the steel ball 10 slides into the piston locking ring 3b, the regulating spring II acts on the steel ball 10, the steel ball 10 pushes against the inclined surface of the piston locking ring 3b to enable the piston 3 to obtain downward thrust F5, at the moment, the downward thrust of the piston 3 is F1+F2+F5, and the reaction force F4 in the pipeline is the upward thrust F6 of the air pressure acting on the sealing surface of the valve body;
principle of quick opening: the acting forces of F1 and F2 are reduced along with the reduction of the pilot air inlet pressure, when the reaction force reduced to the initial state of the first regulating spring 5 is larger than F1, the resultant force of F3+F4+F6 is larger than the resultant force of F1+F2+F5, the piston 3 moves upwards, the steel ball 10 is separated from the piston locking ring 3b, the steel ball 10 acts on the circumferential plane of the piston 3, the downward thrust F5 is eliminated, and the upward thrust of the piston 3 is increased to enable the piston 3 to quickly move upwards to reset.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. Self-operated valve actuator, including driver shell (1) and valve body (7), its characterized in that: the inside of driver shell (1) is equipped with piston (3), piston (3) are equipped with two step action faces, guide mouth (3 a) has been seted up to the one end of piston (3), the second step face of piston (3) is equipped with piston locking ring (3 b), the valve rod guiding hole has been seted up to the other end of piston (3), be equipped with unidirectional seal circle (2) between the inner wall of the first step face of piston (3) and driver shell (1), be equipped with sealing washer two (4) between the inner wall of the second step face of piston (3) and driver shell (1), the downside threaded connection of driver shell (1) inner wall has adjusting ring (6), the top surface of adjusting ring (6) and the lower extreme of piston (3) are equipped with adjusting spring one (5) jointly, the excircle of driver shell (1) is equipped with stop gear.
2. A self-contained valve actuator as defined in claim 1, wherein: the limiting mechanisms are not less than 2 and uniformly distributed on the outer circle of the driver shell (1), the limiting mechanisms comprise adjusting plugs (8) which are in threaded connection with the surface of the driver shell (1), one ends of the adjusting plugs (8) are provided with sealing rings III (11), the inner walls of the adjusting plugs (8) are provided with adjusting springs II (9), and one sides of the inner walls of the adjusting plugs (8) are slidably connected with steel balls (10).
3. A self-contained valve actuator as defined in claim 2, wherein: the surfaces of the steel balls (10) are respectively contacted with one end of the corresponding first adjusting spring (5), and the surfaces of the steel balls (10) are respectively contacted with the second step surface of the piston (3).
4. A self-contained valve actuator as defined in claim 1, wherein: the bottom surface of the driver shell (1) is fixedly connected with the top surface of the valve body (7) through bolts.
5. A self-contained valve actuator as defined in claim 1, wherein: a valve rod (7 b) of the valve body (7) of the valve component part extends into an inner hole at the lower end of the piston (3) in the driver shell (1), and a gap a is reserved between the valve rod and the upper side of the inner hole at the lower end of the piston (3).
6. A self-contained valve actuator as defined in claim 5, wherein: the upper side of the valve rod wall of the valve body valve rod (7 b) is provided with a valve body spring (7 a).
7. A self-contained valve actuator as defined in claim 1, wherein: the surfaces of the driver shell (1) and the valve body (7) are coated with red lead antirust paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322022175.XU CN220396514U (en) | 2023-07-31 | 2023-07-31 | Self-operated valve actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322022175.XU CN220396514U (en) | 2023-07-31 | 2023-07-31 | Self-operated valve actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220396514U true CN220396514U (en) | 2024-01-26 |
Family
ID=89604313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322022175.XU Active CN220396514U (en) | 2023-07-31 | 2023-07-31 | Self-operated valve actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220396514U (en) |
-
2023
- 2023-07-31 CN CN202322022175.XU patent/CN220396514U/en active Active
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