CN219827903U - Pneumatic actuator with limiting valve - Google Patents
Pneumatic actuator with limiting valve Download PDFInfo
- Publication number
- CN219827903U CN219827903U CN202321137526.5U CN202321137526U CN219827903U CN 219827903 U CN219827903 U CN 219827903U CN 202321137526 U CN202321137526 U CN 202321137526U CN 219827903 U CN219827903 U CN 219827903U
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- Prior art keywords
- valve
- spring
- rod
- gas
- pressure sensor
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- 238000009434 installation Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Actuator (AREA)
Abstract
The utility model discloses a pneumatic actuator with a limit valve, which comprises a valve cover, wherein one end of a gas rod is inserted into the interior of a cylinder, a second spring is fixedly connected with the other end of the gas rod, a second pressure sensor is arranged on the inner wall of the valve cover and corresponds to the second spring, a first spring is sleeved outside the circumference of the middle part of the gas rod, a first pressure sensor is arranged at one end, close to the gas rod, of the cylinder, and a gas inlet and outlet assembly is arranged at the position, corresponding to the end, away from the second pressure sensor, of the cylinder. When the air cylinder is in air intake, one end of the air rod, which is far away from the air, is provided with the second spring, and the second pressure sensor which bears the pressure of the second spring, the position of the air rod, which is close to the end part of the air cylinder, is provided with the first spring, the end part of the air cylinder is provided with the first pressure sensor which bears the pressure of the first spring, and when the air intake and exhaust quantity reaches ninety degrees of reverse rotation of the ball body, the pressure sensor can control the air intake and exhaust component to stop exhausting through the controller, so that rigid resistance is not used, and damage to parts is avoided.
Description
Technical Field
The utility model relates to the technical field of starting actuators, in particular to a pneumatic actuator with a limiting valve.
Background
The pneumatic actuator is an actuating device for opening and closing or adjusting a valve by using air pressure, and is also called a pneumatic actuating mechanism or a pneumatic device, but is commonly called a pneumatic head, and sometimes is equipped with a certain auxiliary device, and the valve positioner and a hand wheel mechanism are commonly used.
In the prior art, when the ball body is opened, the pneumatic actuator generally directly enters air, and when the air rod impacts the inner wall of the valve cover, the air is stopped, otherwise, when the air is discharged, the air is stopped by rigid resistance, and the parts inside the valve body are damaged after the pneumatic actuator is used for a long time.
Disclosure of Invention
The utility model aims to provide a pneumatic actuator with a limit valve, which aims to solve the problem that in the prior art, rigid resistance is required to stop air outlet, and parts inside a valve body are damaged after long-term use of the rigid resistance.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the pneumatic actuator with the limit valve comprises a valve cover, wherein a valve rod is inserted into the valve cover, a driven bevel gear is fixedly connected to the upper end of the valve rod, a driving bevel gear is meshed with one side of the driven bevel gear, a driving rotating shaft is fixedly connected to the middle of the driving bevel gear, a gear is installed at the other end of the driving rotating shaft, a gas rod is arranged above the gear, a rack capable of being meshed with the gear is arranged on the lower surface of the gas rod, a cylinder is installed at one side, close to the gas rod, of the upper part of the interior of the valve cover, one end of the gas rod is inserted into the cylinder, a second spring is fixedly connected to the other end of the gas rod, a second pressure sensor is installed at a position, corresponding to the second spring, on the inner wall of the valve cover, of the middle circumference of the gas rod is sleeved with a first spring, a first pressure sensor is installed at one end, close to the gas rod, and a gas inlet and outlet assembly is installed at a position, corresponding to one end, far from the second pressure sensor, of the gas cylinder;
the air inlet and outlet assembly is characterized by further comprising a controller, wherein the detection values of the second pressure sensor and the first pressure sensor are both transmitted to the controller, and the controller controls the air inlet and outlet assembly to be opened and closed.
Preferably, the middle circumference outside rigid coupling of gas pole has the installation shoulder, the one end and the installation shoulder rigid coupling of first spring, and the other end of first spring installs first clamp plate, and first clamp plate slip cap is established in the circumference outside of gas pole.
Preferably, the inside cover of second spring is equipped with the guide bar, the inside of gas pole is offered and is led the guide hole of pole complex, the one end that the gas pole was kept away from to the guide bar is fixed with the second spring, and the second clamp plate is installed to the one end that the gas pole was kept away from to the guide bar.
Preferably, a main spring is mounted at one end of the air rod inserted into the cylinder.
Preferably, the valve further comprises a valve body, a ball body is arranged in the valve body, the valve cover is arranged at a position above the valve body, corresponding to the ball body, and the lower end of the valve rod is fixedly connected with the ball body.
Compared with the prior art, the utility model has the beneficial effects that: when the air cylinder is in air intake, one end of the air rod, which is far away from the air, is provided with the second spring, and the second pressure sensor, which bears the pressure of the second spring, when the air cylinder is in air exhaust, the position, which is close to the end part of the air cylinder, of the air rod is provided with the first spring, and the end part of the air cylinder is provided with the first pressure sensor, which bears the pressure of the first spring, when the air intake reaches ninety degrees of rotation of the ball body, the second pressure sensor can control the air inlet and outlet assembly to stop air intake through the controller, when the air exhaust reaches ninety degrees of reverse rotation of the ball body, the first pressure sensor can control the air inlet and outlet assembly to stop air exhaust through the controller, so that the aim of automatic limiting is fulfilled when the ball body rotates ninety degrees of rotation of the ball body, rigid resistance is not used, and damage to parts is avoided.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a side view of the installation of the gas stick of the present utility model.
In the figure: 1. a valve body; 2. a sphere; 3. a valve stem; 4. a valve cover; 5. a driven bevel gear; 6. a drive bevel gear; 7. an air bar; 8. a driving rotating shaft; 9. a gear; 10. a cylinder; 11. an air inlet and outlet assembly; 12. a first spring; 13. a first pressure sensor; 14. a guide hole; 15. a second spring; 16. a guide rod; 17. a second pressing plate; 18. a second pressure sensor; 19. a mounting shoulder; 20. a first platen; 21. a rack; 22. and a main spring.
Description of the embodiments
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.
Referring to fig. 1, in the embodiment of the utility model, a pneumatic actuator with a limit valve comprises a valve cover 4 and a valve body 1, wherein a ball body 2 is arranged in the valve body 1, the valve cover 4 is arranged above the valve body 1 and corresponds to the ball body 2, a valve rod 3 is inserted into the valve cover 4, the lower end of the valve rod 3 is fixedly connected with the ball body 2, when the valve rod 3 rotates, the ball body 2 can be driven to rotate, and when the ball body 2 rotates, the valve can be opened or closed;
referring to fig. 1, a driven bevel gear 5 is fixedly connected to the upper end of a valve rod 3, a driving bevel gear 6 is meshed with one side of the driven bevel gear 5, a driving rotating shaft 8 is fixedly connected to the middle part of the driving bevel gear 6, a gear 9 is installed at the other end of the driving rotating shaft 8, the driving rotating shaft 8 can be driven to rotate when the gear 9 rotates, the driving bevel gear 6 can be driven to rotate when the driving rotating shaft 8 rotates, the driven bevel gear 5 can be driven to rotate when the driving bevel gear 6 rotates, and then the valve rod 3 can be rotated, so that a ball body 2 can be opened or closed conveniently;
in order to enable the gear 9 to rotate, a gas rod 7 is arranged above the gear 9, a rack 21 capable of being meshed with the gear 9 is arranged on the lower surface of the gas rod 7, a cylinder 10 is arranged on one side, close to the gas rod 7, above the inner part of the valve cover 4, a cylinder 10 is arranged, one end of the gas rod 7 is inserted into the cylinder 10, a main spring 22 is arranged at one end, inserted into the cylinder 10, of the gas rod 7, a gas inlet and outlet assembly 11 is arranged at one end of the cylinder 10, compressed gas enters the cylinder 10, the compressed gas can push the gas rod 7 to move, so that a rack 21 below the gas rod 7 can push the gear 9 to rotate, finally, the gear 9 drives a driving shaft 8 to rotate, otherwise, when the gas inlet and outlet assembly 11 discharges gas, the main spring 22 contracts, the gas rod 7 can be pulled back, and then the rack 21 below can reversely push the gear 9, so that the driving shaft 8 can reversely rotate, and the ball 2 can reversely rotate;
the device is characterized by further comprising a controller, wherein the detection values of the second pressure sensor 18 and the first pressure sensor 13 are both transmitted to the controller, the controller controls the opening and closing of the air inlet and outlet assembly 11, in order to enable the air inlet and outlet assembly 11 to automatically stop air inlet or stop air outlet, a second spring 15 is fixedly connected to the other end of the air rod 7, a second pressure sensor 18 is arranged on the inner wall of the valve cover 4 at a position corresponding to the second spring 15, when the air inlet and outlet assembly 11 air inlet amount reaches ninety degrees capable of pushing the ball body 2 to rotate, the pressure of the second spring 15 presses the second pressure sensor 18 to reach a set value, the controller controls the air inlet and outlet assembly 11 to stop air inlet, a first spring 12 is sleeved outside the circumference of the middle part of the air rod 7, one end of the air cylinder 10 close to the air rod 7 is provided with the first pressure sensor 13, when the air outlet amount of the air inlet and outlet assembly 11 reaches ninety degrees capable of reversely pushing the ball body 2 to rotate, the pressure of the first spring 12 is given to the set value, and the controller controls the air inlet and outlet assembly 11 to stop air outlet;
as shown in fig. 2, in order to facilitate the installation of the first spring 12, an installation shoulder 19 is fixedly connected to the outer part of the circumference of the middle part of the air rod 7, one end of the first spring 12 is fixedly connected with the installation shoulder 19, the other end of the first spring 12 is provided with a first pressing plate 20, and the first pressing plate 20 is slidably sleeved outside the circumference of the air rod 7, so that when the pressure is applied to the first pressure sensor 13, the first pressing plate 20 is used for applying the pressure, and the uniform stress is ensured;
referring to fig. 2, a guide rod 16 is sleeved in the second spring 15, a guide hole 14 matched with the guide rod 16 is formed in the air rod 7 and used for guiding the second spring 15, one end, away from the air rod 7, of the guide rod 16 is fixedly connected with the second spring 15, a second pressing plate 17 is mounted at one end, away from the air rod 7, of the guide rod 16, and the second pressing plate 17 can enable the pressure, given to the second pressure sensor 18, of the second spring 15 to be relatively uniform.
The working principle and the using flow of the utility model are as follows: when the device is used, when the ball 2 is required to be rotated for ninety degrees to be opened, air enters the air inlet and outlet assembly 11, air can reach the inside of the air cylinder 10 to push the air rod 7, so that the rack 21 below the air rod 7 can push the gear 9 to rotate, and then the driving shaft 8 can rotate, so that the driving bevel gear 6 drives the driven bevel gear 5 to rotate, finally, the valve rod 3 drives the ball 3 to rotate, when the air inlet and outlet assembly 11 air inflow reaches the pressure which can push the ball 2 to rotate for ninety degrees, the second spring 15 presses the second pressure sensor 18 at the moment reaches a set value, and then the controller controls the air inlet and outlet assembly 11 to stop air inflow, when the ball 3 is required to rotate for ninety degrees reversely, the air inlet and outlet assembly 11 sucks air from the inside of the air cylinder 10, the main spring 22 at the moment rebounds to pull the air rod 7 back, and then the rack 21 below the air rod 7 can reversely push the gear 9, so that the driving shaft 8 reversely rotates, and when the air rod 7 returns to the pressure which enables the first spring 12 to give the first pressure sensor 13 to reach the set value, the controller controls the air inlet and outlet assembly 11 to stop.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (5)
1. The utility model provides a take limit valve pneumatic actuator, includes valve gap (4), its characterized in that: the novel valve is characterized in that a valve rod (3) is inserted into the valve cover (4), a driven bevel gear (5) is fixedly connected to the upper end of the valve rod (3), a driving bevel gear (6) is meshed with one side of the driven bevel gear (5), a driving rotating shaft (8) is fixedly connected to the middle part of the driving bevel gear (6), a gear (9) is installed at the other end of the driving rotating shaft (8), a gas rod (7) is arranged above the gear (9), a rack (21) capable of being meshed with the gear (9) is arranged on the lower surface of the gas rod (7), a cylinder (10) is installed on one side, close to the gas rod (7), of the upper part of the interior of the valve cover (4), one end of the gas rod (7) is inserted into the interior of the cylinder (10), a second spring (15) is fixedly connected to the other end of the gas rod (7), a second pressure sensor (18) is installed at a position corresponding to the second spring (15) on the inner wall of the valve cover (4), a first spring (12) is sleeved outside the middle part of the gas rod (7), a first end (10) is installed at a position, close to the first pressure sensor (13) of the gas rod (7), and a first end (11) is far away from the first pressure sensor (18);
the air inlet and outlet device further comprises a controller, wherein detection values of the second pressure sensor (18) and the first pressure sensor (13) are both transmitted to the controller, and the controller controls the opening and closing of the air inlet and outlet assembly (11).
2. The pneumatic actuator with limit valve of claim 1, wherein: the middle part circumference outside rigid coupling of gas pole (7) has installation shoulder (19), the one end and the installation shoulder (19) rigid coupling of first spring (12), and first clamp plate (20) are installed to the other end of first spring (12), and first clamp plate (20) slip cap is established in the circumference outside of gas pole (7).
3. The pneumatic actuator with limit valve of claim 1, wherein: the inside cover of second spring (15) is equipped with guide bar (16), guide bar (16) complex guiding hole (14) have been seted up to the inside of gas pole (7), one end and second spring (15) rigid coupling that gas pole (7) were kept away from to guide bar (16), and second clamp plate (17) are installed to one end that gas pole (7) was kept away from to guide bar (16).
4. The pneumatic actuator with limit valve of claim 1, wherein: one end of the air rod (7) inserted into the cylinder (10) is provided with a main spring (22).
5. The pneumatic actuator with limit valve of claim 1, wherein: the valve is characterized by further comprising a valve body (1), a ball body (2) is arranged in the valve body (1), a valve cover (4) is arranged above the valve body (1) and at a position corresponding to the ball body (2), and the lower end of the valve rod (3) is fixedly connected with the ball body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321137526.5U CN219827903U (en) | 2023-05-12 | 2023-05-12 | Pneumatic actuator with limiting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321137526.5U CN219827903U (en) | 2023-05-12 | 2023-05-12 | Pneumatic actuator with limiting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219827903U true CN219827903U (en) | 2023-10-13 |
Family
ID=88249202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321137526.5U Active CN219827903U (en) | 2023-05-12 | 2023-05-12 | Pneumatic actuator with limiting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219827903U (en) |
-
2023
- 2023-05-12 CN CN202321137526.5U patent/CN219827903U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |