CN221034217U

CN221034217U - Automatic reset valve electric actuator with power-off function

Info

Publication number: CN221034217U
Application number: CN202322647798.6U
Authority: CN
Inventors: 董年益; 窦富平
Original assignee: Ropo Valve Yixing Co ltd
Current assignee: Ropo Valve Yixing Co ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2024-05-28
Anticipated expiration: 2033-09-27

Abstract

The utility model relates to the technical field of valve electric actuators and discloses an automatic reset valve electric actuator with a power-off function, which comprises a case, wherein an inner cavity is formed in the middle of the case, outer cavities are formed in two sides of the case, a servo motor is fixedly connected to the upper surface of the case, the output end of the servo motor is fixedly connected with a driving shaft which is positioned in the inner cavity, the bottom end of the driving shaft is fixedly connected with a switching shaft, the bottom end of the switching shaft is fixedly connected with an output shaft, an inner wall of the inner cavity is fixedly connected with an inner positioning rod, a first gear row is slidingly connected to the surface of the inner positioning rod on the left side, and a second gear row is slidingly connected to the surface of the inner positioning rod on the right side. The automatic reset valve electric actuator with the power-off function can drive the valve core to rotate and close through the device when the valve core cannot be closed by itself due to faults through fixedly connecting the output shaft with the valve core, so that property loss is avoided.

Description

Automatic reset valve electric actuator with power-off function

Technical Field

The utility model relates to the technical field of valve electric actuators, in particular to an automatic reset valve electric actuator with a power-off function.

Background

The valve and the electric executing device are combined into an electric valve through selection, so that the pipeline switching-on and switching-off operation function is realized, a remote control signal and a feedback signal are provided for the system, the switching-on and switching-off action speed of the electric valve can be adjusted, the structure is simple, the maintenance is easy, and the electric valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like;

In some special use scenarios, the electric valve needs electric power to provide a control signal and a power source, if the electric power fails and is powered off, the valve may not be closed automatically, the failure rate of the equipment may be further increased, and even a certain danger may exist and the equipment may be damaged.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides an automatic reset valve electric actuator with a power-off function, which solves the problem that the electric valve is inconvenient to automatically close when power is off.

In order to achieve the aim of being convenient for self-closing when the electric valve is powered off, the utility model provides the following technical scheme: the automatic reset valve electric actuator with the power-off function comprises a case, an inner cavity is formed in the middle of the case, outer cavities are formed in two sides of the case, a servo motor is fixedly connected to the upper surface of the case, a driving shaft is fixedly connected to the output end of the servo motor and located in the inner cavity, a switching shaft is fixedly connected to the bottom end of the driving shaft, an output shaft is fixedly connected to the bottom end of the switching shaft, an inner cavity wall is fixedly connected with an inner positioning rod, a first tooth row is slidingly connected to the surface of the inner positioning rod on the left side, and a second tooth row is slidingly connected to the surface of the inner positioning rod on the right side;

The utility model discloses a gear rack, including first tooth row and second tooth row, the bottom surface of first tooth row and second tooth row is all fixedly connected with spacing ejector pin, the first tooth row of one end that interior pole was kept away from to first tooth row and second tooth row is all fixedly connected with first electromagnetic plate, the inner wall sliding connection of outer cavity has outer fixed pole, the terminal surface fixedly connected with second electromagnetic plate of outer fixed pole, the surface activity of outer fixed pole has cup jointed first spring, the inner wall downside fixedly connected with adapter block of inner cavity, the terminal surface of adapter block is connected with pneumatic pole through the rotation of round pin, the inboard one end of pneumatic pole is connected with the telescopic link through the bearing ring rotation, the top rotation of telescopic link is connected with the fluted disc, the bottom surface swing joint of fluted disc has spacing sill bar, the upper surface of spacing sill bar has seted up the bonding recess to with spacing ejector pin swing joint, the surface activity of adapter shaft has cup jointed the second spring, the surface fixedly connected with stop collar, the surface fixedly connected with of stop collar has the upper position sensor, the upper end surface fixedly connected with lower position sensor of fluted disc.

Preferably, the end face of the fluted disc is provided with a rectangular groove, the fluted disc is in sliding connection with the limiting sleeve through the rectangular groove, and the upper position sensor is matched with the lower position sensor.

Preferably, two ends of the second spring are fixedly connected with the limiting bottom rod and the inner bottom surface of the inner cavity, and two ends of the first spring are in contact with the second electromagnetic plate and the inner wall of the outer cavity.

Preferably, the first gear row and the second gear row are positioned at two sides of the fluted disc and meshed with the fluted disc.

Preferably, the first tooth row and the second tooth row penetrate through the inner cavity and extend to the inside of the outer cavity, and the first electromagnetic plate and the second electromagnetic plate are magnetically attracted.

Preferably, the servo motor, the first electromagnetic plate and the second electromagnetic plate are electrically connected with an external power supply, the pneumatic rod is connected with an external air cylinder, and the servo motor, the power supply and the air cylinder are electrically connected with an external controller.

Compared with the prior art, the utility model provides the automatic reset valve electric actuator with the power-off function, which has the following beneficial effects:

1. The automatic reset valve electric actuator with the power-off function is characterized in that the first electromagnetic plate and the second electromagnetic plate are electrified with an external power supply, and the first electromagnetic plate and the second electromagnetic plate are attracted with each other in a magnetic mode, so that the first gear row can move rightwards, the second gear row can move leftwards, the gear disc can drive the switching shaft and the output shaft to rotate through the opposite movement of the first gear row and the second gear row, and the external valve core is closed.

2. This automatic reset valve electric actuator with outage function stretches and promotes spacing sill bar to reciprocate through the second spring, and spacing sill bar promotes the fluted disc to reciprocate, and the telescopic link stretches, simultaneously, the pneumatic lever of both sides stretches or contracts simultaneously, and drive the fluted disc and rotate, and fluted disc pivoted in-process, when last position sensor and lower position sensor sense each other's position, the pneumatic lever of both sides stops stretching or contracting this moment, the fluted disc no longer rotates promptly, at this moment the fluted disc is along stop collar axial upward movement, the first tooth row and the second tooth row of both sides mesh with the fluted disc this moment, and drive the fluted disc and rotate, the stop collar carries out spacingly to the ascending direction of fluted disc and makes it no longer upwards move simultaneously, and the fluted disc can drive the drive shaft through the stop collar and rotate, and then the drive shaft can drive outside case through the adapter shaft and rotate, and close outside case.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a view showing the first and second rows of teeth separated from the toothed disc according to the present utility model;

FIG. 3 is a diagram showing the engagement of the first and second rows of teeth with the toothed plate according to the present utility model;

fig. 4 is an enlarged schematic view of a portion of the structure of fig. 3 a according to the present utility model.

Wherein: 1. a chassis; 2. an inner cavity; 3. an outer cavity; 4. a servo motor; 5. a drive shaft; 6. a transfer shaft; 7. an output shaft; 8. an inner positioning rod; 9. a first row of teeth; 10. a second row of teeth; 11. limiting ejector rod; 12. a first electromagnetic plate; 13. an outer fixed rod; 14. a second electromagnetic plate; 15. a first spring; 16. a transfer block; 17. a pneumatic lever; 18. a telescopic rod; 19. fluted disc; 20. a limiting bottom rod; 21. a coupling groove; 22. a second spring; 23. a limit sleeve; 24. an upper position sensor; 25. a lower position sensor.

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.

Referring to fig. 1-4, the utility model provides an automatic reset valve electric actuator with a power-off function, which comprises a case 1, wherein an inner cavity 2 is arranged in the middle of the case 1, outer cavities 3 are arranged at two sides of the case 1, a servo motor 4 is fixedly connected to the upper surface of the case 1, the output end of the servo motor 4 is fixedly connected with a driving shaft 5 which is positioned in the inner cavity 2, the bottom end of the driving shaft 5 is fixedly connected with a switching shaft 6, the bottom end of the switching shaft 6 is fixedly connected with an output shaft 7, an inner positioning rod 8 is fixedly connected to the upper side of the inner wall of the inner cavity 2, a first gear row 9 is slidingly connected to the surface of the left inner positioning rod 8, and a second gear row 10 is slidingly connected to the surface of the right inner positioning rod 8;

The bottom surfaces of the first tooth row 9 and the second tooth row 10 are fixedly connected with a limit ejector rod 11, one ends of the first tooth row 9 and the second tooth row 10, which are far away from the inner positioning rod 8, are fixedly connected with a first electromagnetic plate 12, the inner wall of the outer cavity 3 is slidably connected with an outer positioning rod 13, the end surface of the outer positioning rod 13 is fixedly connected with a second electromagnetic plate 14, the surface of the outer positioning rod 13 is movably sleeved with a first spring 15, the lower side of the inner wall of the inner cavity 2 is fixedly connected with a transfer block 16, the end surface of the transfer block 16 is rotationally connected with a pneumatic rod 17 through a rotary pin, one end of the inner side of the pneumatic rod 17 is rotationally connected with a telescopic rod 18 through a bearing ring, the top end of the telescopic rod 18 is rotationally connected with a fluted disc 19, the bottom surface of the fluted disc 19 is movably connected with a limit bottom rod 20, the upper surface of the limit bottom rod 20 is provided with a combination groove 21, and with spacing ejector pin 11 swing joint, the surface activity of adapter shaft 6 has cup jointed second spring 22, the surface fixedly connected with stop collar 23 of drive shaft 5, the surface fixedly connected with of stop collar 23 goes up position sensor 24, the up end fixedly connected with of fluted disc 19 down position sensor 25, when servo motor 4 outage breaks down and can't drive outside case and rotate and close, simultaneously, first electromagnetic plate 12 and second electromagnetic plate 14 are with external power source circular telegram, and make first electromagnetic plate 12 and second electromagnetic plate 14 magnetism inhale mutually, therefore can make first tooth row 9 move rightwards, make second tooth row 10 move leftwards, so that follow-up through first tooth row 9 and the relative removal of second tooth row 10, can make fluted disc 19 drive adapter shaft 6 and output shaft 7 rotation, and close outside case.

Further, rectangular grooves are formed in the end face of the fluted disc 19, the fluted disc 19 is slidably connected with the limiting sleeve 23 through the rectangular grooves, the upper position sensor 24 is matched with the lower position sensor 25, when the fluted disc 19 can move upwards through the upper position sensor 24 and the lower position sensor 25, the rectangular grooves on one side of the fluted disc 19 can be aligned with the bottom end of the limiting sleeve 23, so that the fluted disc 19 can be axially slidably connected with the limiting sleeve 23, and therefore, the limiting sleeve 23 can be driven to rotate when the fluted disc 19 rotates, and the limiting sleeve 23 can drive the driving shaft 5 to rotate.

Further, two ends of the second spring 22 are fixedly connected with the limiting bottom rod 20 and the inner bottom surface of the inner cavity 2, two ends of the first spring 15 are in contact with the second electromagnetic plate 14 and the inner wall of the outer cavity 3, so that the limiting bottom rod 20 can move upwards through extension of the second spring 22, the limiting bottom rod 20 can drive the fluted disc 19 to move upwards, the first electromagnetic plate 12 and the second electromagnetic plate 14 can drive the first tooth row 9 and the second tooth row 10 to move oppositely, and the first electromagnetic plate 12 and the second electromagnetic plate 14 can be buffered through the first spring 15.

Further, the first gear row 9 and the second gear row 10 are located at two sides of the fluted disc 19 and are meshed with the fluted disc 19, the limiting ejector rod 11 is separated from the limiting bottom rod 20 when the first gear row 9 and the second gear row 10 start to move, the second spring 22 stretches and pushes the limiting bottom rod 20 to move upwards, the limiting bottom rod 20 pushes the fluted disc 19 to move upwards, the telescopic rod 18 stretches, meanwhile, the pneumatic rods 17 at two sides stretch or shrink simultaneously and drive the fluted disc 19 to rotate, and in the rotating process of the fluted disc 19, when the upper position sensor 24 and the lower position sensor 25 sense the positions of the fluted disc 19, the pneumatic rods 17 at two sides stop stretching or shrinking, namely the fluted disc 19 does not rotate any more, the fluted disc 19 moves upwards along the limiting sleeve 23, the first gear row 9 and the second gear row 10 at two sides are meshed with the fluted disc 19 at the moment, the limiting sleeve 23 is driven to rotate, the limiting sleeve 23 limits the upward direction of the fluted disc 19 so that the fluted disc 19 does not move upwards, the driving shaft 5 can be driven to rotate through the limiting sleeve 23, and the driving shaft 5 can drive the external switching shaft 6 to rotate, and the valve core can be closed externally.

Further, the first tooth row 9 and the second tooth row 10 penetrate through the inner cavity 2 and extend to the inside of the outer cavity 3, the first electromagnetic plate 12 and the second electromagnetic plate 14 are magnetically attracted, and the first electromagnetic plate 12 and the second electromagnetic plate 14 can be magnetically attracted through movement of the first tooth row 9 and the second tooth row 10, so that the following first tooth row 9 and second tooth row 10 can drive the fluted disc 19 to rotate.

Further, the servo motor 4, the first electromagnetic plate 12 and the second electromagnetic plate 14 are electrically connected with an external power supply, the pneumatic rod 17 is connected with an external cylinder, the servo motor 4, the power supply and the cylinder are electrically connected with an external controller, and the servo motor 4, the power supply and the cylinder can work independently or simultaneously in cooperation through the external controller.

In use, the external valve core is fixedly connected with the output shaft 7, so when the servo motor drives the driving shaft 5 to rotate, the driving shaft 5 can drive the external valve core to rotate through the switching shaft 6 and the output shaft 7 so as to open the external valve core, when the servo motor 4 is powered off and fails and can not drive the external valve core to rotate and close, simultaneously, the first electromagnetic plate 12 and the second electromagnetic plate 14 are electrified with an external power supply, and the first electromagnetic plate 12 and the second electromagnetic plate 14 are attracted magnetically, so that the first tooth row 9 can be moved rightwards, the second tooth row 10 can be moved leftwards, so that the following opposite movement through the first tooth row 9 and the second tooth row 10 can drive the switching shaft 6 and the output shaft 7 to rotate, and the external valve core is closed, the limiting ejector rod 11 is separated from the limiting bottom rod 20 when the first tooth row 9 and the second tooth row 10 start to move, at this time, the second spring 22 stretches and pushes the limiting bottom rod 20 to move upwards, the limiting bottom rod 20 pushes the fluted disc 19 to move upwards, the telescopic rod 18 stretches, at the same time, the pneumatic rods 17 at two sides stretch or shrink simultaneously and drive the fluted disc 19 to rotate, and in the process of rotating the fluted disc 19, when the upper position sensor 24 and the lower position sensor 25 sense the positions of each other, the pneumatic rods 17 at two sides stop stretching or shrinking at this time, that is, the fluted disc 19 does not rotate any more, at this time, the fluted disc 19 moves upwards along the axial direction of the limiting sleeve 23, at this time, the first tooth row 9 and the second tooth row 10 at two sides are meshed with the fluted disc 19 and drive the fluted disc 19 to rotate, at the same time, the limiting sleeve 23 limits the upward direction of the fluted disc 19 to prevent upward movement, the fluted disc 19 can drive the driving shaft 5 to rotate through the limiting sleeve 23, and the driving shaft 5 can drive the external valve core to rotate through the switching shaft 6, and the outer spool is closed.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic re-setting valve electric actuator with outage function, includes quick-witted case (1), its characterized in that: an inner cavity (2) is formed in the middle of the case (1), outer cavities (3) are formed in two sides of the case (1), a servo motor (4) is fixedly connected to the upper surface of the case (1), a driving shaft (5) is fixedly connected to the output end of the servo motor (4) and located in the inner cavity (2), a switching shaft (6) is fixedly connected to the bottom end of the driving shaft (5), an output shaft (7) is fixedly connected to the bottom end of the switching shaft (6), an inner positioning rod (8) is fixedly connected to the upper side of the inner wall of the inner cavity (2), a first tooth row (9) is connected to the surface of the inner positioning rod (8) in a sliding mode, and a second tooth row (10) is connected to the surface of the inner positioning rod (8) in a sliding mode;

The bottom surfaces of the first tooth row (9) and the second tooth row (10) are fixedly connected with a limiting ejector rod (11), one ends of the first tooth row (9) and the second tooth row (10) far away from the inner positioning rod (8) are fixedly connected with a first electromagnetic plate (12), the inner wall of the outer cavity (3) is slidably connected with an outer positioning rod (13), the end surface of the outer positioning rod (13) is fixedly connected with a second electromagnetic plate (14), the surface of the outer positioning rod (13) is movably sleeved with a first spring (15), the lower side of the inner wall of the inner cavity (2) is fixedly connected with a transfer block (16), the end surface of the transfer block (16) is rotationally connected with a pneumatic rod (17) through a rotary pin, the inner side one end of the pneumatic rod (17) is rotationally connected with a telescopic rod (18) through a bearing ring, the top end of the telescopic rod (18) is rotationally connected with a fluted disc (19), the bottom surface of the fluted disc (19) is movably connected with a limiting bottom rod (20), the upper surface of the limiting bottom rod (20) is provided with a combining groove (21) and is movably connected with a limiting ejector rod (11), the surface of the switching shaft (6) is movably sleeved with a second spring (22), the outer surface of the driving shaft (5) is fixedly connected with a limiting sleeve (23), the surface of the limiting sleeve (23) is fixedly connected with an upper position sensor (24), the upper end surface of the fluted disc (19) is fixedly connected with a lower position sensor (25).

2. An electric actuator for an automatic reset valve having a power-off function as defined in claim 1, wherein: rectangular grooves are formed in the end face of the fluted disc (19), the fluted disc (19) is connected with the limiting sleeve (23) in a sliding mode through the rectangular grooves, and the upper position sensor (24) is matched with the lower position sensor (25).

3. An electric actuator for an automatic reset valve having a power-off function as defined in claim 1, wherein: the two ends of the second spring (22) are fixedly connected with the limiting bottom rod (20) and the inner bottom surface of the inner cavity (2), and the two ends of the first spring (15) are contacted with the second electromagnetic plate (14) and the inner wall of the outer cavity (3).

4. An electric actuator for an automatic reset valve having a power-off function as defined in claim 1, wherein: the first tooth row (9) and the second tooth row (10) are positioned on two sides of the fluted disc (19) and meshed with the fluted disc (19).

5. An electric actuator for an automatic reset valve having a power-off function as defined in claim 1, wherein: the first tooth row (9) and the second tooth row (10) penetrate through the inner cavity (2) and extend to the inside of the outer cavity (3), and the first electromagnetic plate (12) and the second electromagnetic plate (14) are magnetically attracted.

6. An electric actuator for an automatic reset valve having a power-off function as defined in claim 1, wherein: the servo motor (4), the first electromagnetic plate (12) and the second electromagnetic plate (14) are electrically connected with an external power supply, the pneumatic rod (17) is connected with an external air cylinder, and the servo motor (4), the power supply and the air cylinder are electrically connected with an external controller.