Temperature-sensing and pressure-sensing type electric actuator with automatic valve resetting function

Abstract

The utility model relates to the technical field of valves, and discloses a temperature-sensing and pressure-sensing type electric actuator with an automatic valve resetting function, which comprises a case and a valve body, the left end of the valve body is fixedly connected with an inlet pipe, the right end of the valve body is fixedly connected with an outlet pipe, the upper surface of the valve body is rotatably connected with a valve shaft, and the valve shaft is rotatably connected with a valve rod. A manual rotating shaft is rotatably connected to the middle of the upper surface of the machine box, a temperature sensing cylinder and a pressure sensing cylinder are fixedly connected to the two sides of the upper surface of the machine box, a protective grating is fixedly connected to the top ends of the temperature sensing cylinder and the pressure sensing cylinder, a driving shaft is rotatably connected to the inner bottom face of the machine box, and a rotating disc is fixedly connected to the top end of the driving shaft. And a controller is fixedly connected to the inner top surface of the case. According to the temperature and pressure sensing type electric actuator with the automatic valve resetting function, external temperature and air pressure changes can be monitored and sensed through the temperature sensing cylinder and the pressure sensing cylinder, and information can be transmitted to the controller so that the controller can drive the valve body to be opened or closed.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a temperature- and pressure-sensitive electric actuator with an automatic valve reset function. Background Art

[0002] The valve is a control component in the fluid delivery system, which has the functions of shutting off, regulating, guiding, preventing backflow, stabilizing pressure, diverting or overflowing pressure relief;

[0003] Most of the existing valves are opened or closed by manual electrical control, and when the valve is in use, it is difficult to actively close according to changes in the external air pressure and temperature environment. Therefore, when the external air pressure and temperature environment change and danger occurs, the valve cannot be actively closed, which may increase the danger and reduce the practicality of the safe use of the valve. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a temperature-sensing and pressure-sensing electric actuator with an automatic valve reset function, which solves the problem that the valve is inconvenient to actively close according to changes in the external air pressure and temperature environment when in use. In order to achieve the purpose of facilitating the active closing of the above-mentioned valve according to changes in the external air pressure and temperature environment when in use, the utility model provides the following technical solutions: a temperature-sensing and pressure-sensing electric actuator with an automatic valve reset function, comprising a chassis and a valve body, the left end of the valve body is fixedly connected to an inlet pipe, the right end of the valve body is fixedly connected to an outlet pipe, the upper surface of the valve body is rotatably connected to a valve shaft, the middle part of the upper surface of the chassis is rotatably connected to a manual rotating shaft, the two sides of the upper surface of the chassis are fixedly connected to a temperature-sensing cylinder and a pressure-sensing cylinder, the top ends of the temperature-sensing cylinder and the pressure-sensing cylinder are fixedly connected to a protective grille, the inner bottom surface of the chassis is rotatably connected to a drive shaft, the top end of the drive shaft is fixedly connected to a turntable, and the inner top surface of the chassis is fixedly connected to a controller;

[0005] The front and rear sides of the turntable are fixedly connected with inner rotating blocks, the left and right inner walls of the chassis are fixedly connected with outer rotating blocks, a left pneumatic rod is rotatably connected between the outer rotating block and the inner rotating block on the left side, and a right pneumatic rod is rotatably connected between the outer rotating block and the inner rotating block on the right side, a cylinder is fixedly connected to the outer rotating block through a branch pipe, and a processor is fixedly connected to the cylinder, a cylinder cavity is opened inside the temperature sensing cylinder and the pressure sensing cylinder, a spring is provided inside the cylinder cavity, a glass column is fixedly connected to the temperature sensing cylinder and the pressure sensing cylinder, an upper magnetic ring is fixedly connected to the bottom end of the spring, a lower magnetic ring is fixedly connected to the inner bottom surface of the cylinder cavity, an upper contact head is fixedly connected to the bottom surface of the upper magnetic ring, and a lower contact head is fixedly connected to the upper end surface of the lower magnetic ring.

[0006] Preferably, the upper magnetic ring is located inside the barrel cavity and is slidably connected thereto, the top end of the spring is fixedly connected to the inner top surface of the barrel cavity, the bottom end of the spring is fixedly connected to the upper magnetic ring, and the upper magnetic ring and the lower magnetic ring are magnetically attracted to each other.

[0007] Preferably, the upper contact head and the lower contact head are matched, the upper contact head and the lower contact head are electrically connected to the processor, and the processor and the cylinder are electrically connected to the controller.

[0008] Preferably, a glass column is provided inside the temperature-sensing cylinder and the pressure-sensing cylinder. The glass column is located inside the temperature-sensing cylinder and the pressure-sensing cylinder. The temperature-sensing cylinder and the pressure-sensing cylinder are extended from the top of the glass column. A temperature sensor is provided at the top of the glass column on one side of the temperature-sensing cylinder, and a pressure sensor is provided at the top of the glass column on one side of the pressure-sensing cylinder.

[0009] Preferably, the inner end of the left pneumatic rod and the right pneumatic rod are rotatably connected to the inner rotating block, the outer end of the left pneumatic rod and the right pneumatic rod are rotatably connected to the outer rotating block, and the left pneumatic rod and the right pneumatic rod are connected to the cylinder on each side through a branch pipe.

[0010] Preferably, the top end of the valve shaft is fixedly connected to the driving shaft, and the bottom end of the valve shaft extends to the interior of the valve body and is fixedly connected to a valve plate arranged inside the valve body.

[0011] Compared with the prior art, the utility model provides a temperature-sensitive and pressure-sensitive electric actuator with an automatic valve reset function, which has the following beneficial effects:

[0012] 1. This temperature-sensitive and pressure-sensitive electric actuator with automatic valve reset function can monitor the external temperature through the temperature sensor installed on one side of the temperature-sensitive cylinder, and can monitor the external pressure through the pressure sensor installed on one side of the pressure-sensitive cylinder. When the external temperature exceeds the set temperature of the glass column on one side of the temperature-sensitive cylinder, or the external pressure exceeds the set pressure of the glass column on one side of the pressure-sensitive cylinder, the information can be transmitted to the controller so that the controller can subsequently drive the valve body to close.

[0013] 2. This temperature-sensitive and pressure-sensitive electric actuator with automatic valve reset function, when the upper contact head contacts the lower contact head, the controller processes the information and starts the cylinder, and the cylinder drives the left pneumatic rod to extend and the right pneumatic rod to contract. At this time, the turntable rotates counterclockwise through the action of the left and right pneumatic rods, so that the turntable can drive the valve shaft to rotate through the drive shaft, and then the valve shaft can drive the valve plate set inside the valve body to rotate and close the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2It is a partial cross-sectional view of the structure of the utility model;

[0016] Figure 3 This is the main cross-sectional view of the temperature sensing tube of the utility model structure;

[0017] Figure 4 For this utility model Figure 3 A partial enlarged schematic diagram of the structure at point A in the middle.

[0018] Among them: 1. Chassis; 2. Valve body; 3. Inlet pipe; 4. Outlet pipe; 5. Valve shaft; 6. Manual shaft; 7. Temperature sensor; 8. Pressure sensor; 9. Protective grille; 10. Drive shaft; 11. Turntable; 12. Controller; 13. Inner rotating block; 14. Outer rotating block; 15. Left pneumatic rod; 16. Right pneumatic rod; 17. Cylinder; 18. Processor; 19. Cylinder cavity; 20. Spring; 21. Glass column; 22. Upper magnetic ring; 23. Lower magnetic ring; 24. Upper contact head; 25. Lower contact head. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-4 The utility model provides a temperature-sensing and pressure-sensing electric actuator with an automatic valve reset function, comprising a chassis 1 and a valve body 2, the left end of the valve body 2 is fixedly connected with an inlet pipe 3, the right end of the valve body 2 is fixedly connected with an outlet pipe 4, the upper surface of the valve body 2 is rotatably connected with a valve shaft 5, the middle of the upper surface of the chassis 1 is rotatably connected with a manual shaft 6, the upper sides of the chassis 1 are fixedly connected with a temperature-sensing cylinder 7 and a pressure-sensing cylinder 8, the tops of the temperature-sensing cylinder 7 and the pressure-sensing cylinder 8 are fixedly connected with a protective grille 9, the inner bottom surface of the chassis 1 is rotatably connected with a driving shaft 10, the top of the driving shaft 10 is fixedly connected with a turntable 11, and the inner top surface of the chassis 1 is fixedly connected with a controller 12;

[0021] The front and rear sides of the turntable 11 are fixedly connected with an inner rotating block 13, the left and right inner walls of the chassis 1 are fixedly connected with an outer rotating block 14, a left pneumatic rod 15 is rotatably connected between the left outer rotating block 14 and the inner rotating block 13, and a right pneumatic rod 16 is rotatably connected between the right outer rotating block 14 and the inner rotating block 13. A cylinder 17 is fixedly connected to the outer rotating block 14 through a branch pipe, and a processor 18 is fixedly connected to the cylinder 17. A cylinder cavity 19 is opened inside the temperature sensing cylinder 7 and the pressure sensing cylinder 8, and a spring 20 is arranged inside the cylinder cavity 19. The temperature sensing cylinder 7 and the pressure sensing cylinder 8 are provided with a cylinder cavity 19. A glass column 21 is fixedly connected, an upper magnetic ring 22 is fixedly connected to the bottom end of the spring 20, a lower magnetic ring 23 is fixedly connected to the inner bottom surface of the cylinder cavity 19, an upper contact head 24 is fixedly connected to the bottom surface of the upper magnetic ring 22, and a lower contact head 25 is fixedly connected to the upper end surface of the lower magnetic ring 23. By connecting the inlet pipe 3 and the outlet pipe 4 to the external pipeline and through a temperature sensor arranged on one side of the temperature sensing tube 7, the external temperature can be monitored, and by a pressure sensor arranged on one side of the pressure sensing tube 8, the external pressure can be monitored.

[0022] Furthermore, the upper magnetic ring 22 is located inside the barrel cavity 19 and is slidably connected thereto, the top end of the spring 20 is fixedly connected to the inner top surface of the barrel cavity 19, and the bottom end of the spring 20 is fixedly connected to the upper magnetic ring 22. The upper magnetic ring 22 and the lower magnetic ring 23 are magnetically attracted to each other. When the upper magnetic ring 22 and the lower magnetic ring 23 are in contact and magnetically attracted to each other, the magnetic attraction force of the upper magnetic ring 22 and the lower magnetic ring 23 is greater than the tension of the spring 20, thereby preventing the upper magnetic ring 22 and the lower magnetic ring 23 from detaching from each other after magnetic attraction.

[0023] Furthermore, the upper contact head 24 and the lower contact head 25 are adapted to each other, the upper contact head 24 and the lower contact head 25 are electrically connected to the processor 18, and the processor 18 and the cylinder 17 are electrically connected to the controller 12, so that the processor 18 and the cylinder 17 can be controlled by the controller 12 to work in coordination or independently.

[0024] Furthermore, a glass column 21 is provided inside the temperature-sensing tube 7 and the pressure-sensing tube 8. The glass column 21 is located inside the temperature-sensing tube 7 and the pressure-sensing tube 8. The top of the glass column 21 extends out of the temperature-sensing tube 7 and the pressure-sensing tube 8. A temperature sensor is provided at the top of the glass column 21 on one side of the temperature-sensing tube 7, and a pressure sensor is provided at the top of the glass column 21 on one side of the pressure-sensing tube 8. The external temperature can be monitored by the temperature sensor provided on one side of the temperature-sensing tube 7, and the external pressure can be monitored by the pressure sensor provided on one side of the pressure-sensing tube 8. When the temperature is too high or the pressure is too high, and exceeds the set temperature of the glass column 21 on one side of the temperature-sensing tube 7, or exceeds the set pressure of the glass column 21 on one side of the pressure-sensing tube 8, the liquid inside the glass column 21 can expand, so that the water bubble swells and breaks the glass column 21, and the glass column 21 generates an impact force on the upper magnetic ring 22.

[0025] Furthermore, the inner end of the left pneumatic rod 15 and the right pneumatic rod 16 are rotatably connected to the inner rotating block 13, and the outer end of the left pneumatic rod 15 and the right pneumatic rod 16 are rotatably connected to the outer rotating block 14. The left pneumatic rod 15 and the right pneumatic rod 16 are connected to the cylinder 17 on each side through a branch pipe, that is, the inner end of the left pneumatic rod 15 and the right pneumatic rod 16 are rotatably connected to the turntable 11 through the inner rotating block 13, and the outer end of the left pneumatic rod 15 and the right pneumatic rod 16 are rotatably connected to the chassis 1 through the outer rotating block 14. When the left pneumatic rod 15 and the right pneumatic rod 16 are extended or contracted, the turntable 11 can be driven to rotate.

[0026] Furthermore, the top end of the valve shaft 5 is fixedly connected to the drive shaft 10, and the bottom end of the valve shaft 5 extends to the interior of the valve body 2 and is fixedly connected to the valve plate arranged inside the valve body 2. When the turntable 11 drives the valve shaft 5 to rotate through the drive shaft 10, the valve shaft 5 can drive the valve plate arranged inside the valve body 2 to rotate. Therefore, when the valve plate rotates, the valve body 2 can be opened or closed.

[0027] When in use, the inlet pipe 3 and the outlet pipe 4 are connected to the external pipeline, and the external temperature can be monitored by the temperature sensor arranged on the side of the temperature-sensitive cylinder 7, and the external pressure can be monitored by the pressure sensor arranged on the side of the pressure-sensitive cylinder 8. When the external temperature exceeds the set temperature of the glass column 21 on the side of the temperature-sensitive cylinder 7, or the external pressure exceeds the set pressure of the glass column 21 on the side of the pressure-sensitive cylinder 8, the liquid inside the glass column 21 expands, so that the water bubble expands and breaks the glass column 21, and the glass column 21 generates a downward impact force on the upper magnetic ring 22. At this time, the upper magnetic ring 22 is moved downward by the force and the spring 20 is stretched, and the upper magnetic ring 22 contacts the lower magnetic ring 23 and passes through Magnetic attraction occurs. At this time, the upper contact head 24 contacts the lower contact head 25 and transmits information to the processor 18. The processor 18 transmits the information to the controller 12. The controller 12 processes the information and starts the cylinder 17. The cylinder 17 drives the left pneumatic rod 15 to extend and the right pneumatic rod 16 to contract. At this time, the turntable 11 rotates counterclockwise through the action of the left pneumatic rod 15 and the right pneumatic rod 16, so that the turntable 11 can drive the valve shaft 5 to rotate through the drive shaft 10, and then the valve shaft 5 can drive the valve plate arranged inside the valve body 2 to rotate and close the valve body 2. Similarly, when the cylinder 17 drives the left pneumatic rod 15 to contract and the right pneumatic rod 16 to extend, the turntable 11 can rotate clockwise and the valve body 2 can be opened.

[0028] 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. A temperature- and pressure-sensitive electric actuator with an automatic valve reset function, comprising a chassis (1) and a valve body (2), characterized in that: The left end of the valve body (2) is fixedly connected to an inlet pipe (3), the right end of the valve body (2) is fixedly connected to an outlet pipe (4), the upper surface of the valve body (2) is rotatably connected to a valve shaft (5), the middle part of the upper surface of the chassis (1) is rotatably connected to a manual rotating shaft (6), the two sides of the upper surface of the chassis (1) are fixedly connected to a temperature sensing cylinder (7) and a pressure sensing cylinder (8), the top ends of the temperature sensing cylinder (7) and the pressure sensing cylinder (8) are fixedly connected to a protective grille (9), the inner bottom surface of the chassis (1) is rotatably connected to a drive shaft (10), the top end of the drive shaft (10) is fixedly connected to a turntable (11), and the inner top surface of the chassis (1) is fixedly connected to a controller (12); The front and rear sides of the turntable (11) are fixedly connected with an inner rotating block (13); the left and right inner walls of the chassis (1) are fixedly connected with an outer rotating block (14); a left pneumatic rod (15) is rotatably connected between the left outer rotating block (14) and the inner rotating block (13); a right pneumatic rod (16) is rotatably connected between the right outer rotating block (14) and the inner rotating block (13); a cylinder (17) is fixedly connected to the outer rotating block (14) via a branch pipe; a processor (18) is fixedly connected to the cylinder (17); and the temperature sensing cylinder (7) is connected to the inner rotating block (13). ) and the pressure-sensing tube (8) are provided with a tube cavity (19), a spring (20) is provided inside the tube cavity (19), a glass column (21) is fixedly connected to the temperature-sensing tube (7) and the pressure-sensing tube (8), an upper magnetic ring (22) is fixedly connected to the bottom end of the spring (20), a lower magnetic ring (23) is fixedly connected to the bottom surface of the tube cavity (19), an upper contact head (24) is fixedly connected to the bottom surface of the upper magnetic ring (22), and a lower contact head (25) is fixedly connected to the upper end surface of the lower magnetic ring (23).

2. According to claim 1, a temperature-sensitive and pressure-sensitive electric actuator with automatic valve reset function is characterized in that: The upper magnetic attraction ring (22) is located inside the barrel cavity (19) and is slidably connected thereto; the top end of the spring (20) is fixedly connected to the inner top surface of the barrel cavity (19); the bottom end of the spring (20) is fixedly connected to the upper magnetic attraction ring (22); and the upper magnetic attraction ring (22) and the lower magnetic attraction ring (23) are magnetically attracted to each other.

3. The temperature-sensing and pressure-sensing electric actuator with automatic valve reset function according to claim 1, characterized in that: The upper contact head (24) and the lower contact head (25) are matched with each other, the upper contact head (24) and the lower contact head (25) are electrically connected to the processor (18), and the processor (18) and the cylinder (17) are electrically connected to the controller (12).

4. The temperature-sensing and pressure-sensing electric actuator with automatic valve reset function according to claim 1, characterized in that: A glass column (21) is provided inside the temperature-sensing cylinder (7) and the pressure-sensing cylinder (8). The glass column (21) is located inside the temperature-sensing cylinder (7) and the pressure-sensing cylinder (8). The top end of the glass column (21) extends out of the temperature-sensing cylinder (7) and the pressure-sensing cylinder (8). A temperature sensor is provided at the top end of the glass column (21) on one side of the temperature-sensing cylinder (7), and a pressure sensor is provided at the top end of the glass column (21) on one side of the pressure-sensing cylinder (8).

5. The temperature-sensing and pressure-sensing electric actuator with automatic valve reset function according to claim 1, characterized in that: The inner ends of the left pneumatic rod (15) and the right pneumatic rod (16) are rotatably connected to the inner rotating block (13), and the outer ends of the left pneumatic rod (15) and the right pneumatic rod (16) are rotatably connected to the outer rotating block (14). The left pneumatic rod (15) and the right pneumatic rod (16) are connected to the cylinder (17) on one side thereof through a branch pipe.

6. The temperature-sensing and pressure-sensing electric actuator with automatic valve reset function according to claim 1, characterized in that: The top end of the valve shaft (5) is fixedly connected to the drive shaft (10), and the bottom end of the valve shaft (5) extends to the interior of the valve body (2) and is fixedly connected to a valve plate arranged inside the valve body (2).

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