Valve electric actuator convenient to install

Abstract

The utility model discloses a valve electric actuator convenient to install, which comprises an electric actuator body, a first flange plate is fixedly connected to the bottom end of the electric actuator body, a second flange plate is attached to the bottom end of the first flange plate, and a valve body is fixedly connected to the bottom end of the second flange plate. A rotating block is rotatably connected to the interior of the first flange plate, a connecting rod is slidably connected to the interior of the rotating block, a handle is rotatably connected to the outer side of the top end of the connecting rod, the outer side of the connecting rod is sleeved with a first spring, a clamping plate is attached to the bottom end of the first spring, and the top end of the clamping plate is fixedly connected with the bottom end of the connecting rod. The problems that in the prior art, when the electric actuator of the valve is installed, a worker continuously lifts the device with hands, the labor intensity is high, shaking possibly occurs, pre-clamping cannot be conducted between the electric actuator and the valve, and the installation precision is reduced are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve electric actuators, in particular to a valve electric actuator which is easy to install. Background Art

[0002] A valve electric actuator is a device that can drive a valve to open, close or adjust. It does not require staff to manually adjust the opening and closing of the valve. It can be remotely controlled, which is convenient and fast. It can also accurately control the opening of the valve according to the control signal, and achieve precise adjustment of fluid flow, pressure and other parameters, meeting the high-precision control requirements in the industrial production process, and has high practical performance.

[0003] The valve actuator needs to be installed in place to work properly. The document with application number 202321880623.3 discloses a valve electric actuator that is easy to install, including a mounting base plate, and grooves are provided on both sides of the mounting base plate. A movable mounting rod is provided at each end of the groove, and a mounting hole is provided at the outer end of the movable mounting rod. By providing a groove on the side of the mounting base plate and then providing a movable mounting rod in the groove, the movable mounting rod can be moved and adjusted in the groove, and the mounting hole provided at the outer end of the movable mounting rod is used to install the valve electric actuator. Since the position of the movable mounting rod can be adjusted, the spacing between the mounting holes can be adjusted according to the installation environment, so that the valve electric actuator can be installed to the desired position conveniently.

[0004] However, when installing the valve and the electric actuator, the staff is required to hold the device by hand and fix it with bolts. It is impossible to pre-clamp the electric actuator and the valve. During installation, offset may occur, resulting in reduced installation accuracy.

[0005] Therefore, further improvements are needed to address the above issues. Summary of the Invention

[0006] In order to solve the problems raised in the above background technology, the utility model provides a valve electric actuator that is easy to install and has the advantage of pre-clamping the electric actuator and the valve before installation.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a valve electric actuator that is easy to install, comprising an electric actuator body, the bottom end of the electric actuator body is fixedly connected to a first flange, the bottom end of the first flange is fitted with a second flange, the bottom end of the second flange is fixedly connected to the valve body, the first flange is internally rotatably connected to a rotating block, the rotating block is internally slidably connected to a connecting rod, the top outer side of the connecting rod is rotatably connected to a handle, the outer side of the connecting rod is sleeved with a first spring, the bottom end of the first spring is fitted with a splint, and the top end of the splint is fixedly connected to the bottom end of the connecting rod.

[0008] Preferably, trapezoidal rods are fixedly connected to both sides of the bottom end of the electric actuator body, a lifting plate is slidably connected to the outer side of the trapezoidal rod, a threaded rod is spirally connected to the inner side of the lifting plate, the bottom end of the threaded rod is fixedly connected to a servo motor, and a support frame is provided on the outer side of the servo motor.

[0009] Preferably, the bottom end of the rotating block is fixedly connected to a limiting block, and the limiting block rotates inside the first flange.

[0010] Preferably, a protective pad is inlaid on the top of the splint, and the material of the protective pad is rubber.

[0011] Preferably, a trapezoidal groove is provided at the top end of the lifting plate, and the cross-sectional area of ​​the trapezoidal groove is the same as the cross-sectional area of ​​the trapezoidal rod.

[0012] Preferably, a pull rod is inserted into the interior of the lifting plate, a second spring is sleeved on the outer side of the pull rod, and the second spring is embedded in the interior of the lifting plate.

[0013] Preferably, a polished rod is fixedly connected to the inner side of the support frame, and the polished rod slides inside the lifting plate.

[0014] Preferably, the bottom end of the support frame is fixedly connected to a support base plate, and the four corners of the bottom end of the support base plate are fixedly connected to brake wheels.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The utility model sets a clamping plate and drives the connecting rod to rise by rotating the handle, so that the clamping plate drives the clamping plate close to the rotating block, so that the clamping plate and the rotating block clamp the first flange and the second flange on the inner side thereof to prevent them from moving relative to each other, which is convenient for workers to quickly insert bolts and connect and install the electric actuator body and the valve body, which is convenient and quick and effectively improves the installation accuracy.

[0017] 2. The utility model provides a lifting plate and supports the electric actuator body by placing it on the lifting plate. There is no need for workers to manually lift the electric actuator body, and the work intensity is low. The rotation of the threaded rod is controlled so that the lifting plate drives the electric actuator body close to the valve body, which is convenient for workers to install and connect it, has high stability, and improves installation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cutaway structure of the first flange of the present invention;

[0020] Figure 3 This is a schematic diagram of the cross-section structure of the lifting plate of the utility model;

[0021] Figure 4 For this utility model Figure 2 Schematic diagram of the structure at A;

[0022] Figure 5 For this utility model Figure 3 Schematic diagram of the structure at point B.

[0023] In the figure: 1. Electric actuator body; 2. First flange; 3. Second flange; 4. Valve body; 5. Rotating block; 6. Connecting rod; 7. Handle; 8. First spring; 9. Clamp; 10. Trapezoidal rod; 11. Lifting plate; 12. Threaded rod; 13. Servo motor; 14. Support frame; 15. Limit block; 16. Protective pad; 17. Trapezoidal groove; 18. Pull rod; 19. Second spring; 20. Polished rod; 21. Support base plate; 22. Brake wheel. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] like Figures 1 to 5As shown, the utility model provides a valve electric actuator that is easy to install, including an electric actuator body 1, the bottom end of the electric actuator body 1 is fixedly connected to a first flange 2, the bottom end of the first flange 2 is fitted with a second flange 3, the first flange 2 and the second flange 3 are provided with mounting holes, and are fixedly connected by bolts and nuts, and a sealing gasket is provided inside to improve the airtightness of the connection, the bottom end of the second flange 3 is fixedly connected to a valve body 4, the interior of the first flange 2 is rotatably connected to a rotating block 5, the interior of the rotating block 5 is slidably connected to a connecting rod 6, the top outer side of the connecting rod 6 is rotatably connected to a handle 7, the outer side of the connecting rod 6 is sleeved with a first spring 8, the bottom end of the first spring 8 is fitted with a splint 9, and the top of the splint 9 is fixedly connected to the bottom end of the connecting rod 6.

[0026] Specifically, trapezoidal rods 10 are fixedly connected to both sides of the bottom end of the electric actuator body 1, and a lifting plate 11 is slidably connected to the outer side of the trapezoidal rod 10. The lifting plate 11 is U-shaped, and the electric actuator body 1 can be placed inside it. The inside of the lifting plate 11 is spirally connected to a threaded rod 12, and the bottom end of the threaded rod 12 is fixedly connected to a servo motor 13, and a support frame 14 is provided on the outer side of the servo motor 13.

[0027] The bottom end of the rotating block 5 is fixedly connected to the limiting block 15 , and the limiting block 15 rotates inside the first flange 2 to prevent the rotating block 5 from separating from the first flange 2 during operation.

[0028] A protective pad 16 is embedded on the top of the splint 9, and the material of the protective pad 16 is rubber. Under the action of the protective pad 16, it can effectively prevent the excessive pressure between the splint 9 and the rotating block 5 from causing damage to the second flange 3, thereby reducing economic losses.

[0029] A trapezoidal groove 17 is provided at the top of the lifting plate 11, and the cross-sectional area of ​​the trapezoidal groove 17 is the same as the cross-sectional area of ​​the trapezoidal rod 10, which facilitates the sliding of the trapezoidal rod 10 inside the trapezoidal groove 17, has high stability, and prevents the electric actuator body 1 from shaking when moving.

[0030] A pull rod 18 is inserted into the interior of the lifting plate 11, and a second spring 19 is sleeved on the outside of the pull rod 18. The second spring 19 is embedded in the interior of the lifting plate 11, which can limit the position of the trapezoidal rod 10 and prevent it from falling off and moving from the interior of the lifting plate 11.

[0031] A polished rod 20 is fixedly connected to the inner side of the support frame 14, and the polished rod 20 slides inside the lifting plate 11. Under the action of the polished rod 20, it provides a guide for the movement of the lifting plate 11, preventing it from shaking and deflecting during movement, thereby improving the stability of the electric actuator body 1.

[0032] The bottom end of the support frame 14 is fixedly connected to a support base plate 21 , and the four corners of the bottom end of the support base plate 21 are fixedly connected to brake wheels 22 , which facilitates the movement of the device and reduces the labor intensity of the staff.

[0033] Working principle and process:

[0034] When the staff needs to install and connect the electric actuator body 1 and the valve body 4, the staff first slides the trapezoidal rod 10 fixedly connected to the bottom end of the electric actuator body 1 through the trapezoidal groove 17 into the inside of the lifting plate 11 to fix and support the electric actuator body 1. The staff does not need to lift the electric actuator body 1 for a long time, which reduces the labor intensity of the staff. Under the action of the second spring 19, one end of the pull rod 18 will be pushed out of the inside of the lifting plate 11 to limit the position of the trapezoidal rod 10 to prevent it from falling off and moving. Then the pushing device moves, and under the action of the brake wheel 22, the electric actuator body 1 is driven to move to the top of the valve body 4, and the servo motor 13 is started to drive the threaded rod 12 to rotate. The threaded rod 12 drives the lifting plate 11 to slide, so that the electric actuator body 1 gradually approaches the valve body 4 and fits it. Under the action of the light rod 20, a guiding effect is provided for the movement of the lifting plate 11. After the cam 11 is released, the first and second flanges 2 and 3 are released, and the cam 12 is released, so that the cam 12 can be easily moved.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve electric actuator that is easy to install, comprising an electric actuator body (1), characterized in that: The bottom end of the electric actuator body (1) is fixedly connected to a first flange (2), the bottom end of the first flange (2) is fitted with a second flange (3), the bottom end of the second flange (3) is fixedly connected to a valve body (4), the first flange (2) is internally rotatably connected to a rotating block (5), the rotating block (5) is internally slidably connected to a connecting rod (6), the top outer side of the connecting rod (6) is rotatably connected to a handle (7), the outer side of the connecting rod (6) is sleeved with a first spring (8), the bottom end of the first spring (8) is fitted with a clamping plate (9), and the top end of the clamping plate (9) is fixedly connected to the bottom end of the connecting rod (6).

2. The electric valve actuator that is easy to install according to claim 1, characterized in that: Trapezoidal rods (10) are fixedly connected to both sides of the bottom end of the electric actuator body (1), a lifting plate (11) is slidably connected to the outside of the trapezoidal rod (10), a threaded rod (12) is spirally connected to the inside of the lifting plate (11), a servo motor (13) is fixedly connected to the bottom end of the threaded rod (12), and a support frame (14) is sleeved on the outside of the servo motor (13).

3. The electric valve actuator that is easy to install according to claim 1, characterized in that: The bottom end of the rotating block (5) is fixedly connected to the limiting block (15), and the limiting block (15) rotates inside the first flange (2).

4. The electric valve actuator that is easy to install according to claim 1, characterized in that: A protective pad (16) is inlaid on the top of the splint (9), and the material of the protective pad (16) is rubber.

5. The electric valve actuator that is easy to install according to claim 2, characterized in that: A trapezoidal groove (17) is provided at the top end of the lifting plate (11), and the cross-sectional area of ​​the trapezoidal groove (17) is the same as the cross-sectional area of ​​the trapezoidal rod (10).

6. The electric valve actuator that is easy to install according to claim 2, characterized in that: A pull rod (18) is inserted and connected inside the lifting plate (11), a second spring (19) is sleeved on the outside of the pull rod (18), and the second spring (19) is embedded in the lifting plate (11).

7. The electric valve actuator that is easy to install according to claim 2, characterized in that: A polished rod (20) is fixedly connected to the inner side of the support frame (14), and the polished rod (20) slides inside the lifting plate (11).

8. The electric valve actuator that is easy to install according to claim 2, characterized in that: The bottom end of the support frame (14) is fixedly connected to a support base plate (21), and the four corners of the bottom end of the support base plate (21) are fixedly connected to brake wheels (22).

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