Electric control valve

Abstract

The utility model discloses an electric control valve, which is characterized in that the lower surface of an electric actuating mechanism is provided with a bottom plate, the lower surface of the bottom plate is provided with a plurality of upright posts and supporting rods, and second flanges at the bottoms of the upright posts are connected with first flanges of a connecting seat, so that the electric actuating mechanism is supported; an upper limiting semi-ring and a lower limiting semi-ring are arranged at the bottom of the supporting rod to be connected with the cylindrical valve body, in the using process, the stability of the electric actuating mechanism is greatly improved, clamping grooves are formed in the peripheries of the two ends of the cylindrical valve body respectively, and the upper limiting semi-ring and the lower limiting semi-ring are matched with the clamping grooves. And displacement of the upper limiting semi-ring and the lower limiting semi-ring caused by vibration of the pipeline is avoided, and the overall stability is further improved.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a valve, specifically an electric control valve. Background Art

[0002] The electric control valve is an important actuator unit in industrial automation process control. With the increasing automation degree in the industrial field, it is being more and more applied in various industrial production fields. Compared with the traditional pneumatic control valve, it has obvious advantages: the electric control valve is energy-saving (only consumes electric energy when working), environmentally friendly (no carbon emission), and quick and convenient to install (no complex pneumatic pipelines and air pump workstations).

[0003] In the prior art, the electric actuator in the electric control valve is directly connected to the connection seat of the valve body through a support assembly. During the use process, especially when the electric actuator is working, the stability of the electric actuator is not high, and it is easy to shake, affecting the service life. Therefore, an improved technology is urgently needed to solve the above problems existing in the prior art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an electric control valve. A bottom plate is installed on the lower surface of the electric actuator. Several columns and support rods are arranged on the lower surface of the bottom plate. The second flange at the bottom of the column is connected to the first flange of the connection seat, so as to realize the support of the electric actuator. And a support rod is also arranged on the lower surface of the bottom plate. An upper limit semi-ring and a lower limit semi-ring are arranged at the bottom of the support rod to be connected with the cylindrical valve body. During the use process, the stability of the electric actuator is greatly improved. And clamping grooves are respectively arranged on the outer periphery at both ends of the cylindrical valve body. The upper limit semi-ring and the lower limit semi-ring are matched with the clamping grooves to prevent the upper limit semi-ring and the lower limit semi-ring from shifting due to pipeline vibration, and further improve the overall stability, so as to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an electric control valve, including a cylindrical valve body and an electric actuator;

[0006] A connection seat is arranged at the middle position of the cylindrical valve body. The axis of the connection seat is perpendicular to the axis of the cylindrical valve body. The connection seat is communicated with the inner cavity of the cylindrical valve body. A first flange is arranged at the upper end of the connection seat. Clamping grooves are arranged on the outer periphery at both ends of the cylindrical valve body. A circular valve plate is rotatably arranged at the middle position inside the cylindrical valve body. A square hole is arranged through the circular valve plate along the diameter. An axis hole is arranged at the middle position inside the cylindrical valve body.

[0007] The lower surface of the electric actuator is provided with a bottom plate through bolts. The lower surface of the bottom plate is provided with several columns, and the bottom of the columns is connected with a second flange. The second flange is connected to the first flange through bolts and nuts. The output shaft of the electric actuator passes through the bottom plate and is connected to the top end of the connecting rod through a coupling. The bottom of the connecting rod is provided with a square rod, and the bottom end of the square rod is provided with a convex shaft. The square rod passes through the square hole of the circular valve disc, and the convex shaft is rotatably arranged in the shaft hole of the cylindrical valve body. The lower surface of the bottom plate is also provided with a support rod, and the bottom of the support rod is provided with an upper limit half ring. The two ends of the upper limit half ring are connected to the lower limit half ring, and the upper limit half ring and the lower limit half ring form a ring and cooperate with the clamping groove of the cylindrical valve body.

[0008] Preferably, in an electric control valve provided by the present invention, a sealing shaft sleeve is arranged inside the connecting seat.

[0009] Preferably, in an electric control valve provided by the present invention, extension plates are arranged at both ends of the upper limit half ring and the lower limit half ring, and the extension plate of the upper limit half ring is connected to the extension plate of the lower limit half ring through bolts and nuts.

[0010] Preferably, in an electric control valve provided by the present invention, both ends of the column are respectively welded to the second flange and the bottom plate, and the top end of the support rod is welded to the bottom plate.

[0011] Preferably, in an electric control valve provided by the present invention, connecting flanges are arranged at both ends of the cylindrical valve body.

[0012] Preferably, in an electric control valve provided by the present invention, the widths of the upper limit half ring and the lower limit half ring are the same as the width of the clamping groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] A bottom plate is installed on the lower surface of the electric actuator. The lower surface of the bottom plate is provided with several columns and support rods. The second flange at the bottom of the column is connected to the first flange of the connecting seat, so as to realize the support of the electric actuator. In addition, a support rod is also arranged on the lower surface of the bottom plate, and an upper limit half ring and a lower limit half ring are arranged at the bottom of the support rod to be connected to the cylindrical valve body. During use, the stability of the electric actuator is greatly improved. In addition, clamping grooves are respectively formed on the peripheries at both ends of the cylindrical valve body, and the upper limit half ring and the lower limit half ring cooperate with the clamping grooves, avoiding the displacement of the upper limit half ring and the lower limit half ring caused by the vibration of the pipeline, and further improving the overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the present invention;

[0016] Figure 2 Schematic diagram of the interface structure of the present utility model;

[0017] Figure 3 Schematic diagram of the cylindrical valve body structure;

[0018] Figure 4 Schematic diagram of the circular valve plate structure.

[0019] In the figure: cylindrical valve body 1, electric actuator 2, connecting seat 3, first flange 4, card slot 5, circular valve plate 6, square hole 7, shaft hole 8, bottom plate 9, column 10, second flange 11, connecting rod 12, square rod 13, convex shaft 14, support rod 15, upper limit half ring 16, lower limit half ring 17, sealing shaft sleeve 18, extension plate 19, connecting flange 20. Specific embodiments

[0020] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments and drawings of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model;

[0021] It should be noted that in the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution: an electric control valve, comprising a cylindrical valve body 1 and an electric actuator 2;

[0023] Both ends of the cylindrical valve body 1 are provided with connecting flanges 20 to realize the connection between the cylindrical valve body 1 and the pipeline. A connecting seat 3 is arranged at the middle position of the cylindrical valve body 1. The axis of the connecting seat 3 is perpendicular to the axis of the cylindrical valve body 1. The connecting seat 3 is communicated with the inner cavity of the cylindrical valve body 1. A first flange 4 is arranged at the upper end of the connecting seat 3. Card slots 5 are opened on the periphery of both ends of the cylindrical valve body 1. A circular valve plate 6 is rotatably arranged at the middle position inside the cylindrical valve body 1. A square hole 7 is axially penetrated through the circular valve plate 6. A shaft hole 8 is opened at the middle position inside the cylindrical valve body 1;

[0024] The lower surface of the electric actuator 2 is provided with a bottom plate 9 through bolts. The lower surface of the bottom plate 9 is provided with a number of columns 10. The bottom of the columns 10 is connected with a second flange 11. The second flange 11 is connected with the first flange 4 through bolts and nuts. The output shaft of the electric actuator 2 passes through the bottom plate 9 and is connected with the top end of the connecting rod 12 through a coupling. The bottom of the connecting rod 12 is provided with a square rod 13. The bottom end of the square rod 13 is provided with a convex shaft 14. The square rod 13 passes through the square hole 7 of the circular valve plate 6. The convex shaft 14 is rotatably arranged in the shaft hole 8 of the cylindrical valve body 1. A sealing shaft sleeve 18 is arranged inside the connecting seat 3 to ensure the sealing performance between the connecting seat 3 and the connecting rod 12. The lower surface of the bottom plate 9 is also provided with a support rod 15. The two ends of the column 10 are respectively welded to the second flange 11 and the bottom plate 9. The top end of the support rod 15 is welded to the bottom plate 9 to respectively realize the connection between the column 10 and the support rod 15 and the bottom plate 9. The bottom of the support rod 15 is provided with an upper limit half ring 16. The two ends of the upper limit half ring 16 are connected with the lower limit half ring 17. Extension plates 19 are arranged at both ends of the upper limit half ring 16 and the lower limit half ring 17. The extension plate 19 of the upper limit half ring 16 is connected with the extension plate 19 of the lower limit half ring 17 through bolts and nuts, so as to realize the connection and disassembly between the upper limit half ring 16 and the lower limit half ring 17. The upper limit half ring 16 and the lower limit half ring 17 form a circular ring and cooperate with the clamping groove 5 of the cylindrical valve body 1. The widths of the upper limit half ring 16 and the lower limit half ring 17 are the same as the width of the clamping groove 5 to ensure that the upper limit half ring 16 and the lower limit half ring 17 are not loose in the clamping groove 5, thus ensuring stability.

[0025] Installation method and working principle: First, place the circular valve disc 6 into the cylindrical valve body 1. Then, pass the connecting rod 12 through the sealing bushing 18 inside the connecting seat 3, and pass part of the square rod 13 into the square hole 7 of the circular valve disc 6. Next, install the bottom plate 9 at the bottom of the electric actuator 2, and connect the second flange 11 below the bottom plate 9 to the first flange 4 through bolts and nuts. At the same time, connect the output shaft of the electric actuator 2 to the top end of the connecting rod 12 through a coupling. At this time, the upper limit half-ring 16 at the bottom of the support rod 15 is pressed into the card slot 5 of the cylindrical valve body 1. Finally, connect the two ends of the lower limit half-ring 17 to the upper limit half-ring 16 through the extension plate 19, bolts and nuts, so that both the upper limit half-ring 16 and the lower limit half-ring 17 hold the card slot 5 of the cylindrical valve body 1, and the installation is completed. When in use, connect it to the pipeline through the connecting flange 20, and the electric actuator 2 is supported above the cylindrical valve body 1. The structure of the present utility model is reasonable. The bottom surface of the electric actuator 2 is provided with a bottom plate 9, and the bottom surface of the bottom plate 9 is provided with several columns 10 and support rods 15. The second flange 11 at the bottom of the column 10 is connected to the first flange 4 of the connecting seat 3, so as to realize the support of the electric actuator 2. And the bottom surface of the bottom plate 9 is also provided with a support rod 15, and the bottom of the support rod 15 is provided with an upper limit half-ring 16 and a lower limit half-ring 17 to be connected to the cylindrical valve body 1. During the use process, the stability of the electric actuator 2 is greatly improved. And card slots 5 are respectively opened on the peripheries of both ends of the cylindrical valve body 1, and the upper limit half-ring 16 and the lower limit half-ring 17 cooperate with the card slot 5, avoiding the displacement of the upper limit half-ring 16 and the lower limit half-ring 17 caused by the vibration of the pipeline, and further improving the overall stability.

[0026] For those parts not detailed in the present utility model, they are all well-known technologies to those skilled in the art.

[0027] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified and equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. An electric regulating valve, characterized in that: It comprises a cylindrical valve body (1) and an electric actuator (2); A connecting seat (3) is arranged in the middle of the cylindrical valve body (1), the axial direction of the connecting seat (3) is perpendicular to the axial direction of the cylindrical valve body (1), the connecting seat (3) is communicated with the inner cavity of the cylindrical valve body (1), a first flange (4) is arranged at the upper end of the connecting seat (3), a clamping groove (5) is arranged on the periphery of both ends of the cylindrical valve body (1), a circular valve plate (6) is rotatably arranged in the middle of the cylindrical valve body (1), a square hole (7) is arranged through the circular valve plate (6) along the diameter, and an axial hole (8) is arranged in the middle of the cylindrical valve body (1); The lower surface of the electric actuator (2) is provided with a bottom plate (9) by means of bolts, and a plurality of columns (10) are provided on the lower surface of the bottom plate (9). The bottom of the column (10) is connected with a second flange (11), and the second flange (11) is connected to the first flange (4) by means of bolts and nuts. The output shaft of the electric actuator (2) passes through the bottom plate (9) and is connected to the top of a connecting rod (12) by means of a coupling. A square rod (13) is provided at the bottom of the connecting rod (12), and a convex rod (13) is provided at the bottom end. The square rod (13) passes through the square hole (7) of the circular valve plate (6), and the convex shaft (14) is rotatably arranged in the shaft hole (8) of the cylindrical valve body (1). The lower surface of the bottom plate (9) is also provided with a support rod (15), and the bottom of the support rod (15) is provided with an upper limit semi-ring (16), and the two ends of the upper limit semi-ring (16) are connected to the lower limit semi-ring (17). The upper limit semi-ring (16) and the lower limit semi-ring (17) form a circular ring and cooperate with the groove (5) of the cylindrical valve body (1).

2. The electric regulating valve according to claim 1, characterized in that: A sealing sleeve (18) is arranged inside the connecting seat (3).

3. The electric regulating valve according to claim 1, characterized in that: Both ends of the upper limit semi-ring (16) and the lower limit semi-ring (17) are provided with extension plates (19), and the extension plate (19) of the upper limit semi-ring (16) and the extension plate (19) of the lower limit semi-ring (17) are connected by bolts and nuts.

4. The electric regulating valve according to claim 1, characterized in that: The two ends of the column (10) are respectively welded to the second flange (11) and the bottom plate (9), and the top end of the support rod (15) is welded to the bottom plate (9).

5. The electric regulating valve according to claim 1, characterized in that: Both ends of the cylindrical valve body (1) are provided with connecting flanges (20).

6. The electric regulating valve according to claim 1, characterized in that: The width of the upper limit semi-ring (16) and the lower limit semi-ring (17) is consistent with the width of the slot (5).

Images