A connection structure of an electric actuator for a valve

Abstract

The utility model discloses a connection structure of electric actuator for valve, include: valve body, the upside of valve body is installed with actuator body, and the downside of actuator body is provided with four groups of support pole. The utility model discloses through installing actuator body on the surface of valve body, and the output shaft is inserted into the inside of valve stem, is connected through the connecting unit, then is locked to output shaft and valve stem through the clamping unit, further increases the connection stability of output shaft and valve stem, and the simple operation is not affected by support pole, and the operation is convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of electric actuators, and in particular to a connection structure for an electric actuator for valves. Background Technology

[0002] Electric actuators for valves are automated devices driven by electricity, used to control the opening, closing, or regulation of valves, and to achieve remote or automatic control of the flow rate, pressure, or flow direction of media (liquids, gases, etc.) in pipelines. They are widely used in petroleum, chemical, power, water treatment, pharmaceutical and other fields.

[0003] When existing electric actuators are connected to valves, they are usually connected through an output shaft that mates with the valve. This connection requires several bolts for locking. However, the support base around the output shaft of some electric actuators can affect the rotation of the bolts, making bolt locking difficult. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the connection structure of the current electric actuator for valves, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a connection structure for an electric actuator for valves, which solves the problem that "existing electric actuators are usually connected to valves through an output shaft that docks with the valve, which requires several bolts for locking. However, the support seat around the output shaft of some electric actuators affects the rotation of the bolts and makes it inconvenient to lock the bolts".

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A connection structure for an electric actuator for a valve, comprising:

[0009] The valve body has an actuator body mounted on its upper side and four sets of support rods on its lower side.

[0010] A connecting unit is disposed between the valve body and the actuator body. The connecting unit includes an output shaft and a valve stem for driving the valve body to open and close.

[0011] A locking unit is disposed on the surface of the output shaft. The locking unit includes two sets of insert rods for locking the output shaft and the valve stem.

[0012] As a preferred embodiment of the connection structure of the electric actuator for valves described in this utility model, the connection unit includes an output shaft disposed on the lower side of the actuator body, and a valve stem disposed at the lower end of the output shaft. The valve stem is mounted on the upper side of the valve body, and a connecting groove is formed on the upper surface of the valve stem. The inner wall surface of the connecting groove is movably connected to the surface of the output shaft, and a fixing hole is formed on the surface of the valve stem.

[0013] As a preferred embodiment of the connection structure of the electric actuator for valve described in this utility model, the inner wall of the connection groove is provided with limit grooves on both sides, and the inner wall surface of the limit groove is movably connected with side plates, and both sets of side plates are fixedly connected to both sides of the output shaft.

[0014] As a preferred embodiment of the connection structure of the electric actuator for valve described in this utility model, the lower surfaces of both sets of side plates are curved, and the curved surfaces are movably connected to the inner wall surface of the limiting groove.

[0015] As a preferred embodiment of the connection structure of the electric actuator for valve described in this utility model, the engaging unit includes a movable sleeve that is slidably connected to the surface of the output shaft, and two sets of insert rods are slidably connected inside the movable sleeve. The surfaces of the two sets of insert rods are slidably connected to the inner wall surface of the fixing hole. The surface of the output shaft is provided with an insertion hole, and the inner wall surface of the insertion hole is slidably connected to the surfaces of the two sets of insert rods.

[0016] As a preferred embodiment of the connection structure of the electric actuator for valve described in this utility model, the surfaces of both sets of insert rods are fixedly connected to fixing plates, and the surfaces of the fixing plates are slidably connected to the inner wall surface of the movable sleeve. The opposite sides of the two sets of fixing plates are fixedly connected to springs, and the other ends of the springs are fixedly connected to the inner wall surface of the movable sleeve.

[0017] As a preferred embodiment of the connection structure of the electric actuator for valve described in this utility model, the movable sleeve has two sets of sliding grooves on one side, and the inner wall surface of each sliding groove is slidably connected to a slider. Both sets of sliders are fixedly connected to a fixed plate, and one end of each set of sliders is fixedly connected to a lever.

[0018] As a preferred embodiment of the connection structure of the electric actuator for valve described in this utility model, the output shaft has another insertion hole on its surface, and the other insertion hole is located on the upper side of the insertion hole, and the inner wall surface of the other insertion hole is slidably connected to the insertion rod.

[0019] The beneficial effects of this utility model are:

[0020] The actuator body is mounted on the surface of the valve body, and the output shaft is inserted into the valve stem. The connection is made through a connecting unit, and then the output shaft and valve stem are locked by a locking unit, which further increases the connection stability of the output shaft and valve stem. At the same time, the operation is simple, unaffected by the support rod, and easy to operate. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0022] Figure 1 This is a three-dimensional structural diagram of the connection structure of an electric actuator for a valve proposed in this utility model.

[0023] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure cross-section;

[0024] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 4 This is an exploded view of the three-dimensional structure of the card unit.

[0026] In the diagram: 100, valve body; 101, actuator body; 102, support rod; 200, connecting unit; 201, output shaft; 202, valve stem; 203, connecting groove; 204, limit groove; 205, side plate; 207, fixing hole; 300, engaging unit; 301, movable sleeve; 302, slide groove; 303, insertion rod; 304, fixing plate; 305, spring; 306, slider; 307, lever; 308, insertion hole. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0031] Example 1

[0032] Reference Figure 1-2 This is the first embodiment of the present invention, which provides a connection structure for an electric actuator for a valve, comprising:

[0033] The valve body 100 has an actuator body 101 mounted on its upper side, and four sets of support rods 102 are provided on the lower side of the actuator body 101.

[0034] A connecting unit 200 is disposed between the valve body 100 and the actuator body 101. The connecting unit 200 includes an output shaft 201 and a valve stem 202, which are used to drive the valve body 100 to open and close. The actuator body 101 can drive the output shaft 201 to rotate, and the valve stem 202 can drive the valve body 100 to open and close.

[0035] The locking unit 300 is disposed on the surface of the output shaft 201. The locking unit 300 includes two sets of insert rods 303 for locking the output shaft 201 and the valve rod 202.

[0036] In use, the actuator body 101 is installed on the surface of the valve body 100, and the output shaft 201 is inserted into the valve stem 202. The connection is made through the connecting unit 200, and then the locking unit 300 locks the output shaft 201 and the valve stem 202, which further increases the connection stability of the output shaft 201 and the valve stem 202. At the same time, the operation is simple and easy to operate.

[0037] Example 2

[0038] Reference Figure 2-4This is the second embodiment of the present invention. Unlike the previous embodiment, the connecting unit 200 includes an output shaft 201 disposed on the lower side of the actuator body 101, and a valve stem 202 is disposed at the lower end of the output shaft 201. The valve stem 202 is installed on the upper side of the valve body 100. A connecting groove 203 is formed on the upper surface of the valve stem 202, and the inner wall surface of the connecting groove 203 is movably connected to the surface of the output shaft 201. A fixing hole 207 is formed on the surface of the valve stem 202 for connecting the output shaft 201 and the valve stem 202.

[0039] Furthermore, limiting grooves 204 are provided on both sides of the inner wall of the connecting groove 203, and side plates 205 are movably connected to the inner wall surface of the limiting grooves 204. Both sets of side plates 205 are fixedly connected to both sides of the output shaft 201, limiting the output shaft 201 inside the valve stem 202.

[0040] Furthermore, the lower surfaces of both sets of side plates 205 are curved, and the curved surfaces are movably connected to the inner wall surface of the limiting groove 204, making it easy for the side plates 205 to slide into the limiting groove 204.

[0041] Furthermore, the locking unit 300 includes a movable sleeve 301 that is slidably connected to the surface of the output shaft 201, and two sets of insert rods 303 are slidably connected inside the movable sleeve 301. The surfaces of the two sets of insert rods 303 are slidably connected to the inner wall surface of the fixing hole 207. The surface of the output shaft 201 is provided with an insertion hole 308, and the inner wall surface of the insertion hole 308 is slidably connected to the surfaces of the two sets of insert rods 303. The insert rods 303 are slid into the fixing hole 207 and the insertion hole 308 to lock the output shaft 201 and the valve stem 202.

[0042] Furthermore, a fixing plate 304 is fixedly connected to the surface of both sets of insertion rods 303, and the surface of the fixing plate 304 is slidably connected to the inner wall surface of the movable sleeve 301. A spring 305 is fixedly connected to the opposite side of both sets of fixing plates 304, and the other end of the spring 305 is fixedly connected to the inner wall surface of the movable sleeve 301. The spring force of the spring 305 pushes the insertion rod 303 to move, so that the insertion rod 303 slides into the fixing hole 207 and the insertion hole 308.

[0043] Furthermore, two sets of sliding grooves 302 are provided on one side of the movable sleeve 301, and sliders 306 are slidably connected to the inner wall surface of each sliding groove 302. Both sets of sliders 306 are fixedly connected to the fixed plate 304, and a lever 307 is fixedly connected to one end of each set of sliders 306. By pushing the lever 307, the sliders 306 are moved, so that the sliders 306 drive the insertion rod 303 to slide inside the movable sleeve 301 through the fixed plate 304.

[0044] Furthermore, the surface of the output shaft 201 is provided with another insertion hole 308, and the other insertion hole 308 is located on the upper side of the insertion hole 308. The inner wall surface of the other insertion hole 308 is slidably connected to the insertion rod 303 to fix and store the movable sleeve 301 and the insertion rod 303 before installation.

[0045] In use, the actuator body 101 is installed on the surface of the valve body 100, and the output shaft 201 is inserted into the valve stem 202. The side plate 205, which is fixedly connected to the output shaft 201, slides into the limiting groove 204, connecting the output shaft 201 and the valve stem 202. Then, by moving the dial plate 307, the slider 306 slides inside the slide groove 302. The fixing plate 304, which is fixedly connected to the slider 306, drives the insertion rod 303 to slide out from the other insertion hole 308. Then, the movable sleeve 301 is pulled down on the surface of the output shaft 201, aligning the insertion rod 303 with the fixing hole 207 and the insertion hole 308. Under the elastic force of the spring 305, the fixing plate 304 drives the insertion rod 303 to slide into the fixing hole 207 and the insertion hole 308, thereby locking the output shaft 201 and the valve stem 202, further increasing the connection stability of the output shaft 201 and the valve stem 202.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A connection structure for an electric actuator for a valve, characterized in that: include: A valve body (100) is provided with an actuator body (101) mounted on its upper side, and four sets of support rods (102) are provided on the lower side of the actuator body (101). A connecting unit (200) is disposed between the valve body (100) and the actuator body (101). The connecting unit (200) includes an output shaft (201) and a valve stem (202) for driving the valve body (100) to open and close. A locking unit (300) is disposed on the surface of the output shaft (201). The locking unit (300) includes two sets of insert rods (303) for locking the output shaft (201) and the valve stem (202).

2. The connection structure of an electric actuator for a valve according to claim 1, characterized in that: The connecting unit (200) includes an output shaft (201) disposed on the lower side of the actuator body (101), and a valve stem (202) is disposed at the lower end of the output shaft (201). The valve stem (202) is installed on the upper side of the valve body (100). A connecting groove (203) is provided on the upper surface of the valve stem (202), and the inner wall surface of the connecting groove (203) is movably connected to the surface of the output shaft (201). A fixing hole (207) is provided on the surface of the valve stem (202).

3. The connection structure of an electric actuator for a valve according to claim 2, characterized in that: The inner wall of the connecting groove (203) has a limiting groove (204) on both sides, and the inner wall surface of the limiting groove (204) is movably connected with a side plate (205). Both sets of side plates (205) are fixedly connected to both sides of the output shaft (201).

4. The connection structure of an electric actuator for a valve according to claim 3, characterized in that: The lower surfaces of both sets of side plates (205) are curved, and the curved surfaces are movably connected to the inner wall surface of the limiting groove (204).

5. The connection structure of an electric actuator for a valve according to claim 1, characterized in that: The engaging unit (300) includes a movable sleeve (301) that is slidably connected to the surface of the output shaft (201), and two sets of insert rods (303) are slidably connected inside the movable sleeve (301). The surfaces of the two sets of insert rods (303) are slidably connected to the inner wall surface of the fixing hole (207). The surface of the output shaft (201) is provided with a socket (308), and the inner wall surface of the socket (308) is slidably connected to the surfaces of the two sets of insert rods (303).

6. The connection structure of an electric actuator for a valve according to claim 5, characterized in that: Both sets of the insert rods (303) are fixedly connected to the surface of the fixing plate (304), and the surface of the fixing plate (304) is slidably connected to the inner wall surface of the movable sleeve (301). Both sets of the fixing plates (304) are fixedly connected to the opposite side of the fixing plate (304), and the other end of the spring (305) is fixedly connected to the inner wall surface of the movable sleeve (301).

7. The connection structure of an electric actuator for a valve according to claim 6, characterized in that: Two sets of sliding grooves (302) are provided on one side of the movable sleeve (301), and sliders (306) are slidably connected to the inner wall surface of each sliding groove (302). Both sets of sliders (306) are fixedly connected to the fixed plate (304), and a lever plate (307) is fixedly connected to one end of each set of sliders (306).

8. The connection structure of an electric actuator for a valve according to claim 7, characterized in that: The output shaft (201) has another insertion hole (308) on its surface, and the other insertion hole (308) is located on the upper side of the insertion hole (308). The inner wall surface of the other insertion hole (308) is slidably connected to the insertion rod (303).

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