An electrically operated valve

Abstract

The utility model relates to valve technology field especially relates to a kind of electric valve.The electric valve includes valve body, electric actuator and connecting bracket;Connecting bracket is located between valve body and electric actuator and is connected with valve body;One of electric actuator and connecting bracket is provided with M positioning slots, and the other is provided with N positioning parts, each positioning slot is distributed on the circumference with the output shaft of electric actuator as central axis, each positioning part is selectively inserted into positioning slot, wherein, 2≤N≤M.Operation personnel can adjust the corresponding plug-in relationship between each positioning part and each positioning slot according to actual installation space size and the orientation of pipe joint, thereby adjusting the installation angle between electric actuator and valve body, so that the electric valve can be applied to different installation environments, and the versatility is stronger.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to an electric valve. Background Technology

[0002] Ball valves are primarily used to connect or disconnect fluid media, and can also be used for the regulation and control of fluid media. Due to their good sealing performance and small size, they are widely used in pipeline systems. A ball valve typically consists of a valve body, a ball, and a stem. The stem drives the ball to rotate, thus connecting or disconnecting the pipeline. Depending on the actuation method, ball valves can be divided into manual ball valves and electric ball valves. Manual ball valves also include a handwheel or handle connected to the free end of the stem. The operator manually rotates the handwheel or handle to rotate the stem, thereby rotating the ball. Electric ball valves also include an electric actuator. The output end of the electric actuator is connected to the free end of the stem to drive the stem to rotate, which in turn drives the ball.

[0003] In related technologies, the electric actuator and valve stem of an electric ball valve are often connected by a union. However, the following problems usually exist during installation: 1) The operator needs to manually tighten the union to complete the assembly. However, due to the small size of the union nut and the large size of the electric actuator, it is inconvenient to apply external force when tightening, which makes it impossible to quickly and accurately complete the positioning and installation of the valve stem and the electric actuator; 2) After the threaded connection, the installation angle between the electric actuator and the valve body is fixed. Due to the limitation of the installation space, the electric ball valve can usually only be used in pipeline systems where the pipe joints have a fixed orientation, resulting in poor versatility.

[0004] Therefore, there is an urgent need for an electric valve to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an electric valve that has a simple structure, low assembly difficulty, high assembly efficiency, and can be applied to different installation environments, making it highly versatile.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An electric valve includes a valve body, an electric actuator, and a connecting bracket;

[0008] The connecting bracket is located between the valve body and the electric actuator and is connected to the valve body;

[0009] One of the electric actuator and the connecting bracket is provided with M positioning slots, and the other is provided with N positioning parts. Each positioning slot is distributed on the circumference with the output shaft of the electric actuator as the central axis. Each positioning part can be selectively inserted into the positioning slot, wherein 2≤N≤M.

[0010] As a preferred embodiment of the electric valve provided by this utility model, M=4, N≤4, the central angle between two adjacent positioning grooves is 90°, and the central angle between two adjacent positioning parts is 90° or an integer multiple of 90°;

[0011] Alternatively, M=8, N≤8, the central angle between two adjacent positioning slots is 45°, and the central angle between two adjacent positioning parts is 45° or an integer multiple of 45°.

[0012] As a preferred embodiment of the electric valve provided by this utility model, the positioning part is disposed on the connecting bracket, and the positioning groove is formed on the electric actuator.

[0013] As a preferred embodiment of the electric valve provided by this utility model, the cross-sectional shape of the connecting bracket is quadrilateral, and when N≤4, the positioning part is located at the corner of the connecting bracket.

[0014] As a preferred embodiment of the electric valve provided by this utility model, when each of the positioning parts is inserted into the corresponding positioning groove, the length direction of the electric actuator is parallel or perpendicular to the axial direction of the valve body.

[0015] As a preferred embodiment of the electric valve provided by this utility model, at least a portion of the positioning part is provided with a guide slope.

[0016] As a preferred embodiment of the electric valve provided by this utility model, the positioning part is fitted with the positioning groove with a clearance.

[0017] As a preferred embodiment of the electric valve provided by this utility model, the connecting bracket has at least one first weight-reducing groove.

[0018] And / or, the positioning part has a second weight-reducing groove.

[0019] As a preferred embodiment of the electric valve provided by this utility model, the top of the valve body is formed with an installation platform, and the connecting bracket is connected to the installation platform.

[0020] As a preferred embodiment of the electric valve provided by this utility model, the electric valve further includes fasteners, a first connecting hole is provided on the mounting platform, a second connecting hole is provided on the connecting bracket, and the fasteners are sequentially inserted into the first connecting hole and the second connecting hole to connect the connecting bracket to the valve body.

[0021] The beneficial effects of this utility model are:

[0022] The electric valve provided by this utility model features a connecting bracket with M positioning slots on one of the brackets and the electric actuator, and N positioning parts protruding from the other. Each positioning part can be selectively inserted into a positioning slot. Operators can adjust the corresponding insertion relationship between the positioning parts and positioning slots according to the actual installation space and the orientation of the pipe joints, thereby adjusting the installation angle between the electric actuator and the valve body. This makes the electric valve suitable for different installation environments, exhibiting strong versatility. By setting 2≤N≤M, the number of positioning parts can be reduced while ensuring accurate assembly of the connecting bracket and the electric actuator, improving processing efficiency and reducing material costs. Furthermore, compared to related technologies that use a union to assemble the valve assembly and electric actuator, this electric valve allows for simpler assembly: first, the connecting bracket is connected to the valve body; then, the positioning parts are aligned with their corresponding positioning slots and inserted; finally, the output end of the electric actuator is fixed to the valve stem using fasteners. This reduces assembly difficulty and significantly improves assembly efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the electric valve provided in this embodiment of the utility model;

[0024] Figure 2 This is a cross-sectional schematic diagram of the electric valve provided in an embodiment of this utility model;

[0025] Figure 3 This is an exploded view of the electric valve provided in this embodiment of the utility model;

[0026] Figure 4 This is one of the structural schematic diagrams of the connecting bracket provided in this utility model embodiment;

[0027] Figure 5 This is a partial structural schematic diagram of the electric actuator provided in this embodiment of the utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the electric actuator and the valve body in the electric valve provided in this embodiment of the utility model when they have different installation angles;

[0029] Figure 7 This is the second structural schematic diagram of the connecting bracket provided in this embodiment of the utility model;

[0030] Figure 8 This is a partial structural schematic diagram of the valve body provided in an embodiment of this utility model.

[0031] In the picture:

[0032] 10. Valve assembly; 11. Valve body; 110. First channel; 111. Mounting platform; 1110. First connecting hole; 12. Valve stem; 13. Valve ball; 130. Second channel; 14. Valve seat; 140. Through hole;

[0033] 20. Electric actuator; 21. Positioning slot; 211. First positioning slot; 212. Second positioning slot; 213. Third positioning slot; 214. Fourth positioning slot; 22. Connecting kit;

[0034] 30. Connecting bracket; 301. First weight-reducing groove; 31. Positioning part; 3101. Guide slope; 3102. Second weight-reducing groove; 311. First positioning part; 312. Second positioning part; 313. Third positioning part; 314. Fourth positioning part; 32. Second connecting hole;

[0035] 40. Fasteners;

[0036] 50. Fasteners. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] Figure 1 A schematic diagram of the electric valve provided in this embodiment is shown. Figure 2 A cross-sectional schematic diagram of the electric valve provided in this embodiment is shown. (As shown...) Figures 1-2 As shown, this embodiment provides an electric valve, and in some embodiments, the electric valve is specifically an electric ball valve.

[0041] Specifically, the electric valve includes a valve assembly 10 and an electric actuator 20. The valve assembly 10 includes a valve body 11, a valve stem 12, a valve ball 13, and a valve seat 14. The valve body 11 has a first channel 110 for the passage of fluid medium. The valve seat 14 is disposed within the valve body 11 and has a through hole 140. The valve ball 13 has a second channel 130 and is rotatably disposed in the first channel 110, and can cooperate with the valve seat 14 to realize the opening and closing of the first channel 110. One end of the valve stem 12 is connected to the valve ball 13, and the other end extends out of the valve body 11 and is connected to the output end of the electric actuator 20. When the electric actuator 20 operates, it can drive the valve stem 12 to rotate, thereby driving the valve ball 13 to rotate. Specifically, when the valve ball 13 rotates until the second channel 130 intersects with the through hole 140 of the valve seat 14, the electric valve is in the open state; when the valve ball 13 rotates until the second channel 130 is misaligned with the through hole 140 of the valve seat 14, the electric valve is in the closed state. Furthermore, as the valve ball 13 rotates, the area of ​​intersection between the second channel 130 and the through hole 140 of the valve seat 14 changes accordingly, and the flow rate of the fluid medium through the first channel 110 also changes, thereby enabling control of the pipeline flow rate.

[0042] In some embodiments, the electric valve further includes a fixing member 40, which is used to connect the output end of the electric actuator 20 to the valve stem 12, thereby achieving a fixed connection between the electric actuator 20 and the valve body 11. Optionally, the fixing member 40 is a fixing bolt, and bolted connections have the advantages of tight connection and convenient assembly and disassembly.

[0043] It is understandable that electric ball valves are a common valve structure in the field of pipeline connection. In this embodiment, the specific structure and working principle of valve assembly 10 and electric actuator 20 will not be described in detail.

[0044] Figure 3 An exploded schematic diagram of the electric valve provided in this embodiment is shown. Figure 4 One of the structural schematic diagrams of the connecting bracket 30 provided in this embodiment is shown. Figure 5 A partial structural schematic diagram of the electric actuator 20 provided in this embodiment is shown. For example... Figures 3-5 and combined Figure 2As shown, the electric valve also includes a connecting bracket 30, which is located between the valve body 11 and the electric actuator 20 and connected to the valve body 11. One of the electric actuator 20 and the connecting bracket 30 is provided with M positioning grooves 21, and the other is provided with N positioning parts 31. Each positioning groove 21 is distributed on the circumference with the output shaft of the electric actuator 20 as the central axis. Each positioning part 31 can be selectively inserted into the positioning groove 21, wherein 2≤N≤M.

[0045] The electric valve provided in this embodiment features a connecting bracket 30 with M positioning slots 21 on one of the connecting bracket 30 and the electric actuator 20, and N positioning parts 31 protruding from the other. Each positioning part 31 can be selectively inserted into the positioning slot 21. The operator can adjust the corresponding insertion relationship between each positioning part 31 and each positioning slot 21 according to the actual installation space and the orientation of the pipe joints, thereby adjusting the installation angle between the electric actuator 20 and the valve body 11. This allows the electric valve to be suitable for different installation environments, demonstrating strong versatility. By setting 2≤N≤M, the number of positioning parts 31 can be reduced while ensuring accurate assembly of the connecting bracket 30 and the electric actuator 20, improving processing efficiency and reducing material costs. Furthermore, compared to the related technologies that use a live joint to assemble the valve assembly 10 and the electric actuator 20, this electric valve can be assembled by first connecting the connecting bracket 30 to the valve body 11, then aligning each positioning part 31 with the corresponding positioning groove 21 and inserting it, and finally using the fixing part 40 to fix the output end of the electric actuator 20 to the valve stem 12. This method is less difficult to assemble and can greatly improve assembly efficiency.

[0046] Understandably, given the thinness of the connecting bracket 30, placing the positioning groove 21 on it would negatively impact its structural strength. To address this, in this embodiment, the positioning part 31 is positioned on the connecting bracket 30, while the positioning groove 21 is located on the electric actuator 20. The positioning part 31 serves both a positioning function and as a reinforcing structure for the connecting bracket 30, thereby improving its structural strength and extending the service life of the electric valve.

[0047] In some embodiments, M=4, N≤4, the central angle between two adjacent positioning slots 21 is 90°, and the central angle between two adjacent positioning parts 31 is 90° or an integer multiple of 90°. This design ensures that the positioning parts 31 can be simultaneously inserted into the corresponding positioning slots 21, thereby guaranteeing the accurate and stable installation of the connecting bracket 30 and the electric actuator 20. When N=1, after the electric actuator 20 is assembled with the valve body 11 through the connecting bracket 30, the electric actuator 20 may rotate around the positioning part 31 as an axis, affecting the performance of the electric valve. Therefore, the preferred values ​​for N are 2, 3, and 4.

[0048] In some embodiments, M=8, N≤8, the central angle between two adjacent positioning slots 21 is 45°, and the central angle between two adjacent positioning parts 31 is 45° or an integer multiple of 45°. This design ensures that the positioning parts 31 can be simultaneously inserted into the corresponding positioning slots 21, thereby guaranteeing the accurate and stable installation of the connecting bracket 30 and the electric actuator 20. When N=1, after the electric actuator 20 is assembled with the valve body 11 through the connecting bracket 30, the electric actuator 20 may rotate around the positioning part 31 as an axis, affecting the performance of the electric valve. Therefore, the preferred values ​​for N are 2, 3, 4, 5, 6, 7, and 8.

[0049] It should be noted that the values ​​of M and N are not limited to the values ​​mentioned above. Those skilled in the art can make adaptive adjustments to the values ​​of M and N according to actual processing and usage requirements, which are not limited here.

[0050] Figure 6 A schematic diagram is shown below illustrating the structure of the electric actuator 20 and the valve body 11 in the electric valve provided in this embodiment when they have different installation angles. Figure 1 , Figures 4-6 The statement "each positioning part 31 can be selectively inserted into the positioning groove 21" is explained.

[0051] For example, such as Figures 4-6 and combined Figure 1 As shown, in this embodiment, M=4, N=4, that is, the electric actuator 20 is provided with four positioning slots 21, and the connecting bracket 30 is provided with four positioning parts 31. For ease of understanding, the four positioning slots 21 provided on the electric actuator 20 are arranged along... Figure 5 The counterclockwise directions shown are defined as the first positioning groove 211, the second positioning groove 212, the third positioning groove 213, and the fourth positioning groove 214, respectively. The four protruding positioning parts 31 on the connecting bracket 30 are arranged along... Figure 4 The clockwise directions shown are defined as the first positioning part 311, the second positioning part 312, the third positioning part 313, and the fourth positioning part 314, respectively.

[0052] During assembly, the corresponding insertion relationship between each positioning part 31 and each positioning groove 21 can be as follows: 1) The first positioning part 311 is inserted into the first positioning groove 211, the second positioning part 312 is inserted into the second positioning groove 212, the third positioning part 313 is inserted into the third positioning groove 213, and the fourth positioning part 314 is inserted into the fourth positioning groove 214 (corresponding to...). Figure 6 Example number 001). 2) The first positioning part 311 is inserted into the second positioning groove 212, the second positioning part 312 is inserted into the third positioning groove 213, the third positioning part 313 is inserted into the fourth positioning groove 214, and the fourth positioning part 314 is inserted into the first positioning groove 211 (corresponding to...). Figure 6 Example number 002). 3) The first positioning part 311 is inserted into the third positioning groove 213, the second positioning part 312 is inserted into the fourth positioning groove 214, the third positioning part 313 is inserted into the first positioning groove 211, and the fourth positioning part 314 is inserted into the second positioning groove 212 (corresponding to...). Figure 6 (Example number 003 in the text). 4) The first positioning part 311 is inserted into the fourth positioning groove 214, the second positioning part 312 is inserted into the first positioning groove 211, the third positioning part 313 is inserted into the second positioning groove 212, and the fourth positioning part 314 is inserted into the third positioning groove 213 (corresponding to...). Figure 6 Example label 004 in the example.

[0053] When each positioning part 31 is inserted into its corresponding positioning slot 21, the length direction of the electric actuator 20 is parallel or perpendicular to the axial direction of the valve body 11. In practical applications, such as... Figure 6 The four examples shown can basically meet all installation environments in related technologies, and are more versatile.

[0054] like Figure 4 As shown, at least a portion of the positioning part 31 is provided with a guide slope 3101 to provide guidance for the assembly between the positioning part 31 and the positioning groove 21, thereby ensuring that the electric actuator 20 and the connecting bracket 30 can be assembled quickly and accurately.

[0055] In some embodiments, the positioning part 31 is clearance-fitted with the positioning groove 21. This design allows the positioning part 31 to be smoothly inserted into the corresponding positioning groove 21, facilitating the assembly and disassembly of the electric valve. Furthermore, after the electric actuator 20 and the connecting bracket 30 are assembled, the position can be finely adjusted within a small angle range to suit the current installation space.

[0056] In some embodiments, the connecting bracket 30 has at least one first weight-reducing groove 301. The positioning part 31 has a second weight-reducing groove 3102. By providing the first weight-reducing groove 301 and the second weight-reducing groove 3102, the material used in the connecting bracket 30 can be reduced while ensuring that the connecting bracket 30 has sufficient structural strength, thereby significantly reducing material costs.

[0057] Figure 7 The second schematic diagram of the structure of the connecting bracket 30 provided in this embodiment is shown. Figure 8 A partial structural schematic diagram of the valve body 11 provided in this embodiment is shown. For example... Figures 7-8 and combined Figure 2 , Figure 3 As shown, a mounting platform 111 is formed on the top of the valve body 11, and the connecting bracket 30 is connected to the mounting platform 111. By providing the mounting platform 111 on the top of the valve body 11, the connection between the connecting bracket 30 and the valve body 11 can be facilitated, avoiding the unstable installation caused by connecting the connecting bracket 30 to the circumferential surface of the valve body 11.

[0058] In some embodiments, the electric valve further includes a fastener 50. A first connecting hole 1110 is provided on the mounting platform 111, and a second connecting hole 32 is provided on the connecting bracket 30. The fastener 50 passes sequentially through the first connecting hole 1110 and the second connecting hole 32 to connect the connecting bracket 30 to the valve body 11. Exemplarily, the fastener 50 is a screw, and at least one of the first connecting hole 1110 and the second connecting hole 32 is a threaded hole. Screw connections have the advantages of simple structure, stable connection, and convenient assembly and disassembly.

[0059] In some embodiments, there are at least two first connection holes 1110, each first connection hole 1110 is arranged at intervals along the circumference of the valve stem 12, and each first connection hole 1110 corresponds to a second connection hole 32 and a fastener 50, so as to further improve the stable connection between the connecting bracket 30 and the valve body 11.

[0060] Specifically, such as Figure 4 and Figure 6 As shown, in this embodiment, the connecting bracket 30 is generally a cuboid structure, with four positioning parts 31. These four positioning parts 31 are located at the four corners of the connecting bracket 30, facilitating accurate positioning by the operator during machining. To facilitate the machining of the second connecting hole 32, two of the positioning parts 31 located diagonally are provided with guide slopes 3101, while the other two diagonally located positioning parts 31 are straight columns, and the second connecting hole 32 is machined at these positions.

[0061] Of course, the positions of the positioning part 31 and the second connecting hole 32 on the connecting bracket 30 are not limited to the above example. Designers can also make adaptive adjustments to the positions of the positioning part 31 and the second connecting hole 32 according to actual processing requirements.

[0062] In other embodiments, the number of positioning parts 31 can be two, with the two positioning parts 31 disposed at two diagonally opposite corner positions of the connecting bracket 30; or, the number of positioning parts 31 can be three, with the three positioning parts 31 disposed at three adjacent corner positions of the connecting bracket 30.

[0063] like Figure 2 , Figure 5 as well as Figure 8 As shown, the output end of the electric actuator 20 is connected to a connecting kit 22, which passes through the connecting bracket 30 and is fitted onto the valve stem 12. By setting the connecting kit 22, a stable connection between the electric actuator 20 and the valve stem 12 can be ensured, avoiding insufficient connection distance between the two due to the setting of the connecting bracket 30.

[0064] In some embodiments, the connecting kit 22 has a non-circular insertion hole into which the valve stem 12 is inserted and fixed to achieve a stable connection between the two and ensure that the electric actuator 20 can drive the valve stem 12 to rotate when it is working, thus avoiding relative rotation between the two. It is understood that the insertion hole is rotationally symmetrical so that the valve stem 12 can be inserted into the insertion hole of the connecting kit 22 at different installation angles for both the electric actuator 20 and the valve body 11.

[0065] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An electric valve, characterized in that, Includes valve body (11), electric actuator (20) and connecting bracket (30); The connecting bracket (30) is located between the valve body (11) and the electric actuator (20) and is connected to the valve body (11); One of the electric actuator (20) and the connecting bracket (30) is provided with M positioning slots (21), and the other is provided with N positioning parts (31). Each positioning slot (21) is distributed on the circumference with the output shaft of the electric actuator (20) as the central axis. Each positioning part (31) can be selectively inserted into the positioning slot (21), wherein 2≤N≤M.

2. The electric valve according to claim 1, characterized in that, M=4, N≤4, the central angle between two adjacent positioning slots (21) is 90°, and the central angle between two adjacent positioning parts (31) is 90° or an integer multiple of 90°; Alternatively, M=8, N≤8, the central angle between two adjacent positioning slots (21) is 45°, and the central angle between two adjacent positioning parts (31) is 45° or an integer multiple of 45°.

3. The electric valve according to claim 1, characterized in that, The positioning part (31) is disposed on the connecting bracket (30), and the positioning groove (21) is formed on the electric actuator (20).

4. The electric valve according to claim 3, characterized in that, The cross-sectional shape of the connecting bracket (30) is quadrilateral. When N≤4, the positioning part (31) is located at the corner of the connecting bracket (30).

5. The electric valve according to claim 1, characterized in that, When each of the positioning parts (31) is inserted into the corresponding positioning groove (21), the length direction of the electric actuator (20) is parallel or perpendicular to the axial direction of the valve body (11).

6. The electric valve according to claim 1, characterized in that, At least part of the positioning part (31) is provided with a guide slope (3101).

7. The electric valve according to claim 1, characterized in that, The positioning part (31) is in clearance fit with the positioning groove (21).

8. The electric valve according to claim 1, characterized in that, The connecting bracket (30) has at least one first weight-reducing groove (301); And / or, the positioning part (31) has a second weight-reducing groove (3102).

9. The electric valve according to any one of claims 1 to 8, characterized in that, The valve body (11) has an installation platform (111) formed on its top, and the connecting bracket (30) is connected to the installation platform (111).

10. The electric valve according to claim 9, characterized in that, The electric valve also includes a fastener (50), the mounting platform (111) is provided with a first connection hole (1110), the connecting bracket (30) is provided with a second connection hole (32), the fastener (50) is sequentially inserted into the first connection hole (1110) and the second connection hole (32) to connect the connecting bracket (30) to the valve body (11).

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