Micro valve electric actuator structure

Abstract

The utility model discloses an electric actuator structure of a miniature valve, which comprises a valve body and an electric actuator arranged at the upper end of the valve body. The mounting mechanism is used for forming a quick-release mounting structure, the connecting mechanism is used for forming a combined connecting structure, the limiting mechanism is used for limiting a valve rod of the valve, the mounting mechanism is arranged on the side portion of the valve body, and the connecting mechanism is assembled between the mounting mechanism and the electric actuator. The electric actuator has the advantages that the installation mechanism is arranged to be matched with the connecting mechanism, rapid disassembly and assembly connection between the electric actuator and the valve body can be achieved, manual pre-fixing is not needed in the installation process, the installation, debugging and maintenance difficulty is effectively lowered, the installation stability is high, and the installation efficiency is high. The mounting mechanism is not limited by valve types, the mounting requirements of various types of valve bodies can be met, the limiting mechanism is arranged, and the valve body and the valve rod can be limited so that the phenomenon that the valve rod deviates or shakes can be avoided.

Description

Technical Field

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

[0002] In the prior art, an electric actuator is a drive device that can provide linear or rotary motion. It uses some kind of driving energy and works under the action of some control signal. The actuator uses liquid, gas, electricity or other energy and converts it into driving force through a motor, cylinder or other device. In actual use, if an emergency occurs, the electric actuator needs to be manually operated in an emergency. Existing actuators, due to the use of AC motors, have a relatively large holding force. To enable manual operation in emergencies, a separate manual gear needs to be added to the existing transmission gear system. This manual gear meshes with the main gear in the gear system. When using the manual gear for manual operation, the motor must be disconnected first, and then the manual gear must be disengaged from the motor gear before it can be easily turned. Current actuators need to be installed on the corresponding equipment surface, and the current method is generally bolt connection. This is prone to shaking during operation, leading to loosening or even separation. Manual pre-fixing is required during installation, which is labor-intensive. After installation, the actuator is generally suspended in a state, which is not stable enough and requires a support device, increasing the difficulty of installation, debugging, and maintenance. It cannot achieve quick disassembly and assembly of electric actuators and cannot meet the installation requirements of various types of valve bodies.

[0003] Chinese utility model patent application number 202121312773.5 discloses a valve electric actuator, including an actuator body and a fixing component. The fixing component is disposed on the actuator body, which includes a motor, and the fixing component cooperates with the motor. The fixing component includes a housing with a hollow portion formed inside, and the motor is disposed within the hollow portion. Multiple reinforcing ribs are axially arranged within the hollow portion, and the motor is clamped and fixed by the reinforcing ribs to prevent the motor from moving within the actuator. However, this type of valve electric actuator is directly connected to the valve body with bolts, requiring manual pre-fixing during installation, which is labor-intensive, has poor stability, requires a support device, increases the difficulty of installation, debugging, and maintenance, and cannot achieve quick disassembly and assembly of the electric actuator, nor can it meet the installation requirements of various types of valve bodies. Utility Model Content

[0004] The purpose of this invention is to provide a structure for a miniature valve electric actuator.

[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows:

[0006] A micro valve electric actuator structure includes a valve body and an electric actuator, the electric actuator being arranged at the upper end of the valve body. It also includes a mounting mechanism for forming a quick-release mounting structure, a connecting mechanism for forming a combined connection structure, and a limiting mechanism for limiting the valve stem. The mounting mechanism is arranged on the side of the valve body, the connecting mechanism is assembled between the mounting mechanism and the electric actuator, and the limiting mechanism is arranged inside the connecting mechanism.

[0007] The mounting mechanism includes a mounting clamp, a mounting screw, and a clamping assembly. The mounting clamp is located on one side of the valve body and is fastened to the valve body. The mounting screw is located at the open end of the mounting clamp and is fixedly connected to the mounting clamp by a nut. The mounting clamp is fixedly assembled on the side of the valve body by the mounting screw. The clamping assembly is located at the end of the mounting clamp away from the mounting screw.

[0008] The clamping assembly includes a clamping bracket, a clamping screw, and a clamping top block. The clamping bracket is located at the end of the mounting clamp away from the mounting screw and is fixedly connected to the mounting clamp. The side of the clamping bracket away from the mounting clamp has a clamping groove. The clamping screw is located at the end of the clamping bracket away from the mounting clamp corresponding to the clamping groove and is threadedly connected to the clamping bracket. One end of the clamping screw passes through the clamping bracket and is located in the clamping groove. The clamping top block is located at the end of the clamping screw located in the clamping groove and is rotatably connected to the clamping screw.

[0009] It also includes an anti-slip pad, which is disposed on the side of the clamping top block away from the clamping screw and is fixedly connected to the clamping top block.

[0010] The mounting mechanism is provided in two sets, which are symmetrically arranged on both sides of the valve body and the two sets of clamping assemblies are arranged opposite each other.

[0011] The connecting mechanism includes a connecting base plate, a connecting support base, and connecting screws. The connecting base plate is disposed between the two sets of clamping brackets, with its two ends located inside the two clamping slots respectively. The clamping top block abuts against the connecting base plate through the anti-slip pad. The connecting support base is disposed between the connecting base plate and the electric actuator, with its two ends fixedly connected to the connecting base plate and the electric actuator respectively. There are two sets of connecting screws, each set consisting of two sets of screws arranged side by side at intervals. The two sets of connecting screws are symmetrically arranged on both sides of the connection between the connecting support base and the connecting base plate and penetrate the connecting support base and the connecting base plate. The connecting screws are threadedly connected to the connecting support base and the connecting base plate.

[0012] The connecting support base is configured as a box-shaped base structure, and its upper and lower ends are respectively provided with connecting through holes corresponding to the electric actuator and the valve body. The middle part of the connecting base plate is provided with a mounting through hole corresponding to the connecting through hole. The connecting support base is detachably connected to the connecting base plate by the connecting screw.

[0013] The two sets of installation mechanisms and connection mechanisms together constitute a combined quick-installation structure, and the electric actuator is assembled on the valve body through the combined quick-installation structure.

[0014] The limiting mechanism includes a limiting bracket and a limiting ring. The limiting bracket is disposed inside the connecting support and is fixedly connected to the connecting support. The limiting ring is disposed inside the limiting bracket and is fixedly connected to the limiting bracket. The limiting ring is coaxially arranged with the connecting through hole.

[0015] The valve body is provided with flanges at both ends. The valve body is assembled into the pipeline system through the flanges. The valve stem of the valve body passes through the connecting base plate and the connecting support through the mounting through hole and the connecting through hole. The output end of the electric actuator is located inside the limiting ring and is connected to the valve stem of the valve body.

[0016] The beneficial effects of this utility model are:

[0017] Equipped with an installation mechanism and a connection mechanism, it enables quick assembly and disassembly of the electric actuator and the valve body. No manual pre-fixing is required during installation, effectively reducing the difficulty of installation, commissioning, and maintenance. It has strong installation stability, and the installation mechanism is not limited by valve type, meeting the installation requirements of various types of valve bodies. It is equipped with a limit mechanism to limit the valve body and valve stem, preventing the valve stem from shifting or shaking during operation, which could damage the valve body or electric actuator. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the clamping assembly structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection support base and the electric actuator of this utility model.

[0021] In the diagram: 1. Valve body; 2. Electric actuator; 3. Mounting clamp; 4. Mounting screw; 5. Clamping bracket; 6. Clamping screw; 7. Clamping top block; 8. Anti-slip pad; 9. Connecting base plate; 10. Connecting support seat; 11. Connecting screw; 12. Limiting bracket; 13. Limiting ring. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] A miniature valve electric actuator structure includes a valve body 1 and an electric actuator 2, with the electric actuator 2 positioned at the upper end of the valve body 1. The structure also includes a mounting mechanism for a quick-release installation, a connecting mechanism for a combined connection, and a limiting mechanism for limiting the valve stem. The mounting mechanism is located on the side of the valve body 1, the connecting mechanism is assembled between the mounting mechanism and the electric actuator 2, and the limiting mechanism is located inside the connecting mechanism. A schematic diagram of the overall structure of this invention is shown below. Figure 1 As shown.

[0024] The mounting mechanism includes a mounting clamp 3, mounting screws 4, and a clamping assembly. The mounting clamp 3 is located on one side of the valve body 1 and is fastened to the valve body 1. The mounting screw 4 is located at the open end of the mounting clamp 3 and is fixedly connected to the mounting clamp 3 by a nut. The mounting clamp 3 is fixedly assembled to the side of the valve body 1 by the mounting screw 4. The clamping assembly is located at the end of the mounting clamp 3 away from the mounting screw 4. There are two sets of mounting mechanisms, which are symmetrically arranged on both sides of the valve body 1, and the two sets of clamping assemblies are arranged opposite each other. The mounting mechanism, through the cooperation of the mounting clamp 3, mounting screws 4, and clamping assembly, constitutes the mounting structure on the valve body 1. The mounting clamp 3 is used to form a detachable mounting structure on the valve body 1. The mounting screw 4 is used to fix the mounting clamp 3 to stably assemble the mounting clamp 3 onto the valve body 1. The clamping assembly is used to quickly clamp the connecting mechanism and meet the installation requirements of the connecting mechanism. A schematic diagram of the clamping assembly structure of this utility model is shown below. Figure 2 As shown.

[0025] The clamping assembly includes a clamping bracket 5, a clamping screw 6, and a clamping top block 7. The clamping bracket 5 is located at the end of the mounting clamp 3 away from the mounting screw 4 and is fixedly connected to the mounting clamp 3. A clamping groove is provided on the side of the end of the clamping bracket 5 away from the mounting clamp 3. The clamping screw 6 is located at the end of the clamping bracket 5 away from the mounting clamp 3, corresponding to the clamping groove, and is threadedly connected to the clamping bracket 5. One end of the clamping screw 6 passes through the clamping bracket 5 and is located within the clamping groove. The clamping top block 7 is located at the end of the clamping screw 6 located within the clamping groove and is rotatably connected to the clamping screw 6. The clamping assembly is connected via the clamping bracket 5, the clamping screw 6, and... The clamping top block 7 cooperates to quickly clamp the connecting mechanism and meet the installation requirements of the connecting mechanism, thereby meeting the requirements for quick assembly and disassembly between the electric actuator 2 and the valve body 1. The clamping bracket 5 is used to provide installation support for the clamping screw 6, and the clamping screw 6 is used to provide installation support for the clamping top block 7. Through the relative rotation between the screw 6 and the clamping bracket 5, the clamping top block 7 is driven to lift and lower. The clamping top block 7 is used to lift and lower under the action of the clamping screw 6 to adjust the distance between itself and the clamping bracket 5, thereby clamping the connecting mechanism. The clamping groove is used to meet the assembly and disassembly requirements of the connecting mechanism.

[0026] It also includes an anti-slip pad 8, which is disposed on the side of the clamping top block 7 away from the clamping screw 6 and is fixedly connected to the clamping top block 7. The anti-slip pad 8 serves as an anti-slip structure on the clamping top block 7, thereby improving the anti-slip effect between the clamping top block 7 and the connecting mechanism.

[0027] The connecting mechanism includes a connecting base plate 9, a connecting support seat 10, and connecting screws 11. The connecting base plate 9 is disposed between two assembly clamping brackets 5, with its two ends located inside the two assembly clamping slots respectively. The clamping top block 7 abuts against the connecting base plate 9 via an anti-slip pad 8. The connecting support seat 10 is disposed between the connecting base plate 9 and the electric actuator 2, with its two ends fixedly connected to the connecting base plate 9 and the electric actuator 2 respectively. There are two sets of connecting screws 11, each set consisting of two sets of screws arranged side by side at intervals. The two sets of connecting screws 11 are symmetrically arranged on both sides of the connection between the connecting support seat 10 and the connecting base plate 9, and penetrate through the connecting support seat 10 and the connecting base plate 9. The connecting screws 11 are threadedly connected to the connecting support seat 10 and the connecting base plate 9. The two sets of mounting mechanisms and the connecting mechanism together constitute a combined quick-assembly structure. The electric actuator 2 is assembled onto the valve body 1 through the combined quick-assembly structure. The connecting mechanism, through the cooperation of the connecting base plate 9, the connecting support seat 10, and the connecting screws 11, serves as a combined connecting structure between the valve body 1 and the electric actuator 2 to realize the connection between the electric actuator 2 and the valve body 1. The system allows for quick assembly and disassembly. The connecting base plate 9 provides mounting support for the connecting support seat 10, enabling rapid assembly of the connecting support seat 10 between two mounting mechanisms. The connecting support seat 10 serves as the bottom connection structure of the electric actuator 2, forming a detachable modular connection structure with the connecting base plate 9. This satisfies the disassembly and maintenance needs of the valve body 1 or the electric actuator 2. The connecting screw 11 connects the connecting support seat 10 to the connecting base plate 9. When the electric actuator 2 needs to be assembled onto the valve body 1, the connecting base plate 9 and the connecting support seat 10 are pre-connected and fixed using the connecting screw 11. Then, the connecting base plate 9 is placed inside the clamping slots of the two clamping brackets 5. The clamping screw 6 is rotated to lower the clamping top block 7, thereby clamping and fixing the connecting base plate 9 using the anti-slip pad 8 and the clamping brackets 5. Finally, the output end of the electric actuator 2 is connected to the valve stem of the valve body 1, completing the assembly connection between the electric actuator 2 and the valve body 1. A schematic diagram of the connection support seat 10 and the electric actuator 2 is shown below. Figure 3 As shown.

[0028] The connecting support 10 is configured as a box-shaped base structure, and its upper and lower ends are respectively provided with connecting through holes corresponding to the electric actuator 2 and the valve body 1. The middle part of the connecting base plate 9 is provided with a mounting through hole corresponding to the connecting through hole. The connecting support 10 is detachably connected to the connecting base plate 9 by connecting screws 11. The box-shaped base structure of the connecting support 10 is used to ensure the overall stability of the connecting structure while meeting the installation requirements of the limiting mechanism. The connecting through hole and the mounting through hole are used to meet the connection requirements between the electric actuator 2 and the valve body 1.

[0029] The limiting mechanism includes a limiting bracket 12 and a limiting ring 13. The limiting bracket 12 is disposed inside the connecting support 10 and is fixedly connected to the connecting support 10. The limiting ring 13 is disposed inside the limiting bracket 12 and is fixedly connected to the limiting bracket 12. The limiting ring 13 is coaxially arranged with the connecting through hole. The limiting mechanism, through the cooperation of the limiting bracket 12 and the limiting ring 13, limits the connection between the electric actuator 2 and the valve body 1, thereby preventing the valve stem of the valve body 1 from deviating or shaking during operation. The limiting bracket 12 is used to provide mounting support for the limiting ring 13 so that the limiting ring 13 is installed inside the connecting support 10. The limiting ring 13 is used as a limiting structure inside the connecting support 10 to limit the connection between the electric actuator 2 and the valve body 1.

[0030] The valve body 1 has flanges at both ends. The valve body 1 is assembled into the pipeline system through the flanges. The valve stem of the valve body 1 passes through the mounting through hole and the connecting through hole through the connecting base plate 9 and the connecting support seat 10. The output end of the electric actuator 2 is located inside the limit ring 13 and is connected to the valve stem of the valve body 1. The flange is used as the mounting structure at the end of the valve body 1 to meet the installation requirements of the valve body 1.

[0031] The electric actuator 2 and the valve body 1 can be implemented using existing actuator equipment and valve structures.

[0032] Working principle:

[0033] During assembly, the valve body 1 is installed in the pipeline system via a flange. The mounting clamp 3, equipped with the clamping assembly, is stably installed on the valve body 1 using mounting screws 4. The connecting base plate 9 is pre-connected to the connecting support seat 10 using connecting screws 11. Then, the connecting base plate 9 is placed inside the clamping slots of the two mounting clamping brackets 5. The clamping screw 6 is rotated to lower the clamping top block 7, and the connecting base plate 9 is clamped and fixed by the anti-slip pad 8 and the clamping brackets 5. The output end of the electric actuator 2 is connected to the valve stem of the valve body 1 and located inside the limiting ring 13, thus completing the assembly connection between the electric actuator 2 and the valve body 1. When the electric actuator 2 needs to be disassembled for maintenance, the clamping screw 6 can be rotated to raise the clamping top block 7, allowing the connecting mechanism and the electric actuator 2 to be disassembled from the valve body 1 for maintenance operations.

[0034] The beneficial effects of this utility model are that it has an installation mechanism and a connection mechanism that work together to achieve quick assembly and disassembly between the electric actuator and the valve body. No manual pre-fixing is required during installation, which effectively reduces the difficulty of installation, debugging and maintenance. It has strong installation stability. The installation mechanism is not limited by the valve type and can meet the installation requirements of various types of valve bodies. It is equipped with a limit mechanism to limit the valve body and valve stem, so as to prevent the valve stem from deviating or shaking during operation, which could cause damage to the valve body or electric actuator.

[0035] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A structure for a miniature valve electric actuator, comprising a valve body (1) and an electric actuator (2), wherein the electric actuator (2) is disposed at the upper end of the valve body (1), characterized in that, It also includes an installation mechanism for forming a quick-release installation structure, a connection mechanism for forming a combined connection structure, and a limiting mechanism for limiting the valve stem. The installation mechanism is arranged on the side of the valve body (1), the connection mechanism is assembled between the installation mechanism and the electric actuator (2), and the limiting mechanism is arranged inside the connection mechanism.

2. The structure of the miniature valve electric actuator (2) as described in claim 1, characterized in that, The mounting mechanism includes a mounting clamp (3), a mounting screw (4), and a clamping assembly. The mounting clamp (3) is located on one side of the valve body (1) and is fastened to the valve body (1). The mounting screw (4) is located at the open end of the mounting clamp (3) and is fixedly connected to the mounting clamp (3) by a nut. The mounting clamp (3) is fixedly assembled on the side of the valve body (1) by the mounting screw (4). The clamping assembly is located at the end of the mounting clamp (3) away from the mounting screw (4).

3. The structure of the miniature valve electric actuator (2) as described in claim 2, characterized in that, The clamping assembly includes a clamping bracket (5), a clamping screw (6), and a clamping top block (7). The clamping bracket (5) is located at the end of the mounting clamp (3) away from the mounting screw (4) and is fixedly connected to the mounting clamp (3). The side of the clamping bracket (5) away from the mounting clamp (3) is provided with a clamping groove. The clamping screw (6) is located at the end of the clamping bracket (5) away from the mounting clamp (3) corresponding to the clamping groove and is threadedly connected to the clamping bracket (5). One end of the clamping screw (6) passes through the clamping bracket (5) and is located in the clamping groove. The clamping top block (7) is located at the end of the clamping screw (6) located in the clamping groove and is rotatably connected to the clamping screw (6).

4. The structure of the miniature valve electric actuator (2) as described in claim 3, characterized in that, It also includes an anti-slip pad (8), which is disposed on the side of the clamping top block (7) away from the clamping screw (6) and is fixedly connected to the clamping top block (7).

5. The structure of a miniature valve electric actuator (2) as described in claim 4, characterized in that, The installation mechanism is provided in two sets, which are symmetrically arranged on both sides of the valve body (1) and the two sets of clamping assemblies are arranged opposite each other.

6. The structure of the miniature valve electric actuator (2) as described in claim 5, characterized in that, The connecting mechanism includes a connecting base plate (9), a connecting support base (10), and connecting screws (11). The connecting base plate (9) is disposed between two sets of clamping brackets (5) and its two ends are respectively located inside the two clamping slots. The clamping top block (7) abuts against the connecting base plate (9) through the anti-slip pad (8). The connecting support base (10) is disposed between the connecting base plate (9) and the electric actuator (2) and its two ends are respectively fixedly connected to the connecting base plate (9) and the electric actuator (2). There are two sets of connecting screws (11). Each set of connecting screws (11) consists of two sets of screws arranged side by side at intervals. The two sets of connecting screws (11) are symmetrically arranged on both sides of the connection between the connecting support base (10) and the connecting base plate (9) and penetrate the connecting support base (10) and the connecting base plate (9). The connecting screws (11) are threadedly connected to the connecting support base (10) and the connecting base plate (9).

7. The structure of a miniature valve electric actuator (2) as described in claim 6, characterized in that, The connecting support base (10) is configured as a box-shaped base structure and its upper and lower ends are respectively provided with connecting through holes corresponding to the electric actuator (2) and the valve body (1). The middle part of the connecting base plate (9) is provided with an installation through hole corresponding to the connecting through hole. The connecting support base (10) is detachably connected to the connecting base plate (9) by the connecting screw (11).

8. The structure of a miniature valve electric actuator (2) as described in claim 7, characterized in that, The two sets of installation mechanisms and connection mechanisms together constitute a combined quick-installation structure, and the electric actuator (2) is assembled on the valve body (1) through the combined quick-installation structure.

9. The structure of a miniature valve electric actuator (2) as described in claim 8, characterized in that, The limiting mechanism includes a limiting bracket (12) and a limiting ring (13). The limiting bracket (12) is disposed inside the connecting support (10) and is fixedly connected to the connecting support (10). The limiting ring (13) is disposed inside the limiting bracket (12) and is fixedly connected to the limiting bracket (12). The limiting ring (13) is coaxially arranged with the connecting through hole.

10. The structure of a miniature valve electric actuator (2) as described in claim 9, characterized in that, The valve body (1) is provided with flanges at both ends. The valve body (1) is assembled in the pipeline system through the flanges. The valve stem of the valve body (1) passes through the connecting base plate (9) and the connecting support seat (10) through the mounting through hole and the connecting through hole. The output end of the electric actuator (2) is located inside the limiting ring (13) and is connected to the valve stem of the valve body (1) in a transmission manner.

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