Control valve actuator

Abstract

The utility model relates to the technical field of valve actuators, and provides a control valve actuator which comprises a valve body, a connecting section, a fixing plate, an actuator body, a connecting shaft and a locking assembly, and the connecting section is connected to the valve body and communicates with the valve body; the fixing plate is connected to the connecting section, and the actuator body is connected with the fixing plate through the connecting shaft. The connecting shaft is vertically arranged, and the two ends of the connecting shaft are connected to the actuator body and the fixing plate correspondingly. The locking assembly is arranged at the connecting position of the connecting shaft and the fixing plate and used for locking the connecting shaft to the fixing plate. The connecting structure has the effect of improving the connecting stability between the actuator and the valve.

Description

Technical Field

[0001] The present application relates to the technical field of valve actuators, and in particular to a control valve actuator. Background Art

[0002] The Smart Energy Valve Actuator integrates opening control, temperature control, temperature differential control, pressure control, pressure differential control, and flow control. It comes with two temperature sensors and two pressure sensors for temperature- and pressure differential-based control functions.

[0003] The actuator can be connected to a flow sensor with a 4-20mA output signal to implement flow control. The actuator ultimately calculates and controls the valve opening based on actual sensor data and the actual demand value set in advance, thereby achieving stable cooling and heating output control for the water system.

[0004] The actuator's operating logic is based on the PID control algorithm, which allows for automatic control (temperature, temperature differential, pressure, pressure differential, and flow), with the ability to limit the actuator's maximum and minimum openings. The actuator moves at intervals until the valve opening stabilizes at the desired preset value. The intervals and operating distances can be remotely adjusted via RS485. To ensure valve stability and safety, preset settings can be configured via the Modbus protocol. In the event of a valve malfunction (temperature sensor failure in temperature control mode, or pressure sensor failure in pressure control mode), the actuator automatically controls the valve to the specified opening.

[0005] Regarding the above-mentioned related technologies, the connection stability between the existing actuator and the valve is insufficient and needs to be improved. Utility Model Content

[0006] In order to improve the connection stability between the actuator and the valve, the present application provides a control valve actuator.

[0007] The control valve actuator provided in this application adopts the following technical solution:

[0008] A control valve actuator comprises a valve body, a connecting section, a fixed plate, an actuator body, a connecting shaft and a locking assembly, wherein the connecting section is connected to the valve body and is in communication with the valve body; the fixed plate is connected to the connecting section, and the actuator body is connected to the fixed plate via the connecting shaft; the connecting shaft is vertically arranged, and its two ends are respectively connected to the actuator body and the fixed plate; the locking assembly is arranged at the connection position between the connecting shaft and the fixed plate, and the locking assembly is used to lock the connecting shaft to the fixed plate.

[0009] By adopting this technical solution, the connecting shaft secures the actuator body to the fixed plate. The connecting section connects the actuator body to the valve body to control the valve opening. Furthermore, the locking assembly strengthens the connection between the connecting shaft and the fixed plate, further enhancing the stability of the entire mounting structure.

[0010] Preferably, a plurality of connecting shafts are arranged in parallel, and the locking assembly is locked on each of the connecting shafts at the same time.

[0011] By adopting the above technical solution, each connecting shaft is used to connect the actuator body and the fixed plate. Under the multi-point connection effect, the stability of the actuator body after installation is improved.

[0012] Preferably, the locking assembly includes a first mounting block, a second mounting block and a fastener, and a limiting groove is provided on the first mounting block and the second mounting block. When the first mounting block and the second mounting block abut against each other, the connecting shaft is located in the limiting groove, and the fastener is used to lock the first mounting block and the second mounting block.

[0013] By adopting the above technical solution, when locking, the positions of the first mounting block and the second mounting block are aligned so that the first mounting block and the second mounting block are simultaneously abutted against each connecting shaft and the fixed plate, and then the first mounting block and the second mounting block are locked using fasteners.

[0014] Preferably, it also includes a support block and a support column, the support block is arranged on the fixed plate, the support column is arranged vertically, and is used to support the actuator body; one end of the support column is hollow and is sleeved on the support block, and the other end of the support column is elastically telescopic and abuts against the actuator body.

[0015] By adopting the above technical solution, during installation, one end of the support column is first placed on the support block. At the same time, external force is applied to the telescopic end of the support column to compress it, and then the support column is adjusted vertically. Finally, the force on the telescopic end is removed. Under the elastic force, the telescopic end of the support column can exert pressure on the actuator body, further improving the firmness of the actuator body after installation.

[0016] Preferably, it further comprises a fixing plate and a fixing bolt, wherein the fixing plates are symmetrically arranged at the connection position between the support column and the actuator body, and the fixing bolt is used to lock the two fixing plates.

[0017] By adopting the above technical solution, the two fixing plates are pressed tightly at the connection position between the support column and the actuator body, which can improve the connection stability of the support column and the actuator body and make the relative position of the two less likely to shift.

[0018] Preferably, a transmission shaft is rotatably connected inside the actuator body, and the transmission shaft is used to adjust the stroke of the valve body. A hexagonal hole is provided at one end of the transmission shaft away from the valve body; a waterproof joint is also provided on the actuator body, and the waterproof joint is blocked on the hexagonal hole of the transmission shaft.

[0019] By adopting this technical solution, the waterproof connector can shield and protect the drive shaft, reducing the ingress of water and dust. To manually adjust the valve body's stroke, first disconnect the actuator's power supply, unscrew the waterproof connector, remove the wrench, and align the wrench with the hexagonal hole. Press the hexagonal wrench downward firmly and turn it. Turning it counterclockwise moves the actuator's drive shaft upward, while turning it clockwise moves it downward, achieving manual adjustment.

[0020] Preferably, the waterproof joint includes a joint body and a connecting strip, one end of the connecting strip is rotatably connected to the actuator body, and the other end is connected to the joint body.

[0021] By adopting the above technical solution, the connector body can be clamped or plugged into the end of the hexagonal hole of the transmission shaft. The presence of the connecting strip can facilitate the movement of the connector body and change the relative position of the connector body and the actuator body.

[0022] Preferably, a control panel is provided on the actuator body, and the control panel is used for an operator to operate.

[0023] By adopting the above technical solution, the operator can give instructions to the actuator body through the control panel, thereby improving the convenience of use.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] (1) By setting a fixing plate, a connecting shaft and a locking assembly, the actuator body is fixed on the fixing plate under the connecting action of the connecting shaft, and the actuator body is connected to the valve body through the connecting section; at the same time, under the action of the locking assembly, the locking assembly improves the connection firmness between the connecting shaft and the fixing plate, making the stability of the entire installation structure stronger.

[0026] (2) By setting the support block and the support column, the support column can exert a pressure on the actuator body, further improving the firmness of the actuator body after installation.

[0027] (3) By setting up the transmission shaft and waterproof joint, the operator can use a wrench to rotate the transmission shaft to manually adjust the stroke of the valve body; as for the waterproof joint, it can play a role in isolating and protecting the transmission shaft to achieve waterproof and dustproof. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of the valve body in an embodiment of the present application;

[0029] Figure 2 This is a schematic structural diagram of the locking assembly and the connecting shaft explosion in an embodiment of the present application;

[0030] Figure 3 It is a structural diagram of the actuator body in an embodiment of the present application;

[0031] Figure 4 This is a schematic diagram of the structure of the actuator body in an embodiment of the present application in which the waterproof joint is omitted.

[0032] Figure markings: 1. Valve body; 2. Connecting section; 3. Fixed plate; 4. Actuator body; 5. Connecting shaft; 6. Locking assembly; 61. First mounting block; 62. Second mounting block; 63. Fastener; 7. Support block; 8. Support column; 9. Fixed plate; 10. Control panel; 11. Drive shaft; 12. Waterproof joint; 121. Joint body; 122. Connecting strip. DETAILED DESCRIPTION

[0033] The following will describe the technical solution of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. The present application can be embodied in many different forms and is not limited to the embodiments described here.

[0034] Throughout the present application, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0036] In the description of the embodiments of this application, unless otherwise specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, integration, or mechanical connections. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this application based on specific circumstances.

[0037] Some embodiments of the present application are described in detail below with reference to the accompanying drawings. In the absence of conflict, those skilled in the art may combine and combine the different embodiments or examples and features of the different embodiments or examples shown in the present application.

[0038] The embodiment of the present application discloses a control valve actuator. Figure 1 The control valve actuator includes a valve body 1, a connecting section 2, a fixed plate 3, an actuator body 4, a connecting shaft 5 and a locking assembly 6. The valve body 1 is opened at both ends, and the connecting section 2 is fixedly connected to the valve body 1 and is connected to the valve body 1. The fixed plate 3 is fixedly connected to the connecting section 2, and the actuator body 4 is connected to the fixed plate 3 through the connecting shaft 5. The connecting shaft 5 is vertically arranged, and its two ends are respectively connected to the actuator body 4 and the fixed plate 3. Among them, there are several connecting shafts 5 arranged in parallel, and the number of connecting shafts 5 in this embodiment is two. Under the connecting action of the connecting shaft 5, the actuator body 4 is fixed on the fixed plate 3, and the actuator body 4 is connected to the valve body 1 through the connecting section 2 to control the opening of the valve body 1.

[0039] Combine Figure 2 The locking assembly 6 is installed at the connection between the connecting shaft 5 and the fixed plate 3. The locking assembly 6 is used to lock each connecting shaft 5 to the fixed plate 3. The locking assembly 6 improves the connection between the connecting shaft 5 and the fixed plate 3, making the entire installation structure more stable. Specifically, the locking assembly 6 includes a first mounting block 61, a second mounting block 62, and a fastener 63. The first mounting block 61 and the second mounting block 62 each have a limit slot, which is used to make room for the connecting shaft 5. When the first mounting block 61 and the second mounting block 62 abut each other, the connecting shaft 5 is located within the limit slot. The fastener 63 is used to lock the first mounting block 61 and the second mounting block 62 together. The fastener 63 is a detachable object such as a fastening bolt or a fastening stud. When locking, the first mounting block 61 and the second mounting block 62 are aligned so that they abut each connecting shaft 5 and the fixed plate 3 at the same time, and then the first mounting block 61 and the second mounting block 62 are locked together using the fastener 63.

[0040] According to some embodiments of the present application, optionally, please refer to Figure 2. A support block 7 and a support column 8 are also installed on the fixed plate 3. The support block 7 is fixedly connected to the fixed plate 3. The support column 8 is arranged in the vertical direction and is parallel to the connecting axis 5. The support column 8 is used to support the actuator body 4. One end of the support column 8 is hollow and is sleeved on the support block 7; the other end of the support column 8 is elastically retractable by a spring, and the retractable end of the support column 8 abuts against the actuator body 4. Among them, fixed plates 9 are also symmetrically installed at the connection position between the support column 8 and the actuator body 4. The two fixed plates 9 are used to clamp at the connection between the support column 8 and the actuator body 4 to improve the connection stability between the support column 8 and the actuator body 4. In this embodiment, the two fixed plates 9 are locked together by fixing bolts.

[0041] During installation, one end of the support column 8 is first placed over the support block 7. At the same time, external force is applied to the telescopic end of the support column 8 to compress it, and then the support column 8 is adjusted vertically. Finally, the force on the telescopic end is removed. Under the elastic force, the telescopic end of the support column 8 can exert pressure on the actuator body 4, thereby further improving the firmness of the actuator body 4 after installation.

[0042] Combine Figure 3 and Figure 4 In addition, the actuator body 4 is provided with a control panel 10, which allows the operator to control the actuator body 4 and issue corresponding control commands, improving ease of use. A drive shaft 11 is rotatably connected to the actuator body 4, which is used to adjust the stroke of the valve body 1. The end of the drive shaft 11 away from the valve body 1 has a hexagonal hole for inserting a wrench.

[0043] A waterproof connector 12 is also mounted on the actuator body 4. This connector covers the hexagonal hole in the drive shaft 11, providing protection and reducing the ingress of dust and water. This connector 12 comprises a connector body 121 and a connecting bar 122. One end of the connecting bar 122 is rotatably connected to the actuator body 4, while the other end is connected to the connector body 121, which is fastened to the end of the drive shaft 11.

[0044] When it is necessary to manually adjust the stroke of the valve body 1, the power supply of the actuator body 4 can be disconnected first, and the waterproof connector 12 can be unscrewed. Then, the wrench can be removed and the wrench can be aligned with the hexagonal hole. The hexagonal wrench can be pressed down and turned. Counterclockwise rotation can control the transmission shaft 11 of the actuator body 4 to transmit upward, and clockwise rotation can control the transmission shaft 11 of the actuator body 4 to transmit downward, thereby realizing manual adjustment.

[0045] The control valve actuator of the present embodiment operates as follows: A connecting shaft 5 secures the actuator body 4 to the fixed plate 3. The actuator body 4 is connected to the valve body 1 via the connecting section 2 to control the opening of the valve body 1. A locking assembly 6 strengthens the connection between the connecting shaft 5 and the fixed plate 3, while a support column 8 exerts pressure on the actuator body 4, further enhancing the stability of the entire mounting structure.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A control valve actuator, characterized in that: The invention comprises a valve body (1), a connecting section (2), a fixing plate (3), an actuator body (4), a connecting shaft (5) and a locking assembly (6), wherein the connecting section (2) is connected to the valve body (1) and is arranged in communication with the valve body (1); the fixing plate (3) is connected to the connecting section (2), and the actuator body (4) is connected to the fixing plate (3) via the connecting shaft (5); the connecting shaft (5) is arranged vertically, and its two ends are respectively connected to the actuator body (4) and the fixing plate (3); the locking assembly (6) is arranged at the connecting position of the connecting shaft (5) and the fixing plate (3), and the locking assembly (6) is used to lock the connecting shaft (5) to the fixing plate (3).

2. A control valve actuator according to claim 1, characterized in that: A plurality of connecting shafts (5) are arranged in parallel, and the locking assembly (6) is locked onto each of the connecting shafts (5) at the same time.

3. A control valve actuator according to claim 2, characterized in that: The locking assembly (6) comprises a first mounting block (61), a second mounting block (62) and a fastener (63). The first mounting block (61) and the second mounting block (62) are both provided with a limiting groove. When the first mounting block (61) and the second mounting block (62) abut against each other, the connecting shaft (5) is located in the limiting groove. The fastener (63) is used to lock the first mounting block (61) and the second mounting block (62).

4. A control valve actuator according to claim 1, characterized in that: It also includes a support block (7) and a support column (8), wherein the support block (7) is arranged on the fixed plate (3), and the support column (8) is arranged vertically and is used to support the actuator body (4); one end of the support column (8) is hollow and sleeved on the support block (7), and the other end of the support column (8) is telescopically arranged and abuts against the actuator body (4).

5. A control valve actuator according to claim 4, characterized in that: It also includes a fixing plate (9) and a fixing bolt, wherein the fixing plate (9) is symmetrically arranged at the connection position between the support column (8) and the actuator body (4), and the fixing bolt is used to lock the two fixing plates (9).

6. The control valve actuator according to claim 1, characterized in that: A transmission shaft (11) is rotatably connected to the actuator body (4), and the transmission shaft (11) is used to adjust the stroke of the valve body (1). A hexagonal hole is provided at one end of the transmission shaft (11) away from the valve body (1); a waterproof joint (12) is also provided on the actuator body (4), and the waterproof joint (12) is shielded on the hexagonal hole of the transmission shaft (11).

7. A control valve actuator according to claim 6, characterized in that: The waterproof joint (12) comprises a joint body (121) and a connecting strip (122); one end of the connecting strip (122) is rotatably connected to the actuator body (4), and the other end is connected to the joint body (121).

8. The control valve actuator according to claim 1, characterized in that: A control panel (10) is provided on the actuator body (4), and the control panel (10) is used for an operator to perform operations.

Images