A valve actuator housing and valve actuator

Abstract

The utility model belongs to valve actuator technical field discloses a valve actuator shell, including bottom shell, upper shell and flange, the bottom of bottom shell is fixed with the mounting block, the flange is detachably arranged on the mounting block through the connecting portion, the connecting portion is located in the side portion of flange and mounting block, and the flange is equipped with the mounting hole that is adapted to valve connecting post. Also discloses a valve actuator, including above-mentioned valve actuator shell, the bottom shell of shell is assembled with multistage reduction gear set, battery and control device, the input end of multistage reduction gear set is connected with motor, and the output end of multistage reduction gear set is fixed with output shaft, and one end of output shaft is output end, and stretches out bottom shell shell, and the other end is state display end, and the manual drive shaft is fixed on any one gear in multistage reduction gear set, and the manual drive shaft stretches out the upper shell of shell. The utility model is convenient to dismount, saves time and labour, improves dismounting efficiency greatly, and is applicable to installing on the valve and controlling the opening and closure of valve.

Description

Technical Field

[0001] This utility model belongs to the technical field of valve actuators, and relates to a valve actuator housing and a valve actuator. Background Technology

[0002] A valve actuator is the execution unit of a pipeline control system. Installed on the valve in the pipeline, the actuator enables electric control of the valve. The actuator includes a housing and an internal motor reduction mechanism. The motor drives the reduction gear to rotate, thereby controlling the opening and closing of the valve. In existing technology, the bottom of the actuator housing has a threaded hole. During installation, the threaded hole on the actuator housing is aligned with the through hole on the valve connecting rod, and bolts are used to fix the actuator to the valve connecting rod. However, this installation structure has the following disadvantages: the central axis of the threaded hole on the actuator and the through hole on the valve connecting rod are in the vertical direction, requiring bolts to be installed from bottom to top. However, valves are generally 15-20cm above the ground, requiring the operator to bend down to align the bolts with the two holes. This not only requires the operator's face to be close to the ground, which can get their hair dirty, but also is time-consuming and laborious. Furthermore, the limited installation space makes it difficult to place a screwdriver, necessitating repeated adjustments to the direction of force, significantly reducing installation and disassembly efficiency. Utility Model Content

[0003] To address the aforementioned shortcomings in the existing technology, this utility model aims to provide a valve actuator housing and a valve actuator to facilitate disassembly and assembly.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A valve actuator housing includes a bottom shell, an upper shell, and a flange. A mounting block is fixedly provided at the bottom of the bottom shell. The flange is detachably mounted on the mounting block via a connecting part located on the side of the flange and the mounting block. The flange is provided with a mounting hole adapted to a valve connecting column.

[0006] As a limitation of this utility model, the connecting part includes an internal threaded hole on the side of the flange and a through hole on the side of the mounting block, and the bolt passes through the through hole on the mounting block and is threadedly connected to the internal threaded hole of the flange.

[0007] As a further limitation of this utility model, four mounting blocks are provided, which are located at the four corners of the bottom shell respectively, and four internal threaded holes are provided on the flange, which correspond to the four through holes on the mounting blocks respectively.

[0008] As another limitation of this utility model, the upper shell is provided with a groove, and the upper shell and the bottom shell are provided with wire grooves communicating with the groove at corresponding positions, and the groove is fixedly provided with a wiring terminal.

[0009] As a limitation of this utility model, the bottom shell is provided with a power aviation socket, a flow sensor aviation socket, a pressure sensor aviation socket and a communication aviation socket.

[0010] A valve actuator includes a valve actuator housing as described above. A multi-stage reduction gear set, a battery, and a control device are assembled inside the bottom shell of the housing. A motor is connected to the input end of the multi-stage reduction gear set, and an output shaft is fixedly provided at the output end of the multi-stage reduction gear set. One end of the output shaft is the output end and extends out of the bottom shell, while the other end is a status display end. A manual drive shaft is fixedly provided on any one of the gears in the middle of the multi-stage reduction gear set and extends out of the upper shell of the housing.

[0011] As a limitation of valve actuator, a solar photovoltaic panel is fixedly mounted on the upper shell, the power cord of the solar photovoltaic panel is fixedly connected to the terminal block, and a power aviation plug is fixedly mounted on the terminal block, which is plugged into a power aviation socket.

[0012] As a further definition of a valve actuator, the multi-stage reduction gear set is a nine-stage transmission, with the manual drive shaft mounted on the fifth-stage transmission gear.

[0013] As another feature of the valve actuator, the output shaft is fixedly provided with a status indicator shaft extending out of the housing, the status indicator shaft is provided with an arrow, and the housing is provided with a detachable sealing cover made of transparent material.

[0014] As a limitation of the valve actuator, an oil seal is fixedly installed on the manual drive shaft at a position passing through the upper housing. Due to the adoption of the above technical solution, the beneficial effects achieved by this utility model compared with the prior art are:

[0015] (1) This utility model uses a flange to change the connection method between the outer shell and the valve connecting column from the top and bottom to the side installation, which saves the operator the trouble of lying on the ground to align the installation hole. The side installation not only increases the installation field of vision, but also increases the installation space, and can realize the quick alignment of the installation hole, saving time and effort and greatly improving work efficiency.

[0016] (2) The groove of the upper shell of this utility model is used to fix the wiring terminal. The wire of the solar photovoltaic panel is fixedly connected to the wiring terminal. The power aviation plug is led out from the wiring terminal and connected to the power aviation socket. It has good waterproof effect and can enable the solar photovoltaic panel to safely power the battery in the actuator. The power aviation socket can also be connected to the municipal power supply. With two power supply methods, it is safer and more convenient to use.

[0017] (3) The present invention is equipped with a manual drive shaft on the multi-stage reduction gear set. When the motor fails, the valve can be manually controlled to open and close, providing double protection and ensuring the accurate delivery of the medium in the pipeline.

[0018] (4) This utility model uses the structure of an aviation plug to connect the flow sensor and the pressure sensor, which has good waterproof effect, is durable and has a low failure rate;

[0019] (5) The present invention is equipped with a communication aviation socket, which can add additional uses. It can output control signals and collect external signals. By plugging the power cord of another actuator into this socket, the signals of the two actuators can be interconnected. It can also enable the active actuator to charge the passive actuator, providing users with more options.

[0020] (6) The manual drive shaft of this utility model is set on the five-stage transmission gear, which can reduce the number of rotations as much as possible while saving effort, and is highly practical.

[0021] In summary, this utility model is easy to assemble and disassemble, saves time and effort, greatly improves assembly and disassembly efficiency, and is suitable for installation on valves to control the opening and closing of valves. Attached Figure Description

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

[0023] Figure 1 This is a three-dimensional structural diagram of the first state of Embodiment 1 of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the second state of Embodiment 1 of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the flange in Embodiment 1 of this utility model;

[0026] Figure 4 This is a three-dimensional schematic diagram of Embodiment 2 of the present invention;

[0027] Figure 5 This is a three-dimensional schematic diagram of the multi-stage reduction gear set in Embodiment 2 of this utility model;

[0028] Figure 6 This is a schematic diagram of the internal structure of Embodiment 2 of this utility model.

[0029] In the diagram: 1. Bottom shell; 2. Top shell; 3. Flange; 31. Round hole; 32. Mounting hole; 33. Internal threaded hole; 4. Mounting block; 41. Through hole; 5. Groove; 6. Cable tray; 7. Power aviation socket; 8. Flow sensor aviation socket; 9. Pressure sensor aviation socket; 10. Communication aviation socket; 11. Multi-stage reduction gear set; 12. Motor; 13. Output shaft; 14. Manual drive shaft; 141. Hexagonal recess; 15. Status indicator shaft; 16. Solar photovoltaic panel; 17. Battery; 18. Sealing cover. Detailed Implementation

[0030] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0031] Example 1: A valve actuator housing

[0032] like Figures 1-3 As shown, this embodiment includes a bottom shell 1, an upper shell 2, and a flange 3. The upper shell 2 is detachably mounted on the bottom shell 1 by bolts. During installation, the flange 3 is first connected to the valve's connecting column, and then the bottom shell 1 is detachably connected to the flange 3. By setting the flange 3, the bottom-up installation method is changed to a side-mounted method, which not only increases the field of vision but also increases the installation space, greatly improving the convenience of disassembly and assembly.

[0033] A mounting block 4 is fixedly installed at the bottom of the base shell 1. The mounting block 4 and the flange 3 are detachably connected from the side via a connecting part. There are four mounting blocks 4, located at the four corners of the base shell 1. Notches are provided at the four corners of the flange 3, forming a cross shape, allowing the flange 3 to be locked between the four mounting blocks 4. The flange 3 has a through circular hole 31 in the center, and four mounting holes 32 are evenly spaced around the circumference of the circular hole 31. The mounting holes 32 are countersunk holes, which are adapted to the through holes 41 of the connecting column on the valve. The flange 3 is installed on the connecting column using countersunk screws.

[0034] The connecting part includes an internal threaded hole 33 on the side of the flange 3 and a through hole 41 on the side of the mounting block 4. There are four internal threaded holes 33 on the flange 3, which are located at the four notches of the flange 3 and correspond to the four through holes 41 on the mounting block 4. When connecting, the bolt is threaded onto the internal threaded hole 33 of the flange 3 after passing through the through hole 41 on the mounting block 4. Since both the internal threaded hole 33 and the through hole 41 are located on the side, the field of vision is wide and the space is large during installation, making disassembly and assembly more convenient.

[0035] The upper shell 2 has a groove 5 near its corner. Correspondingly, the upper shell 2 and the bottom shell 1 have wire grooves 6 communicating with the grooves 5. Wiring terminals are glued and fixed inside the grooves 5. The wire grooves 6 on the upper shell 2 and the bottom shell 1 are used for wiring. The bottom shell 1 has a power aviation socket 7, a flow sensor aviation socket 8, a pressure sensor aviation socket 9, and a communication aviation socket 10. The power aviation socket 7 is used to power internal electrical devices. The flow sensor aviation socket 8 is used to connect a flow sensor, the pressure sensor aviation socket 9 is used to connect a pressure sensor, and the communication aviation socket 10 is used to connect a 485 signal line. Different signal transmission structures can be selected according to site requirements. It can output control signals, such as connecting to Bluetooth to connect to maintenance equipment for maintenance, debugging, or upgrades. It can also collect external signals, such as connecting to a driven actuator to collect control signals from the driven actuator.

[0036] Example 2: A valve actuator

[0037] like Figure 4-6 As shown, this embodiment includes a valve actuator housing as described in Embodiment 1. The bottom shell 1 of the housing is equipped with a multi-stage reduction gear set 11, a battery 17, and a control device. The input end of the multi-stage reduction gear set 11 is connected to a motor 12, and the output end of the multi-stage reduction gear set 11 is fixedly provided with an output shaft 13. One end of the output shaft 13 is the output end, extending out of the housing, and the other end is a status display end. A status indicator shaft 15 extending out of the housing is fixedly provided on the status display end, and an arrow is provided on the status indicator shaft 15. A transparent sealing cover 18 is detachably provided on the housing, with the words "open" and "closed" written on it, set at a 90-degree angle to indicate the current opening or closing of the valve. A manual drive shaft 14 is fixedly provided on any one of the gears in the multi-stage reduction gear set 11. The installation structure of the multi-stage reduction gear set 11 and the bottom shell 1 is existing technology and will not be described in detail. In this embodiment, the multi-stage reduction gear set 11 has nine stages of transmission, with the manual drive shaft 14 located on the fifth stage transmission gear. The manual drive shaft 14 extends out of the upper shell 2 of the outer casing. An oil seal is fixed on the manual drive shaft 14 at the position where it passes through the upper shell 2 for sealing and waterproofing. An internal hexagonal groove 141 is provided on the end face of the manual drive shaft 14 extending out of the upper shell 2 for connecting the crank handle. When the motor 12 malfunctions or there is an unexpected power outage, the motor 12 cannot drive the multi-stage reduction gear set 11 to rotate and open or close the valve. At this time, the crank handle is connected to the manual drive shaft 14, and the multi-stage reduction gear set 11 is manually driven to rotate, controlling the opening and closing of the valve.

[0038] A master control switch is fixed on the bottom shell 1. The master control switch is used to cut off the main power supply and put the entire actuator in the off state. A magnetic switch is also fixed on the bottom shell 1. The signal output terminal of the magnetic switch is connected to the signal input terminal of the control device. It is used to enable the control device to send a signal to the motor 12 to control the forward rotation, reverse rotation or stop of the motor 12. The magnetic switch has good waterproof effect, low failure rate and is durable.

[0039] A solar photovoltaic panel 16 is fixedly mounted on the upper shell 2. The shape of the solar photovoltaic panel 16 matches the shape of the upper shell 2, and the solar photovoltaic panel 16 has holes for the extension of the status indicator shaft 15 and for the extension of the manual drive shaft 14. The power cord of the solar photovoltaic panel 16 is fixedly connected to the terminal block, and a power aviation plug is fixedly mounted on the terminal block. The power aviation plug is plugged into the power aviation socket 7, so that the solar photovoltaic panel 16 charges the battery 17 in the actuator. The power aviation plug can also be connected to municipal power to power the battery 17.

[0040] A magnetic angle sensor is fixed on the output shaft 13. The signal output end of the magnetic angle sensor is connected to the control device. The control device sends a signal to the PC or mobile terminal. By detecting the angle through which the output shaft 13 has rotated, the opening and closing of the valve is identified, and the signal is transmitted to the PC or mobile terminal to display the current status of the valve.

[0041] In this embodiment, the flange 3 is fixed to the valve's connecting column using bolts and nuts. Since the mounting hole 32 on the flange 3 is a countersunk hole, the surface where the flange 3 connects to the bottom shell 1 is flat. Then, the four mounting blocks 4 on the actuator housing are snapped onto the four corners of the flange 3. After the bolts are passed through the through holes 41 on the mounting blocks 4, they are threaded into the internal threaded holes 33 of the flange 3, thus connecting the actuator to the valve.

[0042] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A valve actuator housing, characterized in that: It includes a bottom shell, an upper shell, and a flange. A mounting block is fixed to the bottom of the bottom shell. The flange is detachably mounted on the mounting block via a connecting part. The connecting part is located on the side of the flange and the mounting block. The flange is provided with mounting holes that are compatible with valve connecting columns.

2. The valve actuator housing according to claim 1, characterized in that: The connection part includes an internal threaded hole on the side of the flange and a through hole on the side of the mounting block. The bolt passes through the through hole on the mounting block and is threaded onto the internal threaded hole of the flange.

3. A valve actuator housing according to claim 2, characterized in that: There are four mounting blocks, located at the four corners of the bottom shell. There are four internal threaded holes on the flange, which correspond to the four through holes on the mounting blocks.

4. A valve actuator housing according to any one of claims 1-3, characterized in that: The upper shell is provided with a groove, and the upper shell and the bottom shell are provided with corresponding wire grooves that communicate with the groove. A terminal block is fixed in the groove.

5. A valve actuator housing according to claim 4, characterized in that: The bottom shell is equipped with a power aviation socket, a flow sensor aviation socket, a pressure sensor aviation socket, and a communication aviation socket.

6. A valve actuator, characterized in that: The device includes a valve actuator housing as described in any one of claims 1-5. The bottom shell of the housing is equipped with a multi-stage reduction gear set, a battery, and a control device. The input end of the multi-stage reduction gear set is connected to a motor, and the output end of the multi-stage reduction gear set is fixedly provided with an output shaft. One end of the output shaft is the output end and extends out of the bottom shell, while the other end is a status display end. A manual drive shaft is fixedly provided on any one of the gears in the middle of the multi-stage reduction gear set and extends out of the upper shell of the housing.

7. A valve actuator according to claim 6, characterized in that: A solar photovoltaic panel is fixedly mounted on the upper shell. The power cord of the solar photovoltaic panel is fixedly connected to the terminal block. A power aviation plug is fixedly mounted on the terminal block and plugged into the power aviation socket.

8. A valve actuator according to claim 7, characterized in that: The multi-stage reduction gear set has nine stages of transmission, and the manual drive shaft is set on the fifth stage of transmission gear.

9. A valve actuator according to any one of claims 6-8, characterized in that: The output shaft is fixedly equipped with a status indicator shaft extending out of the housing. The status indicator shaft has an arrow on it, and the housing is detachably equipped with a transparent sealing cover.

10. A valve actuator according to claim 9, characterized in that: An oil seal is fixed on the manual drive shaft at the position where it passes through the upper housing.

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