Intelligent electric actuator for valve

Abstract

The intelligent electric actuator comprises a shell, a circuit board, a driving motor and a transmission mechanism are arranged in the shell, the driving motor is electrically connected to the circuit board, and the output end of the driving motor is connected to the transmission mechanism in a driving mode. A battery compartment for mounting a battery is arranged in the shell, an opening corresponding to the battery compartment is formed in the left side of the upper end of the shell, the battery penetrates through the opening from top to bottom and is mounted in the battery compartment, a detachable battery cover is arranged at the opening in a rotating connection manner, and the battery is electrically connected to the circuit board; a lens is arranged on the right side of the upper end of the shell, a pointer used for indicating opening and closing is arranged in the lens, and the pointer rotates along with the action of the transmission mechanism to indicate opening or closing. Therefore, the design that the battery is inserted from top to bottom can be achieved, the battery can be disassembled, assembled and replaced more easily and conveniently, the actuator does not need to be disassembled from the valve, and other tools do not need to be used either.

Description

Technical Field

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

[0002] Actuators are an essential component of automatic control systems. Their function is to receive control signals from the controller, change the magnitude of the controlled medium, and thus maintain the controlled variable at the required value or within a certain range. Actuators can be classified into three main categories according to their energy source: pneumatic, hydraulic, and electric.

[0003] Electric valve actuators are mechanical devices that use electricity as their primary energy source to drive valves. They move the valve stem up and down to control the opening and closing of the valve's flow path. Due to their ease of use, they are frequently used in pipeline installations. As precision electrical components, they generally require certain explosion-proof and protection levels (waterproof and dustproof). Depending on the applicable working conditions, they are divided into explosion-proof and ordinary types. Based on voltage, in my country, they are mainly divided into AC380V, AC220V, and DC24V. They are also divided into on / off and regulating types based on the actuator's operating mode. Currently, most electric valve actuators on the market require removing the actuator from the valve when changing the battery. Disassembling the actuator requires tools, making the operation complex and time-consuming.

[0004] Therefore, a new technology needs to be developed to solve the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a smart electric actuator for valves that enables the battery to be inserted from top to bottom, making battery removal and replacement easier without removing the actuator from the valve or using other tools.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A smart electric actuator for valves includes a housing, within which a circuit board, a drive motor, and a transmission mechanism are disposed. The drive motor is electrically connected to the circuit board, and the output end of the drive motor is driven and connected to the transmission mechanism.

[0008] The housing has a battery compartment for installing batteries. The upper left side of the housing has an opening corresponding to the battery compartment. The battery is inserted into the battery compartment through the opening from top to bottom. The opening has a rotatable battery cover. The battery is electrically connected to the circuit board.

[0009] A lens is provided on the upper right side of the housing, and a pointer for indicating opening and closing is provided inside the lens. The pointer rotates with the movement of the transmission mechanism to indicate opening or closing.

[0010] As a preferred embodiment, the opening is located at the upper end of the housing and is provided with a first rotating connection portion, and the battery cover has a second rotating connection portion, which is rotatably connected to the first rotating connection portion.

[0011] As a preferred embodiment, the first rotating connection part is an internally threaded part, and the second rotating connection part is an externally threaded part, wherein the externally threaded part and the internally threaded part are threadedly connected.

[0012] As a preferred embodiment, the opening is provided with an annular positioning step at the upper end of the housing, the internal thread is formed on the inner peripheral sidewall of the annular positioning step, the lower end of the battery cover extends downward with an annular insert, the external thread is formed on the outer peripheral sidewall of the annular insert, an annular clearance space is formed between the outer peripheral sidewall of the annular insert and the peripheral sidewall of the battery cover, and the upper end of the annular positioning step is adapted to fit within the annular clearance space.

[0013] As a preferred embodiment, the housing includes an upper housing and a lower housing joined together vertically. The opening is located on the upper left side of the upper housing, and the lens is located on the upper right side of the upper housing. A control button is located on the right side of the lens at the upper end of the upper housing. The control button is electrically connected to a circuit board. The upper housing and the lower housing form a receiving cavity. The battery compartment is located on the left side of the receiving cavity. The circuit board is located on the upper right side of the receiving cavity. The drive motor is located inside the receiving cavity and in front of the battery compartment. The transmission mechanism is located inside the receiving cavity and below the circuit board.

[0014] As a preferred embodiment, the output end of the drive motor is connected to an output gear, the output gear meshes with a first linkage gear set, and the first linkage gear set meshes with a second linkage gear set;

[0015] The transmission mechanism includes a gear ring, a transmission gear and a planetary gear set, wherein the transmission gear meshes with a second linkage gear set;

[0016] The planetary gear set includes a first sun gear, a first planet gear, a first planetary gear carrier, a second sun gear, a second planet gear, a second planetary gear carrier, a third sun gear, a third planet gear, and a third planetary gear carrier, with the transmission gear, the first planetary gear carrier, the second planetary gear carrier, and the third planetary gear carrier arranged sequentially from top to bottom;

[0017] The first sun gear is connected to the lower end of the transmission gear, the first planetary gear is mounted on the upper end of the first planetary gear carrier, and the first planetary gear meshes with the first sun gear and the gear ring respectively;

[0018] The second sun gear is connected to the lower end of the first planetary gear carrier, and the second planetary gear is mounted on the upper end of the second planetary gear carrier. The second planetary gear meshes with the second sun gear and the ring gear, respectively.

[0019] The third sun gear is connected to the lower end of the second planetary gear carrier, and the third planetary gear is mounted on the upper end of the third planetary gear carrier. The third planetary gear meshes with the third sun gear and the ring gear respectively.

[0020] The upper end of the third planetary gear carrier extends upward with a rotating shaft. The upper end of the rotating shaft passes through the third sun gear, the second planetary gear carrier, the second sun gear, the first planetary gear carrier, the first sun gear, and the transmission gear in sequence from bottom to top, and extends out of the upper end of the transmission gear. The lower end of the pointer is connected to the positioning hole at the upper end of the rotating shaft.

[0021] As a preferred embodiment, the first linkage gear set includes a first large linkage gear and a first small linkage gear coaxially assembled together, and the second linkage gear set includes a second large linkage gear and a second small linkage gear coaxially assembled together. The output gear meshes with the first large linkage gear, the first small linkage gear meshes with the second large linkage gear, and the transmission gear meshes with the second small linkage gear.

[0022] As a preferred embodiment, a third linkage gear is provided at the upper end of the transmission gear, and the upper end of the rotating shaft extends out of the upper end of the transmission gear through the third linkage gear. A fourth linkage gear and a fifth linkage gear are rotatably provided on one side of the upper end of the transmission gear on the third linkage gear. The fourth linkage gear meshes with the third linkage gear and the fifth linkage gear respectively. A linkage part is provided at the middle of the upper end of the fifth linkage gear. A rotating part for manual rotation is provided at the upper end of the housing, and the rotating part is connected to the linkage part.

[0023] This utility model has significant advantages and beneficial effects compared with the prior art. Specifically, as can be seen from the above technical solution, it mainly involves setting a battery compartment inside the housing, with an opening on the upper left side of the housing corresponding to the battery compartment, allowing the battery to be inserted into the battery compartment from top to bottom through the opening. A detachable battery cover is provided at the opening, allowing for top-down battery insertion. Simply rotating to open the battery cover allows for easy battery removal and replacement, simplifying battery replacement without removing the actuator from the valve or using other tools. Furthermore, the output of the drive motor... The end drive is connected to the transmission mechanism, enabling automatic opening or closing. By setting a linkage part at the upper middle of the fifth linkage gear and a rotating part for manual rotation at the upper end of the housing, the rotating part is connected to the linkage part. In this way, when there is a power outage or no power, simply manually rotating the rotating part will drive the fifth linkage gear to rotate, which in turn drives the fourth linkage gear and the third linkage gear to rotate the linkage transmission gear, thereby actuating the planetary gear set to achieve manual opening or closing. This integrates manual and automatic opening and closing, solving the problem of not being able to switch on or off when there is a power outage or no power.

[0024] To more clearly illustrate the structural features, technical means, and specific objectives and functions of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this utility model;

[0026] Figure 2 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this utility model from another angle;

[0027] Figure 3 This is an exploded view of an embodiment of the present utility model;

[0028] Figure 4 This is another exploded view of an embodiment of the present utility model;

[0029] Figure 5 This is another exploded view of an embodiment of the present utility model;

[0030] Figure 6 This is a further exploded view of an embodiment of the present utility model;

[0031] Figure 7 This is a partial structural schematic diagram of an embodiment of the present utility model;

[0032] Figure 8 This is a partial structural exploded view of an embodiment of the present utility model;

[0033] Figure 9 This is another partial structural exploded view of an embodiment of the present utility model;

[0034] Figure 10 This is another partial structural exploded view of an embodiment of the present utility model.

[0035] Explanation of reference numerals in the attached diagram:

[0036] 10. Casing 11. Battery compartment

[0037] 12. Opening 13. Internal thread section

[0038] 14. Circular positioning step 15. Lens

[0039] 16. Pointer; 17. Switch indicator block

[0040] 18. Upper shell 19. Lower shell

[0041] 20. Circuit board; 30. Drive motor

[0042] 31. Output gear; 40. Battery

[0043] 50. Battery cover; 51. External threaded part

[0044] 52. Annular Embedded Part 53. Annular Relief Space

[0045] 60. Gear ring; 70. Transmission gear.

[0046] 80. Planetary gear set 81. First sun gear

[0047] 82. First planetary gear 83. First planetary gear carrier

[0048] 84. Second Sun Gear 85. Second Planetary Gear

[0049] 86. Second planetary gear carrier; 87. Third sun gear

[0050] 88. Third planetary gear 89. Third planetary gear carrier

[0051] 810, Shaft; 811, Connecting part

[0052] 812, Positioning hole 90, First large linkage gear

[0053] 101. First small linkage gear; 102. Second large linkage gear

[0054] 103. Second small linkage gear; 104. Third linkage gear

[0055] 105. Fourth linkage gear; 106. Fifth linkage gear

[0056] 1061. Linkage part; 107. Rotating part

[0057] 1071, Rotating hole 108, Control button. Detailed Implementation

[0058] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", and "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0059] Please refer to Figures 1 to 10 As shown, it illustrates the specific structure of the intelligent electric actuator for valves provided in an embodiment of this utility model.

[0060] The intelligent electric actuator for the valve includes a housing 10, within which a circuit board 20, a drive motor 30, and a transmission mechanism are housed. The drive motor 30 is electrically connected to the circuit board 20, and its output is connected to the transmission mechanism. The housing 10 also includes a battery compartment 11 for housing a battery 40. An opening 12 is located on the upper left side of the housing 10 corresponding to the battery compartment 11. The battery 40 is inserted into the battery compartment 11 through the opening 12 from top to bottom. A rotatably connected, detachable battery cover 50 is located at the opening 12. The battery 40 is electrically connected to the circuit board 20. This design allows for the top-to-bottom insertion of the battery 40, simplifying battery removal and replacement without removing the actuator from the valve or using any additional tools.

[0061] The opening 12 is located at the upper end of the housing 10 and has a first rotating connection portion. The battery cover 50 has a second rotating connection portion, which is rotatably connected to the first rotating connection portion. Specifically, in this embodiment, the first rotating connection portion is an internal thread portion 13, and the second rotating connection portion is an external thread portion 51. The external thread portion 51 is threadedly connected to the internal thread portion 13 to realize the threaded connection between the battery cover 50 and the housing 10, thereby facilitating the tightening and unscrewing of the battery cover 50. The opening 12 is located at the upper end of the housing 10 and has an annular positioning step 14. The internal thread portion 13 is formed on the inner peripheral sidewall of the annular positioning step 14. The lower end of the battery cover 50 extends downward to form an annular insert portion 52. The external thread portion 51 is formed on the outer peripheral sidewall of the annular insert portion 52. An annular clearance space 53 is formed between the outer peripheral sidewall of the annular insert portion 52 and the peripheral sidewall of the battery cover 50. The upper end of the annular positioning step 14 is adapted to fit within the annular clearance space 53.

[0062] A lens 15 is provided on the upper right side of the housing 10. A pointer 16 for indicating opening and closing is provided inside the lens 15. The pointer 16 rotates with the action of the transmission mechanism to indicate opening or closing. A switch indicator block 17 is also provided inside the lens 15. The switch indicator block 17 is marked with the words "open" and "closed". The switch indicator block 17 is sleeved on the pointer 16.

[0063] The output end of the drive motor 30 is connected to an output gear 31, which meshes with a first linkage gear set, and the first linkage gear set meshes with a second linkage gear set; the transmission mechanism includes a gear ring 60, a transmission gear 70, and a planetary gear set 80, with the transmission gear 70 meshing with the second linkage gear set.

[0064] The planetary gear set 80 includes a first sun gear 81, a first planetary gear 82, a first planetary gear carrier 83, a second sun gear 84, a second planetary gear 85, a second planetary gear carrier 86, a third sun gear 87, a third planetary gear 88, and a third planetary gear carrier 89, with the transmission gear 70, the first planetary gear carrier 83, the second planetary gear carrier 86, and the third planetary gear carrier 89 arranged sequentially from top to bottom.

[0065] The first sun gear 81 is connected to the lower end of the transmission gear 70, and the first planetary gear 82 is mounted on the upper end of the first planetary gear carrier 83. The first planetary gear 82 meshes with the first sun gear 81 and the ring gear 60. The second sun gear 84 is connected to the lower end of the first planetary gear carrier 83, and the second planetary gear 85 is mounted on the upper end of the second planetary gear carrier 86. The second planetary gear 85 meshes with the second sun gear 84 and the ring gear 60. The third sun gear 87 is connected to the lower end of the second planetary gear carrier 86, and the third planetary gear 88 is mounted on the upper end of the third planetary gear carrier 89. The planetary gear 88 meshes with the third sun gear 87 and the ring gear 60 respectively; the upper end of the third planetary gear carrier 89 extends upward with a rotating shaft 810, the upper end of the rotating shaft 810 passing through the third sun gear 87, the second planetary gear carrier 86, the second sun gear 84, the first planetary gear carrier 83, the first sun gear 81, and the transmission gear 70 from bottom to top and extending out of the upper end of the transmission gear 70; the lower end of the third planetary gear carrier 89 is provided with a connecting part 811 for connecting with an external structure, the connecting part 811 is exposed on the lower surface of the housing 10, and the lower end of the pointer 16 is connected to the positioning hole 812 at the upper end of the rotating shaft 810.

[0066] The first linkage gear set includes a first large linkage gear 90 and a first small linkage gear 101 coaxially assembled together. The second linkage gear set includes a second large linkage gear 102 and a second small linkage gear 103 coaxially assembled together. The output gear 31 meshes with the first large linkage gear 90, the first small linkage gear 101 meshes with the second large linkage gear 102, and the transmission gear 70 meshes with the second small linkage gear 103.

[0067] A third linkage gear 104 is provided at the upper end of the transmission gear 70. The upper end of the rotating shaft 810 extends beyond the upper end of the transmission gear 70 through the third linkage gear 104. A fourth linkage gear 105 and a fifth linkage gear 106 are rotatably provided on one side of the third linkage gear 104 at the upper end of the transmission gear 70. The fourth linkage gear 105 meshes with the third linkage gear 104 and the fifth linkage gear 106 respectively. A linkage part 1061 is provided in the middle of the upper end of the fifth linkage gear 106. A rotating part 10 for manual rotation is provided at the upper end of the housing 10. 7. The rotating part 107 is connected to the linkage part 1061. The rotating part 107 has a hexagonal rotating hole 1071. In this way, when the power is off or there is no power, simply insert a hexagonal wrench into the rotating hole 1071 and rotate it to drive the fifth linkage gear 106 to rotate. This drives the linkage transmission gear 70 to rotate via the fourth linkage gear 105 and the third linkage gear 104, thereby driving the planetary gear set 80 to operate, so as to realize manual opening or closing. This integrates manual and automatic opening and closing, solving the problem of not being able to switch on or off when the power is off or there is no power.

[0068] In this embodiment, the housing 10 includes an upper housing 18 and a lower housing 19 joined together. The opening 12 is located on the upper left side of the upper housing 18, and the lens 15 is located on the upper right side of the upper housing 18. A control button 108 is located on the right side of the lens 15 at the upper end of the upper housing 18. The control button 108 is electrically connected to the circuit board 20. The upper housing 18 and the lower housing 19 form a receiving cavity. The battery compartment 11 is located on the left side of the receiving cavity. The circuit board 20 is located on the upper right side of the receiving cavity. The drive motor 30 is located inside the receiving cavity and in front of the battery compartment 11. The transmission mechanism is located inside the receiving cavity and below the circuit board 20. The rotating part 107 is located on the upper housing 18. The gear ring 60 is formed on the lower housing 19 and located on the right side of the battery compartment 11. The connecting part 811 is exposed on the lower surface of the lower housing 19.

[0069] In summary, the key design feature of this utility model lies in its use of a battery compartment within the housing. An opening is located on the upper left side of the housing corresponding to the battery compartment, allowing the battery to be inserted from top to bottom through the opening. A detachable battery cover, rotatably connected to the opening, enables top-to-bottom battery insertion. Simply rotating the battery cover allows for easy battery removal and replacement, eliminating the need to remove the actuator from the valve or use any additional tools. Furthermore, the drive motor's output is connected to the transmission mechanism. This design enables automatic opening and closing. By setting a linkage part at the upper middle of the fifth linkage gear and a rotating part for manual rotation at the upper end of the housing, the rotating part is connected to the linkage part. In the event of a power outage or power failure, the rotating part can be manually rotated to drive the fifth linkage gear, which in turn drives the fourth and third linkage gears to rotate the linkage transmission gear, thereby actuating the planetary gear set and achieving manual opening or closing. This integrates manual and automatic switching, solving the problem of not being able to switch on or off when there is a power outage or power failure.

Claims

1. A valve intelligent electric actuator, comprising a housing, a circuit board, a drive motor and a transmission mechanism arranged in the housing, the drive motor being electrically connected to the circuit board, and an output end of the drive motor being drivingly connected to the transmission mechanism; characterized in that: a battery compartment for mounting a battery is arranged in the housing, an opening corresponding to the battery compartment is arranged at a left upper end of the housing, the battery is mounted into the battery compartment from top to bottom through the opening, a detachable battery cover is arranged at the opening and is rotatably connected, and the battery is electrically connected to the circuit board; a lens is arranged at a right upper end of the housing, a pointer for indicating opening and closing is arranged in the lens, and the pointer rotates to indicate opening or closing with the action of the transmission mechanism. The opening at the upper end of the housing is provided with a first rotary connection part, the battery cover has a second rotary connection part, and the second rotary connection part is rotatably connected to the first rotary connection part.

2. The valve smart electric actuator of claim 1, wherein: The first rotary connection part is an internal thread part, the second rotary connection part is an external thread part, and the external thread part is threadedly connected with the internal thread part.

3. The valve smart electric actuator of claim 2, wherein: The opening at the upper end of the housing is provided with an annular positioning step, the internal thread part is formed on an inner circumferential sidewall of the annular positioning step, the battery cover has a lower end extending downwardly with an annular embedding part, the external thread part is formed on an outer circumferential sidewall of the annular embedding part, an annular accommodation space is formed between the outer circumferential sidewall of the annular embedding part and a circumferential sidewall of the battery cover, and an upper end of the annular positioning step is adapted to be accommodated in the annular accommodation space.

4. The valve smart electric actuator of claim 3, wherein: The housing comprises an upper housing and a lower housing spliced together, the opening is arranged at a left upper end of the upper housing, the lens is arranged at a right upper end of the upper housing, a control button is arranged at a right side of the lens at the upper end of the upper housing, the control button is electrically connected to the circuit board, the upper housing and the lower housing are configured to form a containing cavity, the battery compartment is arranged at a left side of the containing cavity, the circuit board is located at a right upper side of the containing cavity, the drive motor is located in the containing cavity and at a front side of the battery compartment, and the transmission mechanism is located in the containing cavity and below the circuit board.

5. The valve smart electric actuator of claim 1, wherein: An output gear is connected to an output end of the drive motor, the output gear engages a first linkage gear set, and the first linkage gear set engages a second linkage gear set; 6. The valve smart electric actuator of claim 1, wherein: The transmission mechanism comprises a gear ring, a transmission gear and a planetary gear set, and the transmission gear is engaged with the second linkage gear set; The planetary gear set comprises a first sun gear, a first planetary gear, a first planetary gear carrier, a second sun gear, a second planetary gear, a second planetary gear carrier, a third sun gear, a third planetary gear and a third planetary gear carrier, and the transmission gear, the first planetary gear carrier, the second planetary gear carrier and the third planetary gear carrier are sequentially arranged from top to bottom; The first sun gear is connected to a lower end of the transmission gear, the first planetary gear is mounted to an upper end of the first planetary gear carrier, and the first planetary gear is engaged with the first sun gear and the gear ring respectively; The second sun gear is connected to a lower end of the first planetary gear carrier, the second planetary gear is mounted to an upper end of the second planetary gear carrier, and the second planetary gear is engaged with the second sun gear and the gear ring respectively; ​ The third sun gear is connected to the lower end of the second planetary gear carrier, the third planetary gears are installed on the upper end of the third planetary gear carrier, and the third planetary gears are respectively engaged with the third sun gear and the ring gear; The upper end of the third planetary gear carrier extends upwardly with a rotating shaft, the upper end of the rotating shaft sequentially passes through the third sun gear, the second planetary gear carrier, the second sun gear, the first planetary gear carrier, the first sun gear, the transmission gear from bottom to top, and extends out of the upper end of the transmission gear, and the lower end of the pointer is connected to the positioning hole of the upper end of the rotating shaft.

7. The valve smart electric actuator of claim 6, wherein: The first linkage gear set comprises a first large linkage gear and a first small linkage gear coaxially assembled together, the second linkage gear set comprises a second large linkage gear and a second small linkage gear coaxially assembled together, the output gear is engaged with the first large linkage gear, the first small linkage gear is engaged with the second large linkage gear, and the transmission gear is engaged with the second small linkage gear.

8. The valve smart electric actuator of claim 6, wherein: The upper end of the transmission gear is provided with a third linkage gear, the upper end of the rotating shaft passes through the third linkage gear and extends out of the upper end of the transmission gear, the upper end of the transmission gear is provided with a fourth linkage gear and a fifth linkage gear rotatable on one side of the third linkage gear, the fourth linkage gear is respectively engaged with the third linkage gear and the fifth linkage gear, the upper end of the fifth linkage gear is provided with a linkage portion in the middle, the upper end of the housing is provided with a rotating portion for manual rotation, and the rotating portion is connected to the linkage portion.

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