Valve actuator

Abstract

The utility model discloses a valve actuator which comprises a shell, a circuit board, a driving motor and a gear 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 gear transmission mechanism in a driving mode. A linkage part is arranged at one end of the gear transmission mechanism, a connecting part is connected to the other end of the gear transmission mechanism, the connecting part is exposed out of the lower surface of the shell, a rotating part used for manual rotation is arranged on the upper surface of the shell, and the rotating part is connected to the linkage part; the rotating part is rotated to drive the linkage part to rotate, and the linkage part is in linkage with the gear transmission mechanism to act, so that the gear transmission mechanism drives the linkage part to rotate; therefore, a manual switch and an automatic switch are integrated, and the problem that switching cannot be carried out when power is off or power is off is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the valve actuator field technology especially is a valve actuator. BACKGROUND

[0002] The actuator is an important component of the automatic control system. Its function is to accept the control signal sent by the controller, change the size of the controlled medium, and maintain the controlled variable at the required value or within a certain range. The actuator can be divided into three categories according to its energy form: pneumatic, hydraulic and electric.

[0003] Valve electric actuator refers to the mechanical device driven by electric energy to drive the valve stem to lift and control the opening and closing of the valve flow passage. Because of its convenience, it is often used in pipeline installation. Since it is a precision electrical component, it generally requires certain explosion-proof, protection level (waterproof, dustproof) requirements, according to the working conditions, it is divided into explosion-proof and ordinary type, according to the voltage, it is mainly divided into AC380V, AC220V and DC24V, according to the actuator action mode, it is divided into on-off type and regulating type. Most of the valve electric actuators on the market need electricity to realize on-off, which causes inconvenience in opening the lock in the case of power failure or no power.

[0004] Therefore, it is necessary to develop a new technology to solve the above problems. INVENTION CONTENTS

[0005] Therefore, the utility model provides a valve actuator which integrates manual switch and automatic switch, and solves the problem of inability to switch in the case of power failure or no power.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A valve actuator, comprising a shell, an electric circuit board, a drive motor and a gear transmission mechanism are arranged in the shell, the drive motor is electrically connected to the electric circuit board, and the output end of the drive motor is drivingly connected to the gear transmission mechanism;

[0008] One end of the gear transmission mechanism is provided with a linkage part, the other end of the gear transmission mechanism is connected with a connecting part, the connecting part is exposed on the lower surface of the shell, the upper surface of the shell is provided with a rotating part for manual rotation, and the rotating part is connected to the linkage part;

[0009] Rotating the rotating part drives the linkage part to rotate, the linkage part drives the gear transmission mechanism to act, so that the gear transmission mechanism drives the connecting part to rotate.

[0010] As a preferred scheme, the shell comprises an upper shell and a lower shell which are spliced together, the upper shell and the lower shell form a receiving cavity, the circuit board is located at the upper right side of the receiving cavity, the driving motor is located at the left rear side of the receiving cavity, the front side of the driving motor is provided with a battery compartment in the receiving cavity, the battery is installed in the battery compartment, the battery is electrically connected to the circuit board, and the gear transmission mechanism is located in the receiving cavity and below the circuit board.

[0011] As a preferred scheme, the upper end of the upper shell is provided with a lens, the lens is provided with a pointer for indicating opening and closing, and the pointer rotates to indicate opening or closing with the action of the gear transmission mechanism.

[0012] As a preferred scheme, the right side of the lens is provided with a control button at the upper end of the upper shell, and the control button is electrically connected to the circuit board.

[0013] As a preferred scheme, the upper end of the lower shell is integrally provided with a flange extending outwardly around the periphery, the lower surface of the upper shell abuts against the upper surface of the flange, the left outer wall of the lower shell is recessed to form a groove extending in the up-down direction, the groove penetrates to the lower surface of the lower shell, the upper end of the groove extends to the lower surface of the flange, an antenna is installed in the groove, the upper end of the antenna is connected to the lower surface of the flange, and the antenna is connected to the circuit board through a wireless communication module.

[0014] As a preferred scheme, the flange is provided with a plurality of first connecting holes, the lower side of the upper shell is provided with a plurality of second connecting holes, and the first connecting holes and the second connecting holes are connected by screw fastening.

[0015] As a preferred scheme, the upper surface of the flange is recessed to form an annular positioning groove near the side of the receiving cavity, an annular sealing ring is embedded in the annular positioning groove, an annular positioning wall is provided in the lower side of the upper shell, and the lower end of the annular positioning wall extends into the annular positioning groove and abuts against the annular sealing ring.

[0016] As a preferred scheme, the output end of the driving motor is connected with an output gear, the output gear is engaged with a first linkage gear set, the first linkage gear set is engaged with a second linkage gear set, and the second linkage gear set is engaged with a transmission gear and a planetary gear set.

[0017] The gear transmission mechanism comprises a gear ring, a transmission gear and a planetary gear set, the transmission gear is engaged with the second linkage gear set.

[0018] 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, 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, and the first planetary gear carrier, the second planetary gear carrier, and the third planetary gear carrier are all located in the ring gear;

[0019] The first sun gear is connected to the lower end of the transmission gear, the first planetary gear is installed on the upper end of the first planetary gear carrier, and the first planetary gear is respectively engaged with the first sun gear and the ring gear.

[0020] The second sun gear is connected to the lower end of the first planetary gear carrier, the second planetary gear is installed on the upper end of the second planetary gear carrier, and the second planetary gear is respectively engaged with the second sun gear and the ring gear.

[0021] The third sun gear is connected to the lower end of the second planetary gear carrier, the third planetary gear is installed on the upper end of the third planetary gear carrier, and the third planetary gear is respectively engaged with the third sun gear and the ring gear.

[0022] The upper end of the third planetary gear carrier extends upwardly with a rotating shaft, and 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, and the transmission gear from bottom to top and extends out of the upper end of the transmission gear.

[0023] As a preferred solution, 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.

[0024] As a preferred solution, 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 side of the transmission gear is provided with a fourth linkage gear and a fifth linkage gear rotatably arranged 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 linkage part is arranged in the upper middle part of the fifth linkage gear, and the coupling part is arranged at the lower end of the third planetary gear carrier.

[0025] The utility model discloses an automatic switch, which comprises a shell, a gear transmission mechanism arranged in the shell, a linkage part arranged on one end of the gear transmission mechanism, a rotating part arranged on the upper surface of the shell and used for manual rotation, and a driving motor.

[0026] In order to make the technical scheme clearer, the technical means and the achieved specific purposes and functions of the utility model are further explained in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the whole structure three-dimensional schematic diagram of the embodiment of the utility model;

[0028] Figure 2 is another angle whole structure three-dimensional schematic diagram of the embodiment of the utility model;

[0029] Figure 3 is the exploded schematic diagram of the embodiment of the utility model;

[0030] Figure 4 is another exploded schematic diagram of the embodiment of the utility model;

[0031] Figure 5 is the partial structure exploded schematic diagram of the embodiment of the utility model;

[0032] Figure 6 is another partial structure exploded schematic diagram of the embodiment of the utility model;

[0033] Figure 7 is still another partial structure exploded schematic diagram of the embodiment of the utility model.

[0034] Figure 8 is still another partial structure exploded schematic diagram of the embodiment of the utility model.

[0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] 10, shell 11, upper shell

[0037] 111, second connecting hole 112, annular positioning wall

[0038] 12, lower shell 121, flange

[0039] 122 recess 123 first connecting hole

[0040] 124 screw 125 annular positioning groove

[0041] 13 battery compartment 14 battery

[0042] 15 lens 16 pointer

[0043] 17 switch indicating block 18 control button

[0044] 19 antenna 20 circuit board

[0045] 30 driving motor 31 output gear

[0046] 40 linkage portion 50 coupling portion

[0047] 60 rotating portion 61 rotating hole

[0048] 70 gear ring 80 transmission gear

[0049] 90 planetary gear set 91 first sun gear

[0050] 92 first planetary gear 93 first planetary gear carrier

[0051] 94 second sun gear 95 second planetary gear

[0052] 96 second planetary gear carrier 97 third sun gear

[0053] 98 third planetary gear 99 third planetary gear carrier

[0054] 910 rotating shaft 911 positioning hole

[0055] 101 first large linkage gear 102 first small linkage gear

[0056] 103 second large linkage gear 104 second small linkage gear

[0057] 105 third linkage gear 106 fourth linkage gear

[0058] 107 fifth linkage gear. DETAILED DESCRIPTION

[0059] In the description of the utility model, it needs to explain, if the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "internal", "external" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore it cannot be understood as a limitation on the utility model.

[0060] Please refer to Figures 1 to 8 It shows the specific structure of the valve actuator provided by the embodiment of the utility model.

[0061] The valve actuator comprises a shell 10, a circuit board 20, a driving motor 30 and a gear transmission mechanism are arranged in the shell 10, the driving motor 30 is electrically connected to the circuit board 20, and the output end of the driving motor 30 is drivingly connected to the gear transmission mechanism;One end of the gear transmission mechanism is provided with a linkage part 40, the other end of the gear transmission mechanism is connected with a connecting part 50 for being connected with the opening and closing structure of the valve, the connecting part 50 is exposed to the lower surface of the shell 10, the upper surface of the shell 10 is provided with a rotating part 60 for manual rotation, and the rotating part 60 is connected to the linkage part 40;Rotating the rotating part 60 drives the linkage part 40 to rotate, the linkage part 40 drives the gear transmission mechanism to act, so that the gear transmission mechanism drives the connecting part 50 to rotate.

[0062] The output end of the driving motor 30 is connected with an output gear 31, the output gear 31 is engaged with a first linkage gear set, the first linkage gear set is engaged with a second linkage gear set;The gear transmission mechanism comprises a gear ring 70, a transmission gear 80 and a planetary gear set 90, and the transmission gear 80 is engaged with the second linkage gear set.

[0063] The planetary gear set 90 comprises a first sun gear 91, a first planetary gear 92, a first planetary gear carrier 93, a second sun gear 94, a second planetary gear 95, a second planetary gear carrier 96, a third sun gear 97, a third planetary gear 98 and a third planetary gear carrier 99, the transmission gear 80, the first planetary gear carrier 93, the second planetary gear carrier 96 and the third planetary gear carrier 99 are sequentially arranged from top to bottom, and the first planetary gear carrier 93, the second planetary gear carrier 96 and the third planetary gear carrier 99 are all located in the gear ring 70.

[0064] The first sun gear 91 is connected to the lower end of the transmission gear 80, the first planetary gear 92 is installed on the upper end of the first planetary gear carrier 93, and the first planetary gear 92 is respectively engaged with the first sun gear 91 and the ring gear 70; the second sun gear 94 is connected to the lower end of the first planetary gear carrier 93, the second planetary gear 95 is installed on the upper end of the second planetary gear carrier 96, and the second planetary gear 95 is respectively engaged with the second sun gear 94 and the ring gear 70; the third sun gear 97 is connected to the lower end of the second planetary gear carrier 96, the third planetary gear 98 is installed on the upper end of the third planetary gear carrier 99, and the third planetary gear 98 is respectively engaged with the third sun gear 97 and the ring gear 70; the upper end of the third planetary gear carrier 99 extends upwardly to have a rotating shaft 910, and the upper end of the rotating shaft 910 sequentially passes through the third sun gear 97, the second planetary gear carrier 96, the second sun gear 94, the first planetary gear carrier 93, the first sun gear 91 and the transmission gear 80 from bottom to top, and extends out of the upper end of the transmission gear 80.

[0065] The first linkage gear set includes a first large linkage gear 101 and a first small linkage gear 102 coaxially assembled together, the second linkage gear set includes a second large linkage gear 103 and a second small linkage gear 104 coaxially assembled together, the output gear 31 is engaged with the first large linkage gear 101, the first small linkage gear 102 is engaged with the second large linkage gear 103, and the transmission gear 80 is engaged with the second small linkage gear 104.

[0066] The upper end of the transmission gear 80 is provided with a third linkage gear 105, the upper end of the rotating shaft 910 passes through the third linkage gear 105 and extends out of the upper end of the transmission gear 80, a fourth linkage gear 106 and a fifth linkage gear 107 are rotatably arranged on one side of the third linkage gear 105 above the transmission gear 80, the fourth linkage gear 106 is respectively engaged with the third linkage gear 105 and the fifth linkage gear 107, the linkage part 40 is arranged in the upper middle part of the fifth linkage gear 107, and the connecting part 50 is arranged at the lower end of the third planetary gear carrier 99. The rotating part 60 has a hexagonal rotating hole 61, so that when there is no power supply, only the hexagonal wrench is inserted into the rotating hole 61 and rotated to drive the linkage fifth linkage gear 107 to rotate, the linkage transmission gear 80 is driven to rotate through the fourth linkage gear 106 and the third linkage gear 105, the linkage planetary gear set 90 is driven to act, and the manual opening or closing is realized, so that the manual switch and the automatic switch are integrated, and the problem that the switch cannot be performed when there is no power supply is solved.

[0067] The shell 10 comprises an upper shell 11 and a lower shell 12 which are spliced together, the upper shell 11 and the lower shell 12 are configured to form a receiving cavity, the circuit board 20 is located at the upper right side of the receiving cavity, the driving motor 30 is located at the left rear side of the receiving cavity, the front side of the driving motor 30 is provided with a battery compartment 13 in the receiving cavity, the battery compartment 13 is provided with a battery 14, the battery 14 is electrically connected to the circuit board 20, the gear transmission mechanism is located in the receiving cavity and below the circuit board 20, the gear ring 70 is located at the right side of the receiving cavity and is formed on the lower shell 12, and the rotating part 60 is arranged at the upper end of the upper shell 11.

[0068] The upper end of the upper shell 11 is provided with a lens 15, the lens 15 is provided with a pointer 16 for indicating opening and closing, the lower end of the pointer 16 is connected to the positioning hole 911 of the upper end of the rotating shaft 910, the pointer 16 rotates to indicate opening or closing with the action of the gear transmission mechanism, and the lens 15 is further provided with a switch indicating block 17, the switch indicating block 17 is provided with "on" and "off" characters, and the switch indicating block 17 is sleeved outside the pointer 16.

[0069] The right side of the lens 15 is provided with a control button 18 at the upper end of the upper shell 11, the control button 18 is electrically connected to the circuit board 20, and the opening and closing of the driving motor 30 can be controlled through the control button 18.

[0070] The upper end of the lower shell 12 is integrally provided with a flange 121 which extends outwardly, the lower surface of the upper shell 11 abuts against the upper surface of the flange 121, the left outer wall of the lower shell 12 is recessed to form a recess 122 which extends in the upward and downward directions, the recess 122 penetrates to the lower surface of the lower shell 12, the upper end of the recess 122 extends to the lower surface of the flange 121, the recess 122 is provided with an antenna 19, the upper end of the antenna 19 is connected to the lower surface of the flange 121, so that the antenna 19 is hiddenly installed in the side wall of the shell 10, further improving the waterproof effect, and the antenna 19 is connected to the circuit board 20 through a wireless communication module.

[0071] The flange 121 is provided with a plurality of first connecting holes 123, the lower side of the upper shell 11 is provided with a plurality of second connecting holes 111, the first connecting holes 123 and the second connecting holes 111 are locked and connected through screws 124, so as to realize the firm connection between the upper shell 11 and the lower shell 12.

[0072] The upper surface of the flange 121 is recessed with an annular positioning groove 125 near the side of the accommodating cavity, an annular sealing ring is embedded in the annular positioning groove 125, and an annular positioning wall 112 is arranged on the lower side of the upper shell 11, the lower end of the annular positioning wall 112 extends into the annular positioning groove 125 and abuts against the annular sealing ring, so that the connection between the upper shell 11 and the lower shell 12 is more compact through the combined design of the annular positioning groove 125, the annular sealing ring and the annular positioning wall 112, and a good waterproof effect can be achieved.

[0073] In conclusion, the utility model discloses the design emphasis lies in, it mainly is through the output of drive motor drive connection in gear drive mechanism, makes it realized automatic formula opening or closing, through setting up the linkage portion in one end of gear drive mechanism, setting up the rotating portion for manual rotation on the upper surface of shell, makes rotating portion connect in linkage portion, so, makes it only need manual rotation rotating portion drive linkage portion rotation, linkage portion linkage gear drive mechanism action when power failure or no electricity, to make gear drive mechanism drive coupling portion rotation, to realize manual formula opening or closing, thereby can make it collect manual formula switch and automatic formula open about integral, solved the problem that power failure or no electricity can not carry out switch.

Claims

1. A valve actuator comprising a housing, a circuit board, a drive motor and a gear 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 gear transmission mechanism; characterized in that: one end of the gear transmission mechanism is provided with a linkage part, the other end of the gear transmission mechanism is connected with a connecting part, the connecting part is exposed on the lower surface of the housing, the upper surface of the housing is provided with a rotating part for manual rotation, and the rotating part is connected to the linkage part; rotating the rotating part drives the linkage part to rotate, the linkage part drives the gear transmission mechanism to act, so that the gear transmission mechanism drives the connecting part to rotate. The housing comprises an upper housing and a lower housing spliced together, the upper housing and the lower housing are configured to form a receiving cavity, the circuit board is located at the upper right side of the receiving cavity, the drive motor is located at the left rear side of the receiving cavity, a battery compartment is arranged in the front side of the drive motor in the receiving cavity, a battery is installed in the battery compartment, the battery is electrically connected to the circuit board, and the gear transmission mechanism is located in the receiving cavity and below the circuit board. The upper end of the upper housing is provided with a lens, the lens is provided with a pointer for indicating opening and closing, and the pointer rotates to indicate opening or closing with the action of the gear transmission mechanism.

2. The valve actuator of claim 1, wherein: The right side of the lens is provided with a control button on the upper end of the upper housing, and the control button is electrically connected to the circuit board.

3. The valve actuator of claim 2, wherein: The upper end of the lower housing is integrally extended outwardly with a flange, the lower surface of the upper housing abuts against the upper surface of the flange, the left outer wall of the lower housing is recessed with a groove extending in the up-down direction, the groove penetrates to the lower surface of the lower housing, the upper end of the groove extends to the lower surface of the flange, an antenna is installed in the groove, the upper end of the antenna is connected to the lower surface of the flange, and the antenna is connected to the circuit board through a wireless communication module.

4. The valve actuator of claim 3, wherein: The flange is provided with a plurality of first connecting holes, the lower side of the upper housing is provided with a plurality of second connecting holes, and the first connecting holes and the second connecting holes are connected by screw fastening.

5. The valve actuator of claim 2, wherein: The upper surface of the flange is recessed with an annular positioning groove near the side of the receiving cavity, an annular sealing ring is embedded in the annular positioning groove, the lower side of the upper housing is provided with an annular positioning wall, and the lower end of the annular positioning wall extends into the annular positioning groove and abuts against the annular sealing ring.

6. A valve actuator according to claim 5 wherein: The output end of the drive motor is connected with an output gear, the output gear is engaged with a first linkage gear set, and the first linkage gear set is engaged with a second linkage gear set.

7. The valve actuator of claim 5, wherein: The gear transmission mechanism comprises a gear ring, a transmission gear and a planetary gear set, the transmission gear is engaged with the second linkage gear set.

8. The valve actuator of claim 1, wherein: 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, 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, and the first planetary gear carrier, the second planetary gear carrier and the third planetary gear carrier are located in the gear ring. ​ ​ The first sun gear is connected to the lower end of the transmission gear, the first planetary gear is installed on the upper end of the first planetary gear carrier, and the first planetary gear is respectively engaged with the first sun gear and the ring gear; The second sun gear is connected to the lower end of the first planetary gear carrier, the second planetary gear is installed on the upper end of the second planetary gear carrier, and the second planetary gear is respectively engaged with the second sun gear and the ring gear; The third sun gear is connected to the lower end of the second planetary gear carrier, the third planetary gear is installed on the upper end of the third planetary gear carrier, and the third planetary gear is 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, and 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 and extends out of the upper end of the transmission gear from bottom to top.

9. The valve actuator of claim 8, wherein: The first linkage gear set includes a first large linkage gear and a first small linkage gear coaxially assembled together, the second linkage gear set includes 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.

10. The valve actuator of claim 8, 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, a fourth linkage gear and a fifth linkage gear are rotatably arranged on one side of the third linkage gear above the transmission gear, the fourth linkage gear is respectively engaged with the third linkage gear and the fifth linkage gear, the linkage part is arranged in the upper middle part of the fifth linkage gear, and the connecting part is arranged at the lower end of the third planetary gear carrier.

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