An oil-immersed actuator

Abstract

This utility model relates to an oil-immersed actuator, including an actuator body and a housing for mounting the actuator body. The housing includes a lower housing and an upper cover. A mounting groove for placing the actuator body is provided within the lower housing. The actuator body is placed in the mounting groove and fixed to the lower housing with screws. A sealing cover blocks the upper opening of the mounting groove to form a sealed space, which is filled with oil. The actuator body is located within the sealed space and is immersed in the oil. This utility model, by adding a sealing cover, utilizes the combination of the sealing cover and the lower housing to form a sealed space, and fills the sealed space with oil, allowing the actuator body to be immersed in oil. This effectively prevents the actuator from getting damp and rusting, ensuring the normal and stable operation of the actuator.

Description

Technical Field

[0001] This utility model relates to an actuator, and more particularly to an oil-immersed actuator. Background Technology

[0002] Actuators used to control the switching of ball valves are installed inside metering devices such as water meters and heat meters. The structure of existing actuators generally includes an actuator body, on which components such as a motor, output shaft, manual adjustment shaft, position sensor, and limit switch are installed.

[0003] The housing of metering devices such as water meters and heat meters generally includes a lower housing and an upper cover. The upper cover is fastened to the lower housing and fixed with bolts. Currently, the common installation method for actuators is to fix the actuator inside the lower housing with screws and then directly fasten the upper cover.

[0004] The drawback of the existing actuator installation method is that water or moisture can enter the housing during use. The actuator is easily affected by moisture and rust when it is in a humid environment for a long time, which will affect the normal switching of the actuator.

[0005] Based on the above technical problems, the inventor has improved the installation method of the actuator and proposed an oil-immersed actuator. The improved installation scheme immerses the entire actuator in oil, which can effectively prevent the actuator from getting damp and rusting, and ensure the normal and stable operation of the actuator. Utility Model Content

[0006] This invention addresses the shortcomings of existing technologies by providing an oil-immersed actuator.

[0007] This utility model is achieved through the following technical solution: providing an oil-immersed actuator, including an actuator body and a housing for mounting the actuator body. The housing includes a lower housing and an upper cover. A mounting groove for placing the actuator body is provided in the lower housing. The actuator body is placed in the mounting groove and fixed to the lower housing with screws. A sealing cover blocks the upper opening of the mounting groove to form a sealed space. Oil is filled in the sealed space, and the actuator body is located in the sealed space and immersed in the oil.

[0008] Preferably, the actuator body includes a panel on which a motor, an output shaft, a manual adjustment shaft, a position sensor, and a limit switch are mounted.

[0009] Preferably, the bottom surface of the sealing cover is provided with an upwardly protruding first storage groove and a second storage groove, the limit switch and the output shaft are located in the first storage groove, and the top surface of the first storage groove is provided with a through hole for the output shaft to pass through.

[0010] Preferably, the motor is located in the second storage slot, and a wiring slot is provided on one side of the second storage slot. The wiring slot is connected to the second storage slot, and the wires connecting the motor are arranged in the wiring slot.

[0011] Preferably, an oil injection hole is provided on the top surface of the second storage slot, and a waterproof and breathable valve is installed at the oil injection hole. Installing the waterproof and breathable valve can ensure the balance of internal and external air pressure and avoid thermal expansion and contraction.

[0012] Preferably, the bottom surface of the sealing cover is provided with a first insertion hole and a second slot, the manual adjustment shaft passes through the first insertion hole, and the position sensor is inserted into the second slot; a third storage groove is provided on the outer periphery of the second slot, and a magnet is installed in the third storage groove.

[0013] Preferably, a fourth storage slot, a fifth storage slot, a sixth storage slot, and a wire outlet slot are provided on the top surface of the sealing cover. The battery is installed in the fourth storage slot, the circuit board is installed in the fifth storage slot, the angle sensor is installed in the sixth storage slot, and the wire connecting the motor passes out from the wire outlet slot.

[0014] Preferably, the sealing cover is fixed to the panel of the actuator body by screws, the position of the mounting screws is sealed with sealant, and the connection between the sealing cover and the mounting groove is sealed with sealant around the perimeter.

[0015] Preferably, the sixth storage slot corresponds vertically to the third storage slot.

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

[0017] This invention incorporates a sealing cover design, which, through the combination of the sealing cover and the lower housing, forms a sealed space. This sealed space is then filled with oil, immersing the actuator body in the oil. This effectively prevents the actuator from becoming damp and rusting, ensuring its normal and stable operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the housing of this utility model from one perspective;

[0019] Figure 2 This is a schematic diagram of the external structure of the housing of this utility model from another perspective;

[0020] Figure 3 This is a perspective view of the actuator of this utility model;

[0021] Figure 4 This is a perspective view showing the assembly relationship between the actuator and the lower housing of this utility model;

[0022] Figure 5 This is a schematic diagram of the working state when the sealing cover of this utility model covers the actuator;

[0023] Figure 6This is a perspective view of the sealing cap of this utility model from one angle;

[0024] Figure 7 This is another perspective view of the sealing cap of this utility model;

[0025] As shown in the figure:

[0026] 1. Top cover, 2. Lower housing, 3. Limit switch, 4. Output shaft, 5. Motor, 6. Manual adjustment shaft, 7. Position sensor, 8. Panel, 9. Actuator body, 10. Mounting slot, 11. Sealing cover, 12. Sixth storage slot, 13. Fifth storage slot, 14. Fourth storage slot, 15. Through hole, 16. Cable outlet slot, 17. Second storage slot, 18. Wiring slot, 19. First storage slot, 20. First insertion hole, 21. Third storage slot, 22. Second slot, 23. Oil filling hole. Detailed Implementation

[0027] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0028] like Figure 1-7 As shown, this utility model includes an actuator body 9 and a housing for mounting the actuator body 9. The housing includes a lower housing 2 and an upper cover 1. A mounting groove 10 for placing the actuator body 9 is provided inside the lower housing 2. The actuator body 9 is placed in the mounting groove 10 and fixed to the lower housing 2 with screws. The actuator body 9 adopts an existing structure and includes a panel 8. A motor 5, an output shaft 4, a manual adjustment shaft 6, a position sensor 7, and a limit switch 3 are mounted on the panel 8. A sealing cover 11 blocks the upper opening of the mounting groove 10 to form a sealed space. Oil is filled in the sealed space, and the actuator body 9 is located within the sealed space and immersed in the oil.

[0029] In this embodiment, a first receiving groove 19 and a second receiving groove 17 protruding upwards are provided on the bottom surface of the sealing cover 11. The limit switch 3 and the output shaft 4 are located in the first receiving groove 19. A through hole 15 for the output shaft 4 to pass through is provided on the top surface of the first receiving groove 19. An O-ring is fitted on the output shaft 4. The motor 5 is located in the second receiving groove 17. A wiring groove 18 is provided on one side of the second receiving groove 17. The wiring groove 18 communicates with the second receiving groove 17, and the wires connecting the motor 5 are arranged in the wiring groove 18.

[0030] In this embodiment, an oil injection hole 23 is provided on the top surface of the second storage groove 17, and a waterproof and breathable valve is installed at the oil injection hole 23. The waterproof and breathable valve adopts an existing structure. Installing the waterproof and breathable valve can ensure the balance of internal and external air pressure and avoid thermal expansion and contraction.

[0031] In this embodiment, the bottom surface of the sealing cover 11 is provided with a first insertion hole 20 and a second slot 22. The manual adjustment shaft 6 passes through the first insertion hole 20, and an O-ring is fitted on the manual adjustment shaft 6. The position sensor 7 is inserted into the second slot 22. A third storage groove 21 is provided on the outer periphery of the second slot 22, and a magnet is installed in the third storage groove 21.

[0032] In this embodiment, a fourth storage groove 14, a fifth storage groove 13, a sixth storage groove 12 and a wire outlet groove 16 are provided on the top surface of the sealing cover 11. The battery is installed in the fourth storage groove 14, the circuit board is installed in the fifth storage groove 13, the angle sensor is installed in the sixth storage groove 12, and the wire connecting the motor 5 passes through the wire outlet groove 16. A sealing ring is installed at the wire outlet position and sealed with sealant.

[0033] In this embodiment, the sixth storage slot 12 corresponds vertically to the third storage slot 21.

[0034] In this embodiment, the sealing cover 11 is fixed to the panel 8 of the actuator body 9 by screws, and the position of the mounting screws is sealed with sealant. Furthermore, the periphery of the connection between the sealing cover 11 and the mounting groove 10 is sealed with sealant.

[0035] During assembly, first install and fix the actuator body 9 into the mounting groove 10 of the lower housing 2, then install the sealing cover 11 to form a sealed space and cover the actuator body 9 in the sealed space. Then inject oil into the sealed space through the oil injection hole 23. After the oil injection is completed, install the waterproof and breathable valve at the oil injection hole 23. Finally, assemble the upper cover 1 and the lower housing 2 together.

[0036] This utility model, by adding a sealing cover 11, utilizes the combination of the sealing cover 11 and the lower housing 2 to form a sealed space, and fills the sealed space with oil, so that the actuator body 9 is immersed in oil, thereby effectively preventing the actuator from getting damp and rusting, and ensuring the normal and stable operation of the actuator.

[0037] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. An oil-immersed actuator, characterized in that: The device includes an actuator body and a housing for mounting the actuator body. The housing includes a lower housing and an upper cover. The lower housing has a mounting groove for placing the actuator body. The actuator body is placed in the mounting groove and fixed to the lower housing with screws. The sealing cover blocks the upper opening of the mounting groove to form a sealed space. The sealed space is filled with oil, and the actuator body is located in the sealed space and is immersed in the oil.

2. The oil-immersed actuator according to claim 1, characterized in that: The actuator body includes a panel on which a motor, an output shaft, a manual adjustment shaft, a position sensor, and a limit switch are mounted.

3. The oil-immersed actuator according to claim 2, characterized in that: The bottom surface of the sealing cover is provided with an upwardly protruding first and second storage groove. The limit switch and the output shaft are located in the first storage groove. The top surface of the first storage groove is provided with a through hole for the output shaft to pass through.

4. The oil-immersed actuator according to claim 3, characterized in that: The motor is located in the second storage slot. A wiring slot is provided on one side of the second storage slot. The wiring slot is connected to the second storage slot, and the wires connecting the motor are arranged in the wiring slot.

5. An oil-immersed actuator according to claim 4, characterized in that: An oil injection hole is provided on the top surface of the second storage slot, and a waterproof and breathable valve is installed at the oil injection hole.

6. An oil-immersed actuator according to claim 2, characterized in that: The bottom surface of the sealing cover is provided with a first insertion hole and a second slot. The manual adjustment shaft passes through the first insertion hole, and the position sensor is inserted into the second slot. A third storage slot is provided on the outer periphery of the second slot, and a magnet is installed in the third storage slot.

7. An oil-immersed actuator according to claim 6, characterized in that: The top surface of the sealing cover is provided with a fourth storage slot, a fifth storage slot, a sixth storage slot and a wire outlet slot. The battery is installed in the fourth storage slot, the circuit board is installed in the fifth storage slot, the angle sensor is installed in the sixth storage slot, and the wire connecting the motor passes out from the wire outlet slot.

8. An oil-immersed actuator according to claim 1, characterized in that: The sealing cover is fixed to the panel of the actuator body with screws, and the connection between the sealing cover and the mounting groove is sealed with sealant.

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