Convenient electric actuating mechanism

Abstract

The utility model relates to a convenient electric actuating mechanism, which comprises an upper shell, a lower shell and a connecting pipe, the upper shell is connected with the lower shell through a bolt, the connecting pipe is arranged at the bottom of the lower shell, and a first electric structure, a second electric structure, an electric control board and a manual actuating structure are respectively arranged in the lower shell. The electric control board is connected with the first electric structure and the second electric structure, an output structure is arranged between the first electric structure and the second electric structure, the manual execution structure is movably connected with the second electric structure, and the electric control board controls any one of the first electric structure and the second electric structure to be started. The middle manual execution structure comprises a third gear, a rotating handle, a one-way bearing and a spring; the third gear is installed on the second electric structure, and a connector is installed at the upper end of an upper shell of the third gear and penetrates through the upper shell. The electric actuating mechanism solves the problems that when an existing electric actuating mechanism performs manual actuating, operation is inconvenient, and valve closing or valve opening cannot be completed in a short time.

Description

Technical Field

[0001] The utility model relates to the technical field of electric actuators, and particularly relates to a convenient electric actuator. Background Technique

[0002] An electric actuator is a device that can convert input electrical energy into mechanical motion and is used to drive valves, regulating mechanisms, diaphragm pumps, etc. in various industrial automatic control systems. In the case of power failure in existing electric actuators, it is easy to cause the valve to fail to close, which may easily cause relatively large losses or potential safety hazards.

[0003] Therefore, in order to solve the above technical problems, Chinese Patent CN116642047B, an electric actuator, points out that when it is necessary to switch to the manual execution mode, the conversion structure is rotated to the second position. When the conversion structure is in the second position, the input end and the output end of the electric input structure are disengaged, and the input end and the output end of the manual input structure are connected, so as to drive the intermediate transmission structure to rotate through the manual input structure, and the rotation of the intermediate transmission structure drives the output structure to rotate. The above patent can realize manual execution in the case of motor power failure, thereby reducing the subsequent hazards caused by the inability to close the valve. However, there are still certain technical deficiencies in the above patent. During manual execution, the operation is relatively cumbersome. It is necessary to first rotate the conversion structure to the second position, and then when the conversion structure is in the second position, the input end and the output end of the electric input structure are disengaged, and the input end and the output end of the manual input structure are connected. This results in too many steps and cannot achieve manual execution of closing the valve in a shorter time. In some cases, if it is not closed in time, more serious consequences may be caused. Therefore, it is necessary to shorten the manual execution and shorten the operation steps.

[0004] Therefore, in order to shorten the operation steps of manual execution, quickly complete the manual execution of closing the valve, and prevent serious consequences caused by the valve not being closed in time, a convenient electric actuator is hereby proposed to solve the deficiencies in the above existing technologies. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a convenient electric actuator, which solves the problem that the existing electric actuator is not convenient to operate and cannot complete the closing or opening of the valve in a short time during manual execution.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A convenient electric actuator, including an upper housing, a lower housing, and a connecting pipe. The upper housing and the lower housing are connected by bolts. The connecting pipe is installed at the bottom of the lower housing. Inside the lower housing, a first electric structure, a second electric structure, an electric control board, and a manual execution structure are respectively installed. The electric control board is connected to the first electric structure and the second electric structure. An output structure is provided between the first electric structure and the second electric structure. The manual execution structure is movably connected to the second electric structure. The electric control board controls the startup of any one of the first electric structure and the second electric structure. The manual execution structure includes a third gear, a turning handle, a one-way bearing, and a spring. The third gear is installed on the second electric structure. A connecting body is installed at the upper end of the upper housing and penetrates the upper housing. A groove is provided at the lower end of the connecting body. A one-way bearing is provided in the groove. The third gear is connected to the inner ring of the one-way bearing. A gasket is provided on the second electric structure. A spring is provided on the gasket. The spring extends to the inside of the connecting body. A turning handle is installed at the upper end of the connecting body. The output structure is connected to the connecting pipe.

[0007] Through the above technical solutions, further, the second electric structure rotates synchronously with the third gear, and the second electric structure rotates synchronously with the output structure.

[0008] Further, the second electric structure includes a second motor, a first gear, and an output shaft. The second motor is installed inside the lower housing. An output shaft is provided at the output end of the second motor. A second gear and a first gear are sequentially installed on the surface of the output shaft from top to bottom. Both the second gear and the first gear form a gear transmission with the output structure.

[0009] As a preferred technical solution, the first electric structure includes a first motor and a fourth gear. The first motor is installed inside the lower housing near the right side of the second motor. A fourth gear that forms a gear transmission with the output structure is provided at the output end of the first motor.

[0010] Further, the output structure includes a rotating shaft, a fifth gear, a sixth gear, a seventh gear, and an eighth gear. The rotating shaft is vertically installed inside the lower housing. An eighth gear, a seventh gear, a sixth gear, and a fifth gear are sequentially installed on the surface of the rotating shaft from top to bottom. The rotating shaft penetrates the lower housing and is connected to the connecting pipe. The eighth gear and the third gear, the second gear and the seventh gear, the first gear and the sixth gear, and the fifth gear and the fourth gear form a gear transmission.

[0011] As a preferred technical solution, the third gear is initially located above the eighth gear, and the third gear and the eighth gear operate synchronously.

[0012] Furthermore, one-way bearings are provided at the inner top of the upper housing and the inner bottom of the lower housing, and the inner ring of the one-way bearing is connected to the rotating shaft.

[0013] Compared with the prior art, the present utility model provides a convenient electric actuator, which has the following beneficial effects:

[0014] 1. When performing manual operation, simply press the turning handle. At this time, the turning handle drives the connecting body to press down under the action of pressure. Since the third gear and the eighth gear rotate synchronously and are in a gear matching relationship, when the connecting body drives the third gear to press down, the third gear and the eighth gear form a gear match. At this time, turn the handle. Due to the action of the one-way bearing, the third gear is driven to rotate, and then through the gear matching, the rotating shaft is driven to rotate, thereby completing the closing or opening of the valve for manual operation. Such an operation is more convenient and can quickly complete the closing of the valve in a short time, preventing the harm caused by the inability to close the valve in a short time. Therefore, the problem that the existing electric actuator is not convenient to operate and cannot complete the closing or opening of the valve in a short time during manual operation is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the present utility model;

[0016] Figure 2 is a front view schematic diagram of the present utility model;

[0017] Figure 3 is a schematic diagram of the internal structure of the upper housing of the present utility model;

[0018] Figure 4 is of the present utility model Figure 3 three-dimensional schematic diagram;

[0019] Figure 5 is a schematic diagram of the internal structure of the lower housing of the present utility model;

[0020] Figure 6 is of the present utility model Figure 5 three-dimensional schematic diagram;

[0021] Figure 7 is a left view schematic diagram of the present utility model;

[0022] Figure 8 is of the present utility model Figure 7 A-A sectional view schematic diagram;

[0023] Figure 9 is of the present utility model Figure 8 partial enlarged schematic diagram at A;

[0024] In the figure: 1. Upper housing; 2. Lower housing; 3. Connecting pipe; 4. First motor; 5. Second motor; 6. First gear; 7. Second gear; 8. Third gear; 9. Connecting body; 10. Rotating handle; 11. Fourth gear; 12. Rotating shaft; 13. Fifth gear; 14. Sixth gear; 15. Seventh gear; 16. Eighth gear; 17. Output shaft; 18. One-way bearing; 19. Spring; 20. Electric control board. Detailed implementation manners

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment

[0027] Please refer to Figures 1-9 , the present utility model provides the following technical solutions: A convenient electric actuator, including an upper housing 1, a lower housing 2, and a connecting pipe 3. The upper housing 1 and the lower housing 2 are connected by bolts. The connecting pipe 3 is installed at the bottom of the lower housing 2. A first electric structure, a second electric structure, an electric control board 20, and a manual execution structure are respectively installed in the lower housing 2. The electric control board 20 is connected to the first electric structure and the second electric structure. An output structure is provided between the first electric structure and the second electric structure. The manual execution structure is movably connected to the second electric structure. The electric control board 20 controls any one group of the first electric structure and the second electric structure to start. The manual execution structure includes a third gear 8, a rotating handle 10, a one-way bearing 18, and a spring 19. The third gear 8 is installed on the second electric structure. A connecting body 9 is installed at the upper end of the upper housing 1 and penetrates through the upper housing 1. A groove is provided at the lower end of the connecting body 9. A one-way bearing 18 is provided in the groove. The third gear 8 is connected to the inner ring of the one-way bearing 18. A gasket is provided on the second electric structure. A spring 19 is provided on the gasket. The spring 19 extends to the inner side of the connecting body 9. A rotating handle 10 is installed at the upper end of the connecting body 9. The output structure is connected to the connecting pipe 3.

[0028] In this implementation scheme, the specific working principle is as follows: for this electric actuator, when performing a manual execution switch, press the turning handle 10 downwards, so that the connecting body 9 drives the third gear 8 to move downwards under the action of pressure. Since the third gear 8 and the eighth gear 16 can themselves achieve gear engagement and their rotations are synchronous, when the third gear 8 is pressed down to engage with the eighth gear 16, there will be no collision problem caused by the inability of the third gear 8 and the eighth gear 16 to mesh. When the third gear 8 and the eighth gear 16 form a gear engagement, rotate the turning handle 10. At this time, since the one-way bearing 18 can only rotate in one direction, the rotation direction of the turning handle 10 is the direction in which the one-way bearing 18 cannot rotate. Therefore, it can drive the eighth gear 16 to rotate, thereby driving the rotating shaft 12 to rotate. Thus, the opening or closing inside the connecting pipe 3 can be realized. The above method is relatively convenient and fast in actual operation and can be completed in a short time. Therefore, it solves the problem that the existing electric actuator is not convenient to operate and cannot complete the closing or opening of the valve in a short time when performing manual execution. When the turning handle 10 is released after closing, due to the elastic force of the spring 19 acting on the turning handle 10, the turning handle 10 moves upwards. At this time, the contact and cooperation relationship between the third gear 8 and the eighth gear 16 is reset to the initial state.

[0029] According to the above, in order to prevent the third gear 8 and the eighth gear 16 from rotating out of sync when the turning handle 10 is pressed down, and being unable to achieve a mating relationship during gear engagement, the second electric structure rotates synchronously with the third gear 8, and the second electric structure rotates synchronously with the output structure.

[0030] According to the above, the second electric structure can be specifically referred to Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 8 It can be seen that the second electric structure includes a second motor 5, a first gear 6, and an output shaft 17; the second motor 5 is installed inside the lower housing 2, the output end of the second motor 5 is provided with the output shaft 17, and a second gear 7 and a first gear 6 are sequentially installed on the surface of the output shaft 17 from top to bottom. Among them, both the second gear 7 and the first gear 6 form a gear transmission with the output structure. If the electronic control board 20 controls the second motor 5 to rotate, at this time, the rotation of the rotating shaft 12 is realized through the gear engagement relationship between the first gear 6 and the sixth gear 14. At this time, the output shaft 17 drives the third gear 8 to rotate, but the third gear 8 and the eighth gear 16 are not in a mating relationship. Secondly, due to the function of the one-way bearing 18, the connecting body 9 will not rotate. Secondly, the rotation directions of the first electric structure and the second electric structure are the same. Therefore, it is not necessary to consider the rotation of the turning handle 10 caused by any one group during rotation.

[0031] According to the above, the first electric structure can be specifically referred to Figure 3 、Figure 4 , Figure 5 , Figure 6 , Figure 8 It can be seen that the first electric structure includes the first motor 4 and the fourth gear 11; the first motor 4 is installed inside the lower housing 2 near the right side of the second motor 5, and a fourth gear 11 that forms a gear transmission with the output structure is provided on the output end of the first motor 4. When the electronic control board 20 controls the first motor 4 to start, it can drive the fifth gear 13 through the fourth gear 11 to achieve gear transmission, thereby driving the rotation of the rotating shaft 12. In the initial state, the control board 20 preferentially controls the first motor 4 to start. When the first motor 4 has a line connection failure or damage, the control board 20 will start the second motor 5, which can effectively prevent the valve from not being closed due to a single motor failure during execution.

[0032] Regarding how the output structure realizes the gear cooperation with the first electric structure and the second electric structure, please refer specifically to Figure 5 and Figure 8 It can be seen that the output structure includes a rotating shaft 12, a fifth gear 13, a sixth gear 14, a seventh gear 15, and an eighth gear 16; the rotating shaft 12 is vertically installed inside the lower housing 2, and an eighth gear 16, a seventh gear 15, a sixth gear 14, and a fifth gear 13 are sequentially installed on the surface of the rotating shaft 12 from top to bottom. The rotating shaft 12 passes through the lower housing 2 and is connected to the connecting pipe 3, and the eighth gear 16 forms a gear transmission with the third gear 8, the second gear 7 forms a gear transmission with the seventh gear 15, the first gear 6 forms a gear transmission with the sixth gear 14, and the fifth gear 13 forms a gear transmission with the fourth gear 11.

[0033] Among them, in order to achieve the rapidity of the third gear 8 during reset, please refer specifically to Figure 3 It can be seen that the third gear 8 is initially located above the eighth gear 16. Therefore, as can be seen from the attached drawing, the thickness of the third gear 8 is smaller than that of the eighth gear 16. When the third gear 8 contacts the eighth gear 16, it is not a complete contact. The contact surface is the third gear 8 and the eighth gear 16 with a thickness of one-half to achieve a gear cooperation relationship. Therefore, through the spring 19, the reset operation can be quickly realized, and the third gear 8 and the eighth gear 16 operate synchronously.

[0034] To facilitate the rotation of the rotating shaft 12, please refer specifically to Figure 8 It can be seen that one-way bearings are provided at the inner top of the upper housing 1 and the inner bottom of the lower housing 2, and the inner ring of the one-way bearing is connected to the rotating shaft 12.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A convenient electric actuator, comprising an upper housing (1), a lower housing (2), and a connecting pipe (3). The upper housing (1) is connected to the lower housing (2) by bolts, and the connecting pipe (3) is installed at the bottom of the lower housing (2), characterized in that: Inside the lower housing (2), a first electric structure, a second electric structure, an electronic control board (20), and a manual execution structure are respectively installed. The electronic control board (20) is connected to the first electric structure and the second electric structure. An output structure is provided between the first electric structure and the second electric structure. The manual execution structure is movably connected to the second electric structure. The electronic control board (20) controls any one of the first electric structure and the second electric structure to start. The manual execution structure includes a third gear (8), a turning handle (10), a one-way bearing (18), and a spring (19). The third gear (8) is installed on the second electric structure. A connecting body (9) is installed at the upper end of the upper housing (1) and penetrates through the upper housing (1). A groove is provided at the lower end of the connecting body (9). A one-way bearing (18) is provided in the groove. The third gear (8) is connected to the inner ring of the one-way bearing (18). A gasket is provided on the second electric structure. A spring (19) is provided on the gasket. The spring (19) extends to the inside of the connecting body (9). A turning handle (10) is installed at the upper end of the connecting body (9). The output structure is connected to a connecting pipe (3).

2. The convenient electric actuator according to claim 1, wherein: The second electric structure rotates synchronously with the third gear (8), and the second electric structure rotates synchronously with the output structure.

3. The convenient electric actuator according to claim 2, characterized in that: The second electric structure includes a second motor (5), a first gear (6), and an output shaft (17). The second motor (5) is installed inside the lower housing (2). An output shaft (17) is provided at the output end of the second motor (5). A second gear (7) and a first gear (6) are sequentially installed on the surface of the output shaft (17) from top to bottom. Both the second gear (7) and the first gear (6) form a gear drive with the output structure.

4. The convenient electric actuator according to claim 3, characterized in that: The first electric structure includes a first motor (4) and a fourth gear (11). The first motor (4) is installed inside the lower housing (2) near the right side of the second motor (5). A fourth gear (11) that forms a gear drive with the output structure is provided at the output end of the first motor (4).

5. The convenient electric actuator according to claim 4, characterized in that: The output structure includes a rotating shaft (12), a fifth gear (13), a sixth gear (14), a seventh gear (15), and an eighth gear (16). The rotating shaft (12) is vertically installed inside the lower housing (2). An eighth gear (16), a seventh gear (15), a sixth gear (14), and a fifth gear (13) are sequentially installed on the surface of the rotating shaft (12) from top to bottom. The rotating shaft (12) penetrates through the lower housing (2) and is connected to the connecting pipe (3). The eighth gear (16) and the third gear (8), the second gear (7) and the seventh gear (15), the first gear (6) and the sixth gear (14), and the fifth gear (13) and the fourth gear (11) form a gear drive.

6. The convenient electric actuator according to claim 5, wherein: The third gear (8) is initially located above the eighth gear (16), and the third gear (8) and the eighth gear (16) operate synchronously.

7. A convenient electric actuator according to claim 5, characterized in that: One-way bearings are provided at the inner top of the upper housing (1) and the inner bottom of the lower housing (2). The inner rings of the one-way bearings are connected to the rotating shaft (12).

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