Actuator with manual-automatic integrated mechanical clutch

Abstract

The actuator with the manual-automatic integrated mechanical clutch comprises a shell, the shell is a hollow cavity and comprises a first shell body and a second shell body, and openings of the first shell body and the second shell body are oppositely connected. The bottom of the second shell is connected with a motor and a gear set which are in driving connection. A concave cavity is formed in the side, away from the second shell, of the first shell and connected with an output gear, and the gear set is in driving connection with the output gear. The cavity shaft is movably connected with an output shaft, and the cavity is slidably connected with a rack. An elastic mechanism is arranged on the side, away from the output gear, of the rack, connected to the side wall of the cavity and arranged between the output shaft and the output gear, and the elastic mechanism extrudes the rack so that the rack can be meshed with the output shaft and the output gear at the same time. The automatic clutch device is simple and compact in overall structure, the requirement for miniaturization of the actuator can be met, automatic clutch can be achieved, the actuator is prevented from being damaged, and the service life of the actuator is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of actuators, and in particular relates to an actuator with a manual-automatic mechanical clutch. Background Art

[0002] With the continuous innovation and evolution of technology, smart homes are becoming increasingly popular. To make the control of home appliances and various devices more in line with user needs, the ability of actuators to freely switch between electric and manual control modes has become increasingly critical. Today's consumers are extremely concerned about the spatial adaptability of actuators. However, traditional electromagnetic clutches, due to their complex internal structure and large size, are difficult to achieve compact design under specific torque output requirements, which greatly restricts the miniaturization process of the equipment. In addition, if the door is subjected to external impact during the opening process, the brake mechanism is easily damaged, causing damage to the actuator and shortening its service life.

[0003] Therefore, the above problems need to be solved urgently. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, the utility model provides an actuator with a manual-automatic mechanical clutch. The overall structure is simple and compact, which can meet the miniaturization requirements of the actuator, can automatically clutch, avoid damage to the actuator, and extend the service life of the actuator.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides an actuator with a manual-automatic mechanical clutch, including a shell, which is a hollow cavity. The shell includes a first shell and a second shell, and the first shell and the second shell are relatively connected with each other through openings. A motor and a gear set are connected to the bottom of the second shell, and the motor and the gear set are driven and connected. A concave cavity is provided on the side of the first shell away from the second shell, and the concave cavity is connected to an output gear, and the gear set and the output gear are driven and connected. The concave cavity shaft is movably connected to the output shaft, and the concave cavity is slidably connected to a rack. An elastic mechanism is provided on the side of the rack away from the output gear, and the elastic mechanism is connected to the side wall of the concave cavity. The elastic mechanism is provided between the output shaft and the output gear, and the elastic mechanism squeezes the rack, so that the rack, the output shaft and the output gear are engaged. The utility model drives the rack to move by a motor, thereby driving the output shaft to rotate, thereby driving the door body to open or close. The rack is squeezed and meshed with the output shaft by an elastic mechanism. When the door is subjected to external force, the rack pushes against the force of the elastic mechanism. When the external force exceeds the force applied to the rack by the elastic mechanism, the rack and the output shaft or output gear jump, preventing damage to the actuator and extending the life of the actuator. Furthermore, the utility model uses the rack to drive the output shaft to open the door, resulting in a simple and compact overall structure, meeting the demand for miniaturized actuators.

[0006] Furthermore, in the aforementioned actuator with a manual-automatic mechanical clutch, a rack cavity is provided in the sidewall of the recessed cavity, and an opening is provided on the side of the recessed cavity away from the rack cavity. The ends of the rack are respectively disposed within the rack cavity and the opening, and the rack moves along the rack cavity and the opening. The rack cavity and the opening are larger than the cross-section of the rack, and the rack moves within the rack cavity and the opening, thereby limiting the range of rack movement while ensuring sufficient room for rack movement.

[0007] Furthermore, in the above-mentioned actuator with a manual-automatic mechanical clutch, the elastic mechanism includes a guide column connected to the side wall of the cavity, the guide column is slidably connected to a push block, and the push block abuts against the rack at one end away from the side wall of the cavity. A spring is provided between the push block and the side wall of the cavity, one end of the spring is provided in a countersunk hole provided in the push block, and the spring abuts against the side wall of the cavity at one end away from the push block. The spring applies an elastic force to the push block, and the push block pushes the rack toward the output shaft and output gear, so that the rack, output shaft and output gear are meshed, ensuring that the output shaft has sufficient driving force. At the same time, when the output shaft is stuck, the output gear pushes the rack, thereby compressing the spring, causing the output gear and rack to jump teeth, thereby avoiding damage to the actuator and increasing the service life of the actuator.

[0008] Furthermore, in the aforementioned actuator with a manual-automatic mechanical clutch, a clutch slot is provided at the bottom of the opening, located on the side of the opening away from the output shaft, with its bottom lower than the bottom of the opening. A stopper is provided above the clutch slot to limit the position of the rack. When the door needs to be opened manually, the rack is placed in the clutch slot, separating the rack from the output shaft and allowing the door to open. The stopper limits the rack and prevents it from dislodging from the opening.

[0009] Furthermore, in the above-mentioned actuator with a manual-automatic mechanical clutch, the gear set includes a worm gear, an idler gear, and a planetary gear set, and the worm gear, the idler gear, and the planetary gear set are respectively connected to the second housing. The motor shaft of the motor is connected to a worm, the worm and the worm gear are meshed, and the worm gear is coaxially connected to a transmission gear. The worm gear is driven and connected to the idler gear through the transmission gear, the idler gear is driven and connected to the planetary gear set, and the planetary gear set is driven and connected to the output gear. The transmission method of the worm gear can set a larger transmission ratio. Combined with the application of the planetary gear set, it can further amplify the output torque of the motor to meet the door opening needs and reduce power consumption. In addition, the worm gear is self-locking and can provide a certain static holding force to prevent the door from closing automatically.

[0010] Furthermore, in the aforementioned actuator with a manual-automatic mechanical clutch, the planetary gear set includes an outer ring gear, an inner ring gear, and planetary gears. The inner ring gear is connected to the inner side of the outer ring gear, the outer ring gear shaft is movably connected to the bottom of the second housing, the inner ring gear is connected to the first housing, the center of the bottom of the outer ring gear is connected to a first coaxial gear, the planetary gears are arranged around the first coaxial gear, the planetary gears mesh between the first coaxial gear and the inner ring gear, the planetary gears are connected to a planet carrier, the planet carrier is connected to a second coaxial gear, the second coaxial gear extends out of the first housing, and the second coaxial gear is coaxially driven with the output gear. The planetary gear set has high load-bearing capacity, high transmission efficiency, and a compact structure, which can meet the requirements of miniaturization of the actuator.

[0011] Furthermore, in the aforementioned actuator with a manual-automatic mechanical clutch, a clutch portion is provided on the end of the rack gear near the output shaft, and the clutch portion is located on the side of the rack gear near the clutch slot. When the clutch portion is located in the clutch slot, the rack gear and the output shaft are separated, enabling manual opening of the door, thereby improving the functionality of the actuator.

[0012] Furthermore, in the actuator with a manual-automatic mechanical clutch, a handle is provided at one end of the rack near the output shaft. The user holds the handle and places the clutch portion on the rack into the clutch slot, thereby improving the convenience of operation.

[0013] As can be seen from the above technical solution, the present invention has the following beneficial effects: The present invention provides an actuator with a manual-automatic mechanical clutch, which opens the door body by driving the output shaft through a rack. The overall structure is simple and compact, meeting the demand for miniaturized actuators. When the external force exceeds the thrust applied to the rack by the elastic mechanism, the output gear and rack jump, achieving automatic clutching, preventing damage to the actuator and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of an actuator with a manual-automatic mechanical clutch according to the present invention;

[0015] Figure 2 is a structural schematic diagram of the first shell;

[0016] Figure 3 for Figure 1 A partial enlarged view of

[0017] Figure 4 for Figure 2 A partial enlarged view of

[0018] Figure 5 This is a schematic diagram of the interior of the utility model;

[0019] Figure 6 is an exploded view of the planetary gear set;

[0020] Figure 7 A schematic structural diagram of the rack.

[0021] In the figure: 1. outer shell, 11. first shell, 112. rack cavity, 113. opening, 1131. clutch slot, 1132. limit part, 12. second shell, 2. motor, 21. worm, 3. gear set, 31. worm gear, 32. idler gear, 33. planetary gear set, 331. outer ring gear, 332. inner ring gear, 333. planetary gear, 334. first coaxial gear, 335. planetary carrier, 336. second coaxial gear, 111. concave cavity, 4. rack, 41. clutch part, 42. hand-held part, 5. output shaft, 6. output gear, 7. elastic mechanism, 71. guide column, 72. push block, 73. spring. DETAILED DESCRIPTION

[0022] Example 1

[0023] like Figure 1 The illustrated actuator with a manual-automatic mechanical clutch includes a housing 1, which is a hollow cavity. The housing 1 comprises a first shell 11 and a second shell 12, with openings facing each other. A motor 2 and a gear set 3 are connected to the bottom of the second shell 12, and the motor 2 and the gear set 3 are drivingly connected. A recessed cavity 111 is provided on the side of the first shell 11 facing away from the second shell 12. An output gear 6 is connected to the recessed cavity 111, and the gear set 3 and the output gear 6 are drivingly connected. The output shaft 5 is movably connected to the recessed cavity 111, and a rack 4 is slidably connected to the recessed cavity 111. An elastic mechanism 7 is provided on the side of the rack 4 facing away from the output gear 6. The elastic mechanism 7 is connected to the sidewall of the recessed cavity 111 and disposed between the output shaft 5 and the output gear 6. The elastic mechanism 7 compresses the rack 4, causing the rack 4 to mesh with the output shaft 5 and the output gear 6. In this utility model, the motor 2 drives the rack 4 to move, thereby rotating the output shaft 5, thereby driving the door to open or close. When the rack 4 is squeezed and meshed with the output shaft 5 through the elastic mechanism 7, a flexible connection is achieved. When the door body is subjected to an external force, it pushes the rack 4 to resist the force of the elastic mechanism 7. When the external force is greater than the thrust applied to the rack 4 by the elastic mechanism 7, the rack 3 and the output shaft 5 or the output gear 6 jump teeth to avoid damage to the actuator.

[0024] like Figure 2 The illustrated actuator with a manual-automatic mechanical clutch has a rack cavity 112 defined in the sidewall of a recessed cavity 111. An opening 113 is defined on the side of the recessed cavity 111 away from the rack cavity 112. Rack 4 is positioned at either end within the rack cavity 112 and opening 113, respectively, along which it moves. Rack cavity 112 and opening 113 are larger than the cross-section of rack 4, allowing the rack to move within these two spaces, limiting the space within which rack 3 can move.

[0025] like Figure 3 The actuator with a manual-automatic mechanical clutch shown in FIG. 1 includes an elastic mechanism 7 comprising a guide post 71 connected to the side wall of a cavity 111. A push block 72 is slidably connected to the guide post 71. The end of the push block 72, facing away from the cavity 111, abuts the rack 4. A spring 73 is disposed between the push block 72 and the side wall of the cavity 111. One end of the spring 73 is disposed within a countersunk hole provided in the push block 72. The end of the spring 73, facing away from the push block 72, abuts the side wall of the cavity 111. The spring 73 applies an elastic force to the push block 72, which in turn pushes the rack 4 toward the output shaft 5 and output gear 6, causing them to mesh and ensure sufficient driving force for the output shaft 5. Simultaneously, when the output shaft 5 becomes stuck, the output gear 6 pushes the rack 4, compressing the spring 73, causing the output gear 6 and rack 4 to jump, thus preventing damage to the actuator.

[0026] like Figure 4 The illustrated actuator with a manual-automatic mechanical clutch has a clutch slot 1131 at the bottom of opening 113. Clutch slot 1131 is located on the side of opening 113 away from the output shaft 5, with its bottom lower than the bottom of opening 113. A stopper 1132 is located above clutch slot 1131 to limit the position of rack 4. To manually open the door, rack 4 is placed in clutch slot 1131, separating it from the output shaft 5 and allowing the door to open.

[0027] like Figure 5 In the illustrated actuator with a manual-automatic mechanical clutch, the gear set 3 includes a worm gear 31, an idler gear 32, and a planetary gear set 33. The worm gear 31, the idler gear 32, and the planetary gear set 33 are each axially connected to the second housing 12. The motor shaft of the motor 2 is connected to the worm 21, which meshes with the worm gear 31. The worm gear 31 is coaxially connected to a transmission gear. The worm gear 31 is drivingly connected to the idler gear 32 through the transmission gear. The idler gear 32 is drivingly connected to the planetary gear set 33. The planetary gear set 33 is drivingly connected to the output gear 6.

[0028] like Figure 6 The actuator with a manual-automatic mechanical clutch shown in the figure, the planetary gear set 33 includes an outer ring gear 331, an inner ring gear 332, and planetary gears 333. The inner ring gear 332 is connected to the inner side of the outer ring gear 331, and the outer ring gear 331 is axially movably connected to the bottom of the second housing 12. The inner ring gear 332 is connected to the first housing 11. The bottom center of the outer ring gear 331 is connected to a first coaxial gear 334. The planetary gears 333 are arranged around the first coaxial gear 334. The planetary gears 333 are engaged between the first coaxial gear 334 and the inner ring gear 332. The planetary gears 333 are connected to a planet carrier 335. The planet carrier 335 is connected to a second coaxial gear 336. The second coaxial gear 336 extends out of the first housing 11. The second coaxial gear 336 is coaxially driven and connected to the output gear 6.

[0029] like Figure 7 The illustrated actuator with a manual-automatic mechanical clutch has a clutch portion 41 on the end of the rack 4 near the output shaft 5. Clutch portion 41 is located on the side of the rack 4 near the clutch slot 1131. A handle 42 is also located on the end of the rack 4 near the output shaft 5. The user holds handle 42 and inserts clutch portion 41 on the rack 4 into clutch slot 1131, separating the rack 4 from the output shaft 5 and allowing the door to be opened manually.

[0030] The above embodiments are illustrative and intended to illustrate the technical concepts and features of the present invention so that those skilled in the art can understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An actuator with a manual-automatic mechanical clutch, characterized by: The invention comprises a housing (1), wherein the housing (1) is a hollow cavity, and the housing (1) comprises a first housing (11) and a second housing (12), wherein the first housing (11) and the second housing (12) are connected with each other through their openings; a motor (2) and a gear set (3) are connected to the bottom of the second housing (12), and the motor (2) and the gear set (3) are connected in a driving manner; a concave cavity (111) is provided on a side of the first housing (11) away from the second housing (12), and the concave cavity (111) is connected to an output gear (6), and the gear set (6) is connected to the output gear (6). (3) and the output gear (6) are drivingly connected; the output shaft (5) is movably connected to the concave cavity (111) shaft, and the rack (4) is slidably connected to the concave cavity (111); an elastic mechanism (7) is provided on the side of the rack (4) away from the output gear (6), the elastic mechanism (7) is connected to the side wall of the concave cavity (111), the elastic mechanism (7) is provided between the output shaft (5) and the output gear (6), and the elastic mechanism (7) squeezes the rack (4) to mesh the rack (4) with the output shaft (5) and the output gear (6).

2. The actuator with a manual-automatic mechanical clutch according to claim 1, characterized in that: A rack cavity (112) is provided on the side wall of the concave cavity (111), an opening (113) is provided on a side of the concave cavity (111) away from the rack cavity (112), two ends of the rack (4) are respectively provided in the rack cavity (112) and the opening (113), and the rack (4) moves along the rack cavity (112) and the opening (113).

3. The actuator with a manual-automatic mechanical clutch according to claim 1, characterized in that: The elastic mechanism (7) includes a guide post (71) connected to the side wall of the cavity (111), the guide post (71) is slidably connected to a push block (72), and one end of the push block (72) away from the side wall of the cavity (111) abuts against the rack (4); a spring (73) is provided between the push block (72) and the side wall of the cavity (111), one end of the spring (73) is provided in a countersunk hole provided in the push block (72), and one end of the spring (73) away from the push block (72) abuts against the side wall of the cavity (111).

4. The actuator with a manual-automatic mechanical clutch according to claim 1, characterized in that: A clutch groove (1131) is provided at the bottom of the opening (113), and the clutch groove (1131) is provided on a side of the opening (113) away from the output shaft (5), and the bottom of the clutch groove (1131) is lower than the bottom of the opening (113); a limiting portion (1132) is provided on the upper side of the clutch groove (1131), and the limiting portion (1132) provides a limit for the rack (4).

5. The actuator with a manual-automatic mechanical clutch according to claim 1, characterized in that: The gear set (3) includes a worm gear (31), an idler gear (32), and a planetary gear set (33), wherein the worm gear (31), the idler gear (32), and the planetary gear set (33) are respectively connected to the second housing (12); the motor shaft of the motor (2) is connected to a worm (21), the worm (21) and the worm gear (31) are meshed, the worm gear (31) is coaxially connected to a transmission gear, the worm gear (31) is connected to the idler gear (32) through a driving connection, the idler gear (32) and the planetary gear set (33) are connected to a driving connection, and the planetary gear set (33) and the output gear (6) are connected to a driving connection.

6. The actuator with a manual-automatic mechanical clutch according to claim 5, characterized in that: The planetary gear set (33) includes an outer ring gear (331), an inner ring gear (332), and planetary gears (333). The inner ring gear (332) is connected to the inner side of the outer ring gear (331). The outer ring gear (331) is axially connected to the bottom of the second housing (12). The inner ring gear (332) is connected to the first housing (11). The center of the bottom of the outer ring gear (331) is connected to a first coaxial gear (334). The planetary gears (333) are arranged around the first coaxial gear (334). The planetary gears (333) are meshed between the first coaxial gear (334) and the inner ring gear (332). The planetary gears (333) are connected to a planet carrier (335). The planet carrier (335) is connected to a second coaxial gear (336). The second coaxial gear (336) extends out of the first housing (11). The second coaxial gear (336) and the output gear (6) are coaxially driven.

7. The actuator with a manual-automatic mechanical clutch according to claim 4, characterized in that: A clutch portion (41) is provided at one end of the rack (4) close to the output shaft (5), and the clutch portion (41) is provided on a side of the rack (4) close to the clutch slot (1131); when the clutch portion (41) is placed in the clutch slot (1131), the rack (4) and the output shaft (5) are separated.

8. The actuator with a manual-automatic mechanical clutch according to claim 1, characterized in that: The rack (4) is provided with a hand-held portion (42) at one end close to the output shaft (5).

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