A power switching output mechanism

Abstract

This utility model discloses a power switching output mechanism. The key technical point is that the mechanism includes a power unit, an input shaft with its central axis coincident, a first output component, and a second output component. The input shaft passes through at least the first output component, and a switching component is driven onto the input shaft. The power unit drives the switching component to move along the axial direction of the input shaft, so that the switching component engages with either the first or second output component. By using a single input shaft to input driving force, the power unit drives the switching component to move. By controlling the engagement position of the switching component, the input shaft drives either the first or second output component to switch power output, thus optimizing power output.

Description

Technical Field

[0001] This utility model relates to the field of electric curtain technology, and more specifically to a power switching output mechanism. Background Technology

[0002] Electric curtains have a drive structure to control the opening and closing movement of the curtain fabric. For example, an electric curtain is disclosed in publication number CN218844197U. Some electric curtains are equipped with a cord winder, which has an electric drive structure to drive the cord winder to rotate and wind up and unwind the cord. For example, an intelligent curtain lifting device and method is disclosed in publication number CN119498660A.

[0003] The existing curtain opening and closing drive mechanism and the rope winding mechanism are driven by independent drive structures, which have technical problems such as complex wiring of multiple drive structures and high overall cost. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a power switching output mechanism to overcome the above-mentioned defects in the existing technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a power switching output mechanism, comprising a power unit and an input shaft with a central axis coinciding with the input shaft, a first output component and a second output component, wherein the input shaft passes through at least the first output component, and a switching component is drivenly connected to the input shaft, and the power unit is used to drive the switching component to move along the axial direction of the input shaft, so that the switching component engages with the first output component or the second output component.

[0006] As a further improvement of this utility model, it also includes a frame, wherein the first output member and the second output member are both rotatably connected to the frame.

[0007] As a further improvement of this utility model, the power unit includes a motor and a screw connected to the output end of the motor, and a moving part is slidably connected to the upper limit of the frame, and the moving part is movably connected to the switching part.

[0008] As a further improvement of this utility model, the switching component is provided with an annular groove, and at least part of the moving component is located in the annular groove.

[0009] As a further improvement of this utility model, at least one first plane is formed on the switching member, and a second plane corresponding to the first plane is formed on the input shaft.

[0010] As a further improvement of this utility model, the switching component is provided with a through hole, the first plane is formed at the through hole, and the switching component is provided with a spline hole on the side facing the second output component, the spline hole communicating with the through hole.

[0011] As a further improvement of this utility model, the first output component is a bevel gear.

[0012] As a further improvement of this utility model, a spline groove is provided at one end of the second output component facing the input shaft, and a connecting component is meshed and slidably connected in the spline groove, and a compression spring is provided between the connecting component and the bottom wall of the spline groove.

[0013] As a further improvement of this utility model, the second output component is provided with an oblong hole, and a positioning pin is fixedly connected to the connecting component, the positioning pin passing through the oblong hole.

[0014] As a further improvement of this utility model, an output gear is fixedly connected to the second output component.

[0015] The beneficial effects of this invention are as follows: This invention uses a single input shaft to input driving force, and the power unit drives the switching component to move. By controlling the meshing transmission position of the switching component, the input shaft drives either the first or second output component to switch power output, optimizing power output and reducing costs. The power switching output mechanism centrally controls the power unit, reducing the overall space required. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the power switching output mechanism of this utility model;

[0017] Figure 2 This is a top view schematic diagram of the power switching output mechanism of this utility model;

[0018] Figure 3 This is a cross-sectional view of the power switching output mechanism hidden in the frame in this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the first output component in this utility model;

[0020] Figure 5 This is an assembly diagram of the switching component and the power unit in this utility model;

[0021] Figure 6 This is an assembly diagram of the input shaft and switching component in this utility model;

[0022] Figure 7 This is an exploded view of the input shaft and switching component in this utility model;

[0023] Reference numerals: Input shaft 10; Second plane 11; First output component 20; Transmission groove 21; Second bevel gear 22; Power unit 30; Moving component 31; Moving wall 311; Sliding wall 312; Snap-fit ​​structure 313; Screw 32; Motor 33; Switching component 40; Splined shaft 41; Ring groove 42; Splined hole 43; Through hole 44; First plane 45; Second output component 50; Splined groove 51; Output gear 52; Compression spring 53; Connecting component 60; Waist-shaped hole 61; Positioning pin 62; Frame 70. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] Reference Figures 1 to 4 As shown, this embodiment of a power switching output mechanism includes a power unit 30, an input shaft 10 with its central axis coinciding with the input shaft 10, a first output member 20, and a second output member 50. The input shaft 10 passes through at least the first output member 20, and a switching member 40 is drivenly connected to the input shaft 10. The power unit 30 is used to drive the switching member 40 to move along the axial direction of the input shaft 10, so that the switching member 40 engages with the first output member 20 or the second output member 50.

[0026] The first output component 20 and the second output component 50 serve as two power output structures of the power switching output mechanism. The input shaft 10 is connected to the power structure and can drive the first output component 20 or the second output component 50.

[0027] The switching element 40 is controlled by the power unit 30 to move. For example, when the switching element 40 moves and engages with the first output element 20, the input shaft 10, the switching element 40, and the first output element 20 form a power transmission path, and the second output element 50 is in a non-powered state. When the switching element 40 moves and engages with the second output element 50, the input shaft 10, the switching element 40, and the second output element 50 form a power transmission path, and the first output element 20 is in a non-powered state.

[0028] The input shaft 10, the first output component 20, and the second output component 50 are coaxially arranged. The switching component 40 can move along the axial direction of the input shaft 10 to switch the power output position, and the switching stability is high.

[0029] Therefore, the power switching output mechanism uses a single input shaft 10 to input driving force. The power unit 30 drives the switching element 40 to move. By controlling the meshing transmission position of the switching element 40, the input shaft 10 drives either the first output element 20 or the second output element 50 to switch power outputs, optimizing power output and reducing costs. The power switching output mechanism centrally controls the power unit 30, reducing the overall space required.

[0030] In one embodiment, the power switching output mechanism further includes a frame 70, on which both the first output member 20 and the second output member 50 are rotatably connected. The frame 70 is a stable frame with spaced walls. The first output member 20 is partially inserted into one of the walls, and the two are rotatably connected. The first output member 20 and the wall can be directly connected; alternatively, the first output member 20 and the wall can be connected via bearings.

[0031] The second output component 50 is rotatably mounted on the frame 70 and spaced apart from the first output component 20, with a stable mounting position between the second output component 50 and the first output component 20. The switching component 40 slides on the input shaft 10 and is located within the frame 70, maintaining a stable engagement position between the first output component 20 and the second output component 50 during the engagement process, and ensuring the flexibility of the transmission between the first output component 20 and the second output component 50.

[0032] Reference Figure 3 and Figure 4 As shown, the power unit 30 drives the switching member 40 to slide. The power unit 30 includes a motor 33 and a screw 32 connected to the output end of the motor 33. A moving member 31 is slidably connected to the upper limit of the frame 70, and the moving member 31 is movably connected to the switching member 40. The motor 33 is mounted on the frame 70, and the screw 32 is rotatably connected to the frame 70 and connected to the output end of the motor 33.

[0033] The movable part 31 is slidably limited to the frame 70 to prevent the movable part 31 from deflecting, maintain linear sliding, and improve sliding stability.

[0034] Optionally, the frame 70 has a switching cavity, and the two sides of the moving part 31 slide against the cavity wall of the switching cavity, while the switching part 40 moves within the switching cavity. The screw 32 and the moving part 31 are helically connected, and the motor 33 drives the screw 32 to rotate, so the moving part 31 moves back and forth linearly along the screw 32.

[0035] Preferably, the centerline of the screw 32 is arranged parallel to the input shaft 10.

[0036] Reference Figure 6As shown, preferably, the movable member 31 includes a movable wall 311 and sliding walls 312 distributed on both sides of the movable wall 311, forming an approximately "I" or "U" shaped structure. The sliding walls 312 slide against the switching cavity to improve sliding smoothness. The sliding walls 312 are provided with threaded holes, and the screw 32 is helically connected to the threaded holes. The switching member 40 and the movable wall 311 are rotatably connected to drive the switching member 40 to move.

[0037] In one embodiment, the switching member 40 has an annular groove 42, and at least a portion of the moving member 31 is located within the annular groove 42. The annular groove 42 is a circular groove structure, which can be formed by a recess in the surface of the switching member 40; or, the annular groove 42 is a space formed by two spaced-apart ribs protruding from the surface of the switching member 40.

[0038] At least part of the moving part 31 is located in the annular groove 42. During the movement of the moving part 31, it abuts against the corresponding side wall of the annular groove 42, thereby driving the switching part 40 to move.

[0039] Preferably, the movable component 31 is provided with a snap-fit ​​structure 313, which can be configured as a slot formed by the indentation of the end face of the movable wall 311; or, the snap-fit ​​structure 313 can be configured as two claws formed by the protrusion of the end face of the movable wall 311. The snap-fit ​​structure 313 adopts an open structure, and part of the snap-fit ​​structure 313 is snapped into the annular groove 42, which can achieve rapid assembly.

[0040] Reference Figure 7 As shown, the switching member 40 can slide along the axial direction of the input shaft 10 and can also be drivenly connected to the input shaft 10. The switching member 40 has at least one first plane 45, and the input shaft 10 has a second plane 11 corresponding to the first plane 45. The first plane 45 and the second plane 11 can be positioned in contact with each other and can also be drivenly connected.

[0041] The switching component 40 has a through hole 44, and a first plane 45 is formed at the through hole 44. That is, a first plane 45 is provided on a portion of the hole wall of the through hole 44. The number of first planes 45 can be set to one or more. When the switching component 40 is provided with multiple first planes 45, the assembly difficulty of the switching component 40 and the input shaft 10 can be reduced, and the initial connection angle of the transmission can be adjusted.

[0042] Reference Figure 4 and Figure 5As shown, one end of the switching member 40 is engaged with the first output member 20. The first output member 20 has a recessed transmission groove 21 on the side facing the switching member 40. The transmission groove 21 can be a spline groove 51 or a square hole groove. A spline shaft 41 protrudes from the end of the switching member 40 facing the first output member 20. The spline shaft 41 and the transmission groove 21 are inserted and engaged to allow the switching member 40 and the transmission groove 21 to be connected and transmitted, so that the power of the input shaft 10 can be transmitted to the first output member 20 through the switching member 40.

[0043] Optionally, the first output component 20 is a bevel gear, and the frame 70 may also rotatably mount a second bevel gear 22. The first output component 20 and the second bevel gear 22 employ bevel gear meshing transmission, and the rotation center of the first output component 20 and the rotation center of the second bevel gear 22 intersect. During meshing, the first output component 20 and the second bevel gear 22 have a slight rotational clearance. During the insertion of the switching component 40 into the first output component 20, the first output component 20 can be finely rotated to achieve an aligned connection.

[0044] Reference Figure 3 and Figure 4 As shown, the other end of the switching member 40 is engaged with the second output member 50. The switching member 40 has a spline hole 43 on the side facing the second output member 50, and the spline hole 43 communicates with the through hole 44. The spline hole 43 is recessed from the end of the switching member 40 and is coaxially arranged with the through hole 44. The second output member 50 and the spline hole 43 are inserted and engaged for transmission connection.

[0045] In this embodiment, the switching component 40 and the second output component 50 are directly connected by plug-in transmission, which can form a direct transmission.

[0046] In one embodiment, the second output member 50 has a spline groove 51 at one end facing the input shaft 10. A connector 60 is engaged and slidably connected within the spline groove 51, and a compression spring 53 is provided between the connector 60 and the bottom wall of the spline groove 51. The connector 60 and the spline groove 51 are slidably connected, and the compression spring 53 can provide the elastic preload required for the connector 60 to extend and return to its original position.

[0047] The connector 60 extends elastically under the force of the compression spring 53. When the spline of the connector 60 and the spline hole 43 of the switching piece 40 coincide, they are inserted into each other. When the spline of the connector 60 and the spline hole 43 of the switching piece 40 do not coincide, the connector 60 and the switching piece 40 experience a slight impact. The connector 60 then overcomes the elastic force and compresses, causing the chamfered portion of the spline hole 43 to press against and rotate with the connector 60 until they are aligned. The connector 60 then inserts into the spline hole 43, maintaining smooth docking.

[0048] The connector 60 is slidably connected to the second output member 50, and the second output member 50 limits the sliding range of the connector 60. The second output member 50 has an oblong hole 61, and a positioning pin 62 is fixedly connected to the connector 60, passing through the oblong hole 61. The oblong hole 61 intersects and communicates with the spline groove 51. The oblong hole 61 is an elongated hole structure to limit the maximum compression and extension of the connector 60 to the spline groove 51 and the maximum length extending out of the second output member 50.

[0049] The positioning pin 62 is inserted into the fixing connector 60 and confined in the waist-shaped hole 61, and can slide within a preset range without disengaging from the second output member 50.

[0050] Furthermore, an output gear 52 is fixedly connected to the second output member 50. The output gear 52 is used to transmit the power output by the second output member 50 to the actuator or reduction mechanism to realize the corresponding action and function.

[0051] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A power switching output mechanism, characterized in that: It includes a power unit (30), an input shaft (10) with its central axis coincident, a first output member (20) and a second output member (50). The input shaft (10) passes through at least the first output member (20). A switching member (40) is driven on the input shaft (10). The power unit (30) is used to drive the switching member (40) to move along the axial direction of the input shaft (10) so that the switching member (40) engages with the first output member (20) or the second output member (50).

2. The power switching output mechanism according to claim 1, characterized in that: It also includes a frame (70), on which the first output component (20) and the second output component (50) are rotatably connected.

3. The power switching output mechanism according to claim 2, characterized in that: The power unit (30) includes a motor (33) and a screw (32) connected to the output end of the motor (33). The frame (70) is slidably connected to a moving part (31) at its upper limit. The moving part (31) is movably connected to the switching part (40).

4. The power switching output mechanism according to claim 3, characterized in that: The switching component (40) has an annular groove (42), and at least part of the moving component (31) is located in the annular groove (42).

5. The power switching output mechanism according to claim 1, characterized in that: At least one first plane (45) is formed on the switching member (40), and a second plane (11) corresponding to the first plane (45) is formed on the input shaft (10).

6. The power switching output mechanism according to claim 5, characterized in that: The switching component (40) has a through hole (44), the first plane (45) is formed at the through hole (44), and the switching component (40) has a spline hole (43) on the side facing the second output component (50), and the spline hole (43) is connected to the through hole (44).

7. The power switching output mechanism according to claim 1, characterized in that: The first output component (20) is a bevel gear.

8. The power switching output mechanism according to claim 1, characterized in that: The second output component (50) has a spline groove (51) at one end facing the input shaft (10). A connector (60) is meshed and slidably connected in the spline groove (51). A compression spring (53) is provided between the connector (60) and the bottom wall of the spline groove (51).

9. A power switching output mechanism according to claim 8, characterized in that: The second output component (50) has an oblong hole (61), and a positioning pin (62) is fixedly connected to the connector (60), the positioning pin (62) passing through the oblong hole (61).

10. A power switching output mechanism according to claim 1, characterized in that: An output gear (52) is fixedly connected to the second output component (50).

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