CN218117555U

CN218117555U - Executor and door structure

Info

Publication number: CN218117555U
Application number: CN202220901269.7U
Authority: CN
Inventors: 张体波; 芮正国; 冯雪峰; 唐蓓
Original assignee: Oechsler Plastic Products Taicang Co Ltd
Current assignee: Oechsler Plastic Products Taicang Co Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-12-23
Anticipated expiration: 2032-04-19

Abstract

The utility model relates to an actuator, which comprises a driving piece, an input gear driven by the driving piece, an output gear and a clutch mechanism, wherein the clutch mechanism comprises a clutch support which can rotate around the axis of the input gear, a first planetary gear and a second planetary gear which are connected with the clutch support, and a reset elastic piece with one end connected with the clutch support and the other end fixedly arranged; when the clutch support rotates to a second position, the first planetary gear is meshed with the output gear, and the second planetary gear is separated from the output gear; when the clutch support rotates to a third position, the first planetary gear is disengaged from the output gear, and the second planetary gear is meshed with the output gear; the reset elastic piece gives the elastic force for resetting the clutch support to the first position. A door structure includes an actuator. The utility model realizes the switching of automatic/manual driving; the clutch bracket rotates at a small angle to realize forward and reverse rotation switching; can be placed and installed at any angle.

Description

Executor and door structure

Technical Field

The utility model relates to the technical field of household appliances, concretely relates to executor and door structure.

Background

The household appliance industry develops towards the direction of intellectualization, the requirement of automatic opening and closing of the movable door of the household appliance is provided, but sometimes the situation that the door is not powered or is more convenient to open and close manually is met, the actuator for opening and closing the door is required to be switched between a manual mode and an automatic mode, and the clutch function is solved by a mechanical clutch mechanism adopted in the current solution. However, the mechanical clutch has the disadvantages of high noise, jamming feeling in the clutch during operation, long clutch action time and poor use experience.

A specific actuator structure in the prior art is shown in fig. 1, and the structure of the existing actuator is that a motor 91 is in transmission connection with an input gear 93 arranged through a fixed shaft 92, a planetary gear 94 is meshed with the input gear 93, the planetary gear 94 rotates around the fixed shaft 92 to realize meshing and disengaging with an output gear 95, and a combining process (a process in which power can be transmitted) is as follows: the planetary gear 94 drives the planetary gear 94 to do circular motion under the meshing action of the input gear 93, and realizes meshing with the output gear 95, and then power is transmitted to the output gear 95; off process (output gear 95 free state process): the input gear 93 rotates reversely to drive the planetary gear 94 to rotate reversely around the fixed shaft, so that the planetary gear is separated from the output gear 95 and enters a free state. This kind of structure has more drawback: 1. when the power input end realizes the input of positive and negative rotation, the planetary gear 94 must rotate reversely by a large angle (more than 180 degrees) to the other side of the output 95 gear to be meshed with the other side, and the action time is long; 2. after the action transmission is stopped, the planetary gear 94 and the output gear 95 cannot be automatically separated, the output gear 95 must rotate by a small angle (the angle is more than 1-2 teeth), and enough separation space is formed between the teeth of the planetary gear 94 and the teeth of the output gear 95 to realize the separation of the output gear 95; 3. the function can only be achieved in the horizontal position, when the whole gear system is placed in the vertical position, the planetary gear 94 is on the upper side of the output gear 95, and the disengagement cannot be achieved due to gravity.

There is a need for an actuator device that is inexpensive, relatively simple in construction, and provides reliable clutching.

Disclosure of Invention

The utility model aims at providing an executor can realize its operating condition's manual/automatic mode seamless switching.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

an actuator comprises a driving piece, an input gear, an output gear and a clutch mechanism, wherein the driving piece is provided with an output shaft capable of rotating in a forward direction and a reverse direction, the input gear is in transmission connection with the output shaft of the driving piece, the output gear can be in transmission connection with the input gear through the clutch mechanism, the clutch mechanism comprises a clutch support, a first planetary gear, a second planetary gear and a return elastic piece, the clutch support can rotate around the axis of the input gear, the first planetary gear and the second planetary gear are rotatably connected to the clutch support and meshed with the input gear, one end of the return elastic piece is connected with the clutch support, the other end of the return elastic piece is fixedly arranged, the clutch support is provided with a first position, a second position and a third position,

when the clutch support rotates to a first position, the first planetary gear and the second planetary gear are both disengaged from the output gear; when the clutch support rotates to a second position, the first planetary gear is meshed with the output gear, and the second planetary gear is disengaged from the output gear; when the clutch support rotates to a third position, the first planetary gear is disengaged from the output gear, and the second planetary gear is meshed with the output gear;

the reset elastic piece always gives the clutch support an elastic force for resetting the clutch support to the first position.

Preferably, the clutch support is in its first position when the output shaft of the driver stops rotating;

the output shaft of the driving piece rotates in the positive direction to enable the clutch support to be in the second position;

the output shaft of the driver rotates in reverse to place the clutch carrier in its third position.

Preferably, the separation and reunion support includes rotation portion, first linking arm, second linking arm, the rotation portion rotationally overlaps and is established in input gear's pivot, first linking arm, second linking arm respectively with rotation portion fixed connection, first planetary gear rotationally connects on the first linking arm, second planetary gear rotationally connects on the second linking arm.

Further preferably, the first connecting arm and the second connecting arm extend outward from the rotating portion in a radial direction of the input gear, and an included angle between extending directions of the first connecting arm and the second connecting arm is greater than 90 ° and smaller than 180 °.

Preferably, the rotating portion, the first connecting arm, and the second connecting arm are integrally provided.

Further preferably, the clutch carrier includes a first carrier and a second carrier in a sheet shape, each of the first carrier and the second carrier includes the rotating portion, a first connecting arm, and a second connecting arm, the first carrier and the second carrier are arranged in parallel, and the input gear, the first planetary gear, and the second planetary gear are located therebetween.

Preferably, the first planetary gear and the second planetary gear are positioned on two sides of the axis of the input gear and on two sides of the axis of the output gear at the same time.

Preferably, the thickness of the teeth of the first planetary gear is smaller than the groove width of the tooth grooves of the output gear;

and/or the thickness of the teeth of the second planetary gear is smaller than the groove width of the tooth grooves of the output gear.

Preferably, the output shaft of the driving part is a worm, the actuator further comprises a helical gear and a first transmission gear, the helical gear is meshed with teeth of the worm, the first transmission gear is coaxially arranged with the helical gear, the first transmission gear and the helical gear synchronously rotate, and the input gear is in transmission connection with the first transmission gear;

the actuator further comprises a second transmission gear, the second transmission gear and the input gear are coaxially arranged, the input gear and the second transmission gear synchronously rotate, and the second transmission gear is meshed with the first transmission gear.

The utility model aims at providing a door structure can realize the seamless switching of manual/automatic mode of its switch door.

the utility model provides a door structure, door structure includes door frame, door body passes through the door pivot and rotationally connects on the door frame, door structure still include the executor casing and the executor, the executor casing sets up on the door frame, the executor sets up in the executor casing, the other end of the elastic component that resets with executor casing fixed connection, output gear with the transmission of door pivot is connected.

Preferably, when the output shaft of the driving piece stops rotating, the clutch bracket is in the first position, and the door body can be opened or closed manually;

when the output shaft of the driving piece rotates in the forward direction or the reverse direction, the clutch support is located at the second position or the third position, and the driving piece drives the door body to be opened or closed.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses the clutch support uses with the combination of elastic component that resets for this clutching mechanism can realize the power take off of driving piece port pair output gear end, also can realize that output gear and clutching mechanism break away from the back, keeps output gear's free state, realizes manual function. When the positive and negative rotation is switched in the power transmission process, the planetary gear is provided with two planetary gears which are positioned on two sides of the output gear, and the clutch support rotates at a small angle to realize positive and negative meshing transmission; the planetary gear is automatically reset under the action of the reset elastic piece on the clutch support, and manual or driving piece reverse output is not needed to be separated, so that the clutch mechanism can be placed and installed at any angle.

Drawings

FIG. 1 is a schematic diagram of an actuator in the prior art;

FIG. 2 is a perspective view of the actuator of the present embodiment;

FIG. 3 is a schematic view of the actuator of the present embodiment with the clutch carrier in the first position;

FIG. 4 is a schematic view of the actuator of the present embodiment with the clutch carrier in a second position;

FIG. 5 is a schematic view of the actuator of the present embodiment with the clutch bracket in a third position;

FIG. 6 is a schematic view of the door structure when the driving member is not driven and the door body is closed according to the present embodiment;

FIG. 7 is a schematic view of the door structure when the driving member is not driven and the door body is opened in the present embodiment;

FIG. 8 is a schematic view of the door structure of the present embodiment when the driving member starts to drive the closed door body to open;

FIG. 9 is a schematic view of the door structure when the driving member drives the door body to open in the present embodiment;

fig. 10 is a schematic view of the door structure when the driving member starts to drive the opened door body to close in this embodiment.

In the above drawings: 1. a drive member; 11. an output shaft, a worm; 2. an input gear; 21. a first fixed shaft; 3. an output gear; 31. a second fixed shaft; 32. a gap; 4. a clutch bracket; 41. a rotating part; 42. a first connecting arm; 43. a second connecting arm; 44. a first bracket; 45. a second bracket; 51. a first planetary gear; 52. a second planetary gear; 6. a restoring elastic member; 71. a helical gear; 72. a first transmission gear; 73. a second transmission gear;

81. a door frame; 82. a door body; 83. an actuator housing; 84. a door hinge;

91. a motor; 92. fixing a shaft; 93. an input gear; 94. a planetary gear; 95. an output gear.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 2-5, an actuator can realize the switching between an automatic driving mode and a manual mode, and comprises a driving piece 1, an input gear 2, an output gear 3 and a clutch mechanism. When the clutch mechanism is in transmission connection with the output gear 3, the actuator is in an automatic mode, the driving piece 1 drives the output gear 3 to rotate, the reset elastic piece 6 is connected with the clutch mechanism to control the clutch mechanism to reset, and when the clutch mechanism is disconnected from the output gear 3, the actuator is in a manual mode, and the output gear 3 is manually driven to rotate.

The driving piece 1 is provided with an output shaft 11 which can rotate forward and reversely, and when the output shaft 11 rotates forward and the clutch mechanism is in transmission connection with the output gear 3, the output gear 3 rotates forward; when the output shaft 11 rotates in the reverse direction and the clutch mechanism is in transmission connection with the output gear 3, the output gear 3 rotates in the reverse direction. The drive 1 may be an electric motor, in this embodiment, the drive 1 is a motor, and the output shaft 11 of the drive 1 is a worm 11. When the actuator is used in particular, the driving member 1 is fixedly arranged.

The input gear 2 is in transmission connection with an output shaft 11 of the driving part 1, the input gear 2 is arranged on a first fixed shaft 21 which is fixedly arranged, and the driving part 1 works to drive the input gear 2 to rotate around the first fixed shaft 21. The output gear 3 can be in transmission connection with the input gear 2 through the clutch mechanism, the output gear 3 is arranged on a second fixed shaft 31 which is fixedly arranged, and when the clutch mechanism is in transmission connection with the output gear 3, the driving piece 1 works to drive the output gear 3 to rotate around the second fixed shaft 31. In the present embodiment, the first fixed shaft 21 and the second fixed shaft 31 are arranged in parallel.

The clutch mechanism comprises a clutch support 4, a first planetary gear 51, a second planetary gear 52 and a return elastic piece 6. The clutch support 4 can rotate around the axis of the input gear 2, the rotation of the clutch support 4 and the rotation of the input gear 2 are independent, and in the embodiment, the clutch support 4 is rotatably connected to the first fixed shaft 21. The first planetary gear 51 and the second planetary gear 52 are rotatably connected to the clutch carrier 4 and mesh with the input gear 2, and the first planetary gear 51 and the second planetary gear 52 are rotatable around the input gear 2 while rotating on their own axes. One end of the elastic resetting piece 6 is fixedly connected with the clutch bracket 4, and the other end is fixedly arranged, in the embodiment, the elastic resetting piece 6 is a torsion spring and is wound on the first fixed shaft 21.

The clutch support 4 has a first position, a second position and a third position, as shown in fig. 3, when the clutch support 4 rotates to the first position, the first planetary gear 51 and the second planetary gear 52 are both disengaged from the output gear 3, and the actuator is in a manual mode; as shown in fig. 4, when the clutch carrier 4 rotates to the second position, the first planetary gear 51 is engaged with the output gear 3, the second planetary gear 52 is disengaged from the output gear 3, and the actuator is in the automatic mode; as shown in fig. 5, when the clutch carrier 4 rotates to the third position, the first planetary gear 51 is disengaged from the output gear 3, the second planetary gear 52 is engaged with the output gear 3, and the actuator is in the automatic mode; the elastic reset part 6 always gives the clutch support 4 an elastic force for resetting the clutch support to the first position, namely, when the driving part 1 works, the driving part 1 drives the input gear 2 to overcome the elastic force of the elastic reset part 6 so that the clutch support 4 is in the second position or the third position, and when the driving part 1 stops working, the elastic reset part 6 enables the clutch support 4 to reset to the first position. Specifically, the output shaft 11 of the driving member 1 stops rotating, the input gear 2 is not driven and cannot drive the first planetary gear 51 or the second planetary gear 52 to be meshed with the output gear 3, and the reset elastic member 6 enables the clutch support 4 to be in the first position; the output shaft 11 of the driving piece 1 rotates positively, the output gear 3 is driven to rotate positively, and the first planetary gear 51 is driven to rotate around the input gear 2 by the meshing force of the output gear 3 and the first planetary gear 51 so that the clutch support 4 is in the second position; the output shaft 11 of the driving member 1 rotates reversely, the output gear 3 is driven to rotate reversely, and the second planetary gear 52 is driven to rotate around the input gear 2 by the meshing force of the output gear 3 and the second planetary gear 52, so that the clutch support 4 is located at the third position.

The clutch bracket 4 includes a rotating portion 41, a first connecting arm 42, and a second connecting arm 43. The rotating portion 41 is rotatably sleeved on the rotating shaft (i.e. the first fixed shaft 21) of the input gear 2, the first connecting arm 42 and the second connecting arm 43 are respectively and fixedly connected with the rotating portion 41, the first planetary gear 51 is rotatably connected to the first connecting arm 42, and the second planetary gear 52 is rotatably connected to the second connecting arm 43. When the driving member 1 works, the input gear 2 rotates to drive the first planetary gear 51 and the second planetary gear 52 to rotate around the input gear 2, and further the first connecting arm 42 and the second connecting arm 43 drive the rotating part 41 to rotate around the first fixed shaft 21, so that the clutch bracket 4 enters the second position or the third position; when the driving member 1 does not work, the elastic return element 6 drives the rotating portion 41 to rotate around the first fixed shaft 21, and further drives the first planetary gear 51 and the second planetary gear 52 to rotate around the input gear 2 through the first connecting arm 42 and the second connecting arm 43, so that the clutch bracket 4 enters the first position. Preferably, the rotating portion 41, the first connecting arm 42, and the second connecting arm 43 are integrally provided to keep the clutch bracket 4 stable in rotation.

As shown in fig. 3 to 5, in the present embodiment, the first connecting arm 42 and the second connecting arm 43 extend from the rotating portion 41 to the radial direction of the input gear 2 and are both biased to the output gear 3, and the included angle between the extending directions of the first connecting arm 42 and the second connecting arm 43 is greater than 90 ° and smaller than 180 °, that is, the extending shapes of the first connecting arm 42, the rotating portion 41 and the second connecting arm 43 are approximately "V" shaped fork arms, and the openings of the "V" shapes thereof face the output gear 3. By coordinating the opening size of the "V" formed by the first connecting arm 42 and the second connecting arm 43 and the distances between the first planetary gear 51, the second planetary gear 52 and the output gear 3, the angle of rotation of the clutch carrier 4 when moving from the second position to the first position is 20 ° or less, the angle of rotation of the clutch carrier 4 when moving from the third position to the first position is 20 ° or less, and in practical applications, the rotation angle required for the switching position can be further reduced by adjusting the opening size, the lengths of the first connecting arm 42 and the second connecting arm 43, the positional relationship between the first planetary gear 51, the second planetary gear 52 and the output gear 3, and the like.

As shown in fig. 2, in the present embodiment, the clutch bracket 4 includes a first bracket 44 and a second bracket 45 in sheet form, and each of the first bracket 44 and the second bracket 45 includes a rotating portion 41, a first connecting arm 42, and a second connecting arm 43, and the first bracket 44 and the second bracket 45 are identical in shape for manufacturing convenience. The first and

second carriers

44, 45 are disposed in parallel, and the input gear 2, the first planetary gear 51, and the second planetary gear 52 are interposed therebetween to restrict the movement of the input gear 2, the first planetary gear 51, and the second planetary gear 52 in the axial direction, and the clutch mechanism can be tightly engaged to form a whole to reduce the wobbling of the clutch carrier 2 when rotating.

As shown in fig. 3 to 5, with respect to the arrangement of the first and second

planetary gears

51 and 52, specifically, the first and second

planetary gears

51 and 52 are located on both sides of the axis of the input gear 2 and on both sides of the axis of the output gear 3, respectively, and the first and second

planetary gears

51 and 52 are located between the input gear 2 and the output gear 3, that is, the first and second

planetary gears

51 and 52 are located on both sides of the plane between the first and second

fixed shafts

21 and 31, respectively. In the present embodiment, the axes of the first and second

planetary gears

51 and 52 are parallel to the first and second

fixed shafts

21 and 31.

In the present embodiment, the thickness of the teeth of the first planetary gear 51 is smaller than the width of the tooth grooves of the output gear 3, the thickness of the teeth of the second planetary gear 52 is smaller than the width of the tooth grooves of the output gear 3, that is, when the teeth of the first planetary gear 51 and the second planetary gear 52 are meshed with the output gear 3, and the teeth of the two planetary gears are meshed in the tooth grooves of the output gear 3, a part of the gap 32 is left in the tooth grooves of the output gear 3, and when the first planetary gear 51 or the second planetary gear 52 rotates around the input gear 2 and is disengaged from the output gear 3, the teeth of the first planetary gear 51 and the second planetary gear 52 can move out of the output gear 3 by using the gap 32 without driving the output gear 3 to follow the rotation. Specifically, the ratio of the thickness of the teeth of the first planetary gear 51 to the groove width of the tooth grooves of the output gear 3 may be 1:2, the thickness of the teeth of the second planetary gear 52 and the groove width of the tooth grooves of the output gear 3 may be 1:2, that is, the gap 32 corresponds to the thickness of the teeth of the first planetary gear 51 and the thickness of the teeth of the second planetary gear 52, but the present invention is not limited thereto. And when the clutch carrier 4 is in the second position, only one tooth of the first planetary gear 51 is meshed with the output gear 3; when the clutch carrier 4 is in the third position, only one tooth of the second planetary gear 52 meshes with the output gear 3.

As shown in fig. 2, the actuator further comprises a bevel gear 71, a first transmission gear 72 and a second transmission gear 73, which are used for driving and connecting the driving member 1 and the input gear 2. The bevel gear 71 is in transmission connection with the output shaft 11 of the driver 1, that is, the bevel gear 71 is meshed with the teeth of the worm 11, the first transmission gear 72 is coaxially arranged with the bevel gear 71, and the first transmission gear 72 rotates synchronously with the bevel gear 71, the second transmission gear 73 is coaxially arranged with the input gear 2, and the input gear 2 rotates synchronously with the second transmission gear 73, and the second transmission gear 73 is meshed with the first transmission gear 72. Therefore, the output shaft 11 of the driving member 1 drives the bevel gear 71 to rotate, the first transmission gear 72 rotates coaxially and synchronously with the bevel gear 71, the second transmission gear 73 rotates driven by the first transmission gear 72, and the input gear 2 rotates coaxially and synchronously with the second transmission gear 73.

The working principle of the driving member 1 is specifically explained as follows:

when the driving member 1 does not output power to the outside, the input gear 2 is not driven to rotate, so that the first planetary gear 51 and the second planetary gear 52 are not subjected to the rotational thrust of the input gear 2, the clutch bracket 4 is located at the first position under the action of the return elastic member 6, the first planetary gear 51 and the second planetary gear 52 are both separated from the output gear 3, and the output gear 3 rotates under the manual action, and cannot be influenced by the resistance of other gears and cannot influence other gears. When the driving member 1 outputs power, if the output shaft 11 of the driving member 1 rotates in the forward direction, the input gear 2 is driven to rotate in the forward direction, the input gear 2 drives the first planetary gear 51 and the second planetary gear 52 to rotate in the forward direction and simultaneously drives the first planetary gear 51 and the second planetary gear 52 to rotate around the forward circumference of the input gear 2, and then the first planetary gear 51 is meshed with the output gear 3 and drives the output gear 3 to rotate in the forward direction; if the output shaft 11 of the driving member 1 rotates in the reverse direction, the input gear 2 is driven to rotate in the reverse direction, and the input gear 2 drives the first planetary gear 51 and the second planetary gear 52 to rotate in the reverse direction and simultaneously drives them to rotate around the input gear 2 in the reverse direction, so that the first planetary gear 51 is engaged with the output gear 3 and drives the output gear 3 to rotate in the reverse direction. If the output shaft 11 of the driving part 1 stops rotating after rotating forward or reversely, the clutch bracket 4 is driven to reset to the first position under the action of the reset elastic part 6; if the direct reverse rotation is carried out after the forward rotation, the first planetary gear 51 is changed from being meshed with the output gear 3 to being disengaged, and the second planetary gear 52 is changed from being disengaged with the output gear 3 to being meshed; when the rotation is performed in the forward direction directly after the reverse rotation, the first planetary gear 51 is disengaged from the output gear 3 to be engaged, and the second planetary gear 52 is engaged with the output gear 3 to be disengaged.

As shown in fig. 6-10, a door structure for seamless switching between manual/automatic modes of opening and closing the door can be used in home appliances. The door structure comprises a door frame 81, a door body 82, an actuator shell 83 and an actuator, wherein the door body 82 is rotatably connected to the door frame 81 through a door rotating shaft 84, the actuator shell 83 is arranged on the door frame 81, the actuator is arranged in the actuator shell 83, the output gear 3 is in transmission connection with the door rotating shaft 84, and the opening and closing of the door body 82 can be automatically or manually switched through the actuator. Specifically, the door rotating shaft 84 is the second fixed shaft 31, the output gear 3 is fixedly disposed on the door rotating shaft 84, the output gear 3 rotates to drive the door rotating shaft 84 to rotate and drive the door body 82 to rotate, the door body 82 also rotates to drive the door rotating shaft 84 to rotate and also drive the output gear 3 to rotate, one end of the elastic return element 6 is fixedly connected to the clutch support 4, and the other end is fixedly connected to the actuator housing 83. The door rotation shaft 84 can adopt a non-cylindrical structure, and the output gear 3 is tightly sleeved on the door rotation shaft 84, and the door rotation shaft 84 is tightly inserted into the door body 82, so that the rotation fixation between the door rotation shaft 84 and the output gear 3 and the rotation fixation between the door rotation shaft 84 and the door body 82 can be realized.

For opening and closing the door body 82, as shown in fig. 6 and 7, when the output shaft 11 of the driver 1 stops rotating, the clutch bracket 4 is in the first position, and the door body 82 can be opened or closed manually; as shown in fig. 8-10, when the output shaft 11 of the driving member 1 rotates in the forward direction or in the reverse direction, the clutch bracket 4 is in the second position or the third position, and the driving member 1 drives the door body 82 to open or close.

The working principle of the door structure is explained in detail as follows:

as shown in fig. 6 and 7, when the driving member 1 is not driven, both the first planetary gear 51 and the second planetary gear 52 are disengaged from the output gear 3 by the return elastic member 6, and at this time, the door body 82 is opened or closed by a manual control method. As shown in fig. 8 and 9, when the driving member 1 is driven in the forward direction, the first planetary gear 51 is engaged with the output gear 3 by the circular motion of the input gear 2, the second planetary gear 52 is kept disengaged from the output gear 3, and the forward rotation of the first planetary gear 51 further drives the output gear 3 to rotate in the forward direction, so that the automatic opening operation of the door body 82 is realized. As shown in fig. 10, when the driving member 1 rotates in the reverse direction, the second planetary gear 52 moves circularly under the action of the input gear 2 to engage with the output gear 3, the first planetary gear 51 keeps disengaged from the output gear 3, and the reverse rotation of the second planetary gear 52 further drives the output gear 3 to rotate in the reverse direction, so as to realize the automatic closing action of the door body 82.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

Claims

1. An actuator, comprising a driving member, an input gear, an output gear, and a clutch mechanism, wherein the driving member has an output shaft capable of rotating in a forward direction and a reverse direction, the input gear is in transmission connection with the output shaft of the driving member, and the output gear is in transmission connection with the input gear through the clutch mechanism, characterized in that: the clutch mechanism comprises a clutch support, a first planetary gear, a second planetary gear and a reset elastic piece, the clutch support can rotate around the axis of the input gear, the first planetary gear and the second planetary gear are rotatably connected to the clutch support and meshed with the input gear, one end of the reset elastic piece is connected with the clutch support, the other end of the reset elastic piece is fixedly arranged, the clutch support is provided with a first position, a second position and a third position, and when the clutch support rotates to the first position, the first planetary gear and the second planetary gear are both separated from the output gear; when the clutch support rotates to a second position, the first planetary gear is meshed with the output gear, and the second planetary gear is disengaged from the output gear; when the clutch support rotates to a third position, the first planetary gear is disengaged from the output gear, and the second planetary gear is meshed with the output gear;

2. The actuator of claim 1, wherein: the output shaft of the driving piece stops rotating to enable the clutch support to be in the first position;

the clutch bracket is positioned at the second position by the positive rotation of the output shaft of the driving piece;

3. The actuator of claim 1, wherein: the separation and reunion support includes rotation portion, first linking arm, second linking arm, rotation portion rotationally overlaps and establishes in input gear's pivot, first linking arm, second linking arm respectively with rotation portion fixed connection, first planetary gear rotationally connects on the first linking arm, second planetary gear rotationally connects on the second linking arm.

4. The actuator of claim 3, wherein: the first connecting arm and the second connecting arm extend outwards from the rotating portion in the radial direction of the input gear, and an included angle between the extending directions of the first connecting arm and the second connecting arm is larger than 90 degrees and smaller than 180 degrees.

5. The actuator of claim 3, wherein: the rotating part, the first connecting arm and the second connecting arm are integrally arranged.

6. The actuator of claim 1, wherein: the first planetary gear and the second planetary gear are simultaneously positioned on two sides of the axis of the input gear and two sides of the axis of the output gear.

7. The actuator of claim 1, wherein: the thickness of the teeth of the first planetary gear is smaller than the groove width of the tooth grooves of the output gear;

8. The actuator of claim 1, wherein: the output shaft of the driving piece is a worm, the actuator further comprises a helical gear and a first transmission gear, the helical gear is meshed with teeth of the worm, the first transmission gear and the helical gear are coaxially arranged, the first transmission gear and the helical gear synchronously rotate, and the input gear is in transmission connection with the first transmission gear;

9. The utility model provides a door structure, door structure includes door frame, door body passes through the door pivot and rotationally connects on the door frame its characterized in that: the door structure further comprises an actuator shell and an actuator according to any one of claims 1 to 8, wherein the actuator shell is arranged on the door frame, the actuator is arranged in the actuator shell, the other end of the return elastic piece is fixedly connected with the actuator shell, and the output gear is in transmission connection with the door rotating shaft.

10. The door structure of claim 9, wherein: when the output shaft of the driving piece stops rotating, the clutch bracket is positioned at the first position and can be used for manually opening or closing the door body;

when the output shaft of the driving piece rotates forwards or reversely, the clutch support is located at the second position or the third position, and the driving piece drives the door body to be opened or closed.