Electric clothes hanger

Abstract

The utility model discloses an electric clothes hanger which comprises a main machine, the main machine comprises an actuating unit and a torque output component, the torque output component is driven by deceleration torque provided by the actuating unit to rotate, the actuating unit internally comprises a motor and a deceleration unit, the deceleration unit comprises a worm and worm gear mechanism and a planetary reducer, and the worm and worm gear mechanism is in transmission connection with the motor. A worm gear of the worm and worm gear mechanism, the planetary reducer and the torque output component rotate around a first axis; the clothes hanger comprises a suspension arm with a pivoting part and a clothes hanger rod attached to the suspension arm, the pivoting part is pivoted to the main machine to form a second axis, and the torque output component is in transmission connection with the pivoting part and used for controlling the suspension arm to overturn and lift around the second axis. The electric clothes hanger has the advantage of solving the problem that the length of a main machine of an existing electric clothes hanger is too large. The torque output component and the brake unit do not change in the length direction, the requirement for the space in the length direction of the main engine is reduced, and the length size of the main engine is shortened compared with the prior art.

Description

Technical Field

[0001] This utility model relates to the field of lifting clothes racks, specifically to electric clothes racks. Background Technology

[0002] With the continuous development of modern life and the improvement of people's quality of life, the requirements for household storage and clothing hanging are also getting higher and higher. Traditional clothes racks can no longer meet people's needs for storage and hanging. Therefore, electric flip clothes racks have emerged as a new type of home furnishing product.

[0003] The main unit of an existing electric clothes hanger contains a motor, a linear telescopic component, and a curved arm within its housing. The clothes hanger rod is positioned between the curved arms of two flipping power components. The linear telescopic component is connected to the motor via a drive mechanism. The motor drives the curved arms to rotate through the linear telescopic component, causing the clothes hanger rod to swing back and forth. The linear telescopic component can employ a screw and nut coupling structure. In the above structure, due to the use of a linear telescopic component, a relatively long space is required in the length direction of the housing. Furthermore, due to the use of a curved arm structure, the linear telescopic component needs to be positioned off-center from the rotation center of the curved arm, which also results in an excessively large width dimension of the housing. Thus, whether the main unit is set vertically or horizontally, it reduces the range of wardrobe space that the electric clothes hanger can adapt to. Utility Model Content

[0004] The purpose of this invention is to provide an electric clothes hanger that can effectively solve the problem of excessively long main unit length in existing electric clothes hangers.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] An electric clothes hanger includes a main unit, which includes an actuation unit and a torque output component. The torque output component is driven to rotate by a reduction torque provided by the actuation unit. The actuation unit includes a motor and a reduction unit. The reduction unit includes a worm gear mechanism and a planetary reducer. The worm gear mechanism is connected to the motor. The worm gear, planetary reducer, and torque output component of the worm gear mechanism rotate around a first axis.

[0007] A clothes hanger includes a boom with a pivot and a hanger rod attached to the boom. The pivot is pivotally connected to a main unit to form a second axis. A torque output component is driven to the pivot to control the boom to rotate and lift around the second axis.

[0008] In the aforementioned electric clothes hanger, the main unit includes a housing that houses the actuation unit and the torque output component. The angle between the axis of the motor and the axis of the housing along its length is acute, and the projection of the motor's center of gravity onto a plane perpendicular to the length axis of the housing lies within the projection of the reduction unit onto that plane. Since the motor is connected to the planetary reducer via a worm gear mechanism, the motor is tilted to fully utilize the space within the housing and shorten the length of the housing.

[0009] In the aforementioned electric clothes hanger, the length axis of the housing is arranged vertically, and the motor is located below the reduction unit. Since the torque output component needs to drive the hanger to rotate and lift, the hanger generates a relatively large gravitational torque. Because the torque output component rotates coaxially with the planetary reducer, it is generally mounted and fixed on the electric clothes hanger carrier at the position corresponding to the planetary reducer. This creates a lever between the motor and its mounting position. Arranging the length axis of the housing in the opposite direction (vertical) shortens the lever arm of the motor's gravity, thereby reducing the impact of the gravitational torque generated by the motor on the stability of the main unit's operation. Positioning the motor below the reduction unit prevents the motor from affecting the connection between the torque output component and the hanger.

[0010] In the aforementioned electric clothes hanger, the line connecting the center of gravity of the motor and the center of gravity of the reduction unit is parallel to the axis along the length of the housing. This arrangement allows the motor to utilize the space along the width of the housing as much as possible, and when the housing is vertically mounted, it keeps the center of gravity of the main unit of the electric clothes hanger stable, which is more conducive to the installation and fixation of the main unit.

[0011] In the aforementioned electric clothes hanger, the actuation unit further includes a non-rotatable centering shaft. The worm gear, planetary reducer, and torque output component are coaxially arranged by the centering shaft, and the centerline of the centering shaft defines the first axis. The centering shaft provides a reference for the coaxiality of the worm gear, planetary reducer, and torque output component, allowing them to rotate stably around the first axis, thereby ensuring stable power transmission during operation of the actuation unit and torque output component.

[0012] In the aforementioned electric clothes hanger, the worm gear mechanism incorporates a built-in self-locking structure. This self-locking structure includes at least one of the following: the helical teeth of the worm and the teeth of the worm wheel form a one-way frictional self-locking mechanism, allowing the worm to drive the worm wheel while preventing the worm wheel from driving the worm; a friction ring is fitted onto the non-meshing section of the worm, which engages with the worm when it experiences a reverse rotation tendency due to the load torque from the clothes hanger, thus implementing one-way self-locking; this self-locking structure allows the clothes hanger to be suspended at any position during the flipping and lifting process. By utilizing the self-locking structure to stop the clothes hanger at any position during the flipping and lifting process, stepless control of the hanger's position during this process is achieved, allowing users to position the hanger at the optimal location for loading and unloading clothing as needed.

[0013] In the aforementioned electric clothes hanger, the planetary reducer includes at least two coaxially connected planetary gear trains. The sun gear and worm gear of the first planetary gear train are coaxially driven, and the planetary cage of the last planetary gear train is coaxially driven with the torque output component, or the planetary cage of the last planetary gear train serves as the torque output component. The two-stage planetary reducer can achieve a high transmission ratio, and the connection arrangement of the first and last planetary gear trains makes the overall internal structure of the main unit more compact.

[0014] In the aforementioned electric clothes hanger, the first axis and the second axis coincide. Regardless of how the hanger flips or rises / falls, the lever arm of the actuating torque remains essentially constant, thus providing the hanger with a stable actuating torque. This ensures the hanger's stability during lifting and lowering, reducing instability caused by lever arm variations. The coincident axes simplify the design of the electric clothes hanger, making the mechanical connection between the torque output component and the hanger more direct and efficient. When the user operates the hanger, because the lever arm is constant, the same expected force output by the torque output component will result in the same hanger movement, improving the consistency and predictability of operation.

[0015] In the aforementioned electric clothes hanger, the actuation unit includes a reduction gearbox housing the reduction unit, and the gear ring of the planetary reducer forms part of the reduction gearbox. The reduction gearbox protects the planetary reducer, making it a single unit, facilitating installation and maintenance. Furthermore, the fact that the gear ring of the planetary reducer forms part of the reduction gearbox further simplifies the overall size and reduces the volume occupied by the actuation unit.

[0016] In the aforementioned electric clothes hanger, the torque output component has a centering hole through which a first axis passes. A centering seat is provided on the housing, and the centering seat is axially embedded in the centering hole, with a first radial bearing disposed between them. A second radial bearing is disposed between the worm wheel of the worm gear mechanism and the reduction gearbox. Both the torque output component and the worm wheel are located outside the reduction gearbox. To ensure stable rotation of the torque output component around the first axis, a first radial bearing is provided between the centering hole of the torque output component and the centering seat of the housing. The reduction gearbox is generally fixedly connected to the housing; therefore, to ensure stable rotation of the worm wheel around the first axis, a second radial bearing is provided between the worm wheel and the reduction gearbox.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] By employing a worm gear mechanism rotating around a first axis, a planetary reducer, and a torque output component, with the torque output component driving the pivot of the boom to rotate around a second axis, the clothes hanger rod's rotational lifting and lowering is achieved, solving the problem of excessively long main unit length in current electric clothes hangers. Because this solution uses a rotary drive to rotate and lift the clothes hanger, instead of the linear telescopic components found in traditional electric clothes hanger drive structures, the torque output component and braking unit do not experience any changes in length during the rotational lifting and lowering process. This reduces the space requirement in the main unit's length direction, allowing for a shorter main unit length compared to existing technologies. Furthermore, the use of rotary transmission improves transmission efficiency compared to systems using linear telescopic components. The planetary reducer, as the reduction unit, lowers the output speed, enabling more precise control of the clothes hanger's rotational lifting and lowering position. Additionally, the planetary reducer can output greater torque, increasing the clothes hanger's load-bearing capacity. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the electric clothes hanger of this utility model in use;

[0020] Figure 2 This is a schematic diagram of the structure of the electric clothes hanger of this utility model;

[0021] Figure 3 The explosion of the host in this utility model Figure 1 ;

[0022] Figure 4 For the explosion of the main unit and boom in this utility model Figure 1 ;

[0023] Figure 5 This is a front view of the main unit and the boom in the first position in this utility model;

[0024] Figure 6 This is a rear view of the connection between the main unit and the boom in this utility model;

[0025] Figure 7 The explosion of the host in this utility model Figure 2 ;

[0026] Figure 8 For the explosion of the main unit and boom in this utility model Figure 2 ;

[0027] Figure 9 This is an exploded view of the main unit in this utility model;

[0028] Figure 10 This is an exploded view of the main unit and the load-bearing component in this utility model;

[0029] Figure 11A schematic diagram of the structure of the torque transmission component in this utility model when it is ready to be inserted into the load-bearing component;

[0030] Figure 12 This is a schematic diagram of the structure of the torque transmission component after it is inserted into the load-bearing component in this utility model;

[0031] Figure 13 This is a perspective view of the load-bearing component in this utility model;

[0032] Figure 14 This is a cross-sectional view of the host unit in this utility model;

[0033] Figure 15 This is a sectional view of the connection between the boom and the clothes hanger rod in this utility model;

[0034] Figure 16 The explosion of the corner component and the rotating connector in this utility model Figure 1 ;

[0035] Figure 17 The explosion of the corner component and the rotating connector in this utility model Figure 2 ;

[0036] Figure 18 This is a front view of the main unit and the boom in the second position in this utility model.

[0037] Figure 19 This is a schematic diagram of the structure of the boom encountering resistance during its tilting and descent in this utility model;

[0038] Figure 20 This is a schematic diagram of the structure of the boom after a power outage during its tilting and lowering in this utility model, showing the boom being manually pushed back to the first position.

[0039] The attached figures are labeled as follows:

[0040] Main unit 100, actuation unit 110, motor 111, reduction unit 112, planetary reducer 1121, worm gear 1122, worm 1123, friction ring 1124, planetary gear train 1125, sun gear 1126, planetary cage 1127, centering shaft 113, reduction gearbox 114, second fixed part 1141, torque transmission component 115, torque transmission rod 1151, flange 1152, first fixed part 1153, positioning part 1154, torque output component 120, support body 121, positioning ring 122, centering hole 123, housing 130, through hole 131, cavity 132, centering seat 133, first radial bearing 140, second radial bearing 150;

[0041] 210 boom, 211 pivot, 2111 first guide groove, 2112 positioning hole, 2113 fixing groove, 212 connecting part, 220 clothes hanger rod;

[0042] Torque limiting clutch 300, preload element 310, transmission pin 320, transmission groove 330;

[0043] Hall sensor 410, magnetic component 420;

[0044] 500 load-bearing component, 510 load-bearing groove, 511 abutment part, 512 receiving part;

[0045] Metal clothes hanger 600;

[0046] The components include: a third radial bearing 710, a first mating part 720, a first mating shaft 721, a second mating shaft 722, a first axial limiting surface 723, a second mating part 730, a second axial limiting surface 731, a connecting hole 740, a second positioning part 741, a first fixing part 750, a shielding part 760, a corner part 770, and an insertion hole 771.

[0047] Cabinet size: 800. Detailed Implementation

[0048] An electric clothes hanger includes a main unit 100, which includes an actuation unit 110 and a torque output component 120. The torque output component 120 is driven to rotate by a reduction torque provided by the actuation unit 110. The actuation unit 110 includes a motor 111 and a reduction unit 112. The reduction unit 112 includes a worm gear mechanism and a planetary reducer 1121. The worm gear mechanism is drive-connected to the motor 111. The worm gear, planetary reducer 1121, and torque output component 120 rotate about a first axis L1. The clothes hanger includes a boom 210 with a pivot 211 and a hanger rod attached to the boom 210. The pivot 211 is pivotally connected to the main unit 100 to form a second axis L2. The torque output component 120 is drive-connected to the pivot 211 to control the boom 210 to rotate and rise about the second axis L2. Embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings.

[0049] By employing a worm gear mechanism with a worm wheel rotating around a first axis L1, a planetary reducer 1121, and a torque output component 120, and with the torque output component 120 driving the pivot 211 of the boom 210 to rotate around a second axis L2, the rotation and lifting of the clothes hanger rod is achieved, solving the problem of excessive length of the main unit 100 in current electric clothes hangers. Since this solution uses a rotary drive to drive the clothes hanger's rotation and lifting, and does not use the linear telescopic components found in traditional electric clothes hanger drive structures, the torque output component 120 and the braking unit do not experience any changes in length during the rotation and lifting process. This reduces the space requirement in the length direction of the main unit 100, allowing for a shorter length compared to existing technologies. Furthermore, the use of rotary transmission improves transmission efficiency compared to systems using linear telescopic components. The planetary reducer 1121, as the reduction unit 112, reduces the output speed, thereby allowing for more precise control of the clothes hanger's rotation and lifting position. The planetary reducer 1121 can also output a larger torque, increasing the load-bearing capacity of the clothes hanger.

[0050] The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0051] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] Example 1:

[0055] See Figures 1 to 8 This is one embodiment of the electric clothes hanger of the present invention. The electric clothes hanger includes a main unit 100 and clothes hangers mounted on the main unit 100. In this embodiment, there are two main units 100, which are respectively fixedly mounted on two opposite side walls of the wardrobe. The clothes hanger includes a hanging arm 210 and a clothes hanger rod 220. Each main unit 100 is connected to one hanging arm 210, and the clothes hanger rod 220 is connected between the two hanging arms 210. The main unit 100 controls the two hanging arms 210 to rotate and rise synchronously, thereby driving the clothes hanger rod 220 to rotate and rise. Clothes are hung on the clothes hanger rod 220. When it is necessary to remove the clothes, the main unit 100 controls the hanging arm 210 to rotate downward to the designated position, so that the user can easily remove the clothes on the clothes hanger rod 220. After use, the main unit 100 drives the hanging arm 210 to rotate upward, so that the clothes hanger rod 220 carries the clothes back to the storage position in the wardrobe.

[0056] The main unit 100 includes an actuation unit 110 and a torque output component 120. The actuation unit 110 is mainly used to provide actuation force. The torque output component 120 is driven by the deceleration torque provided by the actuation unit 110 to rotate around the first axis L1. A support body 121 is set on the torque output component 120 off the first axis L1. That is, the torque output component 120 generates torque through the rotation driven by the actuation unit 110 and outputs the torque through the support body 121. The actuation unit 110 needs to provide deceleration torque, which can improve control accuracy, avoid the hanger's flipping and lifting speed being too fast, and accurately control the hanger's stopping position. The flipping and lifting can be divided into two processes: flipping down and flipping up. Flipping down means that the hanger moves to the outside of the cabinet and simultaneously decreases in height, with a trajectory that is arc-shaped. Flipping up is the opposite of flipping down, where the hanger moves upward and simultaneously increases in height, with a trajectory that is also arc-shaped.

[0057] The boom 210 is provided with a pivot part 211, which is pivotally connected to the main unit 100 to form a second axis L2. The clothes hanger can rotate and rise around the second axis L2. The part of the pivot part 211 that deviates from the second axis L2 is freely supported by the support body 121. The free support is relative to the existing electric clothes hanger. The power part and the boom 210 are connected through a shaft hole. If the clothes hanger rod 220 of the existing electric clothes hanger encounters obstruction during rotation and descent, the actuation unit 110 in the main unit 100 will also stop operating and be damaged. At the same time, after the clothes hanger is obstructed during rotation and descent, the actuation unit 110 will continue to output actuating torque to the clothes hanger, causing compression on a third party and causing mechanical damage for the third time. In this embodiment, the portion of the pivot 211 that is off-axis from the second axis L2 is freely supported by the support body 121. This means that the support body 121 lifts the pivot 211 upwards and does not restrict the pivot 211 in the upward rotation direction of the boom 210. During the descent of the clothes hanger, if the clothes hanger is obstructed, the pivot 211 will disengage from the support body 121. This disengagement means that the support body 121 will no longer generate actuating torque on the pivot 211. Therefore, it can protect the actuation unit 110 from damage and avoid mechanical damage to third parties, thus playing a role in preventing pinching.

[0058] The above structure causes the hanger to flip and descend in response to gravitational torque when the torque output component 120 outputs an actuating torque in the first direction, and the hanger can be operably rotated in the opposite second direction to separate from the support body 121 during the flipping and descending process in the first direction. Figure 5 As shown, the first direction is the downward rotation direction of the boom 210, i.e., clockwise, and the second direction is the upward rotation direction of the boom 210, i.e., counterclockwise. When the hanger rod 220 needs to rotate downward, the actuation unit 110 moves, generating an actuating force on the pivot 211 through the torque output component 120. At this time, the actuating torque on the hanger is less than the gravitational torque generated by the hanger and the clothes it hangs. Therefore, under the influence of the gravitational torque, the hanger will flip and descend along the first direction. The speed at which the hanger flips and descends is determined by the difference between the gravitational torque and the actuating torque. The larger the difference, the faster the hanger flips and descends. Therefore, the speed at which the hanger flips and descends can be controlled by the actuation unit 110. During the process of the hanger flipping and descending, since the support body 121 only supports the pivot part 211, the hanger is obstructed at this time. The part of the pivot part 211 that was originally supported by the support body 121 will separate from the support body 121, which means that the hanger will stop rotating and flip down, while the torque output component 120 continues to move. The actuation unit 110 will not stop working due to the resistance generated by the hanger being obstructed, thus protecting the main unit 100.

[0059] like Figures 4 to 6As shown, further, the pivot portion 211 is provided with an arc-shaped first guide groove 2111 around the second axis L2. The support body 121 is slidably guided in the first guide groove 2111. During the process of the hanger flipping and descending, the support body 121 freely supports one end of the first guide groove 2111. By setting the first guide groove 2111, a defined sliding path is provided for the support body 121, and the support body 121 is slidably guided in the first guide groove 2111, avoiding the situation where the support body 121 detaches from the pivot portion 211 during use. Moreover, the first guide groove 2111 is an arc-shaped guide groove set around the second axis L2, and the rotation of the pivot portion 211 in the second direction is also a flip around the second axis L2. Therefore, after being subjected to external force during the process of the hanger flipping and descending, the support body 121 will slide in the first guide groove 2111, thereby realizing the reverse separation of the support body 121 from the pivot portion 211. And one end of the first guide groove 2111 serves as the part that freely supports the support body 121, such as... Figure 5 As shown, the first direction is clockwise. The right support 121 is freely supported by the top of the right first guide groove 2111, and the left support 121 is supported by the bottom of the left first guide groove 2111. When the hanger flips down, the support 121 generates a counterclockwise actuating torque. When the hanger is obstructed from descending, the support 121 will continue to rotate along the first guide groove 2111 in the first direction, thereby separating the support 121 from the pivot 211. Since the support body 121 is generally made into a component that protrudes towards the pivot, such as being made into a column or block shape, if the pivot 211 also has a similar protruding component to the support body 121, which cooperates with the support body 121 and is freely supported by the support body 121, then the force of the support body 121 on the pivot 211 will be entirely applied to the protruding component on the pivot 211. This will cause huge stress at the root of the component, which will reduce the ability of the pivot 211 to withstand the actuating torque. However, by opening a first guide groove 2111 on the pivot 211 to cooperate with the support body 121, the above-mentioned stress concentration can be avoided, thereby increasing the ability of the pivot 211 to withstand the actuating torque.

[0060] like Figure 4 , Figure 5As shown, further, the pivot portion 211 is disc-shaped, which can reduce its axial thickness and thus reduce the demand for axial space. The center of the pivot portion 211 is pivotally connected to the host 100. The first guide groove 2111 can be a blind groove or a through groove opened towards the support body 121. In this embodiment, the first guide groove 2111 is a through groove, which extends from one axial side of the pivot portion 211 to the other axial side. The support body 121 extends into the first guide groove 2111 in a direction parallel to the first axis L1. Under the premise of achieving free support, this allows the pivot portion 211 and the torque output component 120 to be as close as possible, reducing the demand for axial space after the two are combined. This is advantageous for the internal layout of the host 100. The host 100 can therefore be made thinner and lighter, or the host 100 can have more space inside for other components or functions.

[0061] Furthermore, the first guide groove 2111 extends axially from the pivot 211, meaning the support 121 protrudes beyond the torque output component 120. This increases the contact area between the support 121 and the first guide groove 2111, reducing the strength requirements for the materials of the support 121 and the pivot 211, and effectively preventing the support 121 from slipping out of the first guide groove 2111. The support 121 can also be made into a columnar structure, such as a cylinder. Correspondingly, the end of the first guide groove 2111 supported by the support 121 is also arc-shaped. This not only allows for a larger contact area with the first guide groove 2111 during the hanger's flipping and descent, but also prevents jamming when the hanger is obstructed. This allows the torque output component 120 to continue to rotate smoothly relative to the pivot 211.

[0062] In addition to the connection structure between the pivot 211 and the support 121 described above, an arc-shaped second guide groove can also be provided on the torque output component 120 around the first axis L1. A guide pin extends axially from the portion of the pivot 211 that deviates from the second axis L2. The guide pin is slidably guided in the second guide groove, and one end of the second guide groove constitutes the support 121. This solution uses a similar combination of the second guide groove and the guide pin as in the aforementioned embodiments, except that the guide groove is located on the torque output component 120. The effect of this solution is essentially the same as that of the solutions in the aforementioned embodiments.

[0063] like Figure 4 , Figure 5As shown, in this embodiment, the hanger rotates and rises between a first position and a second position lower than the first position around the second axis L2. That is, the horizontal height of the hanger in the first position is higher than the horizontal height of the second position. The main unit 100 drives the hanger to rotate back and forth between the first and second positions, achieving the rotation and rising / falling motion. The first position is generally the storage position of the electric hanger, meaning that in this position, the hanger is entirely inside the wardrobe. The second position is the hanger position for convenient access to clothing, which the user can set according to their needs. The direction of rotation from the first position to the second position is defined as the first direction, which is... Figure 5 The clockwise direction in the middle; the direction of rotation from the second position to the first position is defined as the second direction, that is... Figure 5 The direction is counterclockwise. The above definition prevents the clothes hanger from flipping from the first position to the second position in a counterclockwise direction around the second axis L2. This flipping method is not applicable in the scenario of a motorized clothes hanger carrier that is open on one side. In other words, the above definition allows the motorized clothes hanger to be used in a scenario such as a wardrobe that is open on one side. During the flipping and lifting process of the clothes hanger, the support body 121 continuously maintains the supporting state of the pivot part 211, and continuously controls the speed of the flipping and lifting of the clothes hanger.

[0064] When the hanger is in the first position, it is under the influence of gravity and tends to rotate towards the second position along the first direction. The torque output component 120 outputs a second-direction actuating torque to the hanger through the support body 121 to drive the hanger to rotate towards the first position along the second direction. That is, when the hanger is in the first position, the center of gravity of the hanger will generate a gravitational torque relative to the second axis L2. If the boom 210 is only under the influence of gravity at this time, the hanger will rotate from the first position to the second position along the first direction. Therefore, the torque output component 120 outputs a second-direction actuating torque to the hanger through the support body 121. By controlling the magnitude of the actuating torque, the movement and position of the hanger can be controlled. For example, when the actuating torque is equal in magnitude and opposite in direction to the gravitational torque of the hanger, the hanger will be in a stopped state; if the actuating torque is greater than the gravitational torque, the hanger can be driven to rotate along the second direction; if the actuating torque is less than the gravitational torque, the hanger will rotate along the first direction under the drive of the gravitational torque. The speed at which the hanger flips and descends is controlled by the magnitude of the actuating torque.

[0065] Furthermore, since users typically open the wardrobe door from the front to retrieve clothes, to ensure the hangers only rotate in the direction the wardrobe door opens, the position of the hanger's center of gravity needs to be limited. Figure 5In the two-dimensional orthogonal coordinate system constructed with the second axis L2 as the origin, the center of gravity of the hanger in the first position is located in the first quadrant, and the center of gravity of the hanger in the second position is located in one of the first quadrant, the fourth quadrant, or the positive X-axis. The goal is to ensure that the weight of the hanger always generates a gravitational torque around the second axis L2, thus maintaining a tendency for the hanger to move towards the second position. When the actuating torque output by the torque output component 120 to the hanger in the second direction through the support body 121 is less than the hanger's gravitational torque, the hanger can immediately achieve a flipping and lowering action without requiring an initial torque. The greater the angle between the hanger's center of gravity and the positive X-axis, the stronger the tendency for the hanger to move towards the second position, and the greater the actuating torque required by the torque output component 120 to keep the hanger in the first position. Therefore, the angle between the hanger's center of gravity and the positive X-axis is generally set to approximately 88°.

[0066] To better control the rotation trajectory of the torque output component 120 and the pivot 211, reduce the design difficulty of both, and minimize the relative displacement between the support 121 and the pivot 211 during the hanger's flipping and lifting process, the first axis L1 and the second axis L2 are aligned. During the hanger's flipping and lifting process, the lever arm of the actuating force will not change. Therefore, the support position of the support 121 on the torque output component 120 on the pivot 211 remains unchanged, and the actuating force has a constant actuating force arm, so the magnitude of the actuating torque can be easily obtained. Since the hanger's flipping and lifting trajectory is an arc, the change in gravitational torque can also be easily obtained. In this way, the speed of the hanger's flipping and lifting can be precisely controlled by controlling the magnitude of the actuating force, such as achieving a constant speed for the hanger to flip and lift, or adjusting the speed of the hanger's flipping and lifting according to a set rate.

[0067] In this embodiment, to achieve the coincidence of the first axis L1 and the second axis L2, it means that the first axis L1 of the torque output component and the second axis L2 of the hanger pivot are the same axis. During the hanger flipping process, the distance from the part of the pivot 211 that is freely supported by the support body 121 to this axis remains basically unchanged. No matter how the hanger flips and rises, the lever arm of the actuating torque remains basically constant. The hanger thus obtains a stable actuating torque, and the stability of the hanger during the rising and falling process is guaranteed, reducing the instability factors caused by the change of lever arm. The coincidence of the axes simplifies the design of the electric hanger, making the mechanical connection between the torque output component 120 and the hanger more direct and efficient. When the user operates the hanger, since the lever arm is constant, the same expected force output by the torque output component 120 will lead to the same hanger movement, improving the consistency and predictability of the operation.

[0068] Furthermore, such as Figure 4 , Figure 8As shown, the torque output component 120 and the pivot 211 are fitted with a shaft hole. Specifically, a positioning ring 122 is provided on the torque output component 120 around the first axis L1, and a positioning hole 2112 is provided on the pivot 211. The positioning ring 122 is fitted with the positioning hole 2112 for centering and rotational support of the pivot 211. This arrangement can increase the contact area between the pivot 211 and the main unit 100, making it more stable during the clothes hanger flipping and lifting process. A torque limiting clutch 300 is connected between the positioning ring 122 and the pivot 211. The torque limiting clutch 300 keeps the pivot 211 and the positioning ring 122 rotating synchronously under a predetermined torque. Through the torque limiting clutch 300, the positioning ring 122 and the pivot 211 rotate synchronously under the predetermined torque. Therefore, even if the first position of the hanger is in a vertical state or slightly deviates from the positive Y-axis and is located in the second quadrant, the torque output component 120 can use the torque limiting clutch 300 to drive the hanger to flip and descend from the first position to the second position. During the flipping and descending process of the hanger, if it encounters an obstacle, the obstacle will generate a resistance torque on the hanger. When the resistance torque is large enough, it will exceed the predetermined torque of the torque limiting clutch 300. At this time, the torque limiting clutch 300 will switch to the disengaged state, that is, the pivot 211 will disengage from the positioning ring 122, thereby realizing the anti-pinch function.

[0069] In actual use, installation errors of the main unit 100 are inevitable, causing the hanger to lack the gravitational torque necessary to flip and descend from the first direction to the second position. For example, the hanger's center of gravity may be located in the second quadrant or on the positive Y-axis. The center of gravity of the hanger on the Y-axis is also the critical position of the hanger's gravitational torque. At this time, the hanger's gravity passes vertically through the second axis L2, and the hanger's gravitational torque is zero. In this case, the torque limiting clutch 300 can be used to make the positioning ring 122 on the torque output component 120 drive the pivot 211 to rotate, so that the hanger passes the critical position of zero gravitational torque, allowing the hanger's gravitational torque to drive the hanger to flip and descend from the first direction to the second position again. Moreover, the torque limiting clutch 300 will not affect the original cooperation structure between the support 121 and the pivot 211. The torque generated when the hanger is obstructed can make the torque limiting clutch 300 disengage, disconnecting the power transmission between the pivot 211 and the positioning ring 122, protecting the main unit 100 and preventing mechanical damage to third parties caused by the power when the hanger is obstructed.

[0070] Specifically, the torque limiting clutch 300 includes a preload member 310, a drive pin 320, and a drive groove 330. One of the pivot portion 211 and the positioning ring 122 is provided with the anti-adhesive preload member 310 and the drive pin 320, and the other is provided with the drive groove 330. The drive pin 320 is preloaded by the preload member 310 and engaged in the drive groove 330. In this embodiment, the transmission groove 330 is provided on the positioning ring 122, and the pivot part 211 has a fixing groove 2113. The pre-tightening member 310 abuts against the inner wall of the fixing groove 2113 and the transmission pin 320. The transmission pin 320 is slidably disposed in the fixing groove 2113. The fixing groove 2113 has an opening at one end facing the transmission groove 330 so that the transmission pin 320 can partially pass through the fixing groove 2113 and extend into the transmission groove 330. The pre-tightening member 310 applies a pre-tightening force to the transmission pin 320 in the direction of the transmission groove 330. Therefore, under normal transmission conditions, part of the transmission pin 320 is located in the transmission groove 330 and part is located in the fixing groove 2113, which serves to drive the positioning ring 122 and the pivot part 211 to rotate synchronously. The contact surface between the transmission pin 320 and the transmission groove 330 is not arranged radially along the positioning ring 122. Instead, they are in inclined or arc-shaped contact. When the hanger is obstructed, a large resistance torque is generated. The force exerted by the inner wall of the transmission groove 330 on the transmission pin 320 will cause the transmission pin 320 to overcome the preload of the preload member 310 and exit the transmission groove 330. In this way, the positioning ring 122 and the pivot 211 are separated.

[0071] Furthermore, in some special circumstances, such as a power outage after the hanger has moved to the second position, the user still wants to push the hanger back to the first position to close the cabinet door. Although applying force to the hanger can separate the transmission pin 320 and transmission groove 330 of the torque limiting clutch 300, allowing the user to manually push the hanger back to the first position, the support body 121 cannot generate an actuating torque on the pivot 211 at this time. The hanger, under the influence of its own gravity torque, cannot remain in the first position. After the user removes the manual support, the hanger will still flip to the second position, preventing the cabinet door from closing. Figure 4 , Figure 20As shown, to solve the above problems, the torque limiting clutch 300 includes at least two circumferentially spaced transmission grooves 330. When the hanger flips and descends, the transmission pin 320 engages one of the transmission grooves 330, allowing the hanger to be operably rotated in a second direction and separated from the support body 121 in the opposite direction. The transmission pin 320 then engages the other transmission groove 330 in the second direction. That is, during normal operation of the electric hanger, the transmission pin 320 engages with transmission groove a, causing the hanger to flip and descend. If the main unit 100 experiences a power outage, the hanger can be manually pushed back from the second position to the first position, inserting the transmission pin 320 into transmission groove b, thus fixing the hanger in the first position. After power is restored, the hanger can be manually flipped and descended to the second position, allowing the transmission pin 320 to re-insert into transmission groove a, and then the main unit 100 can drive the hanger back to the first position. Of course, depending on the angle at which the hanger needs to be fixed, the transmission grooves 330 can be placed in many different positions. The torque limiting clutch 300 can be provided in more than one set. For example, in this embodiment, the torque limiting clutch 300 is provided in two sets to ensure that the force between the positioning ring 122 and the pivot 211 is even as much as possible.

[0072] Although the actuation unit 110 and torque output component 120 can continue to move without damage during the hanger's flipping and descent, the actuation unit 110 cannot be kept running indefinitely and needs to be stopped promptly. Therefore, as Figure 3 As shown, the electric clothes hanger also includes a controller and a detection unit. The detection unit detects the clothes hanger's flipping and lifting process and can trigger an obstruction signal when the clothes hanger rotates in a second direction during its first flipping and lowering process. The controller is configured to control the actuation unit 110 to stop or reverse based on the obstruction signal. That is, the detection unit detects whether the state of the clothes hanger's flipping and lifting is consistent with the operating state of the actuation unit 110. For example, if the actuation unit 110 is still running but the clothes hanger has stopped running, the detection unit sends a signal to the controller after detecting this situation, and the controller then controls the actuation unit 110 to immediately stop running or reverse its operation.

[0073] There are many detection units, such as pulse encoders and grating rulers. Considering practicality and reliability, the detection unit in this embodiment includes a Hall sensor 410 and a magnetic component 420. The Hall sensor 410 is fixed inside the host 100, and the magnetic component 420 is installed on the pivot 211. The process of the hanger flipping and descending around the second axis L2 can be continuously detected by the Hall sensor 410. Therefore, once the hanger encounters an obstacle and stops moving, the Hall sensor 410 can sense the operating status of the magnetic component 420 and send a signal, which will quickly send an action command to the actuation unit 110 through the controller. For example, during the process of the hanger flipping and descending, the magnetic field generated by the magnetic component 420 sensed by the Hall sensor 410 becomes stronger and stronger, thus judging that the process of the hanger flipping and descending is normal; if the Hall sensor 410 senses that the magnetic field generated by the magnetic component 420 remains unchanged or becomes weaker and weaker during the process of the hanger flipping and descending, it means that the hanger has encountered an obstacle and stopped or is moving in the second direction. The Hall sensor 410 will immediately send a signal to the controller, and the controller will send a stop or reverse operation command to the actuation unit 110.

[0074] When the above plan is implemented, if Figure 5 As shown, when a user needs to retrieve or place clothing, pressing the control button on the main unit 100 activates the actuation unit 110, causing the support body 121 on the torque output component 120 to rotate in the first direction (clockwise). As the support body 121 rotates in the first direction, the pivot part 211, under the influence of the hanger's gravitational torque, will rotate along with the support body 121 in the first direction, achieving the hanger's flipping and descent. During this process, the speed of the hanger's flipping and descent can be controlled by the rotational speed control of the actuation unit 110; that is, by adjusting the actuating torque of the support body 121 on the pivot part 211, the descent speed of the boom 210 is controlled. Furthermore, the speed of descent can be controlled by a Hall sensor. The 410 sensor detects the position of the magnetic component 420. When the pivot 211 rotates to a specified angle, that is, when the boom 210 descends to a specified height, the Hall sensor 410 sends a signal to the controller. The controller controls the actuation unit 110 to stop operating. The actuation unit 110 keeps the boom 210 in the current position through self-locking or other means, making it convenient for the user to pick up and put down clothes. After the user has finished picking up and putting down clothes, they press the control button at the top of the boom 210. The torque output component 120 starts in reverse and generates an actuating torque that lifts the pivot 211 to rotate in the second direction (counterclockwise) through the support body 121, realizing the flipping and rising of the clothes hanger, so that the boom 210 returns to the initial position.

[0075] The normal tilting and lowering of boom 210 will be as follows: Figure 5 The first position shown flips down to, as... Figure 18 The second position shown. (As indicated) Figure 19As shown, during the tilting and lowering of the boom 210, if the clothes hanger encounters an obstacle, since the torque output component 120 is rotating in the first direction, the support body 121 will not generate a second-direction actuating torque on the boom 210. The pivot 211 will then disengage from the support body 121 in the first direction. In other words, after the clothes hanger encounters an obstacle, the boom 210 can stop tilting and lowering, while the actuation unit 110 and the torque output component 120 can continue to move. However, after the torque output component 120 has moved a certain distance, the Hall sensor 410 will detect that the magnetic component 420 has not moved and will send a signal to the controller to stop the actuation unit 110 from moving. Alternatively, the controller will send a reverse movement signal to the actuation unit 110, causing the torque output component 120 to move in the second direction, so that the support body 121 can re-support the pivot 211 and compensate for the disengagement angle.

[0076] During the normal tilting and lifting of the electric clothes hanger, the torque limiting clutch 300 is always engaged between the pivot 211 and the positioning ring 122. When the boom 210 is obstructed during tilting and lowering, relative rotation will occur between the pivot 211 and the positioning ring 122. This will force the transmission pin 320 to disengage from the transmission groove 330, preventing the power of the actuation unit 110 from being transmitted to the pivot 211 again. When the actuation unit 110 reverses a certain angle, the transmission groove 330 and the transmission pin 320 are aligned. Under the push of the preload 310, the transmission pin 320 is reinserted into the transmission groove 330, causing the torque limiting clutch 300 to re-engage, allowing torque within a certain limit to be transmitted from the actuation unit 110 to the pivot 211. When the main unit is installed incorrectly, and the center of gravity of the clothes hanger is located on the positive Y-axis or slightly deviated from the positive Y-axis and located in the second quadrant, the torque limiting clutch 300 can be used to drive the pivot 211 to rotate in the first direction, so that the center of gravity of the clothes hanger enters the first quadrant, and the clothes hanger can achieve flipping and descending by relying on its own gravity torque.

[0077] After adopting the above embodiment, since the pivot 211 of the boom 210 is only freely supported by the support body 121, the support body 121 is only resisting the gravitational torque and preventing the clothes hanger from rotating from the vertical position to the horizontal position. When the clothes hanger rotates from the vertical position to the horizontal position, if it is obstructed, the support body 121 will disengage from the pivot 211, so that the resistance received by the clothes hanger will not be transmitted to the torque output component 120 and the actuation unit 110. This can also avoid damage to the actuation unit 110 and the torque output component 120 after the clothes hanger is obstructed during the descent, thus protecting the safety of the main unit 100.

[0078] Example 2

[0079] like Figures 6 to 9The illustration shows a second embodiment of the electric clothes hanger of this utility model, which can be implemented based on the first embodiment or on other electric clothes hangers. The structure of the actuation unit 110 of this utility model is also different from that disclosed in the prior art. The actuation unit 110 includes a motor 111 and a reduction unit 112. The reduction unit 112 includes a worm gear mechanism and a planetary reducer 1121. The worm gear mechanism is connected to the motor 111. The worm gear 1122 of the worm gear mechanism, the planetary reducer 1121, and the torque output component 120 are coaxially driven. The worm gear mechanism does not need to generate axial displacement during the movement, as in the prior art. Therefore, the size of the entire main unit 100 can be reduced. Furthermore, the use of the planetary reducer 1121 can not only reduce the speed of the torque output component 120 and achieve precise control of the clothes hanger's flipping and lifting position, but also allow the planetary reducer 1121 to output a larger torque, enabling the lifting of large loads.

[0080] Furthermore, the worm gear mechanism incorporates a self-locking structure, which allows the hanger to remain at any position during the flipping and lifting process. Specifically, the hanger can be suspended between the first and second positions, allowing the user to freely adjust the hanging height according to actual needs. The self-locking structure includes at least one of the following:

[0081] The helical teeth of the worm 1123 and the teeth of the worm wheel 1122 form a one-way friction self-locking mechanism, allowing the worm 1123 to drive the worm wheel 1122 while the worm wheel 1122 cannot drive the worm 1123. This solution utilizes the friction between the inclined surface of the worm 1123 and the tooth surface of the worm wheel 1122. When the lead angle of the worm 1123 is less than the equivalent friction angle between the meshing teeth, the self-locking function is achieved. The smaller the lead angle of the worm wheel 1122 and the worm 1123, the higher the self-locking performance and the easier it is to achieve self-locking.

[0082] Alternatively, as disclosed in CN113653782A, the main unit 100 includes a housing 130 that houses the actuation unit 110 and the torque output component 120. A friction ring 1124 is fitted onto the non-engaging section of the worm gear 1123. The friction ring 1124 has a notch and a limiting part on its outer periphery. The housing 130 cooperates with the limiting part so that the friction ring 1124 clamps the worm gear 1123 and performs unidirectional self-locking when the worm gear 1123 has a reverse tendency due to the load torque of the clothes hanger.

[0083] like Figure 8 , Figure 9As shown, this embodiment uses a two-stage planetary reducer 1121, which can improve output torque without being too large in size, making it suitable for installation inside objects such as clothing. Of course, depending on the model of the motor 111, the installation location, and the load requirements, a more advanced planetary reducer 1121 can also be configured. The planetary reducer 1121 includes at least two coaxially connected planetary gear trains 1125. The sun gear 1126 of the first planetary gear train 1125 is coaxially driven with the worm gear 1122, improving the tightness of the installation between the planetary gear train 1125 and the worm gear 1122. The planetary cage 1127 of the last planetary gear train 1125 is coaxially driven with the torque output component 120, or the planetary cage 1127 of the last planetary gear train 1125 serves as the torque output component 120. In this embodiment, the planetary cage 1127 of the end planetary gear train 1125 is used as the torque output component 120. One end face of the planetary cage 1127 is provided with a wheel axle connected to the end planetary gear train 1125, and the other end of the planetary cage 1127 is provided with a support body 121 that cooperates with the pivot part 211.

[0084] Furthermore, the actuation unit 110 also includes a centering shaft 113 non-rotatably disposed within the main unit 100. The worm gear 1122, planetary reducer 1121, and torque output component 120 are coaxially arranged by the centering shaft 113, and the axis of the centering shaft 113 defines the first axis L1. The concentricity of the worm gear 1122, planetary reducer 1121, and torque output component 120 is determined by the centering shaft 113, ensuring that they can rotate around the first axis L1.

[0085] In this embodiment, since the actuator unit 110 and the torque output unit are housed in the housing 130 of the main unit 100, the entire length direction of the main unit 100 is generally vertical, but it can also be horizontal. As the two largest components inside the main unit 100, the motor 111 and the planetary reducer 1121 are generally arranged along the length direction of the main unit 100. In order to shorten the length of the main unit 100, in this embodiment, the motor 111 is tilted, that is, the angle α between the axis of the motor 111 and the length direction of the housing 130 is an acute angle. Furthermore, the projection of the center of gravity of the motor 111 on the plane perpendicular to the length axis of the housing 130 is located within the projection of the reduction unit 112 on that plane. That is, if the housing 130 is vertically arranged, then the length direction of the housing 130 is vertical, and the projection of the center of gravity of the motor 111 on the horizontal plane is located within the projection of the reduction unit 112 on the horizontal plane. In this way, while shortening the length of the housing 130, the increase in the width dimension of the housing 130 can be reduced or avoided.

[0086] Furthermore, the housing 130 is vertically positioned, and the center of gravity of the motor 111 is located directly below the first axis L1. In other words, the center of gravity of the motor 111 and the center of gravity of the reduction unit 112 are on the same vertical line, which can ensure the stability of the center of gravity of the entire host 100.

[0087] In this embodiment, a worm gear mechanism and a planetary reducer 1121 are used as the reduction unit 112. Since there are no translational elements during power transmission, the transmission efficiency is improved. Furthermore, by optimizing the arrangement of the motor 111 within the housing 130, the length of the main unit 100 is shortened. In existing solutions, a lead screw and nut are used to drive the swing arm, requiring the lead screw to be offset from the swing arm's center, occupying space in the width direction of the main unit 100. However, in this application, the lead screw and nut transmission structure is eliminated, and the planetary reducer 1121 directly drives the boom 210 to swing via the pivot 211, thereby reducing the width of the main unit 100 and thus reducing both its width and length. The planetary reducer 1121 not only enables precise control of the hanger's descent position but also outputs a larger torque, improving load-bearing capacity.

[0088] Example 3:

[0089] like Figures 6 to 14The illustration shows a third embodiment of the electric clothes hanger of this invention. It can be implemented based on embodiments one or two, and can also be applied to electric clothes hangers with other structures, solving the problem in the prior art where the load-bearing capacity of the electric clothes hanger is limited by the strength of the housing 130. In this embodiment, the main unit 100 includes a housing 130 that houses the actuation unit 110 and the torque output component 120. The actuation unit 110 includes a reduction gearbox 114 that houses the reduction unit 112. The gear ring of the planetary reducer 1121 is fixed to the reduction gearbox 114 or forms part of the reduction gearbox 114. Preferably, the gear ring is part of the reduction gearbox 114 to improve the integration of the entire reduction gearbox 114 and reduce its volume. The electric clothes hanger also includes a load-bearing component 500 fixed to the electric clothes hanger carrier, meaning the load-bearing component 500 is directly fixed to the cabinet 800. This makes it easier to install the load-bearing component 500 in the accurate position and angle, facilitating the fixation of the main unit 100 and the load-bearing component 500. A torque transmission component 115 is provided at the deceleration point. This component 115 passes through a through-hole 131 in the housing 130 and connects to the load-bearing component 500. The load torque of the clothes hanger is guided by the torque transmission component 115, bypassing the housing 130 and directly reaching the load-bearing component 500. Through the torque transmission component 115 and its connection method, the housing 130 only serves to house the actuation unit 110 and the torque output component 120. The torque generated by the reduction gearbox 114 during the operation of the electric clothes hanger is directly transmitted to the load-bearing component 500 via the torque transmission component 115. This significantly reduces the strength requirements of the housing 130. While meeting the housing function, the housing 130 can be made as thin and light as possible without considering the influence of torque. The torque transmission component 115 can be fixed to the main unit in place beforehand, and the load-bearing component 500 can be pre-installed on the electric clothes hanger carrier. Finally, the torque transmission component 115 is fixedly connected to the load-bearing component 500 to more accurately determine the position and angle of the main unit 100 after installation.

[0090] Furthermore, the outer side of the housing 130 is provided with a cavity 132, and the load-bearing component 500 is at least partially housed in the cavity 132. By setting the cavity 132, after the main unit 100 is installed on the load-bearing component 500, the housing 130 can be as close as possible to the electric clothes hanger carrier, reducing the gap between the housing 130 and the electric clothes hanger carrier and improving the overall aesthetics.

[0091] like Figure 10 , Figure 13As shown, in order to achieve quick installation of the host 100 and the load-bearing component 500, the torque transmission component 115 includes a torque transmission rod 1151 and a flange 1152 extending radially outward on the torque transmission rod 1151. The load-bearing component 500 is provided with a load-bearing groove 510 with an upper opening. The torque transmission rod 1151 is hooked into the load-bearing groove 510 through the opening. The reason for the upper opening is to ensure that the load-bearing component 500 will not come out of the load-bearing groove 510 when the host 100 is not subjected to an upward external force or is subjected to a small upward external force. The flange 1152 and the load-bearing component 500 around the load-bearing groove 510 form an axial stop to restrict the axial movement of the torque transmission component 115, thereby realizing the fixed connection between the host 100 and the load-bearing component 500. The opening of the load-bearing groove 510 located on the upper part of the load-bearing component 500 is upward and communicates with the outside. In this way, the upper part of the load-bearing component 500 can avoid retaining a closed annular load-bearing groove 510 and reserving too much space, thereby reducing the size of the load-bearing component 500 and consequently reducing the size of the recess 132 on the housing 120, and avoiding the load-bearing component 500 being too large, which would cause the size of the housing 130 to also become larger.

[0092] Furthermore, a stop flange 1152 with abutment portion 511 is provided in the load-bearing groove 510 to stop the axial movement of the torque transmission component 115. By setting the abutment portion 511 in the load-bearing groove 510, the abutment portion 511 can be avoided from being exposed, ensuring the overall aesthetics. It can also prevent the abutment portion 511 from obstructing the outer side of the load-bearing component 500 from sticking to the clothes hanger carrier. The load-bearing component 500 is plate-shaped or block-shaped. The outer side refers to the end face of the load-bearing component 500 that is away from the main unit.

[0093] Furthermore, a receiving portion 512 is provided in the load-bearing groove 510 between the abutment portion 511 and the outer side of the load-bearing member 500. The flange 1152 is received in the receiving portion 512. The flange 1152 is located at the end of the torque transmission rod 1151. In this way, after the flange 1152 abuts against the abutment portion 511, the flange 1152 is completely received in the receiving portion 512 and will not protrude from the outer side of the load-bearing member 500. This allows the outer side of the load-bearing member 500 to be completely close to the clothes hanger carrier, making the installation of the load-bearing member 500 more stable.

[0094] Based on the above embodiment, the torque transmission rod 1151 includes a first fixing part 1153, which is located at the end of the torque transmission rod 1151 away from the flange 1152. The gearbox 114 is provided with a second fixing part 1141 that cooperates with the first fixing part 1153. One of the first fixing part 1153 and the second fixing part 1141 is provided with an external thread, and the other is a threaded hole. Since the first fixing part 1153 is on the torque transmission rod 1151, the first fixing part 1153 is generally provided with an external thread, while the second fixing part 1141 provided on the gearbox 114 is a threaded hole, to ensure that the torque transmission rod 1151 can be stably connected to the gearbox 114.

[0095] Furthermore, the torque transmission rod 1151 also includes a first positioning part 1154 for limiting the length of the torque transmission rod 1151 extending out of the gearbox 114. The first positioning part 1154 extends radially outward on the torque transmission rod 1151 and abuts against the gearbox 114 around the second fixing part 1141. The first positioning part 1154 limits the length of the first fixing part 1153 entering the second fixing part 1141, ensuring that the first positioning part 1154 and the second positioning part 1154 can be installed in place.

[0096] like Figure 3 , Figure 5 , Figure 14 As shown, the torque output component 120 has a centering hole 123 through which the first axis L1 passes. The housing 130 is provided with a centering seat 133, which is axially embedded in the centering hole 123 and a first radial bearing 140 is arranged between the two. A second radial bearing 150 is arranged between the worm wheel 1122 of the worm gear mechanism and the reduction gearbox 114. The first radial bearing 140 and the second radial bearing 150 realize the support of the housing 130 for the planetary reducer 1121, the torque output component 120 and the worm wheel 1122, ensuring that the above three can rotate on the first axis L1. The second radial bearing 150 ensures that the rotation axis of the worm wheel 1122 is also the first axis L1, and allows the worm wheel 1122 to rotate freely relative to the reduction gearbox 114.

[0097] like Figure 11 , Figure 12 As shown, during installation, the load-bearing component 500 is first fixed to the clothes hanger carrier, that is, the load-bearing component 500 is fixed to the side wall of the cabinet, so that the load-bearing component 500 is close to the side wall of the cabinet and the opening of the load-bearing groove 510 is facing upwards. Then, the torque transmission component 115 is aligned with the opening of the load-bearing groove 510. After the flange 1152 passes through the opening, the entire main unit 100 is moved downwards relative to the load-bearing component 500, so that the flange 1152 stops with the abutment part 511, thus completing the fixing of the main unit 100. If it is necessary to disassemble the main unit 100, the above steps are reversed to remove the main unit 100. The structure of this embodiment not only facilitates the positioning of the main unit 100, but also reduces the strength requirements of the housing 130, allowing the torque of the actuation unit 110 to be directly transmitted to the load-bearing component 500, which helps to reduce costs and allows the main unit 100 to withstand higher torque.

[0098] Example 4

[0099] See Figure 2 , Figures 15 to 17The illustration shows a fourth embodiment of the electric clothes hanger of this invention. It can be applied based on any of the embodiments one to three, or to other flip-up and lifting clothes hangers, solving the problem of noise generated by the relative rotation of the hanger rod 220 and the metal hanger 600 during flip-up and lifting. The clothes hanger includes a boom 210 drivenly connected to the main unit 100 and a hanger rod 220 attached to the boom 210. The end of the hanger rod 220 is rotatably connected to the boom 210 through a rotating connector to maintain the relative stillness of the hanger rod 220 and the suspended object when the boom 210 moves.

[0100] The rotary connector includes a third radial bearing 710 or a component that performs the same rotary connection function as the third radial bearing 710, such as a rotary connector formed by fitting a shaft hole coated with a lubricant such as molybdenum disulfide or polytetrafluoroethylene. The third radial bearing 710 is a mature technology and does not generate noise during operation. This embodiment uses the third radial bearing 710 as an example for description.

[0101] In addition to a pivot portion 211 that engages with the main unit 100 for transmission, the boom 210 also includes a connecting portion 212 extending radially outward from the pivot portion 211. The connecting portion 212 can be rod-shaped or strip-shaped, and the connecting portion 212 and the pivot portion can be integrally formed or detachably fixedly connected. A clothes hanger rod 220 is connected to the end of the connecting portion 212 of the two booms 210. One end of the clothes hanger rod 220 is connected to one of the connecting portions 212 of the corresponding boom 210, which is connected to the inner hole of the third radial bearing 710, and the other end is connected to the outer ring of the third radial bearing 710. Generally, the clothes hanger rod 220 is fixedly connected to the inner hole of the third radial bearing 710, while the outer ring of the third radial bearing 710 is fixed to the boom 210. This fully utilizes the rod-shaped structure of the clothes hanger rod 220, and only requires a mounting hole to be made on the boom 210 to fix the third radial bearing 710.

[0102] Furthermore, the electric clothes hanger also includes a first docking member 720, which includes a first docking shaft 721 and a second docking shaft 722. The first docking shaft 721 is connected to the inner hole of the third radial bearing 710, and the second docking shaft 722 is fixedly connected to the clothes hanger rod 220. Since in this embodiment the clothes hanger rod 220 is fixedly connected to the inner hole of the third radial bearing 710, the second docking shaft 722 is fixedly connected to the clothes hanger rod 220. If the boom 210 is fixedly connected to the inner hole of the third radial bearing 710, then the second docking shaft 722 of the first docking member 720 is fixedly connected to the boom 210. By setting the first connecting piece 720 to serve as a connection, if the hanger rod 220 is directly fixedly connected to the inner hole of the third radial bearing 710, the inner hole size of the third radial bearing 710 will limit the diameter of the hanger rod 220. Making the hanger rod 220 thicker would require the third radial bearing 710 to also be larger, resulting in the third radial bearing 710 being unable to be fixed to the arm 210. Therefore, by using the first connecting piece 720 as a connecting piece between the hanger rod 220 or the arm 210 and the third radial bearing 710, the strength of the first connecting piece 720 can be increased to meet the requirements. Moreover, by making full use of the hollow structure of the general hanger rod 220, the second connecting shaft 722 can be inserted from the end of the hanger rod 220 along the axial direction of the hanger rod 220 without making special modifications to the hanger rod 220.

[0103] Furthermore, in this embodiment, the third radial bearing 710 is a ball bearing 710, and the first mating member 720 is also provided with a first axial limiting surface 723. The first axial limiting surface 723 abuts against the end face of the inner ring of the third radial bearing 710. The first axial limiting surface 723 can ensure that the first mating member 720 and the third radial bearing 710 are properly mated, avoiding axial relative movement between the third radial bearing 710 and the first mating member 720 during use.

[0104] In addition, the electric clothes hanger also includes a second docking member 730, which is detachably and fixedly connected to the first docking member 720. A third radial bearing 710 is fixed between the first docking member 720 and the second docking member 730. Since one end of the third radial bearing 710 is already limited by the first axial limiting surface 723, a second axial limiting surface 731 can be provided on the second docking member 730 to limit the other end face of the inner ring of the third radial bearing 710. Specifically, a threaded hole can be opened on the end face of the first docking shaft 721 of the first docking member 720. The second docking member 730 uses a bolt to achieve a detachable connection between the second docking member 730 and the first docking member 720. The head of the bolt forms the second axial limiting surface 731. By tightening the bolt on the first docking shaft 721, the third radial bearing 710 can be fixedly connected to the first docking member 720 in the axial direction.

[0105] If the rotating connector uses a third radial bearing 710 or a similar structure, the rotating connector needs to be fixed in the connecting hole 740. A second positioning part 741 is provided in the connecting hole 740, and the second positioning part 741 abuts against the end face of the rotating connector facing away from the opening of the connecting hole 740. The second positioning part 741 ensures that the rotating connector is installed in place. If other components need to be arranged in the connecting hole 740, the second positioning part 741 can also determine the position of the rotating connector, preventing the rotating connector from affecting the installation of other components. The connecting hole 740 is determined according to the structure of the boom 210 and the clothes hanger rod 220, and can be set on the boom 210 or the clothes hanger rod 220. In this embodiment, the connecting hole 740 is set on the boom 210.

[0106] Furthermore, the second positioning part 741 only positions and fixes the rotating connector on one side along the axial direction of the connecting hole 740. The rotating connector can be fixedly connected to the connecting hole 740 by means of friction, etc. However, a more secure method is to provide a first fixing member 750 that is detachably connected to the connecting hole 740. The first fixing member 750 abuts against the end face of the rotating connector facing the opening of the connecting hole 740, thereby using the first fixing member 750 and the second positioning part 741 to fix the rotating connector in the connecting hole 740 along the axial direction. The second positioning part 741 can be a screw or an object with a similar structure. The second positioning part 741 is fixedly connected to the connecting hole 740 by threads, and its tail forms a positioning surface that abuts against the end face of the rotating connector facing the opening of the connecting hole 740.

[0107] The electric clothes hanger also includes a cover 760 that covers the opening of the connection hole 740. The cover 760 can be directly fixed to the rotating connector, for example, the cover 760 can be fixed to the outer ring end wall of the third radial bearing 710, or the cover 760 can be fixed to the first mating part 720, or the cover 760 and the first mating part 720 can be manufactured as one piece. The cover 760 prevents the opening of the connection hole 740 from being exposed, prevents foreign objects from entering the connection hole 740, avoids affecting the normal operation of the third radial bearing 710, and can also improve the overall aesthetics. In addition, the cover 760 can also abut against the opening of the connection hole 740 to determine whether the rotating connector is installed in place.

[0108] Based on the above embodiments, the rotating connector can be directly connected to the end of the boom 210. The boom 210 is typically a rod-shaped structure. To reduce manufacturing difficulty, a corner piece 770 is provided at the end of the boom 210. The corner piece 770 has a connecting hole 740 for connection with the rotating connector. A controller or other equipment can also be installed on the corner piece 770 to facilitate control of the electric clothes hanger. The connection between the corner piece 770 and the boom 210 can be achieved through a plug-in connection; that is, the corner piece 770 has a plug-in hole 771 for insertion into the boom 210. This helps reduce installation difficulty.

[0109] The axis of the insertion hole 771 on the corner piece 770 is perpendicular to the axis of the connecting hole 740, and the insertion hole 771 and the connecting hole 740 are connected. This allows tools to be inserted through the insertion hole 771 when installing components in the connecting hole 740, facilitating operation. In this embodiment, the connecting hole 740 is not directly formed on the boom 210 to reduce the manufacturing difficulty of the boom 210. Instead, the connecting hole 740 is formed on the corner piece 770, which also facilitates the modification of existing electric clothes hangers. The rotary connector in this embodiment includes a third radial bearing 710 and a connecting hole 740, which is a two-stage stepped hole. After the third radial bearing 710 is installed into the connecting hole 740, the inner end face of the outer ring of the third radial bearing 710 abuts against the first-stage step of the connecting hole 740, and the first-stage step forms the second positioning part 741. A threaded hole is opened on the second-stage step of the connecting hole 740. The first fixing member 750 is screwed into the threaded hole, and the tail of the first fixing member 750 abuts against the outer end face of the outer ring of the third radial bearing 710, thereby realizing the fixed connection between the third radial bearing 710 and the corner member 770. If the hanger rod 220 has a thinner diameter, it can be directly inserted into the inner hole of the third radial bearing 710, allowing the hanger rod 220 and the suspended object to remain relatively stationary during hanger rotation and lifting. If the hanger rod 220 has a thicker diameter, a first connecting member 720 is needed to connect the hanger rod 220 to the third radial bearing 710. The first connecting shaft 721 of the first connecting member 720 is inserted into the inner hole of the third radial bearing 710, and the second connecting shaft 722 of the first connecting member 720 is inserted into the hanger rod 220. To further improve the connection strength between the first connecting member 720 and the third radial bearing 710, a second connecting member 730 is also provided in the connecting hole 740. The second connecting member 730 and the first connecting member 720 can also be detachably connected by a threaded connection. The first connecting member 720 and the second connecting member 730 clamp the inner ring of the third radial bearing 710 from two directions along the axial direction of the third radial bearing 710, thus securing the first connecting member 720 to the third radial bearing 710. The above solution solves the problem of noise generated when the clothes hanger rod 220 rotates relative to the hanging object during the clothes hanger's flipping and lifting.

[0110] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. An electric clothes hanger, characterized in that, include: The host includes an actuation unit and a torque output component. The torque output component is driven to rotate by the reduction torque provided by the actuation unit. The actuation unit includes a motor and a reduction unit. The reduction unit includes a worm gear mechanism and a planetary reducer. The worm gear mechanism is connected to the motor. The worm gear, planetary reducer and torque output component of the worm gear mechanism rotate around a first axis. A clothes hanger includes a boom with a pivot and a hanger rod attached to the boom. The pivot is pivotally connected to a main unit to form a second axis. A torque output component is driven to the pivot to control the boom to rotate and lift around the second axis.

2. The electric clothes hanger as described in claim 1, characterized in that, The main unit includes a housing that houses the actuation unit and the torque output component. The angle between the axis of the motor and the axis of the housing along its length is an acute angle. On a plane perpendicular to the axis of the housing along its length, the projection of the center of gravity of the motor onto this plane lies within the projection of the reduction unit onto this plane.

3. The electric clothes hanger as described in claim 2, characterized in that, The length axis of the housing is set vertically, and the motor is located below the reduction unit.

4. The electric clothes hanger as described in claim 2 or 3, characterized in that, The line connecting the center of gravity of the motor and the center of gravity of the reduction unit is parallel to the axis along the length of the housing.

5. The electric clothes hanger as described in claim 1, characterized in that, The actuation unit also includes a non-rotatable centering shaft, through which the worm gear, planetary reducer and torque output component are arranged coaxially, and the centerline of the centering shaft determines the first axis.

6. The electric clothes hanger as described in claim 1, characterized in that, The worm gear mechanism has a built-in self-locking structure, which includes at least one of the following structures: The helical teeth of the worm and the teeth of the worm wheel form a one-way friction self-locking mechanism, which allows the worm to drive the worm wheel but the worm wheel cannot drive the worm. The non-engaging section of the worm is fitted with a friction ring, which clamps the worm to achieve unidirectional self-locking when the worm is subjected to a reverse tendency due to the load torque of the clothes hanger. The self-locking structure allows the clothes hanger to be suspended at any position during the flipping and lifting process.

7. The electric clothes hanger as described in claim 1, characterized in that, The planetary reducer includes at least two planetary gear trains connected in series on the same axis. The sun gear and worm gear of the first planetary gear train are driven coaxially, and the planetary cage of the last planetary gear train is driven coaxially with the torque output component, or the planetary cage of the last planetary gear train serves as the torque output component.

8. The electric clothes hanger as described in claim 1, characterized in that, The first axis and the second axis coincide.

9. The electric clothes hanger as described in claim 1, characterized in that, The actuation unit includes a reduction gearbox housing the reduction unit, and the gear ring of the planetary reducer forms part of the reduction gearbox.

10. The electric clothes hanger as described in claim 9, characterized in that, The torque output component has a centering hole through which a first axis passes. The main unit includes a housing that houses the actuation unit and the torque output component. A centering seat is provided on the housing. The centering seat is axially embedded in the centering hole and a first radial bearing is disposed between the two. A second radial bearing is disposed between the worm wheel of the worm gear mechanism and the reduction gearbox.

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