Electric clothes hanger

Abstract

The invention discloses an electric clothes hanger which comprises a main machine comprising an actuating unit and a torque output component, the torque output component is driven by deceleration torque provided by the actuating unit to rotate around a first axis, and a supporting body is arranged on the torque output component and deviates from the 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, the clothes hanger can be overturned and lifted around the second axis, and the part, deviating from the second axis, of the pivoting part is freely supported by the supporting body; when the torque output component outputs the actuating torque in the first direction, the clothes hanger turns over and descends in response to the gravitational torque, and the clothes hanger can be operated to rotate in the opposite second direction to be separated from the supporting body in the reverse direction in the process of turning over and descending in the first direction. When the clothes hanger is blocked in the overturning and descending process, the barrier only bears the gravity of the clothes hanger and is not applied with the actuating torque of the actuating unit, so that people or objects are prevented from being secondarily injured by the actuating unit, namely, the anti-pinch function is realized.

Description

Technical Field

[0001] The invention relates to the field of lifting clothes hangers, in particular to an electric clothes hanger. Background Art

[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 getting higher and higher. Traditional clothes hangers can no longer meet people's needs for storage and hanging. Therefore, electric clothes hangers have emerged as a new type of home product.

[0003] The electric hanger is powered by an electrically driven device (such as a motor with a deceleration output function), but obstacles in the use environment of the electric hanger cannot be predicted in advance, and the flipping of the hanger may cause people or objects to be accidentally squeezed. Known public protection measures include adding an obstacle sensor, which can be a piezoelectric sensor, a photoelectric sensor, etc. They can detect whether the obstacle has entered the space under the hanger during the hanger flipping process, or whether it has already touched the hanger. The sensor detection signal is transmitted to the control unit, and the control unit controls the motor to perform a stop or reverse operation. The disadvantages of the above protection measures are also obvious, because the sensor only covers a limited area and is usually arranged at a position where there is a potential risk of squeezing during the flipping operation. However, for electric hangers, it is almost impossible to equip all areas with such sensors at too high a cost; if a piezoelectric sensor is used, its trigger mechanism causes the system to respond after the hanger contacts the obstacle, which means that people or objects may still get stuck and be continuously squeezed; in addition, the above protection measures all face the defect of unstable electronic components. Once the sensor fails, the obstacle protection function will fail. Summary of the invention

[0004] The object of the present invention is to provide an electric clothes hanger to solve the problem of poor reliability of resistance detection in existing electric clothes hangers, and to achieve the resistance anti-pinch function using a simpler and more stable mechanical structure.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] Electric clothes hanger, including:

[0007] A main machine, comprising an actuating unit and a torque output component, wherein the torque output component is driven to rotate around a first axis by a deceleration torque provided by the actuating unit, and a support body is arranged on the torque output component away from the first axis;

[0008] The clothes hanger comprises a suspension arm with a pivot part and a hanger rod attached to the suspension arm, wherein the pivot part is pivotally connected to a main machine to form a second axis, and the clothes hanger can be flipped and lifted around the second axis, and a portion of the pivot part deviating from the second axis is freely supported by the support body, so that the clothes hanger flips and descends in response to the gravity torque when the torque output component outputs an actuating torque in a first direction, and the clothes hanger can be operated to rotate in the opposite second direction and separate from the support body in the opposite direction during the process of flipping and descending along the first direction.

[0009] In the above electric clothes hanger, an arc-shaped first guide groove is arranged on the pivotal part around the second axis, the support body is slidably guided in the first guide groove, and the support body freely supports one end of the first guide groove during the turning and descending process of the hanger.

[0010] In the above electric clothes hanger, the pivoting portion is disc-shaped, the first guide groove penetrates from one axial side of the pivoting portion to the other axial side, and the support body extends into the first guide groove in a direction parallel to the first axis.

[0011] In the above-mentioned electric clothes hanger, an arc-shaped second guide groove is arranged on the torque output component around the first axis, a guide pin is axially extended from a portion of the pivot portion deviating from the second axis, the guide pin is slidably guided in the second guide groove, and one end of the second guide groove constitutes the support body.

[0012] In the above-mentioned electric clothes hanger, the hanger flips and rises and falls around a second axis between a first position and a second position lower than the first position, and the rotation direction from the first position to the second position is defined as the first direction, and the rotation direction from the second position to the first position is defined as the second direction. When the hanger is in the first position, it maintains a rotation trend toward the second position along the first direction under the action of gravity torque, and the torque output component outputs an actuating torque in the second direction to the hanger through the support body to drive the hanger to rotate along the second direction to the first position.

[0013] In the above-mentioned electric clothes hanger, in the two-dimensional orthogonal coordinate system constructed with the second axis as the origin, the center of gravity of the hanger when it is in the first position is located in the first quadrant, and the center of gravity of the hanger when it is in the second position is located in one of the first quadrant, the fourth quadrant and the positive half axis of X.

[0014] In the above electric clothes hanger, the first axis and the second axis coincide with each other.

[0015] In the above electric clothes hanger, a positioning ring is arranged around the first axis on the torque output component, a positioning hole is arranged on the pivotal portion, and the positioning ring is matched in the positioning hole for centering and rotational support of the pivotal portion.

[0016] In the above electric clothes hanger, a torque limiting clutch is connected between the positioning ring and the pivoting part, and the torque limiting clutch enables the pivoting part and the positioning ring to keep synchronous rotation under a predetermined torque.

[0017] In the above-mentioned electric clothes hanger, the torque limiting clutch includes a preload, a transmission pin and a transmission groove. One of the pivotal part and the positioning ring is provided with a preload and a transmission pin that abut against each other, and the other is provided with a transmission groove. The transmission pin is preloaded by the preload and engaged in the transmission groove.

[0018] In the above-mentioned electric clothes hanger, the torque limiting clutch includes at least two transmission grooves distributed at circumferential intervals. When the clothes hanger flips and descends, the transmission pin engages one of the transmission grooves. The clothes hanger can be operated to rotate in a second direction and separate from the support body in the opposite direction, and the transmission pin engages the other transmission groove in the second direction.

[0019] In the above-mentioned electric clothes hanger, the electric clothes hanger also includes a controller and a detection unit. The detection unit detects the flipping and lifting process of the hanger and can trigger a resistance signal when the hanger rotates in a second direction during the flipping and descending process along the first direction. The controller is configured to control the actuating unit to stop or reverse according to the resistance signal.

[0020] In the above-mentioned electric clothes hanger, the detection unit includes a Hall sensor and a magnetic component, the Hall sensor is fixed in the main unit, the magnetic component is installed on the pivot part, and the flipping and descending process of the clothes hanger around the second axis can be continuously detected by the Hall sensor.

[0021] In the above-mentioned electric clothes hanger, the actuating 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 transmission-connected to the motor, and the worm gear, planetary reducer and torque output component of the worm gear mechanism are coaxially driven.

[0022] In the above electric clothes hanger, the worm gear mechanism has a built-in self-locking structure, and the self-locking structure includes at least one of the following structures:

[0023] The spiral teeth of the worm and the teeth of the worm wheel form a one-way friction self-locking, so that the worm can drive the worm wheel but the worm wheel cannot drive the worm;

[0024] The non-meshing section of the worm is provided with a friction ring, and the friction ring holds the worm tightly to implement one-way self-locking when the worm is subjected to a clothes hanger load torque and has a reverse tendency;

[0025] The self-locking structure enables the hanger to hover at any position during the turning and lifting process.

[0026] In the above-mentioned electric clothes hanger, the planetary reducer includes at least two coaxially connected planetary gear trains in series, the sun gear of the first planetary gear train is coaxially driven with the worm gear, and the planetary retainer of the terminal planetary gear train is coaxially driven with the torque output component, or the planetary retainer of the terminal planetary gear train serves as the torque output component.

[0027] In the above electric clothes hanger, the actuating unit further comprises a centering shaft non-rotatably arranged in the main unit, the worm gear, planetary reducer and torque output component are penetrated by the centering shaft to form a coaxial arrangement, and the axis of the centering shaft determines the first axis.

[0028] In the above-mentioned electric clothes hanger, the main unit includes a casing for accommodating an actuating unit and a torque output component, the actuating unit includes a reduction box for accommodating a reduction unit, the ring gear of the planetary reducer is fixed on the reduction box or constitutes a part of the reduction box, the electric clothes hanger also includes a load-bearing member fixed on the electric clothes hanger carrier, the reduction box is provided with a torque transmission component, the torque transmission component passes through a through hole on the casing and is connected to the load-bearing member, and the hanger load torque is guided by the torque transmission component and bypasses the casing to reach the load-bearing member directly.

[0029] In the above electric clothes hanger, a concave cavity is provided on the outer side surface of the housing, and the load-bearing member is at least partially accommodated in the concave cavity.

[0030] In the above-mentioned electric clothes hanger, the torque transmission component includes a torque transmission rod and a flange extending radially outward on the torque transmission rod, the load-bearing member is provided with a load-bearing groove with an opening at the upper end, the torque transmission rod is hung in the load-bearing groove through the opening, and the flange and the load-bearing member around the load-bearing groove form an axial stop to limit the axial movement of the torque transmission component.

[0031] In the above-mentioned electric clothes hanger, the torque output component has a centering hole penetrated by the first axis, the casing is provided with a centering seat, the centering seat is axially embedded in the centering hole and a first radial bearing is arranged between the two, and a second radial bearing is arranged between the worm wheel of the worm gear mechanism and the reduction box.

[0032] Compared with the prior art, the advantages of the present invention are:

[0033] In the present invention, the portion of the pivotal part of the suspension arm that deviates from the second axis is freely supported by the support body, so that the hanger turns over and descends in response to the gravity torque when the torque output component outputs the actuating torque in the first direction. The torque output component supports the hanger through the support body, and controls the speed and position of the hanger turning over and descending. During the process of turning over and descending along the first direction, the hanger can be operated to rotate in a second direction opposite to the first direction, so as to be reversely separated from the support body. This means that if the hanger encounters an obstacle during the descent process, the pivotal part can be reversely separated from the support body, and at least in the short term, the operation of the actuating unit will not be hindered, and the actuating unit is protected from damage, because the hanger is not driven by the actuating unit to forcibly descend. Once an obstacle is encountered, the hanger can remain in the current position without continuously squeezing the obstacle. The obstacle only bears the gravity of the hanger without being applied with the actuating torque of the actuating unit, which at least ensures that people or objects are protected from secondary damage by the actuating unit, that is, the so-called anti-pinch function.

[0034] This freely supported protection mechanism achieves the anti-pinch function with a simpler and more stable mechanical structure, reduces the electric clothes hanger's reliance on sensors, avoids the need for complex electronic sensors, reduces costs and maintenance difficulties, and fundamentally solves the various problems caused by relying solely on sensors to detect obstructions. What's more advantageous is that in the event of an obstruction, the clothes hanger can rotate in a second direction opposite to the first direction, which makes it easier for users to remove obstacles, thereby eliminating obstructions and improving convenience of use.

[0035] Furthermore, an arc-shaped first guide groove is arranged on the pivotal part around the second axis, and the support body is slidably guided in the first guide groove. When the hanger is turned over and lowered, the support body freely supports one end of the first guide groove. The first guide groove provides a certain sliding path for the support body, and the support body is slidably guided in the first guide groove, so as to avoid the problem of the support body being separated from the pivotal part during use.

[0036] Furthermore, the pivoting part is disc-shaped, the first guide groove runs through from one axial side of the pivoting part to the other axial side, and the support body extends into the first guide groove in a direction parallel to the first axis. The pivoting part uses a flat disc-shaped structure, which can reduce its own axial thickness and thus reduce the demand for axial space; the first guide groove runs through the pivoting part axially, which can make the pivoting part and the torque output component as close as possible under the premise of achieving free support, reducing the demand for axial space after the two cooperate, which is beneficial to the internal layout of the host, so that the host can be made thinner, or more space is allowed inside the host for other components or functions; because the support body freely supports one end of the first guide groove, whether the hanger is flipped down in response to the gravity moment or driven to flip up by the actuation moment, the pivoting part must bear the shear force, and the end of the first guide groove supported by the support body can disperse this shear stress to other areas of the pivoting part to avoid stress concentration. The flat disc-shaped pivoting part is used because it can reduce the demand for axial space and reduce material usage without sacrificing strength and durability.

[0037] Furthermore, the torque output component is provided with an arc-shaped second guide groove around the first axis, and a guide pin is axially extended from a portion of the pivot portion that deviates from the second axis, and the guide pin is slidably guided in the second guide groove, and one end of the second guide groove constitutes the support body. Another structure of the support body is to provide a second guide groove on the torque output component to freely support the guide pin on the pivot portion, which can also achieve the purpose of the guide pin being able to separate from the support body in the reverse direction when encountering resistance when the hanger is turned over and descended.

[0038] Furthermore, the hanger flips and rises around the second axis between a first position and a second position lower than the first position, the rotation direction from the first position to the second position is defined as the first direction, and the rotation direction from the second position to the first position is defined as the second direction. When the hanger is in the first position, it maintains a rotation tendency toward the second position along the first direction under the action of the gravity moment, and the torque output component outputs an actuating torque in the second direction to the hanger through the support body to drive the hanger to rotate toward the first position along the second direction. The direction of the hanger flipping and rising is limited so that the gravity moment can always maintain a rotation tendency from the first position to the second position, and the support body is kept in a lifting state for the pivoting part during the hanger flipping and rising, so as to control the speed of the hanger flipping and rising. Moreover, the limitation of the hanger flipping and rising direction can also make the electric hanger better adapt to the use of the electric hanger carrier scene with one side open, such as in a wardrobe. Furthermore, in a two-dimensional orthogonal coordinate system constructed with the second axis as the origin, the center of gravity of the hanger when in the first position is located in the first quadrant, and the center of gravity of the hanger when in the second position is located in one of the first quadrant, the fourth quadrant, and the positive semi-axis X. The gravity of the hanger is always able to generate a gravity torque around the second axis, so that the hanger always has a tendency to move toward the second position, and when the actuating torque in the second direction output by the torque output component to the hanger through the support body is less than the gravity torque of the hanger, the hanger can immediately achieve a flipping and descending action without giving the hanger an initial torque.

[0039] Furthermore, the first axis and the second axis coincide. This means that the first axis of the torque output component and the second axis of the hanger pivot are the same axis. During the turning process of the hanger, the distance from the part of the pivot freely supported by the support body to the axis remains basically unchanged. No matter how the hanger is turned over or lifted, the length of the lever arm of the actuating torque is basically constant. The hanger thus obtains a stable actuating torque, and the stability of the hanger during the lifting process is guaranteed, reducing the instability factors caused by the change of the lever arm. The coincidence of the axes can simplify the design of the electric hanger, making the mechanical connection between the torque output component and the hanger more direct and efficient. When the user operates the hanger, due to the constant lever arm, the expected same force output by the torque output component will result in the same hanger movement, improving the consistency and predictability of the operation.

[0040] Furthermore, a positioning ring is arranged around the first axis on the torque output component, a positioning hole is arranged on the pivotal part, and the positioning ring is matched in the positioning hole for centering and rotation support of the pivotal part. The positioning ring and the positioning hole are matched to ensure the coaxiality of the torque output component and the pivotal part on the one hand, and increase the contact area between the pivotal part and the torque output component on the other hand, thereby improving the torque bearing capacity of the pivotal part and the torque output component.

[0041] Further, a torque limiting clutch is connected between the positioning ring and the pivoting part, and the torque limiting clutch enables the pivoting part and the positioning ring to keep synchronous rotation under a predetermined torque. According to the present invention, a free support protection mechanism is proposed. When the torque output component outputs an actuating torque in the first direction, the hanger responds to the gravity torque and flips down. It is required that the hanger should generate a gravity torque when it is in a high position. Assuming that the hanger is in a high position and is in a position where the gravity torque is zero, it is a critical position. The hanger is deflected in the first direction by a certain angle so that it passes the zero position to generate the gravity torque. Despite this, in actual use, the main machine installation error is inevitable, causing the hanger to deflect in the opposite second direction and pass the zero position. At this time, the hanger cannot respond to the gravity torque and flip down in the first direction when the torque output component outputs the actuating torque in the first direction. Therefore, a torque limiting clutch is designed. When the above situation occurs, the torque limiting clutch transmits power to deflect the hanger in the first direction so that it passes the zero position to generate the gravity torque, but the torque limiting clutch itself does not need to participate in the normal flipping of the hanger.

[0042] Furthermore, the torque limiting clutch includes a preload, a transmission pin and a transmission groove, one of the pivoting part and the positioning ring is provided with a preload and a transmission pin that abut against each other, and the other is provided with a transmission groove, and the transmission pin is preloaded by the preload and engaged in the transmission groove. The preload gives a certain preload force to the transmission pin through the preload, so that it can be kept in the transmission groove, so that a certain torque can be transmitted, and when the torque is too large, the transmission pin can overcome the preload force of the preload and escape from the transmission groove, thereby ensuring the safety of the actuating unit.

[0043] Furthermore, the torque limiting clutch includes at least two transmission grooves spaced apart in the circumferential direction. When the hanger is turned over and descended, the transmission pin engages one of the transmission grooves, and the hanger can be operated to rotate in the second direction and separate from the support body in the opposite direction, and the transmission pin engages another transmission groove in the second direction. After the host is accidentally powered off, the hanger can be manually turned up until the transmission pin cooperates with the other transmission groove, fixing the hanger in a position where it can be stored, thereby avoiding the problem that the turned-down hanger cannot be stored and positioned due to an accidental power outage.

[0044] Furthermore, the electric clothes hanger also includes a controller and a detection unit, the detection unit detects the turning and lifting process of the clothes hanger, and can trigger an obstruction signal when the clothes hanger rotates in the second direction during the turning and lowering process in the first direction, and the controller is configured to control the actuation unit to stop or reverse according to the obstruction signal. Even if the detection unit finds out whether the clothes hanger encounters an obstruction during the turning and lifting process, the controller can timely control the actuation unit to act.

[0045] Furthermore, the detection unit includes a Hall sensor and a magnetic component, the Hall sensor is fixed in the host, the magnetic component is installed on the pivot part, and the overturning and descending process of the hanger around the second axis can be continuously detected by the Hall sensor. Through the Hall sensor and the magnetic component, it is possible to accurately detect whether the relative positions of the two change without contact, and generate a more accurate detection signal, and the overturning and descending process of the hanger around the second axis can be continuously detected by the Hall sensor, that is, the Hall sensor continuously detects the overturning and descending process of the hanger through the change of the magnetic field during this process, and once the hanger is blocked, it can send a signal in the first time to control the action of the actuating unit through the controller.

[0046] Furthermore, the actuating 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, and the worm gear, the planetary reducer and the torque output component of the worm gear mechanism are coaxially driven. The output speed can be reduced by the planetary reducer, so as to more accurately control the position of the hanger flipping and lifting, and the planetary reducer can output a larger torque to improve the load-bearing capacity of the hanger, and the worm gear mechanism does not move along the axial direction of the worm during the movement, which is conducive to reducing the volume of the host.

[0047] Furthermore, the worm and worm gear mechanism has a built-in self-locking structure, and the self-locking structure includes at least one of the following structures: the spiral teeth of the worm and the gear teeth of the worm wheel form a one-way friction self-locking, so that the worm can drive the worm wheel but the worm wheel cannot drive the worm; the non-meshing section of the worm is equipped with a friction ring, and the friction ring holds the worm tightly and implements one-way self-locking when the worm is subjected to the load torque of the hanger and has a reverse trend; the self-locking structure allows the hanger to hover at any position during the flipping and lifting process. The self-locking structure allows the hanger to hover at any position during the flipping and lifting process, realizing stepless control of the position of the hanger during the flipping and lifting process, and the user can stop the hanger at the best position to take and put clothes as needed.

[0048] Furthermore, the planetary reducer includes at least two coaxially connected planetary gear trains, the sun gear of the first planetary gear train is coaxially driven with the worm gear, the planetary retainer of the terminal planetary gear train is coaxially driven with the torque output component, or the planetary retainer of the terminal planetary gear train serves as the torque output component. The two-stage planetary reducer can achieve a higher transmission ratio, and the connection setting of the first planetary gear train and the terminal planetary gear train makes the internal structure of the entire main engine more compact.

[0049] Furthermore, the actuating unit further comprises a centering shaft which is non-rotatably arranged in the main machine, the worm gear, the planetary reducer and the torque output component are penetrated by the centering shaft to form a coaxial arrangement, and the axis of the centering shaft determines the first axis. The centering shaft provides a reference for the coaxiality of the worm gear, the planetary reducer and the torque output component, so that they can all rotate stably around the first axis, so as to ensure the stability of power transmission when the actuating unit and the torque output component are in operation.

[0050] Furthermore, the host includes a casing for accommodating an actuating unit and a torque output component, the actuating unit includes a reduction box for accommodating a reduction unit, the ring gear of the planetary reducer is fixed on the reduction box or constitutes a part of the reduction box, the electric clothes hanger also includes a load-bearing member fixed on the electric clothes hanger carrier, the reduction box is provided with a torque transmission component, the torque transmission component passes through a through hole on the casing and is connected to the load-bearing member, and the load torque of the hanger is guided by the torque transmission component and bypasses the casing to reach the load-bearing member directly. By providing a torque transmission component that passes through the casing and is connected to the load-bearing member, the casing no longer bears the load torque of the hanger, and the casing will only serve to accommodate the actuating unit and the torque output component. The load-bearing capacity of the electric clothes hanger is no longer restricted by the strength of the casing, so that the load-bearing capacity of the entire electric clothes hanger is improved.

[0051] Furthermore, a concave cavity is provided on the outer side of the housing, and the load-bearing member is at least partially accommodated in the concave cavity. By accommodating at least part of the load-bearing member in the concave cavity, the housing can be closer to the cabinet during installation, reducing the exposed part of the load-bearing member, improving the overall aesthetics, and also reducing the space occupied by the host on the electric clothes hanger carrier, thereby improving the space utilization rate of the electric clothes hanger carrier.

[0052] Furthermore, the torque transmission component includes a torque transmission rod and a flange extending radially outward on the torque transmission rod, the load-bearing member is provided with a load-bearing groove with an upper opening, the torque transmission rod is hooked in the load-bearing groove through the opening, and the flange and the load-bearing member around the load-bearing groove form an axial stop to limit the axial movement of the torque transmission component. The axial movement of the torque transmission component is limited by the flange on the torque transmission rod and the stop of the load-bearing member, that is, the fixed connection between the host and the load-bearing member is achieved.

[0053] Furthermore, the torque output component has a centering hole penetrated by the first axis, the housing is provided with a centering seat, the centering seat is axially embedded in the centering hole and a first radial bearing is arranged between the two, and a second radial bearing is arranged between the worm wheel of the worm gear mechanism and the reduction box. The torque output component and the worm wheel are both located outside the reduction box. In order to ensure that the torque output component can stably rotate around the first axis, a first radial bearing is arranged between the centering hole of the torque output component and the centering seat of the housing, and the reduction box is generally fixedly connected to the housing. In order to ensure that the worm wheel stably rotates around the first axis, a second radial bearing is arranged between the worm wheel and the reduction box. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 This is a schematic diagram of the structure of the electric clothes hanger of the present invention when it is in use;

[0055] Figure 2 It is a schematic diagram of the structure of the electric clothes hanger of the present invention;

[0056] Figure 3 The explosion of the host in the present invention Figure 1 ;

[0057] Figure 4 The explosion of the main engine and the boom in the present invention Figure 1 ;

[0058] Figure 5 It is a front view of the main machine and the boom in the present invention when they are connected in the first position;

[0059] Figure 6 It is a rear view of the connection between the main engine and the boom in the present invention;

[0060] Figure 7 The explosion of the host in the present invention Figure 2 ;

[0061] Figure 8 The explosion of the main engine and the boom in the present invention Figure 2 ;

[0062] Fig. 9 It is an exploded view of the host in the present invention;

[0063] Fig.10 It is an exploded view of the main machine and the load-bearing parts in the present invention;

[0064] Fig.11 It is a schematic diagram of the structure when the torque transmission component of the present invention is ready to be clamped into the load-bearing component;

[0065] Fig.12 It is a schematic diagram of the structure after the torque transmission component of the present invention is clamped into the load-bearing component;

[0066] Fig.13 is a three-dimensional diagram of the load-bearing member of the present invention;

[0067] Fig.14 is a cross-sectional view of the host in the present invention;

[0068] Fig.15 A cross-sectional view showing the connection between the suspension arm and the hanger rod in the present invention;

[0069] Fig.16 The explosion of the corner piece and the rotating connecting piece in the present invention Figure 1 ;

[0070] Fig.17The explosion of the corner piece and the rotating connecting piece in the present invention Figure 2 ;

[0071] Fig.18 It is a front view of the main machine when it is connected to the boom in the second position in the present invention;

[0072] Fig.19 It is a schematic diagram of the structure when the boom of the present invention encounters resistance when turning over and descending;

[0073] Fig. 20 It is a structural schematic diagram of the present invention after the boom is flipped down and the power is cut off, and the boom is manually pushed back to the first position.

[0074] The accompanying drawings are marked as follows:

[0075] Host 100, actuating 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 retainer 1127, centering shaft 113, reduction box 114, second fixing portion 1141, torque transmission component 115, torque transmission rod 1151, flange 1152, first fixing portion 1153, positioning portion 1154, torque output component 120, support body 121, positioning ring 122, centering hole 123, housing 130, through hole 131, concave cavity 132, centering seat 133, first radial bearing 140, second radial bearing 150;

[0076] The hanging arm 210, the pivoting portion 211, the first guide slot 2111, the positioning hole 2112, the fixing slot 2113, the connecting portion 212, and the hanger rod 220;

[0077] Torque limiting clutch 300, preload member 310, transmission pin 320, transmission slot 330;

[0078] Hall sensor 410, magnetic component 420;

[0079] The load-bearing member 500, the load-bearing groove 510, the abutting portion 511, and the accommodating portion 512;

[0080] Metal hangers 600;

[0081] The third radial bearing 710, the first docking member 720, the first docking shaft 721, the second docking shaft 722, the first axial limiting surface 723, the second docking member 730, the second axial limiting surface 731, the connecting hole 740, the second positioning portion 741, the first fixing member 750, the shielding member 760, the corner member 770, and the plug hole 771;

[0082] Cabinet 800. DETAILED DESCRIPTION

[0083] Electric clothes hanger, including:

[0084] The host 100 includes an actuating unit 110 and a torque output component 120. The torque output component 120 is driven to rotate around a first axis L1 by a deceleration torque provided by the actuating unit 110. A support body 121 is provided on the torque output component 120 away from the first axis L1.

[0085] The clothes hanger comprises a suspension arm 210 having a pivot portion 211 and a hanger rod 220 attached to the suspension arm 210, wherein the pivot portion 211 is pivotally connected to the host 100 to form a second axis L2, and the clothes hanger can be flipped and raised and lowered around the second axis L2, and a portion of the pivot portion 211 that deviates from the second axis L2 is freely supported by the support body 121, so that the clothes hanger flips and descends in response to the gravity torque when the torque output component 120 outputs an actuating torque in a first direction, and the clothes hanger can be operated to rotate in the opposite second direction and separate from the support body 121 in the opposite direction during the process of flipping and descending along the first direction.

[0086] The pivoting part 211 on the suspension arm 210 is freely supported by the support body 121 on the torque output component 120, so that the hanger is turned over and descended in response to the gravity torque when the torque output component 120 outputs the actuating torque in the first direction, and the hanger can be operated to rotate in the opposite second direction and reversely separate from the support body 121 during the process of turning over and descending along the first direction, thereby solving the problem of poor reliability of the existing electric hanger in encountering resistance detection. The part of the pivoting part 211 of the suspension arm 210 that deviates from the second axis L2 is freely supported by the support body 121, so that the hanger is turned over and descended in response to the gravity torque when the torque output component 120 outputs the actuating torque in the first direction, and the torque output component 120 supports the hanger through the support body 121, controlling the speed and position of the hanger turning over and descending, and the hanger can be operated to rotate in the second direction opposite to the first direction during the process of turning over and descending along the first direction, thereby reversely separating from the support body 121. This means that if the hanger encounters an obstacle during the descent process, the pivoting portion 211 can be reversely separated from the supporting body 121, which will not hinder the operation of the actuating unit 110 at least in the short term, and protect the actuating unit 110 from damage, because the hanger is not driven by the actuating unit 110 to forcibly descend. Once an obstacle is encountered, the hanger can remain in the current position without continuously squeezing the obstacle. The obstacle only bears the gravity of the hanger without being applied with the actuating torque of the actuating unit 110, which at least ensures that people or objects are protected from secondary damage by the actuating unit 110, i.e., the so-called anti-pinch function. This free-support protection mechanism realizes the anti-pinch function when encountering obstacles with a simpler and more stable mechanical structure, reduces the dependence of the electric hanger on sensors, avoids the need for complex electronic sensors, reduces costs and maintenance difficulties, and fundamentally solves various problems caused by relying solely on sensors to detect obstacles. More advantageously, in the case of obstacles, the hanger can rotate in a second direction opposite to the first direction, which makes it easier for users to remove obstacles, thereby eliminating obstacles and improving convenience of use.

[0087] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0088] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0089] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0090] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0091] Embodiment 1:

[0092] See also Figures 1 to 8 This is the first embodiment of the electric clothes hanger of the present invention. The electric clothes hanger includes a host 100 and a clothes hanger installed on the host 100. In this embodiment, two hosts 100 are respectively fixedly installed on two opposite side walls of the wardrobe. The clothes hanger includes a suspension arm 210 and a clothes hanger rod 220. Each host 100 is connected to a suspension arm 210. The clothes hanger rod 220 is connected between the two suspension arms 210. The two suspension arms 210 are controlled by the host 100 to rotate and lift synchronously, thereby driving the clothes hanger rod 220 to rotate and lift. In this way, clothes are hung on the clothes hanger rod 220. When the clothes need to be taken away, the host 100 controls the suspension arm 210 to rotate downward to a designated position, and the user can conveniently take away the clothes on the clothes hanger rod 220; when the use is finished, the host 100 drives the suspension arm 210 to rotate upward, so that the clothes hanger rod 220 drives the clothes back to the storage position in the wardrobe.

[0093] The host 100 includes an actuating unit 110 and a torque output component 120. The actuating unit 110 is mainly used to provide an actuating force. The torque output component 120 is driven to rotate around the first axis L1 by the deceleration torque provided by the actuating unit 110. A support body 121 is set on the torque output component 120 away from the first axis L1, that is, the torque output component 120 is driven to rotate by the actuating unit 110 to generate torque and output the torque through the support body 121, and the actuating unit 110 needs to provide a deceleration torque, which can improve the control accuracy, avoid the overturning and lifting speed of the hanger too fast, and accurately control the stop position of the hanger. The overturning and lifting can be divided into two processes: overturning and descending, and overturning and ascending. Overturning and descending means that the hanger moves to the outside of the cabinet and descends in height at the same time, and the trajectory is an arc; overturning and ascending is opposite to the overturning and descending trajectory, and the hanger moves upward and rises in height at the same time, and the trajectory is still an arc.

[0094] A pivoting portion 211 is provided on the suspension arm 210, and the pivoting portion 211 is pivotally connected to the main unit 100 to form a second axis L2. The hanger can be flipped and raised around the second axis L2. The portion of the pivoting portion 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 hanger in which the power part and the suspension arm 210 are matched through similar shaft holes. If the hanger rod 220 of the existing electric hanger encounters resistance during the rotation and descent process, the actuating unit 110 in the main unit 100 will also stop operating, and the actuating unit 110 will be damaged. At the same time, the actuating unit 110 will continue to output actuating torque to the hanger after the hanger is blocked during the flipping and descent process, causing squeezing of a third party and causing mechanical damage for the third time. In this embodiment, the portion of the pivotal portion 211 that deviates from the second axis L2 is freely supported by the support body 121, which means that the support body 121 lifts the pivotal portion 211 upward, and does not restrict the pivotal portion 211 in the upward rotation direction of the suspension arm 210. During the flipping and descending process of the hanger, once the hanger is blocked, the pivotal portion 211 will be disengaged from the support body 121. The disengagement means that the support body 121 will no longer generate an actuating torque on the pivotal portion 211, so that the actuating unit 110 can be protected from damage and mechanical damage to a third party can be avoided, thereby playing an anti-pinch role.

[0095] The above structure enables the hanger to flip down in response to the gravity torque when the torque output component 120 outputs the actuating torque in the first direction, and the hanger can be operatively rotated in the opposite second direction and reversely separated from the support body 121 during the process of flipping down along the first direction. Figure 5As shown, the first direction is the direction in which the arm 210 rotates downward, i.e., the clockwise direction, and the second direction is the direction in which the arm 210 rotates upward, i.e., the counterclockwise direction. When the hanger rod 220 needs to rotate downward, the actuating unit 110 moves, and generates an actuating force on the pivoting portion 211 through the torque output component 120. At this time, the actuating torque on the hanger is smaller than the gravity torque generated by the hanger and the clothes hanging thereon. Therefore, the hanger will flip down along the first direction under the influence of the gravity torque. The speed at which the hanger flips down is determined by the difference between the gravity torque and the actuating torque. The greater the difference, the greater the speed at which the hanger flips down. Therefore, the speed at which the hanger flips down can be controlled by the actuating unit 110. During the process of the hanger flipping and falling, since the support body 121 only supports the pivot part 211, the hanger is obstructed at this time, and the part of the pivot part 211 that was originally supported by the support body 121 will be separated from the support body 121, that is, the hanger stops rotating and flipping down, while the torque output component 120 continues to move, and the actuating unit 110 will not stop working due to the resistance generated by the obstruction of the hanger, thereby protecting the main unit 100.

[0096] like Figures 4 to 6 As shown, further, an arc-shaped first guide groove 2111 is provided on the pivoting portion 211 around the second axis L2, and the support body 121 is slidably guided in the first guide groove 2111. When the hanger is turned over and lowered, the support body 121 freely supports one end of the first guide groove 2111. By providing the first guide groove 2111, a certain sliding path is provided for the support body 121, and the support body 121 is slidably guided in the first guide groove 2111, thereby preventing the support body 121 from being separated from the pivoting portion 211 during use. Moreover, the first guide groove 2111 is an arc-shaped guide groove provided around the second axis L2, and the pivoting portion 211 rotates along the second direction and also turns around the second axis L2. Therefore, when the hanger is turned over and lowered and subjected to external force, the support body 121 will slide in the first guide groove 2111, thereby realizing the reverse separation of the support body 121 and the pivoting portion 211. Moreover, one end of the first guide groove 2111 is used as a portion freely supported by the support body 121, as shown in FIG. Figure 5As shown, the first direction is clockwise, the support body 121 on the right side and the top of the first guide groove 2111 on the right side are freely supported, and the support body 121 on the left side and the bottom of the first guide groove 2111 on the left side are supported. When the hanger flips over and descends, the support body 121 generates an actuating torque in the counterclockwise direction; and when the descent of the hanger is blocked, the support body 121 will continue to rotate in the first direction along the first guide groove 2111 to achieve the separation of the support body 121 and the pivot part 211. Since the support body 121 is generally made into a component that protrudes toward the pivot part, such as a column or a block, if a protruding component similar to the support body 121 is also made on the pivot part 211, 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 part 211 will be fully applied to the protruding component on the pivot part 211, which will cause huge stress to be generated at the root of the component and reduce the ability of the pivot part 211 to withstand the actuation torque. By providing a first guide groove 2111 on the pivot part 211 to cooperate with the support body 121, the above-mentioned stress concentration can be avoided, thereby increasing the ability of the pivot part 211 to withstand the actuation torque.

[0097] like Figure 4 , Figure 5 As shown, further, the specific pivot part 211 is disc-shaped, which can reduce its own axial thickness and thus reduce the demand for axial space; the center of the pivot part 211 is pivoted to the host 100, and the first guide groove 2111 can be a blind groove opened toward the support body 121 or a through groove. In this embodiment, the first guide groove 2111 is a through groove, which runs from one axial side of the pivot part 211 to the other axial side, and 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 can make the pivot part 211 and the torque output component 120 as close as possible, reducing the demand for axial space after the two are matched, which is beneficial to the internal layout of the host 100, and the host 100 can therefore be made thinner, or more space is allowed inside the host 100 for other components or functions.

[0098] And the first guide groove 2111 is axially passed through from the pivot part 211, that is, the support body 121 should protrude from the torque output component 120, so that the contact area between the support body 121 and the first guide groove 2111 can be increased, the strength requirement for the materials of the support body 121 and the pivot part 211 is reduced, and the support body 121 can be effectively prevented from sliding out of the first guide groove 2111. At this time, the support body 121 can also be made into a columnar structure, such as a cylindrical shape, and the corresponding first guide groove 2111 The end supported by the support body 121 is also arc-shaped, not only can it have a larger contact area with the first guide groove 2111 during the flipping and descending process of the hanger, but also after the hanger is blocked, the cylindrical support body 121 is not easy to get stuck when contacting the side wall of the first guide groove 2111, so that the torque output component 120 can continue to smoothly rotate relative to the pivot part 211.

[0099] In addition to the above-mentioned connection structure between the pivoting portion 211 and the support body 121, an arc-shaped second guide groove can be provided on the torque output component 120 around the first axis L1, and a guide pin is axially extended from the portion of the pivoting portion 211 deviating from the second axis L2, and the guide pin is slidably guided in the second guide groove, and one end of the second guide groove constitutes the support body 121. The matching mode of using the second guide groove and the guide pin in this solution is similar to the structural form in the aforementioned embodiment, except that the guide groove is provided on the torque output component 120, and the effect of this solution is basically the same as that of the solution in the aforementioned embodiment.

[0100] like Figure 4 , Figure 5 As shown, in this embodiment, the hanger is turned up and down around the second axis L2 between the first position and the second position lower than the first position, that is, the horizontal height of the hanger in the first position is higher than the horizontal height of the second position, and the host 100 will drive the hanger to rotate back and forth between the first position and the second position to achieve turning and lifting. The first position is generally the storage position of the electric hanger, that is, in this position, the hanger is located in the wardrobe as a whole; the second position is a hanger position for users to take and put clothes, and the user can set this position according to their own needs. The direction of rotation from the first position to the second position is defined as the first direction, that is, Figure 5 The clockwise direction in ; the direction of rotation from the second position to the first position is defined as the second direction, that is, Figure 5 The above definition prevents the hanger from flipping from the first position to the second position in the counterclockwise direction around the second axis L2. This flipping method is not applicable to the scenario of the electric hanger carrier with one side open. That is, the above definition allows the electric hanger to be used in a scenario with one side open such as a wardrobe, and during the process of the hanger flipping and lifting, the support body 121 continues to hold the pivot part 211, and continues to control the speed of the hanger flipping and lifting.

[0101] When the hanger is in the first position, it maintains a rotational tendency toward the second position along the first direction under the action of the gravity moment, and the torque output component 120 outputs an actuating torque in the second direction to the hanger through the support body 121 to drive the hanger to rotate toward 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 gravity moment relative to the second axis L2. If the suspension arm 210 is only acted upon by the gravity moment at this time, the hanger will rotate from the first position along the first direction to the second position. Therefore, the torque output component 120 outputs an actuating torque in the second direction to the hanger through the support body 121. The movement and position of the hanger can be controlled by controlling the magnitude of the actuating torque. For example, when the actuating torque is equal to the gravity moment of the hanger and is opposite in direction, the hanger will be in a stopped state; if the actuating torque is greater than the gravity moment, the hanger can be driven to rotate along the second direction; if the actuating torque is less than the gravity moment, the hanger rotates along the first direction driven by the gravity moment, and the speed of the hanger flipping and falling is controlled by the magnitude of the actuating torque.

[0102] Furthermore, since users usually open the door of the wardrobe to take out clothes, in order to limit the hanger to rotate only in the direction of the wardrobe door opening, the position of the center of gravity of the hanger is limited. Figure 5 In the two-dimensional orthogonal coordinate system constructed with the second axis L2 as the origin, the center of gravity of the hanger when it is in the first position is located in the first quadrant, and the center of gravity of the hanger when it is in the second position is located in one of the first quadrant, the fourth quadrant and the positive semi-axis of X. The gravity of the hanger can always generate a gravity torque around the second axis L2, so that the hanger always has a tendency to move to 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 gravity torque of the hanger, the hanger can immediately achieve the flipping and descending action without giving the hanger an initial torque. The greater the angle of the center of gravity of the hanger deviates from the positive semi-axis of Y, the stronger the tendency of the hanger to move to the second position, and the greater the actuating torque of the torque output component 120 to keep the hanger in the first position. Therefore, the angle between the center of gravity of the hanger and the positive semi-axis of X is generally set to be about 88°.

[0103] In order to better control the rotation trajectory of the torque output component 120 and the rotation trajectory of the pivot part 211, reduce the design difficulty of the two, and reduce the relative displacement of the support body 121 and the pivot part 211 during the flipping and lifting of the hanger, the first axis L1 and the second axis L2 coincide, and the force arm of the actuating force will not change during the flipping and lifting of the hanger. Therefore, the supporting position of the support body 121 on the torque output component 120 to the pivot part 211 remains unchanged, and the actuating force has a constant actuating force arm, so the size of the actuating torque can be easily obtained, and the trajectory of the flipping and lifting of the hanger is an arc shape, and the change of the gravity torque can also be easily obtained. In this way, the flipping and lifting speed of the hanger can be accurately controlled by controlling the size of the actuating force, such as realizing the flipping and lifting of the hanger at a constant speed, or realizing the hanger adjusting the flipping and lifting speed according to a set rate change.

[0104] In this embodiment, in order 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 part are the same axis. During the flipping process of the hanger, the distance from the part of the pivot part 211 that is freely supported by the support body 121 to the axis remains basically unchanged. No matter how the hanger is flipped or lifted, the length of the lever arm of the actuating torque is basically constant. The hanger thus obtains a stable actuating torque, and the stability of the hanger during the lifting process is guaranteed, reducing the instability factors caused by the change of the lever arm. The coincidence of the axes can simplify 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, due to the constant lever arm, the expected same force output by the torque output component 120 will result in the same hanger movement, thereby improving the consistency and predictability of the operation.

[0105] Going further, Figure 4 , Figure 8As shown, the torque output component 120 and the pivot part 211 are matched with an axial hole. Specifically, a positioning ring 122 is arranged around the first axis L1 on the torque output component 120, and a positioning hole 2112 is provided on the pivot part 211. The positioning ring 122 cooperates with the positioning hole 2112 for centering and rotation support of the pivot part 211, and this arrangement can expand the contact area between the pivot part 211 and the host 100, which is more stable during the flipping and lifting process of the hanger. A torque limiting clutch 300 is connected between the positioning ring 122 and the pivoting portion 211. The torque limiting clutch 300 enables the pivoting portion 211 and the positioning ring 122 to maintain synchronous rotation under a predetermined torque. Through the torque limiting clutch 300, the positioning ring 122 and the pivoting portion 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 Y positive semi-axis and is located in the second quadrant, the torque output component 120 can also 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 a separated state, that is, the pivoting portion 211 is disengaged from the positioning ring 122, thereby realizing the anti-pinch function.

[0106] In actual use, it is inevitable that there will be an installation error of the host 100, resulting in the hanger not having the gravity moment to flip and descend from the first direction to the second position. For example, at this time, the center of gravity of the hanger is located in the second quadrant or on the positive half axis of Y, and the center of gravity of the hanger is located on the Y axis, which is also the critical position of the hanger gravity moment. At this time, the gravity of the hanger vertically passes through the second axis L2, and the hanger gravity moment is zero. In this case, the positioning ring 122 on the torque output component 120 can also be used through the torque limiting clutch 300 to drive the pivoting part 211 to rotate, so that the hanger passes through the critical position where the gravity moment is zero, so that the gravity moment of the hanger can drive the hanger to flip and descend from the first direction to the second position again, and the torque limiting clutch 300 will not affect the original matching structure of the support body 121 and the pivoting part 211. The torque generated when the hanger is blocked can make the torque limiting clutch 300 in a disengaged state, disconnect the power transmission between the pivoting part 211 and the positioning ring 122, protect the host 100 and prevent the actuating force of the hanger from causing mechanical damage to a third party after encountering an obstacle.

[0107] Specifically, the torque limiting clutch 300 includes a preload 310, a transmission pin 320 and a transmission groove 330. One of the pivot part 211 and the positioning ring 122 is provided with a preload 310 and a transmission pin 320 that abut against each other, and the other is provided with a transmission groove 330. The transmission pin 320 is preloaded by the preload 310 and combined in the transmission groove 330. In this embodiment, the transmission groove 330 is arranged on the positioning ring 122, and a fixing groove 2113 is opened on the pivot part 211. The preload member 310 abuts between the inner wall of the fixing groove 2113 and the transmission pin 320. The transmission pin 320 is slidably arranged in the fixing groove 2113. The fixing groove 2113 is provided with an opening at one end facing the transmission groove 330 so as to allow the transmission pin 320 to partially pass through the fixing groove 2113 and extend into the transmission groove 330. The preload member 310 applies a preload force to the transmission pin 320 in the direction of the transmission groove 330. Therefore, under normal transmission conditions, a part of the transmission pin 320 is located in the transmission groove 330, and a part of it is located in the fixing groove 2113, which serves the purpose of driving 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 along the radial direction of the positioning ring 122. There is an inclined surface contact or an arc surface contact between the two. When the hanger is blocked and a large resistance torque is generated, the force exerted on the transmission pin 320 by the inner wall of the transmission groove 330 will cause the transmission pin 320 to overcome the preload force of the preload member 310 and exit the transmission groove 330, so that the positioning ring 122 and the pivot part 211 are separated.

[0108] Furthermore, in some special cases, such as when there is a power outage after the hanger moves to the second position, the user still hopes to push the hanger back to the first position in order to close the cabinet door. Although the user applies force to the hanger to separate the transmission pin 320 and the transmission slot 330 of the torque limiting clutch 300 and manually pushes 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 is affected by its own gravity torque and cannot remain in the first position. After the user removes the manual support, the hanger will still flip to the second position, causing the cabinet door to be unable to close. Figure 4 , Fig. 20As shown, in order to solve the above problem, the torque limiting clutch 300 includes at least two transmission grooves 330 spaced apart in the circumferential direction. When the hanger is turned over and descended, the transmission pin 320 engages one of the transmission grooves 330, and the hanger can be operated to rotate in the second direction and reversely separate from the support body 121, and the transmission pin 320 engages another transmission groove 330 in the second direction. That is, when the electric hanger is operating normally, the transmission pin 320 cooperates with the transmission groove a to drive the hanger to turn over and descend. When the host 100 is powered off, the hanger is manually pushed back from the second position to the first position, and the transmission pin 320 is inserted into the transmission groove b, thereby fixing the hanger in the first position. After the power is on, the hanger is manually turned over and descended to the second position, and the transmission pin 320 is inserted back into the transmission groove a, and then the hanger is driven back to the first position by the host 100. Of course, according to the different angles at which the hanger is to be fixed, the transmission groove 330 can also be set at more different positions. More than one set of torque limiting clutches 300 may be provided. For example, in the present embodiment, two sets of torque limiting clutches 300 are provided to ensure that the force between the positioning ring 122 and the pivoting portion 211 is as uniform as possible.

[0109] Although the actuating unit 110 and the torque output component 120 are blocked during the process of the clothes hanger turning over and descending, they can continue to move without being damaged, but the actuating unit 110 cannot be kept running all the time and needs to be stopped in time. Figure 3 As shown, the electric clothes hanger also includes a controller and a detection unit. The detection unit detects the turning and lifting process of the clothes hanger, and can trigger an obstruction signal when the clothes hanger turns in the second direction during the turning and descending process in the first direction. The controller is configured to control the actuating unit 110 to stop or reverse according to the obstruction signal. That is, the detection unit detects whether the state of the clothes hanger turning and lifting is consistent with the running state of the actuating unit 110. For example, if the actuating 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 controls the actuating unit 110 to stop running immediately or run in the reverse direction.

[0110] There are many detection units such as pulse encoders, grating rulers, etc. 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 in the host 100, and the magnetic component 420 is installed on the pivot 211. The process of the hanger turning around the second axis L2 can be continuously detected by the Hall sensor 410. Therefore, once the hanger stops moving due to resistance, the Hall sensor 410 can sense the running state of the magnetic component 420 and send a signal, and quickly send an action instruction to the actuating unit 110 through the controller. For example, during the process of the hanger turning over and falling, the magnetic field generated by the magnetic component 420 sensed by the Hall sensor 410 becomes stronger and stronger, thereby judging that the process of the hanger turning over and falling 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 turning over and falling, it means that the hanger stops or moves in the second direction due to resistance during the process of turning over and falling, and the Hall sensor 410 will immediately send a signal to the controller, and the controller sends an instruction to the actuating unit 110 to stop or reverse operation.

[0111] When the above scheme is implemented, Figure 5 As shown, when the user needs to take or put clothes, he presses the control button on the host 100, the actuating unit 110 is started, and the support body 121 on the torque output component 120 is driven to rotate along the first direction (clockwise). When the support body 121 rotates along the first direction, the pivot part 211 will rotate along the first direction with the support body 121 under the action of the hanger gravity moment, so that the hanger is turned over and lowered. In this process, the speed of the hanger turning over and lowering can be controlled by controlling the rotation speed of the actuating unit 110, that is, by adjusting the actuating torque of the support body 121 on the pivot part 211, the descending speed of the suspension arm 210 can be controlled; in this process, the Hall sensor can be used to control the rotation speed of the hanger 121. 410 senses the position of the magnetic component 420. When the pivot part 211 rotates to a specified angle, that is, when the arm 210 drops to a specified height, the Hall sensor 410 sends a signal to the controller. The controller controls the actuating unit 110 to stop running. The actuating unit 110 allows the arm 210 to stay in the current position through self-locking and other means, so that the user can take and put clothes conveniently. When the user has finished taking and putting, he presses the control button on the top of the arm 210, and the torque output component 120 starts in reverse, generating an actuating torque to lift the pivot part 211 and rotate it in the second direction (counterclockwise) through the support body 121, so as to realize the flipping and rising of the hanger and return the arm 210 to its initial position.

[0112] The normal turning down of the boom 210 will be as follows: Figure 5 The first position shown flips down to Fig.18 The second position shown. Fig.19As shown, during the flipping and descending process of the hanging arm 210, if the clothes hanger hits an obstacle, since the torque output component 120 is rotating in the first direction at this time, the support body 121 will not generate an actuating torque in the second direction on the hanging arm 210, and the pivot part 211 will be separated from the support body 121 in the first direction. That is, after the clothes hanger hits the obstacle, the hanging arm 210 can stop flipping and descending while the actuating unit 110 and the torque output component 120 can continue to move. However, after the torque output component 120 moves a certain distance, since the Hall sensor 410 detects that the magnetic component 420 has not moved, it will send a signal to the controller to stop the actuating unit 110 from moving; alternatively, the controller sends a reverse movement signal to the actuating unit 110, and the torque output component 120 moves in the second direction, so that the support body 121 is re-supported by the pivot part 211 to compensate for the detachment angle.

[0113] During the normal flipping and lifting process of the electric clothes hanger, the torque limiting clutch 300 is always in the combined state of the pivoting part 211 and the positioning ring 122. When the arm 210 is blocked during the flipping and descending process, the pivoting part 211 and the positioning ring 122 will rotate relative to each other, which will force the transmission pin 320 to disengage from the transmission groove 330, preventing the power of the actuating unit 110 from being transmitted to the pivoting part 211. When the actuating unit 110 is reversed by a certain angle, the transmission groove 330 is aligned with the transmission pin 320. Under the push of the preload member 310, the transmission pin 320 is reinserted into the transmission groove 330, so that the torque limiting clutch 300 is in the closed state again, and the torque within a certain limit can be transmitted from the actuating unit 110 to the pivoting part 211. When the main unit is installed with deviations, and the center of gravity of the hanger is located on the positive half axis of Y or slightly deviates from the positive half axis of Y and is located in the second quadrant, the torque limiting clutch 300 can also be used to drive the pivot part 211 to rotate in the first direction, so that the center of gravity of the hanger enters the first quadrant, and the hanger can be flipped and lowered by relying on its own gravity torque.

[0114] After adopting the solution of the above embodiment, since the pivot part 211 of the suspension arm 210 is only freely supported by the support body 121, the support body 121 only counteracts the gravity moment and hinders the hanger from rotating from the vertical position to the horizontal position. When the hanger rotates from the vertical position to the horizontal position, if it is obstructed, the support body 121 will be separated from the pivot part 211, so that the resistance of the hanger will not be transmitted to the torque output component 120 and the actuating unit 110, so as to avoid damage to the actuating unit 110 and the torque output component 120 when the hanger is obstructed during the descent process, thereby protecting the safety of the host 100.

[0115] Embodiment 2

[0116] In the prior art, the actuator unit 110 includes a motor 111, which drives the screw to rotate. After the screw rotates, it drives the nut screwed on the screw to move along the axial direction of the screw. The nut then drives the crank to swing in the form of a lever through the transmission member, and the crank drives the hanger to flip and lift. In the above structure, since the screw needs to rotate to drive the nut to move and drive the crank, the host 100 needs to occupy a large space. The motor drives the screw and then drives the crank to rotate, and its motion form is converted from rotational motion to linear motion and then to rotational motion, which greatly reduces the transmission efficiency, and the crank mechanism is limited in load bearing and is also prone to breakage.

[0117] like Figures 6 to 9 The figure shows the second embodiment of the electric clothes hanger of the present invention, which can be implemented on the basis of the first embodiment, and can also be implemented on other electric clothes hangers. The structure of the actuating unit 110 of the present invention is also different from that disclosed in the prior art. The actuating 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 1122, the planetary reducer 1121 and the torque output component 120 of the worm gear mechanism 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 host 100 is reduced, and the planetary reducer 1121 is used, which can not only reduce the rotation speed of the torque output component 120 and realize precise control of the flipping and lifting position of the hanger, but also the planetary reducer 1121 can output a larger torque to realize the lifting of a large load.

[0118] Furthermore, the worm gear mechanism has a built-in self-locking structure, which allows the hanger to stay at any position during the flipping and lifting process, that is, the hanger can be suspended between the first position and the second position, so that the user can freely adjust the height of the hanger according to actual conditions. Specifically, the self-locking structure includes at least one of the following structures:

[0119] The spiral teeth of the worm 1123 and the gear teeth of the worm wheel 1122 form a one-way friction self-locking, so that the worm 1123 can drive the worm wheel 1122, but the worm wheel 1122 cannot drive the worm 1123. The implementation of this scheme uses 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 can be 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 self-lock.

[0120] Alternatively, as in the technical solution disclosed in publication number CN113653782A, the main unit 100 includes a casing 130 for accommodating the actuating unit 110 and the torque output component 120, a friction ring 1124 is mounted on the non-meshing section of the worm 1123, a notch is provided on the friction ring 1124, a limiting portion is provided on the outer periphery of the friction ring 1124, and the casing 130 cooperates with the limiting portion so that the friction ring 1124 holds the worm 1123 tightly to implement one-way self-locking when the worm 1123 is subjected to the load torque of the hanger and has a tendency to reverse.

[0121] like Figure 8 , Fig. 9 As shown, in this embodiment, a two-stage planetary reducer 1121 is used, which can improve the output torque and has a small size, and is suitable for installation in objects such as clothes. Of course, according to the model of the motor 111, the installation position, the load and other conditions, a more advanced planetary reducer 1121 can also be configured. The planetary reducer 1121 includes at least two coaxially connected planetary gear trains 1125 in series, the sun gear 1126 of the head planetary gear train 1125 is coaxially driven with the worm gear 1122 to improve the installation tightness of the planetary gear train 1125 and the worm gear 1122, and the planetary retainer 1127 of the terminal planetary gear train 1125 is coaxially driven with the torque output component 120, or the planetary retainer 1127 of the terminal planetary gear train 1125 serves as the torque output component 120. In this embodiment, the planetary retainer 1127 of the end planetary gear train 1125 is used as the torque output component 120. One end face of the planetary retainer 1127 is provided with a wheel axle connected to the end planetary gear train 1125, and the other end of the planetary retainer 1127 is provided with a support body 121 that cooperates with the pivot part 211.

[0122] Further, the actuating unit 110 further includes a centering shaft 113 which is non-rotatably disposed in the main engine 100. The worm gear 1122, the planetary reducer 1121 and the torque output component 120 are penetrated by the centering shaft 113 to form a coaxial arrangement, and the axis of the centering shaft 113 determines the first axis L1. The concentricity of the worm gear 1122, the planetary reducer 1121 and the torque output component 120 is determined by the centering shaft 113 to ensure that they can rotate around the first axis L1.

[0123] In this embodiment, since the housing 130 of the host 100 is to accommodate the actuating unit 110 and the torque output unit, the length direction of the entire host 100 is generally arranged vertically, or horizontally. As the two largest components in the host 100, the motor 111 and the planetary reducer 1121 are generally arranged along the length direction of the host 100. In order to shorten the length of the host 100, the motor 111 is tilted in this embodiment, that is, the angle α between the axis of the motor 111 and the length direction of the housing 130 is an acute angle, and the projection of the center of gravity of the motor 111 on the plane perpendicular to the axis of the length direction of the housing 130 is located within the projection of the reduction unit 112 on the plane, that is, if the housing 130 is vertically arranged, the length direction of the housing 130 is the vertical direction, and the projection of the center of gravity of the motor 111 in the horizontal plane is located within the projection of the reduction unit 112 on the horizontal plane, so that the increase in the width direction of the housing 130 can be reduced or avoided while shortening the length of the housing 130.

[0124] Furthermore, the housing 130 is vertically arranged, and the center of gravity of the motor 111 is located directly below the first axis L1, that is, 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.

[0125] In this embodiment, a worm gear mechanism and a planetary reducer 1121 are used as the reduction unit 112, and there is no translation element in the power transmission process, so its transmission efficiency is improved, and by optimizing the arrangement of the motor 111 in the housing 130, the length of the main unit 100 is shortened; in the existing scheme, since a screw nut is used to drive the crank arm to swing, the screw needs to be set away from the swing center of the crank arm, and a certain space needs to be occupied in the width direction of the main unit 100, while in the scheme of the present application, the screw nut transmission structure is cancelled, and the planetary reducer 1121 directly drives the suspension arm 210 to swing through the pivot part 211, thereby reducing the width of the main unit 100, so that the width and length of the entire main unit 100 are reduced; the planetary reducer 1121 can not only realize the precise control of the lowering position of the hanger, but also can output a larger torque to improve the carrying capacity.

[0126] Embodiment three:

[0127] Since the actuating unit 110 generates a large torque during operation, in the prior art, the actuating unit 110 and the torque output component 120 are both fixed in the casing 130, and the casing 130 is then fixed on a load-bearing component such as a cabinet body 800 of the wardrobe. That is, the casing 130 needs to bear a large torque during the operation of the host 100. If the casing 130 is not strong enough, it will cause damage to the casing 130, or the strength of the casing 130 needs to be strengthened, which will increase the overall manufacturing cost.

[0128] like Figures 6 to 14 The third embodiment of the electric clothes hanger of the present invention is shown, which can be implemented on the basis of the first or second embodiment, and can also be applied to electric clothes hangers of other structures, so as to solve the problem in the prior art that the load of the electric clothes hanger is restricted by the strength of the housing 130. In this embodiment, the host 100 includes a housing 130 for accommodating the actuating unit 110 and the torque output component 120, the actuating unit 110 includes a reduction box 114 for accommodating the reduction unit 112, and the ring gear of the planetary reducer 1121 is fixed on the reduction box 114 or constitutes a part of the reduction box 114. It is best to use the ring gear as a part of the reduction box 114 to improve the integration of the entire reduction box 114 and reduce the volume of the reduction box 114. The electric clothes hanger also includes a load-bearing member 500 fixed on the electric clothes hanger carrier, that is, the load-bearing member 500 will be directly fixed on the cabinet 800, so that it is easier to install the load-bearing member 500 to the correct position and angle, so as to facilitate the fixation of the host 100 and the load-bearing member 500. A torque transmission component 115 is provided upwardly on the deceleration part, and the torque transmission component 115 passes through the through hole 131 on the housing 130 and is connected to the load-bearing member 500. The load torque of the hanger is guided by the torque transmission component 115 and bypasses the housing 130 to reach the load-bearing member 500. Through the torque transmission component 115 and the connection method of the torque transmission component 115, the housing 130 only plays the role of accommodating the actuating unit 110 and the torque output component 120, and the torque generated by the reduction box 114 during the operation of the electric hanger is directly transmitted to the load-bearing member 500 through the torque transmission component 115, which greatly reduces the strength requirement of the housing 130. On the premise of meeting the accommodation function, the housing 130 can be made as light and thin as possible without considering the influence of torque. The torque transmission component 115 can be fixed in place with the main unit first, and the load-bearing member 500 can be installed on the electric hanger carrier in advance, and finally the torque transmission component 115 is fixedly connected with the load-bearing member 500, so as to more accurately determine the position and angle of the main unit 100 after installation.

[0129] Furthermore, a cavity 132 is provided on the outer side of the casing 130, and the load-bearing member 500 is at least partially accommodated in the cavity 132. Through the setting of the cavity 132, after the main unit 100 is installed on the load-bearing member 500, the casing 130 can be as close to the electric clothes hanger carrier as possible, thereby reducing the gap between the casing 130 and the electric clothes hanger carrier and improving the overall aesthetics.

[0130] like Fig.10 , Fig.13As shown, in order to achieve rapid installation of the main unit 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, and the load-bearing component 500 is provided with a load-bearing groove 510 with an opening at the upper end, and the torque transmission rod 1151 is hung in the load-bearing groove 510 through the opening. The reason for the opening at the upper end is to ensure that the load-bearing component 500 will not fall out of the load-bearing groove 510 when the main unit 100 is not subjected to an upward external force or 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 limit the axial movement of the torque transmission component 115, thereby achieving a fixed connection between the main unit 100 and the load-bearing component 500. The opening of the load-bearing groove 510 located at the upper part of the load-bearing member 500 is communicated with the outside world upward, so that the upper part of the load-bearing member 500 can avoid retaining a closed annular load-bearing groove 510 and reserving too much size, thereby reducing the size of the load-bearing member 500, and then reducing the size of the concave cavity 132 on the casing 120, avoiding the load-bearing member 500 being too large and causing the size of the casing 130 to also increase.

[0131] Furthermore, an abutment portion 511 with a stop flange 1152 is provided in the load-bearing groove 510 for axially stopping and limiting the axial movement of the torque transmission component 115. The abutment portion 511 is arranged in the load-bearing groove 510 to avoid exposure of the abutment portion 511, thereby ensuring the overall beauty, and preventing the abutment portion 511 from obstructing the outer side surface of the load-bearing component 500 from being close to the hanger carrier. The load-bearing component 500 is generally in the shape of a plate or a block, and the outer side surface mentioned here refers to the end surface of the load-bearing component 500 facing away from the main unit.

[0132] Furthermore, an accommodating portion 512 is provided in the load-bearing groove 510 between the abutting portion 511 and the outer side surface of the load-bearing member 500, and the flange 1152 is accommodated in the accommodating portion 512. The flange 1152 is located at the end of the torque transmission rod 1151, so that after the flange 1152 and the abutting portion 511 are stopped, the flange 1152 is completely accommodated in the accommodating portion 512 and will not protrude from the outer side surface of the load-bearing member 500, so that the outer side surface of the load-bearing member 500 can be completely close to the hanger carrier, and the installation of the load-bearing member 500 will also be more stable.

[0133] On the basis of the above embodiment, the torque rod 1151 includes a first fixing portion 1153, which is located at the end of the torque rod 1151 away from the flange 1152, and the reduction box 114 is provided with a second fixing portion 1141 that cooperates with the first fixing portion 1153. One of the first fixing portion 1153 and the second fixing portion 1141 is provided with an external thread, and the other is a threaded hole. Since the first fixing portion 1153 is on the torque rod 1151, the first fixing portion 1153 is generally provided with an external thread, and the second fixing portion 1141 provided on the reduction box 114 is a threaded hole, so as to ensure that the torque rod 1151 can be stably connected to the reduction box 114.

[0134] Furthermore, the torque rod 1151 also includes a first positioning portion 1154 for limiting the length of the torque rod 1151 extending out of the reduction gearbox 114. The first positioning portion 1154 extends radially outward on the torque rod 1151 and abuts against the reduction gearbox 114 around the second fixing portion 1141. The first positioning portion 1154 limits the length of the first fixing portion 1153 entering the second fixing portion 1141, thereby ensuring that the first positioning portion 1154 and the second first positioning portion 1154 can be installed in place.

[0135] like Figure 3 , Figure 5 , Fig.14 As shown, the torque output component 120 has a centering hole 123 penetrated by the first axis L1, and a centering seat 133 is provided on the housing 130. The centering seat 133 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 and worm gear mechanism and the reduction box 114. The housing 130 supports the planetary reducer 1121, the torque output component 120 and the worm wheel 1122 through the first radial bearing 140 and the second radial bearing 150, ensuring that the above three can rotate about 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 the worm wheel 1122 can rotate freely relative to the reduction box 114.

[0136] like Fig.11 , Fig.12 As shown, during installation, the load-bearing member 500 is first fixed on the hanger carrier, that is, the load-bearing member 500 is fixed on the side wall of the cabinet, so that the load-bearing member 500 is close to the side wall of the cabinet, and the opening of the load-bearing groove 510 is on the top, and 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 host 100 is moved downward relative to the load-bearing member 500, and the flange 1152 is stopped by the abutment portion 511, and the fixing of the host 100 is completed. If the host 100 needs to be disassembled, the above steps are reversed to remove the host 100. The structure of this embodiment not only facilitates the positioning of the host 100, but also reduces the requirements for the strength of the housing 130, so that the torque of the actuating unit 110 is directly transmitted to the load-bearing member 500, which is conducive to reducing costs and allows the host 100 to withstand higher torque.

[0137] Embodiment 4

[0138] The existing hanger rod 220 and the suspension arm 210 are basically fixedly connected, which results in relative friction between the hanger rod 220 and the metal hanger 600 suspended on the hanger rod 220 and generates noise when the hanger is turned over or raised.

[0139] See also Figure 2 , Figures 15 to 17 The fourth embodiment of the electric clothes hanger of the present invention is shown, which can be applied on the basis of any of the embodiments 1 to 3, and can also be applied to other clothes hangers that flip and lift, to solve the problem of noise generated by the relative rotation of the hanger rod 220 and the metal hanger 600 when the hanger rod 220 flips and lifts. The hanger includes a suspension arm 210 connected to the host 100 by transmission and a hanger rod 220 attached to the suspension arm 210. The end of the hanger rod 220 is rotatably connected to the suspension arm 210 through a rotating connector to keep the hanger rod 220 and the hanging object relatively still when the suspension arm 210 moves. The hanging object can be a metal hanger 600, or other objects suspended on the hanger rod 220, which will rub against the hanger rod 220 and make noise when the hanger rod 220 rotates.

[0140] The rotating connection member includes a third radial bearing 710 or a component that has the same rotating connection function as the third radial bearing 710, such as a shaft hole coated with a lubricant such as molybdenum disulfide or polytetrafluoroethylene coating to form a rotating connection member. The third radial bearing 710 is a mature technology and does not generate noise during operation. The third radial bearing 710 is taken as an example for description in this embodiment.

[0141] In addition to the pivoting portion 211 that cooperates with the main unit 100 for transmission, the arm 210 also includes a connecting portion 212 that extends radially outward along the pivoting portion 211. The connecting portion 212 can be rod-shaped or strip-shaped. The connecting portion 212 and the pivoting portion can be integrally formed or detachably fixedly connected. The hanger rod 220 is connected to the ends of the connecting portions 212 of the two arms 210. One end of the hanger rod 220 and the corresponding connecting portion 212 of the arm 210 are 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 hanger rod 220 is fixedly connected to the inner hole of the third radial bearing 710, and the outer ring of the third radial bearing 710 is fixed to the arm 210, so that the rod-shaped structure of the hanger rod 220 can be fully utilized, and the third radial bearing 710 can be fixed by opening a mounting hole on the arm 210.

[0142] Furthermore, the electric clothes hanger also includes a first docking member 720, and the first docking member 720 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 hanger rod 220. Since in this embodiment, the 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 hanger rod 220. If the suspension arm 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 suspension arm 210. The first docking piece 720 is provided to play a connecting role. 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 will require the size of the third radial bearing 710 to be larger, resulting in the third radial bearing 710 being unable to be fixed to the suspension arm 210. Therefore, by using the first docking piece 720 as a connecting piece between the hanger rod 220 or the suspension arm 210 and the third radial bearing 710, the first docking piece 720 can be increased in strength to meet the requirements, and the hollow structure of the general hanger rod 220 is fully utilized, so that the second docking 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 changes to the hanger rod 220.

[0143] Furthermore, the third radial bearing 710 of the present embodiment is a ball third radial bearing 710, and a first axial limiting surface 723 is also provided on the first docking piece 720. The first axial limiting surface 723 abuts against the end surface of the inner ring of the third radial bearing 710. The first axial limiting surface 723 can ensure that the first docking piece 720 and the third radial bearing 710 are docked in place, thereby avoiding axial relative movement between the third radial bearing 710 and the first docking piece 720 during use.

[0144] In addition, the electric clothes hanger further includes a second docking member 730, which is detachably fixedly connected to the first docking member 720, and the 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 has been 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 provided on the end face of the first docking shaft 721 of the first docking member 720, and the second docking member 730 uses a bolt to realize the detachable connection between the second docking member 730 and the first docking member 720, and 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.

[0145] If the rotating connector adopts the third radial bearing 710 or a structure similar to the third radial bearing 710, the rotating connector needs to be fixed in the connecting hole 740, and a second positioning portion 741 is provided in the connecting hole 740. The second positioning portion 741 abuts against the end face of the rotating connector that faces away from the opening of the connecting hole 740. The second positioning portion 741 can ensure that the rotating connector is installed in place. If other components need to be arranged in the connecting hole 740, the position of the rotating connector can also be determined by the second positioning portion 741, so that the rotating connector does not affect the installation of other components. The connecting hole 740 is determined according to the structure of the hanging arm 210 and the hanger rod 220, and can be set on the hanging arm 210 or on the hanger rod 220. In this embodiment, the connecting hole 740 is set on the hanging arm 210.

[0146] Furthermore, the second positioning portion 741 only positions and fixes one side of the rotating connector along the axial direction of the connecting hole 740. The rotating connector can achieve fixed connection with the connecting hole 740 by means of friction or the like. However, a safer way is to provide the connecting hole 740 with a first fixing member 750 that is detachably connected to the connecting hole 740, and the first fixing member 750 abuts against the end face of the rotating connector facing the opening of the connecting hole 740, so that the rotating connector is fixed in the connecting hole 740 along the axial direction by means of the first fixing member 750 and the second positioning portion 741. The second positioning portion 741 can be a screw or an object with a similar structure. The second positioning portion 741 is fixedly connected to the connecting hole 740 by means of a thread, and the tail portion thereof forms a positioning surface that abuts against the end face of the rotating connector facing the opening of the connecting hole 740.

[0147] The electric clothes hanger also includes a shielding member 760 for shielding the opening of the connecting hole 740. The shielding member 760 can be directly fixed on the rotating connecting member, for example, the shielding member 760 can be fixed on the outer ring end wall of the third radial bearing 710, or the shielding member 760 can be fixed on the first docking member 720 or the shielding member 760 and the first docking member 720 can be manufactured as one piece. The shielding member 760 can prevent the opening of the connecting hole 740 from being exposed, prevent foreign matter from entering the connecting hole 740, avoid affecting the normal operation of the third radial bearing 710, and improve the overall aesthetics. The shielding member 760 can also abut against the opening of the connecting hole 740 to determine whether the rotating connecting member is installed in place.

[0148] On the basis of the above embodiment, the rotating connector can be directly connected to the end of the arm 210, and the arm 210 is usually a rod-shaped structure. In order to reduce the manufacturing difficulty, a corner piece 770 is provided at the end of the arm 210. The corner piece 770 has a connection hole 740 for connecting with the rotating connector. At the same time, a controller and other equipment can be provided on the corner piece 770 to facilitate the control of the electric clothes hanger. The corner piece 770 can be connected to the arm 210 by plugging, that is, the corner piece 770 is provided with a plug hole 771 plugged with the arm 210, which is conducive to reducing the difficulty of installation.

[0149] The axis of the plug hole 771 on the corner piece 770 is perpendicular to the axis of the connecting hole 740, and the plug hole 771 and the connecting hole 740 are connected, so that when installing some parts in the connecting hole 740, tools can be inserted through the plug hole 771, which is convenient for operation. In this embodiment, the connecting hole 740 will not be directly opened on the hanging arm 210 to reduce the difficulty of manufacturing the hanging arm 210, but the connecting hole 740 is opened on the corner piece 770, which is also convenient for modifying the existing electric clothes hanger. The rotating connecting member in this embodiment includes a third radial bearing 710, and the connecting hole 740 is a two-stage step hole. After the third radial bearing 710 is installed in the connecting hole 740, the inner end face of the outer ring of the third radial bearing 710 abuts against the first step of the connecting hole 740, and the first step forms a second positioning portion 741. A threaded hole is opened on the second step of the connecting hole 740, and the first fixing member 750 is screwed into the threaded hole with a screw. 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 relatively thin diameter, it can be directly inserted into the inner hole of the third radial bearing 710, so that when the hanger is turned over and lifted, the hanger rod 220 and the hanging object remain relatively still. If the hanger rod 220 has a relatively thick diameter, the first docking member 720 is required to realize the connection between the hanger rod 220 and the third radial bearing 710. The first docking shaft 721 of the first docking member 720 is inserted into the inner hole of the third radial bearing 710, and the second docking shaft 722 of the first docking member 720 is inserted into the hanger rod 220. In order to further improve the connection firmness between the first docking member 720 and the third radial bearing 710, a second docking member 730 is further provided in the connection hole 740. The second docking member 730 and the first docking member 720 can also be detachably connected by threaded connection. The first docking member 720 and the second docking 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, and the first docking member 720 is firmly connected to the third radial bearing 710. The above solution solves the problem that the hanger rod 220 rotates relative to the hanging object and generates noise when the hanger is turned over or raised.

[0150] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. Electric clothes hanger, characterized in that: include: The main machine comprises an actuating unit and a torque output component, wherein the torque output component is driven to rotate around a first axis by a deceleration torque provided by the actuating unit, and a support body is arranged on the torque output component deviating from the first axis; the hanger comprises a suspension arm having a pivotal portion and a hanger rod attached to the suspension arm, wherein the pivotal portion is pivoted to the main machine to form a second axis, and the hanger can be flipped and lifted around the second axis, and a portion of the pivotal portion deviating from the second axis is freely supported by the support body, so that the hanger flips and descends in response to a gravity torque when the torque output component outputs an actuating torque in a first direction, and the hanger can be operated to rotate in an opposite second direction and separate from the support body in the reverse direction during the flipping and descending process along the first direction.

2. The electric clothes hanger according to claim 1, characterized in that: An arc-shaped first guide groove is arranged on the pivoting portion around the second axis, and the support body is slidably guided in the first guide groove. When the hanger is turned over and lowered, the support body freely supports one end of the first guide groove.

3. The electric clothes hanger according to claim 2, characterized in that: The pivoting portion is disc-shaped, the first guide groove penetrates from one axial side of the pivoting portion to the other axial side, and the support body extends into the first guide groove in a direction parallel to the first axis.

4. The electric clothes hanger according to claim 1, characterized in that: An arc-shaped second guide groove is arranged on the torque output component around the first axis, a guide pin is axially extended from a portion of the pivot portion deviating from the second axis, the guide pin is slidably guided in the second guide groove, and one end of the second guide groove constitutes the support body.

5. The electric clothes hanger according to claim 1, characterized in that: The hanger flips and rises and falls around a second axis between a first position and a second position lower than the first position, and a rotation direction from the first position to the second position is defined as a first direction, and a rotation direction from the second position to the first position is defined as a second direction. When the hanger is in the first position, it maintains a rotation trend toward the second position along the first direction under the action of gravity torque, and the torque output component outputs an actuating torque in the second direction to the hanger through a support body to drive the hanger to rotate along the second direction toward the first position.

6. The electric clothes hanger according to claim 5, characterized in that: In a two-dimensional orthogonal coordinate system constructed with the second axis as the origin, the center of gravity of the hanger when in the first position is located in the first quadrant, and the center of gravity of the hanger when in the second position is located in one of the first quadrant, the fourth quadrant and the positive semi-axis of X.

7. The electric clothes hanger according to claim 1, characterized in that: The first axis and the second axis coincide.

8. The electric clothes hanger according to claim 7, characterized in that: A positioning ring is arranged around the first axis on the torque output component, a positioning hole is arranged on the pivotal portion, and the positioning ring is matched in the positioning hole for centering and rotation support of the pivotal portion.

9. The electric clothes hanger according to claim 8, characterized in that: A torque limiting clutch is connected between the positioning ring and the pivoting portion, and the torque limiting clutch enables the pivoting portion and the positioning ring to keep synchronous rotation under a predetermined torque.

10. The electric clothes hanger according to claim 9, characterized in that: The torque limiting clutch includes a preload, a transmission pin and a transmission groove. One of the pivot joint and the positioning ring is provided with a preload and a transmission pin that abut against each other, and the other is provided with a transmission groove. The transmission pin is preloaded by the preload and engaged in the transmission groove.

11. The electric clothes hanger according to claim 10, characterized in that: The torque limiting clutch includes at least two transmission grooves spaced apart circumferentially. When the hanger flips down, the transmission pin engages one of the transmission grooves. The hanger can be operated to rotate in a second direction and separate from the support body in the opposite direction, and the transmission pin engages the other transmission groove in the second direction.

12. The electric clothes hanger according to claim 1, characterized in that: The electric clothes hanger also includes a controller and a detection unit. The detection unit detects the flipping and lifting process of the hanger and can trigger a resistance signal when the hanger rotates in a second direction during the flipping and descending process in a first direction. The controller is configured to control the actuating unit to stop or reverse according to the resistance signal.

13. The electric clothes hanger according to claim 12, characterized in that: The detection unit includes a Hall sensor and a magnetic component. The Hall sensor is fixed in the host, and the magnetic component is installed on the pivoting portion. The turning and descending process of the hanger around the second axis can be continuously detected by the Hall sensor.

14. The electric clothes hanger according to any one of claims 1 to 13, characterized in that: The actuating unit comprises a motor and a reduction unit, wherein the reduction unit comprises a worm gear mechanism and a planetary reducer, wherein the worm gear mechanism is drivingly connected to the motor, and the worm gear, the planetary reducer and the torque output component of the worm gear mechanism are coaxially driven.

15. The electric clothes hanger according to claim 14, characterized in that: The worm gear mechanism has a built-in self-locking structure, and the self-locking structure includes at least one of the following structures: The spiral teeth of the worm and the teeth of the worm wheel form a one-way friction self-locking, so that the worm can drive the worm wheel but the worm wheel cannot drive the worm; The non-meshing section of the worm is provided with a friction ring, and the friction ring holds the worm tightly to implement one-way self-locking when the worm is subjected to a clothes hanger load torque and has a reverse tendency; The self-locking structure enables the hanger to hover at any position during the turning and lifting process.

16. The electric clothes hanger according to claim 14, characterized in that: The planetary reducer comprises at least two coaxially connected planetary gear trains, the sun gear of the first planetary gear train is coaxially driven with the worm gear, the planetary retainer of the terminal planetary gear train is coaxially driven with the torque output component, or the planetary retainer of the terminal planetary gear train serves as the torque output component.

17. The electric clothes hanger according to claim 14, characterized in that: The actuating unit further comprises a centering shaft which is non-rotatably arranged in the main machine, the worm gear, the planetary reducer and the torque output component are penetrated by the centering shaft to form a coaxial arrangement, and the axis of the centering shaft determines the first axis.

18. The electric clothes hanger according to claim 14, characterized in that: The main unit includes a casing for accommodating an actuating unit and a torque output component, the actuating unit includes a reduction box for accommodating a reduction unit, the ring gear of the planetary reducer is fixed on the reduction box or constitutes a part of the reduction box, the electric clothes hanger also includes a load-bearing member fixed on the electric clothes hanger carrier, the reduction box is provided with a torque transmission component, the torque transmission component passes through a through hole on the casing and is connected to the load-bearing member, and the hanger load torque is guided by the torque transmission component and bypasses the casing to reach the load-bearing member directly.

19. The electric clothes hanger according to claim 18, characterized in that: A concave cavity is provided on the outer side of the housing, and the load-bearing member is at least partially accommodated in the concave cavity.

20. The electric clothes hanger according to claim 18, characterized in that: The torque transmission component includes a torque transmission rod and a flange extending radially outward on the torque transmission rod. The load-bearing member is provided with a load-bearing groove with an opening at the upper end. The torque transmission rod is hung in the load-bearing groove through the opening. The flange and the load-bearing member around the load-bearing groove form an axial stop to limit the axial movement of the torque transmission component.

21. The electric clothes hanger according to claim 18, characterized in that: The torque output component has a centering hole penetrated by the first axis, the housing is provided with a centering seat, the centering seat is axially embedded in the centering hole with a first radial bearing arranged therebetween, and a second radial bearing is arranged between the worm wheel of the worm gear mechanism and the reduction box.

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