Electric clothes hanger

Abstract

The utility model 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 utility model relates to the field of lifting clothes hanger, concretely relates to electric clothes hanger. BACKGROUND

[0002] With the continuous development of modern life and the improvement of people's living quality, the requirements for household storage and clothes hanging are also higher and higher, and the traditional clothes hanging rod has been unable to meet the needs of people for storage and hanging, therefore, the electric clothes hanger emerges as the times require as a new type of household product.

[0003] The electric clothes hanger is provided with the clothes hanger overturning power by the device driven by electricity (such as the motor drive with the deceleration output function), but the obstacles in the use environment of the electric clothes hanger cannot be predicted in advance, and the overturning of the clothes hanger may cause the risk that people or objects are accidentally squeezed, the known protection means such as the increase of the resistance sensor, the resistance sensor can be the piezoelectric sensor, the photoelectric sensor and the like, they can detect whether the obstacle enters the space below the clothes hanger in the clothes hanger overturning process or whether the clothes hanger has been contacted, the sensor detection signal is transmitted to the control unit, and the control unit controls the motor to execute the stop or reverse operation. The disadvantages of the above-mentioned protection means are also very obvious, because the sensor only covers a limited area, and is usually arranged at the position with the potential squeezing danger in the overturning operation process, but for the electric clothes hanger, it is almost impossible to equip such sensors in all areas at a high cost, if the piezoelectric sensor is used, the triggering mechanism causes the system response to be after the clothes hanger contacts the obstacle, which means that people or objects may still be stuck and continuously squeezed, in addition, the above-mentioned protection means all face the defect that the electronic components are unstable, and once the sensor fails, the resistance protection function is invalid. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing electric clothes hanger, solves the problem of poor reliability of resistance detection of existing electric clothes hanger, and realizes the resistance protection function by using a more simple and stable mechanical structure.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical schemes:

[0006] The electric clothes hanger comprises:

[0007] The host computer comprises an actuating unit and a torque output component, the torque output component is driven to rotate around the first axis by the deceleration torque provided by the actuating unit, and the support body is arranged on the torque output component and deviates from the first axis;

[0008] A clothes hanger comprises a hanger arm having a pivot portion pivotally connected to a main body to form a second axis, and a hanger rod attached to the hanger arm, the hanger being able to be flipped up and down about the second axis, a portion of the pivot portion deviated from the second axis being freely supported by the support body, so that the hanger is flipped down in response to a gravity torque when a torque output component outputs an actuating torque in a first direction, and the hanger is operatively rotated in a second direction opposite to the first direction to be reversely separated from the support body during the flipping down in the first direction.

[0009] In the above electric clothes hanger, an arc-shaped first guide groove is arranged on the pivot portion around the second axis, and the support body is slidably guided in the first guide groove, the support body freely supporting one end of the first guide groove during the flipping down of the hanger.

[0010] In the above electric clothes hanger, the pivot portion is disc-shaped, the first guide groove penetrates through the pivot portion from one axial side 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 electric clothes hanger, an arc-shaped second guide groove is arranged on the torque output component around the first axis, a guide pin axially extending from the portion of the pivot portion deviated from the second axis, the guide pin being slidably guided in the second guide groove, and one end of the second guide groove constituting the support body.

[0012] In the above electric clothes hanger, the hanger is flipped up and down about the second axis between a first position and a second position lower than the first position, a rotation direction from the first position to the second position being defined as a first direction, and a rotation direction from the second position to the first position being defined as a second direction, the hanger being kept in a rotation trend to the second position in the first direction under the action of a gravity torque when the hanger is in the first position, and the torque output component outputting an actuating torque in the second direction to the hanger through the support body to drive the hanger to rotate to the first position in the second direction.

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

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

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

[0016] In the above electric clothes hanger, a torque limiting clutch is connected between the positioning ring and the pivot part, which keeps the pivot part and the positioning ring synchronous rotation at a predetermined torque.

[0017] In the above electric clothes hanger, the torque limiting clutch comprises a pre-tightening member, a transmission pin and a transmission groove, one of the pivot part and the positioning ring is provided with the pre-tightening member and the transmission pin, and the other is provided with the transmission groove, the transmission pin is pre-tightened by the pre-tightening member and engaged in the transmission groove.

[0018] In the above electric clothes hanger, the torque limiting clutch comprises at least two circumferentially spaced transmission grooves, when the clothes hanger is turned downward, the transmission pin engages one of the transmission grooves, the clothes hanger can be operated to rotate in the second direction to separate from the support body in the opposite direction, and the transmission pin engages another transmission groove in the second direction.

[0019] In the above electric clothes hanger, the electric clothes hanger further comprises a controller and a detection unit, the detection unit detects the turning and lowering process of the clothes hanger, and can trigger a resistance signal when the clothes hanger is turned in the second direction during the turning and lowering process in the first direction, and the controller is configured to control the actuating unit to stop or reverse according to the resistance signal.

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

[0021] In the above electric clothes hanger, the actuating unit comprises a motor and a speed reduction unit, the speed reduction unit comprises a worm and gear mechanism and a planetary reducer, the worm and gear mechanism is drivingly connected to the motor, and the worm gear of the worm and gear mechanism, the planetary reducer and the torque output component are coaxially driven.

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

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

[0024] The non-meshing section of the worm is sleeved with a friction ring, which tightly holds the worm when the worm is reversed by the load torque of the clothes hanger and implements one-way self-locking;

[0025] The self-locking structure makes the clothes hanger hover at any position during the turning and lowering process.

[0026] In the above electric clothes hanger, the planetary reducer comprises at least two coaxial planetary gear trains connected in series, the sun gear of the first planetary gear train is coaxially connected with the worm wheel, the planet carrier of the last planetary gear train is coaxially connected with the torque output component, or the planet carrier of the last planetary gear train serves as the torque output component.

[0027] In the above electric clothes hanger, the actuating unit further comprises a centering shaft arranged non-rotatably in the main machine, the worm wheel, the planetary reducer and the torque output component are coaxially arranged through the centering shaft, and the axial line of the centering shaft determines the first axis.

[0028] In the above electric clothes hanger, the main machine comprises a machine shell accommodating the actuating unit and the torque output component, the actuating unit comprises a reduction box accommodating the 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 further comprises a load bearing fixed on the electric clothes hanger carrier, a torque transmission component is arranged on the reduction box, the torque transmission component is connected to the load bearing through a through hole on the machine shell, and the clothes hanger load torque is guided to bypass the machine shell and directly reach the load bearing through the torque transmission component.

[0029] In the above electric clothes hanger, the outer side of the machine shell is provided with a recess, and the load bearing is at least partially accommodated in the recess.

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

[0031] In the above electric clothes hanger, the torque output component has a centering hole penetrated by the first axis, the machine shell 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 centering seat and the centering hole, and a second radial bearing is arranged between the worm and gear mechanism worm wheel and the reduction box.

[0032] Compared with the prior art, the electric clothes hanger has the following advantages:

[0033] In the utility model, the part of the hanger arm's pivot joint deviating from the second axis is supported freely by the support body, so that the hanger turns and falls in response to the gravity torque when the torque output component outputs the actuating torque in the first direction, the hanger is supported by the support body of the torque output component, and the speed and position of the hanger's turning and falling are controlled, the hanger can be rotated in the second direction opposite to the first direction in the process of turning and falling in the first direction, so as to be separated reversely from the support body. This means that if the hanger encounters an obstacle in the falling process, the pivot joint can be separated reversely from the support body, and the operation of the actuating unit is not hindered at least in the short term, the actuating unit is protected from damage, because the hanger is not forced to fall by the actuating unit, the hanger can be kept in the current position without continuously pressing the obstacle, the obstacle only bears the gravity of the hanger without the actuating torque of the actuating unit, so that the person or object is at least ensured from secondary injury of the actuating unit, i.e. the so-called anti-pinch function.

[0034] The protection mechanism of the free support realizes the obstacle-encountering anti-pinch function in a more simple and stable mechanical structure, reduces the dependence of the electric hanger on the sensor, avoids the need for a complex electronic sensor, reduces the cost and maintenance difficulty, solves various problems caused by the detection of the sensor only from the root, and more advantageously, in the obstacle-encountering situation, the hanger can be rotated in the second direction opposite to the first direction, so that the user can remove the obstacle more easily, thereby eliminating the obstacle-encountering situation and improving the convenience of use.

[0035] Further, the arc-shaped first guide groove is arranged around the second axis on the pivot joint, and the support body is slidably guided in the first guide groove, and the support body freely supports one end of the first guide groove in the process of turning and falling of the hanger. 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 that the problem of disengagement of the support body from the pivot joint in the use process is avoided.

[0036] Further, the pivot part is disc-shaped, the first guide slot penetrates from one axial side of the pivot part to the other axial side, and the support body extends into the first guide slot in a direction parallel to the first axis. The pivot part uses a flat disc-shaped structure, which can reduce its axial thickness and thus reduce the demand for axial space; the first guide slot penetrates the pivot part axially, which can make the pivot part and the torque output component as close as possible on the premise of realizing free support, reducing the demand for axial space after the two are matched, which is advantageous for the internal layout of the host computer, so that the host computer can be made lighter and thinner, or the host computer can have more space inside for other components or functions; because the support body freely supports one end of the first guide slot, whether the clothes hanger is turned down in response to the gravitational torque or is driven to turn up by the actuating torque, the pivot part will bear shear force, and the end of the first guide slot supported by the support body can disperse this shear stress to other areas of the pivot part, avoiding stress concentration. The reason for using a flat disc-shaped pivot part is that it can reduce the demand for axial space and reduce material usage without sacrificing strength and durability.

[0037] Further, the torque output component is provided with an arc-shaped second guide slot around the first axis, the pivot part is provided with a guide pin axially extending from a position deviating from the second axis, the guide pin is slidably guided in the second guide slot, and one end of the second guide slot constitutes the support body. Another support body structure, the second guide slot on the torque output component freely supports the guide pin on the pivot part, which can also achieve the purpose of allowing the guide pin to separate reversely from the support body when the clothes hanger is turned down.

[0038] Further, the clothes hanger is flipped and lifted around the second axis between the 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, the clothes hanger is kept in the rotation trend to the second position by the gravity torque when the clothes hanger is in the first position, and the torque output component outputs the actuating torque in the second direction to the clothes hanger through the support body to drive the clothes hanger to rotate to the first position in the second direction. The direction of the clothes hanger is limited to flip and lift, so that the gravity torque can always keep the rotation trend to the second position, and the support body can continuously keep the pivot in the lifting state during the clothes hanger flips and lifts, thereby controlling the speed of the clothes hanger flips and lifts, and the limitation of the direction of the clothes hanger flips and lifts can also make the electric clothes hanger better adapt to the scene of using the electric clothes hanger carrier with one side open, such as in a wardrobe. Further, in a two-dimensional orthogonal coordinate system with the second axis as the origin, the center of gravity of the clothes hanger in the first position is located in the first quadrant, and the center of gravity of the clothes hanger in the second position is located in one of the first quadrant, the fourth quadrant, and the X positive half-axis. The gravity of the clothes hanger can always generate a gravity torque around the second axis, so that the clothes hanger always has a trend to move to the second position, and when the torque output component outputs the actuating torque in the second direction to the clothes hanger through the support body is less than the gravity torque of the clothes hanger, the clothes hanger can immediately realize the flip and drop action without giving the clothes hanger an initial torque.

[0039] Further, 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 pivot of the clothes hanger are the same axis, and the distance from the part of the pivot freely supported by the support body to the axis remains basically unchanged during the clothes hanger flips, no matter how the clothes hanger flips and lifts, the length of the actuating torque arm is basically constant, the clothes hanger thereby obtains stable actuating torque, the stability of the clothes hanger in the lifting process is guaranteed, and the instability factor caused by the change of the arm is reduced; the coincidence of the axes can simplify the design of the electric clothes hanger, make the mechanical connection between the torque output component and the clothes hanger more direct and efficient, and when the user operates the clothes hanger, the same force output by the torque output component will cause the same movement of the clothes hanger due to the constant arm, thereby improving the consistency and predictability of the operation.

[0040] Further, a positioning ring is arranged on the torque output component around the first axis, and a positioning hole is arranged on the pivot for centering and rotating support of the pivot. By using the cooperation of the positioning ring and the positioning hole, on the one hand, the coaxiality of the torque output component and the pivot is ensured, and on the other hand, the contact area between the pivot and the torque output component can be increased, thereby improving the torque bearing capacity of the pivot and the torque output component.

[0041] Further, a torque limiting clutch is connected between the positioning ring and the pivot part, and the torque limiting clutch keeps the pivot part and the positioning ring synchronous rotation at a predetermined torque. According to the protection mechanism of free support, the clothes hanger is turned down in response to the gravity torque when the torque output component outputs the actuating torque in the first direction, and the gravity torque is generated when the clothes hanger is in the high position, and the clothes hanger is deflected in the first direction to exceed the zero position to generate the gravity torque, although the main machine installation error occurs in actual use, the clothes hanger is deflected in the second direction to exceed the zero position, and the clothes hanger cannot be turned down in the first direction in response to the gravity torque when the torque output component outputs the actuating torque in the first direction, and therefore, the torque limiting clutch is designed, and the clothes hanger is deflected in the first direction to exceed the zero position to generate the gravity torque by the torque limiting clutch when the above-mentioned situation occurs, but the torque limiting clutch itself does not need to participate in the normal turning of the clothes hanger.

[0042] Further, the torque limiting clutch comprises a pre-tightening piece, a transmission pin and a transmission groove, one of the pivot part and the positioning ring is provided with the pre-tightening piece and the transmission pin, and the other is provided with the transmission groove, and the transmission pin is pre-tightened by the pre-tightening piece and is engaged in the transmission groove. The transmission pin is given a certain pre-tightening force by the pre-tightening piece, 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 pre-tightening force of the pre-tightening piece and be taken out of the transmission groove, so as to ensure the safety of the actuating unit.

[0043] Further, the torque limiting clutch comprises at least two circumferentially spaced transmission grooves, when the clothes hanger is turned down, the transmission pin engages one of the transmission grooves, the clothes hanger can be operated to rotate in the second direction to be reversely separated from the support body, and the transmission pin engages another transmission groove in the second direction. After the main machine is accidentally powered off, the clothes hanger can be manually turned up to the position where the transmission pin cooperates with the other transmission groove, so as to fix the clothes hanger in the position that can be stored, and avoid the problem that the down-turned clothes hanger cannot be stored and positioned due to accidental power failure.

[0044] Further, the electric clothes hanger further comprises a controller and a detection unit, the detection unit detects the turning and lifting process of the clothes hanger, and can trigger a resistance signal when the clothes hanger rotates in the second direction during the turning and lifting process in the first direction, and the controller is arranged to control the actuating unit to stop or reverse according to the resistance signal. The detection unit can detect whether the clothes hanger meets resistance during the turning and lifting process, and the controller can control the actuating unit in time.

[0045] Further, the detection unit comprises a Hall sensor fixed in the main machine and a magnetic component installed on the pivot, and the turning and lowering process of the clothes hanger around the second axis can be continuously detected by the Hall sensor. The Hall sensor and the magnetic component can accurately detect whether the relative position changes without contact, generate a more accurate detection signal, and the turning and lowering process of the clothes hanger around the second axis can be continuously detected by the Hall sensor, that is, the Hall sensor continuously detects the turning and lowering process of the clothes hanger by the magnetic field change during the process, and once the clothes hanger is blocked, the signal can be sent in the first time to control the actuator unit to act.

[0046] Further, the actuator unit comprises a motor and a speed reduction unit, the speed reduction unit comprises a worm and gear mechanism and a planetary reducer, the worm and gear mechanism is drivingly connected to the motor, and the worm gear of the worm and gear mechanism, the planetary reducer and the torque output component are coaxially driven. The planetary reducer can reduce the output speed, so as to more accurately control the position of the turning and lifting of the clothes hanger, and the planetary reducer can output larger torque to improve the carrying capacity of the clothes hanger, and the worm and gear mechanism will not produce axial movement along the worm during movement, which is beneficial to reduce the volume of the main machine.

[0047] Further, the worm and gear mechanism is internally provided with a self-locking structure, and the self-locking structure at least comprises one of the following structures: the helical teeth of the worm and the gear teeth of the worm gear form a one-way friction self-locking, so that the worm can drive the worm gear and the worm gear cannot drive the worm; the non-meshing section of the worm is sleeved with a friction ring, and the friction ring tightly holds the worm to implement one-way self-locking when the worm is reversed by the load torque of the clothes hanger; the self-locking structure enables the clothes hanger to hover at any position during the turning and lifting process. The self-locking structure enables the clothes hanger to hover at any position during the turning and lifting process, realizes stepless control of the position of the clothes hanger during the turning and lifting process, and the user can stop the clothes hanger at the best position according to the need to take and place clothes.

[0048] Further, the planetary reducer comprises at least two coaxially connected planetary gear trains, the sun gear of the first-end planetary gear train is coaxially driven with the worm gear, the planetary retainer of the last-end planetary gear train is coaxially driven with the torque output component, or the planetary retainer of the last-end planetary gear train serves as the torque output component. The two-stage planetary reducer can achieve a higher transmission ratio, and the connection of the first-end planetary gear train and the last-end planetary gear train makes the internal structure of the whole main machine more compact.

[0049] Further, the actuating unit further comprises a centering shaft arranged non-rotatably in the main machine, the worm gear, the planetary reducer and the torque output component are coaxially arranged by the centering shaft, and the axis of the centering shaft determines the first axis. The centering shaft provides a reference for the coaxial arrangement of the worm gear, the planetary reducer and the torque output component, so that they can stably rotate around the first axis, thereby ensuring the stability of power transmission during operation of the actuating unit and the torque output component.

[0050] Further, the main machine comprises a machine shell for accommodating the actuating unit and the torque output component, the actuating unit comprises a reduction box for accommodating the reduction unit, the ring gear of the planetary reducer is fixed to the reduction box or forms a part of the reduction box, the electric clothes rack further comprises a load bearing member fixed to the electric clothes rack carrier, and the reduction box is provided with a torque transmission component, the torque transmission component penetrates through a through hole on the machine shell and is connected to the load bearing member, and the load torque of the clothes rack is guided by the torque transmission component to bypass the machine shell and reach the load bearing member. By arranging the torque transmission component penetrating through the machine shell and connected to the load bearing member, the machine shell no longer bears the load torque of the clothes rack, and the machine shell will only serve to accommodate the actuating unit and the torque output component, so that the load bearing capacity of the electric clothes rack is no longer restricted by the strength of the machine shell, and the load bearing capacity of the entire electric clothes rack is improved.

[0051] Further, the outer side of the machine shell is provided with a recess, and the load bearing member is at least partially accommodated in the recess. By accommodating the load bearing member in the recess, the machine shell can be closer to the cabinet during installation, the exposed part of the load bearing member is reduced, the overall appearance is improved, the space occupied by the main machine on the electric clothes rack carrier is reduced, and the space utilization rate of the electric clothes rack carrier is improved.

[0052] Further, the torque transmission component comprises 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 open upper end, the torque transmission rod is hung in the load bearing groove through the opening, and the flange forms an axial stop with the load bearing member around the load bearing groove to limit the axial movement of the torque transmission component. By the stop of the flange on the torque transmission rod and the load bearing member, the axial movement of the torque transmission component is limited, that is, the fixed connection between the main machine and the load bearing member is realized.

[0053] Further, the torque output component has a centering hole penetrated by the first axis, the machine shell 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 centering seat and the centering hole, and a second radial bearing is arranged between the worm gear of the worm and worm gear mechanism and the reduction box. The torque output component and the worm gear are both located on the outer side of 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 machine shell, and the reduction box is generally fixedly connected with the machine shell, in order to ensure that the worm gear can stably rotate around the first axis, a second radial bearing is arranged between the worm gear and the reduction box. BRIEF DESCRIPTION OF DRAWINGS

[0054] Figure 1 It is the structure schematic diagram of the electric clothes hanger of the utility model under use state;

[0055] Figure 2 It is the structure schematic diagram of the electric clothes hanger of the utility model;

[0056] Figure 3 It is the explosion of the host computer in the utility model Figure 1 ;

[0057] Figure 4 It is the explosion of the host computer and the boom in the utility model Figure 1 ;

[0058] Figure 5 It is the front view when the host computer and the boom connection in the utility model are in the first position;

[0059] Figure 6 It is the rear view when the host computer and the boom connection in the utility model are in the first position;

[0060] Figure 7 It is the explosion of the host computer in the utility model Figure 2 ;

[0061] Figure 8 It is the explosion of the host computer and the boom in the utility model Figure 2 ;

[0062] Figure 9 It is the explosion of the host computer in the utility model

[0063] Figure 10 It is the explosion of the host computer and the load-bearing part in the utility model

[0064] Figure 11 It is the structure schematic diagram when the transmission square part is prepared to be inserted into the load-bearing part in the utility model;

[0065] Figure 12 It is the structure schematic diagram after the transmission square part is inserted into the load-bearing part in the utility model;

[0066] Figure 13 It is the perspective view of the load-bearing part in the utility model

[0067] Figure 14 It is the sectional view of the host computer in the utility model

[0068] Figure 15 It is the sectional view of the boom and the clothes hanger rod connection in the utility model

[0069] Figure 16 It is the explosion of the corner part and the rotary connecting part in the utility model Figure 1 ;

[0070] Figure 17 For the explosion of the corner piece and the rotary connecting piece in the utility model Figure 2 ;

[0071] Figure 18 For the front view when the main machine and the boom connecting part are in the second position in the utility model

[0072] Figure 19 For the structure schematic view when the boom overturning and descending meet resistance in the utility model

[0073] Figure 20 For the structure schematic view after the boom overturning and descending is manually pushed back to the first position after power failure in the utility model

[0074] Reference signs are:

[0075] Main machine 100, actuating unit 110, motor 111, speed reduction unit 112, planetary reducer 1121, worm wheel 1122, worm 1123, friction ring 1124, planetary gear train 1125, sun gear 1126, planetary cage 1127, centering shaft 113, speed reduction box 114, second fixing part 1141, torque transmission component 115, torque transmission rod 1151, flange 1152, first fixing part 1153, positioning part 1154, torque output component 120, support body 121, positioning ring 122, centering hole 123, machine shell 130, through hole 131, concave cavity 132, centering seat 133, first radial bearing 140, second radial bearing 150

[0076] Boom 210, pivot joint part 211, first guide slot 2111, positioning hole 2112, fixing slot 2113, connecting part 212, clothes hanger rod 220

[0077] Torque limiting clutch 300, pre-tightening piece 310, transmission pin 320, transmission slot 330

[0078] Hall sensor 410, magnetic component 420

[0079] Bearing piece 500, bearing slot 510, abutting part 511, containing part 512

[0080] Metal clothes hanger 600

[0081] Third radial bearing 710, first butt joint piece 720, first butt joint shaft 721, second butt joint shaft 722, first axial limiting surface 723, second butt joint piece 730, second axial limiting surface 731, connecting hole 740, second positioning part 741, first fixing piece 750, shielding piece 760, corner piece 770, insertion hole 771

[0082] Cabinet body 800 DETAILED DESCRIPTION

[0083] An electric clothes hanger, comprising:

[0084] A host 100 comprising an actuating unit 110 and a torque output component 120 driven to rotate about a first axis L1 by a deceleration torque provided by the actuating unit 110, a support 121 being provided on the torque output component 120 offset from the first axis L1;

[0085] A clothes hanger comprising a hanger arm 210 having a pivot portion 211 pivoted to a host 100 to form a second axis L2, and a hanger rod 220 attached to the hanger arm 210, the clothes hanger being rotatable about the second axis L2 to be raised and lowered, a portion of the pivot portion 211 offset from the second axis L2 being freely supported by the support 121, so that the clothes hanger is rotated and lowered in response to a gravitational torque when the torque output component 120 outputs an actuating torque in a first direction, and the clothes hanger is operatively rotated in an opposite second direction to be disengaged from the support 121 during the rotation and lowering in the first direction.

[0086] The hanger is freely supported by the support body 121 on the pivot part 211 of the hanger arm 210, and the hanger is turned and lowered in the first direction 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 turned in the second direction opposite to the first direction during the turning and lowering in the first direction, and is reversely separated from the support body 121, thereby solving the problem of poor detection reliability of the existing electric hanger. The part of the pivot part 211 of the hanger arm 210 deviated from the second axis L2 is freely supported by the support body 121, and the hanger is turned and lowered in the first direction in response to the gravity torque when the torque output component 120 outputs the actuating torque in the first direction, and the support body 121 supports the hanger, controls the speed and position of the turning and lowering of the hanger, and the hanger can be operatively turned in the second direction opposite to the first direction during the turning and lowering in the first direction, thereby reversely separating from the support body 121. This means that if the hanger encounters an obstacle during the lowering, the pivot part 211 can reversely separate from the support body 121, and at least in the short term, the operation of the actuating unit 110 is not hindered, and the actuating unit 110 is protected from damage, because the hanger is not forcibly lowered by the actuating unit 110, and once an obstacle is encountered, the hanger can be kept at the current position without continuously pressing the obstacle, and the obstacle only bears the gravity of the hanger without being subjected to the actuating torque of the actuating unit 110, thereby at least ensuring that people or objects are not injured by the actuating unit 110, i.e., the so-called anti-pinch function. The protection mechanism of the free support realizes the anti-pinch function in a more simple and stable mechanical structure, reduces the dependence of the electric hanger on sensors, avoids the need for complex electronic sensors, reduces the cost and maintenance difficulty, and fundamentally solves various problems caused by the detection of obstacles only by sensors. More advantageously, in the case of encountering an obstacle, the hanger can be turned in the second direction opposite to the first direction, which makes it easier for the user to remove the obstacle and thus eliminate the obstacle, thereby improving the convenience of use.

[0087] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0088] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0089] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0090] In the utility model, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection or communication with each other; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0091] Embodiment one:

[0092] Reference Figures 1 to 8 For the embodiment one of the utility model electric clothes rack, the electric clothes rack includes host 100 and clothes rack installed on host 100, and in the embodiment, host 100 has two and is fixedly installed on the opposite two side walls of wardrobe, and the clothes rack includes hanging arm 210 and clothes rack rod 220, each host 100 is connected with one hanging arm 210, and the clothes rack rod 220 is connected between two hanging arms 210, and the synchronous rotation lifting of two hanging arms 210 is controlled by host 100, so as to drive the rotation lifting of clothes rack rod 220. In this way, clothes are hung on clothes rack rod 220, when clothes need to be taken, host 100 controls the downward rotation of hanging arm 210 to specified position, and the user can conveniently take clothes on clothes rack rod 220, when use is finished, host 100 drives the upward rotation of hanging arm 210, and clothes rack rod 220 drives clothes to return to the storage position in wardrobe.

[0093] The host 100 comprises an actuating unit 110 mainly used for providing actuating force and a torque output component 120 driven to rotate around a first axis L1 by the deceleration torque provided by the actuating unit 110, and a support body 121 is arranged on the torque output component 120 deviated from the first axis L1, that is, the torque output component 120 generates torque by being driven to rotate by the actuating unit 110 and outputs the torque through the support body 121, while the actuating unit 110 needs to provide deceleration torque, so as to improve the control accuracy, avoid the overturning lifting speed of the clothes hanger being too fast, and accurately control the position of the clothes hanger stopping. The overturning lifting can be divided into two processes of overturning descending and overturning ascending, the overturning descending refers to the clothes hanger moving to the outside of the cabinet body and descending in height at the same time, and the trajectory is an arc; the overturning ascending is opposite to the overturning descending trajectory, the clothes hanger moves upward and ascends in height at the same time, and the trajectory is also an arc.

[0094] The hanger arm 210 is provided with a pivoting portion 211 pivoted to the host 100 to form a second axis L2, the clothes hanger can overturn and lift around the second axis L2, and the part of the pivoting portion 211 deviated from the second axis L2 is freely supported by the support body 121. The free support is relative to the existing electric clothes hanger, the power part of the existing electric clothes hanger is matched with the hanger arm 210 through a similar shaft hole, if the clothes hanger rod 220 of the existing electric clothes hanger is blocked during the process of rotating and descending, the actuating unit 110 in the host 100 will also stop running, the actuating unit 110 is damaged, and the actuating unit 110 will continuously output actuating torque to the clothes hanger after the clothes hanger is blocked during the process of overturning and descending, so as to cause extrusion to the third party and cause mechanical damage. In the embodiment, the part of the pivoting portion 211 deviated from the second axis L2 is freely supported by the support body 121, that is, the support body 121 lifts the pivoting portion 211 upward, and does not limit the pivoting portion 211 in the upward rotating direction of the hanger arm 210. During the process of overturning and descending of the clothes hanger, once the clothes hanger is blocked, the pivoting portion 211 will be separated from the support body 121, that is, the support body 121 will not continue to output actuating torque to the pivoting portion 211, so as to protect the actuating unit 110 from being damaged and avoid mechanical damage to the third party, and the function of preventing pinching is achieved.

[0095] The above structure makes the clothes hanger overturn and descend in response to the gravity torque when the torque output component 120 outputs the actuating torque in the first direction, and the clothes hanger is operable to rotate in the opposite second direction to reversely separate from the support body 121 during the process of overturning and descending in the first direction. As Figure 5As shown, the first direction is the direction in which the hanging arm 210 rotates downward, i.e., clockwise, and the second direction is the direction in which the hanging arm 210 rotates upward, i.e., counterclockwise. When the hanger rod 220 needs to rotate downward, the actuating unit 110 moves, generating an actuating force on the pivoting portion 211 via the torque output component 120. At this time, the actuating torque applied to the hanger is less than the combined gravitational torque generated by the hanger and the clothes hanging thereon. Therefore, under the influence of the gravitational torque, the hanger will tilt and descend in the first direction. The speed at which the hanger tilts and descends is determined by the difference between the gravitational torque and the actuating torque. The greater the difference, the greater the speed at which the hanger tilts and descends. Therefore, the speed at which the hanger tilts and descends can be controlled by the actuating unit 110. During the process of the hanger flipping and descending, since the support body 121 only supports the pivot portion 211, the hanger is obstructed at this time, and the part of the pivot portion 211 that was originally supported by the support body 121 will separate 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 actuator 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 pivotal portion 211 around the second axis L2, and the support body 121 is slidably guided in the first guide groove 2111. During the process of the clothes hanger flipping and descending, 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 pivotal portion 211 during use. Moreover, the first guide groove 2111 is an arc-shaped guide groove provided around the second axis L2, and the pivotal portion 211 rotates along the second direction and also flips around the second axis L2. Therefore, when the clothes hanger is flipped and descended and subjected to external force, the support body 121 will slide in the first guide groove 2111, thereby enabling the support body 121 to be separated from the pivotal portion 211 in the reverse direction. Moreover, one end of the first guide groove 2111 serves as a portion freely supported by the support body 121, as shown in FIG. Figure 5As shown, the first direction is clockwise, the right support body 121 is freely supported by the top of the right first guide slot 2111, and the left support body 121 is supported by the bottom of the left first guide slot 2111. When the clothes hanger is flipped and lowered, the support body 121 generates an actuating torque in the counterclockwise direction. When the clothes hanger is blocked from descending, the support body 121 will continue to rotate in the first direction along the first guide slot 2111, thereby achieving the separation of the support body 121 and the pivot part 211. Since the support body 121 is generally made into a component protruding towards the pivot part, such as a columnar or block-shaped component, if a protruding component similar to the support body 121 is also made on the pivot part 211 and is freely supported by the support body 121, the force of the support body 121 on the pivot part 211 will be entirely applied to the protruding component on the pivot part 211, which will cause a huge stress at the root of the component, reducing the ability of the pivot part 211 to withstand the actuating torque. By opening the first guide slot 2111 on the pivot part 211 and cooperating with the support body 121, the above stress concentration situation can be avoided, thereby increasing the ability of the pivot part 211 to withstand the actuating torque.

[0097] As shown in Figure 4 , Figure 5 Further, the specific pivot part 211 is disc-shaped, which can reduce its axial thickness and thus reduce the demand for axial space. The center of the pivot part 211 is pivoted to the main machine 100, and the first guide slot 2111 can be a blind slot opened towards the support body 121 or a through slot. In this embodiment, the first guide slot 2111 is a through slot, which penetrates from one axial side of the pivot part 211 to the other axial side. The support body 121 extends into the first guide slot 2111 in a direction parallel to the first axis L1, which can make the pivot part 211 and the torque output component 120 as close as possible while achieving free support, thereby reducing the demand for axial space after the cooperation of the two, which is advantageous for the internal layout of the main machine 100. Therefore, the main machine 100 can be made lighter and thinner, or the main machine 100 can allow more space inside for other components or functions.

[0098] And the first guide slot 2111 of the shaft of the pivot joint 211, that is, the support body 121 is to protrude from the torque output component 120, so that the contact area of the support body 121 and the first guide slot 2111 can be increased, the strength requirement of the material of the support body 121 and the pivot joint 211 can be reduced, and the support body 121 can be effectively prevented from sliding out of the first guide slot 2111. At this time, the support body 121 can also be made into a columnar structure, such as a cylindrical shape. Correspondingly, the end of the first guide slot 2111 supported by the support body 121 is also arc-shaped. Not only can the first guide slot 2111 have a larger contact area during the rotation of the clothes hanger, but also the cylindrical support body 121 is not easy to jam when the clothes hanger is blocked, so that the torque output component 120 can continue to rotate relative to the pivot joint 211 smoothly.

[0099] In addition to the above connection structure of the pivot joint 211 and the support body 121, an arc-shaped second guide slot can be arranged on the torque output component 120 around the first axis L1, and a guide pin axially extended from a position deviated from the second axis L2 on the pivot joint 211. The guide pin is slidably guided in the second guide slot, and one end of the second guide slot constitutes the support body 121. The second guide slot and the guide pin are used in this scheme, and the structure is similar to that in the foregoing embodiment. However, the guide slot is arranged on the torque output component 120. The effect of this scheme is basically the same as that of the scheme in the foregoing embodiment.

[0100] As shown in Figure 4 , Figure 5 , in this embodiment, the clothes hanger rotates between the first position and the second position lower than the first position around the second axis L2, that is, the horizontal height of the clothes hanger in the first position is higher than that in the second position. The main machine 100 drives the clothes hanger to rotate between the first position and the second position to realize the rotation and lifting. The first position is generally the storage position of the electric clothes hanger, that is, in this position, the clothes hanger is located in the wardrobe; the second position is the clothes hanger position for the user to take and put clothes. The user can set the position according to his own needs. The first direction is defined as the clockwise direction in Figure 5 ; the second direction is defined as the counterclockwise direction in Figure 5 . Through the above definition, the clothes hanger is prevented from rotating from the first position to the second position around the second axis L2 in the counterclockwise direction. This rotation mode is not suitable for the scene of the electric clothes hanger carrier with one side open, that is, through the above definition, the electric clothes hanger can be used in the scene of the wardrobe with one side open. During the rotation and lifting of the clothes hanger, the support body 121 continuously maintains the lifting state of the pivot joint 211, and continuously controls the speed of the rotation and lifting of the clothes hanger.

[0101] When the hanger is in the first position, it maintains a rotational tendency toward the second position in the first direction due to the gravity torque. The torque output component 120 outputs an actuating torque in the second direction to the hanger via the support body 121, thereby driving the hanger to rotate in the second direction toward the first position. Specifically, when the hanger is in the first position, the hanger's center of gravity generates a gravity torque relative to the second axis L2. If the arm 210 is only subjected to the gravity torque at this time, the hanger will rotate from the first position in the first direction to the second position. Therefore, the torque output component 120 outputs an actuating torque in the second direction to the hanger via the support body 121. By controlling the magnitude of the actuating torque, the hanger's movement and position can be controlled. For example, when the actuating torque is equal in magnitude and opposite in direction to the gravity torque of the hanger, the hanger will be stopped. If the actuating torque is greater than the gravity torque, the hanger can be driven to rotate in the second direction. If the actuating torque is less than the gravity torque, the hanger rotates in the first direction driven by the gravity torque, and the speed of the hanger's flipping and descending can be 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, the position of the center of gravity of the hanger is limited. Figure 5 In a two-dimensional orthogonal coordinate system constructed with the second axis L2 as the origin, the center of gravity of the hanger in the first position is located in the first quadrant, and the center of gravity of the hanger in the second position is located in one of the first quadrant, the fourth quadrant, or the positive X-axis. The hanger's gravity is constantly generating a gravitational torque about the second axis L2, thereby ensuring that the hanger consistently tends to move toward the second position. When the actuating torque in the second direction output by the torque output component 120 to the hanger via the support body 121 is less than the hanger's gravitational torque, the hanger can immediately flip and descend without applying an initial torque. The greater the angle at which the hanger's center of gravity deviates from the positive Y-axis, the stronger the hanger's tendency to move toward the second position, and the greater the actuating torque required by the torque output component 120 to maintain the hanger in the first position. Therefore, the angle between the hanger's center of gravity and the positive X-axis is generally set to approximately 88°.

[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 turnover and lifting of the clothes hanger, the first axis L1 and the second axis L2 coincide. During the turnover and lifting of the clothes hanger, the force arm of the actuating force will not change, so the support position of the support body 121 on the torque output component 120 to the pivot part 211 remains unchanged, the actuating force has a constant actuating force arm, so that the size of the actuating torque can be easily obtained, and the trajectory of the turnover and lifting of the clothes hanger is a circular arc, and the change of the gravity torque can also be easily obtained. In this way, the speed of the turnover and lifting of the clothes hanger can be accurately controlled by controlling the size of the actuating force, such as realizing the turnover and lifting of the clothes hanger at a constant speed, or realizing the adjustment of the speed of the turnover and lifting of the clothes hanger according to the set speed change.

[0104] In the present embodiment, in order to realize the coincidence of the first axis L1 and the second axis L2, which means that the first axis L1 of the torque output component and the second axis L2 of the clothes hanger pivot part are the same axis, the distance from the part on the pivot part 211 freely supported by the support body 121 to the axis remains basically unchanged during the turnover of the clothes hanger. Regardless of the turnover and lifting of the clothes hanger, the length of the force arm of the actuating torque is basically constant, so that the clothes hanger obtains a stable actuating torque, the stability of the clothes hanger during lifting is guaranteed, and the unstable factors caused by the change of the force arm are reduced. The coincidence of the axes can simplify the design of the electric clothes hanger, make the mechanical connection between the torque output component 120 and the clothes hanger more direct and efficient, and improve the consistency and predictability of the operation of the clothes hanger.

[0105] Further, as Figure 4 , Figure 8As shown, the torque output component 120 and the pivot part 211 adopt a shaft hole cooperation, specifically, a positioning ring 122 is arranged on the torque output component 120 around the first axis L1, and the pivot part 211 is provided with a positioning hole 2112, the positioning ring 122 cooperates with the positioning hole 2112 for centering and rotary support of the pivot part 211, and this arrangement can expand the contact area of the pivot part 211 with the main machine 100, and is more stable in the process of turning and lifting the clothes hanger. The torque limiting clutch 300 is connected between the positioning ring 122 and the pivot part 211, and the torque limiting clutch 300 makes the pivot part 211 and the positioning ring 122 rotate synchronously at a predetermined torque. Through the torque limiting clutch 300, the positioning ring 122 and the pivot part 211 rotate synchronously at a predetermined torque, so that even if the first position of the clothes hanger is in a vertical state or slightly deviates from the Y positive half-axis and is located in the second quadrant, the torque output component 120 can drive the clothes hanger to turn and descend from the first position to the second position by using the torque limiting clutch 300. However, if an obstacle is encountered during the turning and descending process of the clothes hanger, the obstacle will generate a resistance torque on the clothes hanger, and when the resistance torque is large enough, it will exceed the predetermined torque of the torque limiting clutch 300, at which time the torque limiting clutch 300 will switch to a disengaged state, that is, the pivot part 211 and the positioning ring 122 are disconnected, thereby realizing the anti-pinch function.

[0106] In actual use, it is inevitable that the main machine 100 will have installation errors, resulting in that the clothes hanger does not have a gravitational torque for turning and descending from the first position to the second position. For example, when the center of gravity of the clothes hanger is located on the Y positive half-axis or the second quadrant, and the center of gravity of the clothes hanger is located on the Y-axis, which is also a critical position of the gravitational torque of the clothes hanger. At this time, the gravitational force of the clothes hanger is perpendicular to the second axis L2, and the gravitational torque of the clothes hanger is zero. In this case, the positioning ring 122 on the torque output component 120 can also drive the pivot part 211 to rotate through the torque limiting clutch 300, so that the clothes hanger can pass through the critical position where the gravitational torque is zero, and the gravitational torque of the clothes hanger can drive the clothes hanger to turn and descend from the first position to the second position in the first direction. Moreover, the torque limiting clutch 300 does not affect the original supporting structure of the pivot part 211 and the main machine 100. When the clothes hanger is blocked, the torque generated by the clothes hanger can make the torque limiting clutch 300 in a disengaged state, disconnecting the power transmission between the pivot part 211 and the positioning ring 122, protecting the main machine 100 and avoiding mechanical damage to the third party caused by the actuating force of the clothes hanger when the clothes hanger is blocked.

[0107] Specifically, the torque limiting clutch 300 comprises a pre-tightening member 310, a transmission pin 320 and a transmission groove 330, one of the pivot part 211 and the positioning ring 122 is provided with the pre-tightening member 310 and the transmission pin 320 abutting against each other, and the other is provided with the transmission groove 330, the transmission pin 320 is combined in the transmission groove 330 by the pre-tightening of the pre-tightening member 310. In the embodiment, the transmission groove 330 is provided on the positioning ring 122, the fixed groove 2113 is opened on the pivot part 211, the pre-tightening member 310 abuts between the inner wall of the fixed groove 2113 and the transmission pin 320, the transmission pin 320 is slidingly provided in the fixed groove 2113, and the end of the fixed groove 2113 towards the transmission groove 330 is provided with an opening so as to allow the transmission pin 320 to partially extend into the transmission groove 330 through the fixed groove 2113, the pre-tightening member 310 applies the pre-tightening force to the transmission pin 320 in the direction of the transmission groove 330, so that in the normal transmission condition, the transmission pin 320 is partially located in the transmission groove 330 and partially located in the fixed groove 2113, thereby achieving the purpose of driving the positioning ring 122 and the pivot part 211 to synchronously rotate. The contact surface between the transmission pin 320 and the transmission groove 330 is not provided along the radial direction of the positioning ring 122, and the contact surface between the transmission pin 320 and the transmission groove 330 is a bevel contact or an arc contact, when the clothes hanger is blocked and a larger resistance torque is generated, the inner side wall of the transmission groove 330 applies a force to the transmission pin 320, which can make the transmission pin 320 overcome the pre-tightening force of the pre-tightening member 310 and exit the transmission groove 330, so that the positioning ring 122 and the pivot part 211 are separated.

[0108] Further, in some special cases, such as after the clothes hanger moves to the second position, the power is cut off, and the user still wants to push the clothes hanger back to the first position in order to close the cabinet door, although the user can separate the transmission pin 320 and the transmission groove 330 of the torque limiting clutch 300 by applying force to the clothes hanger, and manually push the clothes hanger back to the first position, at this time, the support body 121 cannot generate the actuating torque to the pivot part 211, the clothes hanger is affected by its own gravity torque, and cannot be kept in the first position, after the user removes the manual support, the clothes hanger will still turn to the second position, causing the cabinet door to be unable to be closed. For example, Figure 4 、 Figure 20As shown, in order to solve the above problems, the torque limiting clutch 300 comprises at least two circumferentially spaced transmission grooves 330, when the clothes hanger is turned down, the transmission pin 320 engages one of the transmission grooves 330, the clothes hanger can be operated to rotate in the second direction to separate from the support body 121 in the opposite direction, and the transmission pin 320 engages another transmission groove 330 in the second direction. That is, when the electric clothes hanger is normally running, the transmission pin 320 cooperates with the transmission groove a to drive the clothes hanger to turn down, when the main machine 100 is powered off, the clothes hanger is manually pushed back from the second position to the first position, the transmission pin 320 is inserted into the transmission groove b, thereby fixing the clothes hanger at the first position, after power is restored, the clothes hanger is manually turned down to the second position, the transmission pin 320 is inserted into the transmission groove a, and the clothes hanger is driven by the main machine 100 to return to the first position. Of course, according to different angles of the clothes hanger to be fixed, more different positions can be provided with transmission grooves 330. The torque limiting clutch 300 can be provided with more than one set, such as the two sets of torque limiting clutch 300 in the embodiment, so as to make the force between the positioning ring 122 and the pivot portion 211 as uniform as possible.

[0109] Although the actuating unit 110 and the torque output component 120 can continue to move without damage during the turning down process of the clothes hanger, the actuating unit 110 cannot continue to run and needs to be stopped in time, therefore, as shown, Figure 3 The electric clothes hanger further comprises a controller and a detection unit, the detection unit detects the turning up and down process of the clothes hanger and can trigger a resistance signal when the clothes hanger rotates in the second direction during the turning down process in the first direction, and the controller is configured to control the actuating unit 110 to stop or reverse according to the resistance signal. That is, whether the state of the turning up and down of the clothes hanger detected by the detection unit is consistent with the running state of the actuating unit 110, such as the actuating unit 110 is still running but the clothes hanger has stopped running, after the detection unit detects this situation, a signal is sent to the controller, and the controller controls the actuating unit 110 to immediately stop running or reverse.

[0110] The detection unit has many such as pulse encoder, grating ruler and so on, considering the practicability and reliability, the detection unit includes Hall sensor 410 and magnetic component 420 in the embodiment, the Hall sensor 410 is fixed in the host computer 100, the magnetic component 420 is installed on the pivot part 211, and the turning down process of the clothes hanger around the second axis L2 can be continuously detected by the Hall sensor 410.So, once the clothes hanger stops moving due to obstruction, the Hall sensor 410 can perceive the running state of the magnetic component 420 and send a signal, and the controller quickly sends an action instruction to the actuating unit 110.For example, in the turning down process of the clothes hanger, the magnetic field generated by the magnetic component 420 sensed by the Hall sensor 410 becomes stronger and stronger, so that it is judged that the turning down process of the clothes hanger is normal;if the magnetic field generated by the magnetic component 420 sensed by the Hall sensor 410 does not change or becomes weaker and weaker in the process that the clothes hanger should be in the turning down process, it is indicated that the clothes hanger stops or moves to the second direction in the turning down process, and the Hall sensor 410 will immediately send a signal to the controller, and the controller sends a stop or reverse running instruction to the actuating unit 110.

[0111] When the above scheme is implemented, as shown in Figure 5 When the user needs to take and put clothes, the control button on the host computer 100 is pressed, the actuating unit 110 is started, the support body 121 on the torque output component 120 is driven to rotate in the first direction (clockwise), and the pivot part 211 will follow the support body 121 to rotate in the first direction under the action of the gravity moment of the clothes hanger, so that the clothes hanger is turned down, and the rotation speed control of the actuating unit 110 can control the turning down speed of the clothes hanger, that is, by adjusting the actuating torque of the support body 121 to the pivot part 211, the speed of the boom 210 is controlled to descend;in this process, the position of the magnetic component 420 can be perceived by the Hall sensor 410, when the pivot part 211 rotates to a specified angle, that is, the boom 210 descends to a specified height, the Hall sensor 410 sends a signal to the controller, and the controller controls the actuating unit 110 to stop running, and the actuating unit 110 stops the boom 210 at the current position by self-locking or the like, so as to facilitate the user to take and put clothes;when the user finishes taking and putting clothes, the control button at the top end of the boom 210 is pressed, the torque output component 120 is started in the reverse direction, the actuating torque is generated through the support body 121 to lift the pivot part 211 to rotate in the second direction (counterclockwise), so that the clothes hanger is turned up, and the boom 210 returns to the initial position.

[0112] The normal turning down of the boom 210 will turn down from the first position as shown in Figure 5 to the second position as shown in Figure 18 As shown in Figure 19As shown, during the process of the turnover and descent of the hanger 210, if the hanger encounters an obstacle, since the torque output component 120 is rotating in the first direction at this time, the support body 121 will not generate a second direction actuating torque on the hanger 210, and the pivot joint 211 will be separated from the support body 121 in the first direction, that is, after the hanger encounters an obstacle, the hanger 210 can stop the turnover and descent, and the actuating unit 110 and the torque output component 120 can continue to move, but after the torque output component 120 moves a certain distance, since the Hall sensor 410 detects that the magnetic component 420 does not move, a signal will be sent to the controller to stop the movement of the actuating unit 110; or, the controller sends a reverse movement signal to the actuating unit 110, and the torque output component 120 moves in the second direction to make the support body 121 support the pivot joint 211 again, to compensate for the separation angle.

[0113] During the normal turnover and descent of the electric hanger, the torque limiting clutch 300 is always in the combined state of the pivot joint 211 and the positioning ring 122, and when the hanger 210 is blocked during the turnover and descent, the pivot joint 211 and the positioning ring 122 will rotate relative to each other, which will force the transmission pin 320 to be separated from the transmission groove 330, to avoid the power of the actuating unit 110 being transmitted to the pivot joint 211. When the actuating unit 110 reverses a certain angle, the transmission groove 330 is aligned with the transmission pin 320, and under the pushing of the pre-tightening piece 310, the transmission pin 320 is re-inserted into the transmission groove 330, so that the torque limiting clutch 300 is re-combined, and the torque within a certain limit can be transmitted from the actuating unit 110 to the pivot joint 211. When the main machine installation deviates, the center of gravity of the hanger is located on the Y positive half-axis or slightly deviates from the Y positive half-axis and is located in the second quadrant, the torque limiting clutch 300 can also drive the pivot joint 211 to rotate in the first direction, so that the center of gravity of the hanger enters the first quadrant, and the hanger can realize the turnover and descent by relying on the self-gravitational torque.

[0114] After the above-mentioned embodiment is adopted, since the pivot joint 211 of the hanger 210 is only freely supported by the support body 121, and the support body 121 only resists the gravitational torque to hinder the rotation of the hanger from the vertical position to the horizontal position, if the hanger is hindered during the rotation from the vertical position to the horizontal position, the support body 121 will be separated from the pivot joint 211, so that the resistance encountered by the hanger will not be transmitted to the torque output component 120 and the actuating unit 110, and damage to the actuating unit 110 and the torque output component 120 caused by the resistance encountered by the hanger during the descent can be avoided, to protect the safety of the main machine 100.

[0115] Embodiment Two

[0116] The prior art actuating unit 110 includes a motor 111, which drives a screw rod to rotate, and the screw rod drives a nut screwed on the screw rod to move axially along the screw rod, and the nut drives a crank to swing in the form of a lever through a transmission member, and the crank drives the clothes hanger to overturn and lift. In the above structure, the main machine 100 needs to occupy a large space because the screw rod needs to rotate to drive the nut to move to drive the crank. The movement form is converted from rotary motion to linear motion and then to rotary motion, the transmission efficiency is greatly reduced, and the crank mechanism has a limited load bearing capacity and is prone to breakage.

[0117] As Figures 6 to 9 The embodiment two of the electric clothes hanger is shown in the figure, which can be implemented on the basis of the embodiment one or other electric clothes hangers. The actuating unit 110 of the electric clothes hanger is different from the prior art. The actuating unit 110 includes a motor 111 and a speed reducer 112. The speed reducer 112 includes a worm and gear mechanism and a planetary reducer 1121. The worm and gear mechanism is transmissionally connected to the motor 111. The worm 1122 of the worm and gear mechanism, the planetary reducer 1121 and the torque output component 120 are coaxially transmissionally connected. The worm and gear mechanism does not need to produce axial displacement in the movement process like the prior art, so the size of the whole main machine 100 is reduced. The planetary reducer 1121 is adopted, which can not only reduce the rotating speed of the torque output component 120 to realize accurate control of the overturning and lifting position of the clothes hanger, but also can output a large torque to realize the lifting of a large load.

[0118] Further, the worm and gear mechanism is internally provided with a self-locking structure. The self-locking structure can make the clothes hanger stay at any position in the overturning and lifting process, that is, the clothes hanger can hover at a position between the first position and the second position. In this way, the user can freely adjust the height at which the clothes hanger stays according to the actual situation. Specifically, the self-locking structure includes at least one of the following structures:

[0119] The helical teeth of the worm 1123 and the gear teeth of the worm wheel 1122 constitute a one-way friction self-locking structure, 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 utilizes the friction force 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 smaller than the equivalent friction angle between the meshing teeth, the self-locking function can be realized. The smaller the lead angle of the worm 1123 and the worm wheel 1122, the higher the self-locking performance, and the easier the self-locking occurs.

[0120] Or, as disclosed in the technical solution of CN113653782A, the host 100 includes a housing 130 accommodating the actuating unit 110 and the torque output component 120, the non-engagement section of the worm 1123 is sleeved with a friction ring 1124, the friction ring 1124 is provided with a notch, and the outer periphery of the friction ring 1124 is provided with a limiting portion, and the housing 130 cooperates with the limiting portion to make the friction ring 1124 tightly hold the worm 1123 when the worm 1123 is reversed by the load torque of the clothes hanger, thereby implementing one-way self-locking.

[0121] As shown in Figure 8 , Figure 9 In this embodiment, a two-stage planetary reducer 1121 is used, which can increase the output torque without being too large in size, and is suitable for installation in objects such as clothes, of course, according to the model and installation position of the motor 111 and the load and other conditions, a higher-stage planetary reducer 1121 can also be configured. The planetary reducer 1121 includes at least two coaxial series-connected planetary gear trains 1125, the sun gear 1126 of the first-end planetary gear train 1125 is coaxially driven with the worm wheel 1122, which improves the installation tightness of the planetary gear train 1125 and the worm wheel 1122, and the planetary retainer 1127 of the last-end planetary gear train 1125 is coaxially driven with the torque output component 120, or the planetary retainer 1127 of the last-end planetary gear train 1125 serves as the torque output component 120. In this embodiment, the planetary retainer 1127 of the last-end planetary gear train 1125 serves as the torque output component 120, one end surface of the planetary retainer 1127 is provided with an axle connected with the last-end planetary gear train 1125, and the other end of the planetary retainer 1127 is provided with a support body 121 cooperating with the pivot portion 211.

[0122] Further, the actuating unit 110 further includes a centering shaft 113 non-rotatably arranged in the host 100, the worm wheel 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 wheel 1122, the planetary reducer 1121 and the torque output component 120 is determined by the centering shaft 113, which ensures that they can rotate around the first axis L1.

[0123] In the embodiment, the length direction of the whole host 100 is generally vertically arranged or horizontally arranged due to the accommodation of the actuating unit 110 and the torque output unit in the casing 130 of the host 100. 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 arranged obliquely in the embodiment, that is, the angle a between the axis of the motor 111 and the length direction of the casing 130 is an acute angle, and the projection of the gravity center of the motor 111 on the plane perpendicular to the axis of the length direction of the casing 130 is located in the projection of the reduction unit 112 on the plane, that is, if the casing 130 is vertically arranged, the length direction of the casing 130 is the vertical direction, the projection of the gravity center of the motor 111 on the horizontal plane is located in the projection of the reduction unit 112 on the horizontal plane, so that the length of the casing 130 can be shortened while the increase of the width of the casing 130 is reduced or avoided.

[0124] Further, the casing 130 is vertically arranged, the gravity center of the motor 111 is located directly below the first axis L1, that is, the gravity center of the motor 111 and the gravity center of the reduction unit 112 are located on the same vertical line, so that the gravity center of the whole host 100 can be stabilized.

[0125] In the embodiment, the worm and gear mechanism and the planetary reducer 1121 are used as the reduction unit 112, so that there is no translation element in the power transmission process, the transmission efficiency is improved, and the length of the host 100 is shortened by optimizing the arrangement of the motor 111 in the casing 130. In the prior art, the lead screw needs to be arranged away from the center of the swing arm to drive the swing arm to swing, so that a certain space is occupied in the width direction of the host 100. In the present application, the lead screw nut transmission structure is cancelled, the planetary reducer 1121 directly drives the boom 210 to swing through the pivot part 211, so that the width of the host 100 is reduced, and the width and length of the whole host 100 are reduced. The planetary reducer 1121 can not only realize accurate control of the descending position of the clothes hanger, but also output 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 fixed in the casing 130, and then the casing 130 is fixed on the carrying component such as the 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 strength of the casing 130 is not enough, the casing 130 will be damaged, or the strength of the casing 130 needs to be increased, which will increase the overall manufacturing cost.

[0128] As Figures 6 to 14 The embodiment three of the electric clothes hanger is shown in the utility model, which can be implemented on the basis of the embodiment one or two, and can be applied to electric clothes hangers of other structures, and solves the problem that the load bearing of the electric clothes hanger in the prior art is restricted by the strength of the casing 130. In the embodiment, the main machine 100 comprises the casing 130 for accommodating the actuating unit 110 and the torque output component 120, the actuating unit 110 comprises the reduction box 114 for accommodating the reduction unit 112, the gear ring of the planetary reduction gear 1121 is fixed on the reduction box 114 or constitutes a part of the reduction box 114, and preferably, the gear ring is taken as a part of the reduction box 114, so as to improve the integration of the whole reduction box 114 and reduce the volume of the reduction box 114. The electric clothes hanger further comprises the load bearing 500 fixed on the electric clothes hanger carrier, that is, the load bearing 500 is directly fixed on the cabinet body 800, so that it is easier to install the load bearing 500 to the accurate position and angle, and the fixation of the main machine 100 and the load bearing 500 is facilitated. The reduction is provided with the torque transmission component 115, the torque transmission component 115 is connected to the load bearing 500 through the through hole 131 on the casing 130, and the load torque of the clothes hanger is guided to bypass the casing 130 and directly reach the load bearing 500 through the torque transmission component 115. Through the torque transmission component 115 and the connection mode of the torque transmission component 115, the casing 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 clothes hanger is directly transmitted to the load bearing 500 through the torque transmission component 115, so that the strength requirement of the casing 130 is greatly reduced, and under the premise of meeting the accommodation role, the casing 130 can be made as light and thin as possible without considering the influence of the torque. The torque transmission component 115 can be fixed in place with the main machine, the load bearing 500 can be installed on the electric clothes hanger carrier in advance, and finally the torque transmission component 115 and the load bearing 500 are fixedly connected, so as to more accurately determine the position and angle of the main machine 100 after installation.

[0129] Further, the outer side of the casing 130 is provided with the concave cavity 132, and the load bearing 500 is at least partially accommodated in the concave cavity 132. After the main machine 100 is installed on the load bearing 500, the casing 130 can be as close as possible to the electric clothes hanger carrier, the gap between the casing 130 and the electric clothes hanger carrier is reduced, and the overall aesthetic degree is improved.

[0130] As Figure 10 , Figure 13As shown, in order to realize the quick installation of the host 100 and the load-bearing member 500, the torque transmission component 115 includes a torque transmission rod 1151 and a flange 1152 extending radially outward on the torque transmission rod 1151, the load-bearing member 500 is provided with an open upper end load-bearing groove 510, the torque transmission rod 1151 is hung in the load-bearing groove 510 through the opening, the open upper end can ensure that the load-bearing member 500 will not come out of the load-bearing groove 510 under the condition that the host 100 is not subjected to an upward external force or is subjected to a smaller upward external force, and the flange 1152 forms an axial stop with the load-bearing member 500 around the load-bearing groove 510 to limit the axial movement of the torque transmission component 115, thereby realizing the fixed connection of the host 100 and the load-bearing member 500. The opening of the load-bearing groove 510 at the upper part of the load-bearing member 500 is upwardly communicated with the outside, so that the upper part of the load-bearing member 500 can avoid reserving excessive size due to the closed annular load-bearing groove 510, thereby the size of the load-bearing member 500 can be reduced, and the size of the concave cavity 132 on the casing 120 is also reduced, thereby avoiding the size of the casing 130 from being too large due to the size of the load-bearing member 500.

[0131] Further, the load-bearing groove 510 is provided with an abutting portion 511 of the stop flange 1152 in the load-bearing groove 510 to limit the axial movement of the torque transmission component 115 in the axial direction. The abutting portion 511 is arranged in the load-bearing groove 510, which can avoid the exposure of the abutting portion 511 and ensure the overall appearance, and can prevent the abutting portion 511 from hindering the external side surface of the load-bearing member 500 from closely attaching to the clothes hanger carrier. The load-bearing member 500 is in the form of a plate or a block, and the external side surface refers to the end surface of the load-bearing member 500 away from the host.

[0132] Further, the load-bearing groove 510 between the abutting portion 511 and the external side surface of the load-bearing member 500 is provided with a receiving portion 512, and the flange 1152 is received in the receiving portion 512. The flange 1152 is located at the end of the torque transmission rod 1151, so that after the flange 1152 is stopped by the abutting portion 511, the flange 1152 is completely received in the receiving portion 512 and does not protrude from the external side surface of the load-bearing member 500, so that the external side surface of the load-bearing member 500 can closely attach to the clothes hanger carrier, and the installation of the load-bearing member 500 is more stable.

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

[0134] Further, the torque transmission rod 1151 further comprises a first positioning portion 1154 for limiting the length of the torque transmission rod 1151 extending out of the reduction box 114, the first positioning portion 1154 extends radially outward on the torque transmission rod 1151 and abuts against the reduction box 114 around the second fixing portion 1141, the length of the first fixing portion 1153 entering the second fixing portion 1141 is defined by the first positioning portion 1154, and the first positioning portion 1154 and the second first positioning portion 1154 are ensured to be installed in place.

[0135] As shown in Figure 3 , Figure 5 , Figure 14 , the torque output component 120 has a centering hole 123 penetrated by the first axis L1, the casing 130 is provided with a centering seat 133 axially embedded in the centering hole 123 and a first radial bearing 140 is arranged between the centering seat 133 and the centering hole 123, a second radial bearing 150 is arranged between the worm and gear mechanism worm gear 1122 and the reduction box 114, the support of the planetary reducer 1121, the torque output component 120 and the worm gear 1122 by the casing 130 is realized through the first radial bearing 140 and the second radial bearing 150, and the above-mentioned three can rotate around the first axis L1 is ensured, the rotation axis of the worm gear 1122 is also the first axis L1 through the second radial bearing 150, and the worm gear 1122 can rotate freely relative to the reduction box 114.

[0136] As shown in Figure 11 , Figure 12 , during installation, the load-bearing member 500 is first fixed on the clothes hanger carrier, that is, the load-bearing member 500 is fixed on the side wall of the cabinet body, the load-bearing member 500 is tightly attached to the side wall of the cabinet body, and the opening of the load-bearing groove 510 is upward, then the torque transmission component 115 is aligned with the opening of the load-bearing groove 510, after the flange 1152 passes through the opening, the entire main machine 100 is moved downward relative to the load-bearing member 500, the flange 1152 is stopped by the abutting portion 511, that is, the fixation of the main machine 100 is completed. If it is necessary to disassemble the main machine 100, the above-mentioned steps are reversed, and the main machine 100 can be removed. The structure of the present embodiment not only facilitates the positioning of the main machine 100, but also reduces the strength requirement of the casing 130, allows the torque of the actuating unit 110 to be directly transmitted to the load-bearing member 500, is conducive to reducing the cost, and allows the main machine 100 to bear a higher torque.

[0137] Embodiment Four

[0138] The existing clothes hanger rod 220 and the hanging arm 210 are basically fixedly connected, which causes relative friction between the clothes hanger rod 220 and the metal clothes hanger 600 hung on the clothes hanger rod 220 when the clothes hanger is turned over and lifted, and noise is generated.

[0139] As shown in Figure 2 ,Figures 15 to 17 The embodiment four of the electric clothes hanger is shown, which can be applied on the basis of any one of the embodiments one to three, and can be applied to other turnover lifting clothes hangers, and solves the problem of noise generated by relative rotation of the clothes hanger rod 220 and the metal clothes hanger 600 during turnover lifting. The clothes hanger comprises a hanger arm 210 connected in transmission with the main machine 100 and a clothes hanger rod 220 attached to the hanger arm 210, and the end of the clothes hanger rod 220 is rotatably connected with the hanger arm 210 through a rotary connecting piece, so as to keep the clothes hanger rod 220 and the hanging object relatively stationary during the movement of the hanger arm 210, and the hanging object can be the metal clothes hanger 600 or other objects hung on the clothes hanger rod 220, and the clothes hanger rod 220 will rub against the object to generate noise during rotation.

[0140] The rotary connecting piece comprises a third radial bearing 710 or a component having the same rotary connecting function as the third radial bearing 710, such as an axle hole coated with a lubricant such as molybdenum disulfide, polytetrafluoroethylene coating, etc. to form a rotary connecting piece. The third radial bearing 710 is mature in technology and will not generate noise during operation, and the third radial bearing 710 is taken as an example for introduction in the embodiment.

[0141] The hanger arm 210 comprises a pivot joint part 211 matched in transmission with the main machine 100, and a connecting part 212 extending radially outward from the pivot joint part 211, which can be a rod or a strip, and the connecting part 212 and the pivot joint part can be integrally formed or detachably fixedly connected. The clothes hanger rod 220 is connected at the end of the connecting part 212 of the two hanger arms 210. One end of the clothes hanger rod 220 is connected with one of the connecting parts 212 of the corresponding hanger arms 210 and the inner hole of the third radial bearing 710, and the other end is connected with the outer ring of the third radial bearing 710. Generally, the clothes hanger rod 220 is fixedly connected with the inner hole of the third radial bearing 710, and the outer ring of the third radial bearing 710 is fixed on the hanger arm 210, so that the rod structure of the clothes hanger rod 220 can be fully utilized, and the third radial bearing 710 is fixed on the hanger arm 210 by means of the mounting hole.

[0142] Further, the electric clothes hanger further comprises a first adapter 720, the first adapter 720 comprises a first adapter shaft 721 and a second adapter shaft 722, the first adapter shaft 721 is connected with the inner hole of the third radial bearing 710, and the second adapter shaft 722 is fixedly connected with the clothes hanger rod 220. Since the clothes hanger rod 220 is fixedly connected with the inner hole of the third radial bearing 710 in the embodiment, the second adapter shaft 722 is fixedly connected with the clothes hanger rod 220. If the hanging arm 210 is fixedly connected with the inner hole of the third radial bearing 710, the second adapter shaft 722 of the first adapter 720 is fixedly connected with the hanging arm 210. The first adapter 720 is arranged to play a connecting role. If the clothes hanger rod 220 is directly fixedly connected with the inner hole of the third radial bearing 710, the size of the inner hole of the third radial bearing 710 will limit the diameter of the clothes hanger rod 220. If the clothes hanger rod 220 is made thicker, the size of the third radial bearing 710 will also be larger, so that the third radial bearing 710 cannot be fixedly connected with the hanging arm 210. Therefore, the first adapter 720 is used as a connecting piece between the clothes hanger rod 220 or the hanging arm 210 and the third radial bearing 710. The strength of the first adapter 720 can be increased to meet the requirements, and the hollow structure of the clothes hanger rod 220 is fully utilized, so that the second adapter shaft 722 can be inserted into the clothes hanger rod 220 along the axial direction of the clothes hanger rod 220 from the end of the clothes hanger rod 220, without the need of making special changes to the clothes hanger rod 220.

[0143] Further, the third radial bearing 710 of the embodiment is a ball third radial bearing 710, and a first axial limiting surface 723 is further arranged on the first adapter 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 adapter 720 is abutted with the third radial bearing 710 in place, so that axial relative movement between the third radial bearing 710 and the first adapter 720 is avoided during use.

[0144] In addition, the electric clothes hanger further comprises a second adapter 730, the second adapter 730 is detachably fixedly connected with the first adapter 720, and the third radial bearing 710 is fixed between the first adapter 720 and the second adapter 730. Since one end of the third radial bearing 710 is limited by the first axial limiting surface 723, a second axial limiting surface 731 can be arranged on the second adapter 730 to limit the other end surface of the inner ring of the third radial bearing 710. Specifically, a threaded hole can be formed in the end surface of the first adapter shaft 721 of the first adapter 720, and a bolt is used to realize detachable connection between the second adapter 730 and the first adapter 720. The head of the bolt forms the second axial limiting surface 731. When the bolt is tightened on the first adapter shaft 721, the third radial bearing 710 is fixedly connected with the first adapter 720 in the axial direction.

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

[0146] Further, the second positioning part 741 only positions and fixes the rotating connecting piece on one side of the connecting hole 740 in the axial direction, and the rotating connecting piece can be fixedly connected with the connecting hole 740 by means of friction or the like, but a more secure way is to arrange the first fixing part 750 in the connecting hole 740, which is detachably connected with the connecting hole 740, and the first fixing part 750 abuts against the end surface of the rotating connecting piece facing the opening of the connecting hole 740, so that the first fixing part 750 and the second positioning part 741 axially fix the rotating connecting piece in the connecting hole 740. The second positioning part 741 can be a screw or an object with a similar structure, and the second positioning part 741 is fixedly connected with the connecting hole 740 by threads, and the tail part of the second positioning part 741 forms a positioning surface abutting against the end surface of the rotating connecting piece facing the opening of the connecting hole 740.

[0147] The electric clothes hanger further comprises a shielding part 760 shielding the opening of the connecting hole 740, and the shielding part 760 can be directly fixed on the rotating connecting piece, such as being fixed on the outer ring end wall of the third radial bearing 710, or being fixed on the first connecting part 720 or being integrally manufactured with the first connecting part 720. The shielding part 760 avoids the exposure of the opening of the connecting hole 740, prevents foreign matters from entering the connecting hole 740, avoids affecting the normal operation of the third radial bearing 710, improves the overall appearance, and the shielding part 760 can also abut against the opening of the connecting hole 740, so as to determine whether the rotating connecting piece is installed in place.

[0148] On the basis of the above-mentioned embodiments, the rotary connecting piece can be directly connected with the end of the hanging arm 210, and the hanging arm 210 is also generally a rod-shaped structure. In order to reduce the manufacturing difficulty, a corner piece 770 is arranged at the end of the hanging arm 210. The corner piece 770 is provided with a connecting hole 740 for cooperating with the rotary connecting piece. Meanwhile, a controller or other equipment can be arranged on the corner piece 770 to facilitate the control of the electric clothes hanger. For the connection between the corner piece 770 and the hanging arm 210, a plug-in connection mode can be adopted, that is, the corner piece 770 is provided with a plug hole 771 for plugging with the hanging arm 210. This is conducive to reducing the installation difficulty.

[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 communicated. Therefore, when some components are installed in the connecting hole 740, tools can be inserted through the plug hole 771 for convenient operation. In the present embodiment, the connecting hole 740 is not directly arranged on the hanging arm 210 to reduce the manufacturing difficulty of the hanging arm 210. Instead, the connecting hole 740 is arranged on the corner piece 770, which is also convenient for the modification of existing electric clothes hangers. The rotary connecting piece in the present embodiment includes a third radial bearing 710, and the connecting hole 740 is a two-stage stepped 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 stage of the connecting hole 740, and the first stage forms a second positioning portion 741. A threaded hole is arranged on the second stage of the connecting hole 740, and a first fixing piece 750 is screwed into the threaded hole. The tail of the first fixing piece 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 piece 770. If the diameter of the clothes hanger rod 220 is relatively small, the clothes hanger rod 220 can be directly inserted into the inner hole of the third radial bearing 710, so that the clothes hanger rod 220 and the hanging object can be kept relatively stationary during the turning and lifting of the clothes hanger. If the diameter of the clothes hanger rod 220 is relatively large, the first butt joint piece 720 is needed to realize the connection between the clothes hanger rod 220 and the third radial bearing 710. The first butt joint shaft 721 of the first butt joint piece 720 is inserted into the inner hole of the third radial bearing 710, and the second butt joint shaft 722 of the first butt joint piece 720 is inserted into the clothes hanger rod 220. Further, in order to improve the connection firmness of the first butt joint piece 720 and the third radial bearing 710, a second butt joint piece 730 is arranged in the connecting hole 740. The first butt joint piece 720 and the second butt joint piece 730 can also be detachably connected in a threaded connection mode. The first butt joint piece 720 and the second butt joint piece 730 clamp the inner ring of the third radial bearing 710 from two directions along the axial direction of the third radial bearing 710, thereby realizing the firm connection between the first butt joint piece 720 and the third radial bearing 710. Through the above-mentioned scheme, the problem that the clothes hanger rod 220 rotates relative to the hanging object during the turning and lifting of the clothes hanger, thereby producing noise, is solved.

[0150] The above merely describes specific embodiments of the present application, but the technical features of the present application are not limited thereto, and any person skilled in the art can make changes or modifications in the field of the present application, and the changes or modifications are covered in the patent range of the present application.

Claims

1. An electrically powered clothes hanger characterised in that, The application relates to a clothes hanger, comprising: a main machine, including an actuating unit and a torque output component, 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 and deviates from the first axis; a clothes hanger, including a hanging arm with a pivot joint and a clothes hanger rod attached to the hanging arm, the pivot joint is pivoted to the main machine to form a second axis, the clothes hanger can be flipped and lifted around the second axis, and a part of the pivot joint deviating from the second axis is freely supported by the support body, so that the clothes hanger can be flipped and lowered in response to a gravity torque when the torque output component outputs an actuating torque in a first direction, and the clothes hanger can be reversely rotated in a second direction opposite to the first direction and separated from the support body during the process of being flipped and lowered in the first direction.

2. The motorized clothes rack of claim 1, wherein, An arc-shaped first guide groove is arranged on the pivot joint around the second axis, and 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 process of being flipped and lowered.

3. The motorized clothes rack of claim 2, wherein, The pivot joint is disc-shaped, the first guide groove penetrates through the pivot joint from one axial side 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 motorized clothes rack of claim 1, wherein, An arc-shaped second guide groove is arranged on the torque output component around the first axis, a guide pin axially extends out of the part of the pivot joint 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 motorized clothes rack of claim 1, wherein, The clothes hanger is flipped and lifted around the second axis between a first position and a second position lower than the first position, a rotation direction from the first position to the second position is defined as the first direction, and a rotation direction from the second position to the first position is defined as the second direction, the clothes hanger keeps a rotation tendency to the second position in the first direction under the action of the gravity torque when the clothes hanger is in the first position, and the torque output component outputs an actuating torque in the second direction to the clothes hanger through the support body to drive the clothes hanger to rotate to the first position in the second direction.

6. The motorized clothes rack of claim 5, wherein, In a two-dimensional orthogonal coordinate system established with the second axis as the origin, a gravity center of the clothes hanger in the first position is located in the first quadrant, and a gravity center of the clothes hanger in the second position is located in one of the first quadrant, the fourth quadrant and the X positive half-axis.

7. The motorized clothes rack of claim 1, wherein, The first axis and the second axis are coincident.

8. The motorized clothes rack of claim 7, wherein, A positioning ring is arranged on the torque output component around the first axis, and a positioning hole is arranged on the pivot joint, the positioning ring is matched with the positioning hole for centering and rotation supporting of the pivot joint.

9. The motorized clothes rack of claim 8, wherein, A torque limiting clutch is connected between the positioning ring and the pivot joint, and the torque limiting clutch makes the pivot joint and the positioning ring synchronously rotate under a predetermined torque.

10. The motorized clothes rack of claim 9, wherein, The torque limiting clutch comprises a pre-tightening piece, a transmission pin and a transmission groove, one of the pivot joint and the positioning ring is provided with the pre-tightening piece and the transmission pin in abutment, and the other is provided with the transmission groove, and the transmission pin is pre-tightened by the pre-tightening piece and is engaged in the transmission groove.

11. The motorized clothes rack of claim 10, wherein, The torque limiting clutch comprises at least two circumferentially spaced transmission grooves, when the clothes hanger is flipped down, the transmission pin engages one of the transmission grooves, the clothes hanger can be operated to rotate in the second direction to separate from the support body in the opposite direction, the transmission pin engages another transmission groove in the second direction.

12. The motorized clothes rack of claim 1, wherein, The motorized clothes hanger further comprises a controller and a detection unit, the detection unit detects the flipping and lifting process of the clothes hanger and can trigger a resistance signal when the clothes hanger rotates in the second direction during the flipping and lifting process in the first direction, the controller is configured to control the actuating unit to stop or reverse according to the resistance signal.

13. The motorized clothes rack of claim 12, wherein, The detection unit comprises a Hall sensor and a magnetic component, the Hall sensor is fixed in the main machine, the magnetic component is installed on the pivot, and the flipping and lifting process of the clothes hanger around the second axis can be continuously detected by the Hall sensor.

14. The motorized clothes rack according to one of claims 1 to 13, characterized in that The actuating unit comprises a motor and a speed reduction unit, the speed reduction unit comprises a worm and gear mechanism and a planetary reducer, the worm and gear mechanism is drivingly connected to the motor, and the worm gear of the worm and gear mechanism, the planetary reducer and the torque output component are coaxially transmitted.

15. The motorized clothes rack of claim 14, wherein, The worm and gear mechanism is internally provided with a self-locking structure, which comprises at least one of the following structures: The helical teeth of the worm and the gear teeth of the worm gear form a one-way friction self-locking, so that the worm can drive the worm gear, but the worm gear cannot drive the worm; The non-meshing section of the worm is sleeved with a friction ring, which tightly holds the worm when the worm is reversed due to the load torque of the clothes hanger, thereby implementing one-way self-locking; The self-locking structure enables the clothes hanger to hover at any position during the flipping and lifting process.

16. The motorized clothes rack of claim 14, wherein, The planetary reducer comprises at least two coaxially connected planetary gear trains, the sun gear of the first planetary gear train is coaxially transmitted with the worm gear, the planetary carrier of the last planetary gear train is coaxially transmitted with the torque output component, or the planetary carrier of the last planetary gear train serves as the torque output component.

17. The motorized clothes rack of claim 14, wherein, 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 centering shaft determines the first axis.

18. The motorized clothes rack of claim 14, wherein, The main machine comprises a machine shell which accommodates the actuating unit and the torque output component, the actuating unit comprises a speed reduction box which accommodates the speed reduction unit, the gear ring of the planetary reducer is fixed on the speed reduction box or constitutes a part of the speed reduction box, the motorized clothes hanger further comprises a load bearing member fixed on the motorized clothes hanger carrier, the speed reduction box is provided with a torque transmission component, the torque transmission component penetrates through a through hole on the machine shell and is connected to the load bearing member, and the load torque of the clothes hanger is guided to bypass the machine shell and directly reach the load bearing member through the torque transmission component.

19. The motorized clothes rack of claim 18, wherein, The outer side of the machine shell is provided with a recess, and the load bearing member is at least partially accommodated in the recess.

20. The motorized clothes rack of claim 18, wherein, The torque transmission component comprises 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 open upper end, the torque transmission rod is hung in the load bearing groove through the opening, and the flange forms an axial stop with the load bearing member around the load bearing groove to limit the axial movement of the torque transmission component.

21. The motorized clothes rack of claim 18, wherein, The torque output component has a centering hole through which the first axis penetrates, the machine shell is provided with a centering seat, the centering seat is axially embedded into the centering hole and a first radial bearing is arranged between the two, and a second radial bearing is arranged between the worm gear of the worm and worm gear mechanism and the reduction box.

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