Steel wire rope control system of clothes airing machine
By detecting the speed of the steel wire rope through a feedback controller and encoder, and combining it with a metal bracket and gearbox structure, the problem of uniform speed raising and lowering of the steel wire rope in the clothes drying rack is solved, enabling stable and safe raising and lowering of the drying rod and improving the performance of the clothes drying rack.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-07
AI Technical Summary
The existing wire rope control system of clothes drying racks has an uneven wire release speed when driven at a constant speed, which causes the drying rod to descend faster, posing a safety hazard.
A feedback controller is used to detect the winding and unwinding speed of the wire rope, and the motor speed is controlled by the feedback of the encoder. Combined with the metal bracket and gearbox structure, the wire rope can be wound and unwinded at a uniform speed.
It achieves smooth and safe raising and lowering of the drying rack, improves performance and user experience, and ensures stable operation of the clothes drying rack.
Smart Images

Figure CN224091532U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a clothes drying rack, and more particularly to a steel wire rope control system for the clothes drying rack, which controls the raising and lowering of the steel wire rope to achieve uniform raising and lowering of the drying rod. Background Technology
[0002] The clothes drying rack includes a main unit and a lifting drying rod. The main unit is equipped with a wire rope control device, which controls the raising and lowering of the drying rod by controlling the extension and retraction of the wire rope.
[0003] A winding reel device for a clothes drying rack, as disclosed in CN207046742U, includes a motor, a winding reel sleeved on the motor output shaft, the winding reel including three winding plates, and a winding groove formed between two winding plates.
[0004] A clothes drying rack winding structure according to CN206625039U includes a motor, a reduction gear chamber, a winch, a first wire rope and a second wire rope, and two parallel wire-threading grooves in the middle of the winch.
[0005] The winding groove of the aforementioned winch extends radially in depth, and the outer diameter of the wire rope gradually increases as it winds within the groove. This winding method results in a relatively small winch size, making it easier to install in a slim and lightweight main unit. However, it also presents the following problems: when the winch is driven to rotate by a constant-speed motor, the wire rope released with each rotation of the winch becomes longer and longer, meaning the descent speed of the drying rack increases, posing a certain safety hazard. Utility Model Content
[0006] The technical problem to be solved by this utility model is to provide a wire rope control device for a clothes drying rack that allows the drying rod to rise and fall at a uniform speed.
[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a steel wire rope control system for a clothes drying rack, including a metal bracket, a motor, a gearbox, a twisted wire reel, and a feedback controller; the motor and gearbox are fixed on the metal bracket, and the metal bracket is fixed on the main unit housing;
[0008] The output shaft of the motor is connected to the input end of the gearbox, and a rotating shaft is provided at the output end of the gearbox;
[0009] The stranded coil includes a top plate, a middle plate, and a bottom plate, forming two parallel, radially extending winding grooves.
[0010] The rotating shaft passes through and is fixed at the middle position of the top plate, the middle plate and the bottom plate;
[0011] A feedback controller includes a roller with a groove and an encoder, wherein a steel wire rope led from a stranded reel passes through the groove of the roller to drive the roller to rotate, and the encoder detects the rotational speed of the roller.
[0012] The encoder feeds back the roller rotation speed to the controller, which in turn controls the motor speed to adjust accordingly so that the wire rope can be wound and unwound at a uniform speed.
[0013] A further preferred embodiment of this utility model is as follows: a rotating arm is mounted on the metal bracket, the first end of the rotating arm is axially connected to the metal bracket; the feedback controller is mounted on the second end of the rotating arm; a tension spring is provided between the second end of the rotating arm and the metal bracket; an up switch is provided on the metal bracket, and the up switch is located on the rotation path of the rotating arm.
[0014] A further preferred embodiment of this utility model is that the stranded wire is located on the first side of the gearbox;
[0015] The gearbox is provided with a lifting limit mechanism on the second side; the first side and the second side are opposite sides of the gearbox.
[0016] A further preferred embodiment of this utility model is: the gearbox includes a housing and a first gear, a second gear and a third gear of the housing;
[0017] The first gear meshes with the output shaft of the motor, and the second gear is fixed together with the first gear on the same axis.
[0018] The second gear meshes with the third gear; the rotating shaft is fixed coaxially with the third gear.
[0019] A further preferred technical solution of this utility model is: the lifting and limiting mechanism includes a lower limit micro switch, an upper limit micro switch and a trigger turntable assembly installed on the outside of the gearbox housing cover;
[0020] The trigger turntable assembly includes a first turntable and a second turntable located on the outside of the upper cover, with the second turntable disposed on the first turntable;
[0021] The first rotating disk has a first actuating element on its outer periphery, and the second rotating disk has a second actuating element on its outer periphery; the stranded wire reel is driven by the first rotating disk through a first gear set; the second rotating disk is driven by the first rotating disk through a second gear set.
[0022] When the first rotating disk rotates in the first direction, the first actuating element touches the lower limit micro switch to stop the drying rod from descending; when the second rotating disk rotates in the second direction, the second actuating element touches the upper limit micro switch to stop the drying rod from rising.
[0023] A further preferred embodiment of this utility model is as follows: the first gear set includes a top tooth fixed on the third gear, a composite tooth mounted on the upper cover, and a first inner annular tooth inside the first rotating disk;
[0024] The top tooth passes through the upper cover, and the composite tooth includes an integral upper tooth portion and a lower tooth portion; the top tooth meshes with the lower tooth portion, and the upper tooth portion meshes with the first inner annular tooth.
[0025] The second gear set includes a transmission tooth eccentrically disposed on the first rotating disk and a second inner annular tooth on the second rotating disk. The transmission tooth includes a lower insert post and an upper transmission tooth portion.
[0026] The first rotating disk is provided with a socket, and the plug is rotatably located in the socket;
[0027] The transmission teeth mesh with the second inner annular teeth.
[0028] A further preferred embodiment of this utility model is as follows: the center of the second rotating disk is provided with a through hole, the second inner annular tooth is provided at the lower part of the outer periphery of the through hole, a step is provided at the upper part of the outer periphery of the through hole, and a cover plate is provided on the step.
[0029] An adjustment section with an extension cover plate is provided above the transmission gear, and the adjustment section has an adjustment hole.
[0030] A further preferred technical solution of this utility model is as follows: when the drying rod encounters resistance during descent and the wire rope loses its preset tension, the tension spring drives the rotating arm to rotate and triggers the lifting switch to shut off the motor.
[0031] A further preferred embodiment of this utility model is: when the drying rod rises and the wire rope is wound, the feedback controller controls the motor speed to gradually increase;
[0032] As the drying rack descends and the wire rope is released, the feedback controller controls the motor speed to gradually decrease.
[0033] This ensures that the steel wire rope is raised and lowered at a uniform speed.
[0034] A further preferred embodiment of this utility model is: a first concave-convex positioning structure is provided between the top plate and the middle plate, and a second concave-convex positioning structure is provided between the bottom plate and the middle plate;
[0035] The top plate, middle plate, and bottom plate are connected and fixed together by screws.
[0036] Compared with existing technologies, the advantages of this invention are: By precisely adjusting the motor speed through a feedback controller, uniform winding and unwinding of the wire rope is achieved. The encoder in the feedback controller can detect the rotational speed of the rollers in real time, thereby accurately controlling the winding and unwinding speed of the wire rope. When a change in the winding and unwinding speed of the wire rope is detected, the feedback controller quickly adjusts the motor speed to ensure that the wire rope always maintains a uniform speed.
[0037] The motor and gearbox are secured with metal brackets, which are then mounted on the main housing. This structure provides a solid and stable support foundation for the entire wire rope control system. The high strength and stability of the metal brackets effectively resist various mechanical stresses and vibrations generated during the operation of the clothes dryer, ensuring that the motor and gearbox maintain a stable position and operating condition during long-term operation. Attached Figure Description
[0039] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as...
[0040] This is intended to limit the scope of the present invention. Furthermore, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the described object and may contain exaggerated depictions, and are not necessarily drawn to scale.
[0041] Figure 1 This is a schematic diagram of the overall structure of the clothes drying rack in this utility model;
[0042] Figure 2 Structural disassembly diagram of the wire rope control system Figure 1 ;
[0043] Figure 3 Schematic diagram of the overall structure of the wire rope control system Figure 1 ;
[0044] Figure 4 Schematic diagram of the overall structure of the wire rope control system Figure 2 ;
[0045] Figure 5 Schematic diagram of the structural disassembly of the wire rope control system Figure 2 ;
[0046] Figure 6 Schematic diagram of the structural disassembly of the wire rope control system Figure 3 ;
[0047] Figure 7 A schematic diagram of the assembly of the trigger turntable assembly and gear assembly;
[0048] Figure 8 This is a schematic diagram of the assembly of the trigger turntable assembly and the gearbox;
[0049] Figure 9 This is a structural disassembly diagram of the stranded wire reel in this embodiment. Figure 1 ;
[0050] Figure 10 This is a structural disassembly diagram of the stranded wire reel in this embodiment. Figure 2 . Detailed Implementation
[0051] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.
[0052] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it will not be further defined and explained in subsequent figures.
[0053] like Figure 1 The diagram shows the overall structure of the clothes drying rack of this utility model. The main unit is equipped with a steel wire rope control system 100 for the clothes drying rack, which consists of multiple key components that work together to achieve the smooth raising and lowering of the drying rod.
[0054] Among them, such as Figure 2 and Figure 3 As shown, the metal bracket 10 serves as the basic support structure for the entire system, firmly fixed to the main housing 101, providing a stable mounting platform for other components. The motor 20 and gearbox 30 are tightly mounted on the metal bracket 10, and the output shaft 21 of the motor 20 is precisely connected to the input end of the gearbox 30, ensuring efficient and stable power transmission.
[0055] The output end of the gearbox 30 is equipped with a rotating shaft 31, which plays a crucial role in transmitting power to the strand reel 40 and driving it to rotate, thereby realizing the winding and unwinding operation of the wire rope.
[0056] Furthermore, the cable reel 40, composed of a top plate 41, a middle plate 42, and a bottom plate 43, cleverly combines to form two parallel, radially extending winding grooves 44. The steel wire rope connecting the left end of the drying rod is coiled within one of these winding grooves 44.
[0057] The steel wire rope connecting the right end of the drying rod is coiled in another winding groove 44. With this technique, the winding diameter of the entire stranded coil 40 gradually increases during the winding process of the steel wire rope s, thus reducing the overall thickness of the stranded coil 40. This technique not only reduces the overall weight of the clothes drying machine 100 but also reduces the size of the main unit, making it more in line with the requirements of modern smart homes for slimness and lightness. The variable diameter stranding method, by changing the gradually increasing winding radius during the winding process, significantly reduces the thickness of the stranded coil 40 for the same length of steel wire rope s, thereby providing a better physical basis for subsequent feedback control.
[0058] A rotating shaft 31 is precisely passed through and fixed in the middle position of the top plate 41, the middle plate 42 and the bottom plate 43, so that the stranding disc 40 can rotate stably and evenly, providing a reliable mechanical guarantee for the winding and unwinding of the wire rope s.
[0059] The feedback controller 50 is the key component of the entire control system. It consists of a roller 51 with a groove 511 and an encoder 52. The wire rope s led from the stranding reel 40 first passes through the groove 511 of the roller 51. When the wire rope s is wound up or unwound, it drives the roller 51 to rotate. The encoder 52 accurately detects the rotation speed of the roller 51 and feeds this speed information back to the feedback controller 50 in real time.
[0060] The feedback controller 50 adjusts the speed of the motor 20 accordingly based on the received speed information. When the drying rack rises and the wire rope is wound, the feedback controller 50 gradually increases the speed of the motor 20 to compensate for the increased length of each turn of the wound wire rope caused by the increased diameter of the strand reel, ensuring that the winding and unwinding speed of the wire rope remains uniform. When the drying rack descends and the wire rope is released, the feedback controller 50 gradually decreases the speed of the motor 20 to adapt to the decreased length of each turn of released wire rope caused by the decreased diameter of the strand reel, thus achieving uniform release of the wire rope as well.
[0061] Through this intelligent feedback control mechanism, the entire wire rope control system 100 can precisely control the speed of wire rope winding and unwinding, making the lifting and lowering process of the clothes drying rack smooth, safe and reliable, greatly improving the performance and user experience of the clothes drying rack.
[0062] More specifically, such as Figure 3 and Figure 4 As shown, a rotating arm 11 is mounted on a metal bracket 10, with the first end 111 of the rotating arm 11 axially connected to the metal bracket 10; a feedback controller 50 is mounted on the second end 112 of the rotating arm 11; a tension spring 12 is provided between the second end 112 of the rotating arm 11 and the metal bracket 10; an up switch 13 is provided on the metal bracket 10, and the up switch 13 is located on the rotation path of the rotating arm 11.
[0063] When the drying rack encounters resistance during its descent, causing the wire rope s to lose its preset tension, the tension spring 12 will quickly activate. It will pull the rotating arm 11, causing it to rotate around its axis, thereby triggering the lifting switch 13 mounted on the metal bracket 10. The position of the lifting switch 13 is carefully designed to be located precisely on the rotation path of the rotating arm 11, ensuring that the rotating arm 11 can accurately trigger the switch during rotation.
[0064] When the lifting switch 13 is triggered, it immediately sends a signal to shut off the motor 20, thereby stopping the clothes drying rack from lowering. This mechanism provides an important guarantee for the safe operation of the clothes drying rack.
[0065] The cable reel 40 is located at position 001 on the first side of the gearbox 30; a lifting limit mechanism 102 is located at position 002 on the second side of the gearbox 30; positions 001 and 002 are opposite sides of the gearbox 30. The cable reel 40 and the lifting limit mechanism 102 are located on opposite sides of the gearbox 30, a layout that clearly defines their functional zones. The cable reel 40 focuses on the winding and unwinding of the wire rope, while the lifting limit mechanism 102 focuses on controlling the travel of the clothes drying rod. They do not interfere with each other, yet work closely together to ensure the normal operation of the clothes drying rack.
[0066] In addition, such as Figures 5 to 7 As shown, the gearbox 30 is the core transmission component in the clothes drying rack wire rope control system. It consists of a housing 31 and a first gear 01, a second gear 02, and a third gear 03 inside the housing.
[0067] In this system, the first gear 01 meshes tightly with the output shaft 21 of the motor 20, ensuring that the motor's power is efficiently transmitted to the gearbox. The second gear 02 is coaxially fixed with the first gear 01, and the two rotate together to further transmit power. Next, the second gear 02 meshes with the third gear 03 to convert and amplify the power. Finally, the rotating shaft 31 is coaxially fixed with the third gear 03, precisely outputting the power transmitted and adjusted by the gearbox to the strand reel 40, driving it to rotate, thereby realizing the winding and unwinding operation of the wire rope.
[0068] This gear transmission structure not only improves the efficiency of power transmission, but also optimizes the adjustment of motor speed and torque through the cooperation of multi-stage gears, providing a strong guarantee for the smooth operation of the clothes drying rack.
[0069] Additionally, it should be noted that the lifting limit mechanism 102 includes a lower limit micro switch r1, an upper limit micro switch r2, and a trigger turntable assembly 103, all installed on the outside of the gearbox 30 housing cover 32.
[0070] The lower limit micro switch r1 and the upper limit micro switch r2 are both installed on the outside of the upper cover 32 of the gearbox 30, and are used to control the lowering and raising limit positions of the drying rod 103, respectively. The trigger turntable assembly 103 is also located on the outside of the upper cover 32, and consists of a first rotating disk b1 and a second rotating disk b2, with the second rotating disk b2 located above the first rotating disk b1.
[0071] The outer periphery of the first rotating disk b1 is provided with a first actuating element b11, and the outer periphery of the second rotating disk b2 is provided with a second actuating element b21. These two actuating elements cooperate with the lower limit micro switch r1 and the upper limit micro switch r2, respectively, to realize the stroke control of the drying rod 103. The stranding disc 40 is driven by the first rotating disk b1 through the first gear set 60, while the second rotating disk b2 is driven by the first rotating disk b1 through the second gear set 70. This gear set ensures that the rotation of the discs is closely linked to the rotation of the stranding disc 40, thus ensuring the accuracy of stroke control.
[0072] During the descent of the drying rod 103, the stranding disc 40 drives the first rotating disc b1 to rotate in the first direction via the first gear set 60. When the first rotating disc b1 rotates to a certain extent, the first actuating element b11 contacts the lower limit micro switch.
[0073] Turning off r1 triggers the switch, stopping the motor 20 and halting the descent of the drying rod 103, thus preventing excessive descent that could damage the equipment or cause a safety accident.
[0074] Conversely, during the ascent of the drying rod 103, the rotation of the stranded reel 40, through the transmission of the first gear set 60 and the second gear set 70, drives the second rotating disk b2 to rotate in the second direction. When the second rotating disk b2 rotates to a certain extent, the second actuating element b21 contacts the upper limit micro switch r2, triggering the switch to stop the motor 20, thereby stopping the ascent of the drying rod 103 and preventing the drying rod 103 from rising excessively and damaging the equipment or causing a safety accident.
[0075] In summary, this lifting and limiting mechanism 102 achieves precise control over the lifting stroke of the drying rod 103 through the combination of mechanical transmission and micro switch.
[0076] More specifically, such as Figure 7 As shown, the first gear set 60 includes a top tooth 61 fixed on the third gear 03, a compound tooth 62 mounted on the upper cover 32, and a first inner ring tooth 63 inside the first rotating disk b1.
[0077] The top tooth 61 passes through the upper cover 32, and the composite tooth 62 includes an integral upper tooth portion 621 and a lower tooth portion 622; the top tooth 61 meshes with the lower tooth portion 622, and the upper tooth portion 621 meshes with the first inner ring tooth 63.
[0078] like Figure 7 As shown, the second gear set 70 includes a transmission tooth 71 eccentrically mounted on the first rotating disk b1 and a second inner ring tooth 72 mounted on the second rotating disk b2. The transmission tooth 71 includes a lower insertion post 711 and an upper transmission tooth portion 712. The first rotating disk b1 has an insertion hole b12, and the insertion post 711 is rotatably located within the insertion hole b12. The transmission tooth portion 712 meshes with the second inner ring tooth 72. The eccentric design of the transmission tooth 71 allows the rotation of the second rotating disk b2 to flexibly coordinate with the rotation of the first rotating disk b1.
[0079] The second rotating disk b2 has a through hole b22 at its center. The second inner annular tooth 72 is located on the lower outer periphery of the through hole. A step b23 is located on the upper outer periphery of the through hole b22, and a cover plate 80 covers the step b23. An adjusting part t extending from the cover plate is located above the transmission tooth part 712, and an adjusting hole t0 is provided on the adjusting part t. The adjusting part t and the adjusting hole t0 provide a fine-tuning function, which can be adjusted according to the actual use to ensure the accuracy and stability of the transmission.
[0080] Moreover, the cover plate 80 is fixed to the second rotating disk b2 by the step b23, which not only protects the internal structure, but also enhances the stability and integrity of the entire limiting mechanism.
[0081] Preferably, the first rotating disk b1, the second rotating disk b2, and the cover plate 80 are fixed to the upper cover 32 by a screw assembly. This ensures that the components do not loosen or shift during operation.
[0082] Preferably, such as Figure 9 and Figure 10 As shown, the first concave-convex positioning structure e1 between the top plate 41 and the middle plate 42, and the second concave-convex positioning structure e2 between the bottom plate 43 and the middle plate 42, ensure precise alignment of the three components during assembly. This structural design prevents displacement or loosening of components during operation, thereby improving the stability of the stranded coil 40.
[0083] Overall stability. The top plate 41, middle plate 42 and bottom plate 43 are connected and fixed by screw t2, which further enhances the structural strength of the stranded coil 40.
[0084] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Similarly, "first" and "second" are only for the purpose of facilitating understanding and have no other directional meaning, and should not be considered as limitations on this utility model.
[0085] This invention introduces the wire rope control system for uniformly raising and lowering a drying rack provided by this utility model. Specific examples are used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from its principle, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A wire rope control system for a clothes drying rack, characterized in that: It includes a metal bracket, a motor, a gearbox, a stranded wire reel, and a feedback controller; the motor and gearbox are fixed on the metal bracket, which is fixed on the main unit housing; The output shaft of the motor is connected to the input end of the gearbox, and a rotating shaft is provided at the output end of the gearbox; The stranded coil includes a top plate, a middle plate, and a bottom plate, forming two parallel, radially extending winding grooves. The rotating shaft passes through and is fixed at the middle position of the top plate, the middle plate and the bottom plate; A feedback controller includes a roller with a groove and an encoder, wherein a steel wire rope led from a stranded reel passes through the groove of the roller to drive the roller to rotate, and the encoder detects the rotational speed of the roller. The encoder feeds back the roller rotation speed to the controller, which in turn controls the motor speed to adjust accordingly so that the wire rope can be wound and unwound at a uniform speed.
2. The wire rope control system for the clothes drying rack according to claim 1, characterized in that: A rotating arm is mounted on the metal bracket, with the first end of the rotating arm axially connected to the metal bracket; the feedback controller is mounted on the second end of the rotating arm; a tension spring is provided between the second end of the rotating arm and the metal bracket; an up switch is provided on the metal bracket, and the up switch is located on the rotation path of the rotating arm.
3. The wire rope control system for the clothes drying rack according to claim 1, characterized in that: The stranded wire reel is located on the first side of the gearbox; The gearbox is provided with a lifting limit mechanism on the second side; the first side and the second side are opposite sides of the gearbox.
4. The wire rope control system for the clothes drying rack according to claim 1, characterized in that: The gearbox includes a housing and a first gear, a second gear and a third gear of the housing; The first gear meshes with the output shaft of the motor, and the second gear is fixed together with the first gear on the same axis. The second gear meshes with the third gear; the rotating shaft is fixed coaxially with the third gear.
5. The wire rope control system for the clothes drying rack according to claim 3, characterized in that: The lifting and limiting mechanism includes a lower limit micro switch, an upper limit micro switch, and a trigger turntable assembly installed on the outside of the gearbox housing cover. The trigger turntable assembly includes a first turntable and a second turntable located on the outside of the upper cover, with the second turntable disposed on the first turntable; The first rotating disk has a first actuating element on its outer periphery, and the second rotating disk has a second actuating element on its outer periphery; the stranded wire reel is driven by the first rotating disk through a first gear set; the second rotating disk is driven by the first rotating disk through a second gear set. When the first rotating disk rotates in the first direction, the first actuating element touches the lower limit micro switch, causing the drying rod to stop descending; when the second rotating disk rotates in the second direction, the second actuating element touches the upper limit micro switch, causing the drying rod to stop ascending.
6. The wire rope control system for the clothes drying rack according to claim 5, characterized in that: The first gear set includes a top tooth fixed on the third gear, a compound tooth mounted on the upper cover, and a first inner ring tooth inside the first rotating disk; The top tooth passes through the upper cover, and the composite tooth includes an integral upper tooth portion and a lower tooth portion; the top tooth meshes with the lower tooth portion, and the upper tooth portion meshes with the first inner annular tooth. The second gear set includes a transmission tooth eccentrically disposed on the first rotating disk and a second inner annular tooth on the second rotating disk. The transmission tooth includes a lower insert post and an upper transmission tooth portion. The first rotating disk is provided with a socket, and the plug is rotatably located in the socket; The transmission teeth mesh with the second inner annular teeth.
7. The wire rope control system for the clothes drying rack according to claim 6, characterized in that: The second rotating disk has a through hole at its center, the second inner annular tooth is located on the lower part of the outer periphery of the through hole, and a step is provided on the upper part of the outer periphery of the through hole, with a cover plate covering the step; An adjustment section with an extension cover plate is provided above the transmission gear, and the adjustment section has an adjustment hole.
8. The wire rope control system for the clothes drying rack according to claim 2, characterized in that: When the drying rack encounters resistance during descent, causing the wire rope to lose its preset tension, the tension spring drives the rotating arm to rotate and triggers the lifting switch to shut off the motor.
9. The wire rope control system for the clothes drying rack according to claim 1, characterized in that: As the drying rack rises and the wire rope winds, the feedback controller gradually increases the speed of the motor. As the drying rack descends and the wire rope is released, the feedback controller controls the motor speed to gradually decrease. This ensures that the steel wire rope is raised and lowered at a uniform speed.
10. The wire rope control system for the clothes drying rack according to claim 1, characterized in that: A first concave-convex positioning structure is provided between the top plate and the middle plate, and a second concave-convex positioning structure is provided between the bottom plate and the middle plate. The top plate, middle plate, and bottom plate are connected and fixed together by screws.
Citation Information
Patent Citations
A take -up reel device for airing machine
CN207046742U