Clothes drying driving mechanism with adjustable braking force

Abstract

The utility model provides a clothes airing driving mechanism with adjustable braking force. The clothes airing driving mechanism comprises a driving assembly, a rope winding assembly and a tightness adjusting assembly. The rope winding assembly comprises a first transmission part, a first rope winding part, a second transmission part and a second rope winding part which are rotationally arranged on the shell part, the first rope winding part is arranged on the first transmission part, the second rope winding part is arranged on the second transmission part, the first transmission part is in transmission connection with the driving part, and the second transmission part is in transmission connection with the first transmission part; one end of the tightness adjusting assembly is rotationally arranged on the end face of the shell part, and the other end of the tightness adjusting assembly penetrates through the second transmission part and the second rope winding part and then is connected to the bottom face of the shell part. The tightness adjusting assembly is rotated to drive the shell part to abut against and press the second transmission part. The shell part is pressed on the second transmission part by rotating the tightness adjusting assembly, the friction force between the second transmission part and the shell part is increased, and therefore the driving resistance of the driving part is increased so as to increase the braking force, and the safety and the lifting stroke control precision of the clothes hanger are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of smart home, specifically, relates to a kind of adjustable brake force clothes airing drive mechanism. BACKGROUND

[0002] With the development of science and technology and the progress of technology, more and more intelligent furniture appears and popularizes in family life, for example, automatic clothes airing machine. The automatic clothes airing machine is usually composed of a clothes airing rack and a lifting control mechanism. The lifting control mechanism is connected with the clothes airing rack through a steel wire rope and controls the lifting of the clothes airing rack by triggering an electronic limit switch to control the motor to wind or unwind the steel wire rope.

[0003] Since the clothes airing rack usually hangs clothes that are not dry, when the motor winds or unwinds the steel wire rope to control the lifting of the clothes airing rack, the gravity of the clothes will be applied to the clothes airing rack. In particular, when the lifting of the clothes airing rack is suddenly stopped, the clothes airing rack needs greater brake force under the action of inertia to stop accurately and stably. However, the output motor of the automatic clothes airing machine is usually a motor with constant output power, and the output torque of the motor is usually constant. Therefore, when the clothes airing rack needs to be stopped urgently, the clothes airing rack will continue to move due to inertia, and the control accuracy and safety of the motor driving are not guaranteed, which affects the user experience. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a clothes airing drive mechanism with adjustable brake force.

[0005] The clothes airing drive mechanism with adjustable brake force disclosed in the present application comprises a driving assembly, a rope winding assembly and a tightness adjusting assembly. The driving assembly comprises a housing and a driving member arranged on the housing. The rope winding assembly comprises a first transmission member, a first rope winding member, a second transmission member and a second rope winding member rotatably arranged on the housing. The first rope winding member is arranged on the first transmission member, and the second rope winding member is arranged on the second transmission member. The first transmission member is in transmission connection with the driving member, and the second transmission member is in transmission connection with the first transmission member. One end of the tightness adjusting assembly is rotatably arranged on the end face of the housing, and the other end of the tightness adjusting assembly is connected to the bottom face of the housing after passing through the second transmission member and the second rope winding member. Rotating the tightness adjusting assembly drives the housing to abut and press against the second transmission member.

[0006] Preferably, the tightness adjusting assembly comprises a tightness screw and a tightness nut. The tightness nut is arranged in the housing, one end of the tightness screw is rotatably arranged on the end face of the housing, and the other end of the tightness screw is in threaded connection with the tightness nut after passing through the housing, the second transmission member and the second rope winding member. Rotating the tightness screw drives the housing to abut and press against the second transmission member.

[0007] Preferably, the clothes drying drive mechanism with adjustable braking force further includes an electronic limit component, which includes a magnetic component and a magnetic sensing component. The magnetic component is located at the drive end of the drive component, and the magnetic sensing component is located on the housing component and faces the magnetic component. The magnetic sensing component is electrically connected to the controller of the drive component.

[0008] Preferably, the clothes drying drive mechanism with adjustable braking force further includes a mechanical limit component, which includes a rotating component, an upper limit component, a lower limit component, and a limit sensor. The rotating component is connected to the first transmission component. The upper limit component and the lower limit component are respectively spaced apart on the rotating component. The limit sensor is located on the housing component and is located on the rotation trajectory of the upper limit component and the lower limit component. The limit sensor is electrically connected to the controller of the drive component.

[0009] Preferably, the limit sensor includes an upper limit switch and a lower limit switch, which are respectively spaced apart on the housing component. The upper limit switch is located on the rotation trajectory of the upper limit component, and the lower limit switch is located on the rotation trajectory of the lower limit component. Both the upper limit switch and the lower limit switch are electrically connected to the controller.

[0010] Preferably, the rotating component includes an upper rotating disk and a lower rotating disk. The lower rotating disk is connected to a first transmission component that is away from the tension adjustment component. The upper rotating disk is disposed on the lower rotating disk. An upper limit component and a lower limit component are respectively disposed on the upper rotating disk and the lower rotating disk.

[0011] Preferably, the mechanical limiting assembly further includes a limiting adjustment member. The upper rotating disk and the lower rotating disk can rotate relative to each other. One end of the limiting adjustment member is rotatably disposed on the lower rotating disk, and the other end of the limiting adjustment member is engaged with the upper rotating disk. When the limiting adjustment member is rotated, the limiting adjustment member drives the upper rotating disk to rotate relative to the lower rotating disk, so that the upper limiting member moves closer to or away from the lower limiting member.

[0012] Preferably, the driving component includes a driving body, a worm gear, and a controller. The driving body is located in the housing component, one end of the worm gear is connected to the driving body, a magnetic component is located at the other end of the worm gear, the worm gear is connected to the first transmission component for transmission, and the controller is electrically connected to the driving body.

[0013] Preferably, the drive component further includes a reduction gear section, which includes a rotating column, a worm gear, and a rotating gear. The rotating column is rotatably mounted on the housing component, and the worm gear and rotating gear are respectively located at both ends of the rotating column. The worm gear meshes with the worm, and the rotating gear meshes with the first transmission component.

[0014] Preferably, the drive component is detachably mounted on the side wall of the housing component.

[0015] The beneficial effects of this application are as follows: rotating the tension adjustment component causes the inner wall of the housing to gradually approach and abut against the second transmission component. Further rotating the tension adjustment component causes the inner wall of the housing to press against the second transmission component, thereby increasing the friction between the second transmission component and the housing. This friction is transmitted to the drive component through the second and first transmission components, thereby increasing the driving resistance of the drive component. This friction and the driving resistance together form a braking force to prevent the clothes rack from moving further, greatly enhancing safety and the accuracy of the clothes rack lifting stroke control. At the same time, by rotating the tension adjustment component in the opposite direction, the friction between the second transmission component and the housing can be reduced, thereby reducing the braking force, which is suitable for different braking force application scenarios.

[0016] Furthermore, this embodiment also features a combination of electronic and mechanical limit components, which further improves the accuracy and stability of the automatic clothes drying machine's stroke and prevents limit deviation. Moreover, the electronic limit component allows for the setting of more limit points between the physical upper and lower limit points, enhancing the operability of the automatic clothes drying machine's stroke. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the adjustable braking force clothes drying drive mechanism in the embodiment;

[0019] Figure 2 This is another structural schematic diagram of the clothes drying drive mechanism with adjustable braking force in the embodiment;

[0020] Figure 3 This is a schematic diagram of the internal structure of the clothes drying drive mechanism with adjustable braking force in the embodiment.

[0021] Figure 4 This is a schematic diagram of the upper rotating disk in the embodiment;

[0022] Figure 5 This is a schematic diagram of the structure of the lower rotating disk in the embodiment;

[0023] Figure 6 This is another structural schematic diagram of the upper and lower rotating disk in the embodiment;

[0024] Figure 7 This is a schematic diagram of the structure of the first transmission component and the first rope winding component in the embodiment;

[0025] Figure 8 This is a schematic diagram of the structure of the second transmission component and the second coil of rope in the embodiment.

[0026] Figure label:

[0027] 1. Drive assembly; 11. Housing component; 111. Bottom shell; 112. Top shell; 12. Drive component; 121. Drive body; 122. Worm gear; 123. Reduction gear section; 1231. Rotating column; 1232. Worm wheel; 1233. Rotating gear; 2. Rope winding assembly; 21. First transmission component; 211. Transmission body; 212. Gear ring; 213. Transmission gear column; 214. Reduction gear column; 22. First rope winding component; 23. Second transmission component; 231. Second transmission body; 23 2. Second gear ring; 24. Second rope coil; 3. Tension adjustment assembly; 31. Tension screw; 32. Tension nut; 4. Electronic limit assembly; 41. Magnetic component; 42. Magnetic sensing component; 5. Mechanical limit assembly; 51. Rotating component; 511. Upper rotating disk; 512. Lower rotating disk; 52. Upper limit component; 53. Lower limit component; 54. Limit sensing component; 541. Upper limit switch; 542. Lower limit switch; 55. Limit adjustment component; 551. Adjusting column; 552. Adjusting gear. Detailed Implementation

[0028] The following drawings disclose several embodiments of this application. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this application. That is, in some embodiments of this application, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0029] It should be noted that all directional indications in the embodiments of this application, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit this application. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0031] To further understand the content, features, and effects of this application, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0032] Reference Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the adjustable braking force clothes drying drive mechanism in the embodiment. Figure 2 This is another structural schematic diagram of the adjustable braking force clothes drying drive mechanism in this embodiment. The adjustable braking force clothes drying drive mechanism in this embodiment includes a drive assembly 1, a rope winding assembly 2, and a tension adjustment assembly 3. The drive assembly 1 includes a housing 11 and a drive member 12 disposed on the housing 11. The rope winding assembly 2 includes a first transmission member 21, a first rope winding member 22, a second transmission member 23, and a second rope winding member 24, which are respectively rotatably disposed on the housing 11. The first rope winding member 22 is disposed on the first transmission member 21, and the second rope winding member 24 is disposed on the second transmission member 23. The first transmission member 21 is drively connected to the drive member 12, and the second transmission member 23 is drively connected to the first transmission member 21. One end of the tension adjustment assembly 3 is rotatably disposed on the end face of the housing 11, and the other end of the tension adjustment assembly 3 passes through the second transmission member 23 and the second rope winding member 24 and is connected to the bottom surface of the housing 11. Rotating the tension adjustment assembly 3 causes the housing 11 to abut against and press against the second transmission member 23.

[0033] The adjustable braking force clothes drying drive mechanism in this embodiment is applied to an automatic clothes drying machine. The first rope component 22 and the second rope component 24 are wound with clothes drying steel cables. The drive component 12 drives the first transmission component 21 to rotate. The rotation of the first transmission component 21 drives the second transmission component 23 to rotate. The rotation of the first transmission component 21 and the second transmission component 23 can respectively drive the first rope component 22 and the second rope component 24 to rotate, thereby winding and unwinding the clothes drying steel cable to pull the clothes drying rack to rise and fall. Rotating the tension adjustment component 3 causes the inner wall of the housing 11 to gradually approach and abut against the second transmission component 23. Further rotation of the tension adjustment component 3 causes the inner wall of the housing 11 to press against the second transmission component 23, thereby increasing the friction between the second transmission component 23 and the housing 11. This friction is transmitted to the drive component 12 through the second transmission component 23 and the first transmission component 21, thereby increasing the driving resistance of the drive component 12. This friction and the driving resistance together form a braking force to prevent the clothes rack from moving further, greatly enhancing safety and the accuracy of the clothes rack lifting stroke control. At the same time, by rotating the tension adjustment component 3 in the opposite direction, the friction between the second transmission component 23 and the housing 11 can be reduced, thereby reducing the braking force, which is suitable for different braking force application scenarios.

[0034] Reference Figure 3 , Figure 3This is a schematic diagram of the internal structure of the adjustable braking force clothes drying drive mechanism in the embodiment. Preferably, the adjustable braking force clothes drying drive mechanism further includes an electronic limit component 4. The electronic limit component 4 includes a magnetic element 41 and a magnetic sensing element 42. The magnetic element 41 is located at the drive end of the drive element 12, and the magnetic sensing element 42 is located on the housing element 11 and faces the magnetic element 41. The magnetic sensing element 42 is electrically connected to the controller of the drive element 12. In specific applications, when the drive element 12 drives the transmission element 21 to rotate, the magnetic element 41 located at the drive end of the drive element 12 rotates accordingly. The magnetic sensing element 42 senses the number of rotations of the magnetic element 41 and controls the drive element 12 to start and stop through the controller to achieve electronic limit. Specifically, the magnetic element 41 is a magnet, and the magnetic sensing element 42 is a Hall plate. It can be understood that when the drive element 12 drives the first transmission element 21 to rotate, the magnetic element 41 also rotates accordingly. The magnetic sensing element 42 senses the number of rotations of the magnetic element 41 and controls the switch of the drive element 12 to achieve electronic limit. The housing component 11 is the machine housing. The first rope winding component 22 and the second rope winding component 24 are both rope winders.

[0035] Rereference Figure 3 Preferably, the clothes drying drive mechanism with adjustable braking force further includes a mechanical limiting component 5. The mechanical limiting component 5 includes a rotating member 51, an upper limiting member 52, a lower limiting member 53, and a limiting sensor 54. The rotating member 51 is connected to the first transmission member 21. The upper limiting member 52 and the lower limiting member 53 are respectively spaced apart from the rotating member 51. The limiting sensor 54 is located on the housing member 11 and is situated on the rotation trajectory of the upper limiting member 52 and the lower limiting member 53. The limiting sensor 54 is electrically connected to the controller of the drive member 12. In specific applications, when the transmission member 21 rotates, it also drives the upper limiting member 52 and the lower limiting member 53 to move synchronously. When the upper limiting member 52 and the lower limiting member 53 move to the limiting sensor 54, the limiting sensor 54 is triggered, causing the limiting sensor 54 to control the drive member 12 to stop driving through the controller, thus achieving mechanical limiting. In other words, by setting up the electronic limit component 4 and the mechanical limit component 5, this embodiment has a dual limit combination of electronic limit and mechanical limit, which further improves the accuracy and stability of the automatic clothes drying machine's stroke and avoids limit deviation. Moreover, the electronic limit component 4 can set more limit points between the two physical upper / lower limit points, improving the operability of the automatic clothes drying machine's stroke.

[0036] Rereference Figures 1-3Preferably, the limit sensor 54 includes an upper limit switch 541 and a lower limit switch 542, which are respectively spaced apart on the housing 11. The upper limit switch 541 is located on the rotation trajectory of the upper limit sensor 52, and the lower limit switch 542 is located on the rotation trajectory of the lower limit sensor 53. Both the upper limit switch 541 and the lower limit switch 542 are electrically connected to the controller. In specific applications, both the upper limit switch 541 and the lower limit switch 542 are limit switches. It can be understood that when the upper limit sensor 52 rotates and lightly touches the upper limit switch 541, the drive unit 12 stops driving, the rope reel stops rotating to reel in the rope, that is, the automatic clothes dryer stops rising; when the drive unit 12 reverses driving, when the lower limit sensor 53 rotates and lightly touches the lower limit switch 542, the drive unit 12 stops driving, the rope reel stops rotating to unload the rope, that is, the automatic clothes dryer stops descending. This allows for mechanical limits on the maximum rising height and minimum falling height of the automatic clothes drying rack, meaning that the upper and lower limit points can be mechanically limited physically.

[0037] Reference Figures 4-6 , Figure 4 This is a schematic diagram of the upper rotating disk in the embodiment. Figure 5 This is a schematic diagram of the structure of the upper and lower rotating disk in the embodiment. Figure 6As shown in another structural diagram of the upper and lower rotating disks in the embodiment, preferably, the rotating component 51 includes an upper rotating disk 511 and a lower rotating disk 512. The lower rotating disk 512 is connected to the transmission component 21 located away from the tension adjustment component 3. The upper rotating disk 511 is disposed on the lower rotating disk 512, and the upper limit component 52 and the lower limit component 53 are respectively disposed on the upper rotating disk 511 and the lower rotating disk 512. In specific applications, the upper limit component 52 is an upper limit contact rod, which is disposed at the edge of the upper rotating disk 511, and the lower limit component 53 is a lower limit contact rod, which is disposed at the edge of the lower rotating disk 512. The upper limit component 52 and the lower limit component 53 are spaced apart from each other and staggered in position. Furthermore, the mechanical limiting component 5 also includes a limiting adjustment component 55. The upper rotating disk 511 and the lower rotating disk 512 can rotate relative to each other. One end of the limiting adjustment component 55 is rotatably disposed on the lower rotating disk 512, and the other end of the limiting adjustment component 55 is engaged with the upper rotating disk 511. Rotating the limit adjustment component 55 causes the upper rotating disk 511 to rotate relative to the lower rotating disk 512, causing the upper limit component 52 to move closer to or further away from the lower limit component 53. In specific applications, the limit adjustment component 55 includes an adjustment column 551 and an adjustment gear 552. One end of the adjustment column 551 is rotatably mounted on the lower rotating disk 512, and the adjustment gear 552 is located at the other end of the adjustment column 551. The end face of the adjustment column 551 has a cross groove to facilitate twisting and rotation using tools. A gear ring is provided inside the upper rotating disk 511, and the upper rotating disk 511 meshes with the adjustment gear 552 through the gear ring. It can be understood that rotating the adjustment column 551 drives the adjustment gear 552 to rotate, thus adjusting the upper rotating disk 511. 2. The rotation causes the upper rotating disk 511 to rotate relative to the lower rotating disk 512. At this time, the upper limit component 52 can move closer to or further away from the lower limit component 53, which can adjust the offset distance between the upper limit component 52 and the lower limit component 53. When the upper limit component 52 touches the limit sensor 54, the automatic clothes drying machine stops rising. By adjusting the offset distance between the upper limit component 52 and the lower limit component 53, it is equivalent to adjusting the angle of the upper limit component 52, thereby meeting the different needs of users for the maximum rising height of the automatic clothes drying machine.

[0038] Rereference Figure 3Preferably, the driving component 12 includes a driving body 121, a worm gear 122, and a controller. The driving body 121 is disposed on the housing 11. One end of the worm gear 122 is connected to the driving body 121, and a magnetic component 41 is disposed on the other end of the worm gear 122. The worm gear 122 is drive-connected to the first transmission component 21, and the controller is electrically connected to the driving body 121. In specific applications, the driving body 121 is a drive motor used to transmit rotational power to the worm gear 122, and the magnetic component 41 is disposed on the end of the worm gear 122 away from the driving body 121. Specifically, the controller is a motor control board. The driving body 121 is detachably installed on one side wall of the housing 11, and the detachable installation method is screw mounting. The end of the worm gear 122 away from the driving body 121 extends into the housing 11 and is drive-connected to the first transmission component 21. This facilitates the installation, disassembly, and maintenance of the driving body 121.

[0039] Rereference Figure 3 Preferably, the drive component 12 further includes a reduction gear section 123, which includes a rotating column 1231, a worm gear 1232, and a rotating gear 1233. The rotating column 1231 is rotatably mounted on the housing component 11. The worm gear 1232 and the rotating gear 1233 are respectively located at both ends of the rotating column 1231. The worm gear 1232 meshes with the worm 122, and the rotating gear 1233 meshes with the first transmission component 21. The reduction gear section 123 enables speed reduction transmission, thereby reducing the rotational speed of the first transmission component 21 and the first rope winding component 22. This facilitates more precise control of the rope winding mechanism's rotation, improving the accuracy of the clothesline's winding and unwinding, and thus improving the accuracy of the clothes rack's lifting and lowering. Of course, in other embodiments, multi-stage speed reduction can be set according to actual application requirements; this is not limited here.

[0040] Reference Figure 7 , Figure 7The diagram illustrates the structure of the first transmission component and the first rope winding component in the embodiment. Preferably, the first transmission component 21 includes a transmission body 211, a gear ring 212, and a transmission gear column 213. The gear ring 212 is arranged around the side wall of the transmission body 211, the transmission gear column 213 is located on the upper surface of the transmission body 211, and the rope winding component 22 is located on the lower surface of the transmission body 211. The gear ring 212 meshes with the rotating gear 1233, and the transmission gear column 213 is connected to the rotating component 51. In specific applications, the number of teeth on the gear ring 212 is greater than the number of teeth on the rotating gear 1233. That is, when the reduction gear 123 rotates and drives the first transmission component 21 to rotate, the rotational angular velocity of the first transmission component 21 is less than the rotational angular velocity of the reduction gear 123. This further reduces the rotational speed of the first transmission component 21 and the first rope winding component 22, further improving the accuracy of the clothesline cable winding and unwinding, thereby improving the accuracy of the clothes rack lifting and lowering. Specifically, the first transmission component 21 also includes a reduction gear column 214. The bottom of the lower rotating disk 512 is provided with an internal gear ring. The lower rotating disk 512 meshes with the reduction gear column 214 through the internal gear ring. The reduction gear column 214 also meshes with the transmission gear column 213. It can be understood that by setting the reduction gear column 214, the speed can be further reduced, that is, the rotational speed of the lower rotating disk 512 can be further reduced, thereby improving the accuracy and precision of the stroke limit control of the mechanical limit component 5.

[0041] Refer to together Figure 8 , Figure 8The diagram illustrates the structure of the second transmission component and the second rope coil in the embodiment. Preferably, the tension adjustment assembly 3 includes a tension screw 31 and a tension nut 32. The tension nut 32 is disposed inside the housing component 11. One end of the tension screw 31 is rotatably disposed on the end face of the housing component 11, and the other end of the tension screw 31 passes through the housing component 11, the second transmission component 23, and the second rope coil 24 before being screwed onto the tension nut 32. Rotating the tension screw 31 causes the housing component 11 to abut against and press against the second transmission component 23. In practical applications, the housing component 11 includes a bottom shell 111 and a top shell 112. The top shell 112 is detachably mounted on the bottom shell 111, forming a receiving cavity between the bottom shell 111 and the top shell 112. The first transmission component 21, the first rope winding component 22, the second transmission component 23, and the second rope winding component 24 are all rotatably mounted within the receiving cavity. The first rope winding component 22 and the second rope winding component 24 are rope winders, on which clothes drying steel cables are wound. Openings are provided on both sides of the bottom shell 111 for the clothes drying steel cables to pass through. A tightening nut 32 is located on the bottom shell 111. One end of the tightening screw 31, i.e., the nut end, is located outside the top shell 112. The other end of the tightening screw 31 passes through the top shell 112, the second transmission component 23, and the second rope winding component 24 in sequence before being screwed onto the tightening nut 32. By rotating the tightening nut 32, the faceplate 112 is pressed against the second transmission member 23. This increases the friction between the second transmission member 23 and the faceplate 112. This friction is transmitted through the second transmission member 23 and the first transmission member 21 to the drive member 12, thereby increasing the driving resistance of the drive member 12. This friction and driving resistance together form a braking force to prevent the clothes rack from moving further, greatly enhancing safety and the accuracy of the clothes rack's lifting stroke control. Simultaneously, rotating the tightening nut 32 in the opposite direction reduces the friction between the second transmission member 23 and the housing 11, thus reducing the braking force. In other words, this embodiment can actively adjust the braking force, making it suitable for different braking force application scenarios. Specifically, the second transmission component 23 includes a second transmission body 231 and a second gear ring 232. The second gear ring 232 is arranged around the outer wall of the second transmission body 231. The second rope winding component 24 is arranged in the second transmission body 231. The second gear ring 232 meshes with the gear ring 212. The second transmission body 231 and the second rope winding component 24 are rotatably arranged in the bottom shell 111. The other end of the tightening screw 31 passes through the top shell 112, the second transmission body 231, and the second rope winding component 24 in sequence and is screwed to the tightening nut 32.

[0042] In summary, rotating the tension adjustment component 3 causes the inner wall of the housing 11 to gradually approach and abut against the second transmission component 23. Further rotating the tension adjustment component 3 causes the inner wall of the housing 11 to press against the second transmission component 23, thus increasing the friction between the second transmission component 23 and the housing 11. This friction is transmitted to the drive component 12 through the second transmission component 23 and the first transmission component 21, thereby increasing the driving resistance of the drive component 12. This friction and the driving resistance together form a braking force to prevent the clothes rack from moving further, greatly enhancing safety and the accuracy of the clothes rack lifting stroke control. At the same time, rotating the tension adjustment component 3 in the opposite direction can also reduce the friction between the second transmission component 23 and the housing 11, thereby reducing the braking force, which is suitable for different braking force application scenarios. Furthermore, this embodiment also features a dual limit combination of electronic and mechanical limits through the setting of electronic limit component 4 and mechanical limit component 5, which further improves the accuracy and stability of the automatic clothes drying machine's stroke and avoids limit deviation. Moreover, the electronic limit component 4 can set more limit points between the two physical upper and lower limit points, improving the operability of the automatic clothes drying machine's stroke.

[0043] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A clothes drying driving mechanism with adjustable brake force, characterized in that, The utility model relates to a rope winding device, including: a driving assembly (1) comprising a housing part (11) and a driving part (12) provided on the housing part (11); a rope winding assembly (2) comprising a first transmission part (21), a first rope winding part (22), a second transmission part (23) and a second rope winding part (24) respectively rotatably provided on the housing part (11), the first rope winding part (22) being provided on the first transmission part (21), the second rope winding part (24) being provided on the second transmission part (23), the first transmission part (21) being in driving connection with the driving part (12), and the second transmission part (23) being in driving connection with the first transmission part (21); and a tightness adjusting assembly (3) having one end rotatably provided on an end face of the housing part (11) and the other end connected to a bottom face of the housing part (11) after passing through the second transmission part (23) and the second rope winding part (24), the tightness adjusting assembly (3) being used to drive the housing part (11) to abut and press against the second transmission part (23).

2. The adjustable brake force clothes drying drive mechanism of claim 1, wherein, The tightness adjusting assembly (3) comprises a tightness screw (31) and a tightness nut (32), the tightness nut (32) being provided in the housing part (11), one end of the tightness screw (31) being rotatably provided on an end face of the housing part (11), and the other end of the tightness screw (31) being in threaded connection with the tightness nut (32) after passing through the housing part (11), the second transmission part (23) and the second rope winding part (24), the tightness screw (31) being used to drive the housing part (11) to abut and press against the second transmission part (23).

3. The adjustable brake force clothes drying drive mechanism of claim 1, wherein, The utility model further comprises an electronic limiting assembly (4), the electronic limiting assembly (4) comprising a magnetic part (41) and a magnetic induction part (42), the magnetic part (41) being provided on a driving end of the driving part (12), the magnetic induction part (42) being provided on the housing part (11) and opposite to the magnetic part (41), and the magnetic induction part (42) being electrically connected with a controller of the driving part (12).

4. The adjustable brake force clothes drying drive mechanism of claim 1, wherein, The utility model further comprises a mechanical limiting assembly (5), the mechanical limiting assembly (5) comprising a rotating part (51), an upper limiting part (52), a lower limiting part (53) and a limiting induction part (54), the rotating part (51) being in driving connection with the first transmission part (21), the upper limiting part (52) and the lower limiting part (53) being respectively and separately provided on the rotating part (51), the limiting induction part (54) being provided on the housing part (11), the limiting induction part (54) being located on a rotating track of the upper limiting part (52) and the lower limiting part (53), and the limiting induction part (54) being electrically connected with the controller of the driving part (12).

5. The adjustable brake force clothes drying drive mechanism of claim 4, wherein, The limiting sensing part (54) comprises an upper limiting switch (541) and a lower limiting switch (542), which are respectively arranged at intervals on the shell part (11), and the upper limiting switch (541) is located on the rotating track of the upper limiting part (52), and the lower limiting switch (542) is located on the rotating track of the lower limiting part (53), and the upper limiting switch (541) and the lower limiting switch (542) are electrically connected with the controller.

6. The adjustable brake force clothes drying drive mechanism of claim 5, wherein, The rotating part (51) comprises an upper rotating disc (511) and a lower rotating disc (512), the lower rotating disc (512) is drivingly connected with the first transmission part (21) away from the tightness adjusting assembly (3), the upper rotating disc (511) is arranged on the lower rotating disc (512), and the upper limiting part (52) and the lower limiting part (53) are respectively arranged on the upper rotating disc (511) and the lower rotating disc (512).

7. The adjustable brake force clothes drying drive mechanism of claim 6, wherein, The mechanical limiting assembly (5) further comprises a limiting adjusting part (55), the upper rotating disc (511) and the lower rotating disc (512) are relatively rotatable, one end of the limiting adjusting part (55) is rotatably arranged on the lower rotating disc (512), the other end of the limiting adjusting part (55) is engaged with the upper rotating disc (511), and rotating the limiting adjusting part (55) drives the upper rotating disc (511) to rotate relative to the lower rotating disc (512), so that the upper limiting part (52) is close to or away from the lower limiting part (53).

8. The adjustable brake force clothes drying drive mechanism of claim 3, wherein, The driving part (12) comprises a driving body (121), a worm (122) and a controller, the driving body (121) is arranged on the shell part (11), one end of the worm (122) is connected with the driving body (121), the magnetic part (41) is arranged on the other end of the worm (122), the worm (122) is drivingly connected with the first transmission part (21), and the controller is electrically connected with the driving body (121).

9. The adjustable brake force clothes drying drive mechanism of claim 8, wherein, The driving part (12) further comprises a speed reduction gear part (123), the speed reduction gear part (123) comprises a rotating column (1231), a worm wheel (1232) and a rotating gear (1233), the rotating column (1231) is rotatably arranged on the shell part (11), the worm wheel (1232) and the rotating gear (1233) are respectively arranged at two ends of the rotating column (1231), the worm wheel (1232) is engaged with the worm (122), and the rotating gear (1233) is engaged with the first transmission part (21).

10. The adjustable brake force clothes drying drive mechanism of claim 1, wherein, The driving part (12) is detachably arranged on the side wall of the shell part (11).

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