Double-drive four-wire clothes drying machine

Abstract

A double-drive four-wire clothes airing machine comprises a clothes airing machine shell, a first clothes airing rod, a second clothes airing rod, a first wire rope, a second wire rope, a third wire rope and a fourth wire rope. The clothes airing machine shell is provided with a containing cavity. A driving mechanism and a motor shell body are arranged in the containing cavity. The motor shell body comprises a motor shell base and a motor shell cover. The motor shell cover and the motor shell base are combined to form a motor shell body cavity. The first wire rope and the second wire rope are connected to the first clothes airing rod and are connected to the driving mechanism. The third wire rope and the fourth wire rope are connected to the second clothes airing rod and are connected to the driving mechanism. The driving mechanism is provided with a first driving assembly and a second driving assembly. The first driving assembly and the second driving assembly are located on the motor shell body cavity. The double-drive assembly of the clothes airing machine can effectively reduce the overall size of the driving mechanism, thereby reducing the overall size of the product. The structure layout of the power assembly of the clothes airing machine can be optimized, and the control efficiency of the electric clothes airing machine can be improved.

Description

Technical Field

[0001] This invention relates to the technical field of clothes drying racks, specifically a dual-drive four-line clothes drying rack. Background Technology

[0002] To facilitate hanging and taking down clothes, many clothes racks now come with a lifting function. These clothes racks with lifting function are usually installed at high places such as the ceiling. In order to improve the aesthetics of the clothes racks, hidden and retractable clothes racks have appeared on the market. The clothes rack mainly consists of a body for controlling the lifting, a drive mechanism for driving the clothes rack to lift, and a clothes rack for hanging clothes. In order to cooperate with the hidden design, the body also has a storage cavity to accommodate the clothes rack.

[0003] For example, Chinese patent document CN216274884U discloses a concealed double-pole clothes drying rack, which includes two parallel clothes drying devices and a drive device disposed between the two clothes drying devices. Each clothes drying device includes a housing with fixed pulleys on both sides. A concealed box is located below the housing, with a groove at the bottom of the concealed box to accommodate the clothes drying rods and a through hole at the top of the concealed box for passing through a steel wire rope. This patent controls the two clothes drying devices with one drive device, enabling the two clothes drying devices to have a high degree of synchronization. In use, the two clothes drying devices rise and fall simultaneously, simplifying the operation and better meeting the needs of drying a large number of clothes.

[0004] However, the drive device of this structure uses a single motor to drive the two sets of clothes drying rods to rise and fall simultaneously, and cannot control the rise and fall of only one clothes drying rod. This makes it inconvenient to use. At the same time, the single motor drive has high resistance, which can easily cause damage to parts after long-term operation, resulting in low transmission efficiency and affecting the user experience.

[0005] Therefore, it is necessary to develop a clothes drying machine that can control the lifting and lowering of two sets of clothes drying rods separately and has low driving resistance. Summary of the Invention

[0006] To address the aforementioned technical problem of existing clothes drying racks having high driving resistance and making it inconvenient to control the raising and lowering of the two sets of clothes drying rods separately, the technical solution adopted by this invention is as follows:

[0007] A dual-drive four-line clothes drying rack includes a drying rack housing, a first clothes drying rod, a second clothes drying rod, a first cord, a second cord, a third cord, and a fourth cord. The drying rack housing has a receiving cavity, within which a drive mechanism and a motor housing are housed. The motor housing includes a motor housing base and a motor housing cover, with the motor housing cover and the motor housing base forming the motor housing cavity. The first cord and the second cord are connected to the first clothes drying rod and to the drive mechanism. The third cord and the fourth cord are connected to the second clothes drying rod and to the drive mechanism. The drive mechanism includes a first drive assembly for synchronously extending and retracting the first cord and the second cord, and a second drive assembly for synchronously extending and retracting the third cord and the fourth cord. The first drive assembly and the second drive assembly are located on the motor housing cavity.

[0008] To improve the transmission effect of the drive mechanism, the first drive assembly includes a first drive member, a first and a second rope reel respectively disposed on both sides of the first drive member, a first main drive member disposed on both sides of the first drive member for driving the first rope reel to rotate, and a second main drive member for driving the second rope reel to rotate; the motor housing is provided with a first cable outlet opposite to the first rope reel and a second cable outlet opposite to the second rope reel.

[0009] The first rope reel and the first main drive component are arranged diagonally opposite each other; the second rope reel and the second main drive component are arranged diagonally opposite each other.

[0010] The second drive assembly includes a second drive member, a third and a fourth rope reel respectively disposed on both sides of the second drive member, a third main transmission member disposed on both sides of the second drive member and used to drive the third rope reel to rotate, and a fourth main transmission member used to drive the fourth rope reel to rotate; the motor housing is provided with a third cable outlet opposite to the third rope reel and a fourth cable outlet opposite to the fourth rope reel.

[0011] The third rope reel and the third main drive component are arranged diagonally opposite each other, and the fourth rope reel and the fourth main drive component are arranged diagonally opposite each other.

[0012] To improve the transmission effect of the drive mechanism, the first rope is connected to the first rope reel and extends from the first outlet in a direction parallel to the output shaft of the first drive member, and the second rope is connected to the second rope reel and extends from the second outlet in a direction parallel to the output shaft of the first drive member.

[0013] The third cable is connected to the third reel and extends from the third outlet in a direction parallel to the output shaft of the second drive member. The fourth cable is connected to the fourth reel and extends from the fourth outlet in a direction parallel to the output shaft of the second drive member.

[0014] To improve the transmission effect of the drive mechanism, the first drive member includes a first output shaft connected to the first main drive member, a second output shaft connected to the second main drive member, a first transmission assembly located between the first main drive member and the first rope reel, and a second transmission assembly located between the second main drive member and the second rope reel. The first drive member simultaneously drives the first main drive member and the second main drive member to rotate.

[0015] The first main drive member causes the first rope winding wheel to rotate through the first transmission assembly to release or wind up the rope. When the first rope winding wheel rotates in the winding direction, the force Za exerted by the first transmission assembly on the first main drive member is axial and toward the first drive member.

[0016] The second main drive member causes the second rope reel to rotate via the second transmission assembly to release or reel in the rope. When the second rope reel rotates in the reeling direction, the force Zb exerted by the second transmission assembly on the second main drive member is axial and toward the first drive member.

[0017] In order to improve the transmission effect of the drive mechanism, when the first rope reel is in a stationary state, the tension F1 of the first rope reel causes the stationary force Z1 of the first transmission component acting on the first main transmission component to be axial and toward the first drive component.

[0018] When the second rope reel is in a stationary state, the tension F3 of the second rope on the second rope reel causes the stationary force Z2 of the second transmission component to act on the second main transmission component along the axial direction and toward the other side of the first drive component.

[0019] To improve the transmission effect of the drive mechanism, the first transmission component includes a first transmission wheel A and a first transmission wheel B. The first transmission wheel A meshes with the first main transmission member, and the first transmission wheel B is located between the first transmission wheel A and the first rope winding wheel. The first transmission wheel B meshes with the first transmission wheel A and the first rope winding wheel respectively, and when the first rope winding wheel rotates in the rope winding direction, the horizontal tangent of the rotation direction of the first transmission wheel A faces away from the first drive member.

[0020] To improve the guiding effect of the pulley seat, the accommodating cavity is also provided with a pulley seat corresponding to the number of ropes. The pulley seat includes a pulley seat housing, a pulley groove on the pulley seat housing, and a guide wheel located in the pulley groove and rotatable relative to the pulley groove. The pulley seat housing is also provided with a first opening that communicates with the pulley groove. The rope outlet communicates with the pulley groove and is located on the pulley seat housing. The rope can pass through the guide wheel from the first opening and then be led out from the rope outlet.

[0021] To improve the guiding effect of the pulley seat, the cross-sectional shape of the first opening is trumpet-shaped, the end of the first opening with a larger width dimension is far away from the guide wheel, and the width dimension of the first opening at the end near the guide wheel is smaller than the width dimension of the guide wheel.

[0022] To reduce the unevenness of the clothesline during folding due to rope assembly errors, the first rope is provided with a traction section and a connecting section. The traction section extends from the first opening to the first winding wheel, and the connecting section extends from the rope outlet to the first clothesline. The pulley housing has an initial position and a rope winding compensation position, which are sequentially arranged away from the first opening. When the first clothesline experiences a horizontal deviation during its upward folding process, the traction section can be further wound up under the traction of the first winding wheel, and the guide wheel can be moved from the initial position to the rope winding compensation position, so that the first clothesline remains approximately horizontal.

[0023] To improve the smoothness of the guide wheel's movement, a limiting elongated hole is provided on the side wall of the pulley groove. The guide wheel can move along the limiting elongated hole between the initial position and the rope winding compensation position. The pulley seat housing is provided with a reset component that can reset the guide wheel to the initial position. The reset component includes a tension member and a movable member. The movable member is a connecting shaft rotatably connected to the guide wheel. The connecting shaft passes through the limiting elongated hole and is connected to the tension member. The shaft body of the connecting shaft can slide along the limiting elongated hole between the initial position and the rope winding compensation position. The tension member cooperates with the movable member to pull the guide wheel back to the initial position.

[0024] The beneficial effects of this invention are as follows:

[0025] 1. This invention provides a dual-drive, four-wire drive mechanism. By integrating a first drive assembly and a second drive assembly within a accommodating cavity, most of the components driving the clothes drying rack's lifting and lowering are integrated, facilitating factory installation. Furthermore, the integrated dual-drive assembly effectively reduces the overall size of the drive mechanism, thereby reducing the overall product size. This optimizes the structural layout of the clothes drying rack's powertrain, improves the control efficiency of the electric clothes drying rack, and is beneficial for subsequent intelligent control layout. This invention, by setting two sets of drive mechanisms, each capable of winding or releasing the rope to raise and lower the clothes drying rack, allows each set to wind independently without interference. The control method is simple, enabling simultaneous lifting and lowering of both clothes drying racks or individual lifting and lowering of one rack. The dual-drive assembly can meet the needs of independent lifting and lowering of a single rack in a dual-rack system, thus broadening its applicability.

[0026] 2. This invention, by rationally setting multiple sets of main transmission components, transmission assemblies, and rope winding wheels, limits the direction of the force exerted by the transmission assemblies on each main transmission component during transmission. Under heavy load during rope winding, the force exerted by the transmission assemblies on the main transmission components of each set causes the main transmission components to tend to move in the direction of the driving component, effectively reducing noise and resistance during transmission. This makes the clothes drying rack quieter during operation and also reduces the wear of each set of internal transmission components, thus extending its overall lifespan.

[0027] 3. The pulley seat of the present invention, by adopting a trumpet-shaped first opening, forms a trumpet-shaped wire inlet channel between the two ends of the first opening. The width of the wire inlet channel gradually decreases along the wire inlet direction. The first rope enters through the first opening and then extends to the rope outlet under the guidance of the wire inlet channel. The first opening can provide a large wire inlet range, making it easy for the rope to be inserted into the first opening. The wire inlet channel can also provide a bending space for the rope, thereby expanding the wire inlet angle between the rope and the first opening, eliminating the need for a guide member to guide it. Furthermore, the width of the exit end of the first opening is smaller than the width of the guide wheel, forming a limiting structure at the first opening. When the rope is wound or released, the side wall of the exit end of the first opening can prevent the rope from deviating, keeping the rope on the guide wheel and preventing the rope from running into the gap between the guide wheel and the pulley seat housing. This allows the pulley seat to simultaneously provide guidance and limiting functions for the rope, improving the versatility of the pulley seat's functions.

[0028] 4. When the first clothes drying rod with horizontal deviation rises to the storage slot, the side of the first clothes drying rod with higher height will reach the storage slot first. The connecting section on this side is completely stored in the clothes drying machine casing. The rope winding wheel continues to wind up the traction section and tighten it. At this time, the tightened traction section can drive the guide wheel to move from the initial position to the compensation position, that is, the guide wheel moves towards the first opening, so as to reduce the length of the rope in the clothes drying machine casing, thereby compensating for the winding length of the traction section. This allows the rope winding wheel to continue to wind up the traction section until the ropes on both sides are completely wound up and tightened by their corresponding rope winding wheels, ensuring that the other side of the first clothes drying rod can also be completely inserted into the storage slot. This makes the first clothes drying rod perfectly hidden in the embedded slot, which is convenient to operate and effectively improves the user experience. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a dual-drive four-line clothes drying rack according to the present invention.

[0030] Figure 2 This is a schematic diagram of the storage state of a dual-drive four-line clothes drying rack according to the present invention.

[0031] Figure 3This is an exploded view of the internal structure of a dual-drive four-line clothes drying rack according to the present invention.

[0032] Figure 4 This is a structural diagram of the drive mechanism of the present invention.

[0033] Figure 5 This is a schematic diagram of the motor housing of the present invention.

[0034] Figure 6 This is a schematic diagram showing the rotation of the first driving member, the first main transmission member, the first transmission assembly, and the first rope winding wheel in the rope winding state of the present invention.

[0035] Figure 7 This is a schematic diagram of the first driving member, the first main transmission member, the first transmission assembly, and the first winding wheel of the present invention in a stationary state.

[0036] Figure 8 This is a schematic diagram of the rotation of the drive mechanism of the present invention in the rope winding state.

[0037] Figure 9 This is a schematic diagram of the drive mechanism of the present invention in a stationary state.

[0038] Figure 10 This is a schematic diagram of the internal structure of the drive mechanism of the present invention.

[0039] Figure 11 This is a diagram showing the internal structure of the motor housing of the present invention.

[0040] Figure 12 This is a schematic diagram of the pulley seat of the present invention.

[0041] Figure 13 This is one of the exploded schematic diagrams of the pulley seat of the present invention.

[0042] Figure 14 This is the second exploded view of the pulley seat of the present invention.

[0043] Figure 15 This is the third exploded view of the pulley seat of the present invention.

[0044] Figure 16 for Figure 12 A cross-sectional view along line AA.

[0045] Figure 17 for Figure 12 A cross-sectional view of the tensioning component after assembly with the rope along line AA, in its initial state.

[0046] Figure 18 for Figure 12 A cross-sectional view of the tensioned component after the pulley seat and rope are assembled along line AA, in a tensioned state.

[0047] Figure 19 for Figure 12 A cross-sectional view of the pulley seat tension member along line BB in its initial state.

[0048] Figure 20 for Figure 12 A cross-sectional view of the pulley seat tension member under tension along line BB.

[0049] Figure 21 This is a half-sectional view of the pulley seat. Detailed Implementation

[0050] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0051] like Figures 1 to 21 The illustrated dual-drive four-line clothes drying rack includes a drying rack housing 1, a first clothes drying rod 11a, a second clothes drying rod 11b, a first cord 12a, a second cord 12b, a third cord 12c, and a fourth cord 12d. The drying rack housing 1 has a receiving cavity 14, within which a drive mechanism 2 and a motor housing cover 709 are housed. The motor housing cover 709 and the motor housing base 708 together form the motor housing cavity 711. The first cord 12a and the second cord 12b... 2b is connected to the first clothes drying rod 11a and to the drive mechanism 2. The third rope 12c and the fourth rope 12d are connected to the second clothes drying rod 11b and to the drive mechanism 2. The drive mechanism 2 is provided with a first drive assembly for synchronously winding and unwinding the first rope 12a and the second rope 12b, and a second drive assembly for synchronously winding and unwinding the third rope 12c and the fourth rope 12d. The first drive assembly and the second drive assembly are located on the motor housing cavity 711.

[0052] This invention provides a dual-drive, four-wire drive mechanism. By integrating a first drive assembly and a second drive assembly within a accommodating cavity, most of the components driving the clothes drying rack's lifting and lowering are integrated, facilitating factory installation. Furthermore, the integrated dual-drive assembly effectively reduces the overall size of the drive mechanism, thereby reducing the overall product size. This optimizes the structural layout of the clothes drying rack's powertrain, improves the control efficiency of the electric clothes drying rack, and is beneficial for subsequent intelligent control layout. This invention uses two sets of drive mechanisms, each capable of winding or releasing the rope to raise and lower the clothes drying rack. Each drive mechanism winds the rope independently without interference, and the control method is simple. It can achieve simultaneous lifting and lowering of two clothes drying racks or lifting and lowering of one clothes drying rack individually. The dual-drive assembly can meet the needs of independent lifting and lowering of a single clothes drying rack in a dual-rack configuration, thus broadening its applicability.

[0053] Further, the first driving assembly includes a first driving member 20a, a first rope reel 4a and a second rope reel 4b respectively disposed on both sides of the first driving member 20a, a first main transmission member 21a respectively disposed on both sides of the first driving member 20a for driving the first rope reel 4a to rotate, and a second main transmission member 21b for driving the second rope reel 4b to rotate; the motor housing 7 is provided with a first cable outlet 701a opposite to the first rope reel 4a and a second cable outlet 701b opposite to the second rope reel 4b.

[0054] The first rope winding wheel 4a and the first main drive component 21a are arranged diagonally opposite each other; the second rope winding wheel 4b and the second main drive component 21b are arranged diagonally opposite each other.

[0055] The second drive assembly includes a second drive member 20b, a third rope reel 4c and a fourth rope reel 4d respectively disposed on both sides of the second drive member 20b, a third main transmission member 21c respectively disposed on both sides of the second drive member 20b for driving the third rope reel 4c to rotate, and a fourth main transmission member 21d for driving the fourth rope reel 4d to rotate; the motor housing 7 is provided with a third cable outlet 701c opposite to the third rope reel 4c and a fourth cable outlet 701d opposite to the fourth rope reel 4d;

[0056] The third rope reel 4c and the third main drive component 21c are arranged diagonally opposite each other, and the fourth rope reel 4d and the fourth main drive component 21d are also arranged diagonally opposite each other. Further, the first rope 12a is connected to the first rope reel 4a and extends from the first outlet 701a along the output shaft direction parallel to the first drive component 20a, and the second rope 12b is connected to the second rope reel 4b and extends from the second outlet 701b along the output shaft direction parallel to the first drive component 20a.

[0057] The third cable 12c is connected to the third reel 4c and extends from the third outlet 701c in a direction parallel to the output shaft of the second drive member 20b. The fourth cable 12d is connected to the fourth reel 4d and extends from the fourth outlet 701d in a direction parallel to the output shaft of the second drive member 20b.

[0058] Furthermore, the first driving member 20a includes a first output shaft connected to the first main drive member 21a, a second output shaft connected to the second main drive member 21b, a first transmission assembly 22a located between the first main drive member 21a and the first winding rope pulley 4a, and a second transmission assembly 22b located between the second main drive member 21b and the second winding rope pulley 4b. The first driving member 20a simultaneously drives the first main drive member 21a and the second main drive member 21b to rotate.

[0059] The first main drive member 21a causes the first rope winding wheel 4a to rotate via the first transmission assembly 22a to release or wind up the rope. When the first rope winding wheel 4a rotates in the winding direction, the force Za exerted by the first transmission assembly 22a on the first main drive member 21a is axial and toward the first drive member 20a.

[0060] The second main drive member 21b causes the second rope winding wheel 4b to rotate via the second drive assembly 22b to release or wind up the rope. When the second rope winding wheel 4b rotates in the winding direction, the force Zb exerted by the second drive assembly 22b on the second main drive member 21b is axial and toward the first drive member 20a.

[0061] The second driving member 20b includes a third output shaft connected to the third main drive member 21c, a fourth output shaft connected to the fourth main drive member 21d, a third transmission assembly 22c located between the third main drive member 21c and the third rope reel 4c, and a fourth transmission assembly 22d located between the fourth main drive member 21d and the fourth rope reel 4b. The second driving member 20d simultaneously drives the third main drive member 21c and the fourth main drive member 21d to rotate.

[0062] The third main drive component 21c causes the third rope reel 4c to rotate via the third drive assembly 22c to release or reel in the rope. When the third rope reel 4c rotates in the rope reeling direction, the force Zc exerted by the third drive assembly 22c on the third main drive component 21c is axial and toward the second drive component 20b.

[0063] The fourth main drive component 21d causes the fourth rope reel 4d to rotate via the fourth drive assembly 22d to release or reel in the rope. When the fourth rope reel 4d rotates in the reeling direction, the force Zd exerted by the fourth drive assembly 22d on the fourth main drive component 21d is axial and toward the side of the second drive component 20b.

[0064] This invention rationally sets up multiple sets of main drive components, transmission assemblies, and rope winding wheels. During transmission, the direction of the force exerted on each main drive component by the transmission assemblies is limited. Under heavy load during rope winding, the force exerted on each main drive component by the transmission assemblies causes the main drive component to tend to move in the direction of the driving component. This effectively reduces noise and resistance during transmission, making the clothes drying rack quieter during operation and reducing wear on each internal transmission assembly, thus extending its overall lifespan.

[0065] In this design, the first driving member 20a drives the first winding pulley 4a and the second winding pulley 4b to rotate. Specifically, the first main transmission member 21a is connected to the first output shaft of the first driving member 20a and can rotate with the first output shaft. The first driving member 20a drives the first main transmission member 21a to rotate, and through the first transmission assembly 22a, the first winding pulley 4a rotates to release or retract the rope. In this design, to reduce noise during the rope retraction process, when the first winding pulley 4a rotates in the rope retraction direction, the force Za exerted by the first transmission assembly 22a on the first main transmission member 21a is axial and directed towards the first driving member 20a. This force Za is equivalent to pressing the first main transmission member 21a towards the first driving member 20a, causing the first main transmission member 21a to move towards the first driving member 20a or to have a tendency to move along the output shaft axially towards the first driving member 20a.

[0066] Meanwhile, the second main drive component 21b is connected to the second output shaft of the first drive component 20a and can rotate with the second output shaft. The second drive component 20b drives the second main drive component 21b to rotate, and through the second transmission assembly 22b, it causes the second rope reel 4b to rotate for rope unwinding or rewinding. In this scheme, in order to reduce noise during the rope rewinding process, when the second rope reel 4b rotates in the rope rewinding direction, the force Zb exerted by the second transmission assembly 22b on the second main drive component 21b is axial and toward the other side of the first drive component 20a. This force Zb is equivalent to pressing the second main drive component 21b toward the first drive component 20a, causing the second main drive component 21b to move toward the first drive component 20a or to have a tendency to move along the output shaft axially toward the first drive component 20a.

[0067] As the first driving component 20a drives the first rope wheel 4a and the second rope wheel 4b to rotate simultaneously, the forces Za and Zb are simultaneously transmitted to the first driving component, effectively reducing noise and resistance during the transmission process. This makes the clothes drying rack quieter during operation and also reduces the wear of the internal first driving components, thus extending its overall lifespan.

[0068] Similarly, the second driving member 20b is used to drive the third rope reel 4c and the fourth rope reel 4d to rotate. Specifically, the third main transmission member 21c is connected to the third output shaft of the second driving member 20b and can rotate with the third output shaft. The second driving member 20b drives the third main transmission member 21c to rotate, and through the third transmission assembly 22c, the third rope reel 4c rotates to release or reel in the rope. In this scheme, in order to reduce noise during the rope reeling process, when the third rope reel 4c rotates in the rope reeling direction, the force Zc exerted by the third transmission assembly 22c on the third main transmission member 21c is axial and toward the second driving member 20b. This force Zc is equivalent to pressing the third main transmission member 21c toward the second driving member 20b, causing the third main transmission member 21c to move toward the second driving member 20b or to have a tendency to move along the output shaft axially toward the second driving member 20b.

[0069] Meanwhile, the fourth main drive component 21d is connected to the fourth output shaft of the second drive component 20b and can rotate with the fourth output shaft. The second drive component 20b drives the fourth main drive component 21d to rotate, and through the fourth transmission assembly 22d, it causes the fourth rope reel 4d to rotate for rope unwinding or rewinding. In this design, to reduce noise during rope rewinding, when the fourth rope reel 4d rotates in the rope rewinding direction, the force Zd exerted by the fourth transmission assembly 22d on the fourth main drive component 21d is axial and directed towards the other side of the second drive component 20b. This force Zd is equivalent to pressing the fourth main drive component 21d towards the second drive component 20b, causing the fourth main drive component 21d to move towards the second drive component 20b or to have a tendency to move along the output shaft axially towards the second drive component 20b.

[0070] During the process of the second drive component 20b driving the third rope wheel 4c and the fourth rope wheel 4d to rotate simultaneously, the forces Zc and Zd are simultaneously transmitted to the second drive component, effectively reducing noise and resistance during the transmission process. This makes the clothes drying rack quieter during operation and also reduces the wear of the internal second drive components, thus extending its overall lifespan.

[0071] Furthermore, when the first rope reel 4a is in a stationary state, the tension F1 of the first rope 12a on the first rope reel 4a causes the stationary force Z1 of the first transmission component 22a acting on the first main transmission component 21a to be axial and toward the first drive component 20a.

[0072] When the second rope reel 4b is in a stationary state, the tension F3 of the second rope 12b on the second rope reel 4b causes the stationary force Z2 of the second transmission component 22b acting on the second main transmission component 21b to be axial and toward the first drive component 20a.

[0073] Of course, in practice, the direction of the force between the first main drive component 21a and the first transmission component 22a is relatively complex. Therefore, the force Z1 referred to in this solution can be the total force or the component of the total force along the output shaft axis. Moreover, the force or component in the axial direction is only in two directions: one is towards the first drive component as indicated in this solution, and the other is the opposite side, i.e., away from the first drive component. In actual operation, if the force is towards the side away from the first drive component, the resistance and noise experienced by the first main drive component during transmission will be greater. This is because during the operation of the first drive component, the rotor of the first drive component, i.e., the first output shaft, and the first main drive component will have circumferential and radial runout, which is caused by the gaps between the components. This solution utilizes the force of the first transmission component when the first main drive component moves, causing it to press against the first drive component, which helps to reduce the runout of the main drive component during operation, thereby reducing noise.

[0074] The direction of the force exerted by the contact between the second main drive component 21b and the second transmission assembly 22b is relatively complex. Therefore, the force Z2 referred to in this solution can be the total force or the component of the total force along the output shaft axial direction. Furthermore, the axial force or component has only two directions: one is towards the first drive component as indicated in this solution, and the other is the opposite side, i.e., away from the first drive component. In actual operation, if the force is directed away from the first drive component, the resistance and noise experienced by the second main drive component during transmission will be greater. This is because during the operation of the first drive component, the rotor of the first drive component (i.e., the second output shaft) and the second main drive component will exhibit circumferential and radial runout due to gaps between assembled components. This solution utilizes the force exerted by the second transmission assembly on the second main drive component during operation, causing it to press against the first drive component, which helps reduce the runout of the main drive component during operation, thereby reducing noise.

[0075] Similarly, for the second drive assembly, the direction of the force exerted by the contact between the third main drive component 21c and the third transmission assembly 22c is relatively complex. Therefore, the force Z3 referred to in this solution can be the total force or the component of the total force along the output shaft axial direction. Moreover, the force or component in the axial direction has only two directions: one is towards the second drive component as indicated in this solution, and the other is the opposite side, i.e., away from the second drive component. In actual operation, if the force is directed away from the second drive component, the resistance and noise experienced by the third main drive component during transmission will be greater. This is because during the operation of the second drive component, the rotor of the second drive component, i.e., the first output shaft, and the third main drive component will experience circumferential and radial runout, which is caused by the gaps between the assembled parts. This solution utilizes the force exerted by the third transmission assembly on the third main drive component during its operation, causing it to press against the third main drive component in the direction of the second drive component, which helps to reduce the runout of the main drive component during operation, thereby reducing noise.

[0076] The direction of the force exerted by the contact between the fourth main drive component 21d and the fourth transmission assembly 22d is relatively complex. Therefore, the force Z4 referred to in this scheme can be the total force or the component of the total force along the output shaft axis. Furthermore, the axial force or component has only two directions: one is towards the second drive component as indicated in this scheme, and the other is the opposite side, i.e., away from the second drive component. In actual operation, if the force is directed away from the second drive component, the resistance and noise experienced by the fourth main drive component during transmission will be greater. This is because during the operation of the second drive component, the rotor of the second drive component (i.e., the second output shaft) and the fourth main drive component will exhibit circumferential and radial runout due to gaps between assembled components. This scheme utilizes the force exerted by the fourth transmission assembly on the fourth main drive component during its operation, causing it to press against the second drive component, which helps reduce the runout of the main drive component during operation, thereby reducing noise.

[0077] Furthermore, in this embodiment of the invention, in order to keep the force on the first main transmission member 21a directed toward the first driving member 20a, when the first rope reel 4a is in a stationary state, the tension F1 of the first rope 12a on the first rope reel 4a causes the stationary force Z1 of the first transmission component 22a acting on the first main transmission member 21a to be axial and toward the first driving member 20a.

[0078] When stationary, the first rope reel is subjected to a tension F1 from the first rope, which primarily bears the weight of the clothesline itself and the clothes on it. The tension F1 in the first rope causes the first rope reel 4a to act on the transmission assembly, which in turn acts on the first main transmission component. This also causes the first main transmission component to tend to move towards the first drive component 20a, effectively preventing the main transmission component from becoming loose.

[0079] like Figure 7 For example, in a stationary state, the first rope reel is subjected to a tension F1 from the first rope, causing it to tend to rotate counterclockwise. Meanwhile, the force F2 exerted by the first reel on the first transmission wheel B222a is upward, causing the first transmission wheel B222a to tend to rotate clockwise. Similarly, the force exerted by the first transmission wheel B222a on the first transmission wheel A221a is downward, causing the first transmission wheel A221a to tend to rotate counterclockwise. Since the first main transmission component is located below the first transmission wheel A221a... Figure 7 For example, the first transmission wheel A221a pushes the first main transmission member 21a toward the side of the first driving member 20a to achieve the above effect.

[0080] like Figure 9 For example, in a stationary state, the second rope reel is subjected to the tension F3 of the second rope, causing it to tend to rotate clockwise. Meanwhile, the force F4 exerted by the second reel on the second transmission wheel B222b is upward, causing the second transmission wheel B222b to tend to rotate counterclockwise. Similarly, the force exerted by the second transmission wheel B222b on the second transmission wheel A221b is downward, causing the second transmission wheel A221b to tend to rotate clockwise. Since the second main transmission component is located below the second transmission wheel A221b... Figure 9 For example, the second drive wheel A221b pushes the second main drive member 21b toward the other side of the first drive member 20a to achieve the above effect.

[0081] like Figure 9 For example, in a stationary state, the third rope reel is pulled by the third rope, causing it to tend to rotate clockwise. Consequently, the force exerted on the third transmission wheel B222c is downward, causing it to tend to rotate counter-clockwise. Similarly, the force exerted by the third transmission wheel B222c on the third transmission wheel A221c is upward, causing it to tend to rotate clockwise. Since the third main transmission component is located above the third transmission wheel A221c... Figure 9 For example, the third drive wheel A221c pushes the third main drive member 21c toward the other side of the second drive member 20b to achieve the above effect.

[0082] like Figure 9 For example, in a stationary state, the fourth rope reel is pulled by the fourth rope, causing it to tend to rotate counterclockwise. Consequently, the force exerted on the fourth transmission wheel B222d is downward, causing it to tend to rotate clockwise. Similarly, the force exerted by the fourth transmission wheel B222d on the fourth transmission wheel A221d is upward, causing it to tend to rotate counterclockwise. Since the fourth main transmission component is located above the fourth transmission wheel A221d... Figure 9 For example, the fourth drive wheel A221d pushes the fourth main drive member 21d toward the other side of the second drive member 20b to achieve the above effect.

[0083] like Figure 4 As shown, the motor housing 7 has a mid-plane group, which includes a first plane P1 passing through the rotation axis of the first rope reel 4a and the second rope reel 4b and parallel to the rotation axis of the first main drive member 21a or the second main drive member 21b, and a second plane P2 passing through the rotation axis of the third rope reel 4c and the fourth rope reel 4d and parallel to the rotation axis of the third main drive member 21c or the fourth main drive member 21d.

[0084] The third plane P3 passes through the rotating shaft of the first rope reel 4a or the third rope reel 4c and is perpendicular to the rotating shaft of the first main drive component 21a or the rotating shaft of the third main drive component 21c.

[0085] A fourth plane P4 passes through the rotating shaft of the second reel 4b or the fourth reel 4d and is perpendicular to the rotating shaft of the second main drive 21b or the fourth main drive 21d.

[0086] Furthermore, the first outlet 701a is located in the first A region separated by the first mid-plane group P1 and the third mid-plane P3, and the first main drive component 21a is located in the first B region diagonally opposite to the first A region.

[0087] The second outlet 701b is located in the second A region separated by the first mid-plane group P1 and the fourth mid-plane P4, and the second main drive component 21b is located in the second B region diagonally opposite to the second A region;

[0088] The third outlet 701c is located in the third A region separated by the second middle plane group P1 and the third middle plane P2, and the third main drive component 21c is located in the third B region diagonally opposite to the third A region.

[0089] The fourth outlet 701d is located in the fourth A region separated by the second middle plane group P1 and the fourth middle plane P4, and the fourth main drive component 21d is located in the fourth B region diagonally opposite to the fourth A region.

[0090] The first cable outlet 701a is arranged diagonally opposite to the first main drive component 21a, the second cable outlet 701b is arranged diagonally opposite to the second main drive component 21b, the third cable outlet 701c is arranged diagonally opposite to the third main drive component 21c, and the fourth cable outlet 701d is arranged diagonally opposite to the fourth main drive component 21d. By rationally setting the main drive component, transmission assembly, and rope winding wheel, the direction of the force exerted on the main drive component by the transmission assembly during transmission is limited, effectively reducing noise and resistance during transmission. This makes the clothes drying machine quieter during operation, reduces wear on internal transmission components, and extends its overall lifespan.

[0091] Furthermore, in this embodiment of the invention, the rotation axis of the first main drive component 21a is perpendicular to the rotation axis of the first winding sheave 4a, the rotation axis of the second main drive component 21b is perpendicular to the rotation axis of the second winding sheave 4b, the rotation axis of the third main drive component 21c is perpendicular to the rotation axis of the third winding sheave 4c, and the rotation axis of the fourth main drive component 21d is perpendicular to the rotation axis of the fourth winding sheave 4d. This reasonable structural arrangement reduces the overall size of the drive assembly. Moreover, in this solution, the rotation axes of the first main drive component 21a and the first transmission assembly 22a are also perpendicular, the rotation axes of the second main drive component 21b and the first transmission assembly 22b are also perpendicular, the rotation axes of the third main drive component 21c and the third transmission assembly 22c are also perpendicular, and the rotation axes of the fourth main drive component 21d and the fourth transmission assembly 22d are also perpendicular; that is, the main drive components and transmission assemblies adopt a worm gear transmission structure.

[0092] Furthermore, the first transmission assembly 22a includes a first transmission wheel A221a and a first transmission wheel B222a. The first transmission wheel A221a meshes with the first main transmission member 21a for transmission. The first transmission wheel B222a is located between the first transmission wheel A221a and the first winding wheel 4a. The first transmission wheel B222a meshes with the first transmission wheel A221a and the first winding wheel 4a for transmission. When the first winding wheel 4a rotates in the winding direction, the horizontal tangent of the rotation direction of the first transmission wheel A221a faces away from the first driving member 20a.

[0093] In this embodiment of the invention, the rope output direction of the first rope reel 4a is tangent to the first rope reel 4a and parallel to the shaft of the first main drive component 21a. (From the attached...) Figure 6As can be seen, the first rope reel 4a located on the left rotates clockwise when winding the rope. In this design, the specific structure of the first transmission assembly 22a is as follows: the first transmission assembly 22a includes a first transmission wheel A221a and a first transmission wheel B222a. The first transmission wheel A221a meshes with the first main transmission member 21a, and the first transmission wheel B222a is located between the first transmission wheel A221a and the first rope reel 4a. The first transmission wheel B222a meshes with both the first transmission wheel A221a and the first rope reel 4a. When the first rope reel 4a rotates in the winding direction, the horizontal tangent of the rotation direction of the first transmission wheel A221a points away from the first driving member 20a. This horizontal tangent refers to the horizontal tangent on the side where the first transmission wheel A contacts the first main transmission member 21a. Due to the above structural arrangement, the direction of rotation of the first transmission wheel A is consistent with the direction of rotation of the first rope reel. Therefore, from the attached... Figure 6 As can be seen, when the first rope reel on the left rotates clockwise to reel in the rope, the first transmission wheel A221a also rotates clockwise. Since the first main transmission component 21a is the power end, it is equivalent to the first main transmission component 21a needing to push the first transmission wheel A221a to rotate from right to left. At this time, the reaction force of the first transmission wheel A221a on the first main transmission component is towards the side of the first driving component.

[0094] In this embodiment of the invention, the first main transmission component 21a is a worm gear structure, which is sleeved on the first output shaft of the first drive component 20a. The first transmission wheel A221a is provided with a first worm gear transmission part A2211a that meshes with the first main transmission component 21a and a first gear transmission part 2212a that is coaxially arranged with the first worm gear transmission part A2211a and meshes with the first transmission wheel B222a. Its structure is simple, and because the transmission components are also integrated into the motor housing, it can increase the load-bearing capacity and meet usage requirements. Furthermore, the above structure can rationally utilize the layout within the motor housing, thereby improving space utilization and effectively reducing the overall size.

[0095] In this solution, the specific structure of the motor housing 7 is as follows: the motor housing 7 includes a motor housing base 708 and a motor housing cover 709. The motor housing cover 709 is detachably connected to the motor housing base 708, and the motor housing cover 709 and the motor housing base 708 cover each other to form the motor housing cavity 711. Its structure is simple and easy to assemble.

[0096] Additionally, the motor housing 708 includes a raised retaining wall 712. The inner side of the retaining wall 712 forms the oil seal cavity 102. The retaining wall 712 has a first notch 721 for the first output shaft of the first drive member 20a and a second notch 722 opposite to the first winding reel 4a. The retaining wall 712 forms the peripheral wall of the oil seal cavity and can be integrally formed with the motor housing, resulting in a simple structure and ease of manufacturing. Alternatively, the retaining wall can be sealed simultaneously with the motor housing cavity when the motor housing cover is connected to the motor housing.

[0097] like Figures 4 to 11 The invention illustrates a dual-drive, four-wire clothes drying rack. The motor housing 7 contains a detection element 101 and an oil-sealed cavity 102. At least the first main drive component 21a is located within the oil-sealed cavity 102, with its outward-facing end facing and close to the sidewall of the oil-sealed cavity 102. The detection element 101 is positioned between the first drive component 20a and the oil-sealed cavity 102. In this embodiment, due to the intelligent development of electric clothes drying racks, the lifting control mainly relies on the drive component. Therefore, detecting the parameters of the drive component is beneficial for automated control. Thus, in this solution, the detection element 101 is used to detect the number of rotations of the output shaft or the first main drive component 21a. Furthermore, the first output shaft of the first drive component 20a passes through the detection element 101, which facilitates detection, and the detection element 101 does not rotate with the first output shaft. In this solution, the detection element 101 is connected to the end face of the first drive component, and a through hole is provided on the detection element 101 for the first output shaft to pass through. In this scheme, the detection element 101 is a Hall sensor.

[0098] Furthermore, in some existing technologies, the detection element is placed inside the oil seal cavity. In this solution, the detection element is placed outside the oil seal cavity, which can avoid the detection element from being in prolonged contact with the grease inside the oil seal cavity, thus extending its service life. At the same time, the outer diameter of the detection element is larger than the outer diameter inside the oil seal cavity. When the detection element is placed outside the oil seal cavity, the volume of the oil seal cavity can be reduced, further reducing the volume of the motor housing.

[0099] The vibration of the main drive component and output shaft during operation is caused by the gaps between the components. In a compact installation space, the displacement caused by this small gap can easily lead to additional friction and wear. For example, in this solution, if the first main drive component 21a moves away from the drive component when the rope is wound, i.e., the force Za moves away from the first drive component 20a, the vibration of the first main drive component 21a during operation can easily cause the outer end face of the first main drive component to contact the side wall of the oil seal cavity, resulting in additional wear and greater noise. Therefore, the optimization of this solution can avoid the above problems in this confined space.

[0100] like Figures 12 to 21 The illustrated dual-drive four-line clothes drying rack includes a receiving cavity 14 with a pulley seat 3 corresponding to the number of cords. The pulley seat includes a pulley seat housing 30, a pulley groove 31 on the pulley seat housing 30, and a guide wheel 32 located in the pulley groove 31 and rotatable relative to the pulley groove 31. The pulley seat housing 30 also has a first opening 35 communicating with the pulley groove 31. The cord outlet 15 communicates with the pulley groove 31 and is located on the pulley seat housing 30. The cord 12 can be led out from the cord outlet 15 after passing around the guide wheel 32 through the first opening 35. The cross-sectional shape of the first opening 35 is trumpet-shaped. The end of the first opening 35 with a larger width dimension is far away from the guide wheel 32, and the width dimension of the first opening 35 near the guide wheel 32 is smaller than the width dimension of the guide wheel 32.

[0101] The pulley seat of the present invention employs a trumpet-shaped first opening, forming a trumpet-shaped cable inlet channel between the two ends of the first opening. The width of the cable inlet channel gradually decreases along the cable inlet direction. The first cable enters through the first opening and extends to the cable outlet under the guidance of the cable inlet channel. The first opening provides a large cable inlet range, facilitating cable insertion into the first opening. The cable inlet channel also provides a bending space for the cable, thereby increasing the cable inlet angle between the cable and the first opening, eliminating the need for a guide member. Furthermore, the width of the exit end of the first opening is smaller than the width of the guide wheel, forming a limiting structure at the first opening. When the cable is wound or unwound, the sidewall of the exit end of the first opening can prevent the cable from deviating, keeping the cable on the guide wheel and preventing it from running into the gap between the guide wheel and the pulley seat housing. This allows the pulley seat to simultaneously provide guidance and limiting functions for the cable, improving the versatility of the pulley seat's functions.

[0102] The first opening 35 has a trumpet-shaped cross-section, forming a trumpet-shaped wire inlet channel between its two ends. The width of the wire inlet channel gradually decreases along the wire inlet direction. The wire enters from the inlet end of the first opening 35 and, guided by the wire inlet channel, extends to the outlet end of the wire outlet 15 and exits. With this design, the inlet end of the first opening 35 can provide a larger wire inlet range for the wire, making it easier for the wire to be inserted into the first opening 35. The wire inlet channel can also provide a bending space for the wire, thereby increasing the wire inlet angle between the wire and the first opening 35. It does not require a guide to guide it, making it easier for the wire to enter the pulley seat housing 30 and increasing the speed at which the wire is assembled on the pulley seat.

[0103] Specifically, such as Figure 21 As shown, the wire entry angle in this embodiment is the angle β between the central axis of the first opening 35 and the wire.

[0104] Among them, the dotted line represents the central axis of the first opening 35, and the dashed line represents the direction of the existing rope entering the line;

[0105] Specifically, such as Figure 21 As shown, the width of the outlet end of the first opening 35 in this embodiment is smaller than the width of the guide wheel 32, so that a limiting structure is formed at the first opening 35. When the rope is wound or released, the side wall of the outlet end of the first opening 35 can prevent the rope from deviating, so that the rope is kept on the guide wheel 32 and the rope is prevented from running into the gap between the guide wheel 32 and the pulley seat housing 30.

[0106] The clothes drying rack pulley base of this application is applicable to existing double-pole clothes drying racks. With this design, there is no need to set a guide component between the pulley base and the corresponding rope winding wheel inside the clothes drying rack, which allows the clothes drying rack to reduce the number of parts and make the structure more compact. In addition, the pulley base also adds a guiding and limiting function for the rope, improving the versatility of the pulley base's functions.

[0107] In this embodiment, the pulley groove 31 is provided with a guide structure 372 for guiding the rope to the rope outlet 15 through which it passes.

[0108] Preferably, the guide structure 372 is an arc-shaped guide plate located in the pulley groove 31, forming a guide space inside the pulley groove 31. It works together with the guide wheel 32 to guide the rope from the first opening 35 to the rope outlet 15, making it convenient for the rope to be assembled on the pulley seat housing 30.

[0109] like Figures 12 to 21 As shown, in this embodiment, the pulley groove 31 extends through the top of the pulley seat housing 30, making the pulley groove 31 an open structure on the pulley seat housing 30, which further improves the convenience of assembling the rope on the pulley seat.

[0110] Furthermore, the first rope 12a is provided with a traction section 5 and a connecting section 6. The traction section 5 extends from the first opening 35 to the first winding wheel 4a, and the connecting section 6 extends from the rope outlet 15 to the first clothesline 11a. The pulley seat housing 30 has an initial position 7 and a rope winding compensation position 8. The rope winding compensation position 8 and the initial position 7 are arranged sequentially away from the first opening 35. When the first clothesline 11a experiences a horizontal deviation during the upward winding process, the traction section 5 can be further wound up under the traction of the first winding wheel 4a, and drive the guide wheel 32 to move from the initial position 7 to the rope winding compensation position 8, so that the first clothesline 11a remains in a roughly horizontal state.

[0111] Specifically, such as Figure 20As shown, the dotted line represents the connection posture of the rope when the guide wheel 32 is in the initial position. This allows us to intuitively understand that when the first clothes drying rod with horizontal deviation rises to the storage slot 13, the side of the first clothes drying rod with higher height will reach the storage slot first. The connecting section 6 on this side is completely stored in the pulley seat housing 30. The first rope winding wheel continues to wind up the traction section 5 and tighten it. At this time, the tightened traction section 5 can drive the guide wheel 32 to move from the initial position 7 to the compensation position 8, that is, the guide wheel 32 moves towards the first opening 35 to reduce the length of the rope in the pulley seat housing 30. This compensates for the winding length of the traction section 5, allowing the rope winding wheel to continue winding up the traction section 5 until the ropes on both sides are completely wound up and tightened by the rope winding wheel. This ensures that the other side of the first clothes drying rod can also be completely inserted into the storage slot, so that the first clothes drying rod is perfectly hidden in the ceiling. This makes operation convenient and effectively improves the user experience.

[0112] Specifically, the rope located inside the pulley housing 30 is a winding section 51. The two ends of the winding section 51 are connected to the traction section 5 and the connecting section 6, respectively. When the winding wheel continues to wind up the traction section 5 and tightens it, the traction section 5 can pull the winding section 51, causing it to deform in the length compensation direction inside the pulley housing 30, and forcing the guide wheel 32 to move towards the compensation position 8, that is, towards the direction close to the first opening 35. At this time, the winding section 51 is in a length compensation state, and its length gradually decreases. The reduced length compensates the traction section 5, allowing it to be continuously wound up by the winding wheel.

[0113] Furthermore, a limiting elongated hole 311 is provided on the side wall of the pulley groove 31, and the guide wheel 32 can move along the limiting elongated hole 311 between the initial position 7 and the rope winding compensation position 8.

[0114] The path between the initial position 7 and the rope winding compensation position 8 is the length compensation range;

[0115] Specifically, such as Figure 16 As shown, the extension direction of the limiting elongated hole 311 forms an angle α with the vertical line, where α satisfies: 45°≤α≤90°;

[0116] Specifically, in this embodiment, the vertical line is the perpendicular line between the center of the guide wheel 32 located at the initial position 7 and the rope outlet 15. When the included angle α is 45 degrees, the extension direction of the limiting elongated hole 311 is inclined downward towards the first opening 35, and the movement direction of the guide wheel 32 in the pulley groove 31 is inclined downward.

[0117] When the included angle α is 90 degrees, the extension direction of the limiting elongated hole 311 is transverse, and the movement direction of the guide wheel 32 in the pulley groove 31 is transverse.

[0118] This design allows the guide wheel 32 to move at any angle, both vertically and diagonally, within the pulley groove 31;

[0119] Specifically, such as Figure 17 As shown, the dashed line represents the straight-line distance between the midpoint of the first opening 35 and the midpoint of the rope outlet 15 when the winding section 51 is in the limit of the length compensation state. At this time, the winding section 51 is straight and in the shortest dimension.

[0120] When the guide wheel 32 is in the initial position 7, the winding section 51 is curved.

[0121] When the guide wheel 32 moves toward the compensation position 8, the winding section 51 also moves toward the compensation position 8 and gradually deforms from a curved shape to a straight shape, causing the length of the winding section 51 to gradually decrease.

[0122] Specifically, such as Figure 18 As shown, the included angle α in this embodiment is 90°, that is, the extension direction of the limiting elongated hole 311 is horizontal, and the guide wheel 32 can reciprocate in the horizontal direction within the pulley groove 31.

[0123] like Figures 12 to 21 As shown, the pulley seat housing 30 of this embodiment is provided with a reset component 9 that can reset the guide wheel 32 to the initial position 7. The reset component 9 is connected to the guide wheel 32 through the limiting elongated hole 311. When the clothes drying rod descends at the storage groove, the ropes on both sides are in a relaxed state. At this time, the reset component 9 can drive the guide wheel 32 to move away from the first opening 35 in the pulley groove 31 and reset it to the initial position 7.

[0124] Furthermore, the pulley seat housing 30 is provided with a reset component 9 capable of resetting the guide wheel 32 to the initial position 7. The reset component 9 includes a tension member 91 and a movable member 92. The movable member 92 is a connecting shaft rotatably connected to the guide wheel 32. The connecting shaft passes through the limiting elongated hole 311 and is connected to the tension member 91. The shaft body of the connecting shaft can slide along the limiting elongated hole 311 between the initial position 7 and the rope winding compensation position 8. The tension member 91 cooperates with the movable member 92 to pull the guide wheel 32 back to the initial position 7. Specifically, in this embodiment, the movable member 3 is a connecting shaft rotatably connected to the guide wheel 32. The connecting shaft passes through the limiting elongated hole 311 and is connected to the tension member 91. The tension member 91 directly pulls the connecting shaft, thereby driving the guide wheel 32 to move within the pulley groove 31. The transmission method is simple and reliable.

[0125] Specifically, the guide wheel 32 is rotatably connected to the connecting shaft. The guide wheel 32 can rotate relative to the rope in the pulley groove 31 to reduce the friction between the guide wheel 32 and the rope, making it easier for the winding wheel to wind up the rope, reducing noise, and extending the service life of the guide wheel 32 and the rope.

[0126] Preferably, the pulley seat housing 30 is provided with an assembly part 313, the inner side wall of the assembly part 313 is close to or abuts against the side wall of the tension member 91, the assembly part 313 restricts the tension member 91, and avoids the tension member 91 from shifting position during the tensioning process, so as to ensure the accuracy of the guide wheel 32 when it drives the guide wheel 32 to move.

[0127] Furthermore, the tensioning member 91 includes an elastic body 911 and a first connecting member 912 and a second connecting member 913 respectively disposed at both ends of the elastic body 911. The pulley seat housing 30 is provided with a fixing part 301. The first connecting member 912 is connected to the fixing part 301; the second connecting member 913 is connected to the connecting shaft.

[0128] The elastomer 911 has the advantages of simple structure, convenient assembly, simple and reliable transmission method, and low cost. Furthermore, through the cooperation between the first connecting member 912 and the fixed part, and the cooperation between the second connecting member 913 and the connecting shaft, the elastomer 911 is more firmly assembled in the pulley seat housing 30 and can better pull the connecting shaft.

[0129] Preferably, in this embodiment, the fixing part is a fixing post, and the first connecting member 912 is a first hook. The first hook is sleeved on the outside of the fixing post, and the assembly method is simple and quick.

[0130] Preferably, in this embodiment, the second connecting member 913 is a second hook, which is sleeved on the outside of the connecting shaft, and the assembly method is simple and quick.

[0131] like Figures 12 to 21 As shown, there are two assembly parts 13 in this embodiment, which are respectively located on both sides of the pulley groove 31. The elastic body 911, the fixing part, the first connecting member 912 and the second connecting member 913 correspond to the assembly part 13 one by one. The two ends of the connecting shaft pass through the corresponding limiting elongated holes 311 and extend into the assembly part 13 to connect with the second connecting member 913.

[0132] This design makes the pull-back effect of the elastomer 911 on the guide wheel 32 more stable and reliable.

[0133] like Figures 12 to 21As shown, the guide wheel 32 in this embodiment includes a pulley center body 321 and two pulley end bodies 322 disposed at its two ends. The diameter of both ends of the pulley center body 321 is the same as the end face size of the two pulley end bodies 322. The height of both ends of the pulley center body 321 gradually decreases towards its center to form an arc-shaped slope.

[0134] With this design, the rope can be confined to the pulley center body 321 by the two pulley end bodies 322. When the clothes drying rod is in the rising or falling state, it can effectively prevent the rope from deviating on the guide wheel 32, prevent the rope from running into the gap between the guide wheel 32 and the pulley seat housing 30, and ensure the normal operation of the clothes drying machine.

[0135] like Figures 12 to 21 As shown, the pulley groove 31 of this embodiment is also provided with two limiting steps 314 corresponding to the pulley end body 322. Each limiting step 314 is located on the outside of the corresponding pulley end body 322, and there is a gap between each limiting step 314 and the outer contour of each pulley end body 322 to form a limiting gap 3141. The width of the limiting gap 3141 is smaller than the diameter of the rope.

[0136] This ensures that when the rope slides along the guide wheel 32 and deviates to the gap between the guide wheel 32 and the pulley seat housing 30, the rope can abut against the limiting step 314 and cannot get stuck in the limiting gap 3141, so that the rope can maintain the state of abutting against the guide wheel 32 and will not fall into the gap between the guide wheel 32 and the pulley seat housing 30.

[0137] Preferred, such as Figures 12 to 21 As shown, the pulley seat housing 30 of this embodiment includes a top cover 317 and a base 318, which are detachably connected. The assembly part 313 is formed by the assembly of the two parts.

[0138] The limiting elongated hole 311, the fixing post, the pulley groove 31, and the rope outlet 15 are all provided on the base 318. During assembly, the guide wheel 32 is first sleeved on the outside of the connecting shaft. Then, the two elastic bodies 911 are sleeved on the corresponding ends of the connecting shaft through the second hook. Then, the guide wheel 32 is inserted into the pulley groove 31 through the opening above the pulley groove 31. Both ends of the connecting shaft are inserted into the limiting elongated hole 311 through the opening above the corresponding limiting elongated hole 311. The two elastic bodies 911 can be assembled into the corresponding assembly part 313 through the opening above the assembly part 313. At the same time, the two elastic bodies 911 are sleeved on the outside of the corresponding fixing post through the first hook.

[0139] Then the upper cover 317 is assembled onto the base 318. The upper cover 317 can close the opening of the assembly part 313 and the opening of the limiting elongated hole 311, thereby completing the assembly of the pulley seat.

[0140] Preferred, such as Figures 12 to 21 As shown, the pulley seat housing 30 of this embodiment is also provided with a connecting component for connecting with a clothes drying machine. The connecting component includes four connecting posts disposed in the pulley seat housing 30. The multiple connecting posts are disposed in the four corners of the pulley seat housing 30. Each connecting post is provided with a threaded hole 332. The top of the pulley seat housing 30 is also provided with a clearance hole 371 for avoiding the threaded hole 332.

[0141] Each assembly part 313 is provided with two connecting posts, which are located at both ends of the assembly part 313. The connecting post in each assembly part 313 that is away from the first opening 35 is a fixed post.

[0142] Multiple clearance holes 371 are located on the top cover 317. The assembled pulley seat is installed on the top of the clothes drying rack. Then, screws are passed through the clearance holes 371 and threaded into the first threaded hole 332 for threaded connection. This makes the top of the clothes drying rack act as the top cover of the pulley seat, closing the upper opening of the pulley groove 31. Therefore, it is not necessary to set a top cover on the pulley seat, which effectively reduces the thickness and volume of the pulley seat, making the structure between the clothes drying rack and the pulley seat more compact.

[0143] Furthermore, the two sets of drive mechanisms 2 are symmetrically arranged, with the drive mechanisms 2 located close to the central axis along the extension direction of the clothes drying machine casing 1.

[0144] This invention utilizes two symmetrically arranged drive mechanisms. Through optimized structural layout, the size of the clothes drying rack casing can be reduced, improving its installation adaptability and facilitating installation and disassembly. The independent drive mechanisms, which do not interfere with each other, facilitate maintenance. The two drive mechanisms are symmetrically arranged close to the central axis extending along the clothes drying rack casing and are on the same horizontal plane, ensuring synchronization during the raising and lowering of the two clothes drying rods. The pulley seats and their corresponding rope winding wheels are located on the same side, ensuring that the rope winding or unwinding does not interfere with each other and guaranteeing smooth movement of the clothes drying rods. By setting pulley seats on all four sides of the accommodating cavity, the length of the clothes drying rods and the distance between the two rods can be maximized, avoiding mutual interference during the raising and lowering of the clothes drying rods.

[0145] The above examples are merely illustrative of the technical content of the present invention to facilitate easier understanding by the reader, but do not imply that the implementation of the present invention is limited to these examples. Any technical extensions or re-creations made based on the present invention are protected by the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A dual-drive four-line clothes drying rack, comprising a drying rack housing (1), a first clothes drying rod (11a), a second clothes drying rod (11b), a first cord (12a), a second cord (12b), a third cord (12c), and a fourth cord (12d), characterized in that: The clothes drying rack housing (1) is provided with a receiving cavity (14). The receiving cavity (14) is provided with a drive mechanism (2) and a motor housing. The motor housing includes a motor housing base (708) and a motor housing cover (709). The motor housing cover (709) and the motor housing base (708) are closed to form the motor housing cavity (711). The first rope (12a) and the second rope (12b) are connected to the first clothes drying rod (11a) and connected to the drive mechanism (2). The third rope (12c) and the fourth rope (12d) are connected to the second clothes drying rod (11b) and connected to the drive mechanism (2). The drive mechanism (2) is provided with a first drive component for synchronously winding and unwinding the first rope (12a) and the second rope (12b), and a second drive component for synchronously winding and unwinding the third rope (12c) and the fourth rope (12d). The first drive component and the second drive component are located on the motor housing cavity (711). The first driving assembly includes a first driving member (20a), a first rope reel (4a) and a second rope reel (4b) respectively disposed on both sides of the first driving member (20a), a first main transmission member (21a) respectively disposed on both sides of the first driving member (20a) and used to drive the first rope reel (4a) to rotate, and a second main transmission member (21b) used to drive the second rope reel (4b) to rotate; the first rope reel (4a) and the first main transmission member (21a) are arranged diagonally opposite each other; the second rope reel (4b) and the second main transmission member (21b) are arranged diagonally opposite each other; The first driving member (20a) includes a first output shaft connected to the first main drive member (21a), a second output shaft connected to the second main drive member (21b), a first transmission assembly (22a) located between the first main drive member (21a) and the first rope reel (4a), and a second transmission assembly (22b) located between the second main drive member (21b) and the second rope reel (4b). The first driving member (20a) simultaneously drives the first main drive member (21a) and the second main drive member (21b) to rotate. The first main drive member (21a) causes the first rope reel (4a) to rotate through the first transmission assembly (22a) to release or reel in the rope. When the first rope reel (4a) rotates in the rope reeling direction, the force (Za) exerted by the first transmission assembly (22a) on the first main drive member (21a) is axial and toward the first driving member (20a). The accommodating cavity (14) is also provided with a pulley seat (3) corresponding to the number of ropes. The pulley seat includes a pulley seat housing (30). The pulley seat housing (30) is provided with a pulley groove (31) and a guide wheel (32) located in the pulley groove (31) and rotatable relative to the pulley groove (31). The pulley seat housing (30) is also provided with a first opening (35) communicating with the pulley groove (31). The pulley seat housing (30) is provided with a rope outlet (15) communicating with the pulley groove (31). The first rope (12a) is provided with a traction section (5) and a connecting section (6). (5) Between the first opening (35) and the first rope reel (4a), the connecting section (6) extends from the rope outlet (15) to the first clothesline (11a); the pulley seat housing (30) has an initial position (7) and a rope winding compensation position (8). When the first clothesline (11a) experiences a horizontal deviation during the upward winding process, the traction section (5) can be further wound up under the traction of the first rope reel (4a), and drive the guide wheel (32) to move from the initial position (7) to the rope winding compensation position (8), so that the first clothesline (11a) remains generally horizontal.

2. The dual-drive four-line clothes drying rack according to claim 1, characterized in that: The motor housing is provided with a first cable outlet (701a) opposite to the first winding sheave (4a) and a second cable outlet (701b) opposite to the second winding sheave (4b). The second drive assembly includes a second drive member (20b), a third rope reel (4c) and a fourth rope reel (4d) respectively disposed on both sides of the second drive member (20b), a third main drive member (21c) respectively disposed on both sides of the second drive member (20b) for driving the third rope reel (4c) to rotate, and a fourth main drive member (21d) for driving the fourth rope reel (4d) to rotate; the motor housing is provided with a third cable outlet (701c) opposite to the third rope reel (4c) and a fourth cable outlet (701d) opposite to the fourth rope reel (4d), the third rope reel (4c) and the third main drive member (21c) are arranged diagonally opposite each other, and the fourth rope reel (4d) and the fourth main drive member (21d) are arranged diagonally opposite each other.

3. A dual-drive four-line clothes drying rack according to claim 2, characterized in that: The first cord (12a) is connected to the first reel (4a) and extends from the first outlet (701a) in a direction parallel to the output shaft of the first drive member (20a). The second cord (12b) is connected to the second reel (4b) and extends from the second outlet (701b) in a direction parallel to the output shaft of the first drive member (20a). The third cord (12c) is connected to the third reel (4c) and extends from the third outlet (701c) in a direction parallel to the output shaft of the second drive member (20b). The fourth cord (12d) is connected to the fourth reel (4d) and extends from the fourth outlet (701d) in a direction parallel to the output shaft of the second drive member (20b).

4. A dual-drive four-line clothes drying rack according to claim 1, characterized in that: The second main drive member (21b) causes the second rope reel (4b) to rotate via the second drive assembly (22b) to release or reel in the rope. When the second rope reel (4b) rotates in the direction of reeling in the rope, the force (Zb) exerted by the second drive assembly (22b) on the second main drive member (21b) is axial and toward the first drive member (20a).

5. A dual-drive four-line clothes drying rack according to claim 1, characterized in that: When the first rope reel (4a) is in a stationary state, the tension (F1) of the first rope reel (4a) caused the first transmission assembly (22a) to exert a stationary force (Z1) on the first main transmission member (21a) along the axial direction and toward the first drive member (20a). When the second rope reel (4b) is in a stationary state, the tension (F3) of the second rope (12b) on the second rope reel (4b) causes the stationary force (Z2) of the second transmission assembly (22b) on the second main transmission member (21b) to be axial and toward the first drive member (20a).

6. A dual-drive four-line clothes drying rack according to claim 1, characterized in that: The first transmission assembly (22a) includes a first transmission wheel A (221a) and a first transmission wheel B (222a). The first transmission wheel A (221a) meshes with the first main transmission member (21a) for transmission. The first transmission wheel B (222a) is located between the first transmission wheel A (221a) and the first rope winding wheel (4a). The first transmission wheel B (222a) meshes with the first transmission wheel A (221a) and the first rope winding wheel (4a) for transmission. When the first rope winding wheel (4a) rotates in the rope winding direction, the horizontal tangent of the rotation direction of the first transmission wheel A (221a) is directed away from the first driving member (20a).

7. A dual-drive four-line clothes drying rack according to any one of claims 1-6, characterized in that: The rope (12) can be led out from the outlet (15) after passing around the guide wheel (32) through the first opening (35).

8. A dual-drive four-line clothes drying rack according to claim 7, characterized in that: The first opening (35) has a trumpet-shaped cross-section. The end of the first opening (35) with a larger width dimension is far away from the guide wheel (32), and the width dimension of the end of the first opening (35) near the guide wheel (32) is smaller than the width dimension of the guide wheel (32).

9. A dual-drive four-line clothes drying rack according to claim 1, characterized in that: The rope winding compensation position (8) and the initial position (7) are set sequentially in a direction away from the first opening (35).

10. A dual-drive four-line clothes drying rack according to claim 1, characterized in that: The pulley groove (31) has a limiting elongated hole (311) on its side wall. The guide wheel (32) can move along the limiting elongated hole (311) between the initial position (7) and the rope winding compensation position (8). The pulley seat housing (30) has a reset component (9) that can reset the guide wheel (32) to the initial position (7). The reset component (9) includes a tension member (91) and a movable member (92). The movable member (92) is a connecting shaft that is rotatably connected to the guide wheel (32). The connecting shaft passes through the limiting elongated hole (311) and is connected to the tension member (91). The shaft body of the connecting shaft can slide along the limiting elongated hole (311) between the initial position (7) and the rope winding compensation position (8). The tension member (91) cooperates with the movable member (92) to pull the guide wheel (32) back to the initial position (7).

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