Driving device applied to clothes airing machine Clothes airing machine with driving device

Abstract

This invention belongs to the technical field of electric clothes drying racks, and particularly relates to a drive device applied to clothes drying racks. It includes a housing, within which a drive component, a main transmission component, a transmission assembly, and a rope winding wheel are housed. By rationally arranging the main transmission component, transmission assembly, and rope winding wheel, the direction of the force exerted on the main transmission component by the transmission assembly during transmission is limited. During rope winding (under heavy load), the force exerted on the main transmission component by the transmission assembly causes the main transmission component to tend to move towards the drive component, effectively reducing noise and resistance during transmission. This results in a quieter operation of the clothes drying rack and also reduces wear on the internal transmission components, extending its overall lifespan.

Description

Technical Field

[0001] This invention belongs to the technical field of electric clothes drying racks, and particularly relates to a drive device used in clothes drying racks. Background Technology

[0002] Electric clothes drying racks are an improvement on traditional hand-cranked clothes drying racks. They use a motor as a drive to automatically raise and lower the clothesline, making it convenient for users to hang and dry clothes. The clothesline is usually connected to the drying machine via a hanging rope, and the rope reel inside the drying machine uses the forward and reverse rotation of the motor to reel in and unreel the rope, ultimately raising and lowering the clothesline.

[0003] With the development of technology, the core component of electric clothes drying racks, namely the drive assembly, has become increasingly integrated. The rope reel is generally integrated into the drive assembly, making the installation of electric clothes drying racks more convenient. In the integrated drive assembly, the internal motor and the rope reel are mostly connected through an intermediate transmission component to achieve transmission and deceleration. Since the weight of the clothesline connected by the hanging rope includes the weight of the clothesline itself as well as the weight of the clothes being hung, the weight of the hanging rope ultimately acts on the motor and transmission assembly. During the operation of the clothes drying rack, especially when the clothesline is rising, the internal force of the drive assembly is relatively large, resulting in greater noise. Summary of the Invention

[0004] The purpose of this invention is to provide a drive device for use in clothes drying racks, which reduces the noise generated during the operation of the drive device through the reasonable arrangement of the transmission components and the main transmission components.

[0005] Based on this, the present invention provides a driving device for use on a clothes drying rack, including a housing, wherein a driving component, a main transmission component, a transmission assembly and a rope winding wheel are provided inside the housing;

[0006] The main transmission component is connected to the output shaft of the drive component and can rotate with the output shaft;

[0007] The driving component drives the main transmission component to rotate, and through the transmission assembly, the rope winding wheel rotates to release or wind up the rope. When the rope winding wheel rotates in the winding direction, the force exerted by the transmission assembly on the main transmission component is axial and toward the driving component.

[0008] As described above, in the drive device applied to a clothes drying rack, when the rope reel is in a stationary state, the tension of the rope reel on the rope causes the stationary force of the transmission assembly acting on the main transmission component to be axial and toward the drive component side.

[0009] As described above, the drive device applied to a clothes drying rack has a rope outlet on the housing, the rope outlet is located in a first area separated by a mid-plane group, and the main transmission component is located in a second area diagonally opposite to the first area;

[0010] The mid-plane group includes a first plane passing through the rotating shaft of the rope reel and parallel to the rotating shaft of the main drive component, and a second plane passing through the rotating shaft of the rope reel and perpendicular to the rotating shaft of the main drive component.

[0011] In the drive device applied to the clothes drying rack as described above, the rotation axis of the main transmission component is perpendicular to the rotation axis of the rope winding wheel.

[0012] As described above, in the drive device applied to a clothes drying rack, the rope output direction of the rope winding wheel is tangent to the rope winding wheel and parallel to the shaft of the main drive component.

[0013] As described above, the drive device applied to a clothes drying rack includes a first drive wheel and a second drive wheel. The first drive wheel meshes with the main drive component, and the second drive wheel is located between the first drive wheel and the rope winding wheel, meshing with the first drive wheel and the rope winding wheel. When the rope winding wheel rotates in the rope winding direction, the horizontal tangent of the rotation direction of the first drive wheel faces away from the drive component.

[0014] As described above, the drive device applied to the clothes drying rack has a worm gear structure as the main transmission component, which is sleeved on the output shaft of the drive component. The first transmission wheel has a worm gear transmission part that meshes with the main transmission component and a gear transmission part that is coaxially arranged with the worm gear transmission part and meshes with the second transmission wheel.

[0015] As described above, the drive device applied to a clothes drying rack has an oil seal cavity inside the housing, at least the main drive component is located inside the oil seal cavity, and the outward-facing end of the main drive component is opposite to and close to the side wall of the oil seal cavity.

[0016] As described above, the driving device applied to the clothes drying rack is a dual-head output motor. The housing contains two sets of main transmission components, transmission assemblies, rope winding wheels, and two rope outlets. The two sets of main transmission components, transmission assemblies, rope winding wheels, and two rope outlets are symmetrically arranged on both sides of the driving component.

[0017] Implementing the embodiments of the present invention has the following beneficial effects:

[0018] This invention provides a drive device for clothes drying racks. By rationally arranging 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. During the rope winding process (under heavy load), the force exerted on the main drive component by the transmission assembly causes the main drive component to tend to move in the direction of the drive component, effectively reducing noise and resistance during transmission. This makes the clothes drying rack quieter during operation and also reduces the wear of internal transmission components, thus extending its overall lifespan. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the drive device of the present invention applied to a clothes drying rack;

[0021] Figure 2 for Figure 1 Exploded view;

[0022] Figure 3 This is a schematic diagram of the rotation of the drive device during the rope winding process.

[0023] Figure 4 This is a schematic diagram of the drive unit in its stationary state.

[0024] Figure 5 for Figure 1 Internal structure diagram;

[0025] Figure 6 This is a diagram of the internal structure of the shell;

[0026] Figure 7 This is a diagram of the internal structure of the drive unit. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1 to 7As shown, the drive device applied to the clothes drying rack includes a housing 1, and the housing 1 is provided with a drive component 2, a main transmission component 21, a transmission assembly 3 and a rope winding wheel 4; this solution integrates the rope winding wheel 4 into the housing 1 of the drive assembly, thereby simplifying the overall installation process of the product.

[0029] In this design, the drive component 2 is used to drive the winding wheel 4. Specifically, the main transmission component 21 is connected to the output shaft of the drive component 2 and can rotate with the output shaft. The drive component 2 drives the main transmission component 21 to rotate, and through the transmission assembly 3, the winding wheel 4 rotates to release or retract the rope. In this design, to reduce noise during the rope retraction process, when the winding wheel 4 rotates in the rope retraction direction, the force Z exerted by the transmission assembly 3 on the main transmission component 21 is axial and directed towards the drive component 2. This force Z is equivalent to pressing the main transmission component 21 towards the drive component 2, causing the main transmission component 21 to move towards the drive component 2 or to have a tendency to move along the output shaft axially towards the drive component 2.

[0030] Of course, in practice, the direction of the force between the main drive component 21 and the transmission assembly is quite complex. Therefore, the force Z 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 drive component as indicated in this solution, and the other is the opposite side, i.e., away from the drive component. In actual operation, if the force is towards the side away from the drive component, the resistance and noise experienced by the main drive component during transmission will be greater. This is because during the operation of the drive component, the rotor (i.e., the output shaft) and the 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 transmission assembly on the main drive component when it moves, causing it to press against the drive component, which helps to reduce the runout of the main drive component during operation, thereby reducing noise.

[0031] Furthermore, in this embodiment of the invention, in order to maintain the force acting on the main transmission component toward the driving component 2, when the rope reel 4 is in a stationary state, the tension F1 of the hanging rope on the rope reel 4 causes the stationary force Z1 acting on the main transmission component 21 by the transmission assembly 3 to be axial and toward the driving component 2. In the stationary state, the rope reel is subjected to the tension F1 of the hanging rope, which mainly bears the weight of the clothesline itself and the weight of the clothes on the clothesline. The tension F1 of the hanging rope causes the rope reel 4 to act on the transmission assembly, which in turn acts on the main transmission component, thus also causing the main transmission component to tend to move toward the driving component 2, and effectively preventing the main transmission component from becoming detached.

[0032] like Figure 4For example, in a stationary state, the rope reel is subjected to the tension F1 of the rope, causing it to tend to rotate clockwise. Meanwhile, the force F2 exerted by the reel on the second transmission wheel 32 is downward, causing the second transmission wheel 32 to tend to rotate counterclockwise. Similarly, the force exerted by the second transmission wheel on the first transmission wheel 31 is upward, causing the first transmission wheel 31 to tend to rotate clockwise. Since the main transmission component is located above the first transmission wheel 31 (within...),... Figure 4 (e.g., position example), so the first transmission wheel 31 pushes the main transmission member 21 towards the side of the driving member 2 to achieve the above effect.

[0033] More intuitively, in this embodiment of the invention, the housing 1 is provided with a rope outlet 101, which is located in a first region separated by a mid-plane group. The main transmission component 21 is located in a second region diagonally opposite to the first region. The mid-plane group includes a first plane P1 passing through the rotation axis of the rope winding wheel 4 and parallel to the rotation axis of the main transmission component 21, and a second plane P2 passing through the rotation axis of the rope winding wheel 4 and perpendicular to the rotation axis of the main transmission component 21. That is, the orientation of the rope outlet 101 and the orientation of the main transmission component 21 are approximately diagonally distributed. By reasonably setting the main transmission component, transmission assembly, and rope winding wheel, the direction of the force exerted on the main transmission component by the transmission assembly during transmission is limited, effectively reducing noise and resistance during transmission. This makes the clothes drying rack quieter during operation and reduces wear on the internal transmission components, thus extending its overall lifespan.

[0034] Furthermore, in this embodiment of the invention, the rotation axis of the main transmission component 21 is perpendicular to the rotation axis of the winding wheel 4. This rational structural arrangement reduces the overall size of the drive assembly. Moreover, in this solution, the rotation axis of the active transmission component 21 is also perpendicular to that of the transmission assembly; that is, the main transmission component and the transmission assembly employ a worm gear transmission structure.

[0035] In this embodiment of the invention, the rope output direction of the rope reel 4 is tangent to the rope reel 4 and parallel to the rotating shaft of the main transmission component 21. (From the attached...) Figure 3 As can be seen, the rope winding wheel 4 located on the left rotates counterclockwise when winding the rope. In this design, the transmission assembly 3 has the following structure: it includes a first transmission wheel 31 and a second transmission wheel 32. The first transmission wheel 31 meshes with the main transmission member 21, and the second transmission wheel 32 is located between the first transmission wheel 31 and the rope winding wheel 4, meshing with both. When the rope winding wheel 4 rotates in the winding direction, the horizontal tangent of the rotation direction of the first transmission wheel 31 points away from the driving member 2. This horizontal tangent refers to the horizontal tangent on the side where the first transmission wheel contacts the main transmission member 21. Due to the above structural arrangement, the rotation direction of the first transmission wheel 31 is consistent with the rotation direction of the rope winding wheel. Therefore, from the attached... Figure 3As can be seen, when the left-side winding wheel rotates counterclockwise to wind up the rope, the first transmission wheel 31 also rotates counterclockwise. Since the main transmission component 21 is the power end, it is equivalent to the main transmission component 21 needing to push the first transmission wheel 31 to rotate from right to left. At this time, the reaction force of the first transmission wheel 31 on the main transmission component is towards the side of the driving component.

[0036] In this embodiment of the invention, the main transmission component 21 is a worm gear structure, which is sleeved on the output shaft of the drive component 2. The first transmission wheel 31 is provided with a worm gear transmission part 311 that meshes with the main transmission component 21 and a gear transmission part 212 that is coaxially arranged with the worm gear transmission part 311 and meshes with the second transmission wheel 32. Its structure is simple, and because the transmission components are also integrated into the drive component housing, the load-bearing capacity can be increased, meeting usage requirements. Furthermore, the above structure can rationally utilize the layout within the housing, thereby improving space utilization and effectively reducing the overall size.

[0037] Furthermore, in this embodiment of the invention, the housing 1 is provided with an oil seal cavity 102, at least the main drive component 21 is located in the oil seal cavity 102, and the outward-facing end of the main drive component 21 is opposite to and close to the side wall of the oil seal cavity 102. As mentioned above, the main drive component and the output shaft have a runout during operation due to the gaps between the components. In a compact installation space, the displacement caused by this small gap can easily cause additional friction and wear. For example, in this solution, if the main drive component 21 moves away from the drive component when winding the rope (i.e., the force Z is directed away from the drive component), the runout of the main drive component 21 during operation can easily cause the outward-facing end face of the main drive component to contact the side wall of the oil seal cavity, thereby causing additional wear and greater noise. Therefore, the optimization of this solution can avoid the above problems in this confined space.

[0038] In this embodiment of the invention, the driving component 2 is a dual-head output motor, and the housing 1 is provided with two sets of the main transmission components 21, transmission components 3, rope winding wheels 4 and two rope outlets 101. The two sets of the main transmission components 21, transmission components 3, rope winding wheels 4 and two rope outlets 101 are symmetrically arranged on both sides of the driving component 2.

[0039] In this design, the housing 1 has the following specific structure: the housing 1 includes a housing base 108 and a housing cover 109, the housing cover 109 is detachably connected to the housing base 108, and the housing cover 109 and the housing base 108 cover each other to form the cavity 11. Its structure is simple and easy to assemble.

[0040] Additionally, the housing 108 has a raised retaining wall 12 inside, the inner side of which forms the oil seal cavity 102. The retaining wall 12 has a first notch 121 for the output shaft of the drive member 2 and a second notch 122 opposite to the winding reel 4. The retaining wall 12 forms the peripheral wall of the oil seal cavity and can be integrally formed with the housing, making it simple to connect and easy to manufacture. Of course, the retaining wall can be sealed at the same time as the inner cavity when the housing cover is connected to the housing. In this embodiment of the invention, the housing 108 also has a cover 13 for sealing the retaining wall 12, and the cover 13 is detachably connected to the housing 108.

[0041] In this embodiment of the invention, due to the intelligent development of electric clothes drying racks, their lifting and lowering control mainly relies on the driving component. Therefore, detecting the parameters of the driving component is beneficial for automated control. Thus, in this solution, the detection element 5 is used to detect the number of rotations of the output shaft or the main transmission component 21. Furthermore, the output shaft of the driving component 2 passes through the detection element 5, which facilitates detection, and the detection element 5 does not rotate with the output shaft. In this solution, the detection element 5 is connected to the end face of the driving component, and a through hole is provided on the detection element 5 for the output shaft to pass through. In this solution, the detection element 5 is a Hall sensor.

[0042] This invention provides a drive device for clothes drying racks. By rationally configuring 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. Under heavy load during rope winding, the force exerted on the main drive component by the transmission assembly causes the main drive component to tend to move in the direction of the drive component, effectively reducing noise and resistance during transmission. This makes the clothes drying rack quieter during operation and also reduces wear on the internal transmission components, extending its overall lifespan.

[0043] It should be understood that the terms "first," "second," etc., are used in this invention to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0044] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A drive device for use on a clothes drying rack, comprising a housing (1), characterized in that: The housing (1) is provided with a drive unit (2), a main transmission unit (21), a transmission assembly (3), and a rope winding wheel (4). The main transmission component (21) is connected to the output shaft of the drive component (2) and can rotate with the output shaft; The driving component (2) drives the main transmission component (21) to rotate, and through the transmission assembly (3) causes the rope winding wheel (4) to rotate to release or wind up the rope. When the rope winding wheel (4) rotates in the direction of winding up the rope, the force (Z) exerted by the transmission assembly (3) on the main transmission component (21) is axial and toward the driving component (2). The transmission assembly (3) includes a first transmission wheel (31) and a second transmission wheel (32). The first transmission wheel (31) meshes with the main transmission component (21) for transmission. The second transmission wheel (32) is located between the first transmission wheel (31) and the rope winding wheel (4) and meshes with the first transmission wheel (31) and the rope winding wheel (4) for transmission. When the rope winding wheel (4) rotates in the rope winding direction, the horizontal tangent of the rotation direction of the first transmission wheel (31) is directed away from the driving component (2). The main transmission component (21) is a worm gear structure, which is sleeved on the output shaft of the drive component (2). The first transmission wheel (31) is provided with a worm gear transmission part (311) that meshes with the main transmission component (21) and a gear transmission part (312) that is coaxially arranged with the worm gear transmission part (311) and meshes with the second transmission wheel (32). The housing (1) is provided with an oil seal cavity (102), at least the main drive component (21) is located in the oil seal cavity (102), and the outward end of the main drive component (21) is opposite to and close to the side wall of the oil seal cavity (102).

2. The drive device for use on a clothes drying rack according to claim 1, characterized in that, When the rope reel (4) is in a stationary state, the tension (F1) of the rope reel (4) causes the static force (Z1) of the transmission assembly (3) on the main transmission member (21) to be axial and toward the drive member (2).

3. The drive device for use on a clothes drying rack according to claim 1, characterized in that, The housing (1) is provided with a rope outlet (101), which is located in the first region separated by the middle plane group, and the main transmission component (21) is located in the second region diagonally opposite to the first region; The mid-plane group includes a first plane (P1) that passes through the rotation axis of the rope winding wheel (4) and is parallel to the rotation axis of the main drive member (21), and a second plane (P2) that passes through the rotation axis of the rope winding wheel (4) and is perpendicular to the rotation axis of the main drive member (21).

4. The drive device for use in a clothes drying rack according to claim 3, characterized in that, The rotation axis of the main drive component (21) is perpendicular to the rotation axis of the rope winding wheel (4).

5. The drive device for use on a clothes drying rack according to claim 4, characterized in that, The rope output direction of the rope reel (4) is tangent to the rope reel (4) and parallel to the shaft of the main drive component (21).

6. The drive device for use on a clothes drying rack according to claim 3, characterized in that, The driving component (2) is a dual-head output motor. The housing (1) is provided with two sets of the main transmission components (21), transmission components (3), rope winding wheel (4) and two rope outlets (101). The two sets of the main transmission components (21), transmission components (3), rope winding wheel (4) and two rope outlets (101) are symmetrically arranged on both sides of the driving component (2).

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