Clothes airing machine power system and clothes airing machine

Abstract

The utility model relates to the technical field of clothes airing machines, in particular to a clothes airing machine power system and a clothes airing machine, the clothes airing machine power system comprises a shell, a motor, a transmission shaft, a reel assembly and a damping assembly, the motor, the transmission shaft, the reel assembly and the damping assembly are arranged in the shell, and the motor and the reel assembly are in transmission connection through the transmission shaft; the damping assembly comprises a damping piece and an elastic piece, one end of the damping piece is arranged on the shell through the elastic piece, and the other end of the damping piece abuts against the transmission shaft in a friction mode. According to the power system of the clothes airing machine, it can be guaranteed that the locking force of the clothes hanger is not changed and cannot be weakened along with use, and therefore the situation that the clothes hanger slides down due to the fact that the locking force is insufficient when the clothes hanger bears loads is avoided.

Description

Technical Field

[0001] This utility model relates to the field of clothes drying rack technology, and in particular to a clothes drying rack power system and a clothes drying rack. Background Technology

[0002] Clothes drying racks are common household appliances used for drying clothes or bedding. Existing electric clothes drying racks typically include a clothes rack, hanging rope, reel, and motor. The motor drives the reel to raise and lower the hanging rope. When the clothes rack stops at the desired height, the weight of the clothes increases, placing a heavier load on the reel and generating a larger torque. This torque could potentially drive the motor's output shaft, causing the clothes rack to descend. Therefore, to prevent this, the motor usually has a self-locking mechanism that locks itself when it stops rotating, preventing the reel from turning.

[0003] Currently, the self-locking mechanism of electric motors typically employs a worm gear self-locking structure. Self-locking occurs when the helix angle of the worm is less than the equivalent friction angle between the meshing teeth of the worm and worm wheel. However, to ensure motor transmission efficiency, the helix angle of the worm cannot be too small. After repeated loading of the clothes rack, the friction coefficient between the worm and the worm gear decreases, resulting in insufficient locking force. This leads to slippage during descent after the clothes rack stops rising or falling. Summary of the Invention

[0004] Based on this, the purpose of this utility model is to overcome the defects or deficiencies of the prior art and provide a clothes drying rack power system that can ensure that the locking force of the clothes drying rack remains unchanged and will not weaken with use, thereby avoiding insufficient locking force of the clothes drying rack when bearing weight, which would cause it to slide down.

[0005] This utility model is achieved through the following technical solution: a clothes drying rack power system, including a housing, and a motor, a drive shaft, a winding wheel assembly, and a damping assembly disposed within the housing. The motor and the winding wheel assembly are connected by transmission through the drive shaft. The damping assembly includes a damping element and an elastic element. One end of the damping element is disposed in the housing through the elastic element, and the other end of the damping element rubs against the drive shaft.

[0006] Furthermore, the housing includes a housing body and a mounting base disposed on the housing body. The motor, drive shaft, and winding wheel assembly are all disposed within the housing body. The mounting base has an inner cavity with one end open. The elastic element is disposed within the inner cavity. One end of the damping element is disposed on the mounting base through the elastic element, and the other end of the damping element rubs against the drive shaft through the opening.

[0007] Furthermore, the damping element includes a pressure-receiving part and a damping part, the damping part, the pressure-receiving part and the elastic element are arranged sequentially in a direction away from the opening, the pressure-receiving part matches the inner diameter of the inner cavity, and the damping part rubs against the drive shaft through the opening.

[0008] Furthermore, the elastic element is a spring, and the side of the compressed part away from the damping part is provided with a positioning groove. One end of the spring is disposed in the positioning groove, and the other end is disposed in the mounting base.

[0009] Furthermore, a wear compensation gap is provided between the pressure-bearing part and the inner side of the opening.

[0010] Furthermore, the end of the drive shaft away from the motor extends into the inner cavity through the opening. The damping element includes two damping plates, which are disposed opposite each other on both sides of the drive shaft. One end of the damping plate is disposed on the mounting base through the elastic element, and the other end rubs against the side of the drive shaft.

[0011] Furthermore, the mounting base includes a hollow first mounting base and a hollow second mounting base. The interiors of the first mounting base and the second mounting base are connected to form the inner cavity. The first mounting base is disposed inside the housing body, and the opening is provided on the side away from the second mounting base. The second mounting base is detachably disposed on the outer side of the housing body corresponding to the first mounting base. One end of the damping member is disposed on the second mounting base through the elastic member, and the other end is in frictional contact with the drive shaft through the opening.

[0012] Furthermore, the second mounting base extends outward from the end near the first mounting base and is provided with a first connecting portion, and the housing body is provided with a second connecting portion corresponding to the first connecting portion, and the first connecting portion and the second connecting portion are detachably assembled.

[0013] Furthermore, the drive shaft is a worm shaft that is driven and connected to the motor, and the winding wheel assembly includes a turbine disposed on one side of the worm shaft and a winding wheel that is driven and connected to the turbine. The turbine meshes with the worm shaft, and the damping element rubs against the end of the worm shaft away from the motor.

[0014] This utility model also provides a clothes drying rack, including the clothes drying rack power system described above.

[0015] Compared to existing technologies, the clothes drying rack power system provided by this utility model uses a damping component and an elastic component. The damping component is installed in the housing through the elastic component. Under the elastic action of the elastic component, the damping component rubs against the transmission shaft. By utilizing the elastic force of the elastic component, a stable frictional force is obtained, so that the self-locking force of the motor remains unchanged and does not weaken with use. This avoids the clothes drying rack from slipping due to insufficient locking force when under load.

[0016] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the power system of the clothes drying rack described in Embodiment 1. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the power system of the clothes drying rack described in Embodiment 1. Figure 2 ;

[0019] Figure 3 for Figure 2 Enlarged cross-sectional view of AA shown;

[0020] Figure 4 This is a schematic diagram of the structure of the housing body and the first mounting base as described in Embodiment 1. Figure 1 ;

[0021] Figure 5 This is a schematic diagram of the structure of the housing body and the first mounting base as described in Embodiment 1. Figure 2 ;

[0022] Figure 6 This is a schematic diagram of the damping component described in Embodiment 1. Figure 1 ;

[0023] Figure 7 This is a schematic diagram of the damping component described in Embodiment 1. Figure 2 ;

[0024] Figure 8 This is a schematic diagram of the structure of the second mounting base in Embodiment 1. Figure 1 ;

[0025] Figure 9 This is a schematic diagram of the structure of the second mounting base in Embodiment 1. Figure 2 ;

[0026] Reference numerals: 11, housing body; 111, second connecting part; 1111, screw hole; 12, mounting base; 121, first mounting base; 1211, first mounting hole; 1212, opening; 122, second mounting base; 1221, first connecting part; 1222, second mounting hole; 1223, through hole; 20, motor; 30, drive shaft; 41, turbine; 42, drive gear; 43, driven gear; 44, winding wheel; 50, damping assembly; 51, damping element; 511, pressure-bearing part; 5111, positioning groove; 512, damping part; 52, elastic element; 60, wear compensation gap. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] Example 1

[0029] like Figures 1 to 9 As shown, this embodiment provides a clothes drying rack power system, including a housing (not shown), a motor 20, a drive shaft 30, a winding wheel assembly, and a damping assembly 50. The motor 20, drive shaft 30, winding wheel assembly, and damping assembly 50 are all housed within the housing. The motor 20 and the winding wheel assembly are connected via the drive shaft 30. The winding wheel assembly is used to wind up the rope connected to the clothes drying rack, and the damping assembly 50 is used to frictionally abut against the drive shaft 30.

[0030] In this embodiment, the transmission shaft 30 is a worm shaft that is driveably connected to the motor 20. The worm shaft can be driveably connected to the motor shaft of the motor 20 via a coupling. Of course, in other alternative embodiments, the transmission shaft 30 can be a worm bushing fitted onto the motor shaft of the motor, or the transmission shaft 30 can be the motor shaft itself, with the worm gear profile directly machined on the side of the motor shaft away from the motor.

[0031] Correspondingly, the winding wheel assembly includes a turbine 41 disposed on one side of the worm shaft and a winding wheel 44 drivenly connected to the turbine 41. Both the turbine 41 and the winding wheel 44 are rotatably mounted within the housing via a rotating shaft, and the turbine 41 meshes with the worm shaft. The worm drive has self-locking properties, and the design of the worm and turbine 41 can improve the locking force of the clothes rack. It should be noted that the transmission shaft 30 and the winding wheel assembly in this embodiment are not limited to transmission via a worm shaft and turbine; they can also be transmitted via other gear sets, such as spur gear sets, helical gear sets, etc., or the winding wheel 44 can be directly mounted on the transmission shaft 30.

[0032] In this embodiment, the winding wheel assembly further includes a gear transmission group, through which the turbine 41 and the winding wheel 44 are driven. The gear transmission group includes a drive gear 42 and a driven gear 43. The drive gear 42 is coaxially fixed to the end of the turbine 41, and the driven gear 43 is coaxially fixed to the end of the winding wheel 44. The drive gear 42 meshes with the driven gear 43. The gear transmission group between the turbine 41 and the winding wheel 44 increases the transmission ratio, thereby amplifying the output torque of the motor 20 to meet the lifting requirements of the clothes rack. Of course, in other alternative embodiments, the winding wheel 44 can be directly fixed to the end of the turbine 41.

[0033] In this embodiment, there are two sets of winding wheel assemblies, each set being disposed on both sides of the drive shaft 30 and respectively connected to the drive shaft 30 for transmission. This arrangement ensures the synchronicity and stability of the lifting and lowering of both sides of the clothes rack.

[0034] It should be noted that the winding wheel assembly is not limited to the above structure and arrangement. The winding wheel assembly may also include a first winding wheel, a second winding wheel, a worm gear 41, and a gear transmission group. The first winding wheel and the second winding wheel are coaxially fixed to the two ends of the driven gear 43, and the driving gear 42 is coaxially fixed to the end of the worm gear 41. The worm gear 41 meshes with the worm shaft, and the driving gear 42 meshes with the driven gear 43. Alternatively, the first winding wheel is coaxially fixed to the end of the driven gear 43, the second winding wheel is located on one side of the first winding wheel, and meshes with the driven gear 43 of the first winding wheel through another driven gear. The driving gear 42 is located on the side of the first winding wheel away from the second winding wheel and meshes with the driven gear 43 of the first winding wheel. The worm gear 41 is coaxially fixed to the end of the driving gear 42 and meshes with the worm shaft.

[0035] The damping assembly 50 is disposed at the end of the drive shaft 30 away from the motor 20. The damping assembly 50 includes a damping element 51 and an elastic element 52. One end of the damping element 51 is disposed on the housing 10 through the elastic element 52, and the other end of the damping element 51 is in frictional contact with the drive shaft 30.

[0036] Specifically, the housing includes a housing body 11 and a mounting base 12 disposed on the housing body 11. The motor 20, the drive shaft 30, and the winding wheel assembly are all disposed within the housing body 11. The mounting base 12 is disposed corresponding to the end of the drive shaft 30 away from the motor 20. The mounting base 12 has an inner cavity with one open end, the opening 1212 facing the drive shaft 30. The elastic element 52 is disposed within the inner cavity. One end of the damping element 51 is disposed on the mounting base 12 via the elastic element 52, and the other end of the damping element 51 frictionally abuts against the drive shaft 30 through the opening 1212. The mounting base 12 with its inner cavity provides for the housing and support of the damping element 51 and the elastic element 52.

[0037] In this embodiment, the damping member 51 includes a pressure-receiving part 511 and a damping part 512. The damping part 512, the pressure-receiving part 511, and the elastic member 52 are arranged sequentially in a direction away from the opening 1212. The damping part 512 rubs against the end face of the drive shaft 30 through the opening. By pressing the pressure-receiving part 511 with the elastic member 52, the damping part 512 rubs against the end face of the drive shaft 30 to obtain a stable frictional force, so that the self-locking force of the motor remains unchanged. Of course, in other alternative embodiments, the damping element 50 may include two damping plates (not shown), the damping plates being arc-shaped. The end of the drive shaft 30 away from the motor 20 extends into the inner cavity through the opening 1212. The two arc-shaped damping plates are arranged opposite each other on both sides of the drive shaft 30. The outer arc-shaped side of the arc-shaped damping plate is disposed on the mounting base 12 through the elastic element 52, and the inner arc-shaped side of the arc-shaped damping plate rubs against the side of the drive shaft 30. This frictional contact with the side of the drive shaft 30 ensures that the locking force of the clothes rack remains constant.

[0038] In this embodiment, the pressure-receiving part 511 matches the inner diameter of the inner cavity. Specifically, the cross-sectional shape of the pressure-receiving part 511 is a combination of a semi-circle on one side and a rectangle on the other side. Correspondingly, the cross-sectional shape of the inner cavity of the mounting base 12 is also a combination of a semi-circle on one side and a rectangle on the other side. Through the design of matching the pressure-receiving part 511 with the inner cavity, the pressure-receiving part 511 and the damping part 512 with the pressure-receiving part 511 are radially limited, preventing the pressure-receiving part 511 and the damping part 512 from rotating under the drive of the transmission shaft 30. Of course, in other alternative embodiments, the cross-sectional shape of the pressure-receiving part 511 can be an ellipse, rectangle, or other polygon, and correspondingly, the cross-sectional shape of the inner cavity of the mounting base 12 can be an ellipse, rectangle, or other polygon. Of course, in this embodiment, the damping part 511 can also match the inner diameter of the opening 1212. In this embodiment, the damping portion 512 is a cylindrical structure that extends outward from the side of the pressure-bearing portion 511 away from the elastic member 52. Correspondingly, the opening 1212 is a circular opening. Of course, in other alternative embodiments, the cross-sectional shape of the damping portion 512 can be an ellipse, rectangle, or other polygonal shape, and correspondingly, the opening 1212 can be an elliptical through hole, a rectangular or other polygonal through hole, etc. In this embodiment, the damping member 51 is integrally formed. The damping member 51 can be a damping member made of plastic material or a damping member made of rubber material.

[0039] In this embodiment, a wear compensation gap 60 is provided between the pressure-bearing part 511 and the inner side of the opening 1212. Through the wear compensation gap 60, after the side of the damping part 512 that is in frictional contact with the end face of the drive shaft 30 wears, the damping part 512 can also move axially under the action of the elastic member 52 to continue to closely adhere to the end face of the drive shaft 30 and rub against the end face of the drive shaft 30, thereby keeping the frictional force between the damping part 512 and the end face of the drive shaft 30 stable.

[0040] In this embodiment, the elastic element 52 is a spring. A positioning groove 5111 is provided on the side of the compression portion 511 away from the damping portion 512. One end of the spring is disposed within the positioning groove 5111, and the other end is disposed on the mounting base 12. The design of the positioning groove 5111 facilitates the installation of the spring and prevents changes in the position of the spring against the compression portion 511, thus avoiding uneven wear between the damping portion 512 and the end face of the transmission shaft 30. Of course, the elastic element 52 in this embodiment is not limited to a spring; it can also be an elastic rubber component or an elastic element made of an elastomeric material, etc.

[0041] In an optional embodiment, the opening 1212 can be a shaft hole, in which the drive shaft 30 is rotatably disposed, and the end of the drive shaft 30 extends into the inner cavity through the shaft hole. The damping part 512 rubs against the drive shaft 30 within the inner cavity. Supporting the end of the drive shaft 30 away from the motor 20 through the shaft hole prevents this end from being suspended, contributing to the stability of the drive shaft 30's transmission and preventing it from jumping. Furthermore, a bearing can be installed within the shaft hole, and the drive shaft 30 cooperates with the bearing. The bearing reduces wear on the drive shaft 30 and improves the smoothness of its rotation.

[0042] In this embodiment, the mounting base 12 includes a hollow first mounting base 121 and a hollow second mounting base 122. The interiors of the first mounting base 121 and the second mounting base 122 are connected to form the inner cavity. Specifically, the first mounting base 121 is disposed inside the housing body 11. The side of the first mounting base 121 away from the housing body 11 has an opening 1212, and the side of the first mounting base 121 near the housing body 11 has a first mounting hole 1211 communicating with its interior. The first mounting hole 1211 penetrates the housing body 11 and communicates with the outside. The second mounting base 122 is detachably disposed on the outside of the housing body 11 corresponding to the first mounting base 121. The side of the second mounting base 122 facing the housing body 11 has a second mounting hole 1222 communicating with its interior. The interiors of the first mounting base 121 and the second mounting hole 1222 are connected to form the inner cavity. In this embodiment, the inner diameter of the inner cavity of the first mounting base 121 and the inner diameter of the first mounting hole 1211 are both matched with the pressure-receiving portion 511 of the damping member 51, so that the pressure-receiving portion 511 can be inserted into the inner cavity of the first mounting base 121 through the first mounting hole 1211; the inner diameter of the inner cavity of the second mounting base 122 and the inner diameter of the second mounting hole 1222 are both matched with the elastic member 52, so that the elastic member 52 can be inserted into the inner cavity of the second mounting base 122 through the second mounting hole 1222. The inner diameter of the first mounting hole 1211 is larger than the inner diameter of the second mounting hole 1222, so that the end of the elastic member 52 away from the second mounting base 122 can extend into the inner cavity of the first mounting base 121 and press against the pressure-receiving portion 511 located in the inner cavity of the first mounting base 121, while the damping portion 512 rubs against the drive shaft 30 through the opening 1212. The design of the first mounting base 121 and the second mounting base 122 facilitates the disassembly, assembly, and maintenance of the damping assembly 50. In this embodiment, the first mounting base 121 and the housing body 11 are integrally designed. Of course, in other alternative embodiments, the first mounting base 121 and the housing body 11 can be separate designs. The first mounting base 121 can be detachably mounted to the housing body 11 by means of screws, clips, etc., or it can be fixed to the housing body 11 by means of welding, bonding, etc.

[0043] In this embodiment, the second mounting base 122 extends outward from the end near the first mounting base 121 and has a first connecting portion 1221. The housing body 11 has a second connecting portion 111 corresponding to the first connecting portion 1221. The first connecting portion 1221 and the second connecting portion 111 are detachably assembled. In this embodiment, the first connecting portion 1221 has a through hole 1223, and the second connecting portion 111 has a screw hole 1111. A screw passes through the through hole 1223 and engages with the screw hole 1111, thereby allowing the second mounting base 122 to be detachably attached to the housing body 11. Of course, in other alternative embodiments, a first latching portion can be provided on the first connecting portion 1221, and a second latching portion can be provided on the second connecting portion 111. The second mounting base 122 can be detachably attached to the housing body 11 through the engagement of the first latching portion and the second latching portion.

[0044] Compared to existing technologies, the clothes drying rack power system provided by this utility model uses a damping component and an elastic component. The damping component is installed in the housing through the elastic component. Under the elastic action of the elastic component, the damping component rubs against the transmission shaft. By utilizing the elastic force of the elastic component, a stable frictional force is obtained, so that the self-locking force of the motor remains unchanged and does not weaken with use. This avoids the clothes drying rack from slipping due to insufficient locking force when under load.

[0045] Example 2

[0046] This embodiment provides a clothes drying rack, which includes the clothes drying rack power system as described in Embodiment 1. The clothes drying rack typically also includes a clothes rack and a rope, the rope being wound on a reel and connected to the clothes rack.

[0047] In some alternative implementations, a single clothes drying rack may include multiple clothes drying rack power systems and multiple ropes, with the ropes wound onto the winding reels of each clothes drying rack power system, and the clothes rack connected to the multiple ropes, thereby improving the stability of the clothes drying rack lifting and lowering.

[0048] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments and claims of this application are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that, unless otherwise stated, “a plurality” refers to two or more; the terms “first,” “second,” “third,” etc., are used only to distinguish and not to describe a particular order or sequence, nor should they be construed as indicating or implying relative importance. The term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items. When the above description relates to drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. In the description of this application, those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0049] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A clothes drying machine power system, characterized in that, The power system comprises a housing, a motor, a transmission shaft, a winding wheel assembly and a damping assembly arranged in the housing, the motor and the winding wheel assembly are drivingly connected through the transmission shaft, the damping assembly comprises a damping piece and an elastic piece, one end of the damping piece is arranged in the housing through the elastic piece, and the other end of the damping piece is in frictional contact with the transmission shaft.

2. The clothes dryer powered system of claim 1, wherein, The housing comprises a housing body and a mounting seat arranged in the housing body, the motor, the transmission shaft and the winding wheel assembly are arranged in the housing body, the mounting seat has an inner cavity with an open end, the elastic piece is arranged in the inner cavity, one end of the damping piece is arranged in the mounting seat through the elastic piece, and the other end of the damping piece is in frictional contact with the transmission shaft through the opening.

3. The clothes dryer powered system of claim 2, wherein, The damping piece comprises a pressure receiving part and a damping part, the damping part, the pressure receiving part and the elastic piece are arranged in sequence in the direction away from the opening, the pressure receiving part is matched with the inner diameter of the inner cavity, and the damping part is in frictional contact with the transmission shaft through the opening.

4. The clothes dryer powered system of claim 3, wherein, The elastic piece is a spring, one end of the spring is arranged in the positioning groove, and the other end of the spring is arranged in the mounting seat.

5. The clothes dryer powered system of claim 3, wherein, An abrasion compensation gap is left between the pressure receiving part and the inner side of the opening.

6. The clothes dryer powered system of claim 2, wherein, The transmission shaft extends into the inner cavity through the opening away from the motor, the damping piece comprises two damping pieces, the two damping pieces are arranged on the two sides of the transmission shaft in opposition, one end of the two damping pieces is arranged in the mounting seat through the elastic piece, and the other end of the two damping pieces is in frictional contact with the side surface of the transmission shaft.

7. The clothes dryer powered system of claim 2, wherein, The mounting seat comprises a hollow first mounting seat and a second mounting seat, the inner parts of the first mounting seat and the second mounting seat are connected to form the inner cavity, the first mounting seat is arranged on the inner side of the housing body, the opening is arranged on the side of the first mounting seat away from the second mounting seat, and the second mounting seat is detachably arranged on the outer side of the housing body corresponding to the first mounting seat; the damping piece is arranged in the first mounting seat, one end of the damping piece abuts against the second mounting seat through the elastic piece, and the other end of the damping piece is in frictional contact with the transmission shaft through the opening.

8. The clothes dryer powered system of claim 7, wherein, The end of the second mounting seat close to the first mounting seat extends outward to be provided with a first connecting part, the housing body is provided with a second connecting part corresponding to the first connecting part, and the first connecting part and the second connecting part are detachably assembled.

9. The clothes dryer powered system of claim 1, wherein, The transmission shaft is a worm shaft drivingly connected with the motor, the winding wheel assembly comprises a turbine arranged on one side of the worm shaft and a winding wheel drivingly connected with the turbine, the turbine is in engagement with the worm shaft, and the damping piece is in frictional contact with the end of the worm shaft away from the motor.

10. A clothes drying machine characterised in that, The power system comprises the power system of any one of claims 1-9. The power system comprises the power system of any one of claims 1-9.

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