Guide wheel shaft, line pressing device and clothes airing machine driving device

Abstract

The utility model discloses a guide wheel shaft, a wire pressing device and a clothes airing machine driving device. The guide wheel shaft comprises a motor, a transmission mechanism and a wire winding device. The motor drives the winding device through the transmission mechanism; the winding device comprises a shell and two wire spools used for winding steel wire ropes. The shell is provided with two openings for the steel wire rope to enter and exit; a guide wheel shaft is arranged at the opening, and the shaft core of the guide wheel shaft is parallel to the shaft core of the wire spool; a first spiral wire groove is formed in the periphery of the wire spool; a second spiral line groove is formed in the periphery of the guide wheel shaft; the height of the guide wheel shaft is consistent with that of the wire spool; meanwhile, the first spiral line groove and the second spiral line groove are kept consistent in horizontal height; based on the optimization of the structure of the winding device, the height of the guide wheel shaft and the height of the wire spool are consistent, and the spiral wire grooves are accurately aligned, so that stable guide of the steel wire rope in the winding and releasing process is achieved, and wire jumping and abrasion are reduced.

Description

Technical Field

[0001] This utility model relates to a clothes drying rack drive device, and more particularly to a clothes drying rack drive device that prevents the steel wire rope from getting tangled, which can reduce or lower the possibility that the steel wire rope is not wound around the winding reel according to the wire groove. Background Technology

[0002] As a common household appliance, a clothes drying rack typically consists of a motor, a transmission mechanism, and a reel for winding and unwinding the steel wire rope. The motor drives the reel to rotate forward and backward through the transmission mechanism, thereby controlling the winding and unwinding of the steel wire rope and ultimately the raising and lowering of the clothes rack.

[0003] For example, utility model patent with authorization announcement number "CN210085858U" discloses a clothes drying rack power assembly, which includes a base plate, a motor with dual output shafts, and two longitudinally placed winding reels. The motor is mounted laterally on the base plate and connected to the winding reels through a steering transmission component, achieving a compact power assembly layout. Furthermore, utility model patent with authorization announcement number "CN210066266U" also discloses a similar clothes drying rack power assembly, in which the motor is also mounted laterally, the winding reels are placed longitudinally, and power transmission is achieved through a steering transmission component.

[0004] However, existing clothes drying rack power units have some problems during use. Specifically:

[0005] 1. The outlet of the power unit of a clothes drying rack is usually equipped with a guide wheel shaft to guide the direction of the steel wire rope and maintain its tension. Currently, the surface of the guide wheel shaft is usually smooth. In actual use, the drying rod may vibrate, shake, or be lifted due to external forces, or other metal parts of the clothes drying rack may deform. These situations can cause the steel wire rope to slip relative to the surface of the guide wheel shaft.

[0006] 2. Furthermore, due to the smooth surface of the guide wheel shaft, the wire rope cannot be effectively fixed during sliding, which easily leads to problems such as skipped wires and repeated winding on the winding reel. These problems not only affect the normal use of the clothes drying rack, but may also cause damage to the wire rope, sluggish lifting of the clothes rack, or even equipment malfunction, causing inconvenience to users. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a clothes drying rack drive device that prevents the wire rope from slipping and avoids problems such as skipping and repeated tangling.

[0008] The core technical concept of this utility model lies in optimizing the structure of the winding device to ensure that the guide wheel shaft and the winding disc are at the same height and the spiral grooves are precisely aligned, thereby achieving stable guidance of the wire rope during winding and release, and reducing wire skipping and wear.

[0009] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a clothes drying rack drive device, including a motor, a transmission mechanism and a winding device; the motor drives the winding device through the transmission mechanism;

[0010] The winding device includes a housing and two winding reels for winding steel wire rope; the housing is provided with two openings for the steel wire rope to enter and exit.

[0011] A guide wheel shaft is provided at the opening, and the shaft core of the guide wheel shaft is parallel to the shaft core of the winding disc;

[0012] The outer periphery of the winding reel is provided with a first spiral groove;

[0013] The outer circumference of the guide wheel shaft is provided with a second spiral groove;

[0014] The guide wheel shaft is at the same height as the winding disc; at the same time, the first spiral groove and the second spiral groove are at the same horizontal height.

[0015] A further preferred embodiment of this utility model is as follows: the guide wheel shaft is mounted on the wire pressing frame; one end of the wire pressing frame is axially connected to the housing and is equipped with a torsion spring; both ends of the guide wheel shaft are axially connected to the wire pressing frame.

[0016] A further preferred embodiment of this utility model is as follows: the center of the guide wheel shaft is provided with a through hole, and a pin passes through the through hole to connect the guide wheel shaft to the wire pressing frame.

[0017] A further preferred embodiment of this invention is that the pitch of the first helical groove is the same as that of the second helical groove; and the depth of the first helical groove is the same as that of the second helical groove.

[0018] A further preferred embodiment of this invention is that the opening width of the second spiral groove is greater than the opening width of the first spiral groove.

[0019] Another subject: A clothes drying rack drive device, comprising a motor, a transmission mechanism, and a winding device; the motor drives the winding device through the transmission mechanism;

[0020] The winding device includes a housing and two winding reels for winding steel wire rope; the housing is provided with two openings for the steel wire rope to enter and exit.

[0021] A guide wheel shaft is provided at the opening, and the shaft core of the guide wheel shaft is parallel to the shaft core of the winding disc;

[0022] The outer periphery of the winding reel is provided with a first spiral groove; the outer periphery of the guide wheel shaft is provided with a second spiral groove.

[0023] The pitch of the first helical groove is the same as that of the second helical groove; the depth of the first helical groove is the same as that of the second helical groove; and the opening width of the second helical groove is greater than that of the first helical groove.

[0024] A further preferred embodiment of this utility model is as follows: the second spiral groove includes a spirally and continuously distributed second groove; the depth of the second groove is 1.4-1.6 mm, and the pitch is 2.4-2.6 mm; the height of the guide wheel shaft is 26-18 mm, and the outer diameter of the guide wheel shaft is 11-13 mm.

[0025] After installation, the guide wheel shaft is at the same height as the winding disc; at the same time, the first spiral groove and the second spiral groove are at the same horizontal height.

[0026] Another preferred subject: a guide axle, comprising an axle body having a through hole at its center for a pin to pass through;

[0027] The outer circumference of the axle body is provided with a second groove distributed in a spiral pattern; the depth of the second groove is 1.4-1.6mm and the pitch is 2.4-2.6mm.

[0028] A further preferred embodiment of this utility model is that the height of the axle body is 26-18mm, and the outer diameter of the axle body is 11-13mm.

[0029] Another subject: A wire pressing device, comprising a wire pressing frame, a guide wheel shaft and a torsion spring, the wire pressing frame including a fixed end and a wire pressing end, the torsion spring being mounted on the fixed end, and the guide wheel shaft being mounted on the wire pressing end;

[0030] The fixed end is shafted to the housing of the winding device, and the two ends of the guide wheel shaft are connected to the pressing end; the torsion spring always provides a spring force in the first direction to the pressing frame so that the pressing end applies pressure to the wire rope.

[0031] A further preferred embodiment of this utility model is as follows: the fixed end of the wire pressing frame includes two shaft connecting arms, the torsion spring is disposed between the two shaft connecting arms, and the fasteners install the shaft connecting arms onto the housing; the wire pressing end of the wire pressing frame includes a mounting frame, the mounting frame includes an upper frame wall, a lower frame wall, and two side frame walls; the center of the guide wheel shaft is provided with a through hole, and a pin passes through the through hole to connect the guide wheel shaft to the upper frame wall and the lower frame wall of the mounting frame.

[0032] Compared with existing technologies, the advantages of this invention are: the first helical groove on the outer circumference of the winding reel and the second helical groove on the outer circumference of the guide wheel shaft are at the same horizontal height, and both have the same pitch and depth. This ensures that the wire rope remains on the predetermined path during winding and unwinding, avoiding problems such as skipped wires or uneven winding caused by positional deviations. Through precise groove alignment, the wire rope can smoothly transition between the winding reel and the guide wheel shaft, reducing the risk of loosening or misalignment caused by external forces or vibrations, thereby significantly improving the winding stability and reliability of the wire rope.

[0033] The guide wheel shaft and the winding reel are at the same height, making the entire drive unit more compact and rationally laid out. This consistent height design not only reduces the size of the device but also optimizes the movement path of the wire rope, reducing friction and wear during operation. Simultaneously, the compact layout allows the drive unit to better adapt to different sizes of clothes drying rack components.

[0034] Through the precise design of the first and second helical grooves, the wire rope can be evenly stressed during winding and unwinding, reducing localized wear. Furthermore, the height consistency between the guide wheel shaft and the winding reel, along with the precise alignment of the grooves, further optimizes the guiding effect of the wire rope, reducing the risk of equipment failure due to skipped wires or uneven winding. This technology not only extends the service life of the wire rope and guide wheel shaft but also reduces maintenance and replacement costs caused by malfunctions. Attached Figure Description

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0036] Figure 1 This is a schematic diagram of the overall structure of the drive device of this utility model. Figure 1 ;

[0037] Figure 2 This is a schematic diagram of the overall structure of the drive device of this utility model. Figure 2 ;

[0038] Figure 3 This is a structural disassembly diagram of the drive device of this utility model;

[0039] Figure 4 This is a partial structural schematic diagram of the drive device of this utility model;

[0040] Figure 5 A schematic diagram showing the alignment of the first and second spiral grooves;

[0041] Figure 6 This is a structural disassembly diagram of the wire pressing device of this utility model;

[0042] Figure 7 This is a schematic diagram of the axle body of the guide wheel axle of this utility model. Detailed Implementation

[0043] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0044] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it will not be further defined and explained in subsequent figures.

[0045] The clothes drying rack drive device 100 is a core component for controlling the raising and lowering of the clothes drying rack, including a motor 101, a transmission mechanism 102, and a winding device 103. The motor 101 drives the winding device 103 through the transmission mechanism 102. The winding device includes a housing 10 and two winding reels 20 for winding steel wire rope. The housing 10 is provided with two openings 11 for the steel wire rope to enter and exit.

[0046] This technology uses the forward and reverse rotation of the motor to control the winding and unwinding of the steel wire rope, thereby controlling the smooth raising and lowering of the clothes rack. The winding device adopts a double winding reel structure, which optimizes the storage and winding path of the steel wire rope, while its compact structural layout allows it to be adapted to the main components of clothes racks of different sizes.

[0047] A guide wheel shaft 30 is provided at the opening 11, and the shaft core of the guide wheel shaft 30 is parallel to the shaft core of the winding reel 20. The main function of the guide wheel shaft 30 is to guide the movement direction of the wire rope, ensuring a smooth and stable transition when the wire rope enters and exits the winding reel 20. By setting the shaft core of the guide wheel shaft 30 to be parallel to the shaft core of the winding reel 20, the wire rope can maintain a consistent movement trajectory during winding and unwinding, avoiding wire rope wear or uneven winding caused by angular deviations. In addition, the parallel shaft core design can effectively reduce the friction of the wire rope during movement, improving the operating efficiency and reliability of the entire drive device.

[0048] It is important to note that the outer circumference of the winding reel 20 is provided with a first helical groove a, and the outer circumference of the guide wheel shaft 30 is provided with a second helical groove b. After installation, the guide wheel shaft 30 and the winding reel 20 are at the same height; at the same time, the first helical groove a and the second helical groove b are at the same horizontal level. This precise alignment of height and grooves ensures that the wire rope always stays on the predetermined path during winding and unwinding, avoiding problems such as wire rope skipping or uneven winding caused by positional deviations.

[0049] Furthermore, the spiral groove structure effectively guides the movement direction of the wire rope, reducing friction and wear during its movement. Secondly, by precisely controlling the groove depth h and pitch r, the winding effect of the wire rope s can be further optimized, increasing the service life of the winding reel 20 and the guide wheel shaft 30.

[0050] Furthermore, it should be noted that in the clothes drying rack drive unit, the guide wheel shaft 30 is mounted on the wire pressing frame 40. One end of the wire pressing frame 40 is fixed to the housing 10 via a shaft connection and is equipped with a torsion spring v. Both ends of the guide wheel shaft 30 are shaft-connected to the wire pressing frame 40. This structure not only provides stable guidance for the wire rope s, but also ensures that the guide wheel shaft 30 always maintains close contact with the wire rope through the elastic force of the torsion spring v, thereby effectively preventing the wire rope s from slipping or skipping during movement.

[0051] Furthermore, the elastic action of the torsion spring v automatically adjusts the pressure of the guide wheel shaft 30 on the wire rope s, adapting to the operating needs of the clothes drying rack under different working conditions. For example, during the lifting and lowering process of the clothes drying rack, the wire rope may experience slight vibration or loosening due to external forces. However, through the elastic buffering of the torsion spring v and the flexible adjustment of the wire clamp 40, the guide wheel shaft 30 can always maintain good contact with the wire rope, ensuring the smooth operation of the wire rope. In addition, this structure reduces equipment failures caused by wire rope skipping or uneven winding, improving the overall reliability and service life of the clothes drying rack.

[0052] It should be further noted that the pitch of the first helical groove a is the same as the pitch of the second helical groove b; the depth of the first helical groove a is the same as the depth of the second helical groove b; and the opening width of the second helical groove b is greater than the opening width of the first helical groove a. (See reference...) Figure 7 As shown, r represents the pitch, n represents the width of the helical groove opening, and h represents the depth of the helical groove.

[0053] Because the pitch and depth of the first helical groove a and the second helical groove b are the same, the wire rope s can maintain a consistent trajectory when transitioning from the guide wheel shaft 30 to the winding reel 20, avoiding wire rope skipping or uneven winding caused by mismatched pitch or depth. This technique ensures that the wire rope s remains in a stable guiding state during winding and release, reducing the risk of loosening or misalignment of the wire rope s due to external forces or vibrations.

[0054] The fact that the opening width of the second spiral groove b is greater than that of the first spiral groove a allows the guide wheel shaft 30 to more easily receive the wire rope, especially when the clothes dryer starts or stops, as the wire rope s may slightly deviate due to inertia. The larger opening width provides greater tolerance for the wire rope s, further reducing the possibility of the wire rope slipping or jumping off the guide wheel shaft, thereby improving the reliability and service life of the entire drive unit.

[0055] It is important to note that the guide wheel shaft 30 is a key component in the clothes drying rack's drive mechanism. Its purpose is to ensure the stable operation of the wire rope s during winding and unwinding, preventing issues such as skipped strands or uneven winding. The guide wheel shaft 30 has a central through-hole, and its structure includes a wheel shaft body. The central through-hole of the wheel shaft body is used to install a pivot pin p. Through the pivot pin p passing through the through-hole, the guide wheel shaft 30 is securely connected to the pressure frame 40. This connection method not only ensures the stability of the guide wheel shaft 30 but also allows it to rotate flexibly under the support of the pressure frame 40, thereby effectively guiding the wire rope. Furthermore, the pivot pin connection design effectively transmits lateral force or torque while maintaining high positioning accuracy even after repeated assembly and disassembly.

[0056] Furthermore, such as Figure 7 As shown, the outer circumference of the axle body is provided with a spirally distributed second groove k, with a depth h of 1.4-1.6 mm and a pitch r of 2.4-2.6 mm. These precise dimensional parameters ensure the stable operation of the wire rope on the guide axle 30, while also forming a good fit with the first spiral groove a on the winding reel 20. The height of the axle body is 26-18 mm, and the outer diameter is 11-13 mm. These dimensions allow the guide axle 30 to maintain consistency with the winding reel 20 in height and horizontal position, further optimizing the guiding effect of the wire rope.

[0057] In summary, the above-mentioned technical measures not only improve the operational stability and reliability of the clothes drying rack drive device, but also extend the service life of the wire rope and guide wheel shaft 30 through precise structural design and connection methods.

[0058] Specifically, the wire pressing device 104 mainly includes a wire pressing frame 40, a guide wheel shaft 30, and a torsion spring v. The wire pressing frame 40 is a structure with two functional ends, including a fixed end d1 and a wire pressing end d2.

[0059] The fixed end d1 is mounted on the housing 10 of the winding device via a shaft connection to ensure the stability of the wire pressing frame 40 during operation. The torsion spring v is mounted on the fixed end d1 to provide continuous elasticity to the wire pressing frame 40, enabling the wire pressing end d2 to apply stable pressure to the wire rope s and prevent the wire rope from loosening or skipping during operation.

[0060] Furthermore, the pressure end d2 is a mounting frame 42, including an upper frame wall 421, a lower frame wall 422, and two side frame walls 423, forming a stable support structure. The guide wheel shaft 30 has a through hole at its center, through which a pin p passes, connecting the guide wheel shaft 30 to the upper frame wall 421 and the lower frame wall 422 of the mounting frame 42. This connection method not only ensures the flexibility of the guide wheel shaft 30 but also allows adjustment of its pressure on the wire rope by the elastic force of the torsion spring v, ensuring stable operation of the wire rope in the second groove k of the guide wheel shaft 30.

[0061] Furthermore, the fixed end d1 of the wire clamping frame 40 is designed as two shaft-connected arms 41, which extend from the main structure of the wire clamping frame 40 and are mounted to the housing 10 of the winding device by fasteners—preferably screws t. This not only provides stable support for the wire clamping frame 40 but also allows it to swing flexibly under the action of the torsion spring v. The torsion spring v is installed between the two shaft-connected arms 41, and its elastic force provides continuous elastic force to the wire clamping frame 40, ensuring that the wire clamping end d2 can apply stable pressure to the wire rope s, thereby preventing the wire rope from loosening or skipping during operation.

[0062] It should also be noted that the wire pressing end d2 of the wire pressing frame 40 is designed as a mounting frame 42, which consists of an upper frame wall 421, a lower frame wall 422, and two side frame walls 423, forming a stable support structure. This structural design not only enhances the overall strength of the wire pressing end d2 but also provides a reliable mounting position for the guide wheel shaft 30. The guide wheel shaft 30 has a through hole in its center, through which a pin p passes, connecting the guide wheel shaft 30 between the upper frame wall 421 and the lower frame wall 422 of the mounting frame 42. This connection method ensures the stable installation and flexible rotation of the guide wheel shaft 30 on the wire pressing end d2. At the same time, through the elastic force of the torsion spring v, the guide wheel shaft 30 can apply appropriate pressure to the wire rope s, ensuring the stable operation of the wire rope in the second groove k of the guide wheel shaft 30. This reflects the innovative technical purpose achieved by the coordinated cooperation of the two components.

[0063] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Similarly, "first" and "second" are only for ease of understanding and have no other directional meaning, and cannot be considered as limitations on this utility model.

[0064] This invention describes a guide wheel shaft, a wire pressing device, and a driving device for preventing wire rope tangling. Specific examples are used to illustrate the principle and implementation of this invention. The descriptions of these embodiments are merely for the purpose of helping to understand this invention and its core concepts. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A clothes drying rack drive device, characterized in that: It includes a motor, a transmission mechanism, and a winding device; the motor drives the winding device through the transmission mechanism; the winding device includes a housing and two winding reels for winding steel wire rope; the housing is provided with two openings for the steel wire rope to enter and exit; A guide wheel shaft is provided at the opening, and the shaft core of the guide wheel shaft is parallel to the shaft core of the winding disc; The outer periphery of the winding reel is provided with a first spiral groove; The outer circumference of the guide wheel shaft is provided with a second spiral groove; The guide wheel shaft is at the same height as the winding disc; at the same time, the first spiral groove and the second spiral groove are at the same horizontal height.

2. The clothes drying rack drive device according to claim 1, characterized in that: The guide wheel shaft is mounted on the wire pressing frame; One end of the pressure frame is axially connected to the housing and is equipped with a torsion spring; both ends of the guide wheel shaft are axially connected to the pressure frame.

3. The clothes drying rack drive device according to claim 2, characterized in that: The guide wheel shaft has a through hole at its center, and a pin passes through the through hole to connect the guide wheel shaft to the wire pressing frame.

4. The clothes drying rack drive device according to claim 1, characterized in that: The pitch of the first helical groove is the same as that of the second helical groove; The depth of the first helical groove is the same as the depth of the second helical groove.

5. The clothes drying rack drive device according to claim 1, characterized in that: The opening width of the second helical groove is greater than the opening width of the first helical groove.

6. A clothes drying rack drive device, characterized in that: It includes a motor, a transmission mechanism, and a winding device; the motor drives the winding device through the transmission mechanism; the winding device includes a housing and two winding reels for winding steel wire rope; the housing is provided with two openings for the steel wire rope to enter and exit; A guide wheel shaft is provided at the opening, and the shaft core of the guide wheel shaft is parallel to the shaft core of the winding disc; The outer periphery of the winding reel is provided with a first spiral groove; the outer periphery of the guide wheel shaft is provided with a second spiral groove. The pitch of the first helical groove is the same as that of the second helical groove; the depth of the first helical groove is the same as that of the second helical groove; and the opening width of the second helical groove is greater than that of the first helical groove.

7. The clothes drying rack drive device according to claim 6, characterized in that: The second spiral groove includes a spirally continuous distribution of second grooves; the depth of the second groove is 1.4-1.6mm, and the pitch is 2.4-2.6mm; the height of the guide wheel shaft is 26-18mm, and the outer diameter of the guide wheel shaft is 11-13mm; After installation, the guide wheel shaft is at the same height as the winding reel.

8. A guide wheel shaft, characterized in that: Includes a wheel axle body, wherein the wheel axle body has a through hole at its center for the axle pin to pass through; The outer circumference of the axle body is provided with a second groove distributed in a spiral pattern; the depth of the second groove is 1.4-1.6mm and the pitch is 2.4-2.6mm.

9. A guide wheel shaft according to claim 8, characterized in that: The height of the axle body is 26-18mm, and the outer diameter of the axle body is 11-13mm.

10. A wire pressing device, characterized in that: It includes a wire pressing frame, a guide wheel shaft, and a torsion spring. The wire pressing frame includes a fixed end and a wire pressing end. The torsion spring is mounted on the fixed end, and the guide wheel shaft is mounted on the wire pressing end. The fixed end is shafted to the housing of the winding device, and the two ends of the guide wheel shaft are connected to the pressing end; the torsion spring always provides a spring force in the first direction to the pressing frame so that the pressing end applies pressure to the wire rope.

11. The wire pressing device according to claim 10, characterized in that: The fixed end of the wire clamp includes two shaft arms, the torsion spring is located between the two shaft arms, and the fasteners install the shaft arms onto the housing; The wire pressing end of the wire pressing frame includes a mounting frame, which includes an upper frame wall, a lower frame wall, and two side frame walls; The guide wheel shaft has a through hole at its center, and a pin passes through the through hole to connect the guide wheel shaft to the upper and lower frame walls of the mounting frame.

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