Length compensation device for clothes drying machine

Abstract

The length compensation device applied to the clothes airing machine of the application, when the clothes airing rod with horizontal deviation rises to the storage groove, the side with higher height of the clothes airing rod will first reach into the storage groove, the connecting section of this side is completely stored into the shell, the motor continues to wind the traction section and tightens it, at this time, the traction section after being tightened can drive the guide wheel to move from the initial position to the compensation position, so as to reduce the length of the wire rope in the shell, so as to compensate the winding length of the traction section, so that the motor can continue to wind the traction section, until the wire ropes on both sides are completely wound and tightened by the motor, so as to ensure that the other side of the clothes airing rod can also completely enter into the storage groove, so that the clothes airing rod is perfectly hidden in the suspended ceiling, convenient operation, effectively improves the user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clothes drying machines, in particular to a length compensation device applied to a clothes drying machine and an automatic clothes drying machine. BACKGROUND

[0002] The automatic clothes drying machine is an intelligent household product driven by a motor, which mainly consists of a machine body, a power system, a control system, a lifting system and a drying system. Its basic function is to provide intelligent and automatic solutions for drying clothes and quilts for various household users.

[0003] The existing automatic clothes drying machine retracts or releases the lines on both sides by the same motor to make the clothes drying rod rise or fall. During installation, the length of the lines on both sides of the motor may have some length errors due to manual installation or process factors, and the clothes drying rod may have a horizontal deviation due to the different lengths of the lines on both sides. When the motor retracts the lines on both sides, the side of the clothes drying rod with a higher height will first reach the retraction position (i.e., the side of the clothes drying rod abuts against the inner side of the retraction slot of the clothes drying machine), at which time the motor has completely retracted the lines on the shorter side and paused the retraction work, so it cannot retract the lines on the longer side, causing the clothes drying rod to stop rising, while the side of the clothes drying rod with a lower height has not been completely retracted into the retraction slot, resulting in the clothes drying rod being unable to be completely retracted into the ceiling.

[0004] The present application is proposed to solve the technical problems of the prior art. SUMMARY

[0005] The technical problem of the prior art is that the lines on both sides of the motor have different lengths due to installation or process factors, causing the clothes drying rod to have a horizontal deviation and be unable to be completely retracted into the ceiling.

[0006] The technical solution adopted by the present application to solve the technical problem is:

[0007] The length compensation device applied to the clothes drying machine comprises a shell, a first opening and a second opening provided on the shell, a pulley groove between the first opening and the second opening, and a guide wheel rotatable in a circumferential direction provided in the pulley groove.

[0008] The lines can be led out from the second opening after passing through the guide wheel from the first opening. The lines between the first opening and the motor are a traction section, and the lines between the second opening and the clothes drying rod are a connection section.

[0009] The guide wheel has an initial position and a wire winding compensation position, when the horizontal deviation of the clothes drying rod occurs in the lifting and folding process, the traction section can be further wound under the traction of the motor, and the guide wheel is moved from the initial position to the wire winding compensation position, so that the clothes drying rod is kept in a substantially horizontal state.

[0010] The length compensation device applied to the clothes drying machine has a limiting long hole in the side wall of the pulley groove, and the guide wheel can move along the limiting long hole between the initial position and the wire winding compensation position.

[0011] The length compensation device applied to the clothes drying machine has a limiting long hole in the side wall of the pulley groove, and the guide wheel can move along the limiting long hole between the initial position and the wire winding compensation position.

[0012] The length compensation device applied to the clothes drying machine has a limiting long hole in the side wall of the pulley groove, and the guide wheel can move along the limiting long hole between the initial position and the wire winding compensation position.

[0013] The length compensation device applied to the clothes drying machine has a limiting long hole in the side wall of the pulley groove, and the guide wheel can move along the limiting long hole between the initial position and the wire winding compensation position.

[0014] The length compensation device applied to the clothes drying machine has a limiting long hole in the side wall of the pulley groove, and the guide wheel can move along the limiting long hole between the initial position and the wire winding compensation position.

[0015] The length compensation device applied to the clothes drying machine has a limiting long hole in the side wall of the pulley groove, and the guide wheel can move along the limiting long hole between the initial position and the wire winding compensation position.

[0016] The length compensation device applied to the clothes drying machine has a limiting long hole in the side wall of the pulley groove, and the guide wheel can move along the limiting long hole between the initial position and the wire winding compensation position.

[0017] The length compensation device applied to the clothes drying machine has a limiting long hole in the side wall of the pulley groove, and the guide wheel can move along the limiting long hole between the initial position and the wire winding compensation position.

[0018] The length compensation device applied to the clothes drying machine has a limiting long hole in the side wall of the pulley groove, and the guide wheel can move along the limiting long hole between the initial position and the wire winding compensation position.

[0019] The length compensation device applied to the clothes drying machine has a limiting long hole in the side wall of the pulley groove, and the guide wheel can move along the limiting long hole between the initial position and the wire winding compensation position.

[0020] The length compensation device applied to the clothes airing machine of the application, when the clothes airing rod with horizontal deviation rises to the storage groove, the side with higher height of the clothes airing rod will first reach into the storage groove, the connecting section is completely stored into the shell, the motor continues to wind the traction section and tightens it, at this time, the tightened traction section can drive the guide wheel to move from the initial position to the compensation position, so as to reduce the length of the wire rope in the shell, so as to compensate the winding length of the traction section, so that the motor can continue to wind the traction section, until the wire ropes on both sides are completely tightened by the motor, so as to ensure that the other side of the clothes airing rod can also completely enter into the storage groove, so that the clothes airing rod is perfectly hidden in the ceiling, convenient operation, and effectively improves the user experience.

[0021] The application will be further described below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is one of the structural schematic diagrams of the application;

[0023] Figure 2 It is the second structural schematic diagram of the application;

[0024] Figure 3 It is one of the exploded schematic diagrams of the application;

[0025] Figure 4 It is the second exploded schematic diagram of the application;

[0026] Figure 5 It is the third exploded schematic diagram of the application;

[0027] Figure 6 It is the top view schematic diagram of the application;

[0028] Figure 7 It is Figure 6 It is the sectional view schematic diagram of the top pressing piece of the application in the initial state along the A-A line;

[0029] Figure 8 It is Figure 6 It is the sectional view schematic diagram of the top pressing piece of the application in the elastic deformation state along the A-A line;

[0030] Figure 9 It is Figure 6 It is the sectional view schematic diagram of the guide wheel of the application in the initial position (assembled with the wire rope) along the B-B line;

[0031] Figure 10 It is Figure 6 It is the sectional view schematic diagram of the guide wheel of the application in the wire rope winding compensation position (assembled with the wire rope) along the B-B line;

[0032] Figure 11 It is Figure 6A cross-sectional view along the line C-C;

[0033] Figure 12 For Figure 6 A cross-sectional view along the line D-D of the guide wheel of the present application in the wire winding compensation position (with the wire installed);

[0034] Figure 13 For Figure 6 A cross-sectional view along the line E-E of the hidden guide wheel of the present application;

[0035] Figure 14 A structural view of the length compensation device of the present application assembled with the automatic clothes drying machine (hidden part of the machine shell). DETAILED DESCRIPTION

[0036] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0037] As Figures 1 to 13 shown, the length compensation device of the present application of the present embodiment is used for an automatic clothes drying machine. For example, due to installation or process factors, there is a certain length error in the wire length on both sides of the motor of the existing automatic clothes drying machine. A large length error is usually found during the installation process and can be immediately adjusted. A small error (generally within 15 mm) is usually found during the use of the clothes drying machine. For example, when the clothes drying rod is raised to the ceiling for storage, it can be found whether the clothes drying rod is flush with the ceiling, so that the length error of the wire is found.

[0038] In order to compensate for the small length error between the two sides of the wire, the present application provides a length compensation device applied to a clothes drying machine.

[0039] As Figures 1 to 13 shown, the length compensation device applied to the clothes drying machine of the present embodiment includes a shell 1. The shell 1 is provided with a first opening 11 and a second opening 12. The shell 1 is also provided with a pulley groove 13 which is in communication with the first opening 11 and the second opening 12 at both ends. A guide wheel 2 is rotatably connected in the pulley groove 13.

[0040] Specifically, as Figures 9 to 11 shown, the guide wheel 2 of the present embodiment has an initial position 7 and a wire winding compensation position 8 in the pulley groove 13. The guide wheel 2 can reciprocate between the initial position 7 and the wire winding compensation position 8.

[0041] In the present embodiment, the wire can pass through the guide wheel 2 from the first opening 11 and then be led out from the second opening 12. The wire between the first opening 11 and the motor is a traction section 5. The wire between the second opening 12 and the clothes drying rod is a connecting section 6.

[0042] Specifically, asFigure 10 As shown, the dashed line represents the connection posture of the steel wire when the guide wheel 2 is in the initial position, so that it can be intuitively understood that when the clothes hanger with horizontal deviation rises to the storage groove, the side of the clothes hanger with higher height will first reach the storage groove, and the connection section 6 is completely stored in the shell 1, the motor continues to wind the traction section 5 and tighten it, at this time, the tightened traction section 5 can drive the guide wheel 2 to move from the initial position 7 to the compensation position 8, so as to reduce the length of the wire in the shell 1, so as to compensate the winding length of the traction section 5, so that the motor can continue to wind the traction section 5, until the wire on both sides is completely wound and tightened by the motor, so as to ensure that the other side of the clothes hanger can also completely enter the storage groove, so that the clothes hanger is perfectly hidden in the ceiling, which is convenient to operate and effectively improves the user experience.

[0043] Specifically, the wire in the shell 1 is the winding section 51, and the two ends of the winding section 51 are connected with the traction section 5 and the connection section 6 respectively, wherein when the motor continues to wind the traction section 5 and tightens it, the traction section 5 can pull the winding section 51 to deform in the length compensation direction in the shell 1, and force the guide wheel 2 to move to the compensation position 8, at this time, the winding section 51 is in a length compensation state, and the length gradually decreases, and the decreased length compensates the traction section 5, so that it can be continuously wound by the motor.

[0044] As shown in Figure 4 and Figure 12 As shown, the side wall of the pulley groove 13 of the embodiment is provided with a limiting long hole 131, and the guide wheel 2 can move along the limiting long hole 131 between the initial position 7 and the wire winding compensation position 8, that is, the long diameter size of the limiting long hole 131 is the path between the initial position 7 and the compensation position 8, and the path is the length compensation range;

[0045] Specifically, the extension direction of the limiting long hole 131 forms an included angle a with the vertical line, wherein a satisfies: 0°≤a≤90°;

[0046] Specifically, the vertical line in the embodiment is the perpendicular line between the center of the guide wheel 2 in the initial position 7 and the second opening 12, when the included angle a is 0 degree, the extension direction of the limiting long hole 131 is vertical downward, and the moving direction of the guide wheel 2 in the pulley groove 13 is vertical;

[0047] When the included angle a is 90 degrees, the extension direction of the limiting long hole 131 is horizontal, and the moving direction of the guide wheel 2 in the pulley groove 13 is horizontal;

[0048] Such design makes the guide wheel 2 move at any angle between vertical and horizontal in the pulley groove 13;

[0049] Specifically, as shown in Figure 9As shown, the dashed line represents the length compensation state 52 where the straight-line distance between the midpoint of the first opening 11 and the midpoint of the second opening 12 is the limit of the winding segment 51. The winding segment 51 is straight, and at this time the winding segment 51 is at its shortest size.

[0050] When the guide wheel 2 is in the initial position 7, the winding section 51 is curved.

[0051] When the guide wheel 2 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.

[0052] Specifically, such as Figure 11 As shown, in this embodiment, the included angle α is 0°, that is, the extension direction of the limiting elongated hole 131 is vertically downward, and the guide wheel 2 can reciprocate in the vertical direction within the pulley groove 13.

[0053] like Figures 1 to 13 As shown, the housing 1 of this embodiment is provided with a reset component that can reset the guide wheel 2 to the initial position 7. The reset component is connected to the guide wheel 2 through the limiting elongated hole 131. 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 can drive the guide wheel 2 to move in the pulley groove 13 and reset it to the initial position 7.

[0054] like Figures 3 to 12 As shown, the reset component in this embodiment includes a pressing member 4 and a movable component 3. The movable component 3 is connected to the guide wheel 2. The guide wheel 2 moves in the pulley groove 13 through the movable component 3. The pressing member 4 can cooperate with the movable component 3 to provide a pressing force to the guide wheel 2 so as to press the guide wheel 2 at the initial position 7.

[0055] Specifically, the active component 3 in this embodiment includes a connecting shaft 31. One end of the connecting shaft 31 is connected to the guide wheel 2, and the other end passes through the limiting elongated hole 131 and is connected to the top pressing member 4. The shaft body of the connecting shaft 31 can slide along the long axis direction of the limiting elongated hole 131.

[0056] Preferably, the movable component 3 in this embodiment further includes a sliding block 32 disposed between the connecting shaft 31 and the top pressing member 4. The sliding block 32 is connected to the connecting shaft 31 and the top pressing member 4, so that the top pressing member 4 can provide top pressure to the guide wheel 2 through the cooperation of the sliding block 32 and the connecting shaft 31, and the transmission method is simple and reliable.

[0057] Preferably, the guide wheel 2 is rotatably connected with the connecting shaft 31, and the connecting shaft 31 is fixedly connected with the sliding block 32, or the guide wheel 2 is fixedly connected with the connecting shaft 31, and the connecting shaft 31 is rotatably connected with the sliding block 32, so that the guide wheel 2 can rotate circumferentially in the pulley groove 13, the friction between the guide wheel 2 and the wire rope is reduced, the motor can conveniently wind the wire rope, the noise is reduced, and the service life of the guide wheel 2 and the wire rope is prolonged.

[0058] In another embodiment, the movable assembly 3 only includes the connecting shaft 31, and the pressing piece 4 is directly connected with the connecting shaft 31.

[0059] As shown in Figures 3 to 8 , the housing 1 of the embodiment further has an assembly portion 14 with an opening, and the pressing piece 4 and the sliding block 32 are assembled into the assembly portion 14; the sliding block 32 can slide in the assembly portion 14; the assembly portion 14 is communicated with the pulley groove 13 through the limiting long hole 131, so that the sliding block 32 in the assembly portion 14 can be connected with the guide wheel 2 through the connecting shaft 31;

[0060] Preferably, the cross section of the sliding block 32 is rectangular, and the two side surfaces of the sliding block 32 are close to or abut against the inner side walls of the assembly portion 14, so as to limit the sliding direction of the sliding block 32; under the combined limiting action of the assembly portion 14 and the limiting long hole 131, the pressing piece 4 can accurately drive the guide wheel 2 to reset to the initial position 7 in the pulley groove 13 through the sliding block 32 and the connecting shaft 31.

[0061] As shown in Figures 5 to 8 , the housing 1 of the embodiment further has a limiting protrusion 15 above the sliding block 32;

[0062] When the pressing piece 4 drives the guide wheel 2 to reset to the initial position 7, the limiting protrusion 15 abuts against the top of the sliding block 32, so as to limit the continuous sliding of the sliding block 32, and ensure that the sliding block 32 accurately drives the guide wheel 2 to reset to the initial position 7.

[0063] Specifically, in the embodiment, the limiting protrusion 15 can also limit the sliding block 32 at the opening of the assembly portion 14, so as to prevent the sliding block 32 from being taken out of the assembly portion 14, and ensure the normal operation of the length compensation device.

[0064] Preferably, as shown in Figures 4 to 8 , and Figure 12 , the pressing piece 4 of the embodiment is an elastic spring, one end of the elastic spring abuts against the bottom of the assembly portion 14, and the other end abuts against the top of the sliding block 32, which has the advantages of simple structure, convenient assembly, simple and reliable transmission mode, and low cost.

[0065] As shown in Figures 4 to 8 , and Figure 12As shown, the assembly part 14 of the embodiment is provided with a mounting groove 141 for assembling the elastic spring, which ensures that the elastic spring will not be deviated in position during elastic deformation. In the process of elastic deformation, the top of the mounting groove 141 can also abut against the bottom of the sliding block 32 to prevent it from being pressed further downward, thereby further limiting the downward movement of the guide wheel 2.

[0066] As shown in Figure 3 , Figure 4 and Figure 12 , the assembly part 14 of the embodiment is provided with two, which are arranged on the two sides of the pulley groove 13. The limiting long hole 131, the elastic spring, the sliding block 32, the mounting groove 141, and the limiting protrusion 15 are one-to-one corresponding to the assembly part 14. The two ends of the connecting shaft 31 pass through the corresponding limiting long holes 131 and extend into the assembly part 14 to be connected with the sliding block 32.

[0067] With such a design, the pressing effect of the elastic spring on the guide wheel 2 is more stable and reliable.

[0068] As shown in Figures 3 to 5 , the guide wheel 2 of the embodiment includes a pulley center body 22 and two pulley end bodies 23 arranged at the two ends thereof. The two ends of each pulley end body 23 are provided with a large end face and a small end face. The diameter of the large end face is larger than that of the small end face. The size and shape of the small end face are the same as those of the pulley center body 22. The height of each pulley end body 23 gradually decreases from the large end face to the small end face in the length direction to form a slope. With such a design, the two pulley end bodies 23 can limit the string on the pulley center body 22. When the clothes drying rod is in the rising or descending state, the deviation of the string on the guide wheel 2 can be effectively avoided, the string can be prevented from running into the gap between the guide wheel 2 and the shell, and the normal operation of the clothes drying machine can be ensured.

[0069] As shown in Figure 5 , Figure 9 and Figure 12 , the pulley groove 13 of the embodiment is further provided with two limiting steps 132 corresponding to the pulley end bodies 23. Each limiting step 132 is located outside the corresponding pulley end body 23, and there is a gap between each limiting step 132 and the outer contour of each pulley end body 23 (i.e., the outer contour of the large end face) to form a limiting gap 133. When the guide wheel 2 is maintained in the initial position by the pressing provided by the pressing part 4, the width of the limiting gap 133 is smaller than the diameter of the string.

[0070] When the string slides along the guide wheel 2 and deviates to the gap between the guide wheel 2 and the shell, the string can abut against the limiting step 132 and cannot be clamped into the limiting gap 133, so that the string can be maintained in abutment with the guide wheel 2 and will not fall into the gap between the guide wheel 2 and the shell.

[0071] Preferred, such as Figure 13 As shown, the width of the first opening 11 in this embodiment is slightly smaller than the width of the pulley groove 13, so that a limiting structure is formed between the first opening 11 and the pulley groove 13. When the guide wheel 2 is in the initial position 7 in the pulley groove 13, and the rope is being wound or released, the side wall of the housing 1 at the first opening 11 can prevent the rope from deviating, so that the rope is kept on the pulley center body 22, and further prevents the rope from running into the gap between the guide wheel 2 and the housing 1.

[0072] Preferably, in this embodiment, the first opening 11 and the second opening 12 on the housing 1 are staggered. This design increases the contact area between the rope and the guide wheel 2, allowing the rope to better force the guide wheel 2 to overcome the top pressure of the top pressure member 4, making the length adjustment action faster and improving the adjustment effect.

[0073] Preferably, the pulley groove 13 of this embodiment is further provided with a guide structure 134 that can guide the rope from the first opening 11 to the second opening 12. The guide structure 134 is an arc-shaped guide surface. Preferably, the arc-shaped guide surface is one of the inner sidewalls of the pulley groove 13. With this design, a guide space is formed inside the housing, which makes it convenient for the rope to be assembled on the housing.

[0074] like Figure 14 As shown, the length compensation device of the present invention is mounted on an automatic clothes drying machine, wherein the automatic clothes drying machine includes a clothes drying machine housing 9, a motor assembly 91, a rope and a clothes drying rod 92, one end of the rope is connected to the motor assembly 91, and the other end passes through the length compensation device and is connected to the clothes drying rod 92.

[0075] In this embodiment, there are two ropes, and the length compensation device corresponds to each rope.

[0076] Preferably, the clothes drying rack housing 9 has a connected receiving cavity and a storage slot. The receiving cavity is used to assemble the motor assembly 91 and the length compensation device. Two ropes are respectively located on both sides of the motor. After each rope passes through the corresponding length compensation device, it passes through the storage slot and connects to the clothes drying rod 92. The motor assembly 91 can simultaneously wind up the two ropes to drive the clothes drying rod 92 to be stored in the storage slot. During the winding process, the length compensation device can perform a length compensation action on the corresponding rope, thereby completely storing the clothes drying rod inside the clothes drying rack, so that the clothes drying rod can be perfectly hidden in the ceiling, which looks more beautiful and improves the user experience.

[0077] Preferred, such as Figure 10 and Figure 14 As shown, the clothes drying rod 92 is provided with rope fixing parts 921 corresponding to the length compensation devices. Each connecting segment 6 is fixedly connected to the clothes drying rod 92 through the corresponding rope fixing parts 921.

[0078] As shown in Figure 10 The bottom of the shell 1 is provided with two limiting protrusions 121 extending towards the clothes drying rod 92, and the two limiting protrusions 121 are arranged on the two sides of the second opening 12.

[0079] When the clothes drying rod is raised into the storage groove, one of the rope fixing members 921 is driven by the connecting section 6 to pass through the second opening 12 into the shell 1, until the top of the side of the clothes drying rod 92 with higher height abuts against the bottom of the corresponding limiting protrusion 121, so as to limit the rope fixing member 921 on this side from continuing to move upwards, at this time, the connecting section 6 has been completely stored in the pulley groove 13 and cannot continue to be wound, at this time, the motor can continue to wind the traction section 5 and tighten it.

[0080] Preferably, as shown in Figure 12 The width dimension of the rope fixing member 92 in the embodiment is smaller than the width dimension of the second opening 12, the width dimension of the rope fixing member 92 is greater than the width dimension of the pulley groove 13, and the connection between the second opening 12 and the pulley groove 13 is further provided with two limiting inclined surfaces 135, the two limiting inclined surfaces 135 are oppositely arranged along the width direction of the pulley groove 13, and the top of the rope fixing member 921 can abut against the two limiting inclined surfaces 135, further limiting the rope fixing member 921 from moving upwards.

[0081] The working principle of the length compensation device applied to the clothes drying machine:

[0082] When the clothes drying rod of the automatic clothes drying machine is in the state of rising, falling or drying clothes, the elastic spring is in the initial state, and presses the sliding block 32, so that it is maintained at the position of the opening of the assembly part 14, and the guide wheel 2 is driven by the connecting shaft 21 to be maintained at the initial position 7 in the pulley groove 13, at this time, the traction section 5 is in a relaxed state on the guide wheel 2;

[0083] When the clothes drying rod is raised into the storage groove, the side of the clothes drying rod with higher height will first reach into the storage groove and abut against the bottom of the corresponding limiting protrusion 121, the rope fixing member 921 on this side cannot continue to move upwards, and the connecting section 6 on the rope on this side is completely stored in the shell 1, the motor continues to wind the traction section 5 and tightens it, at this time, the tightened traction section 5 can tighten the winding section 51, so that it deforms in the length compensation direction on the guide wheel 2, the length gradually decreases, in the process of deformation, the guide wheel 2 is forced to overcome the pressing force of the elastic spring and is driven to move downwards in the direction of the rope winding compensation position 8, and the guide wheel 2 drives the sliding block 32 to press downwards through the connecting shaft 31, so that the elastic spring is compressed.

[0084] The length reduced in the deformation process of the winding section 51 is used to compensate the winding length of the traction section 5, so that the motor can continue to wind the traction section 5 until the wires on both sides are completely wound and tightened by the motor, to ensure that the other side of the clothes rail can also completely enter the storage groove, so that the clothes rail is perfectly hidden in the ceiling;

[0085] When the clothes rail is completely stored in the storage groove, the winding section 51 can always press against the guide wheel 2, so that the elastic spring is maintained in the compressed state;

[0086] When the clothes rail starts to descend, the wire changes to a relaxed state, the winding section 51 gradually removes the downward pressure on the guide wheel 2, at this time the elastic spring elastically deforms, gradually stretches to recover to the initial state, and drives the sliding block 32 to move upward in the assembly part 14, the sliding block 32 drives the guide wheel 2 to move upward in the pulley groove 13 through the connecting shaft 31, and resets to the initial position.

[0087] The above is only to further illustrate the technical content of the present application by way of examples, so that the reader can more easily understand, but does not represent that the embodiments of the present application are limited to this, any technical extension or re-creation made according to the present application is protected by the present application. The scope of protection of the present application is subject to the claims.

Claims

1. A length compensation device applied to a clothes drying machine, characterized in that: The application relates to a clothesline device, which comprises a shell (1), a first opening (11) and a second opening (12) arranged on the shell (1), a pulley groove (13) arranged between the first opening (11) and the second opening (12), and a guide wheel (2) arranged in the pulley groove (13) and capable of rotating in a circumferential direction; a wire rope can be led out from the second opening (12) after passing through the guide wheel (2) from the first opening (11), the wire rope between the first opening (11) and a motor is a traction section (5), and the wire rope between the second opening (12) and a clothesline is a connecting section (6); the guide wheel (2) has an initial position (7) and a wire rope winding compensation position (8); when the clothesline deviates horizontally during the lifting and folding process, the traction section (5) can be further wound under the traction of the motor, and the guide wheel (2) is driven to move from the initial position (7) to the wire rope winding compensation position (8), so that the clothesline keeps a substantially horizontal state as a whole. A limiting long hole (131) is arranged on the side wall of the pulley groove (13), and the guide wheel (2) can move along the limiting long hole (131) between the initial position (7) and the wire rope winding compensation position (8). An included angle between the extending direction of the limiting long hole (131) and a vertical line is 0-90 degrees. A limiting step (132) corresponding to a pulley end body (23) is further arranged on the pulley groove (13), the limiting step (132) is located outside the corresponding pulley end body (23), and there is a gap between the limiting step (132) and the outer contour of the pulley end body (23) to form a limiting gap (133).

2. The length compensation device applied to a clothes drying machine according to claim 1, wherein: A reset component capable of resetting the guide wheel (2) to the initial position (7) is arranged in the shell (1).

3. The length compensation device for use on a clothes drying machine according to claim 2, characterized in that: The reset component comprises a pressing piece (4) and a movable assembly (3), the movable assembly (3) is connected with the guide wheel (2), and the pressing piece (4) is matched with the movable assembly (3) to press the guide wheel (2) at the initial position (7).

4. The length compensation device for use on a clothes drying machine according to claim 3, characterized in that: The movable assembly (3) comprises a connecting shaft (31), one end of the connecting shaft (31) is connected with the guide wheel (2), and the other end of the connecting shaft (31) passes through the limiting long hole (131) and is connected with the pressing piece (4).

5. The length compensation device for use on a clothes drying machine according to claim 4, characterized in that: The movable assembly (3) further comprises a sliding block (32) arranged between the connecting shaft (31) and the pressing piece (4), and the sliding block (32) is connected with the connecting shaft (31).

6. The length compensation device for use on a clothes drying machine according to claim 5, characterized in that: An assembly part (14) with an opening is further arranged in the shell (1), the pressing piece (4) and the sliding block (32) are assembled into the assembly part (14), and the assembly part (14) is communicated with the pulley groove (13) through the limiting long hole (131).

7. The length compensation device for use on a clothes drying machine according to claim 5, characterized in that: A limiting protrusion (15) for limiting the reset sliding block (32) at the initial position (7) is further arranged in the shell (1).

8. The length compensation device for use on a clothes drying rack according to any one of claims 1 to 7, characterized in that: The extending direction of the limiting long hole (131) is vertically downward, and the width size of the limiting gap (133) is smaller than the diameter size of the wire rope when the guide wheel is maintained at the initial position.

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