Hand-cranking device and hand-cranking clothes hanger

Abstract

The utility model provides a hand-cranking device and a hand-cranking clothes hanger. The hand-cranking device comprises a fixing pipe, a telescopic rod, a limiting mechanism and a handle, wherein the fixing pipe is used for being in transmission connection with a main shaft of a clothes airing winder; the fixing pipe is provided with a telescopic rod containing cavity extending in the length direction of the fixing pipe, and an opening of the telescopic rod containing cavity is formed in the end of the fixing pipe. The telescopic rod extends in the length direction of the fixed pipe, and one end of the telescopic rod movably penetrates through the telescopic rod containing cavity and is limited in the fixed pipe through a limiting mechanism; the other end of the telescopic rod penetrates out of the fixing pipe from the opening and is connected with the handle. According to the hand-cranking device, the length of the telescopic rod can be adjusted, so that the force arm is changed, and the labor-saving effect is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of clothes drying rack technology, specifically relating to a hand crank and a hand crank clothes drying rack. Background Technology

[0002] In existing hand-cranked clothes drying racks, the hand crank handle is connected to the clothes drying rod, allowing users to control the raising and lowering of the rod by cranking the handle. However, the handle length and the lever for rotation are fixed, making it impossible to adjust to different user heights and usage habits, resulting in some users finding it difficult to crank. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings and deficiencies in the existing technology and provide a hand crank handle that can adjust the length of the telescopic rod to change the lever arm and achieve the effect of saving effort.

[0004] This utility model is achieved through the following technical solution:

[0005] A hand crank includes a handle and a grip that are drivenly connected to the main shaft of a clothes drying winder; the handle is provided with a telescopic rod that can be moved and extended along its length, and the telescopic rod is connected to the grip; the handle is also provided with a limiting mechanism that restricts the movement of the telescopic rod.

[0006] This utility model provides a hand crank handle. The handle has a retractable telescopic rod along its length, which is connected to the handle. By adjusting the distance the telescopic rod extends and retracts within the handle, the handle length is changed, facilitating adjustment of the lever arm length. This allows the hand crank handle to be cranked without requiring significant external force. During use, extending the telescopic rod lengthens the lever arm, achieving a labor-saving effect. A limiting mechanism keeps one end of the telescopic rod within the handle, preventing it from being overstretched and detaching from the handle. The hand crank handle of this utility model allows for adjustment of the telescopic rod length, thereby changing the lever arm and achieving a labor-saving effect.

[0007] Furthermore, a sliding rail is provided inside the handle, and the sliding rail is arranged along the extension direction of the handle; one end of the telescopic rod is located inside the handle and slides in cooperation with the sliding rail, while the other end is located outside the handle and connected to the handle. The telescopic rod is movably arranged on the sliding rail, allowing the telescopic rod to move along the extension direction of the sliding rail. The sliding rail restricts the movement trajectory of the telescopic rod, ensuring the directionality of the lever arm, achieving a labor-saving effect, and preventing the telescopic rod from directly rubbing against the handle and causing scratches.

[0008] Furthermore, the sliding track includes a first track and a second track detachably mounted within the handle. The first track and the second track are arranged opposite to each other to form a guide groove that matches the telescopic rod. The telescopic rod is movably disposed within the guide groove. The first track and the second track are arranged opposite to each other to form a guide groove, and the telescopic rod is movably disposed within the guide groove to control the stability and directionality of the telescopic rod's movement.

[0009] Furthermore, several mounting holes are provided through the opposite sides of the handle; the outer sides of the first and second tracks are provided with track limiting parts, which engage with the mounting holes. The first and second tracks are detachably engaged with the mounting holes through the track limiting parts, realizing a detachable structure.

[0010] Furthermore, the shape of the mounting hole is adapted to the shape of the track limiting part. When the telescopic rod is inserted into the guide groove formed by the sliding track, the telescopic rod presses and engages the track limiting part in the mounting hole. When the telescopic rod is inserted into the guide groove formed by the sliding track, as the telescopic rod moves in the guide groove, the side of the telescopic rod can press the track limiting part, pressing and engaging the track limiting part in the mounting hole.

[0011] Furthermore, the hand crank handle also includes a first locking mechanism and a second locking mechanism; the first locking mechanism is disposed inside the sliding track along the length direction of the handle, and the second locking mechanism is disposed opposite to the first locking mechanism at one end of the telescopic rod. The first locking mechanism and the second locking mechanism can cooperate to lock the position of the telescopic rod in the handle. The first locking mechanism and the second locking mechanism can cooperate to lock the telescopic rod in its current position, thereby stabilizing the lever arm when the hand crank handle is turned and preventing the telescopic rod from moving during use.

[0012] Furthermore, the first locking mechanism includes locking grooves disposed on the inner side of the sliding track and spaced apart along the length of the sliding track; the second locking mechanism includes an elastic protrusion disposed at one end of the telescopic rod located inside the handle and capable of engaging with the locking grooves. Multiple locking grooves are disposed on the sliding track, and the elastic protrusion is disposed on the telescopic rod and capable of engaging with the locking grooves. As the telescopic rod moves, the elastic protrusion can engage with one of the locking grooves, fixing the telescopic rod in its current position. Because the elastic protrusion has a certain elasticity, the handle can disengage from the locking groove and continue to move after a certain external force is applied.

[0013] Furthermore, the limiting mechanism includes a limiting hole and a limiting member. The limiting hole is disposed on the side wall of the handle and extends along the extension direction of the handle. The limiting member is fixed to the telescopic rod and is slidably engaged within the limiting hole. The limiting hole is disposed on the side wall of the handle and extends along the extension direction of the handle. The limiting member is disposed on the telescopic rod, and slides synchronously within the limiting hole following the movement of the telescopic rod, limiting the range of motion of the telescopic rod, thereby confining one end of the telescopic rod within the handle and preventing the telescopic rod from being overstretched and detached from the handle.

[0014] Furthermore, the limiting hole is a strip-shaped through hole provided through the side wall of the handle; one end of the limiting member is detachably installed on the telescopic rod, and the other end protrudes from the limiting hole outside the handle. The strip-shaped through hole is located on the side wall of the handle, and one end of the limiting member is detachably installed on the telescopic rod, while the other end protrudes from the limiting hole outside the handle. The movement of the limiting member outside the handle allows the position of the telescopic rod to be determined, and the limiting member can be removed from the telescopic rod, thereby releasing the restriction on the telescopic rod and facilitating its removal from the handle for replacement.

[0015] This utility model also provides a hand-cranked clothes drying rack, including a clothes drying cord winder and the aforementioned hand crank.

[0016] In the clothes rack provided by this utility model, a hand crank is connected to the clothes rack drive. The handle of the hand crank is telescopic to change its length. By adjusting the length of the hand crank handle, the hand crank handle can be cranked without a large external force, thereby driving the clothes rack to move up and down.

[0017] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the hand crank handle in Example 1.

[0019] Figure 2 This is a schematic diagram of the installation of the handle and the sliding rail in Example 1.

[0020] Figure 3 This is a schematic diagram of the sliding track in Example 1.

[0021] Figure 4 This is a structural schematic diagram of the sliding track from another angle in Embodiment 1.

[0022] Figure 5 This is a schematic diagram of the telescopic rod in Example 1.

[0023] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0024] Figure 7 This is a schematic diagram of the hand crank in Example 2.

[0025] Figure 8 This is a schematic diagram of the clothes drying winder in Example 2. Detailed Implementation

[0026] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the embodiments of the present invention, and not all of the structures.

[0027] Furthermore, the terms "first," "second," "third," etc., used in the specification and claims are only for the purpose of distinguishing the description of the same technical features and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated, nor necessarily the order of description or chronological sequence. Where appropriate, the terms are interchangeable. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0028] Similarly, the terms "fixed" and "connected" are used in the specification and claims and should not be construed as limited to a direct connection. Therefore, the expression "device A is connected to device B" should not be limited to device A being directly connected to device B in a device or system; it means that there is a path between device A and device B, which can be a path that includes other devices or tools.

[0029] Example 1

[0030] This embodiment provides a hand crank handle. Figure 1 This is a structural diagram of the hand crank handle. Please refer to it. Figure 1 The hand crank handle includes a handle and a handle 4 that are connected to the main shaft of the clothes drying winder; the handle 1 is provided with a telescopic rod 2 that can be moved and extended along its length, and the telescopic rod 2 is connected to the handle 4; the handle 1 is also provided with a limiting mechanism 3 that restricts the movement of the telescopic rod 2.

[0031] This embodiment provides a hand crank handle. The handle 1 has a movable, extendable telescopic rod 2 along its length. The telescopic rod 2 is connected to a handle 4. By adjusting the extension distance of the telescopic rod 2 within the handle 1, the handle length of the hand crank is changed, facilitating adjustment of the lever arm length. The hand crank handle can be cranked without requiring significant external force. During use, extending the telescopic rod 2 lengthens the lever arm, achieving a labor-saving effect. A limiting mechanism 3 can confine one end of the telescopic rod 2 within the handle 1, preventing the telescopic rod 2 from being overstretched and detaching from the handle 1. In this embodiment, the hand crank handle allows for adjustment of the telescopic rod 2's length, thereby changing the lever arm and achieving a labor-saving effect.

[0032] Figure 2 This is a schematic diagram showing the installation of handle 1 and the sliding rail. Figure 3 This is a schematic diagram of the sliding track; please refer to it. Figure 2-3 In this embodiment, a sliding rail 5 is provided inside the handle 1, and the sliding rail 5 is arranged along the extension direction of the handle 1; one end of the telescopic rod 2 is located inside the handle 1 and slides in cooperation with the sliding rail 5, and the other end is located outside the handle 1 and connected to the handle 4. The telescopic rod 2 is movably arranged on the sliding rail 5, so that the telescopic rod 2 can move along the extension direction of the sliding rail 5. The sliding rail 5 restricts the movement trajectory of the telescopic rod 2, ensures the directionality of the lever arm, achieves the effect of saving effort, and avoids the telescopic rod 2 directly rubbing against the handle 1, which would cause scratches.

[0033] In this embodiment, the sliding track 5 includes a first track 51 and a second track 52 detachably mounted within the handle 1. The first track 51 and the second track 52 are arranged opposite to each other to form a guide groove 54 that matches the telescopic rod 2. The telescopic rod 2 is movably disposed within the guide groove 54. The first track 51 and the second track 52 are arranged opposite to each other to form the guide groove 54, and the telescopic rod 2 is movably disposed within the guide groove 54 to control the stability and directionality of the movement of the telescopic rod 2.

[0034] Figure 4 This is a structural schematic diagram of the sliding track from another angle in Embodiment 1. Please refer to [link / reference]. Figure 2-4 In this embodiment, a plurality of track mounting holes 15 are provided through the opposite sides of the handle 1; a track limiting part 53 is provided on the outer side of the first track 51 and the second track 52, and the track limiting part 53 is engaged with the track mounting hole 15. The first track 51 and the second track 52 are detachably engaged with the mounting hole 15 through the track limiting part 53, realizing a detachable structure.

[0035] In this embodiment, the shape of the mounting hole 15 is adapted to the shape of the track limiting part 53. When the telescopic rod 2 is inserted into the guide groove 54 formed by the sliding track 5, the telescopic rod 2 presses and engages the track limiting part in the mounting hole 15. When the telescopic rod 2 is inserted into the guide groove 54 formed by the sliding track 5, as the telescopic rod moves in the guide groove 54, the side of the telescopic rod 2 can press the track limiting part 53, pressing and engaging the track limiting part in the mounting hole 15.

[0036] Please see Figure 2 Specifically, the handle 1 includes a first sidewall 11, a second sidewall 12, a third sidewall 13, and a fourth sidewall 14, which together form a telescopic rod receiving cavity. The first sidewall 11 and the third sidewall 13 are positioned opposite each other, as are the second sidewall 12 and the fourth sidewall 14. Two guide rods 51 are positioned opposite each other on the first sidewall 11 and the third sidewall 13.

[0037] In another embodiment, the sliding track 5 includes a guide rod protruding inside the handle 1, the guide rod extending along the length of the handle 1 and disposed on the fourth side wall 14; the telescopic rod 2 is provided with a telescopic engagement groove on the side facing the fourth side wall 14, and the telescopic rod 2 is slidably engaged with the guide rod through the telescopic engagement groove.

[0038] Figure 5 This is a schematic diagram of the telescopic rod in Example 1. Figure 6 yes Figure 5 Please refer to the enlarged view at point A in the middle. Figure 3 , Figure 5-6 In this embodiment, the hand crank handle further includes a first locking mechanism 6 and a second locking mechanism 7. The first locking mechanism 6 is disposed inside the sliding track 5 along the length direction of the handle 1, and the second locking mechanism 7 is disposed opposite to the first locking mechanism 6 at one end of the telescopic rod 2. The first locking mechanism 6 and the second locking mechanism 7 can cooperate to lock the position of the telescopic rod in the handle. The first locking mechanism 6 and the second locking mechanism 7 can cooperate to lock the telescopic rod 2 in the current position, so that the lever arm is stable when the hand crank handle is turned, and the telescopic rod 2 is prevented from moving during use.

[0039] Please see Figure 3 , Figure 5-6In this embodiment, the first locking mechanism 6 includes locking grooves 61 disposed inside the sliding track 5 and spaced apart along the length of the sliding track 5; the second locking mechanism 7 includes an elastic protrusion 71 disposed at one end of the telescopic rod 2 located inside the handle 1 and capable of engaging with the locking grooves 61. Multiple locking grooves 61 are disposed on the sliding track 5, and the elastic protrusion 71 is disposed on the telescopic rod 2 and can engage with the locking grooves 61. As the telescopic rod 2 moves, the elastic protrusion 71 can engage with one of the locking grooves 61, fixing the telescopic rod 2 in its current position. Because the elastic protrusion 71 has a certain elasticity, after applying a certain external force, the handle 1 can disengage from the locking groove 61 and continue to move.

[0040] Please see Figure 3 , Figure 5-6 In this embodiment, the locking groove 61 is located within the engaging groove 52 of the sliding rail 5, and there are two elastic protrusions 71, which are positioned opposite each other at the end of the telescopic rod 2 located within the handle 1. A spring plate mounting hole 21 is provided at the end of the telescopic rod 2 located within the receiving groove. The elastic protrusion 71 includes a spring plate 711 and an engaging protrusion 712. The spring plate 711 extends along the length of the telescopic rod 2, with one end fixed within the spring plate mounting hole 21 and the other end connected to the engaging protrusion 712. When the telescopic rod 2 moves, the engaging protrusion 712 can engage within one of the locking grooves 61. After applying a certain external force, the engaging protrusion 712 disengages from the locking groove 61 under the action of the spring plate 711, leaving space in the spring plate mounting hole 21 for the movement of the engaging protrusion 712 and the spring plate 711.

[0041] Please see Figure 1-2 In this embodiment, the limiting mechanism 3 includes a limiting hole 31 and a limiting member 32. The limiting hole 31 is disposed on the side wall of the handle 1 and extends along the extension direction of the handle 1. The limiting member 32 is fixed to the telescopic rod 2 and can be slidably engaged in the limiting hole 31. The limiting hole 31 is disposed on the side wall of the handle 1 and extends along the extension direction of the handle 1. The limiting member 32 is disposed on the telescopic rod 2. The limiting member 32 slides synchronously in the limiting hole 31 with the movement of the telescopic rod 2, limiting the range of movement of the telescopic rod 2, thereby limiting one end of the telescopic rod 2 to be contained in the handle 1 and preventing the telescopic rod 2 from being overstretched and detached from the handle 1.

[0042] In one embodiment, the length of the limiting hole 31 is not greater than the length of the sliding track 5.

[0043] In this embodiment, the first track 51 and the second track 52 are disposed opposite to the first side wall 11 and the third side wall 13 of the handle 1, and the limiting hole 31 is disposed on the second side wall 12. The limiting hole 31 is strip-shaped.

[0044] In another embodiment, the first track 51 and the second track 52 are disposed opposite to each other on the first side wall 11 and the third side wall 13 of the handle 1. There are two limiting holes 31, which are strip-shaped and are respectively disposed on the first side wall 11 and the third side wall 13. There are two limiting members 32, which are respectively disposed on both sides of the telescopic rod 2 and are slidably engaged in the two limiting holes 31.

[0045] Please see Figure 1-2 In this embodiment, the limiting hole 31 is a strip-shaped through hole provided through the side wall of the handle 1; one end of the limiting member 32 is detachably installed on the telescopic rod 2, and the other end protrudes from the limiting hole 31 outside the handle 1. The strip-shaped through hole is provided on the side wall of the handle 1, and one end of the limiting member 32 is detachably installed on the telescopic rod 2, while the other end protrudes from the limiting hole 31 outside the handle 1. The movement position of the telescopic rod 2 can be determined from outside the handle 1 based on the movement of the limiting member 32, and the limiting member 32 can be removed from the telescopic rod 2, thereby releasing the restriction on the telescopic rod 2 and facilitating the removal and replacement of the telescopic rod 2 from the handle 1.

[0046] In one embodiment, the limiting member 32 is a rivet, and the telescopic rod 2 has a rivet mounting hole. The rivet includes a connecting section and a cap end connected to the connecting section. The connecting section is installed in the rivet mounting hole, and the cap end passes through the limiting hole 31 and out of the handle 1.

[0047] Example 2

[0048] This embodiment provides a hand-cranked clothes drying rack. Figure 7 This is a structural diagram of a clothes drying rack. Please refer to it. Figure 7 It includes a clothes drying cord winder 8 and a hand crank handle from Example 1.

[0049] In the hand-cranked clothes drying rack provided in this embodiment, the handle 1 of the hand crank is connected to the main shaft of the clothes drying winder 8; the clothes drying winder is connected to the clothes drying rack drive. The hand crank is connected to the clothes drying rack drive, and the handle of the hand crank can be extended and retracted to change its length. By adjusting the length of the hand crank, the handle of the hand crank can be cranked without a large external force to drive the clothes drying rack to move up and down.

[0050] Figure 8 This is a structural schematic diagram of the clothes drying cord winder in Example 2. Please refer to it. Figure 7-8 In this embodiment, the clothes drying winder 8 includes a winding shell 81 and a main shaft 82. The winding shell 81 has a first through hole, and the main shaft 82 is disposed inside the winding shell 81 and extends out through the first through hole. The end of the handle 1 away from the handle 4 is fixed to the main shaft 82. The handle 1 is connected to the main shaft 82 of the clothes drying winder 8 via the main shaft 82, thereby driving the clothes drying winder 8 to rotate.

[0051] In this embodiment, the winding shell 81 is provided with a mounting base 83, and a first through hole is provided in the mounting base 83; the end of the handle 1 away from the handle 4 is provided with a connecting part 17, the connecting part 17 is provided with a connecting groove, and a second through hole 18 is provided in the connecting groove. The second through hole 18 is corresponding to the position of the first through hole. The connecting part 17 can be fitted into the mounting base through the connecting groove, and the spindle 82 passes through the second through hole 18.

[0052] This utility model is not limited to the above-described embodiments. If any modifications or variations to this utility model do not depart from the spirit and scope of this utility model, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this utility model, then this utility model also intends to include such modifications and variations.

Claims

1. A hand-operated device, comprising: a handle and a grip connected to a main shaft of a clothesline reel; a telescopic rod movably arranged along a length direction of the handle and connected to the grip; and a limiting mechanism arranged on the handle to limit movement of the telescopic rod.

2. The hand-operated device according to claim 1, wherein: a sliding track is arranged in the handle and extends along a length direction of the handle; one end of the telescopic rod is arranged in the handle and slidably connected to the sliding track, and the other end of the telescopic rod is arranged outside the handle and connected to the grip.

3. The hand-operated device according to claim 2, wherein: the sliding track comprises a first track and a second track which are detachably arranged in the handle, and the first track and the second track are oppositely arranged to form a guide groove matched with the telescopic rod, and the telescopic rod is movably arranged in the guide groove.

4. The hand-operated device according to claim 3, wherein: a plurality of mounting holes are arranged on opposite sides of the handle.

5. The hand-operated device according to claim 4, wherein: the mounting holes are shaped to match the shape of the track limiting part, and when the telescopic rod is inserted into the guide groove formed by the sliding track, the telescopic rod presses the track limiting part to be tightly engaged in the mounting hole.

6. The hand-operated device according to claim 2, further comprising: a first locking mechanism arranged on an inner side of the sliding track along a length direction of the handle, and a second locking mechanism arranged on one end of the telescopic rod opposite to the first locking mechanism, and the first locking mechanism and the second locking mechanism cooperate to lock the position of the telescopic rod in the handle.

7. The hand-operated device according to claim 5, wherein: the first locking mechanism comprises a plurality of locking grooves arranged on an inner side of the sliding track along a length direction of the sliding track; and the second locking mechanism comprises a plurality of elastic protrusions arranged on one end of the telescopic rod arranged in the handle and capable of being engaged in the locking grooves.

8. The hand-operated device according to any one of claims 2-7, wherein: the limiting mechanism comprises a limiting hole arranged on a side wall of the handle and extending along a length direction of the handle, and a limiting member fixed to the telescopic rod and slidably engaged in the limiting hole.

9. The hand-operated device according to claim 8, wherein: the limiting hole is a strip-shaped through hole arranged on the side wall of the handle; and one end of the limiting member is detachably arranged on the telescopic rod, and the other end of the limiting member passes through the limiting hole and is arranged outside the handle.

10. A hand-operated clothesline, comprising: a clothesline reel and the hand-operated device according to any one of claims 1-9. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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