Locking mechanism and clothes airing machine

Abstract

The embodiment of the utility model discloses a locking mechanism and a clothes airing machine, and relates to but is not limited to a clothes airing technology. The locking mechanism comprises a ratchet wheel, a first rope and a pawl. The ratchet wheel is provided with a plurality of ratchets. The pawl comprises a first end, a second end and a second rotating shaft. And the first end part can rotate around the second rotating shaft to one side far away from the rotating path of the ratchets under the action of external force, and the second end part moves into the rotating path and is propped against the ratchets, so that the second end part can always approach the ratchet wheel under the action of external force, and the matching precision between the second end part and the ratchets is ensured. When the driving rope is broken, the first rope is driven by the clothes hanger to quickly increase the extension amount of the first rope extending out of the ratchet wheel, at the moment, the driving force of the ratchets to the second end enables the ratchets to be separated from the second end, and the first end moves into the rotating path and is clamped with the ratchets, so that the first rope is prevented from continuously increasing the extension amount of the first rope extending out of the ratchet wheel; the first rope tightens and tensions the clothes hanger, so that the clothes hanger is prevented from falling.

Description

Technical Field

[0001] The present disclosure relates to, but is not limited to, clothes drying technology, and in particular to a locking mechanism and a clothes drying machine. Background Art

[0002] With the increasing intelligence and convenience of modern home life, clothes drying racks have become widely popular due to their convenience and practicality. However, with their increasing popularity, their safety has also gradually attracted attention. In particular, the drive cord that controls the raising and lowering of clothes drying racks can break due to various reasons (such as wear, aging, overload, etc.), causing the clothes drying rack to suddenly fall, potentially causing personal injury to family members or property damage. Utility Model Content

[0003] The present disclosure provides a locking mechanism and a clothes drying rack, which are intended to solve the technical problem that a driving rope in an existing clothes drying rack breaks, causing the clothes drying rack to suddenly fall.

[0004] The present disclosure provides a locking mechanism, comprising:

[0005] A ratchet wheel having a first rotating shaft, wherein the ratchet wheel is provided with a plurality of ratchet teeth arranged around the first rotating shaft, and the plurality of ratchet teeth are inclined in a clockwise direction or a counterclockwise direction relative to the radial direction of the ratchet wheel;

[0006] a first rope wound around the circumferential outer side of the ratchet in a clockwise or counterclockwise direction matching the inclination direction of the ratchet teeth, the first rope being configured to drive the ratchet to rotate and change the extension amount from the ratchet; and

[0007] a pawl comprising a first end, a second end, and a second rotating shaft, wherein the first end, the second rotating shaft, and the second end are sequentially arranged in a clockwise direction or a counterclockwise direction matching the tilting direction;

[0008] The first end portion is configured to be able to rotate around the second rotation axis toward a side away from the rotation path of the ratchet under the action of an external force, so that the second end portion moves into the rotation path and abuts against the ratchet;

[0009] During the rotation of the ratchet wheel, the second end portion can periodically move closer to or farther from the first rotation axis around the second rotation axis under the action of the external force and the drive of the plurality of ratchets;

[0010] During the process of the ratchet rotating in a clockwise direction or counterclockwise direction matching the tilting direction, when the driving force of the ratchet on the second end causes the ratchet to separate from the second end and the first end to move into the rotation path, the first end can be engaged with the ratchet.

[0011] In some embodiments of the locking mechanism, the ratchet includes a first driving surface and a second driving surface, the first driving surface is located on a side of the ratchet close to the tilting direction, and the second driving surface is located on a side of the ratchet away from the tilting direction, and an inclination angle of the first driving surface relative to the radial direction of the ratchet is smaller than an inclination angle of the second driving surface relative to the radial direction of the ratchet;

[0012] During the rotation of the ratchet in a clockwise direction or a counterclockwise direction, one of the first drive surface and the second drive surface can drive the second end portion.

[0013] In some embodiments of the locking mechanism, the ratchet further includes a first arc surface, which is located on a side of the ratchet facing the pawl and connected between the first driving surface and the second driving surface.

[0014] In some embodiments of the locking mechanism, a clamping surface is provided on a side of the first end away from the second rotating shaft, and the clamping surface matches the first driving surface.

[0015] In some embodiments of the locking mechanism, the inclination angle of the first driving surface relative to the radial direction of the ratchet is 0° or the first driving surface is inclined toward one side of the inclination direction.

[0016] In some embodiments of the locking mechanism, the first end portion includes a first connecting section and a first free end, the first connecting section is connected between the second rotating shaft and the first free end, the first free end is inclined from the first connecting section toward the ratchet side, and the locking surface is arranged on the first free end.

[0017] In some embodiments of the locking mechanism, a first protrusion is provided on a side of the first free end facing the ratchet, and the engaging surface extends to the first protrusion.

[0018] In some embodiments of the locking mechanism, a second arc surface is provided on a side of the second end away from the second rotating shaft.

[0019] In some embodiments of the locking mechanism, the second end portion includes a second connecting section and a second free end, the second connecting section is connected between the second rotating shaft and the second free end, the second arc surface is arranged at the second free end, and a second protrusion is provided on the side of the second connecting section facing the ratchet.

[0020] In some embodiments of the locking mechanism, the locking mechanism further comprises a housing, and the ratchet is rotationally connected to the housing via the first rotating shaft;

[0021] The pawl is rotatably connected to the housing via the second rotating shaft;

[0022] The housing is provided with an anti-wear component, the anti-wear component has a through hole, and the free end of the first rope is passed through the through hole.

[0023] In some embodiments of the locking mechanism, the locking mechanism further comprises a clockwork spring, wherein one end of the clockwork spring is fixed and the other end is connected to the ratchet;

[0024] When the first rope drives the ratchet wheel to rotate, the clockwork spring can generate a driving force to drive the ratchet wheel to rotate and reset.

[0025] The present disclosure also provides a clothes drying machine, comprising:

[0026] Host;

[0027] clothes drying rack;

[0028] a second rope, disposed between the main unit and the clothes drying rack, wherein the second rope is configured to control the height of the clothes drying rack relative to the main unit by changing the amount of extension of the second rope from the main unit; and

[0029] As described above, the locking mechanism is provided on one of the main unit or the clothes drying rack, and the free end of the first rope of the locking mechanism is connected to the other one of the main unit or the clothes drying rack.

[0030] Implementing the embodiments of the present disclosure will have the following beneficial effects:

[0031] The locking mechanism described above, when used in a clothes drying rack, prevents the second rope (drive rope) controlling the height of the clothes drying rack relative to the main unit from breaking, potentially causing the rack to fall. Specifically, the locking mechanism comprises a ratchet, a first rope, and a pawl. The ratchet is equipped with multiple teeth that are tilted clockwise or counterclockwise relative to the ratchet's radial direction. The first rope drives the ratchet to rotate, varying the amount of extension from the ratchet. The pawl comprises a first end, a second end, and a second rotating shaft, arranged in a clockwise or counterclockwise direction that matches the tilt. The first end is configured to be able to rotate around the second rotating axis to the side of the rotation path away from the ratchet under the action of external force, and to make the second end move into the rotation path and abut against the ratchet. In this way, under the action of external force, the second end can always lean against the ratchet, ensuring the matching accuracy between the second end and the multiple ratchets. Furthermore, during the rotation of the ratchet, the second end can slide along the contour formed by the multiple ratchets, periodically approaching or moving away from the first rotating axis around the second rotating axis to ensure the smooth rotation of the ratchet and avoid interfering with the second rope controlling the height of the clothes drying rack relative to the main unit. During the process of the ratchet rotating in a clockwise or counterclockwise direction matching the tilting direction, when the driving force of the ratchet on the second end causes the ratchet to separate from the second end and the first end to move into the rotation path (for example, the second rope breaks, and the first rope drives the ratchet to suddenly accelerate under the drive of the clothes drying rack, causing multiple ratchets to hit the second end, thereby causing the pawl to rotate faster, resulting in the ratchet to separate from the second end and the first end to move into the rotation path), the first end can be engaged with the ratchet to prevent the first rope from continuing to increase the amount of extension from the ratchet, and the first rope is tightened and pulls the clothes drying rack, thereby preventing the clothes drying rack from falling.

[0032] Other features and advantages of the present disclosure will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present disclosure. Other advantages of the present disclosure can be realized and obtained through the solutions described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide an understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation to the technical solution of the present disclosure.

[0034] Figure 1 This is a structural diagram of a clothes drying machine in one embodiment of the present disclosure;

[0035] Figure 2 Schematic diagram of the assembly of the connecting member and the locking mechanism in the clothes drying machine according to one embodiment of the present disclosure;

[0036] Figure 3 Schematic diagram of the exploded structure of the locking mechanism in the clothes drying machine according to one embodiment of the present disclosure;

[0037] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the middle part A;

[0038] Figure 5 Schematic diagram of the internal assembly of the locking mechanism of the clothes drying machine in one embodiment of the present disclosure, wherein the pawl is located below the ratchet wheel;

[0039] Figure 6 Schematic diagram of the internal assembly of the locking mechanism of the clothes drying machine in one embodiment of the present disclosure, wherein the pawl is located above the ratchet wheel;

[0040] Figure 7 is a cross-sectional view of a locking mechanism in a clothes drying machine according to an embodiment of the present disclosure;

[0041] Figure 8 Schematic diagram of the positional relationship between the ratchet and the pawl in a clothes drying machine according to an embodiment of the present disclosure, wherein one of the ratchet teeth is in contact with the second protrusion;

[0042] Figure 9 Schematic diagram of the positional relationship between the ratchet and the pawl in a clothes drying machine according to an embodiment of the present disclosure, wherein one of the ratchet teeth is in contact with the first free end;

[0043] Figure 10 Schematic diagram of the positional relationship between the ratchet and the pawl in a clothes drying machine according to an embodiment of the present disclosure, wherein one of the ratchets is in a position engaged with the first end.

[0044] Description of Figure Numbers:

[0045] 10. Main unit; 20. Clothes drying rack; 30. Second rope; 40. Locking mechanism; 41. Ratchet; 411. First rotating shaft; 412. Ratchet; 4121. First driving surface; 4122. Second driving surface; 4123. First arc surface; 413. Ratchet surface; 42. First rope; 43. Ratchet; 431. First end; 4311. First connecting section; 4312. First free end; 4313. First protrusion; 432. Second end; 4321. Second arc surface; 4 322. Second connecting section; 4323. Second free end; 4324. Second protrusion; 433. Second rotating shaft; 434. Snap-fit ​​surface; 44. Housing; 441. First shell; 442. Second shell; 45. First connecting shaft; 46. Second connecting shaft; 47. Anti-wear part; 50. Connecting part; 51. First plate; 511. Plug interface; 52. Second plate; 60. Scissors frame mechanism; 70. Clockwork spring; 100. Wire trough; 200. Plug slot; 300. Connecting slot.

[0046] The realization of the objectives, functional features and advantages of the present disclosure will be further explained with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0047] The present disclosure describes a plurality of embodiments, but this description is exemplary rather than restrictive, and it will be apparent to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present disclosure. Although many possible feature combinations are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0048] The present disclosure includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The disclosed embodiments, features, and elements of the present disclosure may also be combined with any conventional features or elements to form a unique inventive solution defined by the claims. Any features or elements of any embodiment may also be combined with features or elements from other inventive solutions to form another unique inventive solution defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in this disclosure may be implemented individually or in any appropriate combination. Therefore, the embodiments are not subject to other limitations except for the limitations set forth in the appended claims and their equivalents. In addition, various modifications and changes may be made within the scope of protection of the appended claims.

[0049] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described in the present disclosure, the method or process should not be limited to the steps in the specific order described. As will be understood by those skilled in the art, other orders of steps are also possible. Therefore, the specific order of the steps set forth in the specification should not be interpreted as a limitation on the claims. In addition, the claims to the method and / or process should not be limited to performing their steps in the order written, and those skilled in the art can readily understand that these orders can be changed and still remain within the spirit and scope of the embodiments of the present disclosure.

[0050] With the increasing intelligence and convenience of modern home life, clothes drying racks have become widely popular due to their convenience and practicality. However, with their increasing popularity, their safety has also gradually attracted attention. In particular, the drive cord that controls the raising and lowering of clothes drying racks can break due to various reasons (such as wear, aging, overload, etc.), causing the clothes drying rack to suddenly fall, potentially causing personal injury to family members or property damage.

[0051] To solve the above technical problems, the present disclosure provides a clothes drying machine. The clothes drying machine can be installed in various environments such as schools, homes, and factories to dry and store clothes.

[0052] Please combine Figure 1 and Figure 2 The clothes drying machine provided by an embodiment of the present disclosure will now be described. The clothes drying machine includes a main unit 10, a clothes drying rack 20, a second rope 30, and a locking mechanism 40. The clothes drying rack 20 is mounted on the main unit 10 and is configured to be raised or lowered relative to the main unit 10 to change the height of the clothes drying rack 20. This allows the user to place clothes on the clothes drying rack 20 when the clothes drying rack 20 is at a low position, and then raise the clothes drying rack 20 to a drying height to facilitate drying of the clothes. The second rope 30 is disposed between the main unit 10 and the clothes drying rack 20. The second rope 30 is configured to control the height of the clothes drying rack 20 relative to the main unit 10 by varying the amount of extension from the main unit 10. The second rope 30 can be driven by a manual mechanical device or an electric mechanical device to control the height of the clothes drying rack 20 relative to the main unit 10 by varying the amount of extension from the main unit 10. A locking mechanism 40 is mounted on either the main unit 10 or the clothes drying rack 20. The free end of the first cord 42 of the locking mechanism 40 is connected to the other of the main unit 10 or clothes drying rack 20. The locking mechanism 40 can be mounted on either the main unit 10 or clothes drying rack 20 via a connector 50, facilitating quick installation and adaptability to different models of existing clothes drying machines. In the disclosed embodiment, the locking mechanism 40 is mounted on the main unit 10 via the connector 50. The connector 50 includes a first plate 51 connected to the end of the main unit 10 and a second plate 52 connected to the first plate 51. The first plate 51 and the second plate 52 form a predetermined angle, such as approximately 90°, to enhance the stability of the connection between the locking mechanism 40 and the main unit 10. The second plate 52 can be mounted on the ceiling along with the main unit 10, ensuring the load-bearing capacity of the locking mechanism 40. A scissor frame mechanism 60 is connected between the main unit 10 and the clothes drying rack 20. The scissor rack mechanism 60 has a telescopic function, capable of varying the amount of telescoping during the movement of the clothes drying rack 20 relative to the main unit 10. The scissor rack mechanism 60 can include multiple sequentially connected scissor racks. Each scissor rack comprises two straight rods hinged at the center, with the ends of the straight rods hinged to the ends of adjacent straight rods.

[0053] The first rope 42 is connected between the main unit 10 and the scissors frame mechanism 60 and the bracket of the clothes drying rack 20. The locking mechanism 40 is provided on the main unit 10, and the second rope 30 extends from the locking mechanism 40 and is connected to the bracket.

[0054] Please combine Figures 3 to 7The locking mechanism 40 includes a ratchet 41, a first rope 42, and a pawl 43. The ratchet 41 has a first rotating shaft 411. The ratchet 41 is provided with a plurality of ratchet teeth 412 arranged around the first rotating shaft 411. The plurality of ratchet teeth 412 are inclined in a clockwise or counterclockwise direction relative to the radial direction of the ratchet 41. In the embodiment of the present disclosure, the plurality of ratchet teeth 412 are inclined in a counterclockwise direction relative to the radial direction of the ratchet 41.

[0055] The first rope 42 is wound around the outer circumference of the ratchet 41 in a clockwise or counterclockwise direction that matches the inclination of the ratchet teeth 412. In the disclosed embodiment, the first rope 42 is wound around the outer circumference of the ratchet 41 in a counterclockwise direction. The first rope 42 is configured to drive the ratchet 41 to rotate, thereby varying the amount of extension from the ratchet 41. The first rope 42 utilizes friction between the first rope 42 and the ratchet 41 to drive the rotation of the ratchet 41.

[0056] The pawl 43 includes a first end 431, a second end 432, and a second rotation axis 433. The first end 431, the second rotation axis 433, and the second end 432 are arranged in a clockwise or counterclockwise direction corresponding to the tilt direction. In the disclosed embodiment, the first end 431, the second rotation axis 433, and the second end 432 are arranged in a counterclockwise direction.

[0057] The first end portion 431 is configured to be able to rotate around the second rotation axis 433 to the side of the rotation path away from the ratchet 412 under the action of an external force, and to make the second end portion 432 move into the rotation path and abut against the ratchet 412. The external force can be the gravity exerted on the pawl 43, that is, the difference in mass between the first end portion 431 and the second end portion 432 can be used to control the rotation of the pawl 43 around the second rotation axis 433. In the embodiment of the present disclosure, the locking mechanism 40 is provided on the main unit 10, and the pawl 43 is located below the ratchet 41. At this time, the mass of the first end portion 431 can be set to be greater than the mass of the second end portion 432, so that the first end portion 431 moves downward and the second end portion 432 moves upward to abut against the ratchet 412. Figure 5 In other embodiments, the locking mechanism 40 is provided on the clothes drying rack 20, and the pawl 43 is located above the ratchet 41. In this case, the mass of the first end 431 can be set to be smaller than the mass of the second end 432, so that the first end 431 moves upward and the second end 432 moves downward to abut against the ratchet 412, as shown in FIG. Figure 6 It can be understood that in other embodiments, the external force can also be generated by a mechanical structure and act on the pawl 43, so that the second end 432 moves into the rotation path and abuts against the ratchet 412. For example, the mechanical structure can be a spring structure.

[0058] During the rotation of the ratchet 41, the second end portion 432 can periodically move closer to or farther from the first rotation axis 411 around the second rotation axis 433 under the action of an external force and the drive of the plurality of ratchet teeth 412. Figure 8 and Figure 9 During the process of the ratchet 41 rotating in a clockwise or counterclockwise direction matching the tilting direction, when the driving force of the ratchet teeth 412 on the second end portion 432 causes the ratchet teeth 412 to separate from the second end portion 432 and the first end portion 431 to move into the rotation path, the first end portion 431 can engage with the ratchet teeth 412. In the embodiment of the present disclosure, the plurality of ratchet teeth 412 are inclined counterclockwise relative to the radial direction of the ratchet wheel 41, so that during the process of the ratchet wheel 41 rotating in the counterclockwise direction (driven by the first rope 42), when the driving force of the ratchet teeth 412 on the second end portion 432 causes the ratchet teeth 412 to separate from the second end portion 432 and the first end portion 431 to move into the rotation path (for example, the second rope 30 breaks, and the first rope 42 drives the ratchet wheel 41 to suddenly accelerate its rotation under the drive of the clothes drying rack 20, so that the plurality of ratchet teeth 412 hit the second end portion 432, thereby causing the pawl 43 to rotate faster, causing the ratchet teeth 412 to separate from the second end portion 432 and the first end portion 431 to move into the rotation path), the first end portion 431 can be engaged with the ratchet teeth 412, as shown in FIG. Figure 10 shown.

[0059] In summary, the implementation of the disclosed embodiments provides the following beneficial effects: The locking mechanism 40 described above, when used in a clothes drying rack, can prevent the second cord 30 (drive cord) controlling the height of the clothes drying rack 20 relative to the main unit 10 from breaking, potentially causing the clothes drying rack 20 to suddenly fall. Specifically, the locking mechanism 40 comprises a ratchet 41, a first cord 42, and a pawl 43. The ratchet 41 is provided with a plurality of ratchet teeth 412 that are tilted clockwise or counterclockwise relative to the radial direction of the ratchet 41. The first cord 42 drives the ratchet 41 to rotate, varying the amount of extension from the ratchet 41. The pawl 43 comprises a first end 431, a second end 432, and a second rotating shaft 433, arranged in a clockwise or counterclockwise direction that matches the tilt. The first end portion 431 is configured to be able to rotate around the second rotating shaft 433 to the side of the rotating path away from the ratchet teeth 412 under the action of an external force, and to make the second end portion 432 move into the rotating path and abut against the ratchet teeth 412. In this way, under the action of an external force, the second end portion 432 can always lean against the ratchet 41, ensuring the matching accuracy between the second end portion 432 and the multiple ratchet teeth 412, and then during the rotation of the ratchet 41, the second end portion 432 can slide along the contour formed by the multiple ratchet teeth 412, periodically approaching or moving away from the first rotating shaft 411 around the second rotating shaft 433, so as to ensure the smooth rotation of the ratchet 41 and avoid interfering with the second rope 30 controlling the height of the clothes drying rack 20 relative to the main unit 10. During the process of the ratchet 41 rotating in a clockwise or counterclockwise direction matching the tilting direction, when the driving force of the ratchet 412 on the second end 432 causes the ratchet 412 to separate from the second end 432 and the first end 431 to move into the rotation path (for example, the second rope 30 breaks, and the first rope 42 drives the ratchet 41 to suddenly accelerate under the drive of the clothes drying rack 20, causing multiple ratchet teeth 412 to hit the second end 432, thereby causing the pawl 43 to rotate faster, resulting in the ratchet 412 separating from the second end 432 and the first end 431 moving into the rotation path), the first end 431 can move into the rotation path and engage with the ratchet 412 to prevent the first rope 42 from continuing to increase the amount of extension from the ratchet 41. The first rope 42 is tightened and pulls the clothes drying rack 20, thereby preventing the clothes drying rack 20 from falling.

[0060] In the exemplary embodiment, please combine Figure 4 、 Figures 8 to 10 The ratchet 412 includes a first drive surface 4121 and a second drive surface 4122. The first drive surface 4121 is located on the side of the ratchet 412 closer to the tilting direction. The second drive surface 4122 is located on the side of the ratchet 412 farther from the tilting direction. In the disclosed embodiment, the tilting direction is a direction tilted counterclockwise relative to the radial direction of the ratchet 41. Therefore, the second drive surface 4122 and the first drive surface 4121 are arranged in sequence along the counterclockwise direction.

[0061] The radial inclination angle of the first driving surface 4121 relative to the ratchet 41 is smaller than the radial inclination angle of the second driving surface 4122 relative to the ratchet 41, so that the entire ratchet 412 is inclined toward the first driving surface 4121, that is, in the embodiment of the present disclosure, the entire ratchet 412 is inclined counterclockwise.

[0062] In the embodiment of the present disclosure, the first drive surface 4121 and the second drive surface 4122 are both planar structures parallel to the first rotating shaft 411. It can be understood that in other embodiments, the first drive surface 4121 and the second drive surface 4122 can also be a curved surface structure, a wavy surface structure, or a multi-plane connected structure. At this time, the radial inclination angle of the first drive surface 4121 relative to the ratchet 41 refers to the radial inclination angle of the line connecting the side of the first drive surface 4121 close to the first rotating shaft 411 and the side away from the first rotating shaft 411 relative to the ratchet 41. The radial inclination angle of the second drive surface 4122 relative to the ratchet 41 refers to the radial inclination angle of the line connecting the side of the second drive surface 4122 close to the first rotating shaft 411 and the side away from the first rotating shaft 411 relative to the ratchet 41.

[0063] When the ratchet 41 rotates clockwise or counterclockwise, one of the first drive surface 4121 and the second drive surface 4122 can drive the second end 432. In the disclosed embodiment, when the ratchet 41 rotates clockwise, the second drive surface 4122 can drive the second end 432. When the ratchet 41 rotates counterclockwise, the first drive surface 4121 can drive the second end 432.

[0064] In the example embodiment, please continue to see Figure 4 、 Figures 8 to 10 The ratchet 412 further includes a first arc surface 4123, which is located on the side of the ratchet 412 facing the pawl 43 and connected between the first driving surface 4121 and the second driving surface 4122. The provision of the first arc surface 4123 allows the ratchet 412 to drive the second end 432 more smoothly, thus preventing the occurrence of a jam.

[0065] In the example embodiment, please continue to see Figure 4 、 Figures 8 to 10A snap-fit ​​surface 434 is provided on the side of the first end portion 431 away from the second rotating shaft 433, and the snap-fit ​​surface 434 matches the first driving surface 4121. For example, the snap-fit ​​surface 434 can be completely in contact with the first driving surface 4121, or it can be partially in contact with the first driving surface 4121, ensuring that there is a large connection surface area between the snap-fit ​​surface 434 and the first driving surface 4121. In this way, the provision of the snap-fit ​​surface 434 can improve the snap-fit ​​stability between the first end portion 431 and the ratchet 412, improve the locking performance of the locking mechanism 40, and thereby improve the safety of the clothes drying machine, preventing the clothes drying rack 20 from falling suddenly. In the embodiment of the present disclosure, the first driving surface 4121 is a planar structure. The snap-fit ​​surface 434 is a planar structure that matches the first driving surface 4121.

[0066] In the example embodiment, please continue to see Figure 4 、 Figures 8 to 10 The first driving surface 4121 is tilted at an angle of 0° relative to the radial direction of the ratchet 41, or the first driving surface 4121 is tilted toward one side of the tilt direction. This ensures that after the first driving surface 4121 is engaged with the engaging surface 434, the force exerted by the first driving surface 4121 on the engaging surface 434 can prevent the first end portion 431 from moving away from the ratchet 41, thereby further improving the engagement stability between the first end portion 431 and the ratchet teeth 412.

[0067] In the example embodiment, please continue to see Figure 4 、 Figures 8 to 10 The first end portion 431 includes a first connecting section 4311 and a first free end 4312. The first connecting section 4311 is connected between the second rotating shaft 433 and the first free end 4312. The first free end 4312 is inclined from the first connecting section 4311 toward the ratchet 41. This improves the structural stability of the first end portion 431 and prevents deformation or even breakage of the first end portion 431 during the engagement between the engaging surface 434 and the first driving surface 4121. The engaging surface 434 is provided at the first free end 4312.

[0068] In an exemplary embodiment, as Figure 4 As shown, a first protrusion 4313 is provided on the side of the first free end 4312 facing the ratchet 41, and the clamping surface 434 extends to the first protrusion 4313. This can improve the strength of the first free end 4312, increase the connection surface area between the clamping surface 434 and the first driving surface 4121, and improve the clamping stability between the first end 431 and the ratchet 412.

[0069] In the exemplary embodiment, please combine Figure 4 、 Figures 8 to 10 A second arc surface 4321 is provided on a side of the second end portion 432 away from the second rotation axis 433 .

[0070] The second end portion 432 includes a second connecting section 4322 and a second free end 4323. The second connecting section 4322 is connected between the second rotating shaft 433 and the second free end 4323. The second arc surface 4321 is provided at the second free end 4323. The second connecting section 4322 is provided with a second protrusion 4324 on the side facing the ratchet 41. In this way, the provision of the second protrusion 4324 can improve the structural stability of the second connecting section 4322, and prevent the second end portion 432 from being deformed or even broken during the sliding process of the second end portion 432 relative to the multiple ratchet teeth 412. In addition, the provision of the second protrusion 4324 can also abut against the ratchet teeth 412, preventing the second arc surface 4321 from being too close to the first rotating shaft 411, resulting in a stuck phenomenon, and can utilize the second arc surface 4321 to improve the smoothness of the sliding of the second end portion 432 relative to the multiple ratchet teeth 412. Figure 8 As shown, during the clockwise rotation of the ratchet 41, the abutment between the second protrusion 4324 and the ratchet teeth 412 can prevent the second arc surface 4321 from being too close to the first rotating shaft 411, thereby ensuring that the ratchet 41 can rotate smoothly in the clockwise direction.

[0071] In this disclosure, please combine Figure 4 、 Figures 7 to 10 There are two ratchet pawls 43, which are spaced apart along the second rotating shaft 433. The ratchet 41 has two ratchet surfaces 413 spaced apart along the first rotating shaft 411. Each ratchet surface 413 has a plurality of ratchet teeth 412 arranged around the first rotating shaft 411 and corresponding one-to-one to the two ratchet pawls 43. There is a gap between the two ratchet surfaces 413, and a wire groove 100 can be formed on the circumferential outer side of the ratchet 41. The first rope 42 is accommodated in the wire groove 100. The provision of the wire groove 100 can improve the stability of the first rope 42 wrapped around the ratchet 41, thereby improving the stability of the first rope 42 driving the ratchet 41 to rotate.

[0072] In the exemplary embodiment, please combine Figure 2 、 Figure 3 、 Figures 5 to 7The locking mechanism 40 also includes a housing 44, with the ratchet 41 rotatably connected to the housing 44 via a first rotating shaft 411. The pawl 43 is rotatably connected to the housing 44 via a second rotating shaft 433. The provision of the housing 44 facilitates the overall installation of the locking mechanism 40, improving assembly efficiency. In the disclosed embodiment, the housing 44 defines an installation space, within which the ratchet 41 and pawl 43 are mounted, and the first rope 42 is wound around the ratchet 41 and extends out of the installation space. The provision of the housing 44 also ensures the stability of the mating position of the first rope 42 with the ratchet 41, and the mating position of the ratchet teeth 412 with the pawl 43, preventing external interference. In the disclosed embodiment, the housing 44 includes a first shell 441 and a second shell 442. The first shell 441 and the second shell 442 are detachably connected to facilitate installation of the ratchet 41, the pawl 43, and the first rope 42. The first shell 441 and the second shell 442 can also be integrally formed.

[0073] In the exemplary embodiment, please combine Figure 2 、 Figure 3 、 Figures 5 to 7 The ratchet 41 can be rotatably connected to the first housing 441 via a first rotating shaft 411. In the disclosed embodiment, the first rotating shaft 411 is a hollow shaft structure. The first housing 441 is fixedly provided with or detachably connected to a first connecting shaft 45. The first rotating shaft 411 is sleeved on the first connecting shaft 45 and can rotate relative to the first connecting shaft 45, allowing the ratchet 41 to rotate relative to the first housing 441. The second rotating shaft 433 is a hollow shaft structure. The first housing 441 is fixedly provided with or detachably connected to a second connecting shaft 46. The second rotating shaft 433 is sleeved on the second connecting shaft 46 and can rotate relative to the second connecting shaft 46, allowing the pawl 43 to rotate relative to the first housing 441.

[0074] The housing 44 is provided with a wear-resistant member 47 having a through-hole, through which the free end of the first rope 42 is inserted. The wear-resistant member 47 can reduce wear on the first rope 42 and increase the lifespan of the first rope 42. In the disclosed embodiment, both the first rope 42 and the second rope 30 are steel wire ropes. The wear-resistant member 47 has a transition radius extending into the through-hole on the side facing the ratchet 41 to reduce wear on the first rope 42. The first housing 441 is provided with a plug-in port 511 on the side facing the second housing 442. The circumferential outer side of the wear-resistant member 47 is provided with a plug-in slot 200. The plug-in slot 200 can avoid the plug-in port 511, allowing the wear-resistant member 47 to be plugged into the plug-in port 511.

[0075] In the exemplary embodiment, please combine Figures 3 to 7The locking mechanism 40 further includes a spring 70, which is configured with one end fixed and the other end connected to the ratchet 41. In the disclosed embodiment, one end of the spring 70 is fixedly engaged with the first connecting shaft 45. The ratchet 41 has a connecting groove 300, and the other end of the spring 70 is received in the connecting groove 300 and is detachably connected to the ratchet 41. One end of the spring 70 can be fixedly engaged with and separated from the first connecting shaft 45 by plastic deformation, and the other end of the spring 70 can be moved into and out of the connecting groove 300 to facilitate replacement and maintenance of the spring 70.

[0076] As the first rope 42 drives the ratchet 41 to rotate, the clockwork spring 70 generates a driving force that drives the ratchet 41 to rotate and reset, thereby maintaining the first rope 42 in a taut state. In the disclosed embodiment, when the clothes drying rack 20 is lowered, the first rope 42, driven by the clothes drying rack 20, drives the ratchet 41 to rotate and increases the amount of extension from the ratchet 41. Driven by the ratchet 41, the clockwork spring 70 deforms and accumulates force, generating a driving force to rotate and reset the ratchet 41. When the clothes drying rack 20 is raised, the clockwork spring 70 releases the driving force, driving the ratchet 41 to rotate and reset, reducing the amount of extension of the first rope 42 from the ratchet 41 to retract the first rope 42, thereby achieving synchronous raising and lowering of the first rope 42 and the second rope 30.

[0077] During the movement of the clothes drying rack 20 relative to the main unit 10, both the first rope 42 and the second rope 30 remain taut. Since the second rope 30 is the driving rope and primarily bears the load, to maintain the height of the clothes drying rack 20, the second rope 30 must maintain a constant extension and constantly pull the clothes drying rack 20, which can easily lead to fatigue and breakage. The first rope 42 remains taut due to the action of the spring 70. Therefore, the extension of the first rope 42 can be adjusted based on the tension applied to it, thus preventing fatigue and breakage. If the second rope 30 breaks, the first end 431 engages with the ratchet 412 to prevent the first rope 42 from extending further from the ratchet 41. The first rope 42 remains taut and pulls the clothes drying rack 20, preventing it from falling.

[0078] In the description of the present disclosure, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "mouth structure", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present disclosure.

[0079] In the description of the embodiments of the present disclosure, unless otherwise expressly specified or limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection. The terms "installation", "connection", and "fixed connection" can refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0080] Although the embodiments disclosed in the present disclosure are as described above, the contents described are merely embodiments adopted to facilitate understanding of the present disclosure and are not intended to limit the present disclosure. It should be noted that the above embodiments or implementations are merely illustrative and not restrictive. Therefore, the present disclosure is not limited to the contents specifically shown and described herein. Various modifications, substitutions, or omissions may be made to the forms and details of the implementation without departing from the scope of the present disclosure.

Claims

1. A locking mechanism, characterized in that: include: A ratchet wheel having a first rotating shaft, wherein the ratchet wheel is provided with a plurality of ratchet teeth arranged around the first rotating shaft, and the plurality of ratchet teeth are inclined in a clockwise direction or a counterclockwise direction relative to the radial direction of the ratchet wheel; a first rope wound around the circumferential outer side of the ratchet in a clockwise or counterclockwise direction matching the inclination direction of the ratchet teeth, the first rope being configured to drive the ratchet to rotate and change the extension amount from the ratchet; and a pawl comprising a first end, a second end, and a second rotating shaft, wherein the first end, the second rotating shaft, and the second end are sequentially arranged in a clockwise direction or a counterclockwise direction matching the tilting direction; The first end portion is configured to be able to rotate around the second rotation axis toward a side away from the rotation path of the ratchet under the action of an external force, so that the second end portion moves into the rotation path and abuts against the ratchet; During the rotation of the ratchet wheel, the second end portion can periodically move closer to or farther from the first rotation axis around the second rotation axis under the action of the external force and the drive of the plurality of ratchets; During the process of the ratchet rotating in a clockwise direction or counterclockwise direction matching the tilting direction, when the driving force of the ratchet on the second end causes the ratchet to separate from the second end and the first end to move into the rotation path, the first end can be engaged with the ratchet.

2. The locking mechanism according to claim 1, wherein: The ratchet comprises a first driving surface and a second driving surface, wherein the first driving surface is located on a side of the ratchet close to the tilting direction, and the second driving surface is located on a side of the ratchet away from the tilting direction, and an inclination angle of the first driving surface relative to the radial direction of the ratchet is smaller than an inclination angle of the second driving surface relative to the radial direction of the ratchet; During the rotation of the ratchet in a clockwise direction or a counterclockwise direction, one of the first drive surface and the second drive surface can drive the second end portion.

3. The locking mechanism according to claim 2, wherein: The ratchet further includes a first arc surface, which is located on the side of the ratchet facing the pawl and connected between the first driving surface and the second driving surface.

4. The locking mechanism according to claim 2, wherein: A clamping surface is provided on a side of the first end away from the second rotating shaft, and the clamping surface matches the first driving surface.

5. The locking mechanism according to claim 4, characterized in that: The inclination angle of the first driving surface relative to the radial direction of the ratchet is 0° or the first driving surface is inclined toward one side of the inclination direction.

6. The locking mechanism according to claim 4, wherein: The first end portion includes a first connecting section and a first free end, the first connecting section is connected between the second rotating shaft and the first free end, the first free end is inclined from the first connecting section toward the ratchet side, and the clamping surface is provided at the first free end.

7. The locking mechanism according to claim 6, wherein: A first protrusion is provided on a side of the first free end facing the ratchet, and the clamping surface extends to the first protrusion.

8. The locking mechanism according to any one of claims 2 to 7, characterized in that: A second arc surface is provided on a side of the second end away from the second rotating shaft.

9. The locking mechanism according to claim 8, wherein: The second end portion includes a second connecting segment and a second free end, the second connecting segment is connected between the second rotating shaft and the second free end, the second arc surface is provided at the second free end, and a second protrusion is provided on the side of the second connecting segment facing the ratchet.

10. The locking mechanism according to claim 1, wherein: The locking mechanism further includes a housing, and the ratchet is rotatably connected to the housing via the first rotating shaft; The pawl is rotatably connected to the housing via the second rotating shaft; The housing is provided with an anti-wear component, the anti-wear component has a through hole, and the free end of the first rope is passed through the through hole.

11. The locking mechanism according to claim 1, wherein: The locking mechanism further includes a spring, one end of which is fixed and the other end is connected to the ratchet; When the first rope drives the ratchet wheel to rotate, the clockwork spring can generate a driving force to drive the ratchet wheel to rotate and reset.

12. A clothes drying machine, characterized in that: include: Host; clothes drying rack; a second rope provided between the main unit and the clothes drying rack, wherein the second rope is configured to control the height of the clothes drying rack relative to the main unit by changing the amount of extension of the second rope from the main unit; and The locking mechanism according to any one of claims 1 to 11, wherein the locking mechanism is provided on one of the main unit or the clothes drying rack, and the free end of the first rope of the locking mechanism is connected to the other of the main unit or the clothes drying rack.

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