Anti-falling mechanism of clothes airing machine and clothes airing machine

Abstract

The utility model discloses an anti-falling mechanism of a clothes airing machine and the clothes airing machine, and the anti-falling mechanism comprises a first locking matching unit connected to a telescopic bracket; the second locking matching unit is in transmission connection with the steel wire rope, the second locking matching unit has a locking state and an unlocking state, and when the steel wire rope is in a tensioning state, the second locking matching unit is in the unlocking state, and the telescopic bracket can stretch out and draw back freely; when the steel wire rope is in a loose state, the second locking matching unit is in a locking state, the first locking matching unit and the second locking matching unit are matched and locked, and at least the stretching freedom degree of the telescopic bracket is locked. When the accident that the steel wire rope is broken occurs, the steel wire rope is in a loose state after being broken, at the moment, the second locking matching unit automatically jumps to a locking state to lock the first matching locking piece, and at least the stretching freedom degree of the telescopic bracket is locked, so that the problem that the airing rack freely falls off after the traction of the steel wire rope is lost, and accidents are caused is solved.

Description

Technical Field

[0001] The present application relates to the technical field of clothes drying machines, and in particular to a clothes drying machine anti-falling mechanism and the clothes drying machine. Background Art

[0002] With the continuous improvement of the quality of life, clothes drying machines are increasingly gaining favor and recognition among consumers. However, with the continuous advancement of clothes drying machine technology, its safety issues are becoming increasingly important. Most clothes drying machines currently on the market use an electric drive system to pull the wire rope, which is connected to the bracket, and the bracket carries the clothes drying rod. In this structure, the wire rope plays a key load-bearing role. However, it is worth noting that once the wire rope breaks accidentally, it will directly cause the bracket and the clothes drying rod on it to fall off, which may cause serious personal injury accidents. Therefore, existing clothes drying machines have the safety hazard that when the wire rope breaks accidentally, the clothes drying rod will fall freely and injure the user. Utility Model Content

[0003] The purpose of the embodiments of the present utility model is to provide a clothes drying machine anti-falling mechanism and a clothes drying machine, which can solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] On the one hand, an anti-fall mechanism for a clothes drying machine is provided, comprising:

[0006] A first locking and matching unit connected to the telescopic bracket;

[0007] The second locking mating unit is connected to the wire rope transmission, and the second locking mating unit has a locked state and an unlocked state. When the wire rope is in the tensioned state, the second locking mating unit is in the unlocked state, and the telescopic bracket can be freely extended and retracted; when the wire rope is in the relaxed state, the second locking mating unit is in the locked state, and the first locking mating unit cooperates with the second locking mating unit to lock, and at least the extension freedom of the telescopic bracket is locked.

[0008] Optionally, the second locking mating unit includes a locking mating piece and a transmission frame, the transmission frame is connected to the steel wire rope for transmission, the locking mating piece is used to cooperate with the first locking mating unit to form a lock, and the locking mating piece is installed on the transmission frame, and the locking mating piece is driven by the transmission frame to approach or move away from the first locking mating unit to realize the switching between the locked state and the unlocked state.

[0009] Optionally, the second locking fitting unit is connected to the steel wire rope via a transmission assembly, and the transmission assembly includes an elastic member, which is connected to the steel wire rope and the transmission frame. When the steel wire rope is in a relaxed state, the elastic member releases elastic potential energy and drives the transmission frame to move, so that the locking fitting is close to the first locking fitting unit.

[0010] Optionally, the transmission assembly further includes a rope pulley, a wheel frame and a wheel axle, wherein the wheel frame is fixed to the clothes drying main unit, and the rope pulley is rotatably mounted on the wheel frame via the wheel axle;

[0011] The transmission frame is connected to the wheel axle; one end of the elastic member is connected to the wheel frame, and the other end is connected to the wheel axle;

[0012] The wire rope passes over the pulley, and when the wire rope is in a tensioned state, the pulley and the axle are pressed downward, the elastic member stores elastic potential energy, and the locking fitting is away from the first locking fitting unit; when the wire rope is in a relaxed state, the elastic member releases elastic potential energy, and the axle drives the transmission frame and the locking fitting to approach the first locking fitting unit.

[0013] Optionally, the wheel axle includes two connecting arms respectively located on both sides of the rope pulley, the two connecting arms are respectively connected to the transmission frame, and each of the transmission frames is equipped with a locking fitting.

[0014] Optionally, a micro switch is further included which is installed on the clothes drying host. The micro switch is arranged corresponding to the transmission component, and the on and off of the micro switch is controlled by the transmission component.

[0015] Optionally, the second locking fitting unit further includes a guide member, which is fixed to the clothes drying machine, and the transmission frame is slidably connected to the guide member, and the guide member guides the transmission frame to move closer to or away from the first locking fitting unit.

[0016] Optionally, in the locked state, the extension freedom of the telescopic bracket is locked, and the contraction freedom of the telescopic bracket is not locked.

[0017] Optionally, the locking fitting is a ratchet bar extending along the movable direction of the first locking fitting unit, and a plurality of ratchet grooves are spaced apart on the ratchet bar, and the first locking fitting unit is provided with a latching tooth for mating with the ratchet groove; in the locked state, the latching tooth is inserted into the ratchet groove, and the ratchet groove locks the latching tooth in one direction.

[0018] Optionally, the first locking and fitting unit includes a ratchet rotatably connected to the telescopic bracket, and the latch teeth are arranged on a periphery of the ratchet.

[0019] Optionally, the telescopic bracket includes a bracket body and a bracket guide rail, and sliding connection parts are respectively provided at the upper and lower ends of the bracket body, and the sliding connection parts are slidably connected to the bracket guide rail, and the horizontal sliding of the sliding connection parts is guided by the bracket guide rail; the first locking mating unit is connected to the sliding connection part, and in the locked state, the second locking mating unit locks the horizontal sliding of the first locking mating unit to lock the extension freedom of the telescopic bracket.

[0020] Optionally, the bracket guide rail includes an upper guide rail and a lower guide rail, the upper guide rail is fixedly connected to the clothes drying main unit, and the lower guide rail is fixedly connected to the clothes drying rack;

[0021] The sliding connection portion includes an upper sliding connection portion and a lower sliding connection portion, wherein the upper sliding connection portion is slidably connected to the upper guide rail, and the lower sliding connection portion is slidably connected to the lower guide rail;

[0022] The upper sliding connection portion is connected to the first locking and matching unit, and the clothes drying host is provided with the second locking and matching unit;

[0023] and / or,

[0024] The lower sliding connection portion is connected to the first locking matching unit, and the drying rack is provided with the second locking matching unit.

[0025] On the other hand, a clothes drying machine is provided, comprising the above-mentioned anti-fall mechanism.

[0026] The beneficial effects of the present application are as follows: the utility model provides a fall prevention mechanism for a clothes drying machine and a clothes drying machine, comprising a first locking cooperation unit and a second locking cooperation unit that can cooperate and lock with each other, the first locking cooperation unit is connected to the telescopic bracket, and the second locking cooperation unit is connected to the wire rope transmission. Under normal circumstances, the wire rope is always in a tensioned state. Under the action of the wire rope, the second locking cooperation unit is in an unlocked state, and the telescopic bracket can be freely extended and retracted without affecting the lifting function of the clothes drying rack; when an accident occurs in which the wire rope breaks, the wire rope is in a relaxed state after breaking, and at this time the second locking cooperation unit automatically jumps to the locked state to lock the first cooperation locking piece. After the first cooperation locking piece is locked, at least the extension freedom of the telescopic bracket is locked. Since the telescopic bracket cannot continue to extend, the clothes drying rack connected below cannot continue to descend, thereby avoiding the problem of the clothes drying rack freely falling after losing the traction of the wire rope and causing accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present application is further described in detail below with reference to the accompanying drawings and examples.

[0028] Figure 1This is one of the structural schematic diagrams of the anti-fall mechanism of the clothes drying machine according to an embodiment of the present application;

[0029] Figure 2 This is the second structural diagram of the anti-fall mechanism of the clothes drying machine according to the embodiment of the present application;

[0030] Figure 3 This is a partial structural diagram of the anti-fall mechanism of the clothes drying machine according to an embodiment of the present application;

[0031] Figure 4 for Figure 3 Enlarged view of area A in the middle;

[0032] Figure 5 for Figure 4 An exploded schematic diagram of the structure shown;

[0033] Figure 6 This is a schematic structural diagram of the second locking and matching unit in an embodiment of the present application;

[0034] Figure 7 This is an exploded schematic diagram of the second locking mating unit in an embodiment of the present application.

[0035] In the picture:

[0036] 1. Telescopic bracket; 11. Bracket body; 111. Sliding connection; 12. Upper guide rail; 13. Lower guide rail; 2. Second locking mating unit; 21. Locking mating piece; 211. Ratchet groove; 22. Transmission frame; 221. Guide pin; 222. Connecting sleeve; 23. Guide piece; 3. First locking mating unit; 31. Ratchet; 311. Gear; 4. Wire rope; 5. Box fixing piece; 6. Micro switch; 7. Transmission assembly; 71. Pulley; 72. Axle; 721. Connecting arm; 73. Elastic piece; 74. Wheel frame. DETAILED DESCRIPTION

[0037] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0038] In the description of this application, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0039] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0040] With the continuous improvement of the quality of life, clothes drying machines are increasingly gaining favor and recognition among consumers. However, with the continuous advancement of clothes drying machine technology, its safety issues are becoming increasingly important. Most clothes drying machines currently on the market use an electric drive system to pull the wire rope, which is connected to the bracket, and the bracket carries the clothes drying rod. In this structure, the wire rope plays a key load-bearing role. However, it is worth noting that once the wire rope breaks accidentally, it will directly cause the bracket and the clothes drying rod on it to fall off, which may cause serious personal injury accidents. Therefore, existing clothes drying machines have the safety hazard that when the wire rope breaks accidentally, the clothes drying rod will fall freely and injure the user.

[0041] In order to overcome the above technical problems, the present embodiment provides a fall prevention mechanism for a clothes drying machine, which can be applied to the clothes drying machine. The clothes drying machine includes a clothes drying machine main unit, a traction device, a telescopic bracket 1, and a drying rack. The clothes drying machine main unit can be hoisted under the ceiling, and the traction device is installed inside the clothes drying machine. The traction device extends a steel wire rope 4 that hangs down and connects to the drying rack. The telescopic bracket 1 is connected between the clothes drying machine main unit and the drying rack. When in operation, the drying rack can be used to hang clothes. The drying rack is driven to rise and fall by the winch of the traction device. The telescopic bracket 1 can maintain the stability of the drying rack and prevent the drying rack from shaking and swaying during the lifting process. Under normal circumstances, the steel wire rope 4 is the main load-bearing object of the drying rack, and the telescopic bracket 1 does not bear any weight. When the steel wire rope 4 accidentally breaks, the drying rack will fall freely and rapidly under the action of its own gravity, and the falling process will drive the telescopic bracket 1 to extend rapidly. Based on the anti-fall mechanism of this solution, when the wire rope 4 breaks accidentally, the anti-fall mechanism can quickly and automatically lock the telescopic bracket 1, so that the telescopic bracket 1 cannot be extended. Under the restriction of the telescopic bracket 1, the drying rack cannot fall, thereby avoiding the problem of accidental falling of the drying rack.

[0042] In order to achieve the anti-fall function, combined with Figure 1-7 The anti-fall mechanism of this embodiment includes at least a first locking mating unit 3 and a second locking mating unit 2. The first locking mating unit 3 is connected to the telescopic bracket 1; the second locking mating unit 2 is transmission-connected to the wire rope 4, and the second locking mating unit 2 has a locked state and an unlocked state. When the wire rope 4 is in the tensioned state, the second locking mating unit 2 is in the unlocked state, and the telescopic bracket 1 can be freely extended and retracted; when the wire rope 4 is in the relaxed state, the second locking mating unit 2 is in the locked state, and the first locking mating unit 3 cooperates with the second locking mating unit 2 to lock, and at least the extension freedom of the telescopic bracket 1 is locked.

[0043] It is understood that, under normal conditions, one end of the steel wire rope 4 is connected to the traction device and the other end is connected to the drying rack. Under the action of the gravity of the drying rack, the steel wire rope 4 will always be in a tensioned state. When the steel wire rope 4 breaks, due to the lack of traction from the drying rack, the steel wire rope 4 will instantly become relaxed. Therefore, a tensioned steel wire rope 4 indicates that it is functioning normally, while a relaxed steel wire rope 4 indicates that it may break. The second locking and mating unit 2 of this solution is in transmission connection with the steel wire rope 4, and its locking and unlocking states are controlled by the tension of the steel wire rope 4. This just meets the control requirements of keeping the second locking and mating unit 2 unlocked when the steel wire rope 4 is normal and automatically locking when the steel wire rope 4 breaks.

[0044] When the first locking matching unit 3 is locked with the second locking matching unit 2, at least the extension freedom of the telescopic bracket 1 is locked, which means that both the extension and contraction freedom of the telescopic bracket 1 can be locked, or the extension freedom can be locked alone, but the contraction freedom is not locked. The reason is that when the drying rack falls freely, it drives the telescopic bracket 1 to extend, and the extension freedom of the telescopic bracket 1 is locked, which can prevent the drying rack from falling.

[0045] In summary, the anti-fall mechanism of the clothes drying machine based on this embodiment includes a first locking cooperation unit 3 and a second locking cooperation unit 2 that can cooperate and lock with each other. The first locking cooperation is connected to the telescopic bracket 1, and the second locking cooperation unit 2 is connected to the wire rope 4 in a transmission connection. Under normal circumstances, the wire rope 4 is always in a tensioned state. Under the action of the wire rope 4, the second locking cooperation unit 2 is in an unlocked state, and the telescopic bracket 1 can be freely extended and retracted without affecting the lifting function of the clothes drying rack; when an accident occurs in which the wire rope 4 breaks, the wire rope 4 is in a relaxed state after breaking. At this time, the second locking cooperation unit 2 automatically jumps to the locked state to lock the first cooperation locking piece. After the first cooperation locking piece is locked, at least the extension freedom of the telescopic bracket 1 is locked. Since the telescopic bracket 1 cannot continue to extend, the clothes drying rack connected below cannot continue to descend, thereby avoiding the problem of the clothes drying rack falling freely after losing the traction of the wire rope 4 and causing accidents.

[0046] The above-mentioned cooperation form of the first locking cooperation unit 3 and the second locking cooperation unit 2 can be, but is not limited to, the following forms:

[0047] ① Ratchet 31 pawl structure:

[0048] Locking principle: When the wire rope 4 is loose, the pawl is automatically engaged in the tooth groove of the ratchet 31 under the action of the spring, thereby achieving locking.

[0049] Unlocking principle: When the wire rope 4 is tensioned, an unlocking mechanism (such as a push rod, a slider, etc.) can be used to push the pawl out of the tooth groove of the ratchet 31 to achieve unlocking.

[0050] ②Latch type locking structure:

[0051] Locking principle: When the wire rope 4 is loose, the pin is automatically inserted into the locking hole under the action of the spring, connecting the two matching units together to achieve locking.

[0052] Unlocking principle: When the wire rope 4 is tensioned, the latch can be pulled out of the locking hole through an unlocking mechanism (such as an electromagnet, a pneumatic device, etc.) to achieve unlocking.

[0053] ③ Electromagnet locking structure:

[0054] Locking principle: When the wire rope 4 is loose, the electromagnet is energized to generate magnetic force, which attracts the iron locking piece (such as an iron sheet, an iron ring, etc.) to connect with another matching unit to achieve locking.

[0055] Unlocking principle: When the wire rope 4 is tightened, the electromagnet is powered off, the magnetic force disappears, and the locking piece is separated from the mating unit under the action of the spring or other reset mechanism, thereby achieving unlocking.

[0056] The on-off control of the electromagnet can be achieved by using a Hall sensor to detect the signal. When the wire rope 4 changes from being taut to being loose, the Hall sensor detects the signal change, controls the electromagnet to be energized, and attracts the locking member to achieve locking.

[0057] Regarding the setting of the second locking and matching unit 2, in some embodiments, combined with Figure 6 The second locking fitting unit 2 includes a locking fitting 21 and a transmission frame 22. The transmission frame 22 is connected to the steel wire rope 4 for transmission. The locking fitting 21 is used to cooperate with the first locking fitting unit 3 to form a lock. The locking fitting 21 is installed on the transmission frame 22. The locking fitting 21 is driven by the transmission frame 22 to move closer to or away from the first locking fitting unit 3, thereby realizing the switching between the locked state and the unlocked state.

[0058] When the wire rope 4 slackens, the transmission frame 22 quickly responds and drives the locking member 21 toward the first locking unit 3, achieving rapid locking and effectively preventing the drying rack from falling. The design of the lock fitting 21 and the first locking unit 3 ensures sufficient strength and stability in the locked state, preventing accidental unlocking. Furthermore, this design can be adapted to different sizes and types of clothes drying racks, as the transmission frame 22 and the locking member 21 can be adjusted and optimized as needed.

[0059] In some embodiments, combined Figure 6-7 The second locking fitting unit 2 is connected to the steel wire rope 4 through a transmission assembly 7. The transmission assembly 7 includes an elastic member 73. The elastic member 73 is connected to the steel wire rope 4 and the transmission frame 22. When the steel wire rope 4 is in a relaxed state, the elastic member 73 releases elastic potential energy and drives the transmission frame 22 to move, so that the locking fitting 21 is close to the first locking fitting unit 3.

[0060] Specifically, the elastic member 73 can be a spring, elastic sheet, torsion spring, or spring. When the wire rope 4 is in tension, the wire rope 4 directly or indirectly applies pressure or tension to the elastic member 73, causing the elastic member 73 to store elastic potential energy. Once the wire rope 4 relaxes, the elastic member 73 quickly releases its stored elastic potential energy. This rapid release of energy drives the transmission frame 22, allowing the locking member 21 to quickly approach the first locking unit 3, achieving rapid locking. This mechanism improves the response speed and sensitivity of the anti-fall mechanism, ensuring that swift action can be taken in emergency situations such as when the wire rope 4 breaks.

[0061] In some embodiments, the transmission assembly 7 further includes a pulley 71, a wheel frame 74 and a wheel shaft 72, wherein the wheel frame 74 is fixed to the clothes drying main unit, and the pulley 71 is rotatably mounted on the wheel frame 74 via the wheel shaft 72;

[0062] The transmission frame 22 is connected to the wheel axle 72; one end of the elastic member 73 is connected to the wheel frame 74, and the other end is connected to the wheel axle 72;

[0063] The wire rope 4 passes around the pulley 71. When the wire rope 4 is in a tensioned state, the pulley 71 and the axle 72 are pressed downward, the elastic member 73 stores elastic potential energy, and the locking fitting 21 moves away from the first locking fitting unit 3. When the wire rope 4 is in a relaxed state, the elastic member 73 releases elastic potential energy, and the axle 72 drives the transmission frame 22 and the locking fitting 21 to approach the first locking fitting unit 3.

[0064] A pulley 71, a wheel frame 74, and a rotating shaft are provided. The wire rope 4 is passed around the pulley 71. When the wire rope 4 is in a tensioned or relaxed state, the pressure it exerts on the pulley 71 varies. This achieves a process of converting the tension of the wire rope 4 into a change in the force and position of the pulley 71 and the wheel shaft 72. At the same time, with the cooperation of the elastic member 73, the movement of the wheel shaft 72 drives the movement of the transmission frame 22, thereby achieving the purpose of controlling the locking and unlocking of the second locking engagement unit 2. The advantage of this embodiment is that since the wire rope 4 needs to be frequently hoisted during operation, if the wire rope 4 is directly brought into contact with the transmission frame 22 and pressure is applied, the sliding friction between the wire rope 4 and the transmission frame 22 will cause the wire rope 4 to wear rapidly and easily generate noise. However, with the pulley 71 and the rotating shaft, the pulley 71 and the rotating shaft are used as the transmission medium, achieving the purpose of indirectly controlling the transmission frame 22 by the wire rope 4. Moreover, during operation, the wire rope 4 and the pulley 71 experience rolling friction, which effectively reduces the wear rate of the wire rope 4 and avoids the problem of wear noise.

[0065] Optional, combined Figure 6When the wheel shaft 72 is lifted up, the gear 73 is tightened, and the spring 71 is tightened to the left and right sides of the gear 74 so that the gear 73 can slide downwards and slide downwards, thereby loosening the gear 73 and loosening the gear 73.

[0066] In specific application, the clothes drying host includes a main body case, the main body case includes a case frame, the case frame includes two left and right side panels and two front and rear case fixing parts 5, each case fixing part 5 is respectively installed with a transmission component 7, specifically, the wheel frame 74 is fixed on the case fixing part 5; the traction device provided in the clothes drying host extends two steel ropes 4 from the front and back respectively, and the two steel ropes 4 respectively pass around the two front and rear pulleys 71 and then hang down and connect to the drying rack. Therefore, in this structure, the transmission component 7 can not only control the tightness of the steel rope 4 to control the transmission frame 22, but also be used to provide support and steering for the steel rope 4, so that the steel rope 4 can be connected to the front and rear ends of the drying rack respectively, thereby providing a stable pulling force for the drying rack.

[0067] In some embodiments, the axle 72 includes two connecting arms 721 located on both sides of the pulley 71, and the two connecting arms 721 are respectively connected to the transmission frame 22, and each of the transmission frames 22 is equipped with a locking fitting 21.

[0068] Specifically, the telescopic bracket 1 includes a bracket body 11, and two sliding connection parts 111 are respectively provided at the upper and lower ends of the bracket body 11. The two sliding connection parts 111 at the upper end are respectively located on both sides of the rope pulley 71. When used, the first locking and mating unit 3 is preferably installed on the sliding connection parts 111. Therefore, in this embodiment, the wheel shaft 72 is provided with two connecting arms 721 located on both sides of the rope pulley 71, which can respectively support the transmission frames 22 on both sides. The transmission frames 22 on both sides can each be equipped with a locking mating member 21, thereby achieving simultaneous locking of the left and right sliding connection parts 111 at the upper end of the bracket body 11, thereby achieving a more stable and reliable locking effect.

[0069] Optionally, the transmission frames 22 on the left and right sides are connected in the middle by a connecting bridge portion.

[0070] Optional, see Figure 7 A connecting sleeve 222 is provided on the transmission frame 22 , and the connecting arm 721 passes through the connecting sleeve 222 to achieve a reliable connection with the transmission frame 22 .

[0071] In some embodiments, referring to Figure 3 , also includes a micro switch 6 installed on the clothes drying host, the micro switch 6 is correspondingly arranged with the transmission component 7, and the on and off of the micro switch 6 is controlled by the transmission component 7.

[0072] Specifically, in the actual use of the clothes drying machine, the wire rope 4 will not only become loose when it breaks. During the descent of the clothes drying rack, when the bottom of the clothes drying rack is blocked and cannot continue to descend, the wire rope 4 that continues to be raised will become loose. In order to avoid the problem of the drying rack losing balance due to obstruction during the descent process, since the transmission component 7 is controlled by the tightness of the wire rope 4, the micro switch 6 controlled by the transmission component 7 set in this scheme can also feedback the tightness of the wire rope 4. For example, when the wire rope 4 is normally suspending the drying rack, the wire rope 4 is tensioned, and the transmission component 7 controls the micro switch 6 to remain in the triggered or disconnected state; when the wire rope 4 is loose (it may be that the drying rack encounters resistance when descending), the transmission component 7 switches the position state, and the micro switch 6 switches to the disconnected or triggered state, thus realizing the function of automatically detecting that the drying rack encounters resistance; wherein, the micro switch 6 is connected to the control center signal of the clothes drying machine, and the control center can automatically control according to the signal of the micro switch 6. When resistance is detected, it can automatically reverse the operation to raise the drying rack to maintain the problem of the drying rack, that is, the function of automatically lifting when resistance is encountered is realized.

[0073] During specific implementation, the micro switch 6 can be set above or below the wheel axle 72, and the micro switch 6 can be controlled based on the lifting and lowering of the wheel axle 72.

[0074] In some embodiments, the second locking fitting unit 2 further includes a guide member 23, which is fixed to the clothes drying machine. The transmission frame 22 is slidably connected to the guide member 23, and the guide member 23 guides the transmission frame 22 to move closer to or away from the first locking fitting unit 3.

[0075] The main function of the guide member 23 is to provide a stable path or direction to guide the transmission frame 22 to move in a predetermined manner, ensure that the locking fitting 21 on the transmission frame 22 can stably lock with the first locking fitting unit 3, and ensure the stability of the locking fitting 21.

[0076] When implementing it, refer to Figure 7 The guide member 23 is provided with a guide hole, and the transmission frame 22 is correspondingly provided with a guide pin 221, which extends into the guide hole to achieve the guidance of the transmission frame 22 by the guide member 23.

[0077] In some embodiments, in the locked state, the extension degree of freedom of the telescopic bracket 1 is locked, and the contraction degree of freedom of the telescopic bracket 1 is not locked.

[0078] Specifically, as can be seen from the foregoing description, during the actual use of the clothes drying rack, the wire rope 4 does not only become loose when it breaks. During the descent of the clothes drying rack, when the rack encounters an obstruction below and cannot continue to descend, the wire rope 4 that continues to be raised will become loose. Moreover, the wire rope 4 generally only breaks in extreme circumstances. The probability of the descent of the clothes drying rack encountering an obstruction is relatively high. To ensure that the clothes drying rack can be lifted normally when it encounters an obstruction, this solution only locks the extension freedom of the telescopic bracket 1 to ensure that the descent of the clothes drying rack can be restricted in the event of a breakage of the wire rope 4 or an obstruction in the descent of the clothes drying rack. Importantly, the contraction freedom of the telescopic bracket 1 is not locked. When it is determined that an obstruction may be encountered during the descent, the wire rope 4 is reversely reeled to pull the clothes drying rack up. The telescopic bracket 1 can be squeezed and contracted normally during the lifting process of the clothes drying rack. Therefore, this solution can avoid the problem of the telescopic bracket 1 being completely locked and hindering the lifting of the clothes drying rack.

[0079] In some embodiments, referring to Figure 4 The locking fitting 21 is a ratchet bar extending along the movable direction of the first locking fitting unit 3, and a plurality of ratchet grooves 211 are spaced apart on the ratchet bar. The first locking fitting unit 3 is provided with a latching tooth 311 for cooperating with the ratchet groove 211; in the locked state, the latching tooth 311 is inserted into the ratchet groove 211, and the ratchet groove 211 locks the latching tooth 311 in one direction.

[0080] The first locking mating unit 3 is installed on the telescopic bracket 1, so the first locking mating unit 3 will be driven to move during the extension and retraction of the telescopic bracket 1 (it may be up and down movement, or it may be left and right movement, which is determined by the specific installation position of the first locking mating unit 3 on the telescopic bracket 1). The ratchet bar is a form of locking mating part 21, which extends along the movement direction of the first locking mating unit 3, which means that the length direction of the ratchet bar is consistent with the movement direction of the first locking mating unit 3. There are multiple ratchet grooves 211 spaced apart on the ratchet bar. These ratchet grooves 211 are specially designed to cooperate with the latch teeth 311 on the first locking mating unit 3 to achieve the locking function. The first locking mating unit 3 is provided with latch teeth 311, which are used to cooperate with the ratchet grooves 211 on the ratchet bar. The shape and size of the latch teeth 311 usually match the ratchet grooves 211 to ensure that they can fit tightly together. In the locked state, the latch tooth 311 of the first locking mating unit 3 will be locked into the ratchet groove 211 on the ratchet bar. The ratchet groove 211 realizes a one-way locking of the latch tooth 311. After locking, the first locking mating unit 3 cannot be driven to move by the extended telescopic bracket 1, thereby limiting the extension of the telescopic bracket 1; however, the locked first locking mating unit 3 can be driven to move by the retracted telescopic bracket 1, so the telescopic bracket 1 can retract normally.

[0081] In some embodiments, the first locking and fitting unit 3 includes a ratchet 31 rotatably connected to the telescopic bracket 1 , and the latch teeth 311 are disposed on a periphery of the ratchet 31 .

[0082] The first locking mating unit 3 is provided with a ratchet 31, so that, in the locked state, the steel wire rope 4 drives the drying rack to rise, and during the process of the telescopic bracket 1 being squeezed and contracted, the ratchet 31 can roll along the ratchet bar to separate the latch teeth 311 from the ratchet groove 211, thereby avoiding the problem of the latch teeth 311 jumping relative to the ratchet bar, and improving the smoothness and stability of the contraction process of the telescopic bracket 1.

[0083] In some embodiments, referring to Figure 1-2 The telescopic bracket 1 includes a bracket body 11 and a bracket guide rail. A sliding connection part 111 is respectively provided at the upper and lower ends of the bracket body 11. The sliding connection part 111 is slidably connected to the bracket guide rail, and the horizontal sliding of the sliding connection part 111 is guided by the bracket guide rail; the first locking matching unit 3 is connected to the sliding connection part 111. In the locked state, the second locking matching unit 2 locks the horizontal sliding of the first locking matching unit 3 to lock the extension freedom of the telescopic bracket 1.

[0084] Specifically, the bracket body 11 is a scissors bracket, and its upper and lower ends are respectively slidably connected to the bracket guide rails through sliding connection parts 111. During the upward and downward extension of the bracket body 11, the sliding connection part 111 will slide horizontally along the bracket guide rail. Therefore, by locking the horizontal sliding freedom of the sliding connection part 111, the extension and retraction of the bracket body 11 can be locked.

[0085] In this embodiment, the first locking member 21 is connected to the sliding connection portion 111, so its movement path is horizontal. The horizontal movement of the first locking member 21 is simple and stable, making it easier to install the second locking member 2 to cooperate with it. The second locking member 2 can be simply set horizontally and allowed to move up and down. In addition, the bracket rails at the upper and lower ends are respectively connected to the clothes drying main unit and the clothes drying rack. In this case, the second locking member 2 can be installed using the space support of the clothes drying main unit or the clothes drying rack to ensure the stability of the second locking member 2.

[0086] In some embodiments, the bracket guide rail includes an upper guide rail 12 and a lower guide rail 13, wherein the upper guide rail 12 is fixedly connected to the clothes drying main unit, and the lower guide rail 13 is fixedly connected to the clothes drying rack;

[0087] The sliding connection portion 111 includes an upper sliding connection portion and a lower sliding connection portion, wherein the upper sliding connection portion is slidably connected to the upper guide rail 12 and the lower sliding connection portion is slidably connected to the lower guide rail 13;

[0088] The upper sliding connection portion is connected to the first locking and matching unit 3, and the clothes drying host is provided with the second locking and matching unit 2;

[0089] and / or,

[0090] The lower sliding connection portion is connected to the first locking fitting unit 3 , and the drying rack is provided with the second locking fitting unit 2 .

[0091] That is, according to needs, the first locking cooperation unit 3 can be set only at the upper end of the bracket body 11, and the second locking cooperation unit 2 can be set on the clothes drying main unit; the first locking cooperation unit 3 can be set only at the lower end of the bracket body 11, and the second locking cooperation unit 2 can be set on the clothes drying rack; or the first locking cooperation unit 3 can be set at the upper and lower ends of the bracket body 11 respectively, and the second locking cooperation unit 2 can be set on the clothes drying main unit and the clothes drying rack respectively.

[0092] Optional, see Figure 1 The upper guide rail 12 and the box fixing part 5 of the clothes drying host are an integrated structure.

[0093] On the other hand, a clothes drying machine is provided, comprising the above-mentioned anti-fall mechanism.

[0094] Based on the anti-fall mechanism of this embodiment, the clothes drying machine of this embodiment can lock the clothes drying rack to prevent it from falling when the wire rope breaks accidentally, which has the advantage of high safety.

[0095] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other positions or relationships are used solely for ease of description and simplified operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0096] Throughout this specification, references to terms such as "one embodiment" and "example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example.

[0097] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0098] The technical principles of the present application have been described above in conjunction with specific embodiments. These descriptions are intended solely to explain the principles of the present application and are not to be construed in any way as limiting the scope of protection of the present application. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present application without inventive effort, and such implementations will fall within the scope of protection of the present application.

Claims

1. A clothes drying machine anti-fall mechanism, characterized in that: include: A first locking and matching unit connected to the telescopic bracket; The second locking mating unit is connected to the wire rope transmission, and the second locking mating unit has a locked state and an unlocked state. When the wire rope is in the tensioned state, the second locking mating unit is in the unlocked state, and the telescopic bracket can be freely extended and retracted; when the wire rope is in the relaxed state, the second locking mating unit is in the locked state, and the first locking mating unit cooperates with the second locking mating unit to lock, and at least the extension freedom of the telescopic bracket is locked.

2. The anti-fall mechanism of the clothes drying machine according to claim 1, characterized in that: The second locking mating unit includes a locking mating piece and a transmission frame, the transmission frame is connected to the steel wire rope for transmission, the locking mating piece is used to cooperate with the first locking mating unit to form a lock, the locking mating piece is installed on the transmission frame, and the locking mating piece is driven by the transmission frame to move closer to or away from the first locking mating unit to achieve switching between the locked state and the unlocked state.

3. The anti-falling mechanism of the clothes drying machine according to claim 2, characterized in that: The second locking fitting unit is connected to the steel wire rope through a transmission assembly, and the transmission assembly includes an elastic member, which is connected to the steel wire rope and the transmission frame. When the steel wire rope is in a relaxed state, the elastic member releases elastic potential energy and drives the transmission frame to move, so that the locking fitting is close to the first locking fitting unit.

4. The anti-falling mechanism of the clothes drying machine according to claim 3, characterized in that: The transmission assembly further comprises a rope pulley, a wheel frame and a wheel shaft, wherein the wheel frame is fixed to the clothes drying main unit, and the rope pulley is rotatably mounted on the wheel frame via the wheel shaft; The transmission frame is connected to the wheel axle; one end of the elastic member is connected to the wheel frame, and the other end is connected to the wheel axle; The steel wire rope passes over the rope pulley. When the steel wire rope is in a tensioned state, the rope pulley and the wheel shaft are pressed downward, the elastic member stores elastic potential energy, and the locking fitting is away from the first locking fitting unit. When the steel wire rope is in a relaxed state, the elastic member releases elastic potential energy, and the wheel shaft drives the transmission frame and the locking fitting to approach the first locking fitting unit.

5. The anti-falling mechanism of the clothes drying machine according to claim 4, characterized in that: The wheel shaft includes two connecting arms respectively located on both sides of the rope pulley, the two connecting arms are respectively connected to the transmission frame, and each of the transmission frames is equipped with a locking fitting.

6. The anti-falling mechanism of the clothes drying machine according to claim 3, characterized in that: It also includes a micro switch installed on the clothes drying host, the micro switch is set corresponding to the transmission component, and the on and off of the micro switch is controlled by the transmission component.

7. The anti-falling mechanism of the clothes drying machine according to claim 2, characterized in that: The second locking and fitting unit further includes a guide member, which is fixed to the clothes drying machine. The transmission frame is slidably connected to the guide member, and the transmission frame is guided by the guide member to move closer to or away from the first locking and fitting unit.

8. The anti-falling mechanism of the clothes drying machine according to claim 2, characterized in that: In the locked state, the extension freedom of the telescopic bracket is locked, and the contraction freedom of the telescopic bracket is unlocked.

9. The anti-falling mechanism of the clothes drying machine according to claim 8, characterized in that: The locking fitting is a ratchet bar extending along the movable direction of the first locking fitting unit, and a plurality of ratchet grooves are spaced apart on the ratchet bar. The first locking fitting unit is provided with a latching tooth for mating with the ratchet groove. In the locked state, the latching tooth is inserted into the ratchet groove, and the ratchet groove locks the latching tooth in one direction.

10. The anti-falling mechanism of the clothes drying machine according to claim 9, characterized in that: The first locking and matching unit includes a ratchet rotatably connected to the telescopic bracket, and the latch teeth are arranged on the periphery of the ratchet.

11. The anti-falling mechanism of the clothes drying machine according to claim 1, characterized in that: The telescopic bracket includes a bracket body and a bracket guide rail, and sliding connection parts are respectively provided at the upper and lower ends of the bracket body. The sliding connection parts are slidably connected to the bracket guide rail, and the horizontal sliding of the sliding connection parts is guided by the bracket guide rail; the first locking matching unit is connected to the sliding connection part, and in the locked state, the second locking matching unit locks the horizontal sliding of the first locking matching unit to lock the extension freedom of the telescopic bracket.

12. The anti-falling mechanism of the clothes drying machine according to claim 11, characterized in that: The bracket guide rail includes an upper guide rail and a lower guide rail, the upper guide rail is fixedly connected to the clothes drying main unit, and the lower guide rail is fixedly connected to the clothes drying rack; The sliding connection portion includes an upper sliding connection portion and a lower sliding connection portion, wherein the upper sliding connection portion is slidably connected to the upper guide rail, and the lower sliding connection portion is slidably connected to the lower guide rail; The upper sliding connection portion is connected to the first locking and matching unit, and the clothes drying host is provided with the second locking and matching unit; and / or, The lower sliding connection portion is connected to the first locking matching unit, and the drying rack is provided with the second locking matching unit.

13. A clothes drying machine, characterized in that: The invention comprises the anti-fall mechanism described in any one of claims 1 to 12.

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