Lifting limiting mechanism of clothes airing machine and clothes airing machine

Abstract

The utility model discloses a lifting limiting mechanism of a clothes airing machine and the clothes airing machine, and the lifting limiting mechanism of the clothes airing machine comprises a trigger piece and a detection unit, the trigger piece is movably installed on an airing frame of the clothes airing machine and can ascend and descend along with the airing frame. The triggering piece is in transmission fit with a telescopic airing rod of the airing rack; the detection unit is arranged on a main machine of the clothes airing machine and is in communication connection with a control unit of the clothes airing machine; in the lifting process of the drying rack, when the telescopic drying rod is in an unfolded state, the trigger piece can trigger the detection unit to stop the lifting of the drying rack before the drying rack is lifted to the upper limit position; when the telescopic airing rod is in a folded state, the trigger piece cannot trigger the detection unit before the airing rack rises to the upper limit position, so that the airing rack stops rising. According to the lifting limiting mechanism of the clothes airing machine, the telescopic airing rod of the clothes airing machine can be prevented from colliding with the ceiling in the unfolded state, and the safety of the clothes airing machine in the using process is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of household products, and in particular to a clothes drying rack lifting limit mechanism and a clothes drying rack. Background Technology

[0002] Most clothes drying racks on the market currently use retractable rods that can be raised or lowered to hang clothes. To improve space utilization, more and more clothes drying racks are being installed in a recessed configuration. When not in use, the retractable rod can be switched to a shorter, retracted state and then raised again to be stored in a storage slot in the ceiling or other mounting locations. For the sake of aesthetics, the size of the storage slot is generally much smaller than the length of the retractable rod when it is extended. Therefore, in the extended state of existing clothes drying racks, if the drive unit raises the retractable rod to be stored in the ceiling storage slot, the extended rod may interfere with the ceiling, causing damage to the ceiling or the retractable rod. This is especially true for clothes drying racks with a slight lifting function for the retractable rod; if this is accidentally triggered and the stop button is not pressed in time or the remote control is not found, a collision with the ceiling is very likely. Utility Model Content

[0003] One objective of this utility model embodiment is to provide a clothes drying rack lifting limit mechanism that can prevent the telescopic drying rod from hitting the top when it is in the extended state.

[0004] Another objective of this utility model embodiment is to provide a clothes drying rack that can utilize the aforementioned clothes drying rack lifting limit mechanism to prevent the telescopic drying rod from colliding with the ceiling when it is in the extended state, thereby improving the safety of the clothes drying rack during use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] On the one hand, a clothes drying rack lifting limit mechanism is provided, comprising:

[0007] A trigger is movably mounted on the clothes drying rack and can rise and fall with the drying rack; the trigger is in transmission cooperation with the telescopic drying rod of the drying rack;

[0008] The detection unit is located on the main unit of the clothes drying rack and is connected in communication with the control unit of the clothes drying rack;

[0009] During the rising process of the drying rack, when the telescopic drying rod is in the extended state, the triggering element can trigger the detection unit to stop the drying rack from rising before it reaches the upper limit position; when the telescopic drying rod is in the retracted state, the triggering element cannot trigger the detection unit to stop the drying rack from rising before it reaches the upper limit position.

[0010] Optionally, it also includes a base disposed on the drying rack and capable of rising and falling with the drying rack; a trigger is movably mounted on the base and can switch between a first position and a second position. When the telescopic drying rod is in an extended state, the trigger switches to the first position, and when the telescopic drying rod is in a retracted state, the trigger switches to the second position.

[0011] Optionally, the clothes drying rack lifting limit mechanism further includes a drive component slidably mounted on the base; the trigger component is rotatably mounted on the base, and the trigger component is in transmission cooperation with the telescopic drying rod of the clothes drying rack through the drive component; the detection unit is located above the trigger component, and the trigger component switches to the first position when it rotates in the direction close to the detection unit.

[0012] Optionally, a rotating shaft is mounted on the base, the trigger is rotatably mounted on the base via the rotating shaft, a rocker arm is mounted on the rotating shaft, the drive is slidably mounted on the base, the drive is provided with a guide groove, and the rocker arm slides radially along the rotating shaft in the guide groove.

[0013] Optionally, the base is provided with a sliding channel, the driving member is slidably disposed in the sliding channel, the driving member is provided with a limiting plate, and the sliding channel is located between the limiting plate and the guide groove.

[0014] Optionally, one end of the driving member is provided with a top plate, and the guide groove is provided at the other end of the driving member.

[0015] Optionally, the clothes drying rack lifting limit mechanism further includes an elastic reset member; the elastic reset member connects the trigger member and the base and applies elastic force to switch the trigger member to the first position.

[0016] Optionally, the elastic reset element is a torsion spring and is mounted on the base, with one torsion axis of the torsion spring connected to the base and the other torsion axis of the torsion spring connected to the trigger element.

[0017] On the other hand, a clothes drying rack is provided, characterized in that it includes a main unit, a lifting mechanism, a drying rack, and the aforementioned clothes drying rack lifting limit mechanism;

[0018] The drying rack is mounted on the lifting mechanism and connected to the main unit through the lifting mechanism. The drying rack moves up and down under the drive of the lifting mechanism.

[0019] The drying rack includes a telescopic drying rod that can be extended and retracted; before the drying rack rises to its upper limit, a trigger on it can trigger a detection unit when the telescopic drying rod is in the extended state.

[0020] The host is equipped with a control unit and a drive unit; the control unit is connected to the detection unit and connected to the lifting mechanism through the drive unit, and is used to control the lifting and lowering movement of the drying rack according to the signal fed back by the detection unit.

[0021] Optionally, the drying rack further includes a connecting seat installed on the lifting mechanism and a support seat installed on the connecting seat, the telescopic drying rod is slidably disposed on the support seat to switch between an extended state and a retracted state, and the trigger is installed on the support seat.

[0022] Optionally, the support base is provided with a rod groove, and when the telescopic drying rod is in the retracted state, the telescopic drying rod is located in the rod groove.

[0023] Optionally, there are multiple telescopic drying rods;

[0024] At least some of the telescopic drying rods are linked together;

[0025] or

[0026] The clothes drying rack has multiple lifting limit mechanisms, each corresponding to one of the multiple telescopic drying rods.

[0027] The beneficial effects of this utility model are as follows: The clothes drying rack's lifting limit mechanism utilizes a trigger element in conjunction with the telescopic drying rod. During the rising process of the drying rack, when the telescopic drying rod is in the extended state, the trigger element can activate the detection unit before the drying rack reaches its upper limit position. This allows the detection unit to control the telescopic drying rod to stop rising, preventing it from hitting the top. When the telescopic drying rod is in the retracted state, the trigger element cannot activate the detection unit before the drying rack reaches its upper limit position, allowing the telescopic drying rod to rise to its upper limit position for storage.

[0028] This utility model of a clothes drying rack solves the problem that existing clothes drying racks are prone to collisions with the ceiling when the telescopic drying rod is in the extended state by adopting the clothes drying rack lifting limit mechanism, thus improving the safety of the clothes drying rack during use. Attached Figure Description

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] Figure 1 This is a schematic diagram of the lifting limit mechanism of a clothes drying rack; the detection unit is omitted in the diagram.

[0031] Figure 2 for Figure 1 Exploded view;

[0032] Figure 3 This is a top view of a clothes drying rack, with the telescopic drying rod in the retracted state.

[0033] Figure 4 This is a schematic diagram of a clothes drying rack, showing the telescopic drying rod in the retracted state.

[0034] Figure 5 This is a schematic diagram of a clothes drying rack, with the telescopic drying rod in the extended state.

[0035] Figure 6 for Figure 5 An enlarged view of point A.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Clothes drying rack lifting limit mechanism; 2. Main unit; 4. Linkage component; 5. Telescopic drying rod; 6. Connecting seat; 7. Support seat; 8. Lifting mechanism; 9. Guide rod;

[0038] 11. Base; 12. Trigger; 13. Elastic reset component; 14. Drive component; 15. Detection unit; 16. Rotating shaft; 17. Joystick;

[0039] 111. Sliding channel; 112. Bottom shell; 113. Cover plate;

[0040] 141. Guide groove; 142. Limiting plate; 143. Top plate. Detailed Implementation

[0041] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0042] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "fixed," "linked," "communicated," "abutting," "clamping," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description herein, it should be understood that the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationships shown in the accompanying drawings, and are used only for ease of description and simplification of operation. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0047] Before discussing the exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of these operations can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but it may also have additional steps not included in the figures. The process may correspond to a method, function, procedure, subroutine, subroutine, etc.

[0048] Unless otherwise stated or defined, the term "and / or" as used in this invention includes any and all combinations of one or more of the associated listed items.

[0049] For ease of description, the up and down directions mentioned below are... Figure 1 Its vertical direction is consistent with its horizontal direction, and the forward and backward directions mentioned below are consistent with its vertical direction. Figure 3 Its vertical direction is consistent with the horizontal direction mentioned below. Figure 1 Its left and right directions are consistent.

[0050] like Figures 1 to 6 As shown, a clothes drying rack lifting limit mechanism 1 includes a trigger 12 and a detection unit 15.

[0051] The trigger 12 is movably mounted on the clothes drying rack. The drying rack is raised and lowered by the drive unit of the clothes drying rack, so that the trigger 12 can rise and fall with the drying rack. The trigger 12 is movably mounted on the drying rack and is in transmission cooperation with the telescopic drying rod 5 of the drying rack.

[0052] The trigger element 12 is movably installed on the drying rack, specifically either by rotation or by sliding.

[0053] The trigger 12 and the telescopic drying rod 5 can be connected directly or indirectly, so that the telescopic drying rod 5 can drive the trigger 12 to move when it is in the extended state. The telescopic drying rod 5 has a retracted state and an extended state. All of the telescopic drying rod 5's non-fully retracted state can be regarded as the extended state, that is, the fully extended or partially extended state of the telescopic drying rod 5 is considered the extended state.

[0054] It is understood that the transmission and cooperation method between the trigger 12 and the telescopic drying rod 5 is not intended to limit this application. In other embodiments, the transmission and cooperation method between the trigger 12 and the telescopic drying rod 5 of the clothes drying machine can also be that the trigger 12 is set on the movement path of the telescopic drying rod 5 when it is switched to the unfolded state. When the telescopic drying rod 5 is extended, the telescopic drying rod 5 abuts against the trigger 12 and drives the trigger 12 to move.

[0055] The detection unit 15 is located on the main unit of the clothes drying rack and is connected to the control unit of the clothes drying rack. The detection unit 15 is electrically connected to the drive unit of the clothes drying rack and can control the drive unit to stop.

[0056] During the rising process of the drying rack, when the telescopic drying rod 5 is in the extended state, the trigger 12 can trigger the detection unit 15 before the drying rack rises to the upper limit position, thus stopping the drying rack from rising. When the telescopic drying rod 5 is in the retracted state, the trigger 12 cannot trigger the detection unit 15 before the drying rack rises to the upper limit position, thus stopping the drying rack from rising.

[0057] In this application, the upper limit position refers to the position of the telescopic drying rod 5 within the storage groove on the ceiling. If the telescopic drying rod 5 is in the extended state, the trigger 12 can trigger the detection unit 15 before the drying rod rises to the upper limit position. The detection unit controls the drying rod to stop rising, preventing the extended telescopic drying rod 5 from hitting the ceiling. If the telescopic drying rod 5 is in the retracted state, it will not hit the ceiling during its normal rise to the storage position on the ceiling. Therefore, the trigger 12 cannot trigger the detection unit 15 before the drying rod rises to the upper limit position, and the detection unit will not control the drying rod to stop rising, allowing the drying rod to continue rising.

[0058] In this embodiment, stopping the drying rack when it reaches the upper limit position can be achieved through the active stopping of the drive unit, or by the drive unit stopping under the control of the detection unit 15 after the trigger 12 triggers the detection unit 15, or by the active stopping of the drive unit and the detection unit controlling the drive unit to stop working after being triggered by the trigger 12, all working together. The active stopping of the drive unit can be achieved by setting the stroke of the drive unit's winding cable and by the drive unit detecting the change in resistance when the drying rack reaches the upper limit position.

[0059] In a preferred embodiment of this application, the telescopic drying rod 5 can trigger the detection unit 15 whether it is in the extended or retracted state. When the telescopic drying rod 5 is in the extended state, the detection unit 15 is triggered before the drying rack reaches its upper limit position; when the telescopic drying rod 5 is in the retracted state, the detection unit 15 is triggered when the drying rack reaches its upper limit position. If the telescopic drying rod 5 is in the extended state, the trigger 12 triggers the detection unit 15 before the drying rack reaches its upper limit position, thereby causing the detection unit to control the drying rack to stop rising and prevent the extended telescopic drying rod 5 from continuing to rise and colliding with the ceiling. If the telescopic drying rod 5 is in the retracted state, the trigger 12 does not trigger the detection unit 15 before the drying rack reaches its upper limit position; however, when the drying rack reaches its upper limit position, the trigger 12 immediately triggers the detection unit 15. That is, the trigger 12 can also trigger the detection unit 15 when the telescopic drying rod 5 is in the retracted state, allowing the trigger to trigger the detection unit 15 when the drying rack reaches its upper limit position, and the detection unit to control the drying rack to stop rising.

[0060] Thus, when the clothes drying rack lifting limit mechanism 1 of this application is applied to a clothes drying rack, when the telescopic drying rod 5 is in the extended state, if the drive unit of the clothes drying rack drives the telescopic drying rod 5 and the trigger 12 to rise to a preset position other than the upper limit position, the trigger 12 will trigger the detection unit 15 to stop the drive unit, preventing the telescopic drying rod 5 from continuing to rise and causing a collision with the ceiling. When the telescopic drying rod 5 is in the retracted state, the drive unit will not trigger the detection unit 15 before driving the telescopic drying rod 5 and the trigger 12 to rise to the upper limit position. The drive unit can continue to drive the telescopic drying rod 5 to rise and be stored in the storage slot on the ceiling. When the telescopic drying rod 5 is stored in the storage slot on the ceiling, the detection unit 15 will be triggered to stop the drive unit, preventing the telescopic drying rod 5 from continuing to rise and damaging the ceiling or the drive unit.

[0061] In one embodiment, the trigger 12 has a first position and a second position.

[0062] When the telescopic drying rod 5 is in the extended state, the trigger 12 is in the first position. When the trigger 12 is in the first position, the trigger 12 can trigger the detection unit 15 when it rises to the first preset height.

[0063] When the telescopic drying rod 5 is in the retracted state, the trigger 12 is in the second position. When the trigger 12 is in the second position, the trigger 12 rises to the second preset height to trigger the detection unit 15.

[0064] The first preset height is lower than the second preset height, which is the upper limit position, where the telescopic drying rod 5 is stored in the storage slot on the ceiling. The first preset height is lower than the second preset height, which is the position of the telescopic drying rod 5 before it enters the storage slot.

[0065] Therefore, when the telescopic drying rod 5 is in the extended state, the detection unit 15 is triggered at the first preset height before it enters the storage slot, causing the telescopic drying rod 5 to stop rising and preventing it from hitting the top. When the telescopic drying rod 5 is in the retracted state, the detection unit 15 is not triggered before the telescopic drying rod 5 enters the storage slot. The telescopic drying rod 5 can enter the storage slot, and after entering the storage slot, it reaches the second preset height, at which point the detection unit 15 is triggered, causing the telescopic drying rod 5 to stop in the storage slot and preventing it from hitting the top if it continues to rise.

[0066] In another embodiment, the trigger 12 has a first position and a second position.

[0067] When the telescopic drying rod 5 is in the extended state, the trigger 12 is in the first position. When the trigger is in the first position, the trigger 12 rises to a first preset height to trigger the detection unit 15.

[0068] When the telescopic drying rod 5 is in the retracted state, the trigger 12 is in the second position. With the trigger in the second position, the detection unit 15 will not be triggered regardless of the height to which the trigger 12 rises.

[0069] The first preset height is lower than the upper limit position. Therefore, when the telescopic drying rod 5 is in the extended state, the detection unit 15 will be triggered at the first preset height before it enters the storage slot, causing the telescopic drying rod 5 to stop rising and preventing it from hitting the top. When the telescopic drying rod 5 is in the retracted state, the detection unit 15 will not be triggered during the entire rising process. In this case, the telescopic drying rod 5 can be controlled to stop rising after entering the storage slot by controlling its rising stroke, thus preventing it from hitting the top if it continues to rise.

[0070] Furthermore, when the trigger 12 is in the first position and triggers the detection unit 15, the distance between the drying rack and the detection unit 15 is the first distance. When the trigger 12 is in the second position and triggers the detection unit 15, the distance between the drying rack and the detection unit 15 is the second distance, and the first distance is greater than the second distance. When the trigger 12 triggers the detection unit 15 in the first position, the drying rack has not risen to its limit position, and the first distance is farther from the detection unit 15. The distance of the trigger 12 in the second position is the distance when the drying rack rises to its limit position, and at this time, the second distance is the minimum distance. Therefore, when the trigger 12 switches to the first position, it is closer to the detection unit 15 than when the trigger 12 switches to the second position. This means that when the trigger 12 is in the second position, it needs to rise a greater height to enter the storage slot before triggering the detection unit 15, thus achieving the goal of stopping the rise of the telescopic drying rod 5 in the storage slot after it enters the retracted state.

[0071] Optionally, the trigger 12 can be horizontally moved on the drying rack and can switch between a first position and a second position by the telescopic drive of the telescopic drying rod 5.

[0072] It is understood that in other embodiments, the trigger 12 may also slide downwards onto the drying rack, switching between a first position and a second position via the telescopic drive of the telescopic drying rod 5. Alternatively, the trigger 12 may also slide vertically onto the drying rack, switching between a first position and a second position via the telescopic drive of the telescopic drying rod 5.

[0073] Optionally, the trigger 12 is rotatably movable on the drying rack, and switches between a first position and a second position by the telescopic drive of the telescopic drying rod 5.

[0074] In one embodiment, the detection unit 15 includes a first detection element and a second detection element. Both the first and second detection elements can control the drying rack to stop rising. When the trigger 12 is in the first position, the trigger 12 rising to a first preset height can trigger the first detection element. When the trigger 12 is in the second position, the trigger 12 rising to a second preset height can trigger the second detection element. That is, the trigger 12 being in the first position and the trigger 12 being in the second position correspond to the first detection element and the second detection element, respectively.

[0075] Furthermore, the detection unit 15 can be an infrared sensor, a thermal sensor, a grating, a micro switch, a spring contact, a Hall sensor, or a reed switch, etc.

[0076] In one embodiment, the clothes drying rack lifting limit mechanism 1 further includes a base 11 disposed on the drying rack and capable of rising and falling with the drying rack. The trigger 12 is movably mounted on the base 11 and can switch between a first position and a second position relative to the base 11.

[0077] In this embodiment, the trigger 12 is mounted on the drying rack via the base 11. The connection between the trigger 12 and the base 11 can be either a rotating installation or a sliding installation. The trigger 12 is moved by the telescopic drying rod 5, allowing it to switch back and forth between a first position and a second position. The trigger 12 is in transmission cooperation with the telescopic drying rod 5 of the clothes drying machine, so that when the telescopic drying rod 5 is in the extended state, the trigger 12 switches to the first position, and when the telescopic drying rod 5 is in the retracted state, the trigger 12 switches to the second position.

[0078] When the telescopic drying rod 5 is in the extended state, the trigger 12 switches to the first position. At this time, the detection unit 15 is located on the path of the trigger 12 moving upward. Before the telescopic drying rod 5 rises to the upper limit position, the trigger 12 can trigger the detection unit 15, thereby stopping the telescopic drying rod 5 from rising.

[0079] When the telescopic drying rod 5 is in the retracted state, the trigger 12 will switch to the second position. At this time, the detection unit 15 is located at the limit trigger position that the trigger 12 can reach, so that when the drying rack rises to the upper limit position, the trigger 12 can still trigger the detection unit 15, but the trigger 12 cannot trigger the detection unit 15 before the drying rack rises to the upper limit position.

[0080] Furthermore, refer to Figure 1 , Figure 5 and Figure 6As shown, the trigger 12 has a hinge end rotatably mounted on the base 11 and a trigger end that rotates around the base 11. When the telescopic drying rod 5 is in the extended state, the trigger 12 rotates upward to the first position. At this time, the trigger 12 is vertically set, the trigger end is at its highest point, and the trigger end is directly above the hinge end. The detection unit 15 is located directly above the trigger end of the trigger 12, so that the trigger 12 can trigger the detection unit 15 before the drying rod rises to the upper limit position, thus stopping the drying rod from rising. When the telescopic drying rod 5 is in the retracted state, the trigger 12 rotates downward to the second position. At this time, the trigger 12 is horizontally set, the trigger end and the hinge end are on the same horizontal line, and the detection unit 15 is located directly above the hinge end of the trigger 12. Thus, when the telescopic drying rod 5 in the retracted state rises to the upper limit position, the hinge end of the trigger 12 triggers the detection unit 15, causing the drying rod to stop rising. Finally, the telescopic drying rod 5 in the retracted state stops exactly in the storage groove of the ceiling. The clothes drying rack lifting limit mechanism 1 of this application cooperates with the trigger 12 rotatably installed below the detection unit 15 through the detection unit 15. The clothes drying rack lifting limit mechanism 1 has better overall integrity and more sensitive triggering.

[0081] In one embodiment, the clothes drying rack lifting limit mechanism 1 further includes an elastic reset member 13. The elastic reset member 13 is connected to the trigger member 12 and the base 11, and the elastic reset member 13 can apply elastic force to allow the trigger member 12 to switch to a first position or a second position.

[0082] When the trigger 12 switches between the first position and the second position, the switching can be achieved by the action of the elastic reset member 13 or other reversing mechanism, or by the action of gravity.

[0083] Example 1: When the telescopic drying rod 5 is extended, the telescopic drying rod 5 abuts against the trigger 12, which pushes the trigger 12 to move, causing the trigger 12 to switch to the first position. When the telescopic drying rod 5 is retracted, the telescopic drying rod 5 separates from the trigger 12. At this time, the trigger 12 can switch to the second position under the action of the elastic reset member 13 or other reversing mechanism, or it can switch to the second position under the action of gravity.

[0084] Example 2: When the telescopic drying rod 5 is extended, it separates from the trigger 12. The trigger 12 can switch to the first position under the action of the elastic reset member 13 or other reversing mechanisms. When the telescopic drying rod 5 is retracted, it abuts against the trigger 12, pushing the trigger 12. The trigger 12 overcomes the elastic force of the elastic reset member 13 or the force of other reversing mechanisms, causing it to switch to the second position.

[0085] Optionally, in a preferred embodiment, the trigger 12 is rotatably mounted on the base 11, and the elastic reset member 13 is a torsion spring mounted on the base 11. One torsion shaft of the elastic reset member 13 is connected to the base 11, and the other torsion shaft of the elastic reset member 13 is connected to the trigger 12. The detection unit 15 is located on the rotation path of the trigger 12. When there is no other external force, the trigger 12 automatically switches to the first position. Under the elastic force of the torsion spring, the trigger 12 can automatically switch and remain in the first position. This allows the telescopic drying rod 5 to trigger the detection unit 15 if it rises in the extended state. The detection unit 15 sends a signal to control the drive unit to stop working, preventing the telescopic drying rod 5 from hitting the top, thus achieving electronic induction-based anti-top contact of the clothes dryer.

[0086] In other embodiments, the trigger 12 can be switched to the first position by a compression spring, magnetism, or other force. For example, when the trigger 12 is slidably mounted on the base 11, the elastic reset member 13 can be a compression spring, and the trigger 12 slides to the first position under the action of the compression spring.

[0087] Optionally, the clothes drying rack lifting limit mechanism 1 further includes a drive member 14 slidably mounted on the base 11. A trigger member 12 is rotatably mounted on the base 11, and the trigger member 12 is driven by the drive member 14 to engage with the telescopic drying rod 5 of the clothes drying rack. The detection unit 15 is located above the trigger member 12. When the trigger member 12 rotates in the direction closer to the detection unit 15, it switches to the first position. For example, one end of the drive member 14 is connected to the trigger member 12, and the other end of the drive member 14 is located on the movement path of the telescopic drying rod 5 when it is shortened. When the telescopic drying rod 5 is retracted, it can push the drive member 14, which in turn pushes the trigger member 12 to rotate and switch to the second position. When the telescopic drying rod 5 is extended, the drive member 14 pushes the trigger member 12 to rotate and switch to the first position.

[0088] The drive component 14 is movably mounted on the base 11. The drive component 14 can be rotatably mounted on the base 11 or slidably mounted on the base 11. This application takes the slidable mounting as an example. The drive component 14 is located on the telescopic path of the telescopic drying rod 5. The drive component 14 is connected to the trigger component 12 so that the trigger component 12 overcomes the elastic force of the elastic reset component 13 and switches to the second position.

[0089] Furthermore, the drive component 14 is slidably mounted on the base 11. An elastic reset component 13 is installed on the base 11. When the telescopic drying rod 5 is extended, it separates from the drive component 14. The elastic reset component 13 causes the trigger component 12 to automatically switch to the first position. When the telescopic drying rod 5 retracts and abuts against the drive component 14, the drive component 14 pushes the trigger component 12 to rotate, and the trigger component 12 switches to the second position. In this embodiment, by setting the elastic reset component 13 to drive the trigger component 12 to automatically switch to the first position, compared to the method where the telescopic drying rod 5 and the drive component 14 remain connected and the drive component 14 is pushed to slide so that the trigger component 12 switches to the first position, this embodiment can ensure that the extended length of the telescopic drying rod 5 can be designed to be relatively long without needing a long drive component 14 to match the extended length of the telescopic drying rod 5.

[0090] Reference Figure 2 Furthermore, a rotating shaft 16 is mounted on the base 11, and the trigger 12 is rotatably mounted on the base 11 via the rotating shaft 16. A rocker arm 17 is mounted on the rotating shaft 16, and a driving member 14 is slidably mounted on the base 11. The driving member 14 is provided with a guide groove 141, and the rocker arm 17 slides radially along the rotating shaft 16 in the guide groove 141. Specifically, there are two rotating shafts 16, both integrally formed with the lower end of the trigger 12. The base 11 includes a bottom shell 112 and a cover plate 113 detachably mounted on the bottom shell 112. The bottom shell 112 and the cover plate 113 together form a shaft hole, and the rotating shaft 16 is rotatably mounted in the shaft hole. Part of the elastic reset member 13 can be housed inside the bottom shell 112. The rocker arm 17 is located at the end of one of the rotating shafts 16 and is integrally formed with the rotating shaft 16. The rocker arm 17 is L-shaped, and the guide groove 141 extends radially along the rotating shaft 16. The rocker arm 17 can slide relative to the drive member 14 along the extension direction of the guide groove 141. When the drive member 14 slides, the drive member 14 can push the rocker arm 17 to slide along the guide groove 141, thereby causing the trigger member 12 to rotate. The trigger member 12 is cuboid in shape. When the trigger member 12 is rotated to a vertical position, the trigger member 12 is in the first position, at which time the trigger member 12 can trigger the detection unit 15 above it. When the trigger member 12 is rotated to a horizontal position, the trigger member 12 moves away from the detection unit 15.

[0091] In one embodiment, the base 11 is provided with a sliding channel 111 extending horizontally. The drive member 14 is slidably disposed in the sliding channel 111 along the horizontal direction. The drive member 14 is provided with a limiting plate 142. The sliding channel 111 is located between the limiting plate 142 and the guide groove 141. The base 11 is located on the moving path of the limiting plate 142. When the drive member 14 pushes the trigger member 12 to switch to the second position, the trigger member 12 is just horizontally positioned. At this time, the limiting plate 142 abuts against the edge of the sliding channel 111 of the base 11, preventing the trigger member 12 from continuing to rotate beyond its stroke and hitting the base 11 or other parts of the clothes dryer.

[0092] Optionally, one end of the driving member 14 is provided with a top plate 143, the guide groove 141 is provided at the other end of the driving member 14, and the limiting plate 142 is located between the two ends of the driving member 14. The top plate 143 is used to abut against the telescopic drying rod 5. When the telescopic drying rod 5 is extended, the telescopic drying rod 5 can directly or indirectly abut against the top plate 143, thereby causing the driving member 14 to push the trigger member 12 to switch to the second position.

[0093] Reference Figures 3 to 6 This application also provides a clothes drying rack, including a main unit 2, a lifting mechanism 8, a drying rack, and a clothes drying rack lifting limit mechanism 1 as described in any of the above embodiments. The main unit 2 is mounted on the ceiling. The main unit 2 is equipped with a control unit and a drive unit.

[0094] The drying rack is mounted on the lifting mechanism 8 and connected to the main unit 2 via the lifting mechanism 8. The drying rack moves up and down under the drive of the lifting mechanism 8. The lifting mechanism can be a folding frame, a telescopic frame, or other similar mechanism. The drying rack includes a telescopic drying rod 5 that can be unfolded and retracted. Before the drying rack rises to its upper limit, the trigger 12 on it can trigger the detection unit 15 when the telescopic drying rod 5 is in the unfolded state. The control unit is connected to the detection unit 15 and connected to the lifting mechanism 8 via the drive unit. The control unit is used to control the lifting and lowering movement of the drying rack based on the signal fed back by the detection unit 15.

[0095] The drive unit is installed on the main unit 2 and is connected to the lifting mechanism 8 to extend and retract the lifting mechanism 8. The drive unit is electrically connected to the detection unit 15. The base 11 of the clothes drying rack lifting limit mechanism 1 is installed on the lifting mechanism 8. The detection unit 15 of the clothes drying rack lifting limit mechanism 1 is installed on the main unit 2. The lifting mechanism 8 is connected to the telescopic drying rod 5 to switch between the upper limit position of the storage slot in the ceiling and the drying position outside the storage slot in the ceiling. When the main unit 2 is installed on the ceiling, it is designed to accommodate the telescopic drying rod 5 in the retracted state. The detection unit 15 is installed on the main unit 2 and above the trigger 12. The detection unit 15 is located on the path of the trigger 12 when it moves upward when it switches to the first position. The drive unit is not shown in the figure. The drive unit includes a motor and a cable connected to the motor. In this embodiment, the lifting mechanism 8 is a scissor lift. The upper end of the lifting mechanism 8 is installed on the main unit 2, and the lower end of the lifting mechanism 8 can move up and down under the pull of the cable, thereby driving the telescopic drying rod 5 to rise and fall.

[0096] The telescopic drying rod 5 has an extended state and a retracted state. When the telescopic drying rod 5 is in the extended state and switched to the upper limit position, the trigger 12 triggers the detection unit 15 to control the drive unit to stop working. When the telescopic drying rod 5 is in the retracted state, the trigger 12 moves away from the detection unit 15. Thus, when the telescopic drying rod 5 is in the extended state, the trigger 12 switches to the first position under the action of the elastic reset member 13, and the trigger 12 bounces up a certain height. The detection unit 15 is located on the path of the trigger 12 moving upward. If the drive unit drives the telescopic drying rod 5 to rise at this time, before the telescopic drying rod 5 approaches the upper limit position of the ceiling, the trigger 12 will trigger the detection unit 15, causing the drive unit to stop working, thereby avoiding a collision with the ceiling caused by the telescopic drying rod 5 continuing to rise in the extended state. When the telescopic drying rod 5 is in the retracted state, the trigger 12 switches to the second position under the pushing and squeezing action of the telescopic drying rod 5. At this time, the detection unit 15 is not on the upward movement path of the trigger 12, so the upward movement of the trigger 12 will not trigger the detection unit 15, and the drive unit can work normally. The drive unit can either drive the telescopic drying rod 5 to continue rising to the upper limit position or drive the telescopic drying rod 5 to descend to the drying position. The clothes drying rack of this application is convenient to use and does not affect the clothes drying experience. When the telescopic drying rod 5 is in the retracted state, it can rise to the storage slot on the top ceiling. When the telescopic drying rod 5 is in the extended state, the drive unit can automatically stop working in advance, realizing the mechanical anti-collision top of the clothes drying rack. The clothes drying rack has strong stability and anti-interference ability.

[0097] Furthermore, the clothes drying rack also includes a connecting seat 6 installed on the lifting mechanism 8 and a support seat 7 installed on the connecting seat 6. The telescopic drying rod 5 slides on the support seat 7 to switch between an extended and retracted state, and the base 11 is installed on the support seat 7. Specifically, there are two connecting seats 6, spaced apart from left to right. Support seats 7 are installed at both the front and rear ends of the two connecting seats 6, and a telescopic drying rod 5 slides on both ends of each support seat 7, thus providing a total of four telescopic drying rods 5 on the two support seats 7. Each telescopic drying rod 5 is equipped with a clothes drying rack lifting limit mechanism 1, or two telescopic drying rods 5 share one clothes drying rack lifting limit mechanism 1. When the telescopic drying rod 5 sliding on the left end of the support seat 7 slides to the left relative to the support seat 7, the telescopic drying rod 5 switches to the extended state; when it slides to the right relative to the support seat 7 so that the telescopic drying rod 5 overlaps with the support seat 7, the telescopic drying rod 5 switches to the retracted state. Similarly, when the telescopic drying rod 5, which is slidably mounted on the right end of the support base 7, slides to the right relative to the support base 7, the telescopic drying rod 5 switches to the extended state. When it slides to the left relative to the support base 7 so that the telescopic drying rod 5 overlaps with the support base 7, the telescopic drying rod 5 switches to the retracted state.

[0098] It is understood that in other embodiments, the telescopic drying rod 5 may also include two interlocking tubes, and the telescopic drying rod 5 can switch between the extended state and the retracted state by the relative sliding of the two tubes.

[0099] In one embodiment, the support base 7 is provided with a rod groove. When the telescopic drying rod 5 is in the retracted state, the telescopic drying rod 5 is located in the rod groove, which prevents the telescopic drying rod 5 from being exposed and plays a role in dust and water protection.

[0100] Furthermore, the telescopic drying rod 5 is also provided with a guide channel, in which a guide rod 9 connected to the telescopic drying rod 5 slides. Through the cooperation of the guide rod 9 and the guide channel, the sliding of the telescopic drying rod 5 is made more stable.

[0101] Optionally, the telescopic drying rod 5 is equipped with a hanging ring or hanging hole to facilitate the positioning of clothes when drying them.

[0102] Optionally, multiple telescopic drying rods 5 can be used to increase the number of clothes drying rods. Multiple clothes drying rack lifting limit mechanisms 1 are available, each corresponding to one of the multiple telescopic drying rods 5. The drive component 14 of the clothes drying rack lifting limit mechanism 1 is located on the sliding path of the telescopic drying rod 5 or is connected to the telescopic drying rod 5.

[0103] Furthermore, there are multiple telescopic drying rods 5, with at least some of them interconnected. In this embodiment, there are four telescopic drying rods 5. Each of the four telescopic drying rods 5 can slide independently relative to the support base 7, or they can slide in pairs relative to the support base 7. That is, two of the telescopic drying rods 5 are connected by a linkage 4, allowing the two telescopic drying rods 5 to switch synchronously between the extended and retracted states. The two interconnected telescopic drying rods 5 share a single clothes drying rack lifting limit mechanism 1, which saves costs. The drive component 14 of this clothes drying rack lifting limit mechanism 1 is located on the sliding path of the linkage 4.

[0104] Meanwhile, the anti-collision control method for the clothes drying rack in this embodiment includes the following steps:

[0105] S10, start the drive unit of the clothes drying rack. The drive unit drives the lower end of the lifting mechanism 8 to extend and retract up and down, so that the lifting mechanism 8 drives the telescopic drying rod 5 to rise to the upper limit position or lower to the drying position, so that the telescopic drying rod 5 can be lowered to hang clothes or raised to store them in the storage slot on the ceiling.

[0106] S20, during the process of the drying rack rising, if the telescopic drying rod 5 is in the extended state, the trigger 12 will trigger the detection unit 15 before the drying rack reaches the upper limit position, and the drying rack will stop rising. In this step, during the process of the telescopic drying rod 5 rising to the upper limit position under the drive of the drive unit, the trigger 12 can trigger the detection unit 15 before the drying rack reaches the upper limit position, so that the detection unit 15 controls the drive unit to stop working, preventing the lifting mechanism 8 from continuing to drive the telescopic drying rod 5 to the upper limit position, and avoiding the telescopic drying rod 5 from continuing to rise in the extended state and colliding with the ceiling.

[0107] S30, during the rising of the drying rack, if the telescopic drying rod 5 is in a retracted state, before the drying rack reaches its upper limit position, the drive unit 14 pushes the trigger member 12. The trigger member 12 overcomes the elastic force of the elastic reset member 13 and moves away from the detection unit 15. The drive unit can then drive the lifting mechanism 8 to extend and retract vertically, so that the lifting mechanism 8 can raise the telescopic drying rod 5 to its upper limit position or lower it to the drying position. When the telescopic drying rod 5 is in a retracted state, it can be stored in the storage slot. During this process, the drive unit can freely raise or lower the telescopic drying rod 5 without it colliding with the ceiling.

[0108] S40, during the process of the drying rack rising, if the telescopic drying rod 5 is in a retracted state, the trigger 12 will trigger the detection unit 15 when the drying rack rises to the upper limit position, and the drying rack will stop rising. That is, when the drying rack rises to the upper limit position, the trigger 12 can trigger the detection unit 15, so that the drying rack stops rising and stops in the storage slot, avoiding the drying rack from hitting the top if it continues to rise.

[0109] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A clothes drying rack lifting limit mechanism, characterized in that, include: A trigger is movably mounted on the clothes drying rack and can rise and fall with the drying rack; the trigger is in transmission cooperation with the telescopic drying rod of the drying rack; The detection unit is located on the main unit of the clothes drying rack and is connected in communication with the control unit of the clothes drying rack; During the rising process of the drying rack, when the telescopic drying rod is in the extended state, the triggering element can trigger the detection unit to stop the drying rack from rising before it reaches the upper limit position; when the telescopic drying rod is in the retracted state, the triggering element cannot trigger the detection unit to stop the drying rack from rising before it reaches the upper limit position.

2. The clothes drying rack lifting limit mechanism according to claim 1, characterized in that, It also includes a base mounted on the drying rack and capable of rising and falling with the drying rack; a trigger is movably mounted on the base and can switch between a first position and a second position. When the telescopic drying rod is in the extended state, the trigger switches to the first position, and when the telescopic drying rod is in the retracted state, the trigger switches to the second position.

3. The clothes drying rack lifting limit mechanism according to claim 2, characterized in that, It also includes a drive component that is slidably mounted on the base; the trigger component is rotatably mounted on the base, and the trigger component is in transmission cooperation with the telescopic drying rod of the clothes dryer through the drive component; the detection unit is located above the trigger component, and the trigger component switches to the first position when it rotates in the direction close to the detection unit.

4. The clothes drying rack lifting limit mechanism according to claim 3, characterized in that, A rotating shaft is mounted on the base, and the trigger is rotatably mounted on the base via the rotating shaft. A rocker arm is mounted on the rotating shaft, and the drive component is slidably mounted on the base. The drive component is provided with a guide groove, and the rocker arm slides radially along the rotating shaft in the guide groove.

5. The clothes drying rack lifting limit mechanism according to claim 4, characterized in that, The base is provided with a sliding channel, the driving component is slidably disposed in the sliding channel, the driving component is provided with a limiting plate, and the sliding channel is located between the limiting plate and the guide groove.

6. The clothes drying rack lifting limit mechanism according to claim 4, characterized in that, One end of the driving component is provided with a top plate, and the guide groove is provided at the other end of the driving component.

7. The clothes drying rack lifting limit mechanism according to claim 2, characterized in that, It also includes an elastic reset member; the elastic reset member connects the trigger and the base and applies an elastic force to switch the trigger to the first position.

8. The clothes drying rack lifting limit mechanism according to claim 7, characterized in that, The elastic reset element is a torsion spring and is mounted on the base. One torsion axis of the torsion spring is connected to the base, and the other torsion axis of the torsion spring is connected to the trigger element.

9. A clothes drying rack, characterized in that, Includes a main unit, a lifting mechanism, a drying rack, and a clothes drying rack lifting limit mechanism as described in any one of claims 1 to 8; The drying rack is mounted on the lifting mechanism and connected to the main unit through the lifting mechanism. The drying rack moves up and down under the drive of the lifting mechanism. The drying rack includes a telescopic drying rod that can be extended and retracted; before the drying rack rises to its upper limit, a trigger on it can trigger a detection unit when the telescopic drying rod is in the extended state. The host is equipped with a control unit and a drive unit; the control unit is connected to the detection unit and connected to the lifting mechanism through the drive unit, and is used to control the lifting and lowering movement of the drying rack according to the signal fed back by the detection unit.

10. The clothes drying rack according to claim 9, characterized in that, The drying rack also includes a connecting seat installed on the lifting mechanism and a support seat installed on the connecting seat. The telescopic drying rod is slidably mounted on the support seat to switch between an extended state and a retracted state. The trigger is installed on the support seat.

11. The clothes drying rack according to claim 10, characterized in that, The support base is provided with a rod groove, and when the telescopic drying rod is in the retracted state, the telescopic drying rod is located in the rod groove.

12. The clothes drying rack according to claim 9, characterized in that, There are multiple telescopic drying rods; at least some of the telescopic drying rods are linked together. or The clothes drying rack has multiple lifting limit mechanisms, each corresponding to one of the multiple telescopic drying rods.

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