Lifting device, clothes airing machine and control method of clothes airing machine

Abstract

The invention relates to the technical field of household appliances, and discloses a lifting device, a clothes airing machine and a control method of the clothes airing machine, the lifting device comprises a lifting rope, a winding wheel, a light-emitting component and a counting component, the winding wheel is made of a light-transmitting material, a plurality of winding grooves are formed in the winding wheel, and the lifting rope can be wound in the winding grooves. The light-emitting component is used for emitting light to the winding wheel, the winding wheel can be projected to the counting component under the action of the light emitted by the light-emitting component, and the counting component can calculate the number of winding turns of the lifting rope on the winding wheel according to the projection of the winding wheel. The mode that the current position of the clothes airing rod is judged by calculating the number of winding circles of the lifting rope through cooperation of the light-emitting component and the counting component is adopted, detection is more direct and accurate, multiple position switches do not need to be arranged, the control logic and structural design of the clothes airing machine can be simplified, and the manufacturing cost of the clothes airing machine is reduced. And when the number of winding turns of the lifting rope reaches the maximum or minimum, the clothes airing rod is controlled to stop lifting, so that the clothes airing machine can be prevented from being broken down, and the use safety is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a lifting device, a clothes airing machine and a control method thereof. BACKGROUND

[0002] The clothes airing machine mainly comprises a main machine and an airing assembly arranged below the main machine in a lifting manner. The main machine is usually fixed to the ceiling of a balcony, and the airing assembly is connected to the main machine through a traction member such as a steel wire rope. The height of the airing assembly can be adjusted through the steel wire rope to meet the airing needs of users.

[0003] In the prior art, multiple position switches are arranged in the main machine of the clothes airing machine. The position switches are used to determine whether the airing assembly is raised to an upper limit position and a lower limit position. When the position switch corresponding to the upper limit position or the lower limit position is triggered or disconnected, the clothes airing machine controls the airing assembly to stop lifting. The above design circuit is complex, the mechanical transmission structure is also complex, and the design cost of the clothes airing machine is increased.

[0004] Therefore, there is an urgent need for a lifting device, a clothes airing machine and a control method thereof to solve the above problems. SUMMARY

[0005] Based on the above problems, the purpose of the present application is to provide a lifting device, a clothes airing machine and a control method thereof, which can simplify the control logic of the clothes airing machine and make the structure design simpler while ensuring the safety of the clothes airing machine.

[0006] To achieve the above purpose, the present application adopts the following technical solutions:

[0007] In a first aspect, a lifting device is provided, comprising:

[0008] A lifting rope;

[0009] A winding wheel made of a light-transmitting material, the winding wheel being provided with a plurality of winding grooves, and the lifting rope being capable of being wound on the plurality of winding grooves;

[0010] A light-emitting component for emitting light to the winding wheel;

[0011] A counting component, the winding wheel being capable of being projected on the counting component under the action of the light emitted by the light-emitting component, and the counting component being capable of calculating the number of turns of the lifting rope on the winding wheel according to the projection of the winding wheel.

[0012] As an alternative of the lifting device of the present application, the winding wheel is a hollow shell structure, and the diameter of the winding wheel gradually decreases from the first end to the second end, one of the light emitting component and the counting component is arranged at the small-diameter end of the winding wheel, and the other of the light emitting component and the counting component is arranged at the large-diameter end of the winding wheel, and the winding wheel is projected to the counting component along the axial direction.

[0013] As an alternative of the lifting device of the present application, the winding wheel is a hollow shell structure, and the light emitting component is arranged in the winding wheel, and at least one side of the winding wheel is arranged with the counting component, and the winding wheel is projected to the counting component along the direction perpendicular to the axial direction of the winding wheel; or,

[0014] The winding wheel is a hollow structure, the counting component is arranged in the winding wheel, and the light emitting component is arranged outside the winding wheel and on one side of the winding wheel, and the winding wheel is projected to the counting component along the direction perpendicular to the axial direction of the winding wheel.

[0015] As an alternative of the lifting device of the present application, the winding wheel is a hollow structure, and the light emitting component and the counting component are arranged on opposite sides of the winding wheel, and the winding wheel is projected to the counting component along the direction perpendicular to the axial direction of the winding wheel.

[0016] As an alternative of the lifting device of the present application, the light emitting component includes a light emitting diode for emitting a light beam towards the winding wheel, and the counting component includes a photoelectric sensor for obtaining the winding number of the lifting rope according to the number of winding grooves on the projected winding wheel.

[0017] In a second aspect, an airing machine is provided, which comprises a main machine, an airing rod and the lifting device as described above, the main machine is provided with a control module, the airing rod is connected with the free end of the lifting rope, and the control module can control the rotating direction of the winding wheel according to the winding number of the lifting rope obtained by the counting component after receiving the user instruction, so as to drive the airing rod to ascend or descend by the lifting rope.

[0018] In a third aspect, an airing machine control method is provided, which is applied to the airing machine as described above, and the airing machine control method comprises the following steps:

[0019] An operation instruction of the airing machine is obtained;

[0020] The winding number of the lifting rope on the winding wheel measured by the counting component is obtained;

[0021] The control module controls the airing rod to ascend or descend according to the operation instruction and the winding number of the lifting rope.

[0022] As an optional solution of the clothes drying machine control method, the step of measuring the winding number of the lifting rope on the winding wheel comprises:

[0023] identifying the number R1 of winding grooves in the projection of the winding wheel, wherein the winding groove without winding the lifting rope can project to the counting component;

[0024] obtaining the winding number T of the lifting rope on the winding wheel, T=R0-R1, wherein R0 is the total number of winding grooves on the winding wheel.

[0025] As an optional solution of the clothes drying machine control method, the winding wheel is a hollow shell structure, the light-emitting component is arranged in the winding wheel, and the counting components are arranged on opposite sides of the winding wheel, and the two counting components are counting component one and counting component two, respectively.

[0026] The step of measuring the winding number of the lifting rope on the winding wheel comprises:

[0027] obtaining the winding number T1 of the lifting rope measured by the counting component one;

[0028] obtaining the winding number T2 of the lifting rope measured by the counting component two;

[0029] determining the winding number T of the lifting rope on the winding wheel, T=min[T1, T2].

[0030] As an optional solution of the clothes drying machine control method, the operation instruction comprises a lifting instruction and a descending instruction, the winding wheel is provided with R0 winding grooves, the maximum winding number Tmax of the lifting rope is R0, corresponding to the upper limit position of the clothes drying rod, and the minimum winding number Tmin of the lifting rope is 0, corresponding to the lower limit position of the clothes drying rod.

[0031] If the operation instruction is the lifting instruction, it is judged whether the winding number T of the lifting rope is equal to Tmax, if yes, the winding wheel is controlled to stop rotating, and if no, the clothes drying rod is controlled to be lifted to a first preset height.

[0032] If the operation instruction is the descending instruction, it is judged whether the winding number T of the lifting rope is equal to Tmin, if yes, the winding wheel is controlled to stop rotating, and if no, the clothes drying rod is controlled to be lowered to a second preset height.

[0033] The clothes drying machine control method has the following beneficial effects:

[0034] The lifting device, the clothes airing machine and the control method thereof provided by the application, after the clothes airing machine is started, the light emitting component projects light to the winding wheel, so that the winding wheel projects to the counting component. Since the winding wheel is made of light-transmitting material, when all the winding grooves are not wound with the lifting rope, the plurality of winding grooves on the winding wheel can project to the counting component. When the winding groove is wound with the lifting rope, the corresponding winding groove is blocked and cannot transmit light, so that the number of the winding grooves projecting to the counting component is reduced. The counting component can calculate the winding number of the lifting rope on the winding wheel according to the total number of the winding grooves and the number of the winding grooves projecting to the counting component. The control module can obtain the current position of the clothes airing rod according to the winding number of the lifting rope on the winding wheel. After the user issues an operation instruction, the control module controls the clothes airing rod to ascend or stop ascending according to the operation instruction of the user and the current position of the clothes airing rod. In this way, the winding wheel can be prevented from continuing to rotate when the clothes airing rod is in the highest position or the lowest position, and the clothes airing machine can be prevented from malfunctioning. The winding number of the lifting rope is calculated by the light emitting component and the counting component to determine the current position of the clothes airing rod. The detection is more direct and accurate, and a plurality of position switches do not need to be arranged, so that the control logic and the structural design of the clothes airing machine can be simplified, and the manufacturing cost of the clothes airing machine can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the contents of the embodiments of the present application and the drawings.

[0036] Figure 1 is a schematic view of the winding wheel and the lifting rope provided by the first embodiment of the present application;

[0037] Figure 2 is a position schematic view of the winding wheel, the light emitting component and the counting component provided by the first embodiment of the present application;

[0038] Figure 3 is a projection schematic view of the winding wheel provided by the first embodiment of the present application;

[0039] Figure 4 is a position schematic view of the winding wheel, the light emitting component and the counting component provided by the second embodiment of the present application;

[0040] Figure 5 is a projection schematic view of the winding wheel provided by the second embodiment of the present application;

[0041] Figure 6 is a position schematic view of the winding wheel, the light emitting component and the counting component provided by the third embodiment of the present application;

[0042] Figure 7 is a position diagram of the winding wheel, the light-emitting component and the counting component provided by the fourth embodiment of the present application;

[0043] Figure 8 is a first flow chart of the clothes airing machine control method provided by the specific embodiment of the present application;

[0044] Figure 9 is a second flow chart of the clothes airing machine control method provided by the specific embodiment of the present application;

[0045] Figure 10 is a third flow chart of the clothes airing machine control method provided by the specific embodiment of the present application.

[0046] In the figure:

[0047] 1-lifting rope; 2-winding wheel; 3-light-emitting component; 4-counting component;

[0048] 21-winding groove. DETAILED DESCRIPTION

[0049] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects reached more clear, the technical solutions of the embodiments of the present application will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0050] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0051] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or it can be detachable connection; it can be mechanical connection, or it can be electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] Example 1

[0053] like Figures 1 to 3 As shown, this embodiment provides a lifting device that simplifies the control logic of a clothes drying rack and improves its safety. The lifting device includes a lifting rope 1, a reel 2, a light-emitting component 3, and a counting component 4.

[0054] The winding reel 2 is made of a light-transmitting material, see reference. Figure 1 The winding reel 2 is provided with multiple winding grooves 21, and the lifting rope 1 can be wound around the multiple winding grooves 21. The light-emitting component 3 is used to emit light to the winding reel 2, and the winding reel 2 can be projected onto the counting component 4 under the action of the light emitted by the light-emitting component 3. The counting component 4 can calculate the number of turns of the lifting rope 1 on the winding reel 2 based on the projection of the winding reel 2.

[0055] For example, the light-transmitting material can be transparent plastic, acrylic, or other materials, as long as it can transmit light and meet the strength requirements of the winding wheel 2.

[0056] In this embodiment, the lifting device projects light from the light-emitting component 3 onto the winding reel 2 after the clothes dryer is started, causing the winding reel 2 to be projected onto the counting component 4. Since the winding reel 2 is made of a light-transmitting material, when none of the winding grooves 21 are wound with the lifting rope 1, all the winding grooves 21 on the winding reel 2 can be projected onto the counting component 4. However, when the lifting rope 1 is wound inside the winding grooves 21, the corresponding winding grooves 21 are blocked and cannot transmit light, thus reducing the number of winding grooves 21 projected onto the counting component 4. The counting component 4 can calculate the number of turns of the lifting rope 1 on the winding reel 2 based on the total number of winding grooves 21 and the number of winding grooves 21 projected onto the counting component 4. The control module can obtain the current position of the clothes drying rod based on the number of turns of the lifting rope 1 on the winding reel 2. When the user issues an operation command, the control module controls the clothes drying rod to rise or stop rising or falling based on the user's operation command and the current position of the clothes drying rod. This design effectively prevents the winding reel 2 from continuing to rotate when the clothesline is at its highest or lowest position, thus avoiding malfunctions in the clothesline dryer. The method of determining the current position of the clothesline by calculating the number of turns of the lifting rope 1 using the light-emitting component 3 and the counting component 4 is more direct and accurate. Furthermore, it eliminates the need for multiple position switches, simplifying the control logic and structural design of the clothesline dryer and reducing its manufacturing costs.

[0057] Optionally, see Figure 1 and Figure 2The winding reel 2 has a hollow shell structure, and its diameter gradually decreases from its first end to its second end. One of the light-emitting component 3 and the counting component 4 is arranged at the small-diameter end of the winding reel 2, and the other of the light-emitting component 3 and the counting component 4 is arranged at the large-diameter end of the winding reel 2. The winding reel 2 is projected onto the counting component 4 along its axial direction. That is, the winding reel 2 is frustoconical in shape. This arrangement allows it to project a circle onto one side of the counting component 4. When the lifting rope 1 is not wound in any of the winding grooves 21, all of the winding grooves 21 can be projected onto one side of the counting component 4. When the lifting rope 1 is wound in some of the winding grooves 21 at one end of the winding reel 2, the remaining winding grooves 21 can still be projected onto the counting component 4, thus achieving accurate detection of the number of turns of the lifting rope 1 on the winding reel 2. Since the diameter of the circle containing each winding groove 21 of the winding wheel 2 is fixed, the length of the lifting rope 1 that winds around the corresponding winding groove 21 is also fixed. The current position of the clothes drying rod can be determined based on the total number of turns of the lifting rope 1 on the winding wheel 2.

[0058] In this embodiment, as Figure 2 As shown, the light-emitting component 3 is located at the small diameter end of the winding reel 2. Figure 2 (The arrow in the image points in the direction of the light beam). The counting component 4 is located at the large-diameter end of the winding reel 2. The light emitted by the light-emitting component 3 can pass through the unwound winding groove 21 of the lifting rope 1 to form a projection of the outline of the winding groove 21 on the counting component 4, such as... Figure 3 As shown, the unshaded areas indicate that the corresponding winding groove 21 is not wound with the lifting rope 1, while the shaded areas indicate that the corresponding winding groove 21 is wound with the lifting rope 1. Placing the light-emitting component 3 at the small-diameter end of the winding wheel 2 can make the light illumination more uniform and ensure the projection effect.

[0059] Of course, in other embodiments, the light-emitting component 3 may be arranged at the large-diameter end of the winding reel 2, and the counting component 4 may be arranged at the small-diameter end of the winding reel 2.

[0060] Optionally, the light-emitting component 3 includes a light-emitting diode for emitting a light beam toward the winding reel 2, and the counting component 4 includes a photoelectric sensor for obtaining the number of turns of the lifting rope 1 based on the number of winding grooves 21 on the projected winding reel 2.

[0061] Specifically, the light can be projected to the counting component 4 through the winding groove 21 without the hoisting rope 1, and the winding groove 21 with the hoisting rope 1 is blocked by the hoisting rope 1, so that the projection of the winding groove 21 on the side of the counting component 4 is solid. Therefore, the photoelectric sensor can detect the number of the winding groove 21 without the hoisting rope 1 by detecting the light intensity in the projection and converting the light signal into a digital signal. Then, the actual winding number of the hoisting rope 1 on the winding wheel 2 can be obtained by subtracting the total number of the winding groove 21 provided on the winding wheel 2 from the number of the winding groove 21 without the hoisting rope 1. The detection speed of the photoelectric sensor is fast and the detection accuracy is high, so that the detection accuracy of the winding number of the hoisting rope 1 can be ensured, and the automatic control of the clothes drying rod can be easily realized.

[0062] Optionally, the winding wheel 2 is a hollow shell structure, and the hoisting device further comprises a communication line located in the winding wheel 2 and used for communication connection between the counting component 4 and a control module of the clothes drying machine. The hollow design of the winding wheel 2 can provide wiring space for the communication line, ensure the neatness and beauty of the outside of the winding wheel 2, and prevent external structures from interfering with the signal transmission of the communication line, so that the detection result is more accurate.

[0063] In the embodiment, the hoisting rope 1 is a steel wire rope, and the hoisting device further comprises a rotating motor, an output end of the rotating motor is in transmission connection with the winding wheel 2, and the rotating motor is used for driving the winding wheel 2 to rotate. The rotating motor is in communication connection with the control module, and when receiving an operation instruction of a user, the control module controls the rotating motor to start, so as to drive the winding wheel 2 to rotate forward or reversely, so that the steel wire rope is wound or unwound, and the clothes drying rod is driven to ascend or descend, so as to adjust the ascending and descending height of the clothes drying rod. Exemplarily, the output end of the rotating motor is in transmission connection with the winding wheel 2 through a gear transmission structure, so that the rotation of the winding wheel 2 is more stable, and the rotation speed is more easily controlled.

[0064] Further, two winding wheels 2 are provided, the hoisting ropes 1 on the two winding wheels 2 are respectively connected to two ends of the clothes drying rod, and the rotating motor can drive the two winding wheels 2 to rotate synchronously, so that the two ends of the clothes drying rod ascend and descend synchronously, and the ascending and descending stability of the clothes drying rod is improved.

[0065] Further, the hoisting device can further comprise a scissors frame, one end of the scissors frame is connected to a main machine of the clothes drying machine, the other end of the scissors frame is connected to the clothes drying rod, and the scissors frame is adaptively telescopic when the winding wheel 2 winds or releases the hoisting rope 1, so that the ascending and descending stability of the clothes drying rod is further improved.

[0066] Embodiment two

[0067] The embodiment provides a hoisting device, which is different from the hoisting device in the embodiment one in that:

[0068] Optionally, referring to Figure 4 and Figure 5 , the winding wheel 2 is a hollow shell structure, and the light emitting component 3 is arranged in the winding wheel 2. Figure 4(The arrow in the diagram indicates the direction of light illumination). A counting component 4 is arranged on at least one side of the winding reel 2, and the winding reel 2 projects onto the counting component 4 in a direction perpendicular to its axis. That is, the light generated by the light-emitting component 3 passes through the winding reel 2 and forms a projection on one side of the counting component 4, such as... Figure 5 As shown, the unshaded parts on the counting component 4 represent the corresponding winding groove 21 where the lifting rope 1 is not wound, and the shaded parts represent the corresponding winding groove 21 where the lifting rope 1 is wound. The number of winding grooves 21 where the lifting rope 1 is not wound in the projection is detected by the photoelectric sensor. The number of windings of the lifting rope 1 can be calculated by subtracting the total number of winding grooves 21 on the winding wheel 2 from the number of winding grooves 21 where the lifting rope 1 is not wound.

[0069] In this embodiment, as Figure 4 As shown, counting components 4 are arranged on opposite sides of the outer side of the reel 2. Two counting components 4 are defined as counting component one and counting component two. When the clothes drying machine is started, counting component one will measure the number of turns T1 of the lifting rope 1, and counting component two will measure the number of turns T2 of the lifting rope 1. When determining the number of turns T of the lifting rope 1 on the reel 2, the minimum value between T1 and T2 is taken. Since the winding groove 21 may not be fully wound with the lifting rope 1, the number of turns of the lifting rope 1 measured by counting component one and counting component two may not be equal. In this case, taking the minimum value of the two can more accurately determine the actual number of turns of the lifting rope 1, resulting in more accurate detection data.

[0070] Reference Figure 4 In terms of orientation, when only a portion of the lifting rope 1 is wound in a certain winding groove 21, the projection on the counting component 4 above the winding wheel 2 may be shadowed, while the projection on the counting component 4 below may not be shadowed. At this time, the number of turns of the lifting rope 1 measured by the two counting components 4 will be different. Taking the minimum value of the two detection values ​​can more accurately determine whether the corresponding winding groove 21 is fully wound with a lifting rope 1, thereby improving the detection accuracy of the number of turns of the lifting rope 1.

[0071] Of course, in other embodiments, if the requirement for detection accuracy is not too high, the counting component 4 can be arranged only on one side outside the winding reel 2.

[0072] In this embodiment, the winding reel 2 can be a cylindrical structure with a constant diameter. In other embodiments, the winding reel 2 can also be a frustum-shaped structure with a gradually changing diameter.

[0073] Example 3

[0074] This embodiment provides a lifting device, which differs from Embodiments 1 and 2 in that:

[0075] Optionally, see Figure 6, the winding wheel 2 is hollow structure, the counting component 4 is located in the winding wheel 2, the light emitting component 3 is arranged outside the winding wheel 2 (the arrow direction in the figure is the light irradiation direction), and is located at one side of the winding wheel 2, and the winding wheel 2 is projected to the counting component 4 in the direction perpendicular to the axis of the winding wheel 2. Figure 6 That is, the light energy generated by the light emitting component 3 is projected on the counting component 4 inside the winding wheel 2 through the winding wheel 2 from the outside, the number of the winding grooves 21 in the projection which are not wound by the lifting rope 1 is detected by the photoelectric sensor of the counting component 4, and the winding number of the lifting rope 1 can be calculated by subtracting the number of the winding grooves 21 not wound by the lifting rope 1 from the total number of the winding grooves 21 on the winding wheel 2.

[0076] Further, the light emitting component 3 can be arranged on the opposite sides of the winding wheel 2, and correspondingly, the photoelectric sensor is arranged on the opposite sides of the counting component 4 to detect the number of the winding grooves 21 in the projection which are not wound by the lifting rope 1, and the winding number of the lifting rope 1 is calculated correspondingly, and the minimum value of the two values is taken as the winding number of the lifting rope 1 on the winding wheel 2, so that the detection accuracy of the winding number of the lifting rope 1 is improved.

[0077] In the embodiment, the winding wheel 2 is a cylindrical structure with equal diameter. In other embodiments, the winding wheel 2 can also be a conical structure with gradually changing diameter.

[0078] Embodiment four

[0079] The embodiment provides a lifting device, which is different from the lifting device in the embodiment one, the embodiment two and the embodiment three.

[0080] Optionally, referring to Figure 7 , the light emitting component 3 and the counting component 4 are arranged on the two sides of the winding wheel 2, and the winding wheel 2 is projected to the counting component 4 in the direction perpendicular to the axis of the winding wheel 2, Figure 7 The arrow direction in the figure is the light irradiation direction. The light energy generated by the light emitting component 3 is projected on the counting component 4 on the opposite side of the winding wheel 2 through the winding wheel 2, the number of the winding grooves 21 in the projection which are not wound by the lifting rope 1 is detected by the photoelectric sensor of the counting component 4, and the winding number of the lifting rope 1 can be calculated by subtracting the number of the winding grooves 21 not wound by the lifting rope 1 from the total number of the winding grooves 21 on the winding wheel 2.

[0081] Embodiment five

[0082] The embodiment provides a clothes airing machine, which comprises a host, a clothes airing rod and the lifting device as in any one of the above embodiments. The host is provided with a control module, the clothes airing rod is connected with the free end of the lifting rope 1, and the control module can control the rotating direction of the winding wheel 2 according to the winding number of the lifting rope 1 obtained by the counting component 4 after receiving the instruction of a user, so that the clothes airing rod is lifted by the lifting rope 1.

[0083] The host can be fixed on the roof of the balcony, and the clothes drying rod can include a clothes rod and a quilt rod for drying clothes, bed sheets, and the like. The lifting device further includes a rotating motor, and the winding wheel 2 and the rotating motor are arranged in the host, the output end of the rotating motor is in transmission connection with the winding wheel 2, and the winding wheel 2 is driven to wind up or release the lifting rope 1, so as to adjust the drying height.

[0084] The clothes drying machine adopting the lifting device detects the number of winding turns of the lifting rope 1 through the cooperation of the light-emitting component 3 and the counting component 4 to determine the current position of the clothes drying rod, so that the control module can timely control the clothes drying rod to stop lifting, the winding wheel 2 is prevented from continuing to rotate when the clothes drying rod is at the highest position or the lowest position, and the clothes drying machine failure is avoided. Moreover, multiple position switches do not need to be arranged, the control logic and the structural design of the clothes drying machine can be simplified, and the manufacturing cost of the clothes drying machine is reduced.

[0085] Embodiment six

[0086] As shown in Figure 8 the embodiment, a clothes drying machine control method is provided, which is applied to the clothes drying machine in embodiment five, and includes the following steps:

[0087] S1, obtaining an operation instruction of the clothes drying machine;

[0088] S2, obtaining the number of winding turns of the lifting rope 1 on the winding wheel 2 measured by the counting component 4;

[0089] S3, controlling the clothes drying rod to lift or stop lifting according to the operation instruction and the number of winding turns of the lifting rope 1 by the control module.

[0090] That is, after the user issues the operation instruction, the number of winding turns of the lifting rope 1 is obtained to determine the current position of the clothes drying rod, and then the control module controls the clothes drying rod to lift or stop lifting according to the operation instruction of the user and the current position of the clothes drying rod, so that the winding wheel 2 is prevented from continuing to rotate when the clothes drying rod is at the highest position or the lowest position, the clothes drying machine failure is avoided, and the service life of the clothes drying machine is prolonged.

[0091] In step S1, the operation instruction can include a lifting instruction and a lowering instruction, and the user can issue the operation instruction through a controller (such as a remote controller, a control button, an audio device, or the like) of the clothes drying machine. The controller is in communication connection with the control module of the clothes drying machine, the control module is a control computer board arranged in the host, and the clothes drying control program of the clothes drying machine is preset on the control computer board. For example, the remote controller is provided with a lifting button and a lowering button, and the lifting instruction and the lowering instruction can be issued correspondingly. If the controller is an audio device, voice control can be performed, and the lifting instruction and the lowering instruction can be issued correspondingly, such as “clothes drying rod lifting” and “clothes drying rod lowering”.

[0092] In step S2, the step of the counting unit 4 measuring the number of turns of the lifting rope 1 on the winding reel 2 includes:

[0093] The number R1 of the winding grooves 21 in the projection of the winding reel 2 is identified, wherein the winding grooves 21 that are not wound with the lifting rope 1 can be projected onto the counting unit 4.

[0094] The number of turns T of the lifting rope 1 on the winding wheel 2 is calculated, T = R0 - R1, where R0 is the total number of winding grooves 21 on the winding wheel 2, and R0 is an integer greater than or equal to 1.

[0095] Optionally, the counting component 4 includes a photoelectric sensor. The photoelectric sensor detects the brightness of the light in the projection and converts the light signal into a digital signal to detect the number R1 of unwound winding grooves 21 of the lifting rope 1. For example, when R0 is 20, and R1 is 14, the number of turns T of the lifting rope 1 is 6, at which point the clothesline can be in the hanging position; when R1 is 5, the number of turns T of the lifting rope 1 is 15, at which point the clothesline can be in the hanging position.

[0096] In this embodiment, assuming that the winding wheel 2 is provided with R0 winding grooves 21, the maximum number of turns of the lifting rope 1, Tmax = R0, corresponds to the upper limit of the clothes drying rod, and the minimum number of turns of the lifting rope 1, Tmin = 0, corresponds to the lower limit of the clothes drying rod.

[0097] like Figure 9 As shown, after the user issues an operation command, the control module first obtains the number of turns T of the lifting rope 1 measured by the counting component 4 to obtain the current height of the clothesline. If it is an upward command, it determines whether the number of turns T of the lifting rope 1 is equal to Tmax. If yes, it controls the winding wheel 2 to stop rotating; if no, it controls the clothesline to rise to the first preset height. If it is a downward command, it determines whether the number of turns T of the lifting rope 1 is equal to Tmin. If yes, it controls the winding wheel 2 to stop rotating; if no, it controls the clothesline to descend to the second preset height.

[0098] That is, when the number of turns T of the lifting rope 1 obtained by the control module reaches Tmax, it indicates that the clothes drying rod has risen to the highest position (the retracted position), and the clothes drying rod can no longer rise. At this time, the control reel 2 stops rotating to prevent the clothes drying machine from being overloaded and damaged. Similarly, when the number of turns T of the lifting rope 1 obtained by the control module reaches Tmin, it indicates that the clothes drying rod has descended to the lowest position. At this time, the control reel 2 stops rotating, and the clothes drying rod stops descending, which can avoid overloading the clothes drying machine and extend its service life.

[0099] Furthermore, the rising command may include a drying command. The clothesline has a drying position, and the drying position corresponds to the number of turns of the lifting rope 1, T = T3. When the drying command is received, the control module controls the winding wheel 2 to rotate, so that the lifting rope 1 drives the clothesline to rise. When T = T3, the control module controls the winding wheel 2 to stop rotating. At this time, the clothesline rises to the first preset height mentioned above.

[0100] Understandably, if the command to raise the clothesline is to raise it to the storage position, then the first preset height corresponds to the height of the clothesline after it is stored.

[0101] Furthermore, the descent command includes a clothes-hanging command. The clothesline has a clothes-hanging position, and the number of turns of the lifting rope 1 corresponding to the clothes-hanging position is T = T4. When the clothes-hanging command is received, the control module controls the winding wheel 2 to rotate, so that the lifting rope 1 drives the clothesline to descend. When T = T4, the control module controls the winding wheel 2 to stop rotating. At this time, the clothesline descends to the second preset height mentioned above.

[0102] In this embodiment, the length of the lifting rope 1 during winding and unwinding is proportional to the number of turns of the lifting rope 1 on the winding wheel 2, and corresponds to different height positions of the clothesline. This can be designed in the early testing stage. For example, R0 is 20, T3 can be 14, 16, 18, 19, etc., and T4 can be 4, 5, 6, 7, 8, etc. The specific values ​​of T3 and T4 can be set according to the user's usage habits.

[0103] Optionally, the clothes drying rack also includes a prompting module that communicates with the control module. When the number of turns of the lifting rope 1 is T = Tmax or T = Tmin, the control module controls the winding wheel 2 to stop rotating. At the same time, the control module controls the prompting module to issue a prompting signal to remind the user that the clothes drying rod can no longer rise or fall, so as to avoid overload damage to the rotating motor of the clothes drying rack.

[0104] For example, the prompting module can be a buzzer that can emit a prompting sound, or a voice module that can emit voice prompts, such as emitting voice prompts such as "reached the upper limit" or "reached the lower limit".

[0105] Example 7

[0106] like Figure 10 As shown, this embodiment provides a clothes drying rack control method, which differs from Embodiment Six in that:

[0107] Optionally, the winding reel 2 has a hollow shell structure, the light-emitting component 3 is disposed inside the winding reel 2, and counting components 4 are arranged on opposite sides of the winding reel 2, the two counting components 4 being counting component one and counting component two respectively.

[0108] In step S2, the step of the counting unit 4 measuring the number of turns of the lifting rope 1 on the winding reel 2 includes:

[0109] S21, obtaining the winding number T1 of the lifting rope 1 measured by the counting component one;

[0110] S22, obtaining the winding number T2 of the lifting rope 1 measured by the counting component two;

[0111] S23, determining the winding number T of the lifting rope 1 on the winding wheel 2, T = min[T1, T2].

[0112] Since the winding groove 21 may not be fully wound with the lifting rope 1, the winding numbers of the lifting rope 1 measured by the counting component one and the counting component two are not equal, at this time, taking the minimum value of the two can more accurately judge whether the winding groove 21 is fully wound with one circle of the lifting rope 1, thereby improving the detection accuracy of the winding number of the lifting rope 1.

[0113] The clothes drying machine control method can more accurately determine the current position of the clothes drying rod, and when the clothes drying rod reaches the highest position or the lowest position, the control module can timely control the winding wheel 2 to stop rotating, thereby ensuring that the clothes drying machine will not be overloaded and damaged.

[0114] Note that the above is only the preferred embodiment of the present application and the technical principle applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments herein, and those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. Elevator, characterized in that The utility model relates to a lifting device, comprising: a lifting rope (1); a winding wheel (2) made of light-transmitting material, a plurality of winding grooves (21) are arranged on the winding wheel (2), and the lifting rope (1) can be wound on the plurality of winding grooves (21); a light-emitting component (3) for emitting light to the winding wheel (2); a counting component (4), the winding wheel (2) can be projected on the counting component (4) under the action of the light emitted by the light-emitting component (3), and the counting component (4) can obtain the winding number of the lifting rope (1) on the winding wheel (2) according to the projection of the winding wheel (2).

2. The lift device of claim 1, wherein, The winding wheel (2) is a hollow shell structure, and the diameter of the winding wheel (2) gradually decreases from the first end to the second end, one of the light-emitting component (3) and the counting component (4) is arranged at the small-diameter end of the winding wheel (2), the other of the light-emitting component (3) and the counting component (4) is arranged at the large-diameter end of the winding wheel (2), and the winding wheel (2) is projected on the counting component (4) along the axial direction.

3. The lift device of claim 1, wherein, The winding wheel (2) is a hollow shell structure, the light-emitting component (3) is arranged in the winding wheel (2), at least one side of the winding wheel (2) is provided with the counting component (4), and the winding wheel (2) is projected on the counting component (4) in the direction perpendicular to the axis of the winding wheel (2); or, The winding wheel (2) is a hollow structure, the counting component (4) is located in the winding wheel (2), the light-emitting component (3) is arranged outside the winding wheel (2) and located on one side of the winding wheel (2), and the winding wheel (2) is projected on the counting component (4) in the direction perpendicular to the axis of the winding wheel (2).

4. The lift device of claim 1, wherein, The light-emitting component (3) and the counting component (4) are separately arranged on opposite sides of the winding wheel (2), and the winding wheel (2) is projected on the counting component (4) in the direction perpendicular to the axis of the winding wheel (2).

5. Lift according to any of claims 1-4, characterized in that The light-emitting component (3) comprises a light-emitting diode for emitting a light beam towards the winding wheel (2), and the counting component (4) comprises a photoelectric sensor for obtaining the winding number of the lifting rope (1) according to the number of winding grooves (21) on the projected winding wheel (2).

6. A clothes drying machine characterised in that, The utility model relates to a main machine, a clothesline and a lifting device as claimed in any one of claims 1-5, a control module is arranged in the main machine, the free end of the lifting rope (1) is connected with the clothesline, and the control module can control the rotating direction of the winding wheel (2) according to the winding number of the lifting rope (1) obtained by the counting component (4) after receiving the user instruction, so that the lifting rope (1) drives the clothesline to ascend and descend.

7. The clothes drying machine control method according to claim 6, wherein The utility model relates to a clothesline machine control method, comprising the following steps: obtaining the operation instruction of the clothesline machine; obtaining the winding number of the lifting rope (1) on the winding wheel (2) measured by the counting component (4); controlling the clothesline to ascend and descend according to the operation instruction and the winding number of the lifting rope (1) by the control module.

8. The clothes drying machine control method according to claim 7, characterized in that, The counting component (4) measures the number of turns of the lifting rope (1) on the winding wheel (2) includes: Identify the number of winding grooves (21) in the projection of the winding wheel (2) R1, wherein the winding groove (21) without winding the lifting rope (1) can be projected to the counting component (4); Calculate the number of turns T of the lifting rope (1) on the winding wheel (2), T = R0-R1, wherein R0 is the total number of winding grooves (21) on the winding wheel (2).

9. The clothes drying machine control method according to claim 8, characterized in that, The winding wheel (2) is a hollow shell structure, the light emitting component (3) is arranged in the winding wheel (2), and the counting component (4) is arranged on the opposite sides of the winding wheel (2), and the two counting components (4) are counting component one and counting component two respectively; The counting component (4) measures the number of turns of the lifting rope (1) on the winding wheel (2) includes: Obtain the number of turns T1 of the lifting rope (1) measured by the counting component one; Obtain the number of turns T2 of the lifting rope (1) measured by the counting component two; Determine the number of turns T of the lifting rope (1) on the winding wheel (2), T = min[T1, T2].

10. The clothes drying machine control method according to claim 7, characterized in that, The operation instruction includes the lifting instruction and the descending instruction, the winding wheel (2) is provided with R0 winding grooves (21), the maximum number of turns Tmax of the lifting rope (1) is R0, which corresponds to the upper limit position of the clothesline, and the minimum number of turns Tmin of the lifting rope (1) is 0, which corresponds to the lower limit position of the clothesline; If it is the lifting instruction, it is judged whether the number of turns T of the lifting rope (1) is equal to Tmax, if yes, the winding wheel (2) is controlled to stop rotating; if not, the clothesline is controlled to rise to a first preset height; If it is the descending instruction, it is judged whether the number of turns T of the lifting rope (1) is equal to Tmin, if yes, the winding wheel (2) is controlled to stop rotating; if not, the clothesline is controlled to descend to a second preset height.

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