Clothes airing machine resistance meeting control method and clothes airing machine

By real-time detection of the difference between the resistance switch and current of the clothes dryer and controlling the action of the dryer, the safety hazards of the clothes dryer in the existing technology are solved, and a more accurate resistance determination and safe lifting process are achieved.

CN119265880AInactive Publication Date: 2025-01-07HEFEI HAIER WASHING MACHINE +1
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Patent Information

Application Number
CN202310827941.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-07-06
Publication Date
2025-01-07
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing clothes dryer only relies on the obstacle-hitting switch, which can cause safety hazards during use, especially when the drying rod is hanging heavier, the obstacle-hitting switch may not be triggered effectively, causing the drying rod to continue to lift and lower, which may cause damage to the obstacles. .

Method used

By real-time detection of the difference between the two resistance switch states in the clothes dryer and the working current of the lifting motor, we can determine whether the drying rod is affected by resistance, and control the movement of the drying rod according to the difference, including stop action and jog mode to ensure that Safely get rid of obstacles.

Benefits of technology

More comprehensively and accurately determine whether the drying rod encounters obstacles during the lifting process, ensure the safety of the drying rod, avoid dangers caused by continued action, and improve the safety of the use of the drying machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a clothes airing machine resistance encountering control method and a clothes airing machine, and belongs to the technical field of clothes airing machines, the clothes airing machine resistance encountering control method comprises the following steps: S1, detecting whether two resistance encountering switches in a main machine of the clothes airing machine are both in a closed state in real time, and if yes, executing the step S2; if not, it is judged that the airing rod meets resistance, and the step S3 is executed; s2, detecting the working current of a lifting motor in the main machine of the clothes airing machine in real time, obtaining a difference value between the working current and a standard working current, judging whether an airing rod of the clothes airing machine is blocked or not according to the difference value, and after judging that the airing rod is blocked, controlling the airing rod of the clothes airing machine to act according to a preset method according to the difference value; s3, an airing rod of the clothes airing machine is controlled to stop acting, and then the airing rod is controlled to act in an inching mode. Whether the airing rod of the clothes airing machine is blocked or not in the lifting process can be judged more comprehensively and accurately, and the safety of the airing rod in the lifting process is guaranteed.
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Description

Technical Field

[0001] The present invention relates to the technical field of clothes drying machines, and in particular to a clothes drying machine resistance control method and a clothes drying machine. Background Art

[0002] A clothes drying machine generally includes a main unit and a drying rod that can be raised and lowered on the main unit. When in use, the main unit is fixed on the indoor ceiling, and the user controls the raising and lowering of the drying rod through a remote control to hang and dry the clothes to be dried. During the actual raising and lowering process of the drying rod, both ends of the drying rod may be stuck by objects around the clothes drying machine. If the drying rod continues to rise and fall after encountering obstacles, it may cause damage to the drying rod or objects around the clothes drying machine. Therefore, if Figure 1 As shown, the clothes drying machine is generally provided with an obstruction switch 10. During the normal lifting process of the clothes drying machine, the two obstruction switches 10 are both in a closed state; when the clothes drying machine encounters an obstruction, the obstruction switch 10 is in a non-closed state, so that the clothes drying rod of the clothes drying machine stops lifting.

[0003] The triggering of the resistance switch 10 is generally when an obstacle blocks the pole from descending, causing the wire rope of the resistance switch 10 to loosen. The spring contact 103 of the resistance switch 10 will rebound and leave the micro switch 104, causing the resistance switch 10 to be triggered to a non-closed state, at which time the pole will stop descending.

[0004] However, if the clothes hung on the clothes drying rod are heavy, the clothes drying rod will exert greater pressure on the obstacles. During the raising and lowering process of the clothes drying rod, even if it encounters resistance, it will be difficult for the wire rope to reach a relaxed state, and the resistance switch will not be triggered. This leads to certain safety hazards in the use of the clothes drying machine. Summary of the invention

[0005] The object of the present invention is to provide a clothes drying machine resistance control method and clothes drying machine, so as to solve the technical problem existing in the prior art that only resistance switches are used, resulting in certain safety hazards in the use of the clothes drying machine.

[0006] As conceived above, the technical solution adopted by the present invention is:

[0007] The method for controlling the resistance of a clothes drying machine comprises the following steps:

[0008] S1, real-time detection of whether the two resistance switches in the main unit of the clothes drying machine are both in a closed state, if yes, executing step S2; if no, determining that the clothes drying rod is obstructed, executing step S3;

[0009] S2, detecting the working current of the lifting motor in the main body of the clothes drying machine in real time, obtaining the difference between the working current and the standard working current, judging whether the clothes drying rod of the clothes drying machine encounters an obstruction according to the difference, and after judging that the clothes drying rod encounters an obstruction, controlling the clothes drying rod of the clothes drying machine to move according to a preset method according to the difference;

[0010] S3, controlling the clothes drying rod of the clothes drying machine to stop moving, and then controlling the clothes drying rod to move in an inching mode.

[0011] As a preferred solution of the method for controlling the resistance of the clothes drying machine, the difference is a value obtained by subtracting the standard working current from the working current. In step S2, judging whether the clothes drying machine's clothes drying rod encounters resistance according to the difference includes the following steps:

[0012] Determine whether the difference is zero; if the difference is zero, determine that the drying rod has not encountered any obstruction and the drying rod continues to move; otherwise, determine that the lifting and lowering of the drying rod is abnormal.

[0013] As a preferred solution of the method for controlling the clothes drying machine obstruction, the preset method includes a first setting method and a second setting method, and after determining that the clothes drying rod is abnormally lifted, controlling the clothes drying rod of the clothes drying machine to actuate according to the preset method according to the difference also includes:

[0014] S21, determining whether the difference is a negative value; if yes, controlling the drying rod to move according to the first setting method; if no, executing step S22;

[0015] S22, controlling the drying rod to operate according to the second setting method.

[0016] As a preferred solution of the method for controlling the clothes drying machine obstruction, the first setting method includes:

[0017] Determine whether the working current is less than a first set value Imin; if so, control the drying rod to stop moving; if not, continue to determine whether the working current is less than the first set value Imin.

[0018] As a preferred solution of the method for controlling the clothes drying machine obstruction, the second setting method includes:

[0019] Determine whether the working current is greater than the second set value Imax; if so, control the drying rod to stop moving and control the drying rod to move in the inching mode; if not, continue to determine whether the working current is greater than the second set value Imax.

[0020] As a preferred solution of the method for controlling the clothes drying machine resistance, in the second setting method, controlling the operation of the clothes drying rod in the inching mode includes:

[0021] The drying rod is controlled to move in the inching mode for a set time t, and after the set time t is over, the drying rod is controlled to move in the normal mode.

[0022] As a preferred solution of the clothes drying machine resistance control method, if it is detected that the absolute value of the difference is less than the set difference, the difference is determined to be zero; otherwise, the difference is determined to be non-zero.

[0023] As a preferred solution of the method for controlling the resistance of the clothes drying machine, the inching mode includes:

[0024] The drying rod is controlled to actuate at a set frequency, and each time it is actuated, the height change value of the drying rod is a set value.

[0025] As a preferred solution of the method for controlling the resistance of a clothes drying machine, the set value is 1cm-5cm.

[0026] A clothes drying machine, wherein the clothes drying machine adopts the above-mentioned clothes drying machine resistance control method to control the lifting and lowering of the clothes drying rod of the clothes drying machine.

[0027] Beneficial effects of the present invention:

[0028] The clothes drying machine obstruction control method proposed by the present invention can more comprehensively and accurately determine whether the clothes drying rod of the clothes drying machine encounters an obstruction during the lifting process. When it is determined that the clothes drying rod encounters an obstruction, the clothes drying rod is controlled to perform a set action to ensure the safety of the clothes drying rod during the lifting process.

[0029] The clothes drying machine obstruction control method detects in real time whether the two obstruction switches in the clothes drying machine main unit are both in a closed state. If at least one of the two obstruction switches is in a non-closed state, it means that the clothes drying rod is obstructed. At this time, the clothes drying rod of the clothes drying machine is controlled to stop moving to avoid the danger caused by the continued movement of the clothes drying rod; then, the clothes drying rod is controlled to move in a jog mode so that the clothes drying rod and the obstacle are separated. If both obstruction switches are in a closed state, at this time, the clothes drying rod may be in a normal actuation state or in an obstruction state; at this time, the working current of the lifting motor in the clothes drying machine main unit is detected in real time to obtain the difference between the working current and the standard working current, and the difference is used to determine whether the clothes drying rod of the clothes drying machine is obstructed. After determining that the clothes drying rod is obstructed, the clothes drying rod of the clothes drying machine is controlled to move according to a preset method according to the difference.

[0030] The clothes drying machine proposed by the present invention adopts the above-mentioned clothes drying machine resistance control method to control the lifting of the clothes drying rod, which can more comprehensively and accurately determine whether the clothes drying rod of the clothes drying machine encounters resistance during the lifting process. When it is determined that the clothes drying rod encounters resistance, the clothes drying rod is controlled to perform a set action to ensure the safety of the clothes drying rod during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1It is a schematic diagram of the setting of the resistance switch in the clothes drying machine in the prior art;

[0032] Figure 2 is a flow chart of a clothes drying machine resistance control method provided in Embodiment 1 of the present invention;

[0033] Figure 3 is a flow chart of a clothes drying machine obstruction control method provided in Embodiment 2 of the present invention;

[0034] Figure 4 is a flow chart of a first setting method provided in Embodiment 2 of the present invention;

[0035] Figure 5 It is a flow chart of the second setting method provided in the second embodiment of the present invention.

[0036] In the figure:

[0037] 10. Resistance switch; 101. Wire rope; 102. Steering pulley; 103. Spring contact; 104. Micro switch. DETAILED DESCRIPTION

[0038] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0039] Embodiment 1

[0040] See also Figure 1 In the prior art, two resistance switches 10 are generally provided in the clothes drying machine, and the two resistance switches 10 are arranged one on the left and one on the right.

[0041] Specifically, the resistance switch 10 includes a steel wire rope 101 , a diverting pulley 102 , a spring contact 103 and a micro switch 104 .

[0042] When the clothes drying rod of the clothes drying machine is in the normal descending process, the gravity of the clothes drying rod will be transmitted to the spring contact 103 through the wire rope 101 and the steering pulley 102. Under the downward pressure of the wire rope 101, the spring contact 103 presses the micro switch 104, and the micro switch 104 is triggered and is in working state, so that the clothes drying rod can descend normally.

[0043] When the pole encounters resistance when descending, the wire rope 101 will be in a relaxed state due to the release of gravity. At this time, the spring contact 103 will leave the micro switch 104, the micro switch 104 will be in a non-working state, and the pole will stop descending.

[0044] However, when there are many clothes hanging on the clothes drying rod and the gravity is large, the clothes drying rod encounters resistance and it is difficult for the wire rope 101 to reach a relaxed state, resulting in certain safety hazards during the use of the clothes drying machine.

[0045] See also Figure 2 This embodiment provides a method for controlling resistance of a clothes drying machine, which can ensure that the clothes drying rod can be raised and lowered safely.

[0046] Specifically, in this embodiment, the clothes drying machine obstruction control method includes the following steps:

[0047] S1. Real-time detection of whether the two resistance switches 10 in the clothes drying machine main unit are both in a closed state. If yes, step S2 is executed; if not, it is determined that the clothes drying rod is obstructed, and step S3 is executed.

[0048] It can be understood that in step S1, if the two resistance switches 10 are in a closed state, it means that the clothes drying rod of the clothes drying machine may be in a normal lifting state or in a resistance state. At this time, it is necessary to further judge the working state of the clothes drying rod; at this time, execute step S2 to further judge the working state of the clothes drying rod.

[0049] If the two resistance switches 10 are not both in the closed state, it means that the clothes drying rod is now resisted, and step S3 is executed.

[0050] S2. Real-time detection of the working current of the lifting motor in the main unit of the clothes drying machine, obtaining the difference between the working current and the standard working current, judging whether the clothes drying rod of the clothes drying machine encounters an obstruction according to the difference, and after judging that the clothes drying rod encounters an obstruction, controlling the clothes drying rod of the clothes drying machine to move according to a preset method according to the difference.

[0051] Specifically, the difference is a value obtained by subtracting the standard working current from the working current.

[0052] Specifically, in step S2, the working state of the clothes drying rod is further determined by real-time monitoring of the working current of the lifting motor in the clothes drying machine main unit. Whether the clothes drying rod encounters an obstruction is determined based on the difference between the working current and the standard working current. If it is determined that the clothes drying rod encounters an obstruction, the clothes drying rod of the clothes drying machine is controlled to move according to a preset method based on the difference.

[0053] S3, controlling the clothes drying rod of the clothes drying machine to stop moving, and then controlling the clothes drying rod to move in a jog mode.

[0054] Specifically, before step S3, it has been determined that the clothes-drying rod has encountered an obstacle; then step S3 is executed to first control the clothes-drying rod to stop moving, so as to prevent the clothes-drying rod from continuing to rise and fall and damaging the clothes-drying rod or other items in the room or even causing danger; then the clothes-drying rod is controlled to move in a jog mode, so that the clothes-drying rod is gradually separated from the obstacle.

[0055] Preferably, in step S3, after the clothes drying rod of the clothes drying machine is controlled to stop moving, the host of the clothes drying machine sends out an alarm to remind the user that the clothes drying rod is blocked.

[0056] The clothes drying machine obstruction control method provided in this embodiment can more comprehensively and accurately determine whether the clothes drying rod of the clothes drying machine encounters an obstruction during the lifting process. When it is determined that the clothes drying rod encounters an obstruction, the clothes drying rod is controlled to perform a set action to ensure the safety of the clothes drying rod during the lifting process.

[0057] The clothes drying machine resistance control method detects in real time whether two resistance switches 10 in the clothes drying machine host are both in a closed state.

[0058] If at least one of the two resistance switches 10 is in a non-closed state, it means that the clothes drying rod is blocked. At this time, the clothes drying rod of the clothes drying machine is controlled to stop moving to prevent the clothes drying rod from continuing to move and causing danger; then, the clothes drying rod is controlled to move in a jog mode so that the clothes drying rod and the obstacle are separated. If both resistance switches 10 are in a closed state, at this time, the clothes drying rod may be in a normal actuation state or in a blocked state; at this time, the working current of the lifting motor in the clothes drying machine main unit is detected in real time to obtain the difference between the working current and the standard working current, and the difference is used to determine whether the clothes drying rod of the clothes drying machine is blocked. After determining that the clothes drying rod is blocked, the clothes drying rod of the clothes drying machine is controlled to move according to a preset method according to the difference.

[0059] Embodiment 2

[0060] See also Figure 3 This embodiment provides a method for controlling the clothes drying machine's resistance, which further limits the method for controlling the clothes drying machine's resistance based on the first embodiment.

[0061] Specifically, in this embodiment, in step S2, the difference is a value obtained by subtracting the standard working current from the working current. Judging whether the clothes drying rod of the clothes drying machine encounters an obstruction according to the difference includes the following steps:

[0062] Determine whether the difference is zero; if the difference is zero, it is determined that the drying rod has not encountered any obstruction; otherwise, it is determined that the drying rod has encountered any obstruction.

[0063] Specifically, in this embodiment, if the absolute value of the detected difference is less than the set difference, the difference is determined to be zero and the working current has not changed; otherwise, the difference is determined to be not zero, the working current has changed, and the drying rod is abnormally lifted or lowered.

[0064] Set the difference to a positive value.

[0065] During the normal operation of the clothes dryer, the working current of the lifting motor in the main unit of the clothes dryer will fluctuate within a reasonable range, that is, the actual working current may be slightly greater than the standard working current, or slightly less than the standard working current. Compare the absolute value of the difference with the set difference. If the absolute value of the difference is less than the set difference, it means that the working current of the lifting motor fluctuates within a reasonable range, and the difference is judged to be zero. At this time, the clothes drying rod is in a normal lifting state. This setting allows the working current to fluctuate within the normal range; it avoids misjudging that the clothes drying rod is blocked when the working current fluctuates within the normal range.

[0066] If the absolute value of the difference is not less than the set difference, it means that the working current of the lifting motor is abnormal and the lifting of the clothes drying rod is also in an abnormal state.

[0067] It can be understood that in step S2, the difference between the working current of the lifting motor in the clothes drying machine main unit and the standard working current is zero, indicating that the clothes drying rod is in a normal working state at this time. At this time, it is determined that the clothes drying rod has not encountered any obstruction, and the clothes drying rod can continue to be controlled to rise and fall normally.

[0068] If the difference between the working current of the lifting motor in the clothes drying machine host and the standard working current is not zero, it means that the lifting motor in the clothes drying machine host is working abnormally. Then, the clothes drying rod of the clothes drying machine is controlled to move according to a preset method according to the difference.

[0069] More specifically, in this embodiment, the preset method includes a first setting method and a second setting method. After determining that the lifting of the clothes drying rod is abnormal, controlling the clothes drying rod of the clothes drying machine to move according to the preset method according to the difference includes:

[0070] S21, determine whether the difference is a negative value; if yes, control the drying rod to operate according to the first setting method; if no, execute step S22.

[0071] S22, controlling the drying rod to move according to the second setting method.

[0072] It can be understood that if the difference between the working current of the lifting motor in the main unit of the clothes drying machine and the standard working current is a negative value, that is, the value obtained by subtracting the standard working current from the working current of the lifting motor is a negative value, it means that the working current of the lifting motor is less than the standard working current. At this time, the lifting and lowering of the clothes drying rod is abnormal, and the clothes drying rod is controlled to operate according to the first setting method.

[0073] If the difference between the working current of the lifting motor in the main unit of the clothes drying machine and the standard working current is positive, that is, the value obtained by subtracting the standard working current from the working current of the lifting motor is positive, it means that the working current of the lifting motor is greater than the standard working current, and the clothes drying rod encounters resistance. At this time, the clothes drying rod is controlled to actuate according to the second setting method.

[0074] Specifically, see Figure 4In this embodiment, the first setting method includes:

[0075] Determine whether the working current is less than the first set value Imin; if so, control the drying rod to stop moving; if not, continue to determine whether the working current is less than the first set value Imin.

[0076] The setting of the first setting value Imin provides a buffer for judging whether an abnormality occurs in the lifting of the clothes-drying pole. During the lifting and lowering of the clothes-drying pole, in addition to the working current fluctuating within a reasonable range, the user's household power voltage also fluctuates within a reasonable range. The first setting method avoids misjudgment caused by fluctuations in the user's household power voltage within a reasonable range.

[0077] In the first setting method, if the working current is less than the first setting value Imin, the control rod is stopped, that is, it is determined that the lifting and lowering of the rod is abnormal. At this time, the control rod is stopped, and the main unit of the clothes drying machine issues a low voltage protection warning, reminding the user that the household power voltage is low at this time, resulting in abnormal working current of the lifting motor, and reminding the user to deal with it.

[0078] In the first setting method, if the working current is not less than the first setting value Imin, it is determined that the household power voltage fluctuates within a reasonable range, resulting in an instantaneous decrease in the working current, and the working current is further determined to be less than the first setting value Imin. The setting of this step realizes continuous monitoring of the working current. Only when the difference is a negative value and the working current is less than the first setting value Imin, is it determined that the lifting and lowering of the clothes drying rod is abnormal, avoiding misjudgment.

[0079] Specifically, see Figure 5 In this embodiment, the second setting method includes:

[0080] Determine whether the working current is greater than the second set value Imax; if so, control the drying rod to stop moving and control the drying rod to move in a jog mode; if not, continue to determine whether the working current is greater than the second set value Imax.

[0081] The second setting value Imax is set to provide a buffer zone for judging whether the clothes-drying pole encounters an obstacle. When the clothes-drying pole is being raised or lowered, in addition to the working current fluctuating within a reasonable range, the user's household electricity voltage will also fluctuate within a reasonable range. The second setting method avoids misjudgment caused by fluctuations in the user's household electricity voltage within a reasonable range.

[0082] In the second setting method, if the working current is greater than the second setting value Imax, the drying rod is controlled to stop moving, that is, at this time, it is determined that the lifting and lowering of the drying rod is abnormal and the drying rod encounters resistance. At this time, the drying rod is controlled to stop moving to prevent the drying rod from further moving and causing damage to the drying rod itself, the drying rod damaging other items, or causing safety hazards.

[0083] In the second setting method, if the working current is not greater than the second setting value Imax, it is determined that the working current increases instantaneously due to fluctuations in the household power voltage within a reasonable range, and it is further determined whether the working current is greater than the second setting value Imax. The setting of this step can prevent misjudgment. That is, only when the difference is positive and the working current is greater than the second setting value Imax, it is determined that the lifting and lowering of the drying rod is abnormal.

[0084] Specifically, in this embodiment, in the second setting method, controlling the drying rod to move in the inching mode includes:

[0085] The drying rod is controlled in the inching mode and the operation is continued for the set time t. After the set time t is over, the drying rod is controlled in the normal mode.

[0086] It can be understood that after controlling the operation of the clothes drying rod for a set time t in the inching mode, it is determined that the clothes drying rod has completely left the obstacle, and the user is required to remove the obstacle within this time; thereafter, the user can control the operation of the clothes drying rod in the normal mode to ensure the normal use of the clothes drying machine.

[0087] In this embodiment, in the second setting method, the drying rod is controlled to move in a jog mode so that the drying rod is separated from the obstacle.

[0088] Specifically, in this embodiment, the inching mode includes: controlling the clothes-drying rod to actuate at a set frequency, and each time the clothes-drying rod is actuated, the height change value of the clothes-drying rod is a set value.

[0089] Optionally, in this embodiment, the set value is 1cm-5cm.

[0090] More specifically, the execution of the inching mode is performed by the user controlling the remote control. In the inching mode, the user presses the remote control at a set frequency, and each time the remote control is pressed, the remote control controls the lifting motor to actuate once, and the lifting motor actuates once to control the lifting and lowering of the drying rod to a set value.

[0091] Specifically, in the inching mode, the user can control the pole to descend or ascend. When the pole encounters an obstacle during the descent, the pole is controlled to ascend in the inching mode; when the pole encounters an obstacle during the ascending process, the pole is controlled to descend in the inching mode. This arrangement enables the pole to slowly and safely escape from obstacles, avoiding property losses to the user and safety accidents.

[0092] For example, if the clothes-drying rod encounters an obstacle during the descent process due to interference with other objects near the clothes-drying rod, the user presses the remote control at a set frequency, and each time the remote control is pressed, the remote control controls the lifting motor to actuate once, and the lifting motor actuates once to control the clothes-drying rod to rise to a set value. Then, the user removes the obstacle.

[0093] For example, if the clothes-drying rod encounters an obstacle during its ascent due to interference with other objects near the clothes-drying rod, the user presses the remote control at a set frequency, and each time the remote control is pressed, the remote control controls the lifting motor to actuate once, and the lifting motor actuates once to control the clothes-drying rod to descend by a set value. Then, the user removes the obstacle.

[0094] Specifically, in the normal mode, the remote controller is pressed once, and the clothes drying rod is raised to a certain position or lowered to a certain position.

[0095] Embodiment 3

[0096] This embodiment provides a clothes drying machine, which uses the clothes drying machine resistance control method of the first or second embodiment to control the lifting and lowering of a clothes drying rod of the clothes drying machine.

[0097] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for controlling the resistance of a clothes drying machine, characterized in that: The following steps are involved: S1, real-time detection of whether the two resistance switches in the main unit of the clothes drying machine are both in a closed state, if yes, executing step S2; if no, determining that the clothes drying rod is obstructed, executing step S3; S2, detecting the working current of the lifting motor in the main body of the clothes drying machine in real time, obtaining the difference between the working current and the standard working current, judging whether the clothes drying rod of the clothes drying machine encounters an obstruction according to the difference, and after judging that the clothes drying rod encounters an obstruction, controlling the clothes drying rod of the clothes drying machine to move according to a preset method according to the difference; S3, controlling the clothes drying rod of the clothes drying machine to stop moving, and then controlling the clothes drying rod to move in an inching mode.

2. The method for controlling the clothes drying machine obstruction according to claim 1, characterized in that: The difference is a value obtained by subtracting the standard working current from the working current. In step S2, judging whether the clothes drying rod of the clothes drying machine encounters an obstruction according to the difference includes the following steps: Determine whether the difference is zero; if the difference is zero, determine that the drying rod has not encountered any obstruction and the drying rod continues to move; otherwise, determine that the lifting and lowering of the drying rod is abnormal.

3. The method for controlling the airing machine obstruction according to claim 2, characterized in that: The preset method includes a first setting method and a second setting method. After determining that the drying rod is abnormally lifted, controlling the drying rod of the clothes drying machine to actuate according to the preset method according to the difference also includes: S21, determining whether the difference is a negative value; if yes, controlling the drying rod to move according to the first setting method; if no, executing step S22; S22, controlling the drying rod to operate according to the second setting method.

4. The method for controlling the clothes drying machine obstruction according to claim 3, characterized in that: The first setting method includes: Determine whether the working current is less than a first set value Imin; if so, control the drying rod to stop moving; if not, continue to determine whether the working current is less than the first set value Imin.

5. The method for controlling the clothes drying machine obstruction according to claim 3, characterized in that: The second setting method includes: Determine whether the working current is greater than the second set value Imax; if so, control the drying rod to stop moving and control the drying rod to move in the inching mode; if not, continue to determine whether the working current is greater than the second set value Imax.

6. The method for controlling the obstruction of a clothes drying machine according to claim 5, characterized in that: In the second setting method, controlling the operation of the drying rod in the inching mode includes: The drying rod is controlled to move in the inching mode for a set time t, and after the set time t is over, the drying rod is controlled to move in the normal mode.

7. The method for controlling the obstruction of a clothes drying machine according to claim 2, characterized in that: If it is detected that the absolute value of the difference is smaller than the set difference, the difference is determined to be zero; otherwise, the difference is determined to be non-zero.

8. The method for controlling the obstruction of a clothes drying machine according to any one of claims 1 to 7, characterized in that: The inching mode includes: The drying rod is controlled to actuate at a set frequency, and each time it is actuated, the height change value of the drying rod is a set value.

9. The method for controlling the clothes drying machine obstruction according to claim 8, characterized in that: The set value is 1cm-5cm.

10. A clothes drying machine, characterized in that: The clothes drying machine uses the clothes drying machine resistance control method as described in any one of claims 1 to 9 to control the lifting and lowering of the clothes drying rod of the clothes drying machine.