Clothes drying machine protection system and clothes drying machine

Abstract

The invention discloses a clothes drying machine protection system and a clothes drying machine, which comprises a weighing module, a power module and a control module. The weighing module is connected with the control module, which is connected with the power module. The control module sends a corresponding signal to the power module by judging that the weighing module detects weight information. The weighing module comprises a pulley assembly and a gravity sensor. The pulley assembly is used for allowing a steel wire rope to pass through and turn the steel wire rope, and is moved by a certain amplitude in the direction of a resultant force F of the steel wire rope under the action of the steel wire rope. The gravity sensor is installed on the moving path of the pulley assembly. The pulley assembly acts on the gravity sensor in a direction perpendicular to the resultant force F, so that the direction of the pressure on the gravity sensor is consistent with the direction of the resultant force F of the steel wire rope on the pulley assembly. The detection interference factors of the entire weighing module are reduced, and the measurement error is reduced to improve the measurement accuracy, so that the situation can be judged in time and protection can be achieved when the clothes drying machine is overweight or encounters resistance when descending.

Description

Technical Field

[0001] The present invention relates to the field of a clothes drying machine control system, and in particular to a clothes drying machine protection system, specifically a clothes drying machine overweight protection system and a clothes drying machine descending resistance protection system. Background Art

[0002] The clothes drying machine comprises a main unit component mounted on the ceiling and a clothes drying rod under the main unit component. The main unit component has a built-in rope winding device, which is connected to the clothes drying rod through a steel wire rope to realize lifting and lowering of the clothes drying rod.

[0003] In order to protect the clothes drying machine from running reliably, an overweight protection module and a descending resistance module are provided on the clothes drying machine. For example, an overweight protection device for a clothes drying machine in CN203159959U is realized by components such as a pulley, a compression spring and a micro switch. When overweight, the pulley moves to trigger the micro switch and then the motor sends a corresponding signal. Another clothes drying machine descending resistance protection device in CN203159961U is also realized by a pulley, a compression spring and a micro switch.

[0004] Affected by factors such as the load capacity and deformation of the compression spring, the weight change on the clothes drying rack is difficult to accurately reflect, resulting in the failure to provide timely protection when it is overloaded or encounters resistance when descending. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a clothes drying machine protection system, which determines whether the clothes drying component is overweight and encounters resistance to descent based on the weight of the clothes drying items on the clothes drying component by the clothes drying machine weighing module, and then sends a corresponding signal to the driving module; further, a clothes drying machine with the above protection system is provided.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: a clothes drying machine protection system, including a weighing module, a power module and a control module, the weighing module is connected to the control module, the control module is connected to the power module, and the control module sends a corresponding signal to the power module by judging the weight information detected by the weighing module;

[0007] The weighing module includes a pulley assembly and a gravity sensor. The pulley assembly is used for allowing the steel wire rope to pass through and turn the steel wire rope, and is moved by a certain amplitude in the direction of the steel wire rope combined force F under the action of the steel wire rope; the gravity sensor is installed on the moving path of the pulley assembly;

[0008] The pulley assembly acts on the gravity sensor in a direction perpendicular to the resultant force F, so that the direction of the pressure on the gravity sensor is consistent with the direction of the resultant force F of the wire rope on the pulley assembly.

[0009] A further optimized solution of the present invention is: the power module includes a motor for driving the cable reel.

[0010] A further optimization scheme of the present invention is: when the weighing module detects that the load exceeds the preset maximum weight, the control module sends a signal to the power module to stop running.

[0011] A further optimization scheme of the present invention is: when the weighing module detects that the load is less than the weight of the clothes drying component, the control module sends a signal to the power module to stop the operation.

[0012] A further optimization scheme of the present invention is that the pulley assembly converts the steel wire rope led out of the driving module from horizontal extension to vertical extension, and the lower end of the vertically extending steel wire rope is connected to the clothes drying component.

[0013] A further optimized solution of the present invention is that the pulley assembly is fixed on a metal end plate of the clothes drying machine.

[0014] A further optimized solution of the present invention is: the control module is composed of a single chip microcomputer and peripheral circuits.

[0015] A further optimized solution of the present invention is: it also includes a fixing frame for installing the gravity sensor and the pulley assembly, and the pulley assembly can move within the fixing frame to a certain extent.

[0016] A further optimization scheme of the present invention is: the fixed frame includes a U-shaped groove formed by a bottom plate and two side plates, the gravity sensor and the pulley assembly are located in the U-shaped groove of the fixed frame, and the side plates are provided with an inclined groove for the wheel axle to pass through and the wheel axle can move in the inclined groove, and the extension direction of the inclined groove is the same as the direction of the resultant force F of the pulley subjected to the wire rope.

[0017] A further optimized solution of the present invention is: a clothes drying machine, characterized by comprising the clothes drying machine protection system.

[0018] Compared with the prior art, the advantage of the present invention is that the operation and shutdown of the motor are controlled by the gravity sensor, the pulley assembly and the control module to realize the protection of the clothes drying machine from overweight and descent resistance. The pulley assembly is moved to a certain extent in the direction of the resultant force F of the wire rope under the force of the wire rope, and acts on the gravity sensor in the direction of F perpendicular to the resultant force. The direction of the pressure on the gravity sensor is consistent with the direction of the resultant force F of the wire rope on the pulley assembly, avoiding the generation of friction component force in the same direction as the pressure F1 on the gravity sensor, so that the pressure on the gravity sensor is basically the same as the resultant force F, so that the detection interference factors of the entire weighing module are reduced, the measurement error is reduced to improve the measurement accuracy, so that the situation can be judged in time and protection can be achieved when the clothes drying machine is overweight or descent is resisted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0020] Figure 1 A schematic diagram of a clothes drying machine according to a preferred embodiment of the present invention Figure 1 ;

[0021] Figure 2 A schematic diagram of a clothes drying machine according to a preferred embodiment of the present invention Figure 2 ;

[0022] Figure 3 A preferred embodiment of the present invention Figure 2 Partial magnification Figure 1 ;

[0023] Figure 4 A preferred embodiment of the present invention Figure 2 Partial magnification Figure 2 ;

[0024] Figure 5 An exploded view of a weighing module according to a preferred embodiment of the present invention;

[0025] Figure 6 The assembly of a weighing module according to a preferred embodiment of the present invention Figure 1 ;

[0026] Figure 7 The assembly of a weighing module according to a preferred embodiment of the present invention Figure 2 ;

[0027] Figure 8 A preferred embodiment of the present invention Figure 7 Cross-sectional view (arrows indicate the direction of force);

[0028] Fig. 9 A schematic diagram of a fixing frame and a gravity sensor according to a preferred embodiment of the present invention;

[0029] Fig.10 A preferred embodiment of the present invention Fig. 9 Exploded diagram of

[0030] Fig.11 A schematic diagram of a wheel carrier according to a preferred embodiment of the present invention;

[0031] Fig.12 A schematic diagram of the module organization structure of a preferred embodiment of the present invention;

[0032] Fig.13 This is a flow chart of the air-drying / baking process of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that these descriptions are only illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0034] It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0035] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0036] like Figure 1-3 As shown in FIG. 12 , a clothes drying rack includes a main unit 100 fixedly mounted on the ceiling of an indoor balcony and a clothes drying unit 300 below the main unit 100 . The main unit 100 has a power module 101 and a drive module 102 , and the drive module 102 is a wire reel controlled by a motor in the power module 101 .

[0037] The driving module 102 is wound with a steel wire rope 200 for pulling the clothes drying component 300 . The driving module 102 is operated by a motor to retract and release the steel wire rope 200 , thereby realizing the lifting function of the clothes drying component 300 .

[0038] A control module 103 is also provided in the host component 100 . The control module 103 is connected to the power module 101 to control the operation of the motor in the power module 101 and further control the drive module 102 .

[0039] like Figure 4-8 As shown in FIG. 12 , a weighing module 104 is provided in the host component 100, and the weighing module 104 can detect the load of the steel wire rope 200 in real time. The weighing module 104 communicates with the control module 103, and the control module 103 sends a corresponding signal to the power module 101 by judging that the weighing module 104 detects the weight information, so that the power module 101 performs the corresponding operation.

[0040] The control module 103 can receive the weight information of the weighing module 104 , compare it with the preset information, and convert it into instruction information for controlling the power module 101 .

[0041] When the weighing module 104 detects that the load exceeds the preset maximum weight, the control module 103 sends a signal to stop the operation to the power module 101, thereby protecting the clothes drying machine from overweight.

[0042] At the same time, when the weighing module 104 detects that the load is less than the weight of the clothes drying part 300, the control module 103 sends a stop signal to the power module 101, thereby realizing the descent resistance protection of the clothes drying machine.

[0043] like Figure 5 As shown, the weighing module 104 includes a fixed frame 01, a pulley assembly 02, and a gravity sensor 03. The fixed frame 01 is used to install the gravity sensor 03 and the pulley assembly 02. The pulley assembly 02 is used to allow the steel wire rope 200 to pass through and to turn the steel wire rope 200. The pulley assembly 02 is subjected to the resultant force F of the loaded steel wire rope 200, thereby driving the pulley assembly 02 to move a certain amplitude in the fixed frame 01 along the direction of the resultant force F. The gravity sensor 03 is installed on the fixed frame 01 adjacent to the pulley assembly 02 in a direction perpendicular to the resultant force F, and is located on the side of the pulley assembly 02 away from the steel wire rope 200.

[0044] That is to say, the loaded wire rope 200 drives the pulley assembly 02 to move in the direction close to the weighing sensor; the pulley assembly 02 is subjected to the resultant force F of the wire rope 200, which acts on the gravity sensor 03 in a direction perpendicular to the resultant force F, thereby causing stress deformation of the gravity sensor 03. According to the principle of force transmission, the direction of the pressure F1 on the gravity sensor 03 is consistent with the direction of the resultant force F of the wire rope 200 on the pulley assembly 02, and the pressure F1 on the gravity sensor 03 is the resultant force F of the wire rope 200.

[0045] The gravity sensor 03 transmits the detected value to the control module 103, and the control module 103 calculates the value through the built-in computing unit to obtain the load of the wire rope 200 and further obtain the weight of the drying object. Preferably, the control module 103 is composed of a single-chip microcomputer and peripheral circuits. The single-chip microcomputer is preset with a calculation program to process the data transmitted by the gravity sensor 03 and compare it with the preset information stored therein, and outputs the instruction information for controlling the power module 101 when the value is too large or too small.

[0046] like Figure 5-10As shown, the fixing frame 01 is fixed on the metal end plates 1 at both ends of the clothes drying machine, and includes a U-shaped groove 013 formed by a bottom plate 011 and two side plates 012. The gravity sensor 03 and the pulley assembly 02 are located in the U-shaped groove 013 of the fixing frame 01, and the axis of the U-shaped groove 013 is at a 45-degree angle to the horizontal direction.

[0047] The pulley assembly 02 includes a pulley 021, a wheel frame 022 and a wheel axle 023. Preferably, a protrusion 022a matching the force-bearing area 031 of the gravity sensor 03 is provided at the bottom of the wheel frame 022.

[0048] The pulley 021 is connected to the wheel frame 022 through the wheel axle 023. The steel wire rope 200 drawn from the driving module 102 extends horizontally around the pulley 021 and turns to extend vertically after passing through the pulley 021. The lower end of the vertically extending steel wire rope 200 is connected to the clothes drying component 300. In other words, the resultant force F of the steel wire rope 200 on the pulley assembly 02 is at a 45-degree angle to the horizontal direction. This angle setting makes the lifting and lowering of the steel wire rope 200 smoother and also facilitates the assembly of the various components of the weighing module.

[0049] The gravity sensor 03 is fixed on the bottom plate 011 of the fixing frame 01, opposite to the bottom of the wheel frame 022. Preferably, a through area matching the gravity sensor 03 is provided on the bottom plate 011, and the gravity sensor 03 and the bottom plate 011 are snap-connected.

[0050] Furthermore, inclined grooves 014 are symmetrically provided on the two side plates 012 for the axle 023 to pass through and move in the inclined grooves 014. The extending direction of the inclined grooves 014 is the same as the direction of the resultant force F of the wire rope 200 on the pulley 021. In this embodiment, the direction of the inclined grooves 014 is at a 45-degree angle to the horizontal direction.

[0051] When the pulley assembly 02 is acted upon by the wire rope 200, it moves along the inclined groove 014 in the U-shaped groove 013 of the fixed frame 01, and the protrusion 022a of the wheel frame 022 acts on the force-bearing area 031 of the gravity sensor 03. Similarly, when the wire rope 200 is loosened when encountering resistance during descent, the pulley assembly 02 moves away from the gravity sensor 03, and the deformation of the gravity sensor 03 is reduced.

[0052] Because the extension direction of the inclined groove 014 and the extension direction of the U-shaped groove 013 are in the same direction as the direction of the resultant force F of the wire rope 200 on the pulley 021, the pulley assembly 02 will not collide or rub with the inclined groove 014 or the fixed frame 01 during the movement along the inclined groove 014, thereby avoiding the generation of a friction component in the same direction as the pressure F1 on the gravity sensor 03, so that the pressure F1 on the gravity sensor 03 is basically the same as the resultant force F, so that the detection interference factors of the entire weighing module 104 are reduced, the measurement error is reduced, and the accuracy is improved, so that it can be judged in time when the clothes drying machine is overweight or encounters resistance when descending, and the operation of the reel motor can be stopped.

[0053] like Fig.12 As shown, by setting the weighing module 104 on the clothes drying rack, the clothes drying rack can also be provided with a drying control system based on the weight change of the clothes being dried. The clothes drying rack also includes a drying module 105, and the control module 103 is connected to the drying module 105. The control module 103 sends a corresponding signal to the drying module 105 by judging that the weighing module 104 detects the weight information.

[0054] Preferably, the drying module 105 includes a fan, and may also be provided with a heating module. The drying module 105 may be built into the host component 100, or may be a bottom-mounted structure.

[0055] The drying module 105 adjusts the corresponding power level according to the weight of the clothes to be dried detected by the weighing module 104 .

[0056] like Fig.13 As shown, specifically, during the use of the clothes drying rack, the weighing module 104 detects the load weight of the steel wire rope 200 in real time and transmits it to the control module 103 for corresponding processing. When the control module 103 issues an air-drying / drying instruction, the control module 103 collects the first weight information in the corresponding operation area and stores it in the corresponding memory. When the drying module 105 performs air-drying / drying, at a preset time point, the control module 103 collects the weight information at the corresponding time point and compares and processes it.

[0057] More specifically, at the first preset time point, the control module 103 first retrieves the first load weight information, calculates the first load weight information and the load weight information at this time point, and compares the calculated value with the first level setting value. When the reduction rate of the two is greater than the first level setting value, the air-drying operation is ended, otherwise the second level judgment is performed.

[0058] The secondary judgment is provided with a secondary setting value corresponding to the power level of the drying module 105. By comparing the calculated value with the secondary setting value, the control module 103 sends different power level start instructions to the drying module 105 and continues the drying operation.

[0059] At the next time point, the control module 103 retrieves the load weight information of the previous time point, and compares the load weight information between the two adjacent time points, compares again according to the above-mentioned judgment procedure, and outputs the corresponding control instructions.

[0060] In this way, when the drying module 105 performs air drying / drying, the weighing module 104 detects the load weight in real time, the control module 103 calculates the weight change of the load, and determines whether it is necessary to adjust the corresponding power level according to the weight change of the load in each time period, thereby improving the drying quality and efficiency of the clothes drying machine and improving its intelligence level.

[0061] The above is a detailed introduction to the clothes drying machine protection system and clothes drying machine provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. Clothes drying machine protection system, characterized by It includes a weighing module, a power module and a control module, wherein the weighing module is connected to the control module, the control module is connected to the power module, and the control module sends a corresponding signal to the power module by judging the weight information detected by the weighing module; The weighing module includes a pulley assembly and a gravity sensor. The pulley assembly is used for the wire rope to pass through and The wire rope turns and moves a certain amount in the direction of the wire rope force F under the force of the wire rope; the gravity sensor is installed on the moving path of the pulley assembly; The pulley assembly acts perpendicularly on the gravity sensor in the direction of the resultant force F, so that the direction of the pressure on the gravity sensor is consistent with the direction of the resultant force F of the wire rope on the pulley assembly; It also includes a fixing frame for mounting a gravity sensor and a pulley assembly, wherein the pulley assembly can move within the fixing frame within a certain range; The fixing frame includes a U-shaped groove formed by a bottom plate and two side plates, the gravity sensor and the pulley assembly are located in the U-shaped groove of the fixing frame, the side plates are provided with an inclined groove for the wheel axle to pass through and the wheel axle can move in the inclined groove, and the extending direction of the inclined groove is the same as the direction of the resultant force F of the pulley subjected to the wire rope; When the drying module performs air drying / drying, the weighing module detects the load weight in real time, the control module calculates the weight change of the load, and determines whether it is necessary to adjust the corresponding power level according to the weight change of the load in each time period.

2. The clothes drying machine protection system according to claim 1, characterized in that The power module includes a motor for driving the cable reel.

3. The clothes drying machine protection system according to claim 1, characterized in that When the weighing module detects that the load exceeds the preset maximum weight, the control module sends a signal to the power module to stop running.

4. The clothes drying machine protection system according to claim 1, characterized in that When the weighing module detects that the load is less than the weight of the clothes drying part, the control module sends a signal to the power module to stop operation.

5. The clothes drying machine protection system according to claim 1, characterized in that The pulley assembly converts the steel wire rope led out of the driving module from horizontal extension to vertical extension, and the lower end of the vertically extending steel wire rope is connected to the clothes drying component.

6. The clothes drying machine protection system according to claim 1, characterized in that The pulley assembly is fixed to the metal end plate of the clothes drying rack.

7. The clothes drying machine protection system according to claim 1, characterized in that The control module is composed of a single chip microcomputer and peripheral circuits.

8. Clothes drying machine, characterized in that It comprises a clothes drying machine protection system as described in any one of claims 1-7.

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