A device for determining the removal of a transport bolt, a method and a washing machine formed thereby

Abstract

The application discloses a device and method for judging the dismounting of transport bolts and a washing machine formed by the device and method. The device comprises an electrical appliance body, a plurality of screw holes for mounting the transport bolts in the electrical appliance body, and detection switches arranged on the side walls of the screw holes. All the detection switches are connected in series or in parallel to form a detection circuit. When a first signal is output by the detection circuit, it is judged that all the transport bolts are dismounted. When a second signal is output by the detection circuit, it is judged that at least one transport bolt is not dismounted. The application can judge the dismounting condition of the transport bolts according to the signal output by the detection circuit, and the device is simple and the method is convenient, so that the accuracy and convenience of the judgment of the dismounting of the transport bolts are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of judging transportation bolts, in particular to a device and method for judging the disassembly of transportation bolts and a washing machine formed thereby. BACKGROUND

[0002] During the transportation process of the drum washing machine, transportation bolts are used to fix the drum and the cabinet to prevent collision therebetween, but if the transportation bolts are not disassembled when installed and used by the user, the washing machine will vibrate and generate noise during operation, affecting the user experience and causing after-sales complaints.

[0003] In the prior art, it is necessary to judge whether the transportation bolts are disassembled by human observation, and human judgment has certain errors, and it is necessary to observe each transportation bolt position one by one, which wastes time and has human errors.

[0004] The prior art can also detect the position change of the transportation bolts by setting displacement sensors on the accessories of the transportation bolts, but when the transportation bolts are not disassembled but the displacement changes, the detection value of the displacement sensor has certain errors, and the displacement sensor cannot form a unified circuit form, has low integration and large floor area. SUMMARY

[0005] The present application aims to at least solve one of the problems in the related art. To this end, the purpose of the present application is to provide a device and method for judging the disassembly of transportation bolts and a washing machine formed thereby, which can judge the disassembly of the transportation bolts according to the signal output by the detection circuit, the device is simple, the method is convenient, and the accuracy and convenience of the disassembly judgment of the transportation bolts are improved.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a device for judging the disassembly of transportation bolts, comprising an electric appliance body, a plurality of screw holes for mounting transportation bolts in the electric appliance body, a detection switch is arranged on the side wall of the screw hole, all the detection switches are connected in series or parallel to form a detection circuit, when the detection circuit outputs a first signal, it is judged that all the transportation bolts are disassembled, and when the detection circuit outputs a second signal, it is judged that at least one transportation bolt is not disassembled.

[0007] Further, the detection switch comprises a switch button, the switch button is located in the screw hole corresponding to the transportation bolt, when the transportation bolt is installed in the screw hole, the switch button is pressed, and when the transportation bolt is disassembled, the switch button is reset.

[0008] Further, the detection switch is a normally closed switch, all the detection switches form a series detection circuit, when the detection circuit has current conduction, it is judged that all the transportation bolts are disassembled, and when the detection circuit has no current passing through, it is judged that at least one transportation bolt is not disassembled.

[0009] Further, the detection switches are normally open switches, and all the detection switches form a parallel detection circuit. When the detection circuit has no current conduction, it is determined that all the transport bolts are removed. When the detection circuit has current conduction, it is determined that at least one transport bolt is not removed.

[0010] A method for determining removal of transport bolts, comprising: arranging detection switches on the side walls of the screw holes corresponding to the transport bolts, and all the detection switches form a detection circuit in series or in parallel. When the detection circuit outputs a first signal, it is determined that all the transport bolts are removed. When the detection circuit outputs a second signal, it is determined that at least one transport bolt is not removed.

[0011] A washing machine, comprising the device for determining removal of transport bolts as described above.

[0012] Further, the device further comprises a door lock power supply circuit, and the detection circuit is connected to the door lock power supply circuit. When the detection circuit outputs the first signal, the door lock power supply circuit is turned on to supply power to the door lock of the washing machine, so that the door lock is locked.

[0013] Further, the device further comprises a door lock detection module and an alarm module. When the detection switches are normally closed switches, all the detection switches form a detection circuit in series. The detection circuit and the door lock power supply circuit are connected in series. The door lock detection module is connected to the door lock power supply circuit and the alarm module.

[0014] When all the transport bolts are removed, the series circuit formed by the detection circuit and the door lock power supply circuit is turned on, and the door lock is locked. The door lock detection module is used to detect whether the door lock of the washing machine is closed in place. If not, the alarm module is triggered.

[0015] Further, the device further comprises an alarm module and a bolt detection module. When the detection switches are normally open switches, all the detection switches form a detection circuit in parallel. The output end of the detection circuit is connected to the bolt detection module. The output end of the bolt detection module is connected to the alarm module and the door lock power supply circuit.

[0016] If the detection circuit has current conduction, the bolt detection module triggers the alarm module. If the detection circuit has no current conduction, the bolt detection module controls the door lock power supply circuit to be turned on, so that the door lock is locked.

[0017] Further, the device further comprises a bolt alarm module, a bolt detection module and a door lock detection module. When the detection switches are normally open switches, all the detection switches form a detection circuit in parallel. The output end of the detection circuit is connected to the bolt detection module. The output end of the bolt detection module is connected to the alarm module and the door lock power supply circuit. The door lock detection module is connected to the bolt alarm module and the door lock power supply circuit.

[0018] If the detection circuit has current conduction, the bolt detection module triggers the bolt alarm module; if the detection circuit has no current conduction, the bolt detection module controls the door lock power supply circuit to conduct, so that the door lock is locked; the door lock detection module is used for detecting whether the door lock of the washing machine is closed in place, if not, triggering the door lock alarm module.

[0019] Compared with the prior art, the above technical solution provided by the embodiment of the application has the following advantages: in the application, the detection switch is arranged in the screw hole corresponding to the transport bolt, and is used for sensing whether the transport bolt exists in the screw hole; when the transport bolt exists in the screw hole or does not exist in the screw hole, the state of the detection switch is different; by using the different states of the detection switch and the detection circuit formed by the detection switch, whether the transport bolt in the electric appliance body is disassembled can be quickly and accurately judged; the application can judge the disassembly condition of the transport bolt according to the signal output by the detection circuit; the device is simple, the method is convenient, and the accuracy and convenience of the disassembly judgment of the transport bolt are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without any creative work.

[0022] In the drawings:

[0023] Figure 1 is a front view of the detection switch and the transport bolt in the application;

[0024] Figure 2 is a top view of the detection switch and the transport bolt in the application;

[0025] Figure 3 is a structural schematic view of one kind of detection switch;

[0026] Figure 4 is a control method flow chart in the embodiment 3 of the application;

[0027] Figure 5 is a control frame diagram in the embodiment 3 of the application;

[0028] Figure 6 is a control method flow chart in the embodiment 4 of the application;

[0029] Figure 7For the control framework in Embodiment 4 of the present application;

[0030] Reference numeral: 1, electric appliance body; 2, shell; 3, screw; 4, gasket; 5, bolt; 6, detection switch. DETAILED DESCRIPTION

[0031] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will now be described in detail with reference to the drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the technical solutions, and cannot be understood as indicating that the indicated mechanisms or elements must have a particular direction, therefore, it cannot be understood as a limitation on the present application.

[0032] It should also be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as "on" or "below" another element, the element can be "directly" or "indirectly" located above another element, or there can be one or more intervening elements. The terms "first", "second", "third" and the like are only for the convenience of describing the technical solutions, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, therefore, the features with "first", "second", "third" and the like can be explicitly or implicitly included one or more of the features. 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.

[0033] In the following description, specific details are presented, such as specific system structures, techniques, etc., in order to thoroughly understand the embodiments of the present application. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, mechanisms, circuits and methods are omitted to avoid unnecessary details that hinder the description of the present application.

[0034] Please refer to the drawings Figures 1-3The application provides a device for judging the dismounting of a transport screw, which comprises an electric appliance body 1, screw holes for mounting the transport screws in the electric appliance body 1, and detection switches 6 arranged on the side walls of the screw holes.

[0035] In the application, the detection switches 6 are arranged in the screw holes corresponding to the transport screws and are used for sensing whether the transport screws exist in the screw holes. When the transport screws exist in the screw holes or do not exist in the screw holes, the states of the detection switches 6 are different. The different states of the detection switches 6 and the detection circuit formed by the detection switches 6 can be used for quickly and accurately judging whether the transport screws in the electric appliance body 1 are dismounted. The application can judge the dismounting condition of the transport screws according to the signals output by the detection circuit, the device is simple, the method is convenient, and the accuracy and convenience of the judgment of the dismounting of the transport screws are improved.

[0036] Embodiment 1

[0037] The application provides a device for judging the dismounting of a transport screw, which comprises an electric appliance body 1, screw holes for mounting the transport screws in the electric appliance body 1, and detection switches 6 arranged on the side walls of the screw holes. All the detection switches 6 are connected in series or in parallel to form a detection circuit. When the detection circuit outputs a first signal, it is judged that all the transport screws are dismounted. When the detection circuit outputs a second signal, it is judged that at least one transport screw is not dismounted.

[0038] As shown in Figure 1 and Figure 2 , the specific structure of the transport screw can comprise a screw 3, a gasket 4 and a bolt 5. Corresponding screw holes are arranged in the electric appliance body 1 and are used for mounting the transport screws. The transport screws are mounted in the transportation process and are used for fixing the electric appliance in the transportation process. After the transportation, the transport screws are dismounted to avoid affecting the normal operation of the electric appliance.

[0039] The electric appliance comprises the electric appliance body 1 and a shell 2. The transport screws can be mounted in the electric appliance body 1 or the shell 2. The specific arrangement is determined according to the transportation requirement. When the transport screws are mounted, the gasket 4 is placed outside the screw hole, the bolt 5 is inserted into the inside of the screw hole, and the screw 3 is inserted into the inside of the screw hole to be fixed.

[0040] Each screw hole is provided with a hole cover. When the transport screws are dismounted, the hole cover is used for sealing the screw hole. The mounting of the hole cover does not change the conduction state of the detection switch 6. Each electric appliance is provided with a plurality of transport screws. The detection switches 6 are arranged near each transport screw. The mounting state of the transport screw determines the conduction state of the detection switch 6.

[0041] The detection switch 6 needs to be installed in the screw hole accessory, which can be a micro switch, including a switch button, which needs to be located inside the screw hole, so that when the screw hole is filled with a transport screw, the switch button is pressed, and when the transport screw in the screw hole is disassembled, the switch button is reset. When the switch button is pressed and reset, the conduction state inside the detection switch 6 changes.

[0042] Specifically, the detection switch 6 is a weak current, normally closed switch, and all detection switches 6 form a series detection circuit. When the switch button of any detection switch 6 is pressed by the transport screw, i.e. when any transport screw is not disassembled, the internal loop of the detection switch 6 will be disconnected, and the detection circuit will also be disconnected, i.e. no current will pass through the detection circuit. At this time, the signal output by the detection circuit is 0.

[0043] When the switch button of all detection switches 6 is not pressed by the transport screw, i.e. when all transport screws are disassembled, the internal loop of the detection switch 6 is conductive, the detection circuit is conductive, i.e. current is conducted in the detection circuit. At this time, the signal output by the detection circuit is 1.

[0044] In this application, the detection switch 6 is arranged in the screw hole corresponding to the transport screw, for sensing whether there is a transport screw in the screw hole. When there is a transport screw in the screw hole or there is no transport screw, the state of the detection switch 6 is different. By using the different states of the detection switch 6 and the detection circuit formed thereby, it can be quickly and accurately judged whether the transport screw in the electric appliance body 1 is disassembled. The application can judge the disassembly of the transport screw according to the signal output by the detection circuit, the device is simple, the method is convenient, and the accuracy and convenience of the disassembly judgment of the transport screw are improved.

[0045] It is worth noting that the detection switch 6 in this application can be a weak current, normally closed switch, or a strong current, normally closed switch, both of which are the same in structure and working principle.

[0046] Embodiment 2

[0047] The application provides a device for judging the disassembly of a transport screw, which includes an electric appliance body 1, a screw hole in the electric appliance body 1 for installing a transport screw, a detection switch 6 arranged on the side wall of the screw hole, and all detection switches 6 connected in series or parallel to form a detection circuit. When the detection circuit outputs a first signal, it is judged that all transport screws are disassembled, and when the detection circuit outputs a second signal, it is judged that at least one transport screw is not disassembled.

[0048] As Figure 1 and Figure 2As shown, the specific structure of the transport bolt can include a screw 3, a gasket 4 and a bolt 5, and a corresponding screw hole is arranged in the electrical appliance body 1 for mounting the transport bolt, the transport bolt is mounted during transportation, used for fixing the electrical appliance during transportation, and is removed after transportation to avoid affecting the normal operation of the electrical appliance.

[0049] The electrical appliance includes an electrical appliance body 1 and a shell 2, and the transport bolt can be mounted in the electrical appliance body 1 or the shell 2, and is arranged according to the transportation requirement, when the transport bolt is mounted, the gasket 4 is placed outside the screw hole, the bolt 5 is inserted into the inside of the screw hole, and the screw 3 is inserted into the inside of the screw hole for fixation.

[0050] Each screw hole is provided with a hole cover, and when the transport bolt is removed, the hole cover is used to seal the screw hole, and the installation of the hole cover will not change the conduction state of the detection switch 6. There are multiple transport bolts in each electrical appliance, and a detection switch 6 is arranged near each transport bolt, and the installation state of the transport bolt determines the conduction state of the detection switch 6.

[0051] The detection switch 6 needs to be mounted near the screw hole, which can be a micro switch and includes a switch button, and the switch button needs to be located inside the screw hole, so that when the screw hole is filled with the transport bolt, the switch button is pressed, and when the transport bolt in the screw hole is removed, the switch button is reset. When the switch button is pressed and reset, the conduction state inside the detection switch 6 changes.

[0052] Specifically, the detection switch 6 is a weak current and normally open switch, and all the detection switches 6 form a parallel detection circuit, when the switch button of any detection switch 6 is pressed by the transport bolt, that is, when any transport bolt is not removed, the internal loop of the detection switch 6 is conducted, and the detection circuit is also conducted, that is, there is current passing through the detection circuit, at this time, the signal output by the detection circuit is 1.

[0053] When the switch button of all the detection switches 6 is not pressed by the transport bolt, that is, when all the transport bolts are removed, the internal loop of the detection switch 6 is disconnected, and the detection circuit is disconnected, that is, there is no current passing through the detection circuit, at this time, the signal output by the detection circuit is 0.

[0054] In the present application, the detection switch 6 is arranged in the screw hole corresponding to the transport bolt, and is used to sense whether there is a transport bolt in the screw hole, when there is a transport bolt in the screw hole or there is no transport bolt, the state of the detection switch 6 is different, and by using the different states of the detection switch 6 and the detection circuit formed thereby, whether the transport bolt in the electrical appliance body 1 is removed can be quickly and accurately judged, and the present application can judge the removal of the transport bolt according to the signal output by the detection circuit, the device is simple, the method is convenient, and the accuracy and convenience of the judgment of the removal of the transport bolt are improved.

[0055] This application also provides a method for determining whether a transport bolt has been removed, using the apparatus of Example 1 or Example 2. The specific method includes: disposing a detection switch 6 on the sidewall of the screw hole corresponding to the transport bolt, wherein all detection switches 6 form a detection circuit. When the detection circuit outputs a first signal, it is determined that all transport bolts have been removed. When the detection circuit outputs a second signal, it is determined that at least one transport bolt has not been removed. For detailed methods, please refer to Examples 1 and 2 and will not be described in detail here.

[0056] Example 3

[0057] like Figure 4 and Figure 5 As shown, the present application provides a washing machine, which includes the device for determining the disassembly of the transport bolts in Example 1. In addition, it also includes a door lock power supply circuit, a door lock detection module and an alarm module. When the detection switch 6 is a normally closed switch, all the detection switches 6 form a detection circuit in series; the detection circuit and the door lock power supply circuit are connected in series.

[0058] The door lock detection module is connected to the door lock power supply circuit. When the detection circuit outputs a first signal, the door lock power supply circuit is turned on, powering the washing machine door lock, thereby locking the door lock. When the door lock power supply circuit is powered, the door lock detection module detects whether the washing machine door lock is fully closed. If not, the alarm module is triggered.

[0059] The washing machine itself has a door lock power supply circuit, which is used to power the washing machine door, so that it can be locked when powered on and the motor can be started. This application integrates the detection circuit and the door lock power supply circuit, eliminating the need for a separate detection circuit and its program. By detecting the door lock lock or door closing before the washing machine runs a wash cycle, an alarm can be triggered to alert the user if the transport bolts have not been removed.

[0060] In this embodiment, the detection circuit and the door lock power supply circuit are connected in series. The detection circuit, and therefore the door lock power supply circuit, will only be conductive when all the transport bolts are removed. When the alarm module in this embodiment sounds, it could be because the transport bolts have been removed or the door lock is not locked. Users need to monitor both the removal of the transport bolts and the locking of the door.

[0061] Specifically, the detection switch 6 is a low-voltage, normally closed switch. All the detection switches 6 form a detection circuit connected in series, and the detection circuit and the door lock power supply circuit are connected in series; the output end of the door lock power supply circuit is connected to the door lock detection module, and the output end of the door lock detection module is connected to the alarm module, and the door lock detection module is connected to the start button of the washing machine. When the start button is pressed, the door lock detection module starts to run.

[0062] When the user presses the start button, the washing machine is ready to start the washing program, at this time the washing machine will first carry out the door lock detection, to determine whether the door lock is locked before driving the washing machine to run;

[0063] As shown in Figure 4 When any one of the switch buttons of the detection switch 6 is pressed by the transport screw, that is, any one of the transport screws is not disassembled, the internal circuit of the detection switch 6 is disconnected, and the detection circuit is also disconnected, that is, no current passes through the detection circuit, at this time, the door lock power supply circuit connected in series with the detection circuit is also disconnected, and the door lock cannot be powered on. When the start button of the washing machine is pressed, the door lock detection module operates, and it is detected that the door lock of the washing machine is not locked, so the alarm module is triggered to alarm, at this time the user needs to detect whether all the disassembly screws 3 are disassembled, if all the disassembly screws are disassembled, the user needs to detect whether the door lock power supply circuit is abnormal.

[0064] If the switch buttons of all the detection switches 6 are not pressed by the transport screws, that is, all the transport screws are disassembled, the internal circuit of the detection switch 6 is connected, the detection circuit is connected, that is, current is connected in the detection circuit, at this time, the door lock power supply circuit connected in series with the detection circuit is also connected, and the door lock is powered on and locked. When the start button of the washing machine is pressed, the door lock detection module operates, and it is detected that the door lock of the washing machine is locked, so the washing machine operates normally.

[0065] Embodiment 4

[0066] As shown in Figure 6 and Figure 7 A washing machine provided by the application comprises the device for judging the disassembly of the transport screw in Embodiment 2, in addition to which it further comprises a door lock power supply circuit, a screw detection module and an alarm module, when the detection switches 6 are normally open switches, all the detection switches 6 form a parallel detection circuit; the output end of the detection circuit is connected to the screw detection module, and the output end of the screw detection module is simultaneously connected to the alarm module and the door lock power supply circuit.

[0067] When the screw detection module receives the first signal output by the detection circuit, the screw detection module controls the door lock power supply circuit to be connected, so that the door lock is locked. When the start button of the washing machine is pressed, the screw detection module detects whether all the transport screws are disassembled, if all the transport screws are disassembled, it is defaulted that the door lock is locked, and the washing program is started.

[0068] When the screw detection module receives the second signal output by the detection circuit, the screw detection module triggers the alarm module, and the user detects whether the transport screws are completely disassembled.

[0069] The detection circuit and the door lock power supply circuit are respectively arranged in the embodiment, and the detection circuit and the bolt detection module jointly constitute a detection device for judging whether the transport bolts are disassembled, and the door lock is locked after the transport bolts are completely disassembled. In the embodiment, the alarm module only reflects the disassembly state of the transport bolts, and is irrelevant to the state of the door lock.

[0070] Specifically, when the detection switch 6 is a normally open switch, all the detection switches 6 form a parallel detection circuit, the output end of the detection circuit is connected to the bolt detection module, and the output end of the bolt detection module is connected to the alarm module and the door lock power supply circuit. The bolt detection module is in communication with the start button of the washing machine, and when the start button is pressed, the bolt detection module starts to operate.

[0071] As shown in Figure 7 When the user presses the start button, the washing machine is ready to start the washing program, and at this time, the washing machine first performs bolt detection to determine whether the transport bolts are completely disassembled.

[0072] When the switch button of any detection switch 6 is pressed by the transport bolt, that is, when any transport bolt is not disassembled, the internal circuit of the detection switch 6 is turned on, the detection circuit is also turned on, that is, there is current passing through the detection circuit, at this time, the bolt detection module connected to the detection circuit receives the signal of the turned-on detection circuit, and triggers the alarm module; the user detects the transport bolts.

[0073] When the switch button of all the detection switches 6 is not pressed by the transport bolt, that is, when all the transport bolts are disassembled, the internal circuit of the detection switch 6 is disconnected, the detection circuit is disconnected, that is, there is no current passing through the detection circuit, at this time, the bolt detection module connected to the detection circuit receives the signal of the disconnected detection circuit, controls the door lock power supply circuit to be powered on, so that the door lock is locked; without triggering the alarm module, the washing machine operates normally.

[0074] Embodiment 5

[0075] The washing machine provided in the application is different from the washing machine in embodiment 4 in that a door lock detection module and a corresponding alarm module are added, that is, the washing machine comprises a detection circuit, a door lock power supply circuit, a bolt detection module, a door lock detection module, a bolt alarm module and a door lock alarm module. When the detection switch 6 is a normally open switch, all the detection switches 6 form a parallel detection circuit; the output end of the detection circuit is connected to the bolt detection module, the output end of the bolt detection module is connected to the bolt alarm module and the door lock power supply circuit, and the door lock power supply circuit is connected to the door lock detection module. The output end of the door lock detection module is connected to the door lock alarm module.

[0076] When the bolt detection module receives the first signal output by the detection circuit, the bolt detection module controls the door lock power supply circuit to be turned on, so that the door lock is locked. When the start button of the washing machine is pressed, the bolt detection module detects whether all the transport bolts are disassembled. If all the transport bolts are disassembled, the door lock power supply circuit is powered on, the door lock is locked, and then the door lock detection module detects whether the door lock is locked. If the door lock is locked, the washing program is started.

[0077] When the bolt detection module receives the second signal output by the detection circuit, the bolt detection module triggers the bolt alarm module, and the user detects whether the transport bolt is completely disassembled.

[0078] In the embodiment, the detection circuit and the door lock power supply circuit are respectively arranged, and the detection circuit and the bolt detection module jointly constitute a detection device for judging whether the transport bolt is disassembled. After judging that the transport bolt is completely disassembled, the door lock power supply is locked and detected. In the embodiment, the bolt alarm module reflects the disassembly state of the transport bolt, and is irrelevant to the state of the door lock. The door lock alarm module reflects the locking state of the door lock, and is irrelevant to the transport bolt.

[0079] Specifically, when the detection switch 6 is a normally open switch, all the detection switches 6 form a parallel detection circuit, the output end of the detection circuit is connected to the bolt detection module, the bolt detection module is connected to the bolt alarm module and the door lock power supply circuit at the same time, and the output end of the door lock power supply circuit is connected to the door lock detection module. The bolt detection module is in communication with the start button of the washing machine, and when the start button is pressed, the bolt detection module starts to operate.

[0080] When the user presses the start button, the washing machine is ready to start the washing program. At this time, the washing machine first performs bolt detection to determine whether all the transport bolts are disassembled.

[0081] When the switch button of any detection switch 6 is pressed by the transport bolt, that is, when any transport bolt is not disassembled, the internal circuit of the detection switch 6 is turned on, the detection circuit is also turned on, that is, there is current passing through the detection circuit. At this time, the bolt detection module connected to the detection circuit receives the signal of the turned-on detection circuit, and triggers the bolt alarm module. The user detects the transport bolt.

[0082] If the switch button of all the detection switches 6 is not pressed by the transport bolt, that is, if all the transport bolts are disassembled, the internal circuit of the detection switch 6 is disconnected, the detection circuit is disconnected, that is, there is no current passing through the detection circuit. At this time, the bolt detection module connected to the detection circuit receives the signal of the disconnected detection circuit, controls the door lock power supply circuit to be powered on, so that the door lock is powered on and locked. Then, the door lock detection module detects the door lock. If the door lock is locked, the washing machine operates normally. If the door lock is not locked, the door lock alarm module is triggered, and the user detects the door lock.

[0083] It can be understood that the above embodiments only express the preferred embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and several modifications and improvements can be made, which belong to the protection scope of the present application; therefore, any equivalent transformation and modification within the scope of the claims of the present application shall belong to the scope of the claims of the present application.

Claims

1. A laundry machine characterized by, The device for judging the removal of the transport screw comprises a device for judging the removal of the transport screw, a door lock power supply circuit, a screw alarm module, a screw detection module, a door lock detection module and a door lock alarm module, The device for judging the removal of the transport screw comprises an electrical appliance body, a plurality of screw holes for mounting the transport screws in the electrical appliance body, and detection switches arranged on the side walls of the screw holes. All the detection switches are connected in series or in parallel to form a detection circuit. When the detection circuit outputs a first signal, it is judged that all the transport screws are removed. When the detection circuit outputs a second signal, it is judged that at least one transport screw is not removed. The detection circuit is connected to the door lock power supply circuit. When the detection circuit outputs the first signal, the door lock power supply circuit is turned on to supply power to the door lock of the washing machine so that the door lock is locked. When the detection switches are normally open switches, all the detection switches form a parallel detection circuit. The output end of the detection circuit is connected to the screw detection module. The output end of the screw detection module is connected to the screw alarm module and the door lock power supply circuit. The door lock detection module is connected to the door lock alarm module and the door lock power supply circuit. If there is current conduction in the detection circuit, the screw detection module triggers the screw alarm module. If there is no current conduction in the detection circuit, the screw detection module controls the door lock power supply circuit to be turned on so that the door lock is locked. The door lock detection module is used to detect whether the door lock of the washing machine is closed in place. If not, the door lock alarm module is triggered.

2. A laundry machine according to claim 1, characterized in that, The detection switch comprises a switch button. When the transport screw is installed in the corresponding screw hole, the switch button is pressed down. When the transport screw is removed, the switch button is reset.

3. A laundry machine according to claim 1, characterized in that, When there is no current conduction in the detection circuit, it is judged that all the transport screws are removed. When there is current conduction in the detection circuit, it is judged that at least one transport screw is not removed.

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