CN216378800U - Safety switch for washing machine - Google Patents
Safety switch for washing machine Download PDFInfo
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- CN216378800U CN216378800U CN202123001649.XU CN202123001649U CN216378800U CN 216378800 U CN216378800 U CN 216378800U CN 202123001649 U CN202123001649 U CN 202123001649U CN 216378800 U CN216378800 U CN 216378800U
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- washing machine
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- safety switch
- reflecting mirror
- signal receiver
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Abstract
The utility model relates to a safety switch for a washing machine, which comprises a workbench arranged in a washing machine shell and positioned above an internal system of the washing machine, wherein the workbench is provided with a signal emitter and a signal receiver, and a barrel cover of an outer barrel of the washing machine is provided with a reflector for reflecting signals. The safety switch for the washing machine has the advantages of simple structure, easiness in installation, difficulty in damage and lower cost.
Description
Technical Field
The utility model relates to a security device of a washing machine, in particular to a security switch for the washing machine.
Background
The washing machine is a household appliance widely applied to daily life of people, wherein the pulsator washing machine becomes a popular choice for people due to the advantages of simple structure, convenient maintenance, high cleaning rate and the like. The traditional pulsator washing machine comprises a shell and a washing machine internal system in the shell, wherein the washing machine internal system comprises an outer barrel, a barrel cover is arranged at the top of the outer barrel cover, a disc pulsator is arranged at the barrel bottom of the outer barrel, a convex rib is arranged on the disc pulsator, and the disc pulsator can drive an inner barrel in the outer barrel to rotate. Under the drive of the impeller, water flow in the inner barrel forms vortex which rotates clockwise and anticlockwise to drive the fabric to rotate and roll, so that dirt on clothes can be removed. When the pulsator washing machine is used for washing or dewatering, clothes in an inner barrel of the pulsator washing machine are easy to be eccentric, and when the eccentricity is large, an internal system of the washing machine can shake to a certain degree. If the shaking amplitude is too large, the washing machine can generate certain potential safety hazard. For this reason, a safety switch is generally disposed inside the conventional pulsator washing machine, and when the shaking amplitude of the internal system is too large, the safety switch can close the pulsator, so as to prevent safety accidents. However, the conventional safety switch is a mechanical structure type safety switch, and when the clothes in the washing machine are eccentric greatly, the internal system stops dewatering and enters balance washing by impacting the safety switch. The safety switch with the mechanical structure is triggered by impact, so that the safety switch is easy to damage and even fails in severe cases, and needs a large installation space and is relatively high in cost.
In view of the above-mentioned drawbacks, the present designer is actively making research and innovation to create a new safety switch for a washing machine, so that the safety switch has more industrial application value.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problems, an object of the present invention is to provide a safety switch for a washing machine, which has a simple structure, is easy to install, is not easy to be damaged, and has a low cost.
The utility model relates to a safety switch for a washing machine, which comprises a workbench arranged in a washing machine shell and positioned above an internal system of the washing machine, wherein the workbench is provided with a signal emitter and a signal receiver, and a barrel cover of an outer barrel of the washing machine is provided with a reflector for reflecting signals.
Further, the safety switch for the washing machine, provided by the utility model, is characterized in that the signal transmitter is an infrared signal transmitter, and the signal receiver is an infrared signal receiver.
Furthermore, the safety switch for the washing machine of the utility model is characterized in that the signal emitter and the signal receiver are arranged on the bottom surface of the workbench.
Furthermore, the safety switch for the washing machine is characterized in that the reflector is mounted on the top edge of the outer barrel cover of the washing machine, under normal conditions, the reflector is located outside the reflection area of the signal emitter, signals sent by the signal emitter cannot irradiate the reflector, when the internal system of the washing machine shakes to exceed a preset amplitude, the reflector enters the reflection area, and the signals sent by the signal emitter can irradiate the reflector and are reflected to the signal receiver by the reflector.
Furthermore, the safety switch for the washing machine is characterized in that the reflector is mounted on the top edge of the outer barrel cover of the washing machine, under normal conditions, the reflector is located in the reflection area of the signal emitter, signals sent by the signal emitter can irradiate on the reflector and are reflected to the signal receiver by the reflector, when an internal system of the washing machine shakes to exceed a preset amplitude, the reflector exceeds the reflection area, and signals sent by the signal emitter cannot irradiate on the reflector at the moment.
By the scheme, the utility model at least has the following advantages: the safety switch for the washing machine realizes the functions of transmitting and receiving signals by arranging the signal transmitter and the signal receiver on the workbench, and realizes the monitoring of the shaking of the internal system of the washing machine by arranging the signal transmitter, the signal receiver and the reflecting mirror on the outer barrel cover of the washing machine, thereby preventing the washing machine from being damaged due to overlarge shaking amplitude of the internal system of the washing machine. Compared with the existing mechanical safety switch, all parts of the mechanical safety switch are not in contact during working, so that the mechanical safety switch is not damaged and fails due to severe impact, long in service life, simple in structure and low in cost.
In conclusion, the safety switch for the washing machine has the advantages of simple structure, easiness in installation, difficulty in damage and lower cost.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a safety switch for a washing machine of the present invention;
in the figure, the washing machine internal system 1, a workbench 2, a signal emitter 3, a signal receiver 4 and a reflector 5.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
The first embodiment is as follows:
referring to fig. 1, the safety switch for a washing machine of the present embodiment includes a working platform 2 disposed in a casing of the washing machine and located above an internal system 1 of the washing machine, the working platform is provided with a signal emitter 3 and a signal receiver 4, and a drum cover of an outer drum of the washing machine is provided with a reflector 5 for reflecting signals.
The safety switch for the washing machine realizes the functions of transmitting and receiving signals by arranging the signal transmitter and the signal receiver on the workbench, and realizes the monitoring of the shaking of the internal system of the washing machine by arranging the signal transmitter, the signal receiver and the reflecting mirror on the outer barrel cover of the washing machine, thereby preventing the washing machine from being damaged due to overlarge shaking amplitude of the internal system of the washing machine. Compared with the existing mechanical safety switch, all parts of the mechanical safety switch are not in contact during working, so that the mechanical safety switch is not damaged and fails due to severe impact, long in service life, simple in structure and low in cost.
The signal emitted by the signal emitter is reflected by the reflector on the outer barrel cover and transmitted to the signal receiver, the sensor in the signal receiver generates corresponding electric signal jump after receiving the signal, and transmits the electric signal of the jump to the controller in the washing machine, and the controller generates corresponding action after receiving the electric signal.
When the washing machine works, the reflecting mirror arranged on the outer barrel cover is driven by the impeller to shake to a certain extent along with the internal system of the washing machine. When the shaking amplitude reaches a certain degree, the reflector enters or exits the signal reflection area, and the signal receiver generates corresponding electric signal jump.
In this embodiment, when the washing machine normally works, the reflecting mirror is located outside the reflecting area, and the signal sent by the signal transmitter cannot be transmitted to the signal receiver through the reflecting mirror. When the shaking amplitude of the internal system reaches a preset degree, the reflecting mirror enters the reflecting area, and the signal sent by the signal transmitter can irradiate the reflecting mirror and enter the signal receiver through the reflection of the transmitting mirror. The signal receiver generates corresponding electric signal jump, so that the controller controls the motor to stop or make the motor work in a low-speed state, and the phenomenon that the washing machine is damaged due to overlarge shaking of an internal system is prevented.
The signals transmitted and received by the signal transmitter and the signal receiver may be optical signals such as infrared signals and laser signals, and in this embodiment, infrared signals are preferred. Meanwhile, the signal transmitter and the signal receiver can be integrated into a whole, so that the installation of an operator is facilitated. The workbench can be arranged on the cover of the washing machine, and the reflector can be arranged at the top edge of the outer barrel cover. The signal emitter and the signal receiver are arranged on the bottom surface of the workbench.
Example two:
the safety switch for washing machine of this embodiment is unanimous basically with the safety switch for washing machine of embodiment one structure, only the speculum and signal transmitter, certain difference is put to signal receiver's relative mounted position, it is specific, the speculum is installed in the top edge of washing machine outer barrel bung, under normal condition, the speculum is located signal transmitter's reflection zone, the signal that signal transmitter sent can shine on the speculum and by speculum reflection to signal receiver, when washing machine internal system rocks and exceeds predetermined range, the speculum surpasss the reflection zone, the signal that signal transmitter sent can't shine on the speculum this moment.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description.
In addition, the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention. Also, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A safety switch for a washing machine, characterized in that: the washing machine comprises a workbench (2) arranged in a washing machine shell and positioned above an internal system (1) of the washing machine, wherein the workbench is provided with a signal emitter (3) and a signal receiver (4), and a barrel cover of an outer barrel of the washing machine is provided with a reflector (5) for reflecting signals.
2. A safety switch for a washing machine according to claim 1, wherein: the signal transmitter is an infrared signal transmitter, and the signal receiver is an infrared signal receiver.
3. A safety switch for a washing machine according to claim 1, wherein: the signal transmitter and the signal receiver are arranged on the bottom surface of the workbench.
4. A safety switch for a washing machine according to claim 1, wherein: the reflecting mirror is arranged at the top edge of a barrel cover of an outer barrel of the washing machine, under normal conditions, the reflecting mirror is positioned outside a reflecting area of the signal emitter, a signal sent by the signal emitter cannot irradiate on the reflecting mirror, when an internal system of the washing machine shakes to exceed a preset amplitude, the reflecting mirror enters the reflecting area, and the signal sent by the signal emitter can irradiate on the reflecting mirror and is reflected to the signal receiver by the reflecting mirror.
5. A safety switch for a washing machine according to claim 1, wherein: the reflecting mirror is arranged at the top edge of a barrel cover of an outer barrel of the washing machine, under the normal condition, the reflecting mirror is positioned in a reflecting area of the signal emitter, a signal sent by the signal emitter can be irradiated on the reflecting mirror and reflected to the signal receiver by the reflecting mirror, when an internal system of the washing machine shakes to exceed a preset amplitude, the reflecting mirror exceeds the reflecting area, and the signal sent by the signal emitter cannot be irradiated on the reflecting mirror at the moment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123001649.XU CN216378800U (en) | 2021-12-01 | 2021-12-01 | Safety switch for washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123001649.XU CN216378800U (en) | 2021-12-01 | 2021-12-01 | Safety switch for washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216378800U true CN216378800U (en) | 2022-04-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123001649.XU Active CN216378800U (en) | 2021-12-01 | 2021-12-01 | Safety switch for washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216378800U (en) |
-
2021
- 2021-12-01 CN CN202123001649.XU patent/CN216378800U/en active Active
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