CN210293386U - Liquid level detection device - Google Patents
Liquid level detection device Download PDFInfo
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- CN210293386U CN210293386U CN201920865244.4U CN201920865244U CN210293386U CN 210293386 U CN210293386 U CN 210293386U CN 201920865244 U CN201920865244 U CN 201920865244U CN 210293386 U CN210293386 U CN 210293386U
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- liquid level
- level detection
- reed switch
- liquid
- magnetic suspension
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Abstract
The utility model relates to the technical field of liquid level detection, and discloses a liquid level detection device, which is characterized by comprising a liquid level detection bin, a magnetic suspension, a reed switch, a power supply and an MCU, wherein the liquid level detection bin is internally filled with circulating liquid, the magnetic suspension is arranged in the liquid level detection bin and is suspended at the liquid level of the liquid, the reed switch is arranged at the lower part of the liquid level detection bin, the power supply is electrically connected with the reed switch, and the MCU is electrically connected with the reed switch; the reed switch is provided with an elastic switch which can be subjected to magnetic suspension; when the magnetic suspension is far away from the reed switch, the elastic switch is switched off; when the magnetic suspension is close to the reed switch, the elastic switch is closed under the action of the magnetic force of the magnetic suspension; the liquid level detection device is simple in structure, and can effectively detect whether liquid is used up or not, so that a user is reminded of whether liquid needs to be supplemented or not.
Description
Technical Field
The utility model belongs to the technical field of the technique of liquid level detection and specifically relates to a liquid level detection device.
Background
With the development of scientific technology and the improvement of living standard of people, at present, in order to improve the experience degree of users, more and more automatic liquid outlet devices appear, great convenience is provided for the users, and liquid output by the automatic liquid outlet devices can be wine, tea, drinks, disinfectant and the like.
Because the liquid contained in the automatic liquid outlet device is continuously output, a liquid level detection device with a simple structure is needed for detecting whether residual liquid still exists in the automatic liquid outlet device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a liquid level detection device aims at solving the problem that lacks a simple structure's liquid level detection device among the prior art.
The utility model is realized in such a way, a liquid level detection device comprises a liquid level detection bin, a magnetic suspension, a reed switch, a power supply and a MCU, wherein the liquid level detection bin is internally provided with circulating liquid, the magnetic suspension is arranged in the liquid level detection bin and is suspended at the liquid level of the liquid, the reed switch is arranged at the lower part of the liquid level detection bin, the power supply is electrically connected with the reed switch, and the MCU is electrically connected with the reed switch; the reed switch is provided with an elastic switch which can be subjected to the magnetic suspension effect; when the magnetic suspension is far away from the reed switch, the elastic switch is switched off; when the magnetic suspension is close to the reed switch, the elastic switch is closed under the action of the magnetic force of the magnetic suspension.
Furthermore, a first resistor is arranged between the power supply and the reed pipe, one end of the first resistor is electrically connected to the power supply, and the other end of the first resistor is electrically connected to the reed pipe.
Furthermore, the liquid level detection device comprises a ground protection circuit, the ground protection circuit comprises a second resistor, one end of the second resistor is electrically connected to the reed pipe, and the other end of the second resistor is grounded.
Further, the magnetic levitation is an annular magnetic ring.
Compared with the prior art, the liquid level detection device provided by the utility model has the advantages that the reed pipe is arranged at the lower part of the liquid level detection bin, when the liquid level is positioned above the reed pipe, the magnetic levitation is suspended at the liquid level, and because the magnetic levitation is far away from the reed pipe, the magnetic levitation can not act on the elastic switch, the elastic switch is disconnected, the MCU detects that the circuit is low level, which indicates that liquid exists, and the liquid level is positioned above the reed pipe; when the liquid level detection bin has no liquid or less liquid, the magnetic suspension is positioned at the lower part of the liquid level detection bin, so that the magnetic suspension is close to the reed switch, the elastic switch is closed due to the action of the magnetic suspension on the elastic switch, and the MCU detects that the circuit is at a high level, so that the liquid is not in the detection bin or less liquid is detected, and the liquid is prompted to be added; the liquid level detection device is simple in structure, and can effectively detect whether liquid is used up or not, so that a user is reminded of whether liquid needs to be supplemented or not.
Drawings
Fig. 1 is a schematic structural diagram of a liquid level detection device provided by an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
Referring to fig. 1, a preferred embodiment of the present invention is provided.
A liquid level detection device comprises a liquid level detection bin 1, a magnetic suspension 2, a reed switch 3, a power supply and an MCU4, wherein the liquid level detection bin 1 is internally filled with circulating liquid, the magnetic suspension 2 is arranged in the liquid level detection bin 1 and is suspended at the liquid level of the liquid and has magnetism, the reed switch 3 is arranged at the lower part of the liquid level detection bin 1, the power supply is electrically connected with the reed switch 3, and the MCU4 is electrically connected with the reed switch 3; the reed switch 3 is provided with an elastic switch which can be acted by the magnetic suspension 2; when the magnetic suspension 2 is far away from the reed switch 3, the elastic switch is switched off; when the magnetic suspension 2 is close to the reed switch 3, the elastic switch is closed under the action of the magnetic force of the magnetic suspension 2.
According to the liquid level detection device, the reed switch 3 is arranged at the lower part of the liquid level detection bin 1, when the liquid level is positioned above the reed switch 3, the magnetic levitation 2 is suspended at the liquid level, the magnetic levitation 2 is far away from the reed switch 3, the magnetic levitation 2 cannot act on the elastic switch, the elastic switch is disconnected, and the MCU4 detects that the circuit is low level, which indicates that liquid exists, and the liquid level is positioned above the reed switch 3; when the liquid level detection bin 1 has no liquid or less liquid, the magnetic suspension 2 is positioned at the lower part of the liquid level detection bin 1, so that the magnetic suspension 2 is close to the reed switch 3, the elastic switch is closed due to the action of the magnetic suspension 2 on the elastic switch, and the MCU4 detects that the circuit is at a high level, which indicates that no liquid or less liquid exists in the detection bin, and prompts that liquid needs to be added; the liquid level detection device is simple in structure, and can effectively detect whether liquid is used up or not, so that a user is reminded of whether liquid needs to be supplemented or not.
Specifically, a first resistor 5 is arranged between the power supply and the reed pipe 3, one end of the first resistor 5 is electrically connected to the power supply, and the other end of the first resistor 5 is electrically connected to the reed pipe 3; the power supply supplies power to the whole circuit.
Specifically, the liquid level detection device comprises a grounding protection circuit, the grounding protection circuit comprises a second resistor 6, one end of the second resistor 6 is electrically connected to the reed pipe 3, and the other end of the second resistor 6 is grounded; by arranging the grounding protection circuit, static electricity generated by the device can be led into the ground, and the safety of the device is improved.
Preferably, the magnetic levitation 2 is an annular magnetic ring.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. A liquid level detection device is characterized by comprising a liquid level detection bin, a magnetic suspension, a reed switch, a power supply and an MCU, wherein the liquid level detection bin is internally filled with circulating liquid, the magnetic suspension is arranged in the liquid level detection bin and is suspended at the liquid level of the liquid and has magnetism, the reed switch is arranged at the lower part of the liquid level detection bin, the power supply is electrically connected with the reed switch, and the MCU is electrically connected with the reed switch; the reed switch is provided with an elastic switch which can be subjected to the magnetic suspension effect; when the magnetic suspension is far away from the reed switch, the elastic switch is switched off; when the magnetic suspension is close to the reed switch, the elastic switch is closed under the action of the magnetic force of the magnetic suspension.
2. The fluid level detecting device according to claim 1, wherein a first resistor is disposed between the power source and the reed pipe, one end of the first resistor is electrically connected to the power source, and the other end of the first resistor is electrically connected to the reed pipe.
3. The liquid level detecting device according to claim 1, wherein the liquid level detecting device comprises a ground protection circuit, the ground protection circuit comprises a second resistor, one end of the second resistor is electrically connected to the reed pipe, and the other end of the second resistor is grounded.
4. A liquid level gauge according to any of claims 1-3, wherein the magnetic levitation is an annular magnetic ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920865244.4U CN210293386U (en) | 2019-06-10 | 2019-06-10 | Liquid level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920865244.4U CN210293386U (en) | 2019-06-10 | 2019-06-10 | Liquid level detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210293386U true CN210293386U (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920865244.4U Active CN210293386U (en) | 2019-06-10 | 2019-06-10 | Liquid level detection device |
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| CN (1) | CN210293386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022111363A1 (en) * | 2020-11-30 | 2022-06-02 | 深圳市普渡科技有限公司 | Robot with ultrasonic liquid level monitoring function |
-
2019
- 2019-06-10 CN CN201920865244.4U patent/CN210293386U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022111363A1 (en) * | 2020-11-30 | 2022-06-02 | 深圳市普渡科技有限公司 | Robot with ultrasonic liquid level monitoring function |
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Effective date of registration: 20200708 Address after: 210000 second floor, No. 58-1, Yudao street, Qinhuai District, Nanjing, Jiangsu Province Patentee after: Nanjing aiyoumi Medical Technology Co., Ltd Address before: 309, building 4, chuqicheng, No. 57, Andemen street, Yuhua District, Nanjing City, Jiangsu Province, 210012 Patentee before: NANJING PINCHANG TECHNOLOGY DEVELOPMENT Co.,Ltd. |