Vacuum machine with liquid extraction alarm
By introducing a liquid-drawing alarm device into the vacuum machine, and utilizing the combination of infrared sensors and solenoid valves, the problem of liquid entering the vacuum machine during the vacuuming process is solved, realizing a safe water detection and alarm function to prevent machine damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU MIDON TECH CO LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-06-05
AI Technical Summary
Existing vacuum machines cannot effectively prevent liquid from entering the machine during the vacuuming process, which can lead to machine damage, and they also lack liquid detection and alarm functions.
A liquid pumping alarm device was designed, including an infrared sensor, an LED light, a battery, and a microcontroller unit (MCU). The infrared sensor detects the water level and controls the vacuum pump and solenoid valve, issuing an alarm and stopping operation to prevent water from entering the machine.
It can issue an alarm when a certain amount of water accumulates inside the vacuum machine, and control the vacuum pump to stop working through a solenoid valve to avoid machine damage and ensure safe and reliable vacuuming operation.
Smart Images

Figure CN224328444U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum equipment technology, specifically a vacuum machine with a liquid pumping alarm device. Background Technology
[0002] In existing technologies, vacuum machines can generally only perform simple vacuuming. If there is water in the vacuuming area, the water will also be drawn into the vacuum machine, causing damage to the machine's interior. Alternatively, they may only have a simple water collection function and lack an alarm and shutdown function when water is detected. When vacuuming vacuum-sealed containers or textured bags, liquid may be drawn into the machine, leading to product damage. Utility Model Content
[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a liquid extraction alarm device and a vacuum machine to solve the problems mentioned in the background art.
[0004] To achieve the above-mentioned utility model objectives, this utility model provides a liquid extraction alarm device and a vacuum machine. The vacuum machine includes a liquid extraction alarm device, which comprises an infrared sensor, an LED light, and a battery. The infrared sensor is electrically connected to a microcontroller unit (MCU) via an operational amplifier. The LED light and the battery are both electrically connected to the MCU. The vacuum machine also includes a housing, with the liquid extraction alarm device disposed inside the housing. The housing also contains a water storage component and a vacuum pump. A water baffle is provided above the water storage component. The water storage component includes a suction channel and a first water collection tank. The suction channel is disposed within the first water collection tank. The infrared sensor is disposed within or outside the first water collection tank. The housing also contains a vacuum pump for vacuuming, a solenoid valve for controlling the release of negative pressure, and a negative pressure switch for controlling the negative pressure value. The negative pressure switch and the solenoid valve are both electrically connected to the MCU.
[0005] Furthermore, the infrared sensor is disposed on the inner or outer wall of the first water collection tank.
[0006] Furthermore, the water storage device also includes a second water collection tank, which is separated from the first water collection tank by a partition.
[0007] Furthermore, the water-blocking component includes a water-blocking groove, which is located above the air extraction channel.
[0008] Furthermore, the housing is also provided with a support frame for supporting the water storage component and the water baffle, and the water storage component is detachably connected to the support frame.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] By setting up a liquid collection alarm device, an alarm will be triggered when a certain amount of water accumulates inside the vacuum machine. The water level inside the first water collection tank is detected by a sensor, and an alarm for internal water collection is triggered by lighting up an LED light.
[0011] By setting up a solenoid valve, if water accumulates inside the vacuum machine, the motor pump will stop working. At the same time, the solenoid valve will be activated via the PCB board to release the negative pressure, clean the water inside, and then perform vacuuming again. Attached Figure Description
[0012] Figure 1 This is a structural block diagram of the liquid extraction alarm device according to an embodiment of the present invention;
[0013] Figure 2 This is a three-dimensional structural diagram of an embodiment of the present utility model;
[0014] Figure 3 This is a cross-sectional structural diagram of an embodiment of the present utility model;
[0015] Figure 4 for Figure 3 A magnified structural diagram of A in the middle. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. The embodiments of this utility model are described below with reference to the accompanying drawings.
[0017] refer to Figure 1 A liquid extraction alarm device includes a sensor, an LED light, and a battery. The sensor is electrically connected to a microcontroller unit (MCU) via an operational amplifier. The LED light and the battery are both electrically connected to the MCU. The sensor is an infrared sensor 7, and the MCU can be mounted on a PCB board 11.
[0018] refer to Figures 2-4 A vacuum machine including the above-mentioned liquid extraction alarm device, the vacuum machine includes a housing 1, the liquid extraction alarm device is disposed inside the housing 1, the housing 1 is also provided with a water storage component 3 and a vacuum pump, a water baffle 4 is provided above the water storage component 3, the water storage component 3 includes a suction channel 5 and a first water collection tank 6, the suction channel 5 is disposed inside the first water collection tank 6, the sensor is disposed inside the first water collection tank 6 or outside the first water collection tank 6, the housing 1 is also provided with a vacuum pump 8 for vacuuming, a solenoid valve 9 for controlling the release of negative pressure and a negative pressure switch 10 for controlling the negative pressure value, the negative pressure switch 10 and the solenoid valve 9 are both electrically connected to a microcontroller unit MCU;
[0019] Infrared sensor 7 is installed on the inner or outer wall of the first water collection tank 6;
[0020] The sensor is an infrared sensor 7, which is set on the inner wall of the first water collection tank 6. If the first water collection tank 6 is made of transparent plastic, the infrared sensor 7 can also be set on the outer wall of the first water collection tank 6. When both sensors detect water accumulation in the first water collection tank 6, the vacuum pump 8 is controlled to stop working, the solenoid valve 9 is controlled to act, the negative pressure state is released, and the internal water is cleaned before the operation resumes.
[0021] The water storage component 3 also includes a second water collection tank 12, which is separated from the first water collection tank 6 by a partition 13. The second water collection tank 12 acts as a buffer. When a large amount of water is drawn in within a short period of time, the excess water will be sent to the second water collection tank 12 through the partition 13, thus preventing water in the first water collection tank 6 from entering the machine.
[0022] The water baffle 4 includes a water baffle groove 14, which is located above the air extraction channel 5. By setting the water baffle groove 14, the first water collection tank 6 can better collect the water it draws in.
[0023] The housing 1 is also equipped with a support frame 2 for supporting the water storage component 3 and the water baffle 4. The water storage component 3 is detachably connected to the support frame 2. The vacuum pump is set on the support frame 2 to generate negative pressure during vacuum adsorption. The water storage component 3 needs to be disassembled after water is collected inside. After the water is cleaned, the vacuum operation can be carried out. Specifically, a limiting groove can be set on the support frame 2 and a limiting card can be set on the water storage component 3. The limiting groove has a slot for the limiting card to enter. After entering, the limiting card can be rotated to complete the connection.
[0024] By setting up a liquid collection alarm device, an alarm will be triggered when a certain amount of water accumulates inside the vacuum machine. The water level inside the first water collection tank 6 is detected by a sensor, and an alarm for internal water collection is triggered by lighting up an LED light.
[0025] By setting solenoid valve 9, if water accumulates inside the vacuum machine, the motor pump will stop working. At the same time, the solenoid valve 9 will be activated via the PCB board to release the negative pressure state, clean the water inside, and then perform vacuuming.
[0026] The technical solution of this utility model has been described above with reference to specific embodiments. However, it should be noted that the above description is only for explaining the solution of this utility model and should not be construed as a specific limitation on the scope of protection of the utility model in any way. Based on this explanation, other specific embodiments or equivalent substitutions of this utility model that can be conceived by those skilled in the art without creative effort will all fall within the scope of protection of this utility model.
Claims
1. A vacuum machine with a liquid extraction alarm device, characterized in that, The vacuum machine includes a liquid extraction alarm device, which comprises an infrared sensor, an LED light, and a battery. The infrared sensor is electrically connected to a microcontroller unit (MCU) via an operational amplifier. The LED light and the battery are both electrically connected to the MCU. The vacuum machine also includes a housing, with the liquid extraction alarm device disposed inside the housing. The housing also contains a water storage component and a vacuum pump. A water baffle is provided above the water storage component. The water storage component includes a suction channel and a first water collection tank. The suction channel is disposed within the first water collection tank. The infrared sensor is disposed within or outside the first water collection tank. The housing also contains a vacuum pump for vacuuming, a solenoid valve for controlling the release of negative pressure, and a negative pressure switch for controlling the negative pressure value. The negative pressure switch and the solenoid valve are both electrically connected to the MCU.
2. The vacuum machine according to claim 1, characterized in that, The infrared sensor is installed on the inner or outer wall of the first water collection tank.
3. The vacuum machine according to claim 1, characterized in that, The water storage device also includes a second water collection tank, which is separated from the first water collection tank by a partition.
4. The vacuum machine according to claim 1, characterized in that, The water-blocking component includes a water-blocking groove, which is located above the air extraction channel.
5. The vacuum machine according to claim 1, characterized in that, The housing is further provided with a support frame for supporting the water storage component and the water baffle component, and the water storage component is detachably connected to the support frame.