Quick-release multifunctional floating ball structure and cleaning machine
By designing a quick-release multi-functional float structure that combines the dual protection of electronic and mechanical floats, the problems of large space occupation, difficult disassembly, and misjudgment of existing cleaning machine float structures are solved, achieving stability and safety of water full protection and improving user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG YILI CLEANING EQUIP CO LTD
- Filing Date
- 2025-03-26
- Publication Date
- 2026-06-02
AI Technical Summary
Existing cleaning machines with float structures suffer from problems such as large space occupation, poor sealing, high price, and difficulty in disassembly. In particular, they are prone to misjudgment or safety risks when the water level is sensed and the suction action is fast.
A quick-release multi-functional float structure was designed, including a built-in pipe connector, an electronic float assembly, and a mechanical float assembly. The two work independently and assist each other. The quick-release function is achieved through the built-in pipe connector. The electronic float assembly uses a magnet to sense the Hall sensor board to stop the machine. The mechanical float assembly achieves multiple water full protection by floating and blocking the air intake.
It improves the stability and safety of water full protection, reduces the risk of water vapor being drawn into the motor, facilitates quick disassembly and cleaning, and enhances the user experience.
Smart Images

Figure CN224307273U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cleaning machine technology, specifically to a quick-release multi-functional float structure and a cleaning machine. Background Technology
[0002] Most cleaning products are designed with a float structure as a dust-filled protection mechanism. Currently, there are two main types of floats used in carpet cleaners: one is a mechanical float, which uses buoyancy to directly block the air vent. This type of float takes up a lot of space, has poor sealing after operation, and can leave residual suction. The other is an electronic sensor float, which uses an internal magnetic sensing circuit board to trigger alarms and stop the machine. This type is slightly more expensive and requires a certain magnetic sensing time. If the suction is too fast, it may exceed the water level. Furthermore, many float structures are designed to be large and complex, and their unique fixing methods make cleaning the dustbin difficult.
[0003] Patent document CN213332687U discloses a wastewater treatment device based on float-controlled locking. This utility model, also based on a float-controlled locking device, belongs to the field of wastewater treatment. It employs a detachable float for easy removal and replacement, and an added inlet head guides the wastewater, preventing excessive movement upon entry that could affect sludge settling. While this solution also uses a float for locking, its overall concept differs significantly from this utility model. Utility Model Content
[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a quick-release multi-functional float structure and cleaning machine.
[0005] The quick-release multi-functional float structure provided by this utility model includes a built-in pipe connector, an electronic float assembly, and a mechanical float assembly;
[0006] The built-in pipe connector is snapped into the outer sewage tank. The built-in pipe connector is provided with an extended air suction pipe and an extended sewage suction pipe. The extended air suction pipe and the extended sewage suction pipe are respectively sleeved on the top end of the air suction pipe and the top end of the sewage suction pipe inside the outer sewage tank.
[0007] The mechanical float assembly is floatably disposed inside the external sewage tank and located on one side of the extended air intake pipe, and is used to block or detach from the air intake of the extended air intake pipe by floating.
[0008] The electronic float assembly is floatably installed inside the external sewage tank and is located between the built-in pipe joint and the wall of the external sewage tank. The electronic float assembly is used to generate a shutdown electrical signal by floating to the sensor plate on the tank wall.
[0009] Preferably, the built-in pipe connector further includes a connector body, which is disposed between the extended air suction pipe and the extended sewage suction pipe;
[0010] The connector body has an opening on one side near the wall of the external sewage tank, forming a floating chamber between itself and the wall of the external sewage tank. The bottom of the floating chamber is provided with a floating groove that matches the electronic float assembly, and the electronic float assembly can float in the floating groove.
[0011] Preferably, a Hall effect sensor plate is installed on the wall of the external sewage tank, and a magnet is installed on the electronic float assembly;
[0012] When the electronic float assembly rises to a preset height, the magnet of the electronic float assembly senses the Hall sensor plate, and the Hall sensor plate sends a stop signal to the main board of the external sewage tank.
[0013] Preferably, the mechanical float assembly includes a floating part, a support part, and a plug;
[0014] The support unit is installed on top of the floating unit, and the plug is installed on top of the support unit. When the floating unit floats to a preset height range, the plug blocks the air intake of the extended air intake tube.
[0015] Preferably, a limiting groove is provided on the support portion along the vertical direction, and a limiting slider protrudes from one side of the extended suction tube;
[0016] The limiting slider is slidably disposed inside the limiting groove to limit the movement of the mechanical float assembly.
[0017] Preferably, the built-in pipe connector has a slot on one side of the connector body, the slot being arranged vertically for engaging with the buckle on the inner wall of the external sewage tank.
[0018] Preferably, the top of the floating chamber is a closed structure used to limit the position of the electronic float assembly.
[0019] The cleaning machine provided by this utility model includes a sewage tank, a sewage suction mechanism, and the quick-release multi-functional float structure, wherein the quick-release multi-functional float structure is detachably installed inside the sewage tank.
[0020] The main board of the suction mechanism is connected to the sensor board on the inner wall of the sewage tank.
[0021] Preferably, the system also includes a sewage tank cover and a sealing ring, wherein the sewage tank cover is installed on the top of the sewage tank and the sealing ring is installed between the sewage tank cover and the top of the sewage tank.
[0022] Preferably, the lower edge of the sewage tank cover is provided with a snap-fit mounting part, and the sealing ring is snapped into the snap-fit mounting part.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] This utility model provides a structure that can simultaneously equip two sets of float systems to achieve multiple water full protection. The two sets of float systems can work independently, thereby reducing the safety risks caused by the abnormal failure of a single float system. Moreover, the two floats assist each other to maintain the stability of the water full sewage volume and reduce the probability of the motor sucking in water vapor. At the same time, the quick-release structure allows for convenient and quick disassembly and cleaning, improving the user experience. Attached Figure Description
[0025] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0026] Figure 1 This is an exploded view of the present invention;
[0027] Figure 2 This is a schematic diagram illustrating the working principle of this utility model;
[0028] Figure 3 This is a side view of the internal structure of the present invention.
[0029] Figure 4 This is an assembly diagram of the built-in pipe connector, electronic float assembly, and mechanical float assembly in this utility model;
[0030] Figure 5 This is a schematic diagram of the assembly of the built-in pipe joint, electronic float assembly, and mechanical float assembly with the sewage tank in this utility model;
[0031] Figure 6 This is a schematic diagram of the built-in pipe connector in this utility model;
[0032] Figure 7 This is a schematic diagram of the mechanical float assembly in this utility model.
[0033] The diagram shows:
[0034] Detailed Implementation
[0035] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.
[0036] This utility model discloses a quick-release multi-functional float structure and cleaning machine, which can be equipped with two float systems at the same time to achieve multiple water full protection. The two float systems can work independently, thereby reducing the safety risks caused by the abnormal failure of a single float system. The two floats assist each other to maintain the stability of the water full sewage volume, reduce the probability of the motor sucking in water vapor, and at the same time, they can be easily and quickly disassembled and cleaned, improving the user experience.
[0037] According to the quick-release multi-functional float structure provided by this utility model, such as Figures 1-5 As shown, it includes a built-in pipe connector 3, an electronic float assembly 4, and a mechanical float assembly 5. The built-in pipe connector 3 is snapped into the outer sewage tank. The built-in pipe connector 3 is equipped with an extended air suction pipe 31 and an extended sludge suction pipe 32, which are respectively fitted onto the top ends of the air suction pipe and the top ends of the sludge suction pipe inside the outer sewage tank. The built-in pipe connector 3 serves as a support for the float inside the sewage tank and also extends the internal air and sludge suction duct. This component guides the flow of internal water and air. Preferably, as shown... Figure 5 As shown, the built-in pipe connector 3 has a slot on one side of its connector body. The slot is vertically oriented and is used to engage with a snap-fit mechanism on the inner wall of the external sewage tank. This snap-fit design facilitates cleaning. Disassembly is achieved by simply opening the tank wall and then removing the built-in pipe connector 3 upwards, enabling quick-release.
[0038] The mechanical float assembly 5 is floatably installed inside the external sewage tank and located on one side of the extended air intake pipe 31. It is used to block or detach from the air intake port of the extended air intake pipe 31 by floating. Preferably, the mechanical float assembly 5 is a plastic part that can float up and down outside the air intake pipe inside the sewage tank. It is limited by the built-in pipe joint 3. When it reaches the limit point, the plug 54 above it can block the air intake port, and the air volume gradually decreases until it is completely closed.
[0039] In a preferred example, such as Figure 7As shown, the mechanical float assembly 5 includes a floating part 51, a support part 52, and a plug 54. The support part 52 is installed on top of the floating part 51, and the plug 54 is installed on top of the support part 52. When the floating part 51 floats to a preset height range, the plug 54 blocks the air intake of the extended air intake pipe 31. A limiting groove 53 is provided on the support part 52 in the vertical direction, and a limiting slider 34 protrudes from one side of the extended air intake pipe 31. The limiting slider 34 is slidably disposed inside the limiting groove 53 to limit the mechanical float assembly 5.
[0040] The electronic float assembly 4 is floatably installed inside the external sewage tank and is located between the built-in pipe joint 3 and the wall of the external sewage tank. The electronic float assembly 4 is used to generate a shutdown electrical signal by floating the sensor plate on the tank wall.
[0041] In a preferred embodiment, the built-in pipe connector 3 further includes a connector body disposed between the extended air suction pipe 31 and the extended sewage suction pipe 32. The connector body has an opening on one side near the wall of the external sewage tank, forming a floating chamber 33 between itself and the wall. The bottom of the floating chamber 33 has a floating groove matching the electronic float assembly 4, allowing the electronic float assembly 4 to float within the floating groove. The top of the floating chamber 33 is a closed structure used to limit the movement of the electronic float assembly 4. A Hall effect sensor plate 6 is installed on the wall of the external sewage tank, and a magnet is installed on the electronic float assembly 4. When the electronic float assembly 4 rises to a preset height, the magnet of the electronic float assembly 4 senses the Hall effect sensor plate 6, and the Hall effect sensor plate 6 sends a stop signal to the main board of the external sewage tank.
[0042] Preferably, the electronic float assembly 4 is a small float welded by ultrasonic welding, with a built-in magnet, which can float up and down in the floating chamber 33 formed by the built-in pipe joint 3 and the sewage tank wall. When it reaches a designated position, it can sense the Hall sensor plate 6 assembled inside the machine body, thereby generating an action; the Hall sensor plate 6 is a circuit board that can sense magnetic force, used to monitor the internal water level, and after sensing, it sends a signal to the main board. It is assembled on the inner wall of the machine body near the float.
[0043] The cleaning machine provided by this utility model includes a sewage tank 7, a suction mechanism, and the aforementioned quick-release multi-functional float structure. The quick-release multi-functional float structure is detachably installed inside the sewage tank 7. The main board of the suction mechanism is signal-connected to the induction plate on the inner wall of the sewage tank 7. The cleaning machine also includes a sewage tank cover 1 and a sealing ring 2. Specifically, the sewage tank cover 1 is the cover plate of the dust bin device, and the sealing ring 2 is installed on it. It has a buckle for easy opening and cleaning, forming a sealed chamber with the sewage tank 7 to absorb sewage. The sealing ring 2 is installed on the sewage tank cover 1 to ensure the airtightness of the dust bin and improve the vacuum degree.
[0044] The working principle of this utility model is as follows:
[0045] Working principle of electronic float: Figure 2 As shown, wastewater enters the wastewater tank via the left-hand route, while the right-hand route is the motor's air intake route. When the wastewater reaches a certain height, the electronic float assembly 4 begins to rise, as shown. Figure 3 As shown, when it floats to the designated position, the internal magnet can sense the Hall sensor 6, and the Hall sensor 6 sends a signal to stop the alarm. When the single electronic float assembly 4 is working, if the user sucks in the float at a fast speed, the float will have a certain reaction time and a certain capacity error.
[0046] Working principle of mechanical float: Figure 5 As shown, when the water level in the bucket rises, the mechanical float assembly 5 also rises, gradually blocking the air inlet until it is completely closed. In this state, only the air duct is blocked; the machine continues to operate and requires manual shutdown and cleaning. When the mechanical float assembly 5 is working, there may be a small residual suction force after the air duct is closed, and it is also easily affected by the suction rate, causing water level deviation. In addition, blocking the air duct for a long time will have a certain impact on the machine, especially if it is not shut down and cleaned for a long time after the water is full, which poses a certain risk.
[0047] Two types of floats operate simultaneously: When two floats are installed at the same time, multiple protections are achieved. As the liquid level rises, both floats rise simultaneously. As the mechanical float assembly 5 rises, it gradually closes the air duct, reducing the airflow and the rate of wastewater intake. The internal water surface gradually becomes calmer, and the rising speed of the electronic float assembly 4 also gradually slows down. It is less affected by water surface fluctuations compared to a single float, and there is enough time to detect the Hall sensor 6 at the critical water level sensing point, thus triggering a shutdown alarm. Even if the suction is too fast and there is no time to detect, the mechanical float assembly 5 will continue to rise, completely blocking the air duct. At this point, there is almost no suction, the liquid surface fluctuations stop, and the electronic float assembly 4 will then detect the shutdown alarm. The two floats can protect each other, and the cleaning effect is not affected by the scene or suction rate, maintaining a stable water level. Gradually reducing the suction rate also increases the tank capacity, especially effective for suctioning foamy wastewater.
[0048] like Figure 4 , Figure 5 The diagram shown illustrates the principle of the quick-release function of this invention. First, forcefully pry open the side wall of the sewage tank with the side facing outwards. The buckle will disengage from the slot of the internal pipe connector 3, allowing the internal pipe connector 3 to be pulled upwards, simultaneously bringing out two floats. The floats can then be easily removed following the direction of the arrow. The buckle has a chamfered edge for assembly; during assembly, simply reverse the operation and press downwards until the buckle is locked in place. The quick-release structure also allows for convenient configuration selection; customers can choose between a single float structure and a double float structure according to their needs.
[0049] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0050] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.
Claims
1. A quick-release multi-functional float structure, characterized in that, Includes a built-in pipe connector (3), an electronic float assembly (4), and a mechanical float assembly (5); The built-in pipe connector (3) is snapped into the outer sewage tank. The built-in pipe connector (3) is provided with an extended air suction pipe (31) and an extended sewage suction pipe (32). The extended air suction pipe (31) and the extended sewage suction pipe (32) are respectively sleeved on the top of the air suction pipe and the top of the sewage suction pipe inside the outer sewage tank. The mechanical float assembly (5) is floatably disposed inside the external sewage tank and located on one side of the extended air intake pipe (31) for use in blocking or disengaging from the air intake port of the extended air intake pipe (31) by floating. The electronic float assembly (4) is floatably installed inside the external sewage tank and is located between the built-in pipe joint (3) and the wall of the external sewage tank. The electronic float assembly (4) is used to generate a shutdown electrical signal by floating the sensor plate on the tank wall.
2. The quick-release multi-functional float structure according to claim 1, characterized in that, The built-in pipe connector (3) also includes a connector body, which is disposed between the extended suction pipe (31) and the extended sewage suction pipe (32); The connector body has an opening on one side near the wall of the external sewage tank, forming a floating chamber (33) between it and the wall of the external sewage tank. The bottom of the floating chamber (33) is provided with a floating groove that matches the electronic float assembly (4). The electronic float assembly (4) can float in the floating groove.
3. The quick-release multi-functional float structure according to claim 1, characterized in that, A Hall sensor plate (6) is installed on the wall of the external sewage tank, and a magnet is installed on the electronic float assembly (4); When the electronic float assembly (4) floats to a preset height, the magnet of the electronic float assembly (4) senses the Hall sensor plate (6), and the Hall sensor plate (6) sends a stop signal to the main board of the external sewage tank.
4. The quick-release multi-functional float structure according to claim 1, characterized in that, The mechanical float assembly (5) includes a floating part (51), a support part (52), and a plug (54). The support part (52) is installed on the top of the floating part (51), and the plug (54) is installed on the top of the support part (52). When the floating part (51) floats to a preset height range, the plug (54) blocks the air inlet of the extended air intake pipe (31).
5. The quick-release multi-functional float structure according to claim 4, characterized in that, The support part (52) is provided with a limiting groove (53) along the vertical direction, and a limiting slider (34) protrudes from one side of the extended suction pipe (31). The limiting slider (34) is slidably disposed inside the limiting groove (53) for limiting the mechanical float assembly (5).
6. The quick-release multi-functional float structure according to claim 1, characterized in that, The built-in pipe connector (3) has a slot on one side of the connector body. The slot is arranged in a vertical direction and is used to engage with the buckle on the inner wall of the external sewage tank.
7. The quick-release multi-functional float structure according to claim 2, characterized in that, The top of the floating chamber (33) is a closed structure used to limit the electronic float assembly (4).
8. A cleaning machine, characterized in that, It includes a sewage tank (7), a sewage suction mechanism, and a quick-release multi-functional float structure as described in any one of claims 1-7, wherein the quick-release multi-functional float structure is detachably disposed inside the sewage tank (7); The main board of the suction mechanism is connected to the induction plate on the inner wall of the sewage tank (7).
9. The cleaning machine according to claim 8, characterized in that, It also includes a sewage tank cover (1) and a sealing ring (2), wherein the sewage tank cover (1) is installed on the top of the sewage tank (7), and the sealing ring (2) is installed between the sewage tank cover (1) and the top of the sewage tank (7).
10. The cleaning machine according to claim 9, characterized in that, The lower edge of the cover (1) of the sewage tank is provided with a snap-fit mounting part, and the sealing ring (2) is snapped into the snap-fit mounting part.