Dust collector

Abstract

The invention discloses a dust collector, and aims to solve the problems of short circuit, electric leakage and damage to electric devices such as a head motor due to the fact that accumulated water is sucked into the head after an existing dust collector inclines or topples over. The inclination sensing device is configured to enable the working circuit to be switched on when the inclination angle of the dust collector is smaller than the set maximum inclination angle and enable the working circuit to be switched off when the inclination angle of the dust collector is larger than the set maximum inclination angle. During working, once the inclination angle of the dust collector is larger than the set maximum inclination angle, the working circuit is switched off, the dust collector stops working, and the bad phenomena of short circuit, electric leakage, damage to electric devices such as a head motor and the like caused by the fact that accumulated water is sucked into the head are avoided. And when the inclination angle of the dust collector is smaller than the set maximum inclination angle, the working circuit is switched on to keep the normal work of the dust collector, so that the dust collector can cope with the conditions of slope working, bumping and the like and cannot stop working to affect dust collection.

Description

Technical Field

[0001] The invention belongs to a vacuum cleaner, and in particular relates to a vacuum cleaner capable of disconnecting a working circuit when the vacuum cleaner is tilted. Background Art

[0002] For vacuum cleaners with a water absorption function, the sucked water accumulates in the dust bucket. If the vacuum cleaner falls over during use, or if the vacuum cleaner is tilted when there is water in the dust bucket, the accumulated water in the dust bucket will be sucked into the head, causing short circuits, leakage, damage to electrical components such as the head motor, and other adverse phenomena. Summary of the invention

[0003] The technical problem to be solved and the technical task proposed by the present invention are to overcome the defect that the accumulated water will be sucked into the head of the existing vacuum cleaner after it is tilted or tipped over, and to provide a vacuum cleaner that can disconnect the working circuit when tilted.

[0004] To achieve the above-mentioned purpose, the vacuum cleaner of the present invention comprises a dust bucket and a head which are disassembled and assembled together, the dust bucket having a suction port, the head having an air suction port and an air exhaust port, the head being provided with a filter component which is located in the dust bucket and covers the air suction port, the filter component isolating the suction port from the air suction port, and is characterized in that: the head is provided with a tilt sensing device for sensing the tilt angle of the vacuum cleaner, the tilt sensing device being configured to connect the working circuit when the tilt angle of the vacuum cleaner is less than the set maximum tilt angle, and to disconnect the working circuit when the tilt angle of the vacuum cleaner is greater than the set maximum tilt angle.

[0005] Accordingly, when the vacuum cleaner is working, once the tilt angle is greater than the set maximum tilt angle, the working circuit is disconnected and the vacuum cleaner stops working, so as to prevent the accumulated water from being sucked into the head and causing short circuit, leakage, damage to the head motor and other electrical components, etc. When the tilt angle of the vacuum cleaner is less than the set maximum tilt angle, the working circuit is connected to keep the vacuum cleaner working normally, so that the vacuum cleaner can cope with slope working, bumps, etc., without stopping to affect vacuuming.

[0006] In one embodiment, the tilt sensing device includes a ball and a trigger switch, and the trigger switch is connected to the working circuit; the tilt sensing device is configured such that when the tilt angle of the vacuum cleaner is less than the set maximum tilt angle, the ball contacts the trigger switch to connect the working circuit, and when the tilt angle of the vacuum cleaner is greater than the set maximum tilt angle, the ball deviates from the trigger switch to disconnect the working circuit. This mechanical structure of the tilt sensing device is simple in structure, sensitive in action, less prone to failure, and low in cost.

[0007] In order to restrict the rolling range of the ball and prevent the ball from malfunctioning due to external factors, the tilt sensing device includes a limit wall, which defines a rolling space. The trigger switch is adjacent to the rolling space. The ball is located in the rolling space and rolls as the vacuum cleaner tilts.

[0008] In another embodiment, the tilt sensing device is a tilt angle sensor, an electric control switch is connected in the working circuit, the electric control switch and the tilt angle sensor are both connected to the controller, and the tilt sensing device is configured as follows: when the tilt angle of the vacuum cleaner is less than the set maximum tilt angle, the controller controls the electric control switch to connect the working circuit, and when the tilt angle of the vacuum cleaner is greater than the set maximum tilt angle, the controller controls the electric control switch to disconnect the working circuit. This electronic control structure is conducive to setting parameters.

[0009] Similarly, in order to enable the vacuum cleaner to cope with situations such as bumps and not stop working due to bumps and affect vacuuming, the controller includes a timing module; when the tilt angle of the vacuum cleaner is greater than the set maximum tilt angle, the timing module times the tilt, and when the tilt time is less than the set time, the controller controls the electric control switch to connect the working circuit, and when the tilt time is greater than the set time, the controller controls the electric control switch to disconnect the working circuit.

[0010] In order to further prevent the accumulated water from being sucked into the head when the vacuum cleaner is tilted or tipped over, a float is built into the filter component. The float is located below the air inlet and blocks the air inlet by floating. Accordingly, when the vacuum cleaner tips over, the float can quickly block the air inlet to prevent the accumulated water from being sucked into the head. Moreover, when too much water accumulates, the float floats to the highest position to block the air inlet.

[0011] Since dust is isolated in the dust collection bucket by the filter component and is difficult to reach the air suction port, while accumulated water will penetrate the filter component and reach the air suction port, the vacuum cleaner can be allowed to tilt or fall sharply when vacuuming, but it is prevented from tilting or falling sharply when vacuuming water. To this end, the head is equipped with a mode switch for switching the vacuum cleaner to the vacuuming mode or the water suction mode; when the mode switch is switched to the vacuuming mode, the tilt sensing device is configured to always keep the working circuit in the on state; when the mode switch is switched to the water suction mode, the tilt sensing device is configured to turn on the working circuit when the tilt angle of the vacuum cleaner is less than the set maximum tilt angle, and to turn off the working circuit when the tilt angle of the vacuum cleaner is greater than the set maximum tilt angle.

[0012] Similarly, in order to allow the vacuum cleaner to tilt or fall sharply when sucking dust, and to prevent the vacuum cleaner from tilting or falling sharply when sucking water, a water detection element is arranged in the dust collection bucket; when the water detection element does not detect water, the tilt sensing device is arranged to make the working circuit always in the on state; when the water detection element detects water, the tilt sensing device is arranged to make the working circuit on when the tilt angle of the vacuum cleaner is less than the set maximum tilt angle, and to make the working circuit off when the tilt angle of the vacuum cleaner is greater than the set maximum tilt angle. At this time, the water detection element is connected to the head via a signal line to provide a signal to the control device of the head, such as a controller.

[0013] Preferably, the maximum tilt angle is set to 10-30°.

[0014] The present invention provides a tilt sensing device for sensing the tilt angle of the vacuum cleaner on the head, and the tilt sensing device is configured to connect the working circuit when the tilt angle of the vacuum cleaner is less than the set maximum tilt angle, and disconnect the working circuit when the tilt angle of the vacuum cleaner is greater than the set maximum tilt angle. Accordingly, during operation, once the tilt angle of the vacuum cleaner is greater than the set maximum tilt angle, the working circuit is disconnected and the vacuum cleaner stops working, thereby preventing the accumulated water from being sucked into the head and causing short circuits, leakage, damage to electrical components such as the head motor, and other undesirable phenomena. When the tilt angle of the vacuum cleaner is less than the set maximum tilt angle, the working circuit is connected to keep the vacuum cleaner working normally, so that the vacuum cleaner can cope with situations such as working on a slope and bumps, without stopping to affect vacuuming. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of an orthographic projection of a vacuum cleaner of the present invention from one viewing angle;

[0016] Figure 2 for Figure 1 AA section view;

[0017] Figure 3 for Figure 2 A schematic diagram of the vacuum cleaner shown tilted to the right;

[0018] Figure 4 A schematic diagram of a tilt sensing device in a mechanical structure of the present invention;

[0019] Figure 5 for Figure 4 A schematic diagram showing that the tilt sensing device is tilted to the left;

[0020] Figure 6 for Figure 4 AA section view;

[0021] Figure 7 A schematic diagram of the structure of a tilt sensing device in another mechanical structure form of the present invention;

[0022] Figure 8 It is a structural schematic diagram of a working circuit of the present invention;

[0023] Fig. 9 is a structural schematic diagram of a second working circuit of the present invention;

[0024] Fig.10 is a schematic structural diagram of a third working circuit of the present invention;

[0025] Fig.11 is a structural schematic diagram of a fourth working circuit of the present invention;

[0026] Fig.12 is a structural schematic diagram of a fifth working circuit of the present invention;

[0027] Fig.13 is a structural schematic diagram of a sixth working circuit of the present invention;

[0028] Description of the numbers in the figure:

[0029] 100 dust collection bucket, 101 suction port, lock 102;

[0030] 200 head, 201 air inlet, 202 air outlet, 203 filter component, 204 tilt sensing device, 205 ball, 206 trigger switch, 207 limit wall, 208 rolling space, 209 float, 210 tilt angle sensor, 211 spring, 212 lifting member, 213 terminal, 214 spring, 215 electromagnetic coil;

[0031] α is the tilt angle of the vacuum cleaner, z is the vertical line, and n is the central axis;

[0032] 300 working circuit: 301 power supply, 302 main switch, 303 fan, 304 electric control switch, 305 controller, 306 mode switch, 307 water detection element, 309 signal line. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The terms "including" and "having" and any variations thereof in the specification and claims of the present invention are intended to cover non-exclusive inclusions. For example, a method or product comprising a series of technical features is not necessarily limited to those technical features clearly listed, but may also include other technical features that are not clearly listed and can be included in the method or product.

[0035] In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. Among them, "upper" is opposite to "lower", and "left" is opposite to "right".

[0036] The present invention is described in detail below in conjunction with specific embodiments and accompanying drawings.

[0037] like Figure 1-3 The vacuum cleaner shown in the figure comprises a dust collecting bucket 100 and a head 200 which are assembled and disassembled together. The disassembly and assembly in the structure shown in the figure is realized by a lock 102. Accordingly, when the head is assembled with the dust collecting bucket as shown in the figure, dust can be sucked. By unlocking the lock, the head is removed from the dust collecting bucket, and the dust and / or accumulated water in the dust collecting bucket can be dumped out.

[0038] The dust collecting bucket 100 has a suction port 101, and the suction port 101 is used to connect the accessories for dust or water absorption through a hose not shown in the figure. The head 200 has an air suction port 201 and an air exhaust port 202, the air suction port 201 is the entrance of the fan 303, and the air exhaust port 202 is the outlet of the fan 303. When the fan 303 is working, air is sucked in from the air suction port 201 and discharged from the air exhaust port 202, thereby forming a negative pressure in the dust collecting bucket 100, which is used to absorb dust or water through the suction port 101, the hose, and the accessories. The head 200 is provided with a filter member 203 located in the dust collecting bucket 100 and covering the air suction port 201. The filter member 203 isolates the suction port 101 from the air suction port 201, thereby blocking and isolating the sucked dust or water in the dust collecting bucket and not reaching the air suction port, and the air discharged from the air exhaust port is also filtered and relatively clean air.

[0039] The head 200 is provided with a tilt sensor 204 for sensing the tilt angle of the vacuum cleaner. The tilt sensor 204 is configured to turn on the working circuit when the tilt angle α of the vacuum cleaner is less than the set maximum tilt angle, and to turn off the working circuit when the tilt angle of the vacuum cleaner is greater than the set maximum tilt angle. Generally, the vacuum cleaner is upright when the central axis is vertical, and it is tilted when the vacuum cleaner deviates from the upright state. In the figure, the angle between the central axis n of the vacuum cleaner and the vertical line z is defined as the tilt angle α of the vacuum cleaner. The set maximum tilt angle is 10-30°.

[0040] A tilt sensing device of a structure such as Figure 4-6 as well as Figure 7 As shown, it includes a ball 205, a trigger switch 206 and a limiting wall 207. The limiting wall 207 defines a rolling space 208. The trigger switch 206 is connected to the working circuit and is adjacent to the rolling space 208. The ball 205 is located in the rolling space 208 and rolls with the tilt of the vacuum cleaner. Accordingly, when the tilt angle α of the vacuum cleaner is less than the set maximum tilt angle, the ball 205 contacts the trigger switch 206 to connect the working circuit. When the tilt angle α of the vacuum cleaner is greater than the set maximum tilt angle, the ball 205 deviates from the trigger switch 206 to disconnect the working circuit.

[0041] Figure 4-5The trigger switch 206 of the structure shown has a spring 211, and the spring 211 disconnects the trigger switch by its own elastic force. Figure 4 When the tilt sensing device is upright, the ball 205 presses on the spring 211, causing the spring to connect the trigger switch, which then connects the working circuit. Figure 5 When the tilt sensing device shown in the figure tilts, the ball 205 leaves the spring 211, causing the spring to disconnect the trigger switch, which disconnects the working circuit. Figure 6 As shown, the bottom surface of the rolling space is a conical surface or a spherical surface, so no matter the trigger switch follows the vacuum cleaner from Figure 4 In the state shown, when tilted in any direction, the ball can be separated from the spring, causing the spring to disconnect the trigger switch, which in turn disconnects the working circuit.

[0042] Figure 7 The trigger switch of the structure shown has a lifting member 212, two terminals 213, and a spring 214. The spring 214 lifts the lifting member away from the two terminals. When the tilt sensing device is upright, the ball 205 presses the lifting member 212, overcomes the elastic force of the spring 214, and makes the lifting member 212 contact the two terminals 213, turning on the trigger switch 206, and the trigger switch 206 turns on the working circuit. When the tilt sensing device is tilted, the ball 205 leaves the lifting member 212, and the spring lifts the lifting member 212 away from the two terminals 213, disconnecting the trigger switch, and the trigger switch disconnects the working circuit.

[0043] Figure 4-6 and Figure 7 The tilt sensing device shown is used in Figure 8 , Fig.10 and Fig.12 In the circuit shown.

[0044] Another structure of the tilt sensing device is Fig. 9 , Fig.11 , Fig.13 The circuit shown expresses that: the tilt sensing device is a tilt angle sensor 210, an electric control switch 304 is connected to the working circuit 300, the electric control switch 304 and the tilt angle sensor 210 are both connected to the controller 305, and the tilt sensing device is configured as follows: when the tilt angle α of the vacuum cleaner is less than the set maximum tilt angle, the controller 305 controls the electric control switch 304 to connect the working circuit, and when the tilt angle α of the vacuum cleaner is greater than the set maximum tilt angle, the controller 305 controls the electric control switch 304 to disconnect the working circuit. Accordingly, when the vacuum cleaner is tilted, the tilt angle sensor 210 will detect the tilt angle and transmit it to the controller, and when the tilt angle of the vacuum cleaner is less than the set maximum tilt angle, the controller controls the electric control switch to connect the working circuit, and when the tilt angle of the vacuum cleaner is greater than the set maximum tilt angle, the controller controls the electric control switch to disconnect the working circuit.

[0045] Furthermore, the controller 305 includes a timing module; when the tilt angle α of the vacuum cleaner is greater than the set maximum tilt angle, the timing module will time the tilt. When the tilt duration is less than the set duration, the controller will control the electric switch to connect the working circuit. When the tilt duration is greater than the set duration, the controller will control the electric switch to disconnect the working circuit. This allows the vacuum cleaner to cope with bumps and other situations without stopping due to bumps and affecting vacuuming. It is best to set the duration to no more than 1 second, which takes into account the vacuum cleaner's ability to cope with bumps and other situations, and avoids the vacuum cleaner from not being able to stop working in time due to tipping.

[0046] The filter component 203 has a built-in float 209, which is located below the air inlet 201 and floats above to block the air inlet 201. This further prevents the accumulated water from being sucked into the head when the vacuum cleaner is tilted or tipped over. Moreover, when the vacuum cleaner tipped over, the float can quickly block the air inlet to prevent the accumulated water from being sucked into the head. Moreover, when too much water accumulates, the float floats to the highest position to block the air inlet.

[0047] Since the dust is isolated in the dust collection bucket by the filter component, it is difficult to reach the air suction port, while the accumulated water will penetrate the filter component and reach the air suction port. Therefore, it is possible to allow the vacuum cleaner to tilt or fall over when sucking dust, but it is prevented from tilting or falling over when sucking water. Fig.10 , Fig.11 As shown, the head is provided with a mode switch 306 for switching the vacuum cleaner to a vacuuming mode or a water suction mode.

[0048] When the mode switch 306 is switched to the vacuum mode, the tilt sensing device is configured to keep the working circuit always in the on state. Figure 4 The state shown is to make the spring 211 connect the trigger switch 206. As an example, Fig.10 As shown, the ball bearing can be controlled by electromagnetic force, that is, when the mode switch 306 is switched to the dust collection mode, an electromagnetic coil 215 is activated, and the electromagnetic force of the electromagnetic coil 215 keeps the ball bearing 205 in the vacuum state. Figure 4 For electronically controlled tilt sensing devices, Fig.11 The circuit shown is in accordance with Fig. 9 The circuit shown in the figure works in the same way, and the control working circuit is always in the on state.

[0049] When the mode switch 306 is switched to the water absorption mode, the tilt sensing device is configured to turn on the working circuit when the tilt angle α of the vacuum cleaner is less than the set maximum tilt angle, and to turn off the working circuit when the tilt angle α of the vacuum cleaner is greater than the set maximum tilt angle. Fig.10 The circuit shown is in accordance with Figure 8The circuit shown in the figure works without any special control on the ball bearing, and the ball bearing still rolls along with the tilt of the vacuum cleaner. That is, when the tilt angle of the vacuum cleaner is less than the set maximum tilt angle, the working circuit is turned on, and when the tilt angle of the vacuum cleaner is greater than the set maximum tilt angle, the working circuit is turned off. Fig.11 The circuit shown is in accordance with Fig. 9 The circuit shown works, and the controller turns on the working circuit when the tilt angle of the vacuum cleaner is less than the set maximum tilt angle according to the signal of the tilt sensing device, and turns off the working circuit when the tilt angle of the vacuum cleaner is greater than the set maximum tilt angle.

[0050] Similarly, in order to allow the vacuum cleaner to tilt or fall sharply when sucking dust, but to prevent the vacuum cleaner from tilting or falling sharply when sucking water, such as Fig.12 , Fig.13 As shown, a water detection element 307 is disposed in the dust collecting bucket, and the water detection element is connected to the head via a signal line 309, so that the water detection element can always be located at the bottom of the dust collecting bucket.

[0051] When the water detection element does not detect water, the tilt sensing device is configured to keep the working circuit always in the on state. For the mechanical structure of the tilt sensing device, the control ball is located at Figure 4 The state shown is to make the spring connect the trigger switch. As an example, Fig.12 As shown, the water detection element 307 provides a signal to the controller that no water is detected, and the controller starts the electromagnetic coil 215, and the electromagnetic force of the electromagnetic coil 215 keeps the ball Figure 4 In the position shown, the working circuit is always in the on state. For the tilt sensing device in the form of electronic control structure, Fig.13 The circuit shown is in accordance with Fig. 9 The circuit shown in the figure works in the same way, and the control working circuit is always in the on state.

[0052] When the water detection element detects water, the tilt sensing device is configured to connect the working circuit when the tilt angle α of the vacuum cleaner is less than the set maximum tilt angle, and disconnect the working circuit when the tilt angle α of the vacuum cleaner is greater than the set maximum tilt angle.

[0053] For the tilt sensing device with a mechanical structure, the controller does not start the electromagnetic coil and does not perform special control on the ball, but still allows the ball to roll as the vacuum cleaner tilts. That is, when the vacuum cleaner tilts less than the set maximum tilt angle, the working circuit is turned on, and when the vacuum cleaner tilts more than the set maximum tilt angle, the working circuit is turned off. Fig.12 The circuit shown is in accordance with Figure 8For the tilt sensing device in the form of an electronic control structure, the water detection element 307 provides a signal of detecting the presence of water to the controller 305. The controller turns on the working circuit when the tilt angle of the vacuum cleaner is less than the set maximum tilt angle and turns off the working circuit when the tilt angle of the vacuum cleaner is greater than the set maximum tilt angle based on the signal of detecting the presence of water and the signal of the tilt sensing device. Fig.13 The circuit shown is in accordance with Fig. 9 The circuit shown works just like this.

Claims

1. A vacuum cleaner, comprising a dust collecting bucket (100) and a head (200) which can be disassembled and assembled together, the dust collecting bucket (100) having a suction port (101), the head (200) having an air suction port (201) and an air exhaust port (202), the head (200) being provided with a filter member (203) which is located in the dust collecting bucket (100) and covers the air suction port (201), the filter member (203) isolating the suction port (101) from the air suction port (201), and the characteristics are: The head (200) is provided with a tilt sensing device (204) for sensing the tilt angle of the vacuum cleaner. The tilt sensing device (204) is configured to switch on the working circuit (300) when the tilt angle (α) of the vacuum cleaner is less than a set maximum tilt angle, and to switch off the working circuit (300) when the tilt angle (α) of the vacuum cleaner is greater than the set maximum tilt angle.

2. The vacuum cleaner according to claim 1, characterized in that: The tilt sensing device (204) comprises a ball (205) and a trigger switch (206), wherein the trigger switch (206) is connected to a working circuit (300); the tilt sensing device (204) is configured such that when the tilt angle (α) of the vacuum cleaner is less than a set maximum tilt angle, the ball (205) contacts the trigger switch (206) so that the trigger switch connects the working circuit (300); and when the tilt angle (α) of the vacuum cleaner is greater than the set maximum tilt angle, the ball (205) deviates from the trigger switch (206) so that the trigger switch disconnects the working circuit (300).

3. The vacuum cleaner according to claim 2, characterized in that: The tilt sensing device (204) comprises a limiting wall (207), the limiting wall (207) defines a rolling space (208), the trigger switch (206) is adjacent to the rolling space (208), and the ball (205) is located in the rolling space (208) and rolls with the tilt of the vacuum cleaner.

4. The vacuum cleaner according to claim 1, characterized in that: The tilt sensing device (204) is a tilt angle sensor (210), an electric control switch (304) is connected in the working circuit (300), the electric control switch (304) and the tilt angle sensor (210) are both connected to a controller (305), and the tilt sensing device is configured such that when the tilt angle (α) of the vacuum cleaner is less than a set maximum tilt angle, the controller (305) controls the electric control switch (304) to connect the working circuit, and when the tilt angle (α) of the vacuum cleaner is greater than the set maximum tilt angle, the controller (305) controls the electric control switch (304) to disconnect the working circuit.

5. The vacuum cleaner according to claim 4, characterized in that: The controller (305) includes a timing module; When the tilt angle (α) of the vacuum cleaner is greater than the set maximum tilt angle, the timing module will time the tilt. When the tilt duration is less than the set duration, the controller will control the electric switch to connect the working circuit. When the tilt duration is greater than the set duration, the controller will control the electric switch to disconnect the working circuit.

6. The vacuum cleaner according to any one of claims 1 to 5, characterized in that: The filter component (203) has a built-in float (209), which is located below the air suction port (201) and blocks the air suction port (201) by floating upward.

7. The vacuum cleaner according to any one of claims 1 to 5, characterized in that: The head (200) is provided with a mode switch (306) for switching the vacuum cleaner to a vacuuming mode or a water suction mode; When the mode switch is switched to the vacuuming mode, the tilt sensing device (204) is configured to keep the working circuit (300) always in an on state; When the mode switch is switched to the water suction mode, the tilt sensing device (204) is configured to connect the working circuit when the tilt angle (α) of the vacuum cleaner is less than the set maximum tilt angle, and disconnect the working circuit when the tilt angle (α) of the vacuum cleaner is greater than the set maximum tilt angle.

8. The vacuum cleaner according to any one of claims 1 to 5, characterized in that: A water detection element (307) is arranged in the dust collecting bucket; When the water detection element does not detect the presence of water, the tilt sensing device (204) is configured to keep the working circuit (300) always in an on state; When the water detection element detects the presence of water, the tilt sensing device (204) is configured to switch on the working circuit (300) when the tilt angle (α) of the vacuum cleaner is less than the set maximum tilt angle, and to switch off the working circuit (300) when the tilt angle (α) of the vacuum cleaner is greater than the set maximum tilt angle.

9. The vacuum cleaner according to claim 8, characterized in that: The water detection element (307) is connected to the head via a signal line (309).

10. The vacuum cleaner according to claim 1, characterized in that: The maximum tilt angle is set to 10-30°.

Images