CN213371795U - Hand-held cleaning device - Google Patents

Abstract

The present disclosure provides a handheld cleaning device comprising a host, an operating rod disposed at the top of the host, a base disposed at the bottom of the host, and a cleaning assembly disposed below the base; the host computer includes control panel and liquid reserve tank, the control panel with the liquid reserve tank sets up side by side and the branch is listed in both sides around the host computer. This openly has hand-held type cleaning device of above-mentioned structure can avoid appearing the control panel effectively when the liquid reserve tank takes place to leak and is wetted by the water logging, and then impaired situation.

Description

Hand-held cleaning device

Technical Field

The utility model belongs to the technical field of hand-held type cleaning device, specifically provide a hand-held type cleaning device.

Background

With the progress of science and technology and the improvement of the living standard of people, intelligent household appliances begin to enter more and more families. The mopping device with the water spraying function can spray water to the front to wet the front ground, and then mop the wet ground clean. The trouble that water needs to be replenished when the water content of the mop is less is avoided, and the situation that dust is easy to fly due to too dry ground is also avoided.

The existing floor mopping device generally comprises a main machine, an operating rod arranged at the top end of the main machine, a base arranged at the bottom end of the main machine and a mop cloth installed on the base, wherein a nozzle is arranged in front of the main machine, and a user controls the working posture of the floor mopping device and whether water is sprayed or not by holding the operating rod in the using process. Furthermore, the main machine is also provided with a water storage tank, a water pump which communicates the water storage tank with the nozzle and a water pump motor which is in driving connection with the water pump. The host is also provided with electric elements such as a control panel, a battery and the like. When the water storage tank leaks, the electrical element is easily wetted and corroded by water in the water storage tank, and is damaged.

SUMMERY OF THE UTILITY MODEL

The present disclosure is directed to solving the problem that a control panel in an existing cleaning apparatus is easily damaged by being wetted by water leaked from a liquid storage tank.

In order to achieve the above object, the present disclosure provides a handheld cleaning device, including a main machine, an operation rod disposed at the top of the main machine, a base disposed at the bottom of the main machine, and a cleaning assembly disposed below the base; the host computer includes control panel and liquid reserve tank, the control panel with the liquid reserve tank sets up side by side and the branch is listed in both sides around the host computer.

Optionally, the reservoir is disposed rearward of the axis of the lever.

Optionally, the main machine comprises a dust suction fan, an axis of the dust suction fan is eccentric to an axis of the operation rod, and the operation rod is arranged on the front side of the dust suction fan.

Optionally, a spraying port is arranged at the front side of the bottom of the main unit, the main unit further comprises a delivery pump, and the delivery pump is used for delivering the liquid in the liquid storage tank to the spraying port and then is sprayed to the ground in front of the main unit by the spraying port.

Optionally, the base is provided with a clamping device, the clamping device has a locking position and an unlocking position which can be switched, and the cleaning assembly moves relative to the base and abuts against the clamping device during installation, so that the clamping device automatically recovers and is kept at the locking position after being switched from the locking position to the unlocking position, so as to install the cleaning assembly to the base.

Optionally, the cleaning assembly comprises a support member provided with a recess; the base comprises a bottom shell, the front end of the bottom shell is provided with a limiting structure protruding towards the supporting member, and the limiting structure is matched with the groove; the retaining structure is insertable into the recess and is thereby capable of guiding the cleaning assembly into alignment with the base.

Optionally, the base is hinged to the main frame, and the base is configured to assume a dive posture in a state that the handheld cleaning device is lifted, so that the limit structure is located at the lowest end of the base, and therefore the limit structure is firstly contacted with the cleaning assembly.

Optionally, be equipped with in the host computer and be used for supplying the radiating heat dissipation chamber of motor on the host computer, the partial cavity wall in heat dissipation chamber by the lateral wall of liquid reserve tank constitutes, the heat dissipation chamber passes through vent on the host computer and external environment intercommunication.

Optionally, the liquid storage tank comprises a tank body and a cover body; the box body is provided with a liquid injection port, a liquid storage cavity and a liquid injection channel which communicates the liquid injection port with the liquid storage cavity, the liquid injection channel extends into the liquid storage cavity so as to form a cavity between the side wall of the liquid injection channel and the side wall of the liquid storage cavity, an inlet and an outlet are formed at one end of the cavity far away from the liquid injection port, and the inlet and the outlet can be sealed by the liquid level of liquid in the liquid storage cavity; the cover body is used for sealing the liquid storage cavity; and/or a water leakage port is arranged on the rear side of the bottom of the main machine.

Optionally, the host further comprises a battery disposed at a front side of the reservoir.

It will be appreciated by those skilled in the art that the foregoing handheld cleaning appliance of the present disclosure has at least the following benefits:

1. because the host computer and the operating rod are inclined backwards when the handheld cleaning equipment is used and leans against a wall body, the control panel and the liquid storage box are arranged side by side and are respectively arranged at the front side and the rear side of the host computer, so that liquid leaked from the liquid storage box cannot flow onto the control panel in front of the liquid storage box and can only flow to the bottom of the host computer along the rear part of the host computer under the action of self gravity. Therefore, the handheld cleaning device of the present disclosure can avoid the situation that the control board is wetted by water leaking out of the liquid storage tank and damaged.

2. Through setting up the liquid reserve tank in the rear side of the axis of action bars for the front surface of host computer can be close as far as possible with the front surface of action bars, thereby makes the preceding region that does not have the sheltering from user's field of vision of host computer, makes the user can observe the place ahead more clearly and treat the clear bottom surface. Meanwhile, in the process of installing the cleaning assembly on the base, a user can observe the relative position relation between the cleaning assembly and the base conveniently, and the user can install the cleaning assembly conveniently.

3. By arranging the dust collection fan at the rear side of the operating rod, the phenomenon that the front side of the main machine forms a raised area to influence the visual field of a user is avoided.

4. On the premise that the front surface of the main machine is not provided with an area obstructing the sight of the user, the spraying port is arranged on the front side of the bottom of the main machine, so that the user can clearly observe the spraying condition on the ground.

5. The rear side of the bottom of the main machine is provided with the water leakage port, so that liquid leaked from the liquid storage tank can flow to the outer side of the main machine through the water leakage port, and the liquid accumulated in the main machine is prevented from flowing to electrical elements in the main machine when the main machine shakes, and the electrical elements are prevented from being damaged.

Drawings

Preferred embodiments of the present disclosure are described below with reference to the accompanying drawings, in which:

FIG. 1 is an isometric view of a handheld cleaning appliance in a preferred embodiment of the present disclosure;

FIG. 2 is an exploded view of the extension rod portion in a preferred embodiment of the present disclosure;

FIG. 3a is an exploded view of the main frame (front view) in the preferred embodiment of the present disclosure;

FIG. 3b is an exploded view of the main frame (rear view) in the preferred embodiment of the present disclosure;

FIG. 4a is a first isometric view of a reservoir in a preferred embodiment of the present disclosure;

FIG. 4b is a second isometric view of a reservoir in a preferred embodiment of the present disclosure;

FIG. 4c is an isometric cutaway view of a reservoir in a preferred embodiment of the present disclosure;

FIG. 5a is a schematic view illustrating the assembly of the base and the cleaning assembly in the preferred embodiment of the present disclosure;

FIG. 5b is an exploded view of the base in the preferred embodiment of the present disclosure;

FIG. 6a is an isometric view of the cleaning assembly in a preferred embodiment of the present disclosure;

FIG. 6b is a lower isometric view of the cleaning assembly in a preferred embodiment of the present disclosure;

FIG. 6c is an exploded view of the cleaning assembly (without the floor member) in a preferred embodiment of the present disclosure;

FIG. 6d is an isometric cross-sectional view of the cleaning assembly (without the floor scrubbing member) in a preferred embodiment of the present disclosure;

FIG. 6e is a cross-sectional view of the cleaning assembly (without the floor scrubbing member) in a preferred embodiment of the present disclosure;

FIG. 6f is a lower isometric view of the cleaning assembly (without the floor scrubbing member) in a preferred embodiment of the present disclosure;

FIG. 7a is a schematic view of the alignment of the base and the cleaning assembly in the preferred embodiment of the present disclosure;

FIG. 7b is a schematic view of the base and the cleaning assembly initially inserted together in the preferred embodiment of the present disclosure;

figure 7c is a schematic view of the base and cleaning assembly assembled together in a preferred embodiment of the present disclosure.

List of reference numerals:

100. a host; 101. a spray port;

110. a body structure; 111. an inner support; 1111. a control panel mounting cavity; 1112. a dust absorption motor installation cavity; 1113. a water pump motor installation cavity; 112. a front housing; 1121. a vent; 113. a rear housing;

120. a liquid storage tank; 121. a box body; 1211. a liquid injection port; 1212. a liquid storage cavity; 1213. a liquid injection channel; 1214. an annular cavity; 12141. an inlet and an outlet; 1215. sinking a groove; 1216. accommodating grooves; 122. a cover body; 1221. a rotating shaft; 1222. a seal ring; 1223. an operating structure;

130. electrically connecting the fixing plate;

200. an operating lever;

210. an extension pole; 211. a card slot;

220. a handle; 221. a water spray button; 222. a dust collection button;

230. a sheath; 231. buckling; 232. a through hole;

240. an elastic member;

300. a base;

310. an upper bottom case;

320. a lower bottom shell; 321. a limiting structure;

330. a clamping device; 331. a first jaw; 3311. a pressing part; 332. a second jaw;

400. a cleaning assembly;

410. a support member; 411. a sinking structure; 4111. a groove; 4112. an air inlet; 412. a dust collection chamber; 413. a dust suction port; 414. a flow guide channel; 415. a bevel; 416. a longitudinal groove; 417. a U-shaped groove;

420. a floor-mopping member;

430. a filter screen;

440. a one-way valve; 441. a fixed part; 442. a movable portion;

500. a charging device;

600. an electrical lead; 610. a stop member; 620. and (6) redundant segments.

Detailed Description

It should be understood by those skilled in the art that the embodiments described below are only preferred embodiments of the present disclosure, and do not mean that the present disclosure can be implemented only by the preferred embodiments, which are merely for explaining the technical principles of the present disclosure and are not intended to limit the scope of the present disclosure. All other embodiments that can be derived by one of ordinary skill in the art from the preferred embodiments provided by the disclosure without undue experimentation will still fall within the scope of the disclosure.

It should be noted that in the description of the present disclosure, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present disclosure, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present disclosure can be understood by those skilled in the art as appropriate.

As shown in fig. 1, in a preferred embodiment of the present disclosure, the handheld cleaning apparatus includes a main body 100, a lever 200, a base 300, and a cleaning assembly 400. Wherein, the operation rod 200 is arranged at the top end of the main machine 100 (the upper end of the main machine 100 in fig. 1) and is used for being held by an operator, so that the operator can control the working posture and the working state of the handheld cleaning device by holding the operation rod 200. The base 300 is disposed at the bottom end of the main body 100 (the lower end of the main body 100 in fig. 1). The cleaning assembly 400 is mounted to the base 300 and the cleaning assembly 400 contacts the floor during operation of the hand-held cleaning appliance for cleaning the floor.

Specifically, the lever 200 is plugged with the host 100. More specifically, a socket (not shown) is disposed at the top end of the host 100, and a card slot (not shown) is disposed on the sidewall of the socket; the bottom end of the operation lever 200 is provided with a catch (not shown in the drawings), and the bottom end of the operation lever 200 is inserted into the socket, and thus the catch is inserted into the card slot, so that the operation lever 200 is fixed with the main body 100.

As shown in fig. 1, the top end of the base 300 is hinged to the bottom end of the main unit 100 so that the base 300 can rotate and swing with respect to the main unit 100, so that the base 300 can rotate in the left-right direction and the front-rear direction with respect to the main unit 100. Preferably, the base 300 can take a dive posture in a state where the hand-held cleaner is lifted, that is, a front end of the base 300 is lower than a rear end of the base 300. Since the technical means for realizing the pivotal connection are conventional in the art, they will not be described in detail herein. Further, the cleaning assembly 400 is detachably mounted to the base 300 in a vertical direction (up-down direction shown in the drawing).

As shown in fig. 1, in a preferred embodiment of the present disclosure, the handheld cleaning appliance is further provided with a charging device 500, and the charging device 500 is used for charging a battery of the handheld cleaning appliance.

As shown in fig. 1 and 2, the operating rod 200 includes an extension rod 210, a handle 220, a sheath 230, and an elastic member 240. Wherein the extension pole 210 is inserted into the handle 220. Illustratively, the bottom end of the handle 220 is provided with a socket (not shown in the figure), and the side wall of the socket is provided with a clamping groove (not shown in the figure); the top end of the lever 200 is provided with a catch (not shown in the drawings), and the top end of the lever 200 is inserted into the socket, and thus the catch is inserted into the catch groove, so that the lever 200 and the handle 220 are fixed together.

As shown in fig. 2, a sheath 230 is installed at each end of the extension pole 210. Specifically, a locking groove 211 is formed on a side wall of the extension rod 210, and a locking buckle 231 is formed on an outer circumferential wall of the sheath 230. In the installed state, part of the structure of the sheath 230 is inserted into the extension pole 210, and thus the catch 231 is inserted into the catch groove 211, thereby fixing the sheath 230 to the extension pole 210. Further, it is also possible for those skilled in the art to set the through-hole type catching groove 211 shown in fig. 2 as a sink-type catching groove, that is, set the catching groove 211 as a sink formed on the inner circumferential wall of the extension pole 210, as needed.

As shown in fig. 1, a spray button 221 is provided on the front side of the handle 220, and when the spray button 221 is pressed, the hand-held cleaning device can perform a spraying operation to wet the floor. A dust button 222 is provided at the rear side of the handle 220, and when the dust button 222 is pressed, the hand-held cleaning device can perform a dust suction operation. In addition, the person skilled in the art may also dispose the water spray button 221 and the dust suction button 222 at other arbitrary positions of the handle 220 as needed, for example, both the water spray button 221 and the dust suction button 222 are disposed at the front side or the rear side of the handle 220. In addition, the skilled person can replace the water spray button 221 and the dust collection button 222 with any other feasible operation keys, such as a touch operation key, as required.

With continued reference to fig. 2, the handheld cleaning apparatus further includes an electrical lead 600 disposed in the extension pole 210, the electrical lead 600 including a stop member 610 and a redundant segment 620. Wherein, two end sides of the redundant segment 620 are respectively provided with a limiting member 610. The upper end of electrical lead 600 in fig. 2 is fixedly attached to handle 220 after passing through hole 232 in upper sheath 230, and the lower end of electrical lead 600 in fig. 2 is fixedly attached to host 100 after passing through hole 232 in lower sheath 230.

With continued reference to fig. 2, the two ends of the elastic member 240 are respectively connected to the two position-limiting members 610, and the elastic member 240 is used for providing a force to the two position-limiting members 610 to approach each other. Illustratively, the elastic member 240 may be a rubber band or a spring. Further, in order to prevent the elastic member 240 from being exposed from the extension rod 210, the size of the elastic member 240 is larger than that of the through hole 232.

The following will specifically describe the detachment and connection between the extension pole 210 and the handle 220 and the main unit 100 with reference to fig. 1 and 2.

As shown in fig. 1, in an assembled state, the top end of the extension pole 210 is inserted into the handle 220, and the bottom end of the extension pole 210 is inserted into the main unit 100. One end of electrical lead 600 is fixedly connected to host 100 and the other end of electrical lead 600 is fixedly connected to handle 220, and electrical lead 600 is capable of pulling handle 220 and host 100 together under the force of resilient member 240 to provide a force that approaches each other.

After the extension pole 210 is pulled out from the main body 100, the elastic member 240 and the redundant segment 620 of the electrical lead 600 are elongated, and the extension pole 210 and the main body 100 are flexibly connected together through the electrical lead 600. Also, when the extension pole 210 is plugged with the main unit 100, the elastic force generated by the elastic member 240 assists the user to bring the extension pole 210 and the main unit 100 close to each other and plug them together. Similarly, when the handle 220 is pulled out of the extension pole 210, the resilient member 240 and the redundant segment 620 of electrical leads 600 are stretched and the extension pole 210 and the handle 220 are flexibly connected together via the electrical leads 600. Also, when the extension pole 210 and the handle 220 are plugged together, the elastic force generated by the elastic member 240 assists the user to bring the extension pole 210 and the handle 220 close to each other and plug together.

It can be seen that the elastic member 240 can function as a wire take-up, i.e., can bring both ends of the electrical lead 600 close to each other. Therefore, the elastic member 240 may be replaced with any other possible wire rewinding device, such as an automatic wire rewinding device having a coil spring, on the premise that both ends of the electrical lead 600 can be brought close to each other and the wire rewinding function can be performed.

As shown in fig. 3a, the front side of the bottom of the main body 100 is provided with a spray opening 101, and when the spray button 221 on the handle 220 is pressed, the spray opening 101 sprays liquid to the front side of the main body 100.

As shown in fig. 3a and 3b, the main body 100 includes a main body structure 110, a liquid storage tank 120 mounted on the main body structure 110, an electric connection fixing plate 130, a battery (not shown), a dust suction motor (not shown), a dust suction fan (not shown), a water pump motor (not shown), a water pump (not shown) as a transfer pump, and a control board (not shown). Wherein, the electric connection fixing plate 130 is provided with a power receiving terminal (not marked in the figure) electrically connected with the battery; the electrical connection pin assembly 140 is electrically connected with the battery; the battery is respectively electrically connected with the dust collection motor and the water pump motor, the working state of the water pump motor is controlled by the water spraying button 221, and the working state of the dust collection fan is controlled by the dust collection button 222; the dust collection motor is in driving connection with the dust collection fan; the water pump motor is in driving connection with the water pump; the water pump is communicated with the liquid storage tank 120 through a water pipe, and the water pump is also communicated with the spraying port 101 through a water pipe.

With continued reference to fig. 3a and 3b, the body structure 110 includes an inner support 111, a front shell 112, and a rear shell 113 fixedly coupled together. Illustratively, the front shell 112 is provided with a threaded hole column, the inner bracket 111 is provided with a through hole, the rear shell 113 is provided with a through hole, and a screw is screwed with the threaded hole column on the front shell 112 after passing through the through holes on the rear shell 113 and the inner bracket 111, so as to fixedly connect the inner bracket 111, the front shell 112 and the rear shell 113 together.

With continued reference to fig. 3a and 3b, the front side of the internal bracket 111 is provided with a control board mounting cavity 1111, and the control board mounting cavity 1111 is used for mounting a control board and a battery. A suction fan installation cavity 1112 is formed at the bottom of the inner bracket 111, and the suction fan installation cavity 1112 is used for installing a suction motor and a suction fan. The rear side of the inner bracket 111 is provided with a water pump motor mounting cavity 1113, and the water pump motor mounting cavity 1113 is used for mounting at least one part of a water pump motor and a water pump.

From the structure shown in fig. 1, 3a and 3b, it can be seen or unambiguously inferred by those skilled in the art that the axis of the suction fan is arranged eccentrically to the axis of the operating lever 200 (in particular, the extension lever 210), and that the operating lever 200 is arranged at the front side of the suction fan and the reservoir tank 120 is located at the rear side of the axis of the operating lever 200. So that the front surface of the main body 100 is as close as possible to the front surface of the operation lever 200 and the front surface of the main body 100 does not form a projection which affects the user's sight, thereby allowing the user to obtain a better view when looking forward from the place of the handle 220. Meanwhile, the gravity center of the whole host 100 is further back, the gravity applied to the user by the handle 220 is increased, and the holding hand feeling of the user is optimized.

With continued reference to fig. 3a and 3b, the front housing 112 is provided with a vent 1121 and a shower opening 101. The ventilation hole 1121 is used to discharge the air sucked by the dust suction fan to the outside again.

Further, although not shown, it will be understood by those skilled in the art that in the assembled state, the front housing 112 and the rear housing 113 can enclose a heat dissipation chamber in which the control board, the battery, the dust suction motor, the dust suction fan, the water pump motor and the water pump are located, and the heat dissipation chamber is in communication with the ventilation opening 1121. Furthermore, in order to increase the heat dissipation speed of the dust collection motor, first heat dissipation holes are formed in the circumferential wall and/or the top wall and/or the bottom wall of the dust collection motor, and the first heat dissipation holes are communicated with the heat dissipation cavity. Similarly, in order to increase the heat dissipation speed of the water pump motor, the circumferential wall and/or the top wall and/or the bottom wall of the water pump motor are/is provided with second heat dissipation holes, so that heat in the water pump motor can be quickly transferred to the outer side (namely, a heat dissipation cavity) of the water pump motor through the second heat dissipation holes, namely, the second heat dissipation holes are communicated with the heat dissipation cavity.

As shown in fig. 3a and 3b, the reservoir tank 120 is fixed between the inner bracket 111 and the rear case 113, and thus the control board mounting chamber 1111 is located at the front side of the reservoir tank 120. It will be appreciated by those skilled in the art that since the main unit 100 is tilted rearward when the hand-held cleaning device is in use and when resting on a wall, in the event of a leak in the reservoir 120, the fluid flowing from the reservoir can only flow into the control panel mounting cavity 1111 to wet the control panel and batteries, and can only flow under its own weight along the rear side of the inner housing 111 and the rear housing 113 to the bottom of the main unit 100. Thus, the reservoir 120 is arranged in a manner that effectively avoids the occurrence of liquid wetting of the control plate and the battery that leaks out of the reservoir 120.

Although not shown in the drawings, it is preferable that a rear side of the bottom of the main body 100 (particularly, the bottom of the rear case 130) is provided with a drain hole so that liquid leaked into the main body 100 can flow to an outside of the main body 100 through the drain hole.

As shown in fig. 4a to 4c, the reservoir 120 includes a pivotally connected case 121 and cover 122. The case 121 is provided with a liquid injection port 1211, a liquid storage chamber 1212, and a liquid injection channel 1213 connecting the liquid injection port 1211 and the liquid storage chamber 1212. The liquid injection channel 1213 extends into the liquid storage cavity 1212, so that an annular cavity 1214 is formed between the side wall of the liquid injection channel 1213 and the side wall of the liquid storage cavity 1212, the annular cavity 1214 is formed with an inlet/outlet 12141 at an end far from the liquid injection port 1211, and the inlet/outlet 12141 can be closed by the liquid level of the liquid in the liquid storage cavity 1212. It will be understood by those skilled in the art that when the liquid inlet 1211 of the liquid tank 120 is facing upward, the liquid level in the liquid chamber 1212 submerges the inlet/outlet 12141, thereby closing the annular cavity 1214 and allowing a portion of air to be present in the annular cavity 1214.

Furthermore, the annular cavity 1214 may be configured as any other feasible cavity, such as a C-shaped or U-shaped cavity in cross-section, as desired by one skilled in the art.

Preferably, the volume of the annular cavity 1214 is greater than the volume of the filling channel 1213, so that during filling of the reservoir 120 (during which the reservoir 120 is vertical or close to vertical and the filling opening 1211 of the reservoir 120 is facing upwards), liquid overflowing from the reservoir 1212 into the filling channel 1213 can flow entirely into the annular cavity 1214 when the reservoir 120 is tilted. At the same time, the cap 122 can also be closed by squeezing the liquid in the injection channel 1213 during closure of the cap 122, such that the liquid compresses the air in the annular cavity 1214 and thus enters the annular cavity 1214.

As can be seen from fig. 4b and 4c, the diameter of the liquid injection channel 1213 gradually increases from the inside to the outside to facilitate the user to fill the liquid storage tank 120 with water. Preferably, the injection channel 1213 is of a tapered configuration, with the taper of the front portion of the injection channel 1213 being less than the taper of the rear portion, so that the bottom end of the injection channel 1213 faces the front side of the injection channel 1213, thereby allowing the rear portion of the annular cavity 1214 to have more space and to accommodate more liquid when the tank 120 is tilted backwards.

With continued reference to fig. 4 a-4 c, the cover 122 is configured to enclose the reservoir 1212. Specifically, the cap 122, after being closed, is capable of closing the reservoir 1212 by closing the fluid injection channel 1213. Alternatively, one skilled in the art may close the liquid storage chamber 1212 by closing the liquid injection port 1211 after the lid 122 is closed, if necessary.

As shown in fig. 4a to 4c, the case 121 is provided with a sink 1215, and the cover 122 is provided with a rotation shaft 1221. The rotation shaft 1221 is inserted into the sinking groove 1215 and can rotate in the sinking groove 1215. In the mounted state, the rear case 113 covers the sinking groove 1215, thereby preventing the rotation shaft 1221 from being detached from the sinking groove 1215, so that the cover 122 and the case 121 are pivotally coupled together.

As shown in fig. 4a, the bottom of the case 121 is provided with a recessed receiving groove 1216, and the receiving groove 1216 can receive a water pump motor. In other words, at least a portion of the water pump motor is mounted in the receiving groove 1216, so that the sidewall of the receiving groove 1216 abuts against the circumferential surface of the water pump motor, thereby allowing heat generated by the water pump motor to be transferred to the tank 121 and absorbed by the liquid in the tank 121, thereby achieving the effect of cooling the water pump motor.

In addition, in the case that the liquid in the box 121 can absorb heat of the water pump motor, the person skilled in the art can also set the receiving groove 1216 at any other feasible position on the box 121, such as the left side, the right side or the middle position of the box 121, as required. Further, the receiving groove 1216 may be provided in any feasible shape, such as a U-shaped, circular, semi-circular, or C-shaped cavity, as desired by those skilled in the art.

Based on the above description of "the water pump motor is located in the heat dissipation chamber" and "the side wall of the holding groove 1216 abuts against the circumferential surface of the water pump motor", it can be seen that the side wall of the holding groove 1216 constitutes a part of the chamber wall of the heat dissipation chamber, in other words, a part of the chamber wall of the heat dissipation chamber is constituted by the side wall of the case body 121.

As shown in fig. 4a to 4c, the cover 122 is provided with a sealing ring 1222, and the cover 122 can be inserted into the liquid injection channel 1213, so that the sealing ring 1222 abuts against the side wall of the liquid injection channel 1213 to close the liquid storage cavity 1212. It will be appreciated by those skilled in the art that the sealing ring 1222 can be compressively deformed so that the sealing ring 1222 can first abut the sidewall of the fill channel 1212 and then slide a distance over the sidewall of the fill channel 1222 (during which the sealing ring 1222 is gradually shrunk radially inward) to close the cover 122 in place.

Further, in order to ensure the reliability of the cap 122 for sealing the filling channel 1212, a plurality of sealing rings 1222 are disposed on the cap 122. Preferably, the plurality of sealing rings 1222 are sequentially reduced in diameter along a direction of insertion into the injection channel 1212. Further, preferably, two sealing rings 1222 spaced apart from each other are disposed on the cover 122.

With reference to fig. 4a to 4c, in order to facilitate the operation of the user, an operation structure 1223 is further disposed on the cover 122. The user can rotate the opened cap 122 toward the filling channel 1212 by pressing the operating structure 1223, and thus close the filling channel 1212. By pulling the operation mechanism 1223, the user can rotate the cover 122 from the closed position to the open position.

As shown in fig. 3a and 3b, the electrical connection fixing plate 130 is fixedly coupled into the rear case 113. Alternatively, the electrical connection fixing plate 130 and the rear case 113 may be fixedly connected together by any feasible means, such as clamping, bonding, riveting, screwing, ultrasonic welding, and the like.

As shown in fig. 5a and 5b, the base 300 includes an upper base case 310, a lower base case 320, and a snap means 300. The upper bottom case 310 and the lower bottom case 320 are fixedly connected together by any feasible means such as clamping, screw connection, ultrasonic welding, etc. The engaging device 300 is disposed on the lower case 320, or one skilled in the art can dispose the engaging device 300 on the upper case 310, or between the upper case 310 and the lower case 320, as required.

With continued reference to fig. 5a and 5b, the exposed portions of the upper surfaces of the upper base 310 and the lower base 320 are provided as arc-shaped surfaces, especially the front portions of the upper base 310 and the lower base 320. Further, the front end of the lower bottom housing 320 is provided with a limiting structure 321 protruding downward, and the limiting structure 321 can guide the liquid on the upper surfaces of the upper bottom housing 310 and the lower bottom housing 320 to the groove 4111 (as shown in fig. 6 c) in the cleaning assembly 400.

As can be seen from fig. 5a and 5b, two limiting structures 321 are disposed on the left and right sides of the lower case 320. Preferably, the limiting structure 321 can abut against the sidewall of the groove 4111 (shown in fig. 6 c), so that the limiting structure 321 can limit the movement of the cleaning assembly 400 relative to the lower case 320. Preferably, the limiting structure 321 is a plate-shaped structure extending along the left-right direction of the base, and the left and right sides of the limiting structure 321 are inclined surfaces capable of guiding the limiting structure 321 to be inserted into the groove 4111 (as shown in fig. 6 c).

As shown in fig. 5b, the engaging means 330 includes a first jaw 331 disposed on the left side of the base 300 and a second jaw 332 disposed on the right side of the base 300. The first and second claws 331 and 332 can fix the cleaning assembly 400 to the base 300 by clasping.

Specifically, the first jaw 331 is pivotally connected to the lower base 320, and a first returning member for rotating and holding the first jaw 331 from the unlocking position to the locking position is provided between the first jaw 331 and the lower base 320. The second jaw 332 is pivotally connected to the lower base housing 320, and a second returning member for rotating and holding the second jaw 332 from the unlocking position to the locking position is provided between the second jaw 332 and the lower base housing 320. Wherein the first and second return members are both torsion springs. Alternatively, the first return member and/or the second return member may be any other elastic member such as a tension spring, a compression spring, etc. as required by those skilled in the art.

As can be seen in fig. 5b, the first and second pawls 331, 332 are rotatable to an unlocked position when rotated away from the cleaning assembly 400; the first and second pawls 331 and 332 are rotatable to a locking position when rotated in a direction approaching the cleaning assembly 400.

As shown in fig. 5a, in the locking position, the first and second claws 331 and 332 respectively catch a circumferential edge of the cleaning assembly 400, in particular, a circumferential edge of a support member 410 (shown in fig. 6 a) of the cleaning assembly 400.

As shown in fig. 5b, in order to facilitate the user to detach the cleaning assembly 400 from the base 300, the first claws 331 are provided with pressing portions 3311, and the pressing portions 311 are exposed on the upper surface of the base 300. When the pressing part 3311 is pressed, the first jaw 331 moves from the locking position to the unlocking position, so that the left end of the cleaning assembly 400 falls down by its own weight and then the right end of the cleaning assembly 400 is separated from the second jaw 332, so that the cleaning assembly 400 is separated from the base 300.

Although not shown in the drawings, it can be understood by those skilled in the art that a mounting cavity may be further provided on the base 300 (particularly, the lower chassis 320) and can be made to receive a portion of the top of the cleaning assembly 400.

As shown in fig. 6a to 6c, the cleaning assembly 400 includes a support member 410, a floor-mopping member 420, a filter screen 430, and a one-way valve 440. Wherein the mopping member 420 is disposed at the bottom end of the support member 410, the filter screen 430 is disposed at the top end of the support member 410, and the check valve 440 is disposed inside the support member 410.

As shown in fig. 6c to 6f, the front end of the support member 410 is provided with a sinking structure 411, and a groove 4111 with an upward opening is formed on the sinking structure 411. The groove 4111 can accommodate the limiting structure 321 on the base 300, and thus can receive the liquid guided by the limiting structure 321 from the base 300. Preferably, the groove 4111 is a strip-shaped groove extending in the left-right direction of the support member 410. Alternatively, both left and right ends in the left-right direction of the groove 4111 are provided with inclined surfaces for guiding the insertion of the stopper 321 into the groove 4111. Further, a plurality of air inlets 4112 are disposed on the sinking structure 411, and each air inlet 4112 penetrates through the sinking structure 411 along the front-back direction of the sinking structure 411.

With continued reference to fig. 6 c-6 f, the supporting member 410 is further provided with a dust collecting chamber 412, a dust suction port 413 and an air outlet (not labeled). Wherein the dust suction port 413 is formed at the front end of the dust collection chamber 412, and the dust suction port 413 is located at the rear side of the sinking structure 411, in other words, the dust suction port 413 is located between the dust collection chamber 412 and the groove 4111. The air outlet is formed at the top end of the dust collecting chamber 412 and covered by the filter screen 430. In the installed state, the dust collecting chamber 412 is communicated with the air inlet of the dust suction fan through the air outlet.

With continued reference to fig. 6c to 6f, a guide passage 414 communicating with the dust suction port 413 is formed between the front sidewall of the dust collection chamber 412 and the rear sidewall of the groove 4111, and the guide passage 414 is used for guiding air into the dust suction port 413. As can be seen, the suction port 413 is aligned with one of the plurality of air inlet ports 4112, and both ends of the flow guide passage 414 are open.

It can be understood by those skilled in the art that, compared to the situation that the external air enters the dust suction port 413 from any direction, the external air can only enter the dust suction port 413 through the plurality of air inlets 4112 and the two open ends of the flow guide passage 414, which increases the flow rate of the air, and the fast flowing air can more easily carry the foreign matters (dust) to the dust suction port 413 and then enter the dust collection cavity 412.

With continued reference to fig. 6c to 6f, the supporting member 410 is provided with a slope 415 aligned with the dust suction opening 413, and the slope 415 matches with the movable portion 442 of the check valve 440, so as to close the dust suction opening 413. Preferably, the ramp 415 is configured to be U-shaped as shown in fig. 6 c. Of course, the bevel 415 can be provided in any other feasible shape, such as an O-shape, a C-shape, an arc shape, etc., as desired by one skilled in the art.

As shown in fig. 6a to 6e, the filter screen 430 is disposed at the top end of the support member 410, and is fixedly coupled with the support member 410. The fixing connection mode can be bonding, ultrasonic welding, screw connection and the like.

As shown in fig. 6c to 6e, the check valve 440 is bent to form a fixed portion 441 and a movable portion 442. The fixing portion 441 is fixedly coupled with the filter mesh 430, and thus, fixedly coupled with the support member 410. The movable portion 442 is movable to a first position and a second position. The movable portion 442 fits together with the inclined surface 415 in the support member 410 in the first position, and thus closes the dust suction port 413; the movable portion 442 is separated from the inclined surface 415 in the support member 410 in the second position, and thus opens the dust suction port 413.

Preferably, the check valve 440 is a V-shaped sheet structure made of plastic, metal foil, or any other material having elasticity. So that the movable portion 442 can be rotated from the second position to and maintained at the first position by the resilient force of the check valve 440 itself and thus close the suction opening 413. It is further preferable that the resilient force is smaller than the negative pressure applied to the movable portion 442 when the dust suction fan is operated, so that the pressure difference between the inside and the outside of the movable portion 442 can open the movable portion 442 and thus the dust suction port 413 when the dust suction fan is operated.

As can be seen from fig. 6c to 6e, the area of the movable portion 442 is larger than that of the fixing portion 441, so that the movable portion 442 can cover not only the fixing portion 441 but also a partial area of the filter 430 when the movable portion 442 is attached to the filter 430.

It will be appreciated by those skilled in the art that during operation of the suction fan, the negative pressure generated by the suction fan drives air from the suction opening 413 into the dirt collection chamber 412 and then through the filter screen 430 to the suction fan. In this process, when the air flowing to the filter 430 flows to the movable portion 442, a force is applied to the lower surface of the movable portion 442, so as to push the movable portion 442 to rotate to a position where the movable portion 442 is attached to the lower surface of the filter 430. In other words, during the operation of the dust suction fan, the air pressure difference is generated between the upper and lower sides of the movable portion 442 due to the flow of air, and the air pressure difference drives the movable portion 442 to rotate to a position where the movable portion 442 is attached to the lower surface of the filter screen 430.

It will be understood by those skilled in the art that the movable portion 442 provides an impact force to the filter screen 430 at a moment of contact with the filter screen 430, and the impact force may vibrate the filter screen 430 to shake off a portion of foreign objects (e.g., dust, hair, etc.) attached to the filter screen 430.

Further, those skilled in the art can understand that, with the use of the handheld vacuum cleaner, more and more dust can be attached to the filter screen 430, which causes the partial filter holes on the filter screen 430 to be blocked, which causes the filter screen 430 to obstruct the flow of air, thereby reducing the flow rate of air, further reducing the pressure difference between the upper side and the lower side of the movable portion 442, which causes the movable portion 442 to be unable to be attached to the filter screen 430 under the action of the pressure difference, and forming a gap capable of accommodating the foreign matter between the movable portion 442 and the filter screen 430.

That is, the movable portion 442 of the check valve 440 can be attached to the filter 430 when the filter 430 is relatively clean, and cannot be attached to the filter 430 when the filter 430 is relatively dirty.

As can be seen from fig. 6c to 6e, the included angle between the movable portion 442 and the fixed portion 441 in the first position is smaller than 90 °, and preferably smaller than 60 °, so that a portion of foreign matters (such as dust) can be carried above the movable portion 442 when the movable portion 442 is in any position, and thus when the dust suction fan stops working, the gravity of the portion of foreign matters can provide a vertically downward pressure to the movable portion 442, so that the movable portion 442 is forced to rotate from the second position to the first position, and the dust suction port 413 is closed.

As shown in fig. 6f, the outer side of the bottom wall of the support member 410 is provided with a plurality of longitudinal grooves 416, a U-shaped groove 417 and the aforementioned flow guide passage 416. Wherein the longitudinal groove 416 has a length direction parallel to the front-rear direction of the support member 410 during operation, the front end of the longitudinal groove 416 is a closed end, the rear end of the longitudinal groove 416 is an open end, and the plurality of longitudinal grooves 416 are equally spaced apart along the left-right direction of the support member 410 during operation. In addition, the plurality of longitudinal grooves 416 may be distributed at unequal intervals as desired by those skilled in the art. The U-shaped groove 417 is disposed around the suction opening 413, or the U-shaped groove 417 may be disposed as any other feasible groove, such as a C-shaped groove, an arc-shaped groove, etc., according to the actual needs of those skilled in the art.

As shown in fig. 6a and 6b, the floor member 420 covers all of the longitudinal grooves 416 and the U-shaped grooves, and the front end of the floor member 420 extends into the flow guide passage 414 and the front end of the floor member 420 extends to the rear side of the support member 410.

As can be understood by those skilled in the art, by providing a plurality of grooves (including the longitudinal groove 416 and the U-shaped groove 417) on the bottom wall of the supporting member 410, the pressure on the part of the mopping member 420 corresponding to the grooves is smaller, so that more moisture can be absorbed, and the situation that the mopping member 420 cannot completely absorb the moisture when the moisture on the ground is more can be avoided. Meanwhile, when the part of the mopping member 420 not corresponding to the groove lacks less moisture, the part corresponding to the groove can slowly release the part, so that the moisture endurance on the mopping member 420 is longer, the operation of pressing the water spraying button 221 for many times by a user is avoided, and the use experience of the user is improved.

It can also be understood by those skilled in the art that when there is a tiny protrusion on the ground, the protrusion can be wrapped by the portion of the mopping member 420 corresponding to the groove, so that the mopping member 420 can clean the side and the root of the protrusion, thereby ensuring the cleanness of the ground.

It can also be understood by those skilled in the art that the front end of the mopping member 420 is extended into the flow guiding channel 414, so that the front end of the mopping member 420 can be sucked by the negative pressure generated by the dust suction fan when the dust suction fan is operated, and the front end of the mopping member 420 is tilted upwards, thereby preventing the front end of the mopping member 420 from being damaged due to the protrusion on the floor hooking the front end of the mopping member 420.

It will also be appreciated by those skilled in the art that any feasible member may be used, such as a sponge, cotton cloth, cloth strip, etc.

As can be seen from the foregoing description, the cleaning assembly 400 is detachable from the base 300, and when the cleaning apparatus is lifted in the vertical direction, the base 300 can assume a dive posture (as shown in fig. 7a and 7 b), so that the bottom chassis (310 and 320) also assumes a dive posture, so that the limiting structure 321 can be located at the lowest end of the base 300.

As shown in fig. 7a to 7c, in the process of mounting the cleaning assembly 400 and the chassis 300 together: the cleaning assembly 400 is first placed on the floor (as shown in figure 7 a), the cleaning device is then lifted and the base 300 is aligned with the cleaning assembly 400, and the base 300 is then gradually moved towards the cleaning assembly 400 (as shown by the arrows in figure 7). As the base 300 approaches the cleaning assembly 400, the limiting structure 321 is first brought into contact with the cleaning assembly 400 (as shown in fig. 7 b) and inserted into the groove 4111 on the supporting member 410 as shown by the chain line in fig. 7b, so as to guide the installation of the base 300 and the cleaning assembly 400. Subsequently, the support member 410 of the cleaning assembly 400 abuts against the first and second jaws 331 and 332, and then the first and second jaws 331 and 332 are rotated from the locked position to the unlocked position, and then the first and second jaws 331 and 332 are automatically restored and maintained in the locked position by the respective restoring members, and thus the cleaning assembly 400 is locked to the base 300 (as shown in fig. 7 c).

Of course, the user may also mount and secure the cleaning assembly 400 to the base by holding the cleaning assembly 400 such that the cleaning assembly 400 is actively moved in a direction adjacent to the base 300.

So far, the technical solutions of the present disclosure have been described in connection with the foregoing embodiments, but it is easily understood by those skilled in the art that the scope of the present disclosure is not limited to only these specific embodiments. The technical solutions in the above embodiments can be split and combined, and equivalent changes or substitutions can be made on related technical features by those skilled in the art without departing from the technical principles of the present disclosure, and any changes, equivalents, improvements, and the like made within the technical concept and/or technical principles of the present disclosure will fall within the protection scope of the present disclosure.

Claims (10)

1. A handheld cleaning device comprises a main machine, an operating rod arranged at the top of the main machine, a base arranged at the bottom of the main machine and a cleaning assembly arranged below the base;

the liquid storage tank is characterized in that the host comprises a control board and a liquid storage tank, wherein the control board and the liquid storage tank are arranged side by side and are respectively arranged on the front side and the rear side of the host.

2. The hand-held cleaning device according to claim 1, wherein the reservoir is disposed rearward of the axis of the lever.

3. The handheld cleaning apparatus according to claim 2, wherein the main body includes a dust suction fan having an axis that is disposed eccentrically from an axis of the operation lever, and the operation lever is disposed at a front side of the dust suction fan.

4. The handheld cleaning device of claim 3, wherein a spray opening is formed in a front position of the bottom of the main unit, the main unit further comprises a delivery pump, and the delivery pump is used for delivering the liquid in the liquid storage tank to the spray opening and then spraying the liquid onto the ground in front of the main unit through the spray opening.

5. The hand-held cleaning device of claim 3, wherein the base is provided with a latch device, the latch device has a locking position and an unlocking position which can be switched, and the cleaning assembly moves relative to the base and abuts against the latch device when being mounted, so that the latch device automatically restores and keeps at the locking position after being switched from the locking position to the unlocking position to mount the cleaning assembly to the base.

6. The hand-held cleaning apparatus according to claim 5, wherein the cleaning assembly comprises a support member having a recess disposed therein;

the base comprises a bottom shell, the front end of the bottom shell is provided with a limiting structure protruding towards the supporting member, and the limiting structure is matched with the groove;

the retaining structure is insertable into the recess and is thereby capable of guiding the cleaning assembly into alignment with the base.

7. The hand-held cleaning device of claim 6, wherein the base is hingedly connected to the main body, the base being configured to assume a pronated position when the hand-held cleaning device is raised such that the retention structure is at a lowermost end of the base and thus the retention structure is first in contact with the cleaning assembly.

8. The hand-held cleaning device according to any one of claims 1 to 7, wherein a heat dissipation chamber is arranged in the main unit for dissipating heat of a motor on the main unit, a partial chamber wall of the heat dissipation chamber is formed by a side wall of the liquid storage tank, and the heat dissipation chamber is communicated with the external environment through a vent on the main unit.

9. The hand-held cleaning device according to any one of claims 1 to 7, wherein the reservoir comprises a tank body and a cover body;

the box body is provided with a liquid injection port, a liquid storage cavity and a liquid injection channel which communicates the liquid injection port with the liquid storage cavity, the liquid injection channel extends into the liquid storage cavity so as to form a cavity between the side wall of the liquid injection channel and the side wall of the liquid storage cavity, an inlet and an outlet are formed at one end of the cavity far away from the liquid injection port, and the inlet and the outlet can be sealed by the liquid level of liquid in the liquid storage cavity;

the cover body is used for sealing the liquid storage cavity;

and/or a water leakage port is arranged on the rear side of the bottom of the main machine.

10. The hand-held cleaning device according to any one of claims 1 to 7, wherein the main machine further comprises a battery disposed at a front side of the tank.

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