CN218186671U - Surface cleaning device - Google Patents

Abstract

The utility model discloses a surface cleaning device belongs to cleaning equipment technical field, including fuselage and scrubbing brush, the fuselage includes the casing, dirty bucket of collection and the suction source subassembly that has the vacuum motor, dirty bucket of collection and suction source subassembly all can be dismantled and install on the casing, the casing includes main part and location portion, the top side of location portion combines with the lateral wall of main part to be formed with the installing zone, be equipped with the inlet channel who is used for communicateing dirty bucket of collection and suction source subassembly in the location portion, the lateral wall of suction source subassembly is equipped with the air outlet, the lateral wall of main part is equipped with the air exit that is located location portion top, the air outlet discharges after flowing through the casing with the dirty air current of collection that guide vacuum motor work formed with the air exit butt joint. The distribution that staggers on the direction of height of casing of air exit and inlet channel can rationally reduce the resonance intensity that causes when album dirty air current flows through inlet channel and air exit, is favorable to rationally reducing the holistic noise at work of device to be favorable to improving user's use and experiencing.

Description

Surface cleaning device

Technical Field

The utility model relates to a cleaning device technical field especially relates to a surface cleaning device.

Background

In recent years, some intelligent cleaning devices are more and more widely applied to daily life, and various cleaning devices bring great convenience to the life of users. The surface cleaning machine is a common cleaning device, in order to collect the dirt on the surface to be cleaned, some surface cleaning machines are additionally provided with a dirt collecting system which is composed of components such as a suction source component and a dirt collecting barrel, when the suction source component works, a dirt collecting airflow flowing through the dirt collecting barrel is formed, and the dirt on the surface to be cleaned can be sucked into the dirt collecting barrel under the action of the dirt collecting airflow. In order to improve the functional application of the suction source component, the suction source component is detachably arranged on the body of the surface cleaning machine, the body is provided with an air inlet channel for communicating the dirt collection barrel with the suction source component, the side wall of the body is provided with an air outlet matched with the air outlet of the suction source component, the dirt collection airflow flowing through the dirt collection barrel flows into the suction source component through the air inlet channel, and the dirt collection airflow flowing through the suction source component flows into the body through the air outlet and then is discharged. Because the distance of the cooperation position of air outlet and air exit is nearer with inlet channel in the current product, it is great to gather the noise of the operating that the dirty air current arouses resonance to lead to the product when flowing through inlet channel and air exit easily, is unfavorable for improving user's use and experiences.

SUMMERY OF THE UTILITY MODEL

In order to solve the shortcoming and the deficiency that exist among the above-mentioned prior art, the utility model provides a surface cleaning device rationally improves the position of air outlet and air exit, reduces the resonance intensity that dirty air current of collection flowed through inlet channel and air exit and causes, is favorable to the reasonable noise at operation who reduces the device.

In order to realize the technical purpose, the utility model provides a pair of surface cleaning device, including fuselage and pin joint in the scrubbing brush of fuselage bottom, the fuselage includes casing, collection dirty bucket and has the suction source subassembly of vacuum motor, and collection dirty bucket and suction source subassembly all can be dismantled and install on the casing, the casing includes the main part and from the outside convex location portion of the lateral wall of main part, and the top side of location portion combines with the lateral wall of main part to be formed with the installing zone that is used for installing the suction source subassembly, is equipped with the inlet channel who is used for communicateing collection dirty bucket and suction source subassembly in the location portion, and the lateral wall of suction source subassembly is equipped with the air outlet, and the lateral wall of main part is equipped with the air exit that is located location portion top, and the air outlet is discharged after flowing through the casing with the collection dirty air current that the guide vacuum motor work formed with the air exit butt joint.

Preferably, a guide groove is formed in the side wall of the main body part forming the mounting area, an outwardly protruding guide protrusion is arranged on the side wall of the suction source assembly, the air outlet is formed in the guide protrusion, and the guide protrusion is matched with the guide groove to guide the air outlet to be in butt joint with the air outlet.

Preferably, the side wall of the suction source component is provided with a power supply terminal, the side wall of the main body part forming the mounting area is provided with a power connection terminal, the air outlet is arranged above the power supply terminal, the positioning part is provided with a cavity positioned at the bottom of the mounting area, and the lower end of the suction source component is inserted into the cavity so that the air outlet is in butt joint with the air outlet when the suction source component is rotatably mounted.

Preferably, the air outlet is higher than the lower end of the vacuum motor and lower than the upper end of the vacuum motor.

Preferably, the suction source assembly comprises a battery and an accommodating cavity for accommodating the battery, the battery is positioned above the vacuum motor, a flow channel communicated with the air outlet is arranged in the suction source assembly, and the accommodating cavity is communicated with the flow channel so that the heat generated by the battery carried by the sewage collecting airflow is discharged out of the suction source assembly through the air outlet.

Preferably, the vacuum motor is provided with a vent, and the air outlet is not lower than the vent.

Preferably, the air outlet is higher than the lower edge of the battery.

Preferably, the flow passage is provided with a small-diameter section with a reduced inner diameter, the small-diameter section is communicated with the accommodating cavity, and the sewage collecting airflow forms heat dissipation airflow flowing to the flow passage in the accommodating cavity through a venturi effect when flowing through the small-diameter section.

Preferably, an exhaust passage communicated with the inside of the housing is formed between the dirt collecting barrel mounted on the housing and the housing, and the dirt collecting airflow flowing into the inside of the housing through the exhaust port flows through the exhaust passage and is then discharged.

Preferably, the surface cleaning apparatus includes a dirt cup assembly with which the suction source assembly is removably engaged.

After the technical scheme is adopted, the utility model has the advantages of as follows:

1. the utility model provides a surface cleaning device, the top side of location portion combines to form the installing zone that is used for installing the suction source subassembly with the lateral wall of main part, is favorable to improving the structural stability of suction source subassembly when installing on the casing. Set up the inlet channel who is used for communicateing dirty bucket of collection and suction source subassembly in location portion, be located the top of location portion with air outlet butt joint complex air exit on the lateral wall of main part, the distribution of staggering on the direction of height of casing of air exit and inlet channel can rationally reduce the resonance intensity that causes when dirty air current of collection flows through inlet channel and air exit, is favorable to rationally reducing the holistic noise at work of device to be favorable to improving user's use and experiencing.

2. In the first structure, the air outlet is preferred to be located the direction protruding department on the suction source subassembly lateral wall, and when the suction source subassembly was installed on the casing, the guide projection made air outlet and air exit butt joint cooperation when with the guide way complex, was favorable to rationally reducing the installation degree of difficulty of suction source subassembly. When the suction source assembly is installed on the shell, the matching of the guide protrusion and the guide groove is also favorable for reasonably improving the stability of butt joint matching of the air outlet and the air outlet.

3. In another structure, the air outlet is preferably disposed above the power supply terminal on the sidewall of the suction source assembly, and when the suction source assembly is mounted on the housing, the lower end of the suction source assembly is inserted into the cavity and then the suction source assembly is deflected toward the main body, so that the power supply terminal is coupled with the power connection terminal and the air outlet is in butt joint with the air outlet. The air outlet and the air outlet are reasonably arranged, and the butt joint difficulty between the air outlet and the air outlet is favorably reduced.

4. The air outlet is preferably higher than the lower end of the vacuum motor and lower than the upper end of the vacuum motor, so that the length of a flow path of the sewage collecting airflow in the suction source assembly can be shortened reasonably, and the sewage collecting efficiency can be improved reasonably.

5. A flow channel intercommunication for installing the chamber that holds of battery and confession collection dirty air current flow through, collection dirty air current carries the heat that the battery produced when flowing through flow channel and then discharges the suction source subassembly through the air outlet, utilizes collection dirty air current to dispel the heat to the battery simultaneously, can reduce the temperature rise of battery at the device during operation, is favorable to improving the power supply stability of battery at the device during operation.

6. The air outlet is preferably not lower than the vent of the vacuum motor, so that the heat of the battery can be effectively carried by the sewage collecting airflow after the sewage collecting airflow passes through the vent and flows towards the air outlet along the flow channel, and the heat dissipation effect of the sewage collecting airflow on the battery is favorably improved.

7. The preferable lower border setting that is higher than the battery of air outlet makes the dirty air current of collection effectively carry the heat of battery towards the air outlet flow in-process through flow channel, is favorable to improving the radiating effect of dirty air current of collection to the battery.

8. The flow channel is provided with a small-diameter section with an inner diameter reduced and communicated with the containing cavity, when the collected sewage flows through the small-diameter section, under the action of a Venturi effect, the heat dissipation airflow flowing to the flow channel is formed in the containing cavity, the heat dissipation airflow and the collected sewage flow converge and then flow to the air outlet, the heat generated by the battery can be carried by the collected sewage flow through the heat dissipation airflow, and then the suction source assembly is discharged through the air outlet, so that the purpose of heat dissipation of the battery by the collected sewage flow is realized.

9. When the dirt collecting barrel is arranged on the shell, an air exhaust channel communicated with the inside of the shell is formed between the dirt collecting barrel and the shell, dirt collecting air flowing into the inside of the shell through the air exhaust port is exhausted after passing through the air exhaust channel, the forming structure of the air exhaust channel is reasonably arranged, and the reasonable simplification of the structure of the shell and the dirt collecting barrel is facilitated.

Drawings

FIG. 1 is a block diagram of a surface cleaning apparatus according to an embodiment with a dirt collection vessel and a suction source assembly mounted to a housing;

FIG. 2 is an exploded view of a portion of the components of a surface cleaning apparatus according to one embodiment;

FIG. 3 is a partial block diagram of a housing of a surface cleaning apparatus according to one embodiment;

FIG. 4 is a schematic view of the internal structure of a surface cleaning apparatus of an embodiment in which a dirt collection vessel and a suction source assembly are mounted to a housing;

FIG. 5 is a schematic external view of a suction source assembly of a surface cleaning apparatus according to one embodiment;

FIG. 6 is an internal block diagram of a suction source assembly of a surface cleaning apparatus according to one embodiment;

FIG. 7 is a block diagram of a vacuum motor in a surface cleaning apparatus according to an embodiment;

FIG. 8 is a block diagram of a suction source assembly and dirt cup assembly of a surface cleaning apparatus according to one embodiment;

FIG. 9 is a schematic view of the internal structure of a suction source assembly of a surface cleaning apparatus according to an embodiment of the present invention.

In the figure, 10-machine body, 20-ground brush, 201-roller brush cavity, 202-dirt inlet, 100-shell, 110-main body part, 111-guide groove, 112-electric connection terminal, 113-outflow hole, 120-positioning part, 121-air inlet channel, 122-concave cavity, 130-installation area, 140-air outlet, 150-support part, 160-handle, 200-dirt collecting barrel, 300-suction source component, 310-vacuum motor, 311-dirt collecting inlet hole, 312-cold air inlet hole, 313-air outlet, 321-air inlet, 322-air outlet, 330-shell, 340-middle shell, 341-air outlet hole, 350-air guide cover, 351-air guide hole, 361-inner cavity, 362-outer cavity, 370-guide projection, 381-accommodation cavity, 382-flow channel, 3821-small-diameter section power supply section, 391-battery, 392-terminal, 400-cleaning roller, 500-dirt inlet pipeline, 600-dust exhaust channel and 700-dust cup component.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that the following terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like are used in an orientation or positional relationship relative to one another only as illustrated in the accompanying drawings and are used merely for convenience in describing and simplifying the invention, and do not indicate or imply that the device/component so referred to must have a particular orientation or be constructed and operated in a particular orientation and therefore should not be considered as limiting the invention.

Example one

As shown in fig. 1 to 8, a surface cleaning apparatus according to a first embodiment of the present invention includes a body 10 and a floor brush 20 pivotally connected to a bottom end of the body 10, the body 10 includes a housing 100, a dirt collecting barrel 200 and a suction source assembly 300 having a vacuum motor 310, and both the dirt collecting barrel 200 and the suction source assembly 300 are detachably mounted on the housing 100. The housing 100 includes a main body 110 and a positioning part 120 protruding outward from a sidewall of the main body 110, a mounting area 130 for mounting the suction source assembly 300 is formed by combining a top side of the positioning part 120 and the sidewall of the main body 110, and an air inlet channel 121 for communicating the dirt collecting bucket 200 and the suction source assembly 300 is provided in the positioning part 120. An air outlet 322 is disposed on a side wall of the suction source assembly 300, an air outlet 140 located above the positioning portion 120 is disposed on a side wall of the main body portion 110, and the air outlet 322 is in butt joint with the air outlet 140 to guide the sewage collecting airflow formed by the operation of the vacuum motor 310 to flow through the casing 100 and then to be discharged.

The top side of location portion combines with the lateral wall of main part to form the installation region that is used for installing the suction source subassembly, is favorable to improving the structural stability when suction source subassembly is installed on the casing. Set up the inlet channel who is used for communicateing dirty bucket of collection and suction source subassembly in location portion, be located the top of location portion with air outlet butt joint complex air exit on the lateral wall of main part, the distribution of staggering on the direction of height of casing of air exit and inlet channel can rationally reduce the resonance intensity that causes when dirty air current of collection flows through inlet channel and air exit, is favorable to rationally reducing the holistic noise at work of device to be favorable to improving user's use and experiencing.

Referring to fig. 4, in the present embodiment, a roller brush cavity 201 is provided at the front side of the bottom of the floor brush 20, a cleaning roller 400 is provided in the roller brush cavity 201 and is axially arranged in the left-right direction, and a cleaning motor for driving the cleaning roller 400 to rotate is provided inside the floor brush 20. The scrubbing brush 20 is equipped with and is located scrub roller 400 rear and advance dirty mouthful 202 with roller brush chamber 201 intercommunication, is equipped with between the bottom of scrubbing brush 20 and casing 100 to be used for the intercommunication to advance dirty mouthful 202 and dirty tub 200 of advancing dirty pipeline 500 of collection, advances dirty pipeline 500 one end and advances dirty mouthful 202 intercommunication, advances dirty pipeline 500 the other end and dirty tub 200 of collection and can dismantle the butt joint intercommunication.

The sump 200 and the suction source assembly 300 are detachably mounted to the front side of the main body 110, and accordingly, the positioning part 120 is protruded forward with respect to the main body 110 of the casing 100. The handle 160 is disposed at the top end of the main body 110, the supporting portion 150 protruding forward is disposed at the bottom end of the main body 110, the supporting portion 150 is located below the positioning portion 120, and the dirt collecting barrel 200 is located between the positioning portion 120 and the supporting portion 150 when being mounted on the housing 100.

Referring to fig. 5 and 6, an air inlet 321 is formed on a bottom wall of the suction source assembly 300, and the sewage collecting air flowing through the air inlet channel 121 flows into the interior of the suction source assembly 300 through the air inlet 321. In this embodiment, the pumping source assembly 300 includes a housing 330, a middle casing 340 inserted into a lower portion of the housing 330, and an air guiding cover 350 disposed in the middle casing 340, the vacuum motor 310 is disposed in the middle casing 340, the air guiding cover 350 is sleeved on a circumferential outer portion of the vacuum motor 310, an inner cavity 361 for flowing of a sewage collecting airflow is formed between the air guiding cover 350 and the vacuum motor 310, an outer cavity 362 for flowing of the sewage collecting airflow is formed between the air guiding cover 350 and the middle casing 340, the air guiding cover 350 is provided with an air guiding hole 351 for communicating the inner cavity 361 and the outer cavity 362, and the middle casing 340 is provided with an air passing hole 341 for communicating the outer cavity 362 and the air outlet 322. The lower end of the vacuum motor 310 is provided with a dirt collecting inlet 311 for allowing a dirt collecting airflow to flow into the vacuum motor 310, and with reference to fig. 7, the upper end of the vacuum motor 310 is provided with a cold air inlet 312 for allowing cold air to flow into the vacuum motor 310, and the substantially middle portion of the vacuum motor 310 is provided with a vent 313 for allowing a dirt collecting airflow to flow out of the vacuum motor 310. The sewage collecting airflow flowing through the air inlet channel 121 flows into the vacuum motor 310 through the air inlet 321 and the sewage collecting inlet 311, meanwhile, a cold airflow flowing from the cold air inlet 312 and used for dissipating heat of the vacuum motor 310 is formed in the vacuum motor 310, the sewage collecting airflow and the cold airflow converge and then flow out of the vacuum motor 310 through the vent 313 and flow into the inner cavity 361, then flow into the outer cavity 362 through the air guide hole 351, and finally flow out of the suction source assembly 300 through the air outlet 341 and the air outlet 322.

In order to improve the dirt collecting efficiency, in this embodiment, the air outlet 322 is preferably disposed higher than the lower end of the vacuum motor 310 and lower than the upper end of the vacuum motor 310, so as to facilitate a reasonable reduction in the flow path length of the dirt collecting air flow inside the suction source assembly 300. Specifically, the air outlet 322 is slightly higher than the air vent 313.

Referring to fig. 4, the side wall of the main body 110 forming the mounting region 130 is provided with a concave guide groove 111, and the exhaust outlet 140 is provided on the wall of the guide groove 111. The sidewall of the suction source assembly 300 is provided with a guide protrusion 370 protruding outward and engaged with the guide groove 111, and the air outlet 322 is provided at the guide protrusion 370. When suction source subassembly 300 is installed on casing 100, the cooperation of guide projection 370 and guide way 111 is in order to guide air outlet 322 and air exit 140 butt joint cooperation, is favorable to rationally reducing suction source subassembly 300's the installation degree of difficulty, also is favorable to rationally improving air outlet 322 and air exit 140 butt joint complex stability through the cooperation of guide projection 370 and guide way 111 when the device is worked. In this embodiment, the guide projection 370 is formed by partially projecting outward of the housing 330.

With reference to fig. 6, the suction source assembly 300 further comprises a battery 391 and a receiving cavity 381 for accommodating the battery 391, the battery 391 supplying power to the electrical components of the apparatus when the apparatus is in operation. In this embodiment, the receiving cavity 381 is disposed at the upper portion of the housing 330 and above the vacuum motor 310, and correspondingly, the battery 391 is disposed above the vacuum motor 310. A power supply terminal 392 electrically connected to the battery 391 is provided on a sidewall of the suction source assembly 300, and an electrical connection terminal 112 detachably coupled to the power supply terminal 392 is provided on a sidewall of the main body part 110 combined with the positioning part 120 to form the mounting region 130. The guide protrusion 370 is positioned below the power supply terminal 392, and accordingly, the air outlet 322 is also positioned below the power supply terminal 392, and the air outlet 140 is positioned below the electric connection terminal 112. When suction source assembly 300 is mounted to housing 100, power supply terminal 392 is coupled to electrical terminal 112 so that battery 391 may supply power to the power consuming components of the device.

Referring to fig. 3, a cavity 122 is recessed from the positioning portion 120 at the bottom of the mounting region 130, and the cavity 122 is communicated with the air inlet channel 121. When the suction source assembly 300 is mounted to the housing 100, the lower end of the suction source assembly 300, which is located below the guide projection 370, is inserted into the cavity 122 such that the intake port 321 communicates with the intake passage 121.

Referring to fig. 3 and 4, when the dirt collection tub 200 is mounted to the housing 100, an air discharge duct 600 is formed between the rear wall of the dirt collection tub 200 and the front wall of the housing 100, an air discharge gap is formed between the bottom of the dirt collection tub 200 and the support 150, and the front wall of the housing 100 is provided with an outlet 113 located below the positioning portion 120 and communicating with the inside of the housing 100. The dirt-collected air flow flowing into the interior of the housing 100 through the air discharge opening 140 flows downward and flows into the air discharge passage 600 through the outflow hole 113, then flows downward along the air discharge passage 600, and finally is discharged out of the body 10 through the air discharge gap.

When the apparatus is operated, the suction source module 300 and the dirt collection tub 200 are mounted on the casing 100, and the battery 391 supplies power to the respective electric elements of the apparatus. The cleaning motor drives the cleaning roller 400 to rotate, so as to wipe the surface to be cleaned, meanwhile, the vacuum motor 310 works to provide suction force to form a dirt collecting airflow, and dirt at the bottom of the floor brush 20 is sucked into the dirt collecting barrel 200 under the action of the dirt collecting airflow. The sewage collecting airflow flows in from the sewage inlet 202, then flows into the sewage collecting barrel 200 through the sewage inlet pipeline 500, the sewage collecting airflow flowing through the sewage collecting barrel 200 flows into the vacuum motor 310 through the air inlet channel 121, the air inlet 321 and the sewage collecting inlet 311, meanwhile, the cold air inlet 312 forms a heat dissipating airflow flowing into the vacuum motor 310, the sewage collecting airflow and the heat dissipating airflow are converged and then flow out of the vacuum motor 310 through the air outlet 313 to flow into the inner cavity 361, then flow into the outer cavity 362 through the air guiding hole 351, and then flow out of the suction source assembly 300 through the air outlet 341 and the air outlet 322. The airflow flowing out from the air outlet 322 flows into the casing 100 from the air outlet 140, then flows downward, and then flows into the air exhaust channel 600 through the outlet hole 113, and the airflow flows downward along the air exhaust channel 600 and is discharged out of the machine body 10 through the air exhaust gap.

With reference to fig. 8, the surface cleaning apparatus of the present embodiment further includes a dirt cup assembly 700, and the suction source assembly 300 is removably engaged with the dirt cup assembly 700. In this embodiment, the suction source assembly 300 and the dirt cup assembly 700 are detachably engaged with each other by a snap structure, and the suction source assembly 300 and the dirt cup assembly 700 can be used for dry dust collection, which is beneficial to reasonably expanding the functional use of the suction source assembly 300.

It is understood that the specific structure of the filth collection tub 200 can be referred to the prior art.

It is understood that the air outlet 322 may be flush with the air outlet 313 of the vacuum motor 310.

It is understood that the air outlet 322 may be disposed slightly below the air outlet 313 of the vacuum motor 310.

It is understood that the guide projection 370 may be formed by partially protruding outward of the middle case 340, and in this case, the air passing hole 341 and the air outlet 322 are integrated.

It is understood that the surface cleaning apparatus may be provided with a liquid supply system for supplying liquid to the cleaning roller 400 to wet the cleaning roller 400, and the specific structure of the liquid supply system is described in the prior art.

It will be appreciated that the specific construction of the dirt cup assembly 700 is described with reference to the prior art.

Example two

Referring to fig. 9, in this embodiment, the air outlet 322 is disposed above the power supply terminal 392, and the lower end of the suction source assembly 300 is inserted into the cavity 122, so that the air outlet 322 is abutted to the air outlet 140 when the suction source assembly 300 is rotatably installed. Specifically, a flow channel 382 communicated with the air outlet 322 is disposed in the suction source assembly 300, and the accommodation cavity 381 is communicated with the flow channel 382, so that the collected sewage flow carries heat generated by the battery 391 and then is discharged out of the suction source assembly 300 through the air outlet 322. Utilize dirty air current of collection to dispel the heat to battery 391 simultaneously, can reduce the temperature rise of battery 391 at the device during operation, be favorable to improving the power supply stability of battery 391 at the device during operation.

In order to improve the heat dissipation effect of the battery 391, the air outlet 322 is preferably disposed higher than the lower edge of the battery 391. In this embodiment, the lower end of the flow channel 382 is communicated with the air passing hole 341 on the side wall of the middle shell 340, and the upper end of the flow channel 382 is communicated with the air outlet 322. The flow channel 382 has a small diameter section 3821 with a reduced inner diameter, the small diameter section 3821 is communicated with the accommodation chamber 381, and when the sewage collecting airflow passes through the small diameter section 3821, a heat dissipating airflow flowing to the flow channel 382 is formed in the accommodation chamber 381 by a venturi effect.

The sewage collecting airflow flowing out through the air holes 341 flows upward along the flow channel 382, a certain negative pressure effect is generated when the sewage collecting airflow flows through the small-diameter section 3821, the air inside the accommodating cavity 381 forms a heat dissipation airflow flowing from the inside of the accommodating cavity 381 toward the small-diameter section 3821 under the negative pressure effect, heat generated by the battery 391 is taken away when the heat dissipation airflow flows, and the heat dissipation airflow and the sewage collecting airflow are converged, flow upward along the flow channel 382, and then are discharged out of the suction source assembly 300 through the air outlet 322.

The other structures of the second embodiment are the same as those of the first embodiment, and are not described in detail here.

It will be appreciated that the inner diameter of the small-diameter section 3821 is about 0.1, 0.2, 0.3, etc. of the inner diameter of the flow passage 382.

It will be appreciated that the air outlet 322 is preferably located above the air vents 313 of the vacuum motor 310.

It is understood that the guide protrusion 370 may be disposed above the power supply terminal 392, in which case the air outlet 322 is disposed at the guide protrusion 370, and correspondingly, the guide groove 111 is disposed above the electrical connection terminal 112.

In addition to the above preferred embodiments, the present invention has other embodiments, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope defined by the appended claims.

Claims (10)

1. The utility model provides a surface cleaning device, includes fuselage and pin joint in the scrubbing brush of fuselage bottom, and the fuselage includes casing, collection dirty bucket and has the suction source subassembly of vacuum motor, and collection dirty bucket and suction source subassembly all can be dismantled and install on the casing, a serial communication port, the casing includes the main part and from the outside convex location portion of lateral wall of main part, and the top side of location portion combines with the lateral wall of main part to be formed with the installing zone that is used for installing the suction source subassembly, is equipped with the inlet channel who is used for communicateing collection dirty bucket and suction source subassembly in location portion, and the lateral wall of suction source subassembly is equipped with the air outlet, and the lateral wall of main part is equipped with the air exit that is located location portion top, and the air outlet discharges after flowing through the casing with the collection dirty air current that guide vacuum motor work formed with the air outlet butt joint.

2. The surface cleaning apparatus of claim 1, wherein the side wall of the body defining the mounting region is provided with a guide slot, the side wall of the suction source assembly is provided with an outwardly protruding guide projection, the air outlet is provided at the guide projection, and the guide projection and the guide slot cooperate to guide the air outlet to abut against the air outlet.

3. The surface cleaning apparatus of claim 1, wherein the side wall of the suction source assembly is provided with a power supply terminal, the side wall of the body portion forming the mounting region is provided with an electrical connection terminal, the air outlet is arranged above the power supply terminal, the positioning portion is provided with a cavity at the bottom of the mounting region, and the lower end of the suction source assembly is inserted into the cavity so that the air outlet is in butt joint with the air outlet when the suction source assembly is rotatably mounted.

4. The surface cleaning apparatus of claim 1 wherein the air outlet is higher than a lower end of the vacuum motor and lower than an upper end of the vacuum motor.

5. The surface cleaning apparatus of any one of claims 1-3, wherein the suction source assembly comprises a battery and a receptacle for receiving the battery, the battery is positioned above the vacuum motor, the suction source assembly defines a flow channel in communication with the air outlet, and the receptacle is in communication with the flow channel such that the collected waste air stream carries heat generated by the battery and exits the suction source assembly through the air outlet.

6. A surface cleaning apparatus as claimed in claim 5, characterised in that the vacuum motor is provided with a vent, the outlet being not below the vent.

7. A surface cleaning apparatus as claimed in claim 5, characterised in that the outlet is above the lower edge of the cell.

8. The surface cleaning apparatus of claim 5 wherein the flow passage has a reduced diameter section with a reduced inner diameter, the reduced diameter section communicating with the chamber, the dirt-laden air flow passing through the reduced diameter section creating a heat-dissipating air flow in the chamber toward the flow passage by a venturi effect.

9. The surface cleaning apparatus of claim 1, wherein an exhaust passage communicating with the interior of the housing is formed between the dirt collection vessel mounted on the housing and the housing, and the dirt collection airflow flowing into the interior of the housing through the exhaust port is exhausted after flowing through the exhaust passage.

10. The surface cleaning apparatus of claim 1, wherein the surface cleaning apparatus comprises a dirt cup assembly, and the suction source assembly is removably engaged with the dirt cup assembly.

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