A wet and dry vacuum cleaner with enhanced corner cleaning capability

Abstract

The invention discloses a wet / dry vacuum cleaner with increased corner cleaning capability, comprising: a floor brush component, the floor brush component comprising a main housing, a clean water tank and a roller brush; a negative pressure suction hole is provided on the main housing, and the rotating roller brush rolls sewage and garbage to the negative pressure suction hole; a water delivery pipeline connected to a diversion component is provided at the bottom of the clean water tank, and a plurality of nozzles are provided on the diversion component, and a water pump delivers water in the clean water tank to the diversion component through the water delivery pipeline and sprays the water to the roller brush through the nozzle; a body component, the body component comprising a main body, a sewage tank and an air extraction device; a negative pressure pipeline is sealed between the interior of the sewage tank and the negative pressure suction hole, and the air extraction device works and generates negative pressure to suck sewage and garbage at the negative pressure suction hole into the sewage tank through the negative pressure pipeline. The clean water tank of the invention is arranged on the floor brush component, which reduces the labor intensity of the user, and the roller brush of the invention is detachably arranged at the front end of the main housing, which greatly increases the cleaning capability at corners.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum cleaners, and in particular to a wet and dry dual-purpose vacuum cleaner with enhanced corner cleaning capability. Background Art

[0002] Vacuum cleaners have been in human society for more than a hundred years and have played an important role in daily production and life. The working principle of a vacuum cleaner is to use an electric motor to drive the blades to rotate at high speed, generate negative air pressure in a sealed shell, and then absorb dust to achieve the purpose of cleaning; however, in order to clean some stains adhering to the surface to be cleaned while vacuuming, people add auxiliary cleaning water tanks and roller brushes to the vacuum cleaners. The water in the water tank soaks the roller brush, and the roller brush is used to clean those adhering stains, which greatly improves the cleaning ability of the vacuum cleaner. Since then, wet and dry vacuum cleaners have appeared; with the improvement of people's living standards and the advancement of science and technology, wet and dry vacuum cleaners have become more and more popular. It is popular with families. In the prior art, the clean water tank of a wet / dry vacuum cleaner is usually set on the body, and a long pipeline is required to transport clean water to the roller brush. The overall structural design and layout are difficult, the transport power requirement is high, and the clean water utilization rate is low. The most important thing is that the cleaning staff always have to bear the weight of the clean water tank and clean water during use, which increases the labor intensity of the cleaning staff and reduces the cleaning staff's willingness to use it. At the same time, the roller brush of a wet / dry vacuum cleaner is usually set in the floor brush housing. When cleaning the corners of the floor, due to the obstruction of the floor brush housing, the roller brush cannot reach the corners of the surface to be cleaned, which greatly reduces the cleaning ability of the vacuum cleaner. Therefore, it is urgent to make necessary improvements and innovations to the existing wet / dry vacuum cleaners to meet market demand. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a wet and dry dual-purpose vacuum cleaner which can increase the corner cleaning ability, reduce the labor intensity of cleaning personnel and improve the utilization rate of clean water.

[0004] In order to solve the above technical problems, the present invention provides a wet and dry vacuum cleaner with improved corner cleaning capability, which is characterized by comprising:

[0005] A floor brush component, the floor brush component comprising a main housing, a clean water tank and a roller brush both mounted on the main housing;

[0006] The roller brush is rotatably mounted at the front end of the main housing, a driving mechanism for driving the roller brush to rotate is mounted on the main housing, a negative pressure suction hole corresponding to the roller brush is provided on the main housing, and the rotating roller brush rolls the sewage and garbage on the surface to be cleaned to the negative pressure suction hole;

[0007] A water delivery pipeline connected to the diversion assembly is provided at the bottom of the clean water tank, a water pump is connected in series to the water delivery pipeline, the diversion assembly is installed on the main housing, a plurality of nozzles arranged toward the roller brush are provided on the diversion assembly, the water pump pumps the water in the clean water tank to the diversion assembly through the water delivery pipeline, and the nozzle sprays the water entering the diversion assembly onto the roller brush;

[0008] The fuselage parts include a main body, a sewage tank, an air extraction device and an operating handle all mounted on the main body;

[0009] One end of the main body is connected to the rear end of the main shell, the sewage tank is a sealed box and a negative pressure pipe is sealed between the interior of the box and the negative pressure suction hole, the air inlet of the air suction device is sealed to the interior of the sewage tank, the operating handle and the main shell are respectively connected to the two ends of the main body, and the air suction device works and generates negative pressure to suck the sewage and garbage at the negative pressure suction hole into the sewage tank through the negative pressure pipe.

[0010] As a further improvement of the present invention, the main shell body includes an upper shell monomer and a lower shell monomer that are matched and buckled and fixed together. The lower surface of the lower shell monomer is provided with a plurality of front rollers that are coaxially rotatably installed, and the rear end of the main shell body is provided with a plurality of rear rollers that are coaxially rotatably installed. The roller brush includes a cylindrical shaft cylinder and a brush body fixed on the outer circumferential surface of the shaft cylinder. Both ends of the shaft cylinder are plugged with plugs fixed thereto, the outer end of one of the plugs is fixed with a bearing coaxial with the shaft cylinder, and the inner ring of the bearing is fixed to the corresponding plug, and the outer end of the other plug is provided with a spline groove. Both sides of the main shell body are respectively provided with a driving mechanism and a supporting end cover, the roller brush is clamped and installed between the supporting end cover and the driving mechanism, and the outer ring of the bearing on the roller brush is matched and supported in a positioning ring body set on the supporting end cover, the spline head set on the driving mechanism matches and extends into the spline groove at the end of the roller brush and drives the roller brush to rotate synchronously, and an arc-shaped transparent guard plate located above the roller brush is fixed on the upper shell monomer.

[0011] As a further improvement of the present invention, the driving mechanism includes a driving motor, a supporting shell and a speed change assembly installed in the supporting shell, the speed change assembly includes a driving pulley, an intermediate pulley and a driven pulley rotatably installed in the supporting shell, the supporting shell is clamped and fixed between the upper shell monomer and the lower shell monomer, the driving pulley is coaxially fixed with the output shaft of the driving motor, and the driving motor is fixed to the outside of the supporting shell, a first synchronous belt forming a belt transmission is connected between the driving pulley and the intermediate pulley, a second synchronous belt forming a belt transmission is connected between the driven pulley and the intermediate pulley, a spline head located outside the supporting shell and extending toward the supporting end cover is coaxially fixed on the driven pulley, the spline head matches and extends into the spline groove at the end of the roller brush, the driving motor drives the spline head to rotate through the first synchronous belt and the second synchronous belt, and the spline head drives the roller brush to rotate synchronously.

[0012] As a further improvement of the present invention, a positioning ring body extending toward the spline head is fixed on the side of the support end cover, and a mounting body is also fixed on the support end cover, the mounting body is provided with a plurality of simultaneously retractable positioning pins and positioning fasteners, the positioning fasteners and positioning pins are respectively matched to extend into and positioned in the buckle grooves and positioning grooves provided on the decorative cover to fix the mounting body on the decorative cover, and a driving member for driving the positioning pins and positioning fasteners to move synchronously is provided inside the mounting body, the positioning fastener is fixed on the driving member, the inner end of the positioning pin is provided with a supporting spring, the driving member drives the positioning pin to retract inwardly through an inclined surface, and the driving member is manually pulled to make the positioning pin and the positioning fastener move synchronously and respectively disengage from the corresponding positioning grooves and buckle grooves to separate the mounting body from the decorative cover, and the decorative cover is clamped and fixed between the upper shell monomer and the lower shell monomer.

[0013] As a further improvement of the present invention, the negative pressure suction hole is arranged on the lower shell monomer, and both sides of the outer end of the negative pressure suction hole are smoothly connected with a trumpet-shaped guide channel, the width covered by the guide channel corresponds to the length of the roller brush, and the lower edge of the guide channel is provided with a scraper bar extending obliquely downward, and a flat suction port is provided between the scraper bar and the roller brush, and a long strip diversion component horizontally fixed to the lower shell monomer is provided above the guide channel, and the length of the diversion component corresponds to the length of the roller brush. The diversion component includes a long strip diversion body, a cover plate and a water inlet joint, and the diversion The main body is fixed on the lower shell monomer, and the brush body of the roller brush is in contact with the lower edge of the diversion body. The diversion body is provided with a plurality of water spray holes distributed along its length direction, and the water outlet end of the water spray hole is provided with a trumpet-shaped guide surface arranged opposite to the roller brush, and a vertical diversion block is provided at the port of the water outlet end of the water spray hole. The water spray hole, the guide surface and the diversion block constitute the nozzle, and the water inlet end of the water spray hole is connected with the diversion chamber, which is arranged on the diversion body and sealed by the cover plate to form a sealed chamber, and a water inlet joint connected with the diversion chamber is fixed on the cover plate.

[0014] As a further improvement of the present invention, the water supply pipeline is arranged in the space between the upper shell monomer and the lower shell monomer, and the water supply pipeline includes a water pump, a water inlet main pipe, a drainage main pipe, a multi-way joint and a plurality of water inlet branches, the two ends of the water inlet branch are respectively connected to the inner cavity of the switching valve and the multi-way joint, the switching valve is connected to the bottom of the clean water tank, the two ends of the water inlet main pipe are respectively connected to the water inlet of the water pump and the multi-way joint, the two ends of the drainage main pipe are respectively connected to the drainage port of the water pump and the water inlet joint, the water inlet main pipe is connected in series with an electronic water valve for controlling the on-off of the water circuit, and the electronic water valve, water pump and switching valve are all fixed on the upper surface of the lower shell monomer.

[0015] As a further improvement of the present invention, a plurality of drainage holes and water injection ports are provided at the bottom of the clean water tank, a duckbill valve for air to enter the box body is provided at the top of the clean water tank, a sealing cover is screwed on the water injection port to seal it, a water purifier located inside the clean water tank is threadedly connected to the sealing cover, a drainage valve is correspondingly installed on the drainage hole, and the drainage valve includes a valve body and a valve core, the valve body is fixed inside the clean water tank, and a hollow structure for water supply is provided on the top of the valve body, a valve stem is fixed on the valve core and slides vertically upward and penetrates the valve body, and a valve core is mounted on the valve stem to press the corresponding valve core seal tightly against the corresponding drainage A compression spring is provided in the hole, and a plurality of clamping feet and telescopic positioning heads are provided on the outside of the clean water tank, and the clamping feet and the positioning heads match and extend into the clamping grooves provided on the upper shell monomer to match and fix the clean water tank in the concave surface provided on the upper surface of the upper shell monomer, and the drainage hole at the bottom of the clean water tank corresponds to the transfer valve one by one, and the transfer valve is provided with a push rod which vertically penetrates the through hole at the bottom of the upper shell monomer, and the push rod lifts the corresponding valve core upward to open the drainage hole, and the through hole at the bottom of the upper shell monomer is provided with a flexible sealing pressure ring which is sealed and clamped around the corresponding drainage hole and the transfer valve, and the drainage hole is sealed and connected with the inner cavity of the transfer valve.

[0016] As a further improvement of the present invention, the negative pressure pipe includes a first air duct and a connecting hose, the first air duct is clamped and fixed between the upper shell monomer and the lower shell monomer, the two ends of the first air duct are respectively sealed and connected with the negative pressure suction hole and the corresponding ends of the connecting hose, the other end of the connecting hose is sealed and connected to the lower end of the pipe joint, the pipe joint is fixed inside the adapter body, the adapter body is horizontally hinged at the rear end of the main shell body, the lower end of the main body is fixed to the outside of the adapter body, the lower end of the second air duct arranged inside the main body is sealed and connected to the upper end of the pipe joint, and the upper port of the second air duct is connected with a flexible sealing ring.

[0017] As a further improvement of the present invention, a positioning pad and a telescopic bayonet are respectively provided at the bottom and the top of the sewage tank, and the positioning pad and the bayonet are respectively matched and extended into the supporting groove and the limiting groove provided on the main body, so as to match and fix the sewage tank in the mounting hole provided on the main body, and a vertical check pipe is fixed to the bottom surface of the interior of the sewage tank, and the lower port of the check pipe passes through the bottom of the sewage tank, and the sealing ring is sealed and pressed around the lower port of the check pipe, and the check pipe is sealed and connected with the second air duct, and the upper end of the check pipe is provided with a lateral opening connected with the interior of the sewage tank, The lateral opening is directly opposite to the flow partition fixed on the top surface of the sewage tank. The top of the sewage tank is also provided with an exhaust hole. The interior of the sewage tank is also provided with a float for blocking the exhaust hole. The float is vertically slidably installed on the oblong hole of the fixing frame through a guide block arranged on its side. The fixing frame is fixed on the top surface of the sewage tank. The side of the fixing frame is also provided with an air intake window. The outer end of the exhaust hole is also provided with a connecting tube fixed on the top of the sewage tank. A filter body is arranged in the connecting tube. A circle of sealing gasket is arranged on the top edge of the connecting tube. The sealing gasket is sealed and pressed around the air inlet of the air extraction device.

[0018] As a further improvement of the present invention, the exhaust device is arranged at the upper end of the main body, and the exhaust port of the exhaust device is connected to the outside world through the gap between the sewage tank and the main body. A battery pack is also installed on the main body, and the operating handle is fixed at the upper end of the main body.

[0019] Beneficial effects of the present invention:

[0020] The present invention is a wet and dry dual-purpose vacuum cleaner with increased corner cleaning capability. Firstly, the clean water tank of the present invention is installed on the floor brush component to reduce the weight of the body component, and the floor brush component is provided with rollers. During use, the floor brush component carries the clean water tank and moves on the cleaning surface, which reduces the labor intensity of the cleaning staff and enhances the willingness to use. At the same time, after the liquid is injected into the clean water tank, the overall weight of the floor brush component is greatly increased, making the weight distribution of the entire vacuum cleaner more uniform and coordinated, and the walking stability of the floor brush component is better during the cleaning process, thereby improving the cleaning capability and cleaning efficiency of the roller brush on the stains adhered to the cleaning surface; secondly, after the clean water tank is installed on the main shell, the bottom of the clean water tank The drain valve will automatically open and automatically connect the clean water tank and the transfer valve, and the liquid in the clean water tank can automatically enter the transfer valve and the water delivery pipeline. After the clean water tank is removed from the main shell, the drain valve at the bottom of the clean water tank will automatically close. The overall structural design is ingenious, which is convenient for filling the clean water tank with water. Furthermore, the roller brush of the present invention is installed at the front end of the main shell, so that there is no fixed blocking object in front of the roller brush. The roller brush can roll to corners such as wall corners to the greatest extent, greatly increasing the cleaning ability of the roller brush on corners. At the same time, the supporting end cover arranged at one end of the roller brush can be flexibly disassembled, and the roller brush can be quickly disassembled from the main shell, which is convenient for daily cleaning and maintenance and replacement of the brush body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a wet and dry vacuum cleaner with enhanced corner cleaning capability;

[0022] Figure 2 The front cross-sectional view of a wet / dry vacuum cleaner with enhanced corner cleaning capability (the solid arrows in the figure indicate the flow direction of the mixture of air, water and garbage, and the hollow arrows indicate the flow direction of air);

[0023] Figure 3 for Figure 2 The enlarged schematic diagram of A in the figure (the solid arrows in the figure indicate the flow direction of the mixture of air, water and garbage, and the hollow arrows indicate the flow direction of air);

[0024] Figure 4 for Figure 2 The enlarged schematic diagram of B in the figure (the solid arrows in the figure indicate the flow direction of the mixture of air, water and garbage, and the hollow arrows indicate the flow direction of air);

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the fuselage components after removing the sewage tank;

[0026] Figure 6Figure a is a front cross-sectional view of the sewage tank, and Figure b is a schematic diagram of the three-dimensional structure in which the float is installed on a fixed support (the solid arrows in the figure indicate the flow direction of the mixture of air, water and garbage, and the hollow arrows indicate the flow direction of air);

[0027] Figure 7 It is a three-dimensional structural schematic diagram of a floor brush component;

[0028] Figure 8 This is a top view of the floor brush component after removing the clean water tank and the upper shell unit;

[0029] Fig. 9 for Figure 8 Cross-sectional view in CC direction;

[0030] Fig.10 Figure a is a schematic diagram of the three-dimensional structure of the floor brush component without the roller brush and the support end cover, and Figure b is a schematic diagram of the three-dimensional structure of the roller brush installed on the support end cover;

[0031] Fig.11 It is a schematic diagram of the three-dimensional structure of the support end cover and the mounting body;

[0032] Fig.12 Figure a is a schematic diagram of the three-dimensional structure of the driving member and the positioning pin installed in the installation body, and Figure b is a schematic diagram of the three-dimensional structure of the driving member and the positioning pin;

[0033] Fig.13 It is a schematic diagram of the three-dimensional structure of the driving mechanism (part of the cover plate on the supporting shell is removed);

[0034] Fig.14 This is a schematic diagram of the three-dimensional structure of the floor brush component after removing the clean water tank;

[0035] Fig.15 It is a cross-sectional view of the docking installation of the drain valve at the bottom of the clean water tank and the transfer valve on the lower shell monomer;

[0036] Fig.16 This is the front view of the clean water tank;

[0037] Fig.17 for Fig.16 Cross-sectional view in the middle DD direction;

[0038] Fig.18 Figure a is a front view of the shunt assembly, Figure b is a cross-sectional view in the EE direction of Figure a, and Figure c is a rear view of the shunt body;

[0039] Description of the numbers in the figure:

[0040] 10. Corner; 11. Main body; 12. Operating handle; 13. Sewage tank; 14. Battery pack; 15. Roller brush; 16. Air extraction device; 17. Driving mechanism; 18. Clean water tank; 181. Water inlet; 182. Sealing cover; 183. Water purifier; 19. Upper shell monomer; 191. Transparent guard plate; 192. Concave surface; 20. Lower shell monomer; 21. Front roller; 22. Rear roller; 23. Shaft cylinder; 24. Brush body; 25. Plug; 26. Bearing; 27. Spline groove; 28. Support end cover; 29. Driving motor; 30, supporting housing; 31, driving pulley; 32, intermediate pulley; 33, driven pulley; 34, first synchronous belt; 35, second synchronous belt; 36, spline head; 37, positioning ring; 38, positioning pin; 381, supporting spring; 39, positioning fastener; 391, buckle groove; 40, mounting body; 41, decorative cover; 42, positioning groove; 43, driving member; 44, negative pressure suction hole; 45, diversion channel; 46, scraper; 461, flat suction port; 47, diversion body; 48, cover plate; 49, water inlet Connector; 50, water spray hole; 51, guide surface; 52, diversion block; 53, diversion chamber; 54, water pump; 55, water inlet main pipe; 56, drainage main pipe; 57, multi-way connector; 58, water inlet branch; 59, transfer valve; 60, electronic water valve; 61, drainage hole; 62, duckbill valve; 63, drainage valve; 64, valve body; 65, valve core; 66, valve stem; 67, compression spring; 68, clamping foot; 69, positioning head; 70, clamping groove; 71, ejector rod; 72, sealing pressure ring; 73, first air duct; 74, connection Hose; 75. Pipe joint; 76. Adapter; 77. Second air duct; 78. Sealing ring; 79. Positioning pad; 80. Pin; 801. Support groove; 81. Limit groove; 82. Mounting hole; 83. Check pipe; 84. Side opening; 85. Baffle; 86. Exhaust hole; 87. Float; 88. Guide block; 89. Fixing bracket; 90. Oblong hole; 91. Air inlet window; 92. Connecting tube; 93. Filter body; 94. Sealing pad; 95. Air inlet of the exhaust device; 96. Exhaust of the exhaust device. DETAILED DESCRIPTION

[0041] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0042] Reference Figure 1-Figure 18 As shown, an embodiment of a wet and dry vacuum cleaner with enhanced corner cleaning capability according to the present invention;

[0043] Reference Figure 1-Figure 6As shown, a wet and dry vacuum cleaner with increased corner cleaning capability comprises: a floor brush component, the floor brush component comprises a main shell, a clean water tank 18 and a roller brush 15, both of which are mounted on the main shell; the roller brush 15 is rotatably mounted at the front end of the main shell, the main shell is mounted with a driving mechanism 17 for driving the roller brush 15 to rotate, the main shell is provided with a negative pressure suction hole 44 corresponding to the roller brush 15, the rotating roller brush 15 rolls the sewage and garbage on the surface to be cleaned to the negative pressure suction hole 44; a water supply pipeline connected to a diversion component is provided at the bottom of the clean water tank 18, a water pump 54 is connected in series on the water supply pipeline, the diversion component is mounted on the main shell, a plurality of nozzles arranged toward the roller brush 15 are provided on the diversion component, and the water pump 54 pumps the water in the clean water tank 18 through the water supply pipeline 54 is sent to the diversion component, and the nozzle sprays the water entering the diversion component onto the roller brush 15; the soaked roller brush 15 has stronger cleaning ability and higher cleaning efficiency; the body parts, the body parts include a main body 11, a sewage tank 13, an exhaust device 16 and an operating handle 12, all of which are installed on the main body 11; one end of the main body 11 is connected to the rear end of the main shell, the sewage tank 13 is a sealed box and a negative pressure pipeline is sealed between its interior and the negative pressure suction hole 44, the air inlet 95 of the exhaust device is sealed and connected to the interior of the sewage tank 13, the operating handle 12 and the main shell are respectively connected to the two ends of the main body 11, the exhaust device 16 works and generates negative pressure to suck the sewage and garbage at the negative pressure suction hole 44 into the sewage tank 13 through the negative pressure pipeline.

[0044] Reference Figure 1-Figure 10 As shown, the main shell body includes an upper shell monomer 19 and a lower shell monomer 20 that are matched and fixed together. The lower surface of the lower shell monomer 20 is provided with a plurality of front rollers 21 that are coaxially rotatably mounted. The rear end of the main shell body is provided with a plurality of rear rollers 22 that are coaxially rotatably mounted. The entire structure is supported by the front and rear rollers 22 to move on the surface to be cleaned. The roller brush 15 includes a cylindrical shaft barrel 23 and a brush body 24 fixed on the outer circumferential surface of the shaft barrel 23. Both ends of the shaft barrel 23 are plugged with plugs 25 fixed thereto, and the outer end of one of the plugs 25 is fixed with a bearing 26 coaxial with the shaft barrel 23, and the bearing 2 6 is fixed to the corresponding plug 25, and the outer end of the other plug 25 is provided with a spline groove 27, and the two sides of the main shell are respectively provided with a driving mechanism 17 and a support end cover 28, the roller brush 15 is clamped and installed between the support end cover 28 and the driving mechanism 17, and the outer ring of the bearing 26 on the roller brush 15 is matched and supported in the positioning ring body 37 set on the support end cover 28, the spline head 36 set on the driving mechanism 17 is matched and extended into the spline groove 27 at the end of the roller brush 15 and drives the roller brush 15 to rotate synchronously, and an arc-shaped transparent guard plate 191 located above the roller brush 15 is fixed on the upper shell monomer 19.

[0045] Reference Figure 10-13 As shown, the drive mechanism 17 includes a drive motor 29, a support shell 30 and a speed change assembly installed in the support shell 30, the speed change assembly includes a drive pulley 31, an intermediate pulley 32 and a driven pulley 33 rotatably installed in the support shell 30, the support shell 30 is clamped and fixed between the upper shell monomer 19 and the lower shell monomer 20, the drive pulley 31 is coaxially fixed with the output shaft of the drive motor 29, and the drive motor 29 is fixed to the outside of the support shell 30, the drive pulley 31 is coaxially fixed with the intermediate pulley 32 and the driven pulley 33 A first synchronous belt 34 is connected between the pulleys 32 to form a belt drive, and a second synchronous belt 35 is connected between the driven pulley 33 and the intermediate pulley 32 to form a belt drive. A spline head 36 is coaxially fixed to the driven pulley 33 and is located outside the support shell 30 and extends toward the support end cover 28. The spline head 36 matches and extends into the spline groove 27 at the end of the roller brush 15. The driving motor 29 drives the spline head 36 to rotate through the first synchronous belt 34 and the second synchronous belt 35, and the spline head 36 drives the roller brush 15 to rotate synchronously.

[0046] Reference Figure 10-13 As shown, a positioning ring body 37 extending toward the spline head 36 is fixed on the side of the support end cover 28, and a mounting body 40 is also fixed on the support end cover 28. The mounting body 40 is provided with a plurality of positioning pins 38 and positioning fasteners 39 that are simultaneously retracted. The positioning fasteners 39 and the positioning pins 38 are matched and extended into and positioned in the buckle grooves 391 and the positioning grooves 42 provided on the decorative cover 41, respectively, so as to fix the mounting body 40 on the decorative cover 41, and the interior of the mounting body 40 is provided with a driving positioning pin 38 and a positioning fastener 39. The driving member 43 moves synchronously with the fastener 39, the positioning fastener 39 is fixed on the driving member 43, the inner end of the positioning pin 38 is provided with a supporting spring 381, and the driving member 43 drives the positioning pin 38 to retract inward through the inclined surface. The driving member 43 is manually pulled to make the positioning pin 38 and the positioning fastener 39 move synchronously and disengage from the corresponding positioning groove 42 and the buckle groove 391 respectively, so as to separate the mounting body 40 from the decorative cover 41, and the decorative cover 41 is clamped and fixed between the upper shell monomer 19 and the lower shell monomer 20.

[0047] Reference Figure 10-13 , Fig.18As shown, the negative pressure suction hole 44 is arranged on the lower shell monomer 20, and the two sides of the outer end of the negative pressure suction hole 44 are smoothly connected with a trumpet-shaped guide channel 45, the width covered by the guide channel 45 corresponds to the length of the roller brush 15, and the rotating roller brush 15 rolls the sewage and garbage on the surface to be cleaned into the guide channel 45, and the sewage and garbage conveniently enter the negative pressure suction hole 44 through the guide channel 45, and the lower edge of the guide channel 45 is provided with a scraper strip 46 extending obliquely downward, and a flat suction port 461 is provided between the scraper strip 46 and the roller brush 15, and the scraper strip 46 is close to the ground, and the rotating roller brush 15 rolls the sewage and garbage into the guide channel 45 through the flat suction port 461, and the upper part of the guide channel 45 is provided with a long strip diversion component horizontally fixed on the lower shell monomer 20, and the length of the diversion component corresponds to the length of the roller brush 15, and the diversion component includes a long strip diversion body 47, a cover plate 48 and The water inlet joint 49, the diverter body 47 is fixed on the lower shell monomer 20, and the brush body 24 of the roller brush 15 is in contact with the lower edge of the diverter body 47, and the garbage on the roller brush 15 is scraped off through the lower edge of the diverter body 47 to improve the cleaning efficiency of the roller brush 15. The diverter body 47 is provided with a plurality of water spray holes 50 distributed along its length direction, and the water outlet end of the water spray hole 50 is provided with a trumpet-shaped guide surface 51 arranged directly facing the roller brush 15. A vertical diverter block 52 is provided at the port of the water outlet end of the water spray hole 50. The water spray hole 50, the guide surface 51 and the diverter block 52 constitute the nozzle, which increases the area of ​​the liquid sprayed onto the roller brush 15. The water inlet end of the water spray hole 50 is connected to the diverter chamber 53, and the diverter chamber 53 is arranged on the diverter body 47 and sealed by the cover plate 48 to form a sealed chamber. A water inlet joint 49 connected to the diverter chamber 53 is fixed on the cover plate 48.

[0048] Reference Figure 8As shown, the water delivery pipeline is arranged in the space between the upper shell monomer 19 and the lower shell monomer 20, and the water delivery pipeline includes a water pump 54, a water inlet main pipe 55, a drainage main pipe 56, a multi-way joint 57 and a plurality of water inlet branches 58, and the two ends of the water inlet branches 58 are respectively connected to the inner cavity of the switching valve 59 and the multi-way joint 57, and the switching valve 59 is connected to the bottom of the clean water tank 18, and the water in the clean water tank 18 passes through the inner cavity of the switching valve 59, the water inlet branch 58, the multi-way joint 57, the water inlet main pipe 55, the drainage main pipe 56, the multi-way joint 57, the water inlet main pipe 55, the drainage main pipe 56, the multi-way joint 57, the water inlet main pipe 55, the drainage main pipe 56, the multi-way joint 57, the water inlet branch 58 ... multi-way joint 57, the water inlet branch 58, the drainage main pipe 56, the multi-way joint 57, the multi-way joint 57, the water inlet branch 58, the drainage main pipe 56, the multi-way joint 57, the multi-way joint 57, the multi-way joint 57, the multi-way joint 6 and the water inlet connector 49, and finally enters the diversion chamber 53 of the diversion body 47, and then the liquid is sprayed onto the roller brush 15 through the nozzle, the two ends of the water inlet main pipe 55 are respectively connected to the water inlet of the water pump 54 and the multi-way connector 57, the two ends of the drainage main pipe 56 are respectively connected to the drainage outlet of the water pump 54 and the water inlet connector 49, the water inlet main pipe 55 is connected in series with an electronic water valve 60 for controlling the on-off of the water circuit, the electronic water valve 60, the water pump 54 and the transfer valve 59 are all fixed on the upper surface of the lower shell monomer 20.

[0049] Reference Figure 14-17As shown, the bottom of the clean water tank 18 is provided with a plurality of drainage holes 61 and a water injection port 181, and the top of the clean water tank 18 is provided with a duckbill valve 62 for air to enter the box body. During the drainage process of the clean water tank 18, negative pressure will be generated in the box body, and the outside air can enter the clean water tank 18 through the duckbill valve 62 to balance the internal and external pressures of the box body, and the liquid in the clean water tank 18 will not flow out of the box body through the duckbill valve 62. A sealing cover 182 for sealing the water injection port 181 is screwed on, and a water purifier 183 located inside the clean water tank 18 is connected to the sealing cover 182 through a thread. The water purifier 183 can be taken out from the water inlet 181 along with the sealing cover 182. The water purifier 183 is filled with alkaline cation exchange resin to neutralize the acidity of the clean water and prevent scaling of the inner wall of the clean water tank 18. A drain valve 63 is correspondingly installed on the drain hole 61. The drain valve 63 includes a valve body 64 and a valve core 65. The valve body 64 is fixed inside the clean water tank 18 and the top of the valve body 64 is provided with a hollow structure for water to pass through. A valve stem 66 is fixed on the valve core 65 and slides vertically upward through the valve body 64. The valve stem 66 is provided with a valve core 65 that seals and presses the corresponding valve core 65 tightly against the corresponding drain hole. The compression spring 67 in 61 is used to automatically seal the drain hole 61. The outside of the clean water tank 18 is provided with a plurality of clamping feet 68 and a telescopic positioning head 69. The clamping feet 68 and the positioning head 69 match and extend into the clamping groove 70 provided on the upper shell monomer 19, so as to match and fix the clean water tank 18 in the concave surface 192 provided on the upper surface of the upper shell monomer 19. The positioning head 69 is manually pressed to disengage it from the corresponding clamping groove 70, and the clean water tank 18 can be removed from the corresponding concave surface 192. The structure of the positioning head 69 and the clamping feet 68 cooperating with the corresponding clamping groove 70 belongs to a technology well known to those skilled in the art. This will not be repeated here. The drain hole 61 at the bottom of the clean water tank 18 corresponds one-to-one to the transfer valve 59. The transfer valve 59 is provided with a push rod 71 which vertically penetrates the through hole at the bottom of the upper shell monomer 19. The push rod 71 pushes the corresponding valve core 65 upward to open the drain hole 61. The through hole at the bottom of the upper shell monomer 19 is provided with a flexible sealing pressure ring 72 which is sealed and clamped around the corresponding drain hole 61 and between the transfer valve 59. The drain hole 61 is sealed and connected to the inner cavity of the transfer valve 59. The liquid in the clean water tank 18 enters the corresponding connected water inlet branch 58 through the drain hole 61 and the cavity of the transfer valve 59.

[0050] Reference Figure 1-Figure 4As shown, the negative pressure pipeline includes a first air duct 73 and a connecting hose 74, the first air duct 73 is clamped and fixed between the upper shell monomer 19 and the lower shell monomer 20, the two ends of the first air duct 73 are respectively sealed and connected with the negative pressure suction hole 44 and the corresponding ends of the connecting hose 74, the other end of the connecting hose 74 is sealed and connected to the lower end of the pipe joint 75, the pipe joint 75 is fixed inside the adapter body 76, the adapter body 76 is horizontally hinged at the rear end of the main shell, the lower end of the main body 11 is fixed to the outside of the adapter body 76, the lower end of the second air duct 77 arranged inside the main body 11 is sealed and connected to the upper end of the pipe joint 75, and the upper port of the second air duct 77 is connected with a flexible sealing ring 78.

[0051] Reference Figure 1-Figure 6As shown, the bottom and top of the sewage tank 13 are respectively provided with a positioning pad 79 and a telescopic bayonet 80, and the positioning pad 79 and the bayonet 80 are respectively matched and extended into the supporting groove 801 and the limiting groove 81 provided on the main body 11, so as to match and fix the sewage tank 13 in the mounting hole 82 provided on the main body 11. The bayonet 80 is manually pulled out of the corresponding limiting groove 81, and the sewage tank 13 can be removed from the corresponding mounting hole 82. The structure of the bayonet 80 cooperating with the limiting groove 81 belongs to a technology well known to those skilled in the art and will not be repeated here. A vertical check pipe 83 is fixed to the bottom surface of the water tank 13 to prevent the liquid entering the sewage tank 13 from flowing back. The lower end of the check pipe 83 passes through the bottom of the sewage tank 13. The sealing ring 78 is tightly sealed around the lower end of the check pipe 83. The check pipe 83 is sealed and connected with the second air duct 77. The upper end of the check pipe 83 is provided with a lateral opening 84 connected with the inside of the sewage tank 13. The lateral opening 84 is opposite to the flow partition 85 fixed on the top surface of the sewage tank 13, extending the air flow path so that the liquid carried in the air can enter and The wastewater is collected in the sewage tank 13 to reduce the amount of liquid entering the suction device 16. The top of the sewage tank 13 is also provided with an exhaust hole 86. The interior of the sewage tank 13 is also provided with a float 87 for blocking the exhaust hole 86. The float 87 is vertically slidably mounted on the oblong hole 90 of the fixing frame 89 through a guide block 88 arranged on its side. When the liquid in the sewage tank 13 is collected to a certain volume, the float 87 will automatically move upward under the buoyancy of the liquid and block the exhaust hole 86 of the sewage tank 13, so as to indirectly prompt the need to stop the vacuum cleaner and clean the sewage tank 13. The fixing frame 89 is fixed on the top surface inside the sewage tank 13, and an air intake window 91 is also provided on the side of the fixing frame 89, and air enters the exhaust device 16 through the air intake window 91 and the exhaust hole 86. The outer end of the exhaust hole 86 is also provided with a connecting tube 92 fixed on the top of the sewage tank 13, and a filter body 93 is provided in the connecting tube 92. Impurities and moisture carried in the air are filtered through the filter body 93 to prevent impurities and moisture from entering the exhaust device 16. A circle of sealing gaskets 94 is provided on the top edge of the connecting tube 92, and the sealing gaskets 94 are sealed and pressed around the air inlet of the exhaust device 16.

[0052] Reference Figure 1-Figure 6 As shown, the exhaust device 16 is arranged at the upper end of the main body 11, and the exhaust port 96 of the exhaust device is connected to the outside through the gap between the sewage tank 13 and the main body 11. A battery pack 14 is also installed on the main body 11. The battery pack 14 is detachably installed and is used to supply power for the normal operation of the entire vacuum cleaner. The operating handle 12 is fixed to the upper end of the main body 11.

[0053] The use process of the present invention:

[0054] Remove the clean water tank 18 from the floor brush component, remove the sealing cover 182 from the water inlet 181 of the clean water tank 18, add clean water or cleaning liquid into the clean water tank 18 through the water inlet 181, and then seal the water inlet 181 through the sealing cover 182, and then install the clean water tank 18 on the floor brush component accordingly. After the clean water tank 18 is installed, the top rod 71 on the transfer valve 59 overcomes the elastic force of the compression spring 67 to push up the valve core 65 on the drainage hole 61 of the clean water tank 18, thereby opening the drainage hole 61, and the inside of the clean water tank 18 is The liquid enters the inner cavity of the switching valve 59 and the corresponding water inlet manifold 58 through the drainage hole 61, the water pump 54 is started and the electronic water valve 60 is opened, and the drive motor 29 and the air extraction device 16 are started at the same time. The liquid in the clean water tank 18 is sequentially passed through the drainage hole 61, the inner cavity of the switching valve 59, the water inlet manifold 58, the multi-way joint 57, the water inlet main pipe 55, the water pump 54, the drainage main pipe 56 and the water inlet joint 49 by the action of the water pump 54, and the liquid is injected into the diversion chamber 53 of the diversion body 47. The liquid in the diversion chamber 53 is then The liquid is distributed to each nozzle, and the liquid is sprayed onto the entire roller brush 15 through the nozzle. At the same time, the driving motor 29 drives the spline head 36 to rotate through the first synchronous belt 34 and the second synchronous belt 35. The spline head 36 drives the roller brush 15 to rotate synchronously, and the entire vacuum cleaner is manually pushed to move on the surface to be cleaned. The roller brush 15 soaked in liquid rolls and scrubs the surface to be cleaned. The scraper strip 46 is close to the ground. During the rotation of the roller brush 15, the sewage and garbage on the surface to be cleaned are rolled into the guide channel 45 through the flat suction port 461. Under the action of the negative pressure generated by the air device 16, sewage and garbage enter the negative pressure suction hole 44 through the guide channel 45 in turn, and then enter the sewage tank 13 through the first air duct 73, the connecting hose 74, the second air duct 77 and the check pipe 83 in turn. The sewage and garbage will be collected in the sewage tank 13 under the action of their own weight, and the air will enter the air extraction device 16 through the air inlet window 91 and the exhaust hole 86, and finally be discharged to the outside atmosphere through the exhaust port 96 of the air extraction device and the gap between the sewage tank 13 and the main body 11.

[0055] The above-described embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art based on the present invention are within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A wet and dry vacuum cleaner with enhanced corner cleaning capability, characterized in that: include: A floor brush component, the floor brush component comprising a main housing, a clean water tank and a roller brush both mounted on the main housing; The roller brush is rotatably mounted at the front end of the main housing, a driving mechanism for driving the roller brush to rotate is mounted on the main housing, a negative pressure suction hole corresponding to the roller brush is provided on the main housing, and the rotating roller brush rolls the sewage and garbage on the surface to be cleaned to the negative pressure suction hole; A water delivery pipeline connected to the diversion assembly is provided at the bottom of the clean water tank, a water pump is connected in series to the water delivery pipeline, the diversion assembly is installed on the main housing, a plurality of nozzles arranged toward the roller brush are provided on the diversion assembly, the water pump pumps the water in the clean water tank to the diversion assembly through the water delivery pipeline, and the nozzle sprays the water entering the diversion assembly onto the roller brush; The fuselage parts include a main body, a sewage tank, an air extraction device and an operating handle all mounted on the main body; One end of the main body is connected to the rear end of the main shell, the sewage tank is a sealed box and a negative pressure pipeline is sealed between the interior of the box and the negative pressure suction hole, the air inlet of the air suction device is sealed and connected to the interior of the sewage tank, the operating handle and the main shell are respectively connected to the two ends of the main body, and the air suction device works and generates negative pressure to suck the sewage and garbage at the negative pressure suction hole into the sewage tank through the negative pressure pipeline; The main shell body comprises an upper shell monomer and a lower shell monomer which are matched and buckled and fixed together, the lower surface of the lower shell monomer is provided with a plurality of front rollers which are coaxially rotatably mounted, and the rear end of the main shell body is provided with a plurality of rear rollers which are coaxially rotatably mounted, and the roller brush comprises a cylindrical shaft cylinder and a brush body fixed on the outer circumferential surface of the shaft cylinder, both ends of the shaft cylinder are plugged with plugs fixed thereto, the outer end of one of the plugs is fixed with a bearing coaxial with the shaft cylinder, and the inner ring of the bearing is fixed to the corresponding plug, and the outer end of the other plug is provided with a spline groove, the two sides of the main shell body are respectively provided with a driving mechanism and a supporting end cover, the roller brush is clamped and installed between the supporting end cover and the driving mechanism, and the outer ring of the bearing on the roller brush is matched and supported in a positioning ring body provided on the supporting end cover, the spline head provided on the driving mechanism matches and extends into the spline groove of the end of the roller brush and drives the roller brush to rotate synchronously, and an arc-shaped transparent guard plate located above the roller brush is fixed on the upper shell monomer; The transmission mechanism comprises a driving motor, a supporting shell and a speed change assembly installed in the supporting shell, the speed change assembly comprises a driving pulley, an intermediate pulley and a driven pulley rotatably installed in the supporting shell, the supporting shell is clamped and fixed between the upper shell monomer and the lower shell monomer, the driving pulley is coaxially fixed with the output shaft of the driving motor, and the driving motor is fixed to the outside of the supporting shell, a first synchronous belt forming a belt transmission is connected between the driving pulley and the intermediate pulley, a second synchronous belt forming a belt transmission is connected between the driven pulley and the intermediate pulley, a spline head located outside the supporting shell and extending toward the supporting end cover is coaxially fixed on the driven pulley, the spline head matches and extends into the spline groove at the end of the roller brush, the driving motor drives the spline head to rotate through the first synchronous belt and the second synchronous belt, and the spline head drives the roller brush to rotate synchronously; A positioning ring body extending toward the spline head is fixed on the side of the support end cover, and a mounting body is also fixed on the support end cover, the mounting body is provided with a plurality of simultaneously retractable positioning pins and positioning fasteners, the positioning fasteners and positioning pins are respectively matched to extend into and positioned in the buckle groove and positioning groove provided on the decorative cover to fix the mounting body on the decorative cover, and a driving member for driving the positioning pin and the positioning fastener to move synchronously is provided inside the mounting body, the positioning fastener is fixed on the driving member, the inner end of the positioning pin is provided with a supporting spring, and the driving member drives the positioning pin to retract inwardly through an inclined surface, and the driving member is manually pulled so that the positioning pin and the positioning fastener move synchronously and respectively disengage from the corresponding positioning groove and buckle groove to separate the mounting body from the decorative cover, and the decorative cover is clamped and fixed between the upper shell monomer and the lower shell monomer.

2. A wet and dry vacuum cleaner with enhanced corner cleaning capability as claimed in claim 1, characterized in that: The negative pressure suction hole is arranged on the lower shell monomer, and both sides of the outer end of the negative pressure suction hole are smoothly connected with a trumpet-shaped guide channel, the width covered by the guide channel corresponds to the length of the roller brush, and the lower edge of the guide channel is provided with a scraper bar extending obliquely downward, and a flat suction port is provided between the scraper bar and the roller brush, and a long strip diversion component horizontally fixed to the lower shell monomer is provided above the guide channel, and the length of the diversion component corresponds to the length of the roller brush. The diversion component includes a long strip diversion body, a cover plate and a water inlet joint, and the diversion body is fixed on the The brush body of the roller brush is in contact with the lower edge of the diverter body, the diverter body is provided with a plurality of water spray holes distributed along its length direction, the water outlet end of the water spray hole is provided with a trumpet-shaped guide surface facing the roller brush, and a vertical diverter block is provided at the port of the water outlet end of the water spray hole, the water spray hole, the guide surface and the diverter block constitute the nozzle, the water inlet end of the water spray hole is connected with the diverter chamber, the diverter chamber is provided on the diverter body and is sealed by the cover plate to form a sealed chamber, and a water inlet joint connected with the diverter chamber is fixed on the cover plate.

3. A wet and dry vacuum cleaner with enhanced corner cleaning capability as claimed in claim 2, characterized in that: The water supply pipeline is arranged in the space between the upper shell monomer and the lower shell monomer, and the water supply pipeline includes a water pump, a water inlet main pipe, a drainage main pipe, a multi-way joint and a plurality of water inlet branches. The two ends of the water inlet branch are respectively connected to the inner cavity of the switching valve and the multi-way joint, and the switching valve is connected to the bottom of the clean water tank. The two ends of the water inlet main pipe are respectively connected to the water inlet of the water pump and the multi-way joint, and the two ends of the drainage main pipe are respectively connected to the drainage port of the water pump and the water inlet joint. The water inlet main pipe is connected in series with an electronic water valve for controlling the on-off of the water circuit, and the electronic water valve, water pump and switching valve are all fixed on the upper surface of the lower shell monomer.

4. A wet and dry vacuum cleaner with enhanced corner cleaning capability as claimed in claim 3, characterized in that: The bottom of the clean water tank is provided with a plurality of drainage holes and water injection ports, the top of the clean water tank is provided with a duckbill valve for air to enter the box body, a sealing cover is screwed on the water injection port to seal it, the sealing cover is threadedly connected with a water purifier located inside the clean water tank, a drainage valve is correspondingly installed on the drainage hole, the drainage valve comprises a valve body and a valve core, the valve body is fixed inside the clean water tank and a hollow structure for water to pass through is provided on the top of the valve body, a valve stem that slides vertically upward and penetrates the valve body is fixed on the valve core, and a compression spring that compresses the corresponding valve core seal in the corresponding drainage hole is mounted on the valve stem. Spring, the outside of the clean water tank is provided with a plurality of clamping feet and telescopic positioning heads, the clamping feet and the positioning heads match and extend into the clamping grooves provided on the upper shell monomer, so as to match and fix the clean water tank in the concave surface provided on the upper surface of the upper shell monomer, and the drainage hole at the bottom of the clean water tank corresponds to the transfer valve one by one, and the transfer valve is provided with a push rod which vertically penetrates the through hole at the bottom of the upper shell monomer, the push rod lifts the corresponding valve core upward to open the drainage hole, and the through hole at the bottom of the upper shell monomer is provided with a flexible sealing pressure ring which is sealed and clamped around the corresponding drainage hole and the transfer valve, and the drainage hole is sealed and connected with the inner cavity of the transfer valve.

5. A wet and dry vacuum cleaner with enhanced corner cleaning capability as claimed in claim 1, characterized in that: The negative pressure pipeline includes a first air duct and a connecting hose, the first air duct is clamped and fixed between the upper shell monomer and the lower shell monomer, the two ends of the first air duct are respectively sealed and connected with the negative pressure suction hole and the corresponding ends of the connecting hose, the other end of the connecting hose is sealed and connected to the lower end of the pipe joint, the pipe joint is fixed inside the adapter body, the adapter body is horizontally hinged at the rear end of the main shell body, the lower end of the main body is fixed to the outside of the adapter body, the lower end of the second air duct arranged inside the main body is sealed and connected to the upper end of the pipe joint, and the upper port of the second air duct is connected with a flexible sealing ring.

6. A wet and dry vacuum cleaner with enhanced corner cleaning capability as claimed in claim 5, characterized in that: The bottom and top of the sewage tank are respectively provided with a positioning pad and a telescopic bayonet, and the positioning pad and the bayonet are respectively matched and extended into the supporting groove and the limiting groove provided on the main body, so as to match and fix the sewage tank in the mounting hole provided on the main body, and a vertical check pipe is fixed to the bottom surface of the interior of the sewage tank, and the lower port of the check pipe passes through the bottom of the sewage tank, and the sealing ring is sealed and pressed around the lower port of the check pipe, and the check pipe is sealed and connected with the second air duct, and the upper end of the check pipe is provided with a lateral opening connected with the interior of the sewage tank, and the lateral opening is directly opposite to the bottom surface of the sewage tank. A flow partition is fixed on the top surface of the sewage tank, an exhaust hole is also provided on the top of the sewage tank, a float for blocking the exhaust hole is also provided inside the sewage tank, the float is vertically slidably installed on the oblong hole of the fixing frame through a guide block arranged on the side of the float, the fixing frame is fixed on the top surface of the sewage tank, an air intake window is also provided on the side of the fixing frame, the outer end of the exhaust hole is also provided with a connecting tube fixed on the top of the sewage tank, a filter body is arranged in the connecting tube, a circle of sealing gasket is provided on the top edge of the connecting tube, and the sealing gasket is sealed and pressed around the air inlet of the air extraction device.

7. A wet and dry vacuum cleaner with enhanced corner cleaning capability as claimed in claim 6, characterized in that: The suction device is arranged at the upper end of the main body, and the exhaust port of the suction device is connected to the outside through the gap between the sewage tank and the main body. A battery pack is also installed on the main body, and the operating handle is fixed on the upper end of the main body.

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