CN111671364A

CN111671364A - Floor cleaning machine

Info

Publication number: CN111671364A
Application number: CN202010556979.6A
Authority: CN
Inventors: 梁伟成
Original assignee: Guangzhou Yingjie Electric Appliance Co ltd
Current assignee: Guangzhou Yingjie Electric Appliance Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2020-09-18

Abstract

The invention relates to a floor washing machine, which comprises a cleaning host and a handle rod, wherein the handle rod is connected with the cleaning host, a sewage collecting mechanism is arranged on the handle rod, the sewage collecting mechanism comprises a sewage tank, a vacuum pump and an anti-backflow component, and the vacuum pump is used for vacuumizing the inner cavity of the sewage tank; a sewage inlet of the sewage tank is communicated with a sewage outlet of the cleaning host machine through a pipeline; the backflow preventing component comprises a pipe body and at least 2 floating balls, the pipe cavity of the pipe body is of a cone-shaped structure with an upper opening and a lower closing, a side hole is formed in the pipe body, the pipe body is installed in the sewage tank and is in sealing connection with a through hole of the sewage tank, and the cavity opening of the pipe body is communicated with an air suction port of the vacuum pump through a sealing cavity; the whole height of the floating ball after the tube cavities of the tube bodies are overlapped together is lower than that of the side hole, and the diameter of the floating ball is larger than the aperture of the cavity opening of the tube cavity of the tube body. The invention has the advantages of simple structure, scientific design, good effect of preventing sewage from flowing backwards, capability of avoiding the damage of the vacuum pump due to water collision, long service life and the like.

Description

Floor cleaning machine

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to a floor washing machine.

Background

Currently, the structures on portable floor washers on the market are such that: the cleaning device comprises a cleaning host and a handle rod, wherein the cleaning host is connected with the handle rod through a universal joint, and a water purification tank, a sewage tank, a vacuum pump and other devices are arranged on the handle rod. The sewage tank is used for collecting sewage generated by the cleaning main machine in the cleaning process, and the sewage tank pumps air in the tank through the vacuum pump in the using process so as to form negative pressure in the sewage tank and suck the sewage generated by the cleaning main machine in the cleaning process. In the in-process of in-service use, because cleaner rocks the handle bar or puts the handle bar and makes handle bar and washing the host computer carry out the buckle, install the sewage of the sewage incasement on the handle bar and flow into the vacuum pump very easily, can lead to the vacuum pump to burn out like this, damage floor cleaning machine. Because the problem that the vacuum pump is burnt out due to the backflow of sewage exists in the existing floor cleaning machine when the existing floor cleaning machine is used, the existing portable floor cleaning machine is urgently needed to be improved.

Disclosure of Invention

The invention aims to provide a floor washing machine which has the advantages of simple structure, scientific design, good effect of preventing sewage from flowing backwards, capability of avoiding the damage of a vacuum pump due to water collision, long service life and the like.

The technical scheme of the invention is realized as follows: a floor washing machine comprises a cleaning host and a handle rod, wherein the handle rod is connected with the cleaning host, a sewage discharge outlet is formed in the cleaning host, a sewage collecting mechanism is mounted on the handle rod and comprises a sewage tank and a vacuum pump, and the vacuum pump is used for vacuumizing an inner cavity of the sewage tank; a sewage inlet arranged on the sewage tank is communicated with a sewage outlet through a pipeline; it is characterized in that the sewage collecting mechanism also comprises a backflow preventing component; the anti-backflow component comprises a pipe body and at least 2 floating balls, a pipe cavity of the pipe body is of a structure with an upper opening and a lower closing, the pipe cavity of the pipe body is also of a cone-shaped structure with a small upper part and a large lower part, a side hole communicated with the pipe cavity of the pipe body is formed in the pipe body, the side hole extends from the middle of the pipe body to the bottom of the pipe cavity, the pipe body is installed in the sewage tank, the outer circumferential surface of the pipe body is connected with the through hole of the sewage tank in a sealing mode, and the opening of the pipe body is communicated with an air suction port of the vacuum pump through a sealing cavity; the floating balls are vertically arranged and overlapped in the tube cavity of the tube body, the overall height of the overlapped floating balls is lower than that of the side holes, and the diameter of each floating ball is larger than the aperture of the cavity opening of the tube cavity of the tube body.

Further, prevent flowing backward the subassembly still include one refute the takeover, be formed with on the handle bar the seal chamber, refute the one end and the seal chamber intercommunication of takeover, refute the other end of takeover and the via hole place fixed connection on the sewage case, the body with refute the union coupling and be in the same place, the accent of the lumen of this body is through refuting takeover and seal chamber intercommunication.

Furthermore, an included angle alpha is formed between a generatrix of the tube cavity of the tube body and the axis of the handle rod, and the included angle alpha is within the range of 10-20 degrees.

Still further, the tube body comprises a cylindrical part and a bottom plate part, wherein the bottom plate part is fixed on a lower tube opening of the cylindrical part, so that the cylindrical part and the bottom plate part are connected to form the tube body with a tube cavity of an upper opening and a lower closed structure; the cylindrical part is provided with a plurality of side holes distributed around the axis of the cylindrical part, and a mesh structure is further distributed in each side hole.

In order to avoid overhigh temperature of a circuit board for controlling the vacuum pump to work, a gas transition shell is arranged between the vacuum pump and the sealing cavity, a transition gas cavity is formed in the gas transition shell, and a gas suction port of the vacuum pump is communicated with the transition gas cavity; the sealing cavity is also communicated with the transition air cavity; the outer surface of the gas transition shell is provided with a circuit board for controlling the vacuum pump, and a heat dissipation plate connected with the circuit board is arranged in the transition air cavity.

In order to filter the air pumped out of the sewage tank by the vacuum pump, the invention also comprises a lower mounting piece, wherein the lower mounting piece is provided with a lower sleeve part and a groove shell part, and the lower mounting piece is sleeved and fixed on the handle rod through the lower sleeve part; a mounting cavity and an embedding cavity are formed on the groove shell part of the lower mounting part, and the mounting cavity is communicated with the embedding cavity; the vacuum pump is installed in the installation cavity, the air outlet of the vacuum pump is arranged by blowing towards the direction of the embedded cavity, the embedded cavity is internally provided with a filter piece, and the orifice of the embedded cavity is also detachably provided with a face cover with an air hole.

In order to enable the structure of the sewage tank arranged on the handle rod to be more reasonable, the sewage tank also comprises an upper mounting piece, a mounting plate and a bottom shell, wherein an embedding cavity is formed on the bottom shell, the bottom shell is sleeved on the lower mounting piece from the lower part of the lower mounting piece through the embedding cavity, the bottom shell is also fixed with the lower mounting piece together, and a protruding hole for the surface cover on the lower mounting piece to penetrate out is formed on the bottom shell; the mounting plate is sleeved on the handle rod through the sleeving hole, and the mounting plate cover is arranged on the opening of the nesting cavity of the bottom shell and fixed with the bottom shell; a first concave position is formed on the top surface of the mounting plate, and the bottom of the sewage tank is embedded in the first concave position; the upper mounting part is provided with an upper sleeve part and a clamping block part, and the upper mounting part is sleeved and fixed on the handle rod through the upper sleeve part; the upper part of the sewage tank is provided with an embedded concave position, the embedded concave position of the sewage tank and the clamping block part of the upper mounting part are embedded together, the sewage tank is provided with a rotating part, and the rotating part rotates to enable the clamping block part of the upper mounting part to be clamped between the rotating part and the embedded concave position.

In order to ensure that the structure of the water purifying tank arranged on the handle rod is more reasonable, the water purifying tank also comprises a water purifying tank, wherein a second concave position is formed on the mounting plate, and the bottom of the water purifying tank is embedded in the second concave position; a clamping head part is formed on the upper mounting part, 2 sliding grooves are formed on the top surface of the clamping head part, and a sliding block is installed between the 2 sliding grooves in a sliding mode; the side surface of the water purification tank is provided with a clamping concave position, the clamping concave position and the clamping head part of the upper mounting piece are mutually embedded, clamped and clamped together, a clamping part is formed in the clamping concave position, and one end of the sliding block slidably extends out of the clamping head part of the upper mounting piece and is tightly pressed with the top surface of the clamping part of the water purification tank.

In order to conveniently detach the water purifying tank for supplementing purified water, a one-way valve is further mounted on the bottom surface of the water purifying tank, a valve groove is further formed in a second concave position of the mounting plate, the one-way valve of the water purifying tank is embedded in the valve groove, a through valve bolt which is matched with the one-way valve is arranged in the valve groove, a water outlet which is communicated with the valve groove is further formed in the mounting plate, an electromagnetic valve is mounted on the bottom surface of the mounting plate, the water inlet end of the electromagnetic valve is communicated with the water outlet, the water outlet end of the electromagnetic valve is connected with a purified water conveying pipe, and the purified water conveying pipe penetrates out; the cleaning main machine comprises a machine base, a water pump and 2 floor brushing mechanisms, wherein the top surface of the machine base is connected with the bottom end of a handle rod through a universal joint mechanism, and a water outlet hole for communicating the top surface with the bottom surface of the machine base is formed in the machine base; the water pump is arranged on the base, the water inlet end of the water pump is communicated with the purified water conveying pipe, and the water outlet end of the water pump is communicated with the water outlet hole in the base through a water pipe; 2 mechanism of brushing ground is about being distributed and is located the rear of apopore, and each mechanism of brushing ground includes motor, connecting piece and brush dish respectively, and the motor is installed on the top surface of frame, and the top surface that the pivot of motor passed the frame stretches out to the bottom surface of frame on, and the connecting piece is in the below of frame, and the connecting piece is fixed in the pivot of motor, the brush dish is fixed on the connecting piece through hand screw.

In order to collect sewage conveniently, the cleaning host machine further comprises a water scraping rake, and the water scraping rake comprises a mounting frame, a mounting bar, a front water scraping rubber strip, a rear water scraping rubber strip and 2 mounting blocks; wherein:

the mounting bar is made into a crescent structure, so that a front arc surface and a rear arc surface are formed on the mounting bar, the front arc surface is a concave surface of the mounting bar, a plurality of front clamping jaws are formed on the front arc surface, and a plurality of rear clamping jaws are formed on the rear arc surface;

a plurality of front clamping holes are formed in the front wiping rubber strip, the front clamping holes in the front wiping rubber strip correspond to the front claws on the mounting strip one by one, the front wiping rubber strip is matched and clamped with the front claws of the mounting strip through the front clamping holes and is hung on the front arc surface of the mounting strip, and a gap for sewage to enter is formed in the bottom edge of the front wiping rubber strip;

a plurality of rear clamping holes are formed in the rear wiping rubber strip, the rear clamping holes in the rear wiping rubber strip correspond to the rear clamping claws in the mounting strip one by one, the rear wiping rubber strip is hung on the rear arc surface of the mounting strip through the rear clamping holes in matched clamping with the rear clamping claws in the mounting strip, and two ends of the rear wiping rubber strip and two ends of the front wiping rubber strip are correspondingly extruded to enclose a sewage collection area;

the mounting bar is also provided with the sewage draining outlet which is communicated with the top surface of the mounting bar and the sewage collecting area;

an embedded groove is formed on the mounting rack, a plurality of front nesting concave positions which are in one-to-one correspondence with the positions of the front claws on the mounting strip are formed on the front wall surface of the embedded groove, and a plurality of rear nesting concave positions which are in one-to-one correspondence with the positions of the rear claws on the mounting strip are formed on the rear wall surface of the embedded groove;

the mounting strip is embedded in the embedded groove of the mounting frame, a front embedded concave position of the mounting frame is embedded with front claws on the mounting strip in a one-to-one correspondence manner, so that the front water wiping rubber strip is limited between the front wall surface of the embedded groove of the mounting frame and the front arc surface of the mounting strip, a rear embedded concave position on the mounting frame is embedded with rear claws on the mounting strip in a one-to-one correspondence manner, so that the rear water wiping rubber strip is limited between the rear wall surface of the embedded groove of the mounting frame and the rear arc surface of the mounting strip, at least 2 screw parts penetrating through the mounting frame are formed on the mounting strip, and hand nuts are screwed on the screw parts respectively so as to fix the mounting strip and the mounting frame together;

each installation piece is formed with the rotation portion of fixed plate portion and cylinder form respectively, and the rotation portion of each installation piece rotationally installs respectively on the mounting bracket, and 2 installation pieces are bilateral symmetry and set up in the both sides of mounting bracket, and the axis of the rotation portion of each installation piece all is parallel with the horizontal plane, and the fixed plate portion of each installation piece is together fixed with the cleaning host computer through hand screw respectively.

The invention has the beneficial effects that: (1) according to the invention, the backflow preventing assembly consisting of the pipe body and at least 2 floating balls is adopted, the pipe cavity of the pipe body is also made into a cone shape with a small upper part and a large lower part, and the pipe body is provided with a side hole extending from the middle part to the bottom of the cavity; when the vacuum pump is used for vacuumizing the sewage tank, air in the sewage tank enters the sealed cavity from the side hole of the pipe body, so that sewage entering the sewage tank can not be taken away, the height of the side hole is higher than the overall height of the overlapped floating balls, the floating balls can not influence the air pumping out of the sewage tank when the vacuum pump is used for vacuumizing, and gas can not drive the floating balls to block the cavity opening of the pipe cavity of the pipe body during vacuumizing; when a cleaner lays the handle lever, and sewage in the sewage tank touches the floating ball near the bottom of the pipe cavity of the pipe body, the floating ball near the bottom of the pipe cavity can push the floating ball at the top end to quickly move up along the wall of the pipe cavity of the conical pipe cavity to plug the mouth of the pipe cavity of the pipe body, so that the sewage is effectively prevented from flowing backwards into the sealing cavity and flowing to the vacuum pump.

(2) The design that the bus of the tube cavity of the tube body and the axis of the handle rod form an included angle alpha enables the acting force of sewage in the sewage tank pushing the floating ball to be almost completely converted into the power of the floating ball moving along the wall of the tube cavity of the tube body in the swinging process of the handle rod, so that the floating ball at a high position can block the tube opening of the tube cavity of the tube body more quickly, and the backflow preventing effect of the invention is better.

(3) A gas transition shell is arranged between a vacuum pump and a sealing cavity, a circuit board for controlling the vacuum pump is arranged on the outer surface of the gas transition shell, and a heat dissipation plate connected with the circuit board is arranged in a transition gas cavity of the gas transition shell; by the design, heat generated by the circuit board is transmitted to the heat dissipation plate in the using process, and the gas passes through the transition gas cavity of the gas transition shell in the process of vacuumizing the sewage tank by the vacuum pump, so that the heat dissipation plate can be cooled by the gas pumped out of the sewage tank by the vacuum pump, the temperature of the circuit board of the vacuum pump is controlled to be timely reduced, and the service life of the circuit board is greatly prolonged.

(4) When the vacuum pump is used, the gas blown out from the gas outlet of the vacuum pump passes through the filter element and then is blown out, so that the design can filter the smell in the sewage tank and reduce the noise when the vacuum pump is used; in addition, a face cover with air holes is detachably arranged on the orifice of the embedding cavity for installing the filter element, so that the filter element is convenient to replace after being soiled.

(5) The water purifying tank is provided with the one-way valve, and the water inlet end of the water purifying tank is communicated with the water inlet end of the water pump through the through valve bolt, the electromagnetic valve and the purified water conveying pipe which are arranged on the mounting plate when the water purifying tank is used.

(6) The mounting strip of the water scraping rake is provided with the front water scraping rubber strip and the rear water scraping rubber strip by matching the clamping claws and the clamping holes, the mounting strip is fixed on the mounting frame by hand-screwed nuts, and the mounting block arranged on the mounting frame is fixed on the cleaning host machine by hand-screwed screws.

Drawings

Fig. 1 is a schematic front view of the structure of embodiment 1.

3 fig. 32 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 at 3 a 3- 3 a 3 in 3 fig. 31 3. 3

Fig. 3 is a schematic cross-sectional view at the position B-B in fig. 1.

Fig. 4 is a schematic structural view of the wastewater tank in embodiment 1.

Fig. 5 is a schematic perspective view of embodiment 1.

Fig. 6 is a schematic structural view of the brush tray of embodiment 1 after being removed.

Fig. 7 is a schematic view of a structure for attaching and detaching the wiper rake in embodiment 1.

Fig. 8 is a schematic structural view of the mount according to embodiment 1.

Fig. 9 is a second schematic perspective view of the embodiment 1.

Fig. 10 is an enlarged schematic view of a portion C in fig. 9.

Fig. 11 is a schematic structural view of a mounting board in embodiment 1.

Fig. 12 is a schematic structural view of the fresh water tank in embodiment 1.

Fig. 13 is a schematic view of a connection structure of the tube body and the handle bar according to embodiment 2.

Description of reference numerals: 1, cleaning a host; 11-a sewage draining outlet; 2-a handle bar; 21-sealing the cavity; 22-lapel; 3-a sewage collection mechanism; 4-a sewage tank; 41-sewage inlet; 42-via holes; 43-embedding concave positions; 44-a box body; 45-box cover; 46-hand screw; 47-a guide tube; 5-a vacuum pump; 51-a circuit board; 52-a heat sink; 6-backflow prevention component; 61-a tube body; 611-side holes; 612-a cylinder; 613-floor member; 62-floating ball; 63-refuting the connecting pipe; 64-a gas transition shell; 641-transition air cavity; 7-a lower mount; 71-lower sleeve part; 72-a sump portion; 73-mounting cavity; 74-a nesting cavity; 9-a filter element; 10-face cover; 20-an upper mount; 201-an upper sleeve portion; 202-a fixture block part; 203-a card head portion; 204-a slide block; 30-mounting a plate; 301-first pit; 302-second pit; 303-valve spool; 304-way valve latch; 305-a water outlet; 306-a solenoid valve; 307-sleeving holes; 40-a bottom shell; 401-nested cavities; 402-an extraction aperture; 50-a rotating member; 60-a water purifying tank; 601-clamping concave position; 602-a card part; 603-a one-way valve; 70-a purified water delivery pipe; 80-a machine base; 801-water outlet; 802-a floor brushing mechanism; 803-a motor; 804-a connector; 805-brushing the disc; 806-thumbscrew; 90-scraping water rake; 901-mounting frame; 9011-embedding groove; 9012-front nesting concave; 9013-nesting a concave position; 9014-sewage outlet 902-mounting bar; 9021-front arc surface; 9022-rear arc surface; 9023-front claw; 9024-rear claw; 9025-stud portion; 903-wiping rubber strips in front; 9031-front clamping hole; 9032-gap; 904-wiping rubber strips behind; 9041-rear clamping hole; 905-a mounting block; 9051-fixing plate portion; 9052-rotating part; 906-hand screw nut; 907-hand screw;

100-a tube body; 200-handle bar.

Detailed Description

Example 1

As shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 6, the present embodiment is a floor washing machine, which includes a washing main machine 1 and a handle bar 2, wherein the handle bar 2 is connected to the washing main machine 1, a sewage discharge outlet 11 is provided on the washing main machine 1, a sewage collection mechanism 3 is installed on the handle bar 2, the sewage collection mechanism 3 includes a sewage tank 4 and a vacuum pump 5, and the vacuum pump 5 is used for vacuumizing an inner cavity of the sewage tank 4; a sewage inlet 41 arranged on the sewage tank 4 is communicated with the sewage outlet 11 through a pipeline; the sewage collecting mechanism 3 also comprises an anti-backflow component 6; a through hole 42 is formed on the sewage tank 4, the backflow prevention assembly 6 comprises a

pipe body

61 and 2 floating balls 62, the tube cavity of the tube body 61 is of a structure with an upper opening and a lower closing, the tube cavity of the tube body 61 is also of a cone-shaped structure with a small upper part and a big lower part, a side hole 611 communicated with the tube cavity is formed on the tube body 61, the side hole 611 is extended from the middle of the pipe body 61 to the bottom of the pipe cavity, the pipe body 61 is installed in the wastewater tank 4, the outer circumferential surface of the pipe body 61 is hermetically connected with the through hole 42 of the wastewater tank 4, the opening of the pipe body 61 is communicated with the suction port of the vacuum pump 5 through a sealed chamber 21, a guide pipe 47 is connected to the outlet of the wastewater inlet 41, the pipe orifice of the guide pipe 47 faces the direction of the bottom of the sewage tank 4, and the flow direction of the sewage flowing out of the guide pipe 47 is opposite to the air suction direction of the vacuum pump 5 in the sewage tank 4, so that the sewage is prevented from being taken away by the vacuum pump 5 in work; the floating balls 62 are vertically arranged and overlapped in the tube cavity of the tube body 61, the floating balls 62 are specifically arranged and overlapped together along a bus of the tube cavity of the tube body 61, the overall height after the floating balls 62 are overlapped together is lower than the height of the side hole 611, the diameter of the floating balls 62 is larger than the aperture of the cavity opening of the tube cavity of the tube body 61, an annular flange which is bent inwards is formed at the tube opening of the tube body 61, the annular flange surrounds the cavity opening of the tube cavity, and the floating balls 62 are matched with the cavity opening of the tube cavity of the tube body 61 instead of the tube cavity wall of the tube body 61 when in use, so that the floating balls 62 cannot be squeezed by the tube cavity wall of the tube body 61 and clamped in the tube body 61 when moving under the action of sewage, and the floating balls 62 cannot block an air suction channel of the vacuum pump 5 in the working process of. Through the design, when the vacuum pump 5 vacuumizes the sewage tank 4, air in the sewage tank 4 enters the sealed cavity 21 from the side hole 611 of the pipe body 61, so that sewage entering the sewage tank 4 cannot be taken away, the height of the side hole 611 is higher than the overall height of the overlapped floating balls 62, so that when the vacuum pump 5 vacuumizes, the floating balls 62 cannot influence the air in the sewage tank 4 to be drawn out, and gas cannot drive the floating balls 62 to block the cavity opening of the pipe cavity of the pipe body 61 in the vacuumizing process; and when the washing workman puts the in-process of level handle pole 2, when sewage in the sewage case 4 touches the floater 62 near the lumen cavity bottom of body 61, the floater 62 near the cavity bottom can promote the floater 62 at the top end to move up along the lumen wall of the cone-shaped lumen fast and plug the accent of the lumen of body 61, prevent effectively that sewage from flowing backward and entering sealed chamber 21 and flowing to vacuum pump 5, make this floor cleaning machine have simple structure, the design science, it is good to prevent that sewage from flowing backward, can avoid vacuum pump 5 to bump advantages such as water damage and long service life.

In order to make the structure of the backflow preventing assembly 6 more reasonable and the installation more convenient, as shown in fig. 1, fig. 2 and fig. 4, the backflow preventing assembly 6 further comprises a connection pipe 63, the connection pipe 63 is a bent pipe with a right-angle shape, the sealing cavity 21 is formed on the handle rod 2, one end of the connection pipe 63 is communicated with the sealing cavity 21, specifically, a connection joint 22 communicated with the sealing cavity 21 is installed on the handle rod 2, one end of the connection pipe 63 is mutually sleeved and communicated with the connection joint 22, the connection mode that the connection pipe 63 is mutually sleeved and communicated with the connection joint 22 is convenient for detaching the sewage tank 4 together with the backflow preventing assembly 6 from the handle rod 2 when in use, the other end of the connection pipe 63 is fixedly connected with the surface where the through hole 42 on the sewage tank 4 is located, the pipe body 61 is connected with the connection pipe 63, specifically, the surface where the through hole 42 on the connection pipe 63 and the sewage tank 4 are located is fixedly connected in a sealing manner, the tube body 61 and the connection tube 63 are also connected in a sealing manner, and the cavity opening of the tube cavity of the tube body 61 is communicated with the sealing cavity 21 through the connection tube 63 and the connection head 22.

In order to make the structure of the backflow prevention assembly 6 more reasonable and the production more convenient, as shown in fig. 1 and 2, the tube body 61 comprises a cylindrical member 612 and a bottom plate member 613, the bottom plate member 613 is fixed on the lower cylindrical opening of the cylindrical member 612, so that the cylindrical member 612 and the bottom plate member 613 are connected to form the tube body 61 with a tube cavity of an upper opening and lower closed structure; the cylindrical member 612 is formed with a plurality of side holes 611 arranged around the axis thereof, and each side hole 611 is further provided with a mesh structure.

In order to further improve the service life of the floor washing machine, as shown in fig. 1 and fig. 3, a gas transition casing 64 is installed between the vacuum pump 5 and the sealed cavity 21, the gas transition casing 64 is specifically fixed with the housing of the vacuum pump 5, a transition air cavity 641 is formed in the gas transition casing 64, and the air suction port of the vacuum pump 5 is communicated with the transition air cavity 641; the seal cavity 21 is also communicated with the transition air cavity 641; a circuit board 51 for controlling the vacuum pump 5 is installed on the outer surface of the gas transition case, and a heat radiating plate 52 connected to the circuit board 51 is installed in the transition air chamber 641. By adopting the design, heat generated by the circuit board 51 is transmitted to the heat dissipation plate 52 in the using process, and the vacuum pump 5 can pass through the transition air cavity 641 of the air transition shell 64 in the process of vacuumizing the sewage tank 4, so that the heat dissipation plate 52 can be cooled by the air pumped out from the sewage tank 4 by the vacuum pump 5, the temperature of the circuit board 51 for controlling the vacuum pump 5 in the local floor washing machine is lowered in time, and the service life of the circuit board 51 is greatly prolonged.

In order to make the floor cleaning machine more convenient to use, as shown in fig. 1 and 3, the floor cleaning machine further comprises a lower mounting piece 7, wherein the lower mounting piece 7 is provided with a lower sleeve part 71 and a groove shell part 72, the lower mounting piece 7 is sleeved and fixed on the handle rod 2 through the lower sleeve part 71, and the lower mounting piece 7 is specifically fixed at the lower part of the handle rod 2; a mounting cavity 73 and an embedding cavity 74 are formed on the groove shell part 72 of the lower mounting piece 7, and the mounting cavity 73 is communicated with the embedding cavity 74; the vacuum pump 5 is installed in the installation cavity 73, an air outlet of the vacuum pump 5 is arranged in a blowing mode towards the direction of the embedded cavity 74, a filtering piece 9 is installed in the embedded cavity 74, the filtering piece 9 is made of filtering cotton, the filtering cotton is used for filtering impurities and bacteria of gas, a face cover 10 with air holes is detachably installed on a cavity opening of the embedded cavity 74, and the face cover 10 is specifically detachably installed on the cavity opening of the embedded cavity 74 through a buckling structure. With such a design, the filter member 9 can filter the odor in the sewage tank 4 and reduce the noise when the vacuum pump 5 is used; the face cover 10 is detachably attached to the opening of the fitting cavity 74, so that when the filter member 9 needs to be replaced after a certain period of use, the filter member 9 can be taken out by detaching the face cover 10.

As shown in fig. 1, 2, 3, 4, 5, 6, 9, 10 and 11, the floor washing machine further comprises an upper mounting member 20, a mounting plate 30 and a bottom shell 40, wherein a nesting cavity 401 is formed on the bottom shell 40, the bottom shell 40 is sleeved on the lower mounting member 7 from the lower part of the lower mounting member 7 through the nesting cavity 401, the bottom shell 40 is fixed with the lower mounting member 7, a protruding hole 402 for the surface cover 10 on the lower mounting member 7 to penetrate is formed on the bottom shell 40, the protruding hole 402 also plays a role of sleeving with the handle bar 2 when being mounted, and the vacuum pump 5 and other components can be hidden by the design of the bottom shell 40, so that the floor washing machine is more attractive; a sleeving hole 307 is formed on the mounting plate 30, the mounting plate 30 is sleeved on the handle rod 2 through the sleeving hole 307, and the mounting plate 30 is covered on the opening of the nesting cavity 401 of the bottom shell 40 and is fixed with the bottom shell 40; a first recess 301 is formed on the top surface of the mounting plate 30, and the bottom of the wastewater tank 4 is embedded in the first recess 301; the upper mounting part 20 is provided with an upper sleeve part 201 and a fixture part 202, and the upper mounting part 20 is sleeved and fixed on the handle rod 2 through the upper sleeve part 201; the upper part of the sewage tank 4 is provided with an embedded concave position 43, the embedded concave position 43 of the sewage tank 4 and the fixture block part 202 of the upper mounting part 20 are embedded together, the sewage tank 4 is provided with a rotating part 50, the rotating part 50 rotates to enable the fixture block part 202 of the upper mounting part 20 to be clamped between the rotating part 50 and the embedded concave position 43, in order to enable the sewage tank 4 to be mounted more firmly, the local washing machine is particularly provided with 2 symmetrically arranged fixture block parts 202 on the

upper mounting part

20, 2 embedded concave positions 43 are formed on the sewage tank 4 correspondingly, and the rotating part 50 only needs to rotate to clamp one fixture block part 202 of the upper mounting part 20 between the rotating part 50 and one embedded concave position 43. The sewage tank 4 is arranged between the upper mounting part 20 and the mounting plate 30 in such a way, when the sewage tank 4 needs to be arranged on the handle rod 2, the bottom of the sewage tank 4 is firstly inserted into the first concave position 301 of the mounting plate 30, then the embedded concave position 43 on the upper part of the sewage tank 4 and the clamping block part 202 on the upper mounting part 20 are mutually nested, and then the rotating part 50 is rotated to enable the clamping block part 202 of the upper mounting part 20 to be clamped between the rotating part 50 and the embedded concave position 43, so that the sewage tank 4 can be arranged on the handle rod 2, and the installation is very convenient; when the sewage tank 4 needs to be detached, only the rotating member 50 needs to be rotated, so that the fixture block portion 202 of the upper mounting member 20 is no longer clamped by the rotating member 50 and the embedded concave portion 43 of the sewage tank 4, then the connection pipe 63 of the backflow preventing assembly 6 is separated from the connection joint 22, and finally the bottom of the sewage tank 4 is pulled out from the first concave portion 301. In addition, the sewage tank 4 of the floor washing machine comprises a tank body 44 and a tank cover 45 covering the tank body 44, the through hole 42 is formed on the tank cover 45, the sewage inlet 41 and the embedded concave position 43 are formed on the tank body 44, the connection pipe 63 is fixed with the tank cover 45, the tank cover 45 is hermetically connected with the tank opening of the tank body 44, the tank cover 45 is further fixed on the tank body 44 through a hand screw 46 penetrating through the top surface of the tank cover 45, and a limit ring is arranged on a screw rod part of the hand screw 46 so that the hand screw 46 is limited on the tank cover 45, the hand screw 46 can still be connected with the tank cover 45 after the tank cover 45 is opened, and the hand screw 46 is prevented from being lost.

As shown in fig. 1, 2, 3, 9, 10, 11 and 12, the floor washing machine further comprises a clean water tank 60, a second recess 302 is formed on the mounting plate 30, and the bottom of the clean water tank 60 is embedded in the second recess 302; a clamping head part 203 is formed on the

upper mounting part

20, 2 symmetrically arranged sliding grooves are formed on the top surface of the clamping head part 203, and a sliding block 204 is installed between the 2 sliding grooves in a sliding manner; a clamping concave part 601 is formed on the side surface of the water purifying tank 60, the clamping concave part 601 and the clamping head part 203 of the upper mounting piece 20 are mutually nested and clamped together, a clamping part 602 is formed in the clamping concave part 601, and one end of the slide block 204 slidably extends out of the clamping head part 203 of the upper mounting piece 20 and is tightly pressed with the top surface of the clamping part 602 of the water purifying tank 60. This clean water tank 60 of scrubber installs on handle pole 2 through such mounting structure, makes the installation and the dismantlement of clean water tank 60 more convenient, makes this scrubber use more convenient.

In order to facilitate the use, the water in the fresh water tank 60 does not flow out during the process of taking out the fresh water tank 60, as shown in fig. 5, 6, 9, 11 and 12, a check valve 603 is further installed on the bottom surface of the fresh water tank 60, a valve groove 303 is further formed in the second recess 302 of the mounting plate 30, the check valve 603 of the fresh water tank 60 is fitted into the valve groove 303, a through valve bolt 304 which is matched with the one-way valve 603 is arranged in the valve groove 303, the through valve bolt 304 is inserted into the one-way valve 603 of the water purification tank 60 after the water purification tank 60 is installed, the water in the fresh water tank 6 is discharged from the check valve 603, the mounting plate 30 is further formed with a water outlet 305 communicating with the valve groove 303, the bottom surface of the mounting plate 30 is mounted with a solenoid valve 306, the water inlet end of the electromagnetic valve 306 is communicated with the water outlet 305, the water outlet end of the electromagnetic valve 306 is connected with the purified water conveying pipe 70, and the purified water conveying pipe 70 penetrates out of the bottom shell 40; the cleaning main machine 1 comprises a machine base 80, a water pump and 2 floor brushing mechanisms 802, wherein the top surface of the machine base 80 is connected with the bottom end of a handle rod 2 through a universal joint mechanism, and a water outlet hole 801 communicating the top surface and the bottom surface of the machine base 80 is formed in the machine base 80; the water pump is arranged on the base 80 (the water pump is not shown in the drawing), the water inlet end of the water pump is communicated with the purified water conveying pipe 70, and the water outlet end of the water pump is communicated with the water outlet hole 801 on the base 80 through a water pipe; the 2 floor-scrubbing mechanisms 802 are distributed left and right behind the water outlet hole 801, each floor-scrubbing mechanism 802 comprises a motor 803, a connecting piece 804 and a brush disc 805, the motor 803 is mounted on the top surface of the machine base 80, a rotating shaft of the motor 803 penetrates through the top surface of the machine base 80 and extends out to the bottom surface of the machine base 80, the connecting piece 804 is located below the machine base 80, the connecting piece 804 is fixed on the rotating shaft of the motor 803, the brush disc 805 is fixed on the connecting piece 804 through hand-screwed screws 806, and the brush disc 805 is specifically fixed on the connecting piece 804 through the 2 hand-screwed screws 806. Since the brush plate 805 is a consumable product and needs to be replaced after a period of use, the brush plate 805 of the floor washing machine is mounted on the connecting piece 804 through the hand-screwed screw 806, so that a user needs to detach the brush plate 805 or mount the brush plate 805 without using tools, and the floor washing machine is more convenient to use.

In order to make the floor washing machine more convenient to use, as shown in fig. 5, 6, 7 and 8, the cleaning main machine 1 further comprises a wiper rake 90, and the wiper rake 90 comprises a mounting frame 901, a mounting bar 902, a front wiper strip 903, a

rear wiper strip

904 and 2 mounting blocks 905; wherein:

the mounting bar 902 is made into a crescent structure, so that a front arc surface 9021 and a rear arc surface 9022 are formed on the mounting bar 902, the front arc surface 9021 is a concave surface of the mounting bar 902, a plurality of front clamping jaws 9023 are formed on the front arc surface 9021, and a plurality of rear clamping jaws 9024 are formed on the rear arc surface 9022;

a plurality of front clamping holes 9031 are formed in the front wiping rubber strip 903, the front clamping holes 9031 in the front wiping rubber strip 903 correspond to the front claws 9023 in the mounting bar 902 one by one, the front wiping rubber strip 903 is hung on the front arc surface 9021 of the mounting bar 902 in a matched clamping mode through the front clamping holes 9031 of the front wiping rubber strip 903 and the front claws 9023 of the mounting bar 902, and a notch 9032 for sewage to enter is formed in the bottom edge of the front wiping rubber strip 903;

a plurality of rear clamping holes 9041 are formed in the rear water wiping rubber strip 904, the rear clamping holes 9041 in the rear water wiping rubber strip 904 correspond to the rear claws 9024 in the mounting bar 902 in a one-to-one mode, the rear water wiping rubber strip 904 is hung on the rear arc surface 9022 of the mounting bar 902 through the rear clamping holes 9041 in a matched clamping mode with the rear claws 9024 in the mounting bar 902, two ends of the rear water wiping rubber strip 904 and two ends of the front water wiping rubber strip 903 are correspondingly extruded to form a sewage collection area, and the sewage collection area is extruded and matched with the ground to form an almost sealed space when the vacuum pump 5 is used, so that sewage in the sewage collection area is conveniently pumped into the sewage tank 4 in the process of vacuumizing the sewage tank 4;

the mounting bar 902 is also provided with the sewage draining outlet 11, and the sewage draining outlet 11 is communicated with the top surface of the mounting bar 902 and the sewage collecting area;

an embedded groove 9011 is formed in the mounting frame 901, a plurality of front nesting concave positions 9012 corresponding to the positions of the front clamping claws 9023 on the mounting bar 902 in a one-to-one mode are formed in the front wall surface of the embedded groove 9011, and a plurality of rear nesting concave positions 9013 corresponding to the positions of the rear clamping claws 9024 on the mounting bar 902 in a one-to-one mode are formed in the rear wall surface of the embedded groove 9011;

the mounting bar 902 is embedded in the embedding groove 9011 of the mounting rack 901, the front nesting concave position 9012 of the mounting rack 901 is nested with the front claws 9023 on the mounting bar 902 in a one-to-one correspondence manner, so that the front wiping rubber strip 903 is limited between the front wall surface of the embedded groove 9011 of the mounting frame 901 and the front arc surface 9021 of the mounting bar 902, the rear nesting concave positions 9013 on the mounting frame 901 are nested with the rear claws 9024 on the mounting bar 902 in a one-to-one correspondence manner, so that the rear wiper strip 904 is limited between the rear wall surface of the embedding groove 9011 of the mounting rack 901 and the rear arc surface 9022 of the mounting rack 902, at least 2 stud portions 9025 penetrating through the mounting rack 901 are formed on the mounting rack 902, each stud portion 9025 of the mounting rack 902 penetrates through a through hole formed in the mounting rack 901 and extends out from the bottom surface of the mounting rack 901 to the top surface of the mounting rack 901, and a hand nut 906 is screwed on each stud portion 9025 respectively so as to fix the mounting rack 902 and the mounting rack 901 together; a sewage outlet 9014 communicated with the embedded groove 9011 is formed in the mounting frame 901, the top surface of the mounting bar 902 is tightly attached to the bottom surface of the embedded groove 9011, the sewage outlet 9014 is correspondingly communicated with a sewage outlet 11 in the mounting bar 902, and a sewage inlet 41 formed in the sewage tank 4 is communicated with the sewage outlet 9014 through a pipeline so that the sewage inlet 41 of the sewage tank 4 is communicated with the sewage outlet 11;

each mounting block 905 is provided with a fixed plate part 9051 and a cylindrical rotating part 9052, the rotating parts 9052 of the mounting blocks 905 are rotatably mounted on the mounting

frame

901, 2 mounting blocks 905 are arranged on two sides of the mounting frame 901 in a bilateral symmetry mode, the axis of the rotating part 9052 of each mounting block 905 is parallel to the horizontal plane, and the fixed plate parts 9051 of the mounting blocks 905 are fixed with the cleaning main body 1 through hand screws 907. This scrubbing machine scrape water harrow 90 and install the back, scrape water adhesive tape 903 in the front of water harrow 90 and be just brushing dish 805 to mechanism 802 of brushing ground, no matter in addition will scrape water adhesive tape 903, scrape water adhesive tape 904 after in the front and install on mounting bar 902 in the installation, or install mounting bar 902 on mounting bracket 901, or install mounting bracket 901 and all need not install with the instrument on washing host computer 1, make this scrubbing machine use more convenient.

Example 2

The present embodiment is different from embodiment 1 in that: as shown in fig. 13, a generatrix of the lumen of the tube body 100 and the axis of the handle lever 200 form an angle α within a range of 10 ° to 20 °. Such design for handle pole 200 swing in-process sewage incasement promotes the effort of floater and almost all turns into the power that the floater removed along the lumen cavity wall of body 100, makes to be in the high-order floater and blocks up the mouth of pipe of the lumen of body more fast, makes the effect of preventing flowing backward of scrubber of this embodiment better.

Claims

1. A floor washing machine comprises a cleaning host and a handle rod, wherein the handle rod is connected with the cleaning host, a sewage discharge outlet is formed in the cleaning host, a sewage collecting mechanism is mounted on the handle rod and comprises a sewage tank and a vacuum pump, and the vacuum pump is used for vacuumizing an inner cavity of the sewage tank; a sewage inlet arranged on the sewage tank is communicated with a sewage outlet through a pipeline; the method is characterized in that: the sewage collecting mechanism also comprises an anti-backflow component; the anti-backflow component comprises a pipe body and at least 2 floating balls, a pipe cavity of the pipe body is of a structure with an upper opening and a lower closing, the pipe cavity of the pipe body is also of a cone-shaped structure with a small upper part and a large lower part, a side hole communicated with the pipe cavity of the pipe body is formed in the pipe body, the side hole extends from the middle of the pipe body to the bottom of the pipe cavity, the pipe body is installed in the sewage tank, the outer circumferential surface of the pipe body is connected with the through hole of the sewage tank in a sealing mode, and the opening of the pipe body is communicated with an air suction port of the vacuum pump through a sealing cavity; the floating balls are vertically arranged and overlapped in the tube cavity of the tube body, the overall height of the overlapped floating balls is lower than that of the side holes, and the diameter of each floating ball is larger than the aperture of the cavity opening of the tube cavity of the tube body.

2. A scrubber as claimed in claim 1, wherein: the assembly of preventing flowing backward still includes one and refutes the takeover, is formed with on the handle bar the seal chamber, refute the one end and the seal chamber intercommunication of takeover, refute the other end of takeover and the via hole place face fixed connection on the sewage case, the body with refute and connect the union coupling together, the accent of the lumen of this body is through refuting takeover and seal chamber intercommunication.

3. A scrubber as claimed in claim 1, wherein: an included angle alpha is formed between a generatrix of the tube cavity of the tube body and the axis of the handle rod, and the included angle alpha is within the range of 10-20 degrees.

4. A scrubber as claimed in claim 1, wherein: the pipe body comprises a cylindrical part and a bottom plate part, wherein the bottom plate part is fixed on a lower cylinder opening of the cylindrical part, so that the cylindrical part and the bottom plate part are connected to form the pipe body with a pipe cavity of an upper opening and a lower closed structure; the cylindrical part is provided with a plurality of side holes distributed around the axis of the cylindrical part, and a mesh structure is further distributed in each side hole.

5. A scrubber as claimed in claim 1, wherein: a gas transition shell is arranged between the vacuum pump and the sealing cavity, a transition gas cavity is formed in the gas transition shell, and a gas suction port of the vacuum pump is communicated with the transition gas cavity; the sealing cavity is also communicated with the transition air cavity; the outer surface of the gas transition shell is provided with a circuit board for controlling the vacuum pump, and a heat dissipation plate connected with the circuit board is arranged in the transition air cavity.

6. A scrubber as claimed in claim 1, wherein: the lower mounting piece is provided with a lower sleeve part and a groove shell part, and the lower mounting piece is sleeved and fixed on the handle rod through the lower sleeve part; a mounting cavity and an embedding cavity are formed on the groove shell part of the lower mounting part, and the mounting cavity is communicated with the embedding cavity; the vacuum pump is installed in the installation cavity, the air outlet of the vacuum pump is arranged by blowing towards the direction of the embedded cavity, the embedded cavity is internally provided with a filter piece, and the orifice of the embedded cavity is also detachably provided with a face cover with an air hole.

7. A floor washing machine according to claim 6, characterized in that: the bottom shell is sleeved on the lower mounting piece from the lower part of the lower mounting piece through the nesting cavity, and is fixed with the lower mounting piece together, and an extending hole for the surface cover on the lower mounting piece to penetrate out is formed in the bottom shell; the mounting plate is sleeved on the handle rod through the sleeving hole, and the mounting plate cover is arranged on the opening of the nesting cavity of the bottom shell and fixed with the bottom shell; a first concave position is formed on the top surface of the mounting plate, and the bottom of the sewage tank is embedded in the first concave position; the upper mounting part is provided with an upper sleeve part and a clamping block part, and the upper mounting part is sleeved and fixed on the handle rod through the upper sleeve part; the upper part of the sewage tank is provided with an embedded concave position, the embedded concave position of the sewage tank and the clamping block part of the upper mounting part are embedded together, the sewage tank is provided with a rotating part, and the rotating part rotates to enable the clamping block part of the upper mounting part to be clamped between the rotating part and the embedded concave position.

8. A floor washing machine according to claim 7, characterized in that: the water purifying device also comprises a water purifying tank, wherein a second concave position is formed on the mounting plate, and the bottom of the water purifying tank is embedded in the second concave position; a clamping head part is formed on the upper mounting part, 2 sliding grooves are formed on the top surface of the clamping head part, and a sliding block is installed between the 2 sliding grooves in a sliding mode; the side surface of the water purification tank is provided with a clamping concave position, the clamping concave position and the clamping head part of the upper mounting piece are mutually embedded, clamped and clamped together, a clamping part is formed in the clamping concave position, and one end of the sliding block slidably extends out of the clamping head part of the upper mounting piece and is tightly pressed with the top surface of the clamping part of the water purification tank.

9. A scrubber as claimed in claim 8, wherein: the bottom surface of the water purification tank is also provided with a one-way valve, a valve groove is formed in a second concave position of the mounting plate, the one-way valve of the water purification tank is embedded in the valve groove, a through valve bolt which is matched with the one-way valve is arranged in the valve groove, a water outlet which is communicated with the valve groove is also formed on the mounting plate, the bottom surface of the mounting plate is provided with an electromagnetic valve, the water inlet end of the electromagnetic valve is communicated with the water outlet, the water outlet end of the electromagnetic valve is connected with a water purification delivery pipe, and the water purification delivery pipe penetrates out of the bottom shell; the cleaning main machine comprises a machine base, a water pump and 2 floor brushing mechanisms, wherein the top surface of the machine base is connected with the bottom end of a handle rod through a universal joint mechanism, and a water outlet hole for communicating the top surface with the bottom surface of the machine base is formed in the machine base; the water pump is arranged on the base, the water inlet end of the water pump is communicated with the purified water conveying pipe, and the water outlet end of the water pump is communicated with the water outlet hole in the base through a water pipe; 2 mechanism of brushing ground is about being distributed and is located the rear of apopore, and each mechanism of brushing ground includes motor, connecting piece and brush dish respectively, and the motor is installed on the top surface of frame, and the top surface that the pivot of motor passed the frame stretches out to the bottom surface of frame on, and the connecting piece is in the below of frame, and the connecting piece is fixed in the pivot of motor, the brush dish is fixed on the connecting piece through hand screw.

10. A scrubber as claimed in claim 1, wherein: the cleaning host machine also comprises a water scraping rake, and the water scraping rake comprises a mounting frame, a mounting bar, a front water scraping rubber strip, a rear water scraping rubber strip and 2 mounting blocks; wherein: