CN216628409U

CN216628409U - Floor scrubbing machine

Info

Publication number: CN216628409U
Application number: CN202123307485.3U
Authority: CN
Inventors: 楚世海; 张来良; 王相北; 楚君堂
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-31
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a floor scrubbing machine, which comprises a walking rack, wherein a sewage tank and a clean water tank are arranged on the rack; a rotatable front shaft is arranged at the front bottom of the rack, front support arms are fixedly connected to two ends of the front shaft respectively, and the front support arms are rotatably connected with scrubbing rollers; a power roller is arranged at the front top of the sewage tank, a carrier roller is arranged below the power roller, and a cleaning roller is arranged below the carrier roller; the scrubbing roller, the power roller, the cleaning roller and the carrier roller are wrapped with a scrubbing belt, the scrubbing roller, the power roller and the cleaning roller are in contact with the inner surface of the scrubbing belt, and the carrier roller is in contact with the outer surface of the scrubbing belt; a water collecting tank is arranged below the cleaning roller, and a rolling brush capable of brushing the scrubbing belt is arranged above the rear part of the cleaning roller; a spray pipe communicated with the clear water tank is arranged above the cleaning roller, and a press roller capable of extruding the scrubbing belt is arranged behind the power roller; the ground scrubbing machine also comprises a lifting driving mechanism for driving the scrubbing roller to lift and descend. The machine can clean the scrubbing belt and scrub the ground at the same time, and the scrubbing effect of the ground is good.

Description

Floor scrubbing machine

Technical Field

The utility model relates to a device for cleaning the ground, in particular to a ground scrubbing machine.

Background

Market, station and exhibition room etc. the place that the people is big that flows, its ground needs often clean, and present clean mode is firstly by the manual work, secondly carries out through cleaning device. The existing cleaning modes of the equipment mainly comprise a simulated manual mopping mode and a disc mopping mode for driving a mop cloth to wipe through the rotation of a rotating disc, and the two modes can not clean a scrubbing component such as the mop cloth in the floor cleaning process, so that the floor cleaning effect is poor.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a floor scrubbing machine which can clean scrubbing parts in the floor cleaning process so as to achieve the purpose of scrubbing the floor while cleaning the scrubbing parts.

In order to achieve the purpose, the utility model provides a ground scrubbing machine with the following structure, which comprises a rack, wherein the rack is provided with a front traveling wheel, a rear traveling wheel and a steering handle for driving the ground scrubbing machine to steer, and the traveling of the rack is realized by driving the front traveling wheel or the rear traveling wheel by a traveling driving device; the structure is characterized in that: the rack is provided with a sewage tank and a clear water tank; the front bottom of the frame is provided with a front shaft, two ends of the front shaft respectively extend out of two sides of the frame and can rotate, two ends of the front shaft are respectively fixedly connected with a front support arm extending forwards, and the front support arm is rotatably connected with a scrubbing roller; a power roller is arranged at the upper part of the sewage tank, a carrier roller is arranged below the power roller, a cleaning roller is arranged below the carrier roller, and two ends of the power roller, the carrier roller and the cleaning roller are respectively and rotatably connected to two side walls of the sewage tank; the scrubbing roller, the power roller, the cleaning roller and the carrier roller are wrapped with a scrubbing belt, the scrubbing roller, the power roller and the cleaning roller are in contact with the inner surface of the scrubbing belt, and the carrier roller is in contact with the outer surface of the scrubbing belt; a water collecting tank is arranged below the cleaning roller, the cleaning roller is partially positioned in the water collecting tank, a rolling brush capable of scrubbing the scrubbing belt is arranged above the rear part of the cleaning roller, and the power roller and the rolling brush are driven by a scrubbing power device to rotate; a spray pipe which is communicated with the clear water tank and can spray water to the scrubbing belt is arranged above the cleaning roller, and a press roller which is respectively connected with two ends of the power roller in a rotating way on two side walls of the sewage tank and can be matched with the power roller to extrude the scrubbing belt is arranged behind the power roller; the floor scrubbing machine also includes a lift drive mechanism that rotates the front axle to raise and lower the scrubbing roller.

The back bottom of frame is equipped with both ends and stretches out frame both sides respectively and can the pivoted rear axle, and each rigid coupling in both ends of rear axle has the back support arm that stretches after, be connected with the mop frame on the back support arm, the tip rigid coupling of rear axle has the back linking arm of stretching before, the tip rigid coupling of front axle has the preceding linking arm of stretching after, preceding linking arm can be in the same place with back linking arm relatively slidable's articulated.

The lifting driving mechanism comprises a lifting pull rope, a descending pull rope and a driving arm fixedly connected to one end of the front shaft; the sewage tank is rotatably connected with an upper rope drawing wheel and a lower rope drawing wheel which are respectively positioned above and below the driving arm on the side wall corresponding to the driving arm, and the rotation of the upper rope drawing wheel is driven by a lifting power device; two upper ring grooves are arranged on the outer peripheral surface of the upper rope pulley, and a lower ring groove is arranged on the outer peripheral surface of the lower rope pulley; one end of the lifting rope is fixedly connected to the groove wall of one upper ring groove, the other end of the lifting rope is connected with the driving arm through the lifting spring, one end of the descending rope is fixedly connected to the groove wall of the other upper ring groove, and the other end of the descending rope is connected with the driving arm after bypassing the lower rope pulley; when the upper rope-pulling wheel rotates forwards, the upper rope-pulling wheel is wound around the lifting rope to be shortened so as to pull the driving arm to turn upwards, so that the scrubbing roller is close to the ground, and the lifting rope is lowered to be in the process of extending while being shortened; when the upper pull rope wheel rotates reversely, the upper pull rope wheel is wound around the lower pull rope to be shortened so as to pull the driving arm to turn downwards, so that the scrubbing roller is far away from the ground, and the upper pull rope is in an extending process while the lower pull rope is shortened.

And a tensioning device which can enable the descending pull rope to be in a tensioned state when the descending pull rope is in an extension process is arranged below the upper pull rope wheel so as to prevent the descending pull rope from falling out of the annular groove of the lower pull rope wheel.

The tensioning device comprises two supporting plates fixedly connected to the side wall of the sewage tank at intervals and a sliding rod connected to the two supporting plates in a sliding mode, one end of the sliding rod penetrates out of one supporting plate, the other end of the sliding rod penetrates out of the other supporting plate, a jacking wheel abutting against the descending pull rope is rotatably connected to one penetrating end of the sliding rod, a jacking spring located between the two supporting plates is sleeved on the sliding rod, a spring stopper is arranged on the sliding rod, one end of the jacking spring abuts against the spring stopper, and the other end of the jacking spring abuts against the supporting plate far away from the jacking wheel.

The wall of the sewage tank is rotatably connected with a wheel shaft, an upper rope-pulling wheel is fixedly arranged on the wheel shaft, the lifting power device is a lifting motor arranged on the frame or the wall of the sewage tank, and the lifting motor is in power connection with the wheel shaft through a chain wheel and chain transmission chain.

Two side walls of the sewage tank are respectively provided with a sliding and non-rotatable compression roller seat, and two ends of the compression roller are respectively and rotatably connected to the two compression roller seats; the bottom of the rack is provided with a middle shaft, two ends of the middle shaft respectively extend out of two sides of the rack and can rotate, a pull arm is fixedly connected to the extending end of the middle shaft, two side walls of the sewage tank are respectively hinged with a pressure arm, the upper end of each pressure arm is in contact with the pressure roller seat, and the lower end of each pressure arm is connected with the pull arm through a tension spring; a handle is fixedly connected to one extending end of the middle shaft, a plurality of stop pins capable of positioning the handle are arranged on the side wall of the sewage tank, and the adjustment of the extrusion force of the scrubbing belt by the compression roller can be realized by changing the position of the handle and enabling the handle to abut against the stop pins at different positions.

The front end part of the front support arm is provided with a scrubbing roller sliding groove, a scrubbing roller seat which can slide along the scrubbing roller sliding groove but can not rotate is inserted in the scrubbing roller sliding groove, two ends of the scrubbing roller are respectively and rotatably connected to the scrubbing roller seat, and the front support arm is provided with a deviation correcting device which can prevent the scrubbing belt from deviating; the correcting device comprises a nut seat and a spring sleeve which are fixedly connected to the front supporting arm, an adjusting nut is rotatably connected to the nut seat, a spring fulcrum shaft extending into the spring sleeve is fixedly connected to the scrubbing roller seat, a correcting spring with the length larger than that of the spring fulcrum shaft is sleeved on the spring fulcrum shaft, a screw rod extending into the spring sleeve is screwed on the adjusting nut, one end of the correcting spring is fixedly connected with the scrubbing roller seat, and the other end of the correcting spring extends into the spring sleeve and is fixedly connected with the extending end of the screw rod; the screw rod can be driven to axially move by rotating the adjusting nut, and the scrubbing roller seat can be pulled close or pushed far by the axially moving screw rod through the deviation rectifying spring so that the scrubbing roller and the power roller are arranged in parallel.

The clean water tank is a fully-closed water tank arranged at the top of the sewage tank, and the clean water tank is hinged on the frame or the wall of the sewage tank so as to realize the function of being also used as the tank cover of the sewage tank; the clean water tank is communicated with the spray pipe through a water supply pipeline provided with a water pump or a water pump and a valve.

The scrubbing power device is a scrubbing motor arranged on the wall of the rack or the sewage tank, and the scrubbing motor is in power connection with the power roller and the rolling brush through a chain wheel and chain transmission chain.

The front travelling wheels are two, the rear travelling wheels are one, the front travelling wheels are arranged at the front bottom of the frame, the middle part of the rear part of the frame is rotatably connected with a steering shaft, the rear travelling wheels are arranged on a rear travelling wheel shaft which is rotatably connected to the lower end of the steering shaft, the travelling driving device is a travelling motor, the travelling motor is in power connection with the rear travelling wheel shaft, and the upper end of the steering shaft is provided with a steering gear; the steering handle comprises an upper handle section and a lower handle section which are rotatably connected to the wall of the rack or the sewage tank, the upper handle section and the lower handle section are connected through a universal joint, and a driving gear meshed with the steering gear is arranged on the lower handle section.

The use mode of the utility model is as follows: before use, clear water is filled into the clear water tank, or the clear water can be filled into the water collecting tank at the same time, the lifting driving mechanism is started to drive the scrubbing roller to descend until the scrubbing roller drives the scrubbing belt to be contacted with the ground, then the walking power device and the scrubbing power device are started, and the scrubbing power device drives the scrubbing belt to rotate in the process that the walking power device drives the ground scrubbing machine to walk, so that the ground is scrubbed; in the rotation process of the scrubbing belt, the belt section attached with the dirt and the dust is firstly soaked and scrubbed by water in the water collecting tank, then is scrubbed by the rolling brush and becomes a cleaner belt section by spray water (sprayed out from a spray pipe), and then is involved in the scrubbing of the ground. The water content of the scrubbing belt can be adjusted by adjusting the pressure of the compression roller, and the water content of the scrubbing belt can be reduced by increasing the pressure of the compression roller, otherwise, the water content is increased; the cleaner changes the direction of travel of the floor scrubbing machine by manipulating the steering handle, with the direction of rotation of the scrubbing belt being generally counterclockwise. After the floor scrubbing process is finished, the scrubbing power device is stopped, the lifting driving mechanism is started again to drive the scrubbing roller to ascend until the scrubbing roller drives the scrubbing belt to leave the floor, meanwhile, the spraying of the water spraying pipe is stopped, the floor scrubbing machine is driven to a storage place, and at the moment, water in the water collecting tank can be put into the sewage tank and muddy water in the sewage tank can be discharged. In the scrubbing process, if the clear water tank is lack of water, water can be supplemented, if the water level of the sewage tank exceeds the set water level, water can be discharged, and operation can be continued after water supplement or/and water discharge is completed.

As apparent from the above description of the usage of the present invention, the present invention has advantages of washing the scrubbing tape while scrubbing the floor using the scrubbing tape, and can give a good scrubbing effect to the floor.

Drawings

The following detailed description of embodiments of the utility model is provided in conjunction with the appended drawings:

FIG. 1 is a schematic cross-sectional structural view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a right side view of the present invention;

fig. 4 is a schematic structural diagram of the deviation correcting device, which is an enlarged view of a portion a of fig. 2 and 3.

Detailed Description

Referring to fig. 1, 2 and 3, the floor scrubbing machine provided by the present invention comprises a frame 1, wherein the frame 1 is provided with front road wheels 2, rear road wheels 3 and a steering handle 4 for driving the floor scrubbing machine to steer. The utility model discloses a walking machine, including frame, preceding walking wheel 2, walking drive device, walking motor, preceding walking wheel 2 are two, back walking wheel 3 is one, and preceding walking wheel 2 dress is in the preceding bottom of frame, and frame rear portion middle part rotates and is connected with

steering spindle

5, and 5 lower extreme rigid couplings of steering spindle have back walking wheel support 61, rotate on the back walking wheel support 61 and be connected with back walking wheel shaft 6, back walking wheel 3 adorns admittedly on back walking wheel shaft 6, and the walking of frame is realized by walking drive device drive back walking wheel, and walking drive device is for adorning the walking motor (omitting in the figure) on steering spindle 5 or back walking wheel support 61, and the walking motor passes through chain sprocket and 6 power connection of back walking wheel shaft, and the walking motor orders about back walking wheel 3 and rotates and can realize the walking of scrubbing machine on ground. The upper end of the steering shaft 5 is provided with a steering gear 7; the steering handle comprises an upper handle section 62 and a lower handle section 63 which are rotatably connected to the wall of the rack or the sewage tank, the upper handle section and the lower handle section are connected through a universal joint 8, and a driving gear 64 meshed with the steering gear 7 is arranged on the lower handle section; the upper handle section can be rotated to rotate the steering shaft 5 through the universal joint 8, the lower handle section 63 and the meshed driving gear 64 and steering gear 7 so as to drive the rear road wheels 3 to change the traveling direction, and the traveling direction of the ground scrubbing machine can be changed. Of course, the frame can also be driven by the front running wheel driven by the running driving device. The foregoing definitions of the front and rear directions are as follows: the steering handle 4 is arranged behind the frame by taking the advancing direction of the ground scrubbing machine as the front; when the operator holds the steering handle 4 to face forward, the left side of the operator is the left side of the floor scrubbing machine, the right side of the operator is the right side of the floor scrubbing machine, fig. 2 is a left side view of the floor scrubbing machine and fig. 3 is a right side view of the floor scrubbing machine, which are named according to the left and right meanings.

Referring to fig. 1, 2 and 3, a sewage tank 9 is mounted on the frame 1, a front shaft 10 is mounted at the front bottom of the frame 1, two ends of the front shaft respectively extend out of the left side and the right side of the frame and can rotate, front support arms 11 extending forwards are respectively fixedly connected to two ends of the front shaft, and a scrubbing roller 13 is arranged in front of the frame, two ends of the scrubbing roller are respectively rotatably connected to the front support arms. A power roller 14 is arranged at the front top of the sewage tank 9, a carrier roller 15 is arranged below the power roller 14, a cleaning roller 16 is arranged below the carrier roller 15, and two ends of the power roller 14, the carrier roller 15 and the cleaning roller 16 are respectively and rotatably connected to the left side wall and the right side wall of the sewage tank 9; the scrubbing roller 13, the power roller 14, the cleaning roller 16 and the carrier roller 15 are wrapped with a scrubbing belt 17, and the scrubbing belt 17 can be an annular belt made of sponge or formed by compounding sponge on the surface of an annular rubber belt; the scrub roller 13, the power roller 14 and the cleaning roller 16 are in contact with the inner surface of the scrub belt 17, and the supporting roller 15 is in contact with the outer surface of the scrub belt 17. A water collecting tank 18 positioned in the sewage tank 9 is arranged below the cleaning roller 16, part of the cleaning roller 16 is positioned in the water collecting tank 18, and a rolling brush 19 capable of brushing the scrubbing belt 17 is arranged above and behind the cleaning roller 16; the rotation of the power roller 14 and the rolling brush 19 is driven by a scrubbing power device; the scrubbing power device is a scrubbing motor 20 arranged on the wall of the rack or the sewage tank (the scrubbing motor 20 is shown to be arranged on the rack), and the scrubbing motor 20 is in power connection with the power roller and the rolling brush through a scrubbing transmission chain 56 formed by a chain wheel and a chain. The top of the sewage tank 9 is provided with a clean water tank 21 which is a totally closed water tank, and the clean water tank 21 is hinged on the frame or the wall of the sewage tank to realize the function of being also used as the tank cover of the sewage tank; the totally-enclosed water tank is characterized in that the four sides of the water tank are provided with tank walls, a water filling port and a water outlet are arranged on the tank walls, and an openable blocking cover is arranged on the water filling port. A spray pipe 22 connected to the clean water tank through a water supply line (not shown) provided with a water pump or a water pump and a valve is provided above the cleaning roller 16, the spray pipe 22 sprays water toward the wiping belt, and the water collection tank 18 receives the sprayed water flowing down from the wiping belt.

Referring to fig. 1, 2 and 3, a press roller 23 which can be matched with the power roller 14 to extrude the scrubbing belt is arranged behind the power roller; the left and right side walls of the sewage tank 9 are respectively provided with a slidable and non-rotatable compression roller seat 24, that is, the left and right side walls of the sewage tank 9 are respectively provided with a compression roller chute 65, and the compression roller seat 24 is slidably inserted into the compression roller chute 65, so that the compression roller seat 24 can slide and can not rotate; two ends of the compression roller 23 are respectively connected to the two compression roller seats 24 in a rotating manner. The bottom of frame is equipped with both ends and stretches out frame left and right both sides respectively and pivoted axis 25, and the rigid coupling has the single arm-drag 26 on the extension end of axis 25, it has pressure arm 27 respectively to articulate on the left and right both sides wall of sewage case, the upper end of pressure arm 27 with compression roller seat 24 contact, the lower extreme pass through the extension spring 28 with single arm-drag 26 is connected, and the rigid coupling has handle 29 on the extension end of axis 25. The handle 29 is pulled to drive the central shaft 25 to rotate, the rotating central shaft 25 pulls the lower end of the pressure arm 27 through the pull arm 26 on the rotating central shaft and the tension spring 28 connected with the pull arm 26, the pressure arm 27 is hinged on the side wall of the sewage tank, so the upper end of the pressure arm 27 can push the pressure roller seat 24 to slide towards the power roller 14, the pressure roller 23 on the pressure roller seat 24 can extrude the scrubbing belt 17, and the water content of the scrubbing belt 17 can be changed by changing the extrusion degree of the scrubbing belt 17. The adjustment of the extrusion force of the scrubbing belt 17 is realized by a plurality of stop pins 30 which are arranged on the side wall of the sewage tank or on the rack and can position the handle 29, and the adjustment of the extrusion force of the compression roller on the scrubbing belt 17 can be realized by changing the position of the handle 29 and enabling the handle 29 to be abutted against the stop pins 30 at different positions; three stop pins 30 are shown, the squeezing force being minimal when the handle is resting on the upper stop pin, slightly greater when resting on the middle stop pin and maximal when resting on the lower stop pin.

Referring to fig. 1, 2 and 3, a rear shaft 31 is installed at the rear bottom of the frame 1, two ends of the rear shaft 31 respectively extend out of the left side and the right side of the frame and can rotate, rear support arms 32 extending backwards are respectively fixedly connected to two ends of the rear shaft 31, a mop frame 33 is connected to the rear support arms 32, and the mop frame 33 is used for holding a mop 55. A rear connecting arm 34 extending forwards is fixedly connected to the end part of the rear shaft 31, and a front connecting arm 35 extending backwards is fixedly connected to the end part of the front shaft 10; the front connecting arm 35 and the rear connecting arm 34 are hinged together in a relatively slidable manner, namely: the front connecting arm 35 is fixedly connected with a pin shaft, the rear connecting arm 34 is provided with a strip hole, the pin shaft is arranged in the strip hole in a penetrating mode, and the pin shaft is matched with the strip hole to enable the front connecting arm 35 and the rear connecting arm 34 to be hinged together in a relatively sliding mode. The elevation drive mechanism is provided for lowering the scrub roller to bring the scrub belt 17 into contact with the floor when scrubbing the floor and for raising the scrub roller to take the scrub belt 17 off the floor when not scrubbing the floor. Referring to fig. 2, the lifting driving mechanism includes a lifting rope 36, a lowering rope 37, and a driving arm 38 fixed to one end of the front axle, and the sewage tank 9 is rotatably connected to an upper rope sheave 39 and a lower rope sheave 40 respectively located above and below the driving arm 38 on a side wall corresponding to the driving arm. The wall of the sewage tank 9 is rotatably connected with a wheel shaft 41, an upper rope-pulling wheel 39 is fixedly arranged on the wheel shaft 41, the rotation of the upper rope-pulling wheel 39 is driven by a lifting power device, the lifting power device is a lifting electric motor 42 arranged on the frame or the wall of the sewage tank, and the lifting electric motor 42 is in power connection with the wheel shaft 41 through a lifting transmission chain 57 formed by chain wheels and chains. Two upper ring grooves are arranged on the outer peripheral surface of the upper pull rope wheel 39, and a lower ring groove is arranged on the outer peripheral surface of the lower pull rope wheel; one end of the lifting rope 36 is fixedly connected to the groove wall of the upper ring groove, and the other end is connected with the driving arm 38 through a lifting spring 43; one end of the descending pull rope 37 is fixedly connected to the wall of the other upper ring groove, and the other end of the descending pull rope is connected with the driving arm 38 after bypassing the lower pull rope wheel 40. When the upper rope-pulling wheel 39 rotates positively, the lifting rope 36 is wound on the upper rope-pulling wheel 39 and then pulls the driving arm 38 to turn upwards, the driving arm 38 drives the front shaft 10 to rotate and drives the front supporting arm 11 to turn downwards, so that the scrubbing roller is close to the ground; meanwhile, the front shaft 10 drives the front connecting arm 35 to turn up, the front connecting arm 35 drives the rear connecting arm 34 to turn up, the connecting arm 34 drives the rear shaft 31 to rotate, the rear shaft 31 drives the rear supporting arm 32 to turn down, and therefore the mop frame 33 is close to the ground; the ascending pull rope is in the process of extending while winding and shortening the ascending pull rope. When the upper rope pulling wheel rotates reversely, the descending pull rope 37 is wound on the upper rope pulling wheel to pull the driving arm 38 to turn downwards, and the driving arm 38 drives the front shaft to rotate reversely (relative to the rotating direction of the front shaft 10 when the front supporting arm 11 turns downwards) and drives the front supporting arm 11 to turn upwards, so that the scrubbing roller is far away from the ground; meanwhile, the front shaft 10 drives the front connecting arm 35 to turn down, the front connecting arm 35 drives the rear connecting arm 34 to turn down, the connecting arm 34 drives the rear shaft 31 to rotate reversely (relative to the rotating direction of the rear shaft 31 when the supporting arm 32 turns down), and the rear shaft 31 drives the rear supporting arm 32 to turn up, so that the mop frame 33 is far away from the ground; the lowering cord 37 is in the process of extending while the winding shortening process is in the process of raising the cord. The lengths of the elevation cord 36 and the descent cord 37 are constant, and the extension and the contraction refer to changes in the lengths of the elevation cord 36 and the descent cord 37 between the upper sheave 39 and the drive arm 38.

Referring to fig. 2, a tension device is provided below the upper sheave 39 to tension the lowering rope 37 during the extension process thereof to prevent the lowering rope from coming out of the ring groove of the lower sheave 40. The tensioning device comprises two support plates 66 fixedly connected to the side wall of the sewage tank at intervals and a slide rod 44 slidably connected to the two support plates, one end of the slide rod 44 penetrates through one support plate, the other end of the slide rod penetrates through the other support plate, a pressing wheel 45 abutting against the descending pull rope 37 is rotatably connected to the penetrating end of the slide rod, a pressing spring 46 positioned between the two support plates is sleeved on the slide rod 44, a spring block 47 is arranged on the slide rod, and the spring block 47 can be a bulge arranged on the slide rod or a stop pin connected to the slide rod; the jacking springs 46 bear with one end against the spring stops 47 and with the other end against a support plate 66 remote from the jacking wheels 45.

Referring to fig. 2, 3 and 4, the rollers connected to the wall of the sewage tank 9 are easily arranged in parallel in terms of processing and assembly processes, but the scrubbing roller 13 is connected through the front support arm 11, and the front support arm 11 can be turned up and down, so that the difficulty of arranging the scrubbing roller 13 and the power roller 14 in parallel is increased, the parallelism between the scrubbing roller 13 and the power roller 14 cannot be guaranteed, and the scrubbing belt 17 can be deviated in the rotation process. In order to adjust the scrubbing roller 13 to be parallel to the power roller 14, the following further improvement is made: the front end part of the front supporting arm 11 is provided with a scrubbing roller chute 12, a scrubbing roller seat 48 which can slide along the scrubbing roller chute 12 but can not rotate is inserted in the scrubbing roller chute 12, and two ends of the scrubbing roller 13 are respectively connected on the scrubbing roller seat 48 in a rotating way. A deviation correcting device capable of preventing the scrubbing belt from deviating is arranged on the front support arm 11; the correcting device comprises a nut seat 49 and a spring sleeve 50 which are fixedly connected on the front supporting arm, an adjusting nut 51 is rotatably connected on the nut seat 49, a spring fulcrum 52 which extends into the spring sleeve 50 is fixedly connected on the scrubbing roller seat 48, a correcting spring 53 is sleeved on the spring fulcrum 52, a screw 54 which extends into the spring sleeve 50 is screwed on the adjusting nut 51, one end of the correcting spring 53 is fixedly connected with the scrubbing roller seat 48, the other end of the correcting spring extends into the spring sleeve 50 and is fixedly connected with the extending end of the screw 54, and the length of the correcting spring 53 is greater than that of the spring fulcrum 52 so that the end of the spring fulcrum 52 and the end of the screw 54 are arranged in the spring sleeve 50 at a certain distance; the screw rod 54 can be driven to move axially by rotating the adjusting nut 51, and the axially moving screw rod 54 can draw the scrubbing roller seat 48 close or push the scrubbing roller seat 48 away through the deviation rectifying spring 53 so as to enable the scrubbing roller 13 to be arranged in parallel with the power roller 14. The advantage of the spring fulcrum 52 and the end of the screw 54 being spaced apart is that: in the process of scrubbing the ground, the deviation-correcting spring 53 can buffer external force impact (such as impact caused by uneven ground, sundries and the like) on the scrubbing roller 13, so that the scrubbing belt is prevented from being damaged; when the front supporting arm 11 is turned up to drive the scrubbing roller 13 to move away from the ground, the scrubbing roller 13 can have a retraction space, and the scrubbing roller 13 can be prevented from excessively pulling the scrubbing belt to cause damage to the scrubbing belt.

The lifting driving mechanism and the tensioning device of the embodiment are arranged on the left side of the floor scrubbing machine, as shown in fig. 2; the scrubbing power unit, handle and stop pin are located on the right side of the floor scrubbing machine as shown in FIG. 3; the lifting driving mechanism and the tensioning device can also be arranged on the right side of the ground scrubbing machine, and the scrubbing power device, the handle and the stop pin are arranged on the left side of the ground scrubbing machine, so that the use effects are the same; with regard to the arrangement of the above-described devices and components, those skilled in the art may make equivalent changes in accordance with the design practices and the user requirements without affecting the scope of the present invention in light of the teachings of the present invention.

The use mode of the utility model is as follows: before use, clear water is filled into the clear water tank, or the clear water can be filled into the water collecting tank at the same time, the lifting driving mechanism is started to drive the scrubbing roller to descend until the scrubbing roller drives the scrubbing belt to contact with the ground, and meanwhile, the mop frame also descends to enable a mop (not shown) on the mop frame to contact with the ground, and the state is shown in fig. 2 and 3; then starting the walking power device and the scrubbing power device, wherein the scrubbing power device drives the scrubbing belt to rotate in the process that the walking power device drives the ground scrubbing machine to walk, so that the ground is scrubbed; in the rotation process of the scrubbing belt, the belt section attached with the stains and the dust is firstly soaked and washed by water in the water collecting tank, then is scrubbed by the rolling brush and is changed into a cleaner belt section by the water sprayed by the water spraying pipe, and then is involved in the ground for scrubbing; water sprayed from the spray pipe flows into the water collecting tank after being sprayed to the scrubbing belt, overflows into the sewage tank after the water collecting tank is full of water, and continuously flows into the water collecting tank through the spraying water, so that the water in the water collecting tank can be kept relatively clean, and a better cleaning effect can be achieved. The water content of the scrubbing belt can be adjusted by adjusting the pressure of the compression roller, and if the pressure of the compression roller is increased, the water content of the scrubbing belt is less, otherwise, the water content is more; the cleaner can manipulate the direction of travel of the floor scrubbing machine by holding the steering handle, with the direction of rotation of the scrubbing belt being generally counter-clockwise. After the floor scrubbing process is finished, the scrubbing power device is stopped, the lifting driving mechanism is started again to drive the scrubbing roller and the mop cloth frame to ascend until the scrubbing belt and the mop cloth on the mop cloth frame leave the floor, the spraying of the spraying pipe is stopped at the same time, the floor scrubbing machine is driven to a storage place, and at the moment, water in the water collecting tank can be put into the sewage tank and muddy water in the sewage tank can be discharged. In the scrubbing process, if the clear water tank is lack of water, water can be supplemented, if the water level of the sewage tank exceeds the set water level, water can be discharged, and operation can be continued after water supplement or/and water discharge is completed.

Claims

1. A ground scrubbing machine comprises a rack, wherein the rack is provided with front traveling wheels, rear traveling wheels and a steering handle for driving the ground scrubbing machine to steer, and the traveling of the rack is realized by driving the front traveling wheels or the rear traveling wheels by a traveling driving device; the method is characterized in that: the rack is provided with a sewage tank and a clear water tank; the front bottom of the frame is provided with a front shaft, two ends of the front shaft respectively extend out of two sides of the frame and can rotate, two ends of the front shaft are respectively fixedly connected with a front support arm extending forwards, and the front support arm is rotatably connected with a scrubbing roller; a power roller is arranged at the upper part of the sewage tank, a carrier roller is arranged below the power roller, a cleaning roller is arranged below the carrier roller, and two ends of the power roller, the carrier roller and the cleaning roller are respectively and rotatably connected to two side walls of the sewage tank; the scrubbing roller, the power roller, the cleaning roller and the carrier roller are wrapped with a scrubbing belt, the scrubbing roller, the power roller and the cleaning roller are in contact with the inner surface of the scrubbing belt, and the carrier roller is in contact with the outer surface of the scrubbing belt; a water collecting tank is arranged below the cleaning roller, the cleaning roller is partially positioned in the water collecting tank, a rolling brush capable of scrubbing the scrubbing belt is arranged above the rear part of the cleaning roller, and the power roller and the rolling brush are driven by a scrubbing power device to rotate; a spray pipe which is communicated with the clear water tank and can spray water to the scrubbing belt is arranged above the cleaning roller, and a press roller which is respectively connected with two ends of the power roller in a rotating way on two side walls of the sewage tank and can be matched with the power roller to extrude the scrubbing belt is arranged behind the power roller; the floor scrubbing machine also includes a lift drive mechanism that rotates the front axle to raise and lower the scrubbing roller.

2. The floor scrubbing machine of claim 1, wherein: the back bottom of frame is equipped with both ends and stretches out frame both sides respectively and can the pivoted rear axle, and each rigid coupling in both ends of rear axle has the back support arm that stretches after, be connected with the mop frame on the back support arm, the tip rigid coupling of rear axle has the back linking arm of stretching before, the tip rigid coupling of front axle has the preceding linking arm of stretching after, preceding linking arm can be in the same place with back linking arm relatively slidable's articulated.

3. A floor scrubbing machine as defined in claim 1 or 2, wherein: the lifting driving mechanism comprises a lifting pull rope, a descending pull rope and a driving arm fixedly connected to one end of the front shaft; the sewage tank is rotatably connected with an upper rope drawing wheel and a lower rope drawing wheel which are respectively positioned above and below the driving arm on the side wall corresponding to the driving arm, and the rotation of the upper rope drawing wheel is driven by a lifting power device; two upper ring grooves are arranged on the outer peripheral surface of the upper rope pulley, and a lower ring groove is arranged on the outer peripheral surface of the lower rope pulley; one end of the lifting rope is fixedly connected to the groove wall of one upper ring groove, the other end of the lifting rope is connected with the driving arm through the lifting spring, one end of the descending rope is fixedly connected to the groove wall of the other upper ring groove, and the other end of the descending rope is connected with the driving arm after bypassing the lower rope pulley; when the upper rope-pulling wheel rotates forwards, the upper rope-pulling wheel is wound around the lifting rope to be shortened so as to pull the driving arm to turn upwards, so that the scrubbing roller is close to the ground, and the lifting rope is lowered to be in the process of extending while being shortened; when the upper rope drawing wheel rotates reversely, the upper rope drawing wheel winds the descending pull rope to shorten so as to pull the driving arm to turn downwards, so that the scrubbing roller is far away from the ground, and the ascending pull rope is in an extending process while the descending pull rope is shortened.

4. A floor scrubbing machine as defined in claim 3, wherein: and a tensioning device which can enable the descending pull rope to be in a tensioned state when the descending pull rope is in an extension process is arranged below the upper pull rope wheel so as to prevent the descending pull rope from falling out of the annular groove of the lower pull rope wheel.

5. The floor scrubbing machine of claim 4, wherein: the tensioning device comprises two supporting plates fixedly connected to the side wall of the sewage tank at intervals and a sliding rod connected to the two supporting plates in a sliding mode, one end of the sliding rod penetrates out of one supporting plate, the other end of the sliding rod penetrates out of the other supporting plate, a jacking wheel abutting against the descending pull rope is rotatably connected to one penetrating end of the sliding rod, a jacking spring located between the two supporting plates is sleeved on the sliding rod, a spring stopper is arranged on the sliding rod, one end of the jacking spring abuts against the spring stopper, and the other end of the jacking spring abuts against the supporting plate far away from the jacking wheel.

6. A floor scrubbing machine as defined in claim 3, wherein: the wall of the sewage tank is rotatably connected with a wheel shaft, the upper rope-pulling wheel is fixedly arranged on the wheel shaft, the lifting power device is a lifting motor arranged on the frame or the wall of the sewage tank, and the lifting motor is in power connection with the wheel shaft through a chain wheel and chain transmission chain.

7. The floor scrubbing machine of claim 1, wherein: two side walls of the sewage tank are respectively provided with a sliding and non-rotatable compression roller seat, and two ends of the compression roller are respectively and rotatably connected to the two compression roller seats; the bottom of the rack is provided with a middle shaft, two ends of the middle shaft respectively extend out of two sides of the rack and can rotate, a pull arm is fixedly connected to the extending end of the middle shaft, two side walls of the sewage tank are respectively hinged with a pressure arm, the upper end of each pressure arm is in contact with the pressure roller seat, and the lower end of each pressure arm is connected with the pull arm through a tension spring; a handle is fixedly connected to one extending end of the middle shaft, a plurality of stop pins capable of positioning the handle are arranged on the side wall of the sewage tank, and the adjustment of the extrusion force of the scrubbing belt by the compression roller can be realized by changing the position of the handle and enabling the handle to abut against the stop pins at different positions.

8. The floor scrubbing machine of claim 1, wherein: the front end part of the front support arm is provided with a scrubbing roller sliding groove, a scrubbing roller seat which can slide along the scrubbing roller sliding groove but can not rotate is inserted in the scrubbing roller sliding groove, two ends of the scrubbing roller are respectively and rotatably connected to the scrubbing roller seat, and the front support arm is provided with a deviation correcting device which can prevent the scrubbing belt from deviating; the correcting device comprises a nut seat and a spring sleeve which are fixedly connected to the front supporting arm, an adjusting nut is rotatably connected to the nut seat, a spring fulcrum shaft extending into the spring sleeve is fixedly connected to the scrubbing roller seat, a correcting spring with the length larger than that of the spring fulcrum shaft is sleeved on the spring fulcrum shaft, a screw rod extending into the spring sleeve is screwed on the adjusting nut, one end of the correcting spring is fixedly connected with the scrubbing roller seat, and the other end of the correcting spring extends into the spring sleeve and is fixedly connected with the extending end of the screw rod; the screw rod can be driven to axially move by rotating the adjusting nut, and the scrubbing roller seat can be pulled close or pushed far by the axially moving screw rod through the deviation rectifying spring so that the scrubbing roller and the power roller are arranged in parallel.

9. The floor scrubbing machine of claim 1, wherein: the clean water tank is a fully-closed water tank arranged at the top of the sewage tank, and the clean water tank is hinged on the frame or the wall of the sewage tank so as to realize the function of being also used as the tank cover of the sewage tank; the clean water tank is communicated with the spray pipe through a water supply pipeline provided with a water pump or a water pump and a valve.

10. The floor scrubbing machine of claim 1, wherein: the scrubbing power device is a scrubbing motor arranged on the wall of the rack or the sewage tank, and the scrubbing motor is in power connection with the power roller and the rolling brush through a chain wheel and chain transmission chain.