CN220238364U - Paint mixing equipment for house building decoration - Google Patents

Abstract

The utility model relates to the technical field of house construction, in particular to a paint mixing device for house construction decoration, which comprises a bottom plate, a containing cylinder, a paint cylinder, an annular rack, a fixed plate, a driving motor, a driving gear, a stirring assembly and a cleaning assembly.

Description

Paint mixing equipment for house building decoration

Technical Field

The utility model relates to the technical field of house construction, in particular to paint mixing equipment for house construction and decoration.

Background

When the building inner wall is decorated, building paint such as emulsion paint is generally used for smearing the wall body to realize indoor decoration. In the production of latex paints, however, it is often necessary to mix the raw materials of the latex paint with stirring by means of stirring equipment.

The existing paint mixing equipment for house building decoration is used for stirring and mixing paint, a small amount of paint can be adhered to a stirring head, and the stirring head needs to be cleaned manually, so that the construction efficiency is affected.

Disclosure of Invention

The utility model aims to provide paint mixing equipment for house building decoration, which solves the problems that a small amount of paint is adhered to a stirring head in the background technology, the stirring head needs to be cleaned manually, and the construction efficiency is affected.

The technical scheme of the utility model is as follows:

the utility model provides a house is coating mixing apparatus for building decoration, includes the bottom plate, holds a section of thick bamboo, coating section of thick bamboo, annular rack, fixed plate, driving motor, drive gear, stirring subassembly and cleaning module, hold a section of thick bamboo and rotate the top of installing at the bottom plate, four equidistant recesses that set up around its centre of a circle are offered to the inner wall that holds a section of thick bamboo, coating section of thick bamboo is vertical to be set up in holding a section of thick bamboo to the top of coating section of thick bamboo stretches out and holds a section of thick bamboo, be equipped with four on the outer wall of coating section of thick bamboo around equidistant sand grip that sets up of its centre of a circle, four sand grip and four recess one-to-one, annular rack cover is established on holding the outer wall of a section of thick bamboo, the top at the bottom plate is installed to the fixed plate, driving motor is vertical to drive gear installs on driving motor's output shaft to drive gear and annular rack meshing, stirring subassembly and cleaning module install at the top of bottom plate.

Further, stirring subassembly includes carriage, lead screw slip table, movable plate, electric putter, lifter plate, regulating plate, agitator motor, (mixing) shaft, two slide rails and two stirring frames, two the slide rail symmetry sets up the top at the bottom plate, carriage slidable mounting is on two slide rails, the lead screw slip table level sets up the side at one of them slide rail, the movable plate is installed on the mobile terminal of lead screw slip table to the movable plate is connected with the carriage, electric putter vertically sets up the top at the carriage, the lifter plate is installed on electric putter's output, the bottom of lifter plate is equipped with four spliced poles, the bottom at four spliced poles is installed to the regulating plate, the (mixing) shaft rotates the bottom center department at the regulating plate, agitator motor vertically sets up the top at the regulating plate to agitator motor's output shaft is connected with the (mixing) shaft, two the stirring frame symmetry sets up on the (mixing) shaft, be equipped with a plurality of puddler in the stirring frame.

Further, the cleaning assembly comprises a cleaning cylinder, a water tank, a booster pump, a first pipeline, a second pipeline, a filtering component and a backwater component, wherein the cleaning cylinder and the water tank are arranged at the top of the bottom plate at intervals, the booster pump is horizontally arranged between the cleaning cylinder and the water tank, two ends of the first pipeline are respectively communicated with the input end of the booster pump and the inner bottom end of the cleaning cylinder, two ends of the second pipeline are respectively communicated with the output end of the booster pump and the inner top end of the water tank, the filtering component is arranged at the inner top end of the water tank, the backwater component is arranged at the top of the bottom plate, and two ends of the backwater component are respectively communicated with the water tank and the cleaning cylinder.

Further, filter element includes rose box, filter core, two horizontal pieces and two locating parts, two horizontal piece symmetry sets up the inside top at the water tank, the rose box overlap joint is on two horizontal pieces, the bottom of rose box is equipped with a plurality of through-hole, the filter core sets up in the rose box, two the locating part symmetry sets up on the top outer wall of water tank to the bottom of two locating parts is contradicted with the top of filter core.

Further, the locating part includes backup pad, guide rail, sliding seat, rotation axis, rotor plate, swivel nut, screw rod, spacing dish, rotation handle and two limiting plates, the backup pad is installed on the top outer wall of water tank, the guide rail level sets up at the top of backup pad, sliding seat slidable mounting is on the guide rail, the rotor plate passes through the rotation axis and rotates the top of installing at the sliding seat, two limiting plate symmetry sets up on the outer wall of sliding seat to the top of one of them limiting plate contacts with the bottom of rotor plate, the vertical setting of swivel nut is at the top of rotor plate, the screw rod sets up in the swivel nut to the bottom of screw rod extends to in the water tank, screw rod and swivel nut screw-thread fit, the bottom at the screw rod is installed to the spacing dish bottom and the top conflict of filter core, the top at the screw rod is installed to the rotation handle.

Further, the bottom of sliding seat is equipped with fixing bolt, the symmetry is provided with two fixed orifices on the guide rail, fixing bolt's tail end and fixed orifices spiro union.

Further, return water part includes return water pump, first wet return and second wet return, the return water pump level sets up at the top of bottom plate, the both ends of first wet return are linked together with the inside bottom of return water pump's input and water tank respectively, the both ends of second wet return are linked together with the inside top of return water pump's output and wash bowl respectively.

The utility model provides a coating mixing device for house building decoration through improvement, which has the following improvement and advantages compared with the prior art:

the method comprises the following steps: according to the utility model, the lifting plate is driven to move downwards through the operation of the electric push rod, the lifting plate drives the two stirring frames to move downwards to extend into the paint cylinder, then the stirring motor is driven to rotate clockwise by the operation of the stirring shaft, the stirring shaft drives the two stirring frames to rotate clockwise, the paint in the paint cylinder is rapidly stirred by the clockwise rotation of the stirring rods on the two stirring frames, the electric push rod drives the two stirring frames to move upwards to reset after the stirring is completed, then the screw rod sliding table is driven to move by the moving plate and the stirring frame, the stirring frame moves on the two sliding rails, the stirring frame drives the two stirring frames to move above the cleaning component, finally the two stirring frames are driven to move downwards to extend into the cleaning component by the operation of the electric push rod, and the cleaning component is used for automatically cleaning a small amount of paint adhered to the stirring rods on the two stirring frames without manual cleaning, so that the construction efficiency is not affected.

And two,: according to the utility model, the sewage entering the top end of the inside of the water tank is filtered through the filter element, paint impurities in the sewage are blocked by the filter element, filtered water flows into the bottom end of the inside of the water tank through the plurality of through holes, the two limiting pieces limit the filter element, and when the filter element needs to be replaced, the bottom ends of the two limiting pieces are separated from the top of the filter element, so that the filter element can be rapidly taken out.

Drawings

The utility model is further explained below with reference to the drawings and examples:

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of a second embodiment of the present utility model;

FIG. 3 is a schematic view of a partial perspective view of the present utility model;

FIG. 4 is a schematic view of a partial perspective view of the present utility model;

FIG. 5 is a schematic perspective view of a stirring assembly of the present utility model;

FIG. 6 is a schematic perspective view of a cleaning assembly according to the present utility model;

FIG. 7 is a partial cross-sectional view of a cleaning assembly of the present utility model;

FIG. 8 is a schematic view of a partial perspective view of a cleaning assembly of the present utility model;

FIG. 9 is a schematic perspective view of a limiting member according to the present utility model;

fig. 10 is a schematic perspective view of the guide rail of the present utility model.

Reference numerals illustrate:

the floor 1, the accommodating cylinder 2, the groove 21, the paint cylinder 3, the protruding strip 31, the annular rack 4, the fixed plate 5, the driving motor 6, the driving gear 7, the stirring assembly 8, the stirring rack 81, the screw rod sliding table 82, the moving plate 83, the electric push rod 84, the lifting plate 85, the connecting column 851, the adjusting plate 86, the stirring motor 87, the stirring shaft 88, the slide rail 89, the stirring frame 891, the stirring rod 892, the cleaning assembly 9, the cleaning cylinder 91, the water tank 92, the booster pump 93, the first pipe 94, the second pipe 95, the filtering part 96, the filtering box 961, the through hole 9611, the filtering core 962, the lateral piece 963, the limiting piece 964, the supporting plate 965, the guide rail 966, the fixed hole 9661, the sliding seat 967, the fixed bolt 9671, the rotating shaft 968, the rotating plate 969, the threaded sleeve 9691, the screw rod 9692, the limiting disc 9693, the rotating handle 9694, the limiting plate 9695, the water return part 97, the water return pipe 972, the second water return pipe 973.

Detailed Description

The following detailed description of the present utility model clearly and fully describes the technical solutions of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a coating mixing device for house building decoration through improvement, as shown in fig. 1-10, which comprises a bottom plate 1, a containing cylinder 2, a coating cylinder 3, an annular rack 4, a fixed plate 5, a driving motor 6, a driving gear 7, a stirring assembly 8 and a cleaning assembly 9, wherein the containing cylinder 2 is rotatably arranged at the top of the bottom plate 1, four grooves 21 which are arranged at equal intervals around the center of the circle are formed in the inner wall of the containing cylinder 2, the coating cylinder 3 is vertically arranged in the containing cylinder 2, the top end of the coating cylinder 3 extends out of the containing cylinder 2, four raised strips 31 which are arranged at equal intervals around the center of the circle are arranged on the outer wall of the coating cylinder 3, the four raised strips 31 are in one-to-one correspondence with the four grooves 21, the annular rack 4 is sleeved on the outer wall of the containing cylinder 2, the fixed plate 5 is arranged at the top of the bottom plate 1, the driving motor 6 is vertically arranged on the fixed plate 5, the driving gear 7 is arranged on the output shaft of the driving motor 6, the driving gear 7 is meshed with the annular rack 4, and the stirring assembly 8 and the cleaning assembly 9 are arranged at the top of the bottom plate 1; through coating in coating section of thick bamboo 3, then driving motor 6 work drives driving gear 7 clockwise rotation, driving gear 7 utilizes annular rack 4 to drive and holds section of thick bamboo 2 and coating section of thick bamboo 3 anticlockwise rotation, stirring subassembly 8 work then drives stirring part clockwise and carries out rapid mixing to the coating in the coating section of thick bamboo 3, after the stirring is accomplished, stirring subassembly 8 continues to work and drives stirring part and remove to washing subassembly 9 department, stirring subassembly 8 work at last will stir the part and move down to stretch into in washing subassembly 9, washing subassembly 9 work carries out self-cleaning to the small amount of coating of stirring part adhesion, need not artifical manual washing, can not influence the efficiency of construction.

Specifically, the stirring assembly 8 comprises a stirring frame 81, a screw sliding table 82, a moving plate 83, an electric push rod 84, a lifting plate 85, an adjusting plate 86, a stirring motor 87, a stirring shaft 88, two sliding rails 89 and two stirring frames 891, wherein the two sliding rails 89 are symmetrically arranged at the top of the bottom plate 1, the stirring frame 81 is slidably arranged on the two sliding rails 89, the screw sliding table 82 is horizontally arranged at the side of one sliding rail 89, the moving plate 83 is arranged at the moving end of the screw sliding table 82, the moving plate 83 is connected with the stirring frame 81, the electric push rod 84 is vertically arranged at the top of the stirring frame 81, the lifting plate 85 is arranged at the output end of the electric push rod 84, four connecting columns 851 are arranged at the bottom of the lifting plate 85, the adjusting plate 86 is arranged at the bottom of the four connecting columns 851, the stirring shaft 88 is rotatably arranged at the bottom center of the adjusting plate 86, the stirring motor 87 is vertically arranged at the top of the adjusting plate 86, the output shaft 87 is connected with the stirring shaft 88, the two stirring frames 891 are symmetrically arranged at the bottom of the stirring frames 891, and a plurality of stirring rods 892 are arranged in the stirring frames 891; the lifting plate 85 is driven to move downwards through the operation of the electric push rod 84, the lifting plate 85 drives the two stirring frames 891 to move downwards until the two stirring frames 891 extend into the paint cylinder 3, then the stirring motor 87 is operated to drive the stirring shaft 88 to rotate clockwise, the stirring shaft 88 drives the two stirring frames 891 to rotate clockwise, the plurality of stirring rods 892 on the two stirring frames 891 rotate clockwise to rapidly stir paint in the paint cylinder 3, the electric push rod 84 drives the two stirring frames 891 to move upwards to reset after stirring is completed, then the screw sliding table 82 is operated to drive the moving plate 83 and the stirring frame 81 to move, the stirring frame 81 is operated to move on the two sliding rails 89, the stirring frame 81 is operated to drive the two stirring frames 891 to move to the upper portion of the cleaning assembly 9, and finally the electric push rod 84 is operated to drive the two stirring frames 891 to move downwards until the two stirring frames 891 extend into the cleaning assembly 9, and the cleaning assembly 9 is operated to automatically clean a small amount of paint adhered to the stirring rods 892 on the two stirring frames 891.

Specifically, the cleaning assembly 9 includes a cleaning cylinder 91, a water tank 92, a booster pump 93, a first pipe 94, a second pipe 95, a filtering component 96 and a backwater component 97, wherein the cleaning cylinder 91 and the water tank 92 are arranged at the top of the base plate 1 at intervals, the booster pump 93 is horizontally arranged between the cleaning cylinder 91 and the water tank 92, two ends of the first pipe 94 are respectively communicated with an input end of the booster pump 93 and an inner bottom end of the cleaning cylinder 91, two ends of the second pipe 95 are respectively communicated with an output end of the booster pump 93 and an inner top end of the water tank 92, the filtering component 96 is arranged at the inner top end of the water tank 92, the backwater component 97 is arranged at the top of the base plate 1, and two ends of the backwater component 97 are respectively communicated with the water tank 92 and the cleaning cylinder 91; through two stirring frames 891 downwardly moving to stretch into in the wash bowl 91, the water in the wash bowl 91 washs the small amount of coating of puddler 892 adhesion, and the sewage in the wash bowl 91 is by the work of booster pump 93 extraction through first pipeline 94 and second pipeline 95 entering to the inside top of water tank 92 after the washing, then filter part 96 filters the coating impurity in the sewage, and the water after the filtration enters into the inside bottom of water tank 92, and the water of the inside bottom of water tank 92 is carried to the water in the wash bowl 91 to return part 97 work, ensures the cyclic utilization of water resource, water economy resource.

Specifically, the filtering component 96 includes a filtering box 961, a filtering core 962, two transverse blocks 963 and two limiting pieces 964, where the two transverse blocks 963 are symmetrically disposed at the top end of the water tank 92, the filtering box 961 is lapped on the two transverse blocks 963, the bottom end of the filtering box 961 is provided with a plurality of through holes 9611, the filtering core 962 is disposed in the filtering box 961, the two limiting pieces 964 are symmetrically disposed on the top outer wall of the water tank 92, and the bottom ends of the two limiting pieces 964 are in contact with the top of the filtering core 962; through filtering core 962 to get into the sewage on the inside top of water tank 92 and filter, the coating impurity in the sewage is blockked by filtering core 962, and the inside bottom of water tank 92 is flowed into to the water after filtering through a plurality of through-hole 9611, and two locating parts 964 are spacing to filtering core 962, when filtering core 962 needs to be changed, only need with the bottom of two locating parts 964 and the top separation of filtering core 962, can take out filtering core 962 fast.

Specifically, the limiting piece 964 includes a supporting plate 965, a guide rail 966, a sliding seat 967, a rotating shaft 968, a rotating plate 969, a threaded sleeve 9691, a threaded rod 9692, a limiting disc 9693, a rotating handle 9694 and two limiting plates 9695, the supporting plate 965 is mounted on the top outer wall of the water tank 92, the guide rail 966 is horizontally arranged at the top of the supporting plate 965, the sliding seat 967 is slidably mounted on the guide rail 966, the rotating plate 969 is rotatably mounted at the top of the sliding seat 967 through the rotating shaft 968, the two limiting plates 9695 are symmetrically arranged on the outer wall of the sliding seat 967, the top of one limiting plate 9695 is in contact with the bottom of the rotating plate 969, the threaded sleeve 9691 is vertically arranged at the top of the rotating plate 969, the threaded rod 9692 is arranged in the threaded sleeve 9691, the bottom of the threaded rod 9692 extends into the water tank 92, the threaded rod 9692 is in threaded engagement with the threaded sleeve 9691, the limiting disc 9693 is mounted at the bottom of the threaded rod 9692, the top of the limiting disc 9693 is abutted against the top of the threaded rod 9625, and the threaded rod 962 is mounted at the top of the rotating handle 9694; the screw rod 9692 is driven to rotate in the threaded sleeve 9691 through the rotating handle 9694, the screw rod 9692 moves downwards while rotating, the screw rod 9692 drives the limiting disc 9693 to move downwards while rotating along with the screw rod 9692, the bottom of the limiting disc 9693 is convenient to abut against the top of the filter core 962, the limiting disc 9693 is used for limiting the filter core 962, when the filter core 962 needs to be replaced, the rotating plate 969 only needs to be rotated, the rotating plate 969 rotates on the sliding seat 967 by utilizing the rotating shaft 968, the rotating plate 969 rotates 180 degrees to be in contact with the top of the other limiting plate 9695, and at the moment, the screw rod 9692 and the limiting disc 9693 rotate out from the water tank 92, so that the filter core 962 can be conveniently and rapidly taken out for replacement.

Specifically, a fixing bolt 9671 is arranged at the bottom end of the sliding seat 967, two fixing holes 9661 are symmetrically arranged on the guide rail 966, and the tail end of the fixing bolt 9671 is in threaded connection with the fixing hole 9661; the tail end of the fixing bolt 9671 is screwed with the fixing hole 9661 to limit the sliding seat 967, and the fixing bolt 9671 is taken out when the sliding seat 967 needs to slide on the rail 966.

Specifically, the water return member 97 includes a water return pump 971, a first water return pipe 972 and a second water return pipe 973, where the water return pump 971 is horizontally disposed at the top of the bottom plate 1, two ends of the first water return pipe 972 are respectively communicated with an input end of the water return pump 971 and an inner bottom end of the water tank 92, and two ends of the second water return pipe 973 are respectively communicated with an output end of the water return pump 971 and an inner top end of the cleaning cylinder 91; the water at the bottom end inside the water tank 92 is pumped by the water return pump 971 to enter the cleaning barrel 91 through the first water return pipe 972 and the second water return pipe 973, so that the recycling of water resources is ensured.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. A paint mixing device for house building decoration is characterized in that: including bottom plate (1), hold section of thick bamboo (2), coating section of thick bamboo (3), annular rack (4), fixed plate (5), driving motor (6), drive gear (7), stirring subassembly (8) and cleaning subassembly (9), hold section of thick bamboo (2) and rotate the top of installing at bottom plate (1), hold the inner wall of section of thick bamboo (2) and seted up four recess (21) that set up around its centre of a circle equidistant, coating section of thick bamboo (3) are vertical to be set up in holding section of thick bamboo (2) to the top of coating section of thick bamboo (3) is stretched out and is held section of thick bamboo (2), be equipped with four sand strips (31) that set up around its centre of a circle equidistant on the outer wall of coating section of thick bamboo (3), four sand strips (31) and four recess (21) one-to-one, annular rack (4) cover is established on holding the outer wall of section of thick bamboo (2), the top of thick bamboo (1) is installed at fixed plate (5), driving motor (6) are vertical to be set up on fixed plate (5), drive gear (7) are installed on driving motor (6) output shaft to drive gear (7) and are installed with annular rack (8) and are washd subassembly (9).

2. A paint mixing apparatus for house building finishing as claimed in claim 1, wherein: the stirring assembly (8) comprises a stirring frame (81), a screw sliding table (82), a moving plate (83), an electric push rod (84), a lifting plate (85), a regulating plate (86), a stirring motor (87), a stirring shaft (88), two sliding rails (89) and two stirring frames (891), wherein the two sliding rails (89) are symmetrically arranged at the top of a bottom plate (1), the stirring frame (81) is slidably arranged on the two sliding rails (89), the screw sliding table (82) is horizontally arranged beside one sliding rail (89), the moving plate (83) is arranged at the moving end of the screw sliding table (82), the moving plate (83) is connected with the stirring frame (81), the electric push rod (84) is vertically arranged at the top of the stirring frame (81), the lifting plate (85) is arranged at the output end of the electric push rod (84), four connecting columns (851) are arranged at the bottom of the lifting plate (85), the regulating plate (86) is arranged at the bottom of the four connecting columns (851), the stirring shaft (86) is arranged at the bottom of the stirring shaft (86) and is arranged at the top of the stirring shaft (87), two stirring frames (891) are symmetrically arranged on the stirring shaft (88), and a plurality of stirring rods (892) are arranged in the stirring frames (891).

3. A paint mixing apparatus for house building finishing as claimed in claim 1, wherein: the utility model provides a cleaning assembly (9) is including wash bowl (91), water tank (92), booster pump (93), first pipeline (94), second pipeline (95), filter element (96) and return water part (97), wash bowl (91) and water tank (92) interval set up at the top of bottom plate (1), booster pump (93) level sets up between wash bowl (91) and water tank (92), the both ends of first pipeline (94) are linked together with the inside bottom of the input of booster pump (93) and wash bowl (91) respectively, the both ends of second pipeline (95) are linked together with the inside top of the output of booster pump (93) and water tank (92) respectively, filter element (96) are installed on the inside top of water tank (92), return water part (97) are installed at the top of bottom plate (1) to the both ends of return water part (97) are linked together with water tank (92) and wash bowl (91) respectively.

4. A paint mixing apparatus for house building finishing as claimed in claim 3, wherein: the filter element (96) comprises a filter box (961), a filter core (962), two transverse blocks (963) and two limiting pieces (964), wherein the two transverse blocks (963) are symmetrically arranged at the top end of the water tank (92), the filter box (961) is lapped on the two transverse blocks (963), a plurality of through holes (9611) are formed in the bottom end of the filter box (961), the filter core (962) is arranged in the filter box (961), the two limiting pieces (964) are symmetrically arranged on the outer wall of the top end of the water tank (92), and the bottom ends of the two limiting pieces (964) are abutted against the top of the filter core (962).

5. A paint mixing apparatus for house building finishing as claimed in claim 4, wherein: the limiting piece (964) comprises a supporting plate (965), a guide rail (966), a sliding seat (967), a rotating shaft (968), a rotating plate (969), a threaded sleeve (9691), a screw rod (9692), a limiting disc (9693), a rotating handle (9694) and two limiting plates (9695), wherein the supporting plate (965) is installed on the outer wall of the top end of a water tank (92), the guide rail (966) is horizontally arranged at the top of the supporting plate (965), the sliding seat (967) is slidably installed on the guide rail (966), the rotating plate (969) is rotatably installed on the top end of the sliding seat (967) through the rotating shaft (968), two limiting plates (9695) are symmetrically arranged on the outer wall of the sliding seat (967), the top of one limiting plate (9695) is contacted with the bottom of the rotating plate (969), the threaded sleeve (9691) is vertically arranged on the top of the rotating plate (969), the screw rod (9692) is arranged in the threaded sleeve (9691), the bottom end of the screw rod (9692) is arranged in the water tank (9692) and is matched with the bottom end of the threaded disc (9692) in the top of the threaded sleeve (9693) in a matched mode with the bottom end of the threaded disc (9693), the rotary handle (9694) is mounted on the top end of the screw (9692).

6. A paint mixing apparatus for house building finishing as claimed in claim 5, wherein: the bottom of sliding seat (967) is equipped with fixing bolt (9671), the symmetry is provided with two fixed orifices (9661) on guide rail (966), the tail end and the fixed orifice (9661) spiro union of fixing bolt (9671).

7. A paint mixing apparatus for house building finishing as claimed in claim 3, wherein: the water return component (97) comprises a water return pump (971), a first water return pipe (972) and a second water return pipe (973), wherein the water return pump (971) is horizontally arranged at the top of the bottom plate (1), two ends of the first water return pipe (972) are respectively communicated with the input end of the water return pump (971) and the inner bottom end of the water tank (92), and two ends of the second water return pipe (973) are respectively communicated with the output end of the water return pump (971) and the inner top end of the cleaning cylinder (91).