CN216225844U

CN216225844U - Ultrasonic cleaning machine

Info

Publication number: CN216225844U
Application number: CN202122276595.1U
Authority: CN
Inventors: 欧晢文; 杨鑫
Original assignee: Zhejiang Baolvte Environmental Protection Technology Engineering Co ltd
Current assignee: Zhejiang Baolvte Environmental Protection Technology Engineering Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-04-08
Anticipated expiration: 2031-09-17

Abstract

The utility model relates to an ultrasonic cleaning machine which comprises a supporting assembly and a cleaning machine body, wherein the cleaning machine body is arranged on the supporting assembly, a cleaning cavity for cleaning materials is formed in the cleaning machine body, a plurality of ultrasonic vibrators for sending ultrasonic waves into the cleaning cavity are arranged in the cleaning machine body, and the plurality of ultrasonic vibrators are distributed in an interlayer of the cleaning machine body. When the material is cleaned, the material is conveyed into the cleaning cavity uniformly through the material conveying device, liquid cleaning media are arranged in the cleaning cavity, and when the material passes through the cleaning cavity filled with the cleaning media, ultrasonic waves generated by a plurality of ultrasonic vibrators form a cavitation effect in the cleaning media to clean the material. Compare in traditional stirring abluent mode, utilize the ultrasonic wave that the ultrasonic vibrator produced to wash the material, promoted the cleaning performance of material, reduced the abluent cost of material.

Description

Ultrasonic cleaning machine

Technical Field

The utility model relates to the technical field of plastic cleaning and recycling, in particular to an ultrasonic cleaning machine.

Background

With the increasing consumption of plastic products, the amount of waste plastic is also increasing. In addition, the annual consumption of plastics for automobiles in China reaches 40 ten thousand tons, and the annual consumption of plastics matched with electronic appliances and household appliances reaches more than 100 ten thousand tons, and the products become one of important sources of waste plastics after being scrapped.

It is known that in 2004 domestic waste plastics have reached about 1100 million tons. If the application and post-treatment of the waste plastic raw materials to be processed are improper during storage, transportation and processing of the waste plastics, the environment is damaged and the health of people is harmed. Therefore, the recovery of the waste plastics is an essential means for recovering the use value of the waste materials, changing waste into valuable, reducing environmental pollution and promoting the sustainable development of the economy and the society.

The plastic recycling system generally adopts a physical method, and the equipment comprises the procedures of sorting, raw material pretreatment, cleaning, drying, granulation and the like. The waste plastic cleaning process is very important, and the waste plastic cleaning process needs to be fully cleaned, so that the residue of organic matters in the cleaned material is minimized, the quality of the material is infinitely close to that of raw materials, the material can be recycled in a wider field, and the safety of subsequent plastic products can be ensured.

Among the prior art, chinese patent that publication number is CN204817265U discloses a plastics cleaning machine, including the cleaning machine body, cleaning machine body center is equipped with washs the axle, it is connected with driven gear to wash axle lower extreme, driven gear meshes with the driving gear mutually, the driving gear is connected with driving motor, it is equipped with the washing pole to wash epaxial both sides, be equipped with the washing post on each washing pole, be equipped with first inlet tube on cleaning machine body one side, be equipped with the second inlet tube on the opposite side.

The above prior art solutions have the following drawbacks: foretell cleaning machine is through setting up driving gear, driven gear, washing post, first inlet tube and second inlet tube, puts into the cleaning machine with plastics like this, and it is rotatory to realize the driving gear under driving motor's effect, and the driving gear drives driven gear rotatory, realizes that the washing post washs the plastic surface. At present, in the waste plastic recycling and cleaning industry, the cleaning principle of the cleaning machine is the same as that of the prior art, the cleaning of the plastic sheets still stays in the stirring and cleaning stage, and the cleaning effect of the bottle sheets does not reach the expected effect through verification of a plurality of experimental results, so that the cleaning cost of the bottle sheets can be increased.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the ultrasonic cleaning machine, the ultrasonic vibrators are arranged in the cleaning machine, and the ultrasonic waves generated by the ultrasonic vibrators are used for cleaning materials, so that the material cleaning effect is improved, and the material cleaning cost is reduced.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides an ultrasonic cleaner, includes supporting component and cleaning machine body, cleaning machine body installs on the supporting component, set up in the cleaning machine body and be used for the abluent washing cavity of material, cleaning machine body be provided with a plurality of be used for to send ultrasonic wave's ultrasonic vibrator in the washing cavity, it is a plurality of ultrasonic vibrator distributes in cleaning machine body's the intermediate layer.

The present invention in a preferred example may be further configured to: a material inlet pipe is arranged on one side of the cleaning machine body, and a material discharge pipe is arranged on the other side of the cleaning machine body;

be close to inlet pipe one end for the ultrasonic vibrator is washed crudely in the intermediate layer of cleaning machine body, be close to material discharge pipe one end for the ultrasonic vibrator is washed to the essence in the intermediate layer of cleaning machine body, the resonant frequency of the ultrasonic vibrator is greater than the resonant frequency of the ultrasonic vibrator is washed crudely.

The present invention in a preferred example may be further configured to: an inner container is arranged in the cleaning chamber, the inner container and the cleaning machine body are coaxially arranged, and the outer wall of the inner container and the inner wall of the cleaning machine body form the cleaning chamber.

The present invention in a preferred example may be further configured to: the inner bag is close to the one end of inlet pipe is the back taper setting.

The present invention in a preferred example may be further configured to: a material homogenizing mechanism is arranged between the feeding pipe and the inner container.

The present invention in a preferred example may be further configured to: the material homogenizing mechanism comprises a driving device, a material distributing box, a rotating shaft and a material discharging pipe, and the material distributing box is arranged on the cleaning machine body and communicated with the material feeding pipe;

drive arrangement is used for the drive the rotation axis is in divide the workbin internal rotation, the discharging pipe can be dismantled and fix the rotation axis is kept away from drive arrangement's one end, the both ends of discharging pipe respectively with divide the workbin and wash the cavity intercommunication, the discharge gate of discharging pipe is the slope setting.

The present invention in a preferred example may be further configured to: the refining mechanism further comprises a connecting ring and a plurality of connecting plates, one end of the connecting ring is fixedly connected with the discharging pipe, the connecting ring is coaxially and fixedly connected with the rotating shaft through the connecting plates, and the connecting plates are uniformly distributed on the outer side of the rotating shaft.

The present invention in a preferred example may be further configured to: the bottom of the cleaning machine body is provided with a water inlet mechanism, the top of the cleaning machine body is provided with an overflow mechanism, and the water inlet mechanism and the overflow mechanism are respectively communicated with the cleaning chamber.

The present invention in a preferred example may be further configured to: the overflow mechanism comprises an overflow ring, an impurity overflow pipe and a plurality of screen plates, the overflow ring is fixed on the outer side of the cleaning machine body and forms an overflow groove with the outer wall of the cleaning machine body, the screen plates are detachably fixed on the cleaning machine body, and the impurity overflow pipe is fixed on the overflow ring and is communicated with the overflow groove.

In summary, the utility model includes at least one of the following beneficial technical effects:

1. when the material is cleaned, the material is conveyed into the cleaning cavity uniformly through the material conveying device, liquid cleaning media are arranged in the cleaning cavity, and when the material passes through the cleaning cavity filled with the cleaning media, ultrasonic waves generated by a plurality of ultrasonic vibrators form a cavitation effect in the cleaning media to clean the material. Compare in traditional stirring abluent mode, utilize the ultrasonic wave that the ultrasonic vibrator produced to wash the material, promoted the cleaning performance of material, reduced the abluent cost of material.

2. The resonance frequency of the rough-washing ultrasonic vibrator arranged on the cleaning machine body is 28kHz vibrator, the material is roughly washed, and the ultrasonic wave generates large bubbles in the cleaning medium, so that impurities on the surface of the material can be removed. The resonance frequency of the fine-cleaning ultrasonic vibrator arranged below the cleaning machine body is 40kHz vibrator, the material is subjected to fine cleaning, and the ultrasonic waves generate small and dense bubbles in the cleaning medium and act on gaps of the material, so that impurities in the gaps of the material can be removed. Firstly, the materials pass through the thickness and then are finely washed, so that the materials are cleaner, and the surface cleanliness of the materials is better.

3. The material gets into the refining mechanism through the inlet pipe, carries out preliminary branch material under the effect of refining mechanism, and the material of being equallyd divide slides down on the conical surface of inner bag to divide the material for the second time, the material evenly gets into in the annular washing chamber under the effect of gravity. The even distribution of material can promote the cleaning performance of each material on the one hand in annular washing chamber, and on the other hand can furthest utilizes ultrasonic vibrator for the ultrasonic wave that each ultrasonic vibrator produced can both wash the material in the cleaning medium, thereby has improved the utilization ratio of the energy.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a schematic diagram showing the arrangement of the ultrasonic vibrators according to the present invention.

Fig. 4 is a schematic view showing the structure of the present invention without the driving device and the feeding tube.

Fig. 5 is a schematic structural view showing a refining mechanism according to the present invention.

Reference numerals: 1. a support assembly; 2. cleaning the machine body; 21. cleaning the chamber; 22. a feed pipe; 23. a material discharge pipe; 24. an inner container; 25. mounting a plate; 3. an ultrasonic vibrator; 31. roughly washing the ultrasonic vibrator; 32. finely washing the ultrasonic vibrator; 4. a material homogenizing mechanism; 41. a drive device; 42. a material distributing box; 43. a rotating shaft; 44. a discharge pipe; 45. a connecting ring; 46. a connecting plate; 47. a bearing; 5. a water inlet pipe; 6. an overflow mechanism; 61. an overflow ring; 611. an overflow groove; 62. an impurity overflow pipe; 63. a mesh plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the ultrasonic cleaning machine disclosed by the present invention comprises a supporting component 1 and a cleaning machine body 2, wherein the cleaning machine body 2 is installed on the supporting component 1, a cleaning chamber 21 for material cleaning is arranged in the cleaning machine body 2, the cleaning machine body 2 is provided with a plurality of ultrasonic vibrators 3 for transmitting ultrasonic waves into the cleaning chamber 21, and the plurality of ultrasonic vibrators 3 are distributed in an interlayer of the cleaning machine body 2.

The ultrasonic vibrators 3 convert high-frequency electric energy into vibration mechanical energy through the conversion of piezoelectric ceramics, and transmit the vibration mechanical energy to the cleaning medium through the inner wall of the cleaning machine body 2, so that the cleaning medium continuously generates a large amount of micro bubbles with the diameter of 50-500 mu m, the micro bubbles in the medium vibrate under the action of a sound field, and when the sound pressure reaches a certain value, the bubbles rapidly increase and then are suddenly closed. And when the air bubble is closed, shock wave is generated, thousands of atmospheric pressure is generated around the air bubble, the connection between the dirt and the plastic fragments is broken, and the effect of cleaning the dirt and impurities on the plastic fragments is generated.

A feeding pipe 22 is arranged at one side of the cleaning machine body 2, and a material discharging pipe 23 is arranged at the other side. The interlayer of the cleaning machine body 2 close to one end of the feeding pipe 22 is provided with a rough cleaning ultrasonic vibrator 31, the interlayer of the cleaning machine body 2 close to one end of the material discharging pipe 23 is provided with a fine cleaning ultrasonic vibrator 32, and the resonance frequency of the fine cleaning ultrasonic vibrator 32 is greater than that of the rough cleaning ultrasonic vibrator 31.

In this embodiment, the model of the rough-washing ultrasonic vibrator 31 is CW-4GL-3828, the model of the fine-washing ultrasonic vibrator 32 is CW-4GL-3840, and the arrangement of the ultrasonic vibrators 3 is ordered. Referring to fig. 3, the inner wall of the cleaning assembly is provided with 12 surfaces, 40 CW-4GL-3828 rough-cleaning ultrasonic vibrators and 40 CW-4GL-3840 fine-cleaning ultrasonic vibrators are arranged on each surface, and 480 rough-cleaning ultrasonic vibrators 31 and 480 fine-cleaning ultrasonic vibrators 32 are arranged in rows.

The resonance frequency of the rough-washing ultrasonic vibrator 31 arranged on the cleaning machine body 2 is a 28kHz vibrator, the material is roughly washed, and the ultrasonic waves generate large bubbles in a cleaning medium, so that impurities on the surface of the material can be removed. The resonance frequency of the fine cleaning ultrasonic vibrator 32 arranged below the cleaning machine body 2 is 40kHz vibrator, the material is subjected to fine cleaning, and ultrasonic waves generate small and dense bubbles in a cleaning medium and act on gaps of the material, so that impurities in the gaps of the material can be removed. Firstly, the materials are washed more cleanly through rough washing and then fine washing, and the cleanliness of the surfaces of the materials is better.

An inner container 24 is arranged in the cleaning chamber 21, the inner container 24 and the cleaning machine body 2 are coaxially arranged, and the outer wall of the inner container 24 and the inner wall of the cleaning machine body 2 form the cleaning chamber 21. In this embodiment, a plurality of mounting plates 25 are uniformly and fixedly connected to the outer side of the inner container 24, and the other end of the mounting plate 25 is fixed on the inner wall of the washing chamber 21, so that the inner container 24 is fixed in the washing machine body 2. Form annular washing chamber 21 between the outer wall of inner bag 24 and the inner wall of washing machine body 2 for the material through same horizontal plane in the unit interval still less compares in the ordinary cleaning machine that does not set up the inner bag, owing to wash the reduction in space, has avoided piling up of material, makes each material can both wash fully when wasing. Wherein, inner bag 24 makes annular cleaning chamber 21's space more even with the coaxial setting of cleaning machine body 2 to guarantee that the material can evenly distributed in annular cleaning chamber 21, further promoted the cleaning performance of ultrasonic wave to the material.

One end of the inner container 24 close to the feeding pipe 22 is arranged in an inverted cone shape, and a material homogenizing mechanism 4 is arranged between the feeding pipe 22 and the inner container 24. The material enters the material homogenizing mechanism 4 through the feeding pipe 22, primary material distribution is carried out under the action of the material homogenizing mechanism 4, the uniformly distributed material slides downwards on the conical surface of the inner container 24, secondary material distribution is carried out, and the material uniformly enters the annular cleaning cavity 21 under the action of gravity. Conical inner bag 24 has realized the effect that the secondary divided the material on the one hand, and on the other hand compares in not setting up the inner bag 24 of conical surface, and it has guaranteed that each material can both fall into washing cavity 21 in, has avoided the phenomenon that the material falls in inner bag 24 top, has improved the rate of recovery of material.

The even distribution of material is in annular washing cavity 21, the material is by the in-process of going forward down of washing cavity's top, earlier carry out the rough washing under the effect of rough washing ultrasonic vibrator 31, carry out the fine washing by fine washing ultrasonic vibrator 32 again, the surface area increase that the material exposes in the cleaning process, the piling up of material has been avoided, the cleaning performance of each piece of material can be promoted on the one hand, on the other hand can be furthest utilize ultrasonic vibrator 3, make the ultrasonic wave that each ultrasonic vibrator 3 produced can both wash the material in the cleaning medium, thereby the utilization ratio of the energy has been improved.

Referring to fig. 2 and 4, the material homogenizing mechanism 4 includes a driving device 41, a material distributing box 42, a rotating shaft 43, and a material discharging pipe 44, wherein the material distributing box 42 is installed on the washing machine body 2 and is communicated with the material feeding pipe 22. The driving device 41 is used for driving the rotating shaft 43 to rotate in the material distribution box 42, the discharge pipe 44 is detachably fixed at one end, far away from the driving device 41, of the rotating shaft 43, two ends of the discharge pipe 44 are respectively communicated with the material distribution box 42 and the cleaning chamber 21, and a discharge hole of the discharge pipe 44 is obliquely arranged.

During the introduction of material into the cleaning chamber 21, material is introduced from the inlet pipe 22 into the distribution box 42, while the drive 41 rotates the rotary shaft 43, which rotates the inclined outlet pipe 44 with the rotary shaft 43. The discharge hole of the discharge pipe 44 makes a circular motion with the central axis of the inner container 24 as the center of a circle, the material enters the discharge pipe 44 through the material distribution box 42, and the material uniformly enters the annular cleaning chamber 21 under the action of the centrifugal force of the rotating discharge pipe 44.

When the rotating shaft 43 rotates faster, the material falls into the annular cleaning chamber 21 directly and uniformly under the action of strong centrifugal force, and when the rotating shaft 43 rotates slower, the material falls slowly and is uniformly distributed on the conical surface of the inner container 24, and then falls into the annular cleaning chamber 21 under the action of gravity. The refining mechanism 4 is the cooperation between the back taper inner bag 24 with one end, can further guarantee that the material evenly falls into annular washing cavity 21 for each material abluent more abundant, thereby promoted abluent effect.

Referring to fig. 5, the refining mechanism 4 further includes a connection ring 45 and a plurality of connection plates 46, one end of the connection ring 45 is fixedly connected to the discharge pipe 44, the connection ring 45 is coaxially and fixedly connected to the rotating shaft 43 through the plurality of connection plates 46, and the plurality of connection plates 46 are uniformly distributed outside the rotating shaft 43.

Go-between 45 and connecting plate 46 have not only realized fixing discharging pipe 44 in the one end of (mixing) shaft, make discharging pipe 44 can follow the effect that the (mixing) shaft rotated together, a plurality of connecting plate 46 evenly distributed are in the outside of rotation axis 43 simultaneously, one end and rotation axis 43 fixed connection, the other end and the inner wall fixed connection of go-between 45, a plurality of connecting plates 46 cut apart into the feed inlet that the size is the same with go-between 45, when rotation axis 43 drives go-between 45 when rotating, the material can evenly pass through each feed inlet and fall into the discharging pipe 44 of below, the effect of preliminary branch material has been realized, the homogeneity of material dispersion in discharging pipe 44 has been improved.

In this embodiment, the driving device 41 is configured as a speed reduction motor, and the speed reduction motor is arranged to enable the rotating shaft 43 to adjust the speed change during rotation so as to adapt to different quantities of materials, thereby improving the cleaning effect of the materials and the service life of the speed reduction motor on the basis of ensuring that the materials are uniformly distributed in the annular cleaning chamber 21. Wherein, the rotating shaft 43 is rotatably arranged in the material distribution box 42 through a bearing 47, and one end of the rotating shaft 43 penetrates through the material distribution box 42 and the bearing 47 and then is in transmission connection with the speed reducing motor.

The bottom of the cleaning machine body 2 is provided with a water inlet mechanism, the top of the cleaning machine body 2 is provided with an overflow mechanism 6, and the water inlet mechanism and the overflow mechanism 6 are respectively communicated with the cleaning chamber 21. Mechanism of intaking through 2 bottoms of cleaning machine body constantly pours into the cleaning medium into toward cleaning chamber 21 into, and impurity collects under the effect of buoyancy and the cleaning medium's of newly pouring into effect at the surface of cleaning medium, along with constantly rising of liquid level in the cleaning chamber 21, impurity can get rid of through overflow mechanism 6 to avoided the impurity of being got rid of to get into one process down on the material attached to, guaranteed the cleaning performance of the interior material of cleaning chamber 21.

In the present embodiment, further, the water inlet mechanism is configured as a water inlet pipe 5, and one end of the water inlet pipe 5 is communicated with the washing chamber 21. The overflow mechanism 6 includes an overflow ring 61, an impurity overflow pipe 62 and a plurality of net plates 63, the overflow ring 61 is fixed on the outer side of the washing machine body 2 and forms an overflow groove 611 with the outer wall of the washing machine body 2, the plurality of net plates 63 are detachably fixed on the washing machine body 2, and the impurity overflow pipe 62 is fixed on the overflow ring 61 and is communicated with the overflow groove 611.

The cleaning medium is introduced into the cleaning chamber 21 from the water inlet pipe 5 at the bottom of the cleaning machine body 2, and as the liquid level rises, the impurities float on the surface of the liquid level and enter the overflow groove 611 of the overflow ring 61 through the mesh plate 63 together with some cleaning medium, and then are discharged through the impurity overflow pipe 62. Wherein, evenly set up on the otter board 63 by a plurality of less through-holes, can make impurity and cleaning medium pass in the through-hole overflow to overflow recess 611 on the one hand, on the other hand can prevent that the material from running out, guarantees the rate of recovery of material.

The implementation principle of the embodiment is as follows: when materials are cleaned, the materials are uniformly conveyed into the cleaning cavity 21 through the material conveying device, liquid cleaning media are arranged in the cleaning cavity 21, and when the materials pass through the cleaning cavity 21 filled with the cleaning media, ultrasonic waves generated by the ultrasonic vibrators form a cavitation effect in the cleaning media to clean the materials. Compare in traditional stirring abluent mode, utilize the ultrasonic wave that ultrasonic vibrator 3 produced to wash the material, promoted the cleaning performance of material, reduced the abluent cost of material.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. The utility model provides an ultrasonic cleaning machine, includes supporting component (1) and cleaning machine body (2), cleaning machine body (2) are installed on supporting component (1), set up in cleaning machine body (2) and be used for abluent washing cavity (21) of material, its characterized in that: the cleaning machine body (2) is provided with a plurality of ultrasonic vibrators (3) used for sending ultrasonic waves to the cleaning cavity (21), and the plurality of ultrasonic vibrators (3) are distributed in an interlayer of the cleaning machine body (2).

2. An ultrasonic cleaning machine according to claim 1, wherein: a feeding pipe (22) is arranged on one side of the cleaning machine body (2), and a material discharging pipe (23) is arranged on the other side of the cleaning machine body;

be close to inlet pipe (22) one end for rough washing ultrasonic vibrator (31) in the intermediate layer of cleaning machine body (2), be close to material discharge pipe (23) one end for fine washing ultrasonic vibrator (32) in the intermediate layer of cleaning machine body (2), the resonant frequency of fine washing ultrasonic vibrator (32) is greater than the resonant frequency of rough washing ultrasonic vibrator (31).

3. An ultrasonic cleaning machine according to claim 2, wherein: an inner container (24) is arranged in the cleaning cavity (21), the inner container (24) and the cleaning machine body (2) are coaxially arranged, and the outer wall of the inner container (24) and the inner wall of the cleaning machine body (2) form the cleaning cavity (21).

4. An ultrasonic cleaning machine according to claim 3, wherein: the inner container (24) is close to one end of the feeding pipe (22) and is arranged in an inverted cone shape.

5. An ultrasonic cleaning machine according to claim 3, wherein: a material homogenizing mechanism (4) is arranged between the feeding pipe (22) and the inner container (24).

6. An ultrasonic cleaning machine according to claim 5, wherein: the refining mechanism (4) comprises a driving device (41), a material distribution box (42), a rotating shaft (43) and a material discharge pipe (44), wherein the material distribution box (42) is installed on the cleaning machine body (2) and is communicated with the material feed pipe (22);

drive arrangement (41) are used for the drive rotation axis (43) are in divide workbin (42) internal rotation, discharging pipe (44) can be dismantled and fix rotation axis (43) are kept away from the one end of drive arrangement (41), the both ends of discharging pipe (44) respectively with divide workbin (42) and wash cavity (21) intercommunication, the discharge gate of discharging pipe (44) is the slope setting.

7. An ultrasonic cleaning machine according to claim 6, wherein: the refining mechanism (4) further comprises a connecting ring (45) and a plurality of connecting plates (46), one end of the connecting ring (45) is fixedly connected with the discharge pipe (44), the connecting ring (45) is coaxially and fixedly connected with the rotating shaft (43) through the plurality of connecting plates (46), and the plurality of connecting plates (46) are uniformly distributed on the outer side of the rotating shaft (43).

8. An ultrasonic cleaning machine according to claim 1, wherein: the bottom of the cleaning machine body (2) is provided with a water inlet mechanism, the top of the cleaning machine body (2) is provided with an overflow mechanism (6), and the water inlet mechanism and the overflow mechanism (6) are respectively communicated with the cleaning chamber (21).

9. An ultrasonic cleaning machine according to claim 8, wherein: the overflow mechanism (6) comprises an overflow ring (61), an impurity overflow pipe (62) and a plurality of screen plates (63), the overflow ring (61) is fixed on the outer side of the cleaning machine body (2) and forms an overflow groove (611) with the outer wall of the cleaning machine body (2), the screen plates (63) are detachably fixed on the cleaning machine body (2), and the impurity overflow pipe (62) is fixed on the overflow ring (61) and communicated with the overflow groove (611).