CN211488805U

CN211488805U - Cleaning tank for cleaning metal workpiece

Info

Publication number: CN211488805U
Application number: CN201922499242.0U
Authority: CN
Inventors: 金祺
Original assignee: Shanghai Wanlin Machinery Manufacturing Co Ltd
Current assignee: Shanghai Wanlin Machinery Manufacturing Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-15
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a metal work piece washs uses washing tank uses in work piece washing technical field, and its technical scheme main points are: including cell body and steel sheet net, the cell body respectively is equipped with two fixed pulleys along width direction's both sides top, the steel sheet net is equipped with rings along width direction's both sides, the inside both sides along width direction of cell body respectively are equipped with two lifting ropes, the lifting rope bottom is equipped with the lifting hook, the lifting hook is hung and is established on rings, the cell body respectively is equipped with two supporting seats along width direction's both sides, it is connected with the dish rope roller to rotate on the supporting seat, be equipped with the motor on the supporting seat, the motor shaft of motor is connected with the one end of dish rope roller, the lifting rope upwards extends the cell body and walks around behind the fixed pulley, coil on the dish rope roller, one side bottom of length direction is equipped. The utility model discloses the technical effect who has is: the mode of going up and down the steel plate net through the automation has made things convenient for the work piece of taking, has brought very big facility for the cleaning work of work piece, has improved work efficiency.

Description

Cleaning tank for cleaning metal workpiece

Technical Field

The utility model relates to a work piece washs technical field, in particular to metal work piece washs and uses washing tank.

Background

In the process of processing the metal workpiece, various oil stains can be stained on the surface of the metal workpiece, before the metal workpiece leaves a factory, in order to make the appearance of the metal workpiece clean and beautiful, the metal workpiece needs to be cleaned by using a cleaning solution, and generally, a factory is provided with a cleaning tank for cleaning the workpiece.

Chinese patent with publication number CN202516806U discloses a work piece washs case, and its structure includes the box, and the box is placed on the landing leg, and the valve is installed to the bottom half, is provided with the bottom grid tray on the bottom surface in the box, has space gap between bottom grid tray and the bottom surface of the box, and the tiling has the steel sheet net on the bottom grid tray, and the drippage shelf has been placed at the top of box.

The above prior art solutions have the following drawbacks: the existing workpiece cleaning box is characterized in that workpieces are placed on a steel plate net, cleaning liquid needs to be drained away firstly after cleaning, then the workpieces are taken out of the steel plate net manually one by one, and the operation is extremely inconvenient and low in efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a metal work piece washs uses washing tank, its advantage: the mode of going up and down the steel plate net through the automation has made things convenient for the work piece of taking, has brought very big facility for the cleaning work of work piece, has improved work efficiency.

The above technical purpose of the present invention can be achieved by the following technical solutions: a cleaning tank for cleaning metal workpieces comprises a tank body and a steel plate net arranged in the tank body, wherein two fixed pulleys are respectively arranged at the tops of two sides of the tank body in the width direction, the two fixed pulleys are arranged at two ends of the top of the tank body in the length direction, two lifting rings are respectively arranged at two sides of the steel plate net in the width direction, two lifting ropes are respectively arranged at two sides of the tank body in the width direction, lifting hooks are arranged at the bottoms of the lifting ropes and hung on the corresponding lifting rings, two supporting seats are respectively arranged on the ground of two sides of the tank body in the width direction, a rope coiling roller is rotatably connected on each supporting seat, a motor is further arranged on each supporting seat, a motor shaft of the motor is connected with one end of the rope coiling roller, the lifting ropes extend upwards out of the tank body and are coiled on the rope coiling roller after bypassing the fixed pulleys, a drain pipe is arranged at the bottom of one, and a water inlet pipe is arranged at the top of one side of the trough body, which is far away from the sewage discharge pipe.

Through the technical scheme, a workpiece to be cleaned is placed on a steel plate net, then the four motors are synchronously started, a rope roller is driven to rotate by a motor shaft of each motor, a lifting rope is released, the steel plate net is lowered to the bottom of a groove body, an operator sprays cleaning liquid onto the workpiece, then opens a water inlet pipe, keeps a drain pipe in a closed state, and introduces tap water into the groove body through the water inlet pipe, the mixed cleaning liquid cleans the workpiece to remove various greasy dirt on the surface of the workpiece, after the workpiece is cleaned, the four motors are synchronously started to reversely rotate again to lift the steel plate net upwards, so that the operator can take the workpiece off the steel plate net, the steel plate net can be used for airing the workpiece after being lifted upwards, and the workpiece can be taken off after being aired to prevent the ground from being wet due to water drops and is inconvenient to clean on the ground; the mode of going up and down the steel plate net through the automation has made things convenient for the work piece of taking, has brought very big facility for the cleaning work of work piece, has improved work efficiency.

The utility model discloses further set up to: and stay bars are arranged on two sides of the steel plate net along the width direction, stay wheels are arranged on the stay bars, and guide rails for the stay wheels to roll up and down are arranged on the inner wall of the tank body along the vertical direction.

Through above-mentioned technical scheme, the in-process of steel sheet net oscilaltion drives the vaulting pole of both sides and reciprocates to the vaulting wheel and the guide rail that set up to the cooperation vaulting pole reciprocates, plays the effect of supporting the both sides of steel sheet net, in order to reduce steel sheet net oscilaltion in-process, toward the possibility of one side skew, has improved the stationarity that steel sheet net removed.

The utility model discloses further set up to: the water inlet pipe is arranged on the bottom of the tank body, the cleaning pipes are arranged at the bottom of the tank body along the length direction and are communicated to the water inlet pipe, a first water inlet valve is arranged between the water inlet pipe and the cleaning pipes, and a plurality of water spraying ports are formed in the cleaning pipes.

Through the technical scheme, the first water inlet valve is used for controlling the circulation of tap water, when the workpiece is cleaned, the first water inlet valve is opened, the tap water is sent into the plurality of cleaning pipes through the water inlet pipe and then is uniformly sprayed onto the workpiece upwards through the plurality of water spraying openings, and therefore powerful spraying can be carried out on the workpiece, and the cleaning effect on the workpiece is improved.

The utility model discloses further set up to: the bottom of cell body is provided with a plurality of faggings along width direction, the height that highly is higher than the scavenge pipe of fagging.

Through above-mentioned technical scheme, a plurality of faggings are used for supporting the steel sheet net, keep having sufficient spraying space between steel sheet net and the scavenge pipe to can prevent effectively that the steel sheet net from crushing the scavenge pipe, still can avoid the steel sheet net to plug up the water jet simultaneously, lead to the unable normal water spray of water jet.

The utility model discloses further set up to: the submerged agitator is arranged on the inner walls of the two sides of the tank body along the length direction, and a plurality of flow baffle plates are arranged on the periphery of the inner wall of the tank body along the vertical direction.

By the technical scheme, the submersible mixer works normally, so that water in the tank body can move and turn violently, and the water repeatedly impacts on a workpiece to accelerate the stripping of oil stains on the surface of the workpiece and improve the cleaning efficiency; in addition, because the water body is easy to swirl during stirring, the state that the surrounding turbulence is formed and the central water body is relatively static can form a dead angle at the central position, thereby greatly influencing the cleaning effect of the workpiece, and the swirl baffle plate can effectively prevent the swirling condition from happening so as to ensure the normal cleaning of the workpiece.

The utility model discloses further set up to: the utility model discloses a heating device, including cell body, heating tank, heating rod, the cell wall bottom of cell body is provided with a plurality of drain pipes that communicate with the heating tank, and a plurality of water injection pipes all are provided with the water injection pipe, and is a plurality of the water injection pipe all communicates to on the inlet tube, be provided with the second water intaking valve between inlet tube and the water injection pipe.

According to the technical scheme, the second water inlet valve is opened, tap water is introduced into the heating tank, the water in the heating tank is directly heated through the heating rod, and then the water in the tank body is indirectly heated through a heat transfer mode, so that the temperature of the water in the tank body is increased, the cleaning liquid fully achieves the optimal dissolving and cleaning effect, and the cleaning efficiency of workpieces is improved; in addition, the purpose of setting up the heating tank alone is in order to separate the sewage in heating rod and the cell body, to prevent that the dirt in the sewage from adsorbing on the heating rod surface after long-term operation, and lead to the heating rod unable normal heat dissipation and damage, thereby prolonged the life of heating rod.

The utility model discloses further set up to: the inner wall upper portion of cell body is provided with the shower along the periphery, the shower bottom is provided with a plurality of spray nozzles towards the cell body inner wall, the shower communicates to the inlet tube on, be provided with the third water inlet valve between inlet tube and the shower.

Through above-mentioned technical scheme, after the work piece washs the completion, take out the work piece, then discharge away the sewage in the cell body through the blow off pipe, need wash the greasy dirt and the washing liquid of adhesion on cell body inner wall and diapire this moment to guarantee the inside cleanness of cell body, can open the third water inlet valve this moment, the running water lets in the shower by the inlet tube in, spouts to the cell body inner wall through a plurality of spray nozzles on, so that wash the cell body.

The utility model discloses further set up to: the cleaning device is characterized in that a liquid storage tank for storing cleaning liquid is arranged on the outer wall of one side of the tank body along the length direction, a liquid pump is arranged in the liquid storage tank, a liquid pumping pipe is connected to the liquid outlet of the liquid pumping pump, the liquid pumping pipe extends upwards out of the liquid storage tank and then is communicated to the cleaning pipe, and a liquid inlet valve is arranged between the liquid pumping pipe and the cleaning pipe.

Through above-mentioned technical scheme, deposit the liquid groove and be used for depositing the washing liquid, to the work piece cleaning process, can start the drawing liquid pump to open the feed liquor valve, deposit the washing liquid in the liquid groove alright send into in the cleaning tube through the drawing liquid pipe, mix the back with the running water and spray to the work piece through the water jet on, thereby need not operating personnel and spray the washing liquid to the work piece alone in advance, in order to alleviate work load, improve work piece cleaning efficiency.

To sum up, the utility model discloses following beneficial effect has:

1. the mode of automatically lifting the steel plate net is realized, so that the workpiece is convenient to take and place, great convenience is brought to the cleaning work of the workpiece, and the working efficiency is improved;

2. the support rods on the two sides play a role in supporting the two sides of the steel plate net so as to reduce the possibility of deviation to one side in the up-and-down lifting process of the steel plate net and improve the up-and-down moving stability of the steel plate net;

3. in the work piece cleaning process, the washing liquid in the liquid pumping groove is pumped into the washing pipe through the liquid pumping pump and is mixed with tap water and then is sprayed onto the work piece through the water spraying opening, so that an operator is not required to spray the washing liquid to the work piece independently in advance, the workload is reduced, and the work piece cleaning efficiency is improved.

Drawings

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

Fig. 2 is a schematic structural diagram for embodying the inside of the tank body in the present embodiment.

Fig. 3 is an enlarged view of a portion a in fig. 2.

FIG. 4 is a schematic structural view of the present embodiment for showing the interior of the liquid tank.

Reference numerals: 1. a trough body; 2. steel plate nets; 3. a fixed pulley; 4. a hoisting ring; 5. a lifting rope; 6. a hook; 7. a supporting seat; 8. rope coiling rollers; 9. a motor; 10. a blow-off pipe; 11. a water inlet pipe; 12. a stay bar; 13. supporting a wheel; 14. a guide rail; 15. cleaning the tube; 16. a first water inlet valve; 17. a water jet; 18. a supporting plate; 19. a submersible mixer; 20. a flow baffle plate; 21. surrounding edges; 22. a heating tank; 23. a heating rod; 24. a drain pipe; 25. a water injection pipe; 26. a second water inlet valve; 27. a shower pipe; 28. a spray nozzle; 29. a third water inlet valve; 30. a liquid storage tank; 31. a liquid pump; 32. a liquid pumping pipe; 33. a liquid inlet valve; 34. channel steel; 35. a U-shaped hoop.

Detailed Description

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

Example (b): the utility model provides a metal work piece washs and uses washing tank, as figure 1 and figure 2, including cell body 1 and steel sheet net 2, the bottom of cell body 1 is supported subaerial through channel-section steel 34, cell body 1 is provided with blow off pipe 10 along one side bottom of length direction, the opposite side top is provided with inlet tube 11, inlet tube 11 is connected to outside water supply line, the bottom of cell body 1 is provided with a plurality of scavenge pipes 15 along the length direction interval, a plurality of water jets 17 (as figure 3) have been seted up on the scavenge pipe 15, a plurality of scavenge pipes 15 converge into behind a scavenge pipe 15, communicate on inlet tube 11, and be provided with first water intaking valve 16 in the intercommunication position department with inlet tube 11, the bottom of cell body 1 is provided with a plurality of faggings 18 along the width direction interval, fagging 18 perpendicular to. Meanwhile, a liquid storage tank 30 is further arranged on the outer wall of one side of the tank body 1 in the length direction, cleaning liquid for mixing the cleaning liquid into tap water and then cleaning the workpiece is stored in the liquid storage tank 30, a liquid pumping pump 31 (shown in fig. 4) is arranged on the bottom wall of the inner cavity of the liquid storage tank 30, a liquid pumping pipe 32 is connected to a liquid outlet of the liquid pumping pump 31, the liquid pumping pipe 32 extends upwards to the liquid storage tank 30 and then is communicated to the cleaning pipe 15, and a liquid inlet valve 33 is arranged on the liquid pumping pipe 32.

Referring to fig. 2 and 3, in addition, two hanging rings 4 are respectively arranged on two sides of the steel plate net 2 along the width direction, four fixed pulleys 3 corresponding to the hanging rings 4 are respectively arranged on the tops of two sides of the tank body 1 along the width direction, two supporting seats 7 are respectively arranged on the ground of two sides of the tank body 1 along the width direction, the supporting seats 7 are fixed on the ground, the supporting seats 7 correspond to the positions of the fixed pulleys 3, a rope coiling roller 8 is rotatably connected to the supporting seats 7 along the length direction of the tank body 1, a hanging rope 5 is wound on the rope coiling roller 8, the hanging rope 5 extends upwards to the fixed pulleys 3 after being pulled out from the rope coiling roller 8 and then downwards extends to the inside of the tank body 1 after passing through the fixed pulleys 3, a hanging hook 6 is arranged at one end of the hanging rope 5 in the tank body 1, the hanging hook 6 can be hung on the corresponding hanging ring 4, and a motor 9 for driving the rotation of the rope, the motor shaft of the motor 9 is connected with one end of the rope coiling roller 8.

As shown in fig. 1 and 2, during operation, an operator firstly places a workpiece to be cleaned on a steel plate net 2, then synchronously starts four motors 9, drives a rope roller 8 to rotate through a motor shaft of each motor 9, further releases a lifting rope 5, lowers the steel plate net 2 to the bottom of a tank body 1 until the steel plate net 2 is erected on a supporting plate 18, at the moment, closes the motors 9, then opens a first water inlet valve 16, and sends tap water into a cleaning pipe 15 through a water inlet pipe 11, and then opens a liquid inlet valve 33, and starts a liquid pump 31 (as shown in fig. 4), so that cleaning liquid in a liquid storage tank 30 is pumped into the cleaning pipe 15 through a liquid pumping pipe 32, and is uniformly sprayed upwards to the surface of the workpiece through a plurality of water spray nozzles 17 (as shown in fig. 3) after being mixed with the tap water, and oil stains on the surface of the workpiece can be cleaned.

As shown in figure 1, the inner walls of the two sides of the tank body 1 in the length direction are both provided with the submersible mixers 19, so that in the process of cleaning the workpiece, when water in the tank body 1 overflows the submersible mixers 19, an operator can start the submersible mixers 19, so that the water in the tank body 1 moves, and is violently turned, so that the water repeatedly impacts on the workpiece, the stripping of oil stains on the surface of the workpiece is accelerated, and the cleaning efficiency is improved. In addition, because the water body is easy to swirl during stirring, the peripheral turbulence is formed, the central water body is relatively static, and a dead angle is formed at the central position, so that the cleaning effect on the workpiece is greatly influenced.

As shown in fig. 1, two heating rods 23 are respectively arranged on the inner walls of two sides of the tank body 1 along the length direction, the heating rods 23 are vertically inserted into the tank body 1, a surrounding edge 21 surrounding the heating rods 23 is arranged on the inner wall of the tank body 1, the top of the surrounding edge 21 is open, the bottom of the surrounding edge extends downwards to the bottom wall of the tank body 1 and is fixed with the bottom wall of the tank body 1 in a sealing manner, so that a closed heating tank 22 is formed between the surrounding edge 21 and the tank wall of the tank body 1, a water injection pipe 25 is arranged above the heating tank 22, the water injection pipe 25 is communicated to the water inlet pipe 11, a second water inlet valve 26 is arranged on the water injection pipe 25, and a water discharge pipe 24 extending out. Therefore, in the process of cleaning the workpiece, an operator can open the second water inlet valve 26 to inject tap water into the heating tank 22, a proper amount of tap water is required without filling the heating tank 22, so that the situation that the water temperature is too high after heating and splashes out to scald workers is avoided, after a certain amount of tap water is added, the second water inlet valve 26 is closed, the heating rod 23 is electrified to directly heat the water in the heating tank 22, the water in the tank body 1 is indirectly heated in a heat transfer mode after the water temperature in the heating tank 22 rises, the temperature of the water in the tank body 1 is increased, the cleaning liquid fully achieves the optimal dissolving and cleaning effect, and the cleaning efficiency of the workpiece is further improved.

As shown in fig. 1, the heating tank 22 is provided to separate the heating rod 23 from the sewage in the tank body 1, so as to prevent the dirt in the sewage from being adsorbed on the surface of the heating rod 23 after long-term operation, which may result in the failure of normal heat dissipation of the heating rod 23 and damage thereof, thereby prolonging the service life of the heating rod 23. During the use of the heating rod 23, the water in the heating tank 22 needs to be replaced periodically to introduce new tap water, so as to further protect the heating rod 23.

As shown in fig. 1, after the workpiece is cleaned, an operator can synchronously start the four motors 9 to rotate reversely again, and then lift the steel plate mesh 2 to the upper part of the tank body 1, so that the cleaned workpiece can be taken down from the steel plate mesh 2. In addition, steel sheet net 2 promotes the back upwards, also can be used to drying of work piece, waits the work piece and stews and dries the back, takes off again, can prevent that the water droplet from causing ground humidity on ground, inconvenient clearance.

As shown in fig. 3, the two side walls of the steel plate net 2 along the width direction are both provided with a support rod 12, the support rod 12 is provided with a support wheel 13, and the inner walls of the two sides of the groove body 1 along the width direction are vertically provided with a guide rail 14 for the support wheel 13 to roll up and down, so that in the process that the steel plate net 2 moves up and down, the two sides of the steel plate net 2 can be supported by the support rods 12 on the two sides, the steel plate net 2 is prevented from moving up and down and is prevented from moving to one side, and the moving stability of the steel plate net 2 is improved.

As shown in fig. 1 and 2, when the workpiece is cleaned and the workpiece is also taken down from the steel plate net 2, an operator can drain the sewage in the tank body 1 through the sewage discharge pipe 10, and of course, many greasy dirt and impurities and cleaning solution are adhered to the bottom wall and the side wall of the tank body 1, which is inconvenient to clean. Through set up shower 27 along the periphery in the inner wall upper portion of cell body 1, shower 27 fixes through U type hoop 35, shower 27 bottom is provided with a plurality of spray nozzles 28 towards the 1 inner wall of cell body, and shower 27 communicates to on the inlet tube 11, and be provided with third water inlet valve 29 between inlet tube 11 and shower 27, thereby operating personnel can open third water inlet valve 29, the running water lets in shower 27 by inlet tube 11, spout on the 1 inner wall of cell body through a plurality of spray nozzles 28, thereby can wash greasy dirt and the washing liquid of adhesion on cell body 1 inner wall and diapire, in order to guarantee the inside clean of cell body 1.

The working process is as follows: at first place on steel sheet net 2 waiting to wash the work piece, then four motors 9 of synchronous start, drive the rotation of disk rope roller 8 through the motor shaft of motor 9, and then release lifting rope 5, descend steel sheet net 2 to the cell body 1 bottom and arrange in fagging 18, upwards spray tap water and washing liquid to the work piece by water jet 17 after that, wash the work piece, in order to clear away the various greasy dirt on workpiece surface, treat that the work piece washs the completion after, four motors 9 of synchronous start reversal once more, upwards promote steel sheet net 2, operating personnel alright conveniently take off the work piece from steel sheet net 2.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a metal work piece washs and uses washing tank, includes cell body (1) and sets up steel sheet net (2) in cell body (1), its characterized in that: the improved steel wire rope coiling machine is characterized in that two fixed pulleys (3) are respectively arranged at the tops of two sides of the tank body (1) in the width direction, the two fixed pulleys (3) are arranged at the two ends of the top of the tank body (1) in the length direction, two lifting ropes (5) are respectively arranged at two sides of the tank body (1) in the width direction, lifting hooks (6) are arranged at the bottoms of the lifting ropes (5), the lifting hooks (6) are hung on the corresponding lifting rings (4), two supporting seats (7) are respectively arranged on the ground of two sides of the tank body (1) in the width direction, rope coiling rollers (8) are rotatably connected onto the supporting seats (7), a motor (9) is further arranged on each supporting seat (7), a motor shaft of the motor (9) is connected with one end of each rope coiling roller (8), and the lifting ropes (5) extend out of the tank body (1) upwards and bypass the fixed pulleys (3), the rope coiling roller (8) is coiled, a sewage discharge pipe (10) is arranged at the bottom of one side of the groove body (1) along the length direction, and a water inlet pipe (11) is arranged at the top of one side of the groove body (1) far away from the sewage discharge pipe (10).

2. The cleaning bath for cleaning a metal workpiece according to claim 1, wherein: the steel plate net is characterized in that support rods (12) are arranged on two sides of the steel plate net (2) in the width direction, support wheels (13) are arranged on the support rods (12), and guide rails (14) for the support wheels (13) to roll up and down are arranged on the inner wall of the groove body (1) in the vertical direction.

3. The cleaning bath for cleaning a metal workpiece according to claim 1, wherein: the cleaning device is characterized in that a plurality of cleaning pipes (15) are arranged at the bottom of the tank body (1) along the length direction, the cleaning pipes (15) are communicated to the water inlet pipe (11), a first water inlet valve (16) is arranged between the water inlet pipe (11) and the cleaning pipes (15), and a plurality of water spraying ports (17) are formed in the cleaning pipes (15).

4. A cleaning bath for cleaning a metal workpiece as defined in claim 3, wherein: the bottom of the tank body (1) is provided with a plurality of supporting plates (18) along the width direction, and the height of the supporting plates (18) is higher than that of the cleaning pipes (15).

5. The cleaning bath for cleaning a metal workpiece according to claim 1, wherein: the submerged mixer (19) is arranged on the inner walls of two sides of the tank body (1) along the length direction, and a plurality of flow baffle plates (20) are arranged on the periphery of the inner wall of the tank body (1) along the vertical direction.

6. The cleaning bath for cleaning a metal workpiece according to claim 1, wherein: the utility model discloses a heating water tank, including cell body (1), tank body (1) and heating rod (22), vertical a plurality of surrounding edges (21) that are provided with on the both sides inner wall along length direction, be formed with inclosed heating tank (22) between the cell wall of surrounding edge (21) and cell body (1), vertical the inserting is equipped with heating rod (23) in heating tank (22), the cell wall bottom of cell body (1) is provided with drain pipe (24) a plurality of and heating tank (22) intercommunication, and is a plurality of the top of heating tank (22) all is provided with water injection pipe (25), and is a plurality of water injection pipe (25) all communicate to on inlet tube (11), be provided with second water intaking valve (26) between inlet tube (11) and.

7. A cleaning bath for cleaning a metal workpiece as defined in claim 3, wherein: the inner wall upper portion of cell body (1) is provided with shower (27) along the periphery, shower (27) bottom is provided with a plurality of spray nozzles (28) towards cell body (1) inner wall, shower (27) communicate to on inlet tube (11), be provided with third water inlet valve (29) between inlet tube (11) and shower (27).

8. A cleaning bath for cleaning a metal workpiece as defined in claim 7, wherein: the cleaning device is characterized in that a liquid storage tank (30) used for storing cleaning liquid is arranged on the outer wall of one side of the tank body (1) in the length direction, a liquid pumping pump (31) is arranged in the liquid storage tank (30), a liquid pumping pipe (32) is connected to a liquid outlet of the liquid pumping pump (31), the liquid pumping pipe (32) extends upwards out of the liquid storage tank (30) and then is communicated to the cleaning pipe (15), and a liquid inlet valve (33) is arranged between the liquid pumping pipe (32) and the cleaning pipe (15).