CN210304850U

CN210304850U - Ultrasonic cleaning machine

Info

Publication number: CN210304850U
Application number: CN201921158742.1U
Authority: CN
Inventors: 王汝屹
Original assignee: Cangzhou Hongxin Stainless Steel Products Co Ltd
Current assignee: Cangzhou Hongxin Stainless Steel Products Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-04-14
Anticipated expiration: 2029-07-23

Abstract

The utility model relates to the technical field of cleaning accessories, in particular to an ultrasonic cleaning machine which has simple structure, is convenient for fishing out articles, accelerates the cleaning liquid to be separated from the articles and improves the working efficiency; the cleaning machine comprises a cleaning machine body, wherein the cleaning machine body comprises a machine body, a control box is arranged on the rear side of the machine body, a cleaning cavity is arranged in the machine body, a cleaning opening is formed in the top side wall of the machine body in a communicating manner, an ultrasonic generator is arranged on the side wall of the machine body, and universal wheels are arranged on the left front side, the right front side, the left rear side and the right rear side of the bottom side wall of the machine body; still include door type pole, slider, left bellows, first left fixed block, the left fixed block of second, left pneumatic cylinder, right bellows, first right fixed block, the right fixed block of second, right pneumatic cylinder and place the case, fuselage top lateral wall left end is provided with two sets of left connecting blocks, and two sets of left connecting block top lateral walls are provided with respectively about to two sets of left rotating grooves of intercommunication, and left bellows bottom is provided with two sets of left dwang.

Description

Ultrasonic cleaning machine

Technical Field

The utility model relates to a wash auxiliary device's technical field, especially relate to an ultrasonic cleaner.

Background

As is well known, in the principle of an ultrasonic cleaning machine, a high-frequency oscillation signal generated by an ultrasonic generator is converted into high-frequency mechanical oscillation by a transducer and is transmitted into a cleaning solvent, ultrasonic waves are radiated forward at intervals in a cleaning liquid to flow the liquid to generate tens of thousands of micro-bubbles, and the micro-bubbles existing in the liquid vibrate under the action of a sound field. The bubbles are formed and grown in a negative pressure area in which the ultrasonic wave is longitudinally transmitted, and in a positive pressure area, when the sound pressure reaches a certain value, the bubbles are rapidly increased and then suddenly closed, shock waves are generated when the bubbles are closed, thousands of atmospheric pressures are generated around the bubbles, and insoluble dirt is damaged to disperse the insoluble dirt in the cleaning liquid, so that the aim of purifying a cleaning part is fulfilled; the existing ultrasonic cleaning machine comprises a cleaning machine body, the cleaning machine body comprises a machine body, a control box is arranged on the rear side of the machine body, a cleaning cavity is arranged in the machine body, a cleaning opening is communicated with the top side wall of the machine body, an ultrasonic generator is arranged on the side wall of the machine body, and universal wheels are arranged on the left front side, the right front side, the left rear side and the right rear side of the bottom side wall of the machine body; when the existing ultrasonic cleaning machine is used, the four groups of universal wheels improve the moving capacity of the cleaning machine body, cleaning liquid is added into the machine body, an object to be cleaned is placed in the machine body, the control box controls the ultrasonic generator to emit ultrasonic waves, and the object is fished out after the cleaning is finished; the existing ultrasonic cleaning machine is found in use, so that the object is not convenient to fish out, and more cleaning liquid is attached to the object when the object is fished out, thereby influencing the working efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a simple structure is convenient for fish article out, and the washing liquid breaks away from article with higher speed, improves work efficiency's ultrasonic cleaner.

The utility model discloses an ultrasonic cleaner, including the cleaning machine body, the cleaning machine body includes the fuselage, and the fuselage rear side is provided with the control box, and the fuselage is inside to be provided with the washing chamber, and fuselage top lateral wall intercommunication is provided with the washing mouth, is provided with supersonic generator on the fuselage lateral wall, and fuselage bottom lateral wall left front side, right front side, left rear side and right rear side all are provided with the universal wheel; the left end of the top wall of the machine body is provided with two groups of left connecting blocks, the top walls of the two groups of left connecting blocks are respectively provided with two groups of left rotating grooves which are communicated in the left-right direction, the bottom of the left air bellow is provided with two groups of left rotating rods, the bottom ends of the two groups of left rotating rods are respectively connected with the two groups of left rotating grooves in a shaft manner, the first left fixing block is connected with the left side wall of the machine body, the second left fixing block is connected with the left air bellow, the left side walls of the first left fixing block and the second left fixing block are respectively provided with a left mounting groove and a left rotating groove which are communicated in the top-bottom direction, the top end and the bottom end of the left hydraulic cylinder are respectively connected with the left rotating grooves and the left mounting groove in a shaft manner, a left cavity is arranged inside the left air bellow, and the left air bellow and the right side wall are communicated with a plurality of groups of left, the right end of the top side wall of the machine body is provided with two groups of right connecting blocks, the top side wall of the two groups of right connecting blocks is respectively provided with two groups of right rotating grooves which are communicated in a right-left direction, the bottom of the right air box is provided with two groups of right rotating rods, the bottoms of the two groups of right rotating rods are respectively connected with the two groups of right rotating grooves, a first right fixed block is connected with the right side wall of the machine body, a second right fixed block is connected with the right air box, the right side walls of the first right fixed block and the second right fixed block are respectively provided with a right mounting groove and a right rotating groove which are communicated in a top-bottom direction, the top end and the bottom end of a right hydraulic cylinder are respectively connected with the inner side walls of the right rotating groove and the right mounting groove, a right cavity is arranged inside the right air box, the left side wall of the right air box, door type pole front end and rear end all are connected with the fuselage, the slider is provided with the slip hole, and door type pole passes the slip hole, and the slider right-hand member is provided with well pneumatic cylinder, place incasement portion and be provided with the cavity, place roof portion intercommunication and be provided with the opening, place the case lateral wall intercommunication and be provided with the multiunit and import and export, place the roof lateral wall and be provided with four groups of wire rope, four groups of wire rope other end all are connected with well pneumatic cylinder output.

The utility model discloses an ultrasonic cleaner still includes two sets of threaded rods, two sets of bases, two sets of nuts and two sets of carousels, lateral wall and back lateral wall all are provided with the go-between before the fuselage, two sets of threaded rods spiral shell dress respectively passes two sets of go-between, and the both ends of two sets of threaded rods respectively with a set of carousel and a set of the base is connected, two sets of nuts spiral shell dress respectively to two sets of threaded rods on.

The utility model discloses an ultrasonic cleaner, it is the hose to go out the tuber pipe.

The utility model discloses an ultrasonic cleaner, fan input intercommunication is provided with the rose box.

The utility model discloses an ultrasonic cleaner still includes the reinforcing plate, the top and the bottom of reinforcing plate are connected with platform and fuselage respectively.

The utility model discloses an ultrasonic cleaner, the slider top is provided with U type handle.

The utility model discloses an ultrasonic cleaner still includes the multiunit ball, the lateral wall is provided with two sets of ring channels in the sliding hole, inside most region of multiunit ball all was located two sets of ring channels, multiunit ball all contacted with the door type pole.

The utility model discloses an ultrasonic cleaner, fuselage bottom intercommunication is provided with the fluid-discharge tube, is provided with first valve and second valve on the fluid-discharge tube, is provided with the sight glass on the fluid-discharge tube.

Compared with the prior art, the beneficial effects of the utility model are that: under the mutual cooperation of the two groups of right connecting blocks and the two groups of right rotating rods, the right bellows can rotate, the right hydraulic cylinder inclines, under the mutual cooperation of the first right fixing block, the second right fixing block and the right hydraulic cylinder, the angle of the right bellows is changed by controlling the length of the output end of the right hydraulic cylinder, the angle of the left bellows is changed by similarly controlling the length of the output end of the left hydraulic cylinder, the sliding block can move along the door-shaped rod, the height of the placing box is controlled by controlling the length of the output end of the middle hydraulic cylinder, during operation, firstly, cleaning liquid is added into the machine body, the placing box moves to a proper position, then, an article to be cleaned is placed in the placing box, the hydraulic cylinder controls the placing box to descend to the inside of the cleaning liquid during operation, the cleaning liquid enters the placing box along a plurality of inlets and outlets to contact with the article to be, the pneumatic cylinder makes places case and article and rises to suitable height in the operation, then left pneumatic cylinder and right pneumatic cylinder make left bellows and right bellows to fuselage central zone slope, open the fan, wind blows off along multiunit left air outlet and multiunit right air outlet, will place case and article surface cleaning liquid and blow clean, then shift out place case and article can, simple structure is convenient for fish out article, the washing liquid breaks away from article with higher speed, improves work efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic view of the connection of a gate rod, a slider and a plurality of sets of balls;

FIG. 4 is a schematic connection diagram of the machine body, the right air box, the first right fixed block, the second right fixed block, the right hydraulic cylinder, the right connecting block, the right rotating rod, the drain pipe, the first valve, the second valve and the sight glass in a blowing state;

in the drawings, the reference numbers: 1. a body; 2. a control box; 3. an ultrasonic generator; 4. a gate-shaped rod; 5. a slider; 6. a right bellows; 7. a first right fixed block; 8. a second right fixed block; 9. a right hydraulic cylinder; 10. placing a box; 11. a right connecting block; 12. a right rotating rod; 13. a platform; 14. a fan; 15. an air outlet pipe; 16. a middle hydraulic cylinder; 17. a threaded rod; 18. a base; 19. a nut; 20. a turntable; 21. a connecting ring; 24. a filter box; 25. a reinforcing plate; 26. a ball bearing; 27. a liquid discharge pipe; 28. a first valve; 29. a second valve; 30. a sight glass; 31. a steel cord.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, the ultrasonic cleaning machine of the present invention comprises a cleaning machine body, the cleaning machine body comprises a machine body 1, a control box 2 is arranged at the rear side of the machine body 1, a cleaning cavity is arranged inside the machine body 1, a cleaning opening is arranged on the top side wall of the machine body 1 in a communicating manner, an ultrasonic generator 3 is arranged on the side wall of the machine body 1, and universal wheels are arranged on the left front side, the right front side, the left rear side and the right rear side of the bottom side wall of the machine body 1; the left side wall of the top side wall of the machine body 1 is provided with two groups of left connecting blocks, the top side walls of the two groups of left connecting blocks are respectively provided with two groups of left rotating grooves which are communicated in the left-right direction, the bottom of the left air box is provided with two groups of left rotating rods, the bottom ends of the two groups of left rotating rods are respectively connected with the two groups of left rotating groove shafts, the first left fixing block is connected with the left side wall of the machine body 1, the second left fixing block is connected with the left air box, the left side walls of the first left fixing block and the second left fixing block are respectively provided with a left mounting groove and a left rotating groove which are communicated in the top-bottom direction, the top end and the bottom end of the left hydraulic cylinder are respectively connected with the left rotating groove and the left inner side wall shaft, a left cavity is arranged inside the left air box, the right side wall of the left air box is communicated with a plurality of groups of left air outlets, the right end of the top side wall of the machine body 1 is provided with two groups of right connecting blocks 11, the top side wall of the two groups of right connecting blocks 11 is respectively provided with two groups of right rotating grooves which are communicated in a right-left direction, the bottom of the right air box 6 is provided with two groups of right rotating rods 12, the bottom ends of the two groups of right rotating rods 12 are respectively connected with the two groups of right rotating grooves, a first right fixed block 7 is connected with the right side wall of the machine body 1, a second right fixed block 8 is connected with the right air box 6, the right side walls of the first right fixed block 7 and the second right fixed block 8 are respectively provided with a right mounting groove and a right rotating groove which are communicated in a top-bottom direction, the top end and the bottom end of a right hydraulic cylinder 9 are respectively connected with the inner side walls of the right rotating groove and the right mounting groove, a right cavity is arranged inside the right air box 6, the left side wall of the right air box 6 is communicated with a, the front end and the rear end of a door-shaped rod 4 are both connected with the machine body 1, a sliding block 5 is provided with a sliding hole, the door-shaped rod 4 penetrates through the sliding hole, a middle hydraulic cylinder 16 is arranged at the right end of the sliding block 5, a cavity is arranged inside the placing box 10, the top of the placing box 10 is communicated with an opening, the outer side wall of the placing box 10 is communicated with a plurality of groups of inlets and outlets, four groups of steel wire ropes 31 are arranged on the top side wall of the placing box 10, and the other ends of the four; under the mutual cooperation of the two groups of right connecting blocks and the two groups of right rotating rods, the right bellows can rotate, the right hydraulic cylinder inclines, under the mutual cooperation of the first right fixing block, the second right fixing block and the right hydraulic cylinder, the angle of the right bellows is changed by controlling the length of the output end of the right hydraulic cylinder, the angle of the left bellows is changed by similarly controlling the length of the output end of the left hydraulic cylinder, the sliding block can move along the door-shaped rod, the height of the placing box is controlled by controlling the length of the output end of the middle hydraulic cylinder, during operation, firstly, cleaning liquid is added into the machine body, the placing box moves to a proper position, then, an article to be cleaned is placed in the placing box, the hydraulic cylinder controls the placing box to descend to the inside of the cleaning liquid during operation, the cleaning liquid enters the placing box along a plurality of inlets and outlets to contact with the article to be, the pneumatic cylinder makes places case and article and rises to suitable height in the operation, then left pneumatic cylinder and right pneumatic cylinder make left bellows and right bellows to fuselage central zone slope, open the fan, wind blows off along multiunit left air outlet and multiunit right air outlet, will place case and article surface cleaning liquid and blow clean, then shift out place case and article can, simple structure is convenient for fish out article, the washing liquid breaks away from article with higher speed, improves work efficiency.

The utility model discloses an ultrasonic cleaner, still include two sets of threaded rods 17, two sets of bases 18, two sets of nuts 19 and two sets of turntables 20, the lateral wall all is provided with the go-between 21 before fuselage 1 and the lateral wall of back, two sets of threaded rods 17 are the spiral shell dress respectively and pass two sets of go-between 21, two ends of two sets of threaded rods 17 are connected with a set of turntables 20 and a set of bases 18 respectively, two sets of nuts 19 are the spiral shell dress respectively to two sets of threaded rods 17; the length of the threaded rod penetrating through the connecting ring is changed by holding the turntable, the two groups of bases are in close contact with the ground after the cleaning machine body moves to the designated position, and the two groups of nuts are screwed, so that the fixing effect of the cleaning machine body is improved.

In the ultrasonic cleaning machine of the utility model, the air outlet pipe 15 is a hose; the air outlet pipe is a hose and does not block the rotation of the left air box and the right air box.

In the ultrasonic cleaning machine of the utility model, the input end of the fan 14 is communicated with a filter box 24; the filter box filters the air, and then the air is blown to placing case and article by the fan drive again, improves the cleaning performance, and the filter box needs regularly to clear up.

The ultrasonic cleaning machine of the utility model also comprises a reinforcing plate 25, and the top end and the bottom end of the reinforcing plate 25 are respectively connected with the platform 13 and the machine body 1; the reinforcing plate, the platform and the machine body form a triangular structure, so that the use reliability is improved.

In the ultrasonic cleaning machine of the utility model, the top of the sliding block 5 is provided with a U-shaped handle; the U-shaped handle is grasped to move the sliding block, so that the sliding block is more convenient to stress, and the use convenience is improved.

The ultrasonic cleaning machine of the utility model also comprises a plurality of groups of balls 26, the inner side wall of the sliding hole is provided with two groups of ring grooves, most areas of the plurality of groups of balls 26 are all positioned inside the two groups of ring grooves, and the plurality of groups of balls 26 are all contacted with the door-shaped rod 4; when the slider takes place to remove, the multiunit ball all takes place to rotate, frictional force when reducing the slider and removing.

The utility model discloses an ultrasonic cleaner, the bottom of the machine body 1 is provided with a liquid discharge pipe 27 in a communicating way, the liquid discharge pipe 27 is provided with a first valve 28 and a second valve 29, and the liquid discharge pipe 27 is provided with a viewing mirror 30; the first valve is located the upper reaches of second valve, and the sight glass is located first valve low reaches, and during normal work, opens first valve, closes the second valve, and inside the piece was along entering into the fluid-discharge tube, when observing that the inside has the piece of sight glass, at first closed first valve, then opened the second valve, made partial washing liquid and piece along the fluid-discharge tube discharge, cleared up the inside piece of fuselage, opened first valve and second valve simultaneously and can carry out the flowing back fast.

The utility model discloses an ultrasonic cleaner, the tuber pipe is the hose, do not hinder left bellows and right bellows rotation, under the mutually supporting of two sets of right connecting blocks and two sets of right rotating rods, right bellows is rotatable, right pneumatic cylinder inclines, under the mutually supporting of first right fixed block, second right fixed block and right pneumatic cylinder, the angle of right bellows changes through the length of control right pneumatic cylinder output, the angle of left bellows changes through the length of control left pneumatic cylinder output of the same reason, U type handle makes the slider remove, the slider is more convenient for the atress, the slider can move along door type pole, when the slider removes, multiunit ball all rotates, reduce the frictional force when the slider removes, control the height of placing the case through the length of pneumatic cylinder output in the control, in operation, at first add the washing liquid with the fuselage inside, place the case and remove to suitable position, then placing the articles to be cleaned in the placing box, controlling the placing box to descend to the inside of cleaning liquid by the hydraulic cylinder during operation, enabling the cleaning liquid to enter the placing box along the plurality of groups of inlets and outlets to contact the articles to be cleaned, controlling the ultrasonic generator to emit ultrasonic waves by the control box, after cleaning is finished, enabling the placing box and the articles to ascend to proper heights by the hydraulic cylinder during operation, then operating the left hydraulic cylinder and the right hydraulic cylinder to enable the left air box and the right air box to incline towards the central area of the machine body, starting the fan, blowing air along the plurality of groups of left air outlets and the plurality of groups of right air outlets, blowing the cleaning liquid on the surfaces of the placing box and the articles completely, filtering the air by the filtering box, then blowing the air to the placing box and the articles by the fan, improving the cleaning effect, periodically cleaning the filtering box, then moving the placing box and the article connecting rings out by the four groups of universal wheels, after the cleaning machine body moves to the assigned position, make two sets of bases all with ground in close contact with, and screw two sets of nuts, first valve is located the upper reaches of second valve, the sight glass is located first valve low reaches, in the time of normal work, open first valve, close the second valve, the piece is inside along entering into the fluid-discharge tube, when observing the inside piece that has of sight glass, at first close first valve, then open the second valve, make partial washing liquid and piece discharge along the fluid-discharge tube, clear up the inside piece of fuselage, it can carry out the flowing back fast to open first valve and second valve simultaneously.

The utility model discloses an ultrasonic cleaner, above the mounting means of all parts, connected mode or the mode that sets up are the welding, riveting or other common mechanical mode, wherein slidable/rotate fixedly promptly for slide/not dropping under the rotation state, sealed intercommunication is sealed when two connecting pieces communicate promptly, and the concrete structure of its all parts, model and coefficient index are its from the area technique, as long as can reach all implementation of its beneficial effect, above-mentioned all with electric module and with electric appliance be the common electrical part in market, buy when returning to the use only need connect according to the mutual electricity of the instruction manual that together buy back and can use, and control module is its common from taking the module, the event is no longer repeated here.

In the ultrasonic cleaning machine of the present invention, unless otherwise stated, the terms "up, down, left, right, front, back, inner, front, rear, inner, and vertical, horizontal" and the like are included in the terms and are intended to represent only the orientation of the term in the normal use state, or be a trivial term understood by those skilled in the art, and should not be considered as limiting the term, at the same time, the numerical terms "first," "second," and "third," etc. do not denote any particular quantity or order, but rather are used to distinguish one from another, furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. An ultrasonic cleaning machine comprises a cleaning machine body, wherein the cleaning machine body comprises a machine body (1), a control box (2) is arranged on the rear side of the machine body (1), a cleaning cavity is arranged in the machine body (1), a cleaning opening is formed in the top side wall of the machine body (1) in a communicating manner, an ultrasonic generator (3) is arranged on the side wall of the machine body (1), and universal wheels are arranged on the left front side, the right front side, the left rear side and the right rear side of the bottom side wall of the machine body (1); it is characterized by also comprising a door-shaped rod (4), a sliding block (5), a left air box, a first left fixed block, a second left fixed block, a left hydraulic cylinder, a right air box (6), a first right fixed block (7), a second right fixed block (8), a right hydraulic cylinder (9) and a placing box (10), wherein the left end of the top wall of the machine body (1) is provided with two groups of left connecting blocks, the top walls of the two groups of left connecting blocks are respectively provided with two groups of left rotating grooves which are communicated in the left-right direction, the bottom of the left air box is provided with two groups of left rotating rods, the bottom of the two groups of left rotating rods are respectively connected with the two groups of left rotating groove shafts, the first left fixed block is connected with the left side wall of the machine body (1), the second left fixed block is connected with the left air box, the left side walls of the first left fixed block and the second left fixed block are respectively provided with a left mounting groove and a, a left cavity is arranged inside the left air box, a plurality of groups of left air outlets are communicated with the right side wall of the left air box, two groups of right connecting blocks (11) are arranged at the right end of the top side wall of the machine body (1), two groups of right rotating grooves communicated in the right and left directions are respectively arranged on the top side wall of the two groups of right connecting blocks (11), two groups of right rotating rods (12) are arranged at the bottom of the right air box (6), the bottoms of the two groups of right rotating rods (12) are respectively connected with the two groups of right rotating grooves, a first right fixing block (7) is connected with the right side wall of the machine body (1), a second right fixing block (8) is connected with the right air box (6), a right mounting groove and a right rotating groove communicated in the top and bottom directions are respectively arranged on the right side walls of the first right fixing block (7) and the second right fixing block (8), the top end and the bottom end of the right, a plurality of groups of right air outlets are communicated with the left side wall of the right air box (6), a platform (13) is arranged on the front side of the machine body (1), a fan (14) is arranged on the platform (13), an air outlet pipe (15) is arranged at the output end of the fan (14), two output ends of the air outlet pipe (15) are respectively communicated with the front side walls of the left air box and the right air box (6), the front end and the rear end of the door-shaped rod (4) are both connected with the machine body (1), the sliding block (5) is provided with a sliding hole, the door-shaped rod (4) passes through the sliding hole, the right end of the sliding block (5) is provided with a middle hydraulic cylinder (16), the inner part of the placing box (10) is provided with a cavity, the top of the placing box (10) is communicated with an opening, the outer side wall of the placing box (10) is communicated with a plurality of groups of inlet and outlet, the top side wall of the placing box (10) is provided with four groups of steel wire ropes (31), and the other ends of the four groups of steel wire ropes (31) are connected with the output end of the middle hydraulic cylinder (16).

2. The ultrasonic cleaning machine according to claim 1, further comprising two sets of threaded rods (17), two sets of bases (18), two sets of nuts (19), and two sets of turntables (20), wherein the front and rear side walls of the machine body (1) are provided with connecting rings (21), the two sets of threaded rods (17) are respectively screwed through the two sets of connecting rings (21), both ends of the two sets of threaded rods (17) are respectively connected with the one set of turntables (20) and the one set of bases (18), and the two sets of nuts (19) are respectively screwed onto the two sets of threaded rods (17).

3. An ultrasonic cleaning machine according to claim 2, characterized in that the outlet duct (15) is a hose.

4. An ultrasonic cleaning machine according to claim 3, characterized in that the input end of the fan (14) is connected with a filter box (24).

5. An ultrasonic cleaning machine according to claim 4, further comprising a reinforcing plate (25), the reinforcing plate (25) being connected at its top end and bottom end to the platform (13) and the machine body (1), respectively.

6. An ultrasonic cleaning machine according to claim 5, characterized in that the top of the slide (5) is provided with a U-shaped handle.

7. An ultrasonic cleaning machine according to claim 6, further comprising a plurality of sets of balls (26), wherein two sets of annular grooves are provided in the inner side wall of the sliding hole, a majority of the plurality of sets of balls (26) are located inside the two sets of annular grooves, and the plurality of sets of balls (26) are in contact with the door rod (4).

8. The ultrasonic cleaning machine according to claim 7, wherein a drain pipe (27) is connected to the bottom of the machine body (1), the drain pipe (27) is provided with a first valve (28) and a second valve (29), and the drain pipe (27) is provided with a sight glass (30).