An ultrasonic cleaning apparatus

Abstract

The application relates to the technical field of ultrasonic cleaning, and discloses an ultrasonic cleaning device which comprises a cleaning pool, a placing box, an ultrasonic generator and a moving structure, a placing groove is formed in the placing box, a plurality of through holes are formed in the placing box, the moving structure can move the placing box, a limiting structure is arranged on the placing box, a fixing rod is arranged in the cleaning pool, a placing hole is formed in the placing box, the hole wall of the placing hole is in threaded connection with the fixing rod, and a rotating assembly is arranged on the moving structure. The placing box can be in threaded connection with the fixing rod, the placing box can rotate on the fixing rod when the moving structure drives the placing box to move along the length direction of the fixing rod, the oil stains or iron scraps on the bolt can be separated from the bolt under the action of centrifugal force, meanwhile, the bolt can receive ultrasonic vibration of the ultrasonic generator, and the bolt can be thoroughly cleaned.

Description

Technical Field

[0001] This application relates to the technical field of ultrasonic cleaning, and in particular to an ultrasonic cleaning device. Background Technology

[0002] A bolt is a connecting component, typically consisting of a threaded shank and a threaded head. The threaded shank has threads, and the threaded head is used to tighten the threaded shank. Bolts need to be used with nuts to fasten two components with through holes. During the production process, bolts need to be continuously lubricated and cleaned of debris. Newly produced bolts are covered with oil and iron filings, and need to be cleaned using cleaning equipment.

[0003] The dust-free cleaning equipment in the relevant technology includes a cleaning tank, a placement box, an ultrasonic generator, and a moving structure. The cleaning tank contains cleaning fluid, the placement box has a placement slot with a large number of bolts, and the placement box has multiple perforations that connect to the placement slot, allowing oil, iron filings, or cleaning fluid to pass through. The ultrasonic generator is located in the cleaning tank and can perform ultrasonic cleaning on the placement box. The moving structure can remove the placement box from the cleaning tank.

[0004] Since a large number of bolts are placed inside the placement box, although the bolts inside the placement box can feel the ultrasonic vibration, the oil stains are difficult to be discharged from the perforations. When the placement box is taken out of the cleaning tank, there may be oil stains on the bolts inside the placement box. The dust-free cleaning equipment does not clean the bolts thoroughly enough, so that oil stains and iron filings are still stuck on the bolts, which will cause deviations when measuring the bolt dimensions. Summary of the Invention

[0005] To address the issue of incomplete bolt cleaning, this application provides an ultrasonic cleaning device.

[0006] This application provides an ultrasonic cleaning device, which adopts the following technical solution:

[0007] An ultrasonic cleaning device includes a cleaning tank, a placement box, an ultrasonic generator, and a moving structure. The placement box has a placement groove and multiple through holes. The moving structure can move the placement box. The placement box has a limiting structure that can block the opening of the placement groove. The cleaning tank has a fixing rod. The placement box has a placement hole, the wall of which is threaded to the fixing rod. The moving structure has a rotating component that can be rotatably connected to the placement box.

[0008] By adopting the above technical solution, the opening of the placement slot is sealed by a limiting structure, preventing the bolts inside the placement box from detaching from the slot. Furthermore, the placement hole wall is threadedly connected to the fixing rod, allowing the placement box to be threadedly connected to the fixing rod. When the moving structure drives the placement box to move along the length of the fixing rod, a rotating component achieves a rotational connection with the placement box. This allows the moving structure to rotate the placement box while simultaneously moving along the length of the fixing rod, enabling the placement box to rotate on the fixing rod. Because the placement box has multiple through holes, oil or iron filings on the bolts can be detached from the bolts under centrifugal force. Simultaneously, the bolts receive ultrasonic vibrations from the ultrasonic generator, allowing the cleaning fluid to wash away the oil, ensuring the bolts are thoroughly cleaned and thus enabling more accurate bolt measurements.

[0009] Optionally, the opening of the placement slot is the side of the placement box, and the end face of the placement box is provided with a receiving slot communicating with the placement slot. The limiting structure includes a limiting cover and a limiting component. The limiting cover can slide in the receiving slot, and the limiting component can restrict the movement of the limiting cover. When the limiting cover is located in the receiving slot, the limiting cover blocks the placement slot.

[0010] By adopting the above technical solution, the limiting cover is located inside the receiving groove, allowing the limiting cover to block the opening of the placement groove. In addition, the limiting component restricts the limiting cover, enabling the limiting cover to stably block the placement groove and reduce the possibility of the limiting cover detaching from the receiving groove. This makes it difficult for the bolts in the placement groove to detach from the opening of the placement groove, thus allowing the limiting cover to limit the bolts in the placement groove.

[0011] Optionally, the limiting component includes an elastic element and an anti-detachment block. The elastic element is disposed on the placement box, and the anti-detachment block is disposed on the elastic element. The limiting cover has an anti-detachment groove for the elastic element to be inserted. When the anti-detachment block is inserted into the anti-detachment groove, the limiting cover completely blocks the opening of the placement groove.

[0012] By adopting the above technical solution, the elastic element drives the anti-detachment block, enabling the elastic element to drive the anti-detachment block to insert into the anti-detachment groove. This allows the anti-detachment block to restrict the limiting cover, ensuring that the limiting cover is stably located in the receiving groove. This reduces the possibility of the limiting cover moving within the receiving groove, and also ensures that the limiting cover stably seals the opening of the receiving groove when the box is rotating, reducing the possibility of the bolt coming off the opening of the receiving groove.

[0013] Optionally, the anti-detachment block is provided with an operating plate, which can drive the anti-detachment block to move within the anti-detachment groove.

[0014] By adopting the above technical solution, the operation panel is set on the anti-detachment block, so that the operator can drive the operation panel to move and drive the anti-detachment block to move, thereby realizing the anti-detachment block is separated from the anti-detachment groove, which makes it easy for the operator to unlock the limit cover, so that the limit cover can be stably located in the receiving groove, and realize the limitation of the limit cover on the bolts placed in the groove.

[0015] Optionally, the rotating assembly includes a rotating block, which is disposed on the movable structure. The placement box has an annular groove, and the rotating block is rotatably connected to the annular groove.

[0016] By adopting the above technical solution, the rotating block slides in the annular groove and is set on the moving structure. When the moving structure drives the placement box to rotate on the fixed rod, the rotating block can rotate around the placement box, realizing the rotational connection between the rotating block and the placement box. This allows the moving structure to stably drive the placement box to rotate along the length direction of the fixed rod.

[0017] Optionally, a stop strip is slidably connected to the limiting cover, and a rotating hole is provided on the stop strip for the rotating block to pass through. A through hole is provided on the limiting cover to connect to the annular groove, and the through hole is for the stop strip to pass through. When the rotating hole and the through hole are misaligned, the rotating block cannot be inserted into the annular groove.

[0018] By adopting the above technical solution, the stop strip slides on the limiting cover, allowing the rotating hole and the through hole to be aligned. Since the through hole connects to the annular groove, the rotating block can pass through the rotating hole and the through hole in sequence to reach the annular groove, allowing the stop block to rotate stably within the annular groove. This facilitates the disassembly of the rotating block from the placement box, making it easier to clean the placement box and insert the bolts inside. By sliding the stop strip on the limiting cover, the rotating hole and the through hole are staggered, allowing the stop strip to restrict the rotating block, reducing the possibility of the rotating block detaching from the placement box, and allowing the rotating block to rotate stably within the annular groove.

[0019] Optionally, the limiting cover has a limiting hole, the placement box has a slot, the limiting hole has a limiting rod, the limiting rod is located on the moving path of the stop strip, the stop strip can drive the limiting rod to insert into the slot, and when the limiting rod is inserted into the slot, the rotating hole and the through hole are misaligned.

[0020] By adopting the above technical solution, the limiting rod slides in the limiting hole, and the limiting rod is located on the moving path of the stop strip, so that the stop strip can drive the limiting rod to insert into the slot. At this time, the rotating hole and the through hole are misaligned, thereby realizing the limitation of the limiting rod on the limiting cover. When the rotating block is inserted into the annular groove, the limiting cover can more stably limit the opening of the placement slot, making it difficult for the bolts in the placement slot to come out of the placement box.

[0021] Optionally, a fixing plate is threaded onto the fixing rod, and a fixing strip is slidably connected to the fixing plate. The stop strip passes through the placement box, and a fixing hole is provided on the stop strip for the fixing strip to pass through. When the fixing strip passes through the fixing hole, the through hole and the rotating hole are misaligned.

[0022] By adopting the above technical solution, the fixing plate and the fixing rod are threadedly connected, allowing the fixing plate to rotate around the fixing rod. A fixing strip is slidably connected to the fixing plate, and a fixing hole is opened on the stop strip for the fixing strip to pass through. When the fixing plate and the placement box rotate around the fixing rod, the fixing strip is subjected to centrifugal force and moves away from the fixing rod, allowing the fixing strip to pass through the fixing hole. This allows the fixing strip to restrict the stop strip and fix the stop strip on the limit cover. At the same time, the through hole and the rotating hole are misaligned, preventing the rotating block from disengaging from the annular groove through the through hole, reducing the possibility of the rotating block disengaging from the placement box.

[0023] Optionally, the fixing plate is provided with a sliding groove, the fixing strip is slidably connected in the sliding groove, the bottom wall of the sliding groove has an inclined surface, and the inclined surface is inclined in the direction away from the opening of the cleaning pool towards the fixing rod.

[0024] By adopting the above technical solution, when the fixing plate does not rotate around the fixing rod, the fixing strip is not subjected to centrifugal force. Since the bottom wall of the chute has an inclined surface, the stop strip can slide along the inclined direction of the inclined surface, allowing the fixing strip to disengage from the fixing hole. This prevents the fixing strip from restricting the stop strip, allowing the placement box to separate from the fixing plate. The moving structure can drive the placement box to detach from the fixing plate, eliminating the need for workers to manually move the fixing strip. The fixing strip can slide automatically, reducing the number of operation steps for workers and improving the cleaning speed of the cleaning equipment.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. By sealing the opening of the placement slot through a limiting structure, the bolts inside the placement box cannot be dislodged from the opening of the placement slot. In addition, the wall of the placement hole is threadedly connected to the fixing rod, allowing the placement box to rotate around the fixing rod. Since the rotating component is rotatably connected to the placement box, the moving structure can drive the placement box to move, thereby allowing oil or iron filings on the bolts to be dislodged from the bolts through the holes under the action of centrifugal force, so that the bolts can be cleaned and the bolts can be measured more accurately.

[0027] 2. By sliding the stop strip on the limit cover, the stop strip can align the rotating hole and the through hole. Since the through hole connects to the annular groove, the stop block can pass through the rotating hole and the through hole in sequence to reach the annular groove, allowing the stop block to rotate stably in the annular groove. This allows the rotating block and the placement box to be disassembled, facilitating the separation of the placement box from the moving structure and allowing the placement box to be cleaned. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0029] Figure 2 This is a partial cross-sectional view highlighting the fixing tube in an embodiment of this application;

[0030] Figure 3 This is a partial cross-sectional view highlighting the limiting component in the embodiments of this application;

[0031] Figure 4 This is a cross-sectional view highlighting the stop strip in the embodiments of this application;

[0032] Figure 5 This is an exploded view showing the fixing strip in an embodiment of this application.

[0033] Reference numerals: 1. Cleaning tank; 11. Ultrasonic generator; 12. Fixing rod; 13. Fixing plate; 131. Threaded hole; 132. Slide groove; 133. Moving groove; 134. Embedded groove; 135. Inclined surface; 14. Fixing strip; 141. Moving block; 2. Placement box; 21. Placement groove; 22. Fixing tube; 221. Placement hole; 23. Annular groove; 231. Rotating groove; 24. Receiving groove; 241. Pop-out groove; 242. Reinforcing groove; 243. Receiving groove; 25. First receiving hole; 251. First receiving hole; 252. Elastic block; 3. Moving... 31. Moving structure; 32. Cylinder; 32. Rotating block; 321. Rotating plate; 4. Limiting structure; 41. Limiting cover; 411. Anti-detachment groove; 412. Sliding hole; 413. Stop groove; 414. Through hole; 415. Second receiving hole; 416. Receiving block; 42. Limiting assembly; 421. Elastic element; 422. Anti-detachment block; 423. Operating plate; 424. Reinforcing rod; 43. Stop strip; 431. Stop block; 432. Rotating hole; 433. Third receiving hole; 434. Fixing hole; 44. Limiting hole; 441. Limiting rod; 442. Slot. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0035] This embodiment discloses an ultrasonic cleaning device. (Refer to...) Figure 1An ultrasonic cleaning device includes a cleaning tank 1, a placement box 2, an ultrasonic generator 11, and a moving structure 3. The cleaning tank 1 contains cleaning fluid that can clean oil stains from bolts. The ultrasonic generator 11 is electrically connected to the cleaning tank 1 and can generate ultrasonic vibrations inside the cleaning tank 1, causing the bolts to detach oil stains and metal filings due to the vibration. The placement box 2 is used to store bolts and has multiple perforations for oil stains, metal filings, or cleaning fluid to pass through. The moving structure 3 allows the placement box 2 to be moved.

[0036] Reference Figure 2 The placement box 2 has a placement groove 21 on its side for placing bolts. A fixing rod 12 is fixedly connected to the bottom wall of the cleaning tank 1, and the outer circumference of the fixing rod 12 has internal threads. A fixing tube 22 is integrally formed on the side wall of the placement groove 21, extending in a direction perpendicular to the opening of the placement groove 21. A placement hole 221 is formed on the fixing tube 22, extending through to the opposite sides of the placement box 2, and the fixing rod 12 passes through the placement hole 221. The hole wall of the placement hole 221 has external threads, which match the internal threads of the fixing rod 12, allowing the placement box 2 to rotate around the fixing rod 12. When the placement box 2 rotates around the fixing rod 12, the bolts in the placement groove 21 can swing, allowing oil and iron filings on the bolts to detach from the bolts.

[0037] Reference Figure 1 and Figure 2 The moving structure 3 includes a cylinder 31 and a rotating assembly, which is rotatably connected to the placement box 2. The cylinder 31 can drive the rotating assembly to move up and down. The rotating assembly includes a rotating block 32, which is fixedly connected to the end face of the drive shaft of the cylinder 31. A rotating plate 321 is integrally formed on the end face of the rotating block 32 away from the drive shaft of the cylinder 31, and the cross-sectional area of ​​the rotating plate 321 is larger than that of the rotating block 32.

[0038] Reference Figure 2 An annular groove 23 is formed on the end face of the placement box 2, surrounding the placement hole 221 and allowing the rotating block 32 to move. A rotating slot 231 is formed on the bottom wall of the annular groove 23 for the rotating plate 321 to insert into. When the rotating plate 321 is located within the rotating slot 231, the rotating block 32 cannot disengage from the opening of the annular groove 23. When the cylinder 31 drives the rotating block 32 to move up and down, the placement box 2 rotates around the fixed rod 12. The rotating block 32 can rotate within the annular groove 23, enabling the cylinder 31 to stably drive the placement box 2 to move.

[0039] Reference Figure 2The placement box 2 is provided with a limiting structure 4, which can completely block the opening of the placement slot 21. The limiting structure 4 includes a limiting cover 41 and a limiting component 42. The limiting cover 41 can completely block the opening of the placement slot 21, and the limiting component 42 can restrict the movement of the limiting cover 41.

[0040] Reference Figure 2 and Figure 3 The placement box 2 has a receiving groove 24 on its end face with a placement hole 221, which connects to the placement groove 21. The receiving groove 24 is for the insertion of the limiting cover 41 and extends to the side of the placement box 2. Receiving grooves 243 are provided on the opposite sides of the receiving groove 24, extending along its length to the end face of the placement box 2. Receiving blocks 416 are integrally formed on the opposite sides of the limiting cover 41, and these blocks 416 can slide within the receiving grooves 243.

[0041] Reference Figure 3 The limiting component 42 includes an elastic element 421 and an anti-detachment block 422. The elastic element 421 includes a pop-out spring. A pop-out groove 241 is formed on the groove wall of the receiving groove 24, and the pop-out groove 241 extends to the end face of the placement box 2 where the placement hole 221 is formed. One end of the pop-out spring is fixedly connected to the bottom wall of the pop-out groove 241, and the other end of the pop-out spring is fixedly connected to the anti-detachment block 422. An anti-detachment groove 411 for inserting the anti-detachment block 422 is formed on the end face of the limiting cover 41. When the anti-detachment block 422 is inserted into the anti-detachment groove 411, the pop-out spring is in a compressed state.

[0042] Reference Figure 3 An operating plate 423 is fixedly connected to the end face of the anti-detachment block 422. The operating plate 423 protrudes from the pop-out groove 241, allowing the operator to drive the operating plate 423 to move the anti-detachment block 422. A reinforcing groove 242 is formed on the groove wall of the pop-out groove 241, extending along the length of the pop-out groove 241. A reinforcing rod 424 is fixedly connected to the end face of the anti-detachment block 422 facing the pop-out spring, and the reinforcing rod 424 can move within the reinforcing groove 242. When the anti-detachment block 422 is inserted into the anti-detachment groove 411, the reinforcing rod 424 remains within the reinforcing groove 242.

[0043] Reference Figure 4 A sliding hole 412 is provided on the end face of the limiting cover 41, extending through to the side of the limiting cover 41. A stop groove 413 is provided on the opposite sides of the sliding hole 412, extending along the length of the sliding groove. A stop strip 43 is provided on the limiting cover 41, which can slide within the sliding hole 412. A stop block 431 is fixedly connected to the opposite sides of the stop strip 43, and the stop block 431 can be inserted into the stop groove 413.

[0044] Reference Figure 2 A first receiving hole 25, which connects to the annular groove 23, is provided on the end face of the placement box 2, through which the rotating block 32 passes. First receiving holes 251 are provided on the opposite sides of the first receiving hole 25, through which the rotating plate 321 passes. An elastic block 252 is fixedly connected to the bottom wall of the first receiving hole 25, and the elastic block 252 has elastic deformation capability. When the rotating block 32 is located within the annular groove 23, the elastic block 252 restricts the rotating block 32 from moving from the annular groove 23 into the first receiving hole 25.

[0045] Reference Figure 2 The end face of the limiting cover 41 has a through hole 414 for the rotating block 32 to pass through, and the walls on both sides of the through hole 414 have second receiving holes 415 for the rotating plate 321 to pass through. When the limiting cover 41 completely blocks the opening of the placement groove 21, the through hole 414 connects to the first receiving hole 25, and the second receiving hole 415 connects to the first receiving hole 251.

[0046] Reference Figure 2 and Figure 4 The end face of the stop strip 43 has a rotating hole 432 for the rotating block 32 to pass through. On the opposite sides of the rotating hole 432, there are third receiving holes 433 for the rotating block 32 to pass through. When the third receiving hole 433 is aligned with the second receiving hole 415, the rotating hole 432 can be aligned with the through hole 414. The rotating block 32 can then pass through the rotating hole 432, the through hole 414, and the first receiving hole 25 sequentially into the annular groove 23. At this time, the stop strip 43 protrudes towards the opening of the receiving groove 24. When the stop strip 43 is fully inserted into the receiving groove 24, the rotating hole 432 and the through hole 414 are misaligned, meaning the second receiving hole 415 and the third receiving hole 433 are not aligned, preventing the rotating block 32 from disengaging from the through hole 414.

[0047] Reference Figure 4 A limiting hole 44 is formed on the wall of the sliding hole 412, and a limiting rod 441 is slidably connected within the limiting hole 44. A slot 442 is formed on the wall of the receiving groove 24 for the limiting rod 441 to be inserted. When the limiting cover 41 is installed in the receiving groove 24, the limiting hole 44 is inclined toward the sliding hole 412 in a direction away from the opening of the receiving groove 24. When the stop strip 43 does not abut against the limiting rod 441, the limiting rod 441 disengages from the slot 442 along the wall of the limiting hole 44. When the lower end of the stop strip 43 passes through the sliding hole 412, the stop strip 43 can abut against the limiting rod 441, allowing the limiting rod 441 to be inserted into the slot 442.

[0048] Reference Figure 2 and Figure 5A fixing plate 13 is provided on the fixing rod 12, and a threaded hole 131 is formed on the end face of the fixing plate 13. The wall of the threaded hole 131 is threadedly connected to the fixing rod 12, that is, the fixing plate 13 can rotate along the length direction of the fixing rod 12. A sliding groove 132 is formed on the end face of the fixing plate 13, and the sliding groove 132 extends away from the threaded hole 131. Movable grooves 133 are formed on the groove walls on both sides of the sliding groove 132, and the movable grooves 133 extend along the length direction of the sliding groove 132.

[0049] Reference Figure 2 , Figure 4 and Figure 5 A fixing strip 14 is provided on the fixing plate 13, which can slide within the slide groove 132. Movable blocks 141 are fixedly connected to the opposite end faces of the fixing strip 14, and the movable blocks 141 can slide within the moving groove 133. A groove 134 communicating with the slide groove 132 is provided on the end face of the fixing plate 13, allowing the stop strip 43 to be inserted, and the groove 134 extends to the side of the fixing plate 13. A fixing hole 434 is provided on the end face of the stop strip 43 for the fixing strip 14 to pass through. When the lower end of the stop strip 43 passes through the sliding hole 412 and is inserted into the groove 134, the fixing hole 434 communicates with the slide groove 132, at which point the stop strip 43 prevents the rotating block 32 from disengaging from the through hole 414.

[0050] Reference Figure 1 , Figure 2 The bottom wall of the chute 132 has an inclined surface 135, which slopes away from the opening of the cleaning tank 1 and towards the threaded hole 131. When the placement box 2 is placed into the cleaning tank 1, the placement box 2 abuts against the fixing plate 13. At this time, due to gravity, the lower end of the stop strip 43 passes through the sliding hole 412 and inserts into the groove 134. When the moving structure 3 drives the placement box 2 to rotate, the fixing strip 14 moves under the action of centrifugal force, allowing one end of the fixing strip 14 to pass through the fixing hole 434.

[0051] The implementation principle of an ultrasonic cleaning device according to an embodiment of this application is as follows: When the moving structure 3 drives the placement box 2 to move on the fixed rod 12, the lower end of the stop strip 43 is inserted into the groove 134, and the placement box 2 rotates around the fixed rod 12. At this time, the fixed strip 14 is subjected to centrifugal force, and one end of the fixed strip 14 passes through the fixed hole 434 to lock the stop strip 43, so that the stop strip 43 keeps the limit rod 441 in place, and the limit rod 441 can fix the limit cover 41 and the placement box 2 to each other.

[0052] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this application should be included within the protection scope of this application.

Claims

1. An ultrasonic cleaning device, comprising a cleaning tank (1), a placing box (2), an ultrasonic generator (11) and a moving structure (3), a placing groove (21) is formed on the placing box (2), a plurality of through holes are formed on the placing box (2), and the moving structure (3) is capable of moving the placing box (2), characterized in that: The placing box (2) is provided with a limiting structure (4), the limiting structure (4) can block the opening of the placing groove (21), the cleaning pool (1) is provided with a fixed rod (12), the placing box (2) is provided with a placing hole (221), the hole wall of the placing hole (221) is screwed with the fixed rod (12), the moving structure (3) is provided with a rotating assembly, and the rotating assembly can be rotatably connected with the placing box (2); ​ The rotating assembly comprises a rotating block (32), the rotating block (32) is arranged on the moving structure (3), the placing box (2) is provided with an annular groove (23), and the rotating block (32) is rotatably connected in the annular groove (23); The opening of the placing groove (21) is the side of the placing box (2), the end surface of the placing box (2) is provided with a containing groove (24) communicating with the placing groove (21), the limiting structure (4) comprises a limiting cover (41) and a limiting assembly (42), the limiting cover (41) can slide in the containing groove (24), the limiting assembly (42) can limit the movement of the limiting cover (41), when the limiting cover (41) is located in the containing groove (24), the limiting cover (41) blocks the placing groove (21); The limiting cover (41) is slidably connected with a stop strip (43), the stop strip (43) is provided with a rotating hole (432) for the rotating block (32) to pass through, the limiting cover (41) is provided with a through hole (414) communicating with the annular groove (23), the through hole (414) is for the stop strip (43) to pass through, when the rotating hole (432) is staggered with the through hole (414), the rotating block (32) cannot be inserted into the annular groove (23); The limiting cover (41) is provided with a limiting hole (44), the placing box (2) is provided with an insertion slot (442), the limiting hole (44) is provided with a limiting rod (441), the limiting rod (441) is located on the movement path of the stop strip (43), and the stop strip (43) can drive the limiting rod (441) to be inserted into the insertion slot (442); when the limiting rod (441) is inserted into the insertion slot (442), the rotating hole (432) is staggered with the through hole (414).

2. The ultrasonic cleaning apparatus according to claim 1, wherein: The limiting assembly (42) comprises an elastic piece (421) and an anti-dropping block (422), the elastic piece (421) is arranged on the placing box (2), the anti-dropping block (422) is arranged on the elastic piece (421), the limiting cover (41) is provided with an anti-dropping groove (411) for the elastic piece (421) to be inserted into, when the anti-dropping block (422) is inserted into the anti-dropping groove (411), the limiting cover (41) completely blocks the opening of the placing groove (21).

3. An ultrasonic cleaning apparatus as claimed in claim 2, characterized in that: The anti-dropping block (422) is provided with an operation plate (423), and the operation plate (423) can drive the anti-dropping block (422) to move in the anti-dropping groove (411).

4. The ultrasonic cleaning apparatus of claim 1, wherein: The fixed rod (12) is screwed with a fixed plate (13), the fixed plate (13) is slidably connected with a fixed strip (14), the stop strip (43) passes through the placing box (2), the stop strip (43) is provided with a fixed hole (434) for the fixed strip (14) to pass through, when the fixed strip (14) passes through the fixed hole (434), the through hole (414) is staggered with the rotating hole (432).

5. An ultrasonic cleaning apparatus as claimed in claim 4, wherein: The fixed plate (13) is provided with a sliding groove (132), the fixed strip (14) is slidably connected in the sliding groove (132), the bottom wall of the sliding groove (132) is provided with an inclined surface (135), the inclined surface (135) is inclined away from the opening direction of the cleaning pool (1) in the direction of the fixed rod (12).

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