Cleaning machine and cleaning method

Abstract

The invention relates to a cleaning machine and a cleaning method.The cleaning machine comprises a box body and a bottom spraying assembly, a concave water return area is arranged at the bottom of the box body, the bottom spraying assembly is used for upwards drawing water in the water return area and spraying the water, and the cleaning machine further comprises a reinforced cleaning assembly capable of directly drawing water from the water return area and spraying the water towards a specific area; the enhanced washing assembly comprises a water suction pipe, a first end of which is communicated with the water return area; the water absorption piece comprises a piston assembly capable of generating intermittent suction force and thrust force, and the input end of the water absorption piece is communicated with the second end of the water absorption pipe; the first end of the injection pipe is communicated with the output end of the water absorption part, and the second end is an injection end. According to the enhanced washing assembly, the water suction pipe is directly communicated with the water return area without being affected by water supply of a bottom spraying assembly in the prior art, a user can freely adjust the washing flow and pressure by controlling the power of the enhanced washing assembly according to the number, the position and the dirt characteristics of the to-be-washed objects, and therefore the washing effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of dishwashers, and in particular to a washing machine for washing tableware, fruits and vegetables. Background Art

[0002] At present, dishwashers are widely used in home kitchens.

[0003] For dishwashers with a large cleaning chamber, the commonly used bottom spray arm has a limited spray range, which may result in a poor cleaning effect in some areas. At present, in order to solve this problem, different dishwasher manufacturers have different treatment methods, mainly the following methods:

[0004] (1) A shower-shaped auxiliary spray arm is provided in a specific area of ​​the bowl basket to increase the spray range and spray intensity of the corresponding area;

[0005] (2) Installing a small local spray arm in the dishwasher to focus on spraying specific areas of the basket;

[0006] (3) Add a spray hole structure on the side wall of the dishwasher to enhance the spraying.

[0007] For the above-mentioned different enhanced washing structures, there is a common point, that is, the auxiliary sprays all need to distribute the flow with the main spray arm, and the flow of the enhanced washing part is passively regulated through the overall flow control. The flushing intensity is difficult to adjust according to the number of objects to be cleaned, the characteristics of the dirt, etc. The washing mode is single and the enhanced washing effect is poor. Summary of the invention

[0008] The first technical problem to be solved by the present invention is to provide a cleaning machine which can provide local enhanced washing and realize independent control of the enhanced washing intensity so as to improve the cleaning effect in view of the current status of the prior art.

[0009] The second technical problem to be solved by the present invention is to provide a cleaning method for the above-mentioned cleaning machine in view of the current status of the prior art, which can freely adjust the flushing flow and pressure according to the number, position and dirt characteristics of the objects to be cleaned to improve the cleaning effect.

[0010] The technical solution adopted by the present invention to solve at least one of the above technical problems is:

[0011] A cleaning machine comprises a box body and a bottom spray assembly, wherein a concave water return area is arranged at the bottom of the box body, and the bottom spray assembly is arranged in the box body and close to the water return area, and is used to draw water in the water return area upward and spray it, and also comprises an enhanced washing assembly that can directly draw water from the water return area and spray it toward a specific area, and the enhanced washing assembly comprises:

[0012] A water suction pipe, a first end of which is connected to the water return area;

[0013] A water absorbing member, comprising a piston assembly capable of generating intermittent suction and thrust, wherein the input end of the water absorbing member is connected to the second end of the water absorbing pipe;

[0014] The spray pipe has a first end connected to the output end of the water absorbing member and a second end being a spray end.

[0015] The present invention provides an enhanced washing component, which can be directly installed at the bottom of the dishwasher, and directly connects the water suction pipe with the return water area, without being affected by the water supply of the bottom spray component in the prior art. The user can freely adjust the flushing flow and pressure by controlling the power of the enhanced washing component according to the number, position and dirt characteristics of the objects to be cleaned, thereby improving the cleaning effect.

[0016] As an improvement, the water suction pipe, the spray pipe, and the water suction member are all in two groups and correspond one to one. The two water suction members share a driving part, and the driving part is connected to a transmission structure that can make the piston assemblies of the two water suction members produce opposite suction and thrust, thereby forming a pulse spray mode through the two spray pipes. The two groups of spray pipes form a pulse spray on the enhanced washing area, which can not only improve the cleaning efficiency, but also improve the stripping force on pollutants, thereby improving the cleaning effect.

[0017] Preferably, the driving part includes an output shaft arranged upward, the output shaft is connected to a first gear, the first gear is provided with a first matching wheel that can rotate with it, the first matching wheel is connected to the piston assembly of the first group of water absorbent parts; the side of the first gear is provided with a second gear that meshes with it, the second gear is provided with a second matching wheel that can rotate with it, the second matching wheel is connected to the piston assembly of the second group of water absorbent parts, and the first gear and the second gear rotate in opposite directions. When two groups of injection tubes are used to form a pulse injection mode, a group of transmission structures can be used to realize the sharing of the driving part without affecting the working state of any group of injection tubes, so as to simplify the structure and save energy.

[0018] In the present invention, the water absorbing member includes a water absorbing sleeve arranged transversely, the injection pipe and the water absorbing pipe are arranged at intervals up and down, the second end of the water absorbing pipe and the second end of the injection pipe are arranged corresponding to the first end of the water absorbing sleeve respectively, the part of the water absorbing sleeve close to its first end forms a water drawing cavity connected with the water absorbing pipe and the injection pipe, the part of the water absorbing sleeve close to its second end forms a matching cavity, a piston is reciprocatingly arranged in the water absorbing sleeve, the end of the piston is connected to a piston rod extending into the matching cavity, and the driving part for driving the piston rod to reciprocate is exposed in the matching cavity. With the above structure, a water absorbing sleeve can be used to form a water drawing cavity and a piston sleeve, the structure is simple, and it is easy to realize intermittent automatic switching of water flow.

[0019] Preferably, a first one-way valve is provided at the second end of the water suction pipe to allow only water to flow through the water suction pipe into the water suction jacket, and a second guide valve is provided at the first end of the injection pipe to allow only water to flow through the water suction jacket into the injection pipe, and the valve actuation structures of the first one-way valve and the second one-way valve are opposite. The one-way valve is provided to ensure the one-way flow of water and prevent the backflow of water. The one-way valve structure is prior art and will not be described in detail here.

[0020] Preferably, the driving part is arranged under the water suction sleeve, the output shaft of the driving part is arranged in a direction, the bottom of the matching cavity is provided with a first gear connected to the output shaft and rotating with the output shaft, the outer wall of the first gear is provided with a gear ring, the upper surface of the first gear is provided with a concave accommodating cavity, the peripheral wall of the accommodating cavity forms an inner gear ring, the accommodating cavity is provided with a first matching wheel that matches the inner gear ring and rotates with the first gear, the upper surface of the first matching wheel is provided with an offset rocker arm, and correspondingly, the end of the piston rod is provided with a long hole that can match the rocker arm. With the above structure, the output shaft rotates to drive the first gear to rotate, the first gear drives the first matching wheel to rotate, and the first matching wheel drives the piston rod and the piston to reciprocate through the eccentric structure to achieve water absorption and drainage; when the first gear rotates forward, it drives the second gear to reverse at the same time, and further realizes the water absorption of the second group of injection pipes through the second matching wheel and the corresponding piston rod and piston, and makes the two groups of injection pipes form an intermittent pulse injection mode to improve energy utilization and cleaning effect.

[0021] As an improvement, the jet pipe is provided with a stabilizing structure that can stabilize the jet water flow. The stabilizing structure can be constrained in the jet pipe to move back and forth along the axial direction of the jet pipe and realize adaptive adjustment of the flow area through the impact force of the water flow. For the jet waterway using a piston water pump, it is easy to have unstable water flow jetting. In view of this situation, the present invention provides a stabilizing structure, and the stabilizing structure is adaptively adjusted according to the delivery size of the water flow to ensure that the jet pipe can always achieve stable jetting even though it is performing intermittent jetting.

[0022] Preferably, the flow stabilizing structure includes a flow stabilizing sleeve, the jet pipe is formed with a threaded pipe section near its first end, the flow stabilizing sleeve is arranged in the jet pipe and its first end has an external thread that cooperates with the threaded pipe section to restrict its axial movement, the side wall of the flow stabilizing sleeve is provided with a water outlet near the second end of the jet pipe, and the jet pipe is provided with a matching structure that can cooperate with the second end of the flow stabilizing sleeve to increase or reduce the flow area near its second end. The above structure is adopted to facilitate the control of the flow area through the impact force of the water flow, that is, the water flow rate and the output cross-sectional area are adaptive to each other, thereby ensuring the stable output of the water flow.

[0023] Preferably, the injection pipe forms a conical structure with a contraction near its second end, and correspondingly, the second end of the stabilizing sleeve forms a conical surface that can match the conical structure. When the stabilizing sleeve moves toward the second end of the injection pipe, the conical surface approaches the conical structure to reduce the flow area, and when the stabilizing sleeve moves toward the first end of the injection pipe, the conical surface moves away from the conical structure to increase the flow area. This structure facilitates the adjustment of the flow area with the axial movement of the stabilizing sleeve.

[0024] Preferably, a step surface is formed between the threaded pipe section of the injection pipe and its downstream portion, and an elastic pad that can abut against the step surface is sleeved on the outer periphery of the stabilizer sleeve, and the elastic pad controls the movement stroke of the stabilizer sleeve by providing compression during the reciprocating movement of the stabilizer sleeve. This structure can stabilize the axial movement of the stabilizer sleeve to further improve the flow stabilization effect.

[0025] Preferably, an impeller capable of providing a rotational driving force for the flow stabilizer sleeve under the impact of water flow is provided at the first end of the flow stabilizer sleeve. This structure is provided to facilitate the conversion of the impact force of the water flow into a circumferential rotation force, thereby driving the flow stabilizer sleeve to rotate and cooperate with the threaded pipe section to achieve axial movement.

[0026] A cleaning method for a cleaning machine, using the above-mentioned cleaning machine, when it is necessary to perform enhanced cleaning on a local area, the flow rate and water pressure required for enhanced cleaning are determined according to the placement position, quantity or nature of the pollutants of the objects to be cleaned, and the power of the driving part is controlled. The enhanced cleaning parameters are controlled by directly controlling the amount of water absorbed by the suction pipe from the return water area, thereby providing a jet water flow with a specific water flow rate and water pressure to a specific area.

[0027] Compared with the prior art, the advantages of the present invention are: the present invention provides an enhanced washing component, which can be directly installed at the bottom of the dishwasher, directly connecting the water suction pipe with the return water area, and is not affected by the water supply of the bottom spray component in the prior art. Users can freely adjust the flushing flow and pressure by controlling the power of the enhanced washing component according to the number, position and dirt characteristics of the objects to be cleaned, thereby improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a cleaning machine according to an embodiment of the present invention;

[0029] Figure 2 This is a diagram showing the coordination between the enhanced washing assembly and the bottom of the box in an embodiment of the present invention;

[0030] Figure 3 for Figure 2 A partial cross-sectional view of

[0031] Figure 4 This is a diagram showing the coordination between the driving part and the transmission structure in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below with reference to the accompanying drawings.

[0033] like Figures 1 to 4 As shown, the cleaning machine of this embodiment includes a box body 1 and a bottom spray assembly 2. A concave water return area 11 is provided at the bottom of the box body 1. The bottom spray assembly 2 is arranged in the box body 1 and close to the water return area 11, and is used to draw water in the water return area 11 upward and spray it.

[0034] The bottom spray assembly 2 in this embodiment is a combination of a water pump and a bottom spray arm, that is, the water pump is directly arranged in the water return area 11, and a filter plate 12 is arranged on the top of the water return area 11. The water inlet of the water pump is directly connected to the water return area 11 without being connected through a water pipe, and the water outlet of the water pump is directly connected to the water inlet of the bottom spray arm. The bottom spray arm is rotatably arranged on the filter plate 12 and located under the lower bowl basket for spraying upwards.

[0035] This embodiment also includes an enhanced washing component 3 that can directly draw water from the water return area 11 and spray it toward a specific area. The spray outlet of the enhanced washing component 3 can be adjusted as needed to correspond to the specific area of ​​the lower bowl basket.

[0036] The enhanced washing component 3 of this embodiment includes: a water suction pipe 31, a first end of which is connected to the return water area 11; a water suction member 32, including a piston assembly that can generate intermittent suction and thrust, and the input end of the water suction member 32 is connected to the second end of the water suction pipe 31; an injection pipe 33, a first end of which is connected to the output end of the water suction member 32, and the second end is the injection end.

[0037] The water absorption pipe 31, the spray pipe 32, and the water absorption member 33 are all in two groups and correspond to each other. The two water absorption members 33 share a driving part 34. The driving part 34 is connected with a transmission structure 35 that can make the piston assemblies of the two water absorption members 33 generate opposite suction and thrust, thereby forming a pulse spray mode through the two spray pipes 32. The pulse spraying of the enhanced washing area by the two groups of spray pipes 32 can not only improve the cleaning efficiency, but also improve the stripping force of pollutants, thereby improving the cleaning effect.

[0038] The driving part 34 comprises a motor 341, the output shaft 342 of the motor 341 is arranged upward, the output shaft 342 is connected to a first gear 351, the first gear 351 is provided with a first matching wheel 352 that can rotate with the first gear 351, the first matching wheel 352 is connected to the piston assembly of the first group of water absorbing parts 33; the side of the first gear 351 is provided with a second gear 353 that meshes with the first gear 351, the second gear 353 is provided with a second matching wheel 354 that can rotate with the second gear 354, the second matching wheel 354 is connected to the piston assembly of the second group of water absorbing parts 32, and the first gear 351 and the second gear 353 rotate in opposite directions. When two groups of spray pipes 32 are used to form a pulse spray mode, a group of transmission structures can be used to realize the common use of the driving part 34 without affecting the working state of any group of spray pipes, so as to simplify the structure and save energy consumption.

[0039] In this embodiment, the water absorbing member 33 includes a water absorbing sleeve 331 arranged transversely, the spray pipe 32 and the water absorbing pipe 31 are arranged in an interval up and down, and the first end of the water absorbing pipe 31 is bent downward and passes through the filter plate 12 and penetrates into the water return area 11. The spray end of the spray pipe 32 is bent upward to form a nozzle that can correspond to a specific cleaning area.

[0040] The second end of the water suction pipe 31 and the second end of the injection pipe 32 are arranged corresponding to the first end of the water suction sleeve 331 respectively. The part of the water suction sleeve 331 near its first end forms a water-drawing chamber 332 connected with the water suction pipe 31 and the injection pipe 32. The part of the water suction sleeve 331 near its second end forms a matching chamber 333. A piston 36 is reciprocally arranged in the water suction sleeve 331. The end of the piston 36 is connected to a piston rod 361 extending into the matching chamber. The driving part 34 for driving the piston rod 361 to reciprocate is exposed in the matching chamber 333. With the above structure, a water suction sleeve 331 can be used to form a water-drawing chamber 332 and a piston sleeve. The structure is simple and it is convenient to realize intermittent automatic switching of water flow.

[0041] A first one-way valve 10 is provided at the second end of the water suction pipe 31 to allow water to flow through the water suction pipe 31 and enter the water suction jacket 331. A second pilot valve 20 is provided at the first end of the injection pipe 32 to allow water to flow through the water suction jacket 331 and enter the injection pipe 32. The valve actuation structures of the first one-way valve 10 and the second one-way valve 20 are opposite. The one-way valve is provided to ensure the one-way flow of water and prevent the backflow of water. The one-way valve structure is prior art and will not be described in detail here.

[0042] The driving part 34 is arranged under the water absorption sleeve 331, and the output shaft 342 of the driving part 34 is arranged in a direction. The bottom of the matching cavity 333 is provided with a first gear 351 connected to the output shaft 342 and rotates with the output shaft 342, and the outer wall of the first gear 351 is provided with a gear ring, and the upper surface of the first gear 351 is provided with a concave accommodating cavity 350, and the surrounding wall of the accommodating cavity 350 forms an inner gear ring, and the accommodating cavity 350 is provided with a first matching wheel 352 that cooperates with the inner gear ring and rotates with the first gear 351, and the upper surface of the first matching wheel 352 is provided with an offset rocker arm 3521, and accordingly, the end of the piston rod 361 is provided with a long hole 362 that can cooperate with the rocker arm 3521. With the above structure, the output shaft rotates to drive the first gear to rotate, and the first gear drives the first matching wheel to rotate. The first matching wheel drives the piston rod and the piston to move back and forth through the eccentric structure to achieve water absorption and drainage. When the first gear rotates forward, it drives the second gear to reverse at the same time, and further realizes water absorption of the second group of injection pipes through the second matching wheel and the corresponding piston rod and piston, and makes the two groups of injection pipes form an intermittent pulse injection mode to improve energy utilization and cleaning effect.

[0043] The jet pipe 32 is provided with a flow stabilizing structure 4 that can stabilize the jet water flow. The flow stabilizing structure 4 can be constrained in the jet pipe 32 to move back and forth along the axial direction of the jet pipe 32 and realize adaptive adjustment of the flow area through the impact force of the water flow. For the jet waterway using a piston water pump, it is easy to have unstable water flow jetting. In view of this situation, the embodiment provides a flow stabilizing structure, and the flow stabilizing structure is adaptively adjusted according to the delivery size of the water flow, so as to ensure that the jet pipe can always achieve stable jetting even though it performs intermittent jetting.

[0044] The flow stabilizing structure 4 includes a flow stabilizing sleeve 41. The jet pipe 32 is formed with a threaded pipe section 321 near its first end. The flow stabilizing sleeve 41 is arranged in the jet pipe 32 and its first end has an external thread 411 that cooperates with the threaded pipe section 321 to restrict its axial movement. The side wall of the flow stabilizing sleeve 41 is provided with a water outlet 412 near the second end of the jet pipe 32. The jet pipe 32 is provided with a matching structure that can cooperate with the second end of the flow stabilizing sleeve 41 to increase or reduce the flow area near its second end. The above structure is adopted to facilitate the control of the flow area through the impact force of the water flow, that is, the water flow rate and the output cross-sectional area are adaptive to ensure the stable output of the water flow.

[0045] The injection pipe 32 forms a conical structure 322 with a contraction near its second end. Correspondingly, the second end of the stabilizing sleeve 41 forms a conical surface 413 that can match the conical structure 322. When the stabilizing sleeve 41 moves toward the second end of the injection pipe 32, the conical surface 413 approaches the conical structure 322 to reduce the flow area. When the stabilizing sleeve 41 moves toward the first end of the injection pipe 32, the conical surface 413 moves away from the conical structure 322 to increase the flow area. This structure facilitates the adjustment of the flow area with the axial movement of the stabilizing sleeve 41.

[0046] A step surface 323 is formed between the threaded pipe section 321 of the injection pipe 32 and its downstream portion, and an elastic pad 42 that can abut against the step surface 323 is sleeved on the outer periphery of the stabilizing sleeve 41. The elastic pad 42 controls the movement stroke of the stabilizing sleeve by providing compression during the reciprocating movement of the stabilizing sleeve 41. This structure can stabilize the axial movement of the stabilizing sleeve to further improve the flow stabilization effect.

[0047] The first end of the flow stabilizer 41 is provided with an impeller 43 which can provide a rotational driving force for the flow stabilizer under the impact of water flow. This structure is convenient for converting the impact force of the water flow into a circumferential rotation force, thereby driving the flow stabilizer to rotate and cooperate with the threaded pipe section to achieve axial movement.

[0048] The cleaning method of the cleaning machine of this embodiment adopts the above-mentioned cleaning machine. When enhanced cleaning is required for a local area, the flow rate and water pressure required for enhanced cleaning are determined according to the placement position, quantity or nature of the pollutants of the objects to be cleaned, and the power of the driving part 34 is controlled. The enhanced cleaning parameters are controlled by directly controlling the amount of water absorbed by the suction pipe from the return water area 11, thereby providing a jet water flow with a specific water flow rate and water pressure to a specific area.

[0049] The present embodiment provides an enhanced washing component 3, which can be directly installed at the bottom of the dishwasher, and the water suction pipe is directly connected to the return water area 11, without being affected by the water supply of the bottom spray component 2 in the prior art. The user can freely adjust the flushing flow and pressure by controlling the power of the enhanced washing component 3 according to the number, location and dirt characteristics of the objects to be cleaned, thereby improving the cleaning effect.

[0050] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A cleaning machine, comprising a box body and a bottom spray assembly, wherein a concave water return area is provided at the bottom of the box body, and the bottom spray assembly is arranged in the box body and close to the water return area, and is used to draw water in the water return area upward and spray it, characterized in that: The enhanced washing component can also be used to draw water directly from the water return area and spray it toward a specific area. The enhanced washing component includes A water suction pipe, a first end of which is connected to the water return area; A water absorbing member, comprising a piston assembly capable of generating intermittent suction and thrust, wherein the input end of the water absorbing member is connected to the second end of the water absorbing pipe; The spray pipe has a first end connected to the output end of the water absorbing member and a second end being a spray end.

2. The cleaning machine according to claim 1, characterized in that: The water absorption pipe, the injection pipe and the water absorption part are all in two groups and correspond one to one. The two water absorption parts share a driving part, and the driving part is connected to a transmission structure that can make the piston assemblies of the two water absorption parts generate opposite suction and thrust, thereby forming a pulse injection mode through the two injection pipes.

3. The cleaning machine according to claim 2, characterized in that: The driving part includes an upwardly arranged output shaft, the output shaft is connected to a first gear, the first gear is provided with a first matching wheel that can rotate with the first gear, and the first matching wheel is connected to the piston assembly of the first group of water-absorbing parts; a second gear is provided on the side of the first gear and meshes with the first gear for transmission, the second gear is provided with a second matching wheel that can rotate with the second gear, and the second matching wheel is connected to the piston assembly of the second group of water-absorbing parts, and the first gear and the second gear rotate in opposite directions.

4. The cleaning machine according to claim 1, characterized in that: The water absorbing component includes a transversely arranged water absorbing jacket, the injection pipe and the water absorbing pipe are arranged at intervals up and down, the second end of the water absorbing pipe and the second end of the injection pipe are arranged corresponding to the first end of the water absorbing jacket respectively, the part of the water absorbing jacket close to the first end forms a water drawing cavity connected with the water absorbing pipe and the injection pipe, the part of the water absorbing jacket close to the second end forms a matching cavity, a piston is reciprocatingly arranged in the water absorbing jacket, the end of the piston is connected to a piston rod extending into the matching cavity, and a driving part for driving the piston rod to reciprocate is exposed in the matching cavity.

5. The cleaning machine according to claim 4, characterized in that: A first one-way valve that only allows water to flow through the suction pipe and into the suction jacket is provided at the second end of the suction pipe, and a second guide valve that only allows water to flow through the suction jacket and into the injection pipe is provided at the first end of the injection pipe. The valve actuation structures of the first one-way valve and the second one-way valve are opposite.

6. The cleaning machine according to claim 4, characterized in that: The driving part is arranged under the water absorption sleeve, and the output shaft of the driving part is arranged in a direction. A first gear connected to the output shaft and rotating with the output shaft is provided at the bottom of the matching cavity. A gear ring is provided on the outer side wall of the first gear. A concave accommodating cavity is provided on the upper surface of the first gear. The peripheral wall of the accommodating cavity forms an inner gear ring. A first matching wheel that cooperates with the inner gear ring and rotates with the first gear is provided in the accommodating cavity. An offset rocker arm is provided on the upper surface of the first matching wheel. Correspondingly, a long hole that can cooperate with the rocker arm is provided at the end of the piston rod.

7. The cleaning machine according to any one of claims 1 to 6, characterized in that: The spray pipe is provided with a flow stabilizing structure which can stabilize the sprayed water flow. The flow stabilizing structure can be constrained in the spray pipe to move back and forth along the axial direction of the spray pipe and realize adaptive adjustment of the flow area through the impact force of the water flow.

8. The cleaning machine according to claim 7, characterized in that: The flow stabilizing structure includes a flow stabilizing sleeve, a threaded pipe section is formed near the first end of the injection pipe, the flow stabilizing sleeve is arranged in the injection pipe and the first end thereof has an external thread that cooperates with the threaded pipe section to restrict its axial movement, a water outlet is provided on the side wall of the flow stabilizing sleeve near the second end of the injection pipe, and the injection pipe is provided with a matching structure near the second end thereof that can cooperate with the second end of the flow stabilizing sleeve to increase or reduce the flow area.

9. The cleaning machine according to claim 8, characterized in that: The injection pipe forms a conical structure with a contraction near its second end. Correspondingly, the second end of the flow stabilizer forms a conical surface that can cooperate with the conical structure. When the flow stabilizer moves toward the second end of the injection pipe, the conical surface approaches the conical structure to reduce the flow area. When the flow stabilizer moves toward the first end of the injection pipe, the conical surface moves away from the conical structure to increase the flow area.

10. The cleaning machine according to claim 8, characterized in that: A step surface is formed between the threaded pipe section of the injection pipe and its downstream portion, and an elastic pad that can abut against the step surface is sleeved on the outer periphery of the stabilizer sleeve. The elastic pad controls the movement stroke of the stabilizer sleeve by providing compression during the reciprocating movement of the stabilizer sleeve.

11. The cleaning machine according to claim 8, characterized in that: An impeller is arranged at the first end of the flow stabilizing sleeve and can provide a rotational driving force for the flow stabilizing sleeve under the impact of water flow.

12. A cleaning method for a cleaning machine, characterized in that: A cleaning machine according to any one of claims 1 to 11 is used. When enhanced washing is required for a local area, the flow rate and water pressure required for enhanced washing are determined according to the placement, quantity or nature of the pollutants of the objects to be cleaned, and the power of the driving part is controlled. The enhanced washing parameters are controlled by directly controlling the amount of water absorbed by the suction pipe from the return water area, thereby providing a jet of water with a specific water flow rate and water pressure to a specific area.

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