Cleaning machine

By introducing a locking mechanism into the dishwasher, the problem of elastic lock failure caused by pushing and pulling the dish rack is solved, ensuring a reliable connection between the cleaning pipe and the water supply pipe, preventing water leakage, and improving cleaning efficiency.

CN223438459UActive Publication Date: 2025-10-17HANGZHOU ROBAM APPLIANCES CO LTD
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Patent Information

Application Number
CN202422877850.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-10-17
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

In existing dishwashers, the pushing and pulling motion of the dish rack can easily cause the elastic latch to fail, resulting in a seal failure at the connection between the water pipe and the inner tank water passage, which affects the spraying effect of the upper spray arm and reduces cleaning efficiency.

Method used

The system employs a locking structure, including a locking rod and a driving component. Through the movable connection of the locking rod and the driving of the driving component, a reliable connection between the cleaning pipe and the water supply pipe is achieved, avoiding shaking and seal failure caused by water pressure impact. The locking rod and driving component of the locking structure work together to ensure the reliability of the connection.

Benefits of technology

This effectively prevents water leakage at the connection between the cleaning pipe and the water supply pipe, ensuring the spraying effect and improving the cleaning efficiency of the dishwasher.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses a cleaning machine which comprises an inner container, a pipeline assembly, a shelf assembly and a locking structure, the locking structure comprises a locking rod and a driving piece, the locking rod is movably connected to a cleaning pipe, the middle of the locking rod is restrained to the cleaning pipe to form a first end and a second end which are oppositely arranged, and the first end and the second end are connected with the driving piece. The first end can be close to or far away from the water supply pipe, the driving part is movably connected to the shelf assembly, and the execution end of the driving part can be close to or far away from the locking rod and acts on the second end, so that the first end abuts against and is limited to the water supply pipe or far away from the water supply pipe to relieve limiting. According to the cleaning machine, failure and damage caused by the fact that push-pull force of the cleaning pipe directly acts on the locking structure can be avoided, and the problem that the cleaning effect of the cleaning machine is affected due to reduction of water pressure of cleaning water caused by water leakage at the connecting position is solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen appliance technical field, especially to cleaning machine. BACKGROUND

[0002] The dish washing machine is a kind of household appliance using washing pump to pressurize cleaning water and adopt inner container waterway to deliver to spray arm, and the cleaning water is sprayed out through the spray hole on the spray arm to impact the surface of tableware, so as to achieve the purpose of cleaning tableware, and the jet water pressure at the spray hole largely determines the cleaning performance of the dish washing machine.

[0003] The dish washing machine with multiple spray arms generally has lower spray arm arranged at the bottom of the inner container, and upper spray arm arranged on the tableware rack, and the tableware rack needs to be frequently pushed and pulled to realize the taking and placing of tableware, so the water guide pipe of upper spray arm and the inner container waterway are separated, the tableware rack is pushed into the inner container, and the water guide pipe of upper spray arm is connected with the inner container waterway. In the working state of the dish washing machine, the water pressure in the waterway is large, and the impact water pressure causes the shaking of the tableware rack, and the sealing failure at the connection between the water guide pipe and the inner container waterway is easily formed. Therefore, part of the dish washing machine sets elastic lock catch to connect and reinforce the water guide pipe and the inner container waterway, when the tableware rack needs to be pulled out, the pulling force of the tableware rack on the water guide pipe acts on the elastic lock catch to realize unlocking, and the movement of the water guide pipe drives the unlocking of the elastic lock catch, when the tableware rack is pushed back, the elastic lock catch is extruded by the water guide pipe to generate elastic force and is relocked. This way of pulling or pushing the water guide pipe to realize unlocking or locking is easy to cause the failure of the elastic lock catch, and the connection leakage phenomenon occurs, which leads to the poor spraying effect of upper spray arm and affects the cleaning efficiency of the dish washing machine. SUMMARY

[0004] The utility model discloses a cleaning machine, which can solve the problem that the pulling force of the tableware rack on the water guide pipe acts on the elastic lock catch to realize unlocking or locking, which easily causes the failure of the elastic lock catch, and further causes the connection leakage phenomenon, which leads to the poor spraying effect of upper spray arm and affects the cleaning efficiency of the dish washing machine.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The washing machine is provided with an opening at the front end, and comprises an inner container, a pipeline assembly and a rack assembly, the rack assembly is arranged in the inner container, the pipeline assembly comprises a water supply pipe connected to the inner container and a washing pipe connected to the rack assembly, the water supply pipe is used for providing washing water, the rack assembly is arranged to be able to reciprocate relative to the inner container along the front-back direction, so that the washing pipe can be connected to the water supply pipe or disconnected from the water supply pipe, and the washing machine further comprises a locking structure, the locking structure comprises a locking rod and a driving member, the locking rod is movably connected to the washing pipe, the middle part of the locking rod is constrained to the washing pipe to form a first end and a second end arranged oppositely, the first end can be close to or away from the water supply pipe, and the driving member is movably connected to the rack assembly, the execution end of the driving member can be close to or away from the locking rod and act on the second end, so that the first end abuts and is limited to the water supply pipe or is away from the water supply pipe to release the limitation.

[0007] As an optional structure of the utility model, one end of the execution end is rotatably connected to the rack assembly, and the rotation axis of the execution end is parallel to the rotation axis of the locking rod, the movable end of the driving member is used for driving the execution end to rotate so that the execution end is close to or away from the locking rod; when the execution end drives the second end to be close to the washing pipe, the first end is away from the water supply pipe to release the limitation.

[0008] As an optional structure of the utility model, the locking structure further comprises an elastic member, the elastic member is connected to the locking rod, and the elastic member is used for applying an elastic force to the locking rod so that the first end always has a tendency to move towards the water supply pipe to keep the limitation; and the execution end can act on the second end to make the first end overcome the elastic force to release the limitation.

[0009] As an optional structure of the utility model, the locking structure further comprises a moving member, the moving member is movably connected to the rack assembly, one end of the moving member is connected to the movable end, and the moving member moves relative to the rack assembly along the front-back direction to drive the movable end to drive the execution end to rotate.

[0010] As an optional structure of the utility model, the moving member has a first moving state of moving relative to the rack assembly along the front-back direction and a second moving state of moving synchronously with the rack assembly along the front-back direction, the first moving state and the second moving state occur in sequence; and / or,

[0011] The two ends of the movable end are hinged with the moving part and the executing end respectively, and the other end of the executing end away from the movable end is hinged with the shelf assembly, when the moving part moves along the front-back direction relative to the shelf assembly, the movable end acts and drives the executing end to rotate around the hinge shaft.

[0012] As an optional structure of the utility model, the moving part has a first moving state of moving along the front-back direction relative to the shelf assembly, and a second moving state of moving along the front-back direction synchronously with the shelf assembly, the locking structure further comprises a limiting mechanism arranged between the shelf assembly and the moving part, the limiting mechanism is used for abutting against the moving part to limit the moving part from moving along the front-back direction relative to the shelf assembly, when the limiting mechanism acts, the moving part can drive the shelf assembly to move along the front-back direction synchronously.

[0013] As an optional structure of the utility model, the limiting mechanism comprises a first limiting part and a second limiting part, the first limiting part is connected to the shelf assembly, the second limiting part is connected to the moving part, one of the first limiting part and the second limiting part has two limiting surfaces oppositely arranged along the front-back direction, a limiting groove is formed between the two limiting surfaces, the other of the first limiting part and the second limiting part can move in the limiting groove and abut against the limiting surface, the limiting surface is used for abutting against and limiting the moving part from moving relative to the shelf assembly.

[0014] As an optional structure of the utility model, the first end is provided with a second buckle, the water supply pipe is provided with a first buckle protruding from the outer pipe body along the axial direction, the second buckle and the first buckle can be buckled with each other to limit the first end on the water supply pipe.

[0015] As an optional structure of the utility model, the first buckle has a guide inclined surface towards one end of the locking rod, when the first end abuts against the water supply pipe, the second buckle can slide along the guide inclined surface to be buckled on the first buckle.

[0016] As an optional structure of the utility model, the locking structure further comprises a guide support, the guide support is arranged on the shelf assembly, the guide support has a guide hole penetrating along the front-back direction, and the moving part is movably arranged in the guide hole; and / or,

[0017] The cleaning machine is provided with two groups of locking structures, the two groups of locking structures are located on the two sides of the cleaning pipe along the up-down direction respectively, the cleaning machine further comprises a handle, and the moving parts of the two groups of locking structures are arranged at intervals on the handle.

[0018] The utility model discloses beneficial effects:

[0019] The cleaning machine provided by the utility model, which comprises a locking structure, the locking structure comprises a locking rod and a driving piece, the locking rod is movably connected to the cleaning pipe, the middle part of the locking rod is constrained to the cleaning pipe to form a first end and a second end arranged oppositely, the first end can be close to or away from the water supply pipe, the driving piece is movably connected to the shelf assembly, the execution end of the driving piece can be close to or away from the locking rod and act on the second end, so that the first end is abutted and limited to the water supply pipe or is away from the water supply pipe to release the limiting. When the first end is abutted and limited to the water supply pipe, the cleaning pipe can be limited to separate from the water supply pipe, the reliability of the connection between the cleaning pipe and the water supply pipe is ensured, and the shelf assembly is prevented from shaking due to water pressure impact. The reliable connection between the cleaning pipe and the water supply pipe is realized by the action of the driving piece and the rotation of the locking rod, compared with the elastic lock catch, the pushing and pulling force of the cleaning pipe is prevented from acting on the locking structure to cause failure, the locking structure is not prone to failure, the sealing property of the connection between the cleaning pipe and the water supply pipe is ensured, the problem that water leaks at the connection and then the spray effect is poor is avoided, and the cleaning efficiency of the cleaning machine is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a partial structure top view of the cleaning machine provided by the utility model embodiment;

[0021] Figure 2 is a partial structure side view of the cleaning machine provided by the utility model embodiment;

[0022] Figure 3 is Figure 2 the local enlarged view of part A;

[0023] Figure 4 is the structure schematic of the locking structure when the first end is not limited to the water supply pipe provided by the utility model embodiment Figure 1 ;

[0024] Figure 5 is the structure schematic of the locking structure when the first end is limited to the water supply pipe provided by the utility model embodiment

[0025] Figure 6 is the structure schematic of the locking structure when the first end is not limited to the water supply pipe provided by the utility model embodiment Figure 2 .

[0026] In the drawing:

[0027] 1, inner bag;

[0028] 2, pipeline assembly; 21, water supply pipe; 211, first buckle; 2111, guide inclined surface; 22, cleaning pipe; 23, spray arm; 24, sealing ring;

[0029] 3, shelf assembly;

[0030] 4, locking structure; 41, locking rod; 411, first end; 4111, second buckle; 412, second end; 42, driving piece; 421, execution end; 422, movable end; 43, moving piece; 44, limiting mechanism; 441, first limiting piece; 442, second limiting piece; 4421, limiting surface; 4422, limiting groove; 45, guide support piece; 451, guide hole; 5, handle. DETAILED DESCRIPTION

[0031] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all structures.

[0032] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0034] In the description of the embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description and have no special meaning.

[0035] As Figure 1 and Figure 2As shown, the utility model embodiment provides a kind of cleaning machine, and cleaning machine is used to solve the problem of sealing failure of water guide pipe and inner container waterway connection caused by the water pressure of inner container waterway impact being larger.Washing machine can wash tableware such as bowl and chopsticks, cooking utensils such as spatula, and also can wash food such as melon, fruit and vegetable.Cleaning machine includes inner container 1, pipeline assembly 2 and shelf assembly 3, and shelf assembly 3 is arranged in inner container 1, and shelf assembly 3 is used to accommodate to be washed object.Pipeline assembly 2 includes water supply pipe 21 connected to inner container 1 and cleaning pipe 22 connected to shelf assembly 3, and water supply pipe 21 is used to provide cleaning water with certain pressure, and cleaning pipe 22 is used to connect spray arm 23, and cleaning pipe 22 guides cleaning water into spray arm 23, and spray hole of spray arm 23 sprays cleaning water.Shelf assembly 3 can reciprocate relative to inner container 1 along front-back direction to enable cleaning pipe 22 to be connected with water supply pipe 21 or cleaning pipe 22 to be separated from water supply pipe 21, for easy description, Figure 2 Front-back direction is defined with the orientation of cleaning machine, and the orientation of opening is front.

[0036] Cleaning machine further includes locking structure 4, and locking structure 4 includes locking rod 41 and driving member 42, locking rod 41 is movably connected to cleaning pipe 22, and the middle part of locking rod 41 is constrained to cleaning pipe 22 to form relatively arranged first end 411 and second end 412, and first end 411 can be close to or away from water supply pipe 21, and driving member 42 is movably connected to shelf assembly 3, and the execution end 421 of driving member 42 can be close to or away from locking rod 41 and act on second end 412, to make first end 411 abut and be limited to water supply pipe 21, or away from water supply pipe 21 to remove the limit.When first end 411 abuts and is limited to water supply pipe 21, cleaning pipe 22 can be limited to separate from water supply pipe 21, to ensure the reliability of the connection between cleaning pipe 22 and water supply pipe 21, to avoid shelf assembly 3 to be shaken by water pressure impact.The reliable connection of cleaning pipe 22 and water supply pipe 21 is realized by the action of driving member 42 and the rotation of locking rod 41, compared with elastic lock, to avoid the push-pull force of cleaning pipe 22 acting on locking structure 4 to cause failure, and locking structure 4 is not easy to fail, to ensure the sealing property of the connection between cleaning pipe 22 and water supply pipe 21, to avoid the problem of poor spray effect caused by water leakage at the connection, to ensure the cleaning efficiency of cleaning machine.

[0037] The connection of water supply pipe 21 and cleaning pipe 22 has two ways, one is that water supply pipe 21 is inserted into cleaning pipe 22, and the other is that water supply pipe 21 is sleeved outside cleaning pipe 22. Figure 2 The connection mode that water supply pipe 21 is inserted into cleaning pipe 22 is shown, to increase the sealing performance of connection, and pipeline assembly 2 further includes annular sealing ring 24, and sealing ring 24 is arranged between water supply pipe 21 and cleaning pipe 22 to seal the gap between water supply pipe 21 and cleaning pipe 22.

[0038] One end of the execution end 421 is rotatably connected to the shelf assembly 3, and the rotation axis of the execution end 421 is parallel to the rotation axis of the locking rod 41. The active end 422 of the driving member 42 is used to drive the execution end 421 to rotate so as to make the execution end 421 close to or away from the locking rod 41. Since the middle part of the locking rod 41 is constrained to the cleaning pipe 22, the first end 411 and the second end 412 form a flap structure, and when the execution end 421 drives the second end 412 to close to the cleaning pipe 22, the first end 411 is away from the water supply pipe 21 to disengage the limiting.

[0039] In order to ensure the reliability of the limiting connection between the first end 411 and the water supply pipe 21, the locking structure 4 further comprises a resilient member connected to the locking rod 41, and the resilient member is used to apply an elastic force to the locking rod 41 so that the first end 411 always has a tendency to move towards the water supply pipe 21 to keep the limiting. Moreover, when the execution end 421 acts on the second end 412, the acting force of the execution end 421 can drive the first end 411 to overcome the elastic force to disengage the limiting. Specifically, in an embodiment, the resilient member adopts a torsion spring, the torsion spring is sleeved on the rotation shaft of the locking rod 41, and the torsion arm of the torsion spring acts on the locking rod 41, so that the first end 411 always keeps a tendency to move towards the water supply pipe 21 to form a limiting state. When it is needed to release the limiting of the first end 411 and the water supply pipe 21, the execution end 421 drives the second end 412 to close to the cleaning pipe 22, so that the first end 411 overcomes the elastic force and disengages the limiting.

[0040] In order to realize the driving action of the active end 422, the locking structure 4 further comprises a moving member 43 movably connected to the shelf assembly 3. One end of the moving member 43 is connected to the active end 422, and the moving member 43 moves along the front and back directions relative to the shelf assembly 3 to drive the active end 422 to drive the execution end 421 to rotate.

[0041] The two ends of the active end 422 are respectively hinged to the moving member 43 and the execution end 421, and the other end of the execution end 421 away from the active end 422 is hinged to the shelf assembly 3. When the moving member 43 moves along the front and back directions relative to the shelf assembly 3, the active end 422 acts and drives the execution end 421 to rotate around the hinge shaft.

[0042] When the moving member 43 drives one end of the active end 422 to move along the front and back directions, the execution end 421 rotates relative to the shelf assembly 3 around the hinge shaft to drive the second end 412 to rotate around the rotation shaft of the locking rod 41. Figure 5 And Figure 6 For example, Figure 5This is a schematic diagram of the water supply pipe 21 connected to the cleaning pipe 22 and the locking structure 4 in a limited state. When the locking structure 4 needs to release the limit of the first end 411, the moving part 43 drives one end of the movable end 422 to move away from the water supply pipe 21, and the execution end 421 rotates counterclockwise and presses down the second end 412. The second end 412 drives the entire locking rod 41 to rotate, so that the first end 411 is away from the water supply pipe 21 and out of the limit.

[0043] The movable member 43 has a first moving state in which it moves relative to the shelf assembly 3 in the front-to-back direction, and a second moving state in which it moves synchronously with the shelf assembly 3 in the front-to-back direction. The first moving state and the second moving state occur successively. In the first moving state, the movable member 43 moves relative to the shelf assembly 3 in the front-to-back direction, thereby driving the movable end 422 to drive the execution end 421 to rotate. The rotation of the execution end 421 causes the second end 412 to approach the cleaning pipe 22 and the first end 411 to move away from the water supply pipe 21 to escape from the limit. Subsequently, the movable member 43 enters the second moving state. Since the locking structure 4 has released the limit between the locking rod 41 and the water supply pipe 21, the shelf assembly 3 can drive the cleaning pipe 22 to escape from the inner tank 1. The order of the movement states of the moving part 43 conforms to the order of first releasing the limiting state of the locking structure 4 and then separating the cleaning pipe 22 from the water supply pipe 21. The movement of the cleaning pipe 22 and the releasing of the limiting action of the locking structure 4 do not occur at the same time. When the cleaning pipe 22 moves, the locking structure 4 is already in the releasing state, which avoids the pulling force of the cleaning pipe 22 directly acting on the locking structure 4 to cause failure and damage, and prevents the cleaning pipe 22 from being loosened by the water flow during normal operation, thereby ensuring the reliability of the connection between the water supply pipe 21 and the cleaning pipe 22, and avoiding water leakage at the connection causing a decrease in the water pressure of the cleaning water, thereby affecting the cleaning effect of the cleaning machine.

[0044] The above process is the process of the locking structure 4 from the restricted state to the released restricted state. Similarly, in the process of the locking structure 4 from the released restricted state to the restricted state, the first moving state and the second moving state of the moving member 43 also occur successively. The process is as follows: when the cleaning pipe 22 needs to be connected to the water supply pipe 21, the moving member 43 is pushed in the front-to-back direction. When the moving member 43 drives one end of the movable end 422 to move toward the direction close to the water supply pipe 21 (refer to Figure 4 ), the moving member 43 drives the execution end 421 to rotate clockwise to approach the locking rod 41, until the execution end 421 acts on the second end 412 to make the first end 411 away from the water supply pipe 21; then, when the moving member 43 moves to the second moving state, the moving member 43 drives the cleaning pipe 22 to approach the water supply pipe 21 through the synchronous movement of the shelf assembly 3, and the locking rod 41 forms a limit position between the first end 411 and the water supply pipe 21 under the action of the elastic force, as shown in FIG. Figure 5 shown.

[0045] The second end 412 and the first end 411 are arranged at an angle, so that the second end 412 is closer to the driving member 42. On the one hand, the execution end 421 only needs a small movement to trigger the movement of the second end 412. On the other hand, it avoids collision and interference between the second end 412 and the pipeline assembly 2 when rotating.

[0046] The movable member 43 has a first movable state in which it moves relative to the shelf assembly 3 in the front-to-back direction, and a second movable state in which it moves synchronously with the shelf assembly 3 in the front-to-back direction. To achieve the transition between these two states, the locking structure 4 also includes a limiting mechanism 44 disposed between the shelf assembly 3 and the movable member 43. The limiting mechanism 44 is used to abut the movable member 43 to limit its movement relative to the shelf assembly 3 in the front-to-back direction. When the limiting mechanism 44 is activated, the movable member 43 can drive the shelf assembly 3 to move synchronously in the front-to-back direction. The user can manually push or pull the movable member 43 to control the state of the shelf assembly 3.

[0047] Specifically, if Figure 3 As shown, the limiting mechanism 44 includes a first limiting member 441 and a second limiting member 442, the first limiting member 441 is connected to the shelf assembly 3, and the second limiting member 442 is connected to the movable member 43, one of the first limiting member 441 and the second limiting member 442 has two limiting surfaces 4421 arranged opposite to each other in the front-to-back direction, and a limiting groove 4422 is formed between the two limiting surfaces 4421, and the other of the first limiting member 441 and the second limiting member 442 can move in the limiting groove 4422 and abut the limiting surface 4421, and the limiting surface 4421 is used to abut and limit the movement of the movable member 43 relative to the shelf assembly 3.

[0048] Exemplarily, the second limiting member 442 is connected to the moving member 43, and the second limiting member 442 has two limiting surfaces 4421 oppositely arranged along the front-rear direction, wherein the limiting surface 4421 closer to the water supply pipe 21 along the front-rear direction is used for abutting against the moving member 43 to limit when the shelf assembly 3 is pulled out of the inner container 1, and the limiting surface 4421 farther from the water supply pipe 21 along the front-rear direction is used for abutting against the moving member 43 to limit when the shelf assembly 3 is pushed into the inner container 1. Specifically, with the movement of the moving member 43, the moving member 43 moves relative to the shelf assembly 3, and the first limiting member 441 reciprocates in the limiting groove 4422 relative to the moving member 43, when it is needed to pull the shelf assembly 3 out of the inner container 1, the moving member 43 moves to realize the relative movement of the first limiting member 441 in the limiting groove 4422, and at the same time, the action of the locking structure 4 is realized to release the limiting; when the first limiting member 441 abuts against the closer limiting surface 4421, the moving member 43 drives the shelf assembly 3 to move at the same time, so that the cleaning pipe 22 is separated from the water supply pipe 21. When it is needed to push the shelf assembly 3 into the inner container 1 from the outside, the moving member 43 moves to realize the reverse relative movement of the first limiting member 441 in the limiting groove 4422, and when the moving member 43 abuts against the farther limiting surface 4421, the moving member 43 drives the shelf assembly 3 to move at the same time, so that the cleaning pipe 22 is connected to the water supply pipe 21.

[0049] In order to realize the reliability of the abutment and limitation of the first end 411 to the water supply pipe 21, the first end 411 is provided with a second buckle 4111, and the water supply pipe 21 is provided with a first buckle 211 protruding from the outer pipe body along the axial direction, and the second buckle 4111 and the first buckle 211 can be buckled with each other to limit the first end 411 to the water supply pipe 21. Exemplarily, as shown in Figure 4 to Figure 6 When the water supply pipe 21 and the cleaning pipe 22 are close to each other and connected, the second buckle 4111 and the first buckle 211 can be buckled with each other to ensure the connection reliability of the water supply pipe 21 and the cleaning pipe 22 (see Figure 5 ); when it is needed to separate the water supply pipe 21 and the cleaning pipe 22, the driving member 42 can drive the locking rod 41 to move relative to the pipeline assembly 2 and drive the second buckle 4111 to separate from the first buckle 211, and the locking structure 4 will not hinder the axial movement of the cleaning pipe 22.

[0050] The first buckle 211 has a guide slope 2111 towards one end of the locking rod 41, and when the first end 411 abuts against the water supply pipe 21, the second buckle 4111 can slide along the guide slope 2111 to be buckled to the first buckle 211. The guide slope 2111 provides guidance to the second buckle 4111, improves the convenience of buckling the second buckle 4111 and the first buckle 211 to each other, and avoids that the second buckle 4111 cannot be buckled to the first buckle 211 smoothly due to the existence of the elastic member. Moreover, when the second buckle 4111 slides along the guide slope 2111 to the buckled state with the first buckle 211, a "click" prompt sound is emitted to prompt the user to complete the connection of the water supply pipe 21 and the cleaning pipe 22, and the use is more convenient.

[0051] Since the moving member 43 is in a thin rod structure, the locking structure 4 further comprises a guide support member 45, which is arranged on the shelf assembly 3 and has a guide hole 451 penetrating in the front-rear direction, and the moving member 43 is movably arranged in the guide hole 451. The guide support member 45 is used for supporting the moving member 43. A plurality of guide support members 45 are arranged in the front-rear direction. In an embodiment, one of the plurality of guide support members 45 can be used as the first limiting member 441 to simplify the structure.

[0052] The cleaning machine is provided with two groups of locking structures 4, which are respectively arranged on the two sides of the cleaning pipe 22 in the up-down direction, thereby increasing the reliability of the locking structure 4 in the limiting state. The cleaning machine further comprises a handle 5, and the moving members 43 of the two groups of locking structures 4 are arranged in the handle 5, so that the user can control the action of the moving member 43 through the handle 5.

[0053] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation to the embodiments of the utility model. For the ordinary skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the utility model. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A cleaning machine having an opening at the front end, comprising an inner tank (1), a pipe assembly (2) and a shelf assembly (3), wherein the shelf assembly (3) is arranged in the inner tank (1), the pipe assembly (2) comprises a water supply pipe (21) connected to the inner tank (1) and a cleaning pipe (22) connected to the shelf assembly (3), wherein the water supply pipe (21) is used to provide cleaning water, and the shelf assembly (3) is arranged to be able to reciprocate relative to the inner tank (1) along the front-back direction so that the cleaning pipe (22) can be plugged into and connected to the water supply pipe (21) or the cleaning pipe (22) can be disconnected from the water supply pipe (21), characterized in that: The cleaning machine further comprises a locking structure (4), the locking structure (4) comprising a locking rod (41) and a driving member (42), the locking rod (41) being movably connected to the cleaning pipe (22), the middle portion of the locking rod (41) being constrained to the cleaning pipe (22) to form a first end (411) and a second end (412) arranged opposite to each other, the first end (411) being able to approach or move away from the water supply pipe (21), the driving member (42) being movably connected to the shelf assembly (3), the execution end (421) of the driving member (42) being able to approach or move away from the locking rod (41) and act on the second end (412), so that the first end (411) abuts against and is limited to the water supply pipe (21), or moves away from the water supply pipe (21) to release the limit.

2. The cleaning machine according to claim 1, characterized in that One end of the execution end (421) is rotatably connected to the shelf assembly (3), and the rotation axis of the execution end (421) is parallel to the rotation axis of the locking rod (41). The movable end (422) of the driving member (42) is used to drive the execution end (421) to rotate so that the execution end (421) approaches or moves away from the locking rod (41); when the execution end (421) drives the second end (412) to approach the cleaning pipe (22), the first end (411) moves away from the water supply pipe (21) to escape from the limit.

3. The cleaning machine according to claim 2, characterized in that The locking structure (4) further comprises an elastic member connected to the locking rod (41), and the elastic member is used to apply an elastic force to the locking rod (41) so that the first end (411) always has a tendency to move toward the water supply pipe (21) to maintain the limit; and the execution end (421) can act on the second end (412) so that the first end (411) overcomes the elastic force to escape from the limit.

4. The cleaning machine according to claim 2, characterized in that The locking structure (4) further comprises a moving member (43), the moving member (43) being movably connected to the shelf assembly (3), one end of the moving member (43) being connected to the movable end (422), and the moving member (43) moving in a front-to-rear direction relative to the shelf assembly (3) to drive the movable end (422) to rotate the execution end (421).

5. The cleaning machine according to claim 4, characterized in that The moving member (43) has a first moving state in which it moves relative to the shelf assembly (3) in a front-to-rear direction, and a second moving state in which it moves synchronously with the shelf assembly (3) in the front-to-rear direction, the first moving state and the second moving state occurring successively; and / or, The two ends of the movable end (422) are hinged to the moving member (43) and the execution end (421) respectively, and the other end of the execution end (421) away from the movable end (422) is hinged to the shelf assembly (3). When the movable member (43) moves relative to the shelf assembly (3) in the front-back direction, the movable end (422) moves and drives the execution end (421) to rotate around the hinge axis.

6. The cleaning machine according to claim 5, characterized in that The movable member (43) has a first moving state in which it moves relative to the shelf assembly (3) in the front-rear direction, and a second moving state in which it moves synchronously with the shelf assembly (3) in the front-rear direction. The locking structure (4) further comprises a limiting mechanism (44) arranged between the shelf assembly (3) and the movable member (43). The limiting mechanism (44) is used to abut against the movable member (43) to limit the movable member (43) from moving relative to the shelf assembly (3) in the front-rear direction. When the limiting mechanism (44) is actuated, the movable member (43) can drive the shelf assembly (3) to move synchronously in the front-rear direction.

7. The cleaning machine according to claim 6, characterized in that The limiting mechanism (44) includes a first limiting member (441) and a second limiting member (442), wherein the first limiting member (441) is connected to the shelf assembly (3), and the second limiting member (442) is connected to the movable member (43), and one of the first limiting member (441) and the second limiting member (442) has two limiting surfaces (4421) arranged opposite to each other in the front-to-back direction, and a limiting groove (4422) is formed between the two limiting surfaces (4421), and the other of the first limiting member (441) and the second limiting member (442) can move in the limiting groove (4422) and abut against the limiting surface (4421), and the limiting surface (4421) is used to abut and limit the movement of the movable member (43) relative to the shelf assembly (3).

8. The cleaning machine according to claim 1, characterized in that The first end (411) is provided with a second buckle (4111), and the water supply pipe (21) is provided with a first buckle (211) protruding axially from the outer tube body, and the second buckle (4111) and the first buckle (211) can be engaged with each other to limit the first end (411) to the water supply pipe (21).

9. The cleaning machine according to claim 8, characterized in that The first buckle (211) has a guide slope (2111) at one end facing the locking rod (41), and when the first end (411) abuts against the water supply pipe (21), the second buckle (4111) can slide along the guide slope (2111) to be buckled with the first buckle (211).

10. The cleaning machine according to claim 4, characterized in that The locking structure (4) further comprises a guide support member (45), the guide support member (45) being arranged on the shelf assembly (3), the guide support member (45) having a guide hole (451) penetrating along the front-back direction, the movable member (43) being movably arranged in the guide hole (451); and / or, The cleaning machine is provided with two groups of the locking structures (4), and the two groups of the locking structures (4) are respectively located on both sides of the cleaning pipe (22) in the up and down directions. The cleaning machine also includes a handle (5), and the movable parts (43) of the two groups of the locking structures (4) are spaced apart from each other on the handle (5).