A cleaning machine

Abstract

The present invention relates to a washing machine, including a water tank body and a door body. The water tank body is hollow inside to form a washing space. The washing space has a top opening. The door body can be arranged on the water tank body to open or close the top opening. The door body can be arranged on the water tank body to open and close horizontally relative to the top opening. The edge of the top opening is provided with a first sealing gasket and a second sealing gasket arranged at intervals up and down. The edge of the top opening is also provided with an elastic component constrained on the second sealing gasket and making the first sealing gasket always keep a tendency to be closely attached to the closed door body. The door body of the present invention can be arranged on the water tank body to open and close horizontally relative to the top opening. When the door body is closed relative to the top opening, the lower surface edge of the door body is in direct contact with the first sealing gasket, and the elastic component makes the first sealing gasket and the lower surface of the door body always maintain a relatively tight state, thereby improving the sealing effect of the door body of the washing machine and avoiding the occurrence of overflow problems.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning machines, and in particular to a cleaning machine capable of improving the sealing performance of a door body. Background Art

[0002] As people's living standards continue to improve, dishwashers, as a kitchen appliance, are increasingly entering households. Currently, dishwashers on the market are generally divided into three types: desktop, cabinet, and tank. Among them, desktop dishwashers are integrated independent structures and are generally placed on the table for use; cabinet dishwashers are also independent structures, but need to be embedded in kitchen cabinets for use; tank dishwashers are combined with sinks and are generally installed in kitchen cabinets for use.

[0003] Due to the limitation of the cabinet, the door structure of the sink-type cleaning machine is generally a flap-type structure, such as the structure disclosed in the Chinese patent application "Sink-type cleaning machine" (application number: CN201710939807.5) with application publication number CN108056732A, in which the cleaning machine has a sink body with a washing space and an open top, and a cover plate that is movably arranged on the top of the sink body and can be opened or closed relative to the top opening of the sink body. The edge of the cover plate is connected to the top open edge of the sink body through a damping shaft. When opening, the cover plate needs to be manually flipped backwards. When closing, the user needs to press the door body by hand, which is not only inconvenient to use, but also the door body that is naturally pressed down by gravity has poor sealing with the top open edge of the sink body. When the water temperature in the sink is high, there is a problem of overflow, which affects the use.

[0004] Therefore, for current water tank type cleaning machine, further improvement needs to be made. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a cleaning machine capable of keeping the door body and the top edge of the water tank body in a relatively tight state at all times so as to improve the sealing performance in view of the current status of the prior art.

[0006] Another technical problem to be solved by the present invention is to provide a cleaning machine which can automatically roll up or unfold the door body and is easy to operate in view of the current status of the prior art.

[0007] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a cleaning machine, including a sink body and a door body, the sink body is hollow inside to form a washing space, the washing space has a top opening, and the door body can be arranged on the sink body to open or close the top opening, characterized in that: the door body can be arranged on the sink body to open and close horizontally relative to the top opening, the edge of the top opening is provided with a first sealing gasket and a second sealing gasket arranged at intervals up and down, and the edge of the top opening is also provided with an elastic component that constrains the second sealing gasket and keeps the first sealing gasket always in a tendency to stick to the closed door body.

[0008] In the above scheme, the top open edge of the water tank body has a horizontally arranged support platform, the first sealing gasket and the second sealing gasket are both arranged on the support platform and the lower surface of the first sealing gasket is bonded to the upper surface of the second sealing gasket, the lower end of the elastic component is supported on the support platform, and the upper end of the elastic component passes through the second sealing gasket and abuts against the lower surface of the first sealing gasket. This structure always plays a role of pushing up the first sealing gasket, thereby improving the sealing effect between the closed door body and the first sealing gasket.

[0009] The elastic component of the present invention comprises

[0010] The support column is cylindrical and the lower part of the support column is hollow to form an assembly cavity;

[0011] An elastic sleeve is arranged at the upper end of the support column, the elastic sleeve is in an umbrella-like structure with a small upper end and a large lower end and can shrink or bounce in the radial direction under external force;

[0012] A first telescopic column, the upper end of which is inserted into the assembly cavity of the support column so as to be movable up and down;

[0013] A first elastic member is sleeved on the outer circumference of the first telescopic column and makes the first telescopic column always maintain a tendency to extend out of the assembly cavity;

[0014] In the assembled state, at least the upper end of the elastic sleeve umbrella-shaped structure contacts the lower surface of the first sealing gasket.

[0015] When assembling the elastic component with the first sealing gasket and the second sealing gasket, firstly bond the lower surface of the first sealing gasket to the lower surface of the second sealing gasket by glue, and then push the umbrella-shaped structure end of the elastic sleeve upward from the lower end of the second sealing gasket. During this process, the umbrella-shaped structure contracts inward. After assembly, the umbrella-shaped structure unfolds, thereby generating a larger relative force application surface for the lower surface of the first sealing gasket, thereby avoiding local deformation of the first sealing gasket.

[0016] In order to facilitate assembly, a vertically arranged assembly opening is provided on the inner wall of the middle part of the elastic sleeve, and the upper end of the support column is connected to the assembly opening.

[0017] Preferably, the support column is provided with a radially penetrating assembly hole, the first end of the assembly hole is provided with a second telescopic column that can be axially telescopic along the assembly hole, the outer end of the second telescopic column is against the inner wall of the elastic sleeve, the second end of the assembly hole is provided with a third telescopic column that can be axially telescopic along the assembly hole, the outer end of the third telescopic column is against the inner wall of the elastic sleeve, and the elastic sleeve is further provided with a second elastic member that can keep the second telescopic column and the third telescopic column always extending out of the assembly hole and the elastic sleeve tending to bounce up. The second elastic member passes through the assembly hole and respectively abuts against the inner walls of the elastic sleeve corresponding to the second telescopic column and the third telescopic column.

[0018] In order to facilitate assembly, a through hole is provided on the second sealing gasket for the elastic component to pass through, and a first clamp is provided at the lower edge of the through hole. Correspondingly, a second clamp is provided on the outer wall of the upper part of the support column corresponding to the upper end of the assembly cavity. When the assembly is completed, the lower part of the elastic sleeve is located in the through hole, the upper part of the elastic sleeve extends out of the through hole and abuts against the lower surface of the first sealing gasket, the lower edge of the elastic sleeve abuts against the upper surface of the first clamp, and the second clamp abuts against the lower surface of the first clamp. This structure can hide the umbrella-shaped structure part in the through hole, avoiding high-temperature steam from contacting the elastic sleeve with a large area and affecting the service life of the elastic sleeve. At the same time, it ensures that the elastic sleeve has sufficient contact area with the first sealing gasket to improve the sealing effect.

[0019] As a moving solution of the door body, the door body is a flat plate structure and is arranged on the top opening of the water tank body in a horizontally movable manner. A driving mechanism that can push the door body to move back and forth can be arranged on one side of the water tank body.

[0020] As another solution for moving the door body, the door body is a flexible door plate structure that can be rolled or extended, a rotatable scroll is provided at the edge of the top opening of the water tank body, one edge of the door body is connected to the scroll along the axial direction of the scroll, and the water tank body is also provided with a winding mechanism that can drive the scroll to rotate so as to roll the door body on the scroll or stretch it relative to the scroll, when the door body is rolled on the scroll, the top opening is opened, and when the door body is fully extended relative to the scroll, the top opening is closed. The door body can be wound around the scroll or stretched relative to the scroll by the winding mechanism to realize the opening and closing of the door body, and the whole process is completed automatically, which is convenient to operate.

[0021] In the above scheme, the winding mechanism includes

[0022] A motor is disposed on the outer wall of the water tank body so as to be movable up and down, and an output shaft at a first end of the motor extends laterally to the outside of the water tank body;

[0023] A first gear, disposed on the output shaft of the motor;

[0024] a second gear, disposed at an end of the reel;

[0025] A gear belt, drivingly connected between the first gear and the second gear;

[0026] A third gear is arranged outside the first gear;

[0027] a rack, vertically arranged on the water tank body and located outside the motor, the rack being meshed and connected with the third gear; and

[0028] A connecting member, a first end of which is rotatably connected to an outer end surface of the second gear, and a second end of which is rotatably connected to an outer end surface of the third gear.

[0029] With the above structure, when the door body needs to be opened, the motor runs, and the reel is driven to rotate through the first gear, the gear belt and the second gear, so that the door body is wrapped around the outer circumference of the reel. During this process, the reel will continue to thicken, and the third gear drives the motor to move upward, so that the reel can produce an upward displacement while keeping rotating, so as to provide sufficient space for the winding of the door body; when the door body needs to be closed, the motor is run in the reverse direction, and the reel is driven to rotate through the first gear, the gear belt and the second gear, so that the door body gradually extends outward from the reel. During this process, the reel will continue to thin, and the third gear drives the motor to move downward, so that the reel can produce a downward displacement while keeping rotating, so as to maintain contact with the edge of the water tank body and play a sealing role.

[0030] In order to improve the stability of the motor's up and down movement, a baffle is provided at the second end of the motor, and the baffle is connected to the middle part of the connecting member with a connecting shaft arranged along the axial direction of the first gear.

[0031] Preferably, a vertically extending guide groove is provided on the outer side wall of the water tank body, and correspondingly, a connecting arm extending toward the guide groove is provided on the outer periphery of the motor, and a clamping foot that can be clamped in the guide groove and slidably cooperate with the guide groove is provided at the end of the connecting arm. This structure is conducive to further improving the stability of the motor moving up and down to cooperate with the thickening or thinning reel.

[0032] In order to facilitate assembly, a mounting plate extending along the axial direction of the first gear is provided on the edge of the outer side wall of the water tank body, and the rack is provided on the mounting plate.

[0033] Preferably, the interior of the reel is hollow to form a receiving cavity, the reel is arranged along the length direction of the open edge of the top of the water tank body, a plug is opened in the axial direction on one side of the reel corresponding to the corresponding edge of the door panel, the corresponding edge of the door body extends into the receiving cavity through the plug and has a limit strip that can prevent the door body from separating from the reel. This structure is adopted to realize the winding of the door body.

[0034] In the above preferred solutions, the outer edge of the top opening of the water tank body is formed with a support platform that can fit with the door body, and the outer edge of the support platform has a peripheral edge arranged higher than the upper surface of the support platform, and the peripheral edge is provided with a slide arranged perpendicular to the direction of the scroll axis. Correspondingly, a guide block that can cooperate with the guide of the slide groove is provided on the side wall of the door body away from the end of the scroll axis. This structure can ensure that the door body is always constrained at the top opening edge during the rolling or stretching process, and provide a guiding effect for the opening and closing of the door body.

[0035] Preferably, a first position sensor capable of detecting whether the door body has completely closed the top opening is provided at one end of the water tank body, and the first position sensor is arranged corresponding to the first end of the slide groove away from the reel, and a second position sensor capable of detecting whether the door body has completely opened the top opening is provided at the other end of the water tank body, and the second position sensor is arranged corresponding to the second end of the slide groove close to the reel. This structure is provided so that the motor can be stopped after the door body is detected to be completely closed or fully opened.

[0036] Compared with the prior art, the advantages of the present invention are: the door body of the present invention can be opened and closed horizontally relative to the top opening and is arranged on the water tank body. When the door body is closed relative to the top opening, the lower surface edge of the door body is in direct contact with the first sealing gasket, and the elastic component makes the first sealing gasket and the lower surface of the door body always maintain a relatively tight state, thereby improving the sealing effect of the cleaning machine door body and avoiding the occurrence of overflow problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0038] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0039] Figure 3 for Figure 1 Schematic diagram of the structure of the hidden door body;

[0040] Figure 4 This is a schematic diagram of the connection structure between the door body and the scroll in Example 1 of the present invention;

[0041] Figure 5 This is a schematic structural diagram of the assembly relationship between the motor and the first gear and the third gear in Embodiment 1 of the present invention;

[0042] Figure 6 for Figure 3 Exploded diagram of

[0043] Figure 7 for Figure 6 A further enlarged view of a portion of the diagram;

[0044] Figure 8is a cross-sectional view of the elastic component in Example 1 of the present invention;

[0045] Fig. 9 It is a cross-sectional view of the second sealing gasket in Example 1 of the present invention. DETAILED DESCRIPTION

[0046] The present invention is further described in detail below with reference to the accompanying drawings.

[0047] Embodiment 1:

[0048] like Figures 1 to 9 As shown, the washing machine of this embodiment includes a water tank body 1, a door body 2, a reel 3 and a winding mechanism 4. The water tank body 1 is hollow inside to form a washing space 10. The washing space 10 has a top opening 101. The door body 2 can be arranged on the water tank body 1 to open or close the top opening 101. The reel 3 is rotatably arranged on the edge of the top opening 101 of the water tank body 1. One edge of the door body 2 is connected to the reel 3 along the axial direction of the reel 3. The winding mechanism 4 is arranged on the outer side wall of the water tank body 1 and is used to drive the reel 3 to rotate, so as to reel the door body 2 on the reel 3 or stretch it relative to the reel 3. When the door body 2 is wound on the reel 3, the top opening 101 is opened. When the door body 2 is fully stretched relative to the reel 3, the top opening 101 is closed. The door body 2 of this embodiment is made of a material that can be rolled up and has a certain flexibility and rigidity.

[0049] The winding mechanism 4 of this embodiment is divided into two groups, and one group of winding mechanisms 4 is connected to each end of the reel 3 to improve the stability of the door body 2 when opening or closing. Each group of winding mechanisms 4 includes a motor 41, a first gear 42, a second gear 43, a gear belt 44, a third gear 45, a rack 46 and a connecting member 47. The motor 41 is arranged on the outer wall of the water tank body 1 so as to be movable up and down and arranged corresponding to the reel 3. The output shaft of the first end of the motor 41 extends horizontally to the outside of the water tank body 1. The first gear 42 is arranged on the output shaft of the motor 41, the second gear 43 is arranged at the end of the reel 3, the gear belt 44 is transmission-connected between the first gear 42 and the second gear 43, the third gear 45 is arranged on the outside of the first gear 42, the rack 46 is vertically arranged on the water tank body 1 and located on the outside of the motor 41, the rack 46 is meshed and connected with the third gear 45, the first end of the connecting member 47 is rotatably connected to the outer end surface of the second gear 43, and the second end of the connecting member 47 is rotatably connected to the outer end surface of the third gear 45.

[0050] Specifically, a baffle plate 411 is provided at the second end of the motor 41, and a connecting shaft 48 arranged axially along the first gear 42 is connected to the baffle plate 411 and the middle part of the connecting member 47, and this structure is conducive to improving the stability of the motor 41 moving up and down. A vertically extending guide groove 49 is provided on the outer side wall of the water tank body 1 corresponding to the reel 3, and correspondingly, a connecting arm 412 extending toward the guide groove 49 is provided on the outer periphery of the motor 41, and a clamping foot 413 that can be clamped in the guide groove 49 and slidably cooperates with the guide groove 49 is provided at the end of the connecting arm 412, and this structure is conducive to further improving the stability of the motor 41 moving up and down to cooperate with the thickened or thinned reel 3.

[0051] For easy assembly, the edge of the outer wall of the water tank body 1 is provided with a mounting plate 11 extending axially along the first gear 42, and the rack 46 is vertically arranged on the mounting plate 11. The interior of the reel 3 is hollow to form a receiving chamber 30, and the reel 3 is arranged along the length direction of the edge of the top opening 101 of the water tank body 1. The side of the reel 3 corresponding to the corresponding edge of the door panel 2 is provided with an axially arranged plug 31, and the corresponding edge of the door body 2 extends into the receiving chamber 30 through the plug 31 and has a limit strip 21 that can prevent the door body 2 from being separated from the reel 3, so as to realize the winding of the door body 2.

[0052] In this embodiment, the outer edge of the top opening 101 of the water tank body 1 is formed with a horizontally arranged support platform 12 that can be relatively fitted with the door body 2. The outer edge of the support platform 12 has a peripheral edge 13 arranged higher than the upper surface of the support platform 12. The peripheral edge 13 is provided with a slide groove 131 arranged in the direction of the vertical scroll 3. Correspondingly, a guide block 22 that can cooperate with the slide groove 131 is provided on the side wall of the door body 2 away from the scroll 3. This structure can ensure that the door body 2 is always constrained at the edge of the top opening 101 during the rolling or stretching process, and provide a guiding effect for the opening and closing of the door body 2. A first position sensor 15 that can detect whether the door body 2 completely closes the top opening 101 is provided at one end of the water tank body 1. The first position sensor 15 is arranged corresponding to the first end of the slide groove 131 away from the scroll 3. The other end of the water tank body 1 is provided with a second position sensor 14 that can detect whether the door body 2 completely opens the top opening 101. The second position sensor 14 is arranged corresponding to the second end of the slide groove 131 close to the scroll 3. This structure is provided so as to stop the operation of the motor 41 after detecting that the door body 2 is in a fully closed or fully opened state.

[0053] The support platform 12 of the present embodiment is provided with a sealing component 5 arranged along the periphery of the top opening 101, and the upper surface of the sealing component 5 is arranged below the slide groove 131. The sealing component 5 includes a first sealing pad 51, a second sealing pad 52, and an elastic component 53 that can at least keep the first sealing pad 51 in an upwardly lifted state, which are arranged at intervals from top to bottom. Among them, the first sealing pad 51 is made of materials such as silicone and rubber with relatively high elasticity, and the second sealing pad 52 mainly plays the role of positioning and installing the first sealing pad 51 and the elastic component 53. Therefore, the second sealing pad 52 is made of a plastic plate or metal plate material with a relatively hard texture. The elastic component 53 of the present embodiment is constrained on the second sealing pad 52 and keeps the first sealing pad 51 in a tendency to always be in close contact with the closed door body 2. The first sealing gasket 51 and the second sealing gasket 52 are both arranged on the support platform 12 and the lower surface of the first sealing gasket 51 is bonded to the upper surface of the second sealing gasket 52. The lower end of the elastic component 53 is supported on the support platform 12, and the upper end of the elastic component 53 passes through the second sealing gasket 52 and abuts against the lower surface of the first sealing gasket 51.

[0054] Specifically, the elastic component 53 of this embodiment includes a support column 531, an elastic sleeve 532, a first telescopic column 533 and a first elastic member 534. The support column 531 is cylindrical, and the lower interior of the support column 531 is hollow to form an assembly cavity 5310. The elastic sleeve 532 is arranged at the upper end of the support column 531. The elastic sleeve 532 is an umbrella-shaped structure 5321 with a small upper end and a large lower end and can shrink or bounce radially under external force. The upper end of the first telescopic column 533 can be inserted into the assembly cavity 5310 of the support column 531 so as to move up and down. The first elastic member 534 is a spring sleeved on the outer periphery of the first telescopic column 533, so that the first telescopic column 533 always maintains a tendency to extend out of the assembly cavity 5310. When the assembly is completed, the upper end of the umbrella-shaped structure 5321 of the elastic sleeve 532 contacts the lower surface of the first sealing gasket 51. A vertically arranged assembly opening 5322 is provided on the inner wall of the middle part of the elastic sleeve 532, and the upper end of the support column 531 is connected to the assembly opening 5322. A radially penetrating assembly hole 5311 is provided on the support column 531, and a second telescopic column 535 capable of axially extending and retracting along the assembly hole 5311 is provided at the first end of the assembly hole 5311, and the outer end of the second telescopic column 535 abuts against the inner wall of the elastic sleeve 532, and a third telescopic column 536 capable of axially extending and retracting along the assembly hole 5311 is provided at the second end of the assembly hole 5311, and the outer end of the third telescopic column 536 abuts against the inner wall of the elastic sleeve 532, and a second elastic member 537 capable of keeping the second telescopic column 535 and the third telescopic column 536 extending out of the assembly hole 5311 and making the elastic sleeve 532 bounce up is also provided in the elastic sleeve 532. The second elastic member 537 is a spring, which passes through the assembly hole 5311 and respectively abuts against the inner wall of the elastic sleeve 532 corresponding to the second telescopic column 535 and the third telescopic column 536. The second sealing gasket 52 of this embodiment is provided with a through hole 521 for the elastic component 53 to pass through, and a first clamping ring 5211 is provided at the lower edge of the through hole 521. Correspondingly, a second clamping ring 5312 arranged at the upper end of the assembly cavity 5310 is provided on the outer wall of the upper part of the support column 531. In the assembled state, the lower part of the elastic sleeve 532 is located in the through hole 521, and the upper part of the elastic sleeve 532 extends out of the through hole 521 and abuts against the lower surface of the first sealing gasket 51, the lower edge of the elastic sleeve 532 abuts against the upper surface of the first clamping ring 5211, and the second clamping ring 5312 abuts against the lower surface of the first clamping ring 5211.When assembling the sealing assembly 53 of the present embodiment, the lower surface of the first sealing gasket 51 and the lower surface of the second sealing gasket 52 are first bonded together by glue, and then the end of the umbrella-shaped structure 5321 of the elastic sleeve 532 is pushed upward from the lower end of the through hole 521 of the second sealing gasket 52. During this process, the umbrella-shaped structure 5321 overcomes the elastic force of the second elastic member 537 to compress the second telescopic column 535 and the third telescopic column 536 inward to cause them to shrink until the umbrella-shaped structure 5321 is constrained on the first clamping ring 5211. The second elastic member 537 drives the second telescopic column 535 and the third telescopic column 536 to move outward to open the umbrella-shaped structure 5321, thereby generating a larger relative force application surface on the lower surface of the first sealing gasket 51 to avoid local deformation of the first sealing gasket 51.

[0055] When the cleaning machine of this embodiment is used, when the door body 2 needs to be opened, the motor 41 is operated, and the reel 3 is driven to rotate through the first gear 42, the gear belt 44 and the second gear 43, so that the door body 2 is wound around the outer periphery of the reel 3. During this process, the reel 3 will continue to become thicker, and the third gear 45 drives the motor 41 to move upward, so that the reel 3 is displaced upward while keeping rotating, so as to provide sufficient space for the winding of the door body 2; when the door body 2 needs to be closed, the motor 41 is operated in the reverse direction, and the reel 3 is driven to rotate through the first gear 42, the gear belt 44 and the second gear 43, so that the door body 2 gradually extends outward from the reel 3. During this process, the reel 3 will continue to become thinner, and the third gear 45 drives the motor 41 to move downward, so that the reel 3 is displaced downward while keeping rotating, and keeps in contact with the edge of the water tank body 1 to play a sealing role. When the door body 2 is fully extended to cover the top opening 101, the upper end of the umbrella-shaped structure 5321 of the elastic sleeve 532 pushes the first sealing gasket 51 upward to keep the door body 2 and the first sealing gasket 51 sealed, thereby improving the sealing effect.

[0056] Embodiment 2:

[0057] The difference between this embodiment and the first embodiment is that the door body 2 in this embodiment is not opened and closed by a winding method, but is a flat plate structure and is horizontally movable on the top opening 101 of the water tank body 1. A driving mechanism that can push the door body 2 to move back and forth can be provided on one side of the water tank body 1 to realize the opening and closing of the door body 2 relative to the top opening 101.

Claims

1. A washing machine, comprising a water tank body (1) and a door body (2), wherein the water tank body (1) is hollow inside to form a washing space (10), the washing space (10) having a top opening (101), and the door body (2) is arranged on the water tank body (1) to open or close the top opening (101), characterized in that: The door body (2) is arranged on the water tank body (1) so as to be able to open and close horizontally relative to the top opening (101); the edge of the top opening (101) is provided with a first sealing gasket (51) and a second sealing gasket (52) arranged in an upper and lower interval; the edge of the top opening (101) is also provided with an elastic component (53) constrained on the second sealing gasket (52) and enabling the first sealing gasket (51) to always maintain a tendency to be in close contact with the closed door body (2); The edge of the top opening (101) of the water tank body (1) is provided with a horizontally arranged support platform (12), the first sealing gasket (51) and the second sealing gasket (52) are both arranged on the support platform (12), and the lower surface of the first sealing gasket (51) is bonded to the upper surface of the second sealing gasket (52), the lower end of the elastic component (53) is supported on the support platform (12), and the upper end of the elastic component (53) passes through the second sealing gasket (52) and abuts against the lower surface of the first sealing gasket (51); The elastic component (53) comprises: The support column (531) is cylindrical and the lower part of the support column (531) is hollow to form an assembly cavity (5310); An elastic sleeve (532) is arranged at the upper end of the support column (531), and the elastic sleeve (532) is in an umbrella-shaped structure (5321) with a small upper end and a large lower end, and can shrink or bounce in the radial direction under external force; A first telescopic column (533), the upper end of which is inserted into the assembly cavity (5310) of the support column (531) so as to be movable up and down; A first elastic member (534) is sleeved on the outer circumference of the first telescopic column (533) and enables the first telescopic column (533) to always maintain a tendency to extend out of the assembly cavity (5310); In the assembled state, at least the upper end of the umbrella-shaped structure (5321) of the elastic sleeve (532) is in contact with the lower surface of the first sealing gasket (51); A vertically arranged assembly opening (5322) is provided on the inner wall of the middle portion of the elastic sleeve (532), and the upper end of the support column (531) is connected to the assembly opening (5322); The support column (531) is provided with a radially penetrating assembly hole (5311); a first end of the assembly hole (5311) is provided with a second telescopic column (535) that can be axially telescopically extended along the assembly hole (5311); the outer end of the second telescopic column (535) abuts against the inner wall of the elastic sleeve (532); a second end of the assembly hole (5311) is provided with a third telescopic column (536) that can be axially telescopically extended along the assembly hole (5311); the outer end of the third telescopic column (536) abuts against the inner wall of the elastic sleeve (532); and a second elastic member (537) is further provided in the elastic sleeve (532) that can keep the second telescopic column (535) and the third telescopic column (536) extending out of the assembly hole (5311) at all times and tend to make the elastic sleeve (532) bounce up.

2. The cleaning machine according to claim 1, characterized in that: The second elastic member (537) passes through the assembly hole (5311) and abuts against the inner walls of the elastic sleeves (532) corresponding to the second telescopic column (535) and the third telescopic column (536), respectively.

3. The cleaning machine according to claim 1, characterized in that: The second sealing gasket (52) is provided with a through hole (521) for the elastic component (53) to pass through, and the lower edge of the through hole (521) is provided with a first clamping ring (5211). Correspondingly, the outer wall of the upper part of the support column (531) is provided with a second clamping ring (5312) arranged at the upper end of the corresponding assembly cavity (5310). In the assembled state, the lower part of the elastic sleeve (532) is located in the through hole (521), the upper part of the elastic sleeve (532) extends out of the through hole (521) and abuts against the lower surface of the first sealing gasket (51), the lower edge of the elastic sleeve (532) abuts against the upper surface of the first clamping ring (5211), and the second clamping ring (5312) abuts against the lower surface of the first clamping ring (5211).

4. The cleaning machine according to any one of claims 1 to 3, characterized in that: The door body (2) is a flat plate structure and is arranged on the top opening (101) of the water tank body (1) in a horizontally movable manner.

5. The cleaning machine according to any one of claims 1 to 3, characterized in that: The door body (2) is a flexible door plate structure that can be rolled up or extended. A rotatable reel (3) is provided at the edge of the top opening (101) of the water tank body (1). One edge of the door body (2) is connected to the reel (3) along the axial direction of the reel. The water tank body (1) is also provided with a reeling mechanism (4) that can drive the reel (3) to rotate so as to roll the door body (2) on the reel (3) or extend it relative to the reel (3). When the door body (2) is rolled up on the reel (3), the top opening (101) is opened. When the door body (2) is fully extended relative to the reel (3), the top opening (101) is closed.

6. The cleaning machine according to claim 5, characterized in that: The winding mechanism (4) comprises A motor (41) is disposed on the outer wall of the water tank body (1) so as to be movable up and down, and an output shaft at a first end of the motor (41) extends laterally toward the outside of the water tank body (1); A first gear (42) is arranged on the output shaft of the motor (41); A second gear (43) is disposed at an end of the reel (3); A gear belt (44) drivingly connected between the first gear (42) and the second gear (43); A third gear (45) is disposed outside the first gear (42); a rack (46) vertically arranged on the water tank body (1) and located outside the motor (41), the rack (46) being meshedly connected with the third gear (45); and A connecting member (47), wherein a first end of the connecting member (47) is rotatably connected to an outer end surface of the second gear (43), and a second end of the connecting member (47) is rotatably connected to an outer end surface of the third gear (45).

7. The cleaning machine according to claim 6, characterized in that: A baffle (411) is provided at the second end of the motor (41), and the baffle (411) and the middle part of the connecting member (47) are connected to a connecting shaft (48) arranged along the axial direction of the first gear (42).

8. The cleaning machine according to claim 6, characterized in that: A vertically extending guide groove (49) is provided on the outer side wall of the water tank body (1); correspondingly, a connecting arm (412) extending toward the guide groove (49) is provided on the outer periphery of the motor (41); and a clamping foot (413) capable of being clamped in the guide groove (49) and slidably engaged with the guide groove (49) is provided at the end of the connecting arm (412).

9. The cleaning machine according to claim 6, characterized in that: The edge of the outer wall of the water tank body (1) is provided with a mounting plate (11) extending axially along the first gear (42), and the rack (46) is arranged on the mounting plate (11).

10. The cleaning machine according to claim 6, characterized in that: The interior of the reel (3) is hollow to form a receiving cavity (30), and the reel (3) is arranged along the length direction of the edge of the top opening (101) of the water tank body (1). A plug opening (31) arranged along the axial direction is opened on one side of the reel (3) corresponding to the corresponding edge of the door body (2), and the corresponding edge of the door body (2) extends into the receiving cavity (30) through the plug opening (31) and has a limit strip (21) that can prevent the door body (2) from separating from the reel (3).

11. The cleaning machine according to claim 6, characterized in that: The outer edge of the top opening (101) of the water tank body (1) is formed with a support (12) that can be relatively fitted with the door body (2), and the outer edge of the support (12) has a peripheral edge (13) arranged higher than the upper surface of the support (12), and the peripheral edge (13) is provided with a slide groove (131) arranged in a direction perpendicular to the scroll shaft (3). Correspondingly, a guide block (22) that can cooperate with the guide of the slide groove (131) is provided on the side wall of the door body (2) away from the scroll shaft (3).

12. The cleaning machine according to claim 11, characterized in that: A first position sensor (15) capable of detecting whether the door body (2) has completely closed the top opening (101) is disposed at one end of the water tank body (1), and the first position sensor (15) is arranged corresponding to the first end of the slide groove (131) away from the reel (3). A second position sensor (14) capable of detecting whether the door body (2) has completely opened the top opening (101) is disposed at the other end of the water tank body (1), and the second position sensor (14) is arranged corresponding to the second end of the slide groove (131) close to the reel (3).

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