Water tank with automatic cleaning function

Abstract

The invention relates to the technical field of water tank cleaning, in particular to a water tank with an automatic cleaning function, which comprises a main body assembly including a water tank, a handrail ladder arranged on the outer wall of the water tank, an access hole arranged at the end part of the water tank and a support seat at the end part; the cleaning assembly comprises supporting ribs and a cleaning pipe, and a spraying head is arranged at the end of the cleaning pipe and used for cleaning the interior of the cleaning pipe; a fixing plate and a lifting plate are further arranged in the water tank; reciprocating motion of a lifting plate is matched with dynamic adjustment of the size of an opening, circulation of negative-pressure liquid suction and high-pressure liquid spraying is formed, accumulated scales in complex areas such as the inner wall of the water tank, the supporting ribs and bottom gaps are accurately removed in combination with bidirectional scraping of the cleaning sleeve on the supporting ribs, and the limitation of traditional cleaning on blind areas is broken through; the drainage pipe forms negative pressure through a gradually-contracted-expanded channel to suck residual dirt, dirt crushing and flushing are enhanced by matching with turbulent flow generated by rotation of the flow guide ring and the flow guide plate, pipeline blockage is avoided, and efficient cleaning of the whole process of stripping, suspension and discharging is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water tank cleaning, in particular to a water tank with automatic cleaning function. BACKGROUND

[0002] After long-term use, the inner wall of the water tank is prone to depositing scale, algae, silt, organic matter and other dirt, which affects water quality and hygiene, reduces heat exchange efficiency, and blocks pipelines or breeds bacteria. To solve this problem, various water tanks with automatic cleaning function have appeared in the prior art.

[0003] The common automatic cleaning scheme relies on rotating spray arms or fixed nozzles to use water flow impact for cleaning. However, although water flow impact can loosen dirt, loosened dirt particles, especially those with high viscosity or weight, often cannot be effectively removed with the water flow and are likely to settle again in areas with slow water flow, such as the corners of the bottom of the water tank, near the drain, or when encountering internal obstacles such as support frames, sensor sleeves, and water level gauge floats, resulting in incomplete cleaning and the formation of stubborn stain accumulation areas.

[0004] There are often necessary protruding structures inside the water tank, such as temperature sensor mounting seats, water level sensor mounting seats, reinforcing ribs, support welding points, or recessed areas. The concentrated or parallel water flow beams generated by conventional rotating spray arms or fixed nozzles can only remove loose surface deposits, and have limited effect on tightly adhered hard layers. SUMMARY

[0005] In view of the problems existing in the prior art, the present application is proposed.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a water tank with automatic cleaning function, comprising a main assembly including a water tank, a handrail ladder arranged on the outer wall of the water tank, an access hole arranged at the end of the water tank, and a support seat arranged at the end; a cleaning assembly including a support rib arranged on the inner wall of the water tank and a cleaning pipe, the end of the cleaning pipe being provided with a spray head for cleaning the inside; The water tank is further provided with a fixed plate and a lifting plate, the lifting plate moves up and down at the end of the fixed plate, and when the lifting plate moves up and down during cleaning operation, the movement component arranged on the end face of the lifting plate changes the size of the water flow opening on the end face of the lifting plate, impinges and disturbs the water body below the lifting plate, and drives the impurities in the water to be removed with the water flow.

[0007] As a preferred scheme of the water tank with automatic cleaning function, the fixed plate end face is provided with a water flow port, the support rib is located at the water flow port axis and the support rib end penetrates the lifting plate, the lifting plate end face is provided with a cleaning sleeve which is sleeved on the support rib outer wall, and the cleaning sleeve scrapes off the impurities on the support rib outer wall when moving with the lifting plate.

[0008] As a preferred scheme of the water tank with automatic cleaning function, the water tank end is further provided with a servo motor and the servo motor axis is provided with a reciprocating screw rod, the reciprocating screw rod penetrates the lifting plate and the end extends to the fixed plate end, and the reciprocating screw rod drives the lifting plate to move in the water tank when rotating.

[0009] As a preferred scheme of the water tank with automatic cleaning function, the moving part comprises a mounting sleeve, the mounting sleeve end is provided with a limiting plate, and the limiting plate is screwed on the lifting plate end to fix the mounting sleeve.

[0010] As a preferred scheme of the water tank with automatic cleaning function, the limiting plate end face is provided with a threaded rod which is fixed on the fixed plate end face, the threaded rod outer wall is sleeved with a transmission gear which is installed on the limiting plate end face, and the transmission gear rotates on the threaded rod outside when the limiting plate moves up and down with the lifting plate.

[0011] As a preferred scheme of the water tank with automatic cleaning function, the mounting sleeve is provided with an installation cavity in the inside and the installation cavity is provided with a transmission ring in the inside, the transmission ring end face is provided with an output gear which is engaged with the transmission gear.

[0012] As a preferred scheme of the water tank with automatic cleaning function, the transmission ring end face is arrayed with a moving plate and the moving plate end face is provided with a stand column which extends to the sliding groove in the transmission ring end face and is slidingly matched with the sliding groove.

[0013] As a preferred scheme of the water tank with automatic cleaning function, the mounting sleeve inner wall is further provided with an inclined groove, and the stand column end away from the transmission ring extends to the inclined groove inside and is slidingly matched with the inclined groove.

[0014] As a preferred scheme of the water tank with automatic cleaning function, the water tank end is further provided with a drain pipe and the drain pipe inner wall is provided with a tapered channel and an expansion channel, the tapered channel is communicated with the expansion channel and is used for accelerating the water flow and forming negative pressure in the drain pipe to suck the residual dirt.

[0015] As a preferred scheme of the water tank with automatic cleaning function, the inside of the drain pipe is provided with a mounting seat, and the inside of the mounting seat is movably provided with a flow guide ring, and the end face of the flow guide ring is arrayed with a flow guide plate, and the flow guide plate is used to drive the flow guide ring to rotate in the inside of the drain pipe, and the rotation of the flow guide ring and the flow guide plate forms turbulent flow at the end of the drain pipe to flush the residual dirt.

[0016] The application has the following beneficial effects: the application realizes automatic cleaning of the water tank through mechanical structure, and the synergistic effect is remarkable. On the one hand, the reciprocating motion of the lifting plate is used to cooperate with dynamic adjustment of the opening size to form a "negative pressure liquid suction-high pressure liquid spraying" cycle, and the bidirectional scraping of the cleaning sleeve on the support rib is combined to accurately remove dirt in complex areas such as the inner wall, the support rib and the bottom gap of the water tank, thereby breaking through the limitation of traditional cleaning on blind areas. On the other hand, the drain pipe forms negative pressure suction of residual dirt through the tapered and expanded channel, and cooperates with the turbulent flow generated by the rotation of the flow guide ring and the flow guide plate to strengthen the crushing and flushing of the dirt, thereby avoiding pipe blockage and realizing efficient cleaning in the whole process of "stripping-suspending-discharging". BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0018] Figure 1 It is a whole structure schematic diagram of the water tank with automatic cleaning function. Figure 2 It is an internal structure schematic diagram of the water tank. Figure 3 It is an internal structure schematic diagram of the water tank. Figure 2 It is an enlarged schematic diagram of the structure at A. Figure 4 It is a structure schematic diagram of the support rib. Figure 5 It is a position relationship schematic diagram of the fixed plate and the lifting plate. Figure 6 It is a position relationship schematic diagram of the threaded rod and the mounting sleeve. Figure 7 It is an internal structure schematic diagram of the mounting sleeve. Figure 8 It is an explosion structure schematic diagram of the moving part.

[0019] The drawings show that: 100, main body assembly; 101, water tank; 102, handrail ladder; 103, access hole; 104, support seat; 200, cleaning assembly; 201, support rib; 202, cleaning pipe; 2021, shower head; 203, fixed plate; 2031, water flow port; 204, lifting plate; 2041, cleaning sleeve; 205, servo motor; 2051, reciprocating screw rod; 206, threaded rod; 207, mounting sleeve; 2071, limiting plate; 2072, mounting cavity; 2073, inclined chute; 208, transmission gear; 209, moving plate; 2091, stand; 210, transmission ring; 211, sliding groove; 212, output gear; 301, drain pipe; 302, tapered channel; 303, expanded channel; 304, mounting seat; 305, flow guide ring; 306, flow guide plate. DETAILED DESCRIPTION

[0020] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0021] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0022] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is separate or alternative to other embodiments. Embodiment 1

[0023] Reference Figures 1-2 For the first embodiment of the present application, the embodiment provides a water tank with automatic cleaning function.

[0024] Specifically, the main body assembly 100 includes a water tank 101, a handrail 102 arranged on the outer wall of the water tank 101, an access hole 103 arranged at the end of the water tank 101, and a support seat 104 arranged at the end; The cleaning assembly 200 includes a support rib 201 arranged on the inner wall of the water tank 101 and a cleaning pipe 202, and the cleaning pipe 202 is provided with a shower head 2021 at the end for cleaning the inside; The water tank 101 is further provided with a fixed plate 203 and a lifting plate 204. The lifting plate 204 is lifted and lowered at the end of the fixed plate 203. When the cleaning operation is performed, the movement component provided at the end surface of the lifting plate 204 changes the size of the water flow opening at the end surface of the lifting plate 204, and the water body below the lifting plate 204 is impacted and disturbed, so that the impurities in the water are discharged with the water flow.

[0025] After the cleaning operation is started, the spray head 2021 of the cleaning pipe 202 sprays water flow to the inner wall of the water tank 101, the surface of the support rib 201 and the upper area of the fixed plate 203, so as to dissolve and loosen the impurities such as silt and scale attached to the inner wall of the water tank 101 and the surface of the support rib 201, and make the impurities preliminarily suspended or separated from the matrix.

[0026] The lifting plate 204 below is along the inner wall of the water tank and starts to reciprocate by lifting and lowering. When the lifting plate 204 moves upward, the movement component at the end surface thereof acts, so that the opening through which the water flow passes is gradually enlarged.

[0027] With the rising of the lifting plate 204, the space volume between the lifting plate 204 and the lower plate is suddenly increased, forming a local negative pressure, forcibly inhaling the water body containing impurities above which is pretreated by spraying, including the water layer between the support ribs 201 and above the lifting plate 204, into the space below the lifting plate 204, so that the water body in the space below the lifting plate 204 moves violently, and the impurities deposited at the bottom move and mix in the water.

[0028] When the lifting plate 204 moves downward, the movement component moves, so that the water flow opening is gradually reduced, the space volume below the lifting plate 204 is suddenly reduced, and the water body is squeezed and accelerated, and is sprayed upward at high speed from the reduced opening, impacting the surface of the support rib 201 and the middle area between the lifting plate 204 and the fixed plate 203, stripping stubborn scale and pushing the suspended impurities to converge in the drainage area.

[0029] Through the continuous lifting and lowering movement cycle of the lifting plate 204, combined with the continuous water supplementing and flushing action of the spray head 2021, the impurities in the water tank are continuously "stripped, suspended and migrated", so that secondary deposition is avoided.

[0030] Then, the drainage program of the water tank 101 is started, and the disturbed water flow containing impurities is discharged from the water outlet with the drainage, and the cleaning operation is completed. Embodiment 2

[0031] Reference Figures 4-8 This embodiment is based on the previous embodiment.

[0032] Specifically, the fixed plate 203 is provided with a water flow port 2031 at the end face, the support rib 201 is located at the axis of the water flow port 2031 and the end of the support rib 201 penetrates the lifting plate 204, the lifting plate 204 is provided with a cleaning sleeve 2041 at the end face, the cleaning sleeve 2041 is sleeved on the outer wall of the support rib 201, and the cleaning sleeve 2041 scrapes off the impurities on the outer wall of the support rib 201 when moving with the lifting plate 204.

[0033] The support rib 201 is vertically fixed in the water tank 101, penetrates the axis of the water flow port 2031 of the fixed plate 203, and the end thereof extends downward and penetrates the lifting plate 204, thereby forming a guide column of the lifting plate 204.

[0034] The lifting plate 204 is provided with the cleaning sleeve 2041 at the end face, the cleaning sleeve 2041 is tightly sleeved on the outer wall of the support rib 201, a small gap is reserved between the two, the impurities on the surface of the support rib 201 are removed through the cleaning sleeve 2041, and the cleaning sleeve 2041 can freely slide along the surface of the support rib 201 and does not fall off.

[0035] When the lifting plate 204 is in the low position, the distance between the lifting plate 204 and the fixed plate 203 is the largest, the cleaning sleeve 2041 is located at the bottom end of the support rib 201, the bottom position of the cleaning sleeve 2041 is used to clean the deposited hard scale on the bottom outer surface of the support rib 201 caused by the vortex dead zone, so that the scale is broken and rolled into the water.

[0036] Preferably, the water tank 101 is further provided with a servo motor 205 at the end, and the servo motor 205 is provided with a reciprocating screw 2051 at the axis, the reciprocating screw 2051 penetrates the lifting plate 204 and extends to the end of the fixed plate 203, and the reciprocating screw 2051 drives the lifting plate 204 to move in the water tank 101 when rotating.

[0037] The servo motor 205 is started, the output shaft drives the reciprocating screw 2051 to rotate, the threads of the reciprocating screw 2051 are matched with the screw holes of the lifting plate 204, and the lifting plate 204 moves along the screw axis in a reciprocating straight line when the reciprocating screw 2051 rotates.

[0038] When the lifting plate 204 rises, the cleaning sleeve 2041 moves upward along the outer wall of the support rib 201 with the lifting plate, scrapes off the impurities and scale bodies on the surface of the support rib 201, the distance between the lifting plate 204 and the fixed plate 203 increases, the volume around the water flow port 2031 expands, a local negative pressure is formed, and the impurities in the water above are sucked into the space below through the spray head 2021.

[0039] When the lifting plate 204 descends, the cleaning sleeve 2041 moves downward along the outer wall of the support rib 201 with the lifting plate 204, and the remaining impurities are scraped off again, and the scraped impurities are collected near the drain at the bottom.

[0040] The moving component comprises a mounting sleeve 207, the end of the mounting sleeve 207 is provided with a limiting plate 2071, the limiting plate 2071 is screwed to the end of the lifting plate 204 to fix the mounting sleeve 207.

[0041] The end surface of the limiting plate 2071 is provided with a threaded rod 206, the end of the threaded rod 206 is fixed to the end surface of the fixed plate 203, the outer wall of the threaded rod 206 is sleeved with a transmission gear 208, and the transmission gear 208 is installed on the end surface of the limiting plate 2071; when the limiting plate 2071 moves up and down with the lifting plate 204, the transmission gear 208 rotates outside the threaded rod 206.

[0042] The lifting plate 204 moves upwards to drive the limiting plate 2071 to move upwards synchronously, the transmission gear 208 on the end surface of the limiting plate 2071 moves upwards synchronously, and the transmission gear 208 is installed on the upper surface of the limiting plate 2071 and cannot rotate, because the threaded rod 206 is fixed and the outer wall is provided with a spiral thread which is engaged with the inner ring of the transmission gear 208, the transmission gear 208 rotates unidirectionally around the threaded rod 206 during the upward movement.

[0043] The lifting plate 204 moves downwards to drive the limiting plate 2071 to move downwards synchronously, the transmission gear 208 moves downwards synchronously, and the spiral thread of the threaded rod 206 is engaged with the transmission gear 208 again, the transmission gear 208 rotates reversely around the threaded rod 206 during the downward movement.

[0044] The inside of the mounting sleeve 207 is provided with a mounting cavity 2072, and the inside of the mounting cavity 2072 is provided with a transmission ring 210, the end surface of the transmission ring 210 is provided with an output gear 212, and the output gear 212 is engaged with the transmission gear 208.

[0045] When the lifting plate 204 drives the limiting plate 2071 to move up and down, the transmission gear 208 moves up and down along the threaded rod 206 and rotates, because the output gear 212 is engaged with the transmission gear 208, the rotation of the transmission gear 208 directly drives the output gear 212 to rotate synchronously.

[0046] The end surface of the transmission ring 210 is arrayed with a moving plate 209, and the end surface of the moving plate 209 is provided with a stand column 2091, the end of the stand column 2091 extends into the sliding groove 211 formed in the end surface of the transmission ring 210 and is in sliding fit with the sliding groove 211.

[0047] The inner wall of the mounting sleeve 207 is also provided with an inclined groove 2073, and the end of the stand column 2091 away from the transmission ring 210 extends into the inclined groove 2073 and is in sliding fit with the inclined groove 2073.

[0048] When the transmission ring 210 rotates with the output gear 212, the chute 211 on its end surface rotates synchronously, pushing the column 2091 embedded in the chute 211. Because the column 2091 is also embedded in the inclined groove 2073 on the inner wall of the mounting sleeve 207, the movement of the column 2091 is constrained by the circumferential thrust of the chute 211 and the radial guidance of the inclined groove 2073.

[0049] Through the movement of the column 2091, the movable plate 209 is driven to move synchronously in the radial direction. When the lifting plate 204 rises, the gap between adjacent movable plates 209 increases, so that the water flow opening on the end face of the lifting plate 204 increases, and the opening formed by the movable plate 209 expands from the initial state to the maximum state.

[0050] When the lifting plate 204 descends, the transmission ring 210 pushes the column 2091 to slide inward along the inclined direction of the inclined groove 2073 through the slide groove 211, and the column 2091 drives the movable plate 209 to move inward synchronously in the radial direction. The gap between adjacent movable plates 209 is reduced, and the water flow opening shrinks from the maximum state to the initial state.

[0051] The volume compression caused by the shrinking of the opening and the descending of the lifting plate 204 causes the water below to be squeezed and accelerated, and then ejected from the shrinking opening at high speed, impacting the bottom dirt and pushing the impurities to flow.

[0052] In summary, when in use, the spray head 2021 flushes the outer surface of the support rib 201 and the inner wall of the water tank 101, and the sprayed water carries impurities and enters the bottom from the water flow outlet 2031 on the surface of the fixed plate 203. The reciprocating screw 2051 is fixed below the fixed plate 203, and the other end is driven by the servo motor 205 to rotate inside, and the lifting plate 204 is driven to reciprocate along the axis of the screw through threaded cooperation.

[0053] The cleaning sleeve 2041 moves up synchronously with the lifting plate, slides along the outer wall of the support rib 201, and scrapes off impurities and scale attached to the surface, especially the scale in the middle and upper part of the support rib 201; the lifting plate 204 moves up, driving the limit plate 2071 to move up synchronously, and the transmission gear 208 moves up along the fixed threaded rod 206 and rotates unidirectionally due to the engagement of the spiral teeth, driving the transmission ring 210 to rotate through the output gear 212; the slide groove 211 of the transmission ring 210 pushes the column 2091 to slide outward along the inclined groove 2073 of the installation sleeve 207, driving the movable plate 209 to expand radially outward, and the water flow opening expands from the initial state to the maximum; the distance between the lifting plate 204 and the fixed plate 203 increases, forming a local negative pressure, sucking in the impurity-containing water pre-treated by the sprinkler head 221 above, and drawing the scraped impurities into the space below the lifting plate 204.

[0054] The reciprocating screw 2051 rotates continuously, driving the lifting plate 204 to automatically move downward in the reverse direction. The cleaning sleeve 2041 moves downward synchronously with the lifting plate, sliding in the reverse direction along the outer wall of the support rib 201, scraping off residual impurities for a second time and collecting the scraped materials near the water flow outlet 2031, especially strengthening the crushing of hard scale in the eddy current blind area at the bottom of the support rib 201. The lifting plate 204 moves downward, driving the limit plate 2071 to move downward synchronously, and the transmission gear 208 moves downward along the threaded rod 206 and rotates in the opposite direction, driving the transmission ring 210 to rotate in the opposite direction through the output gear 212; the column 2091 slides inward along the inclined groove 2073, and the movable plate 209 shrinks radially, and the water flow opening shrinks from the maximum state to the initial state; the distance between the lifting plate 204 and the fixed plate 203 increases, and the volume of the space below is compressed. The water body is squeezed and accelerated, and is ejected from the contracted opening at high speed. The water flow carries impurities and rushes out at high speed, pushing the suspended impurities to converge in the drainage area.

[0055] The cleaning sleeve 2041 slides in both directions with the lifting plate 204, accurately scraping off the dirt on the entire section of the support rib 201, breaking through the coverage limitations of traditional cleaning on complex areas of the support rib 201; at the same time, the water flow opening automatically "expands → shrinks" with the lifting action, and forms a "negative pressure liquid suction-high-pressure liquid spraying" cycle with the volume change, which not only absorbs suspended impurities, but also peels off stubborn dirt through high-speed spraying, avoiding secondary deposition of impurities. Example 3

[0056] Reference Figures 1-3 , which is the third embodiment of the present invention, is implemented based on the previous embodiment.

[0057] Specifically, a drain pipe 301 is also provided at the end of the water tank 101 and a tapered channel 302 and an expanded channel 303 are provided on the inner wall of the drain pipe 301. The tapered channel 302 is connected to the expanded channel 303 and is used to accelerate the water flow and form a negative pressure inside the drain pipe 301 to suck out residual dirt.

[0058] A mounting seat 304 is provided inside the drain pipe 301, and a guide ring 305 is movably provided inside the mounting seat 304. A guide plate 306 is provided in an array on the end face of the guide ring 305. The guide plate 306 is used to drive the guide ring 305 to rotate inside the drain pipe 301. Through the rotation of the guide ring 305 and the guide plate 306, turbulence is formed at the end of the drain pipe 301 to flush out residual dirt.

[0059] When the water tank 101 is draining, the water containing impurities enters the drain pipe 301 and first flows through the tapered channel 302. The cross-sectional area of ​​the channel gradually decreases along the direction of the water flow. The water flow is compressed due to the contraction of the channel, and the flow rate increases along the way.

[0060] The accelerated water flow enters the expansion channel 303, and the water flow speed is reduced due to the expansion of the channel. According to the principle of fluid mechanics, the reduction of the flow speed forms a local negative pressure in the expansion channel 303, and the pressure is lower than the bottom area of the water tank. The negative pressure sucks the residual dirt, such as the dirt accumulated in the gap between the support ribs 201 and the sedimentary impurities under the lifting plate 204, at the bottom of the water tank 101 through the inlet of the drain pipe 301 and sucks them into the drain pipe 301.

[0061] When the drain work is performed, the high-speed water flow impacts the flow guide plate 306 inside the drain pipe 301, and the impact force of the water flow on the flow guide plate 306 generates a circumferential torque, which drives the flow guide ring 305 to rotate around the axis in the mounting seat 304, and the rotation speed changes with the water flow speed.

[0062] When the flow guide ring 305 rotates, the array of flow guide plates 306 continuously cuts and disturbs the water flow, and a turbulent flow is formed near the outlet section at the end of the drain pipe 301. The turbulent flow enhances the scouring force on the dirt attached to the inner wall of the drain pipe 301, and at the same time, breaks and suspends the blocky and flocculent residual dirt sucked into the pipe, so as to avoid the deposition and blockage of the pipe.

[0063] The residual dirt sucked by the negative pressure is mixed with the water flow and kept in a suspended state under the action of the turbulent flow, and is continuously discharged through the outlet of the drain pipe 301 with the water flow, thereby completing the cleaning of the residual dirt at the bottom of the water tank 101 and in the drain pipe 301.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A water tank with automatic cleaning function, characterized by: include: A main body assembly (100) comprises a water tank (101), a handrail (102) provided on the outer wall of the water tank (101), an inspection port (103) provided at the end of the water tank (101), and a support base (104) provided at the end; A cleaning assembly (200) comprises support ribs (201) and a cleaning pipe (202) provided on the inner wall of the water tank (101); a spray head (2021) is provided at the end of the cleaning pipe (202) for cleaning the interior; A fixed plate (203) and a lifting plate (204) are further provided inside the water tank (101). The lifting plate (204) performs lifting motion at the end of the fixed plate (203). During cleaning operations, when the lifting plate (204) is lifted, a moving component provided on the end surface of the lifting plate (204) changes the size of the water flow opening on the end surface of the lifting plate (204), impacting and disturbing the water below the lifting plate (204), thereby driving impurities in the water to be discharged along with the water flow.

2. The water tank with automatic cleaning function according to claim 1, characterized in that: The end surface of the fixed plate (203) is provided with a water flow outlet (2031), the support rib (201) is located at the axis of the water flow outlet (2031), and the end of the support rib (201) passes through the lifting plate (204), and the end surface of the lifting plate (204) is provided with a cleaning sleeve (2041) sleeved on the outer wall of the support rib (201), and the cleaning sleeve (2041) scrapes impurities on the outer wall of the support rib (201) when the lifting plate (204) moves.

3. The water tank with automatic cleaning function according to claim 2, characterized in that: A servo motor (205) is further provided at the end of the water tank (101), and a reciprocating screw (2051) is provided at the axis of the servo motor (205). The reciprocating screw (2051) passes through the lifting plate (204) and its end extends to the end of the fixed plate (203). When the reciprocating screw (2051) rotates, it drives the lifting plate (204) to move inside the water tank (101).

4. The water tank with automatic cleaning function according to claim 3, characterized in that: The moving component comprises a mounting sleeve (207), a limiting plate (2071) is provided at the end of the mounting sleeve (207), and the limiting plate (2071) is screwed to the end of the lifting plate (204) to fix the mounting sleeve (207).

5. The water tank with automatic cleaning function according to claim 4, characterized in that: A threaded rod (206) is provided through the end face of the limiting plate (2071), and the end of the threaded rod (206) is fixed to the end face of the fixing plate (203). A transmission gear (208) is sleeved on the outer wall of the threaded rod (206), and the transmission gear (208) is installed on the end face of the limiting plate (2071). When the limiting plate (2071) moves up and down with the lifting plate (204), the transmission gear (208) rotates outside the threaded rod (206).

6. The water tank with automatic cleaning function according to claim 5, characterized in that: An installation cavity (2072) is provided inside the installation sleeve (207), and a transmission ring (210) is provided inside the installation cavity (2072). An output gear (212) is provided on the end surface of the transmission ring (210), and the output gear (212) is meshed with the transmission gear (208).

7. The water tank with automatic cleaning function according to claim 6, characterized in that: The transmission ring (210) end face array is provided with a moving plate (209), and the end face of the moving plate (209) is provided with a column (2091), and the end of the column (2091) extends into the interior of the sliding groove (211) provided on the end face of the transmission ring (210) and slides with it.

8. The water tank with automatic cleaning function according to claim 7, characterized in that: An inner wall of the mounting sleeve (207) is further provided with an inclined groove (2073), and the column (2091) extends from one end of the transmission ring (210) to the inside of the inclined groove (2073) and is in sliding engagement therewith.

9. The water tank with automatic cleaning function according to claim 8, characterized in that: A drain pipe (301) is also provided at the end of the water tank (101), and a tapered channel (302) and an expanded channel (303) are provided on the inner wall of the drain pipe (301). The tapered channel (302) is connected to the expanded channel (303) and is used to accelerate the water flow and form a negative pressure inside the drain pipe (301) to suck out residual dirt.

10. The water tank with automatic cleaning function according to claim 9, characterized in that: A mounting seat (304) is provided inside the drainage pipe (301), and a guide ring (305) is movably provided inside the mounting seat (304). A guide plate (306) is provided in an array on the end face of the guide ring (305). The guide plate (306) is used to drive the guide ring (305) to rotate inside the drainage pipe (301). The rotation of the guide ring (305) and the guide plate (306) forms a turbulent flow at the end of the drainage pipe (301) to flush out residual dirt.

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