Sewage tank and cleaning equipment

Abstract

The invention discloses a sewage tank and cleaning equipment, the sewage tank comprises a tank body, a separation device, a driving assembly and a water inlet piece, the tank body comprises a water storage part and a mounting part, the separation device comprises a separation piece, the separation piece comprises a separation outer shell, a separation inner shell and a gas outlet pipeline, and the separation inner shell is fixed outside the gas outlet pipeline through a connecting part; the separation outer shell is fixedly connected to the air outlet pipeline and located on the outer side of the separation inner shell. The water inlet piece comprises a water inlet pipe and an inserting part formed at the tail end of the water inlet pipe, an upper conveying channel is formed between the inserting part and the separation inner shell, and a lower conveying channel is formed between the inserting part and the separation outer shell; an upper guide part is formed in the upper conveying channel, and a lower guide part is formed in the lower conveying channel; the separating device separates sucked sewage fluid for at least one time, bacteria breeding is avoided, in addition, the separating device is beneficial for preventing sewage in the water storage tank from flowing back when the cleaning equipment is in a large-angle inclined or flat working state, and safety is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of household appliances, and more specifically, relates to a sewage tank and a cleaning device. Background Art

[0002] The floor washer cleans the floor through a rotating roller brush at the brush head part. Meanwhile, the clean water flowing out of the clean water tank cleans the roller brush, and the generated sewage enters the sewage tank along the pipeline under the negative pressure provided by the blower. Specifically, the floor washer provides suction force to mix the water stains, stains and air flow and then input them into the sewage tank.

[0003] The existing sewage tank has poor water vapor separation effect. The water vapor in the sewage tank accumulates for a long time, which is likely to cause the growth of bacteria and the loss of the service life of internal components. In addition, the posture of the floor washer during operation changes with the relative position of the user and the cleaning area (upright, tilted and lying flat), which brings new challenges to the floor washer, that is, the contradiction between the body posture in the low area and the sewage water level posture.

[0004] In the general design of the floor washer, the blower is directly above the sewage tank. When lying down for use, there is a possibility that the sewage will flow into the blower, resulting in a major safety hazard that the motor gets water and the product fails. Summary of the Invention

[0005] The purpose of the present invention is to provide a sewage tank and a cleaning device to solve the problems in the prior art that the sewage tank in the existing cleaning device has poor water vapor separation effect, and the accumulation of water vapor leads to the growth of bacteria; and when the floor washer is in different use states, the sewage may flow out of the water tank to the position of the blower, affecting the normal operation of the blower and other problems.

[0006] To achieve the above-mentioned invention purpose, the present invention adopts the following technical solutions: In one aspect, the present invention provides a sewage tank, which includes: A box body, which includes a water storage part and an installation part. A water storage cavity is formed in the water storage part, and an installation cavity is formed in the installation part; A separation device, which is arranged in the installation cavity. The separation device is rotatably connected in the installation cavity. The separation device includes a separation part. The separation part includes a separation outer shell with an opening at the lower side, a separation inner shell with an opening at the upper side, and an air outlet pipe with openings at both ends. The separation inner shell is fixed outside the air outlet pipe through a connecting part, and the separation outer shell is fixedly connected to the air outlet pipe and is located outside the separation inner shell; A driving component, which is connected to the separation device and is used to drive the separation device to rotate in the installation cavity; The water inlet part includes a water inlet pipe and a plugging part formed at the end of the water inlet pipe. The plugging part extends between the separation inner shell and the separation outer shell, and the upper edge of the plugging part is lower than the upper edge of the separation inner shell. An upper conveying channel is formed between the plugging part and the separation inner shell, and a lower conveying channel is formed between the plugging part and the separation outer shell. An upper guiding part is formed in the upper conveying channel, and a lower guiding part is formed in the lower conveying channel.

[0007] In some embodiments of the present application, a water return part extending into the water storage cavity is formed in the installation cavity. A water return channel is formed between the water inlet part and the water return part. Two ends of the water return channel are respectively communicated with the water storage cavity and the lower conveying channel.

[0008] In some embodiments of the present application, a one-way valve group is formed in the water return channel for realizing the one-way conveying of fluid from the lower conveying channel to the water storage cavity.

[0009] In some embodiments of the present application, the one-way valve group includes a plurality of partition parts arranged at intervals along the conveying direction of the water flow. Each partition part includes at least two valve pieces. One side of each valve piece is formed on the inner wall of the water return part. Bendings towards the direction of the water storage cavity are respectively formed at two ends of each valve piece. A water passing part is formed between adjacent valve pieces, and the water passing parts on adjacent partition parts are arranged staggeredly.

[0010] In some embodiments of the present application, an air outlet part extending into the installation cavity is formed at the top of the box body. The air outlet pipe is rotatably connected to the air outlet part. An inlet installation hole is formed at the bottom of the box body, and the water inlet part is connected to the water storage cavity from the inlet installation hole.

[0011] In some embodiments of the present application, a bearing part is arranged between the inner wall of the installation cavity and the separation device. An inner installation part is formed on the inner wall of the installation cavity, and an outer installation part is formed on the outer wall of the separation outer shell. The bearing part is connected between the inner installation part and the outer installation part.

[0012] In some embodiments of the present application, the driving assembly includes a driving motor, a driving gear and a driven gear. The driving motor is fixed in the installation cavity. The driving gear is connected to the output end of the driving motor. The driven gear is sleeved on the air outlet pipe. The air outlet pipe is fixedly connected to the separation outer shell. Under the action of the driving assembly, the air outlet pipe, the separation inner shell and the separation outer shell rotate synchronously.

[0013] In some embodiments of the present application, a guiding tip extending downward is formed at the bottom of the separation inner shell for reducing the resistance during the fluid conveying process.

[0014] In some embodiments of the present application, the separation device further includes at least one auxiliary separation member connected between the air outlet pipe and the air outlet portion; The auxiliary separation member is rotatably connected within the separation housing and includes an intermediate housing, an auxiliary inner housing, and an auxiliary air outlet pipe; The intermediate housing is connected to the air outlet pipe or the auxiliary air outlet pipe of the upstream auxiliary separation member. The auxiliary inner housing is fixed to the outside of the corresponding auxiliary air outlet pipe through an auxiliary connection portion. The auxiliary air outlet pipe is connected to the air outlet portion or the intermediate housing of the upstream auxiliary separation member. An upper auxiliary guiding portion is provided between the auxiliary inner housing and the intermediate housing, and a lower auxiliary guiding portion is formed between the intermediate housing and the separation housing. Under the action of the driving assembly, the auxiliary separation member rotates synchronously with the air outlet pipe, the separation inner housing, and the separation housing.

[0015] In another aspect, the present invention also proposes a cleaning device, including a cleaning main body and the sewage tank involved in any of the above.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are: For the sewage tank and the cleaning device involved in the present application, the sewage tank is provided with a separation device, which can separate the sucked sewage fluid at least once, separate the gas and liquid therein, discharge the gas from the sewage tank, and store the liquid in the water storage cavity, avoiding a large amount of sewage liquid mixed in the gas output after the fan starts, resulting in the growth of bacteria, and being beneficial to avoiding equipment failures.

[0017] In addition, a downward guiding power is continuously provided in the lower conveying channel where the separation member communicates with the water storage tank, which is beneficial to avoiding the backflow of the sewage in the water storage tank and affecting the operation of the driving assembly when the cleaning device is in a large-angle inclined or flat working state.

[0018] In addition, a one-way valve group is installed in the water return portion between the water storage cavity and the lower conveying channel. The one-way valve group is used to achieve the one-way conveyance of the fluid from the lower conveying channel to the water storage cavity, avoiding the backflow of sewage when the cleaning device is in a flat use state.

[0019] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following-described drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is a schematic structural diagram of an embodiment of the cleaning device proposed by the present invention; Figure 2 is one of the schematic external structural diagrams of the sewage tank; Figure 3 is the second schematic external structural diagram of the sewage tank; Figure 4 is a schematic diagram of the sewage tank disassembled; Figure 5 is the first schematic sectional structural diagram of the sewage tank; Figure 6 is the second schematic sectional structural diagram of the sewage tank; Figure 7 is a sectional view of the box body; Figure 8 is a schematic installation sectional view of the one-way valve group in the water return part; Figure 9 is a schematic external diagram of the separation device; Figure 10 is a schematic diagram of the separation device and the water inlet part disassembled; Figure 11 is a schematic sectional view of the separation device and the water inlet part disassembled; Figure 12 is a schematic sectional view of the separation device and the water inlet part connected; Figure 13 is a schematic sectional view of the separation device; Figure 14 is the first schematic diagram of the fluid flow in the sewage tank; Figure 15 is the second schematic diagram of the fluid flow in the sewage tank; Figure 16 is a schematic diagram of the position of the valve body in the box body; Figure 17 is the first schematic diagram of the one-way valve channel structure; Figure 18 is the second schematic diagram of the one-way valve channel structure; In the figure, 10. Cleaning main body; 11. Cleaning roller; 20. Sewage tank; 100. Box body; 101. Water return channel; 110. Installation part; 111. Air outlet part; 112. Outer installation part; 1121. First convex part; 1122. First installation position; 113. Water return part; 120. Water storage part; 121. Installation surface; 122. Water supply through hole; 130. One-way valve group; 131. Valve piece; 132. Water passing part; 133. Valve body; 1331. First end face; 1332. Second end face; 134. Check valve passage; 1341. Main passage; 1342. Branch passage; 200. Separation device; 201. Lower conveying passage; 202. Upper conveying passage; 203. Separation inner cavity; 204. Output passage; 210. Separation inner shell; 211. Lower guiding part; 220. Separation outer shell; 221. Upper guiding part; 222. Guiding tip; 230. Air outlet pipe; 231. Connection part; 240. Inner installation part; 241. Second convex part; 242. Second installation position; 300. Driving assembly; 310. Driving gear; 320. Driven gear; 400. Bearing part; 500. Water inlet part; 510. Water inlet pipe; 511. Water inlet passage; 520. Insertion part; 600. Auxiliary separation part; 601. Auxiliary lower passage; 602. Auxiliary upper passage; 603. Auxiliary inner cavity; 604. Auxiliary output passage; 610. Intermediate housing; 611. Lower auxiliary guiding part; 620. Auxiliary inner shell; 621. Upper auxiliary guiding part; 630. Auxiliary air outlet pipe; 631. Auxiliary connection part. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0023] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0025] In the description of the present application, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" should be construed broadly. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0027] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0028] Reference Figure 1 , the present application provides a sewage tank 20 and a cleaning device. The cleaning device is mainly a floor washer. The cleaning device includes a cleaning main body 10, and a cleaning host, a cleaning roller 11 and traveling wheels are arranged below the cleaning main body 10.

[0029] An installation slot is provided on the cleaning device. The sewage tank 20 is integrally cylindrical, and an installation surface 121 is formed on its side wall. In the installed state, the installation surface 121 is in contact connection within the installation slot.

[0030] The cleaning main body 10 cleans the ground. During the cleaning process, the clean water in the clean water tank is conveyed to the cleaning roller 11. At the same time, the fan in the cleaning device works to adsorb the sewage on the cleaning roller 11 and the nearby ground into the sewage tank 20.

[0031] This application can separate the water vapor from the fluid input into the sewage tank 20, separating the gas from the sewage, avoiding an excessive proportion of water vapor in the airflow of the sewage tank 20 from entering the fan and other components, causing abnormal operation of the cleaning device. At the same time, the water vapor separation is also beneficial for reducing the growth of bacteria, reducing the cleaning difficulty, and increasing the service life of the device.

[0032] Specifically, the sewage tank 20 includes a box body 100, a separation device 200, a driving component 300, and a water inlet component 500. The box body 100 is a shell structure, including a water storage part 120 and an installation part 110. The size of the installation part 110 is smaller than that of the water storage part 120.

[0033] Reference Figures 2 - 4 , a water storage cavity is formed in the water storage part 120 for storing sewage, and an installation cavity is formed in the installation part 110 for installing the separation device 200 and conveying the separated gas out.

[0034] An air outlet part 111 extending into the installation cavity is formed at the top of the box body 100. The separating part can be directly connected to the air outlet part 111 or indirectly connected through other structures. The air outlet part 111 is connected to the fan, and the fan works to extract the airflow from the separation device 200.

[0035] A water supply through hole 122 is provided at the bottom of the water storage part 120. The water inlet component 500 extends from the water supply through hole 122 to the outside of the water storage part 120 for conveying the sewage fluid.

[0036] Reference Figure 5 、 Figures 10 - 12 , when the separating part is directly connected to the air outlet part 111, the air outlet pipe 230 is rotatably connected to the air outlet part 111, and the gas separated by the separation device is discharged through the air outlet pipe 230 and the air outlet part 111.

[0037] The separation device 200 is rotatably connected in the installation cavity and includes a separating part. The separating part sequentially includes a separation outer shell 220, a separation inner shell 210, and an air outlet pipe 230 from outside to inside. The lower side of the separation outer shell 220 is an open structure, the upper side of the separation inner shell 210 is an open structure, and both ends of the air outlet pipe 230 are open structures.

[0038] The separation inner shell 210 is fixed outside the air outlet pipe 230 through a connecting part 231, and the separation outer shell 220 is fixedly connected to the air outlet pipe 230 and located outside the separation inner shell 210.

[0039] Specifically, the connecting portion 231 includes a plurality of connecting rods extending outward along the circumferential direction of the air outlet pipe 230. The other ends of the connecting rods are fixed on the inner wall of the separation inner shell 210 to fix the separation inner shell 210 and the air outlet pipe 230.

[0040] An inlet mounting hole is formed at the bottom of the box body 100, and a water supply pipe is connected to the water storage cavity through the inlet mounting hole.

[0041] The water inlet member 500 includes a water inlet pipe 510 and a plugging portion 520 formed at the end of the water inlet pipe 510. The size of the plugging portion 520 is larger than that of the water inlet pipe 510. In the installed state, the plugging portion 520 extends between the separation inner shell 210 and the separation outer shell 220, and the upper edge of the plugging portion 520 is lower than the upper edge of the separation inner shell 210.

[0042] An upper conveying channel 202 is formed between the plugging portion 520 and the separation inner shell 210, and a lower conveying channel 201 is formed between the plugging portion 520 and the separation outer shell 220; an upper guiding portion 221 is formed in the upper conveying channel 202, and a lower guiding portion 211 is formed in the lower conveying channel 201.

[0043] Specifically, the upper guiding portion 221 is located on the outer wall of the separation inner shell 210, and the lower guiding portion 211 is arranged on the inner wall of the separation outer shell 220.

[0044] The plugging portion 520 is plugged between the upper guiding portion 221 and the lower guiding portion 211.

[0045] A water inlet passage is formed in the water inlet pipe 510. The water inlet passage is communicated with the upper conveying channel 202, and the lower conveying channel 201 is communicated with the water storage cavity.

[0046] Specific reference Figure 11 、 Figure 12 The upper guiding portion 221 includes a plurality of driving fan blades arranged annularly along the upper conveying channel 202. A tapered upper guiding passage is formed between adjacent driving fan blades in the upper conveying channel 202 in the upward direction from bottom to top, for upwardly conveying the sewage fluid in the water inlet channel 511 into the separation device 200.

[0047] Similarly, the lower guiding portion 211 includes a plurality of driving fan blades extending annularly in the lower conveying channel 201. A tapered lower guiding passage is formed between adjacent driving fan blades in the lower conveying channel 201 in the downward direction from top to bottom, for conveying the separated sewage into the water storage tank.

[0048] Refer to again Figure 5, in some embodiments of the present application, a return water part 113 extending into the water storage cavity is formed at the bottom of the installation cavity. A return water channel 101 is formed between the water inlet part 500 and the return water part 113. Both ends of the return water channel 101 are communicated with the water storage cavity and the lower conveying channel 201 respectively.

[0049] The separated sewage is conveyed to the water storage cavity for storage after passing through the lower conveying channel 201 and the return water channel 101.

[0050] A gap is formed between the lower part of the separation housing and the return water part 113 to avoid interference with the return water part 113 during the rotation of the separation housing.

[0051] Reference Figures 4 - 7 、 Figure 9 , in some embodiments of the present application, in order to improve the stability of the separation device 200 during rotation and further prevent sewage from flowing back to the fan from the periphery of the separation device 200, a bearing part 400 is arranged between the inner wall of the installation cavity and the separation device 200. The number of bearing parts 400 is at least one along the height direction of the separation device 200. An inner installation part 240 is formed on the inner wall of the installation cavity, and an outer installation part 112 is formed on the inner wall of the separation housing 220. The bearing part 400 is connected between the inner installation part 240 and the outer installation part 112.

[0052] Specifically, the setting positions of the inner installation part 240 and the outer installation part 112 correspond to each bearing part 400 one by one. The outer installation part 112 includes two first convex parts 1121 arranged oppositely up and down. A first installation position 1122 adapted to the height of the bearing part 400 is formed between the first convex parts 1121, and the inner side of the bearing part 400 is installed in the first installation position 1122.

[0053] The inner installation part 240 includes two second convex parts 241 arranged oppositely up and down. A second installation position 242 adapted to the height of the bearing part 400 is formed between the two second convex parts 241, and the outer side of the bearing part 400 is installed in the second installation position 242.

[0054] A guiding tip 222 extending downward is formed at the bottom of the separation inner shell 210. When the sewage fluid is input from the water inlet channel 511, under the action of the guiding tip 222, the resistance during fluid conveyance can be reduced, and kinetic energy loss can be avoided.

[0055] In some embodiments of the present application, the separation device mainly performs single - stage separation on the sewage fluid through the separation part. The separation device is driven by a driving assembly 300 to be rotatable in the installation cavity.

[0056] The driving assembly 300 is connected to the separation device 200 and is used to drive the separation device 200 to rotate in the installation cavity.

[0057] In some embodiments of the present application, the driving assembly 300 includes a driving motor, a driving gear 310, and a driven gear 320. The driving motor is fixed in the installation cavity. The driving gear 310 is connected to the output end of the driving motor. The driven gear 320 is sleeved on the air outlet pipe 230.

[0058] The air outlet pipe 230 is fixedly connected to the separation housing 220. The upper end of the air outlet pipe 230 extends to the outside of the separation housing 220 and is inserted into the air outlet part 111. The driven gear 320 is sleeved on the air outlet pipe 230 and is located between the separation housing 220 and the air outlet part 111. Under the action of the driving assembly 300, the air outlet pipe 230, the separation inner shell 210, and the separation housing 220 rotate synchronously.

[0059] Specifically refer to Figure 7 、 Figure 8 In some embodiments of the present application, a one-way valve group 130 is formed in the return water channel 101 for realizing the one-way conveyance of fluid from the lower conveyance channel 201 to the water storage cavity. After the sewage fluid is separated by the centrifugal device, the sewage is conveyed downward through the lower conveyance channel 201 under the action of the lower guiding part 211 and is finally conveyed to the water storage cavity through the one-way valve group 130.

[0060] The one-way valve group 130 can make it easier for the sewage to enter the water storage cavity and prevent the sewage from flowing back when the cleaning device is used in a flat state.

[0061] Specifically, the one-way valve group 130 includes a plurality of partition parts arranged at intervals along the conveyance direction of the water flow. Each partition part includes at least two valve pieces 131 arranged at intervals along the circumferential direction. One side of each valve piece 131 is formed on the inner wall of the return water part 113.

[0062] Both ends of the valve piece 131 are respectively formed with bends facing the direction of the water storage cavity. A water passing part 132 is formed between adjacent valve pieces 131. The water passing parts 132 of adjacent partition parts are arranged staggeredly.

[0063] When the cleaning device is in a large-angle inclined or flat working state, the sewage in the water storage cavity may flow back. The flowing-back sewage is blocked by the valve piece 131, and bends facing the direction of the water storage cavity are formed on both sides of the water passing part 132. The bend position can make the flow velocity of the fluid larger when flowing into the water storage cavity. When flowing out of the water storage cavity, a large resistance is generated, so that the flow velocity of the sewage is limited and the resistance becomes larger. Moreover, the alternately arranged water passing parts 132 further increase the resistance of the sewage, realizing the one-way inflow of the sewage into the water storage cavity.

[0064] Refer to Figure 16 、 Figure 17 、 Figure 18, in some other embodiments of the present application, the one-way valve group includes a valve body 133. The inner side of the valve body 133 is in contact connection with the outer wall of the water inlet pipe to prevent sewage from flowing through the gap between the valve body 133 and the water inlet pipe. A first end face 1331 close to the installation cavity side and a second end face 1332 far from the installation cavity side are formed on the valve body 133. A plurality of one-way valve channels 134 are arranged on the valve body 133 along the circumferential direction of the valve body 133.

[0065] The one-way valve channels 134 are configured to enable the one-way flow of sewage from the lower delivery channel to the water storage tank.

[0066] Specifically, each one-way valve channel 134 includes a main channel 1341 and a plurality of branch channels 1342 formed on both sides of the main channel 1341. Both ends of the main channel 1341 are communicated with the lower delivery channel and the water storage tank. Each branch channel 1342 is communicated with the main channel 1341. Along the direction from the second end face 1332 to the second end face 1332, each branch channel 1342 respectively includes a straight section and an arc section.

[0067] When the sewage flows from the lower delivery channel to the water storage tank, the sewage is input into the main channel 1341 from the water inlet on the first end face 1331 and is conveyed to the water storage cavity along the main channel 1341.

[0068] When the cleaning device is in a state of tilting at a large angle or lying flat, the sewage in the water storage cavity may flow backward, enter the one-way valve channel 134 from the second end face 1332. Part of the sewage enters the main channel 1341, and part of the sewage enters the straight channel. The sewage in the straight channel meets the sewage in the straight channel after passing through the arc section. The two-way sewage collides, greatly reducing the kinetic energy of the sewage, restricting the conveyance of the sewage, increasing the resistance received, and gradually slowing down the flow rate, playing a role in current limiting.

[0069] Refer to Figure 15 , during operation, the fan is turned on, the driving assembly 300 drives the separation device 200 to rotate. The separation outer shell 220 and the separation inner shell 210 in the separation device 200 rotate synchronously with the air outlet pipe 230. In this state, the upper guiding part 221 in the upper delivery channel 202 forms an upward guiding for the fluid, and the lower guiding part 211 in the lower delivery channel 201 forms a downward guiding for the fluid.

[0070] The sewage fluid mixed with gas enters the water inlet channel 511. Under the action of the upper guiding part 221, it enters the upper delivery channel 202. Under the centrifugal action of the separation device 200, gas-liquid separation is achieved. The separated gas enters the separation inner cavity 203 and is led out by the fan through the output channel 204.

[0071] After separation, the liquid enters the lower conveying channel 201. Under the action of the lower guiding part 211 in the lower conveying channel 201, it is input into the water storage cavity through the water return channel 101.

[0072] Reference Figure 6 、 Figure 13 In some other embodiments of the present application, in order to further improve the separation effect of the separation device 200, the separation device 200 further includes at least one auxiliary separation member 600 connected between the air outlet pipe 230 and the air outlet part 111.

[0073] The number of the auxiliary separation members 600 is at least one, which performs secondary or multiple separations on the sewage fluid.

[0074] The auxiliary separation member 600 is rotatably connected in the separation housing 220 and includes an intermediate housing 610, an auxiliary inner housing 620, and an auxiliary air outlet pipe 630.

[0075] An auxiliary output channel 604 is formed in the auxiliary air outlet pipe 630. An auxiliary inner cavity 603 is formed between the auxiliary air outlet pipe 630 and the auxiliary inner housing 620. An auxiliary upper channel 602 is formed between the intermediate housing 610 and the auxiliary inner housing 620. An auxiliary lower channel 601 is formed between the intermediate housing 610 and the separation housing 220.

[0076] The intermediate housing 610 is connected to the air outlet pipe 230 or the auxiliary air outlet pipe 630 of the upstream auxiliary separation member 600. When there is also an auxiliary separation member 600 below this auxiliary separation member 600, the intermediate housing 610 of this auxiliary separation member 600 is connected to the auxiliary air outlet pipe 630 of the auxiliary separation member 600 located upstream of the fluid flow (that is, the auxiliary separation member 600 adjacent to it below). When this auxiliary separation member 600 is directly connected to the separator below, its corresponding intermediate housing 610 is connected to the air outlet pipe 230 on the separator.

[0077] The auxiliary inner housing 620 in each auxiliary separation member 600 is fixed on the outside of the corresponding auxiliary air outlet pipe 630 through an auxiliary connection part 631, and the auxiliary air outlet pipe 630 is connected to the intermediate housing 610 of the air outlet part 111 or the upstream auxiliary separation member 600.

[0078] When this auxiliary separation member 600 is located at the top layer of the installation cavity, that is, when there is no auxiliary separation member 600 connected above, the auxiliary air outlet pipe 630 of this auxiliary separation member 600 is connected to the air outlet part 111 above. When there is also an auxiliary separation member 600 connected above this auxiliary separation member 600, this auxiliary separation member 600 is connected to or integrally formed with the intermediate housing 610 of the auxiliary separation member 600 located downstream of the fluid flow (that is, the adjacent intermediate housing 610).

[0079] An upper auxiliary guiding portion 621 is provided between the auxiliary inner shell 620 and the intermediate shell 610, and a lower auxiliary guiding portion 611 is formed between the intermediate shell 610 and the separation outer shell 220. Under the action of the driving assembly 300, the auxiliary separating member 600 rotates synchronously with the air outlet pipe 230, the separation inner shell 210, and the separation outer shell 220.

[0080] The driven gear 320 in the driving device on the uppermost auxiliary separating member 600 is connected to the auxiliary air outlet pipe 630 extending outside the separation outer shell 220, and the entire separation device 200 is driven to rotate by driving the auxiliary air outlet pipe 630.

[0081] Reference 12 Figure 14 When the embodiments involved in the present application work, the fan is turned on, and the driving assembly 300 drives the separation device 200 to rotate. The separation outer shell 220, the separation inner shell 210, the intermediate shell 610, the auxiliary inner shell 620, and the auxiliary air outlet pipe 630 in the separation device 200 rotate synchronously with the driving assembly 300. In this state, the upper guiding portion 221 in the upper conveying channel 202 and the upper auxiliary guiding portion 621 in each auxiliary upper channel 602 form an upward guiding, and the lower guiding portion 211 in the lower conveying channel 201 and the lower auxiliary guiding portion 611 in the auxiliary lower channel 601 form a downward guiding.

[0082] The sewage fluid mixed with gas and liquid enters the water inlet channel 511, and under the action of the upper guiding portion 221, it enters the upper conveying channel 202. Under the centrifugal action of the separation device 200, the sewage fluid undergoes gas-liquid separation. After separation, the gas and the sewage fluid that has not been completely separated enter the separation inner cavity 203, and then enter the auxiliary upper channel 602 of the auxiliary separating member 600 connected thereto through the output channel 204. Under the separation action of the auxiliary separating member 600, further separation occurs. After secondary separation, the sewage liquid flows from the auxiliary lower channel 601 through the lower auxiliary guiding portion 611 and is guided to the lower conveying channel 201, and under the action of the lower guiding portion 211 in the lower conveying channel 201, it is input into the water storage cavity through the return water channel 101.

[0083] The unseparated sewage fluid mixed with gas and liquid continues to be conveyed into the next-level auxiliary separating member 600, and so on. After secondary or multi-level separation, the sewage fluid mixed with gas and liquid is finally completely separated, and the gas is output through the auxiliary air outlet channel on the uppermost auxiliary separating member 600.

[0084] The sewage tank 20 and the cleaning equipment involved in the present application are provided with a separation device 200 in the sewage tank 20, which can separate the inhaled sewage fluid at least once, separate the gas and liquid therein, discharge the gas from the sewage tank 20, and store the liquid in the water storage cavity, avoiding a large amount of sewage liquid mixed in the gas output after the fan starts, resulting in bacterial growth, and being beneficial to avoiding equipment failures.

[0085] In addition, a downward guiding power is continuously provided in the lower conveying channel 201 where the separating member communicates with the water storage tank, which is beneficial to avoiding the backflow of the sewage in the water storage tank and affecting the operation of the driving assembly 300 when the cleaning device is in a large-angle inclined or flat working state.

[0086] Furthermore, a one-way valve group 130 is installed in the water return part 113 between the water storage cavity and the lower conveying channel 201. The one-way valve group 130 is used to achieve the one-way conveyance of the fluid from the lower conveying channel 201 to the water storage cavity, so as to avoid the backflow of the sewage when the cleaning device is in a flat use state.

[0087] In the description of the above embodiments, the specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0088] The above are only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A sewage tank, characterized in that, Comprising: A box body, which includes a water storage part and an installation part. A water storage cavity is formed in the water storage part, and an installation cavity is formed in the installation part; A separation device, which is arranged in the installation cavity. The separation device is rotatably connected in the installation cavity. The separation device includes a separation part, and the separation part includes a separation outer shell with an opening at the lower side, a separation inner shell with an opening at the upper side, and an air outlet pipe with openings at both ends. The separation inner shell is fixed outside the air outlet pipe through a connecting part, and the separation outer shell is fixedly connected to the air outlet pipe and is located outside the separation inner shell; A driving assembly, which is connected to the separation device and is used to drive the separation device to rotate in the installation cavity; A water inlet part, which includes a water inlet pipe and a plug-in part formed at the end of the water inlet pipe. The plug-in part extends between the separation inner shell and the separation outer shell, and the upper edge of the plug-in part is lower than the upper edge of the separation inner shell; an upper conveying channel is formed between the plug-in part and the separation inner shell, and a lower conveying channel is formed between the plug-in part and the separation outer shell; an upper guiding part is formed in the upper conveying channel, and a lower guiding part is formed in the lower conveying channel.

2. The sewage tank according to claim 1, wherein A water return part extending into the water storage cavity is formed in the installation cavity, a water return channel is formed between the water inlet part and the water return part, and both ends of the water return channel are respectively communicated with the water storage cavity and the lower conveying channel.

3. The sewage tank according to claim 2, wherein A one-way valve group is formed in the water return channel for realizing the one-way conveyance of fluid from the lower conveying channel to the water storage cavity.

4. The sewage tank according to claim 3, wherein The one-way valve group includes a plurality of partition parts arranged at intervals along the conveying direction of the water flow. Each partition part includes at least two valve pieces. One side of each valve piece is formed on the inner wall of the water return part. Bends towards the water storage cavity direction are respectively formed at both ends of each valve piece. A water passing part is formed between adjacent partition parts, and the water passing parts on adjacent valve pieces are arranged in a staggered manner.

5. The sewage tank according to claim 1, wherein An air outlet part extending into the installation cavity is formed at the top of the box body, and the air outlet pipe is rotatably connected to the air outlet part; a water inlet installation hole is formed at the bottom of the box body, and the water supply pipe is connected to the water storage cavity from the water inlet installation hole.

6. The sewage tank according to claim 1, wherein A bearing part is arranged between the inner wall of the installation cavity and the separation device. An inner installation part is formed on the inner wall of the installation cavity, an outer installation part is formed on the outer wall of the separation outer shell, and the bearing part is connected between the inner installation part and the outer installation part.

7. The sewage tank according to claim 1, wherein The driving assembly includes a driving motor, a driving gear, and a driven gear. The driving motor is fixed in the installation cavity. The driving gear is connected to the output end of the driving motor. The driven gear is sleeved on the air outlet pipe, and the air outlet pipe is fixedly connected to the separation outer shell. Under the action of the driving assembly, the air outlet pipe, the separation inner shell, and the separation outer shell rotate synchronously.

8. The sewage tank according to claim 1, wherein a guiding tip extending downward is formed at the bottom of the separation inner shell to reduce the resistance during fluid transportation.

9. The sewage tank according to claim 1, wherein the separation device further includes at least one auxiliary separation member connected between the air outlet pipe and the air outlet part; the auxiliary separation member is rotatably connected in the separation outer shell and includes an intermediate shell, an auxiliary inner shell, and an auxiliary air outlet pipe; the intermediate shell is connected to the air outlet pipe or the auxiliary air outlet pipe of the upstream auxiliary separation member. The auxiliary inner shell is fixed to the outside of the corresponding auxiliary air outlet pipe through an auxiliary connection part. The auxiliary air outlet pipe is connected to the air outlet part or the intermediate shell of the upstream auxiliary separation member. An upper auxiliary guiding part is arranged between the auxiliary inner shell and the intermediate shell, and a lower auxiliary guiding part is formed between the intermediate shell and the separation outer shell. Under the action of the driving assembly, the auxiliary separation member rotates synchronously with the air outlet pipe, the separation inner shell, and the separation outer shell.

10. A cleaning device, comprising a cleaning main body, characterized in that, It further includes the sewage tank according to any one of claims 1-9 above.

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