Sewage tank and cleaning equipment

Abstract

The utility model discloses a sewage tank and cleaning equipment, the sewage tank comprises a shell, a support and a drainage device, the shell is provided with a containing cavity and a sewage inlet communicated with the containing cavity, the containing cavity is divided into a first cavity and a second cavity by the support, the sewage inlet is communicated with the first cavity, and the drainage device comprises a driving part and a liquid outlet part. The liquid outlet part is configured to be driven by the driving part, the liquid outlet part comprises a liquid inlet and a liquid outlet, the liquid inlet is communicated with the first cavity, the liquid outlet is communicated with the second cavity, and after sewage enters the first cavity from the sewage inlet, the driving part drives the liquid outlet part to act so as to force the sewage to enter the second cavity through the liquid outlet. The driving part and the liquid outlet part are arranged in the containing cavity, solid dirt and liquid sewage entering the first cavity are separated through the structure, the solid dirt is left in the first cavity, and the liquid sewage flows towards the second cavity; therefore, the problem that a sewage tank in the prior art is inconvenient to use is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of cleaning equipment, and particularly relates to a sewage tank and cleaning equipment. BACKGROUND

[0002] The scrubber has the functions of suction, washing and mopping in one, which is beneficial to reducing labor and improving cleaning efficiency for users. With the development, people's requirements for cleaning equipment are also getting higher and higher. For example, when the positions such as the bottom of a bed and the bottom of a sofa need to be cleaned, the scrubber needs to be laid flat to perform the cleaning work. Therefore, the scrubbers with the laying function gradually appear on the market.

[0003] However, in the process of cleaning work by laying flat of the scrubber with the laying function, the sewage tank also lays flat with the machine body. In the process of laying flat of the scrubber to clean the ground, the sewage in the sewage tank is easy to enter the main motor, and the current sewage tank limits the laying angle of the scrubber, including the front and rear angle and the left and right angle, which leads to the decline of consumer experience.

[0004] Therefore, it is necessary to improve the prior art to overcome the defects in the prior art. UTILITY MODEL CONTENTS

[0005] Therefore, the technical problem to be solved by the utility model is the inconvenient use of the sewage tank in the prior art.

[0006] To solve the above technical problems, the utility model provides a sewage tank on one aspect, which is applied to cleaning equipment. The sewage tank comprises a shell, a support and a liquid discharge device. The shell has a containing cavity and a sewage inlet communicating with the containing cavity. The support is arranged inside the containing cavity. The support divides the containing cavity into a first cavity and a second cavity. The sewage inlet communicates with the first cavity. The liquid discharge device comprises a driving member and a liquid outlet member. The driving member is arranged inside the containing cavity. The liquid outlet member is configured to be driven by the driving member. The liquid outlet member is arranged in the second cavity and comprises a liquid inlet and a liquid outlet. The liquid inlet communicates with the first cavity, and the liquid outlet communicates with the second cavity. When sewage enters the first cavity from the sewage inlet, the driving member drives the liquid outlet member to act and force the sewage to enter the second cavity through the liquid outlet.

[0007] The current cleaning equipment such as the scrubber has the laying function, but basically all the products cannot be rotated at a large angle after laying flat. The main problem is that when the angle is large, the water in the sewage tank is easy to be sucked into the driving motor inside the suction device due to the change of the angle, thereby causing the motor to be waterlogged.

[0008] Specifically, after the scrubber lies down, the water in the sewage tank will shake forward and backward with the forward and backward pushing and pulling, thereby forming a surge with a certain impact force. The formation of the surge will form a certain impact on the sewage inlet due to the inertia of the pushing and pulling. At this time, combined with the suction of the suction motor, it is easy to cause the surge of sewage in the sewage tank to enter the suction motor, thereby causing damage to the suction motor.

[0009] The application adopts the structure of the support, the driving member and the liquid outlet member to realize the separation of the solid dirt and the liquid sewage entering the inside of the first cavity, to realize that the solid dirt stays in the inside of the first cavity and the liquid sewage flows towards the second cavity and is saved in the inside of the second cavity. Due to the driving connection structure of the driving member and the liquid outlet member, the sewage can only flow unidirectionally towards the inside of the second cavity under the force of pressure, and the sewage in the inside of the second cavity cannot flow reversely towards the first cavity, thereby ensuring that the phenomenon of sewage flowing to the motor does not occur when the sewage tank is in a lying state. Therefore, due to the existence of external pressure forcing the sewage to enter the second cavity, the cleaning equipment in the application can be laid down at multiple angles, and can also be rotated at a large angle after being laid down, thereby not worrying about the problem of sewage backflow.

[0010] Based on this, since the application scheme forms a positive pressure when the sewage enters the sewage tank, even during the pushing and pulling process, the impact of the surge on the sewage inlet of the sewage tank is offset or resisted by the positive pressure of the driving member, thereby preventing the surge impact during the pushing and pulling process from causing the sewage to enter the suction motor. And since the discharge of the sewage has a certain positive pressure, it no longer has strict requirements on the angle of the body when lying down, which can ensure that the scrubber can be laid down at multiple angles and no longer worry about the damage to the motor caused by the formation of the surge.

[0011] In one specific embodiment, the liquid outlet member is configured as a centrifugal pump, and the driving member is configured as a driving motor and is drivingly connected with the centrifugal pump.

[0012] In this way, the application drives the centrifugal pump to act by using the driving motor, and the centrifugal pump is used to generate negative pressure to provide driving force for the liquid sewage in the inside of the first cavity to flow towards the inside of the second cavity. The solid-liquid separation in the inside of the first cavity is realized under the driving of the driving force. The setting of the driving member and the liquid outlet member ensures the unidirectional flow of the sewage, thereby ensuring that the phenomenon of backflow of the sewage in the sewage tank does not occur, which affects the operation of the cleaning equipment.

[0013] In one specific embodiment, the support includes a bottom plate, and the bottom plate divides the accommodating cavity into the upper first cavity and the lower second cavity. The centrifugal pump is arranged on the bottom plate.

[0014] Thus, the bracket bottom plate is used to form the first cavity and the second cavity in the shell, which is beneficial to realize the storage of liquid and solid in different cavities. The structure of the bracket provides a mounting position for the centrifugal pump, which is beneficial to improve the stability of the sewage tank. The bracket also has the effect of strengthening the strength of the sewage tank.

[0015] In one embodiment, the bottom plate has a liquid discharge channel, and the centrifugal pump is arranged at the bottom end of the liquid discharge channel. The liquid outlet end of the liquid discharge channel is communicated with the liquid inlet.

[0016] Thus, the liquid in the first cavity flows towards the centrifugal pump flow passage through the liquid discharge channel. The liquid discharge channel has a guiding effect. The centrifugal pump arranged at the bottom end of the liquid discharge channel is beneficial to improve the smoothness of sewage flow through gravity, thereby improving the efficiency of sewage flowing to the second cavity.

[0017] In one embodiment, the liquid discharge channel is configured to be flared from the liquid outlet end to the liquid inlet end.

[0018] Thus, the opening of the liquid outlet end of the liquid discharge channel of the present application is smaller than that of the liquid inlet end. The smaller liquid outlet end is beneficial to match the centrifugal pump, so that the sewage in the liquid discharge channel flows into the centrifugal pump. The inner wall surface of the liquid discharge channel has a guiding effect, which improves the smoothness of sewage flow.

[0019] In one embodiment, the sewage tank further comprises a filter element. The filter element is arranged in the first cavity and covers the liquid inlet end of the liquid discharge channel.

[0020] Thus, the filter element is arranged at the liquid inlet end of the liquid discharge channel, which filters the dirt in the first cavity. The liquid sewage flows into the liquid discharge channel through the filter element, which is beneficial to avoid the solid dirt entering the second cavity and the situation of the centrifugal pump being blocked by the solid dirt. The arrangement of the filter element is beneficial to improve the stability of the overall structure.

[0021] In one embodiment, a transmission shaft is arranged on the driving motor. The driving motor is arranged at the upper end of the first cavity. The transmission shaft penetrates the first cavity and is connected with the centrifugal pump, so that the transmission shaft can drive the centrifugal pump to rotate.

[0022] Thus, the driving motor drives the centrifugal pump on the bottom plate through the transmission shaft. The driving motor is arranged at the upper end of the first cavity to avoid contact with the sewage, which improves the safety of use. At the same time, the driving motor arranged at the upper end of the first cavity is also beneficial to reasonably utilize the internal space of the shell, thereby improving the space utilization rate of the shell.

[0023] In an embodiment, the first cavity has an installation pipe arranged on the bracket, and the transmission shaft penetrates through the installation pipe.

[0024] In this way, the installation pipe is arranged outside the transmission shaft to avoid contact between the transmission shaft and the dirt in the interior of the first cavity, so that the transmission shaft is protected, and the service life of the transmission shaft is prolonged.

[0025] In an embodiment, the installation pipe is arranged on the inner wall surface of the side plate of the bracket.

[0026] In this way, the installation pipe is fixed on the side plate of the bracket, so that the installation pipe is stably arranged in the interior of the first cavity, and the problem of noise caused by shaking of the installation pipe during operation of the cleaning device is avoided.

[0027] In an embodiment, the bracket further comprises a side plate and a top plate, and the bottom plate, the side plate, the top plate and the side wall of the shell cooperatively enclose the first cavity, and the dirt inlet is arranged on the side wall.

[0028] In this way, the bracket is provided with the side plate and the bottom plate, and the bracket and the shell cooperatively enclose the first cavity, so that the interior of the shell is divided into the first cavity and the second cavity, and the side plate and the top plate of the bracket also help to ensure the strength of the shell structure and improve the stability of the sewage tank.

[0029] In an embodiment, the shell comprises a barrel and a top cover, the bracket is arranged in the interior of the barrel, the dirt inlet is arranged on the side wall of the barrel, the top cover is arranged at the top opening of the barrel, the top cover and the shell form a containing cavity, and the driving member is arranged on the top surface of the top plate and / or the top cover.

[0030] In this way, the driving member is arranged on the top plate and / or the top cover to be fixed on the top end side of the first cavity, the barrel is used to provide the first cavity and the second cavity, the top cover is arranged on the barrel to avoid overflow of dirt, and the use efficiency of the sewage tank is improved.

[0031] In an embodiment, the top cover has an exhaust port, the bottom plate has a first air hole, the second cavity and the first cavity are in gas communication through the first air hole, the top plate has a second air hole, and the first cavity is in communication with the exhaust port through the second air hole.

[0032] In this way, the first air hole and the second air hole are arranged to realize communication between the first cavity and the second cavity and between the first cavity and the exhaust port, so as to form a gas flow channel in the interior of the shell, the formation of the negative pressure state is ensured, the flow of sewage is ensured, and the use efficiency is improved.

[0033] In one specific embodiment, the top of the shell has an exhaust port, the sewage tank further comprises an air filtering structure arranged at the exhaust port; and / or the sewage inlet is arranged at one end of the shell close to the exhaust port.

[0034] In this way, the air filtering structure is arranged to filter the gas before being discharged to the atmosphere, which helps to avoid air pollution.

[0035] In one specific embodiment, the centrifugal pump comprises a first pump body and a first impeller, the first pump body is arranged on the bracket, the first pump body has a top opening liquid inlet and a side opening liquid outlet, the first impeller is eccentrically arranged in the first pump body, and the driving member is drivingly connected with the first impeller.

[0036] In this way, the first impeller rotates, the sewage entering the first pump body is guided by the first impeller and subjected to centrifugal force, and is discharged from the liquid outlet of the first pump body to the inside of the second cavity, realizing one-way flow of the sewage, which helps to improve the working efficiency of the cleaning device.

[0037] In one specific embodiment, the centrifugal pump comprises a second pump body and a second impeller, the second pump body is arranged on the bracket, the second pump body has a top opening liquid inlet, a plurality of booster channels are formed on the second pump body, the booster channels extend along the bottom side of the second pump body, the second impeller is rotatably arranged in the second pump body, the driving member is drivingly connected with the second impeller, one end of the plurality of booster channels is open at the outer circumferential side of the second impeller, and the other end of the booster channels is open to form a liquid outlet.

[0038] In this way, the centrifugal pump provides greater pressure for the flow of sewage towards the second cavity through the arrangement of the booster channels, ensuring one-way flow of the sewage, which helps to improve the working efficiency of the cleaning device.

[0039] The utility model discloses a cleaning device, the cleaning device comprises a fuselage and the sewage tank, and the sewage tank is arranged on the fuselage.

[0040] In this way, the cleaning device adopts the sewage tank, which helps to store solid and liquid sewage in the first cavity and the second cavity respectively, avoids the influence of sewage on the cleaning device, and improves the flexibility of the cleaning device, thereby improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the description of the specific embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings described in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0042] Figure 1 It is a perspective view of the sewage tank of the present application.

[0043] Figure 2 It is a side view of the sewage tank of the present application.

[0044] Figure 3 It is a perspective view of the support and the top cover of the present application. Figure 2 It is a sectional view of A-A of the present application.

[0045] Figure 4 It is a perspective view of the support and the top cover of the present application.

[0046] Figure 5 It is a perspective view of the centrifugal pump of the present application, wherein the centrifugal pump is a volute centrifugal pump.

[0047] Figure 6 It is a perspective view of the centrifugal pump of the present application, wherein the centrifugal pump is a volute centrifugal pump.

[0048] Figure 7 It is a side view of the centrifugal pump of the present application, wherein the centrifugal pump is a booster centrifugal pump.

[0049] Figure 8 It is a sectional view of B-B of the present application. Figure 7 It is a sectional view of B-B of the present application.

[0050] Figure 9 It is a perspective view of the centrifugal pump of the present application, wherein the centrifugal pump is a booster centrifugal pump.

[0051] Explanation of reference signs:

[0052] 10, shell; 110, cylinder; 111, sewage inlet; 120, top cover; 130, first cavity; 140, second cavity; 20, support; 210, bottom plate; 211, liquid discharge channel; 220, side plate; 230, top plate; 30, centrifugal pump; 301, liquid inlet; 302, liquid outlet; 310, first pump body; 320, first impeller; 330, second pump body; 340, booster channel; 350, second impeller; 40, driving member; 50, transmission shaft; 60, air filtering structure; 70, mounting pipe; 80, filtering member. DETAILED DESCRIPTION

[0053] The technical solutions of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are some of the embodiments of the utility model, rather than all the embodiments. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0054] It should be noted that the terms "first", "second" and the like in the description and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence.

[0055] In the utility model, the orientation words such as "upper", "lower", "top", "bottom" used without contrary description are generally directed to the direction shown in the drawings, or directed to the vertical, perpendicular or gravity direction of the components themselves; similarly, for the convenience of understanding and description, "inner", "outer" means the inner and outer relative to the contour of each component itself, but the above-mentioned orientation words are not used to limit the utility model.

[0056] The sewage tank provided in the application solves the problem of inconvenient use of the sewage tank in the prior art.

[0057] The sewage tank is applied to the cleaning equipment. Specifically, the cleaning equipment in the application comprises a machine body and a sewage tank, the sewage tank is arranged on the machine body, and is used for collecting liquid and solid dirt of a cleaning area.

[0058] The cleaning equipment in the application adopts the arrangement of the sewage tank, which is beneficial to realize that the solid and liquid dirt are respectively stored in the interiors of the first cavity 130 and the second cavity 140, avoids the phenomenon that the sewage influences the cleaning equipment, and is beneficial to improve the user experience.

[0059] As Figures 1 to 9As shown, the sewage tank comprises a shell 10, a support 20 and a liquid discharge device, the shell 10 has a containing cavity and a sewage inlet 111 communicating with the containing cavity, the support 20 is arranged inside the containing cavity, the support 20 divides the containing cavity into a first cavity 130 and a second cavity 140, the sewage inlet 111 communicates with the first cavity 130, the liquid discharge device comprises a driving member 40 and a liquid outlet member, the driving member 40 is arranged inside the containing cavity, the liquid outlet member is configured to be driven by the driving member 40, the liquid outlet member is arranged in the second cavity 140, the liquid outlet member comprises a liquid inlet 301 and a liquid outlet 302, the liquid inlet 301 communicates with the first cavity 130, and the liquid outlet 302 communicates with the second cavity 140. The flow path of the sewage of the present application is in turn the sewage inlet 111, the first cavity 130, the liquid discharge device, and the second cavity 140. When the sewage enters the first cavity 130 from the sewage inlet 111, the driving member 40 of the present application drives the liquid outlet member to act and forces the sewage to enter the second cavity 140 through the liquid outlet 302.

[0060] Among them, the first cavity 130 is a solid waste receiving cavity communicating with the sewage inlet 111, and the second cavity 140 is a liquid sewage receiving cavity. During the operation of the cleaning device, solid waste and sewage enter the inside of the first cavity 130 through the sewage inlet 111, and then under the cooperation of the liquid outlet member and the driving member 40, the sewage flows from the first cavity 130 to the second cavity 140 and is stored in the second cavity 140.

[0061] Specifically, the present application adopts the structure of the support 20, the driving member 40 and the liquid outlet member to separate the solid waste and the liquid sewage entering the inside of the first cavity 130, to keep the solid waste in the inside of the first cavity 130, and to make the liquid sewage flow towards the second cavity 140 and be stored in the inside of the second cavity 140. Due to the driving connection structure of the driving member 40 and the liquid outlet member, the sewage can only flow unidirectionally towards the inside of the second cavity 140, and the sewage in the inside of the second cavity 140 cannot flow reversely towards the first cavity 130, thereby ensuring that the sewage tank will not appear the phenomenon of sewage flowing to the motor when it is in a lying state, and thereby ensuring the stable operation of the cleaning device.

[0062] The structure of the driving member 40 and the liquid outlet member is arranged inside the shell 10. During the operation of the cleaning device, when the cleaning device is working at any angle, for example, when the cleaning device moves left and right after lying down, the structure of the sewage tank will not interfere with the body, thereby ensuring that the sewage tank can be used for working at any angle, improving the flexibility of use, and being beneficial to improving the user experience.

[0063] In this embodiment, the liquid outlet member is configured as a centrifugal pump 30, which is used to provide pressure for the liquid flow to the second cavity 140, and thereby the sewage in the inside of the first cavity 130 flows towards the inside of the second cavity 140 under the pressure.

[0064] In the present embodiment, at least two different structures are provided according to the structure of the centrifugal pump 30.

[0065] In the specific embodiment as shown in Figure 5 and Figure 6 , the centrifugal pump 30 adopts a volute centrifugal pump, the centrifugal pump 30 comprises a first pump body 310 and a first impeller 320, the first pump body 310 is arranged on the bracket 20, the first pump body 310 has a top opening liquid inlet 301 and a side opening liquid outlet 302, the first impeller 320 is arranged eccentrically in the interior of the first pump body 310, and the driving member 40 is in driving connection with the first impeller 320.

[0066] Specifically, the driving member 40 is in driving connection with the first impeller 320 to drive the first impeller 320 to rotate in the interior of the first pump body 310, after the sewage enters the interior of the first pump body 310 through the liquid inlet 301, the sewage contacts the blades on the rotating impeller, the sewage is subjected to the centrifugal force, and then the sewage entering the interior of the first pump body 310 is guided by the first impeller 320 and is discharged from the liquid outlet 302 of the first pump body 310 to the interior of the second cavity 140 under the action of the centrifugal force, realizing the unidirectional flow of the sewage, which is beneficial to improve the working efficiency of the cleaning equipment.

[0067] In the specific embodiment as shown in Figures 7 to 9 , the centrifugal pump 30 is a booster centrifugal pump, the centrifugal pump 30 comprises a second pump body 330 and a second impeller 350, the second pump body 330 is arranged on the bracket 20, the second pump body 330 has a top opening liquid inlet 301, a plurality of booster channels 340 are formed on the second pump body 330, the booster channels 340 extend along the bottom side of the second pump body 330, the second impeller 350 is rotatably arranged in the interior of the second pump body 330, the driving member 40 is in driving connection with the second impeller 350, one end of the plurality of booster channels 340 is arranged on the outer circumferential side of the second impeller 350, and the other end of the booster channels 340 forms the liquid outlet 302.

[0068] Specifically, compared with the tubular single channel in the prior art, the sewage is subjected to greater pressure when being discharged through the booster channel 340. The centrifugal pump 30 adopted by the present application provides greater pressure for the flow of the sewage towards the second cavity 140 through the arrangement of the booster channel 340, guarantees the unidirectional flow of the sewage, and is beneficial to improve the working efficiency of the cleaning equipment.

[0069] In the present embodiment, the plurality of booster channels 340 are arranged at equal intervals along the circumference of the second pump body 330, thereby guaranteeing that the liquid can uniformly flow to the second cavity 140 through the plurality of booster channels 340, improving the stability of use, and being beneficial to reduce noise.

[0070] In the embodiment, the driving member 40 is configured to drive the motor and is drivingly connected with the centrifugal pump 30.

[0071] The centrifugal pump 30 is used to generate negative pressure to provide driving force for the liquid sewage in the first cavity 130 to flow towards the inside of the second cavity 140, and the solid-liquid separation in the first cavity 130 is realized under the driving of the driving force. The arrangement of the driving member 40 and the liquid outlet member ensures one-way flow of the sewage, thereby ensuring that the phenomenon of sewage backflow in the sewage tank does not occur, which affects the operation of the cleaning equipment.

[0072] As shown in Figure 3 and Figure 4 , the driving motor is arranged at the upper end of the first cavity 130, and the centrifugal pump 30 is arranged on the bottom plate 210 of the support 20.

[0073] The driving motor is arranged at the upper end of the first cavity 130 to avoid contact with the sewage, thereby improving the safety of use. At the same time, the driving motor arranged at the upper end of the first cavity 130 is also conducive to the rational use of the internal space of the shell 10, thereby improving the space utilization rate of the internal space of the shell 10.

[0074] The driving motor drives the centrifugal pump 30 on the bottom plate 210 through the transmission shaft 50, wherein the driving motor is arranged at the upper end of the first cavity 130 to avoid contact with the sewage, thereby improving the safety of use. At the same time, the driving motor arranged at the upper end of the first cavity 130 is also conducive to the rational use of the internal space of the shell 10, thereby improving the space utilization rate of the internal space of the shell 10.

[0075] In the embodiment, as shown in Figure 3 and Figure 4 , the support 20 includes a bottom plate 210, a side plate 220 and a top plate 230, and the bottom plate 210, the side plate 220, the top plate 230 and the side wall of the shell 10 cooperatively enclose the first cavity 130, and the inlet 111 is arranged on the side wall.

[0076] Specifically, the first cavity 130 is enclosed by the support 20 and the shell 10, and the arrangement of the support 20 is conducive to improving the structural strength of the sewage tank and improving the stability of the sewage tank.

[0077] The side plate 220 is arranged in abutment with the inner surface of the shell 10 to support the shell 10 and improve the strength of the shell 10. At the same time, the abutment of the side plate 220 with the inner surface of the shell 10 is conducive to the rational use of the internal space of the shell 10, thereby forming the first cavity 130 with a large volume.

[0078] The top plate 230 is arranged on one side of the top cover 120 of the shell 10, and the top plate 230 and the bottom plate 210 are oppositely arranged. The top plate 230 can provide a mounting position for the installation of the driving motor. In this embodiment, the top plate 230 can be fixedly connected to the top cover 120, for example, by a fastener such as a screw.

[0079] As shown in Figure 3 , the bottom plate 210 divides the accommodating cavity into an upper first cavity 130 and a lower second cavity 140. The centrifugal pump 30 is arranged on the bottom plate 210.

[0080] Specifically, the bottom plate 210 of the bracket 20 is adopted to divide the interior of the shell 10 into the first cavity 130 and the second cavity 140, which is beneficial to realize the separate storage of liquid and solid. Meanwhile, the structure of the bracket 20 provides a mounting position for the centrifugal pump 30, which is beneficial to improve the stability of the structure of the sewage tank. The bracket 20 provided in this application also has the effect of strengthening the strength of the sewage tank.

[0081] The bottom plate 210 is provided with a liquid discharge channel 211. The centrifugal pump 30 is arranged at the bottom end of the liquid discharge channel 211. The liquid outlet end of the liquid discharge channel 211 is in communication with the liquid inlet 301. The liquid discharge channel 211 is arranged on the bottom plate 210 to make the liquid in the interior of the first cavity 130 flow towards the flow passage of the centrifugal pump 30 through the liquid discharge channel 211. The liquid discharge channel 211 has a guiding effect. The centrifugal pump 30 arranged at the bottom end of the liquid discharge channel 211 is beneficial to improve the smoothness of the sewage flow through gravity, thereby improving the efficiency of the sewage flowing into the second cavity 140.

[0082] In this embodiment, the liquid discharge channel 211 is configured to be in a flared shape from the liquid outlet end to the liquid inlet end of the liquid discharge channel 211. The opening of the liquid outlet end of the liquid discharge channel 211 of this application is smaller than the opening of the liquid inlet end. The liquid inlet end is in communication with the first cavity 130. After the sewage enters the interior of the first cavity 130, the larger opening of the liquid inlet end facilitates the inflow of the sewage. The smaller liquid outlet end is beneficial to match the centrifugal pump 30. The sewage flows from the liquid inlet end to the side of the liquid outlet end, so that the sewage in the interior of the liquid discharge channel 211 all flows into the liquid inlet 301 of the centrifugal pump 30. The inner wall surface formed between the liquid inlet end and the liquid outlet end of the liquid discharge channel 211 has a guiding effect, which improves the smoothness of the sewage flow.

[0083] As shown in Figure 3 , the sewage tank further comprises a filter 80. The filter 80 is arranged in the interior of the first cavity 130 and covers the liquid inlet end of the liquid discharge channel 211.

[0084] Specifically, the filter 80 is arranged at the liquid inlet end of the liquid discharge channel 211, so that the dirt inside the first cavity 130 is filtered, and the sewage liquid flows into the inside of the liquid discharge channel 211 through the filter 80, which helps to avoid the solid dirt from entering the second cavity 140 and the situation that the centrifugal pump 30 is blocked by the solid dirt. The arrangement of the filter 80 helps to improve the stability of the overall structure.

[0085] In this embodiment, the filter 80 can be a filter screen, which is detachably arranged on the bracket 20 to facilitate the replacement and cleaning of the filter screen. Specifically, the filter 80 can be clamped and fixed on the bracket 20, and the specific structure of the clamping can be that the bracket 20 has a ring groove, and the outer circumferential side of the filter 80 extends into the inside of the ring groove.

[0086] As shown in Figure 3 , the inside of the first cavity 130 has a mounting pipe 70, and the mounting pipe 70 is arranged on the bracket 20, and the transmission shaft 50 penetrates the mounting pipe 70.

[0087] Specifically, the mounting pipe 70 is arranged on the outside of the transmission shaft 50, and the mounting pipe 70 separates the transmission shaft 50 from the dirt inside the first cavity 130, so as to avoid the contact between the transmission shaft 50 and the dirt inside the first cavity 130, thereby achieving the effect of protecting the transmission shaft 50, avoiding the influence of the dirt on the rotation, and helping to improve the use efficiency and service life of the transmission shaft 50.

[0088] In this embodiment, the mounting pipe 70 is arranged on the inner wall surface of the side plate 220, and the mounting pipe 70 is fixed on the side plate 220 of the bracket 20, which helps to stably arrange the mounting pipe 70 inside the first cavity 130, and avoids the problem of noise caused by the shaking of the mounting pipe 70 during the operation of the cleaning device.

[0089] As shown in Figures 1 to 3 , the shell 10 includes a cylinder body 110 and a top cover 120, the bracket 20 is arranged inside the cylinder body 110, the dirt inlet 111 is arranged on the side wall of the cylinder body 110, and the top cover 120 is arranged at the top opening of the cylinder body 110. The top cover 120 and the shell 10 form a containing cavity, and the driving member 40 can be arranged on the top cover 120.

[0090] Specifically, the top cover 120 of the present application provides a mounting position for the installation of the driving member 40, so that the driving member 40 is fixed on the top end side of the first cavity 130. The cylinder body 110 is used to provide the first cavity 130 and the second cavity 140, and the top cover 120 is arranged on the cylinder body 110 to avoid the phenomenon of dirt overflow, which helps to improve the use efficiency of the sewage tank.

[0091] In this embodiment, the top cover 120 and the cylinder 110 are fixed together by fasteners or snap-fit. The fasteners can be structural components such as bolts, and the snap-fit ​​structure can be that the top cover 120 has a snap-fit ​​protrusion and the inside of the cylinder 110 has a snap-fit ​​groove, and the snap-fit ​​protrusion and the snap-fit ​​groove are snap-fitted together and fixed.

[0092] In this embodiment, the top cover 120 has an exhaust port, the bottom plate 210 has a first vent hole, and the second cavity 140 and the first cavity 130 have gas flow through the first vent hole; the top plate 230 has a second vent hole, and the first cavity 130 is connected to the exhaust port through the second vent hole.

[0093] Specifically, this application adopts a structure of first vent and second vent to achieve communication between the first cavity 130 and the second cavity 140, as well as between the first cavity 130 and the exhaust port, thereby realizing the gas flow channel inside the shell 10. This helps to ensure the formation of a negative pressure state, ensures the unidirectional flow of sewage toward the second cavity 140, and improves the efficiency of use.

[0094] In this application, the sewage inlet 111 is located on the end of the housing 10 near the exhaust port. The sewage inlet 111 is located on the side near the exhaust port. There is a large gap between the sewage inlet 111 and the base plate 210 of the bracket 20, which helps to prevent the sewage inside the first cavity 130 from being discharged through the sewage inlet 111.

[0095] In this embodiment, the sewage tank also includes an air filter structure 60, which is located at the exhaust port. By setting the air filter structure 60, the gas is filtered and discharged into the atmosphere, which helps to avoid gas pollution. The filter structure can be an air filter in the prior art.

[0096] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0097] This application employs a structure consisting of a bracket 20, a drive unit 40, and a liquid outlet to separate solid waste and liquid waste entering the first chamber 130. This allows solid waste to remain inside the first chamber 130, while the liquid waste flows towards the second chamber 140 and is stored inside the second chamber 140. Due to the drive unit 40 and the liquid outlet being connected in a drive-connected configuration, wastewater can only flow in one direction towards the second chamber 140. Wastewater inside the second chamber 140 cannot flow back towards the first chamber 130, thus ensuring that wastewater will not flow towards the motor when the wastewater tank is in a horizontal position.

[0098] The drive unit 40 and the liquid outlet unit of this application are arranged inside the housing 10, thereby ensuring that the sewage tank can be used for flat operation at any angle, improving the flexibility of use and improving the user experience.

[0099] Obviously, the above-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, other different forms of changes or variations can be made by those skilled in the art without making creative labor, and all should belong to the protection scope of the present application.

Claims

1. A sump tank characterized in that, The sewage tank is applied to a cleaning device and comprises: a shell (10) having a containing cavity and a sewage inlet (111) communicating with the containing cavity; a support (20) arranged inside the containing cavity, the support (20) separating the containing cavity into a first cavity (130) and a second cavity (140), and the sewage inlet (111) communicating with the first cavity (130); a liquid discharging device, the liquid discharging device comprising: a driving member (40) arranged inside the containing cavity; a liquid outlet member configured to be driven by the driving member (40), the liquid outlet member being arranged in the second cavity (140) and comprising a liquid inlet (301) and a liquid outlet (302), the liquid inlet (301) communicating with the first cavity (130), and the liquid outlet (302) communicating with the second cavity (140); when sewage enters the first cavity (130) from the sewage inlet (111), the driving member (40) drives the liquid outlet member to force the sewage to enter the second cavity (140) through the liquid outlet (302).

2. The sump tank of claim 1, wherein, The liquid outlet member is configured as a centrifugal pump (30) for providing pressure for liquid flowing to the second cavity (140); the driving member (40) is configured as a driving motor and is drivingly connected with the centrifugal pump (30).

3. The sump tank of claim 2, wherein, The support (20) comprises a bottom plate (210) separating the containing cavity into the first cavity (130) in an upper layer and the second cavity (140) in a lower layer, and the centrifugal pump (30) is arranged on the bottom plate (210).

4. The sump tank of claim 3, wherein, The bottom plate (210) has a liquid discharging channel (211), the centrifugal pump (30) is arranged at a bottom end of the liquid discharging channel (211), and a liquid outlet end of the liquid discharging channel (211) communicates with the liquid inlet (301).

5. The sump tank of claim 4, wherein, The liquid discharging channel (211) is configured to be flared from the liquid outlet end to a liquid inlet end of the liquid discharging channel (211).

6. The sump tank of claim 4, wherein, The sewage tank further comprises a filter (80) arranged inside the first cavity (130) and covering the liquid inlet end of the liquid discharging channel (211).

7. The sump tank of claim 2, wherein, The driving motor is provided with a transmission shaft (50), the driving motor is arranged at an upper end of the first cavity (130), the transmission shaft (50) penetrates through the first cavity (130) and is connected with the centrifugal pump (30), so that the transmission shaft (50) can drive the centrifugal pump (30) to rotate.

8. The sump tank of claim 7, wherein, The first cavity (130) has a mounting pipe (70) arranged on the support (20), and the transmission shaft (50) penetrates through the mounting pipe (70).

9. The sump tank of claim 8, wherein, The mounting pipe (70) is arranged on an inner wall surface of the support (20).

10. The sump tank of claim 3, wherein, The support (20) further comprises a side plate (220) and a top plate (230), and the bottom plate (210), the side plate (220), the top plate (230) and a side wall of the shell (10) cooperatively enclose the first cavity (130), and the sewage inlet (111) is arranged on the side wall.

11. The sump tank of claim 10, wherein, The shell (10) comprises: a cylinder body (110), the bracket (20) is arranged inside the cylinder body (110), and the sewage inlet (111) is arranged on the side wall of the cylinder body (110); a top cover (120) arranged at the top opening of the cylinder body (110), the top cover (120) and the shell (10) form the accommodating cavity, and the driving member (40) is arranged on the top surface of the top plate (230) and / or the top cover (120).

12. The sump tank of claim 11, wherein, The top cover (120) has an exhaust port, The bottom plate (210) has a first air hole, and the first cavity (130) and the second cavity (140) are in gas flow through the first air hole; The top plate (230) has a second air hole, and the first cavity (130) is arranged in communication through the second air hole and the exhaust port.

13. The sump tank of any one of claims 1 to 12, wherein, The shell (10) has an exhaust port at the top, The sewage tank further comprises an air filtering structure (60) arranged at the exhaust port; and / or The sewage inlet (111) is arranged on the shell (10) near one end of the exhaust port.

14. The sump tank of any one of claims 2 to 12, wherein, The centrifugal pump (30) comprises: a first pump body (310) arranged on the bracket (20), the first pump body (310) having the liquid inlet (301) with a top opening and the liquid outlet (302) with a side opening; a first impeller (320) arranged eccentrically inside the first pump body (310), and the driving member (40) is in driving connection with the first impeller (320).

15. The sump tank of any one of claims 2 to 12, wherein, The centrifugal pump (30) comprises: a second pump body (330) arranged on the bracket (20), the second pump body (330) having the liquid inlet (301) with a top opening, and a plurality of booster channels (340) are formed on the second pump body (330) and extend towards the bottom side of the second pump body (330); a second impeller (350) rotatably arranged inside the second pump body (330), the driving member (40) is in driving connection with the second impeller (350), one end of the plurality of booster channels (340) is arranged on the outer circumferential side of the second impeller (350), and the other end of the booster channel (340) forms the liquid outlet (302).

16. A cleaning apparatus, characterized by It comprises: a fuselage; The sewage tank according to any one of claims 1 to 15 is arranged on the fuselage.

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