A solid-liquid separation structure of a sewage tank

Abstract

A solid-liquid separation structure of a sewage tank, comprising: a tank body, which is provided with a water inlet and an air outlet, the water inlet and the air outlet are interconnected to make the air path unobstructed; an outer tank liner, which is formed on the tank body and is used to contain sewage liquid; an inner tank liner, which is detachably arranged in the outer tank liner and docked with the water inlet, and is used to contain solid sewage; a cover, which is arranged at the bottom of the inner tank liner, and a plurality of sieve holes are provided on the cover, a separation gap is formed between the cover and the bottom of the outer tank liner, and the cover can have an open state and a closed state relative to the inner tank liner; a driving device, which is used to drive the cover, so that the cover can switch between an open state and a closed state. The present invention realizes the solid-liquid separation of the sewage tank through the coordinated use of the inner tank liner, the outer tank liner and the cover. When dumping, the sewage liquid remains in the outer tank liner, and the solid sewage remains in the inner tank liner, and they are disposed of separately, thereby completely eliminating the defect of clogging the pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of manufacturing household appliances, in particular to a solid-liquid separation structure of a sewage tank applied to cleaning appliances. Background Art

[0002] Cleaning equipment refers to mechanical equipment that can be used to replace manual labor to clean stains and dirt such as oil, wax, dust, oxide layer, etc. on the surface of objects. It is widely used in many occasions, such as homes, shopping malls, hospitals, office buildings, squares, cars, etc.

[0003] Take floor cleaning equipment as an example. Floor cleaning equipment is a commonly used equipment in the cleaning industry. It uses a roller brush or brush set at the bottom to clean the dust or dirt on the ground to complete the cleaning work. Floor cleaning equipment has a wide range of uses and is suitable for cleaning hard floors and soft floors such as cement, granite, and tiles.

[0004] Most floor cleaning equipment has a liquid discharge mechanism. The basic principle of cleaning is to wet the roller brush or brush or the floor with liquid discharged from the liquid discharge mechanism, and clean the floor with the roller brush or brush. After cleaning, the dirty liquid is recovered through the dirty liquid recovery mechanism of the floor cleaning equipment.

[0005] The recycling barrel in the prior art generally includes an inlet channel for sewage to enter, a sewage storage functional structure, and an outlet channel for gas to be discharged, but the recycling barrel only has the function of storing sewage, and the sewage entering the recycling barrel usually contains some impurities, large solid particles, etc. The accumulation of large solid particles and impurities can easily cause blockage of the water inlet channel. At this time, it is possible that the recycling barrel is not completely full of sewage, but due to the blockage of the water inlet channel, the sewage can no longer enter the recycling barrel, affecting the use of the entire cleaning equipment. If the cleaning equipment needs to be used normally again, the user needs to frequently clean the large particles and impurities in the water inlet channel. Moreover, when the user cleans the sewage barrel, the solid garbage is not separated from the sewage. When the user pours the sewage into the sewer, the solid garbage is easy to block the sewer, resulting in a poor user experience. Summary of the invention

[0006] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a solid-liquid separation structure for a sewage tank.

[0007] The technical solution of the present invention to solve the technical problem is: a solid-liquid separation structure of a sewage tank, comprising:

[0008] The box body is provided with a water inlet and an air outlet, wherein the water inlet and the air outlet are connected to each other so that the air path is unobstructed;

[0009] An outer box liner is formed on the box body and is used to contain dirty liquid;

[0010] An inner box liner is detachably disposed in the outer box liner and docked with the water inlet for containing solid waste;

[0011] A cover is arranged at the bottom of the inner box liner, a plurality of sieve holes are provided on the cover, a separation gap is formed between the cover and the bottom of the outer box liner, and the cover can be in an open state and a closed state relative to the inner box liner;

[0012] A driving device is used to drive the cover so that the cover is switched between an open state and a closed state.

[0013] Preferably, the sealing cover has a fixed end and a movable end, the fixed end is rotatably connected to the inner box liner, and the movable end can be locked with or separated from the inner box liner.

[0014] Preferably, the driving device comprises a fixed locking tongue arranged on the cover, a movable locking tongue arranged on the inner box liner, and a driving member acting on the movable locking tongue;

[0015] When the movable locking tongue and the fixed locking tongue are locked with each other, the cover is in a closed state relative to the inner box liner;

[0016] When the driving member drives the movable locking tongue to separate from the fixed locking tongue, the movable end of the cover falls freely under the action of gravity to be in an open state relative to the inner box.

[0017] Preferably, the driving member includes a button and a transmission rod, the transmission rod has an input end and an output end, the button is movably arranged on the inner box and can be transmission-connected to the input end of the transmission rod, and the output end of the transmission rod can contact the movable lock tongue and drive the movable lock tongue to move.

[0018] Preferably, the driving member further comprises a reset component, and the reset component enables the movable lock tongue to have a movement tendency of always approaching the fixed lock tongue;

[0019] The reset assembly comprises a first spring acting on the movable locking tongue, a second spring acting on the transmission rod, and a third spring acting on the button.

[0020] Preferably, the button, the transmission rod, and the movable locking tongue are arranged on the outer wall of the inner box from top to bottom in sequence;

[0021] The button is arranged horizontally, and the inner end of the button has an inclined driving end face. The transmission rod is arranged vertically, and the input end of the transmission rod has an inclined force-bearing end face that matches the driving end face.

[0022] Preferably, a guide groove is further provided on the transmission rod, and a limiting member is provided on the outer wall of the inner box liner, and the limiting member is inserted into the guide groove.

[0023] Preferably, the movable lock tongue is rotatably connected to the inner box liner via a first rotating shaft, one side of the movable lock tongue has a driving position that cooperates with the output end of the transmission rod, and the other side of the movable lock tongue has a hook that cooperates with the fixed lock tongue.

[0024] Preferably, the water inlet is connected to the inner box liner from the lower end, the air outlet is connected to the inner box liner from the upper end, and the water inlet and the air outlet are staggered.

[0025] Preferably, a float stopper and a float are further provided in the box body, and the float is movably installed in the float stopper and has a working position state and a non-working position state;

[0026] It also includes a fixed conductive part and a movable conductive part, wherein the fixed conductive part is arranged on the box or the floating body limiter, the movable conductive part is arranged on the floating body, and the fixed conductive part is connected to an external circuit;

[0027] When the floating body is in the working position, the movable conductive part is separated from the fixed conductive part; when the floating body is in the non-working position, the movable conductive part is in contact with the fixed conductive part for electrical conduction.

[0028] The beneficial effects of the present invention are: 1. Through the coordinated use of the inner box liner, the outer box liner and the cover, the solid-liquid separation and disposal function of the sewage tank is realized, that is, when dumping, all the sewage liquid remains in the outer box liner, and all the solid sewage remains in the inner box liner, and they are disposed of separately, thereby completely eliminating the defect of clogging the pipeline and eliminating the pain points in the prior art; 2. The driving device adopts a mechanical structure combination of a fixed lock tongue, a movable lock tongue and a driving part, which has outstanding advantages in many aspects such as space, ease of use and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an assembly schematic diagram of the present invention.

[0030] Figure 2 It is a schematic assembly diagram of the present invention from another angle.

[0031] Figure 3 It is a cross-sectional view of the present invention.

[0032] Figure 4 It is a schematic diagram of the structure when the inner box liner and the outer box liner are separated in the present invention.

[0033] Figure 5It is a structural schematic diagram of the inner box liner in the present invention when the cover is in an open state.

[0034] Figure 6 It is a structural schematic diagram of the inner box liner in the present invention when the cover is in a closed state.

[0035] Figure 7 It is a structural schematic diagram of the transmission rod in the present invention.

[0036] Figure 8 It is a structural schematic diagram of a button in the present invention.

[0037] Fig. 9 It is a structural schematic diagram of the movable lock tongue in the present invention.

[0038] In the figure: 1. box body; 2. water inlet; 3. air outlet; 4. outer box liner; 5. inner box liner; 6. cover; 7. sieve hole; 8. separation gap; 9. driving device; 10. sealing ring; 11. fixed end; 12. movable end; 13. fixed locking tongue; 14. movable locking tongue; 15. button; 16. transmission rod; 17. input end; 18. output end; 19. first spring; 20. second spring; 21. third spring; 22. driving end face; 23. force-bearing end face; 24. locking structure; 25. guide groove; 26. limiter; 27. first rotating shaft; 28. driving position; 29. ​​hook; 30. floating body limiter; 31. floating body; 32. fixed conductive part; 33. movable conductive part. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Reference Figures 1 to 9 , a solid-liquid separation structure of a sewage tank, comprising:

[0041] The box body 1 is provided with a water inlet 2 and an air outlet 3, wherein the water inlet 2 and the air outlet 3 are interconnected to make the air path unobstructed;

[0042] An outer box 4, which is formed on the box body 1 and is used to contain dirty liquid;

[0043] An inner box 5, which is detachably disposed in the outer box 4 and docked with the water inlet 2, and is used to contain solid waste;

[0044] A cover 6 is provided at the bottom of the inner box 5, and a plurality of sieve holes 7 are provided on the cover 6. A separation gap 8 is formed between the cover 6 and the bottom of the outer box 4 to prevent blockage that causes gas and liquid to not flow, and the cover 6 can be in an open state and a closed state relative to the inner box 5;

[0045] The driving device 9 is used to drive the cover 6 so that the cover 6 is switched between an open state and a closed state.

[0046] The detachable connection between the inner box 5 and the outer box 4 may be a structure clamped by a sealing ring 10 or a buckle structure, which is not particularly limited here.

[0047] The above content is the basic scheme of the present invention, and the situation during use is as follows: the dirty liquid accompanied by solid dirt first enters the inner box 5 of the box body 1 from the water inlet 2, and the cover 6 with the sieve hole 7 plays a filtering role, which can intercept the solid dirt, and the dirty liquid can pass through the sieve hole 7 into the outer box 4 to achieve solid-liquid separation; of course, when the inner box 5 and the outer box 4 are spliced ​​and working, due to capacity reasons, the dirty liquid can also exist in the inner box 5 at the same time. When it is necessary to clean the sewage tank after use, the inner box 5 and the outer box 4 are separated and the inner box 5 is lifted up, at which time the dirty liquid in the inner box 5 all falls into the outer box 4, and the solid dirt remains in the inner box 5. Then the user can clean the outer box 4 and the inner box 5 separately, and the dirty liquid in the outer box 4 can be directly poured to the outside; on the other hand, since the solid dirt is intercepted in the inner box 5, only the solid dirt is left in the inner box 5, and the cover 6 can be opened for separate dumping, so the pipeline will not be blocked during processing, eliminating the pain points in the prior art.

[0048] The specific structure of the cover 6 is preferably: it has a fixed end 11 and a movable end 12, the fixed end 11 is rotatably connected to the inner box 5, and the movable end 12 can be locked with or separated from the inner box 5.

[0049] The driving device 9 has various forms. Considering the space, ease of use, stability and other factors, a preferred method is provided here: it includes a fixed lock tongue 13 arranged on the cover 6, a movable lock tongue 14 arranged on the inner box 5, and a driving member acting on the movable lock tongue 14; when the movable lock tongue 14 and the fixed lock tongue 13 are locked with each other, the cover 6 is in a closed state relative to the inner box 5; when the driving member drives the movable lock tongue 14 to separate from the fixed lock tongue 13, the movable end 12 of the cover 6 is freely flipped down under the action of gravity to be in an open state relative to the inner box 5. More specifically, the driving member includes a button 15 and a transmission rod 16, the transmission rod 16 has an input end 17 and an output end 18, the button 15 is movably arranged on the inner box 5 and can be connected to the input end 17 of the transmission rod 16 by transmission, and the output end 18 of the transmission rod 16 can contact the movable lock tongue 14 and drive the movable lock tongue 14 to move.

[0050] If only the driving member is used, the movable locking tongue 14 needs to be pressed when locking and pulled outward when separating, which is quite troublesome to operate, and the driving stroke is not in place, and the stability when locking is poor. In order to solve the above defects, a new solution is provided, which still relies on the external force applied by the operator when driving, and relies on the reset component when resetting. Specifically: the driving member also includes a reset component, and the reset component makes the movable locking tongue 14 have a movement tendency to always approach the fixed locking tongue 13; the reset component includes a first spring 19 acting on the movable locking tongue 14, a second spring 20 acting on the transmission rod 16, and a third spring 21 acting on the button 15. Through the joint cooperation of the first spring 19, the second spring 20 and the third spring 21, the movable lock tongue 14, the transmission rod 16 and the button 15 can be reset independently, the reset force is stronger and more stable and reliable, and the jamming and obstruction are reduced. On the other hand, the movable lock tongue 14 has a movement tendency to always approach the fixed lock tongue 13, so that when no external force is applied, the sealing plate can be stably maintained in a closed state relative to the inner box 5, and can withstand heavier solid dirt without opening.

[0051] A preferred arrangement: the button 15, the transmission rod 16, and the movable locking tongue 14 are arranged in sequence from top to bottom on the outer wall of the inner box 5; when in use, when the user holds the inner box 5 with one hand, the button 15 can be pressed with the finger of the same hand, that is, the switching operation can be achieved with one hand. A more detailed structural arrangement: the button 15 is arranged horizontally, and the inner end of the button 15 has an inclined driving end face 22, and the transmission rod 16 is arranged vertically, and the input end 17 of the transmission rod 16 has an inclined force end face 23 that is compatible with the driving end face 22. Through the cooperation of the driving end face 22 and the force end face 23, the lateral force at the button 15 can be more smoothly converted to the vertical force at the transmission rod 16.

[0052] On the other hand, a locking structure 24 connected to the cleaning appliance body is preferably provided on the upper part of the housing 1, wherein the locking structure 24 is located on one side of the housing 1, and the button 15 is arranged on the other side, with the heights being consistent or similar, to facilitate one-handed operation by the user.

[0053] In order to enable the transmission rod 16 to move along a predetermined route during the up and down movement, a guide groove 25 is further provided on the transmission rod 16, and a stopper 26 is provided on the outer wall of the inner box 5, and the stopper 26 is inserted into the guide groove 25. Another function of the stopper 26 is to limit the transmission rod 16 to the outer wall of the inner box 5 while ensuring that the transmission rod 16 can move up and down, so as to prevent it from falling off and separating, which affects the normal function.

[0054] A preferred structure of the movable lock tongue 14 is that it is rotatably connected to the inner box 5 via a first rotating shaft 27, one side of the movable lock tongue 14 has a driving position 28 that matches the output end 18 of the transmission rod 16, and the other side of the movable lock tongue 14 has a hook 29 that matches the fixed lock tongue 13. The movable lock tongue 14 with the above structure can better achieve transmission cooperation with the transmission rod 16, and can smoothly achieve locking or separation with the fixed lock tongue 13.

[0055] In this embodiment, the water inlet 2 is connected to the inner box 5 from the lower end, and the air outlet 3 is connected to the inner box 5 from the upper end, and the water inlet 2 and the air outlet 3 are staggered. The staggered distribution can ensure the connection between the water inlet 2 and the air outlet 3 to balance the air pressure and ensure smooth water inlet and air outlet; secondly, the staggered distribution can prevent sewage from being directly sprayed out from the air outlet 3 without passing through the inner box 5 and the outer box 4, causing the next level of components to be contaminated.

[0056] When the sewage reaches a certain amount, the sewage will overflow the box 1, so an overflow prevention structure is needed, which can automatically stop the operation of the whole machine when the sewage reaches the warning water level. Here is a preferred solution: the box 1 is also provided with a float stopper 30 and a float 31, and the float 31 is movably installed in the float stopper 30, and has a working position state and a non-working position state; it also includes a fixed conductive part 32 and a movable conductive part, the fixed conductive part 32 is arranged on the box 1 or the float stopper 30, and the movable conductive part is arranged on the float 31, and the fixed conductive part 32 is connected to the external circuit; when the float 31 is in the working position state, the movable conductive part is separated from the fixed conductive part 32; when the float 31 is in the non-working position state, the movable conductive part is in contact with the fixed conductive part 32 for conduction. Compared with the prior art, the float 31 itself does not have the function of blocking the air outlet 3, and it only serves as a carrier with a position change function to carry the movable conductive part. The fixed conductive part 32 and the movable conductive part replace the function of the float 31 in the existing product. When the fixed conductive part 32 contacts the movable conductive part, the circuit of the corresponding section is turned on to feedback that the sewage tank is at the warning water level, so as to shut down the electrical components (such as the suction motor) through the external circuit, thereby preventing the sewage from continuing to enter the tank 1.

[0057] The working principle of the present invention is as follows: when the sewage tank needs to be cleaned after use, the inner tank 5 and the outer tank 4 are separated and the inner tank 5 is lifted, at which time the dirty liquid in the inner tank 5 all falls into the outer tank 4, and the solid dirt remains in the inner tank 5. Then the user can clean the outer tank 4 and the inner tank 5 respectively, wherein the dirty liquid in the outer tank 4 can be directly dumped to the outside. On the other hand, since the solid dirt is intercepted in the inner tank 5, only the solid dirt is left in the inner tank 5, so the user presses the button 15, the button 15 drives the transmission rod 16 to move, the transmission rod 16 drives the movable lock tongue 14 to move, the state of the movable lock tongue 14 and the fixed lock tongue 13 is switched from the locked state to the separated state, the movable end 12 of the cover 6 is freely flipped down under the action of gravity, and the solid dirt falls out of the inner tank 5 to the outside (for example, into a trash can). Therefore, in the above-mentioned processing process, the function of solid-liquid separation is realized, and the dirt and dirty liquid in the sewage tank will not block the pipeline.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment according to the technical essence of the invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A solid-liquid separation structure for a sewage tank, characterized in that: include: The box body (1) is provided with a water inlet (2) and an air outlet (3), wherein the water inlet (2) and the air outlet (3) are interconnected to ensure an unobstructed air passage; An outer box liner (4) formed on the box body (1) and used to contain dirty liquid; An inner box (5) which is detachably disposed in the outer box (4) and docked with the water inlet (2) for containing solid waste; a cover (6) arranged at the bottom of the inner box liner (5), the cover (6) being provided with a plurality of sieve holes (7), a separation gap (8) being formed between the cover (6) and the bottom of the outer box liner (4), and the cover (6) being able to have an open state and a closed state relative to the inner box liner (5); A driving device (9) for driving the cover (6) so that the cover (6) switches between an open state and a closed state; The sealing cover (6) has a fixed end (11) and a movable end (12), wherein the fixed end (11) is rotatably connected to the inner box (5), and the movable end (12) can be locked with or separated from the inner box (5); The driving device (9) comprises a fixed locking tongue (13) arranged on the cover (6), a movable locking tongue (14) arranged on the inner box (5), and a driving member acting on the movable locking tongue (14); When the movable locking tongue (14) and the fixed locking tongue (13) are locked with each other, the sealing cover (6) is in a closed state relative to the inner box (5); When the driving member drives the movable locking tongue (14) to separate from the fixed locking tongue (13), the movable end (12) of the cover (6) freely falls down under the action of gravity to be in an open state relative to the inner box (5); The driving member comprises a button (15) and a transmission rod (16); the transmission rod (16) has an input end (17) and an output end (18); the button (15) is movably arranged on the inner box (5) and can be transmission-connected with the input end (17) of the transmission rod (16); the output end (18) of the transmission rod (16) can contact with the movable lock tongue (14) and drive the movable lock tongue (14) to move; The driving member further comprises a reset component, and the reset component enables the movable lock tongue (14) to have a movement tendency to always approach the fixed lock tongue (13); The reset assembly comprises a first spring (19) acting on the movable locking tongue (14), a second spring (20) acting on the transmission rod (16), and a third spring (21) acting on the button (15); The water inlet (2) is connected to the inner box (5) from the lower end, and the air outlet (3) is connected to the inner box (5) from the upper end, and the water inlet (2) and the air outlet (3) are staggered.

2. The solid-liquid separation structure of the sewage tank according to claim 1, characterized in that: The button (15), the transmission rod (16), and the movable locking tongue (14) are arranged in sequence from top to bottom on the outer wall of the inner box (5); The button (15) is arranged horizontally, and the inner end of the button (15) has an inclined driving end surface (22). The transmission rod (16) is arranged vertically, and the input end (17) of the transmission rod (16) has an inclined force-bearing end surface (23) that is adapted to the driving end surface (22).

3. The solid-liquid separation structure of the sewage tank according to claim 1, characterized in that: The transmission rod (16) is also provided with a guide groove (25), and the outer wall of the inner box (5) is provided with a limiting member (26), and the limiting member (26) is inserted into the guide groove (25).

4. The solid-liquid separation structure of the sewage tank according to claim 1, characterized in that: The movable locking tongue (14) is rotatably connected to the inner box (5) via a first rotating shaft (27); one side of the movable locking tongue (14) has a driving position (28) that matches with the output end (18) of the transmission rod (16); and the other side of the movable locking tongue (14) has a hook (29) that matches with the fixed locking tongue (13).

5. The solid-liquid separation structure of the sewage tank according to claim 1, characterized in that: The housing (1) is further provided with a floating body stopper (30) and a floating body (31), wherein the floating body (31) is movably installed in the floating body stopper (30) and has a working position state and a non-working position state; It also includes a fixed conductive part (32) and a movable conductive part, wherein the fixed conductive part (32) is arranged on the box (1) or the floating body limiting part (30), the movable conductive part is arranged on the floating body (31), and the fixed conductive part (32) is connected to an external circuit; When the float (31) is in a working position, the movable conductive part is separated from the fixed conductive part (32); when the float (31) is in a non-working position, the movable conductive part is in contact with the fixed conductive part (32) for conduction.

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