阅读说明：本技术 一种储液箱及表面清洁设备 (Liquid storage tank and surface cleaning equipment ) 是由 唐成 钟亮 段飞 于 2021-02-25 设计创作，主要内容包括：本发明涉及一种储液箱及表面清洁设备,其中,所述储液箱包括箱体、活动分隔件及空气过滤器,箱体上开设有气液吸口和进出液口；活动分隔件包括主体和与主体连接的密封刮件,活动分隔件通过主体将箱体内腔分隔成清洁溶液腔和液体收集腔,进出液口与清洁溶液腔连通,气液吸口与液体收集腔连通。当活动分隔件在箱体内腔朝液体收集腔的方向移动时,密封刮件刮擦箱体内的壁表面,从而能够在实现密封的同时,还能够对被污水污染的壁表面进行刮擦,实现清洁功能,防止二次污染,从而解决了清洁溶液与污水共用空间所导致的二次污染的问题。(The invention relates to a liquid storage tank and surface cleaning equipment, wherein the liquid storage tank comprises a tank body, a movable separator and an air filter, and a gas-liquid suction port, a liquid inlet and a liquid outlet are formed in the tank body; the movable separating part comprises a main body and a sealing scraper connected with the main body, the movable separating part divides the inner cavity of the box body into a cleaning solution cavity and a liquid collecting cavity through the main body, the liquid inlet and outlet is communicated with the cleaning solution cavity, and the gas-liquid suction port is communicated with the liquid collecting cavity. When the movable separator moves towards the direction of the liquid collecting cavity in the inner cavity of the box body, the sealing scraping piece scrapes the wall surface in the box body, so that the sealing effect can be realized, meanwhile, the wall surface polluted by sewage can be scraped, the cleaning function is realized, the secondary pollution is prevented, and the problem of secondary pollution caused by a cleaning solution and a sewage shared space is solved.)

1. A liquid storage tank, comprising:

the box body is internally provided with a box body inner cavity, the box body is provided with a gas-liquid suction port and a liquid inlet and outlet, and the gas-liquid suction port and the liquid inlet and outlet are respectively communicated with the box body inner cavity;

the movable partition comprises a main body and a sealing scraper connected with the main body, the movable partition divides the inner cavity of the box body into a cleaning solution cavity and a liquid collecting cavity through the main body, the liquid inlet and outlet is communicated with the cleaning solution cavity, and the gas-liquid suction port is communicated with the liquid collecting cavity; wherein the sealing scraper is in sealing sliding connection with the wall surface in the box body, so that when the movable partition moves towards the direction of the cleaning solution cavity in the box body inner cavity, gas-liquid separation is kept between the cleaning solution cavity and the liquid collecting cavity; the sealing scraper scrapes contaminants attached to a wall surface inside the tank body when the movable partition moves in the direction of the liquid collection chamber inside the tank body; and the number of the first and second groups,

and the air filter is communicated with the liquid collecting cavity and is used for filtering the gas-liquid mixture from the gas-liquid suction opening.

2. A liquid storage tank according to claim 1 further comprising a suction port connection tube, a first end of said suction port connection tube abutting said gas-liquid suction port; a second end of the suction port connecting pipe, which is opposite to the first end, extends into the liquid collecting cavity; the gas-liquid mixture from the gas-liquid suction port can enter the liquid collecting chamber through the suction port connecting pipe, and the wall surface includes an inner wall surface of the tank and/or an outer wall surface of the suction port connecting pipe.

3. A liquid storage tank according to claim 2 wherein a second end of said suction port connection tube is adjacent said air filter.

4. A tank according to claim 3 wherein the liquid collection chamber is above the movable partition and the cleaning solution chamber is below the movable partition; the gas-liquid suction port is arranged at the bottom of the box body, the air filter is arranged at the top end of the liquid collecting cavity, and the second end of the suction port connecting pipe extends upwards into the liquid collecting cavity.

5. A tank according to claim 4 wherein the body of the movable partition member is a ring-shaped body which is capable of reciprocating along the suction port connection pipe; the sealing scraping piece comprises a first sealing scraping piece and a second sealing scraping piece, and the first sealing scraping piece is connected to the inner ring of the annular main body and is in sliding sealing fit with the outer wall surface of the suction port connecting pipe; the second sealing scraper is connected to the outer ring of the annular main body and is in sliding sealing fit with the surface of the inner wall of the box body.

6. The reservoir of claim 5, wherein said first sealing scraper includes at least a first flange extending in a direction toward said air filter; the second sealing scraper at least comprises a second flanging, and the second flanging extends towards the direction of the air filter.

7. The reservoir of claim 6, wherein said body includes a receiving portion connected to said first flange, said receiving portion being located on an upper surface of said body for receiving contaminants scraped by said first flange when said moveable partition is moved within said body cavity in a direction toward said liquid collection chamber.

8. The reservoir of claim 6, wherein the first sealing scraper further comprises at least one third flange extending radially of the body.

9. A tank according to any one of claims 1 to 8 further comprising a drive mechanism coupled to the body of the moveable partition for urging the moveable partition in the direction of the liquid collection chamber so that the moveable partition scrapes contaminants adhering to the wall surface within the tank through the sealing scraper during movement.

10. A tank according to claim 9 wherein the drive mechanism comprises a pull member having a first end connected to the body of the moveable partition and a second end provided with an external force applying portion for transmitting an external force pulling the moveable partition from the second end to the first end to move the moveable partition in the direction of the liquid collection chamber.

11. A surface cleaning apparatus comprising a floor brush base, a fluid pump disposed in the floor brush base, a suction source and a tank according to any one of claims 1 to 10; the suction source is arranged above the liquid storage tank and communicated with the liquid collecting cavity, and the liquid storage tank is arranged above the floor brush seat; the liquid inlet and outlet is communicated with the fluid pump for distributing cleaning solution to the surface to be cleaned, the gas-liquid suction port is communicated with the ground brush seat through a gas-liquid communicating pipe for recovering polluted liquid from the surface to be cleaned, the liquid collecting cavity is enlarged as the polluted liquid is received, and the cleaning solution cavity is reduced as the cleaning solution is distributed.

Technical Field

The invention relates to the technical field of electrical equipment, in particular to a liquid storage tank and surface cleaning equipment.

Background

Current surface cleaning devices can be used to wet scrub clean hard floors or short hair carpets in general. Such devices typically have one or more rolling brushes or cleaning discs made of a wool material and can scrub tough soils from the floor by adding water or a water/cleaner mixture. When the machine moves over the dirt, the dirt that has been wiped off by the roll brush and dissolved by the water or water/detergent mixture is sucked up by the cleaning heads arranged in the direction of movement of the roll brush, or, in the technique in which the cleaning tray is provided, the cleaning head may not be provided and the dirt is directly sucked up by the cleaning material on the cleaning tray.

However, the tough soil is generally difficult to clean, and after the soil is scattered on the floor surface, water is evaporated to form the tough soil which is difficult to remove on the floor surface. Not all of this stubborn dirt can be removed by the vacuuming operation during scrubbing, with some remaining on the floor, reducing the quality of the cleaning.

In order to improve the cleaning quality, cleaning is usually performed by mixing a cleaning agent and water, the cleaning agent and the water are mixed in a clean water tank of the surface cleaning device according to a certain proportion to form a cleaning fluid, and then the cleaning fluid is applied to a rolling brush or a cleaning disc to achieve a good effect of removing stubborn dirt.

Whether the cleaning device is an autonomous mobile cleaning device or a handheld cleaning device, due to natural limitations of the structure and the volume, the volume of the clean water tank carried by the cleaning device is limited, and the clean water needs to be frequently replaced when a large area is cleaned, particularly when the large area is stained, so that the use experience is greatly influenced.

To the above problem, WO2019157646a1 discloses a dual-purpose water tank and robot of sweeping floor, and it sets up the separator in the water tank body of robot of sweeping floor, the separator will the water tank body is separated for first cavity and second cavity, the separator is followed the inner wall of water tank body removes, in order to adjust the capacity of first cavity and second cavity.

CN106638421B discloses a floor washing machine with a dynamically adjustable water tank volume, which realizes the dynamic adjustment of the clear water volume and the sewage volume of the water tank by setting an adjusting partition plate.

CN111789542A discloses a water tank and a cleaning device, which realizes the integral arrangement of the water tank by arranging a partition plate and a first and a second through hole to adjust the movement of the partition plate.

However, due to the structural limitation of the separator in the prior art, the 'shared space' between the clean water and the polluted water is polluted by the polluted water, and the problem of secondary pollution cannot be solved.

US20140208527a1 discloses an automatic floor sweeping and mopping device, wherein a separation membrane made of a soft and flexible material is used to separate a clean water storage area from a clean water storage area, thereby separating the volumes of the two areas, and the separation membrane can be changed during use, so that the volumes of a sewage area and a clean water area can be changed. Although the problem of secondary pollution can be fundamentally solved, due to the limitation of the service life of the flexible membrane and the natural limitation of the structure, the sufficient sharing of the clean water and the sewage space cannot be ensured, and the service life is also influenced by the separation membrane.

Disclosure of Invention

Technical problem to be solved

In view of the above disadvantages and shortcomings of the prior art, the present invention provides a liquid storage tank and a surface cleaning apparatus, which solve the technical problem of secondary pollution caused by the shared space of cleaning solution and sewage.

(II) technical scheme

In order to achieve the purpose, the invention adopts the main technical scheme that:

in a first aspect, the present invention provides a liquid storage tank comprising:

the box body is internally provided with a box body inner cavity, the box body is provided with a gas-liquid suction port and a liquid inlet and outlet, and the gas-liquid suction port and the liquid inlet and outlet are respectively communicated with the box body inner cavity;

the movable partition comprises a main body and a sealing scraper connected with the main body, the movable partition divides the inner cavity of the box body into a cleaning solution cavity and a liquid collecting cavity through the main body, the liquid inlet and outlet is communicated with the cleaning solution cavity, and the gas-liquid suction port is communicated with the liquid collecting cavity; wherein the sealing scraper is in sealing sliding connection with the wall surface in the box body, so that when the movable partition moves towards the direction of the cleaning solution cavity in the box body inner cavity, gas-liquid separation is kept between the cleaning solution cavity and the liquid collecting cavity; the sealing scraper scrapes contaminants attached to a wall surface inside the tank body when the movable partition moves in the direction of the liquid collection chamber inside the tank body; and the number of the first and second groups,

and the air filter is communicated with the liquid collecting cavity and is used for filtering the gas-liquid mixture from the gas-liquid suction opening.

Optionally, the liquid storage tank further comprises a suction port connecting pipe, and a first end of the suction port connecting pipe is butted with the gas-liquid suction port; a second end of the suction port connecting pipe, which is opposite to the first end, extends into the liquid collecting cavity; the gas-liquid mixture from the gas-liquid suction port can enter the liquid collecting chamber through the suction port connecting pipe, and the wall surface includes an inner wall surface of the tank and/or an outer wall surface of the suction port connecting pipe.

Optionally, the second end of the suction port connection tube is proximate to the air filter.

Optionally, the liquid collecting cavity is arranged above the movable partition, and the cleaning solution cavity is arranged below the movable partition; the gas-liquid suction port is arranged at the bottom of the box body, the air filter is arranged at the top end of the liquid collecting cavity, and the second end of the suction port connecting pipe extends upwards into the liquid collecting cavity.

Optionally, the main body of the movable partition is an annular main body, and the annular main body is capable of reciprocating along the suction port connection pipe; the sealing scraping piece comprises a first sealing scraping piece and a second sealing scraping piece, and the first sealing scraping piece is connected to the inner ring of the annular main body and is in sliding sealing fit with the outer wall surface of the suction port connecting pipe; the second sealing scraper is connected to the outer ring of the annular main body and is in sliding sealing fit with the surface of the inner wall of the box body.

Optionally, the first sealing scraper comprises at least a first bead extending in the direction of the air filter; the second sealing scraper at least comprises a second flanging, and the second flanging extends towards the direction of the air filter.

Optionally, the main body includes a receiving portion connected to the first flange, the receiving portion being located on an upper surface of the main body, the receiving portion being configured to receive contaminants scraped off by the first flange when the movable partition is moved in the direction of the liquid collection chamber in the tank interior.

Optionally, the first sealing scraper further comprises at least one third bead extending in a radial direction of the main body.

Optionally, the tank further comprises a drive mechanism coupled to the main body of the movable partition for causing the movable partition to move in the direction of the liquid collection chamber such that contaminants adhering to the wall surface within the tank are scraped by the sealing scraper during movement of the movable partition.

Optionally, the driving mechanism includes a pulling member, a first end of the pulling member is connected to the main body of the movable partition, and a second end of the pulling member is provided with an external force applying portion for transmitting an external force for pulling the movable partition from the second end to the first end, so that the movable partition moves toward the liquid collecting chamber.

In a second aspect, the present invention provides a surface cleaning apparatus comprising a floor brush holder, a fluid pump disposed in the floor brush holder, a suction source and a reservoir as described above; the suction source is arranged above the liquid storage tank and communicated with the liquid collecting cavity, and the liquid storage tank is arranged above the floor brush seat; the liquid inlet and outlet is communicated with the fluid pump for distributing cleaning solution to the surface to be cleaned, the gas-liquid suction port is communicated with the ground brush seat through a gas-liquid communicating pipe for recovering polluted liquid from the surface to be cleaned, the liquid collecting cavity is enlarged as the polluted liquid is received, and the cleaning solution cavity is reduced as the cleaning solution is distributed.

(III) advantageous effects

The invention has the beneficial effects that: according to the liquid storage tank, one water tank is omitted, the liquid collecting cavity and the cleaning solution cavity are combined into a whole, and the volumes of the cleaning solution cavity and the liquid collecting cavity can be increased under the condition that the size of the whole liquid storage tank is not changed. The flexibility of equipment operation is guaranteed, the cleaning area of a user can be effectively increased, the possibility that the user adds water in the cleaning process is reduced, the trouble that the user needs to stop to add water in the whole house cleaning process is avoided, the intervention and maintenance of the user in the use process are reduced, and the user experience is improved.

The sealing scraper is connected with the surface of the wall in the box body in a sealing and sliding way, so that the cleaning solution cavity and the liquid collecting cavity are kept separated by gas and liquid; when the movable separator moves towards the direction of the liquid collecting cavity in the inner cavity of the box body, the sealing scraping piece scrapes the wall surface in the box body, so that the sealing effect can be realized, meanwhile, the wall surface polluted by sewage can be scraped, the cleaning function is realized, the secondary pollution is prevented, and the problem of secondary pollution caused by a cleaning solution and a sewage shared space is solved.

Drawings

FIG. 1 is a schematic cross-sectional view of a surface cleaning apparatus of the present invention;

FIG. 2 is a schematic cross-sectional view of one embodiment of a reservoir of the present invention;

FIG. 3 is a schematic cross-sectional view of the tank of FIG. 2 in a clean state;

FIG. 4 is a schematic cross-sectional view of the tank of FIG. 2 in a water-filled state;

fig. 5 is an enlarged schematic view of a partial structure of the partitioning member of fig. 2;

FIG. 6 is a schematic cross-sectional view of another embodiment of a tank of the present invention;

fig. 7 is a schematic cross-sectional view of the tank of fig. 6 after the cleaning solution in the flexible bag has been used.

[ description of reference ]

10: a box body; 11: a liquid collection chamber; 12: cleaning the solution chamber: 121: a first liquid inlet and outlet; 122: a connecting cover; 20: a movable partition; 21: drawing the piece; 22: a main body; 231: a first flanging; 232: second flanging; 233: third flanging; 234: a fourth flanging; 24: a receiving portion; 30: a suction port connecting pipe; 31: a gas-liquid suction port; 40: an air filter; 50: an elastic bag; 51: a second liquid inlet and outlet;

100: a liquid storage tank; 200: a floor brush base; 201: a fluid pump; 202: rolling and brushing; 203: a gas-liquid communicating pipe; 300: a source of suction; 400: a handle.

Detailed Description

For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings. In which the terms "upper", "lower", etc. are used herein with reference to the orientation of fig. 1.

The invention provides a liquid storage tank 100, as shown in fig. 2 to 4, comprising a tank body 10 and a movable separator 20, wherein the tank body 10 comprises a tank body inner cavity, the tank body 10 is provided with a gas-liquid suction port 31 and a liquid inlet and outlet, and the gas-liquid suction port 31 and the liquid inlet and outlet are respectively communicated with the tank body inner cavity. The movable separating part 20 comprises a main body 22 and a sealing scraper connected with the main body 22, the inner cavity of the box body is divided into a cleaning solution cavity 12 and a liquid collecting cavity 11 by the movable separating part 20 through the main body 22, a liquid inlet and a liquid outlet are communicated with the cleaning solution cavity 12, and a gas-liquid suction port 31 is communicated with the liquid collecting cavity 11. Wherein the sealing scraper is in sealing sliding connection with the wall surface in the box body 10, so that when the movable partition 20 moves towards the cleaning solution cavity 12 in the box body inner cavity, gas-liquid separation is kept between the cleaning solution cavity 12 and the liquid collecting cavity 11; the sealing scraper scrapes the wall surface inside the tank 10 when the movable partition 20 moves in the direction of the liquid collection chamber 11 inside the tank. Wherein the cleaning solution chamber 12 is used for storing a cleaning solution, for example, clean water; the liquid collection chamber 11 is used to store liquid, such as sewage, after cleaning of the surface to be cleaned.

Through clean water and sewage sharing a box 10, the occupied space of clean water diminishes along with the consumption of clean water in the use, transfers the space that vacates to liquid collection chamber 11 to realize the increase of liquid collection chamber 11 storage space. Because a water tank is omitted, the liquid collecting cavity 11 and the cleaning solution cavity 12 are combined into a whole, and the volumes of the cleaning solution cavity 12 and the liquid collecting cavity 11 can be increased under the condition of keeping the size of the whole equipment unchanged. The flexibility of equipment operation is guaranteed, the cleaning area of a user can be effectively increased, the possibility that the user adds water in the cleaning process is reduced, the trouble that the user needs to stop to add water in the whole house cleaning process is avoided, the intervention and maintenance of the user in the use process are reduced, and the user experience is improved.

And, the sealing scraper is connected with the wall surface in the box body 10 in a sealing and sliding way, so that the gas-liquid separation is kept between the cleaning solution cavity 12 and the liquid collecting cavity 11; when the movable partition member 20 moves in the direction of the liquid collection chamber 11 in the inner chamber of the tank, the sealing scraper scrapes the wall surface in the tank 10, so that the wall surface polluted by sewage can be scraped while sealing is realized, a cleaning function is realized, secondary pollution is prevented, and the problem of secondary pollution caused by a shared space of cleaning solution and sewage is solved ingeniously.

Furthermore, the liquid storage tank 100 further includes a suction port connection pipe 30, a first end of the suction port connection pipe 30 is abutted against the gas-liquid suction port 31 and a second end of the suction port connection pipe 30 opposite to the first end extends into the liquid collection chamber 11, and a gas-liquid mixture from the gas-liquid suction port 31 can enter the liquid collection chamber 11 through the suction port connection pipe 30. Wherein the wall surface includes an inner wall surface of the cabinet 10 and/or an outer wall surface of the suction port connection pipe. Since the suction port connection pipe 30 is extended from the gas-liquid suction port 31 into the inside of the liquid collecting chamber 11, when the tank 10 is inclined during use, the sewage is not easily leaked from the inside of the tank 10. Specifically, in the preferred embodiment, the gas-liquid suction port 31 is provided at the bottom of the casing 10, the top end of the liquid collection chamber 11 is the air outflow port, and the suction port connection tube 30 extends upward into the liquid collection chamber 11. When the suction source 300 is provided at the air outflow end of the liquid collection chamber 11, the sewage and air can be introduced into the liquid collection chamber 11 through the gas-liquid suction port 31 and the suction port connection pipe 30 (see arrow B in fig. 2) by the suction source 300, while the sewage can remain in the liquid collection chamber 11 and be collected outside the suction port connection pipe 30, and the air introduced into the liquid collection chamber 11 is discharged through the air outflow end (see arrow C in fig. 2). Wherein the height of the suction port connection pipe 30 may determine the maximum volume of the contaminated water.

Referring again to fig. 2 to 4, the liquid storage tank 100 further includes an air filter 40, the air filter 40 is communicated with the liquid collection chamber 11, the air filter 40 is used for filtering the air-liquid mixture from the air-liquid suction port 31, so that the filtered air is discharged from the tank body 10, and the sewage is separated from the air and left in the liquid collection chamber 11. Wherein, the second end of the suction port connection pipe 30 is close to the air filter 40, so that the gas-liquid mixture entering into the suction port connection pipe 30 can be directly sent to the air filter 40 for filtering, thereby ensuring the gas-liquid separation effect.

Wherein, a liquid collecting cavity 11 is arranged above the movable isolating piece 20, and a cleaning solution cavity 12 is arranged below the movable isolating piece 20; the gas-liquid suction port 31 is provided at the bottom of the casing 10, the air filter 40 is provided at the top end of the liquid collection chamber 11, and the second end of the suction port connection pipe 30 extends upward into the liquid collection chamber 11 and is close to the air filter 40. Clean water discharges gradually in the clean solution chamber 12 in order to be used for treating clean surface and cleans, clean water has become sewage after clean treating clean surface, sewage can get into liquid collection chamber 11 through the gas-liquid suction port 31 of bottom and through suction port connecting pipe 30 in so that clean solution chamber 12 forms the negative pressure, and form the malleation in the liquid collection chamber 11, activity barrier member 20 can move down under the positive and negative pressure effect, clean solution chamber 12 space diminishes gradually, liquid collection chamber 11 space grow gradually, realize clean water storage space and sewage storage space's transfer.

As shown in fig. 2 and 5, the main body 22 of the movable partition 20 is a ring-shaped main body, and the ring-shaped main body can reciprocate along the mouthpiece connecting pipe 30; the sealing scrapers include a first sealing scraper attached to the inner ring of the ring-shaped main body and in sliding sealing engagement with the outer wall surface of the suction port connecting pipe 30; the second sealing wiper is attached to the outer ring of the ring-shaped body and is in sliding sealing engagement with the inner wall surface of the case 10. Wherein, the gas-liquid isolation between cleaning solution chamber 12 and the liquid collection chamber 11 has been realized to the sealed scraper of first sealed scraper and the sealed scraper of second cooperation jointly to through the motion of annular main part, first sealed scraper can be cleaned the outer wall surface of suction inlet connecting pipe 30, and the sealed scraper of second can also clean the inner wall surface of box 10, has reduced the degree of difficulty of the clean box 10 of user, simultaneously can also reduce cost.

As shown in fig. 5, the first sealing scraper includes at least a first flange 231, the first flange 231 extends toward the air cleaner 40, and a free end of the first flange 231 is in sealing engagement with an outer wall surface of the mouthpiece connecting pipe 30; the second sealing scraper at least comprises a second flange 232, the second flange 232 extends towards the air filter 40, and the free end of the second flange 232 is in sealing fit with the inner wall surface of the box body 10. The first flange 231 and the second flange 232 may be rubber or silicone, and have certain elasticity. When the ring-shaped body moves in the direction of the cleaning solution chamber 12 (i.e., downward) in the tank inner chamber, the first and second flanges 231 and 232 are both in an extended state following the movement of the ring-shaped body, and the gas-liquid separation is maintained between the cleaning solution chamber 12 and the liquid collection chamber 11. When the ring-shaped body moves in the direction of the liquid collection chamber 11 (i.e., upward) in the inner chamber of the tank, the first and second burring edges 231 and 232 are pressed to scrape the outer wall surface of the suction port connection pipe 30 and the inner wall surface of the tank 10, thereby accomplishing the sealing function while also accomplishing the cleaning of the space shared by the cleaning solution and the sewage.

In addition, referring again to fig. 5, the main body 22 further includes a receiving portion 24 connected to the first flange 231, the receiving portion 24 is located on the upper surface of the main body 22, and when the movable partition member 20 moves in the direction of the liquid collection chamber in the inner chamber of the tank, the receiving portion 24 is used for receiving the contaminants scraped by the first flange 231, so that the contaminants can be prevented from spreading and the scraped contaminants can be easily cleaned. Also, since the receiving portion 24 is located on the upper surface of the main body 22, the receiving portion 24 can also store sludge deposited in the sewage. When the tank 10 is disassembled and cleaned, the main body 22 can be taken out from the top end of the tank 10, and after the main body 22 is cleaned by dumping sludge, the main body 22 can be installed back into the tank 10. Alternatively, referring again to fig. 2, the body 22 of the moveable partition 20 may be formed in cross-section as a concave surface, i.e., an annular recess formed in the annular body. The provision of this annular groove can reduce the weight of the annular main body, but does not reduce the corresponding area between the outer wall surface of the annular main body and the inner wall surface of the casing 10 or between the inner wall surface of the annular main body and the suction port connecting pipe 30, thereby ensuring the sealing effect.

Further, in order to enhance the sealing and scraping effects, the first sealing scraper further includes a third burring 233, the third burring 233 extending in a radial direction of the main body 22; the second sealing scraper further comprises a fourth bead 234, the fourth bead 234 extending in a radial direction of the main body 22. Multiple flanges are arranged on the inner side and the outer side of the main body 22, so that the movable sealing effect can be improved, clean water cannot leak into the liquid collecting cavity 11, and sewage cannot leak into the cleaning solution cavity 12. Moreover, the multiple flanging during wall surface scraping means that multiple scraping can also be achieved, so that the sealing and scraping effects are both significantly improved.

In one embodiment, the tank may further comprise a drive mechanism coupled to the main body 22 of the moveable partition 20 for urging the moveable partition 20 towards the liquid collection chamber 11 so that the moveable partition 20 scrapes contaminants adhering to the wall surface of the tank body by the sealing scrapers during movement. The main body 22 is driven to reciprocate in the box 10 by a driving mechanism (for example, a combination of a motor and a screw nut, a cylinder or an electric push rod, etc.), one end of the driving mechanism is connected with the main body 22, and the other end of the driving mechanism can be fixed on the top of the box 10, so that the position of the main body 22 can be controlled under the driving of the driving mechanism, the human intervention in the cleaning process is reduced, and the use experience of a user is improved.

In addition, the driving mechanism further includes a drawing member 21, a first end of the drawing member 21 is connected with the main body 22 of the movable partition 20, and a second end of the drawing member 21 is provided with an external force applying part for transmitting an external force for drawing the movable partition 20 from the second end to the first end, thereby moving the movable partition 20 toward the liquid collecting chamber 11. The driving mechanism is exemplified by a cylinder, one end of the cylinder is connected with the second end of the pulling member 21, and the other end of the cylinder can be fixed on the top of the box body 10, so that the position of the pulling member 21 can be controlled under the driving of the cylinder. In a specific cleaning process, the cylinder may pull the main body 22 from the bottom of the tank 10 to the top of the tank 10 (see the structure shown as 20' in fig. 3), and the first and second flanges 231 and 232 are pressed to scrape the outer wall surface of the suction port connection pipe 30 and the inner wall surface of the tank 10, thereby accomplishing the cleaning of the clean water and sewage shared space while achieving the sealing function.

Alternatively, in addition to the above-described mechanical power method for driving the main body 22 to move in the housing 10, in other embodiments, the main body 22 may be driven to move in the housing 10 manually. Since the bottom of the box 10 is a bottom wall, but the top end of the box 10 is provided with a detachable suction source 300 or other structures, and the ring-shaped main body is provided with a pulling member 21 on the upper surface, a user can reach into the box 10 from the top end of the box 10 to operate the pulling member 21 on the ring-shaped main body, and the pulling member 21 is used for moving the movable partition member 20 to the liquid collection chamber 11. Referring to fig. 3, when it is required to clean the wall surface inside the cabinet 10, the ring-shaped body may be dragged by holding the drawing member 21. The annular main body can clean the pollutants attached to the wall surface in the box body 10 by reciprocating for several times, and the operation is convenient, time-saving and labor-saving. In particular, the puller 21 may be arranged in an annular groove to facilitate removal and mounting.

Also, in order to prevent the ring body from being separated from the upper end of the suction port connection pipe 30 when clean water is added, the moving stroke of the ring body may be limited in various ways, for example, by providing a limit protrusion on the inner wall surface of the casing 10, or by providing a limit rod between the ring body and the top of the casing 10, etc., but the limit protrusion may affect the cleaning of the inner wall surface of the casing 10 by the ring body, and the limit rod requires additional manufacturing costs. In a more preferred embodiment, the ring-shaped body may be limited by the length setting of the drawing member 21 itself, and particularly, the length of the drawing member 21 is extended so that the top end of the drawing member 21 is close to the top end of the liquid collecting chamber 11 when the cleaning solution chamber 12 reaches the highest water level, or the top end of the drawing member 21 can directly abut against the structure at the top end of the liquid collecting chamber 11, thereby preventing the ring-shaped body from being detached from the suction port connection pipe 30 when the water is purified.

In the embodiment where the movable partition 20 is an annular main body, the liquid inlet/outlet is a first liquid inlet/outlet 121 in fig. 4, the first liquid inlet/outlet 121 is located at the bottom of the cleaning solution chamber 12, a connection cover 122 is disposed on the first liquid inlet/outlet 121, and the connection cover 122 can be connected to the fluid pump 201. When clean water is added, the tank 10 is first placed upside down (see the state shown in fig. 4), and the connection cover 122 of the cleaning solution chamber 12 is opened to align with the faucet to add water. Then, the connection cover 122 is tightly covered on the first liquid inlet/outlet 121 in a sealing manner by a screw thread or an interference fit manner, and then the box body 10 is vertically installed. In which the connection cap 122 is connected to the fluid pump 201, not only the leakage of clean water from the connection cap 122 can be prevented, but also the clean water can be discharged to the surface to be cleaned through the fluid pump 201 as required, and the flow direction of the clean water is shown by the arrow a in fig. 2. The fluid pump 201 may be a water pump or other device capable of pumping fluid.

In another embodiment, as shown in fig. 6 and 7, the separation of the liquid collection chamber 11 from the cleaning solution chamber 12 may be performed by an elastic bag 50, the cleaning solution chamber 12 is disposed inside the elastic bag 50, and the liquid collection chamber 11 is disposed outside the elastic bag 50. After clean water is filled, the elastic bag 50 is opened, and as water is gradually used, the elastic bag 50 is contracted to transfer the space to the liquid collection chamber 11, thereby realizing the transfer of the clean water storage space and the sewage storage space. The elastic bag 50 may be a rubber bag or a relatively firm plastic bag, as long as clean water storage and self volume change can be achieved.

In the embodiment shown in fig. 6 and 7, the liquid inlet and outlet is the second liquid inlet and outlet 51 in fig. 6 and 7. In order to facilitate the addition of clean water, the second liquid inlet/outlet 51 is located at the top of the elastic bag 50, and the second liquid inlet/outlet 51 can be connected with the fluid pump 201 through a connecting pipe. When water is added, water can be directly added from the opening of the top cover. Clean water may be added to the flexible bag 50 (i.e., cleaning solution chamber 12) after the top lid is opened, and during use, clean water in the flexible bag 50 may be pumped by the fluid pump 201 to the surface to be cleaned to assist in cleaning the surface.

Further, as shown in fig. 1, the present invention also provides a surface cleaning apparatus, which comprises a floor brush base 200, a fluid pump 201 disposed in the floor brush base 200, a suction source 300, and the above-mentioned liquid storage tank 100. The suction source 300 is arranged above the liquid storage tank 100 and communicated with the liquid collection cavity 11, and the liquid storage tank 100 is arranged above the floor brush seat 200; the liquid inlet and outlet port communicates with a fluid pump 201 for dispensing the cleaning solution to the surface to be cleaned, and the gas-liquid suction port 31 communicates with the floor brush holder 200 through a gas-liquid communicating tube 203 for recovering the contaminated liquid from the surface to be cleaned. The liquid collecting cavity 11 is enlarged along with the received polluted liquid, and the cleaning solution cavity 12 is reduced along with the distribution of the cleaning solution, so that the volume of the equipment can be reduced, the cleaning area of a user can be effectively increased, the possibility of water adding of the user in the cleaning process is reduced, the trouble that the user needs to stop to add water in the whole house cleaning process is avoided, the intervention and maintenance of the user in the using process are reduced, and the user experience is improved. The suction source 300 may be a fan, a suction pump, or other devices capable of generating suction. In addition, a handle 400 can be arranged on one side of the suction source 300, and the whole machine is formed into a vertical bar-shaped device, so that the use flexibility of a user can be improved, and narrow corners can be conveniently cleaned.

Wherein, a floor brush 202 is arranged in the floor brush base 200, a water spraying system communicated with the fluid pump 201 is arranged on the floor brush 202, and the water spraying system sprays clean water in the cleaning solution cavity 12 to the floor brush 202 or the ground. The suction nozzle in the floor brush holder 200 is adjacent to the fluid present on the surface to be cleaned, and is connected to the suction nozzle connecting pipe 30 through the gas-liquid communicating pipe 203. The suction attachment tube 30 is further fluidly connected to a suction source 300 via a liquid collection chamber 11, and the exhaust from the suction source 300 is vented to atmosphere, thereby completing the circulation of air and water between the surface cleaning apparatus and the environment.

Referring again to fig. 1, the surface cleaning apparatus further comprises an air filter 40 disposed between the suction source 300 and the liquid collection chamber 11, whereby sewage and air drawn into the liquid collection chamber 11 by the suction source 300 can be separated by the air filter 40, and only filtered clean air is expelled from the apparatus to reduce environmental pollution. The suction nozzle in the floor brush holder 200 is placed adjacent to the surface to be cleaned and applies suction to draw liquid and debris from the surface to be cleaned. The air filter 40 provides a means by which liquids, such as dirty cleaning solution, including any particulate matter drawn through the suction nozzle, are separated from the exhaust flow.

Further, in a more preferred embodiment, when the top of the surface cleaning apparatus is inclined to either side at an angle of not more than 60 °, liquid will not leak from the suction port connection tube 30. Wherein, the contained angle of surface cleaning equipment between the axis of vertical state and the axis of tilt state is inclination. Since the suction port connection pipe 30 is extended from the gas-liquid suction port 31 provided at the bottom of the tank 10 into the inside of the liquid collecting chamber 11, when the surface cleaning apparatus is inclined during use, the sewage is not easily leaked from the inside of the tank 10.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.

In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.