Floor scrubber

Abstract

The present invention provides a floor scrubber, which belongs to the technical field of cleaning equipment. The floor scrubber includes a suction device, a base and a recovery box. The recovery box is arranged in the base. A suction port is arranged at the front end of the base. A gas-liquid separation chamber and a recovery storage chamber are arranged in the recovery box. One end of the gas-liquid separation chamber is connected to the suction port to perform gas-liquid separation on the dirt sucked by the suction port, and the other end is connected to the suction device to discharge the separated waste gas to the outside through the suction device. The recovery storage chamber is connected to the gas-liquid separation chamber to collect the waste liquid after gas-liquid separation. The present invention reduces the weight of the machine body by arranging the recovery box on the base, and the waste liquid in the recovery box will not enter the suction device when the machine body is tilted at a large angle or laid flat. The waste liquid is stored in the recovery storage box and will not flow out.

Description

Technical Field

[0001] The invention relates to a floor scrubber and belongs to the technical field of cleaning equipment. Background Art

[0002] The existing floor scrubber has both the supply tank and the sewage tank arranged on the body, and the body is heavy. When the body is tilted at a large angle or is used flat, the water in the sewage tank will enter the suction source motor, causing the floor scrubber to fail to work normally, or flow back to the ground and dirty the ground. This defect makes the existing floor scrubber unable to clean the ground under the bed or sofa.

[0003] Although there are some floor scrubbers on the market that have a sewage tank placed on the floor brush so that the machine body can be tilted or laid flat at a large angle, this type of floor scrubber usually uses a scraper to scrape the sewage off the roller brush and leave it in a recycling tank. However, the roller brush alone cannot quickly and effectively clean water stains on the cleaning surface, and the cleaning effect is not ideal.

[0004] In view of this, it is necessary to improve the existing floor scrubbers to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a floor scrubber to solve at least one of the problems of existing floor scrubbers, namely, a heavy body, unsatisfactory cleaning effect, and inability to be tilted at a large angle for use.

[0006] To achieve the above-mentioned purpose, the present invention provides a floor scrubber, comprising a suction device, a base and a recovery box, wherein the recovery box is arranged in the base, a suction port is provided at the front end of the base, and a gas-liquid separation chamber and a recovery storage chamber are provided in the recovery box, one end of the gas-liquid separation chamber is connected to the suction port to perform gas-liquid separation on the dirt sucked by the suction port, and the other end is connected to the suction device to discharge the separated waste gas to the outside through the suction device, and the recovery storage chamber is connected to the gas-liquid separation chamber for collecting the waste liquid after gas-liquid separation.

[0007] As a further improvement of the present invention, the recovery box includes a first partition, and the gas-liquid separation chamber and the recovery storage box are separated by the first partition.

[0008] As a further improvement of the present invention, a water outlet is provided on the first partition plate, and the gas-liquid separation chamber is connected with the recovery storage chamber through the water outlet.

[0009] As a further improvement of the present invention, the first partition is arranged to be inclined in the horizontal direction, and the water outlet is arranged at the lowest point of the first partition on the horizontal plane.

[0010] As a further improvement of the present invention, a water inlet is provided on the first partition plate, and the gas-liquid separation chamber is connected with the suction port through the water inlet.

[0011] As a further improvement of the present invention, the first partition is arranged to be inclined in the horizontal direction, and the water inlet is arranged at the highest point of the first partition on the horizontal plane.

[0012] As a further improvement of the present invention, the first partition extends obliquely from the water inlet toward one side of the water outlet.

[0013] As a further improvement of the present invention, the recycling box includes a recycling box body and a connecting cover, the first partition is placed in the recycling box body, the connecting cover includes a second partition, the second partition extends from the connecting cover toward the first partition, and a gap is left between the second partition and the first partition.

[0014] As a further improvement of the present invention, the connecting cover further comprises a partition plate and an exhaust port opened on the partition plate, the second partition plate is connected to the partition plate, and the second partition plate is placed between the water inlet and the exhaust port.

[0015] As a further improvement of the present invention, the partition plate is arranged to be inclined relative to the horizontal plane, and the exhaust port is opened at an end of the partition plate which is lower than the horizontal plane.

[0016] As a further improvement of the present invention, the connecting cover also includes an upper shell, an airflow channel is formed between the partition plate and the upper shell, the airflow channel is connected to the gas-liquid separation chamber through the exhaust port, and the end of the airflow channel away from the exhaust port is connected to the suction device.

[0017] As a further improvement of the present invention, a liquid level limiting structure is also provided in the recovery box, and a through hole corresponding to the exhaust port is opened on the first partition. The liquid level limiting structure passes through the through hole and can slide relative to the first partition. When the waste liquid in the recovery storage chamber increases, the waste liquid can push the liquid level limiting structure to move along the through hole from the recovery storage chamber to the gas-liquid separation chamber, so that the liquid level limiting structure closes the exhaust port.

[0018] As a further improvement of the present invention, a third partition fixedly connected to the first partition is also provided in the gas-liquid separation chamber, and the third partition is located between the second partition and the exhaust port. The third partition is used to prevent dirt entering from the water inlet from approaching the exhaust port.

[0019] As a further improvement of the present invention, the third partition divides the first partition into two areas, namely a first area close to the water inlet and a second area close to the exhaust port. A recovery storage chamber is formed under the first partition, and a water outlet is opened in the first area to connect the gas-liquid separation chamber and the recovery storage chamber.

[0020] The beneficial effects of the present invention are as follows: the present invention reduces the weight of the fuselage by arranging the recovery box on the base, and when the fuselage is tilted at a large angle or laid flat, the waste liquid in the recovery box will not enter the suction device; by arranging a gas-liquid separation chamber in the recovery box, the waste gas and waste liquid flowing into the recovery box are separated, and the waste gas is discharged out of the recovery box through the suction device; in addition, by arranging a recovery storage box connected to the gas-liquid separation chamber, the separated waste liquid can be stored in the recovery storage box, and when the fuselage is tilted at a large angle or laid flat, the waste liquid will not flow out. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of a floor scrubber according to a preferred embodiment of the present invention.

[0022] Figure 2 yes Figure 1 Schematic diagram of the middle base.

[0023] Figure 3 yes Figure 2 Cross-section of the center base.

[0024] Figure 4 yes Figure 2 Schematic diagram of the recycling bin.

[0025] Figure 5 yes Figure 4 A three-dimensional schematic diagram of the recycling bin from another angle.

[0026] Figure 6 yes Figure 4 Cross-section of a recycling bin.

[0027] Figure 7 yes Figure 4 A three-dimensional schematic diagram of the recycling box body.

[0028] Figure 8 yes Figure 4 Schematic diagram of the three-dimensional connection cover.

[0029] Fig. 9 2 is a cross-sectional view of a recovery box according to a second embodiment of the present invention.

[0030] Fig.10 yes Fig. 9 Schematic diagram of the three-dimensional connection cover.

[0031] Fig.11 yes Fig. 9 A three-dimensional schematic diagram of the recycling box body.

[0032] Fig.12 yes Fig. 9 Schematic diagram of the liquid level limiting structure. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] See also Figures 1 to 3 As shown, as the best embodiment of the present invention, the present invention discloses a floor scrubber 100 for cleaning dirt on the ground. The floor scrubber 100 includes a handle 10, a body 20, a connecting shaft 30, a base 40 and a recycling box 50. Specifically, one end of the body 20 is connected to the handle 10, and the other end is connected to the base 40 through the connecting shaft 30. The user can push or pull the floor scrubber 100 through the handle 10 to move the floor scrubber 100 on the surface to be cleaned. The body 20 can rotate relative to the base 40 through the connecting shaft 30 to adapt to the usage habits of different users, and further enable the floor scrubber 100 to clean surfaces to be cleaned at different heights.

[0035] A supply box (not shown) and a suction device (not shown) are provided in the body 20, and a recovery box 50 and a cleaning mechanism 42 are connected to the base 40. The cleaning mechanism 42 is arranged on the front side of the base 40. The supply box is connected to the cleaning mechanism 42 through a pipeline to provide cleaning liquid to the cleaning mechanism 42 for the cleaning mechanism 42 to clean the surface to be cleaned. One end of the recovery box 50 is connected to the suction device and the other end is connected to the cleaning mechanism 42, so that a negative pressure can be generated in the recovery box 50 through the suction device, and then the dirt recovered by the cleaning mechanism 42 is sucked into the recovery box 50, so that the surface to be cleaned is cleaned.

[0036] In the present invention, the specific structure of the handle 10, the specific structure of the body 20, the specific structure of the base 40, the connection method between the handle 10 and the body 20, and the connection method between the body 20 and the base 40 can all be designed according to the existing technology. The following specification will mainly describe in detail the specific structure of the recycling box 50, the connection method between the recycling box 50 and the cleaning mechanism 42, and the connection method between the recycling box 50 and the suction device.

[0037] See also Figures 4 to 8 Combined with Figure 3As shown, the recovery box 50 includes a connection cover 51, a recovery box body 52 connected to the connection cover 51, and a gas-liquid separation structure 54 accommodated in the recovery box 50. The cleaning mechanism 42 is connected to the recovery box body 52 to send dirt into the gas-liquid separation structure 54 for gas-liquid separation, so that waste liquid is stored in the recovery box 50 and waste gas is discharged to the outside of the recovery box 50. The suction device is connected to the connection cover 51 to extract the waste gas in the recovery box 50 from the recovery box 50.

[0038] Specifically, a water inlet 528 is provided in the recovery box body 52, and a confluence piece 41 connected to the water inlet 528 is provided at the bottom of the base 40, and one end of the confluence piece 41 away from the water inlet 528 is provided between the cleaning mechanism 42 and the recovery box 50 and close to the cleaning surface, so that the waste water and waste gas after the cleaning mechanism 42 cleans the surface to be cleaned can be confluent through the confluence piece 41 and flow into the recovery box body 52 through the water inlet 528. The confluence piece 41 includes a suction port 411, which is located at the front end of the base 40 and placed between the cleaning mechanism 42 and the recovery box 50, so that the dirt on the surface to be cleaned enters the gas-liquid separation structure 54 through the suction port 411.

[0039] A connection port 514 is provided on the connection cover 51, and the floor scrubber 100 also includes an exhaust pipe 21, one end of the exhaust pipe 21 is connected to the suction device, and the other end is connected to the inner cavity of the connection cover 51 through the connection port 514 to extract the exhaust gas in the recovery box 50 so that the exhaust gas is discharged from the recovery box 50.

[0040] The recycling box 50 also includes a seal 53. A groove 529 for accommodating the seal 53 is provided on one side of the recycling box body 52 close to the connecting cover 51. The edge of the connecting cover 51 extends into the groove 529 and abuts against the seal 53, so that the connecting cover 51 and the recycling box body 52 are sealed and connected.

[0041] Specifically, the recovery box body 52 includes a lower shell 524, the connecting cover 51 includes an upper shell 515, the groove 529 is arranged on the edge of the lower shell 524 close to the upper shell 515, and the upper shell 515 and the lower shell 524 are sealed and connected by a sealing member 53 to seal the gas-liquid separation structure 54 between the upper shell 515 and the lower shell 524.

[0042] The recycling box 50 is provided with a locking structure 55, and the recycling box body 52 and the connection cover 51 are detachably connected through the locking structure 55. Specifically, one end of the locking structure 55 is connected to the upper shell 515, and the other end is connected to the lower shell 524. When the locking structure 55 is locked, the distance between the upper shell 515 and the lower shell 524 is shortened, and the sealing member 53 is squeezed to deform the sealing member 53, thereby achieving a sealed connection between the upper shell 515 and the lower shell 524. Preferably, two locking structures 55 are provided, which are respectively located on opposite sides of the recycling box 50.

[0043] In this embodiment, the recycling box 50 is detachable. When the waste liquid storage reaches a certain amount, the connecting cover 51 can be removed to clean the waste liquid in the recycling box body 52. ​​Of course, in other embodiments, the recycling box body 52 and the connecting cover 51 can also be integrally formed. In this case, a drain port is directly opened on the recycling box 50 to realize the discharge of waste liquid. There is no limitation here.

[0044] The gas-liquid separation structure 54 includes a gas-liquid separation chamber 542 and a recovery storage chamber 541. One end of the gas-liquid separation chamber 542 is connected to the suction port 411 through the water inlet 528 to perform gas-liquid separation on the dirt sucked in by the suction port 411, and the other end is connected to the suction device through the connecting port 514 to discharge the separated waste gas to the outside through the suction device. The recovery storage chamber 541 is connected to the gas-liquid separation chamber 542 for collecting the waste liquid after gas-liquid separation.

[0045] The recovery box 50 includes a first partition 520, which divides the inner cavity of the recovery box 50 into a gas-liquid separation chamber 542 and a recovery storage chamber 541. A drain port 521 is provided on the first partition 520. The gas-liquid separation chamber 542 is connected to the recovery storage chamber 541 through the drain port 521. When in use, the gas-liquid separation chamber 542 separates waste gas and waste liquid, and the waste gas is discharged to the outside of the recovery box 50 through a suction device, and the waste liquid flows into the recovery storage chamber 541 through the drain port 521 for storage.

[0046] In the present invention, the gas-liquid separation chamber 542 is located above the first partition 520, the recovery storage chamber 541 is located below the first partition 520, and the drain outlet 521 is opened on the first partition 520 and is located at the lowest point in the gas-liquid separation chamber 542. Of course, in other embodiments, the gas-liquid separation chamber 542 and the recovery storage chamber 541 can also be arranged in parallel or staggered, so that the recovery box 50 can achieve gas-liquid separation and waste liquid storage, and there is no limitation here.

[0047] A water inlet 528 is provided in the recovery box body 52. ​​Specifically, the water inlet 528 is opened on the first partition 520. The first partition 520 is horizontally placed in the recovery box body 52 and fixedly connected to the lower shell 524. There is at least one water outlet 521 and it is located at the edge of the first partition 520.

[0048] Preferably, the first partition 520 is inclined in the horizontal direction, the water inlet 528 is arranged at the middle position of one side edge of the first partition 520, and is arranged at the highest point of the first partition 520 on the horizontal plane, and the drain outlet 521 is arranged at the lowest point of the first partition 520 on the horizontal plane, that is, the first partition 520 extends obliquely from the water inlet 528 toward the drain outlet 521, so that the waste liquid entering from the water inlet 528 can be gathered along the first partition 520 to the drain outlet 521, and then stored in the recovery storage chamber 541.

[0049] In this embodiment, the first partition 520 is tilted and fixedly connected to the lower shell 524, the water inlet 528 is provided at one side end of the first partition 520 away from the forward direction of the scrubber 100, and two drain ports 521 are provided and are respectively located at the two side ends of the first partition 520 along the forward direction of the scrubber 100. Of course, in other embodiments, the first partition 520 can also be horizontally arranged and can also be detachably connected to the lower shell 524 to facilitate cleaning and recovery of waste liquid and waste solid in the storage chamber 541. A plurality of water inlets 528 can also be provided and located at any position of the first partition 520, and the drain ports 521 can also be set to other numbers and located at any position of the first partition 520, without limitation here.

[0050] In the present invention, the recovery box 50 is set in a saddle shape, the gas-liquid separation chamber 542 is located in the middle position of the saddle shape, and two recovery storage chambers 541 are provided and located on both sides of the gas-liquid separation chamber 542. Of course, in other embodiments, the recovery box 50 can also be set in a square shape, which is not limited here.

[0051] A water retaining rib (not shown) is also provided in the recovery storage chamber 541. The water retaining rib is arranged opposite to the drain outlet 521, and at least part of the water retaining rib is connected to the first partition 520. Specifically, the water retaining rib is arranged on the side of the drain outlet 521 away from the forward direction of the floor scrubber 100, and the water retaining rib can partially cover the drain outlet 521, so that when the floor scrubber 100 shakes or tilts, the water retaining rib can limit the waste liquid in the recovery storage box, and prevent the waste liquid from flowing into the gas-liquid separation chamber 542 through the drain outlet 521.

[0052] The gas-liquid separation structure 54 also includes an airflow channel 543. A partition plate 512 and an exhaust port 513 provided on the partition plate 512 are provided in the connection cover 51. The airflow channel 543 is formed between the partition plate 512 and the upper shell 515. The exhaust port 513 and the connection port 514 are respectively provided at both ends of the airflow channel 543, so that one end of the airflow channel 543 is connected to the inner cavity of the recovery box body 52 through the exhaust port 513, and the other end is connected to the suction device through the connection port 514, and then the exhaust gas in the recovery box body 52 can be discharged to the outside of the recovery box 50 by the suction device. In this specification, the inner cavity is the general term for the gas-liquid separation cavity 542 and the recovery storage cavity 541.

[0053] That is to say, the first partition 520 and the lower shell 524 are arranged to form a recovery storage chamber 541, a gas-liquid separation chamber 542 is formed between the first partition 520 and the partition plate 512, and the partition plate 512 and the upper shell 515 are arranged to form an airflow channel 543. That is, the recovery storage chamber 541 is arranged in the recovery box body 52, the gas-liquid separation chamber 542 is arranged at the connection between the connecting cover 51 and the recovery box body 52, and the airflow channel 543 is arranged in the connecting cover 51, and the airflow channel 543, the gas-liquid separation chamber 542 and the recovery storage chamber 541 are arranged in an overlapping manner up and down.

[0054] The partition plate 512 is inclined on the horizontal plane so that the air flow channel 543 extends outward from the inside of the recovery box body 52 in a retracted manner. Specifically, the height between the end of the partition plate 512 facing the backward direction of the scrubber 100 and the surface to be cleaned is greater than the height between the end close to the forward direction of the scrubber 100 and the surface to be cleaned. The exhaust port 513 is provided at the end of the partition plate 512 that is lower than the horizontal plane, and the connection port 514 is provided at the end of the partition plate 512 that is higher than the horizontal plane, that is, the exhaust port 513 is provided on the side of the partition plate 512 close to the forward direction of the scrubber 100, and the connection port 514 is provided on the side of the recovery box 50 close to the backward direction of the scrubber 100. Of course, in other embodiments, the partition plate 512 may also be horizontally arranged, and the present invention does not limit the inclination angle of the partition plate 512 in the connecting cover 51.

[0055] By configuring in this way, when the suction device is working, the waste gas enters the air flow channel 543 from the gas-liquid separation chamber 542 through the exhaust port 513, and the waste liquid mixed in the waste gas can contact the partition plate 512 and gather on the partition plate 512, and finally slide along the inclined partition plate 512 toward the exhaust port 513, and finally pass through the exhaust port 513 to enter the gas-liquid separation chamber 542, and then enter the recovery storage chamber 541 for storage, thereby ensuring further separation of the waste gas and the waste liquid.

[0056] Furthermore, the connecting cover 51 also includes a baffle 516 connected to the partition plate 512. The baffle 516 extends from the partition plate 512 toward the air flow channel 543 and is arranged at the highest point of the partition plate 512 on the horizontal plane to block the waste liquid collected on the partition plate 512 and prevent the waste liquid from entering the connecting port 514, thereby further improving the gas-liquid separation and preventing the waste liquid from flowing out of the recovery box 50.

[0057] In the present invention, the cross section of the upper shell 515 is set in a "convex" shape, and the partition plate 512 and the air flow channel 543 are both arranged in the convex hull 518 of the upper shell 515. Of course, in other embodiments, the cross section of the upper shell 515 can also be set in a square shape, which is not limited here.

[0058] The connection cover 51 further includes a second partition plate 511, which is fixedly connected to the partition plate 512 and extends from the lower surface of the partition plate 512 toward the first partition plate 520, until a gap 519 is left between the end of the second partition plate 511 away from the partition plate 512 and the first partition plate 520. In other words, the second partition plate 511 is accommodated in the gas-liquid separation chamber 542, and the second partition plate 511 is arranged perpendicular to the forward direction of the floor scrubber 100, and the water inlet 528 and the exhaust port 513 are arranged on both sides of the second partition plate 511 to limit the waste water and waste gas entering the gas-liquid separation chamber 542 from the water inlet 528 from being directly discharged from the exhaust port 513.

[0059] Specifically, the second partition 511 and the drain port 521 are arranged opposite to each other, and the drain port 521 is arranged on both sides of the second partition 511 . Preferably, the second partition 511 divides the drain port 521 into two halves, so that the drain port 521 is arranged on both sides of the second partition 511 .

[0060] A portion of the second partition 511 is placed in the convex bulge 518 of the upper shell 515 and protrudes from the partition plate 512 toward the first partition 520, and another portion protrudes from the upper shell 515 toward the first partition 520 to block the waste liquid at the water inlet 528.

[0061] The first partition plate 520, the second partition plate 511 and the partition plate 512 are arranged to form a cavity 517, and the cavity 517 is connected to the gas-liquid separation chamber 542 through the gap 519 between the second partition plate 511 and the first partition plate 520. A part of the drain port 521 is arranged in the cavity 517, and the cavity 517 is located directly above the water inlet 528, thereby realizing the connection between the cavity 517, the water inlet 528 and the recovery storage chamber 541.

[0062] The recovery box body 52 also includes a water inlet pipe 527 fixedly connected to the first partition 520, one end of the water inlet pipe 527 is connected to the cavity 517 through the water inlet 528, and the other end is connected to the conduit 41 to achieve the connection between the recovery box body 52 and the suction port 411. Specifically, the water inlet pipe 527 extends from the first partition 520 toward the partition 512, and the height of the extension of the water inlet pipe 527 is greater than the gap 519 between the second partition 511 and the first partition 520, so that the waste water flows into the water inlet pipe 527 and hits the partition 512, and then flows to the first partition 520 under the interception of the second partition 511, and finally enters the recovery storage cavity 541 through the downspout 521. The waste gas enters the cavity 517 through the water inlet pipe 527, and enters the gas-liquid separation chamber 542 through the gap 519 between the first partition 520 and the second partition 511 and the downspouts 521 arranged on both sides of the second partition 511, and finally enters the air flow channel 543 through the exhaust port 513 and is discharged from the recovery box 50.

[0063] A third partition plate 525 fixedly connected to the first partition plate 520 is also provided in the gas-liquid separation chamber 542. Specifically, the third partition plate 525 is arranged parallel to the second partition plate 511, and the third partition plate 525 is located between the second partition plate 511 and the exhaust port 513. The third partition plate 525 protrudes from the first partition plate 520 toward the partition plate 512, and the protruding height of the third partition plate 525 is greater than the height of the gap 519 between the second partition plate 511 and the first partition plate 520, so as to prevent the waste liquid entering from the water inlet 528 from approaching the exhaust port 513.

[0064] A notch 526 is provided between the third partition 525 and the lower shell 524. Specifically, the notch 526 is provided at both ends of the third partition 525, respectively corresponding to the drain port 521, so that the waste liquid collected in the air flow channel 543 can pass through the notch 526 and enter the recovery storage chamber 541 through the drain port 521. Preferably, the first partition 520 between the notch 526 and the drain port 521 is inclined, so that the waste liquid passing through the notch 526 can quickly flow into the drain port 521.

[0065] Specifically, the third partition 525 divides the first partition 520 into two areas, namely a first area 522 close to the water inlet 528 and a second area 523 close to the exhaust port 513. A recovery storage chamber 541 is formed below the first partition 520. The first area 522 is provided with a water outlet 521 to connect the gas-liquid separation chamber 542 and the recovery storage chamber 541. The second area 523 completely covers the recovery storage chamber 541 and is arranged opposite to the exhaust port 513 to improve the separation capacity of the gas-liquid separation chamber 542.

[0066] See also Figures 9 to 12 As shown, the present invention also provides a second embodiment, which has a substantially similar structure to that of the first embodiment, with the main differences being: the formation of the airflow channel 543, the connection between the first partition 520 and the lower shell 524, the positions of the water inlet 528 and the water outlet 521 on the first partition 520, and the addition of a liquid level limiting structure 56 in the recovery box 50. The following description only describes these differences in detail.

[0067] In this embodiment, the connection cover 51 further includes a top plate 510 , which is detachably connected to the upper shell 515 , and an air flow channel 543 is formed between the top plate 510 and the partition plate 512 .

[0068] The first partition 520 is detachably connected to the lower shell 524 to facilitate cleaning of the waste liquid and waste solid in the recovery storage chamber 541. The water inlet 528 is opened in the middle of the first partition 520, so that the waste water and waste gas enter the gas-liquid separation chamber 542 from the water inlet 528 and then spread and slide to the surroundings to improve the working efficiency of the recovery box 50. Specifically, the water inlet 528 is set in the middle of the first area 522. There are several water outlets 521, which are evenly distributed on both sides of the first partition 520, so that the waste liquid in the gas-liquid separation chamber 542 and the waste liquid accumulated in the air flow channel 543 can quickly flow into the recovery storage chamber 541.

[0069] A through hole 561 is also provided on the first partition 520, which is specifically provided in the middle position of the second area 523 and is arranged corresponding to the exhaust port 513. The recovery box 50 also includes a liquid level limiting structure 56 penetrating the through hole 561, and the liquid level limiting structure 56 can slide relative to the first partition 520. Specifically, the liquid level limiting structure 56 includes a floating plate 562, a connecting rod 563 and an abutment plate 564. The through hole 561 matches the connecting rod 563, so that the connecting rod 563 can slide up and down in the through hole 561. The floating plate 562 is arranged in the recovery storage chamber 541 and is connected to the connecting rod 563. Preferably, the floating plate 562 is made of a material with greater buoyancy, so that the floating plate 562 can float on the waste liquid and move toward the first partition 520 as the height of the waste liquid in the recovery storage chamber 541 increases, so as to push the connecting rod 563 to slide in the through hole 561.

[0070] The abutment plate 564 is arranged in the gas-liquid separation chamber 542 and is connected to the connecting rod 563. Preferably, the abutment plate 564 is arranged opposite to the exhaust port 513, and the size of the abutment plate 564 is larger than the size of the exhaust port 513, so that when the waste liquid in the recovery storage chamber 541 rises, the floating plate 562 can push the abutment plate 564 to rise, so that the abutment plate 564 abuts against the partition plate 512 and closes the exhaust port 513. At this time, the exhaust gas cannot be discharged to the outside through the exhaust port 513, so that the floor scrubber 100 stops working. Such a setting can remind the user to discharge the waste liquid in the recovery box 50 in time.

[0071] In summary, the floor scrubber 100 of the present invention reduces the weight of the body 20 by arranging the recovery box 50 on the base 40, so that when the body 20 is tilted at a large angle or laid flat, the waste liquid in the recovery box 50 will not enter the suction device; by arranging the gas-liquid separation chamber 542 and the recovery storage chamber 541 in upper and lower layers, the waste gas and the waste liquid are separated in the gas-liquid separation chamber 542, the waste gas is discharged to the outside, and the waste liquid flows into the recovery storage chamber 541 for storage, which not only realizes the gas-liquid separation, but also when the floor scrubber 100 is tilted at a large angle or laid flat, the waste liquid in the recovery storage chamber 541 will not flow out; A second partition 511 is provided in 50, so that the waste liquid flowing in from the water inlet 528 is blocked by the second partition 511 and flows smoothly into the recovery box body 52, while the waste gas can pass through the gap 519 between the second partition 511 and the first partition 520 and flow to the exhaust port 513 so as to be discharged outwardly, thereby achieving sufficient separation of the waste gas and the waste liquid; by providing an air flow channel 543 connecting the recovery box body 52 and the outside world on the connecting cover 51, the air flow channel 543 can be used to discharge the waste gas in the recovery box body 52, so that the waste water and waste gas can smoothly enter the recovery box 50, thereby further improving the cleaning efficiency of the floor scrubber 100.

[0072] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A floor scrubber, characterized in that: The utility model comprises a suction device, a base and a recovery box, wherein the recovery box is arranged in the base, a suction port is arranged at the front end of the base, a gas-liquid separation chamber and a recovery storage chamber are arranged in the recovery box, one end of the gas-liquid separation chamber is communicated with the suction port to perform gas-liquid separation on the dirt sucked by the suction port, and the other end is connected with the suction device to discharge the separated waste gas to the outside through the suction device, and the recovery storage chamber is communicated with the gas-liquid separation chamber to collect the waste liquid after gas-liquid separation; The recovery box includes a first partition, the gas-liquid separation chamber and the recovery storage chamber are separated by the first partition, the recovery box includes a recovery box body and a connection cover, the first partition is placed in the recovery box body, and the connection cover also includes a partition plate and an exhaust port opened on the partition plate; A liquid level limiting structure is also provided in the recovery box. A through hole corresponding to the exhaust port is opened on the first partition. The liquid level limiting structure passes through the through hole and can slide relative to the first partition. When the waste liquid in the recovery storage chamber increases, the waste liquid can push the liquid level limiting structure to move along the through hole from the recovery storage chamber to the gas-liquid separation chamber, so that the liquid level limiting structure closes the exhaust port.

2. The floor scrubber according to claim 1, characterized in that: The first partition plate is provided with a water outlet, and the gas-liquid separation chamber is connected with the recovery storage chamber through the water outlet.

3. The floor scrubber according to claim 2, characterized in that: The first partition is arranged to be inclined in the horizontal direction, and the water outlet is arranged at the lowest point of the first partition on the horizontal plane.

4. The floor scrubber according to claim 2, characterized in that: The first partition plate is provided with a water inlet, and the gas-liquid separation chamber is communicated with the suction port through the water inlet.

5. The floor scrubber according to claim 4, characterized in that: The first partition is arranged to be inclined in the horizontal direction, and the water inlet is arranged at the highest point of the first partition on the horizontal plane.

6. The floor scrubber according to claim 5, characterized in that: The first partition plate extends obliquely from the water inlet toward one side of the water outlet.

7. The floor scrubber according to claim 4, characterized in that: The connection cover includes a second partition plate, which extends from the connection cover toward the first partition plate and has a gap between the second partition plate and the first partition plate.

8. The floor scrubber according to claim 7, characterized in that: The second partition is connected to the partition plate, and the second partition is placed between the water inlet and the exhaust port.

9. The floor scrubber according to claim 1, characterized in that: The partition plate is arranged to be inclined relative to the horizontal plane, and the exhaust port is opened at an end of the partition plate which is lower than the horizontal plane.

10. The floor scrubber according to claim 1, characterized in that: The connection cover also includes an upper shell, an air flow channel is formed between the partition plate and the upper shell, the air flow channel is connected to the gas-liquid separation chamber through the exhaust port, and one end of the air flow channel away from the exhaust port is connected to the suction device.

11. The floor scrubber according to claim 8, characterized in that: A third partition fixedly connected to the first partition is also provided in the gas-liquid separation chamber. The third partition is located between the second partition and the exhaust port. The third partition is used to prevent dirt entering from the water inlet from approaching the exhaust port.

12. The floor scrubber according to claim 11, characterized in that: The third partition divides the first partition into two areas, namely a first area close to the water inlet and a second area close to the exhaust port. A recovery storage chamber is formed below the first partition, and a water outlet is opened in the first area to connect the gas-liquid separation chamber and the recovery storage chamber.

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