Surface cleaning device
By adding a second dirt liquid suction port to the surface cleaning device and using the runner control device to realize its conduction with the dirt suction pipe, the problem of dirt liquid being difficult to suck away in the self-cleaning mode is solved, and the cleaning effect and user experience are improved.
Patent Information
- Application Number
- CN202411824433.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-02-14
AI Technical Summary
When the surface cleaning device is in self-cleaning working mode, the scraper abuts on the roller brush, making it difficult for dirt or garbage to be sucked away, causing contamination of the roller brush, and needs to be cleaned manually.
A surface cleaning device is designed to add a second dirt liquid suction port located downstream of the scraper, and selectively conduct fluid with the dirt suction pipe through the runner control device to ensure that the dirt liquid in the downstream chamber can be sucked away.
It effectively improves the cleaning effect in self-cleaning mode, avoids contamination of the inner wall of the roller brush and roller brush upper cover, reduces the user's need for manual cleaning, and optimizes the user experience.
Smart Images
Figure CN119423621A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of cleaning equipment, and in particular to a surface cleaning device. Background Art
[0002] A surface cleaning device with a suction function, such as a floor scrubber, is provided with a cleaning base that can move along the surface to be cleaned. The cleaning base is provided with a roller brush that can contact the surface to be cleaned, a scraper bar, a liquid distribution component, and a dirty liquid suction port. During the cleaning operation of the surface cleaning device, the cleaning base moves along the surface to be cleaned, the liquid distribution component continuously distributes a cleaning liquid such as water to the roller brush, the roller brush rotates around its own axis to clean the stains on the surface to be cleaned, the scraper bar abuts against the roller brush to scrape off the dirty liquid on the roller brush and the garbage attached to the surface of the roller brush, and the scraped dirty liquid or garbage will be sucked away by the dirty liquid suction port in time.
[0003] However, when the surface cleaning device is in the self-cleaning working mode, since the scraper bar is always in contact with the roller brush, it is difficult for dirty liquid or garbage on the other side of the scraper bar opposite to the suction port to pass over the scraper bar and be sucked away by the dirty liquid suction port, such as the side where the liquid distribution component is located. These dirty liquids or garbage will continue to accumulate and contaminate the roller brush, and the user has to clean the garbage manually. Summary of the invention
[0004] In order to solve the above technical problems, the purpose of the present application is to provide a surface cleaning device that effectively improves the cleaning effect in the self-cleaning working mode.
[0005] In order to achieve the above-mentioned purpose, the present application provides a surface cleaning device, comprising a cleaning base that can move along the surface to be cleaned, the cleaning base is provided with a roller brush chamber, a first dirty liquid suction port facing the roller brush chamber, a sewage suction pipe in fluid communication with the first dirty liquid suction port, a roller brush accommodated in the roller brush chamber and capable of being driven to rotate around its own axis, a scraper bar extending into the roller brush chamber, and a liquid outlet for distributing cleaning liquid to the roller brush, the scraper bar and the roller brush have an interference fit and divide the roller brush chamber into an upstream chamber and a downstream chamber along the circumferential direction, the upstream chamber is in fluid communication with the first dirty liquid suction port, and the liquid outlet is in fluid communication with the upstream chamber, characterized in that the cleaning base is also provided with a second dirty liquid suction port, the second dirty liquid suction port is in fluid communication with the downstream chamber, a flow channel control device is provided between the second dirty liquid suction port and the sewage suction pipe, and the flow channel control device is configured to selectively connect the second dirty liquid suction port to the sewage suction pipe.
[0006] In the above technical solution, preferably, the surface cleaning device further comprises: a body rotatably connected to the cleaning base between a rearwardly tilted use position and an upright storage position; and the flow channel control device is constructed to connect the second dirty liquid suction port with the fluid of the dirty liquid suction pipe in response to a position change of the body rotating from the use position to the storage position.
[0007] In the above technical solution, preferably, the flow channel control device includes a valve, which is arranged in the flow path between the second dirty liquid suction port and the suction channel, and the valve is constructed to be closed when the body is in the use position and to be opened when the body is in the storage position.
[0008] In the above technical solution, preferably, the valve is a solenoid valve, and the solenoid valve is operated to open or close by a control signal of a controller.
[0009] In the above technical solution, preferably, the valve is a mechanical valve, and the mechanical valve is constructed to be opened by the operating force driving the body to rotate from the use position to the storage position.
[0010] In the above technical solution, preferably, the mechanical valve is configured to be closed in response to the elastic restoring force of the first elastic restoring component.
[0011] In the above technical solution, preferably, a rotating joint is provided between the lower part of the body and the cleaning base, the lower part of the body is installed at the rotating joint, the rotating joint is subjected to the operating force that drives the body to rotate from the use position to the storage position and rotates with the body, and the mechanical valve includes a movable valve body; when the body is in the storage position, the rotating joint abuts against the valve body, and when the body is in the use position, the valve body is separated from the rotating connector.
[0012] In the above technical solution, preferably, the flow channel control device includes a hollow flexible tube and a squeezing component for selectively squeezing the flexible tube, the flexible tube is located between the second dirty liquid suction port and the suction channel, and the squeezing component is located on the outside of the flexible tube; when the flexible tube is squeezing, the flow path between the second dirty liquid suction port and the suction channel is cut off.
[0013] In the above technical solution, preferably, the pressing component is constructed to move under the action of the operating force driving the body to rotate from the use position to the storage position so as to flatten the flexible tube.
[0014] In the above technical solution, preferably, the extrusion component is configured to move in a direction away from the flexible tube in response to the elastic restoring force of the second elastic restoring component to release the flexible tube.
[0015] In the above technical solution, preferably, the cleaning base includes a detachable roller brush upper cover, and the roller brush upper cover defines the upper boundary of the roller brush cavity; the second dirty liquid suction port is divided into two groups, one group is arranged toward the roller brush, and the other group is arranged toward the roller brush upper cover.
[0016] The present application adds a second dirty liquid suction port downstream of the scraper bar, and the second dirty liquid suction port is selectively connected to the fluid of the dirt suction pipe, so that the surface cleaning device can use the second dirty liquid suction port to suck dirt from the downstream chamber of the roller brush chamber. In particular, when the surface cleaning device is in the self-cleaning mode, the second dirty liquid suction port can help clean the roller brush cover, avoiding the need for the user to manually clean the inner wall of the roller brush cover for a second time. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A schematic diagram of the structure of a surface cleaning device provided in an embodiment of the present application when in a use position; Figure 2 A schematic diagram of the structure of a surface cleaning device provided in an embodiment of the present application when in a storage position; Figure 3 A schematic diagram of the structure of a cleaning base provided in an embodiment of the present application after removing the roller brush upper cover; Figure 4 A schematic diagram of the structure of a cleaning base provided in an embodiment of the present application after removing the roller brush upper cover and the roller brush; Figure 5 A partial cross-sectional schematic diagram of the front portion of a cleaning base provided in an embodiment of the present application; Figure 6 A schematic top view of a flow channel control device installed in a cleaning base provided in an embodiment of the present application; Figure 7 A schematic diagram of the structure of a valve provided in an embodiment of the present application; Figure 8 A schematic diagram of the structure when the valve in the cleaning base provided in an embodiment of the present application is opened; Fig. 9 for Figure 8 An enlarged schematic diagram at A; Fig.10 A schematic diagram of the structure when the valve in the cleaning base provided in an embodiment of the present application is closed; Fig.11 for Fig.10 An enlarged schematic diagram at B; Fig.12 A schematic top view of another flow channel control device installed in the cleaning base provided in an embodiment of the present application; Fig.13 A schematic diagram of the structure when the flexible tube in the cleaning base provided by an embodiment of the present application is released; Fig.14 for Fig.13 An enlarged schematic diagram at C; Fig.15 A schematic diagram of the structure of a flexible tube in a cleaning base provided in an embodiment of the present application when being flattened; Fig.16 for Fig.15 Enlarged schematic diagram at D. DETAILED DESCRIPTION
[0018] In order to explain in detail the technical content, structural features, objectives and effects of the present application, the technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.
[0019] In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or embodiments of the present application. However, various exemplary embodiments may also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but not necessarily exclusive. For example, without departing from the present application's concept, the specific shape, configuration and characteristics of the exemplary embodiment may be used or implemented in another exemplary embodiment.
[0020] See also Figure 1 and Figure 2 , which shows a surface cleaning device 100 of a preferred embodiment of the present application. The surface cleaning device 100 is configured as a vertical floor cleaning device, which includes a body 1 and a cleaning base 2. The body 1 can be in a backward tilted use position ( Figure 1 position) and upright storage position ( Figure 2 The surface cleaning device 100 is rotatably connected to the cleaning base 2 between the positions of the cleaning base 2 and the cleaning base 2. The surface cleaning device 100 can be used for cleaning surfaces such as short-haired carpets and hard floors.
[0021] The body 1 includes a housing 11, a handle 12 located on the upper side of the housing 11, a cleaning liquid supply tank (not shown in the figure) detachably mounted on the front side of the housing 11, a dirty liquid recovery tank 14, and a suction motor assembly (not shown in the figure) in fluid communication with the dirty liquid recovery tank 14. The cleaning liquid supplied in the cleaning liquid supply tank can be clean water or a disinfectant solution configured with an appropriate concentration, etc., and the present application does not limit this. like Figure 3 , Figure 4 and Figure 5 As shown, the cleaning base 2 includes a housing 21, a roller brush 22 and a roller brush upper cover 23 (see Figure 1 and Figure 2 ). The housing 21 and the roller brush upper cover 23 define a roller brush chamber 25 with a bottom opening. The roller brush 22 is placed in the roller brush chamber 25 and can be driven by the roller brush motor 26 to rotate around its own axis. A dirty liquid suction port 27 is provided in the housing 21, which is located at the rear side of the roller brush chamber 25 and faces the roller brush chamber 25. The dirty liquid suction port 27 can be fluidically connected to the dirty liquid recovery tank 14 on the body 1 through a sewage suction pipe 28, so that the surface cleaning device 100 sucks the dirty liquid and dirt at the dirty liquid suction port 27 into the dirty liquid recovery tank 14. The roller brush 22 is rotatably connected to the floor brush housing 1 and is configured to clean the working surface. During use, the floor brush 22 that rotates around its own axis continuously contacts and rubs against the surface to be cleaned, thereby achieving cleaning of the surface.
[0022] A rotary joint 4 is provided between the rear of the housing 21 and the casing 11, and the rotary joint 4 is rotatably attached to the rear of the housing 21 around a horizontal axis. The lower part of the casing 11 will be connected to the upper part of the rotary joint 24. The rotary joint 4 is subjected to the manipulation force that drives the body 1 to rotate between the use position and the storage position, and rotates around the horizontal axis with the body 4. The sewage suction pipe 28 will pass through the rotary joint 4 and be in fluid communication with the sewage recovery tank 14.
[0023] See also Figure 4 and Figure 5 A scraper bar 29 is provided on the housing 21 at a position above the dirty liquid suction port 27. The scraper bar 29 is usually a hard scraper bar and is configured to have an interference fit with the roller brush 22 to scrape off excess dirty liquid and dirt adhering to the outer peripheral surface of the roller brush 22. In terms of the rotation direction of the roller brush 22, the scraper bar 29 divides the roller brush chamber 25 into an upstream chamber 251 and a downstream chamber 252 along the circumferential direction. The dirty liquid suction port 27 faces the upstream chamber 251 and is in fluid communication with the upstream chamber 251.
[0024] refer to Figure 5In the viewing direction, the roller brush 22 of this example can be driven to rotate in the counterclockwise direction during normal operation. During the rotation of the roller brush 22, the scraping strip 29 can scrape off the dirty liquid and dirt on the roller brush 22, and the scraped dirty liquid and dirt will be sucked into the dirt suction pipe 28 by the dirty liquid suction port 27 and sent to the dirty liquid recovery box 14.
[0025] See also Figure 4 , a liquid supply assembly 3 is also provided on the housing 21 above the scraper strip 29. The liquid supply assembly 3 includes a base 31, a plurality of liquid outlets 32 provided on the base 31, and a plurality of dirty liquid suction ports 34 and 35 provided on the base 31. Among them, the plurality of liquid outlets 32 are provided at the front side surface of the base 31 and face the roller brush 22. The plurality of dirty liquid suction ports 34 and 25 are divided into two groups, one group of dirty liquid suction ports 34 is provided at the front side surface of the base 31 and faces the roller brush 22, and the other group of dirty liquid suction ports 35 is provided at the upper surface of the base 31 and faces the roller brush upper cover 23. The plurality of dirty liquid suction ports 34 and 35 will lead to the dirty liquid pipeline 36. The plurality of liquid outlets 32 are connected to the liquid supply pipeline (not shown in the figure) which is in fluid communication with the cleaning liquid supply tank 13. The plurality of liquid outlets 32, the plurality of dirty liquid suction ports 34, and the plurality of dirty liquid suction ports 35 are all located on the side where the downstream chamber 252 is located and are in fluid communication with the downstream chamber 252.
[0026] A flow channel control device is also provided on the housing 21 between the dirty liquid pipeline 36 and the sewage suction pipeline 28. The flow channel control device is configured to selectively connect the multiple dirty liquid suction ports 34 to the sewage suction pipeline 28. When the multiple dirty liquid suction ports 34 and 35 are in fluid communication with the sewage suction pipeline 28, the dirty liquid and dirt in the downstream chamber 252 can be sucked into the sewage suction pipeline 28 and sent to the dirty liquid recovery tank 14 by means of the multiple dirty liquid suction ports 34 and 35, thereby keeping the interior of the downstream chamber 252 clean. When the multiple dirty liquid suction ports 34 are not in fluid communication with the sewage suction pipeline 28, the cleaning liquid output by the multiple liquid outlets 32 can be normally applied to the roller brush 22 without worrying about being sucked away by the multiple dirty liquid suction ports 34.
[0027] In this example, the flow path control device is configured to connect the dirty liquid suction port 34 with the sewage suction pipe 28 in response to the position change of the body 1 from the backward tilted use position to the upright storage position. When the body 1 is in the backward tilted use position, the flow path control device cuts off the flow path between the dirty liquid suction port 34 and the sewage suction pipe 28; and when the body 1 is in the upright storage position, the flow path control device connects the flow path between the dirty liquid suction port 34 and the sewage suction pipe 28.
[0028] The following is an example of a possible structural scheme of the flow channel control device.
[0029] See also Figure 6-Figure 11, which shows an embodiment of the flow channel control device. In this embodiment, the flow channel control device 50 includes a valve 5, which is arranged in the dirty liquid pipeline 36. The valve 5 is closed when the body 1 is in the use position, and the dirty liquid pipeline 36 is not in fluid communication with the sewage suction pipeline 28; and is opened when the body 2 is in the storage position, and the dirty liquid pipeline 36 is in fluid communication with the sewage suction pipeline 28.
[0030] See also Figure 7 The valve 5 is a mechanical valve and includes a movable valve body 51, a valve body return spring 52, a valve body upper sealing ring 53 and a valve body lower sealing ring 54. The valve body 51 extends to the outside of the housing 21.
[0031] See also Figure 8 and Fig. 9 When the body 2 is rotated to the storage position, the rotating joint 4 will abut against the valve body 51 and push the valve body 51 to move, and the valve 5 will be opened. Fig.10 and Fig.11 When the body 2 is rotated from the storage position to the use position, the rotary joint 4 will be separated from the valve body 51, and the valve body 51 will automatically reset under the elastic restoring force of the valve body reset spring 52, and the valve 5 will be closed. Therefore, the valve 5 of this example is constructed to be opened by the operating force driving the body 1 to rotate from the use position to the storage position; and closed in response to the elastic restoring force of the valve body reset spring 52.
[0032] In some embodiments, the valve may be set as a solenoid valve, which is operated to open or close by a control signal of a controller. For example, the controller may send a control signal to open the operating valve based on the position change of the body from the use position to the storage position, and send a control signal to close the operating valve based on the position change of the body from the storage position to the use position.
[0033] See also Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.16 , which shows another embodiment of the flow channel control device. In this embodiment, the flow channel control device 60 includes a hollow flexible tube 61, an extrusion component 62 that can selectively flatten the flexible tube 61, and a spring 63. The flexible tube 62 constitutes a part of the sewage pipeline 36. The extrusion component 62 is located outside the flexible tube 61. The extrusion component 62 is supported on the housing 11 by the spring 63.
[0034] See also Fig.15 and Fig.16 As shown in FIG. 1 , when the flexible tube 61 is flattened by the pressing member 62 , the flow path between the waste liquid suction port 34 and the waste liquid suction pipe 28 is cut off. Fig.13 and Fig.14As shown, when the flexible tube 61 is released by the pressing member 62 , the flow path between the waste liquid suction port 34 and the waste liquid suction pipe 28 is open.
[0035] In this example, the pressing member 62 can press the flexible tube 61 by moving toward the flexible tube 61, thereby flattening the flexible tube 61; and after the external force applied to the pressing member 62 is cancelled, the pressing member 62 moves away from the flexible tube 61 by relying on the elastic restoring force of the spring 63 to release the flexible tube 61. Therefore, the pressing member 62 in this example is configured to move under the action of the operating force driving the body 1 to rotate from the use position to the storage position to flatten the flexible tube; and to move in the direction away from the flexible tube in response to the elastic restoring force of the spring 63 to release the flexible tube.
[0036] The above-mentioned flow channel control device embodiment is only for the purpose of illustrating the flow channel control device by example; those skilled in the art can improve or redesign it according to actual needs. Any feasible solution that can selectively connect the waste liquid suction port 34 with the waste suction pipe 28 can be used in this application.
[0037] The present application adds a group of dirty liquid suction ports 34 that are fluidically connected to the downstream chamber 252, and uses a flow channel control device to control the flow path between the dirty liquid suction port 34 and the dirty liquid suction pipe 28, so that the dirty liquid suction port 34 can not only transfer the garbage and dirty liquid in the downstream chamber 252 when the fuselage 1 is in the storage position, but also clean the front side surface of the base 31 and the inner wall surface of the roller brush cover 23, so that the user no longer needs to manually clean the front side surface of the base 31 and the inner wall surface of the roller brush cover 23, thereby optimizing the user experience; and does not affect the normal liquid discharge of the liquid outlet 32 when the fuselage 1 is in the use position.
[0038] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, and the scope of protection required by the present application is defined by the attached claims, description and their equivalents.
Claims
1. A surface cleaning device, comprising a cleaning base that can move along a surface to be cleaned, the cleaning base being provided with a rolling brush chamber, a first dirty liquid suction port facing the rolling brush chamber, a dirt suction pipe in fluid communication with the first dirty liquid suction port, a rolling brush accommodated in the rolling brush chamber and capable of being driven to rotate around its own axis, a scraper bar extending into the rolling brush chamber, and a liquid outlet for distributing cleaning liquid to the rolling brush, the scraper bar having an interference fit with the rolling brush and dividing the rolling brush chamber into an upstream chamber and a downstream chamber in a circumferential direction, the upstream chamber being in fluid communication with the first dirty liquid suction port, and the liquid outlet being in fluid communication with the upstream chamber, characterized in that The cleaning base is also provided with a second dirty liquid suction port, which is in fluid communication with the downstream chamber, and a flow channel control device is provided between the second dirty liquid suction port and the sewage suction pipe, and the flow channel control device is configured to selectively connect the second dirty liquid suction port with the sewage suction pipe.
2. The surface cleaning device according to claim 1, characterized in that Also includes: A body rotatably connected to the cleaning base between a rearwardly tilted use position and an upright storage position; the flow path control device is constructed to connect the second dirty liquid suction port with the sewage suction pipeline fluid in response to the position change of the body rotating from the use position to the storage position.
3. The surface cleaning device according to claim 2, characterized in that The flow path control device includes a valve, which is arranged in the flow path between the second dirty liquid suction port and the suction channel, and is configured to be closed when the body is in the use position and open when the body is in the storage position.
4. The surface cleaning device according to claim 3, characterized in that The valve is a solenoid valve, which is opened or closed by a control signal from a controller.
5. The surface cleaning device according to claim 2, characterized in that The valve is a mechanical valve, and the mechanical valve is configured to be opened by an operating force that drives the body to rotate from the use position to the storage position.
6. The surface cleaning device according to claim 5, characterized in that The mechanical valve is configured to be closed in response to the elastic restoring force of the first elastic restoring component.
7. The surface cleaning device according to claim 5, characterized in that A rotating joint is provided between the lower part of the machine body and the cleaning base, and the lower part of the machine body is installed at the rotating joint. The rotating joint is rotated along with the machine body under the action of the operating force that drives the machine body to rotate from the use position to the storage position. The mechanical valve includes a movable valve body; when the machine body is in the storage position, the rotating joint abuts against the valve body, and when the machine body is in the use position, the valve body is separated from the rotating connector.
8. The surface cleaning device according to claim 2, characterized in that The flow channel control device includes a hollow flexible tube and a squeezing component for selectively squeezing the flexible tube, the flexible tube is located between the second dirty liquid suction port and the suction channel, and the squeezing component is located outside the flexible tube; when the flexible tube is squeezing, the flow path between the second dirty liquid suction port and the suction channel is cut off.
9. The surface cleaning device according to claim 2, characterized in that The pressing member is configured to move in response to an operating force that drives the body to rotate from the use position to the storage position to flatten the flexible tube.
10. The surface cleaning device according to claim 9, characterized in that The pressing member is configured to move in a direction away from the flexible tube in response to the elastic restoring force of the second elastic restoring member so as to release the flexible tube.
11. The surface cleaning device according to claim 1, characterized in that The cleaning base includes a detachable roller brush upper cover, which defines the upper boundary of the roller brush chamber; the second dirty liquid suction port is divided into two groups, one group is arranged toward the roller brush, and the other group is arranged toward the roller brush upper cover.