Vacuum fixator, base station and surface cleaning system

Abstract

The embodiment of the utility model provides a vacuum fixator, a base station and a surface cleaning system. The vacuum fixator comprises an upper shell, and an air outlet and an air inlet are formed in the upper shell; a first sealing space is formed between the upper shell and the lower shell, a concave cavity is formed in the bottom of the lower shell, a second sealing space is formed between the concave cavity and the supporting surface, a communicating hole is formed in the lower shell, and the communicating hole is used for communicating the first sealing space with the second sealing space; the air outlet control unit is used for controlling air outlet of the air outlet hole, so that negative pressure is generated in the first sealed space and the second sealed space, and the vacuum fixator is adsorbed on the supporting surface; and the air inlet control unit is used for controlling air inlet of the air inlet hole, so that the air pressure in the first sealed space and the second sealed space is gradually increased, and the vacuum fixator can be conveniently taken down from the supporting surface. In the embodiment of the invention, the base station can be firmly fixed on the supporting surface through the vacuum fixer, so that the stability of the base station is improved.

Description

Technical Field

[0001] The present application relates to the field of cleaning technology, and in particular to a vacuum holder, a base station and a surface cleaning system. Background Art

[0002] A surface cleaning device is a household appliance that can provide a cleaning function, such as a self-propelled surface cleaning device such as a window cleaning robot or a sweeping robot. A walking unit and a cleaning unit are usually provided at the bottom of the surface cleaning device, and the walking unit can drive the surface cleaning device to move on the surface to be cleaned. When the surface cleaning device moves on the surface to be cleaned, the cleaning unit can wipe or sweep the surface to be cleaned, thereby achieving a cleaning effect on the surface to be cleaned.

[0003] In order to improve the performance of the surface cleaning device, a base station may be configured for the surface cleaning device, and relevant functional units may be set on the base station, so that the base station cooperates with the surface cleaning device to realize corresponding functions.

[0004] However, in the prior art, the base station is usually simply placed on a support surface (e.g., the ground or a tabletop) without taking corresponding fixing measures for the base station. If the base station falls over due to collision by a user or instability of the support surface, it will affect the operation of the surface cleaning device and even cause certain safety hazards.

[0005] It should be pointed out that the information disclosed in the background technology section of this application is only intended to deepen the understanding of the general background technology of this application, and should not be regarded as an admission or suggestion in any form that the information constitutes prior art already known to those skilled in the art. Summary of the invention

[0006] In view of this, the present application provides a vacuum holder, a base station and a surface cleaning system, so as to solve the problem in the prior art that the base station is usually supported on the ground by its own gravity. If the base station falls over, it will affect the operation of the surface cleaning device and even cause certain safety hazards.

[0007] In a first aspect, an embodiment of the present application provides a vacuum holder, comprising:

[0008] An upper shell, wherein an air outlet and an air inlet are provided on the upper shell;

[0009] A lower shell, the upper shell is buckled on the lower shell, a first sealed space is formed between the upper shell and the lower shell, a concave cavity is provided at the bottom of the lower shell, the concave cavity is used to form a second sealed space with the support surface, and a communicating hole is provided on the lower shell, the communicating hole is used to communicate the first sealed space with the second sealed space;

[0010] An air outlet control unit, the air outlet control unit is used to control the air outlet of the air outlet hole, so that negative pressure is generated in the first sealed space and the second sealed space, and the vacuum holder is adsorbed on the support surface;

[0011] An air intake control unit is used to control the air intake of the air intake hole so that the air pressure in the first sealed space and the second sealed space gradually increases, making it easier to remove the vacuum fixture from the support surface.

[0012] In a possible implementation, a one-way switch is also provided on the lower shell, and the one-way switch is used to open the connecting hole when the air pressure in the first sealed space is lower than the air pressure in the second sealed space, and to close the connecting hole when the air pressure in the first sealed space is higher than the air pressure in the second sealed space.

[0013] In a possible implementation, the method further includes:

[0014] A first flexible seal is disposed between the upper shell and the lower shell, and is used to seal a gap between the upper shell and the lower shell.

[0015] In a possible implementation, the method further includes:

[0016] A first elastic member, wherein a first end of the first elastic member abuts against the bottom of the upper shell, and a second end of the first elastic member passes through the first flexible sealing member and abuts against the top of the lower shell.

[0017] In a possible implementation manner, there are multiple first elastic members, and the multiple first elastic members are evenly distributed around the first flexible sealing member.

[0018] In a possible implementation, the method further includes:

[0019] A second flexible seal is provided at the bottom of the lower shell, and is used for sealing a gap between the lower shell and a supporting surface.

[0020] In a possible implementation, the method further includes:

[0021] A fixing member is used to fix the second flexible sealing member on the bottom of the lower shell.

[0022] In a possible implementation manner, there are multiple fixing members, and the multiple fixing members are evenly distributed around the second flexible sealing member.

[0023] In a possible implementation, the method further includes:

[0024] A second elastic member, wherein a first end of the second elastic member abuts against the bottom of the lower shell, and a second end of the elastic member abuts against the second flexible sealing member.

[0025] In a possible implementation manner, there are multiple second elastic members, and the multiple second elastic members are evenly distributed around the second flexible sealing member.

[0026] In a second aspect, an embodiment of the present application provides a base station for a surface cleaning device, comprising:

[0027] The vacuum holder according to any one of the first aspects, wherein the vacuum holder is arranged at the bottom of the base station;

[0028] A vacuum unit is connected to the air outlet and is used to generate negative pressure.

[0029] In a third aspect, an embodiment of the present application provides a surface cleaning system, comprising:

[0030] A surface cleaning device, the surface cleaning device comprising an adsorption unit, the adsorption unit being used to define a third sealed space with the surface to be cleaned;

[0031] In the base station described in the second aspect, the vacuum unit is communicated with the third sealed space.

[0032] In the embodiment of the present application, the base station can be firmly fixed on the supporting surface by a vacuum fixer, thereby improving the stability of the base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 A schematic diagram of a working state of a surface cleaning system provided in an embodiment of the present application;

[0035] Figure 2A An exploded view of a vacuum holder provided in an embodiment of the present application;

[0036] Figure 2B An exploded view of another vacuum holder provided in an embodiment of the present application.

[0037] The symbols in the figure are represented as: 100-surface cleaning device, 200-base station, 300-cable, 400-vacuum holder, 410-upper shell, 411-air outlet, 412-air inlet, 420-lower shell, 421-one-way switch, 430-air outlet control unit, 440-air inlet control unit, 450-first flexible sealing member, 451-first elastic member accommodating portion, 460-first elastic member, 470-second flexible sealing member, 471-fixing member accommodating portion, 472-second elastic member accommodating portion, 480-second elastic member, 490-fixing member, 510-vacuum unit, 520-circuit board. DETAILED DESCRIPTION

[0038] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0039] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0040] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0041] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0042] The surface cleaning device is a self-moving cleaning device, which can clean the working surface while walking on the surface to be cleaned (such as glass, also referred to as the surface to be cleaned).

[0043] The following will take the example of a surface cleaning device being a window cleaning robot and a surface to be cleaned being a window as an example. In order to power the window cleaning robot, a power cord is usually provided on the window cleaning robot, one end of which is connected to the window cleaning robot, and the other end is used to connect to a power socket (for example, a 220V household socket). In addition, in order to prevent the window cleaning robot from falling during the window cleaning process and causing a safety accident, a safety rope is usually provided on the window cleaning robot, one end of which is connected to the window cleaning robot, and the other end is used to fix it (for example, fixed on a window or a table, which can be selected according to the working environment of the window cleaning robot). If the window cleaning robot falls on the window, the safety rope can be used to pull the window cleaning robot to avoid a safety accident. In some implementations, the power cord and the safety rope may also be integrated into a wiring harness, that is, a power cord / safety rope integrated cable.

[0044] In practical applications, window cleaning robots usually need to work in multiple independent working scenes. For example, a room includes multiple windows, and the window cleaning robot needs to clean the multiple windows separately. However, in the above implementation scheme, the working scene of the window cleaning robot is usually constrained by the position of the power socket, the length of the power cord or the fixed position of the safety rope, resulting in poor environmental adaptability of the window cleaning robot. For example, if there is no power socket at a certain window position or there is no fixed position for the safety rope at a certain window position, the window cleaning robot cannot clean the window. In addition, using the above scheme, the process of users moving the window cleaning robot between multiple windows is very cumbersome, resulting in poor mobility of the window cleaning robot. For example, when the user needs to move the window cleaning robot from one window position to another window position, it is necessary to unplug the power plug at the previous window position and untie the safety rope; then re-plug the power plug at the next window position and tie the safety rope, which results in poor user experience.

[0045] It should be noted that the above description uses a window cleaning robot as an example, but the embodiments of the present application do not limit the surface cleaning device and the application scenarios of the surface cleaning device. For example, in some possible implementations, the bottom of the surface cleaning device may not be provided with an adsorption unit, in which case the surface cleaning device can be used for floor cleaning; in addition, in addition to windows, the surface cleaning device can also clean ceilings, walls or other surfaces, and the embodiments of the present application do not limit this.

[0046] In order to increase the application scenarios of the surface cleaning device and improve the mobility of the surface cleaning device, a split design solution is provided in the related art. Figure 1 , is a schematic diagram of the working state of a surface cleaning system provided in an embodiment of the present application. Figure 1As shown, the surface cleaning system includes a surface cleaning device 100, a base station 200 and a cable 300. One end of the cable 300 is connected to the surface cleaning device 100, and the other end is connected to the base station 200. The embodiment of the present application does not limit the type of the cable 300, and those skilled in the art can configure the cable 300 between the surface cleaning device 100 and the base station 200 according to actual needs.

[0047] For example, the cable 300 may be a safety rope and / or a power cord. In addition, it may be a power cord / safety rope integrated cable, that is, the same cable integrates the functions of the power cord and the safety rope. In other application scenarios, the cable 300 may also include a ventilation pipe, a signal line, an infusion hose and / or a steam hose, etc. When two or more cables 300 are connected between the base station 200 and the surface cleaning device 100 at the same time, in order to facilitate storage and arrangement, the two or more cables 300 can be wrapped in a coated hose. Specifically, the coated hose can be a corrugated tube.

[0048] In the prior art, the base station is usually simply placed on a supporting surface (e.g., the ground or a tabletop) without taking corresponding fixing measures for the base station. If the base station falls over due to collision by a user or instability of the supporting surface, it will affect the operation of the surface cleaning device and even cause certain safety hazards.

[0049] In view of the above problems, an embodiment of the present application provides a vacuum fixer, through which a base station can be firmly fixed on a supporting surface, thereby improving the stability of the base station.

[0050] See also Figure 2A , is an exploded view of a vacuum holder provided in an embodiment of the present application; see Figure 2B , is an exploded view of another vacuum holder provided in an embodiment of the present application. Figure 2A and Figure 2B As shown, the vacuum holder 400 includes an upper shell 410 and a lower shell 420, and the upper shell 410 is buckled on the lower shell 420 to form a first sealed space between the upper shell 410 and the lower shell 420. The upper shell 410 is provided with an air outlet 411 and an air inlet 412, and the bottom of the lower shell 420 is provided with a concave cavity, which is used to form a second sealed space with the supporting surface, and the lower shell 420 is provided with a connecting hole, which is used to connect the first sealed space and the second sealed space.

[0051] In addition, the vacuum holder 400 also includes an air outlet control unit 430 and an air inlet control unit 440. When the vacuum holder 400 needs to be adsorbed on the support surface, the air outlet control unit 430 can be used to control the air outlet hole 411 to discharge air, so that negative pressure is generated in the first sealed space. Since the first sealed space and the second sealed space are connected, negative pressure is generated in the second sealed space, and the vacuum holder 400 is adsorbed on the support surface. When the vacuum holder 400 needs to be removed from the support surface, the air inlet control unit 440 can be used to control the air inlet hole 412 to gradually increase the air pressure in the first sealed space. Since the first sealed space and the second sealed space are connected, the air pressure in the second sealed space is gradually increased, which facilitates the removal of the vacuum holder 400 from the support surface.

[0052] In a specific implementation, the air outlet control unit 430 may be an air outlet valve. When it is necessary to control the air outlet hole 411 to discharge air, the air outlet valve may be controlled to open, thereby extracting the air in the first sealed space and the second sealed space. When the air pressure in the first sealed space and the second sealed space is reduced to a certain extent, the air outlet valve may be controlled to close, so that the first sealed space and the second sealed space maintain a negative pressure state. The air intake control unit 440 may be an air intake valve. When it is necessary to control the air intake hole 412 to intake air, the air intake valve may be controlled to open, thereby allowing external air to enter the first sealed space and the second sealed space. It should be noted that when controlling the air outlet hole 411 to discharge air, or when the first sealed space and the second sealed space maintain a negative pressure state, the air intake valve should be controlled to close.

[0053] It is understandable that in order to extract the air in the first sealed space and the second sealed space, a vacuum unit 510 (eg, a vacuum pump or a fan, etc.) is also required.

[0054] In a possible implementation, the vacuum holder 400 further includes a vacuum unit 510, which is connected to the air outlet 411. When the vacuum unit 510 is working, negative pressure is generated in the vacuum unit 510, thereby providing negative pressure for the first sealed space and the second sealed space. In a specific implementation, the vacuum holder 400 further includes a circuit board 520, which is disposed on the upper portion of the upper housing 410, and the air inlet control unit 440, the air outlet control unit 430 and the vacuum unit 510 are all disposed on the circuit board 520.

[0055] In another possible implementation, a vacuum unit is provided inside the base station, and the air outlet 411 of the vacuum holder 400 is connected to the vacuum unit inside the base station through a ventilation pipe, and then the vacuum unit inside the base station provides negative pressure for the first sealed space and the second sealed space of the vacuum holder 400. It should be supplemented that the vacuum unit inside the base station is usually also connected to the adsorption unit of the surface cleaning device through a ventilation pipe, and then negative pressure is provided for the adsorption unit of the surface cleaning device. That is to say, in the embodiment of the present application, negative pressure is provided to the surface cleaning device and the vacuum holder 400 at the same time through the vacuum unit inside the base station, so that the vacuum unit inside the base station is reused and cost is saved.

[0056] In a possible implementation, a one-way switch 421 is further provided on the lower shell 420. The one-way switch 421 is used to open the connecting hole when the air pressure in the first sealed space is lower than the air pressure in the second sealed space, and to close the connecting hole when the air pressure in the first sealed space is higher than the air pressure in the second sealed space.

[0057] Specifically, when vacuuming is required, the air outlet control unit 430 is controlled to open, and the air in the first sealed space is discharged through the air outlet 411, thereby reducing the air pressure in the first sealed space. At this time, since the air pressure in the second sealed space is greater than the air pressure in the first sealed space, under the action of the air pressure difference, the one-way switch 421 is opened, so that the air in the second sealed space flows into the first sealed space and is then discharged through the air outlet 411. It should be pointed out that when the one-way switch 421 is turned on, only a small gap is retained between the one-way switch 421 and the lower shell 420 to prevent foreign matter in the second sealed space from entering the first sealed space.

[0058] When it is necessary to release the negative pressure in the vacuum holder 400, the air intake control unit 440 is controlled to open, and the external air enters the first sealed space through the air intake hole 412, and the air pressure in the first sealed space gradually increases. At this time, since the air pressure in the first sealed space is greater than the air pressure in the second sealed space, the one-way switch 421 remains closed under the effect of the air pressure difference.

[0059] In a possible implementation, when the one-way switch 421 remains in a closed state, the communication hole on the lower housing 420 is not completely sealed. Therefore, when the air pressure in the first sealed space is greater than the air pressure in the second sealed space, the air in the first sealed space can still slowly enter the second sealed space through the communication hole, so that the air pressure in the second sealed space gradually increases until the air pressure in the first sealed space is the same as the air pressure in the second sealed space.

[0060] In another possible implementation, when the one-way switch 421 remains in a closed state, the communication hole on the lower housing 420 can be completely sealed. Therefore, when the air pressure in the first sealed space is greater than the air pressure in the second sealed space, the air in the first sealed space cannot enter the second sealed space through the communication hole. That is to say, when the external air enters the first sealed space, it will not cause the second sealed space to lose pressure. This solution can avoid the loss of pressure in the second sealed space due to abnormal loss of pressure in the first sealed space, thereby improving the safety of the vacuum holder 400. It should be supplemented that in this implementation, when the negative pressure in the vacuum holder 400 needs to be released, for the first sealed space, the air intake control unit 440 can be controlled to open, and the external air enters the first sealed space through the air intake hole 412, and the air pressure in the first sealed space gradually increases. For the second sealed space, since there will be a certain gap between the bottom of the lower housing 420 and the supporting surface, when the vacuum unit 510 is not working, the external air will slowly enter the second sealed space, thereby causing the air pressure in the second sealed space to gradually increase.

[0061] In a possible implementation, in order to improve the sealing performance of the connection between the upper shell 410 and the lower shell 420, a first flexible seal 450 is further provided between the upper shell 410 and the lower shell 420, and the first flexible seal 450 is used to seal the gap between the upper shell 410 and the lower shell 420. Further, a first elastic member 460 is further provided between the upper shell 410 and the lower shell 420, and the first end of the first elastic member 460 abuts against the bottom of the upper shell 410, and the second end of the first elastic member 460 passes through the first flexible seal 450 and abuts against the top of the lower shell 420. It can be understood that when negative pressure is generated in the first sealed space, the first elastic member 460 will be compressed under the action of the external atmospheric pressure, and the distance between the upper shell 410 and the lower shell 420 will be reduced; when the negative pressure in the first sealed space is released, the first elastic member 460 will return to its initial state under the action of its own elastic force, and the distance between the upper shell 410 and the lower shell 420 will be increased.

[0062] In a specific implementation, the first flexible sealing member 450 is provided with a first elastic member accommodating portion 451, and the first elastic member 460 passes through the first elastic member accommodating portion 451 and abuts between the upper shell 410 and the lower shell 420. In addition, the number of the first elastic member 460 can be multiple, for example Figure 2A and Figure 2B12 are shown. Of course, those skilled in the art may also set other numbers of first elastic members 460 according to actual needs, and the present application embodiment does not impose specific restrictions on this. When there are multiple first elastic members 460, the multiple first elastic members 460 are evenly distributed around the first flexible sealing member 450, so that the force between the upper shell 410 and the lower shell 420 is evenly applied.

[0063] In one possible implementation, in order to improve the sealing between the lower shell 420 and the support surface, a second flexible seal 470 is further provided at the bottom of the lower shell 420, and the second flexible seal 470 is used to seal the gap between the lower shell 420 and the support surface. Furthermore, the second flexible seal 470 can be fixed to the bottom of the lower shell 420 by a fixing member 490. In a specific implementation, a fixing member accommodating portion 471 is further provided on the second flexible seal 470, and the shape of the fixing member accommodating portion 471 matches the fixing member 490. After the fixing member 490 is embedded in the fixing member accommodating portion 471 at the bottom of the second flexible seal, the fixing member 490 and the second flexible seal 470 can be fixed to the bottom of the lower shell 420 by connecting members such as screws. In addition, the number of fixing members 490 can be multiple, for example Figure 2A and Figure 2B Of course, those skilled in the art may also set other numbers of fixing members 490 according to actual needs, and the present application embodiment does not impose specific restrictions on this. When there are multiple fixing members 490, the multiple fixing members 490 are evenly distributed around the second flexible sealing member 470 to improve the sealing effect of the second flexible sealing member 470.

[0064] In a possible implementation, a second elastic member 480 is further provided between the lower shell 420 and the second flexible seal 470, the first end of the second elastic member 480 abuts against the bottom of the lower shell 420, and the second end of the second elastic member 480 abuts against the second flexible seal 470. It can be understood that when negative pressure is generated in the second sealed space, the second elastic member 480 will be compressed under the action of the external atmospheric pressure, and the distance between the lower shell 420 and the second flexible seal 470 will be reduced; when the negative pressure in the second sealed space is released, the second elastic member 480 returns to its initial state under the action of its own elastic force, and the distance between the lower shell 420 and the second flexible seal 470 increases. In a specific implementation, a second elastic member accommodating portion 472 is further provided on the second flexible seal 470, and the second end of the second elastic member 480 can be embedded in the second elastic member accommodating portion 472, thereby improving the stability of the second elastic member 480.

[0065] In a specific implementation, the number of the second elastic member 480 may be multiple, for example Figure 2A and Figure 2B12 are shown. Of course, those skilled in the art may also set other numbers of second elastic members 480 according to actual needs, and the present application embodiment does not impose specific restrictions on this. When there are multiple second elastic members 480, the multiple second elastic members 480 are evenly distributed around the second flexible seal 470, so that the force between the lower shell 420 and the second flexible seal 470 is evenly applied, thereby improving the sealing effect of the second flexible seal 470.

[0066] Corresponding to the above embodiment, the embodiment of the present application further provides a base station for a surface cleaning device, the base station comprising: a vacuum holder and a vacuum unit. The vacuum holder is arranged at the bottom of the base station, the vacuum unit is connected to the air outlet, and the vacuum unit is used to generate negative pressure.

[0067] It should be pointed out that the specific contents of the vacuum holder can be found in the description of the above embodiment, and for the sake of brevity, they will not be repeated here.

[0068] Corresponding to the above embodiment, the embodiment of the present application further provides a surface cleaning system, including a surface cleaning device and a base station. The surface cleaning device includes an adsorption unit, the adsorption unit is used to define a third sealed space with the surface to be cleaned, and the vacuum unit in the base station is connected to the third sealed space.

[0069] It should be pointed out that the specific content of the base station can be found in the description of the above embodiment, and for the sake of brevity, it will not be repeated here.

[0070] In the embodiments of the present application, "at least one" refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0071] Those of ordinary skill in the art will appreciate that the various units and algorithm steps described in the embodiments disclosed herein can be implemented in a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0072] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0073] In several embodiments provided in the present application, any function can be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as an independent product. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., and other media that can store program codes.

[0074] The above is only a specific implementation of the present application. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. The protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A vacuum holder, characterized in that: include: An upper shell, wherein the upper shell is provided with an air outlet and an air inlet; a lower shell, the upper shell being buckled onto the lower shell, forming a first sealed space between the upper shell and the lower shell, a concave cavity being provided at the bottom of the lower shell, the concave cavity being used to form a second sealed space with the supporting surface, and a communicating hole being provided in the lower shell, the communicating hole being used to connect the first sealed space and the second sealed space; an air outlet control unit, configured to control the air outlet of the air outlet holes so as to generate negative pressure in the first sealed space and the second sealed space, thereby adsorbing the vacuum holder onto the support surface; An air intake control unit is used to control the air intake of the air intake hole so that the air pressure in the first sealed space and the second sealed space gradually increases, making it easier to remove the vacuum holder from the support surface.

2. The vacuum holder according to claim 1, wherein: A one-way switch is also provided on the lower shell, which is used to open the connecting hole when the air pressure in the first sealed space is lower than the air pressure in the second sealed space, and to close the connecting hole when the air pressure in the first sealed space is higher than the air pressure in the second sealed space.

3. The vacuum holder according to claim 1, wherein: Also includes: A first flexible seal is provided between the upper shell and the lower shell, and is used to seal a gap between the upper shell and the lower shell.

4. The vacuum holder according to claim 3, wherein: Also includes: A first elastic member, wherein a first end of the first elastic member abuts against the bottom of the upper shell, and a second end of the first elastic member passes through the first flexible sealing member and abuts against the top of the lower shell.

5. The vacuum holder according to claim 4, wherein: There are multiple first elastic members, and the multiple first elastic members are evenly distributed around the first flexible sealing member.

6. The vacuum holder according to claim 1, wherein: Also includes: A second flexible seal is provided at the bottom of the lower shell, and is used to seal the gap between the lower shell and the supporting surface.

7. The vacuum holder according to claim 6, wherein: Also includes: A fixing member is used to fix the second flexible sealing member to the bottom of the lower shell.

8. The vacuum holder according to claim 7, wherein: There are multiple fixing members, and the multiple fixing members are evenly distributed around the second flexible sealing member.

9. The vacuum holder according to claim 6, wherein: Also includes: A second elastic member, wherein a first end of the second elastic member abuts against the bottom of the lower shell, and a second end of the elastic member abuts against the second flexible sealing member.

10. The vacuum holder according to claim 9, wherein: There are multiple second elastic members, and the multiple second elastic members are evenly distributed around the second flexible sealing member.

11. A base station for a surface cleaning device, characterized in that: include: The vacuum holder according to any one of claims 1 to 10, wherein the vacuum holder is arranged at the bottom of the base station; A vacuum unit is connected to the air outlet and is used to generate negative pressure.

12. A surface cleaning system, characterized in that: include: A surface cleaning device, the surface cleaning device comprising an adsorption unit, the adsorption unit being configured to define a third sealed space with the surface to be cleaned; In the base station according to claim 11, the vacuum unit is connected to the third sealed space.

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