Door closing device and cleaning appliance base station

Abstract

The utility model discloses a door closing device and a cleaning appliance base station, and relates to the technical field of cleaning appliances, the door closing device comprises a box body, a driving piece, a pushing part and a transmission assembly; a first mounting cavity, a second mounting cavity and a sliding groove which are sequentially communicated are formed in the box body, and the sliding groove extends towards the end part of the box body and penetrates through the end surface of the box body; the driving piece is embedded in the first mounting cavity; the pushing part is movably arranged in the sliding groove; the transmission assembly is arranged in the second mounting cavity and can convert high-speed low-torque power into low-speed high-torque power, and the driving part is in driving connection with the pushing part through the transmission assembly and drives one end of the pushing part to extend out of the box body so as to drive the door plate to close the opening of the cleaning appliance base station. According to the door closing device, the transmission assembly is arranged, and high-speed low-torque power is converted into low-speed high-torque power, so that the load borne by the output end of the motor is reduced, and the service life of the motor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning appliances, in particular to a door closing device and a cleaning appliance base station. Background Art

[0002] With the continuous advancement of science and technology, smart cleaning appliances have gradually become a must-have for cleaning in modern homes and commercial places due to their convenience and efficiency. This type of cleaning equipment can usually complete cleaning tasks such as sweeping and dust collection autonomously, and needs to return to the base station of the cleaning appliance, which provides a place for the cleaning device to dock and charge. Existing cleaning appliance base stations generally include a base station box with an opening, and a door panel set on the opening. When the cleaning appliance completes cleaning, it enters the base station box, and then the door panel is driven by the door closing device to close the opening of the base station box.

[0003] The existing door closing device of the base station includes a motor and a push rod, the output end of the motor is connected to the push rod, and the push rod is driven by the motor to move, so that the push rod drives the door panel to close. However, the existing door closing device has defects. When the motor drives the push rod to move, the output end of the motor bears a large load. Long-term high-load operation easily causes wear at the connection between the motor and the push rod, heat generation of the motor, and shortening of the service life of the motor. Utility Model Content

[0004] The main purpose of the utility model is to propose a door closing device and a cleaning appliance base station, aiming to solve the problem that the existing door closing device is prone to wear of the connection between the motor and the push rod, heating of the motor, and reduced service life of the motor due to heavy motor load during operation.

[0005] To achieve the above-mentioned purpose, the door closing device proposed in the utility model is used to control the closing of the door of a cleaning device, and the door closing device includes a housing, a driving member, a pushing part and a transmission assembly; a first mounting cavity, a second mounting cavity and a sliding groove which are connected in sequence are formed inside the housing, and the sliding groove extends toward the end of the housing and passes through the end surface of the housing; the driving member is embedded in the first mounting cavity; the pushing part is movably arranged in the sliding groove; the transmission assembly is arranged in the second mounting cavity, and the transmission assembly can convert high-speed and low-torque power into low-speed and high-torque power, and the driving member is connected to the pushing part through the transmission assembly, and drives one end of the pushing part to extend out of the housing to drive the door panel to close the opening of the cleaning device base station.

[0006] In one embodiment of the utility model, the transmission assembly includes at least two meshingly connected gears, a rack is provided on the surface of the pushing portion along its moving direction, the output end of the driving member is sleeved with one of the gears and is drivingly connected to the rack through at least another gear.

[0007] In one embodiment of the utility model, there are multiple gears, and each of the gears is an input gear, a first double gear, a second double gear and a third double gear that are meshed and connected in sequence. The input gear is sleeved on the output end of the driving member and is meshed and connected to the rack at one end of the third double gear away from the second double gear.

[0008] In one embodiment of the utility model, the cavity wall of the second mounting cavity is provided with a plurality of positioning columns, and every two of the positioning columns are arranged opposite to each other up and down. The end surfaces of the positioning columns facing the transmission component are provided with positioning grooves, and the positioning grooves extend perpendicularly to the rotation direction of the gears. The gear shafts at both ends of the first double gear, the second double gear and the third double gear are respectively inserted into the positioning grooves.

[0009] In one embodiment of the utility model, a baffle is provided between the first mounting cavity and the second mounting cavity, the baffle is provided with a socket, the shape of the first mounting cavity is adapted to the driving member, the output end of the driving member extends out of the socket and is drivingly connected to the transmission assembly.

[0010] In one embodiment of the utility model, the first mounting cavity is cylindrical in shape, the second mounting cavity is U-shaped, the first mounting cavity is located directly below the second mounting cavity, and the sliding groove is located on a side of the second mounting cavity having a U-shaped opening.

[0011] In one embodiment of the utility model, the box body includes an upper cover and a box body with an opening, the upper cover is detachably covered on the opening of the box body, and the driving member, the pushing part and the transmission assembly are all arranged in the box body.

[0012] In one embodiment of the utility model, the door closing device also includes a micro switch, which is disposed in the box body and is communicatively connected with the driving member. When the driving member drives the pushing part to complete door closing, the micro switch abuts against the pushing part, and the micro switch controls the closing of the driving member.

[0013] In one embodiment of the utility model, a push rod is provided at one end of the pushing portion away from the sliding groove, and a roller is installed on the push rod. The roller abuts against the bottom of the sliding groove to drive the push rod and the pushing portion to slide along the sliding groove.

[0014] The utility model also provides a cleaning tool base station, the cleaning tool base station comprising a base station box, a door panel and a door closing device as claimed in any one of claims 1 to 4;

[0015] The base station box is formed with a receiving cavity having an opening, the receiving cavity is used to receive a cleaning tool, the door panel is movably covered on the opening and is drivingly connected to the door closing device.

[0016] The door closing device proposed in the utility model includes a housing, a driving member, a pushing part and a transmission assembly. The housing is provided with a first installation cavity, a second installation cavity and a sliding groove which are connected in sequence, and the sliding groove extends toward the end of the housing and passes through the end surface of the housing. The driving member is arranged in the first installation cavity, the pushing part is movably arranged in the sliding groove, and the transmission assembly is arranged in the second installation cavity. At the same time, the driving member is connected to the pushing part through the transmission assembly, and can drive the pushing part to extend to the outside of the housing through the sliding groove, thereby driving the door panel of the cleaning tool base station to close the opening of the base station, and realize the function of closing the door. The transmission assembly can be a gear set structure or a worm gear structure, which can convert high-speed and low-torque power into low-speed and high-torque power, thereby reducing the load on the power output end of the motor and improving the service life of the motor. In addition, the driving member and the transmission assembly are respectively installed in different installation cavities, thereby improving the stability of the structure and the convenience during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of the door closing device provided by the utility model;

[0019] Figure 2 An exploded view of the door closing device provided by the utility model;

[0020] Figure 3 A structural schematic diagram of a box body from one perspective in a door closing device provided by the utility model;

[0021] Figure 4 This is a structural schematic diagram of the box body in the door closing device provided by the utility model from another perspective;

[0022] Figure 5 The present invention is a schematic structural diagram of an upper cover in a door closing device provided by the present invention.

[0023] Description of Figure Numbers:

[0024] 10. Box body; 11. Upper cover; 12. Box body; 13. First installation cavity; 14. Second installation cavity; 141. Positioning column; 141a. Positioning slot; 142. Insertion hole; 15. Sliding slot; 20. Driving member; 30. Pushing part; 31. Rack; 40. Transmission assembly; 41. Input gear; 42. First double gear; 43. Second double gear; 44. Third double gear; 50. Micro switch; 61. Spring; 62. Push rod; 63. Roller.

[0025] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0029] The utility model provides a door closing device, which is used for controlling the door closing of a cleaning appliance.

[0030] Combination Figures 1 to 4As shown, in one embodiment of the utility model, the door closing device includes a housing 10, a driving member 20, a pushing portion 30 and a transmission assembly 40; a first mounting cavity 13, a second mounting cavity 14 and a sliding groove 15 which are connected in sequence are formed inside the housing 10, and the sliding groove 15 extends toward the end of the housing 10 and passes through the end surface of the housing 10; the driving member 20 is embedded in the first mounting cavity 13; the pushing portion 30 is movably disposed in the sliding groove 15; the transmission assembly 40 is disposed in the second mounting cavity 14, and the transmission assembly 40 can convert high-speed and low-torque power into low-speed and high-torque power, and the driving member 20 is driven and connected to the pushing portion 30 through the transmission assembly 40, and drives one end of the pushing portion 30 to extend out of the housing 10 to drive the door panel to close the opening of the cleaning appliance base station.

[0031] In this embodiment, the door closing device is applied to the door closing structure of the intelligent cleaning appliance base station, and the intelligent cleaning appliance can be a vacuum cleaner, a floor scrubber and other appliances. The shapes of the first installation cavity 13, the second installation cavity 14 and the sliding groove 15 inside the box body 10 are designed according to the shapes of the driving member 20, the transmission assembly 40 and the pushing portion 30, respectively, so that the shapes are adapted to each other. The driving member 20, the transmission assembly 40 and the pushing portion 30 are arranged in three different spaces for easy assembly and fixation. The first installation cavity 13 and the second installation cavity 14 are connected to facilitate the driving connection between the output end of the driving member 20 and the transmission assembly 40; the second installation cavity 14 and the sliding groove 15 are connected to facilitate the driving connection between the transmission assembly 40 and the pushing portion 30.

[0032] The driving member 20 is embedded in the first installation cavity 13, and a DC brushed motor is used as the driving member 20. The output shaft of the motor is connected to the transmission assembly 40 to achieve rapid response and drive the transmission assembly 40 to drive the pusher 30 to move. Specifically, the driving member 20 can be installed in the first installation cavity 13 by threaded connection, clamping, etc.

[0033] The pusher 30 is movably disposed in the sliding groove 15, and can be slidably connected to the sliding groove 15 or can be rollingly connected. At least one end of the sliding groove 15 passes through the box body 10, so that one end of the pusher 30 can extend to the outside of the box body 10 under the drive of the driving member 20 and drive the door panel to close.

[0034] The transmission assembly 40 is disposed in the second installation cavity 14. The transmission assembly 40 can be a gear set or a worm gear structure, which can convert the high-speed and low-torque power output by the motor into low-speed and high-torque power, thereby converting the lower output torque of the driving member 20 into a larger torque and transmitting it to the pushing part 30 to drive the pushing part 30 to move, thereby achieving smooth closing of the base station door panel.

[0035] The present application reduces the load on the motor power output end and increases the service life of the motor by providing the transmission assembly 40. In addition, the drive member 20 and the transmission assembly 40 are respectively installed in different installation cavities, thereby improving the stability of the structure and the convenience of installation.

[0036] Combination Figure 2 As shown, in one embodiment of the utility model, the transmission assembly 40 includes at least two meshing gears, a rack 31 is provided on the surface of the pushing portion 30 along its moving direction, and a gear is sleeved on the output end of the driving member 20 and is driven and connected to the rack 31 through at least another gear.

[0037] In this embodiment, the output end of the driving member 20 is sleeved with a gear, and is drivingly connected to the rack 31 of the pushing portion 30 through at least another gear. Of course, multiple gears may be meshed in sequence to achieve the purpose of converting a higher speed and a lower torque into a lower speed and a higher torque by changing the number of teeth of the gears. The rack 31 is provided on the pushing portion 30, and the rack 31 extends along the extension direction of the pushing portion 30, so that the rotational motion of the gear is converted into the linear motion of the pushing portion 30 through the rack 31, thereby achieving the purpose of closing the door.

[0038] Combination Figure 2 As shown, in one embodiment of the utility model, there are multiple gears, and the gears are an input gear 41, a first double gear 42, a second double gear 43 and a third double gear 44 that are meshed and connected in sequence. The input gear 41 is sleeved on the output end of the driving member 20, and is meshed and connected to the rack 31 at one end of the third double gear 44 away from the second double gear 43.

[0039] In this embodiment, the double gear is composed of two coaxial gears spaced apart from each other, and the two gears have different diameters or numbers of teeth. Therefore, when the transmission assembly 40 is installed, the input gear 41 can be meshed and connected with the lower gear of the first double gear 42, the upper gear of the second double gear 43 can be meshed and connected with the lower gear of the third double gear 44, and then the upper gear of the third double gear 44 can be meshed and connected with the rack 31. Since the upper and lower gears of the double gear have different numbers of teeth or diameters, the conversion of high and low speeds and large and small torques can be achieved through the double gears. Compared with the connection structure using a single gear meshing in sequence, the solution provided in this embodiment can improve the transmission efficiency and transmission stability of the transmission assembly 40 and reduce the loss of mechanical energy.

[0040] In addition, the number of double gears is not limited to three in this embodiment and can be adjusted accordingly according to actual needs.

[0041] Combination Figure 3 and Figure 5As shown, in one embodiment of the utility model, the cavity wall of the second installation cavity 14 is provided with a plurality of positioning columns 141, and every two positioning columns 141 are arranged opposite to each other up and down. The end surface of the positioning column 141 facing the transmission component 40 is provided with a positioning groove 141a, and the positioning groove 141a extends perpendicular to the rotation direction of the gear, and the gear shafts at both ends of the first double gear 42, the second double gear 43 and the third double gear 44 are respectively inserted into the positioning groove 141a.

[0042] In this embodiment, the positioning column 141 disposed on the cavity wall of the second installation cavity 14 corresponds to the gear shaft of each double gear, and the shape and size of the positioning groove 141a are adapted to the gear shaft.

[0043] Therefore, when installing the transmission assembly 40, the first double gear 42, the second double gear 43 and the third double gear 44 can be installed and positioned by the positioning column 141 and the positioning groove 141a on the second installation cavity 14, which improves the convenience of installation. At the same time, it can also reduce the axial deviation of the double gears caused during installation, and improve the matching accuracy and transmission stability between the first double gear 42, the second double gear 43 and the third double gear 44. The positioning column 141 is designed with high-strength engineering plastic or metal material to ensure mechanical properties and wear resistance.

[0044] Combination Figure 3 and Figure 4 As shown, in one embodiment of the utility model, a baffle is arranged between the first mounting cavity 13 and the second mounting cavity 14, and the baffle is provided with a socket 142. The shape of the first mounting cavity 13 is adapted to the driving member 20, and the output end of the driving member 20 extends out of the socket 142 and is driven and connected to the transmission assembly 40.

[0045] In this embodiment, the baffle separates the driver 20 and the transmission assembly 40 into two chambers. When assembling, the driver 20 is embedded in the first installation chamber 13, and the transmission assembly 40 is installed in the second installation chamber 14, which improves the aesthetics of the overall structure layout, avoids the problem of interference between different components, and facilitates assembly by assemblers. At the same time, the cavity wall of the first installation chamber 13 fits the outer wall of the driver 20 and forms a limit for the driver 20, thereby improving the stability of the driver 20.

[0046] At the same time, the transmission assembly 40 is installed on the baffle, and a socket 142 is set on the baffle. The output end of the driver 20 passes through the socket 142 and extends into the second installation cavity 14, so that the transmission assembly 40 can be better matched and connected with the output end of the driver 20.

[0047] The baffle and the box body 10 may be connected by bolts or welding, or an integrally formed structure to improve the overall stability and reliability.

[0048] Combination Figure 3 and Figure 4 As shown, in one embodiment of the present invention, the first mounting cavity 13 is cylindrical in shape, the second mounting cavity 14 is U-shaped, the first mounting cavity 13 is located directly below the second mounting cavity 14, and the sliding groove 15 is located on one side of the second mounting cavity 14 having a U-shaped opening.

[0049] In this embodiment, the cylindrical design of the first mounting cavity 13 enables the driving member 20 to be stably embedded therein, thereby improving the stability of the driving member 20. The first mounting cavity 13 is disposed below the second mounting cavity 14 to reduce the lateral dimension of the second mounting cavity 14, so as to facilitate the design of the sliding groove 15 and the pushing portion 30 closer to the transmission assembly 40, thereby reducing the lateral dimension of the door closing device.

[0050] In addition, the second installation cavity 14 is designed to be U-shaped, and the U-shaped space is convenient for matching with each gear, reducing the circumferential size of the second installation cavity 14. At the same time, the opening of the U-shaped second installation cavity 14 is connected with the sliding groove 15, so that part of the transmission assembly 40 extends out of the second installation cavity 14 and is drivingly connected with the push portion 30. Therefore, the solution of this embodiment provides sufficient space for the transmission assembly 40, and facilitates the installation and matching of the transmission assembly 40 and the push portion 30.

[0051] Combination Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the box body 10 includes an upper cover 11 and a box body 12 with an opening, the upper cover 11 is detachably covered at the opening of the box body 12, and the driving member 20, the pushing part 30 and the transmission assembly 40 are all arranged in the box body 12.

[0052] In this embodiment, the upper cover 11 and the box body 12 are detachably designed, which is convenient for maintenance and replacement of the internal driving member 20, the pushing part 30 and the transmission assembly 40. A plurality of threaded holes are provided on the surface of the upper cover 11 and the peripheral side of the box body 12, and the upper cover 11 and the box body 12 are threadedly connected by threaded connectors. The opening design of the box body 12 provides sufficient installation space for the driving member 20, the pushing part 30 and the transmission assembly 40. In addition, the connection method of the upper cover 11 and the box body 12 can also be a snap connection.

[0053] It can be understood that when the first installation cavity 13 is located below the second installation cavity 14 and the sliding groove 15 is located on one side of the U-shaped opening of the second installation cavity 14, the box body 12 has two upper and lower openings; one opening is located below the box body 12 and is connected to the first installation cavity 13 to facilitate the installation of the drive member 20; the other opening is located above the box body 12 and is connected to the second installation cavity 14 and the sliding groove 15 to facilitate the installation of the push part 30 and the transmission assembly 40.

[0054] The surface of the upper cover 11 can also be subjected to special anti-corrosion treatment to improve its corrosion resistance and service life. The surface of the upper cover 11 and the interior of the box body 12 are also designed with reinforcing ribs to improve their overall mechanical strength and anti-deformation ability.

[0055] Combination Figure 2 As shown, in one embodiment of the utility model, the door closing device also includes a micro switch 50, which is disposed in the box body 10 and is communicated with the driving member 20. When the driving member 20 drives the pushing part 30 to complete door closing, the micro switch 50 abuts against the pushing part 30, and the micro switch 50 controls the closing of the driving member 20.

[0056] In this embodiment, the micro switch 50 may be a contact switch, and the movement of the push portion 30 presses the micro switch 50 to control the closing of the driving member 20. In other embodiments, the micro switch 50 may also be a non-contact optical sensor, which senses the position of the push portion 30 to determine whether the door closing is completed and control the closing of the driving member 20.

[0057] When the cleaning tool completes cleaning and returns to its original position in the base station, the driver triggers the start-up drive member 20, which drives the push rod 62 to move and close the door. When the push rod 62 touches the micro switch 50, the drive member 20 stops driving and the door closing action is completed. In addition, when the push rod 62 is reset, the micro switch 50 is also used to control the shutdown of the drive member 20.

[0058] Combination Figure 2 and Figure 3 As shown, in one embodiment of the utility model, a push rod 62 is provided at one end of the pushing portion 30 that is away from the sliding groove 15, and a roller 63 is installed on the push rod 62. The roller 63 abuts against the bottom of the sliding groove 15 to drive the push rod 62 and the pushing portion 30 to slide along the sliding groove 15.

[0059] In this embodiment, the roller 63 is provided to reduce friction and improve the convenience of the pushing part 30 when moving along the sliding groove 15. The end of the pushing part 30 that is away from the sliding groove 15 is provided with a mounting groove, one end of the push rod 62 is inserted into the mounting groove and is movably connected with the pushing part 30, and the push rod 62 can move a distance relative to the pushing part 30 along the moving direction of the pushing part 30. At the same time, a spring 61 is provided between the push rod 62 and the bottom of the mounting groove, so when the pushing part 30 is retracted into the sliding groove 15, the push rod 62 abuts against the side wall of the box body 10, and then elastically presses against the pushing part 30 through the spring 61, which plays a role of stopping and limiting the pushing part 30, and buffering when the movement stops.

[0060] The utility model also proposes a cleaning tool base station, which includes a base station box, a door panel and a door closing device. The specific structure of the door closing device refers to the above embodiment. Since the cleaning tool base station adopts all the technical solutions of all the embodiments of the above door closing device, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0061] The base station box is formed with a receiving cavity with an opening, the receiving cavity is used to receive cleaning tools, a movable cover of a door panel is provided at the opening, and is connected to the door closing device. A sensing controller is provided in the base station box, which is used to collect the position information of the cleaning tools. When the cleaning tools are returned to their positions, the sensing controller controls the driving member 20 to open, and completes the door closing action through the transmission assembly 40 and the pusher 30.

[0062] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A door closing device, used to control the door closing of a cleaning tool base station, characterized in that: The door closing device comprises: A box body, wherein a first installation cavity, a second installation cavity and a sliding groove are formed in the box body and are connected in sequence, and the sliding groove extends toward the end of the box body and passes through the end surface of the box body; A driving member, wherein the driving member is embedded in the first mounting cavity; a pushing portion, the pushing portion being movably disposed in the sliding groove; and A transmission assembly is arranged in the second mounting cavity, and the transmission assembly can convert high-speed and low-torque power into low-speed and high-torque power. The driving member is connected to the pushing part through the transmission assembly, and drives one end of the pushing part to extend out of the box body to drive the door panel to close the opening of the cleaning tool base station.

2. The door closing device according to claim 1, characterized in that: The transmission assembly includes at least two meshing gears, a rack is provided on the surface of the pushing portion along its moving direction, an output end of the driving member is sleeved with one of the gears and is drivingly connected to the rack through at least another gear.

3. The door closing device according to claim 2, characterized in that: There are multiple gears, and the gears are respectively an input gear, a first double gear, a second double gear and a third double gear that are meshed and connected in sequence. The input gear is sleeved on the output end of the driving member and is meshed and connected to the rack at one end of the third double gear away from the second double gear.

4. The door closing device according to claim 3, characterized in that: The cavity wall of the second mounting cavity is provided with a plurality of positioning columns, and every two of the positioning columns are arranged opposite to each other up and down. The end faces of the positioning columns facing the transmission component are provided with positioning grooves, and the positioning grooves extend perpendicular to the rotation direction of the gears. The gear shafts at both ends of the first double gear, the second double gear and the third double gear are respectively inserted into the positioning grooves.

5. The door closing device according to any one of claims 1 to 4, characterized in that: A baffle is provided between the first installation cavity and the second installation cavity, and a plug hole is provided on the baffle. The shape of the first installation cavity is adapted to the driving member, and the output end of the driving member extends out of the plug hole and is drivingly connected to the transmission assembly.

6. The door closing device according to claim 5, characterized in that: The first mounting cavity is cylindrical in shape, the second mounting cavity is U-shaped in shape, the first mounting cavity is located directly below the second mounting cavity, and the sliding groove is located on a side of the second mounting cavity having a U-shaped opening.

7. The door closing device according to any one of claims 1 to 4, characterized in that: The box body comprises an upper cover and a box body with an opening, wherein the upper cover is detachably covered on the opening of the box body, and the driving member, the pushing part and the transmission assembly are all arranged in the box body.

8. The door closing device according to any one of claims 1 to 4, characterized in that: The door closing device also includes a micro switch, which is arranged in the box and is communicatively connected with the driving member. When the driving member drives the pushing part to complete door closing, the micro switch abuts against the pushing part, and the micro switch controls the driving member to close.

9. The door closing device according to any one of claims 1 to 4, characterized in that: A push rod is provided at one end of the pushing portion that is away from and extends out of the sliding groove. A roller is installed on the push rod. The roller abuts against the bottom of the sliding groove to drive the push rod and the pushing portion to slide along the sliding groove.

10. A cleaning tool base station, characterized in that: The cleaning appliance base station comprises a base station box, a door panel and a door closing device as claimed in any one of claims 1 to 9; The base station box is formed with a receiving cavity having an opening, the receiving cavity is used to receive a cleaning tool, the door panel is movably covered on the opening and is drivingly connected to the door closing device.

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