Cleaning head and vacuum cleaner

Abstract

The present invention provides a cleaning head, comprising a shell and a brush rod, wherein the two ends of the shell are respectively provided with a first side plate and a second side plate, the shell defines a cavity, the brush rod comprises an outer cylinder and a motor, the motor comprises a stator and a rotor, the first end of the outer cylinder is rotatably connected to the first side plate, the rotor is used to drive the outer cylinder to rotate, the second end of the outer cylinder is provided with an electric connector, the electric connector is relatively fixed to the stator, the electric connector is electrically connected to the motor, the second side plate has a slot and another electric connector, the brush rod can be inserted into the cavity from the opening of the cavity, so that the electric connector is inserted into the slot and the electric connector is electrically connected to the other electric connector, the second side plate is connected with a pressing plate, the pressing plate is used to press and fix the electric connector in the slot, and the user can replace the brush rod by himself and realize the connection between the motor and the external circuit.

Description

Technical Field

[0001] The present invention relates to the technical field of handheld vacuum cleaners, and in particular to a cleaning head and a vacuum cleaner. Background Art

[0002] The cleaning head for a vacuum cleaner includes a brush rod located in a shell. The brush rod is driven by a motor to rotate the brush rod relative to the shell to clean the surface to be cleaned and enter the cavity of the shell, and then the debris in the cleaning head is sucked away by the connected negative pressure device. In order to save space in the cleaning head, a motor is arranged in the brush rod, and the brush rod is rotated by the motor located in the brush rod. At present, for a brush rod of this structure, the outer tube of the brush rod is directly fixed to the shell of the cleaning head, and the user cannot disassemble it by himself. The motor is directly connected to the circuit in the shell. When the motor is damaged, the user cannot replace the brush rod by himself. Summary of the invention

[0003] In view of this, in order to solve one of the technical problems in the related art to a certain extent, it is necessary to provide a cleaning head and a vacuum cleaner, so that users can replace the brush rod by themselves and connect the motor to the external circuit.

[0004] The present invention provides a cleaning head, comprising a shell and a brush rod, wherein the two ends of the shell are respectively provided with a first side plate and a second side plate, the shell defines a cavity, the brush rod comprises an outer cylinder and a motor at least partially arranged in the outer cylinder, the motor comprises a stator and a rotor, the first end of the outer cylinder is rotatably connected to the first side plate, the rotor is used to drive the outer cylinder to rotate, the second end of the outer cylinder is provided with an electric connector, the electric connector is relatively fixed to the stator, the electric connector is electrically connected to the motor, the second side plate has a slot and another electric connector, the brush rod can be placed in the cavity from the opening of the cavity, so that the electric connector is inserted into the slot and the electric connector is electrically connected to the other electric connector, the second side plate is connected to a pressing plate, the pressing plate is used to press and fix the electric connector in the slot.

[0005] Furthermore, one end of the pressure plate is rotatably connected to the second side plate, and a movable buckle is provided on the second side plate, and the movable buckle is used to buckle the other end of the pressure plate so that the pressure plate presses the electrical connector into the slot, and to release the other end of the pressure plate so that the pressure plate releases the pressing state of the electrical connector.

[0006] Furthermore, the second end of the outer cylinder is connected to the electrical connector via a bearing.

[0007] Furthermore, the first side plate is connected with an axial connector, and the axial connector is plugged into the first end of the brush rod to achieve a rotational connection between the brush rod and the first side plate.

[0008] Furthermore, air vents are provided at the first and second ends of the outer cylinder, an air flow channel located inside the outer cylinder is formed between the air vents, the motor is arranged in the air flow channel, the rotor is connected to fan blades, and the fan blades rotate with the rotor to allow external air to pass through the air vents and flow in the air flow channel.

[0009] Furthermore, the air vent is provided on the electrical connector, the first side panel is provided with a first air vent at a position corresponding to the air vent at one end, and the second side panel is provided with a second air vent at a position corresponding to the electrical connector, so that air outside the shell can flow into or out of the air flow channel through the first air vent and the second air vent.

[0010] The invention also provides a vacuum cleaner which adopts the cleaning head.

[0011] It can be seen from the above scheme that the present invention has the following beneficial effects: the motor of the present invention is at least partially arranged in the outer cylinder of the brush rod, the motor rotor is used to drive the outer cylinder to rotate, and the second end of the outer cylinder is provided with an electrical connector, the electrical connector is relatively fixed to the motor stator, the second side plate has a slot and another electrical connector, the pressing plate is opened, the brush rod is placed into the cavity from the opening of the cavity, the electrical connector is inserted into the slot, the electrical connector is electrically connected to another electrical connector, so that the circuit in the cleaning head shell is connected to the motor circuit, the pressing plate is locked, and the pressing plate presses the electrical connector and fixes it in the slot. When the brush rod is disassembled, the pressing plate is released, so that the brush rod can be taken out of the cavity, so that the user can replace the brush rod by himself. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the cleaning head of the present invention.

[0013] Figure 2 It is a partial cross-sectional view of the cleaning head of the present invention.

[0014] Figure 3 This is a cross-sectional view of the present invention after the brush rod is taken out.

[0015] Figure 4 It is an assembly schematic diagram of the present invention.

[0016] Figure 5 It is a schematic structural diagram of the brush rod of the present invention.

[0017] Figure 6 for Figure 3 Enlarged view of point A.

[0018] Figure 7 for Figure 1 Partial cross-section view at AA.

[0019] Figure 8 It is a schematic diagram of the structure of the air duct of the present invention.

[0020] Fig. 9 It is a schematic structural diagram of the outer cylinder of the present invention.

[0021] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present invention. It is understood that the drawings are only provided for reference and illustration, and are not used to limit the present invention. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0023] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to another component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as those generally understood by technicians in the technical field of the present invention. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0024] It should also be noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] See also Figure 1-3 As shown, Figure 1 The structure of the cleaning head 100 is shown. Figure 2The cross-sectional structure of the cleaning head 100 is shown. The cleaning head 100 includes a housing 110 and a brush bar 120 connected to the housing 110. The housing 110 is connected to an adapter 200. When viewed from the front, the adapter 200 is perpendicular to the axial center O of the brush bar 120 and is connected to a connecting rod (not shown) through the adapter 200. The connecting rod is further connected to a negative pressure device (not shown) to form a vacuum cleaner.

[0026] The housing 110 defines a cavity 111, and the brush rod 120 is at least partially accommodated in the cavity 111. The housing 110 has a first side plate 11 and a second side plate 12 at both ends of the cavity 111, the housing 110 has a top plate 13 above the cavity 111, and the housing 110 has a rear side portion 14 behind the cavity 111. The top plate 13, the rear side portion 14, the first side plate 11, and the second side plate 12 jointly define an opening 112 of the cavity 111, and the brush rod 120 is exposed through the opening 112. The first side plate 11 and the second side plate 12 can be formed integrally with the rear side portion 14.

[0027] A roller 15 is also provided at the bottom of the rear portion 14 . The roller 15 is partially accommodated in the housing 110 and the lower part thereof extends out of the bottom surface of the housing 110 . The roller 15 slightly suspends the housing 110 so that there is a small gap between the housing 110 and the surface to be cleaned.

[0028] Combination Figure 4 The brush bar 120 has a first end 41 and a second end 42. The brush bar 120 is arranged transversely along the axial center O. The first end 41 is connected to the first side plate 11, and the second end 42 is connected to the second side plate 12. The lower end of the brush bar 120 and the bottom surface of the rear part 14 form a debris inlet 16. The brush bar 120 and the rear part 14 together define a debris collection chamber 17. The rear part 14 is provided with a debris outlet 141, and the debris outlet 141 is connected to the debris collection chamber 17. When the brush bar 120 rotates around the rotation axis O, the debris attached to the surface to be cleaned will be swept into the debris collection chamber 17. The negative pressure device generates negative pressure, so that the debris in the debris collection chamber 17 enters the negative pressure device from the debris outlet 141, and the dirty air is filtered by the negative pressure device, and the filtered air is discharged from the air outlet on the negative pressure device.

[0029] Combination Figure 5The brush bar 120 includes an outer tube 21 and a flexible brush layer 22 arranged on the outer periphery of the outer tube 21. The flexible brush layer 22 is used to clean or stick to the debris attached to the surface to be cleaned. The brush bar 120 is driven by a motor 23 to rotate relative to the shell 110. The motor 23 is at least partially arranged in the outer tube 21. In a specific embodiment of the present invention, the motor 23 is completely arranged in the outer tube 21. The motor 23 includes a stator 231 and a rotor 232. The rotor 232 is connected to the outer tube 21 to drive the outer tube 21 to rotate, and the stator 231 is fixed relative to the shell 110. In this way, when the cleaning head 100 is working, the stator 231 is stationary relative to the shell 110, and the rotor 232 causes the brush bar 120 to rotate. The motor 23 can be an external rotor motor 23.

[0030] The first end 211 of the outer cylinder 21 is rotatably connected to the first side plate 11. A shaft connector 30 is fixed to the first side plate 11, and the shaft connector 30 is plugged with the first end 41 of the brush rod 120 to realize the rotatable connection between the brush rod 120 and the first side plate 11.

[0031] The second end 212 of the outer cylinder 21 is provided with an electric connector 24, and the electric connector 24 includes a housing 241 and an electric connection point 242 installed through the housing 241. The housing 241 serves as an end housing, and is rotatably connected to the second end 212 of the outer cylinder 21 through a bearing 25. The electric connector 24 is electrically connected to the motor 23, and the electric connector 24 is used to be electrically connected to another electric connector 123 on the second side plate 12, and the other electric connector 123 can be electrically connected to the negative pressure device, so that an external power supply and / or a control signal is input to the motor 23 through the electric connector 24 to make the motor 23 work or be controlled.

[0032] The electrical connector 24 is fixed to the stator 231 through the sleeve 26, so that the electrical connector 24 and the stator 231 are relatively fixed, so that the center of gravity of the motor 23 is approximately located at the axial center of the outer cylinder 21, and the center of gravity of the brush rod 120 generally changes with the change of the position of the motor 23. When the center of gravity of the motor 23 is approximately located at the axial center of the outer cylinder 21, the center of gravity of the brush rod 120 is approximately located at the axial center. Therefore, when the user pushes the cleaning head 100 to move along the surface to be cleaned, the thrust intersects with the center of gravity of the brush rod 120, and it is not easy to make the cleaning head 100 deviate to one end, which is more labor-saving. Of course, when the effect of the center of gravity is not considered, the electrical connector 24 can also be directly fixed to the stator 231.

[0033] See also Figure 6The second side plate 12 has a slot 121, which faces the opening 112 of the cavity 111. The brush rod 120 is placed in the cavity 111 from the opening 112. The first end 41 of the brush rod 120 is obliquely plugged with the shaft connector 30, and the electrical connector 24 located at the second end 42 is placed in the slot 121, so that the electrical connector 24 is electrically connected to another electrical connector 123 on the second side plate 12. A pressing plate 31 is connected to the second side plate 12, and the pressing plate 31 is used to press and fix the electrical connector 24 in the slot 121. The user can open the pressing plate 31 to remove the brush rod 120 from the cavity 111 for cleaning or maintenance. It can be understood that the first end of the brush rod 120 can also be pressed by another pressing plate 31 set on the first side plate 11, so that the first end of the brush rod 120 can be rotatably connected to the first side plate 11.

[0034] In this embodiment, one end of the pressing plate 31 is hinged to the second side plate 12 so that the pressing plate 31 can rotate to press the electrical connector 24 into the slot 121 or release the pressing state of the electrical connector 24. A movable buckle 32 ( Figure 1 ), the movable buckle 32 is used to fasten or release the other end of the pressure plate 31. When the pressure plate 31 is in the fastened state, the electrical connector 24 is pressed in the slot 121. When the pressure plate 31 is in the released state, the electrical connector 24 is released from the fastened state.

[0035] See also Figure 7 A first magnetic body 51 is provided on the movable buckle 32, and a second magnetic body 52 corresponding to the position of the first magnetic body 51 is provided on the pressure plate 31. The same poles of the first magnetic body 51 and the second magnetic body 52 are opposite to each other. After the movable buckle 32 releases the pressure plate, the first magnetic body 51 and the second magnetic body 52 repel each other and cause the pressure plate to bounce up. It is understandable that the first magnetic body 51 can also be provided on the second side plate 12.

[0036] The movable buckle 32 extends out of the outer side surface of the second side plate 12 for the user to press. The movable buckle 32 includes a sliding portion 321 and a hook portion 322. The sliding direction of the sliding portion 321 is parallel to the second side plate 12. The user presses the movable buckle 32 on the outer side surface of the second side plate 12 and along the outer side surface. The pressure plate 31 has a slide groove 301, and a tongue 302 is formed on the side wall of the slide groove 301. The hook portion 322 is inserted into the slide groove 301 and moves in the slide groove 301 to achieve the engagement or disengagement of the hook portion 322 and the tongue 302. The first magnetic body 51 is arranged on the hook portion 322, and the second magnetic body 52 is arranged on the bottom surface of the slide groove 301. The movable buckle 32 is connected to a pre-tightening spring 33, and the pre-tightening spring 33 provides a pre-tightening force for the movable buckle 32, so that the movable buckle 32 remains in a fastened state against the other end of the pressure plate 31.

[0037] It can be understood that in other embodiments, a slot can also be provided on the first side plate 11, and the slot can be roughly semicircular in shape, and another pressing plate can be provided on the first side plate 11. The first end of the brush rod 120 can be inserted into the slot of the first side plate 11 and pressed by another pressing plate provided on the first side plate 11, so that the first end of the brush rod 120 can be rotatably connected to the first side plate 11.

[0038] It can be understood that in other embodiments, the motor 23 may be arranged in the shell 100 instead of the outer cylinder 21. The motor 23 drives the brush rod 120 to rotate as a whole through gears. Both ends of the brush rod 120 are rotatably connected to the shell. At this time, the slot 121 arranged on the second side plate 12 can be transformed into a semicircular shape, and the second end of the brush rod 120 is inserted into the slot 121 on the second side plate 12. The pressing plate 31 presses the end of the brush rod 120 so that the second end of the brush rod 120 is rotatably connected to the second side plate 12. The brush rod 120 can be taken out by opening the pressing plate 31.

[0039] Continue reading Figure 5 The first end 211 and the second end 212 of the outer tube 21 are both provided with air vents 40. The air vent 40 located at the first end 211 is arranged on the outer shell 241 of the electrical connector 24, and the air vent 40 located at the second end 212 is arranged on the other end shell 201.

[0040] An airflow channel 130 is formed between the air vents 40 and is located inside the outer cylinder 21. The airflow channel 130 is formed transversely inside the outer cylinder 21. The motor 23 is disposed in the airflow channel 130, and the rotor 232 is connected to the fan blades 233. When the rotor 232 rotates the outer cylinder 21 around the rotation axis, the fan blades 233 also rotate with the rotor 232, thereby disturbing the air to form an air flow, and the air flow flows in the airflow channel 130 through the air vents 40, so that the heat emitted by the motor 23 located in the airflow channel 130 during operation can flow out of the brush bar 120 along with the air flow.

[0041] The first side panel 11 is provided with a first vent 101 at a position corresponding to the vent 40 at the first end, and the second side panel 12 is provided with a second vent 102 at a position corresponding to the electrical connector 24. The air outside the shell 110 passes through the first vent 101 and the second vent 102 and enters or flows out of the aligned vent 40, so that the air outside the shell 110 flows into or flows out of the air flow channel 130.

[0042] The motor 23 may have an air inlet 251 and an air outlet 252. Air can enter the motor 23 from the air inlet 251 and flow out of the motor 23 from the air outlet 252, so that the heat inside the motor 23 is quickly dissipated, and the motor 23 is cooled. The gap between the stator 231 and the rotor 232 can be used as the air outlet 252. The motor 23 can be tightly connected to the air flow channel 130, so that air can completely enter the motor 23 from the air inlet 251 and flow out from the air outlet 252. In other embodiments, a small hole can be opened in the sleeve 26 for ventilation, so that air can flow through the stator 231.

[0043] The motor 23 includes an air duct 234 which is sealed to the outside of the rotor 232. The air duct 234 surrounds the outer circumference of the rotor 232. The air duct 234 is connected to the outer cylinder 21. The first end of the air duct 234 extends to the first end 211 of the outer cylinder 21 and is sealed to the outer cylinder 21. The fan blades 233 are arranged in the air duct 234. The air duct 234 and the sleeve 26 form an air flow channel 130. The air inlet 251 and the air outlet 252 are arranged opposite to each other. The air inlet 251 can be arranged on the end face of the first end of the motor 23, and the air outlet 252 can be arranged on the end face of the second end of the motor 23.

[0044] A control board 27 is mounted in the sleeve 26 , and the control board 27 is electrically connected to the motor 23 and the electrical connection points, so that the air flow can also cool the control board 27 .

[0045] like Figure 8 and Fig. 9 As shown, the outer side surface of the air duct 234 is provided with two groups of ribs 230, which are arranged opposite to each other and extend spirally around the axis of the air duct 234, and the inner side surface of the outer cylinder 21 is correspondingly provided with another two groups of ribs 240, which are arranged opposite to each other and extend spirally around the axis of the outer cylinder 21.

[0046] Each group of ribs 230 on the outer side of the air duct 234 includes a first rib 202 and a second rib 204. The first rib 202 and the second rib 204 extend spirally around the axis of the air duct 234 at intervals. The first rib 202 and the second rib 204 are inclined outwardly and in opposite directions.

[0047] Each group of ribs 240 on the inner side of the outer cylinder 21 includes a third rib 206 and a fourth rib 208. The third rib 206 and the fourth rib 208 are spaced apart and spirally extend around the axis of the outer cylinder 21. The third rib 206 and the fourth rib 208 are radially outwardly inclined and have opposite inclination directions. The first rib 202 and the third rib 206 have the same inclination direction, and the second rib 204 and the fourth rib 208 have the same inclination direction.

[0048] Specifically, optionally, the first rib 202 and the second rib 204 are inclined radially inwardly in a manner of facing each other, and the third rib 206 and the fourth rib 208 are inclined radially outwardly in a manner of facing each other.

[0049] The air duct 234 is spirally inserted from the end of the outer tube 21 along the third rib 206 and the fourth rib 208, the first rib 202 and the second rib 204 are located between the third rib 206 and the fourth rib 208, the first rib 202 and the third rib 206 cooperate, and the second rib 204 and the fourth rib 208 cooperate to clamp and fix the air duct 234 and the outer tube 21. This structure is convenient for fixing the air duct 234 and the outer tube 21, and is easy to manufacture and can save manufacturing costs.

[0050] Return to Reference Figure 2 and Figure 3 A first scraper 310 is provided in the housing 110, and the first scraper 310 is placed in the debris collection chamber 17, and the first scraper 310 extends along the length direction of the brush rod 120. The first scraper 310 includes a plate body 311, and the plate body 311 is connected to the housing 110 through a connecting plate 340. The plate body 311 has a lower edge 3111, and the lower edge 3111 is an arc shape that gradually sinks from the middle to both ends, that is, the middle of the lower edge is higher, and the two ends are closer to the bottom surface. The plate body 311 is provided with a plurality of scraping claws 312 along the lower edge, and the plurality of scraping claws 312 are spaced apart along the length direction of the scraper plate. The scraping claws 312 can extend into the flexible brush layer 22. When the brush rod 120 rotates, the scraping claws 312 can scrape off or loosen the debris attached to the brush rod 120. The lower edge 3111 can gather the debris to the middle and align it with the debris outlet 141. The gathered debris can enter the negative pressure device more directly from the debris outlet 141.

[0051] The scraper claw 312 extends downward and crosses the lower edge 3111 , and forms a claw portion at its lower end. The debris attached to the scraper claw 312 is not blocked by the plate body 311 , and can be directly sucked out to easily leave the scraper claw 312 and enter the debris outlet 141 .

[0052] The plate body 311 basically extends along the outer surface of the brush rod 120. The plate body 311 has a surface 3112 close to the brush rod 120. The surface 3112 also basically extends along the outer surface of the brush rod 120. The strips protruding from the surface 3112 and extending circumferentially constitute scraping claws 312. The longer scraping claws 312 increase the circumferential action distance with the flexible brush layer 22, so that the debris on the brush rod 120 can be scraped off or loosened more effectively.

[0053] The housing 110 is provided with a second scraper 320, and the second plate body 320 is placed in the debris collection chamber 17. The second plate body 311 is arranged above the first plate body 311, and the second scraper 320 extends along the length direction of the brush rod 120, and is used to perform secondary scraping on the flexible brush layer 22 on the brush rod 120. Figure 2 The counterclockwise rotation shown causes the first scraper 310 to first scrape the flexible brush layer 22 , and then after rotating to the position of the second scraper 320 , scraping is then performed by the second scraper 320 .

[0054] The second scraper 320 is spaced apart from the first scraper 310, and a debris passage opening 330 is formed therebetween. The debris scraped off by the second scraper 320 enters the debris collection chamber 17 from the debris passage opening 330, and then enters the negative pressure device from the debris outlet 141. The connecting plate 340 connected to the first scraper 310 is spaced apart to form the debris passage opening 330.

[0055] The second scraper 320 is preferably integrally formed with the shell 110. The second scraper 320 extends obliquely forward and downward from the shell 110, and its lower edge constitutes a scraping edge. The scraping edge and the flexible brush layer 22 are in contact with the brush rod 120 in a smooth manner. The scraping edge is a straight line extending along the length direction of the brush rod 120, thereby more smoothly scraping off the fine garbage loosened by the first scraper 310.

[0056] In the specification and claims of the present application, the words "include / comprise" and the words "have / include" and their variations are used to specify the existence of stated features, values, steps or components, but do not exclude the existence or addition of one or more other features, values, steps, components or combinations thereof.

[0057] Some features of the present invention are described in different embodiments for clarity of description, however, these features may also be described in combination in a single embodiment. Conversely, some features of the present invention are described in only a single embodiment for brevity, however, these features may also be described in different embodiments alone or in any suitable combination.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cleaning head, comprising a shell and a brush bar, wherein the two ends of the shell have a first side plate and a second side plate respectively, the shell defines a cavity, the brush bar comprises an outer cylinder and a motor at least partially disposed in the outer cylinder, the motor comprises a stator and a rotor, the first end of the outer cylinder is rotatably connected to the first side plate, and the rotor is used to drive the outer cylinder to rotate, characterized in that: The second end of the outer cylinder is provided with an electrical connector, the electrical connector is relatively fixed to the stator, the electrical connector is electrically connected to the motor, the second side plate has a slot and another electrical connector, the brush rod can be placed into the cavity from the opening of the cavity, so that the electrical connector is inserted into the slot and the electrical connector is electrically connected to the other electrical connector, the second side plate is connected to a pressing plate, the pressing plate is used to press and fix the electrical connector in the slot; One end of the pressing plate is rotatably connected to the second side plate, and a movable buckle is provided on the second side plate, and the movable buckle is used to fasten the other end of the pressing plate so that the pressing plate presses the electrical connector into the slot, and to release the other end of the pressing plate so that the pressing plate releases the pressing state of the electrical connector; A first magnetic body is provided on the movable buckle and / or the second side plate, and a second magnetic body corresponding to the position of the first magnetic body is provided on the pressure plate, and the same poles of the first magnetic body and the second magnetic body are opposite to each other. After the movable buckle releases the pressure plate, the first magnetic body and the second magnetic body repel each other to make the pressure plate bounce up; The movable buckle includes a sliding part and a hook part, the sliding direction of the sliding part is parallel to the second side plate, and the movable buckle is pressed on the outer side surface of the second side plate and along the outer side surface, the pressure plate has a slide groove, and a tongue is formed on the side wall of the slide groove, the hook part is inserted into the slide groove and moves in the slide groove to achieve the engagement or disengagement of the hook part and the tongue; the first magnetic body is arranged on the hook part, and the second magnetic body is arranged on the bottom surface of the slide groove; the movable buckle is connected to a pre-tightening spring, and the pre-tightening spring provides a pre-tightening force for the movable buckle, so that the movable buckle remains in a fastened state to the other end of the pressure plate.

2. The cleaning head according to claim 1, characterized in that: The shell is located above the cavity and has a top plate, and the shell is located behind the cavity and has a rear side portion, and the top plate, the rear side portion, the first side plate, and the second side plate jointly define the opening of the cavity; the brush rod and the rear side portion jointly define a debris collection chamber; a first scraper is provided in the shell, and the first scraper is placed in the debris collection chamber, and the first scraper extends along the length direction of the brush rod; the first scraper includes a plate body, and the plate body is connected to the shell through a connecting plate; the plate body has a lower edge, and the lower edge is an arc shape that gradually sinks from the middle to both ends; a plurality of scraping claws are arranged along the lower edge of the plate body, and the plurality of scraping claws are arranged at intervals along the length direction of the scraper, and the scraping claws can extend into the flexible brush layer; The scraping claw extends downward and crosses the lower edge, and forms a claw portion at its lower end; the plate body extends along the outer surface of the brush rod, and the plate body has a surface close to the brush rod, which extends along the outer surface of the brush rod, and a strip protruding from the surface and extending circumferentially constitutes the scraping claw.

3. The cleaning head according to claim 1, characterized in that: The second end of the outer cylinder is connected to the electrical connector via a bearing.

4. The cleaning head according to claim 1, characterized in that: The first side plate is connected with an axial connector, and the axial connector is plugged into the first end of the brush rod to realize the rotational connection between the brush rod and the first side plate.

5. The cleaning head according to claim 1, characterized in that: The first end and the second end of the outer cylinder are both provided with air vents, an air flow channel located in the outer cylinder is formed between the air vents, the motor is arranged in the air flow channel, the rotor is connected with fan blades, and the fan blades rotate with the rotor to allow external air to pass through the air vents and flow in the air flow channel.

6. The cleaning head according to claim 5, characterized in that: The air vent is arranged on the electrical connector, the first side panel is provided with a first air vent at a position corresponding to the air vent at one end, and the second side panel is provided with a second air vent at a position corresponding to the electrical connector, so that air outside the shell can flow into or out of the air flow channel through the first air vent and the second air vent.

7. A vacuum cleaner, characterized in that: A cleaning head as described in any one of claims 1 to 6 is used.

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