Cleaning device

Abstract

The invention provides a cleaning device which comprises a floor brush component, the floor brush component comprises a shell assembly and a cleaning assembly, the cleaning assembly comprises a first connecting part, a second connecting part and a rolling brush part, the second connecting part is arranged on the shell assembly, the first connecting part comprises a connecting arm and a shaft component arranged on the connecting arm, and the rolling brush part is arranged on the connecting arm; the connecting arm is detachably connected with the shell assembly, one end of the rolling brush part is rotatably arranged on the shaft component and detachably connected with the shaft component, and the other end of the rolling brush part is rotatably arranged on the second connecting part and detachably connected with the second connecting part. By means of the scheme, the problems that in the prior art, after long-time use, the rolling brush part is usually damaged more easily, the connecting part and the rolling brush part are replaced together, and the maintenance cost is high can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning devices, and in particular to a cleaning device. Background Art

[0002] The cleaning device generally includes a housing assembly, a cleaning assembly and a body part, wherein the cleaning assembly is arranged on the housing assembly and is used to abut against the area to be cleaned. Generally, the cleaning assembly includes a roller brush portion and two connecting portions, wherein the two connecting portions are respectively arranged corresponding to the two ends of the roller brush portion, the connecting portions are rotatably connected to the ends of the roller brush portion, and the connecting portions are arranged on the housing assembly.

[0003] During long-term use, the cleaning component may need to be replaced due to excessive wear. In existing solutions, the connection part is usually set to be detachably connected to the shell component. When the cleaning component needs to be replaced, the connection between the connection part and the shell component can be touched. However, after long-term use, the roller brush part is usually more susceptible to damage. The maintenance cost is high if the connection part is connected to the roller brush part and replaced together. Summary of the invention

[0004] The present invention provides a cleaning device to solve the problem in the prior art that after long-term use, the roller brush portion is usually more easily damaged, and the connecting portion connected to the roller brush portion must be replaced together, which results in high maintenance costs.

[0005] The present invention provides a cleaning device, which includes: a floor brush component, the floor brush component includes a shell assembly and a cleaning component, the cleaning component includes a first connecting part, a second connecting part and a roller brush part, the second connecting part is arranged on the shell assembly, the first connecting part includes a connecting arm and a shaft component arranged on the connecting arm, the connecting arm is detachably connected to the shell assembly, one end of the roller brush part is rotatably arranged on the shaft component and is detachably connected to the shaft component, and the other end of the roller brush part is rotatably arranged on the second connecting part and is detachably connected to the second connecting part.

[0006] Furthermore, a supporting hole is provided in the roller brush portion, and the shaft component includes: a connecting shaft and a connecting sleeve, at least a portion of the connecting sleeve is inserted into the end portion of the roller brush portion and is detachably connected to the roller brush portion, the connecting shaft passes through the connecting sleeve along the axial direction of the roller brush portion, one end of the connecting shaft is inserted into the supporting hole, and the other end of the connecting shaft is fixedly connected to the connecting arm.

[0007] Furthermore, the connecting shaft is an injection-molded part; and / or the connecting sleeve is an injection-molded part; and / or the connecting arm is made of stainless steel; and / or the connecting shaft and the connecting arm are connected by injection molding.

[0008] Furthermore, an installation groove is formed between the connecting sleeve and the connecting shaft, and the first connecting part also includes: a first bearing, which is arranged in the installation groove, the first bearing sleeve is arranged on the connecting shaft, the inner ring of the first bearing is interference fit with the connecting shaft, and the outer ring of the first bearing is interference fit with the connecting sleeve.

[0009] Furthermore, the connecting sleeve has a through hole, which includes a first hole section and a second hole section connected in sequence along the axial direction of the connecting sleeve, and the diameter of the first hole section is smaller than the diameter of the second hole section; the connecting shaft includes a first shaft section and a second shaft section connected in sequence along the axial direction, and the diameter of the first shaft section is smaller than the diameter of the second shaft section, the second shaft section and the end where the first shaft section is connected to the second shaft section are located in the second hole section, and the end of the first shaft section away from the second shaft section is inserted into the support hole, and an installation groove is formed between the parts of the first shaft section and the second shaft section located in the second hole section and the connecting sleeve.

[0010] Furthermore, the roller brush portion comprises: a roller brush body; a support portion, which is arranged in the roller brush body, and a support hole is arranged at one end of the support portion facing the connecting sleeve, and the connecting sleeve is clamped with the support portion.

[0011] Furthermore, the cleaning device also includes a magnetic attraction portion, which is arranged on the shell assembly, and the first connecting portion is magnetically matched with the magnetic attraction portion.

[0012] Furthermore, the first connecting part and the second connecting part are respectively arranged on the shell assembly in a liftable manner, the roller brush part is used to abut against the area to be cleaned, and the cleaning device also includes: a body part, which is rotatably arranged on the shell assembly; a first driving part, which is arranged on the shell assembly, and the first driving part is connected to the cleaning assembly to make the cleaning assembly rise and fall; a detection member, the detection part of the detection member is arranged toward at least a part of the body member to detect the inclination angle of the body member, and the detection member is electrically connected to the first driving part; a control member, which is respectively electrically connected to the first driving part and the detection member, and when the detection member detects that the inclination angle of the body member relative to the floor brush member is less than the first preset angle, the control member controls the first driving part to drive the cleaning assembly to move in a direction close to the area to be cleaned to increase the friction between the cleaning assembly and the area to be cleaned.

[0013] Furthermore, the cleaning device further comprises: an elastic part, both ends of which are respectively used to abut against at least a part of the shell component and the bottom of the cleaning component to apply an upward force to the cleaning component.

[0014] Furthermore, the body component includes a rotating shaft and is rotatably arranged on the shell assembly through the rotating shaft, and the rotating shaft has two end faces arranged opposite to each other along the axial direction; the detection member includes: a first sensing part, which is arranged on one of the end faces of the rotating shaft, and the first sensing part is eccentrically arranged with the rotating shaft; a second sensing part, which is arranged on the shell assembly, and the second sensing part is located on the side where the end face of the rotating shaft where the first sensing part is arranged is located, the second sensing part cooperates with the first sensing part, and the second sensing part forms the detection part of the detection member, and when the body component is in the initial position, when the inclination angle of the body component relative to the floor brush component is a first preset angle, the first sensing part and the second sensing part are arranged opposite to each other; when the inclination angle between the body component and the floor brush component is less than the first preset angle, the first sensing part and the second sensing part are staggered.

[0015] Furthermore, when the inclination angle of the body component relative to the floor brush component is less than a first preset angle, an induction signal is triggered between the first sensing part and the second sensing part, and the control component controls the first driving part to drive the cleaning assembly to move toward a direction close to the area to be cleaned.

[0016] Furthermore, when the inclination angle of the body component relative to the floor brush component is equal to a first preset angle, the first sensing portion has a maximum projection area on the second sensing portion along the axial direction of the rotating shaft, and the induction signal between the first sensing portion and the second sensing portion is the strongest; when the inclination angle of the body component relative to the floor brush component gradually decreases, the projection area of ​​the first sensing portion on the second sensing portion gradually decreases along the axial direction of the rotating shaft, the induction signal between the first sensing portion and the second sensing portion gradually weakens, and the control component controls the first driving portion to gradually increase the force applied to the cleaning component in the direction of the area to be cleaned.

[0017] Furthermore, the detection member also includes: a third sensing part, which is arranged on the end face of the rotating shaft where the first sensing part is arranged, the third sensing part and the first sensing part are spaced apart along the circumference of the rotating shaft, the second sensing part and the third sensing part cooperate with each other inductively, the body component has an extreme tilt position, when the body component is in the extreme tilt position, the tilt angle of the body component relative to the floor brush component is a third preset angle, and the third sensing part and the first sensing part are arranged opposite to each other.

[0018] Furthermore, when the inclination angle of the body component relative to the floor brush component is less than a second preset angle, an induction signal is triggered between the third sensing part and the second sensing part, and the control part controls the first driving part to drive the cleaning component to move toward a direction close to the area to be cleaned, wherein the second preset angle is smaller than the first preset angle, and the third preset angle is smaller than the second preset angle.

[0019] Furthermore, when the inclination angle of the body component relative to the floor brush component is equal to a second preset angle, the third sensing portion has the smallest projection area on the second sensing portion along the axial direction of the rotating shaft, and the induction signal between the third sensing portion and the second sensing portion is weakest; when the inclination angle of the body component relative to the floor brush component gradually decreases, the projection area of ​​the third sensing portion on the second sensing portion gradually increases along the axial direction of the rotating shaft, the induction signal between the third sensing portion and the second sensing portion gradually increases, and the control component controls the first driving portion to gradually increase the force applied to the cleaning component in the direction of the area to be cleaned.

[0020] Furthermore, the first sensing part is a magnetic signal generating part, the third sensing part is a magnetic signal generating part, and the second sensing part is a magnetic signal detecting part.

[0021] By applying the technical solution of the present invention, after long-term use, when the roller brush part of the cleaning assembly is severely worn and needs to be replaced, the connection between the connecting arm and the housing assembly is released, the connection between the shaft component and the roller brush part is released, and then the connection between the roller brush part and the second connecting part is released, and the roller brush part can be replaced; when replacing a new roller brush part, one end of the roller brush part is installed on the second connecting part, the shaft component is connected to the end of the roller brush part away from the second connecting part, and the connecting arm is connected to the housing assembly. With such an arrangement, there is no need to frequently replace the first connecting part and the second connecting part, thereby reducing the maintenance cost of the cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 It shows a schematic diagram of the explosion structure of the cleaning device provided according to the first embodiment of the present invention;

[0024] Figure 2 Shows Figure 1 Schematic diagram of the local structure at A in the middle;

[0025] Figure 3 A schematic diagram of a partial structure explosion of a cleaning component provided according to Embodiment 1 of the present invention is shown;

[0026] Figure 4 An exploded schematic diagram of a rolling brush portion and a first connecting portion provided according to Embodiment 1 of the present invention is shown;

[0027] Figure 5 It shows a structural cross-sectional view of a rolling brush portion and a first connecting portion provided according to the first embodiment of the present invention;

[0028] Figure 6It shows a schematic structural diagram of a cleaning device provided according to Embodiment 1 of the present invention;

[0029] Figure 7 It shows a first partial structural schematic diagram of a cleaning device provided according to Embodiment 1 of the present invention;

[0030] Figure 8 A second partial structural schematic diagram of the cleaning device provided according to the first embodiment of the present invention is shown;

[0031] Fig. 9 A third partial structural schematic diagram of the cleaning device provided according to the first embodiment of the present invention is shown;

[0032] Fig.10 Shows Fig. 9 Schematic diagram of the local structure at B in the middle;

[0033] Fig.11 Shows Fig. 9 Schematic diagram of the local structure at C in the middle;

[0034] Fig.12 A partial structural schematic diagram of a cleaning device provided according to Embodiment 2 of the present invention is shown.

[0035] The above drawings include the following reference numerals:

[0036] 10. Shell assembly; 101. Travel wheel;

[0037] 11. first side plate; 111. guide protrusion; 112. limiting piece;

[0038] 12. Second side panel;

[0039] 20. Cleaning components;

[0040] 21. a first connecting portion;

[0041] 211, connecting arm;

[0042] 212, shaft component; 2121, connecting shaft; 2122, connecting sleeve; 213, first bearing;

[0043] 22. second connecting portion; 221. second driving member; 222. second bearing;

[0044] 23. Roller brush portion; 2301. Support hole;

[0045] 231, roller brush body; 2311, roller; 2312, cleaning cloth;

[0046] 232, support part; 233, first adapter; 234, second adapter;

[0047] 30. Body parts; 31. Rotating shaft;

[0048] 40. First driving part; 41. Driving member; 42. Pressing plate;

[0049] 50. detection member; 51. first sensing part; 52. second sensing part; 53. third sensing part;

[0050] 60. Elastic part;

[0051] 70. Magnetic attraction part;

[0052] 81. First engaging piece; 811. Engaging hole; 82. Second engaging piece; 821. Engaging protrusion. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0054] like Figures 1 to 5 As shown, a first embodiment of the present invention provides a cleaning device, which includes a floor brush component, the floor brush component includes a shell assembly 10 and a cleaning component 20, the cleaning component 20 includes a first connecting portion 21, a second connecting portion 22 and a roller brush portion 23, the second connecting portion 22 is arranged on the shell assembly 10, the first connecting portion 21 includes a connecting arm 211 and a shaft component 212 arranged on the connecting arm 211, the connecting arm 211 is detachably connected to the shell assembly 10, one end of the roller brush portion 23 is rotatably arranged on the shaft component 212 and is detachably connected to the shaft component 212, and the other end of the roller brush portion 23 is rotatably arranged on the second connecting portion 22 and is detachably connected to the second connecting portion 22.

[0055] By applying the technical solution of the present invention, after long-term use, when the roller brush part 23 of the cleaning assembly 20 is severely worn and needs to be replaced, the connection between the connecting arm 211 and the housing assembly 10 is released, the connection between the shaft component 212 and the roller brush part 23 is released, and then the connection between the roller brush part 23 and the second connecting part 22 is released, and the roller brush part 23 is replaced; when replacing a new roller brush part 23, one end of the roller brush part 23 is installed on the second connecting part 22, the shaft component 212 is connected to the end of the roller brush part 23 away from the second connecting part 22, and the connecting arm 211 is connected to the housing assembly 10. With such a configuration, there is no need to frequently replace the first connecting part 21 and the second connecting part 22, thereby reducing the maintenance cost of the cleaning device. The above configuration enables the first connecting part 21 to realize a modular design, which facilitates the disassembly and assembly of the first connecting part 21, the housing assembly 10, and the roller brush part 23.

[0056] Combination Fig.10 and Fig.11 As shown, further, the housing assembly 10 has a first side plate 11 and a second side plate 12 which are arranged opposite to each other along the axis direction of the roller brush portion 23, the connecting arm 211 of the first connecting portion 21 is detachably arranged on the outer side of the first side plate 11, and the second connecting portion 22 is arranged on the outer side of the second side plate 12. Such arrangement facilitates the disassembly and assembly of the connecting arm 211 and the housing assembly 10.

[0057] like Figures 3 to 5 As shown, specifically, the roller brush portion 23 has a support hole 2301, the shaft component 212 includes a connecting shaft 2121 and a connecting sleeve 2122, at least part of the connecting sleeve 2122 is inserted into the end of the roller brush portion 23 and is detachably connected to the roller brush portion 23, the connecting shaft 2121 passes through the connecting sleeve 2122 along the axial direction of the roller brush portion 23, one end of the connecting shaft 2121 is inserted into the support hole 2301, and the other end of the connecting shaft 2121 is fixedly connected to the connecting arm 211. The matching structure of the connecting shaft 2121 and the connecting sleeve 2122 provides a stable rotation axis for the roller brush portion 23, and improves the stability of the roller brush portion 23 during rotation. The connecting shaft 2121 passes through the connecting sleeve 2122 and is inserted into the supporting hole 2301, which improves the coaxiality between the roller brush portion 23 and the connecting shaft 2121, and further improves the stability of the roller brush portion 23 during rotation. The connecting sleeve 2122 is detachably connected to the roller brush portion 23 , which can avoid interference when the roller brush portion 23 rotates around the connecting shaft 2121 , thereby improving the stability and smoothness of the rotation of the roller brush portion 23 .

[0058] In the embodiment of this solution, the connecting shaft 2121 and the connecting sleeve 2122 are both injection molded parts. Such an arrangement can reduce the processing cost of the device.

[0059] Furthermore, the connecting shaft 2121 and the connecting arm 211 are connected by injection molding, so as to improve the stability of the connection between the connecting shaft 2121 and the connecting arm 211.

[0060] Furthermore, the connecting arm 211 is made of stainless steel. In the embodiment of the present solution, the thickness of the connecting arm 211 is 1.5 mm. Such a configuration can improve the structural strength of the connecting arm 211, and under the premise of ensuring the structural strength of the connecting arm 211, the thickness of the connecting arm 211 can be reduced as much as possible, thereby increasing the edge cleaning effect of the cleaning assembly 20.

[0061] In the embodiment of this solution, the connecting shaft 2121 and the connecting arm 211 are connected by injection molding. Such a configuration can improve the stability of the connection between the connecting shaft 2121 and the connecting arm 211.

[0062] Furthermore, a mounting groove is formed between the connecting sleeve 2122 and the connecting shaft 2121, and the first connecting portion 21 further includes a first bearing 213, which is disposed in the mounting groove and sleeved on the connecting shaft 2121. The inner ring of the first bearing 213 is interference fit with the connecting shaft 2121, and the outer ring of the first bearing 213 is interference fit with the connecting sleeve 2122. The provision of the first bearing 213 can improve the smoothness of the rotation of the connecting shaft 2121 and the connecting sleeve 2122, and improve the smoothness of the rotation of the roller brush portion 23 with the connecting sleeve 2122. In addition, the first bearing 213 is located in the mounting groove, which can reduce the possibility of damage to the first bearing 213 due to being exposed to the outside.

[0063] Furthermore, the connecting sleeve 2122 has a through hole, which includes a first hole section and a second hole section connected in sequence along the axial direction of the connecting sleeve 2122, and the diameter of the first hole section is smaller than the diameter of the second hole section; the connecting shaft 2121 includes a first shaft section and a second shaft section connected in sequence along the axial direction, and the diameter of the first shaft section is smaller than the diameter of the second shaft section, the second shaft section and the end connected to the first shaft section and the second shaft section are located in the second hole section, and the end of the first shaft section away from the second shaft section is inserted into the support hole 2301, and a mounting groove is formed between the parts of the first shaft section and the second shaft section located in the second hole section and the connecting sleeve 2122. With such a configuration, the mounting groove can be formed during the assembly process of the connecting sleeve 2122 and the connecting shaft 2121, and there is no need to process the mounting groove separately.

[0064] Furthermore, the roller brush portion 23 includes a roller brush body 231 and a support portion 232; the support portion 232 is arranged in the roller brush body 231, and a support hole 2301 is arranged at one end of the support portion 232 facing the connecting sleeve 2122, and the connecting sleeve 2122 is engaged with the support portion 232. In this embodiment, the support portion 232 and the roller brush body 231 are separately arranged and detachably connected. The support portion 232 and the roller brush body 231 are both injection molded parts. Such a configuration can further improve the convenience of processing the support hole 2301 and reduce the processing cost of the roller brush portion 23.

[0065] Specifically, the roller brush body 231 includes a roller 2311 and a cleaning cloth 2312 , and the cleaning cloth 2312 is wrapped around the outer side of the roller 2311 .

[0066] In the embodiment of the present scheme, a snap-fit ​​structure is arranged between the support portion 232 and the connecting sleeve 2122, and the snap-fit ​​structure includes a first snap-fit ​​plate 81 and a second snap-fit ​​plate 82. The first snap-fit ​​plate 81 is arranged on the support portion, and the first snap-fit ​​plate 81 extends along the axial direction of the roller brush body, and a snap-fit ​​hole 811 is arranged on the first snap-fit ​​plate 81; the second snap-fit ​​plate 82 is arranged on the connecting sleeve, and the second snap-fit ​​plate 82 extends along the axial direction of the roller brush body, and a snap-fit ​​protrusion 821 is arranged on the second snap-fit ​​plate 82, and the snap-fit ​​hole 811 and the snap-fit ​​protrusion 821 are snap-fitted.

[0067] Furthermore, a plurality of the clamping structures are provided, and the plurality of the clamping structures are distributed at intervals along the circumference of the support portion 232 . Such a configuration can improve the stability of the connection between the support portion 232 and the connecting sleeve 2122 .

[0068] Specifically, the snap-fitting protrusion 821 is a hemispherical structure, which facilitates the snap-fitting protrusion 821 to be inserted into or removed from the snap-fitting hole 811 , thereby improving the convenience and smoothness of assembly and disassembly of the first snap-fitting piece 81 and the second snap-fitting piece 82 .

[0069] like Figures 1 to 5 As shown, further, the cleaning device further includes a second driving member 221, and the roller brush portion 23 further includes a first adapter 233 and a second adapter 234. The first adapter 233 and the second adapter 234 are both located in the roller brush body 231, and the first adapter 233, the second adapter 234 and the support portion 232 are sequentially distributed along the axial direction of the roller brush portion 23. The second adapter 234 is detachably connected to the first adapter 233 and the support portion 232, respectively, and the first adapter 233 is detachably connected to the roller brush body 231.

[0070] The first adapter 233 is provided with a rotation-stopping hole at one end away from the support portion 232, and the second side plate 12 of the housing assembly 10 is also provided with a mounting hole. The seat of the second drive member 221 is provided on the second connection portion 22, and the end of the second drive member 221 away from the seat passes through the second side plate 12 through the mounting hole and extends into the roller brush portion 23. The output shaft of the second drive member 221 is provided in the rotation-stopping hole and cooperates with the rotation-stopping hole to stop rotation. In this arrangement, when performing cleaning operations, the second drive member 221 drives the first adapter 233 to drive the roller brush portion 23 to rotate.

[0071] In the embodiment of this solution, a second bearing 222 is further provided on the side of the second connecting portion 22 facing the second side plate 12, the inner ring of the second bearing 222 is fixedly provided on the seat body of the second driving member 221, and the outer ring of the second bearing 222 is inserted into the corresponding end of the roller brush portion 23 and is interference fit with the roller brush portion 23. Such a configuration facilitates the disassembly and assembly of the roller brush portion 23 and the second connecting portion 22.

[0072] Furthermore, the cleaning device further includes a magnetic attraction portion 70, which is disposed on the housing assembly 10, and the first connecting portion 21 is magnetically matched with the magnetic attraction portion 70. The provision of the magnetic attraction portion 70 can improve the convenience of disassembly and assembly of the first connecting portion 21 and the housing assembly 10.

[0073] Combination Fig.10 As shown, specifically, the magnetic attraction portion 70 is disposed on the inner side of the first side plate 11. In this way, the housing assembly 10 can protect the magnetic attraction portion 70 and improve the stability of the magnetic attraction between the magnetic attraction portion 70 and the first connecting portion 21.

[0074] like Figures 6 to 11 As shown, further, the first connecting part 21 and the second connecting part 22 are respectively arranged on the housing component 10 in a liftable manner, the roller brush part 23 is used to abut against the area to be cleaned, and the cleaning device also includes a body component 30, a first driving part 40, a detection member 50 and a control member. The body component 30 is rotatably arranged on the housing component 10; the first driving part 40 is arranged on the housing component 10, and the first driving part 40 is connected to the cleaning component 20 for driving the cleaning component 20 to lift and lower; the detection part of the detection member 50 is arranged toward at least part of the body component 30 to detect the inclination angle of the body component 30, and the detection member 50 is electrically connected to the first driving part 40; the control member is electrically connected to the first driving part 40 and the detection member 50 respectively, and the control member controls the first driving part 40 to drive the cleaning component 20 to lift and lower according to the inclination angle of the body component 30 relative to the floor brush component detected by the detection member 50.

[0075] Specifically, the housing assembly 10 has a head end and a tail end that are arranged opposite to each other, a travel wheel 101 is installed at the tail end of the housing assembly 10, and the cleaning assembly 20 is arranged at the head end of the housing assembly 10 in a manner that it can be raised and lowered, and the bottom of the cleaning assembly 20 protrudes downward from the bottom of the housing assembly 10. The bottom end of the body component 30 is rotatably arranged at the tail end of the housing assembly 10, and when the user operates the cleaning device, the user holds the top end of the body component 30 and tilts it in a direction away from the head end of the housing assembly 10.

[0076] Among them, the first driving part 40 includes a first driving member 41 and a pressure plate 42. The first driving member 41 is arranged in the shell assembly 10, and the pressure plate 42 can be raised and lowered in the shell assembly 10. The first side plate 11 and the second side plate 12 of the shell assembly 10 are respectively provided with avoidance holes, and the two ends of the pressure plate 42 are respectively penetrated into the two avoidance holes. The two ends of the pressure plate 42 are respectively abutted against the top end of the first connecting part 21 and the top end of the second connecting part 22 to realize synchronous driving of the first connecting part 21 and the second connecting part 22 to descend.

[0077] In the embodiment of the present solution, a guide rod is disposed in the housing assembly 10 , and the guide rod passes through the pressure plate 42 and cooperates with the pressure plate 42 for guidance.

[0078] Furthermore, the magnetic attraction part 70 is escalably arranged on the inner side of the first side plate 11, a sliding hole is arranged on the magnetic attraction part 70, and a guide protrusion 111 is arranged on the inner side wall of the first side plate 11. The magnetic attraction part 70 is arranged on the guide protrusion 111 through the sliding hole and is guided and matched with the guide protrusion 111. A limiting piece 112 is also arranged in the housing assembly 10, and the limiting piece 112 is located on the side of the magnetic attraction part 70 away from the first side plate 11 and is limited and matched with the magnetic attraction part 70 to prevent the magnetic attraction part 70 from falling off from the guide protrusion 111.

[0079] Specifically, when the detection member 50 detects that the inclination angle of the body member 30 relative to the floor brush member is less than the first preset angle, the control member controls the first driving unit 40 to drive the cleaning assembly 20 to move toward the direction close to the area to be cleaned to increase the friction between the cleaning assembly 20 and the area to be cleaned.

[0080] With such a configuration, when the user uses the cleaning device for cleaning and the inclination angle of the body part 30 relative to the floor brush part is less than the first preset angle, the first driving part 40 drives the cleaning assembly 20 to move in the direction close to the area to be cleaned to increase the friction between the cleaning assembly 20 and the area to be cleaned, thereby improving the cleaning effect of the cleaning assembly 20. Specifically, when the body part 30 is in the initial state, the inclination angle of the body part 30 relative to the floor brush part is the first preset angle. At this time, the body part 30 exerts the maximum pressure on the floor brush part, and the cleaning assembly 20 is subjected to the maximum pressure; when the user uses the cleaning device, in order to improve the comfort of use, the user holds the end of the body part 30 away from the floor brush part to tilt the body part 30. At this time, the user shares part of the gravity of the body part 30, the pressure of the body part 30 on the floor brush part is reduced, and the pressure of the cleaning assembly 20 on the area to be cleaned is reduced. When the detection part of the detection member 50 detects that the tilt angle of the body member 30 relative to the floor brush member is less than the first preset angle, the detection member 50 transmits the signal to the first driving unit 40, and the first driving unit 40 drives the cleaning component 20 to move in the direction close to the area to be cleaned, so as to increase the friction between the cleaning component 20 and the area to be cleaned, and improve the tilting effect of the cleaning component 20. The arrangement of this solution can increase the friction between the cleaning component 20 and the area to be cleaned, and improve the cleaning effect of the cleaning component, when the tilt angle of the body member 30 relative to the floor brush member is less than the first preset angle, that is, when the pressure of the body member 30 on the floor brush member is reduced, by compensating for the pressure between the cleaning component 20 and the area to be cleaned.

[0081] Specifically, the first preset angle may be determined according to the corresponding angle of the body component 30 at the initial position. The first preset angle may range from 80° to 90° (including 80° and 90°).

[0082] Preferably, in an embodiment of the present scheme, when the body component is in the initial position, the body component 30 and the floor brush component are perpendicular to each other, and the body component 30 has a first preset angle relative to the floor brush component, the first preset angle is 90 degrees, and the body component 30 exerts a maximum force on the floor brush component.

[0083] Furthermore, the cleaning device further includes an elastic portion 60, the two ends of which are respectively used to abut against at least a portion of the housing assembly 10 and the bottom of the cleaning assembly 20, so as to apply an upward force to the cleaning assembly 20. The setting of the elastic portion 60 can absorb part of the impact force during the lifting and lowering process of the cleaning assembly 20, and can improve the stability of the lifting and lowering process of the cleaning assembly 20. In addition, when the cleaning device is in an idle state, that is, when the body component 30 is in the initial position, an upward force is applied to the cleaning assembly 20, reducing the pressure of the cleaning assembly 20 on the ground and reducing the possibility of damage to the cleaning assembly.

[0084] Further, the body component 30 includes a rotating shaft 31 and is rotatably arranged on the shell assembly 10 through the rotating shaft 31, and the rotating shaft 31 has two end faces arranged opposite to each other along the axial direction; the detection member 50 includes a first sensing portion 51 and a second sensing portion 52, the first sensing portion 51 is arranged on one of the end faces of the rotating shaft 31, and the first sensing portion 51 is eccentrically arranged with the rotating shaft 31; the second sensing portion 52 is arranged on the shell assembly 10, and the second sensing portion 52 is located on the side where the end face of the rotating shaft 31 with the first sensing portion 51 is located, the second sensing portion 52 and the first sensing portion 51 are inductively matched, and the second sensing portion 52 forms the detection portion of the detection member 50, when the body component 30 is in the initial position, when the inclination angle of the body component 30 relative to the floor brush component is the first preset angle, the first sensing portion 51 and the second sensing portion 52 are arranged opposite to each other; when the inclination angle between the body component 30 and the floor brush component is less than the first preset angle, the first sensing portion 51 and the second sensing portion 52 are staggered.

[0085] Specifically, when the tilt angle of the body component 30 relative to the floor brush component is less than the first preset angle, the first sensing part 51 and the second sensing part 52 trigger the sensing signal, and the first driving part 40 drives the cleaning assembly 20 to move in the direction close to the area to be cleaned. The setting of the rotating shaft 31 realizes the rotatable connection between the body component 30 and the shell component 10, and the first sensing part 51 is set on the rotating shaft 31, and can rotate synchronously with the rotating shaft 31. When the tilt angle of the body component 30 relative to the floor brush component changes, the relative position between the first sensing part 51 and the second sensing part 52 will also change, thereby triggering the corresponding sensing signal.

[0086] It can be understood that the rotating shaft 31 extends in the horizontal direction, and the rotating shaft 31 is located at the bottom of the body part 30, the first sensing part 51 is arranged on the end face of the first end of the rotating shaft 31 in the axial direction, and the second sensing part 52 is located on the side where the first end of the rotating shaft 31 in the axial direction is located. Such an arrangement can make the first sensing part 51 as close to the second sensing part 52 as possible, can shorten the transmission path of the sensing signal as much as possible, reduce the possibility of signal interference, ensure that the detection member 50 can quickly and accurately detect the change of the tilt angle of the body part 30 relative to the floor brush part, and improve the response speed of the first driving part 40.

[0087] Specifically, when the inclination angle of the body part 30 relative to the floor brush part is equal to the first preset angle, along the axis direction of the rotating shaft 31, the first sensing part 51 has the largest projection area on the second sensing part 52, and the induction signal between the first sensing part 51 and the second sensing part 52 is the strongest. At this time, the detection member 50 recognizes that the body part 30 is in the initial state; when the inclination angle of the body part 30 relative to the floor brush part gradually decreases, along the axis direction of the rotating shaft 31, the projection area of ​​the first sensing part 51 on the second sensing part 52 gradually decreases, and the induction signal between the first sensing part 51 and the second sensing part 52 gradually weakens. At this time, the detection member 50 recognizes that the body part 30 gradually tilts, and the force applied by the first driving part 40 to the cleaning component 20 in the direction of the area to be cleaned gradually increases. In this way, it can be ensured that the smaller the pressure of the body part 30 on the floor brush part, the stronger the pressure applied by the first driving part 40 to the cleaning component 20, which further improves the cleaning effect of the device.

[0088] It can be understood that when the inclination angle of the body component 30 relative to the floor brush component is equal to the first preset angle, the cleaning assembly 20 is in the upper limit position.

[0089] In the embodiment of this scheme, when the induction signal between the first sensing part 51 and the second sensing part 52 is weakest, the inclination angle of the body part 30 relative to the floor brush part is a third preset angle. At this time, the body part 30 is in an extreme inclination position and the cleaning component 20 is in a lower extreme position.

[0090] Among them, the third preset angle can be set to 0 degree.

[0091] Similarly, on the contrary, when the inclination angle of the body component 30 relative to the floor brush component gradually increases from the third preset angle to the first preset angle, the induction signal between the first sensing part 51 and the second sensing part 52 gradually increases, and the force applied by the first driving part 40 to the cleaning component 20 in the direction of the area to be cleaned gradually decreases until the body component 30 is in a vertical state and the cleaning component 20 is in the upper limit position, and the first driving part 40 no longer applies force to the cleaning component 20.

[0092] Further, the first sensing part 51 is a magnetic signal generating component, and the second sensing part 52 is a magnetic signal detecting component 50 .

[0093] The first sensing part 51 may be configured as a magnet, and the second sensing part 52 may be configured as a Hall sensor.

[0094] like Fig.12As shown, the second embodiment of the present invention provides a cleaning device, which is different from the first embodiment in that the detection member 50 of this embodiment includes a first sensing portion 51, a second sensing portion 52 and a third sensing portion 53. The third sensing portion 53 and the first sensing portion 51 are spaced apart along the circumference of the rotating shaft 31, the third sensing portion 53 is arranged at the end of the first end in the axial direction of the rotating shaft 31, and the second sensing portion 52 and the third sensing portion 53 are inductively matched.

[0095] The third sensing part 53 is a magnetic signal generating component, which can be specifically configured as a magnet.

[0096] When the inclination angle of the body component 30 relative to the floor brush component is equal to the first preset angle, along the axial direction of the rotating shaft 31, the first sensing portion 51 has the largest projection area on the second sensing portion 52, and the induction signal between the first sensing portion 51 and the second sensing portion 52 is the strongest. At this time, the detection member 50 recognizes that the body component 30 is in the initial state; when the inclination angle of the body component 30 relative to the floor brush component gradually decreases, along the axial direction of the rotating shaft 31, the projection area of ​​the first sensing portion 51 on the second sensing portion 52 gradually decreases, and the induction signal between the first sensing portion 51 and the second sensing portion 52 gradually weakens. At this time, the detection member 50 recognizes that the body component 30 is gradually tilted, and the force applied by the first driving portion 40 to the cleaning component 20 in the direction of the to-be-cleaned area gradually increases until the inclination angle of the body component 30 relative to the floor brush component is equal to the second preset angle. If the inclination angle of the body component 30 relative to the floor brush component continues to be at the second preset angle, the force applied by the first driving portion 40 to the cleaning component 20 remains unchanged, that is, the position of the cleaning component 20 relative to the housing component 10 remains unchanged.

[0097] When the inclination angle of the body component 30 relative to the floor brush component is less than the second preset angle, the induction signal between the first sensing part 51 and the second sensing part 52 disappears, and the induction signal is triggered between the third sensing part 53 and the second sensing part 52, and the first driving part 40 drives the cleaning component 20 to continue moving toward the direction close to the area to be cleaned, wherein the second preset angle is smaller than the first preset angle.

[0098] In an embodiment of the present scheme, when the induction signal between the first sensing part 51 and the second sensing part 52 disappears, the first driving part 40 drives the cleaning component 20 to move downward to an intermediate position between the upper limit position and the lower limit position, and the intermediate position is the same distance from the upper limit position and the lower limit position.

[0099] Specifically, when the inclination angle of the body component 30 relative to the floor brush component is equal to the second preset angle, the third sensing portion 53 has the smallest projection area on the second sensing portion 52 along the axial direction of the rotating shaft 31, and the induction signal between the third sensing portion 53 and the second sensing portion 52 is weakest; when the inclination angle of the body component 30 relative to the floor brush component gradually decreases, the projection area of ​​the third sensing portion 53 on the second sensing portion 52 gradually increases along the axial direction of the rotating shaft 31, the induction signal between the third sensing portion 53 and the second sensing portion 52 gradually increases, and the force applied by the first driving portion 40 to the cleaning component 20 in the direction of the area to be cleaned gradually increases.

[0100] In an embodiment of the present scheme, when the inclination angle of the body component 30 relative to the floor brush component is equal to the third preset angle, along the axial direction of the rotating shaft 31, the third sensing portion 53 has the largest projection area on the second sensing portion 52, the sensing signal between the third sensing portion 53 and the second sensing portion 52 is the strongest, and the cleaning component 20 is in the lower limit position.

[0101] Among them, the first preset angle can be set to 90 degrees, the third preset angle can be set to 0 degrees, and the second preset angle can be set to 45 degrees.

[0102] This solution can further improve the signal sensing accuracy of the second sensing part 52 and the first sensing part 51 and the signal sensing accuracy of the second sensing part 52 and the third sensing part 53 by the first sensing part 51 and the third sensing part 53 in turn sensing and cooperating with the second sensing part 52, thereby further improving the cleaning effect of the device.

[0103] Similarly, on the contrary, when the inclination angle of the body component 30 relative to the floor brush component gradually increases from the third preset angle to the first preset angle, the induction signal between the third sensing part 53 and the second sensing part 52 gradually decreases, and the force applied by the first driving part 40 to the cleaning component 20 in the direction of the area to be cleaned gradually decreases; when the inclination angle of the body component 30 relative to the floor brush component increases to the second preset angle, the induction signal between the third sensing part 53 and the second sensing part 52 is minimum; when the inclination angle of the body component 30 relative to the floor brush component exceeds the second preset angle, the second sensing part 52 senses the signal of the first sensing part 51, the induction signal between the second sensing part 52 and the third sensing part 53 disappears, and the force applied by the first driving part 40 to the cleaning component in the direction of the area to be cleaned continues to gradually decrease until the body component 30 is in a vertical state, the cleaning component 20 is in the upper limit position, and the first driving part 40 no longer applies a force to the cleaning component 20.

[0104] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0105] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0106] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0107] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0108] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0109] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cleaning device, characterized in that: include: A floor brush component, the floor brush component comprising a housing component (10) and a cleaning component (20), the cleaning component (20) comprising a first connecting portion (21), a second connecting portion (22) and a rolling brush portion (23), the second connecting portion (22) being arranged on the housing component (10), the first connecting portion (21) comprising a connecting arm (211) and a shaft component (212) arranged on the connecting arm (211), the connecting arm (211) being detachably connected to the housing component (10), one end of the rolling brush portion (23) being rotatably arranged on the shaft component (212) and detachably connected to the shaft component (212), and the other end of the rolling brush portion (23) being rotatably arranged on the second connecting portion (22) and detachably connected to the second connecting portion (22).

2. The cleaning device according to claim 1, characterized in that The roller brush portion (23) has a support hole (2301) therein, and the shaft component (212) comprises: A connecting shaft (2121) and a connecting sleeve (2122), wherein at least a portion of the connecting sleeve (2122) is inserted into the end of the roller brush portion (23) and is detachably connected to the roller brush portion (23), the connecting shaft (2121) passes through the connecting sleeve (2122) along the axial direction of the roller brush portion (23), one end of the connecting shaft (2121) is inserted into the supporting hole (2301), and the other end of the connecting shaft (2121) is fixedly connected to the connecting arm (211).

3. The cleaning device according to claim 2, characterized in that: Said The connecting shaft (2121) is an injection molded part; and / or, The connecting sleeve (2122) is an injection molded part; and / or, The connecting arm (211) is made of stainless steel; and / or, The connecting shaft (2121) and the connecting arm (211) are connected by injection molding.

4. The cleaning device according to claim 2, characterized in that: A mounting groove is formed between the connecting sleeve (2122) and the connecting shaft (2121), and the first connecting portion (21) further comprises: The first bearing (213) is arranged in the installation groove. The first bearing (213) is sleeved on the connecting shaft (2121). The inner ring of the first bearing (213) is interference fit with the connecting shaft (2121), and the outer ring of the first bearing (213) is interference fit with the connecting sleeve (2122).

5. The cleaning device according to claim 4, characterized in that: The connecting sleeve (2122) has a through hole, and the through hole includes a first hole section and a second hole section that are connected in sequence along the axial direction of the connecting sleeve (2122), and the diameter of the first hole section is smaller than the diameter of the second hole section; the connecting shaft (2121) includes a first shaft section and a second shaft section that are connected in sequence along the axial direction, and the diameter of the first shaft section is smaller than the diameter of the second shaft section, and the second shaft section and the end where the first shaft section is connected to the second shaft section are located in the second In the hole section, one end of the first shaft section away from the second shaft section is inserted into the support hole (2301), and a mounting groove is formed between the parts of the first shaft section and the second shaft section located in the second hole section and the connecting sleeve (2122).

6. The cleaning device according to claim 2, characterized in that: The roller brush portion (23) comprises: Roller brush body (231); The support portion (232) is arranged in the roller brush body (231); one end of the support portion (232) facing the connecting sleeve (2122) is provided with the support hole (2301); the connecting sleeve (2122) is snap-connected with the support portion (232).

7. The cleaning device according to claim 1, characterized in that: The cleaning device further comprises a magnetic attraction portion (70), wherein the magnetic attraction portion (70) is arranged on the housing assembly (10), and the first connecting portion (21) is magnetically matched with the magnetic attraction portion (70).

8. The cleaning device according to claim 1, characterized in that: The first connecting portion (21) and the second connecting portion (22) are respectively arranged on the housing assembly (10) in a liftable manner, the rolling brush portion (23) is used to abut against the area to be cleaned, and the cleaning device further comprises: A body component (30) rotatably disposed on the housing assembly (10); A first driving unit (40) is arranged on the housing assembly (10), and the first driving unit (40) is drivingly connected to the cleaning assembly (20) so as to enable the cleaning assembly (20) to be raised or lowered; a detection member (50), wherein a detection portion of the detection member (50) is arranged toward at least a portion of the body component (30) to detect an inclination angle of the body component (30), and the detection member (50) is electrically connected to the first driving unit (40); A control component is electrically connected to the first driving part (40) and the detection component (50), respectively. When the detection component (50) detects that the inclination angle of the body component (30) relative to the floor brush component is less than a first preset angle, the control component controls the first driving part (40) to drive the cleaning component (20) to move in a direction close to the area to be cleaned so as to increase the friction between the cleaning component (20) and the area to be cleaned.

9. The cleaning device according to claim 8, characterized in that The cleaning device also includes: An elastic part (60), two ends of the elastic part (60) are respectively used to abut against at least a portion of the housing component (10) and the bottom of the cleaning component (20) to apply an upward force to the cleaning component (20).

10. The cleaning device according to claim 8, characterized in that The body component (30) comprises a rotating shaft (31) and is rotatably arranged on the housing assembly (10) via the rotating shaft (31), wherein the rotating shaft (31) has two end surfaces arranged opposite to each other along an axial direction; the detection member (50) comprises: A first sensing portion (51) is disposed on one end surface of the rotating shaft (31), wherein the first sensing portion (51) is eccentrically disposed with respect to the rotating shaft (31); The second sensing portion (52) is arranged on the housing assembly (10). The second sensing portion (52) is located on the side of the rotating shaft (31) where the end surface of the first sensing portion (51) is located. The second sensing portion (52) and the first sensing portion (51) are inductively matched. The second sensing portion (52) forms a detection portion of the detection member (50). When the body component (30) is in an initial position and the inclination angle of the body component (30) relative to the floor brush component is a first preset angle, the first sensing portion (51) and the second sensing portion (52) are arranged opposite to each other. When the inclination angle of the body component (30) relative to the floor brush component is less than the first preset angle, the first sensing portion (51) and the second sensing portion (52) are arranged in a staggered manner.

11. The cleaning device according to claim 10, characterized in that When the inclination angle of the body component (30) relative to the floor brush component is less than the first preset angle, an induction signal is triggered between the first sensing portion (51) and the second sensing portion (52), and the control component controls the first driving portion (40) to drive the cleaning component (20) to move in a direction close to the area to be cleaned.

12. The cleaning device according to claim 11, characterized in that When the inclination angle of the body component (30) relative to the floor brush component is equal to the first preset angle, along the axial direction of the rotating shaft (31), the first sensing portion (51) has the largest projection area on the second sensing portion (52), and the sensing signal between the first sensing portion (51) and the second sensing portion (52) is the strongest; when the inclination angle of the body component (30) relative to the floor brush component gradually decreases, along the axial direction of the rotating shaft (31), the projection area of ​​the first sensing portion (51) on the second sensing portion (52) gradually decreases, and the sensing signal between the first sensing portion (51) and the second sensing portion (52) gradually weakens, and the control component controls the first driving portion (40) to apply a force in the direction of the area to be cleaned to the cleaning component (20) to gradually increase.

13. The cleaning device according to claim 10, characterized in that The detection member (50) further comprises: The third sensing portion (53) is arranged on the end surface of the rotating shaft (31) on which the first sensing portion (51) is arranged; the third sensing portion (53) and the first sensing portion (51) are spaced apart and distributed along the circumference of the rotating shaft (31); the second sensing portion (52) and the third sensing portion (53) are inductively matched; the body component (30) has an extreme tilt position; when the body component (30) is in the extreme tilt position, the tilt angle of the body component (30) relative to the floor brush component is a third preset angle; and the third sensing portion (53) and the first sensing portion (51) are arranged opposite to each other.

14. The cleaning device according to claim 13, characterized in that When the inclination angle of the body component (30) relative to the floor brush component is less than a second preset angle, an induction signal is triggered between the third sensing portion (53) and the second sensing portion (52), and the control component controls the first driving portion (40) to drive the cleaning component (20) to move in a direction close to the area to be cleaned, wherein the second preset angle is less than the first preset angle, and the third preset angle is less than the second preset angle.

15. The cleaning device according to claim 14, characterized in that When the inclination angle of the body component (30) relative to the floor brush component is equal to the second preset angle, along the axial direction of the rotating shaft (31), the third sensing portion (53) has the smallest projection area on the second sensing portion (52), and the sensing signal between the third sensing portion (53) and the second sensing portion (52) is the weakest; when the inclination angle of the body component (30) relative to the floor brush component gradually decreases, along the axial direction of the rotating shaft (31), the projection area of ​​the third sensing portion (53) on the second sensing portion (52) gradually increases, the sensing signal between the third sensing portion (53) and the second sensing portion (52) gradually increases, and the control component controls the first driving portion (40) to gradually increase the force applied to the cleaning component (20) in the direction of the area to be cleaned.

16. The cleaning device according to claim 13, characterized in that The first sensing part (51) is a magnetic signal generating component, the third sensing part (53) is a magnetic signal generating component, and the second sensing part (52) is a magnetic signal detecting component (50).

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