Cutting assembly and cleaning equipment

Abstract

The utility model relates to the technical field of cleaning equipment, and discloses a cutting assembly and cleaning equipment, the cutting assembly comprises a shell, a driving device, comb teeth and a blade assembly, the blade assembly comprises a fixed blade and a movable blade; the driving device, the comb teeth and the fixed blade are all fixed to the shell, the movable blade is arranged at the position adjacent to the fixed blade, the driving device is connected with the movable blade and used for driving the movable blade to move, and the movable blade moving is used for being matched with the fixed blade together to cut an object. Each comb tooth comprises a main body part and an extension part which are connected, the blade assembly and the main body part are sequentially arranged in the moving direction of an object to be cut, and the extension part extends to the position below the blade assembly; the cleaning equipment mainly solves the technical problems that the blade of the existing cleaning equipment with the blade is easy to damage and the blade is easy to hurt a user.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a cutting component and cleaning equipment. Background Art

[0002] Currently, sweepers and other cleaning equipment are widely used. The working component of a sweeper is a rotating brush. During sweeping, the brush contacts the ground, sweeping up dust and picking it up. During the automatic sweeping process, long, thin, fibrous debris, such as hair, can easily become entangled in the brush, affecting its cleaning effectiveness. Furthermore, these entangled hairs are difficult to remove. In the latest existing technology, some sweepers utilize blades to cut through the hair entangled in the brush, thereby removing the entanglement and removing the hair. However, in existing sweepers equipped with blades, the blades are arranged only on one side of the comb teeth, along the direction of the debris's movement. This results in significant resistance to the blades cutting through the debris. As the sweeper is cleaning, the debris rotating with the brush causes significant wear on the blades, affecting their effectiveness in cutting through the fibrous debris. Secondly, when the robot vacuum is cleaning, pets can easily get caught in the blades and be injured by the blades that are exposed too much. In addition, when the blades get stuck and manual intervention is required to clean the stuck position, the blades that are exposed too much in existing robot vacuums can easily be accidentally touched and injure the user, which has a great impact on the user experience.

[0003] Therefore, there is a need to improve the existing technology.

[0004] The above information is presented as background information only to assist with an understanding of the present disclosure and is not a determination or admission that any of the above may be applicable as prior art with respect to the present disclosure. Utility Model Content

[0005] The utility model provides a cutting assembly and a cleaning device, which mainly solve the technical problems that the blades of the existing cleaning devices with blades are easily damaged and the blades are easy to hurt users.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A cutting assembly comprises a housing, a driving device, comb teeth and a blade assembly, wherein the blade assembly comprises a fixed blade and a movable blade;

[0008] The driving device, the comb teeth and the fixed blade are all fixed to the housing, the movable blade is provided at a position adjacent to the fixed blade, the driving device is connected to the movable blade and is used to drive the movable blade to move, and the movable blade is used to cooperate with the fixed blade to cut an object;

[0009] The comb teeth include a main body and an extension portion connected to each other. The blade assembly and the main body are sequentially arranged along the moving direction of the object to be cut, and the extension portion extends to the bottom of the blade assembly.

[0010] In one of the technical solutions, the main body, the fixed blade, and the movable blade are arranged in sequence along the opposite direction of the moving direction of the object to be cut, so that the movable blade is arranged on the side of the fixed blade facing away from the main body, and the extension portion extends to the bottom of the fixed blade.

[0011] In one of the technical solutions, the movable blade includes a blade body, a bending portion and a cutting portion connected in sequence, the cutting portion is abutted against a side of the fixed blade facing away from the main body, and one end of the bending portion facing away from the extension portion is bent in a direction away from the fixed blade to form the bending portion.

[0012] In one of the technical solutions, the cutting assembly further includes a spring, a first end of which is fixed to the housing, and a second end of which is away from the first end applies elastic force to the movable blade, so that the cutting portion is subjected to the elastic force of the spring and abuts against the fixed blade.

[0013] In one of the technical solutions, the cutting assembly further includes a bracket, which is limited on the shell and can move back and forth relative to the shell, the movable blade is fixed on the bracket, and the bracket is connected to the driving device. The driving device drives the bracket to move to drive the movable blade to move relative to the fixed blade, and the second end of the spring contacts the surface of the bracket to make the cutting portion contact the fixed blade.

[0014] In one of the technical solutions, a groove is provided on the side of the bracket facing away from the moving blade, and a protrusion is provided on the second end of the spring, which is embedded in the groove. The length direction of the protrusion is the same as the direction of the reciprocating movement of the bracket relative to the shell.

[0015] In one of the technical solutions, the driving device includes a motor and a cam, the motor is fixed on the housing, the cam is connected to the output shaft of the motor, a strip hole is provided on the bracket, and at least a portion of the cam is inserted into the strip hole.

[0016] In one of the technical solutions, the distance between the end surface of the movable blade facing the extension portion and the end surface of the fixed blade facing the extension portion is 1-1.5 mm.

[0017] The present application also provides a cleaning device, including a main body and the above-mentioned cutting assembly connected to the main body, the main body including a motor and a roller brush connected to the motor, the motor is fixedly connected to the housing of the main body, the motor is connected to the roller brush and is used to drive the roller brush to rotate relative to the housing, the rotating roller brush is used to sweep away garbage, the comb teeth are arranged on the rotation path of the roller brush, and the main body and the blade assembly are arranged in sequence along the opposite direction of the rotation of the roller brush.

[0018] In one of the technical solutions, an electrically connected controller and a detection device are provided in the cleaning device. The controller is electrically connected to the driving device and the motor respectively. The detection device is used to detect whether the movable blade is stuck. When the detection device detects that the movable blade is stuck, the controller is used to control the driving device and the motor to stop working.

[0019] Compared with the prior art, the cutting assembly provided by the present invention has at least the following beneficial effects:

[0020] This solution designs the existing comb teeth to include a main body and an extension part, and the extension part is specifically configured to extend to the bottom of the blade assembly, that is, the fixed blade and the movable blade can be hidden above the extension part. On the one hand, during operation, garbage such as hair is first combed by the extension part of the comb teeth, and then because the blade assembly is located above the extension part, garbage such as hair can also be cut by the blade assembly during the combing process, thereby effectively reducing the cutting difficulty of the blade assembly, thereby reducing the wear of the blade assembly and extending the service life of the blade assembly; on the other hand, even if a pet is caught inside, the hidden blade assembly is not easy to hurt the pet due to the effective shielding of the extension part of the comb teeth; on the third hand, since the extension part of the comb teeth effectively shields the blade assembly, when the blade assembly is stuck and manual intervention is required to clean the stuck position, the problem of the blade assembly being accidentally touched and hurting the user can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A diagram showing the internal structure of a cleaning device provided in an embodiment of the present application when viewed from above;

[0023] Figure 2A diagram showing the internal structure of a cleaning device provided in an embodiment of the present application when viewed from above;

[0024] Figure 3 A cross-sectional view of a cleaning device provided in an embodiment of the present application at the position of a roller brush and glue stick;

[0025] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0026] Figure 5 A schematic structural diagram of a cutting assembly provided in an embodiment of the present application;

[0027] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0028] Figure 7 for Figure 5 The schematic diagram of the structure of the cutting assembly shown is from another angle;

[0029] Figure 8 Schematic diagram of the electrical control connection of the cleaning equipment provided in an embodiment of the present application.

[0030] Reference numerals:

[0031] 1. Main unit; 11. Housing; 12. Motor; 13. Roller brush and glue stick; 131. Hair transplantation

[0032] 2. Cutting assembly; 21. Housing; 22. Driving device; 221. Motor; 222. Cam; 23. Comb teeth; 231. Main body; 232. Extension; 24. Blade assembly; 241. Fixed blade; 242. Moving blade; 2421. Blade body; 2422. Bending portion; 2423. Cutting portion; 25. Shrapnel; 251. First end; 252. Second end; 253. Protrusion; 26. Bracket; 261. Groove; 262. Strip hole. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0034] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0035] It should be understood that the terms, "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 a limitation on this application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0038] Please also refer to Figures 1 to 7 An embodiment of the present invention provides a cleaning device, which takes a sweeper as an example. The cleaning device includes a main unit 1 and a cutting component 2 connected to the main unit 1. The main unit 1 is used to realize the basic sweeping and cleaning function, and the cutting component 2 is used to cut the injected hair garbage to prevent the hair from being entangled inside and affecting the normal operation of the sweeper.

[0039] The main unit 1 mainly includes a housing 11, a motor 12, and a roller brush 13. The motor 12 is fixed to the housing 11, and the roller brush 13 is connected to the motor 12. The motor 12 is used to drive the roller brush 13 to rotate. A plurality of bristles 131 are fixed to the roller brush 13. Driven by the motor 12, the bristles 131 will rotate relative to the housing 11 along with the roller brush 13. The rolling bristles 131 are used to sweep away garbage. The main unit 1 usually also includes a dust suction device to suck away the garbage swept by the bristles 131, thereby improving the cleanliness of the floor sweeper. The component composed of the roller brush 13 and the bristles 131 is called a roller brush.

[0040] Among them, the cutting component 2 specifically includes a shell 21, a drive device 22, comb teeth 23 and a blade assembly 24. The shell 21 is fixedly connected to the above-mentioned casing 11. The shell 21 can also be an integrally formed structure with the above-mentioned casing 11. The drive device 22 and the comb teeth 23 are both fixed on the shell 21. The blade assembly 24 specifically includes a fixed blade 241 and a movable blade 242. The fixed blade 241 is fixed on the shell 21, and the movable blade 242 is arranged at an adjacent position to the fixed blade 241. The drive device 22 is connected to the movable blade 242 and is used to drive the movable blade 242 to move. The movable movable blade 242 is used to cooperate with the fixed blade 241 to cut garbage objects such as hair to remove the hair entangled in the implanted hair 131, thereby ensuring that the sweeper can perform cleaning work normally and ensure that the sweeper has a better cleaning effect.

[0041] The comb teeth 23 specifically include a main body 231 and an extension 232 connected to each other, and the blade assembly 24 and the main body 231 move in the direction of movement of the object to be cut (such as hair and garbage) (equivalent to Figure 4 The extension portion 232 extends to the bottom of the blade assembly 24, that is, the fixed blade 241 and the movable blade 242 can be hidden above the extension portion 232, so that the hair can be combed by the extension portion 232 of the comb teeth 23 and can also be cut by the blade assembly 24. On the one hand, during operation, garbage such as hair can be combed by the extension portion 232 of the comb teeth 23 first, and then the garbage such as hair can be cut by the blade assembly 24 while continuing to be combed by the extension portion 232, thereby effectively reducing the hair loss. On the one hand, the cutting difficulty of the blade assembly 24 is reduced, thereby reducing the wear of the blade assembly 24 and extending the service life of the blade assembly 24; on the other hand, even if the pet is caught inside, the pet is not easily harmed by the extended portion 232 of the comb teeth 23 due to the effective shielding of the blade assembly 24 by the extended portion 232 of the comb teeth 23; on the other hand, when the blade assembly 24 is stuck and manual intervention is required to clean the stuck position, the problem of the blade assembly 24 being accidentally touched and hurting the user can be avoided.

[0042] In this embodiment, the main body 231 of the comb teeth 23, the fixed blade 241, and the movable blade 242 are arranged in the opposite direction of the rotation direction of the implanted hair 131 (i.e., the opposite direction of the moving direction of the hair garbage, which is equivalent to the direction of the hair garbage moving direction). Figure 4 The movable blade 242 is arranged in sequence (in the counterclockwise direction in the figure), so that the movable blade 242 is arranged on the side of the fixed blade 241 facing away from the main body 231. At this time, the extension portion 232 of the comb teeth 23 is equivalent to extending to at least below the fixed blade 241. Through such a design, it is possible to prevent the movable blade 242 from rubbing against the main body 231 during the reciprocating movement of cutting, thereby helping to increase the service life of the movable blade 242.

[0043] In this embodiment, the movable blade 242 includes a blade body 2421, a bending portion 2422 and a cutting portion 2423 connected in sequence. The cutting portion 2423 is abutted against a side of the main body 231 of the fixed blade 241 facing away from the comb teeth 23. One end of the cutting portion 2423 facing away from the extension portion 232 is bent in a direction away from the fixed blade 241 to form the above-mentioned bending portion 2422. By providing the bending portion 2422, the contact area between the movable blade 242 and the fixed blade 241 is reduced, thereby effectively preventing the movable blade 242 from being worn too much and further improving the service life of the movable blade 242.

[0044] In this embodiment, the cutting assembly 2 also includes a spring piece 25, a first end 251 of the spring piece 25 is fixed to the housing 21, and a second end 252 of the spring piece 25 away from the first end 251 applies an elastic force to the blade body 2421 of the movable blade 242, so that the movable blade 242 is subjected to the elastic force of the spring piece 25 so that the cutting portion 2423 abuts against the fixed blade 241, thereby ensuring that the cutting portion 2423 can maintain abutment against the fixed blade 241 in the length direction, thereby improving the reliability of the movable blade 242 in cutting hair.

[0045] In this embodiment, the cutting assembly 2 also includes a bracket 26, which is limited on the shell 21 and can reciprocate in the X direction relative to the shell 21. Multiple movable blades 242 are fixed on this bracket 26. The bracket 26 is connected to the driving device 22. The driving device 22 drives the bracket 26 to reciprocate in the X direction to drive the multiple movable blades 242 to reciprocate in the X direction relative to the fixed blade 241. The second end 252 of the spring 25 abuts against the surface of the bracket 26 to make the cutting portion 2423 abut on the fixed blade 241. Preferably, a groove 261 is provided on a side of the bracket 26 facing away from the movable blade 242, and a protrusion 253 is provided on the second end 252 of the spring piece 25. The protrusion 253 is embedded in the groove 261 to increase the elastic contact area between the spring piece 25 and the bracket 26. In addition, the length direction in which the protrusion 253 extends is collinear with the direction in which the bracket 26 reciprocates relative to the housing 21, that is, the length direction in which the protrusion 253 extends is also the X direction. At this time, in addition to exerting an elastic force on the bracket 26, the protrusion 253 also serves as a guide rail, so that the bracket 26 can only reciprocate along the X direction.

[0046] Based on the structural design of the bracket 26 described above, in this embodiment, the drive device 22 is preferably designed to include a motor 221 and a cam 222. The motor 221 is fixed to the housing 21, and the cam 222 is connected to the output shaft of the motor 221. The bracket 26 is provided with a strip-shaped hole 262, into which at least a portion of the cam 222 is inserted. During operation, the motor 221 drives the cam 222 to rotate eccentrically. The cam 222 compresses the wall of the strip-shaped hole 262, pushing the bracket 26 to reciprocate linearly along the X-direction, thereby driving the movable blade 242 to reciprocate along the X-direction to cut hair waste.

[0047] See also Figure 6 The distance H between the end face of the extension part 232 of the movable blade 242 facing the comb teeth 23 and the end face of the extension part 232 of the fixed blade 241 facing the comb teeth 23 is 1-1.5mm. Through such a design, while ensuring that the movable blade 242 can cut off the hair garbage, the straight hair in the implanted hair 131 can be protected from being cut by the movable blade 242. At the same time, the wear of the movable blade 242 is further reduced and the movable blade 242 is further prevented from hurting the user or pet.

[0048] See also Figure 8 The cleaning device of this embodiment is provided with a controller and a detection device electrically connected to each other, wherein the controller is electrically connected to the drive device 22 and the motor 12 respectively to control the working state of the drive device 22 and the working state of the motor 12 respectively, that is, in addition to controlling whether the roller brush glue stick 13 rotates and the rotation speed, the controller also controls whether the movable blade 242 moves back and forth along the X direction. In addition, the detection device is also used to detect whether the movable blade 242 is stuck. When the detection device detects that the movable blade 242 is stuck, the controller will control the drive device 22 and the motor 12 to stop working, so that the roller brush glue stick 13 and the movable blade 242 stop moving respectively, so that the user can safely resolve the stuck position through manual intervention.

[0049] The above is merely a preferred embodiment of the present invention and only specifically describes the technical principles of the present invention. These descriptions are intended only to explain the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention, as well as other specific embodiments of the present invention that can be imagined by those skilled in the art without inventive effort, shall be included within the scope of protection of the present invention.

Claims

1. A cutting assembly, characterized in that: It includes a housing, a driving device, comb teeth and a blade assembly, wherein the blade assembly includes a fixed blade and a movable blade; The driving device, the comb teeth and the fixed blade are all fixed to the housing, the movable blade is provided at a position adjacent to the fixed blade, the driving device is connected to the movable blade and is used to drive the movable blade to move, and the movable blade is used to cooperate with the fixed blade to cut an object; The comb teeth include a main body and an extension portion connected to each other. The blade assembly and the main body are sequentially arranged along the moving direction of the object to be cut, and the extension portion extends to the bottom of the blade assembly.

2. The cutting assembly according to claim 1, wherein: The main body, the fixed blade and the movable blade are sequentially arranged in the opposite direction of the moving direction of the object to be cut, so that the movable blade is arranged on the side of the fixed blade facing away from the main body, and the extension portion extends to the bottom of the fixed blade.

3. The cutting assembly according to any one of claims 1 or 2, characterized in that The movable blade includes a blade body, a bending portion and a cutting portion connected in sequence. The cutting portion abuts against a side of the fixed blade facing away from the main body. An end of the bending portion facing away from the extending portion is bent in a direction away from the fixed blade to form the bending portion.

4. The cutting assembly according to claim 3, wherein: The cutting assembly further includes a spring, a first end of which is fixed to the housing, and a second end of which is away from the first end applies elastic force to the movable blade, so that the cutting portion is pressed against the fixed blade by the elastic force of the spring.

5. The cutting assembly according to claim 4, wherein: The cutting assembly also includes a bracket, which is limited on the shell and can reciprocate relative to the shell. The movable blade is fixed on the bracket. The bracket is connected to the driving device. The driving device drives the bracket to move to drive the movable blade to move relative to the fixed blade. The second end of the spring contacts the surface of the bracket to make the cutting portion contact the fixed blade.

6. The cutting assembly according to claim 5, wherein: A groove is provided on a side of the bracket facing away from the movable blade, and a protrusion is provided on the second end of the elastic piece. The protrusion is embedded in the groove, and the length direction of the protrusion is collinear with the direction in which the bracket moves back and forth relative to the housing.

7. The cutting assembly according to claim 5, wherein: The driving device includes a motor and a cam. The motor is fixed on the housing. The cam is connected to the output shaft of the motor. A strip hole is provided on the bracket. At least a part of the cam is inserted into the strip hole.

8. The cutting assembly according to claim 1, wherein: A distance between an end surface of the movable blade facing the extending portion and an end surface of the fixed blade facing the extending portion is 1-1.5 mm.

9. A cleaning device, characterized in that: The present invention comprises a main body and a cutting assembly according to any one of claims 1 to 8 connected to the main body, the main body comprising a motor and a roller brush connected to the motor, the motor being fixedly connected to the housing of the main body, the motor being used to drive the roller brush to rotate relative to the housing, the rotating roller brush being used to sweep away garbage, the comb teeth being arranged on the rotation path of the roller brush, the main body and the blade assembly being arranged in sequence along the opposite direction of the rotation of the roller brush.

10. The cleaning device according to claim 9, wherein The cleaning device is provided with an electrically connected controller and a detection device, the controller is electrically connected to the driving device and the motor respectively, the detection device is used to detect whether the movable blade is stuck, when the detection device detects that the movable blade is stuck, the controller is used to control the driving device and the motor to stop working.

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