Hair cutting device of sweeping robot

Abstract

The invention discloses a sweeping robot hair cutting device which comprises side stoppers, a bristle module, a roller shell, a cutting module and a linear driving module, the side stoppers are mounted at two ends of the roller shell, the bristle module is inserted into the surface of the roller shell, the linear driving module is arranged in the roller shell, and a gap is formed in the side surface of the roller shell. The cutting module is arranged at the gap, the linear driving module is in driving connection with the cutting module, the cutting module comprises a movable blade, a fixed blade and a blade fixing frame, the linear driving module comprises a stator assembly, a rotor assembly, a torsion spring and an elastic piece, the stator assembly establishes a static magnetic field, and the stator assembly is in electromagnetic force driving connection with the rotor assembly. The linear driving module drives the movable blade to reciprocate at a high speed, the movable blade and the fixed blade form shearing, wound hair is rapidly cut off, clamping stagnation of the roller is effectively prevented, and the device is suitable for various rolling brush type sweeping robots and has good compatibility and practicability.

Description

Technical Field

[0001] This invention relates to the field of cleaning appliance technology, specifically to a hair-cutting device for a sweeping robot. Background Technology

[0002] Most robotic vacuum cleaners or floor scrubbers on the market use a roller brush structure for floor cleaning. However, during the cleaning process, hair can easily get tangled on the roller brush. Over time, this can cause the roller brush to rotate poorly, reduce cleaning effectiveness, or even cause the motor to jam, requiring users to clean it manually frequently, which affects the user experience.

[0003] Existing robotic vacuum cleaners are equipped with hair-cutting devices, which cut hair by placing fixed blades next to the roller brush. However, these devices suffer from problems such as low cutting efficiency, easy blade jamming, and complex structure that makes them difficult to maintain.

[0004] Therefore, we propose a hair-cutting device for a sweeping robot to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a hair-cutting device for a sweeping robot to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hair cutting device for a sweeping robot, comprising: a side baffle, a brush module, a roller housing, a cutting module and a linear drive module, wherein the side baffle is installed at both ends of the roller housing, the brush module is inserted into the surface of the roller housing, the linear drive module is disposed inside the roller housing, a slit is opened on the side of the roller housing, and the cutting module is disposed in the slit, and the linear drive module drives and connects to the cutting module. The linear drive module includes a stator assembly, a mover assembly, a torsion spring, and a spring sheet; The stator assembly and the mover assembly are arranged in several groups. The stator assembly is fixedly set, and the mover assembly is movably set above the stator assembly. The mover assembly is connected to the movable blade. The stator assembly establishes a static magnetic field, and the electromagnetic force of the stator assembly drives the mover assembly.

[0007] Preferably, the roller housing is divided into two parts, and a slot is formed on its surface, through which the bristle module is inserted from the end.

[0008] Preferably, comb teeth are provided at the joint of the two parts of the roller shell, the comb teeth protrude in a centrifugal direction, and the two comb teeth are respectively located on the upper and lower surfaces of the cutting module.

[0009] Preferably, a support structure is provided inside the roller housing, which supports and fixes the stator assembly, torsion spring, and spring sheet of the linear drive module.

[0010] Preferably, the cutting module includes a movable blade, a fixed blade, and a blade holder; A fixed blade is mounted on the blade holder, and a movable blade is mounted above the fixed blade.

[0011] Preferably, one torsion spring is provided on each side of each stator assembly, and the end of the torsion spring is connected to the blade fixing bracket.

[0012] Preferably, the two ends of the moving part are fixedly connected to spring pieces, and the spring pieces are fixedly set.

[0013] Preferably, the stator assembly includes a magnetic sheet, an FPC, and a coil array. The magnetic sheet is fixedly disposed, and the coil array is fixedly disposed on the upper surface of the magnetic sheet. The coil array is electrically connected to the FPC. The mover assembly includes a magnetic circuit support, pole pieces, and a magnet array. Spring pieces are fixedly connected to both ends of the magnetic circuit support. The pole pieces are fixedly mounted on the magnetic circuit support, and the magnet array is fixedly mounted on the lower surface of the pole pieces.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The linear drive module drives the movable blade to reciprocate at high speed, forming a shearing action with the fixed blade to quickly cut off tangled hair and effectively prevent the roller from jamming. It is suitable for roller brush vacuuming devices such as roller brush sweeping robots, sweeping robot base stations, floor scrubbers and vacuum cleaners, and has good compatibility and practicality. 2. The roller housing adopts a split design, and the bristle module is quickly inserted and installed through the slot, which is convenient for replacement and maintenance; 3. Comb teeth are installed at the joint of the roller shell to guide the hair vertically through the cutting area, thereby improving the cutting success rate; 4. The moving part assembly achieves balance and buffering through springs and torsion springs, reducing vibration and noise and extending the service life of the whole machine. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a disassembly diagram of the side baffle, brush module, and roller housing in this invention; Figure 3 This is a side view of the brush module, roller housing, and linear drive module in this invention; Figure 4 This is a disassembly diagram of the side baffle, roller housing, and linear drive module in this invention; Figure 5 This is a schematic diagram of the structure of the drum shell in this invention; Figure 6 This is a schematic diagram of the linear drive module in this invention; Figure 7 This is a disassembly diagram of the cutting module in this invention; Figure 8 This is a disassembly diagram of the linear drive module in this invention.

[0016] In the diagram: 1. Side baffle; 2. Brush module; 3. Roller housing; 31. Slot; 32. Comb teeth; 34. Support structure; 4. Cutting module; 41. Movable blade; 42. Fixed blade; 43. Blade holder; 5. Linear drive module; 51. Stator assembly; 52. Mover assembly; 53. Torsion spring; 54. FPC; 55. Spring; 56. Coil array; 57. Magnet array. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-8 The present invention provides a technical solution: a hair cutting device for a sweeping robot, comprising: a side baffle 1, a brush module 2, a roller housing 3, a cutting module 4, and a linear drive module 5. The side baffle 1 is installed at both ends of the roller housing 3. The brush module 2 is inserted into the surface of the roller housing 3. The linear drive module 5 is disposed inside the roller housing 3. A slit is opened on the side of the roller housing 3, and the cutting module 4 is disposed in the slit. The linear drive module 5 drives and connects to the cutting module 4. A conductive slip ring is disposed inside the side baffle 1 and is conductively connected to the linear drive module 5. During the rolling process of the roller housing 3, the brush module 2 brushes the ground. When brushing the hair, the hair wraps around the surface of the roller housing 3 and is cut into pieces by the cutting module 4. Then, it is collected by the negative pressure structure of the sweeping robot to prevent the hair from getting too tangled on the roller housing 3 and causing the roller housing 3 to get stuck.

[0019] The roller housing 3 is divided into two parts, and a slot 31 is opened on its surface. The slot 31 is inserted into the bristle module 2 from the end, so as to realize the quick assembly of the bristle module 2 and the roller housing 3.

[0020] Comb teeth 32 are provided at the joint of the two parts of the roller housing 3. The comb teeth 32 protrude in a centrifugal direction. The two comb teeth 32 are located on the upper and lower surfaces of the cutting module 4 respectively. The comb teeth 32 are used to comb the hair so that the hair passes through the cutting module 4 perpendicularly.

[0021] A support structure 34 is provided inside the drum housing 3. The support structure 34 is used to support the linear drive module 5 and fix part of the structure of the linear drive module 5.

[0022] The cutting module 4 includes a movable blade 41, a fixed blade 42, and a blade holder 43. The fixed blade 42 is mounted on the blade holder 43, and the movable blade 41 is mounted above the fixed blade 42. The movable blade 41 is driven to move linearly by the linear drive module 5, and the movable blade 41 and the fixed blade 42 cut the hair alternately.

[0023] The linear drive module 5 includes a stator assembly 51, a mover assembly 52, a torsion spring 53, and a spring sheet 55; Two sets of stator assembly 51 and mover assembly 52 are provided respectively. The stator assembly 51 is fixedly set, and the mover assembly 52 is movably set above the stator assembly 51. The mover assembly 52 is connected to the movable blade 41. The stator assembly 51 establishes a static magnetic field to provide the electromagnetic field environment required for the movement of the mover assembly 52. ​​Driven by electromagnetic force in the magnetic field of the mover assembly 52, it performs precise linear reciprocating motion, which drives the movable blade 41 to reciprocate linearly.

[0024] One torsion spring 53 is provided on each side of each stator assembly 51. The end of the torsion spring 53 is connected to the blade holder 43, which is used to apply an elastic force to the blade holder 43, thereby making the fixed blade 42 and the movable blade 41 elastic.

[0025] The two ends of the mover assembly 52 are fixedly connected to the spring plates 55. The spring plates 55 are fixedly set to provide the necessary restoring force or preload, and at the same time to maintain the balanced position of the mover assembly 52 or absorb vibration.

[0026] Stator assembly 51 includes a magnetic sheet, FPC 54 and coil array 56. The magnetic sheet is fixedly installed, and the coil array 56 is fixedly installed on the upper surface of the magnetic sheet. The coil array 56 is electrically connected to FPC 54. Mover assembly 52 includes a magnetic circuit support, pole pieces and magnet array 57. Spring pieces 55 are fixedly connected to both ends of the magnetic circuit support. The pole pieces are fixedly installed on the magnetic circuit support, and the magnet array 57 is fixedly installed on the lower surface of the pole pieces. The coil array 56 generates a magnetic field through the energization of the FPC 54, which interacts with the magnet array 57. The magnetic circuit support moves back and forth at high speed. The magnetic circuit support is fixedly connected to the movable blade 41. The movable blade 41 and the fixed blade 42 form a reciprocating shearing action, thereby completing the hair cutting.

[0027] Working principle: When the robot vacuum cleaner is working, the roller shell 3 rolls, the brush module 2 contacts the ground and cleans with the roller brush. When hair is rolled in and wrapped around the surface of the roller shell 3, as the roller rotates, the wrapped hair passes through the comb teeth 32.

[0028] After the linear drive module 5 is powered on, the coil array 56 generates a magnetic field through the FPC 54, which interacts with the magnet array 57, driving the actuator assembly 52 to move the movable blade 41 in a high-speed reciprocating linear motion. The movable blade 41 and the fixed blade 42 form a shearing motion, cutting the passing hair into fragments. The comb teeth 32 are set at the joint of the roller shell 3 to guide the hair vertically through the cutting area, thereby improving the cutting efficiency.

[0029] The cut hair fragments are collected by the negative pressure suction system of the robot vacuum cleaner, thus preventing hair from getting tangled for a long time, which could cause the roller to get stuck or reduce cleaning efficiency.

[0030] The torsion spring 53 provides elastic preload to ensure that there is an appropriate gap and fit between the movable blade 41 and the fixed blade 42. The spring 55 maintains the balanced position of the moving part assembly 52 and absorbs vibration, ensuring a smooth and reliable cutting process.

[0031] In addition, the cutting module 4 and the linear drive module 5 of this application can be directly installed in the base station of the sweeping robot to cut and break the hair on the surface of the sweeping robot's roller brush, preventing hair from accumulating on the surface of the sweeping robot's roller brush.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hair cutting device for a robotic vacuum cleaner, characterized in that, The utility model relates to a cutting device for cutting hair, comprising: Side stop (1), brush hair module (2), drum shell (3), cutting module (4) and linear drive module (5), the side stop (1) is installed at both ends of drum shell (3), the brush hair module (2) is inserted and is equipped on the surface of drum shell (3), the linear drive module (5) is arranged in drum shell (3), the gap is set up in the side of drum shell (3), and the cutting module (4) is arranged at the gap, and the linear drive module (5) is drivenly connected cutting module (4); The linear drive module (5) includes a stator assembly (51), a rotor assembly (52), a torsion spring (53) and a spring piece (55); The stator assembly (51) and the rotor assembly (52) are respectively provided with a plurality of groups, the stator assembly (51) is fixedly arranged, the rotor assembly (52) is movably arranged above the stator assembly (51), the rotor assembly (52) is connected with the movable blade (41), the stator assembly (51) establishes a static magnetic field, and the stator assembly (51) is drivenly connected with the rotor assembly (52) by electromagnetic force.

2. The hair cutting apparatus of claim 1, wherein, The drum shell (3) is divided into two parts, a clamping groove (31) is formed on the surface of the two parts, and the clamping groove (31) is inserted into the brush hair module (2) from the end.

3. The hair cutting apparatus of claim 2, wherein, The two parts of the drum shell (3) are provided with comb teeth (32) at the butt joint, the comb teeth (32) are protruded in a centrifugal direction, and the two comb teeth (32) are respectively located on the upper and lower surfaces of the cutting module (4).

4. The hair cutting apparatus of claim 3, wherein, The drum shell (3) is provided with a support structure (34) inside, the support structure (34) supports and fixes the stator assembly (51), the torsion spring (53) and the spring piece (55) of the linear drive module (5).

5. The hair cutting apparatus of claim 1, wherein, The cutting module (4) includes a movable blade (41), a fixed blade (42) and a blade fixing frame (43); The fixed blade (42) is arranged on the blade fixing frame (43), and the movable blade (41) is arranged above the fixed blade (42).

6. The hair cutting apparatus of claim 1, wherein, The torsion spring (53) is arranged on both sides of each group of stator assemblies (51), and the end of the torsion spring (53) is connected with the blade fixing frame (43).

7. The hair cutting apparatus of claim 1, wherein, The spring piece (55) is fixedly connected to the two ends of the rotor assembly (52), and the spring piece (55) is fixedly arranged.

8. The hair cutting apparatus of claim 1, wherein, The stator assembly (51) includes a magnetic conducting sheet, an FPC (54) and a coil array (56), the magnetic conducting sheet is fixedly arranged, the coil array (56) is fixedly arranged on the upper surface of the magnetic conducting sheet, the coil array (56) is conductively connected with the FPC (54), the rotor assembly (52) includes a magnetic circuit support, a pole piece and a magnet array (57), the magnetic circuit support is fixedly connected with the spring piece (55) at both ends, the pole piece is fixedly installed on the magnetic circuit support, and the magnet array (57) is fixedly installed on the lower surface of the pole piece.

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