Hair cutting device for scrubber

Abstract

The utility model discloses a hair cutting device for a scrubber, which comprises a base and a scrubber body detachably mounted on the base, a rolling brush is arranged on the scrubber body, and the base comprises a hair cutting mechanism opposite to the rolling brush. The hair cutting mechanism comprises a fixed bottom plate arranged in the base, a rotary driving part arranged at the lower end of the middle part of the fixed bottom plate, a driving gear arranged on the output shaft of the rotary driving part, and a first cutting knife with one end meshed with the driving gear; the rotary driving part is arranged at the lower end of the middle part of the fixed bottom plate and an output shaft of the rotary driving part penetrates to the upper end of the fixed bottom plate; the middle part of the second cutting knife is meshed with the driving gear; and the operation direction of the second cutting knife is opposite to that of the first cutting knife. According to the hair cutting device for the scrubber, after the scrubber is placed in the base, the blades on the scrubber alternately and transversely slide, so that hair wound on the rolling brush is cut open, the hair is easy to clean, the service life of the rolling brush is effectively guaranteed, and follow-up cleaning work of the rolling brush is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of floor scrubbers, and in particular to a hair cutting device used on a floor scrubber. Background Art

[0002] A floor scrubber, also known as a floor washing car or a floor cleaning machine, is a cleaning machine suitable for cleaning hard floors. It also has the function of sucking up sewage and taking it away from the site. It has the advantages of environmental protection, energy saving, and high efficiency.

[0003] The roller brush of a floor scrubber is the main cleaning component of the floor scrubber. It usually cleans the floor by rotating the roller brush. A pipe connected to a clean water tank is provided on the roller brush. Water is sprayed onto the floor while the roller brush rotates, so that the roller brush drives the water to flush the floor while rolling, thereby achieving the purpose of cleaning.

[0004] However, when the roller brush is scrubbing the floor, the hair remaining on the floor will be entangled on the roller brush as it rotates, which is not conducive to the subsequent cleaning of the floor by the roller brush. Moreover, if the hair accumulates too much on the roller brush, it will be entangled on the rotating shaft of the roller brush, causing the roller brush to be unable to rotate. Utility Model Content

[0005] In view of the above-mentioned shortcomings, the purpose of the utility model is to provide a hair cutting device for a floor scrubber. When the floor scrubber is placed on a base, the blades thereon slide horizontally alternately, thereby cutting the hair wrapped around the roller brush, making the hair easy to clean, effectively ensuring the service life of the roller brush, and facilitating subsequent cleaning of the roller brush.

[0006] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

[0007] A hair cutting device for a floor scrubber comprises a base, and a floor scrubber body detachably mounted on the base, the floor scrubber body being provided with a roller brush, the base comprising a hair cutting mechanism directly opposite to the roller brush, the hair cutting mechanism comprising a fixed base plate arranged in the base, a rotating driving member arranged at the lower end of the middle part of the fixed base plate and having an output shaft extending through the upper end of the fixed base plate, a driving gear arranged on the output shaft of the rotating driving member, a first cutting knife having one end meshed with the driving gear, and a second cutting knife having a middle meshed with the driving gear and operating in the opposite direction to the first cutting knife.

[0008] As a further improvement of the present invention, the first cutting knife includes a first rack, a first meshing tooth formed on one end of the first rack facing the driving gear and meshing with one side of the driving gear, a first blade connecting member formed on the left side of the front end of the first rack and L-shaped as a whole, a first blade hook formed on the outermost side of the first blade connecting member and bent in the opposite direction, and a first blade body embedded in the first blade hook and not extending out of the first blade hook.

[0009] As a further improvement of the present invention, the second cutting knife includes a second rack, a second meshing tooth formed inside the second rack and meshing with the other side of the driving gear, a second blade connecting member formed on the right side of the front end of the second rack and L-shaped as a whole, a second blade hook formed on the outermost front side of the first blade connecting member and bent in the reverse direction, and a second blade body embedded in the second blade hook and not extending out of the second blade hook.

[0010] As a further improvement of the present invention, the first cutting knife and the second cutting knife are arranged in sequence up and down and meshed on the driving gear, and the first cutting knife and the second cutting knife are not on the same horizontal plane.

[0011] As a further improvement of the utility model, a first limiting guide rail is formed on the fixed base plate at a position corresponding to the first rack, and a first sliding limiting slider is protruded downward from the lower end of the first rack and slides in the first limiting guide rail.

[0012] As a further improvement of the utility model, a second limiting guide rail is formed on the fixed base plate at a position corresponding to the second rack, and a second sliding limiting slider is protruded downward from the lower end of the second rack and slides in the second limiting guide rail.

[0013] As a further improvement of the utility model, a blade interaction limit strip protruding upward is formed on the first rack, and a blade interaction limit slide rail sliding on the blade interaction limit strip is formed at the lower part of the second rack.

[0014] As a further improvement of the present invention, the hair cutting mechanism further comprises a cover plate covering the fixed base plate, and a propulsion assembly respectively arranged on both sides of the fixed base plate and pressed against the inner wall of the cover plate, wherein the propulsion assembly comprises a propulsion plate formed on the side edge of the fixed base plate and extending radially outward, and a propulsion elastic member having one end pressed against the propulsion plate and the other end pressed against the inner wall of the cover plate.

[0015] As a further improvement of the utility model, the base further comprises a shell for the scrubber body to be placed in, and a cutting groove for the first cutting knife and the second cutting knife to extend and slide is provided at one end of the shell facing the roller brush.

[0016] As a further improvement of the present invention, the hair cutting mechanism further comprises a micro switch arranged on one side of the fixed base plate and facing the second cutting knife, and the second cutting knife slides to the side of the fixed base plate to press and close the micro switch.

[0017] The beneficial effects of the utility model are:

[0018] The device is configured to include a base and a floor scrubber body detachably mounted on the base, a roller brush is arranged on the floor scrubber body, the base includes a hair cutting mechanism directly opposite to the roller brush, the hair cutting mechanism includes a fixed base plate arranged in the base, a rotating driving member arranged at the lower end of the middle part of the fixed base plate and whose output shaft passes through the upper end of the fixed base plate, a driving gear arranged on the output shaft of the rotating driving member, a first cutting knife with one end meshed with the driving gear, and a second cutting knife meshed with the driving gear in the middle and operating in the opposite direction to the first cutting knife. After cleaning the floor, the floor scrubber body is placed in the base. At this time, the roller brush on the floor scrubber body is facing the hair cutting mechanism. The rotating drive member is started, driving the driving gear arranged on its output shaft to rotate repeatedly, and the first cutting knife and the second cutting knife meshed with the driving gear are driven to slide horizontally and staggered. The first cutting knife and the second cutting knife extend into the fluff of the roller brush and cut the hair entangled in the fluff of the roller brush by staggered sliding, so that the hair is easy to clean, effectively ensuring the service life of the roller brush, and facilitating the subsequent cleaning of the roller brush. The whole process is simple and convenient, saving time and effort. By setting the second cutting knife to a structure with an opposite operating direction to the first cutting knife, when the first cutting knife is driven by the driving gear to cut to the left, the second cutting knife is synchronously driven by the driving gear to cut to the right, and when the first cutting knife is driven by the driving gear to cut to the right, the second cutting knife is synchronously driven by the driving gear to cut to the left, thereby achieving the purpose of staggered cutting of hair, making the device more efficient in cutting hair and easier to cut hair.

[0019] The above is an overview of the technical solution of the utility model. The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of the utility model;

[0021] Figure 2 is the overall schematic diagram of the base;

[0022] Figure 3 is an overall schematic diagram of a hair cutting mechanism;

[0023] Figure 4 A schematic diagram of the structure of the hair cutting mechanism without the cover plate;

[0024] Figure 5 A schematic diagram of the structure of the hair cutting mechanism when the cover plate is removed;

[0025] Figure 6 An exploded view of the hair cutting mechanism;

[0026] Figure 7 is a schematic structural diagram of a first cutting knife;

[0027] Figure 8 is a schematic diagram of the structure of the second cutting knife;

[0028] Fig. 9 is a schematic diagram of the structure of the first cutting knife and the second cutting knife on the cover plate;

[0029] Fig.10 is an enlarged view of the first blade body;

[0030] Fig.11 is an enlarged view of the second blade body;

[0031] In the figure: 1, base; 11, housing; 111, cutting groove; 2, floor scrubber body; 21, roller brush; 3, hair cutting mechanism; 31, fixed bottom plate; 311, first limit guide rail; 312, second limit guide rail; 32, rotating drive member; 33, driving gear; 34, first cutting knife; 341, first rack; 342, first meshing tooth; 343, first blade connecting member; 344, first blade hook; 345, first blade body; 346, The first sliding limit slider; 347, the blade interactive limit slider; 35, the second cutting knife; 351, the second rack; 352, the second meshing tooth; 353, the second blade connecting piece; 354, the second blade hook; 355, the second blade body; 356, the second sliding limit slider; 357, the blade interactive limit slide rail; 36, the cover plate; 361, the middle limit column; 37, the propulsion assembly; 371, the propulsion plate; 372, the propulsion elastic member; 38, the micro switch. DETAILED DESCRIPTION

[0032] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0033] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "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 the present invention 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 the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Please refer to Figures 1 to 11 The embodiment of the utility model provides a hair cutting device for a floor scrubber, comprising a base 1 and a floor scrubber body 2 detachably mounted on the base 1, the floor scrubber body 2 being provided with a roller brush 21, the base 1 comprising a hair cutting mechanism 3 which is located opposite to the roller brush 21, the hair cutting mechanism 3 comprising a fixed base plate 31 arranged in the base 1, a rotating driving member 32 arranged at the lower end of the middle of the fixed base plate 31 and having an output shaft extending through the upper end of the fixed base plate 31, a driving gear 33 arranged on the output shaft of the rotating driving member 32, a first cutting knife 34 meshed with the driving gear 33 at one end, and a second cutting knife 35 meshed with the driving gear 33 at the middle and operating in the opposite direction to the first cutting knife 34.

[0037] After cleaning the floor, the floor scrubber body 2 is placed in the base 1. At this time, the roller brush 21 on the floor scrubber body 2 is facing the hair cutting mechanism 3. The rotating drive member 32 is started, driving the driving gear 33 arranged on its output shaft to rotate repeatedly, and the first cutting knife 34 and the second cutting knife 35 meshed with the driving gear 33 are driven to slide horizontally and staggered. The first cutting knife 34 and the second cutting knife 35 extend into the fluff of the roller brush 21 and cut off the hair entangled in the fluff of the roller brush 21 through staggered sliding, so that the hair is easy to clean, effectively ensuring the service life of the roller brush 21, and facilitating the subsequent cleaning work of the roller brush 21. The whole process is simple and convenient, saving time and effort.

[0038] By setting the second cutting knife 35 to have a structure with an operation direction opposite to that of the first cutting knife 34, when the first cutting knife 34 is driven by the driving gear 33 to cut to the left, the second cutting knife 35 is synchronously driven by the driving gear 33 to cut to the right; when the first cutting knife 34 is driven by the driving gear 33 to cut to the right, the second cutting knife 35 is synchronously driven by the driving gear 33 to cut to the left, thereby achieving the purpose of staggered cutting of hair, making the device more efficient in cutting hair and easier to cut hair.

[0039] As for the specific structural setting of the rotating driving member 32, the rotating driving member 32 is a reversible motor, which can realize forward rotation and reverse rotation and perform them alternately, thereby driving the first cutting knife 34 and the second cutting knife 35 to move repeatedly, making it easier for the first cutting knife 34 and the second cutting knife 35 to cut the hair on the roller brush 21, thereby improving the cutting efficiency of the device.

[0040] Preferably, Figures 3 to 6 As shown, the first cutting knife 34 and the second cutting knife 35 are arranged up and down in sequence and meshed on the driving gear 33, the first cutting knife 34 slides on the fixed bottom plate 31, and the second cutting knife 35 slides on the first cutting knife 34. The first cutting knife 34 and the second cutting knife 35 are not on the same horizontal plane, thereby effectively preventing the first cutting knife 34 and the second cutting knife 35 from colliding with each other during operation and causing the problem of not being able to operate normally. The first cutting knife 34 can also be set on the second cutting knife 35, and its upper and lower positions can be selected according to actual conditions, so no specific restrictions are made in this embodiment.

[0041] The specific structure of the first cutting blade 34 is as follows: Figures 3 to 10As shown, the first cutting knife 34 includes a first rack 341, a first meshing tooth 342 formed at one end of the first rack 341 facing the driving gear 33 and meshing with one side of the driving gear 33, a first blade connecting member 343 formed on the left side of the front end of the first rack 341 and in an L-shape as a whole, a first blade hook 344 formed on the outermost side of the first blade connecting member 343 and bent in the opposite direction, and a first blade body 345 embedded in the first blade hook 344 and not extending out of the first blade hook 344.

[0042] The first meshing teeth 342 mesh with the driving gear 33, so that the driving gear 33 can drive the first rack 341 and the first blade connector 343 connected to the first rack 341, the first blade hook 344 and the first blade body 345 to slide horizontally, so that the first blade body 345 in the first blade hook 344 cuts off the hair entangled in the fluff of the roller brush 21, making the hair easy to clean, effectively ensuring the service life of the roller brush 21, and facilitating the subsequent cleaning of the roller brush 21. By setting the first blade body 345 to be embedded in the first blade hook 344 and not extending out of the first blade hook 344, and the first blade body 345 is relatively small as a whole, it is not easy for a person to touch the first blade body 345 when touching the device, thereby effectively ensuring the safety of the device and avoiding safety problems.

[0043] Preferably, Figure 7 and Fig.10 As shown, the first blade body 345 is transversely disposed in the first blade hook 344, so that the first blade body 345 can better cut the hair.

[0044] Regarding the specific structural arrangement of the second cutting blade 35, as shown in FIG. Figures 3 to 6 , Figure 8 as well as Fig.11 As shown, the second cutting knife 35 includes a second rack 351, a second meshing tooth 352 formed inside the second rack 351 and meshing with the other side of the driving gear 33, a second blade connecting member 353 formed on the right side of the front end of the second rack 351 and in an L-shape as a whole, a second blade hook 354 formed at the outermost front reverse bend of the first blade connecting member 343, and a second blade body 355 embedded in the second blade hook 354 and not extending out of the second blade hook 354.

[0045] The second meshing teeth 352 mesh with the driving gear 33, so that the driving gear 33 can drive the second rack 351 and the second blade connector 353 connected to the second rack 351, the second blade hook 354 and the second blade body 355 to slide horizontally, so that the second blade body 355 in the second blade hook 354 cuts off the hair entangled in the fluff of the roller brush 21, making the hair easy to clean, effectively ensuring the service life of the roller brush 21, and facilitating the subsequent cleaning of the roller brush 21. By setting the second blade body 355 to be embedded in the second blade hook 354 and not extending from the second blade hook 354, and the second blade body 355 is relatively small as a whole, it is not easy for a person to touch the second blade body 355 when touching the device, thereby effectively ensuring the safety of the device and avoiding safety problems.

[0046] Preferably, Figure 8 and Fig.11 As shown, the second blade body 355 is transversely disposed in the second blade hook 354, so that the second blade body 355 can cut the hair better.

[0047] In order to prevent the first cutting blade 34 from shifting or disengaging when being driven by the driving gear 33 to slide laterally, Figures 4 to 7 As shown, a first limiting guide rail 311 is formed on the fixed bottom plate 31 at a position corresponding to the first rack 341, and a first sliding limiting slide bar 346 is protruded downward from the lower end of the first rack 341 and slides in the first limiting guide rail 311. When the first rack 341 is driven by the driving gear 33 to rotate, the first sliding limiting slide bar 346 of the first rack 341 slides in the first limiting guide rail 311. Under the guiding action of the first limiting guide rail 311 and the first sliding limiting slide bar 346, the sliding stroke of the first rack 341 is limited, thereby effectively preventing the first cutting knife 34 from shifting or disengaging when being driven by the driving gear 33 to slide horizontally, and further improving the cutting efficiency of the device.

[0048] In order to prevent the second cutting blade 35 from shifting or disengaging when being driven by the driving gear 33 to slide laterally, Figures 4 to 6 , Figure 8 as well as Fig.11As shown, a second limiting guide rail 312 is formed on the fixed bottom plate 31 at a position corresponding to the second rack 351, and a second sliding limiting slider 356 is protruded downward from the lower end of the second rack 351 and slides in the second limiting guide rail 312. When the second rack 351 is driven by the driving gear 33 to rotate, the second sliding limiting slider 356 of the second rack 351 slides in the second limiting guide rail 312. Under the guiding action of the second limiting guide rail 312 and the second sliding limiting slider 356, the sliding stroke of the second rack 351 is limited, thereby effectively preventing the second cutting knife 35 from shifting or disengaging when being driven by the driving gear 33 to slide horizontally, and further improving the cutting efficiency of the device.

[0049] In order to prevent the second cutting blade 35 from shifting or disengaging during the lateral sliding process, Figures 4 to 8 As shown, a blade interaction limit strip 347 protruding upward is formed on the first rack 341, and a blade interaction limit slide rail 357 sliding on the blade interaction limit strip 347 is formed at the lower part of the second rack 351. When the first cutting knife 34 and the second cutting knife 35 are driven by the driving gear 33 to slide laterally, the blade interaction limit slide rail 357 on the second rack 351 slides on the blade interaction limit strip 347, and the blade interaction limit strip 347 and the blade interaction limit slide rail 357 cooperate with each other to further limit the sliding stroke of the second cutting knife 35, thereby effectively preventing the second cutting knife 35 from shifting or disengaging when being driven by the driving gear 33 to slide laterally, thereby further improving the cutting efficiency of the present device.

[0050] In order to further improve the safety of this device, Figure 3 and Figure 6 as well as Fig. 9 As shown, the hair cutting mechanism 3 further includes a cover plate 36 covering the fixed base plate 31, and a push assembly 37 respectively arranged on both sides of the fixed base plate 31 and pressed against the inner wall of the cover plate 36, the push assembly 37 including a push plate 371 formed on the side of the fixed base plate 31 and extending radially outward, and a push elastic member 372 with one end pressed against the push plate 371 and the other end pressed against the inner wall of the cover plate 36. By arranging the push assemblies on both sides, the first cutting blade 34 and the second cutting blade 35 are always in contact with each other under the action of the push assemblies 37 on both sides, and are respectively closely meshed with the driving gear 33, so as to achieve the action of being driven to extend and retract forward and backward.

[0051] The cover plate 36 covers the fixed bottom plate 31, thereby wrapping the first cutting knife 34, the second cutting knife 35, the propulsion assembly 37 and the like on the fixed bottom plate 31, so as to achieve the purpose of protecting the first cutting knife 34, the second cutting knife 35, the propulsion assembly 37 and the like structures.

[0052] Preferably, Figures 4 to 6 As shown, the propulsion elastic member 372 is a spring, which has good durability, low price, high fatigue resistance, and stable elastic potential energy. While effectively providing elastic power to the propulsion component 37, it reduces the production cost of the device.

[0053] When the floor scrubber body 2 is placed in the base 1, the roller brush 21 thereon first pushes the first cutting blade 34 and the second cutting blade 35 to move into the base 1, so that the fixed base plate 31, the rotating driving member 32, the driving gear 33 and other structures connected to the first cutting blade 34 and the second cutting blade 35 move inward synchronously, so that the pushing plate 371 on the fixed base plate 31 moves inward and presses the pushing elastic member 372, and the pushing elastic member 372 is squeezed and deformed. After the floor scrubber body 2 is completely placed in the base 1 and installed accordingly, the roller brush 21 on the floor scrubber moves backward to the correct position in the base 1, and the first cutting blade 34 and the second cutting blade 35 are moved inward synchronously. The blade 34 and the second cutting blade 35 lose the pressing force of the roller brush 21, and the advancing elastic member 372 pushes the advancing plate 371 toward the roller brush 21 under its own elastic restoring force, so that the fixed bottom plate 31 drives the rotating driving member 32, the driving gear 33, the first cutting blade 34, the second cutting blade 35, etc. thereon to advance toward the roller brush 21, so that the first cutting blade 34 and the second cutting blade 35 extend into the fluff of the roller brush 21 to slide alternately, and cut the hair entangled on the fluff of the roller brush 21, so that the hair is easy to clean, effectively ensuring the service life of the roller brush 21, and facilitating the subsequent cleaning work of the roller brush 21. The whole process is simple and convenient, saving time and effort.

[0054] The specific method of extending the first cutting blade 34 and the second cutting blade 35 into the roller brush 21 is as follows: Figure 2 As shown, the base 1 further includes a housing 11 for the floor scrubber body 2 to be placed in, and a cutting groove 111 for the first cutting knife 34 and the second cutting knife 35 to extend and slide is provided at one end of the housing 11 facing the roller brush 21. Under the elastic force of the propulsion elastic member 372, the first cutting knife 34 and the second cutting knife 35 extend out of the housing 11 through the cutting groove 111 and extend into the fluff of the roller brush 21 to cut the hair entangled on the fluff.

[0055] In order to further prevent the first cutting blade 34 and the second cutting blade 35 from moving excessively, Fig. 9As shown, a middle limiting column 361 is formed in the middle of the lower end surface of the cover plate 36. After the first cutting knife 34 slides to the left and is in place, its second blade connecting member 353 is hooked on the lower end of the middle limiting column 361. At the same time, after the second cutting knife 35 slides to the right and is in place, its second blade connecting member 353 is hooked on the upper end of the middle limiting column 361, thereby achieving the purpose of further limiting the sliding stroke of the first cutting knife 34 and the second cutting knife 35, so that the first cutting knife 34 and the second cutting knife 35 can cut hair more accurately and efficiently.

[0056] The specific method for the rotation driving member 32 to realize reverse rotation is as follows: Figures 4 to 6 As shown, the hair cutting mechanism 3 further includes a micro switch 38 disposed on one side of the fixed base plate 31 and facing the second cutting knife 35. When the second cutting knife 35 is driven by the driving gear 33 to slide to the corresponding side of the fixed base plate 31, the side wall of the second rack 351 of the second cutting knife 35 presses against the raised metal contact handle of the micro switch 38, so that the metal contact handle contacts the lower end, and the micro switch 38 is closed. The micro switch 38 transmits a signal to the integrated circuit in the base 1, and the integrated circuit controls the rotating driving member 32 to rotate in the opposite direction, thereby achieving the purpose of repeated alternating sliding of the first cutting knife 34 and the second cutting knife 35.

[0057] It should be noted that the hair cutting device for a floor scrubber disclosed in the utility model is an improvement on a specific structure, and the specific control method is not the innovation point of the utility model. The springs, motors, blades, floor scrubbers, roller brushes, micro switches and other components involved in the utility model can be general standard parts or components known to those skilled in the art, and their structures, principles and control methods are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, other structures obtained by adopting the same or similar technical features as the above embodiments of the present invention are within the protection scope of the present invention.

Claims

1. A hair cutting device for a floor scrubber, comprising a base and a floor scrubber body detachably mounted on the base, wherein a roller brush is disposed on the floor scrubber body, and characterized in that: The base includes a hair cutting mechanism that is directly opposite to the roller brush position, and the hair cutting mechanism includes a fixed base plate arranged in the base, a rotating driving member arranged at the lower end of the middle part of the fixed base plate and whose output shaft extends through the upper end of the fixed base plate, a driving gear arranged on the output shaft of the rotating driving member, a first cutting knife with one end meshed with the driving gear, and a second cutting knife meshed with the driving gear in the middle and operating in the opposite direction to the first cutting knife.

2. The hair cutting device for a floor scrubber according to claim 1, characterized in that: The first cutting knife includes a first rack, a first meshing tooth formed at one end of the first rack facing the driving gear and meshing with one side of the driving gear, a first blade connecting member formed on the left side of the front end of the first rack and having an L-shape as a whole, a first blade hook formed at the outermost side of the first blade connecting member and bent in the opposite direction, and a first blade body embedded in the first blade hook and not extending out of the first blade hook.

3. The hair cutting device for a floor scrubber according to claim 2, characterized in that: The second cutting knife includes a second rack, a second meshing tooth formed inside the second rack and meshing with the other side of the driving gear, a second blade connecting member formed on the right side of the front end of the second rack and L-shaped as a whole, a second blade hook formed on the outermost front side of the first blade connecting member and bent in the reverse direction, and a second blade body embedded in the second blade hook and not extending out of the second blade hook.

4. The hair cutting device for a floor scrubber according to claim 1, characterized in that: The first cutting knife and the second cutting knife are arranged in sequence up and down and meshed with the driving gear, and the first cutting knife and the second cutting knife are not on the same horizontal plane.

5. The hair cutting device for a floor scrubber according to claim 3, characterized in that: A first position-limiting guide rail is formed on the fixed bottom plate at a position corresponding to the first rack, and a first sliding position-limiting slide bar is protruded downward from the lower end of the first rack and slides in the first position-limiting guide rail.

6. The hair cutting device for a floor scrubber according to claim 3, characterized in that: A second position-limiting guide rail is formed on the fixed bottom plate at a position corresponding to the second rack, and a second sliding position-limiting slide bar is protruded downward from the lower end of the second rack and slides in the second position-limiting guide rail.

7. The hair cutting device for a floor scrubber according to claim 3, characterized in that: A blade interaction limiting strip protruding upward is formed on the first rack, and a blade interaction limiting slide rail sliding on the blade interaction limiting strip is formed at the lower part of the second rack.

8. The hair cutting device for a floor scrubber according to claim 1, characterized in that: The hair cutting mechanism further comprises a cover plate covering the fixed base plate, and a propulsion assembly respectively arranged on both sides of the fixed base plate and pressed against the inner wall of the cover plate, wherein the propulsion assembly comprises a propulsion plate formed on the side edge of the fixed base plate and extending radially outward, and a propulsion elastic member having one end pressed against the propulsion plate and the other end pressed against the inner wall of the cover plate.

9. The hair cutting device for a floor scrubber according to claim 3, characterized in that: The base also includes a shell for the floor scrubber body to be placed in, and a cutting groove for the first cutting knife and the second cutting knife to extend and slide is formed at one end of the shell facing the roller brush.

10. The hair cutting device for a floor scrubber according to claim 1, characterized in that: The hair cutting mechanism further comprises a micro switch arranged on one side of the fixed base plate and facing the second cutting knife. The second cutting knife slides to the side of the fixed base plate to press and close the micro switch.

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