Hair breaking device, hair breaking control method and floor drain

Abstract

The invention discloses a hair breaking device, a hair breaking control method and a floor drain, the hair breaking device comprises a shell, a rotatable hair collecting structure is arranged in the shell, and a drainage channel is formed by a gap between the hair collecting structure and the shell; the hair cutting device further comprises a hair cutting structure, a part of the hair cutting structure is located in the hair collecting channel and used for cutting hair collected by the hair collecting structure, and the cut hair is discharged through the drainage channel. During use, the hair curling structure rotates to actively wind the hair flowing through the drainage channel, so that the hair collecting efficiency is improved, the situation that the hair which is not sheared is discharged along with sewage is reduced, and the possibility that the drainage channel is blocked is reduced; meanwhile, the hair collected by the hair curling structure is cut through the hair breaking structure, the cut hair is short and can be discharged out of the drainage channel along with water flow, and excessive hair is prevented from being accumulated on the hair curling structure.

Description

Technical Field

[0001] The present invention relates to the technical field of floor drains, and in particular to a hair cutting device and a floor drain. Background Art

[0002] In order to avoid the problem of hair accumulation due to long-term use, which may cause the floor drain to slow down or even become blocked, there are already floor drains with hair-cutting functions on the market, which usually use a series of complex mechanical devices to achieve hair collection and cutting, and there are also the following problems:

[0003] Common floor drains use water flow to flush the hair to the hair collection position, and then cut the hair off. However, this hair collection method is passive and lacks active collection function. The collection efficiency is low. The hair that has not been cut off may be discharged with the sewage, causing local blockage in the sewage pipe.

[0004] The above problems undoubtedly reduce the user experience and reduce the performance and convenience of floor drain products. Summary of the invention

[0005] The present invention provides a hair cutting device, a hair cutting control method and a floor drain, so that the floor drain has an active hair collecting function, improves the hair collecting efficiency, and further reduces the discharge of hair that has not been sheared.

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

[0007] A hair cutting device comprises a shell, a rotatable hair collecting structure is arranged in the shell, and the gap between the hair collecting structure and the shell constitutes a drainage channel; and also comprises a hair cutting structure, part of which is located in the hair collecting channel and is used to cut the hair collected by the hair collecting structure, and the cut hair is discharged from the drainage channel.

[0008] Furthermore, the hair collecting structure includes a hair curling body, and the hair cutting structure includes a hair cutting body. The hair cutting body abuts against the hair curling body. The driving force drives the hair curling body to rotate and drives the hair cutting body to reciprocate along the axial direction of the hair curling body to cut the hair on the surface of the hair curling body.

[0009] Furthermore, the curling body and the hair cutting body are transmission-connected to the driving device, and the force output by the driving device constitutes the driving force; it also includes a controller, which is electrically connected to the driving device to provide power for the driving device; the controller is also connected to a water flow switch, which controls the opening and closing of the driving device based on the flow of water.

[0010] Furthermore, the hair curling body is provided with a hair curling surface with a gradually increasing cross-sectional area along the water outlet direction, and the hair cutting body abuts against the hair curling surface.

[0011] Further, a first connection position is provided at the bottom of the curly hair body. The first connection position is coaxially arranged with the rotation axis of the curly hair body. A second connection position is provided at the bottom of the housing. The first connection position and the second connection position are mutually concave-convex and rotatably connected.

[0012] Further, a plurality of hair blocking strips extending radially towards the curly hair body are provided on the inner wall of the housing. The hair blocking strips are spaced apart from each other to form a hair blocking net. A guiding surface for guiding the hair to the curly hair surface is provided on the end surface of each hair blocking strip facing the water inlet direction.

[0013] Further, the hair blocking nets are arranged at intervals along the water outlet direction of the drainage channel, and the hair blocking strips of the two hair blocking nets are arranged in a staggered manner.

[0014] Further, a rotating shaft is threadedly connected to the hair cutting body. The rotating shaft is drivingly connected to the driving device. The hair cutting body is circumferentially limited and connected to the housing. By changing the output direction of the driving device, the rotation direction of the rotating shaft is changed, and then the hair cutting body is driven to reciprocate axially along the axis of the rotating shaft.

[0015] Further, the hair cutting body includes a tool rest. The tool rest is threadedly and adaptively connected to the rotating shaft. The tool rest is provided with a rotatable cutting structure, and a part of the cutting structure abuts against the curly hair surface.

[0016] Further, a sliding groove is provided on the inner wall of the housing. An opening is provided on one side of the sliding groove away from the wall surface of the housing. The hair cutting body is arranged in the sliding groove. The tool rest and the wall surface of the sliding groove form a circumferential rotation restriction, and the cutting structure extends out through the opening and abuts against the curly hair surface.

[0017] Further, the cutting structure is a moving blade with one end rotatably connected to the tool rest and the other end abutting against the curly hair surface; or, the cutting structure includes a fixed blade and a moving blade that are mutually shearing and cooperating. The fixed blade is fixedly connected to the tool rest, one end of the moving blade is rotatably connected to the tool rest, and the other end of the moving blade abuts against the curly hair surface.

[0018] Further, a flip cover for controlling the opening and closing of the drainage channel is also hinged to the housing.

[0019] A hair breaking control method, applicable to the hair breaking device as described above, includes the following steps:

[0020] S1. When the water flow switch senses the water flow, the control device starts the driving device to drive the curly hair body and the hair cutting body;

[0021] S2. When the water flow stops and the water flow switch does not sense the water flow, the control device controls the driving device to continue running for a time T and then closes.

[0022] A floor drain comprises a surface cover and a bottom cover, the surface cover and the bottom cover are connected to each other, and the gap between the surface cover and the bottom cover constitutes a flow channel, and also comprises the hair-breaking device as described above, the shell is penetrated through the bottom cover, the flow channel is connected to the drainage channel, the controller is arranged on the surface cover, and the water flow switch is used to monitor the flow of water in the flow channel to open and close the first drive device and the second drive device.

[0023] The beneficial effects of the present invention are:

[0024] 1. A hair cutting device proposed by the present invention includes a shell, a rotatable hair collecting structure is arranged in the shell, and the gap between the hair collecting structure and the shell constitutes a drainage channel; it also includes a hair cutting structure, part of which is located in the hair collecting channel, and is used to cut the hair collected by the hair collecting structure, and the cut hair is discharged from the drainage channel. When in use, the curling structure rotates to actively roll up the hair flowing through the drainage channel, thereby improving the hair collecting efficiency, reducing the hair that has not been cut and is discharged with the sewage, and reducing the possibility of blockage of the sewer channel; at the same time, the hair collected by the curling structure is cut by the hair cutting structure, and the cut hair is shorter in length and can be discharged from the drainage channel with the water flow, thereby avoiding excessive accumulation of hair on the curling structure.

[0025] 2. A hair cutting device proposed by the present invention comprises a hair collecting structure including a hair curling body, a hair cutting structure including a hair cutting body, the hair cutting body abutting against the hair curling body, a driving force drives the hair curling body to rotate, and drives the hair cutting body to reciprocate along the axial direction of the hair curling body, so as to reciprocate and shear the hair on the surface of the hair curling body, thereby improving the shearing effect; at the same time, the driving force can be the force generated by a driving device such as a motor, or the water flow impact force generated by the flow of water.

[0026] 3. A hair cutting device proposed by the present invention, wherein a hair curling body and a hair cutting body are transmission-connected to a driving device, the force output by the driving device constitutes a driving force, a controller is electrically connected to the driving device, and the controller is also connected to a water flow switch, which controls the opening and closing of the driving device based on the flow of water, thereby realizing automatic start and stop of a hair collecting structure and a hair cutting structure, and improving user experience.

[0027] 4. In a hair cutting device proposed by the present invention, a curling body is provided with a curling surface with a gradually increasing cross-sectional area along the water outlet direction, so that hair is more easily wrapped around the curling body, thereby improving the hair collecting efficiency.

[0028] 5. In a hair cutting device proposed by the present invention, the curling body is rotatably connected to the housing through the concave-convex part between the first connecting position and the second connecting position, thereby reducing the shaking generated when the curling body rotates and maintaining the stable operation of the curling body.

[0029] 6. A hair cutting device proposed by the present invention, wherein a plurality of hair blocking strips are provided on the inner wall of the housing, and a guiding surface for guiding the hair to the curling surface is provided on the end surface of each hair blocking strip facing the water inlet direction, further improving the hair collection efficiency.

[0030] 7. A hair cutting device proposed by the present invention, wherein the hair blocking nets are arranged at intervals along the water outlet direction of the drainage channel, so as to guide more hair to the curling surface. At the same time, the hair blocking strips between the two hair blocking nets are arranged staggeredly with each other, which not only improves the range of hair interception, but also does not affect the discharge of sewage.

[0031] 8. A hair cutting device proposed by the present invention, wherein the hair cutting body is circumferentially limited and connected to the housing to prevent the hair cutting body from rotating together with the rotating shaft, ensuring that by changing the rotation direction of the rotating shaft, the hair cutting body can be driven to reciprocate axially along the rotating shaft to reciprocally cut the hair on the curling surface.

[0032] 9. A hair cutting control method proposed by the present invention, applicable to the hair cutting device as described above. After the water flow stops flowing, the control device controls the driving device to continue running for a time T and then closes, reducing the residual amount of uncut hair on the curling structure and reducing the impact on the next hair collection and cutting.

[0033] 10. A floor drain proposed by the present invention, including a face cover and a bottom cover, and the controller is installed on the face cover, which is convenient for users to remove the controller for charging, maintenance or replacement, and the maintenance cost is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0035] Figure 1 is an exploded view of a hair cutting device of the present invention;

[0036] Figure 2 corresponding to Figure 1 is a cross-sectional view in a state;

[0037] Figure 3 is a cross-sectional view of a hair cutting device of the present invention;

[0038] Figure 4 is a cross-sectional view of a curling body of a hair cutting device of the present invention;

[0039] Figure 5 is a sectional view of an inner shell of a hair cutting device of the present invention;

[0040] Figure 6 A cross-sectional view of the housing of a hair cutting device according to the present invention;

[0041] Figure 7 A schematic diagram of the hair cutting body of a hair cutting device according to the present invention;

[0042] Figure 8 A schematic diagram of a floor drain according to the present invention;

[0043] Figure 9 corresponding to Figure 8 cross-sectional view;

[0044] Figure 10 An exploded view of a floor drain according to the present invention;

[0045] Figure 11 corresponding to Figure 10 cross-sectional view;

[0046] Figure 12 A schematic diagram of the water flow path of a floor drain according to the present invention;

[0047] In the figure, 10, housing; 20, inner housing; 201, chute; 30, hair collection structure; 301, curly hair body; 3011, curly hair surface; 302, first driving device; 40, hair cutting structure; 401, rotating shaft; 402, hair cutting body; 4021, knife rest; 4022, shearing structure; 403, second driving device; 50, hair blocking strip; 501, guiding surface; 60, controller; 70, water flow switch; 80, drainage channel; 901, first connection position; 902, second connection position; 100, flip cover; 1001, covering part; 1002, counterweight part; 110, face cover; 120, bottom cover; 130, overflow channel. Detailed implementation manners

[0048] Embodiment 1

[0049] The following will Figures 1-7 describe the present invention in detail.

[0050] A hair cutting device includes a housing. A rotatable hair collection structure 30 is provided inside the housing. The gap between the hair collection structure 30 and the housing forms a drainage channel 80. It further includes a hair cutting structure 40. Part of the hair cutting structure 40 is located in the hair collection channel and is used to cut the hair collected by the hair collection structure 30. The cut hair is discharged through the drainage channel 80. During use, the curly hair structure rotates to actively wind the hair flowing through the drainage channel 80, improving the hair collection efficiency, reducing the uncut hair discharged with the sewage, and reducing the possibility of blockage in the sewer channel. At the same time, the hair cutting structure 40 cuts the hair collected by the curly hair structure. The length of the cut hair is relatively short and can be discharged with the water flow through the drainage channel 80, avoiding excessive hair accumulation on the curly hair structure.

[0051] The hair collecting structure 30 includes a hair curling body 301, and the hair cutting structure 40 includes a hair cutting body 402. The hair cutting body 402 is in contact with the hair curling body 301. The driving force drives the hair curling body 301 to rotate and drives the hair cutting body 402 to reciprocate along the axial direction of the hair curling body 301, so as to reciprocate and shear the hair on the surface of the hair curling body, thereby improving the shearing effect. At the same time, the driving force can be the force generated by a driving device such as a motor, or the water flow impact force generated by the flow of water.

[0052] The hair curling body 301 and the hair cutting body are connected to the driving device through transmission, and the force output by the driving device constitutes the driving force; further, the driving device includes a first driving device 302 and a second driving device 403, the first driving device 302 is connected to the hair curling body 301 through transmission, and the second driving device 403 is connected to the second driving device 403 through transmission; in other embodiments, the hair curling body 301 and the hair cutting body are connected to the same driving device through transmission. It also includes a controller 60, which is electrically connected to the driving device to provide power for the driving device; the controller 60 is also connected to a water flow switch 70, which controls the opening and closing of the driving device based on the flow of water, thereby realizing the automatic start and stop of the hair collecting structure 30 and the hair cutting structure 40, and improving the user experience. Specifically, when the water flow switch 70 senses the flow of water, it turns on the first drive device 302 and the second drive device 403. When the water flow switch 70 does not sense the flow of water, it immediately turns off the first drive device 302 and the second drive device 403 or turns off the first drive device 302 and the second drive device 403 after a certain delay, thereby realizing the automatic start and stop of the hair collecting structure 30 and the hair cutting structure 40, and improving the user experience. Among them, the first drive device 302 is a first motor that rotates in one direction or two directions, and the second drive device 403 is a second motor that rotates in two directions. The one-way rotation means that the output end rotates clockwise or counterclockwise, and the two-way rotation means that the output end can rotate clockwise and counterclockwise respectively. The controller 60 is preset with a control program, which is at least used to control the one-way rotation of the first drive device 302 and the two-way rotation of the second drive device 403.

[0053] In this embodiment, Figure 4As shown, the curly hair body 301 is provided with a curly hair surface 3011 with a gradually increasing cross-sectional area along the water outlet direction, making it easier for hair to wind around the curly hair body 301 and improving the hair collection efficiency. At the same time, the hair cutting body 402 abuts against the curly hair surface 3011. The bottom of the curly hair body 301 is provided with a first connection position 901, and the first connection position 901 is coaxially arranged with the rotation axis 401 line of the curly hair body 301. The bottom of the housing is provided with a second connection position 902. The first connection position 901 and the second connection position 902 are mutually concave-convex and rotatably connected, reducing the shaking generated when the curly hair body 301 rotates and keeping the curly hair body 301 running stably. Specifically, the first connection position 901 is a groove, the second connection position 902 is a convex part, and a bearing is provided between the first connection position 901 and the second connection position 902 to reduce the friction and noise when the curly hair body 301 rotates.

[0054] As Figure 5 shown, the inner wall of the housing is provided with a number of hair blocking strips 50 extending radially towards the curly hair body 301. The hair blocking strips 50 are spaced apart from each other to form a hair blocking net. The end surface of each hair blocking strip 50 facing the water inlet direction is provided with a guiding surface 501 for guiding hair to the curly hair surface 3011, further improving the hair collection efficiency. Further, the hair blocking nets are spaced apart along the water outlet direction of the drainage channel 80, so as to guide more hair to the curly hair surface 3011. The hair blocking strips 50 between the two hair blocking nets are arranged in a staggered manner, which not only improves the range of hair interception but also does not affect the discharge of sewage.

[0055] In this embodiment, as Figure 3 shown, the output end of the second driving device 403 is connected with a rotating shaft 401, and the hair cutting body 402 is threadedly connected to the rotating shaft 401. The hair cutting body 402 is circumferentially limited and connected to the housing. By changing the rotation direction of the rotating shaft 401 through the second driving device 403, the hair cutting body 402 is driven to reciprocate along the axial direction of the rotating shaft 401.

[0056] In this embodiment, as Figure 7 described, the hair cutting body 402 includes a tool holder 4021. The tool holder 4021 is threadedly and adaptively connected to the rotating shaft 401. The tool holder 4021 is provided with a rotatable cutting structure 4022, and a part of the cutting structure 4022 abuts against the curly hair surface 3011. Further, the inner wall of the housing is provided with a sliding groove 201. One side of the sliding groove 201 away from the wall surface of the housing is provided with an opening. The hair cutting body 402 is arranged in the sliding groove 201. The tool holder 4021 and the wall surface of the sliding groove 201 form a circumferential rotation limit, and the cutting structure 4022 extends out from the opening and abuts against the curly hair surface 3011.

[0057] In this embodiment, the shearing structure 4022 is a moving blade with one end rotatably connected to the tool rest 4021 and the other end abutted against the curling surface 3011. During use, the output end of the second driving device 403 rotates in the first direction. Based on the screw transmission relationship, the tool rest 4021 is driven to move downward. One end of the blade abuts against the curling surface 3011, thereby shearing the hair wound around the curling surface 3011, and the blade rotates clockwise; the output end of the second driving device 403 rotates in the second direction, driving the tool rest 4021 to move upward. One end of the blade abuts against the curling surface 3011, and the blade rotates counterclockwise. Among them, one of the first direction and the second direction is clockwise rotation, and the other is counterclockwise rotation.

[0058] In other embodiments, the shearing structure 4022 includes a fixed blade and a moving blade that cooperate with each other in shearing. The fixed blade is fixedly connected to the tool rest 4021. One end of the moving blade is rotatably connected to the tool rest 4021, and the other end of the moving blade abuts against the curling surface 3011. The difference in the shearing principle from the foregoing is that in addition to using the moving blade to shear the hair wound around the curling surface 3011, the change in the angle between the moving blade and the fixed blade due to the rotation of the moving blade can also be used to shear the hair.

[0059] In this embodiment, the first driving device 302 and the second driving device 403 can be opened and closed simultaneously, or can be opened and closed separately. When opened and closed separately, the operation duration and operation sequence of the first driving device 302 and the second driving device 403 are configured according to actual needs. The following are exemplary steps:

[0060] S1. The second driving device 403 rotates in the second direction and stops after bringing the hair cutting body 402 to the top position;

[0061] S2. The first driving device 302 drives the curling body 301 to rotate for a preset time and then stops;

[0062] S3. The rotation direction of the output end of the second driving device 403 is switched multiple times between the first direction and the second direction, driving the hair cutting body 402 to move up and down reciprocally, thereby cutting the hair, and then returning to the top position to wait. After waiting for the curling body 301 to rotate, reciprocating cutting is performed again.

[0063] As Figure 6 shown, the housing is also hinged with a flip cover 100 for controlling the opening and closing of the drainage channel 80. The flip cover 100 includes a covering portion 1001 and a counterweight portion 1002. The moment of the counterweight portion 1002 on the flip cover 100 is greater than the moment of the covering portion 1001 on the flip cover 100. When the sewage is discharged, the sewage impacts the covering portion 1001, and the moment acting on the flip cover 100 is greater than the moment of the counterweight portion 1002 on the flip cover 100. The flip cover 100 rotates, and the drainage channel 80 is opened; after the sewage discharge ends, the covering portion 1001 automatically covers the drainage channel 80 under the action of the counterweight, and the drainage channel 80 is closed.

[0064] In this embodiment, as Figures 1 to 3 shown, the housing includes an inner housing 20 and an outer housing 10 sleeved outside the inner housing 20. A hair blocking spring 50 is provided on the inner wall of the inner housing 20. The hair collecting and releasing structure 30 and the hair cutting structure 40 are installed inside the inner housing 20. The outer housing 10 is provided with a second connection position 902 and a flip cover 100 is hinged thereto.

[0065] Embodiment Two

[0066] This embodiment provides a hair cutting control method, which is applicable to the hair cutting device as described above, and includes the following steps:

[0067] S1. When the water flow switch senses the water flow, the control device starts the driving device to drive the hair curling body and the hair cutting body; the movement process of the driving device in step S1 has been described above and will not be elaborated here.

[0068] S2. When the water flow stops and the water flow switch does not sense the water flow, the control device controls the driving device to continue running for a time T and then closes.

[0069] After the water flow stops, the driving device continues to run for a time T, so that the hair cutting body closes after a delay of time T, thereby continuously cutting the hair on the hair curling body, reducing the remaining amount of the hair that has not been cut and processed on the hair curling structure, and reducing the influence on the next hair collection and hair cutting.

[0070] Embodiment Three

[0071] The following will Figures 8-12 describe the present invention in detail.

[0072] A floor drain includes a face cover 110 and a bottom cover 120. The face cover 110 and the bottom cover 120 are connected to each other, and the gap between the face cover 110 and the bottom cover 120 forms a water flow channel 130. It further includes the hair cutting device as described above. The housing penetrates through the bottom cover 120. The water flow channel 130 communicates with the drainage channel 80. The controller 60 is arranged on the face cover 110. The water flow switch 70 is used to monitor the water flow in the water flow channel 130 to open and close the first driving device 302 and the second driving device 403. Among them, arranging the controller 60 on the face cover 110 facilitates the user to remove the controller 60 for charging, maintenance or replacement, and the maintenance cost is relatively low.

[0073] The working principle of the floor drain provided in this embodiment is as follows:

[0074] As Figure 12As shown, the water flow passes through the flow channel 130, triggering the water flow switch 70. The controller 60 activates the first driving device 302 and the second driving device 403. The first driving device 302 and the second driving device 403 drive the hair curling body 301 and the shearing body respectively according to preset steps, thereby realizing the functions of hair collection and hair cutting. The flip cover 100 automatically opens under the impact of the water flow, and the hair after shearing treatment flows out together with the water flow. After the water flow discharge ends, the covering part 1001 automatically covers the drainage channel 80 under the action of the counterweight, and the drainage channel 80 is closed.

[0075] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it. However, it should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A hair cutting device, comprising a housing, characterized in that, A rotatable hair collection and distribution structure is provided inside the housing, and the gap between the hair collection and distribution structure and the housing forms a drainage channel. It further includes a hair cutting structure, and a partial position of the hair cutting structure is located in the hair collection channel for cutting the hair collected by the hair collection and distribution structure, and the cut hair is discharged through the drainage channel.

2. The hair cutting device according to claim 1, characterized in that, The hair collection and distribution structure includes a curly hair body, and the hair cutting structure includes a hair cutting body. The hair cutting body abuts against the curly hair body. A driving force drives the curly hair body to rotate self - sufficiently and drives the hair cutting body to reciprocate axially along the curly hair body to cut the hair on the surface of the curly hair body.

3. The hair cutting device according to claim 2, wherein The curly hair body and the hair cutting body are drivingly connected to a driving device, and the acting force output by the driving device constitutes the driving force. It further includes a controller, which is electrically connected to the driving device to provide power for the driving device. The controller is also connected to a water flow switch, and the water flow switch controls the opening and closing of the driving device based on the water flow through the control device.

4. The hair cutting device according to claim 2, characterized in that, The curly hair body is provided with a curly hair surface with a gradually increasing cross - sectional area along the water outlet direction, and the hair cutting body abuts against the curly hair surface.

5. The hair-breaking device according to claim 2, wherein, A first connection position is provided at the bottom of the curly hair body, and the first connection position is coaxially arranged with the rotation axis of the curly hair body. A second connection position is provided at the bottom of the housing, and the first connection position and the second connection position are mutually concave - convex and rotatably connected.

6. The hair cutting device according to claim 2, characterized in that, A plurality of hair blocking strips extending radially towards the curly hair body are provided on the inner wall of the housing. The hair blocking strips are spaced apart from each other to form a hair blocking net. The end surfaces of the hair blocking strips facing the water inlet direction are provided with guide surfaces for guiding the hair to the curly hair surface.

7. The hair cutting device according to claim 6, wherein The hair blocking nets are arranged at intervals along the water outlet direction of the drainage channel, and the hair blocking strips of the two hair blocking nets are arranged in a staggered manner.

8. The hair-breaking device according to claim 2, wherein The hair cutting body is threadedly connected to a rotating shaft, and the rotating shaft is drivingly connected to the driving device. The hair cutting body is circumferentially limited and connected to the housing. By changing the output direction of the driving device, the rotation direction of the rotating shaft is changed, and then the hair cutting body is driven to reciprocate axially along the axis of the rotating shaft.

9. The hair-breaking device according to claim 8, characterized in that The hair cutting body includes a tool holder, the tool holder is threadedly and adaptively connected to the rotating shaft, and the tool holder is provided with a rotatable cutting structure, and a partial position of the cutting structure abuts against the curly hair surface.

10. A hair-breaking device according to claim 9, characterized in that, A sliding groove is provided on the inner wall of the housing. An opening is provided on one side of the sliding groove away from the wall surface of the housing. The hair cutting body is arranged in the sliding groove, and the tool holder and the wall surface of the sliding groove form a circumferential rotation limit, and the cutting structure extends out of the opening to abut against the curly hair surface.

11. The hair-breaking device according to claim 9, wherein, The cutting structure is a moving blade with one end rotatably connected to the tool holder and the other end abutting against the curly hair surface; or, the cutting structure includes a fixed blade and a moving blade that are mutually shearing and cooperating. The fixed blade is fixedly connected to the tool holder, one end of the moving blade is rotatably connected to the tool holder, and the other end of the moving blade abuts against the curly hair surface.

12. The hair-breaking device according to claim 1, wherein, The housing is also hinged with a flip cover for controlling the opening and closing of the drainage channel.

13. A hair breakage control method, applicable to the hair breakage device according to any one of claims 3-12, characterized in that, It includes the following steps: S1. When the water flow switch senses the water flow, the control device starts the driving device to drive the curly hair body and the hair cutting body; S2. When the water flow stops and the water flow switch does not sense the water flow, the control device controls the driving device to continue running for a time T and then turn off.

14. A floor drain, comprising a face cover and a bottom cover, the face cover and the bottom cover being connected to each other, and a gap between the face cover and the bottom cover forming a flow-through channel, characterized in that, It further includes a hair-breaking device according to any one of claims 3-12, the housing is disposed through the bottom cover, the overflow channel is communicated with the drainage channel, the controller is disposed on the face cover, and the water flow switch is used to monitor the water flow in the overflow channel to open and close the driving device.

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