Hair cutting mechanism

Abstract

The utility model relates to the technical field of dust collectors, and discloses a hair cutting mechanism which comprises a cutting knife and a sliding block, the sliding block is used for driving the cutting knife to do axial reciprocating motion, the other end of the sliding block is provided with an extrusion piece and a rotating block, one end of the rotating block is provided with an inclined groove and a rolling brush, and the inclined groove is used for pushing the extrusion piece. The outer wall of the rolling brush is provided with a cutting groove for the cutting knife to cut hair and an auxiliary knife; by means of the design of the cutting knife, the rolling brush, the rotating block and the sliding block, hair is swept through the rolling brush, the hair is wound on the outer wall of the rolling brush, along with rotation of the rolling brush, the output shaft of the reduction gearbox can drive the rotating block to synchronously rotate and extrude the sliding block, and the sliding block drives the cutting knife to axially reciprocate through the support. And the hair falling into the cutting groove is cut and shortened under the action of the cutting knife, and is absorbed by a dust collector in the sweeping robot, so that the winding of the hair on the outer wall of the rolling brush is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum cleaners, in particular to a hair cutting mechanism. Background Art

[0002] With the development of technology, the use of floor sweeping robots is becoming more and more widespread. When a floor sweeping robot is in use, it will sweep and absorb the garbage on the ground.

[0003] However, when the rotating brush is in use, the scattered hair will rotate with the rotating brush and tightly wind around the outer wall of the rotating brush. As more and more hair winds around, it will affect the continuous use of the rotating brush and cause the rotating brush to stop rotating. Therefore, after each cleaning by the floor sweeping robot, the rotating brush needs to be disassembled to remove the hair separately, making the use of the floor sweeping robot not very convenient. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a hair cutting mechanism, aiming to solve the problem in the prior art that the outer wall of the rotating brush winds with hair and is not convenient to clean.

[0005] To achieve the above-mentioned utility model purpose, the first aspect of the utility model provides a hair cutting mechanism, including:

[0006] A cutting knife, which is used for cutting hair;

[0007] A sliding block, which is used to drive the cutting knife to perform axial reciprocating motion. One end of the sliding block is provided with a bracket for connecting with the cutting knife, and the other end of the sliding block is provided with an extrusion member for driving the sliding block to move;

[0008] A rotating block, which is used to drive the axial movement of the sliding block. One end of the rotating block is provided with an inclined groove for pushing the extrusion member;

[0009] A rotating brush, on the outer wall of which there is a cutting groove for the cutting knife to cut hair;

[0010] An auxiliary knife, which is used to cooperate with the cutting knife to cut hair.

[0011] Further, the cutting knife is arranged in the middle of the rotating brush. There is an installation cavity inside the rotating brush, and a cutting groove for the cutting knife to cut hair is arranged on the outer wall of the rotating brush.

[0012] Further, the cutting knife is fixedly connected with the bracket. One end of the bracket is fixedly connected with one end of the sliding block. The extrusion member includes a convex block. One end of the convex block is fixedly connected with the other end of the sliding block, and the other end of the sliding block slides through the inside of the inclined groove.

[0013] Further, the other end of the rotating block is provided with a speed reducer for driving the rotation of the rotating block. The rotating block is sleeved on the outer wall of the output shaft of the speed reducer, and a return spring for pushing the sliding block is arranged on the outer wall of one end of the output shaft of the speed reducer.

[0014] Further, the return spring includes a pushing spring. The pushing spring is sleeved on the outer wall of the output end of the speed reducer. One end of the pushing spring is fixedly connected to one end of the sliding block, and a fixing block for restricting the movement of the pushing spring is arranged at the other end of the pushing spring.

[0015] Further, a limiting frame for restricting the moving direction of the cutting knife is arranged on the front surface of the bracket. A groove is formed on the front surface of the bracket. The top of the bracket is fixedly connected to the inner wall of the installation cavity, and the bottom of the limiting frame is inserted into the groove.

[0016] Further, the auxiliary knife is fixedly connected to the inner wall of the cutting groove.

[0017] Further, the outer wall of the roller brush is provided with bristles and brush strips for cleaning an object. The bristles are obliquely arranged, and the brush strips are V-shaped.

[0018] Beneficial effects:

[0019] With the design of the cutting knife, roller brush, rotating block, auxiliary knife and sliding block, the present utility model sweeps hairs through the roller brush, causing the hairs to wind around the outer wall of the roller brush. As the roller brush rotates, the output shaft of the speed reducer drives the rotating block to rotate synchronously, thereby squeezing the sliding block, causing the sliding block to drive the cutting knife to perform an axial reciprocating motion through the bracket, so that the hairs falling into the cutting groove are cut short under the action of the cutting knife and are absorbed by the vacuum cleaner inside the floor sweeping robot, reducing the winding on the outer wall of the roller brush. Description of the drawings

[0020] Figure 1 is a three-dimensional structural schematic diagram of the roller brush of the present utility model;

[0021] Figure 2 is a first three-dimensional structural schematic diagram of the cutting mechanism and the roller brush of the present utility model;

[0022] Figure 3 is a second three-dimensional structural schematic diagram of the cutting mechanism and the roller brush of the present utility model;

[0023] Figure 4 is a sectional structural schematic diagram of the cutting mechanism of the present utility model;

[0024] Figure 5 is a first three-dimensional structural schematic diagram of the cutting knife and the bracket of the present utility model;

[0025] Figure 6This is the second three-dimensional structure schematic diagram of the cutting knife and the bracket of the present utility model;

[0026] Figure 7 This is the three-dimensional structure schematic diagram of the sliding block and the convex block of the present utility model;

[0027] Figure 8 This is the three-dimensional structure schematic diagram of the rotating block of the present utility model.

[0028] Wherein:

[0029] 1 - cutting knife; 2 - rolling brush; 3 - cutting groove; 4 - reduction gearbox; 5 - rotating block; 6 - sliding block; 7 - convex block; 8 - fixing block; 9 - pushing spring; 10 - bracket; 11 - limiting frame; 12 - auxiliary knife; 13 - limiting block; 14 - bristles; 15 - brush strip.

[0030] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0031] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0035] Referring to Figure 1-8 , an embodiment of the present invention provides a hair cutting mechanism, including:

[0036] A cutting knife 1 for cutting hair;

[0037] A sliding block 6 for driving the cutting knife 1 to perform an axial reciprocating motion. One end of the sliding block 6 is provided with a bracket 10 for connecting with the cutting knife 1, and the other end of the sliding block 6 is provided with an extrusion member for driving the sliding block 6 to move.

[0038] A rotating block 5 for driving the axial motion of the sliding block 6. One end of the rotating block 5 is provided with an inclined groove for pushing the extrusion member.

[0039] A roller brush 2, on the outer wall of which there is a cutting groove 3 for the cutting knife 1 to cut hair.

[0040] An auxiliary knife 12 for cooperating with the cutting knife 1 to cut hair.

[0041] Specifically, the cutting knife 1 is arranged in the middle of the roller brush 2. An installation cavity is provided inside the roller brush 2. A cutting groove 3 for the cutting knife 1 to cut hair is provided on the outer wall of the roller brush 2. The back surface of the auxiliary knife 12 is fixedly connected to the back surface of the inner wall of the cutting groove 3. The auxiliary knife 12 is arranged on the back of the cutting knife 1. On the outer wall of the roller brush 2, there are bristles 14 and brush strips 15 for cleaning an object. The bristles 14 are obliquely arranged, and the brush strips 15 are V-shaped.

[0042] Further, the rotary brush 2 is a rotary brush cylinder of an existing floor sweeping robot, which is fixedly connected to the output shaft of a rotating motor inside the floor sweeping robot. The rotating motor drives the rotary brush 2 to rotate, so that the rotary brush 2 rotates, driving the brush on the outer wall of the rotary brush 2 to perform the cleaning work. A cutting groove 3 is provided on the outer wall of the rotary brush 2, so that the entangled hair falls into the inside of the cutting groove 3. With the reciprocating movement of the cutting knife 1, the hair in the cutting groove 3 is cut. The bristles 14 are obliquely planted, and the directions of the multiple bristles 14 correspond to the V shape of the brush strip 15. Thus, with the rotation of the rotary brush 2, the bristles 14 and the brush strip 15 are driven to rotate synchronously. The hair can be guided to the cutting groove 3 through the V shape of the bristles 14 and the brush strip 15, so as to cut the hair.

[0043] Specifically, the front surface of the cutting knife 1 is fixedly connected to the back surface of the bracket 10. One end of the bracket 10 is fixedly connected to one end of the sliding block 6. The pressing member includes a convex block 7, and one end of the convex block 7 is fixedly connected to the other end of the sliding block 6. The other end of the sliding block 6 is slidably inserted into the inside of the inclined groove. The other end of the rotating block 5 is provided with a speed reducer 4 for driving the rotating block 5 to rotate. The rotating block 5 is sleeved on the outer wall of the output shaft of the speed reducer 4. A resilient member for pushing the sliding block 6 is provided on the outer wall of one end of the output shaft of the speed reducer 4. The resilient member includes a pushing spring 9, and the pushing spring 9 is sleeved on the outer wall of the output end of the speed reducer 4. One end of the pushing spring 9 is fixedly connected to one end of the sliding block 6, and a fixing block 8 for restricting the movement of the pushing spring 9 is provided at the other end of the pushing spring 9.

[0044] Further, with the direction of the cutting knife 1 towards the bracket 10 as the positive direction, the side of the bracket 10 facing the cutting knife 1 is the back of the bracket 10, the side of the cutting knife 1 facing the bracket 10 is the front. The cutting knife 1 is a metal saw blade, the bottom of the cutting knife 1 is a tooth alveolar groove, the auxiliary knife 12 is a metal plate, and the bottom of the auxiliary knife 12 is provided with a tooth alveolar groove. As the cutting knife 1 reciprocates, the tooth alveolar groove at the bottom of the cutting knife 1 cooperates with the tooth alveolar groove of the auxiliary knife 12 to exert a squeezing effect on the hair, thereby realizing the cutting of the hair. The fixing block 8 is clamped and fixed by the clamping block on the inner wall of the roller brush 2 installation cavity. The pushing spring 9 is arranged on the opposite sides of the fixing block 8 and the sliding block 6. The fixing block 8 is used to limit the movement of the pushing spring 9. The front of the cutting knife 1 is fixedly connected to the front of the bracket 10 by bolts. A circular hole is opened at the end of the bracket 10. A plug post is fixedly connected to the front of the sliding block 6, and the plug post is inserted into the circular hole, thereby realizing the fixed installation of the bracket 10 and the sliding block 6. The sliding block 6 and the convex block 7 are integrally cast. The convex block 7 and the bracket 10 are respectively arranged on both sides of the sliding block 6. A circular groove is opened on one side of the sliding block 6. A limiting block is fixedly connected to the outer wall of the sliding block 6. A limiting groove is opened on the inner wall of the roller brush 2. By inserting the limiting block 13 into the limiting groove, the sliding block 6 can only perform linear reciprocating motion and cannot rotate. The reduction gearbox 4 is an existing reduction gearbox, which is used to reduce the speed of the axial movement of the cutting knife 1. The sliding block 6 is sleeved on the outer wall of the output shaft of the reduction gearbox 4. The rotating block 5 is sleeved on the outer wall of the output shaft of the reduction gearbox 4. The vertical cross-section of the output shaft of the reduction gearbox 4 is three-quarters of a circle. An insertion hole is opened at one end of the rotating block 5. The size and shape of the insertion hole are adapted to the cross-section size and shape of the output shaft of the reduction gearbox 4. The output end of the rotating motor of the sweeping robot is inserted into the input end of the reduction gearbox 4. The output end of the reduction gearbox 4 drives the rotating block 5 to rotate synchronously. When the rotating block 5 rotates, it will drive the inclined groove to rotate at the same time. The inclined inner wall of the inclined groove will exert pressure on the convex block 7, thereby causing the convex block 7 to drive the sliding block 6 to move axially. The sliding block 6 squeezes the pushing spring 9. At the same time, the sliding block 6 drives the bracket 10 to move axially, and the bracket 10 drives the cutting knife 1 to move synchronously. When the rotating block 5 continues to rotate so that the inclined inner part of the inclined groove no longer exerts pressure on the end of the convex block 7, the restoring force of the pushing spring 9 will push the sliding block 6 to move towards the rotating block 5, so that the sliding block 6 drives the cutting knife 1 to move synchronously, thereby realizing the reciprocating axial movement of the cutting knife 1 for hair cutting.

[0045] Specifically, a limiting frame 11 for limiting the moving direction of the cutting knife 1 is arranged on the front of the bracket 10. A groove is opened on the front of the bracket 10. The top of the bracket 10 is fixedly connected to the inner wall of the installation cavity. The bottom of the limiting frame 11 is inserted into the groove.

[0046] Furthermore, the bottom of the limiting frame 11 is pressed into an arc shape, the bracket 10 is provided with a groove which is an arc-shaped groove, the bottom of the limiting frame 11 is inserted and connected with the groove, a clamping block is fixedly connected to the back surface of the inner wall of the cutting groove 3, a clamping groove is formed in the front surface of the auxiliary knife 12, and the clamping block is inserted into the clamping groove, so as to install the auxiliary knife 12 and the cutting groove 3. At the same time, the top of the cutting knife 1 is provided with a pressing plate, the pressing plate is bent, and two pressing plates are provided, which are used to press the auxiliary knife 12 when the cutting knife 1 moves, so as to prevent the separation of the auxiliary knife 12 from the clamping block, and at the same time ensure that there is no collision between the teeth of the cutting knife 1 and the auxiliary knife 12. Under the interaction of the auxiliary knife 12 and the limiting frame 11, the cutting knife 1 can only move linearly, so as to prevent the large shaking of the cutting knife 1 when cutting hair, and ensure the cutting effect of the cutting knife 1 on the hair.

[0047] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A hair cutting mechanism, characterized in that, Comprising: A cutting knife for cutting hair; A sliding block for driving the cutting knife to perform axial reciprocating motion. One end of the sliding block is provided with a bracket for connecting with the cutting knife, and the other end of the sliding block is provided with an extrusion member for driving the sliding block to move; A rotating block for driving the axial motion of the sliding block. One end of the rotating block is provided with an inclined groove for pushing the extrusion member; A roller brush, on the outer wall of which there is a cutting groove for the cutting knife to cut hair; An auxiliary knife for cooperating with the cutting knife to cut hair; On the outer wall of the roller brush, there are bristles and brush strips for cleaning an object. The bristles are obliquely arranged, and the brush strips are V-shaped.

2. The hair cutting mechanism according to claim 1, wherein, The cutting knife is arranged in the middle of the roller brush, and an installation cavity is formed inside the roller brush.

3. The hair cutting mechanism according to claim 1, wherein, The cutting knife is fixedly connected with the bracket. One end of the bracket is fixedly connected with one end of the sliding block. The extrusion member includes a convex block, one end of the convex block is fixedly connected with the other end of the sliding block, and the other end of the sliding block is slidably inserted into the inclined groove.

4. The hair cutting mechanism according to claim 1, wherein, The other end of the rotating block is provided with a speed reducer for driving the rotating block to rotate. The rotating block is sleeved on the outer wall of the output shaft of the speed reducer, and on the outer wall of one end of the output shaft of the speed reducer, there is a resilient member for pushing the sliding block.

5. The hair cutting mechanism according to claim 4, wherein, The resilient member includes a pushing spring sleeved on the outer wall of the output end of the speed reducer. One end of the pushing spring is fixedly connected with one end of the sliding block, and the other end of the pushing spring is provided with a fixing block for restricting the movement of the pushing spring.

6. The hair cutting mechanism according to claim 2, wherein, On the front surface of the bracket, there is a limiting frame for restricting the moving direction of the cutting knife. A groove is formed on the front surface of the bracket. The top of the bracket is fixedly connected with the inner wall of the installation cavity, and the bottom of the limiting frame is inserted and connected with the groove.

7. The hair cutting mechanism according to claim 1, wherein, The auxiliary knife is fixedly connected with the inner wall of the cutting groove.

Images