CN211199751U

CN211199751U - Fuzzy ball trimmer adopting negative pressure impeller

Info

Publication number: CN211199751U
Application number: CN201920945558.5U
Authority: CN
Inventors: 祝永锋; 叶志文; 肖林
Original assignee: Huanxing Technology Hangzhou Co ltd
Current assignee: Huanxing Technology Hangzhou Co ltd
Priority date: 2019-06-22
Filing date: 2019-06-22
Publication date: 2020-08-07
Anticipated expiration: 2029-06-22

Abstract

The utility model discloses an adopt negative pressure impeller's pompon clipping machine, include the cutting off tool assembly, move cutting off tool assembly, impeller, motor and body, move cutting off tool assembly and impeller install respectively in the drive shaft of motor, it is equipped with the cutting off tool assembly to move the cutting off tool assembly outward, be equipped with the installation cavity and store up bits chamber that are used for installing power component on the body at least, the motor install in the installation cavity, the installation cavity with store up bits chamber intercommunication, the impeller is negative pressure impeller, pompon clipping machine during operation, the rotatory negative pressure that produces of negative pressure impeller collects the internal flock that moves cutting off tool assembly to storing up the bits intracavity. The utility model discloses in, through the negative pressure condition, at the pompon clipping machine during operation, directly collect storage bits chamber with installation intracavity exhaust flocks etc. has improved the collection rate of flocks, makes things convenient for the clearance of flocks.

Description

Fuzzy ball trimmer adopting negative pressure impeller

Technical Field

The utility model relates to a clean technical field of daily family expenses, concretely relates to adopt pompon clipping machine of negative pressure impeller.

Background

A lint picker is a small home appliance that can remove lint on the surface of clothes. It utilizes and moves the knife tackle spare motion, gets rid of the hair bulb etc. on the clothing through the blade motion, and then the hair bits of getting rid of exist and store up the bits chamber and this is internal, through opening and store up the bits chamber, clear up the body and store up the hair bits etc. of bits intracavity.

Because the hair chip body quality is lighter, and in the hair bulb clipping machine motion, move in the motion such as sword subassembly and impeller, make the hair chip fly in disorder, and then the storage of hair chip is not always all located stores up the bits intracavity, including impeller and blade border have certain sharp characteristics, make the clearance behind the hair chip processing become a difficult problem, though can clear up most hair chip, but exist in this internal hair chip can fly to power component for a long time, on blade and the impeller, when using again, cause easily that power component unhairing effect is poor, the blade rotates slowly and impeller work efficiency reduces the scheduling problem.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an adopt negative pressure impeller's pompon clipping machine, it passes through negative pressure impeller to and the position relation in impeller and storage bits chamber, will move the flock etc. that cutter unit in-process produced and blow to storing up bits chamber, improved the collection efficiency of flock, directly blow most flock to storing up bits chamber, the flock clearance of being convenient for.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a fuzzy ball trimmer adopting a negative pressure impeller comprises a cutter mesh component, a movable cutter component, an impeller, a motor and a body, wherein the movable cutter component is connected with the impeller and then installed on a driving shaft of the motor;

the installation cavity is communicated with the chip storage cavity, the impeller is a negative pressure impeller, and when the lint trimmer works, the negative pressure impeller rotates to generate negative pressure to collect the lint trimmed by the moving blade assembly in the body into the chip storage cavity.

Firstly, in the prior art, the impeller rotates to generate wind power, the flock sheared by the flock trimmer can flow along the trend of the wind in an uncertain manner, and when the impeller rotates, centrifugal force is generated, so that part of the flock can be blown to the periphery of the impeller, and the problem that the flock is difficult to clean is further caused. Among this technical scheme, utilize the principle that the negative pressure condition can take out the flock, blow the flock to storing up the bits chamber, and then improved the collection rate that stores up the bits chamber, make things convenient for pouring of flock simultaneously.

Secondly, in this technical scheme, utilize the negative pressure principle, need not unnecessary equipment, in work, the impeller rotates, produces the negative pressure, and the environment in whole installation cavity is the negative pressure environment, and the bits chamber outside the installation cavity then is normal atmospheric pressure, and both produce pressure differential this moment, and the collection of bits of wool and impurity has been improved to bits chamber of storing up by being blown under the effect of pressure differential.

And thirdly, the lint trimmer can remove the lint and remove part of impurities in the operation process. During prior art clearance, not only will handle the impurity that stores up the bits intracavity, still need handle other impurity in the installation cavity, and among this technical scheme, because the negative pressure effect, near impurity near installation cavity and the impeller can be blown to storing up the bits chamber, and then has greatly made things convenient for this internal clearance.

Finally, in the technical scheme, the structure is simple, the environment of the hair bulb trimmer in work is changed by adding the negative pressure impeller, and the collection of the hair scraps is realized.

As a further improvement, the utility model also comprises a guide inclined plane, the guide inclined plane set up in negative pressure impeller and store up between the bits chamber, when negative pressure impeller was rotatory, the flock got into through the guide inclined plane and stores up between the bits chamber.

Through increasing the guide inclined plane, under the effect of guide inclined plane and negative pressure impeller for move the speed that the bits of hair that the sword subassembly shaved moved towards storing up bits of hair chamber, avoided the bits of hair to be detained in the intermediate link, improve bits of hair collection efficiency.

As a further improvement, the utility model also comprises a motor bracket, the motor passes through motor bracket mounting in the installation cavity, the guide inclined plane is fixed with motor bracket on, the guide inclined plane with form the drainage chamber between the installation cavity.

The motor and the guide inclined plane are fixed by the motor bracket at the same time, so that two purposes are achieved at one stroke; the motor support is structurally provided with a plurality of vacant positions, the position arrangement of the guide inclined plane is increased, and meanwhile, the size and the length of the guide inclined plane can be adjusted according to the frame structure of the support.

As a further improvement of the present invention, a cavity with gradually increasing width is formed between the guiding inclined plane and the installation cavity; the side with the large width of the cavity body is close to the scrap storage cavity.

Because the width crescent, so can accomodate more flocks, and be close to the impeller position, move the sword subassembly and begin to shave hair, and then the flocks are few, and more flocks move towards storing up bits chamber after leaning on more, and the storage of more flocks can be realized to the cavity of increase for it is fast stable to be collected towards storing up bits chamber. The realization of large cavity width can be realized by adjusting the thickness of the guide inclined plane, setting the inclination of the guide inclined plane and the like.

As a further improvement of the utility model, an included angle of 30-60 degrees is formed between the extension line of the guide inclined plane and the rotating shaft of the motor.

If the included angle is too small, the formed guide cavity is too sharp, the initial flock receiving effect is poor, the starting working efficiency is influenced, and even blockage is easily caused; if the included angle is too large, the width of the front cavity is already large, the angle change is small, the width of the rear cavity is not easy to expand, and the flock collecting efficiency is low.

As a further improvement of the utility model, the guide inclined plane is an inwardly sunken arc-shaped structure.

The guide inclined plane is the arc structure, forms the structure similar to bracket with the installation cavity part between, and from the cross section view, the cross section between guide inclined plane and the installation cavity grow, and the guide chamber that forms becomes promptly grows, and the reserve volume grow.

As a further improvement of the utility model, the drainage device further comprises an auxiliary surface arranged on two sides of the guide inclined plane, and an auxiliary drainage cavity is formed between the auxiliary surface and the installation cavity.

Through increasing the auxiliary drainage chamber, in addition the working property of negative pressure impeller, can accelerate the collection after the bits of hair are detached, and negative pressure impeller during operation promptly moves the sword subassembly and shaves a lot of bits of hair, and these bits of hair are through the cavity between guide inclined plane and the installation cavity and the auxiliary drainage chamber moves towards storing up the bits chamber, and speed improves greatly.

As a further improvement of the utility model, the utility model also comprises a handheld part connected with the body, the guide inclined plane is arranged on one side of the installation cavity, which is far away from the handheld part.

Keep away from handheld portion setting, then the hair bits can not move towards handheld portion, because handheld portion generally is equipped with subassembly such as battery, then through such setting, has ensured the performance of handheld portion power, avoids the hair bits too much to get into in the battery pack.

As a further improvement of the utility model, the negative pressure impeller comprises a hub and blades arranged on the hub, and the number of the blades is 6-10.

For the hair bulb trimmer which is a small household appliance, if the number of blades is increased, the volume of the whole body is increased, so that the portability of the hair bulb trimmer is reduced; if the number of blades is too small, the negative pressure and the rotating wind are small, and the efficiency of hair bulb trimming is reduced.

As a further improvement of the utility model, the blade is of a spiral structure.

Adopt spiral structure, the area is great, can increase the weight of clapping, produces stronger air current, and the effectual air current row that produces the blade is to the installation cavity, blows hair bulb, flock and dust fast to storing up the bits intracavity simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the installation of the body assembly provided by the present invention;

FIG. 2 is a cross-sectional view of the hair bulb trimmer provided by the present invention;

fig. 3 is a partial enlarged view of a in fig. 2 according to the present invention;

fig. 4 is a schematic structural view of the guiding inclined plane provided by the present invention;

fig. 5 is a second cross-sectional view of the hair bulb trimmer according to the present invention;

fig. 6 is one of the schematic structural diagrams of the middle cover provided by the present invention;

fig. 7 is a second schematic structural view of the middle cap according to the present invention;

fig. 8 is a schematic structural diagram of an impeller provided by the present invention;

the corresponding part names indicated by the numbers and letters in the drawings:

100. a knife net assembly; 200. a movable knife component; 300. an impeller; 310. a hub; 320. a blade; 400. a motor; 500. a body; 700. an end cap; 800. a middle cover; 810. a limiting plate; 811. a limiting part; 812. a gear part; 820. a protection cavity; 900. a hinge assembly; 910. a first component; 920. a second component;

10. a clamping part; 20. a fastening part; 30. a guide ramp; 40. a motor bracket; 50. an auxiliary surface; 60. a hand-held portion.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

The utility model provides an adopt pompon clipping machine of negative pressure impeller, including cutting off tool set spare, moving tool set spare, impeller, motor and body, move tool set spare and impeller and install respectively in the drive shaft of motor, move the tool set spare and be equipped with the cutting off tool set spare outward, be equipped with the installation cavity and the bits storage chamber that are used for installing power component on the body at least, the motor is installed in the installation cavity; the installation cavity is communicated with the chip storage cavity, the impeller is a negative pressure impeller, and when the lint trimmer works, the negative pressure impeller rotates to generate negative pressure to collect the lint trimmed by the moving blade assembly in the body into the chip storage cavity.

Firstly, in the prior art, the impeller rotates to generate wind power, the flock sheared by the flock trimmer can flow along the trend of the wind in an uncertain manner, and when the impeller rotates, centrifugal force is generated, so that part of the flock can be blown to the periphery of the impeller, and the problem that the flock is difficult to clean is further caused. Among this technical scheme, utilize the principle that the negative pressure condition can take out the flock, blow several kinds of flocks to storing up the bits chamber, and then improved the collection rate that stores up the bits chamber, make things convenient for pouring out of flock simultaneously.

Example 1

Referring to fig. 1, in the present embodiment, the lint picker includes a cutter mesh assembly 100, a movable cutter assembly 200, an impeller 300, a motor 400, and a body 500, and when the lint picker is installed, the movable cutter assembly 200 is connected to a central shaft of the impeller 300 and then connected to a driving shaft of the motor 400; the knife net assembly 100 is arranged outside the movable knife assembly 200, the body 500 is at least provided with an installation cavity for installing the motor 400 and a scrap storage cavity, and the motor is installed in the installation cavity; in this embodiment, the mounting cavity is communicated with the flock storage cavity, the impeller is a negative pressure impeller, and when the lint trimmer works, the negative pressure impeller rotates to generate negative pressure, so that flock trimmed by the movable cutter assembly in the body is collected into the flock storage cavity.

In this embodiment, can locate the both ends of body 500 respectively with moving cutter unit spare 200 and storing up the bits chamber, and then negative pressure impeller 300 is in same horizontal plane with storing up the bits chamber, conveniently blows the flock to storing up the bits intracavity.

As a further improvement of the present invention, when the negative pressure impeller 300 rotates, the generated negative pressure is-0.06 MPA to-0.04 MPA. Through the negative pressure in the range, the fluff can be blown to the fluff storage cavity without influencing the work of other components in the lint trimmer. Generally, in industry, the negative pressure of the negative pressure fan can form a negative pressure of 0.04MPA at the air exhaust end, which means that 40% of air in the closed container can be exhausted, and the pressure difference between the residual 60% and the external atmospheric pressure is 100 × 1-0.6 — 40KPA (namely, the negative pressure value is: -40KPA), which is shown as-0.04 MPA on a common vacuum meter. (assuming local atmospheric pressure of 0.1 MPa).

Furthermore, the negative pressure fan utilizes the cooling principle of air convection and negative pressure ventilation, and is a machine which naturally sucks fresh air from a gate or a window opposite to an installation place and quickly and forcibly discharges indoor hot air outdoors, and the cooling and ventilation effect can reach 90-97 percent. Negative-pressure air fan can also realize the cooling effect promptly, and negative-pressure air fan sets up near motor 400 in addition, and then can reduce the temperature of motor 400 in the work, avoids motor high temperature, prolongs its life. Meanwhile, the negative pressure fan reasonably controls the negative pressure environment, so that the whole internal temperature is stable when the whole lint trimmer works, and the protection effect on each component is good.

If the negative pressure is too small, the cleaning of the flock cannot be realized; and negative pressure is too big, then leads to other parts in this body except for the hair bits to be influenced, for example too big negative pressure can make the work of cutter mesh subassembly and moving the cutter unit influenced, and then makes it move towards the big storing up bits chamber of pressure, leads to the unable effective work of hair bulb clipping machine.

Referring to fig. 2 to 4, the chip cleaner further includes a guide inclined surface 30, the guide inclined surface 30 is disposed between the negative pressure impeller 300 and the chip storage cavity, and when the negative pressure impeller rotates, the flocks enter between the chip storage cavity through the guide inclined surface.

Through increasing guide inclined plane 30, under guide inclined plane 30 and negative pressure impeller's effect for move the speed that the bits of wool that the sword subassembly shaved moved towards storing up bits of wool chamber, avoided the bits of wool to be detained in the intermediate link, improve bits of wool collection efficiency.

Further, the motor 400 is installed in the installation cavity through the motor bracket 40, the guide inclined plane 30 is fixed on the motor bracket 40, and a drainage cavity is formed between the guide inclined plane 30 and the installation cavity.

The motor 400 and the guide inclined plane 30 are fixed by the motor bracket 40, so that two purposes are achieved; generally, the motor bracket is a bracket structure, and further, there are many vacant positions on the structure of the motor bracket 40, so that the position arrangement of the guide slope 30 is increased, and meanwhile, the size and the length of the guide slope 30 can be adjusted according to the frame structure of the bracket.

Example 2

Referring to fig. 4, in order to accelerate the flow of the flock, a cavity with gradually increased width is formed between the guide inclined surface 30 and the installation cavity; the side with the large width of the cavity body is close to the scrap storage cavity.

Further, an included angle of 30-60 degrees is formed between the extension line of the guide slope 30 and the rotating shaft of the motor 400.

Further, the guide slope 30 is an arc structure that is concave inward. The maximum cross section of the guide inclined plane 30 is a semicircle, and if the cross section is too large and the depth is too deep, the guide inclined plane is not suitable for cleaning; if too shallow, the accommodation is small, the guiding and accommodating effect is slightly poor.

The guide inclined plane 30 is of an arc-shaped structure, a bracket-like structure is formed between the guide inclined plane 30 and the installation cavity, and the cross section between the guide inclined plane 30 and the installation cavity is enlarged when viewed from the cross section, namely the formed guide cavity is enlarged, and the volume of the scraps is enlarged.

Referring to fig. 4, the auxiliary drainage device further comprises auxiliary surfaces 50 arranged on two sides of the guide inclined surface 30, wherein an auxiliary drainage cavity is formed between the auxiliary surfaces 50 and the installation cavity.

Further, a hand-held part 60 connected with the body 500 is further included, and the guiding inclined plane 30 is disposed at a side far away from the hand-held part 60 in the installation cavity.

Example 3

Referring to fig. 5, the scrap storage device further includes an end cover 700 for closing the scrap storage cavity and an annular middle cover 800, the middle cover 800 is fixed to the body 500 through screws and the like, the middle cover 800 is provided with an installation groove, and the end cover 700 is hinged to the middle cover 800 through the installation groove.

In the technical scheme, the middle cover 800 is added, so that the connection sealing performance of the end cover 700 and the body 500 is improved, when the end cover 700 is buckled, the force applied to the end cover 700 is transmitted to the body 500 through the middle cover 800, the force is reduced, the damage to the body 500 is reduced, and the protection to the body 500 is enhanced; the middle cover 800 is arranged on the body 500, which is equivalent to the end of the body 500, and then is hinged with the end cover 700, so that no connecting piece is required to be added on the body 500, and the structure of the body 500 is further protected. Adopt annular well lid 800, during the installation, can be connected with body 500 through the form of bolt and recess, when the annular was equipped with the recess, body 500 increased rather than the arch of matching, realized seamless butt joint, increased leakproofness and apparent pleasing to the eye, during the design, conveniently realized with body 500's matching.

In this embodiment, one end of the middle cap 800 is provided with a screw hole for screw connection with the body 500; one of the other end of the middle cover 800 or the body 500 is provided with an installation part, the other one is provided with an installation groove, and the installation column is clamped with the installation groove to realize the connection of the end part of the middle cover 800 and the body 500.

Further, can set up the wedge structure at the installation department low extreme, then set up in the buckle groove that the wedge structure matches in the mounting groove, realize the knot position of wedge structure and connect.

Further, a hinge assembly 900 is arranged in the mounting groove, and the end cover 700 is hinged to the middle cover 800 through the hinge assembly 900.

Referring to fig. 5, further, the hinge assembly 900 includes a first assembly 910 and a second assembly 920, the first assembly 910 is a screw rod sleeved with a spring, the first assembly 910 passes through the end cover 700 and then passes through a thread on the second assembly 920 to form the hinge assembly 900, the second assembly 920 is provided with a screw hole, then the second assembly 920 is fixed on the middle cover 800 through a screw, and the end cover 700 rotates around the first assembly 910 to realize the hinge.

Because the end cover 700 is a cover plate, if a more complex hinge is adopted, the thickness of the middle cover 800 is increased to meet the strength requirement and the complexity; and through hinge assembly 900, simple structure, and articulated effectual, be fit for the end cover of apron structure.

Example 4

As shown in fig. 2 to 5, in order to facilitate opening of the end cap 700, a switch assembly is further included, and the switch assembly is used for controlling the opening of the end cap 700; the switch assembly includes a detent portion 10 located on one of the cover 700 or the body 500, and a latch portion 20 located on the other, and the detent portion 10 is pressed to disengage the detent portion 10 from the latch portion 20.

Through the pressing part in the switch component, the end cover 700 is opened in place at one time, and the convenient opening of the scrap storage cavity is realized. Compared with the modes of buckles, threads and the like, the novel multifunctional combined screw driver saves time and labor, is more humanized in design and wider in application range.

Referring to fig. 6 to 7, further, a stopper plate 810 for restricting the movement of the catching portion 10 is provided at the bottom of the middle cap 800, and the stopper plate 810 is partially inserted into the middle cap 800.

Increase limiting plate 810, realized the spacing of screens portion 10, and then down on time, screens portion 10 can only reach certain degree, can not be deeper get into inside body 500 or the end cover 700, lead to it to be difficult for taking out, influence the use. Meanwhile, the plate is selected, so that materials are saved on one hand, and space is reserved for other subsequent designs on the other hand.

Referring to fig. 6, the stopper plate 810 extends to form a stopper 811 partially contacting the stopper 10.

In this embodiment, the spring is arranged on the clamping portion 10, one end of the spring is connected with the clamping portion 10, and the other end of the spring is limited by the limiting plate 810.

Spacing portion 811 laminates with screens portion 10, has restricted screens portion 10 in other words and has shaken about, has guaranteed in the use, and the stability of screens portion because be connected with the spring on the screens portion, in case screens portion is unstable, the spring probably moves to other positions, especially when the pompon is pruned, moves knife tackle spare 200 and negative pressure impeller 300 and rotates at high speed, is influenced by the spring easily, causes the damage of clipping machine, causes personnel's injury even.

Furthermore, the length of the limiting part 811 is one fourth to two fifths of the length of the positioning part 10, and the limiting part 811 is attached to the positioning part 10; that is, a part of the limiting portion 811 is always attached to the engaging portion 10, and when the engaging portion 10 is pressed down, the attached portion is increased, so that the limiting is always realized.

Further, the position-limiting plate 810 is further provided with a position-blocking portion 812, and when the end cover 700 is fastened, the position-blocking portion 812, the position-limiting portion 811 and the position-limiting plate 810 cover the end of the position-blocking portion 10, so as to limit the movement range of the position-blocking portion 10.

Because the switch assembly is connected by the buckle, the rotation of the movable cutter assembly in the hair bulb trimmer easily causes weak vibration on the end cover 700 or the body 500, so that the clamping is not loosened, and the increase of the gear portion 812 causes the clamping portion 10 to move only a partial distance and to be always clamped with the clamping portion, so that the clamping cannot fall off, and the clamping connection is effectively protected.

Referring to fig. 6 to 7, a protection cavity 820 is formed in the middle cover 800 and extends along the periphery of the middle cover 800, two sides of the middle cover 800 are protected by the protection cavity, and the installation hole and other installation parts for connecting the middle cover 800 and the body 500 are arranged in the protection cavity 820, so that the service life of the middle cover 800 is prolonged.

Example 5

Referring to fig. 8, in the present embodiment, the negative pressure impeller 300 includes a hub 310 and blades 320 disposed on the hub 310, and the number of the blades 320 is 6-10.

For a hair bulb trimmer, which is a small household appliance, if the number of the blades 320 is increased, the volume of the whole body is increased, so that the portability is reduced; if the blades 320 are too few, the negative pressure and the rotational wind are small, and the efficiency of the hair bulb cutting is reduced.

Further, the blade 320 has a spiral structure.

Referring to fig. 1, in the present embodiment, the body 500 further includes a handheld portion, the handheld portion is perpendicular to the body, and the handheld portion is integrally disposed at the bottom of the body 500.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A fuzzy ball trimmer adopting a negative pressure impeller is characterized by comprising a cutter mesh component, a movable cutter component, an impeller, a motor and a body, wherein the movable cutter component is connected with the impeller and then installed on a driving shaft of the motor;

the impeller is a negative pressure impeller, when the hair bulb trimmer works, the negative pressure impeller rotates to generate negative pressure, and the hair shreds trimmed by the moving cutter assembly in the body are collected in the hair shred storage cavity.

2. The lint picker according to claim 1, further comprising a guide slope disposed between the negative pressure impeller and the debris storage chamber, wherein when the negative pressure impeller rotates, the lint enters between the debris storage chamber through the guide slope.

3. The lint picker according to claim 2, further comprising a motor bracket, wherein the motor is mounted in the mounting cavity through the motor bracket, the guiding inclined plane is fixed to the motor bracket, and a drainage cavity is formed between the guiding inclined plane and the mounting cavity.

4. The hair bulb trimmer according to claim 3, wherein a cavity with a gradually increased width is formed between the guide slope and the mounting cavity; the side with the large width of the cavity body is close to the scrap storage cavity.

5. The hair bulb trimmer according to claim 2, wherein an angle formed between an extension of the guide slope and a rotating shaft of the motor is 30 ° to 60 °.

6. The hair bulb trimmer according to claim 5, wherein said guide ramp is an inwardly concave arc-shaped structure.

7. The hair bulb trimmer according to claim 6, further comprising auxiliary surfaces disposed on both sides of the guide slope, wherein an auxiliary drainage chamber is formed between the auxiliary surfaces and the mounting chamber.

8. The hair bulb trimmer according to claim 7, further comprising a hand-held portion connected to the body, wherein the guiding inclined surface is disposed on a side of the mounting cavity away from the hand-held portion.

9. The hair bulb trimmer according to any one of claims 1 to 8, wherein the negative pressure impeller comprises a hub and blades arranged on the hub, and the number of the blades is 6 to 10.

10. The hair bulb trimmer according to claim 9, wherein said blade is of a spiral configuration.