CN217318111U

CN217318111U - Dustproof, waterproof and foreign-body-preventing structure and hair scissors

Info

Publication number: CN217318111U
Application number: CN202220811038.7U
Authority: CN
Inventors: 李金红; 虞智勇
Original assignee: Zhejiang Meisen Electrical Appliance Co Ltd
Current assignee: Zhejiang Meisen Electrical Appliance Co Ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-08-30
Anticipated expiration: 2032-04-08

Abstract

The utility model discloses a dustproof, waterproof and foreign matter-proof structure, which comprises a matching hole which is arranged on the body of a small household appliance and can be used for the rotating shaft of a motor to extend out, and a soft rubber sleeve which is arranged outside the rotating shaft of the motor and can coaxially rotate with the rotating shaft, wherein a plurality of rings of annular fins are arranged on the soft rubber sleeve, and the fins are matched with the matching hole so as to prevent foreign matters from entering one side of the motor from the matching hole; the utility model also discloses an adopt the hair clipper of foretell dustproof and waterproof structure of preventing foreign matter, including the body of hair clipper to and quiet cutter unit spare, move cutter unit spare and motor, the motor is used for the drive to move cutter unit spare relatively quiet cutter unit spare and is reciprocating motion, this internal dustproof and waterproof structure of preventing the foreign matter that is equipped with has simple structure, can block foreign matter and water entering motor department, characteristics that the noise is little.

Description

Dustproof, waterproof and foreign-body-preventing structure and hair scissors

[ technical field ] A method for producing a semiconductor device

The utility model relates to a small household appliances, specifically speaking relate to a dustproof and waterproof prevents structure of foreign matter, the utility model discloses still relate to a hair clipper.

[ background ] A method for producing a semiconductor device

In small household appliances, it is very common to use motor drive, and many small household appliances often contact the human body, easy contact dander, chad or dust, or wash with water, and the motor is as transmission output, has gapped between its pivot and the body of small household appliances, and these dander, dust or water enter into motor department through the position of motor pivot easily, cause like the motor rust, the axle is blocked, debris pile up the bad of producing bacterium etc.. At present, a hole is usually formed on the body of a small household appliance for the rotating shaft of a motor to extend out, a waterproof ring is fixed at the position of the hole and the rotating shaft, and a gap between the hole and the rotating shaft is sealed, for example, the publication number CN111844145A, which is named as an invention patent application of hair scissors, the sealing structure has large rotating resistance of one rotating shaft, and the other rotating shaft is easy to generate noise.

The present invention is made based on such a situation.

[ Utility model ] content

The utility model discloses an it is not enough that prior art has been overcome to the purpose, and the technical problem that solve provides a dustproof and waterproof prevents structure of foreign matter, has simple structure, does benefit to the characteristics that reduce motor shaft pivoted resistance and noise.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model provides a dustproof and waterproof prevents structure of foreign matter, is including setting up the mating holes that can supply the pivot of motor to stretch out on the body of little household electrical appliances to and set up in the pivot outside of motor and can with the flexible glue cover of the coaxial rotation of pivot, thereby the flexible glue is sheathe in and is equipped with a plurality of rings of annular fins, thereby fin and mating holes cooperate and block that foreign matter gets into one side at motor place from the mating holes.

In the above structure of preventing dust, water and foreign matters, the fins are tapered outward from a side close to the motor.

According to the structure for preventing dust, water and foreign matters, the fins are in interference fit with the matching holes.

According to the structure for preventing dust, water and foreign matters, the fin is located in the middle of the depth direction of the matching hole and is completely placed in the matching hole.

According to the structure for preventing dust, water and foreign matters, the matching hole is formed by a sleeve, and the sleeve is of an integrally formed circular ring structure; or the matching hole is formed by combining the upper shell and the lower shell of the product body.

According to the structure of dustproof, waterproof and foreign matter prevention, an installation shaft is arranged between the soft rubber sleeve and the rotating shaft and is used for being fixedly connected with the rotating shaft, and the soft rubber sleeve is installed on the installation shaft.

According to the structure for preventing dust, water and foreign matters, the side face of the mounting shaft is provided with a circle of concave annular grooves, the soft rubber sleeve is clamped in the annular grooves and tightly sleeved on the mounting shaft, and the annular grooves limit the soft rubber sleeve to be separated from the mounting shaft from the axial direction.

According to the structure of the dustproof, waterproof and foreign-body-proof structure, the soft rubber sleeve is a silica gel sleeve or a rubber sleeve.

The utility model aims to solve another technical problem that a hair clipper is provided, have simple structure, can block foreign matter and water entering motor department, characteristics that the noise is little

the utility model provides a hair clipper, includes hair clipper's body to and quiet sword subassembly, move sword subassembly and motor, the motor is used for the drive to move the relative quiet sword subassembly of sword subassembly and do reciprocating motion, this internal structure of being equipped with as above dustproof and waterproof prevent the foreign matter.

Compared with the prior art, the utility model discloses there is following advantage:

1. the utility model discloses a dustproof and waterproof prevents structure of foreign matter cooperatees through fin and mating holes to effectively keep off dirt, manger plate and block that the foreign matter enters into motor department. When the motor works, the rotating shaft drives the soft rubber sleeve to coaxially rotate, the fins rotate in the matching holes, the resistance between the fins and the matching holes is small, and the noise is low.

2. The utility model discloses well fin and mating holes interference fit to form sealed structure in fin department, when having better dustproof and waterproof foreign matter prevention function, because the fin is the flexible glue and for the toper, has better elastic deformation ability, pressure is little between its and the pore wall of mating holes, and during the rotation, the noise of production is little for the resistance between fin and the pore wall.

3. The utility model discloses a hair clipper can effectively block entering motor department such as dust, dander in the position of fin and mating holes, when washing hair clipper's cutting head, is carrying the handle and is stretching the cutting head and wash, also can effectively block water entering motor department in fin and mating holes department. Moreover, when the hair is cut, the hair cutter is close to the head, the noise is low, the adverse effect of the noise on consumers is effectively reduced, and the use experience of the consumers is improved.

[ description of the drawings ]

The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:

FIG. 1 is an exploded view of a structure of the present invention for dust, water and foreign matter prevention;

fig. 2 is a sectional view of a hair clipper to which a structure for preventing dust, water and foreign substances is applied;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic structural view of an embodiment in which the fins are in interference fit with the fitting holes.

[ detailed description ] embodiments

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1 to 4, a dustproof and waterproof structure for preventing foreign matters comprises a matching hole 4 which is arranged on a body 1 of a small household appliance and can be extended by a rotating shaft 3 of a motor 2, and a soft rubber sleeve 5 which is arranged on the outer side of the rotating shaft 3 of the motor 2 and can coaxially rotate with the rotating shaft 3, wherein the soft rubber sleeve 5 is preferably a rubber sleeve or a silica gel sleeve, a plurality of rings of annular fins 51 are arranged on the soft rubber sleeve 5, and the fins 51 are matched with the matching hole 4 to block foreign matters from entering one side of the motor 2 from the matching hole 4, so that dust and water are effectively blocked, and foreign matters are prevented from entering the motor. When the motor works, the rotating shaft 3 drives the soft rubber sleeve 5 to coaxially rotate, the fins 51 rotate in the matching holes 4, the resistance between the fins and the matching holes is small, and the noise is low.

The fins 51 are tapered outward from the side close to the motor 2 to help block foreign objects.

As shown in fig. 4, the fins 51 are in interference fit with the mating holes 4, so that a sealed structure is formed at the fins 51, and the fin 51 has a good dustproof, waterproof and foreign matter-proof function, and meanwhile, the fin 51 is soft rubber and conical, has good elastic deformability, has a small pressure with the wall of the mating hole 4, and generates a small noise due to the resistance between the fin and the wall of the mating hole during rotation. Of course, as shown in the embodiment of fig. 3, the fins 51 and the fitting holes 4 may be in transition fit or clearance fit, when the clearance is in clearance fit, the clearance is between 0 mm and 0.5mm, these two fitting structures can prevent dust and foreign matters to some extent, and since small household appliances, such as hair clippers, washing is usually also a washing head, but is rarely immersed in water, through the fit of the fins 51 and the fitting holes 4, water can be effectively prevented from splashing or directly flowing in.

In order to obtain a stable blocking effect even during rotation, the fin 51 is located at the middle of the depth direction of the fitting hole 4 and is completely placed in the fitting hole 4.

In the embodiment shown in fig. 1, the fitting hole 4 is formed by a sleeve 6, and the sleeve 6 has an integrally formed circular ring structure and is simple in structure. Of course, the fitting hole 4 may be formed by combining the upper case 11 and the lower case 12 of the product body 1, and the illustration is omitted.

Be equipped with installation axle 7 between soft gum cover 5 and the pivot 3, installation axle 7 is used for with pivot 3 fixed connection, soft gum cover 5 is installed on installation axle 7. Specifically, as shown in fig. 1, a circle of concave annular groove 71 is formed in the side surface of the mounting shaft 7, the soft rubber sleeve 5 is clamped in the annular groove 71 and tightly sleeved on the mounting shaft 7, the annular groove 71 limits the soft rubber sleeve 5 from axially dropping off the mounting shaft 7, and the soft rubber sleeve mounting structure is simple in structure and easy to produce and mount.

As shown in fig. 2, the hair clipper comprises a hair clipper body 1, a stationary knife assembly, a movable knife assembly and a motor 2, wherein an eccentric shaft 8 which is eccentrically arranged is connected to a rotating shaft 3 of the motor 2 through an installation shaft 7, the motor 2 is used for driving the movable knife assembly to reciprocate relative to the stationary knife assembly, and the dustproof, waterproof and foreign matter-preventing structure is arranged in the hair clipper body 1. According to the hair clipper, dust, flocks and the like can be effectively prevented from entering the motor at the positions of the fins 51 and the matching holes 4, when the head of the hair clipper is washed, the handle is lifted to extend the head for washing, and water can be effectively prevented from entering the motor at the positions of the fins 51 and the matching holes 4. Moreover, when the hair is cut, the hair cutter is close to the head, and the noise is low, so that the adverse effect of the noise on consumers is effectively reduced.

Claims

1. The utility model provides a structure of dustproof and waterproof foreign matter of preventing which characterized in that: including setting up mating holes (4) that can supply pivot (3) of motor (2) to stretch out on body (1) of small household electrical appliances to and set up in pivot (3) the outside of motor (2) and can with pivot (3) coaxial rotation's soft gum cover (5), be equipped with a plurality of rings of annular fin (51) on soft gum cover (5), thereby fin (51) cooperate with mating holes (4) and block the foreign object from one side that mating holes (4) got into motor (2) place.

2. The structure of claim 1, wherein: the fins (51) are tapered outward from the side close to the motor (2).

3. The structure of claim 2, wherein: the fins (51) are in interference fit with the matching holes (4).

4. The structure of any one of claims 1 to 3, which is characterized in that: the fin (51) is positioned in the middle of the depth direction of the matching hole (4) and is completely arranged in the matching hole (4).

5. The structure of any one of claims 1 to 3, which is characterized in that: the matching hole (4) is formed by a sleeve (6), and the sleeve (6) is of an integrally formed circular ring structure.

6. The structure of any one of claims 1 to 3, which is characterized in that: the matching hole (4) is formed by combining an upper shell (11) and a lower shell (12) of the product body (1).

7. The structure of any one of claims 1 to 3, which is characterized in that: be equipped with installation axle (7) between soft gum cover (5) and pivot (3), installation axle (7) are used for with pivot (3) fixed connection, install on installation axle (7) soft gum cover (5).

8. The structure of claim 7, wherein: the side of installation axle (7) is equipped with annular groove (71) of a round indent, soft gum cover (5) card is in annular groove (71) and the cover is tight on installation axle (7), annular groove (71) restriction soft gum cover (5) are deviate from installation axle (7) from the axial.

9. The structure of any one of claims 1 to 3, which is characterized in that: the soft rubber sleeve (5) is a silica gel sleeve or a rubber sleeve.

10. The utility model provides a hair clipper, includes body (1) of hair clipper to and quiet sword subassembly, move sword subassembly and motor (2), motor (2) are used for the drive to move the relative quiet sword subassembly of sword subassembly and do reciprocating motion, its characterized in that: the body (1) is provided with a structure for preventing dust, water and foreign matters according to any one of claims 1 to 9.