CN208615594U

CN208615594U - A kind of no screw pencil sharpener

Info

Publication number: CN208615594U
Application number: CN201821098156.8U
Authority: CN
Inventors: 赵崇标
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-11
Filing date: 2018-07-11
Publication date: 2019-03-19
Anticipated expiration: 2028-07-11

Abstract

The utility model discloses a kind of no screw pencil sharpeners, including knife rest and cut a portion, a portion is cut to be arranged in knife rest, knife rest is the different cuboid knife rest of both ends height, cut a portion include be provided with knife rest top surface cut a slot, a slot is cut to be arranged along knife rest length direction, it cuts and is provided with blade on a slot, blade is integrally formed by injection molding and knife rest, it cuts a slot lower end and is provided with accommodating chamber and flute, it is molded by injection molding machine and blade is fixed on pencil sharpener, blade is coated 80% or so by knife rest when injection molding, it does not need to be screwed again between pencil sharpener and blade, it is low to the size tolerance requirements of blade, integrally formed injection structure is simple, reduce production cost, energy conservation and environmental protection is realized simultaneously.

Description

A kind of no screw pencil sharpener

Technical field

The utility model relates to field of stationery, in particular to a kind of no screw pencil sharpener.

Background technique

Pencil sharpener is a kind of common tool to sharpen a pencil of student, and when the 17th century, people are only sharpened a pencil with knife, With the development of the society, people need to use more pencils, so that the efficiency to sharpen a pencil is also had higher requirement, it is mechanical The pencil sharpener of principle is seasonable and gives birth to, the bellmouth for generally comprising shell and being arranged on shell, and one is provided on bellmouth Pen is used to cut pen by a blade for sharpening a pencil in face of the rotation of the blade direction of blade.

Type is many but generally existing the disadvantage is that need artificial or machine blades and screw on the market at present, causes Structure is complicated, high production cost, and conventional pencil sharpener is only applicable in the blade of 0.05mm width tolerance range, the public affairs of blade width Difference is more demanding.

Utility model content

For the deficiencies in the prior art, the purpose of this utility model is to provide one kind to fix without screw, tie Structure is simple and the low no screw pencil sharpener of blade size tolerance.

The technical issues of the utility model solves can be realized using following technical scheme:

A kind of no screw pencil sharpener, including knife rest and a portion of cutting, a portion of cutting are arranged in knife rest；

The knife rest is the different cuboid knife rest of both ends height, and knife rest is hollow structure and bottom surface is provided with opening, The two sides of knife rest are provided with several grooves, and the height of groove increases, groove with the raising of the two sides height of knife rest Setting improve grab the pencil sharpener convenience, groove is oval-shaped groove, improve human finger contacted just with knife rest Benefit facilitates simultaneously grabs the pencil sharpener；

It is described cut a portion include be provided with knife rest top surface cut a slot, cut a slot and be arranged along knife rest length direction, cut a slot On be provided with blade, the length of blade is less than the length for cutting a slot, and blade is integrally formed by injection molding and knife rest, cuts a slot lower end It is provided with accommodating chamber and flute, accommodating chamber is the big truncated cone accommodating chamber in the small bottom end in top, and flute is that upper and lower ends are equal Top end opening for the hollow structure of opening, accommodating chamber is connected with flute, when being cut using the pencil sharpener, pencil Pen tip be easy to happen fracture, by the setting of accommodating chamber top flute, facilitate bottom of the pencil-lead of fracture from flute Discharge, the top for avoiding the pen core for occurring being broken such as traditional pencil sharpener from being stuck in accommodating chamber can not take out and cause pencil sharper roll up Effect is bad, and the bottom end opening of accommodating chamber is connected to the outer wall of knife rest, and the top two sides for cutting a slot are fixedly installed reinforcing rib, The other end of reinforcing rib is fixedly connected with the inner wall of knife rest respectively.

When production, blade is placed into the mold without screw pencil sharpener by manually or mechanically hand, which puts The both ends for setting blade are designed as coating on blade 80% or so clad structure, while being located in mold by knife-edge leading end part Type is intracavitary, after having placed blade, is molded by injection molding machine and blade is fixed on pencil sharpener, do not needed between pencil sharpener and blade It is screwed again, low to the size tolerance requirements of blade, integrally formed injection structure is simple, production cost is reduced, Energy conservation and environmental protection is realized simultaneously.

It is above-mentioned without screw pencil sharpener, be provided with anti-slip layer on the groove, while the setting of anti-slip layer plays crawl The effect that rubber sleeve is prevented when the pencil sharpener improves the skid resistance of the pencil sharpener.

It is above-mentioned without screw pencil sharpener, a slot of cutting includes first part and second part, first part and accommodating chamber Match and be rectangle structure, second part is the structure to match with flute.

Above-mentioned without screw pencil sharpener, the bottom end of the accommodating chamber is additionally provided with the adapter cavity of truncated cone-shaped, adapter cavity and holds Chamber of receiving is connected, and the placement of the setting Convenient pencil of adapter cavity improves stability when pencil sharpener is cut.

It is above-mentioned that without screw pencil sharpener, flute outer surrounding is provided with baffle, be provided on baffle opening with Accommodating chamber top is connected, and baffle is fixed at the bottom of knife rest top surface.

Blade is fixed on pencil sharpener the beneficial effects of the utility model are: being molded by injection molding machine, knife rest when injection molding Blade is coated 80% or so, does not need to be screwed again between pencil sharpener and blade, to the size tolerance requirements of blade Low, integrally formed injection structure is simple, reduces production cost, while realizing energy conservation and environmental protection, and the setting of groove improves The convenience of the pencil sharpener is grabbed, the setting of anti-slip layer improves the skid resistance of the pencil sharpener, the mistake of the bottom end setting of accommodating chamber It crosses chamber to be connected with accommodating chamber, the placement of Convenient pencil improves stability when pencil sharpener is cut.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model upper surface；

Fig. 2 is the structural schematic diagram of the utility model lower end surface；

Fig. 3 is the cross-sectional view of the utility model transverse direction；

Fig. 4 is the cross-sectional view of the utility model longitudinal direction.

Specific embodiment

By make the structure feature to the utility model and the effect of being reached have it is further understand and understanding, to compared with Good examples and drawings cooperate detailed description, are described as follows:

As shown in Figure 1,2,3, 4,

A kind of no screw pencil sharpener, including knife rest 1 and a portion of cutting, a portion of cutting are arranged in knife rest；

The knife rest 1 is the different cuboid knife rest of both ends height, and knife rest is hollow structure and bottom surface is provided with opening 11, the two sides of knife rest are provided with several grooves 12, and the height of groove is increased with the raising of the two sides height of knife rest, The setting of groove improves the convenience for grabbing the pencil sharpener, and groove is oval-shaped groove, improves human finger and contacts with knife rest Convenience simultaneously facilitate grab the pencil sharpener；

It is described cut a portion include be provided with knife rest top surface cut a slot 21, cut a slot along the setting of knife rest length direction and (cut pen Pencil chip is discharged from cutting above slot in the process), it cuts and is provided with blade 22 on a slot, the length of blade is less than the length for cutting a slot Degree, blade 22 are integrally formed by injection molding and knife rest, are cut a slot lower end and are provided with accommodating chamber 23 and flute 24, accommodating chamber is top The truncated cone accommodating chamber that small bottom end is big is held, flute is the hollow structure that upper and lower ends are opening, and the top of accommodating chamber is opened Mouthful it is connected with flute, when being cut using the pencil sharpener, the pen tip of pencil is easy to happen fracture, passes through accommodating chamber top The setting for holding flute facilitates the pencil-lead of fracture to be discharged from the bottom of flute, the pencil sharpener as traditional is avoided to be broken Pen core be stuck in accommodating chamber top can not take out and cause pencil sharper roll up effect it is bad, the bottom end opening and knife rest of accommodating chamber Outer wall connection, the top two sides for cutting a slot are fixedly installed reinforcing rib 25, and the other end of reinforcing rib is respectively and in knife rest Wall is fixedly connected.

In the present invention, anti-slip layer is provided on the groove, while the setting of anti-slip layer plays and grabs the volume The effect that rubber sleeve is prevented when graver improves the skid resistance of the pencil sharpener.

A slot of cutting includes first part and second part, and first part and accommodating chamber match and be rectangle knot Structure, second part are the structure to match with flute.

The bottom end of the accommodating chamber is additionally provided with the adapter cavity 26 of truncated cone-shaped as a further improvement of the utility model, Adapter cavity is connected with accommodating chamber, and the placement of the setting Convenient pencil of adapter cavity improves stability when pencil sharpener is cut.

Flute outer surrounding is provided with baffle 241, and opening is provided on baffle and is connected with accommodating chamber top, And baffle is fixed at the bottom of knife rest top surface.

It is molded by injection molding machine and blade is fixed on pencil sharpener, blade is coated 80% or so by knife rest when injection molding, rolls up pen It does not need to be screwed again between knife and blade, integrally formed injection structure letter low to the size tolerance requirements of blade It is single, production cost is reduced, while realizing energy conservation and environmental protection, the setting of groove improves the convenience for grabbing the pencil sharpener, prevents The setting of slip layer improves the skid resistance of the pencil sharpener, and the adapter cavity of the bottom end setting of accommodating chamber is connected with accommodating chamber, convenient The placement of pencil improves stability when pencil sharpener is cut.

Basic principles, main features, and advantages of the present invention has been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model Kind changes and improvements, these changes and improvements are both fallen in the range of claimed invention.The requires of the utility model Protection scope defined by appended claims and its equivalent.

Claims

1. a kind of no screw pencil sharpener, including knife rest and a portion of cutting, a portion of cutting are arranged in knife rest；

It is characterized in that,

The knife rest is the different cuboid knife rest of both ends height, and knife rest is hollow structure and bottom surface is provided with opening, knife rest Two sides be provided with several grooves, the height of groove is increased with the raising of the two sides height of knife rest, groove be it is ellipse Circular groove；

It is described cut a portion include be provided with knife rest top surface cut a slot, cut a slot and be arranged along knife rest length direction, cut and set on a slot It is equipped with blade, the length of blade is less than the length for cutting a slot, and blade is integrally formed by injection molding and knife rest, cuts a slot lower end setting There are accommodating chamber and flute, accommodating chamber is the big truncated cone accommodating chamber in the small bottom end in top, and flute is that upper and lower ends are out The hollow structure of mouth, the top end opening of accommodating chamber are connected with flute, and the bottom end opening of accommodating chamber is connected to the outer wall of knife rest, The top two sides for cutting a slot are fixedly installed reinforcing rib, and the other end of reinforcing rib is fixedly connected with the inner wall of knife rest respectively.

2. no screw pencil sharpener according to claim 1, which is characterized in that be provided with anti-slip layer on the groove.

3. no screw pencil sharpener according to claim 1, which is characterized in that a slot of cutting includes first part and second Part, first part and accommodating chamber match and are rectangle structure, and second part is the structure to match with flute.

4. no screw pencil sharpener according to claim 1, which is characterized in that the bottom end of the accommodating chamber is additionally provided with rotary table The adapter cavity of shape, adapter cavity are connected with accommodating chamber.

5. no screw pencil sharpener according to claim 1, which is characterized in that flute outer surrounding is provided with gear Plate is provided with opening on baffle and is connected with accommodating chamber top, and baffle is fixed at the bottom of knife rest top surface.