CN219947724U

CN219947724U - Sharpening-free pencil

Info

Publication number: CN219947724U
Application number: CN202223586044.6U
Authority: CN
Inventors: 张义杰
Original assignee: Taicang Zhetaitian Product Design Co Ltd
Current assignee: Taicang Zhetaitian Product Design Co Ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-11-03
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses a sharpening-free pencil which comprises a pencil holder, a pencil core clamping cap and a pencil core, wherein the lower end of the pencil holder is provided with a mounting part, the end part of the mounting part is axially concavely provided with a mounting cavity, the pencil core is mounted in the mounting cavity, one end of the pencil core protrudes out of the mounting cavity, and the pencil core clamping cap is connected with the mounting part; wherein, the refill clamp cap comprises a conical part and a straight cylinder part. The utility model has simple structure and convenient use, controls the pollution of the pen core in the production process, and is convenient for recycling; meanwhile, the waste of wood and pen cores in the using process is avoided, and meanwhile, the use of peripheral accessories such as a pencil sharpener and the like is reduced; the use of materials such as wood, plastic, metal and the like can be greatly reduced, the environment is protected, the use process is free from being cut, and the use is cleaner and more sanitary.

Description

Sharpening-free pencil

Technical Field

The utility model relates to the field of stationery, in particular to a sharpening-free pencil.

Background

The pencil lead is formed by processing graphite and clay, and the outside of the pencil lead is wrapped by a wood material. When in use, the pencil sharpener is used for cutting the wrapping front end of the wood handle and cutting the pencil core head into a pointed end, thereby being convenient to use. In this process, since the pencil belongs to a consumable that must be used by students, especially pupil. The pencil also consumes a large number of pencil sharpener, the pencil sharpener is a mechanical structure which is easy to damage, the pencil sharpener is a relatively expensive cost for students each year, and causes waste, meanwhile, the shaved surplus pencil lead powder also contaminates the tabletop, fingers, books and the like, and part of the pencil lead powder is brought into human bodies through fingers, breath and the like, so that the pencil sharpener has certain harm to the health of the human bodies.

In addition, a fine-tipped mechanical pencil. The mechanical pencil does not consume wood, and most of mechanical pencils are made of plastic, but the pencil lead is relatively slim and is easy to interrupt the pencil lead in the using process. Although the thick-tipped mechanical pencil is not easy to break, the pencil lead is required to be sharpened, and pollution and health hazard are still caused. Although sharpening-free pencils are currently available on the market. However, the prior sharpening-free pencil adopts a shorter pencil lead, and then wood, plastic, metal and the like are directly wrapped on the pencil lead to form a small pencil, and the small pencils are combined and connected in series again to form a pencil or are combined on a penholder. This pencil is also actually a large amount of wood, plastic, metal, etc. consumed, and is not environment-friendly.

Disclosure of Invention

Aiming at the defects existing in the prior art, the main purpose of the utility model is to overcome the defects of the prior art and disclose a sharpening-free pencil, which comprises a pencil holder, a pencil core clamping cap and a pencil core, wherein the lower end of the pencil holder is provided with a mounting part, the end part of the mounting part is axially concavely provided with a mounting cavity, the pencil core is mounted in the mounting cavity, one end of the pencil core protrudes out of the mounting cavity, and the pencil core clamping cap is connected with the mounting part; wherein, refill presss from both sides cap and includes circular cone portion and straight section of thick bamboo portion.

Further, the cartridge clamping cap is in threaded fit with the mounting portion.

Further, an inner thread is arranged on the inner wall of the straight cylinder part, and an outer thread is arranged on the mounting part.

Further, the pen core clamping cap is in buckling connection with the mounting part.

Further, the end portion of the mounting portion is provided with at least three clamping plates around the mounting cavity, gaps are arranged between adjacent clamping plates, a first inclined surface is arranged on the outer side of the end portion of the clamping plates, and a second inclined surface matched with the first inclined surface is arranged in the conical portion.

Further, the pen refill comprises a pen core rod, and a pointed end is arranged at the end of the pen core rod.

Further, the length of the pen core is smaller than 2cm.

Furthermore, the upper end surface of the pen holder is axially concavely provided with a containing cavity, and the pen core is stored in the containing cavity.

Further, the opening of the accommodating cavity is sealed by rubber.

The utility model has the beneficial effects that:

the utility model has simple structure and convenient use, controls the pollution of the pen core in the production process, and is convenient for recycling; meanwhile, the waste of wood and pen cores in the using process is avoided, and meanwhile, the use of peripheral accessories such as a pencil sharpener and the like is reduced; the use of materials such as wood, plastic, metal and the like can be greatly reduced, the environment is protected, the use process is free from being cut, and the use is cleaner and more sanitary.

Drawings

FIG. 1 is a schematic perspective view of a sharpening-free pencil of the present utility model;

fig. 2 is a schematic perspective view of a barrel;

FIG. 3 is an enlarged view of FIG. 2A;

fig. 4 is a schematic perspective view of a cartridge clip cap;

fig. 5 is a schematic perspective view of a cartridge;

FIG. 6 is a cross-sectional view of a free-sharpening pencil of the present utility model;

fig. 7 is a schematic view of a snap connection structure of the cartridge clip cap and the mounting portion;

FIG. 8 is an enlarged view of B in FIG. 7;

FIG. 9 is a schematic view of another sharpening-free pencil;

the reference numerals are as follows:

1. the pen comprises a pen holder, 2, a pen core clamping cap, 3, a pen core, 4, a mounting part, 5, a rubber, 11, a containing cavity, 21, a conical part, 22, a straight barrel part, 23, a buckle, 31, a pen core rod, 32, a pointed end, 41, a mounting cavity, 42, a clamping edge, 43, a clamping plate, 44, a first inclined plane, 45 and external threads.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

1-9, the pencil comprises a pencil holder 1, a pencil core clamping cap 2 and a pencil core 3, wherein the lower end of the pencil holder 1 is provided with a mounting part 4, the end part of the mounting part 4 is axially concavely provided with a mounting cavity 41, the pencil core 3 is mounted in the mounting cavity 41, one end of the pencil core 3 protrudes out of the mounting cavity 41, and the pencil core clamping cap 2 is connected with the mounting part 4; wherein the cartridge holder cap 3 includes a conical portion 21 and a straight cylindrical portion 22. Wherein, the outer wall of the conical part 21 is conical, which is convenient for a writer to hold; the straight barrel 22 has the same structure as the barrel 1. The cartridge holder cap 3 is provided with a cavity for accommodating the mounting portion 4 therein, and a through hole for allowing the cartridge 3 to pass therethrough is provided at the tip of the conical portion 21, and the cartridge 3 passes through the through hole of the cartridge holder cap 3 and protrudes from the cartridge holder cap 3.

In one embodiment, as shown in fig. 1 to 9, the cartridge holder cap 2 is screw-fitted with the mounting portion 4. Specifically, an inner wall of the straight tube portion 22 is provided with an internal thread, and an outer wall of the mounting portion 4 is provided with an external thread 45; the cartridge holder cap 2 is then attached to the attachment portion 4 by rotating the cartridge holder cap 2.

In another embodiment, as shown in fig. 1-9, the cartridge clip cap 2 is connected with the mounting part 4 by a buckle; specifically, the mounting portion 4 may be provided with a clamping edge 42, and correspondingly, a matched buckle 23 is provided on the inner wall of the straight barrel portion 22 of the pen core clamping cap 2; during installation, the pen core clamping cap 2 is sleeved on the installation part 4, and is matched with the clamping edge 42 through the buckle, so that the pen core clamping cap 2 is linked with the installation part 4.

In one embodiment, as shown in fig. 1-9, the end of the mounting portion 4 is provided with at least three clamping plates 43 around the mounting cavity 41, with gaps between adjacent clamping plates 43, the outer side of the end of the clamping plates 43 is provided with a first inclined surface 44, and the conical portion 21 is provided with a second inclined surface cooperating with the first inclined surface 44. After the pen core clamping cap 2 is sleeved on the mounting part 4, the pen core clamping cap 2 is driven to axially move upwards, and the first inclined surface 44 is matched with the second inclined surface, so that the overtime 43 is converged inwards, the size of the mounting cavity 41 is reduced, and clamping and fixing of the pen core 3 are realized.

In another embodiment, as shown in fig. 1-9, no gap is provided between the clamping plates 43, each clamping plate 43 forms a surrounding integral structure, a mounting cavity 41 is formed, and the mounting cavity 41 is tightly matched with the pen core 3, so that the function of fixing the pen core 3 is achieved.

In one embodiment, as shown in fig. 1 to 9, the cartridge 3 includes a cartridge rod 31, and a tip 32 is provided at an end of the cartridge rod 31. Preferably, the two ends of the pen core rod 31 are provided with the pointed ends 32, so that the service life of the pen core 3 is prolonged, and the resource waste is reduced.

In one embodiment, as shown in fig. 1-9, the length of the cartridge is less than 2cm. Typically, the length of the cartridge 3 is greater than 1.5cm.

In one embodiment, as shown in fig. 1-9, the upper end surface of the pen holder 1 is axially concaved with a receiving cavity 11, and the cartridge 3 is stored in the receiving cavity 11. Thereby facilitating the storage and timely replacement of the pen refill 3.

In one embodiment, as shown in fig. 1-9, the opening of the receiving chamber 11 is sealed by the rubber 5. First, the rubber 5 can be modified at the time of writing errors. Secondly, the rubber has better toughness, can be fine seal the chamber 11 opening of holding, and be difficult for dropping.

In one embodiment, as shown in fig. 1-9, the barrel 1 includes, but is not limited to, a diamond-shaped structure, a circular structure.

The foregoing is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model; modifications and equivalent substitutions are intended to be included in the scope of the claims without departing from the spirit and scope of the present utility model.

Claims

1. The pencil is characterized by comprising a pencil holder, a pencil core clamping cap and a pencil core, wherein the lower end of the pencil holder is provided with a mounting part, the end part of the mounting part is axially concavely provided with a mounting cavity, the pencil core is mounted in the mounting cavity, one end of the pencil core protrudes out of the mounting cavity, and the pencil core clamping cap is connected with the mounting part; wherein, refill presss from both sides cap and includes circular cone portion and straight section of thick bamboo portion.

2. The free-sharpening pencil of claim 1, wherein the pencil lead clamping cap is threadedly engaged with the mounting portion.

3. The pencil of claim 2 wherein the inner wall of the barrel portion is internally threaded and the mounting portion is externally threaded.

4. The free-sharpening pencil of claim 1, wherein the pencil lead clamping cap is snap-fit with the mounting portion.

5. The pencil of claim 1, wherein the end of the mounting portion is provided with at least three clamping plates around the mounting cavity, and a gap is provided between adjacent clamping plates, a first inclined surface is provided on the outer side of the end of the clamping plates, and a second inclined surface is provided in the conical portion, the second inclined surface being engaged with the first inclined surface.

6. The free-sharpening pencil of claim 1, wherein the pencil lead comprises a pencil core having a tip disposed at an end thereof.

7. The free-sharpening pencil of claim 1, wherein the length of the pencil lead is less than 2cm.

8. The sharpening-free pencil of claim 1, wherein the upper end surface of the pencil holder is axially concaved with a receiving cavity, and the pencil lead is stored in the receiving cavity.

9. The free-sharpening pencil of claim 8, wherein the opening of the receiving cavity is sealed by rubber.