CN214083655U - Pencil sharpener - Google Patents

Abstract

The utility model discloses a novel pencil sharpener, which comprises a housin, toper on the casing is cut a hole and a blade, it sets up the chip removal mouth on the hole perisporium to cut, chip removal mouth one side cell wall top sets up the blade, this pencil sharpener improves the structure, cut a hole perisporium with the part of chip removal mouth one side as the movable wall, and with the protruding stupefied spacing of chip removal mouth cell wall bottom, stretch into the protruding stupefied spacing finger that can of cutting in the hole if the student mistake with the finger, avoid its touching blade, and when cutting, the pencil is inserted to the application of force, pencil perisporium butt is stupefied, continue the application of force and can order about the activity portion upwarp to pencil perisporium contact blade, it can to change a pen, the modern design, the structure is simplified, high durability and convenient use, and protective effect are possessed.

Description

Pencil sharpener

Technical Field

The utility model relates to a study article technical field, concretely relates to novel pencil sharpener.

Background

The pencil sharpener is a commonly used school supply, and the common manual pencil sharpener has the general structure that: the pencil sharpener with the cover is hinged or slides, on one hand, the structural complexity is increased, on the other hand, the pencil sharpener is complex to use and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical defect, the utility model provides a following technical scheme:

the application document discloses a novel pencil sharpener, which comprises a shell, a tapered pencil sharpening hole and a blade on the shell, wherein a pencil sharpening hole is formed in the peripheral wall of the pencil sharpening hole, the blade is arranged at the top end of the groove wall on one side of the pencil sharpening hole, a movable space is reserved outside the peripheral wall of the pencil sharpening hole on the other side of the pencil sharpening hole in part where the groove wall is located, at least one end of the head end and the tail end of the peripheral wall of the pencil sharpening hole is not in contact with the shell, a convex edge is arranged at the bottom end of the groove wall on the side, a pencil sharpening hole is inserted into the end of the pencil by applying force, the abutting convex edge of the peripheral wall of the pencil is moved upwards to be flush with the blade edge part of the blade, and the pencil sharpening is rotated.

This pencil sharpener improves structure, it is the movable wall to cut a hole perisporium with the part of chip removal mouth one side, and it is spacing with the protruding stupefied of chip removal mouth cell wall bottom, stretch into the spacing finger of stupefied meeting in cutting a hole with the finger like the student mistake, avoid its touching blade, and when cutting a pencil, the pencil is inserted to the application of force, pencil perisporium butt protruding stupefied, continue the application of force and can order about the movable part upwarp to pencil perisporium contact blade, change a pencil can, the modern design, the structure is simplified, high durability and convenient use, and the pencil sharpener has a protective action.

The shape of the shell, the fixation of the blade and the forming of the pencil sharpening hole can be selected according to the requirements, and the pencil sharpener mainly forms a movable wall on the hole wall opposite to the blade and on the other side of the chip removing opening and is matched with the convex edge to play a role in protection.

For example, in order to improve the flexibility of the movable wall, two ends of the peripheral wall of a part of the pencil sharpening hole where the groove wall on the other side of the chip removal port is located are not contacted with the shell, so that the movement of the peripheral wall of the part can be further facilitated.

Preferably, the peripheral wall of the pencil sharpening hole in the part where the groove wall on the other side of the chip removing opening is located is thin-walled.

Or the pencil sharpener body has the structure that the shell is fixed with one side of the hollow conical cylinder, the pencil sharpening hole is arranged in the cavity of the conical cylinder, the upper opening of the peripheral wall of the conical cylinder forms a chip removal port, the top end of the groove wall at one side of the chip removal port is provided with the blade, and the bottom end of the groove wall at the other side is provided with the convex edge, so that the pencil sharpener is simplified in structure and convenient to use, and fingers are prevented from being inserted into the pencil sharpener body to scratch.

The fixing of the shell and the conical barrel is preferably integrally formed by injection molding, and the fixing of the convex edge and the conical barrel is preferably integrally formed.

The fixing of the blade is preferably realized by screw fastening, and the modes of gluing, slotting and clamping, insert injection molding of the blade and the like can also be adopted.

Or the specific structure is that the shell is in a frame shape, a hollow conical cylinder is arranged in the frame, two ends of the conical cylinder are fixed with the shell, a pencil sharpening hole is arranged in a cavity of the conical cylinder, an upper opening of the peripheral wall of the conical cylinder forms a chip removal port, a blade is arranged at the top end of the groove wall at one side of the chip removal port, grooves are formed at the head end and the tail end of the partial cylinder wall where the groove wall at the other side of the chip removal port is located, the grooves are disconnected with the shell, and the bottom end of the groove wall at the side is provided with a convex ridge, so that the stability of the structure is improved.

Preferably, the middle positions of two sides of the outer peripheral wall of the conical cylinder are fixedly connected with the shell, the middle part of the cylinder wall above the connecting position forms a chip removal port along a bus opening, and for example, the peripheral wall of the pencil sharpening hole at the part where the other side of the groove wall of the chip removal port is located occupies 1/5-1/4 of the peripheral wall of the pencil sharpening hole.

Preferably, a groove is formed at the opening of the tail end of the conical barrel, such as a groove formed directly at the lower part of the opening of the tail end of the conical barrel, or a groove is formed on the shell and used for containing scraps, such as pencil lead scraps.

The width of the chip removal opening is preferably 0.5mm-1.5mm, so that the chip removal opening is better protected.

Furthermore, the groove wall of the other side of the chip removal port is higher than the blade, and when the fingers of a student are pressed by mistake from the outer side, the protruded groove wall also plays a limiting role, so that scratching is avoided.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the pencil sharpener is redesigned, simplifies the structure, is convenient to use and has the protection effect.

Drawings

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

FIG. 1 is a structural view A of the present sharpener in example 1;

FIG. 2 is a structural view B of the present sharpener in example 1;

FIG. 3 is a structural view of a sharpener in example 1;

FIG. 4 is an exploded view of the sharpener in example 1;

FIG. 5 is a structural view of a sharpener in embodiment 2;

wherein the reference numerals are:

1. a housing; 2. a blade; 3. cutting a pen hole; 4. a tapered barrel; 5. a groove; 6. a groove; 7. a chip removal port; 8. convex edges; 9. a movable wall.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Example 1

Referring to fig. 1-4, the novel pencil sharpener in this embodiment comprises a housing 1, a tapered pencil sharpening hole 3 and a blade 2, wherein the housing is a trapezoidal frame, a hollow tapered barrel is fixed in the middle of the housing along the axial direction, two ends of the tapered barrel 4 are fixed with the housing frame, a pencil sharpening hole is arranged in a cavity of the tapered barrel, a scrap removal port 7 is formed on the peripheral wall of the top of the tapered barrel along a bus opening, the blade is fastened by a screw at the top end of the slot wall on one side of the scrap removal port, the blade is opposite to the blade, a part of the slot wall on the other side of the scrap removal port is disconnected from the housing frame by a slot 5 at the head end and the tail end of the slot wall to form a movable wall 9, a gap reserved between the back of the movable wall and the frame forms a movable space, when the movable wall is pressed or tilted upwards, a protruding edge 8 is fixed on the movable wall corresponding to the bottom end of the scrap removal port, when the pencil sharpener is used, when the pencil is inserted into the pencil sharpening hole, the peripheral wall of the pencil is abutted against the protruding edge, the movable wall can be tilted upwards to a position flush with the blade by continuous force application, and the pencil can be cut by rotation.

The conical cylinder and the frame of the shell are preferably integrally formed, such as injection molding direct forming, and the conical cylinder and the convex edge are also integrally formed.

In order to improve the stability, in the forming process, the middle positions of two sides of the peripheral wall of the conical cylinder are connected with the shell frame, under the structure, the connection between the conical cylinder and the shell frame is stable, then a chip removal port is formed in the middle of the cylinder wall above the connection position along a bus opening, the width of the chip removal port is 0.5mm, 0.8mm, 1.0mm or 1.5mm, and the chip removal port is selected according to requirements, and in addition, the part of the peripheral wall of the pen hole, where the other side of the cylinder wall of the chip removal port is located, is preferably selected, namely, the movable wall approximately occupies 1/5-1/4 of the peripheral wall of the pen hole.

In order to conveniently contain the chips, the lower part of the tail end of the conical barrel is connected with the corresponding shell frame, a groove 6 is formed in the plate body formed by connection, in the process of rotating the pen, the pen core extends out of the opening of the tail end of the conical barrel, and the chips peeled off by rotation fall into the groove.

In another embodiment, the top end of the groove wall on the other side of the chip removal port is higher than the blade, so that the groove wall can also play a role in protection when external pressure is applied.

Example 2

The second configuration of the pencil sharpener is as shown in fig. 5, the right side of the cone barrel is fixed with the shell 1, if the cone barrel is integrally formed by injection molding, the middle part of the top end of the cone barrel forms a chip removal port along the opening of a bus, the top end of the top wall of the right side of the chip removal port is fixed with the blade 2 by a screw, the left side wall is a movable wall 9, and a convex edge is formed at the bottom end of the movable wall.

As for the width of the chip removal port, the height of the top end of the groove wall can be selected according to requirements.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. Novel pencil sharpener, including toper pencil sharpening hole and blade on casing, the casing, set up the chip removal mouth on the pencil sharpening hole perisporium, chip removal mouth one side cell wall top sets up blade, its characterized in that: a movable space is reserved outside the peripheral wall of a partial pencil sharpening hole where the groove wall on the other side of the chip removal port is located, at least one end of the head end and the tail end of the peripheral wall of the partial pencil sharpening hole is not in contact with the shell, a protruding ridge is arranged at the bottom end of the groove wall on the other side, force is applied to enable the end portion of a pencil to be inserted into the pencil sharpening hole, the peripheral wall of the pencil abuts against the protruding ridge and moves upwards to be flush with the edge portion of the blade, and the pencil sharpening is rotated.

2. The sharpener of claim 1 wherein: the head and tail ends of the peripheral wall of the pencil sharpening hole at the other side of the chip removing opening are not contacted with the shell.

3. The sharpener of claim 2 wherein: the peripheral wall of the pencil sharpening hole at the other side of the chip removing opening is thin-walled.

4. The sharpener of claim 1 wherein: the shell is fixed with one side of a hollow conical cylinder, a pen cutting hole is formed in the cavity of the conical cylinder, a chip removal port is formed in the upper opening of the peripheral wall of the conical cylinder, a blade is arranged at the top end of the groove wall on one side of the chip removal port, and a convex edge is arranged at the bottom end of the groove wall on the other side.

5. The sharpener of claim 1 wherein: the shell is in a frame shape, a hollow conical barrel is arranged in the frame, two ends of the conical barrel are fixed with the shell, a pencil sharpening hole is arranged in a cavity of the conical barrel, a chip removal port is formed in an upper opening of the peripheral wall of the conical barrel, a blade is arranged at the top end of a groove wall on one side of the chip removal port, grooves are formed in the head end and the tail end of a part of the barrel wall where the groove wall on the other side of the chip removal port is located, the groove is disconnected with the shell, and a protruding ridge is arranged at the bottom end of the groove wall on the side.

6. The sharpener of claim 5 wherein: the middle parts of two sides of the outer wall of the conical cylinder are fixedly connected with the shell, and the middle part of the cylinder wall above the connecting position forms a chip removal port along a bus opening.

7. The sharpener of claim 5 wherein: and a groove is arranged at the opening of the tail end of the conical barrel.

8. The sharpener of claim 1 wherein: the width of the chip removal port is 0.5mm-1.5 mm.

9. The sharpener of any one of claims 1-8 wherein: the groove wall at the other side of the chip removal port is higher than the blade.

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