Single-blade double-end pencil sharpener and multifunctional eraser with same

Abstract

The single-blade double-end pencil sharpener comprises a pencil sharpening seat, the pencil sharpening seat is provided with an obliquely arranged blade, the included angle between the blade and the horizontal direction is smaller than 45 degrees, and the pencil sharpening seat forms a scrap storage bin above the blade; a first pencil sharpening hole and a second pencil sharpening hole which are in a conical hole shape are formed in the pencil sharpening base and located below the blade. The first pencil sharpening hole and the second pencil sharpening hole are partially expanded to form a cutting adjusting bin. The taper of the first pencil sharpening hole ranges from 0.8 to 0.9, and the taper of the second pencil sharpening hole ranges from 0.70 to 0.76. When the pencil sharpener uses one blade, two different pencil sharpening positions are arranged, the pencil sharpener is suitable for pencil sharpening holes for cutting different types of pencil refills, and the blade is obliquely arranged, so that cutting is convenient. And the cutting adjusting bin is arranged, so that the pencil tip has a certain adjusting angle during cutting, and the pencil lead can be prevented from being easily cut off due to hard support (hole wall). On the basis of an eraser, the multifunctional eraser is additionally provided with a double-end pencil sharpener and a roller scrap collecting function.

Description

Technical Field

[0001] The utility model relates to the technical field of school supplies, in particular to a pencil sharpener. Background Art

[0002] A pencil sharpener is a tool for sharpening pencils, and can be made into various shapes. The pencil sharpener series is made of high-quality plastic, with a stylish and exquisite shape, and can be used as a decoration. The products have designs such as train shape, kitten shape, house shape, etc. The colors are rich and colorful: red, yellow, blue, pink, etc. Pencil sharpeners are essential stationery for primary school students. Pencil sharpeners generally have two styles of single-hole and double-hole designs, and the blade is sharp.

[0003] Currently, there is a lack of a single-blade double-head pencil sharpener on the market that can sharpen both ordinary pencils and automatic pencils with lead cores (such as 2.0 mm lead cores, etc.).

[0004] In addition, the lead core of a traditional pencil sharpener is prone to breakage during the pencil sharpening process.

[0005] In view of this, the inventor of this case conducted in-depth research, which resulted in the creation of this case. Utility Model Content

[0006] The utility model aims to provide a single-blade double-head pencil sharpener which can sharpen both common pencils and lead cores (such as 2.0 mm lead cores) of automatic pencils and is not prone to lead breakage.

[0007] In order to achieve the above purpose, the technical solution of the utility model is:

[0008] A single-blade double-head pencil sharpener, comprising a pencil sharpener seat, the pencil sharpener seat being provided with a blade, the blade being arranged at an angle, the angle between the blade and the horizontal direction being less than 45°; the pencil sharpener seat forming a concave structure above the blade, which is a scrap storage bin;

[0009] The pencil sharpener is formed with a first pencil sharpener hole and a second pencil sharpener hole in a conical hole shape below the blade, wherein the first pencil sharpener hole includes a first pencil sharpener cutting hole section for cutting the lead of an automatic pencil and a supporting hole section for supporting the lead shell of the automatic pencil, and the second pencil sharpener hole includes a second pencil sharpener cutting hole section for cutting the lead of an ordinary pencil and a wood cutting hole section for cutting the wood part of an ordinary pencil;

[0010] The first pencil-rolling hole and the second pencil-rolling hole are arranged opposite to each other, the first pencil core cutting hole section is formed by expanding and extending the corresponding conical hole section, and the second pencil core cutting hole section is formed by expanding and extending the corresponding conical hole section, the first pencil core cutting hole section and the second pencil core cutting hole section are connected to form a cutting adjustment bin, and the cutting adjustment bin is connected to the chip storage bin;

[0011] The taper of the first pencil sharpener hole is 0.8-0.9, the taper of the second pencil sharpener hole is 0.70-0.76, and the aperture of the second pencil sharpener hole is larger than the aperture of the first pencil sharpener hole.

[0012] Furthermore, the radius of the first pencil sharpener hole is 3.2 mm, the hole depth of the first pencil sharpener hole is 7.5 mm, and the taper of the first pencil sharpener hole is 0.85; the radius of the second pencil sharpener hole is 8.2 mm, the hole depth of the first pencil sharpener hole is 22.5, and the taper of the second pencil sharpener hole is 0.73.

[0013] Furthermore, the first pencil sharpening hole is a pencil sharpening hole for cutting automatic pencils with a lead of 2.0 mm to 3.2 mm; and the second pencil sharpening hole is a pencil sharpening hole for cutting ordinary wooden pencils.

[0014] Furthermore, the length of the blade is 22 mm to 26 mm, and the intersection of the first pencil sharpener hole and the second pencil sharpener hole is located at a position of 1 / 6 of the length of the blade.

[0015] Furthermore, the central axis of the second pencil sharpener hole is located in the horizontal direction; and the angle between the central axis of the first pencil sharpener hole and the horizontal direction is 25° to 30°.

[0016] Furthermore, the angle between the blade and the horizontal direction is 10-13°, the angle between the central axis of the first pencil sharpener hole and the blade is 10-13°, and the angle between the central axis of the second pencil sharpener hole and the blade is 10-13°.

[0017] Furthermore, the cutting adjustment chamber is provided with an observation slot on one side wall or both side walls of the pencil sharpener along the width direction of the blade.

[0018] After adopting the above technical scheme, the utility model provides a single-blade double-head pencil sharpener, which has the following beneficial effects: when using one blade, two pencil sharpening positions with different structures are set, which are suitable for pencil sharpening holes for cutting different types of pencil leads. The first pencil sharpening hole can be suitable for cutting the lead of automatic pencils (such as 2.0mm~3.2mm lead), and the second pencil sharpening hole can be used for cutting ordinary wooden pencils. The blade is set to be inclined, which can facilitate the cutting operation. A cutting adjustment chamber is set at the position where the pencil lead is cut, and the cutting adjustment chamber not only has a certain adjustment angle at the core tip during cutting, but also can avoid the problem of easy cutting of the lead due to hard support (hole wall of the conical hole).

[0019] A multifunctional eraser comprises a main body, wherein the single-blade double-head pencil sharpener is arranged in the middle of the main body, and the main body is also provided with an eraser and a roller assembly for collecting scraps.

[0020] Further, the main body has two ends arranged opposite to each other, the eraser is arranged at one end of the main body, the roller assembly is arranged at the other end of the main body, and the single-blade double-head pencil sharpener is arranged between the eraser and the roller assembly;

[0021] The main body is provided with a flip cover corresponding to the chip storage bin, the flip cover is hinged to the main body in an openable or closable manner, and a closed space is formed between the chip storage bin and the flip cover.

[0022] Further, the roller assembly includes a roller and a scraper member, the scraper member includes a scraper group and mounting parts arranged at both ends of the scraper group, the axial ends of the roller are correspondingly mounted on the mounting parts, the peripheral side wall of the roller is arranged corresponding to the scraper group, the scraper group is located on one side of the roller, and the scraper group and the roller are arranged close to each other;

[0023] The scraper group includes a first scraper and a second scraper, a first strip hole is formed between the first scraper and the second scraper, the first strip hole is opened along the axial direction of the roller, two ends of the first strip hole extend respectively along the circumferential direction of the roller to form a second strip hole, and the first strip hole and the second strip hole together constitute a chip collecting hole;

[0024] The main body is provided with a chip collecting chamber corresponding to the roller assembly, the scraper member is connected to the main body in a detachable manner, and the chip collecting hole is communicated with the chip collecting chamber.

[0025] After adopting the above technical scheme, the utility model has the following beneficial effects: the utility model is a multifunctional eraser, which adds the functions of a double-head pencil sharpener and a roller chip collection on the basis of a traditional eraser. A flip cover is arranged in the chip storage bin to facilitate the collection of eraser chips.

[0026] When in use, the roller is used to adhere the rubber crumbs, and the scraper assembly is used to scrape the rubber crumbs on the surface of the roller assembly, and the scraped rubber passes through the crumb collecting hole into the crumb collecting chamber. When pouring out the rubber crumbs, just remove the scraper from the main body and then pour it out. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of the pencil sharpener of the utility model;

[0028] Figure 2 is a cross-sectional view of the pencil sharpener of the present utility model;

[0029] Figure 3 It is a cross-sectional view of the pencil sharpener of the utility model in the use state;

[0030] Figure 4It is a structural schematic diagram of the multifunctional eraser of the utility model;

[0031] Figure 5 The utility model is a schematic diagram of the exploded structure of the multifunctional eraser.

[0032] In the figure:

[0033] Cutting adjustment bin a; 2.0 mm automatic pencil b; ordinary wooden pencil c; pencil holder 1; blade 2; first pencil hole 3; first lead cutting hole section 31; support hole section 32; second pencil hole 4; second lead cutting hole section 41; wooden cutting hole section 42; observation slit 5; main body 6; chip collecting chamber 61; eraser 7; roller assembly 8; roller 81; scraper member 82; first scraper 821; second scraper 822; first strip hole 831; second strip hole 832; chip collecting hole 83; chip storage bin 9; flip cover 91. DETAILED DESCRIPTION

[0034] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.

[0035] Example 1

[0036] The utility model discloses a single-blade double-head pencil sharpener, such as Figure 1-Figure 3 As shown, the pen holder 1 includes a blade 2 mounted thereon. The blade 2 is tilted, and the angle between the blade 2 and the horizontal direction is less than 45°. In this embodiment, the angle between the blade 2 and the horizontal direction is 11°. The pen holder 1 forms a concave structure above the blade 2, which is a scrap storage bin 9.

[0037] The pencil holder 1 is provided with a first pencil sharpener hole 3 and a second pencil sharpener hole 4 in the shape of a conical hole below the blade. The first pencil sharpener hole 3 includes a first pencil sharpener cutting hole section 31 for cutting the lead of an automatic pencil, and a supporting hole section 32 for supporting the lead shell of an automatic pencil. When cutting, it is used to support the corresponding part of the pencil shell or the lead. The second pencil sharpener hole 4 includes a second pencil sharpener cutting hole section 41 for cutting the lead of an ordinary pencil, and a wood cutting hole section 42 for cutting the wood part of an ordinary pencil. The wood cutting hole section 42 is used to cut the wood part of an ordinary pencil and plays a supporting role.

[0038] The first pencil winding hole 3 and the second pencil winding hole 4 are arranged opposite to each other, the first pencil lead cutting hole section 31 is formed by expanding and extending the corresponding conical hole part, and the second pencil lead cutting hole section 41 is formed by expanding and extending the corresponding conical hole part, the first pencil lead cutting hole section 31 and the second pencil lead cutting hole section 41 are connected to form a cutting adjustment bin a, and the cutting adjustment bin a is connected to the chip storage bin 9.

[0039] The taper of the first pencil winding hole 3 is 0.8-0.9, and the taper of the second pencil winding hole 4 is 0.70-0.76, and the aperture of the second pencil winding hole 4 is larger than the aperture of the first pencil winding hole 3. The above taper refers to the ratio of the bottom diameter of the cone to the cone height (hole depth described below).

[0040] The utility model discloses a single-blade double-head pencil sharpener. When using one blade 2, two pencil sharpening positions with different structures are arranged. The pencil sharpening holes are suitable for cutting different types of pencil leads. The first pencil sharpening hole 3 can be used for cutting the lead of an automatic pencil b (such as a lead of 2.0 mm to 3.2 mm), and the second pencil sharpening hole 4 can be used for cutting an ordinary wooden pencil c. The blade 2 is arranged to be inclined, so that the cutting operation can be conveniently performed. A cutting adjustment chamber a is arranged at the position where the pencil lead is cut, and the cutting adjustment chamber a not only allows the lead tip to have a certain adjustment angle when cutting, but also avoids the problem of easy cutting of the lead due to hard support (hole wall of the conical hole).

[0041] Furthermore, the radius of the first pencil winding hole 3 (referring to the radius at the bottom of the conical hole, i.e., the maximum radius) is 3.2 mm, the hole depth of the first pencil winding hole 3 is 7.5 mm, and the taper of the first pencil winding hole 3 is 0.85; the radius of the second pencil winding hole 4 (referring to the radius at the bottom of the conical hole, i.e., the maximum radius) is 8.2 mm, the hole depth of the first pencil winding hole 3 is 22.5, and the taper of the second pencil winding hole 4 is 0.73;

[0042] The first pencil-rolling hole 3 is a pencil-rolling hole for cutting automatic pencils with a lead of 2.0 mm to 3.2 mm; the second pencil-rolling hole 4 is a pencil-rolling hole for cutting ordinary wooden pencils.

[0043] Furthermore, the length of the blade 2 is 24 mm, and the intersection of the first pencil sharpener hole 3 and the second pencil sharpener hole 4 is located at a position of 1 / 6 of the length of the blade 2. The setting of this position facilitates the completion of the corresponding cutting operation.

[0044] Furthermore, the central axis of the second pencil winding hole 4 is located in the horizontal direction.

[0045] Furthermore, the angle between the central axis of the first pen winding hole 3 and the horizontal direction is 25°-30° (specifically 28°).

[0046] Furthermore, the cutting and adjusting chamber a is provided with an observation slit 5 on one side wall or both side walls of the pencil holder 1 along the width direction of the blade 2 .

[0047] Furthermore, the angle between the central axis of the first pencil sharpener hole 3 and the blade 2 is 11°, and the angle between the central axis of the second pencil sharpener hole 4 and the blade 2 is 11°.

[0048] It should be noted that the hole size of the first pencil winding hole 3 of the utility model can be set according to the actual required size of the lead of the mechanical pencil, and is not limited here. Commonly, it can be designed to be suitable for cutting the lead of a mechanical pencil with a lead of 2.0mm to 3.2mm.

[0049] Example 2

[0050] A multifunctional eraser, such as Figure 4 and Figure 5 As shown, it comprises a main body 6, the middle part of which is provided with a single-blade double-head pencil sharpener as described in Example 1, and the main body 6 is also provided with an eraser 7 and a roller assembly 8 for collecting scraps.

[0051] Further, the main body 6 has two ends arranged opposite to each other, the eraser 7 is arranged at one end of the main body 6, the roller assembly is arranged at the other end of the main body 6, and the single-blade double-head pencil sharpener is arranged between the eraser 7 and the roller assembly 8. The eraser 7 is equipped with a protective cover, and the roller assembly 8 is equipped with a protective cover.

[0052] The main body 6 is provided with a flip cover 91 corresponding to the chip storage bin 9. The flip cover 91 is hinged to the main body 6 in an openable or closable manner. A closed space is formed between the chip storage bin 9 and the flip cover 91 to facilitate chip storage.

[0053] Furthermore, the roller assembly 8 includes a roller 81 and a scraper member 82, the scraper member 82 includes a scraper group and mounting parts arranged at both ends of the scraper group, the two axial ends of the roller 81 are movably mounted on the mounting parts, the peripheral side wall of the roller 81 is arranged corresponding to the scraper group, and the scraper group is located on one side of the roller and is arranged close to the roller 81. This makes it convenient to scrape rubber crumbs and the like adhered to the roller. The shape and size of the scraper group match the roller 81.

[0054] The scraper group includes a first scraper 821 and a second scraper 822, and a first strip hole 831 is formed between the first scraper 821 and the second scraper 822. The first strip hole 831 is opened along the axial direction of the roller 81, and the two ends of the first strip hole 831 extend along the circumferential direction of the roller 81 to form a second strip hole 832. The first strip hole 831 and the second strip hole 832 together constitute a chip collecting hole 83.

[0055] The main body 6 is provided with a chip collecting chamber 61 corresponding to the roller assembly 8 , the scraper member 82 is connected to the main body 6 in a detachable manner (specifically plug-in in this embodiment), and the chip collecting hole 83 is communicated with the chip collecting chamber 61 .

[0056] In the present invention, the roller 81 is a sticky tube, which can be made of TPE or silicone. When in use, the roller 81 is used to stick the rubber crumbs, and the scraper assembly is used to scrape the rubber crumbs on the surface of the roller assembly. The scraped rubber passes through the crumb collecting hole 83 and enters the crumb collecting chamber 61. When pouring out the rubber crumbs, it is only necessary to remove the scraper member 82 from the main body 6 and then pour it out.

[0057] It should be noted that the chip collecting hole 83 can be designed according to the size of the chips to be adhered, so as to achieve the corresponding function, and is not limited here.

[0058] The utility model is a multifunctional eraser, which is based on a traditional eraser, and has the functions of a double-head pencil sharpener and a roller chip collecting device. A flip cover 91 is arranged on a chip storage bin 9 to facilitate the collection of eraser chips.

[0059] The above embodiments and drawings do not limit the product form and style of the utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the utility model.

Claims

1. A single-blade double-ended pencil sharpener, characterized by: The utility model comprises a pen holder, wherein the pen holder is provided with a blade, wherein the blade is arranged obliquely, and the angle between the blade and the horizontal direction is less than 45 degrees; the pen holder forms a concave structure above the blade, which serves as a scrap storage bin; The pencil sharpener is formed with a first conical pencil sharpener hole and a second conical pencil sharpener hole below the blade. The first pencil sharpener hole includes a first lead cutting hole section for cutting the lead of an automatic pencil and a support hole section for supporting the lead shell of the automatic pencil. The second pencil sharpener hole includes a second lead cutting hole section for cutting the lead of an ordinary pencil and a wood cutting hole section for cutting the wood part of an ordinary pencil. The first pencil winding hole and the second pencil winding hole are arranged opposite to each other, the first pencil lead cutting hole section is formed by expanding and extending the corresponding conical hole section, and the second pencil lead cutting hole section is formed by expanding and extending the corresponding conical hole section, the first pencil lead cutting hole section and the second pencil lead cutting hole section are connected to form a cutting adjustment chamber, and the cutting adjustment chamber is connected to the chip storage chamber; The taper of the first pencil-winding hole is 0.8-0.9, the taper of the second pencil-winding hole is 0.70-0.76, and the aperture of the second pencil-winding hole is larger than that of the first pencil-winding hole.

2. A single-blade double-ended pencil sharpener according to claim 1, characterized in that: The radius of the first pencil winding hole is 3.2 mm, the hole depth of the first pencil winding hole is 7.5 mm, and the taper of the first pencil winding hole is 0.85; the radius of the second pencil winding hole is 8.2 mm, the hole depth of the first pencil winding hole is 22.5, and the taper of the second pencil winding hole is 0.

73.

3. A single-blade double-ended pencil sharpener according to claim 1, characterized in that: The first pencil sharpening hole is a pencil sharpening hole for cutting automatic pencils with a lead core of 2.0mm to 3.2mm; the second pencil sharpening hole is a pencil sharpening hole for cutting ordinary wooden pencils.

4. A single-blade double-ended pencil sharpener according to claim 1, characterized in that: The length of the blade is 22 mm to 26 mm, and the intersection of the first pencil sharpening hole and the second pencil sharpening hole is located at a position of 1 / 6 of the blade length.

5. The single-blade double-ended pencil sharpener according to claim 1, characterized in that: The central axis of the second pencil-winding hole is located in the horizontal direction; the angle between the central axis of the first pencil-winding hole and the horizontal direction is 25°~30°.

6. The single-blade double-ended pencil sharpener according to claim 1, characterized in that: The angle between the blade and the horizontal direction is 10-13°, the angle between the central axis of the first pencil sharpener hole and the blade is 10-13°, and the angle between the central axis of the second pencil sharpener hole and the blade is 10-13°.

7. The single-blade double-ended pencil sharpener according to claim 1, characterized in that: The cutting adjustment chamber is provided with an observation slot on one side wall or both side walls of the pencil holder along the width direction of the blade.

8. A multifunctional eraser, characterized in that: The utility model comprises a main body, wherein the middle part of the main body is provided with a single-blade double-head pencil sharpener as claimed in any one of claims 1 to 7, and the main body is also provided with an eraser and a roller assembly for collecting chips.

9. A multifunctional eraser as claimed in claim 8, characterized in that: The main body has two ends that are opposite to each other, the eraser is arranged at one end of the main body, the roller assembly is arranged at the other end of the main body, and the single-blade double-head pencil sharpener is arranged between the eraser and the roller assembly; The main body is provided with a flip cover corresponding to the chip storage bin, and the flip cover is hinged to the main body in an openable or closable manner, and a closed space is formed between the chip storage bin and the flip cover.

10. A multifunctional eraser as claimed in claim 8, characterized in that: The roller assembly includes a roller and a scraper member, the scraper member includes a scraper group and mounting portions provided at both ends of the scraper group, the axial ends of the roller are correspondingly mounted on the mounting portions, the circumferential sidewall of the roller is provided corresponding to the scraper group, the scraper group is located on one side of the roller, and the scraper group and the roller are provided close to each other; The scraper assembly includes a first scraper and a second scraper, a first strip hole is formed between the first scraper and the second scraper, the first strip hole is opened along the axial direction of the roller, and two ends of the first strip hole extend along the circumferential direction of the roller to form a second strip hole, and the first strip hole and the second strip hole together constitute a chip collection hole; The main body is provided with a chip collecting chamber corresponding to the roller assembly, the scraper member is connected to the main body in a detachable manner, and the chip collecting hole is communicated with the chip collecting chamber.

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