A pencil sharpener

Abstract

This utility model discloses a pencil sharpener, comprising: a housing having a receiving cavity, a limiting plate being disposed within the receiving cavity, and a threaded hole being formed in the limiting plate; a spiral member disposed within the receiving cavity, the spiral member having a screw threadedly connected to the threaded hole, and a receiving cover being disposed at one end of the spiral member, the receiving cover having a receiving space; an elastic reset member disposed between the receiving cover and the limiting plate; and a blade assembly disposed within the receiving cover, the blade assembly being movable relative to the housing to a first position and a second position. This utility model can improve the convenience of pencil sharpening.

Description

Technical Field

[0001] This utility model relates to the field of pencil sharpener technology, and in particular to a pencil sharpener. Background Technology

[0002] Pencil sharpeners are a common learning tool for students, effectively saving them time when sharpening pencils. However, existing manual pencil sharpeners generally require students to manually rotate the pencil or the sharpener to sharpen it, which is cumbersome and laborious, affecting learning efficiency. Utility Model Content

[0003] This invention provides a pencil sharpener that improves the convenience of sharpening pencils.

[0004] To solve the above-mentioned technical problems, this utility model provides a pencil sharpener, characterized in that it includes:

[0005] The housing has a receiving cavity inside, and a limiting plate is provided inside the receiving cavity. The limiting plate has a threaded hole.

[0006] A spiral component is disposed in the receiving cavity. The spiral component is provided with a screw, which is spirally connected to the threaded hole. One end of the spiral component is provided with a receiving cover, which has a receiving space.

[0007] An elastic reset element is disposed between the receiving cover and the limiting plate;

[0008] A cutter head assembly is disposed within the receiving cover, and the cutter head assembly is movable relative to the housing to a first position and a second position.

[0009] As a preferred embodiment of the above technical solution, the pencil sharpener further includes a chip collection cover, which is detachably disposed within the receiving cover, and the blade assembly is detachably disposed within the chip collection cover.

[0010] As a preferred embodiment of the above technical solution, the pencil sharpener further includes a chip collection cover, which is detachably disposed within the receiving cover, and the blade assembly is detachably disposed within the chip collection cover.

[0011] As a preferred embodiment of the above technical solution, the cutter head assembly includes a cutter head holder and a cutting blade, the cutting blade being disposed on the cutter head holder, and the cutter head holder having a tapered guide portion.

[0012] As a preferred embodiment of the above technical solution, the receiving cover is provided with a first locking part, and the cutter head seat is provided with a second locking part, wherein the first locking part and the second locking part are locked together.

[0013] As a preferred embodiment of the above technical solution, the first snap-fit ​​part is a through hole with an octagonal cross-section, and the second snap-fit ​​part is a snap-fit ​​plate with an octagonal cross-section, wherein the snap-fit ​​plate is disposed at the end of the cutter head seat.

[0014] As a preferred embodiment of the above technical solution, the pencil sharpener further includes a protective cover, which covers the blade assembly. A positioning post is provided in the middle of the protective cover, and the positioning post is inserted into the tapered guide portion.

[0015] As a preferred embodiment of the above technical solution, the outer wall of the receiving cover is provided with a plurality of protrusions, which abut against the inner wall of the receiving cavity.

[0016] As a preferred embodiment of the above technical solution, the cross-section of the screw is rectangular.

[0017] As a preferred embodiment of the above technical solution, the end of the screw is provided with a guide portion.

[0018] As a preferred embodiment of the above technical solution, the elastic reset component is a reset spring, which is sleeved on the screw, with one end of the reset spring abutting against the limiting plate and the other end of the reset spring abutting against the receiving cover.

[0019] This utility model provides a pencil sharpener, characterized by comprising: a housing, a spiral component, an elastic reset component, and a blade assembly. In use, a pencil is inserted into the blade assembly, and the pencil is pressed along the axial direction of the housing, causing the blade assembly to move from a first position to a second position. At this time, the spiral component moves towards the limiting plate, and the screw rotates spirally under the influence of the threaded hole, causing the blade assembly to rotate and cut the pencil. The elastic reset component is used to reset the blade assembly and the spiral component. This process is repeated several times to achieve automatic pencil sharpening, making operation simple and labor-saving, and improving the convenience of pencil sharpening.

[0020] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a pencil sharpener according to an embodiment of the present utility model;

[0022] Figure 2 This is an exploded view of a pencil sharpener according to an embodiment of the present invention;

[0023] Figure 3This is a schematic diagram of the structure of a pencil sharpener according to an embodiment of the present utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the spiral component of a pencil sharpener according to an embodiment of the present invention;

[0025] Figure 5 This is a three-dimensional structural diagram of the blade assembly of a pencil sharpener according to an embodiment of the present utility model;

[0026] In the diagram: 1. Housing; 2. Spiral component; 3. Elastic reset component; 4. Cutter head assembly; 5. Chip collection cover; 6. Protective cover; 101. Receiving cavity; 102. Limiting plate; 103. Threaded hole; 201. Screw; 202. Receiving cover; 203. Guide part; 204. First locking part; 205. Protrusion; 401. Cutter head seat; 402. Cutting tool; 403. Tapered guide part; 404. Second locking part; 601. Positioning pin. Detailed Implementation

[0027] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] See Figures 1 to 5 This utility model embodiment provides a pencil sharpener, characterized in that it includes:

[0029] The housing 1 has a receiving cavity 101 inside, and a limiting plate 102 is provided in the receiving cavity 101. The limiting plate 102 has a threaded hole 103.

[0030] The spiral component 2 is disposed in the receiving cavity 101. The spiral component 2 is provided with a screw 201, which is spirally connected to the threaded hole 103. One end of the spiral component 2 is provided with a receiving cover 202, which has a receiving space.

[0031] An elastic reset member 3 is disposed between the receiving cover 202 and the limiting plate 102;

[0032] The cutter head assembly 4 is disposed within the receiving cover 202, and the cutter head assembly 4 can move relative to the housing 1 to a first position and a second position.

[0033] This utility model provides a pencil sharpener, characterized by comprising: a housing 1, a spiral component 2, an elastic reset component 3, and a blade assembly 4. In use, a pencil is inserted into the blade assembly 4, and the pencil is pressed along the axial direction of the housing 1, causing the blade assembly 4 to move from a first position to a second position. At this time, the spiral component 2 moves towards the limiting plate 102, and the screw 201 rotates spirally under the influence of the threaded hole 103. The blade assembly 4 rotates accordingly, cutting the pencil. The elastic reset component 3 is used to reset the blade assembly 4 and the spiral component 2. This process is repeated several times to achieve automatic pencil sharpening, making operation simple and labor-saving, and improving the convenience of pencil sharpening.

[0034] In a further embodiment of this invention, the pencil sharpener also includes a chip collection cover 5, which is detachably disposed within the receiving cover 202, and the blade assembly 4 is detachably disposed within the chip collection cover 5.

[0035] In this embodiment, the pencil sharpener also includes a shavings collection cover 5. The blade assembly 4 is detachably disposed inside the shavings collection cover 5. When sharpening a pencil, pencil shavings will fall into the shavings collection cover 5, making it easy to clean the pencil shavings and keep the usage environment clean.

[0036] In a further embodiment of this invention, the cutter head assembly 4 includes a cutter head seat 401 and a cutting blade 402. The cutting blade 402 is disposed on the cutter head seat 401, and a tapered guide portion 403 is provided on the cutter head seat 401.

[0037] In this embodiment, the cutter head assembly 4 includes a cutter head seat 401 and a cutting blade 402. The cutter head seat 401 has a tapered hole in which the cutting blade 402 is embedded. The inner sidewall of the tapered hole forms a tapered guide portion 403 to ensure that the cutting blade 402 is in close contact with the pencil, making the cutting more precise and improving the cutting quality.

[0038] In a further embodiment of this invention, the receiving cover 202 is provided with a first snap-fit ​​portion 204, and the cutter head seat 401 is provided with a second snap-fit ​​portion 404, wherein the first snap-fit ​​portion 204 and the second snap-fit ​​portion 404 are snapped together.

[0039] In this embodiment, the first locking part 204 and the second locking part 404 engage to tightly connect the cutter head seat 401 and the receiving cover 202. During use, the screw 201 rotates spirally under the influence of the threaded hole 103. The receiving cover 202 drives the cutter head seat 401 to rotate synchronously through the cooperation of the first locking part 204 and the second locking part 404, thereby causing the cutting blade 402 to rotate and achieving uniform cutting of the pencil. By setting the mutual cooperation of the first locking part 204 and the second locking part 404, the wobble of the cutter head assembly 4 is avoided, the cutting stability and safety are improved, and the service life of the cutter head is extended.

[0040] In a further embodiment of this invention, the first snap-fit ​​portion 204 is a through hole with an octagonal cross-section, and the second snap-fit ​​portion 404 is a snap-fit ​​plate with an octagonal cross-section, wherein the snap-fit ​​plate is disposed at the end of the cutter head seat 401.

[0041] In this embodiment, the octagonal through hole and the octagonal snap-fit ​​plate fit together tightly, which can better transmit rotational power and ensure that the cutter head assembly 4 is stable and does not shake during the cutting process. At the same time, the structure is simple, which makes it easy for users to quickly install the cutter head assembly 4 into the receiving cover 202 and remove it from the receiving cover 202, thus improving the ease of use.

[0042] In a further embodiment of this invention, the pencil sharpener also includes a protective cover 6, which covers the blade assembly 4. A positioning post 601 is provided in the middle of the protective cover 6, and the positioning post 601 is inserted into the tapered guide portion 403.

[0043] In this embodiment, the pencil sharpener also includes a protective cover 6. After use, the protective cover 6 is placed over the blade assembly 4, providing protection by preventing fingers from directly contacting the cutting blade 402 and preventing accidental cuts. It also prevents foreign objects from entering the blade assembly 4, keeping the blade clean, extending its service life, and improving the overall user experience. A positioning post 601 is provided in the middle of the protective cover 6. During the process of placing the protective cover 6 over the blade assembly 4, the positioning post 601 cooperates with the tapered guide portion 403 to provide guidance, ensuring accurate installation of the protective cover 6 and improving ease of use.

[0044] In a further embodiment of this invention, the outer side wall of the receiving cover 202 is provided with a plurality of protrusions 205, and the protrusions 205 abut against the inner side wall of the receiving cavity 101.

[0045] In this embodiment, the outer wall of the receiving cover 202 is provided with a plurality of protrusions 205. The plurality of protrusions 205 are evenly distributed on the outer wall of the receiving cover 202. During the sharpening process, the receiving cover 202 will rotate under the drive of the screw 201. The protrusions 205 are in close contact with the inner wall of the receiving cavity 101, effectively reducing friction and vibration, further optimizing the user experience, and extending the overall life of the pencil sharpener.

[0046] In a further embodiment of this invention, the cross-section of the screw 201 is rectangular.

[0047] In this embodiment, the screw 201 is formed by twisting a strip of material with a rectangular cross-section. Compared with the traditional screw 201, it is easier to manufacture, has a lower cost, and has a larger contact area, which improves cutting efficiency and stability.

[0048] In a further embodiment of this invention, a guide portion 203 is provided at the end of the screw 201.

[0049] In this embodiment, the end of the screw 201 is provided with a guide portion 203, which cooperates with the threaded hole 103 to ensure that the screw 201 is smoothly inserted into the threaded hole 103, avoids jamming, and further improves the user experience and durability of the pencil sharpener.

[0050] In a further embodiment of this invention, the elastic reset member 3 is a reset spring, which is sleeved on the screw 201. One end of the reset spring abuts against the limiting plate 102, and the other end of the reset spring abuts against the receiving cover 202.

[0051] In this embodiment, one end of the reset spring abuts against the limiting plate 102, and the other end of the reset spring abuts against the receiving cover 202. The elasticity of the reset spring ensures that the blade assembly 4 and the spiral component 2 automatically reset after each cut, thereby improving the service life and stability of the pencil sharpener, reducing the difficulty of user operation, and enhancing the overall user experience.

[0052] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A pencil sharpener, characterized by, include: The housing has a receiving cavity inside, and a limiting plate is provided inside the receiving cavity. The limiting plate has a threaded hole. A spiral component is disposed in the receiving cavity. The spiral component is provided with a screw, which is spirally connected to the threaded hole. One end of the spiral component is provided with a receiving cover, which has a receiving space. The cross-section of the screw is rectangular, and the end of the screw is provided with a guide portion. An elastic reset element is provided between the receiving cover and the limiting plate. The elastic reset element is a reset spring, which is sleeved on the screw. One end of the reset spring abuts against the limiting plate, and the other end of the reset spring abuts against the receiving cover. A cutting head assembly is disposed within the receiving cover. The cutting head assembly is movable relative to the housing to a first position and a second position. The cutting head assembly includes a cutting head seat and a cutting blade. The cutting blade is disposed on the cutting head seat, and a tapered guide portion is provided on the cutting head seat.

2. The pencil sharpener of claim 1, wherein The pencil sharpener also includes a chip collection cover, which is detachably disposed within the receiving cover, and the blade assembly is detachably disposed within the chip collection cover.

3. The pencil sharpener of claim 1, wherein The receiving cover is provided with a first locking part, and the cutter head seat is provided with a second locking part, and the first locking part and the second locking part are locked together.

4. The pencil sharpener of claim 3, wherein The first snap-fit ​​part is a through hole with an octagonal cross-section, and the second snap-fit ​​part is a snap-fit ​​plate with an octagonal cross-section. The snap-fit ​​plate is disposed at the end of the cutter head seat.

5. The pencil sharpener of claim 1, wherein The pencil sharpener also includes a protective cover, which covers the blade assembly. A positioning post is provided in the middle of the protective cover and is inserted into the tapered guide portion.

6. The pencil sharpener of claim 1, wherein The outer wall of the receiving cover is provided with several protrusions, which abut against the inner wall of the receiving cavity.

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