Pencil sharpener
By designing a pivotable cover and pencil cutting seat, the problem of existing pencil cutting machines being difficult to sharpen pencils of different outer diameters is solved, and an efficient pencil cutting effect is achieved that is easy to store and carry.
Patent Information
- Application Number
- CN202421538324.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-02
AI Technical Summary
Existing pencil sharpeners are difficult to sharpen pencils of different outer diameters, and there are problems of easy storage and carrying.
A pen sharpener is designed, which includes a base, a pen sharpener and a cover. The cover body can be pivoted to two positions, and the inner diameter of the second pen inlet is smaller than the first pen inlet, and is suitable for pencils with different outer diameters.
It achieves a good pencil sharpening effect on pencils of different outer diameter sizes without increasing the overall volume, reducing costs and volume while avoiding the problem of missing parts.
Smart Images
Figure CN222819815U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a pencil sharpening device, in particular to a pencil sharpener which can sharpen pencils with different outer diameters. Background Art
[0002] Pencils can have different outer diameters. If a general pencil sharpener is used to sharpen a thinner pencil, the pencil is likely to shake in the sharpener, causing the lead to break. For the user, it is necessary to try to maintain the position of the pencil, which is also difficult to operate.
[0003] An existing pencil sharpener, as disclosed in China's utility model patent No. 201371686, includes a pencil sharpener stand and a plurality of adjustment sleeves. One or more of the plurality of adjustment sleeves are inserted into the pen inlet of the pencil sharpener stand, so that the pencil sharpener has different apertures to choose from, so as to be suitable for cutting pencils of different diameters. However, since the adjustment sleeve and the pencil sharpener stand are both independent components, and the plurality of adjustment sleeves are small in size, the user must carefully store them when not in use, otherwise the parts are easily lost. In addition, even if the adjustment sleeve is designed to fit tightly with the pen inlet of the pencil sharpener stand, it will still be difficult to assemble and disassemble, so the existing pencil sharpener has the problem of being inconvenient to use.
[0004] In addition, another conventional pencil sharpener, as disclosed in U.S. Patent Publication No. 20140090258, comprises a plurality of interconnected pencil sharpeners, each of which is used to sharpen pencils of different outer diameters. In this way, it is like carrying a plurality of conventional pencil sharpeners, resulting in a high cost and an overall large size of the conventional pencil sharpener, which is not convenient for users to store and carry.
[0005] It can be seen from this that the existing pencil sharpener has limitations and disadvantages in its use for sharpening pencils with different outer diameters, and there is indeed room for improvement. Utility Model Content
[0006] In order to solve the problem that the existing pencil sharpener cannot sharpen pencils of different outer diameters and is easy to store and carry, the utility model provides a pencil sharpener, which effectively improves the above problem and enhances the practicality of the pencil sharpener, which is further described as follows.
[0007] The utility model provides a pencil sharpener, which comprises:
[0008] a base;
[0009] a pen sharpener, the pen sharpener is combined with the base, and the pen sharpener has a first pen inlet; and
[0010] A cover body is pivotally connected to one side of the base and can pivot between a first position and a second position. The cover body has a second pen inlet, and the inner diameter of the second pen inlet is smaller than the inner diameter of the first pen inlet. When the cover body is located at the first position, the second pen inlet is located above the first pen inlet along an axis, so that a pencil can pass through the second pen inlet and the first pen inlet in sequence along the axis to enter the pencil sharpener. When the cover body is located at the second position, the cover body makes room on the pencil sharpener so that another pencil can pass through the first pen inlet along the axis to enter the pencil sharpener.
[0011] By virtue of the above technical features, when the user needs to sharpen a thicker pencil, the cover can be opened, that is, pivoted to the second position, and the pencil can be directly inserted into the pencil sharpener for sharpening. If a thinner pencil needs to be sharpened, the cover can be closed, that is, pivoted to the first position, and the pencil can pass through the second pen inlet of the cover and the first pen inlet of the pencil sharpener, and then enter the pencil sharpener for sharpening. The inner diameter of the second pen inlet is smaller than the inner diameter of the first pen inlet, and the second pen inlet can maintain the thinner pencil on the axis to prevent the pencil from shaking in the pencil sharpener and causing the problem of the lead breaking. Thus, without significantly increasing the overall volume, the pencil sharpener of the utility model can achieve a good sharpening effect for pencils of different outer diameters with a single pencil sharpener. It is not only low in cost, small in size and convenient to store, but also does not have the problem of parts being easily lost after disassembly. Therefore, the utility model improves the shortcomings of the prior art and provides a pencil sharpener that can sharpen pencils of different outer diameters. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional appearance diagram of the cover body of a preferred embodiment of the utility model when it is located in the first position.
[0013] Figure 2 It is a three-dimensional exploded view of a preferred embodiment of the utility model.
[0014] Figure 3 It is a three-dimensional appearance diagram of the cover body of a preferred embodiment of the utility model when it is located in the second position.
[0015] Figure 4 It is a side cross-sectional view of a preferred embodiment of the utility model when the cover body is located in the first position.
[0016] Figure 5 It is a side cross-sectional view of a preferred embodiment of the utility model when the cover body is located in the second position.
[0017] Figure 6 It is an operation schematic diagram of a preferred embodiment of the utility model when the cover body is located in the first position.
[0018] Figure 7It is an operation schematic diagram of a preferred embodiment of the utility model when the cover body is located at the second position.
[0019] Figure 8 It is a schematic diagram of the cover body and the base abutting against each other in a preferred embodiment of the utility model.
[0020] Fig. 9 This is another operation schematic diagram when the cover of a preferred embodiment of the utility model is located at the first position.
[0021] Fig.10 is along Figure 4 Cross-sectional view of the AA cutting line.
[0022] Fig.11 is along Figure 4 Partial cross-section of the BB cutting line.
[0023] Fig.12 It is a cross-sectional schematic diagram of a preferred embodiment of the utility model when the dust cover is positioned in the closed position. DETAILED DESCRIPTION
[0024] In order to understand the technical features and practical effects of the utility model in detail and to implement them according to the contents of the specification, the preferred embodiments shown in the drawings are further described in detail as follows:
[0025] The utility model is a pencil sharpener, and its preferred embodiment is as follows Figures 1 to 4 As shown, it includes a base 10, a pencil sharpener 20 and a cover 30, wherein Figures 2 to 4 As shown, the sharpener 20 is combined with the base 10, and the sharpener 20 has a first pen inlet 21; the cover 30 is pivotally connected to one side of the base 10, and can be pivoted and opened as shown in FIG. Figure 1 and Figure 4 As shown in the figure, the cover 30 is positioned in a first position and is located above the pencil sharpener 20. The cover 30 has a second pen inlet 31, and the inner diameter of the second pen inlet 31 is smaller than the inner diameter of the first pen inlet 21. When the cover 30 is located in the first position, the second pen inlet 31 is located above the first pen inlet 21 along an axis C, so as to Figure 6 As shown, a pencil P can pass through the second pen inlet 31 and the first pen inlet 21 along the axis C in sequence and enter the pencil sharpener 20 .
[0026] Please refer to Figure 3 and Figure 5 As shown, the cover 30 can also be pivoted to a second position, in which the cover 30 leaves space on the sharpener 20, allowing the first pen inlet 21 to be exposed on the base 10, and allowing the user to Figure 7As shown, a thicker pencil P' is directly introduced into the pencil sharpener 20 through the first pencil inlet 21 along the axis C for sharpening.
[0027] By virtue of the above technical features, when the user needs to sharpen a thicker pencil P', the cover 30 can be opened, i.e., pivoted to the second position, and the pencil P' can be directly inserted into the pencil sharpener 20 for sharpening. If a thinner pencil P needs to be sharpened, the cover 30 can be closed, i.e., pivoted to the first position, and the pencil P can pass through the second pen inlet 31 of the cover 30 and the first pen inlet 21 of the pencil sharpener 20, and then enter the pencil sharpener 20 for sharpening. Since the inner diameter of the second pen inlet 31 is smaller than the inner diameter of the first pen inlet 21, the second pen inlet 31 can maintain the thinner pencil P on the axis C to prevent the pencil P from shaking in the pencil sharpener and causing the problem of the lead breaking.
[0028] Thus, without significantly increasing the overall volume, the present invention can achieve good sharpening effects on pencils P and P' of different outer diameters with a single pencil sharpener, which is not only low in cost and small in size for easy storage, but also has no problem of parts being easily lost after being disassembled. Therefore, the present invention improves the shortcomings of the prior art and provides a pencil sharpener that can sharpen pencils of different outer diameters.
[0029] For further information, see Figures 2 to 5 As shown, the top of the base 10 has a first side and a second side, the first pen inlet 21 of the pencil sharpener 20 is located between the first side and the second side, the cover 30 is pivotally connected to the base 10 at the first side, and the cover 30 can be buckled with the base 10 at the second side, so that the cover 30 is positioned at the first position. Specifically, in a preferred embodiment of the utility model, Figures 2 to 5 As shown, the first side of the top of the base 10 has a pair of pivot ears 11, and the second side is provided with a snap groove 12, and the cover body 30 is correspondingly provided with a pair of pivots 32 on one side and a snap flange 33 on the other side. The pair of pivots 32 are correspondingly inserted into the pair of pivot ears 11, so that the cover body 30 is pivotally connected to the first side of the base 10, and when the cover body 30 is pivoted to the first position, the snap flange 33 can extend into and snap into the snap groove 12, thereby completing the positioning of the cover body 30.
[0030] In other embodiments, the pivot ear 11 and the pivot shaft 32 may be arranged oppositely, that is, the pivot ear 11 is arranged on the cover body 30 and the pivot shaft 32 is arranged on the base 10, and the buckle groove 12 and the buckle flange 33 may also be arranged oppositely. In addition, in other embodiments, other pivoting forms may be used, and magnetic attraction or other known means may be used to replace the buckle means and perform positioning, so that the cover body 30 is positioned in the first position, so that the second pen inlet 31 is coaxially opposite to the first pen inlet 21 of the pen sharpener 20.
[0031] Preferably, if Figure 2 and Figure 3 As shown, the cover 30 is provided with a pivoting portion 301 pivotally connected to the base 10, and the pivoting portion 301 has a positioning flange 302. The positioning flange 302 changes position relative to the base 10 as the pivoting portion 301 rotates. When the cover 30 is located at the first position, as shown in FIG. Figure 4 As shown in FIG. 1 , the positioning flange 302 is located away from the base 10. The surface of the positioning flange 302 is actually the surface of the pivot 301 that is farthest from the swing axis of the cover 30, so that the surface of the pivot 301 forms a cam surface, and the curvature radius of the surface of the positioning flange 302 is smaller than the curvature radius of the surface of other parts of the pivot 301; and the cover 30 is formed as follows Figure 4 The first position shown is as follows Figure 5 During the swinging process of the second position shown in FIG. Figure 8 As shown, the positioning flange 302 can abut against the base 10, so that the cover 30 is positioned at the second position, and when the positioning flange 302 passes the abutting position, other parts of the pivoting portion 301 will not abut against the base 10. Figure 8 The two-dot chain line shown is only to illustrate the change in state of the base 10 being elastically deformed by the abutment. In actual situations, the pivoting portion 11 may be elastically deformed, both may be elastically deformed, or there may be simple contact friction, which is not limited to the situation shown in the figure.
[0032] Specifically, after the positioning flange 302 abuts against the base 10, it can cause elastic deformation through external force or pass through friction, so that the cover 30 can continue to swing smoothly toward the second position. Therefore, in actual operation, when the user swings the cover 30 to the second position to sharpen a thicker pencil P', the positioning flange 302 abuts against the base 10, which can prevent the cover 30 from swinging toward the base 10 easily, thereby preventing the cover 30 from shaking and causing the user's operation to be unsmooth. When the user needs to cover the cover 30 on the base 10, by swinging the cover 30 and applying force to allow the positioning flange 302 to pass through the position of abutting against the base 10, the cover 30 can be smoothly swung toward the first position.
[0033] In the preferred embodiment of the present invention, the pair of pivots 32 are disposed at both ends of the pivoting portion 301; in other embodiments, pivot holes may be disposed at both ends of the pivoting portion 301 for the pivots to be coupled. In addition, even if the cover 30 is not provided with the positioning flange 302, as long as the cover 30 can be pivoted to make room for the space above the pencil sharpener 20, the user can still sharpen a thicker pencil P' and still achieve the creative purpose of the present invention.
[0034] Please refer to Figure 3 , Figure 4 and Figure 5 As shown, the pencil sharpener is provided with a latch structure, which includes an annular flange 34 and a latch recess 13. The annular flange 34 and the latch recess 13 are respectively formed on the cover 30 and the base 10, so that when the cover 30 is pivoted to the first position, the annular flange 34 extends into the latch recess 13 and abuts against the inner side wall of the latch recess 13, thereby preventing the cover 30 from being slightly shaken due to manufacturing tolerance or long-term wear after being buckled on the base 10, and enabling the positioning of the cover 30 and the base 10 to be more stable, so that the user has good operational stability when sharpening a thinner pencil P. In other embodiments, the annular flange 34 and the latch recess 13 may also be formed on the base 10 and the cover 30 respectively; that is, the latch recess 13 may be provided on one of the base 10 and the cover 30, and the annular flange 34 may be provided on the other at a position corresponding to the latch recess 13.
[0035] Further, in a preferred embodiment of the present invention, Figure 3 and Figure 5 As shown, the latch recess 13 is recessed at a position on the top surface of the base 10 close to the first pen inlet 21 of the pencil sharpener 20, and the annular flange 34 is protruded at the bottom of the cover 30. In this way, when the cover 30 is in the second position and the user wants to insert a thicker pencil P' into the pencil sharpener 20, the pencil can be inserted smoothly without being blocked by the annular flange 34.
[0036] Further, see Figures 3 to 5 and Fig. 9 As shown, the cover 30 is further provided with a plurality of elastic clamping units 35, each of which protrudes toward the pencil sharpener 20 to form a clamping end, and the plurality of elastic clamping units 35 are arranged in a circle around the axis C so that the inner side surfaces of the clamping ends surround a clamping circle, and the inner diameter of the clamping circle is smaller than the inner diameter of the second pen inlet 31. By means of the elastic clamping units 35, when the cover 30 is in the first position, the user can also Fig. 9 The pencil sharpener 20 is shown to be used to sharpen a thinner pencil P".
[0037] For details, please refer to Figure 6 As shown in FIG. 1 , when the user covers the cover 30, a thinner pencil P can be inserted into the pencil sharpener 20 through the second pen inlet 31 and the first pen inlet 21. At this time, the plurality of elastic clamping units 35 are elastically stretched open by the pencil P, that is, the clamping ends of the elastic clamping units 35 expand radially outward to a degree that the pencil P can pass smoothly, and at this time, each of the elastic clamping units 35 abuts against the pencil P to provide a clamping stabilization function; correspondingly, the user can also insert a thinner pencil, the outer diameter of which can be between the inner diameter of the clamping circle of the clamping end of the elastic clamping unit 35 and the inner diameter of the second pen inlet 31, or as Fig. 9 The outer diameter of the pencil P" shown is roughly equal to the inner diameter of the clamping circle of the elastic clamping unit 35. At this time, the elastic clamping unit 35 can be slightly elastically deformed to allow the pencil P" to pass through, or the clamping end of the elastic clamping unit 35 can be pressed against the pencil P" to prevent the pencil P" from swinging during the sharpening process. With the above technical features, the pencil sharpener of the utility model can sharpen pencils P, P', P" of more than three outer diameters without increasing the overall volume, thereby effectively improving the practicality of the pencil sharpener.
[0038] Specifically, in a preferred embodiment of the present utility model, Figure 3 As shown, each of the elastic clamping units 35 is an arc-shaped spring sheet, and the inner side surface can be partially in contact with the inserted pencil P, P", so as to further stabilize the posture of the pencil P, P", and improve the stability of the pencil sharpening operation. In addition, in the preferred embodiment of the utility model, the circle surrounded by the elastic clamping units 35 is slightly tapered toward the direction of the pencil sharpener 20, providing a guiding effect, and further improving the stability of the pencil sharpening operation. In addition, in the preferred embodiment of the utility model, the multiple elastic clamping units 35 extend into the first pen inlet 21, so that the position clamped on the pencil P, P" is closer to the position of sharpening the pencil P, P", which can increase the stability of the operation.
[0039] Further, see Figures 2 to 4 and Fig.10 The base 10 and the pencil sharpener 20 are connected via a ratchet structure, so that the pencil sharpener 20 can rotate unidirectionally relative to the base 10 .
[0040] Specifically, the base 10 includes two opposing shells 101 and a chip collecting box 102. The two opposing shells 101 can be combined with each other to form the top of the base 10, so that the pair of pivot ears 11 are respectively formed on one of the shells 101, and the buckle groove 12 is formed by the two shells 101, and the pencil sharpener 20 is clamped by the two shells 101; the chip collecting box 102 is combined with the bottom of the two shells 101, and the pencil sharpener 20 is inserted into the inside thereof to accommodate the pencil shavings generated by the pencil sharpener 20.
[0041] like Fig.10 As shown, the ratchet structure includes a plurality of pawls 22 and a plurality of ratchet teeth 14. The plurality of pawls 22 are formed at intervals on the outer periphery of the pencil sharpener 20, and the plurality of ratchet teeth 14 are formed on the inner periphery of the two shells 101 of the base 10. When the pencil sharpener 20 is combined with the base 10, the plurality of pawls 22 can mesh with the plurality of ratchet teeth 14 and work together to enable the pencil sharpener 20 to rotate unidirectionally relative to the base 10.
[0042] Please refer to Figure 2 , Figure 4 , Fig.11 and Fig.12 As shown, the pencil sharpener includes a dust cover 40, which can be movably combined with the cover body 30 and can be Fig.12 As shown, the second pen inlet 31 is shielded. Thus, after the user has finished using the pencil sharpener, the dust cover 40 can be closed by pushing the dust cover 40 to prevent the pencil shavings contained in the shavings box 102 of the base 10 from leaking out through the first pen inlet 21 and the second pen inlet 31, thereby dirtying the environment where the user stores the pencil sharpener.
[0043] Further, the dust cover 40 can be Fig.11 The open position shown and Fig.12 The dust cover 40 is slidably coupled to the top surface of the cover body 30 between the closed position and the closed position shown in FIG. Fig.12 As shown, the through hole 41 is not connected to the second pen inlet 31, so as to prevent pencil shavings from leaking out. When the dust cover 40 is in the open position, as shown in FIG. Figure 1 , Figure 4 and Fig.11 As shown, the second pen inlet 31 is completely exposed through the through hole 41, so that the user can insert a thinner pencil P, P" for sharpening.
[0044] In other possible implementations, the dust cover 40 may be only a smaller cover plate, and may be movable on the cover body 30 to cover the second pen inlet 31 or to leave space to expose the second pen inlet 31 .
[0045] Preferably, if Figure 2 , Fig.11 and Fig.12 As shown, when the dust cover 40 is located between the open position and the closed position, the dust cover 40 and the cover body 30 abut against each other and are elastically deformed, so that the dust cover 40 is easily positioned in the open position or the closed position. Specifically, in a preferred embodiment of the utility model, the cover body 30 is provided with two opposite partitions 303 and a platform 304 located between the two partitions 303, the second pen inlet 31 is located on the platform 304, and the dust cover 40 is slidably arranged on the platform 304, and the two partitions 303 are respectively recessed along a width direction W to form a slide groove 36, and the width direction W is perpendicular to the sliding direction of the dust cover 40, as shown in FIG. Fig.11 and Fig.12 As shown, each of the slide grooves 36 includes a middle section 361 and two side sections 362, the middle section 361 has a shallower depth along the width direction W, and the side sections 362 have a deeper depth along the width direction W. The dust cover 40 has two side walls, and an elastic block 42 is respectively provided on the two side walls, so that when the dust cover 40 slides with the cover body 30, the two elastic blocks 42 abut against the middle sections 361 of the two slide grooves 36 and are elastically deformed, and the two elastic blocks 42 can extend into one of the side sections 362 of the two slide grooves 36 for positioning. In other words, the two side sections 362 of each of the slide grooves 36 correspond to the open position and the closed position of the dust cover 40, respectively.
[0046] When the user adjusts the position of the dust cover 40 so that the dust cover 40 is located between the open position and the closed position, the two elastic blocks 42 are squeezed by the middle section 361 and elastically deformed due to the shallowness of the middle section 361. When the dust cover 40 moves to the open position or the closed position, the two elastic blocks 42 rebound and extend into the deeper side sections 362 of the two slide grooves 36 to complete the positioning, so that the dust cover 40 can be easily positioned in the open position or the closed position.
[0047] Preferably, in other embodiments, if the cover body 30 is provided with only one slide groove 36, and the dust cover 40 is correspondingly provided with only one elastic block 42, and the partition plate 303 on the other side of the cover body 30 and the side wall on the other side of the dust cover 40 are directly abutted against each other, the elastic block 42 can still be squeezed and elastically deformed in the middle section 361 of the slide groove 36 to achieve the effect of making the dust cover 40 easily positioned in the open position or the closed position. Furthermore, in the case of appropriately modifying the shapes of the cover body 30 and the dust cover 40, the embodiment in which the elastic block 42 is provided on the cover body 30 and the slide groove 36 is provided on the dust cover 40 can also achieve the same technical effect.
[0048] The above description is only a preferred embodiment of the present invention and is not a limitation of the present invention in any form. Any person with ordinary knowledge in the technical field can make equivalent embodiments by partially changing or modifying the technical contents disclosed in the present invention without departing from the scope of the technical solution of the present invention, and they are still within the scope of the technical solution of the present invention.
Claims
1. A pencil sharpener, characterized in that: Included are: a base; A pencil sharpener, which is combined with the base and has a first pen inlet; and a cover, which is pivotally connected to one side of the base and can pivot between a first position and a second position, the cover having a second pen inlet, the inner diameter of which is smaller than the inner diameter of the first pen inlet, when the cover is located at the first position, the second pen inlet is located above the first pen inlet along an axis, so that a pencil can pass through the second pen inlet and the first pen inlet in sequence along the axis to enter the pencil sharpener, and when the cover is located at the second position, the cover makes room on the pencil sharpener, so that another pencil can pass through the first pen inlet along the axis to enter the pencil sharpener.
2. The pencil sharpener according to claim 1, characterized in that The top of the base has a first side and a second side, the first pen inlet of the pencil sharpener is located between the first side and the second side, the cover is pivotally connected to the base at the first side, and the cover can be buckled with the base at the second side, so that the cover is positioned at the first position.
3. The pencil sharpener according to claim 1, characterized in that The cover body is provided with a pivot portion pivotally connected to the base, and the pivot portion has a positioning flange. When the cover body is located at the first position, the positioning flange is located away from the base. During the process of the cover body swinging from the first position to the second position, the positioning flange abuts against the base to position the cover body at the second position.
4. The pencil sharpener according to claim 1, wherein: The pencil sharpener is provided with a latch structure, which includes an annular flange and a latch recess. The latch recess is recessed at the bottom of the cover body, and the annular flange is convexly arranged on the top surface of the base near the first pen inlet, so that when the cover body is pivoted to the first position, the annular flange extends into the latch recess and abuts against the inner side wall of the latch recess.
5. The pencil sharpener according to claim 1, wherein: The pencil sharpener is provided with a latch structure, which includes an annular flange and a latch recess. The latch recess is recessed at a position on the top surface of the base close to the first pen inlet, and the annular flange is convexly arranged at the bottom of the cover body, so that when the cover body is pivoted to the first position, the annular flange extends into the latch recess and abuts against the inner side wall of the latch recess.
6. The pencil sharpener according to claim 1, wherein: The cover body is provided with a plurality of elastic clamping units, each of which protrudes toward the pen sharpener to form a clamping end, and the plurality of elastic clamping units are arranged in a circle around the axis so that the inner side surfaces of the clamping ends form a clamping circle, and the inner diameter of the clamping circle is smaller than the inner diameter of the second pen inlet.
7. The pencil sharpener according to claim 1, wherein: The base is connected to the pencil sharpener through a ratchet structure, so that the pencil sharpener can rotate unidirectionally relative to the base.
8. The pencil sharpener according to any one of claims 1 to 7, characterized in that The pencil sharpener comprises a dust cover which can be movably combined with the cover body between an open position and a closed position and can cover the second pencil inlet.
9. The pencil sharpener according to claim 8, characterized in that The dust cover can be slidably coupled to the top surface of the cover body between the open position and the closed position. The dust cover is provided with a through hole. When the dust cover is located at the closed position, the through hole is not connected to the second pen inlet. When the dust cover is located at the open position, the second pen inlet is completely exposed through the through hole.
10. The pencil sharpener according to claim 8, wherein: The cover body and the dust cover are respectively provided with at least one slide groove and at least one elastic block, and the elastic block is correspondingly located in the slide groove, and the slide groove includes two side parts with deeper depth and a middle part with shallower depth, so that the dust cover and the cover body slide when moving, and the elastic block abuts against the middle part of the slide groove and deforms elastically, and the elastic block can extend into one of the side parts of the slide groove for positioning.