Pencil sharpener

Abstract

The utility model discloses a pencil sharpener, and relates to the technical field of stationery, the pencil sharpener comprises a shell, a pencil sharpening mechanism is installed in the shell, a cover body is rotatably installed on the shell, a pencil inlet allowing a pencil to penetrate into the shell is formed in the cover body, a first blocking piece and a second blocking piece are movably installed in the shell, and the first blocking piece and the second blocking piece are movably installed in the shell. The first blocking piece and the second blocking piece are both located at the position of the pen inlet and are both in linkage with the cover body, the cover body is stressed to rotate to drive the first blocking piece and the second blocking piece to open and close the pen inlet, the first blocking piece and the second blocking piece are driven to open and close the pen inlet through rotation of the cover body, the structure is simple and reliable, and use is labor-saving and convenient.

Description

Technical Field

[0001] The present application relates to the technical field of stationery products, and more specifically to a pencil sharpener. Background Art

[0002] A pencil is mainly composed of a graphite lead and a wooden pen holder. A pencil sharpener is a tool that can shave off the wooden layer on the outside of a pencil to expose the inner lead. The pencil sharpener rotates relative to the inserted pencil through the blade, thereby shaving off the wooden layer on the outer wall of the pencil to expose the lead, and the lead can be sharpened by the obliquely installed blade. The sharpened lead is more convenient for writing and drawing. When a pencil sharpener is used to cut a pencil, the cut debris is often scattered on the ground or on the table, and the pen inlet of the used pencil sharpener is dirty, which is easy to contaminate the storage utensils, and the blade is also easily damaged. In view of the above problems, a utility model patent with publication number: CN200945791Y discloses a pencil sharpener, including a knife holder body with a blade fixed thereon, a debris collection box connected to the knife holder body, and the characteristics of the knife holder body being fixed in a seat body, the end surface of the seat body having a hole connected to the conical pencil sharpening hole on the knife holder body, and the seat body being connected to the debris collection box through a base; the seat body is sleeved with a driving ring that can rotate on the seat body, the outer surface of the seat body has two spiral grooves and is covered with two movable leaves that can be opened and closed, and the inner surfaces of the two movable leaves have screw holes respectively embedded in the two spiral grooves. The invention relates to a protrusion in the groove that can slide in the two spiral grooves, the two pivot ends of the movable page are respectively connected to the pivot of the driving ring, a box cover is connected to the driving ring, and the box cover has a notch that can expose the end face of the seat body; in this technical solution, a debris collection box is provided to collect debris and protect the blade to prevent contamination of the blade edge, and two movable pages that can be opened and closed are provided, and the two movable pages can be closed to close the end face of the seat body and the hole thereon to avoid leakage of debris from the pen inlet, but the opening and closing structure of the movable page is relatively complicated, and there is a certain degree of difficulty in assembly, and the movable page is large in size, which has a greater impact on the overall size. Utility Model Content

[0003] The technical problem to be solved by the present application is to provide a pencil sharpener, which drives the first baffle and the second baffle to open and close the pen inlet by rotating the cover body, has a simple and reliable structure, and is labor-saving and convenient to use.

[0004] The present application provides a pencil sharpener, comprising a shell, a pencil sharpening mechanism installed in the shell, a cover body rotatably installed on the shell, a pen inlet for a pen to pass through and enter the shell is provided on the cover body, a first baffle and a second baffle are movably installed in the shell, the first baffle and the second baffle are both located at the pen inlet, the first baffle and the second baffle are both linked to the cover body, and the cover body is rotated under force to drive the first baffle and the second baffle to open and close the pen inlet.

[0005] In the present technical solution, a pencil sharpening mechanism is installed through a shell, and a pen is inserted into the shell and enters the pencil sharpening mechanism. The insertion direction is the pen feeding direction. The user rotates the pen so that the wood layer on the outside of the pen and the blade of the pencil sharpening mechanism rotate relative to each other, so that the wood layer is cut off and the pen core is exposed. As the pen is continuously rotated and deepened, the pen core is gradually sharpened, and the cut pencil shavings are stored in the shell. Considering that the pencil sharpener is prone to spilling out the pencil shavings during the storage process, in the present solution, a cover body is installed on the shell, and a pen inlet for the pen to pass through is provided on the cover body. The pen is inserted into the pen inlet and enters the shell. The pen inlet connects the inside and outside of the shell. External debris and dust can easily enter the shell through the pen inlet and affect the normal operation of the pencil sharpening mechanism. , and the internal pen shavings are easy to leak from the pen inlet and affect the storage environment. By movably installing the first baffle and the second baffle in the shell, the first baffle and the second baffle are both located between the shell and the pen inlet, and the first baffle and the second baffle can open and close the pen inlet through movably cooperating, thereby isolating the pen inlet and the inside of the shell, preventing the pen inlet from leaking shavings, and preventing debris and dust from entering the shell. By arranging a cover body to be rotatably installed on the shell, and the cover body is linked with the first baffle and the second baffle, the cover body can be rotated relative to the shell under force, and the cover body can drive the first baffle and the second baffle to move by rotation, thereby realizing opening and closing the pen inlet, the structural design is ingenious, the rotation opening and closing is labor-saving, the structure is simple and easy to assemble.

[0006] As an improvement, the inner wall of the cover body is provided with a guide part, the first baffle is provided with a first linkage part connected to the guide part, the second baffle is provided with a second linkage part connected to the guide part, and the cover body rotates to drive the first baffle and the second baffle to open and close the pen inlet through the guide part. In the present technical scheme, the first baffle and the second baffle are both linked with the cover body, by providing a guide part on the inner wall of the cover body, providing a first linkage part on the first baffle, and providing a second linkage part on the second baffle, the first linkage part is connected to the guide part so that the first baffle is linked with the cover body, the rotation of the cover body can drive the first baffle to move closer to or away from the second baffle, the second linkage part is connected to the guide part so that the second baffle is linked with the cover body, the rotation of the cover body can drive the second baffle to move closer to or away from the first baffle, and the linkage structure is simple and reliable; as a preferred embodiment, the guide part is connected to the first linkage part in a concave-convex matching manner, and the guide part is connected to the second linkage part in a concave-convex matching manner.

[0007] As an improvement, the guide part includes a first sliding part and a second sliding part, the first sliding part is slidably connected to the first linkage part, and the second sliding part is slidably connected to the second linkage part. In the technical solution, the guide part is composed of the first sliding part and the second sliding part, the guide part is slidably connected to the first linkage part through the first sliding part, the first sliding part and the first linkage part are matched in a concave-convex manner, the cover body rotates through the first sliding part and the first linkage part to slide relative to each other so as to drive the first baffle to approach or move away from the second baffle, the guide part is slidably connected to the second linkage part through the second sliding part, the second sliding part and the second linkage part are matched in a concave-convex manner, the cover body rotates through the second sliding part and the second linkage part to slide relative to each other so as to drive the second baffle to approach or move away from the first baffle, the connection structure is simple and the assembly is labor-saving.

[0008] As an improvement, the first sliding part and the second sliding part are both arc-shaped. In this technical solution, the first sliding part and the second sliding part are both arc-shaped, so that the rotation of the cover body can drive the first baffle to move closer to or away from the second baffle through the arc-shaped first sliding part, and drive the second baffle to move closer to or away from the first baffle through the arc-shaped second sliding part. The structural design is ingenious.

[0009] As an improvement, the first sliding part and the second sliding part are both groove structures, and the first linkage part and the second linkage part are both convex structures; or, the first sliding part and the second sliding part are both convex structures, and the first linkage part and the second linkage part are both groove structures. In this technical solution, the first sliding part and the first linkage part are concave-convex matched, and the second sliding part and the second linkage part are concave-convex matched. The first sliding part and the second sliding part are both groove structures, and the first linkage part and the second linkage part are both convex structures, or the first linkage part and the second linkage part are both groove structures, and the first sliding part and the second sliding part are both convex structures. The principle is the same, the concave-convex structure is simple, and the assembly is labor-saving.

[0010] As an improvement, a third sliding part and a fourth sliding part are provided on the shell, the first baffle is slidably connected to the third sliding part through the first linkage part, and the second baffle is slidably connected to the fourth sliding part through the second linkage part. In this technical solution, the first baffle is connected to the third sliding part through the first linkage part to be slidably installed on the shell, the rotation of the cover body can drive the first baffle to slide along the third sliding part to approach or move away from the second baffle, the second baffle is connected to the fourth sliding part through the second linkage part to be slidably installed on the shell, the rotation of the cover body can drive the second baffle to slide along the fourth sliding part to approach or move away from the first baffle, the first baffle and the second baffle are moved closer to each other through relative sliding to close the pen inlet, and the first baffle and the second baffle are moved away from each other through relative sliding to open the pen inlet. The structural design is ingenious and labor-saving.

[0011] As an improvement, the third sliding part and the fourth sliding part are both in a straight line. In the technical solution, the first linkage part passes through the third sliding part to connect the first sliding part, and the user applies force to the cover body to make the cover body rotate, and the arc-shaped first sliding part acts on the first linkage part so that the first linkage part is forced to slide along the third sliding part in a straight line, thereby making the first baffle slide away from or close to the second baffle, and the second linkage part passes through the fourth sliding part to connect the second sliding part, and the user applies force to the cover body to make the cover body rotate, and the arc-shaped second sliding part acts on the second linkage part so that the second linkage part is forced to slide along the fourth sliding part in a straight line, thereby making the second baffle slide away from or close to the first baffle, and the structural design is ingenious and labor-saving to use.

[0012] As an improvement, the shell is provided with a first limiting portion and a second limiting portion, the first baffle is slidably installed in the first limiting portion, and the second baffle is slidably installed in the second limiting portion; the first limiting portion is provided with a first sliding groove, the first baffle is provided with a first sliding block connected to the first sliding groove, the second limiting portion is provided with a second sliding groove, and the second baffle is provided with a second sliding block connected to the second sliding groove. In the present technical solution, a first limiting portion capable of slidably installing the first baffle is provided in the shell to prevent the first baffle from being separated from the shell, so that the installation of the first baffle is more reliable and the sliding efficiency is higher; a second limiting portion capable of slidably installing the second baffle is provided in the shell to prevent the second limiting portion from being separated from the shell, so that the installation of the second baffle is more reliable and the sliding efficiency is higher; on the other hand, in the present solution, the first limiting portion and the second limiting portion can be provided independently of each other, or the first limiting portion and the second limiting portion can be provided in communication; a first sliding groove is provided in the first limiting portion and a first slider is provided in the first baffle, and the first slider cooperates with the first sliding groove to have a sliding guiding effect on the first baffle, so that the first baffle slides more smoothly in the first limiting portion and the sliding efficiency is higher; a second sliding groove is provided in the second limiting portion and a second slider is provided in the second baffle, and the second slider cooperates with the second sliding groove to have a sliding guiding effect on the second baffle, so that the second baffle slides more smoothly in the second limiting portion and the sliding efficiency is higher.

[0013] As an improvement, a locking position is provided on the shell, and a lock buckle adapted to the locking position is provided on the cover body, and the locking position is connected to the lock buckle to limit the rotation of the cover body relative to the shell. In this technical solution, the cover body drives the first baffle and the second baffle to open and close the pen inlet by rotating under force. By setting a locking position on the shell and a lock buckle on the cover body, the locking position and the lock buckle are elastically matched so that the cover body can be rotated and limited on the shell, so that the first baffle and the second baffle keep the pen inlet open or closed. The user can force the lock buckle to disengage from the locking position by applying force to the cover body, so as to rotate and unlock. The structure is simple and labor-saving.

[0014] As an improvement, the locking position is a groove structure, the lock buckle is a convex structure, and multiple lock buckles are arranged along the circumference of the cover body. In this technical solution, the locking position and the lock buckle are set as elastic concave-convex matching structures, which are simple in structure and labor-saving to use. In this solution, one locking position and multiple lock buckles can be set, and the lock buckles at different positions are respectively matched with the locking positions to position the cover body in different rotation states. The user rotates the cover body to switch the lock buckles at different positions to connect with the locking position, thereby switching the state of the pen inlet to open or close, meeting more usage requirements. Similarly, multiple locking positions and one lock buckle can be set; in this solution, the locking position can also be set as a convex structure and the lock buckle can be set as a groove structure.

[0015] As an improvement, a buckle is provided on the inner wall of the cover, a convex ring matching the buckle is provided on the shell, and the buckle is connected to the convex ring to limit the cover on the shell; the locking position is provided on the convex ring, and the lock buckle is provided on the buckle. In this technical solution, the cover is rotatably mounted on the shell, and the cover is mounted on the shell by connecting the buckle to the convex ring through the buckle by providing a buckle on the inner wall of the cover and a convex ring on the shell. The force on the cover can make the buckle rotate around the convex ring, and the rotation is more reliable and efficient, and the installation of the cover is simpler and more stable; the locking position is provided on the convex ring, and the lock buckle is provided on the buckle, so that when the buckle rotates around the convex ring, the locking position can directly cooperate with the lock buckle, and the structure is more compact and has higher strength.

[0016] The above technical solutions can be combined arbitrarily based on the common knowledge in this field. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a pencil sharpener according to the present application.

[0018] Figure 2 An exploded view of a pencil sharpener for this application.

[0019] Figure 3 Schematic diagram of the connection structure of the cover body, the first baffle and the second baffle in the present application.

[0020] Figure 4 Schematic diagram of the connection structure of the shell, the first baffle and the second baffle in the present application.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the first baffle and the second baffle in this application.

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the shell, the first baffle and the second baffle in the present application.

[0023] As shown in the figure: 1. Shell; 11. Third sliding part; 12. Fourth sliding part; 13. Locking position; 14. Convex ring; 15. First limiting part; 151. First slide groove; 16. Second limiting part; 161. Second slide groove; 2. Cover; 21. Pen inlet; 22. Guide part; 221. First sliding part; 222. Second sliding part; 23. Lock; 24. Buckle; 3. First baffle; 31. First linkage part; 32. First slider; 4. Second baffle; 41. Second linkage part; 42. Second slider. DETAILED DESCRIPTION

[0024] In order to better understand the present application, a more detailed description of various aspects of the present application will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and do not limit the scope of the present application in any way. Throughout the specification, the same figure numerals refer to the same elements.

[0025] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

[0026] It should also be understood that the terms “comprises,” “including,” “has,” “contains,” and “comprising,” when used in this specification, indicate the presence of the described features, integers, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, and / or combinations thereof.

[0027] like Figures 1 to 6As shown, the present application discloses a pencil sharpener, comprising a shell 1, in which a pencil sharpening mechanism is installed. The pencil sharpening mechanism is installed through the shell 1. A pen is inserted into the shell 1 and enters the pencil sharpening mechanism. The insertion direction is the pen feeding direction. The user rotates the pen so that the wood layer on the outside of the pen rotates relative to the blade of the pencil sharpening mechanism, so that the wood layer is cut off and the pen core is exposed. As the pen is continuously rotated and deepened, the pen core is gradually sharpened, and the cut pencil shavings are stored in the shell 1; a cover body 2 is rotatably installed on the shell 1, and a pen inlet 21 is provided on the cover body 2 for the pen to pass through and enter the shell 1. The cover body 2 is installed on the shell 1, and the pen inlet 21 is provided on the cover body 2 for the pen to pass through. The pen is inserted into the shell 1 through the pen inlet 21, and the pen inlet 21 connects the inside and outside of the shell 1. External debris and dust can easily enter the shell 1 through the pen inlet 21 to affect the normal operation of the pencil sharpening mechanism, and internal pencil shavings can easily leak from the pen inlet 21 to affect the storage environment; a cover body 2 is movably installed in the shell 1 A first baffle 3 and a second baffle 4 are provided, and the first baffle 3 and the second baffle 4 are both located at the pen inlet 21. The first baffle 3 and the second baffle 4 are both linked with the cover body 2. The cover body 2 is rotated under force to drive the first baffle 3 and the second baffle 4 to open and close the pen inlet 21. The first baffle 3 and the second baffle 4 are movably installed in the shell body 1. The first baffle 3 and the second baffle 4 are both located between the shell body 1 and the pen inlet 21. The first baffle 3 and the second baffle 4 can open and close the pen inlet 21 through movably matching, thereby isolating the pen inlet 21 from the inside of the shell body 1, preventing the pen inlet 21 from leaking chips, and preventing debris and dust from entering the shell body 1. The cover body 2 is rotatably installed on the shell body 1, and the cover body 2 is linked with the first baffle 3 and the second baffle 4. The cover body 2 is rotated relative to the shell body 1 under force, and the cover body 2 can drive the first baffle 3 and the second baffle 4 to move by rotating, thereby realizing opening and closing the pen inlet 21. The structural design is ingenious, the rotation opening and closing is labor-saving, and the structure is simple and easy to assemble.

[0028] More specifically, Figures 2 to 5As shown, the inner wall of the cover body 2 is provided with a guide portion 22, the first baffle 3 is provided with a first linkage portion 31 connected to the guide portion 22, and the second baffle 4 is provided with a second linkage portion 41 connected to the guide portion 22. The cover body 2 rotates to drive the first baffle 3 and the second baffle 4 to open and close the pen inlet 21 through the guide portion 22. The first baffle 3 and the second baffle 4 are both linked with the cover body 2. By providing the guide portion 22 on the inner wall of the cover body 2, the first linkage portion 31 is provided on the first baffle 3, and the second linkage portion 41 is provided on the second baffle 4. 1, the first blocking piece 3 is linked with the cover body 2 by connecting the first linkage part 31 with the guide part 22, and the rotation of the cover body 2 can drive the first blocking piece 3 to move closer to or away from the second blocking piece 4, and the second blocking piece 4 is linked with the cover body 2 by connecting the second linkage part 41 with the guide part 22, and the rotation of the cover body 2 can drive the second blocking piece 4 to move closer to or away from the first blocking piece 3, and the linkage structure is simple and reliable; as a preferred embodiment, the guide part 22 is connected with the first linkage part 31 in a concave-convex matching manner, and the guide part 22 is connected with the second linkage part 41 in a concave-convex matching manner.

[0029] More specifically, Figure 2 and Figure 3 As shown, the guide portion 22 includes a first sliding portion 221 and a second sliding portion 222, the first sliding portion 221 is slidably connected to the first linkage portion 31, and the second sliding portion 222 is slidably connected to the second linkage portion 41. The guide portion 22 is composed of the first sliding portion 221 and the second sliding portion 222. The guide portion 22 is slidably connected to the first linkage portion 31 through the first sliding portion 221, and the first sliding portion 221 and the first linkage portion 31 are matched with each other in a concave-convex manner. The cover body 2 rotates to slide relative to the first sliding portion 221 and the first linkage portion 31, thereby driving the first baffle 3 to approach or move away from the second baffle 4, the guide portion 22 is slidably connected to the second linkage portion 41 through the second sliding portion 222, and the second sliding portion 222 and the second linkage portion 41 are matched with each other in a concave-convex manner. The cover body 2 rotates to slide relative to the second sliding portion 222 and the second linkage portion 41, thereby driving the second baffle 4 to approach or move away from the first baffle 3. The connection structure is simple and the assembly is labor-saving.

[0030] More specifically, Figure 2 and Figure 3 As shown, the first sliding portion 221 and the second sliding portion 222 are both arc-shaped. The first sliding portion 221 and the second sliding portion 222 are both arc-shaped, so that the rotation of the cover body 2 can drive the first baffle 3 to move closer to or away from the second baffle 4 through the arc-shaped first sliding portion 221, and drive the second baffle 4 to move closer to or away from the first baffle 3 through the arc-shaped second sliding portion 222. The structural design is ingenious.

[0031] More specifically, Figures 2 to 5As shown, the first sliding part 221 and the first linkage part 31 are matched with each other in a concave-convex manner, and the second sliding part 222 and the second linkage part 41 are matched with each other in a concave-convex manner; the first sliding part 221 and the second sliding part 222 are both groove structures, and the first linkage part 31 and the second linkage part 41 are both convex structures; or, the first sliding part 221 and the second sliding part 222 are both convex structures, and the first linkage part 31 and the second linkage part 41 are both groove structures; the principle is the same, the concave-convex structure is simple, and the assembly is labor-saving.

[0032] More specifically, Figure 4 As shown, a third sliding portion 11 and a fourth sliding portion 12 are provided on the shell 1, the first baffle 3 is slidably connected to the third sliding portion 11 through a first linkage portion 31, and the second baffle 4 is slidably connected to the fourth sliding portion 12 through a second linkage portion 41, and the first baffle 3 is connected to the third sliding portion 11 through the first linkage portion 31 so as to be slidably installed on the shell 1, and the rotation of the cover body 2 can drive the first baffle 3 to slide along the third sliding portion 11 to approach or move away from the second baffle 4, and the second baffle 4 is connected to the fourth sliding portion 12 through the second linkage portion 41 so as to be slidably installed on the shell 1, and the rotation of the cover body 2 can drive the second baffle 4 to slide along the fourth sliding portion 12 to approach or move away from the first baffle 3, the first baffle 3 and the second baffle 4 are moved closer to each other through relative sliding to close the pen inlet 21, and the first baffle 3 and the second baffle 4 are moved away from each other through relative sliding to open the pen inlet 21, and the structural design is ingenious and labor-saving to use.

[0033] More specifically, Figure 4 As shown, the third sliding portion 11 and the fourth sliding portion 12 are both in a straight line shape, the first linkage portion 31 passes through the third sliding portion 11 and is connected to the first sliding portion 221, the user applies force to the cover body 2 to rotate the cover body 2, the arc-shaped first sliding portion 221 acts on the first linkage portion 31 so that the first linkage portion 31 is forced to slide linearly along the third sliding portion 11, thereby causing the first blocking piece 3 to slide away from or close to the second blocking piece 4, the second linkage portion 41 passes through the fourth sliding portion 12 and is connected to the second sliding portion 222, the user applies force to the cover body 2 to rotate the cover body 2, the arc-shaped second sliding portion 222 acts on the second linkage portion 41 so that the second linkage portion 41 is forced to slide linearly along the fourth sliding portion 12, thereby causing the second blocking piece 4 to slide away from or close to the first blocking piece 3, the structural design is ingenious and labor-saving to use.

[0034] More specifically, Figure 6As shown, the shell 1 is provided with a first limiting portion 15 and a second limiting portion 16, and the first baffle 3 is slidably installed in the first limiting portion 15 to prevent the first baffle 3 from being separated from the shell 1, so that the installation of the first baffle 3 is more reliable and the sliding efficiency is higher, and the second baffle 4 is slidably installed in the second limiting portion 16 to prevent the second limiting portion 16 from being separated from the shell, so that the installation of the second baffle 4 is more reliable and the sliding efficiency is higher. On the other hand, in this solution, the first limiting portion 15 and the second limiting portion 16 can be set independently of each other, or the first limiting portion 15 and the second limiting portion 26 can be connected.

[0035] More specifically, Figure 6 As shown, the first limiting portion 15 is provided with a first slide groove 151, and the first baffle 3 is provided with a first slider 32 connected to the first slide groove 151. By providing the first slide groove 151 on the first limiting portion 15 and the first slider 32 on the first baffle 3, the first slider 32 cooperates with the first slide groove 151 to have a sliding guide effect on the first baffle 3, so that the first baffle 3 slides more smoothly in the first limiting portion 15 and the sliding efficiency is higher; the second limiting portion 16 is provided with a second slide groove 161, and the second baffle 4 is provided with a second slider 42 connected to the second slide groove 161. By providing the second slide groove 161 on the second limiting portion 16 and the second slider 42 on the second baffle 4, the second slider 42 cooperates with the second slide groove 161 to have a sliding guide effect on the second baffle 4, so that the second baffle 4 slides more smoothly in the second limiting portion 16 and the sliding efficiency is higher.

[0036] More specifically, Figures 2 to 4 As shown, a locking position 13 is provided on the shell 1, and a lock buckle 23 adapted to the locking position 13 is provided on the cover body 2. The locking position 13 is connected with the lock buckle 23 to limit the rotation of the cover body 2 relative to the shell 1. The cover body 2 drives the first baffle 3 and the second baffle 4 to open and close the pen inlet 21 by rotating under force. By setting the locking position 13 on the shell 1 and the lock buckle 23 on the cover body 2, the locking position 13 and the lock buckle 23 are elastically matched so that the cover body 2 can be rotatably limited on the shell 1, so that the first baffle 3 and the second baffle 4 keep the pen inlet 21 open or closed. The user can apply force to the cover body 2 to force the lock buckle 23 to disengage from the locking position 13 and rotate to unlock. The structure is simple and labor-saving to use.

[0037] More specifically, Figures 2 to 4As shown, the locking position 13 is a groove structure, and the lock buckle 23 is a convex structure. There are multiple lock buckles 23 arranged along the circumference of the cover body 2. The locking position 13 and the lock buckle 23 are set as elastic concave-convex matching structures. The structure is simple and labor-saving to use. In this scheme, one locking position 13 and multiple lock buckles 23 can be set. The lock buckles 23 at different positions are respectively matched with the locking position 13 to position the cover body 2 in different rotation states. The user rotates the cover body 2 to make the lock buckles 23 at different positions switch to connect with the locking position 13, thereby switching the pen inlet 21 to an open or closed state to meet more usage requirements. Similarly, multiple locking positions 13 and one lock buckle 23 can be set; or, the locking position 13 is a convex structure, and the lock buckle 23 is a groove structure. The principle is the same and will not be repeated.

[0038] More specifically, Figures 2 to 4 As shown, a buckle 24 is provided on the inner wall of the cover body 2, and a convex ring 14 adapted to the buckle 24 is provided on the shell 1. The buckle 24 is connected with the convex ring 14 to limit the cover body 2 on the shell 1, and the cover body 2 is rotatably installed on the shell 1. By providing the buckle 24 on the inner wall of the cover body 2 and the convex ring 14 on the shell 1, the cover body 2 is connected with the convex ring 14 through the buckle 24 and thus installed on the shell 1. The force on the cover body 2 can make the buckle 24 rotate around the convex ring 14, the rotation is more reliable and efficient, and the installation of the cover body 2 is simpler and more stable; the locking position 13 is provided on the convex ring 14, and the lock buckle 23 is provided on the buckle 24, so that when the buckle 24 rotates around the convex ring 14, the locking position 13 can be directly matched with the lock buckle 23, and the structure is more compact and the strength is higher.

[0039] The present application is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of the present application. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present application.

Claims

1. A pencil sharpener, comprising a housing (1), wherein a pencil sharpening mechanism is installed in the housing (1), characterized in that: A cover body (2) is rotatably mounted on the shell (1); a pen inlet (21) is provided on the cover body (2) for a pen to pass through and enter the shell (1); a first baffle (3) and a second baffle (4) are movably mounted in the shell (1); the first baffle (3) and the second baffle (4) are both located at the pen inlet (21); the first baffle (3) and the second baffle (4) are both linked to the cover body (2); the cover body (2) is rotated under force to drive the first baffle (3) and the second baffle (4) to open and close the pen inlet (21).

2. A pencil sharpener according to claim 1, characterized in that: The inner wall of the cover body (2) is provided with a guide portion (22), the first baffle (3) is provided with a first linkage portion (31) connected to the guide portion (22), and the second baffle (4) is provided with a second linkage portion (41) connected to the guide portion (22); the cover body (2) rotates to drive the first baffle (3) and the second baffle (4) to open and close the pen inlet (21) through the guide portion (22).

3. A pencil sharpener according to claim 2, characterized in that: The guide portion (22) comprises a first sliding portion (221) and a second sliding portion (222), wherein the first sliding portion (221) is slidably connected to the first linkage portion (31), and the second sliding portion (222) is slidably connected to the second linkage portion (41).

4. A pencil sharpener according to claim 3, characterized in that: The first sliding portion (221) and the second sliding portion (222) are both arc-shaped.

5. A pencil sharpener according to claim 3, characterized in that: The first sliding part (221) and the second sliding part (222) are both groove structures, and the first linkage part (31) and the second linkage part (41) are both convex structures; or, the first sliding part (221) and the second sliding part (222) are both convex structures, and the first linkage part (31) and the second linkage part (41) are both groove structures.

6. A pencil sharpener according to claim 2, characterized in that: The shell (1) is provided with a third sliding part (11) and a fourth sliding part (12); the first blocking piece (3) is slidably connected to the third sliding part (11) via a first linkage part (31); and the second blocking piece (4) is slidably connected to the fourth sliding part (12) via a second linkage part (41).

7. A pencil sharpener according to claim 6, characterized in that: The third sliding portion (11) and the fourth sliding portion (12) are both in a straight line shape.

8. A pencil sharpener according to claim 1 or 6, characterized in that: The shell (1) is provided with a first limiting portion (15) and a second limiting portion (16); the first blocking piece (3) is slidably installed in the first limiting portion (15), and the second blocking piece (4) is slidably installed in the second limiting portion (16); the first limiting portion (15) is provided with a first sliding groove (151), the first blocking piece (3) is provided with a first sliding block (32) connected to the first sliding groove (151), the second limiting portion (16) is provided with a second sliding groove (161), and the second blocking piece (4) is provided with a second sliding block (42) connected to the second sliding groove (161).

9. A pencil sharpener according to claim 1, characterized in that: The housing (1) is provided with a locking position (13), and the cover (2) is provided with a lock catch (23) adapted to the locking position (13); the locking position (13) is connected to the lock catch (23) to limit the rotation of the cover (2) relative to the housing (1).

10. A pencil sharpener according to claim 9, characterized in that: The locking position (13) is a groove structure, the locking buckle (23) is a protruding structure, and a plurality of the locking buckles (23) are arranged along the circumference of the cover body (2).

11. A pencil sharpener according to claim 9, characterized in that: The inner wall of the cover body (2) is provided with a buckle (24), the shell (1) is provided with a convex ring (14) adapted to the buckle (24), the buckle (24) is connected to the convex ring (14) to limit the cover body (2) on the shell (1); the locking position (13) is provided on the convex ring (14), and the lock buckle (23) is provided on the buckle (24).

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