Pencil sharpener and pencil

Abstract

The utility model relates to the field of stationery, and particularly discloses a pencil sharpener and a pencil, the pencil sharpener comprises a blade seat, a blade body and a pressing head sleeve arranged on the blade seat in a sleeving mode, the blade seat is provided with a bottom plane and a top face, the bottom plane and the top face are opposite in orientation, the bottom plane is provided with a cutting cavity, and the pressing head sleeve is arranged in the cutting cavity. A cutting cavity is formed in the top face of the blade seat, a chip groove communicated with the cutting cavity is formed in the side wall of the blade seat, a blade groove communicated with the cutting cavity is formed in the top face of the blade seat, the blade groove is used for allowing the blade body to be installed in, and a blocking block is arranged on the pressing head sleeve and inserted into an opening in the top face of the blade groove. The pencil sharpener has the effect of improving the assembly efficiency of the pencil sharpener.

Description

Technical Field

[0001] The present application relates to the field of stationery, and in particular to a pencil sharpener and a pen. Background Art

[0002] A pencil sharpener is a tool used to trim the tip of a pencil. It is usually made of metal or plastic. Compared to a knife, it can sharpen pencils or other drawing tools more conveniently and quickly to meet the needs of writing and drawing.

[0003] In related technology, Chinese patent publication number CN209096354U discloses a core sharpener and a mechanical pencil equipped with a core sharpener. The sharpener includes a snap cap, a blade, and a blade holder. The blade holder has a conical cavity and an inclined surface with a blade slot. The blade holder is positioned within the blade slot. Because the surface of the blade holder defining the cavity is flat, the surface of the blade holder defining the cavity faces downward during transport in automated production, ensuring smooth transport.

[0004] While the insert seat can be stably placed and transported, the bevel is tilted relative to the surface of the insert seat cavity, so the insert slots on the bevel are also tilted relative to the surface of the insert seat cavity. This means that the blades not only need to be tilted to align with the inclined insert slots, but also need to be installed perpendicular to the bevel. Furthermore, the area available for blade clamping is small, making automation more complex. Therefore, the blades are manually installed into the insert slots, which affects assembly efficiency and needs to be improved. Utility Model Content

[0005] In order to improve the assembly efficiency of a pencil sharpener, the present application provides a pencil sharpener and a pen.

[0006] In the first aspect, the present application provides a pencil sharpener adopting the following technical solution:

[0007] A pencil sharpener comprises a blade seat, a blade body and a snap cover mounted on the blade seat, wherein the blade seat is provided with a bottom plane and a top surface, the bottom plane and the top surface facing opposite directions, a cutting cavity is formed on the bottom plane, a chip removal groove communicating with the cutting cavity is formed on the side wall of the blade seat, a blade slot communicating with the cutting cavity is formed on the top surface, the blade slot is used for receiving the blade body, and a blocking block is provided on the snap cover, which is inserted into the opening of the blade slot on the top surface.

[0008] By adopting the above technical solution, when performing automatic assembly, the bottom plane is first placed downward on the transmission device, and then the blade body is clamped by a mechanical clamp or other device and the blade body is inserted into the blade slot through the blade slot opening on the top surface. Finally, the pressing head sleeve is placed on the blade seat by a mechanical clamp or other means, and the block is inserted into the blade slot and blocks the opening of the blade slot on the top surface, thereby restricting the blade from moving out of the blade slot. Compared with the core sharpener blade in the related art, which is difficult to install in an automated manner, the blade seat of the present application optimizes the structure of the blade slot, expands the clampable portion of the blade body, simplifies the installation of the blade body so that the blade body can be installed through automation, improves the assembly efficiency of the pencil sharpener of the present application, and reduces production costs.

[0009] Optionally, the blade slot is connected to the side wall of the blade seat provided with a chip removal groove, and a pressure block is provided on the pressing head cover, which covers the opening of the blade slot on the side wall of the blade seat and presses against the blade body.

[0010] By adopting this technical solution, once the insert pocket is connected to the sidewall of the insert holder, which is provided with a chip removal groove, the insert body can be directly installed vertically into the insert pocket, further simplifying the installation requirements of the insert body and facilitating automated installation of the insert body. The pressure block covers the opening of the insert pocket on the sidewall of the insert holder and presses against the insert body, thereby restricting the insert body from moving out of the insert pocket.

[0011] Optionally, part of the blade body extends out of the blade slot through an opening of the blade slot on the side wall of the blade seat, and one of the surfaces of the pressing block is a fixed surface, which is inclined and fits the surface of the blade body.

[0012] By adopting the above technical solution, compared with point contact, the blade body is fitted with the surface in the form of a surface, that is, the fixed surface is fitted with the surface of the blade body, which can effectively ensure the reliability of limiting the blade body by the pressure block and avoid deflection and shaking of the blade body when cutting the pen.

[0013] Optionally, a plurality of blocking blocks are provided.

[0014] By adopting the above technical solution and adding a plurality of blocking blocks, the limiting effect of the blade body is improved, and the structural strength of the blade body after installation is improved.

[0015] Optionally, a snap-fitting protrusion is provided on the outer wall of the blade seat, and a snap-fitting groove is provided on the inner wall of the press head cover, and the snap-fitting protrusion is snap-fitted with the snap-fitting groove.

[0016] By adopting the above technical solution, when assembling the blade holder and the press sleeve, the blade holder is inserted into the press sleeve, and the engaging protrusion on the blade holder is inserted into the press sleeve along with the blade holder until the engaging protrusion engages with the engaging groove, thereby connecting the blade holder and the press sleeve. In this arrangement, the connection between the blade holder and the press sleeve is completed by simply attaching the connecting sleeve to the blade holder, which has a simple structure and is easy to install.

[0017] Optionally, the inner wall of the press head cover is provided with a limit protrusion, and the limit protrusion and the engaging groove are arranged in sequence along the direction in which the blade holder is inserted into the press head cover.

[0018] By adopting the above technical solution, compared with directly opening a snap-fit ​​groove on the inner wall of the press head cover, the snap-fit ​​groove is enclosed by setting a limiting protrusion, so that the internal cross-sectional size of the press head cover can be expanded to avoid the situation where the snap-fit ​​protrusion and the inner wall of the press head cover are tightly pressed against each other and difficult to move, which helps to insert the blade seat into the press head cover.

[0019] Optionally, a material-saving groove is provided on the blade seat, and the material-saving groove is provided on the clamping protrusion. A deformable stabilizing protrusion is provided on the groove wall of the clamping groove, and the stabilizing protrusion extends into the material-saving groove and contacts the groove wall of the material-saving groove.

[0020] By adopting this technical solution, the provision of a material-saving groove not only saves material required for insert holder production, but also minimizes defects such as undermolding that can occur during injection molding. When the insert holder is inserted into the snap-on sleeve, the stabilizing protrusion deforms and extends into the material-saving groove, where it contacts the groove wall. This arrangement not only facilitates the molding of the insert holder but also ensures a reliable connection between the insert holder and the snap-on sleeve.

[0021] Optionally, a snap-fitting protrusion is provided on the inner wall of the snap-fitting cover, and a snap-fitting groove is provided on the outer wall of the blade seat, and the snap-fitting protrusion is snap-fitted with the snap-fitting groove.

[0022] By adopting the above technical solution, the snap-fit ​​protrusion is set on the inner wall of the press head cover. Even if a material-saving groove is opened, the snap-fit ​​protrusion can be directly inserted into the material-saving groove, thereby simplifying the connection structure between the blade seat and the press head cover.

[0023] Optionally, a pen-connecting cavity is provided on the press head cover, and a pen-connecting protrusion is provided on the cavity wall of the pen-connecting cavity.

[0024] By adopting the above technical solution, when connecting with the pen core or pen shaft, the pen core or pen shaft is inserted into the pen connecting cavity, the pen connecting protrusion is deformed and pressed against the pen core or pen shaft, so that the press head cover is connected to the pen.

[0025] In a second aspect, the present application provides a pencil sharpener that adopts the following technical solution:

[0026] A pencil sharpener comprises a pen holder and a pencil sharpener, wherein the pencil sharpener is connected to the pen holder.

[0027] By adopting the above technical solution, the pen including the pencil sharpener of the present application can be assembled automatically, with high assembly efficiency and low production cost. Therefore, the overall assembly efficiency of the pen is improved and the production cost is reduced.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. By adjusting the structure of the blade seat so that the blade slot is connected to the top surface and the side wall of the blade seat provided with the chip removal groove, the blade body can be directly installed into the blade slot in the vertical direction, simplifying the assembly method of the blade body and increasing the clamping space of the blade body. The blade body can then be installed in an automated manner, thereby improving the assembly efficiency of the pencil sharpener of the present application and reducing production costs.

[0030] 2. The blade body is fixed by means of a pressing block and a blocking block. The blade seat is inserted into the pressing head cover to complete the fixation of the blade body. The operation is simple.

[0031] 3. By cooperating among the snap-fit ​​protrusion, the snap-fit ​​groove, the material-saving groove and the stabilizing groove, the blade seat is fully inserted into the press head cover, thereby completing the connection between the blade seat and the press head cover. The connection is simple and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural diagram of an embodiment of the present application.

[0033] Figure 2 It is a structural schematic diagram highlighting the pencil sharpener in an embodiment of the present application.

[0034] Figure 3 It is a cross-sectional view of the pencil sharpener in the embodiment of the present application.

[0035] Figure 4 This is a structural schematic diagram highlighting the blade seat and the blade body in the embodiment of the present application.

[0036] Figure 5 It is a structural schematic diagram highlighting the snap-on headgear in an embodiment of the present application.

[0037] Description of reference numerals:

[0038] 1. Pen holder; 2. Press head cover; 21. Pen connection cavity; 211. Pen connection protrusion; 22. Mounting cavity; 23. Chip discharge groove; 24. Press block; 241. Fixing surface; 25. Blocking block; 26. Limiting protrusion; 27. Snap-fit ​​groove; 28. Stabilizing protrusion; 3. Blade seat; 31. Bottom plane; 32. Top surface; 33. Cutting cavity; 34. Chip discharge groove; 35. Blade slot; 36. Snap-fit ​​protrusion; 37. Material saving groove; 4. Blade body. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-5 This application is described in further detail.

[0040] The embodiment of the present application discloses a pen. Figure 1 、 Figure 2 The pen includes a pen holder 1 and a pencil sharpener. The pencil sharpener is inserted into the pen holder 1 and includes a snap cap 2, a blade seat 3 and a blade body 4.

[0041] Reference Figure 1 、 Figure 3 A pen connection cavity 21 is defined on one surface of the press cap 2, and the end of the press cap 2 provided with the pen connection cavity 21 is inserted into the pen barrel 1. The pen connection cavity 21 has a circular cross-section, and three pen connection protrusions 211 are provided on the circumferential inner wall of the pen connection cavity 21, evenly distributed around the axis of the pen connection cavity 21. The pen connection protrusions 211 and the press cap 2 are integrally molded from plastic, so both the pen connection protrusions 211 and the press cap 2 can slightly deform under stress.

[0042] Reference Figure 4 The blade seat 3 is provided with a bottom plane 31 and a top plane 32, and the bottom plane 31 and the top plane 32 face opposite to each other. When the pencil sharpener is automatically assembled, the bottom plane 31 is placed on the transmission device with its bottom plane 31 facing downward. A cutting cavity 33 is provided on the bottom plane 31, and the cutting cavity 33 is conical and is used for inserting a pencil. One of the side walls of the blade seat 3 is inclined, and a chip groove 34 is provided on the inclined side wall of the blade seat 3, and the chip groove 34 is connected to the cutting cavity 33. A blade groove 35 is provided on the top surface 32, and the blade groove 35 is connected to the side wall of the blade seat 3 provided with the chip groove 34, and the blade groove 35 is connected to both the chip groove 34 and the cutting cavity 33.

[0043] Reference Figure 4 The blade body 4 is installed in the blade groove 35, and the pencil shavings cut by the blade body 4 are discharged through the chip discharge groove 34. Part of the blade body 4 extends out of the blade groove 35 through the opening of the blade groove 35 on the side wall of the blade seat 3, that is, the thickness of the blade body 4 is greater than the depth of the blade groove 35.

[0044] Reference Figure 3 、 Figure 5The surface of the press head cover 2 facing away from the opening of the pen cavity 21 is provided with a mounting cavity 22 for inserting the blade holder 3, that is, the press head cover 2 is mounted on the blade holder 3. The outer wall of the press head cover 2 is provided with a chip discharge groove 23 connected to the mounting cavity 22. The chip discharge groove 23 is aligned with and connected to the chip discharge cavity so that pencil shavings discharged from the chip discharge cavity can be discharged outside the press head cover 2 through the chip discharge cavity.

[0045] Reference Figure 3 、 Figure 5 A pressure block 24 and two blocking blocks 25 are provided in the mounting cavity 22. The pressure block 24 and the blocking blocks 25 are integrally formed with the press head cover 2. The pressure block 24 can be slightly deformed when subjected to force, and the pressure block 24 covers the opening of the blade slot 35 on the side wall of the blade seat 3. The surface of the pressure block 24 facing the blade body 4 is a fixed surface 241. The fixed surface 241 is inclined and fits the blade body 4. Both blocking blocks 25 are inserted into the opening of the blade slot 35 on the top surface 32 and contact the blade body 4. The blocking blocks 25 restrict the blade body 4 from moving out of the blade slot 35 from the opening on the top surface 32 of the blade slot 35. The blocking blocks 25 and the pressure block 24 cooperate to restrict the movement of the blade body 4 in the blade slot 35.

[0046] Reference Figure 3 、 Figure 4 The side wall of the blade seat 3 is integrally formed with a clamping protrusion 36, which can be slightly deformed when subjected to force. A material-saving groove 37 is opened on the side wall of the blade seat 3, and the material-saving groove 37 passes through part of the clamping protrusion 36.

[0047] Reference Figure 3 、 Figure 5 A limiting protrusion 26 is integrally formed on the wall of the mounting cavity 22, and the limiting protrusion 26 can also be slightly deformed under force. The limiting protrusion 26 and the wall of the mounting cavity 22 enclose a snap-fit ​​groove 27. The limiting protrusion 26 and the snap-fit ​​groove 27 are arranged in sequence along the direction in which the blade seat 3 is inserted into the mounting cavity 22, and the snap-fit ​​protrusion 36 snaps into engagement with the snap-fit ​​groove 27. A stabilizing protrusion 28 is integrally formed on the wall of the snap-fit ​​groove 27, and the stabilizing protrusion 28 can be slightly deformed under force. The stabilizing protrusion 28 extends into the material-saving groove 37 and contacts the wall of the material-saving groove 37.

[0048] In other embodiments, the snap-fit ​​protrusion 36 can also be integrally formed on the inner wall of the mounting cavity 22, and the snap-fit ​​groove 27 can also be correspondingly opened on the side wall of the blade seat 3. Any method in which the snap-fit ​​protrusion 36 can snap-fit ​​with the snap-fit ​​groove 27 after the blade seat 3 is inserted into the mounting cavity 22 is acceptable.

[0049] The pen assembly principle of the present embodiment is as follows: When assembling the pencil sharpener, first place the bottom surface 31 downward on the transmission device. Then, use a mechanical clamp or other means to tilt and clamp the blade body 4 and insert the blade body 4 vertically downward into the blade slot 35. Finally, the press head cover 2 is placed on the blade seat 3. The snap-fit ​​protrusion 36 engages with the snap-fit ​​groove 27, the limiting protrusion 26 contacts the material-saving groove 37, the blocking block 25 is inserted into the blade slot 35, and the pressing block 24 presses against the blade body 4. This connects the press head cover 2 to the blade seat 3 and secures the blade body 4. The assembled pencil sharpener is then inserted into the pen holder 1, completing the assembly of the pen.

[0050] Such an arrangement reduces the difficulty of assembling the pencil sharpener, enables the pencil sharpener to be fully automatically assembled, improves the assembly efficiency of the pencil sharpener and the pen with the pencil sharpener, and reduces the production cost.

[0051] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A pencil sharpener comprising a blade holder (3), a blade body (4), and a snap cap (2) sleeved on the blade holder (3), characterized in that: The blade seat (3) is provided with a bottom plane (31) and a top surface (32), the bottom plane (31) and the top surface (32) are oriented in opposite directions, a cutting cavity (33) is provided on the bottom plane (31), a chip removal groove (34) communicating with the cutting cavity (33) is provided on the side wall of the blade seat (3), a blade groove (35) communicating with the cutting cavity (33) is provided on the top surface (32), the blade groove (35) is used for inserting the blade body (4), and a blocking block (25) is provided on the pressing head cover (2), and the blocking block (25) is inserted into the opening of the blade groove (35) on the top surface (32).

2. A pencil sharpener according to claim 1, characterized in that: The blade slot (35) is connected to the side wall of the blade seat (3) provided with a chip removal groove (34), and a pressing block (24) is provided on the pressing head cover (2). The pressing block (24) covers the opening of the blade slot (35) on the side wall of the blade seat (3) and presses against the blade body (4).

3. A pencil sharpener according to claim 2, characterized in that: Part of the blade body (4) extends out of the blade slot (35) through an opening of the blade slot (35) on the side wall of the blade seat (3); one of the surfaces of the pressing block (24) is a fixed surface (241); the fixed surface (241) is inclined and fits the surface of the blade body (4).

4. The pencil sharpener according to claim 1, characterized in that: A plurality of blocking blocks (25) are provided.

5. The pencil sharpener according to claim 1, characterized in that: A snap-fitting protrusion (36) is provided on the outer wall of the blade seat (3), and a snap-fitting groove (27) is provided on the inner wall of the press head cover (2), and the snap-fitting protrusion (36) is snap-fitted with the snap-fitting groove (27).

6. The pencil sharpener according to claim 5, characterized in that: The inner wall of the press head cover (2) is provided with an upper limit protrusion (26), and the upper limit protrusion (26) and the engaging groove (27) are arranged in sequence along the direction in which the blade seat (3) is inserted into the press head cover (2).

7. A pencil sharpener according to claim 6, characterized in that: The blade seat (3) is provided with a material-saving groove (37), and the material-saving groove (37) is provided on the clamping protrusion (36). The groove wall of the clamping groove (27) is provided with a deformable stabilizing protrusion (28), and the stabilizing protrusion (28) extends into the material-saving groove (37) and contacts the groove wall of the material-saving groove (37).

8. The pencil sharpener according to claim 1, characterized in that: A snap-fitting protrusion (36) is provided on the inner wall of the snap-fitting cover (2), and a snap-fitting groove (27) is provided on the outer wall of the blade seat (3). The snap-fitting protrusion (36) is snap-fitted with the snap-fitting groove (27).

9. The pencil sharpener according to claim 1, characterized in that: A pen-connecting cavity (21) is provided on the press head cover (2), and a pen-connecting protrusion (211) is provided on the cavity wall of the pen-connecting cavity (21).

10. A pen comprising a penholder (1), characterized in that: It also comprises a pencil sharpener according to any one of claims 1 to 9, wherein the pencil sharpener is connected to the pen holder (1).

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