CN218986193U - Cutting mechanism of pencil sharpener and pencil sharpener - Google Patents
Cutting mechanism of pencil sharpener and pencil sharpener Download PDFInfo
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- CN218986193U CN218986193U CN202221678666.9U CN202221678666U CN218986193U CN 218986193 U CN218986193 U CN 218986193U CN 202221678666 U CN202221678666 U CN 202221678666U CN 218986193 U CN218986193 U CN 218986193U
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Abstract
The utility model relates to a technique of a pencil sharpener, in particular to a pencil sharpener cutting mechanism and a pencil sharpener. The hob is arranged on the cutting frame, an external tooth matched with the internal tooth of the cutting seat is arranged at the end of the hob, close to the cutting frame, of the hob, and the hob is in running fit with the cutting seat through the meshing of the external tooth and the internal tooth. The cutting edge is prevented from being directly contacted with the internal teeth, the internal teeth are protected from being scratched, and the service life is prolonged. And the hob is shorter, the whole structure of the device is compact and simple, and the cost is saved. The periphery wall of the cutting seat is provided with bulges and limiting lugs at intervals, so that the cutting seat is prevented from rotating along the axial direction. The device can be used for both hand-operated and twisting type, and has wide application range and strong applicability.
Description
Technical Field
The utility model relates to the field of pencil sharpening tools, in particular to a cutting mechanism of a pencil sharpener and the pencil sharpener.
Background
The pencil sharpener is a common stationery, when the pencil sharpener enters the market at the earliest, the pencil sharpener is only the most basic pencil sharpening tool, however, along with the increase of the pencil use requirement, people have higher requirements on the quality and the speed of sharpening pencils of the pencil sharpener, therefore, the pencil sharpener of an automatic pencil sharpener is developed, at present, no matter a hand-operated or electric automatic pencil sharpener is provided with a support plate and a hob in the interior of a shell, a rotating shaft penetrates through the hob to connect the hob on the support plate, and a driving gear meshed with a driving device is further arranged on the hob, so that the pencil sharpener has certain defects although being commonly applied to the hand-operated or electric pencil sharpener: 1. in the whole pencil sharpener, the supporting plate is matched with the hob, a plurality of parts are needed for installation, the core matching structure for pencil sharpening is still complex, the failure rate and the maintenance difficulty are increased, and the production cost is increased; 2. the assembly gaps exist among the parts, and the residual lead core powder and wood dust after pencil sharpening can be filled into the gaps, so that the difficulty of cleaning is increased, abnormal abrasion of a cutter head can be caused for a long time, and the service life of the whole pencil sharpener is shortened; 3. the clearance between the transmission gear and the hob can cause the forward and backward bouncing in the rotating process of the hob, and the bouncing directly causes great noise when pencil sharpening, so that the use experience is poor.
In the prior art, a cutter frame is rotationally arranged on a gear seat, a hob is arranged on the cutter frame, a plurality of blades which extend spirally from top to bottom and are arranged at intervals along the circumferential direction of the hob are arranged on the peripheral wall of the hob, a plurality of tooth pawls matched with the blades are arranged on the inner peripheral wall of the gear seat at intervals, and the hob is in rotary fit with the gear seat through the engagement of the blades and the tooth pawls. The cutting mechanism has the advantages that although the cutting mechanism has a certain advance, the hob is still overlong, the assembly gap is larger, the outer wall of the gear seat is smooth and easy to rotate along the axial direction, the cutting efficiency is affected, the inclination angle of the tooth claw relative to the axis of the gear seat is smaller, the cutting edge is in direct contact with the tooth claw, the tooth claw is easy to wear, and the service life is shortened.
Disclosure of Invention
Embodiments of the present utility model aim to solve at least one of the technical problems existing in the prior art or related technologies.
Therefore, an object of the present utility model is to provide a cutting mechanism of a pencil sharpener and a pencil sharpener.
In order to achieve the above object, the present utility model provides a cutting mechanism of a pencil sharpener and a pencil sharpener, comprising:
a cutting mechanism of a pencil sharpener, comprising:
the cutting seat is provided with internal teeth on the inner peripheral wall;
a cutting rack mounted on the cutting seat and coaxial with the cutting seat;
and the hob is arranged on the cutting frame, and is provided with external teeth which are meshed with the internal teeth.
In addition, the cutting mechanism of the pencil sharpener in the technical scheme provided by the embodiment of the utility model can also have the following additional technical characteristics:
in one technical scheme of the utility model, the cutting seat is provided with a first through hole, the cutting frame is arranged in the first through hole in a penetrating way, and the cutting frame can rotate relative to the cutting seat.
In one technical scheme of the utility model, the cutting rack further comprises a first support plate and a second support plate, wherein the first support plate and the second support plate are respectively connected to the same side of the cutting rack, and a second through hole is formed in the first support plate and the second support plate;
the hob is provided with a pin shaft, the pin shaft sequentially penetrates through the second through holes of the first support plate and the second support plate, and the hob can rotate relative to the pin shaft.
In one aspect of the present utility model, the hob includes:
the external teeth are arranged at one end of the hob close to the cutting frame;
the cutting edges are arranged at one end of the hob far away from the cutting frame, and the cutting edges are spirally coiled and are arranged at intervals along the circumferential direction of the hob.
In one technical scheme of the utility model, the installation included angle range alpha of the hob relative to the rotating shaft of the cutting frame is 25-30 degrees, and the spiral angle beta of the cutting edge relative to the hob axis is 40-45 degrees.
In one aspect of the present utility model, the internal teeth have an inclination angle ranging from 25 ° to 30 ° with respect to the axis of the cutting seat.
In one technical scheme of the utility model, one end of the cutting frame, which is far away from the cutting seat, is provided with an opening, and the opening is used for inserting a pencil; threads are arranged at one end, close to the cutting seat, of the cutting frame; limiting check rings are arranged at two ends of the cutting frame; limiting reinforcing ribs are arranged on the cutting frame in the axial direction.
In one technical scheme of the utility model, the axial length of the hob is 15-19 mm.
In one embodiment of the present utility model, the method further comprises:
the plurality of the bulges are arranged on the side wall of the cutting seat at intervals, and the bulges are far away from the cutting frame;
the cutting tool comprises a cutting seat, a plurality of limiting lugs and a plurality of cutting blocks, wherein the limiting lugs are arranged on the side wall of the cutting seat at intervals, the limiting lugs are close to the peripheral wall of the cutting frame at intervals and are provided with protrusions, and the peripheral wall of the cutting seat is also provided with the limiting lugs.
A pencil sharpener has a cutting mechanism as described above.
Compared with the prior art, the utility model at least comprises the following beneficial effects:
the embodiment of the application provides a cutting mechanism of pencil sharpener and pencil sharpener is provided with cutting seat, cutting frame and hobbing cutter, and wherein, the cutting frame sets up on the cutting seat and can rotate relative the cutting seat, and the hobbing cutter sets up on the cutting frame, the nearly cutting frame end of hobbing cutter be provided with internal tooth assorted external tooth, the hobbing cutter pass through the external tooth with the meshing of internal tooth with cutting seat normal running fit. The cutter blade is prevented from being directly contacted with the internal teeth, the internal teeth are protected from being scratched, the service life of the cutter blade is prolonged, the size of the hob is short, the whole structure of the device is compact and simple, and the cost is saved. The periphery wall of the cutting seat is provided with bulges and limiting lugs at intervals, so that the cutting seat is prevented from rotating along the axial direction. The device can be used for both hand-operated and twisting type, and has wide application range and strong applicability.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 shows a schematic view of the overall structure of a cutting mechanism provided in accordance with one embodiment of the present utility model;
FIG. 2 illustrates an assembled schematic view of a cutting mechanism provided in accordance with one embodiment of the present utility model;
FIG. 3 illustrates a schematic view of an angle α of a hob and a cutting frame in a cutting mechanism according to an embodiment of the present utility model;
FIG. 4 shows a schematic view of the angle of the helix angle β of the blade relative to the central axis of the hob in a cutting mechanism according to one embodiment of the present utility model;
wherein, the correspondence between the reference numerals and the component names in fig. 1 to 4 is:
100 cutting seats, 101 internal teeth, 102 first through holes, 103 bulges, 104 limit bumps, 200 cutting frames, 201 first support plates, 202 second support plates, 203 second through holes, 204 openings, 205 limit check rings, 206 limit reinforcing ribs, 300 hob cutters, 301 pin shafts, 302 external teeth and 303 cutting edges.
Detailed Description
The present utility model is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the utility model by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 and 2, according to an embodiment of the present application, there is provided a cutting mechanism of a pencil sharpener, including: a cutting seat 100 having internal teeth 101 provided on an inner peripheral wall thereof; a cutting holder 200 mounted on the cutting seat 100 and coaxial with the cutting seat 100; hob 300 is provided on cutting frame 200, and hob 300 is provided with external teeth 302, external teeth 302 meshing with internal teeth 101.
It will be appreciated that the cutting mechanism of the pencil sharpener according to the present embodiment is provided with the cutting holder 100, the cutting frame 200 and the hob 300, wherein the cutting frame 200 is mounted on the cutting holder 100 and is coaxial with the cutting holder 100, ensuring that both will not be eccentric during rotation, thereby completely sharpening the pencil. The hob 300 is provided on the cutting frame 200 for cutting during rotation, thereby improving the quality of the pencil and cutting the pencil with proper length and thickness. The inner peripheral wall of the cutting seat 100 is provided with a plurality of inner teeth 101 at intervals, the peripheral wall of the hob 300 is composed of a cutting edge 303 and outer teeth 302, wherein the outer teeth 302 correspond to the inner teeth 101 of the cutting seat 100, the outer teeth 302 and the inner teeth 101 are meshed with each other to form a gear mechanism, and the hob 300 also rotates relative to the cutting seat 100 in the rotating process.
In some examples, as shown in fig. 1 and 2, the cutting seat 100 is provided with a first through hole 102, and the cutting frame 200 is disposed through the first through hole 102, and the cutting frame 200 may rotate relative to the cutting seat 100.
It will be appreciated that one end of the cutting holder 200 passes through the first through hole 102 in the center of the cutting seat 100, so that the cutting holder 200 is coaxial with the cutting seat 100, and thus the coaxial relative rotation of the two can be facilitated.
In some examples, as shown in fig. 1 and 2, further comprising: the first support plate 201 and the second support plate 202 are respectively connected to the same side of the cutting frame 200, and the first support plate 201 and the second support plate 202 are provided with second through holes 203; the hob 300 is provided with a pin 301, the pin 301 sequentially passes through the second through holes 203 of the first support plate 201 and the second support plate 202, and the hob 300 can rotate relative to the pin 301.
It will be appreciated that pin 301 extends axially through hob 300, and that hob 300 may rotate relative to pin 301. In order to facilitate the rotation of the hob 300, the first support plate 201 and the second support plate 202 on the same side are provided with second through holes 203 which are respectively matched and fixed with two ends of the pin shaft 301. The hob 300 is thus mounted on the cutting frame 200 and can be rotated to cut a pencil.
In some examples, as shown in fig. 1 and 2, further comprising: the external teeth 302 are arranged at one end of the hob 300 close to the cutting frame 200, and the external teeth 302 are meshed with the internal teeth 101; the plurality of cutting edges 303 are provided at an end of the hob 300 remote from the cutting seat 100, and the plurality of cutting edges 303 are spirally wound and spaced apart along the circumference of the hob 300.
It will be appreciated that the peripheral wall of the hob 300 is formed by the cutting edge 303 and the external tooth 302, wherein the external tooth 302 corresponds to the internal tooth 101 of the cutting seat 100, and the external tooth 302 and the internal tooth 101 are meshed with each other to form a gear mechanism, the hob 300 also rotates relative to the cutting seat 100 during rotation, and the cutting edge 303 is prevented from directly contacting the internal tooth 101, so that the internal tooth 101 can be better protected from damage, the cutting edge 303 is also protected, and the service life of the device is prolonged.
In some examples, as shown in fig. 3 and 4, the included angle of the hob 300 relative to the axis of rotation of the cutting frame 200 ranges from 25 ° to 30 °, and the helix angle β of the blade 303 relative to the axis of the hob 300 ranges from 35 ° to 50 °.
It will be appreciated that the included angle of the hob 300 relative to the axis of rotation of the cutting frame 200 is in the range of α, and in particular 25 ° to 30 °. Such an angle facilitates installation and rotation of hob 300. If the angle is small, the pencil point cut is too slender, is easily broken during cutting, and has low cutting efficiency. If the angle is too large, the sharpened nib is too thick, the pencil needs to be cut again soon, which affects the use efficiency, and the blade 303 is also easily hung on the cutting frame 200, damaging the cutter and the device, which affects the service life.
It will be appreciated that the angle of the helix of blade 303 relative to the axis of hob 300 will range from beta, specifically 35 deg. to 50 deg., and is designed to cut pencil more effectively. If the angle is too small, larger cutting force needs to be provided, and the difficulty is improved. If the angle is too small, the required length of the blade 303 increases, wasting material and increasing costs.
In some examples, as shown in fig. 3 and 4, the internal teeth 101 are inclined at an angle ranging from 25 ° to 30 ° with respect to the axis of the cutting seat 100.
It will be appreciated that to facilitate rotation of the hob 300, the external teeth 302 of the hob 300 are inclined at the same angle α, i.e. 25 ° to 30 °, relative to the axis of the cutting block 100, and therefore the internal teeth 101 are inclined at an angle in the range 25 ° to 30 ° relative to the axis of the cutting block 100.
In some examples, as shown in fig. 1 and 2, an end of the cutting frame 200 remote from the cutting seat 100 is provided with an opening 204, the opening 204 being for insertion of a pencil; one end of the cutting frame 200, which is close to the cutting seat 100, is provided with threads; limiting check rings 205 are arranged at both ends of the cutting frame 200; the cutting frame 200 is provided with a limit rib 206 in an axial direction.
It will be appreciated that to facilitate pencil insertion, the end of the cutting frame 200 remote from the cutting seat 100 is provided with an opening 204 for pencil insertion. Limiting retainers 205 are provided at both ends to prevent axial movement of the cutting frame 200. Threads are provided on the proximal end of the cutting block 100 to facilitate access of the cutting frame 200 to the pencil sharpener.
In some examples, as shown in fig. 1 and 2, the axial length of hob 300 is 15-19 mm.
It will be appreciated that the axial length of the hob 300 is set to 15 to 19mm in order to make the overall device compact and to improve the cutting efficiency.
In some examples, as shown in fig. 1 and 2, further comprising: a plurality of protrusions 103 are spaced apart from each other on the side wall of the cutting seat 100, the protrusions 103 being spaced apart from the cutting frame 200; the limiting lugs 104 are arranged on the side wall of the cutting seat 100 at intervals, and the limiting lugs 104 are close to the cutting frame 200.
It will be appreciated that the peripheral wall of the cutting insert 100 is provided with spaced projections 103 which increase the force contact and prevent circumferential rotation of the cutting insert 100. The limiting projections 104 are disposed on the outer peripheral wall of the cutting seat 100 in a relative manner, and limit the cutting seat 100 to prevent the cutting seat 100 from rotating in the circumferential direction.
An exemplary rotary pencil sharpener as shown in fig. 1-4, comprising: a cutting seat 100 having internal teeth 101 provided on an inner peripheral wall thereof; a cutting holder 200 mounted on the cutting seat 100 and coaxial with the cutting seat 100; hob 300 is provided on cutting frame 200, and hob 300 is provided with external teeth 302, external teeth 302 meshing with internal teeth 101. The cutting seat 100 is provided with a first through hole 102, the cutting frame 200 is arranged through the first through hole 102, and the cutting frame 200 can rotate relative to the cutting seat 100. The first support plate 201 and the second support plate 202 are respectively connected to the same side of the cutting frame 200, and the first support plate 201 and the second support plate 202 are provided with second through holes 203; the hob 300 is provided with a pin 301, the pin 301 sequentially passes through the second through holes 203 of the first support plate 201 and the second support plate 202, and the hob 300 can rotate relative to the pin 301. The external teeth 302 are arranged at one end of the hob 300 close to the cutting frame 200, and the external teeth 302 are meshed with the internal teeth 101; the plurality of cutting edges 303 are provided at an end of the hob 300 remote from the cutting seat 100, and the plurality of cutting edges 303 are spirally wound and spaced apart along the circumference of the hob 300. The included angle α of the hob 300 with respect to the rotation axis of the cutting frame 200 is in the range of 25 ° to 30 °, and the helix angle β of the blade 303 with respect to the axis of the hob 300 is in the range of 35 ° to 45 °. The inclination angle of the internal teeth 101 with respect to the axis of the cutting seat 100 ranges from 25 ° to 30 °. The end of the cutting frame 200 remote from the cutting seat 100 is provided with an opening 204, and the opening 204 is used for inserting a pencil; one end of the cutting frame 200, which is close to the cutting seat 100, is provided with threads; limiting check rings 205 are arranged at both ends of the cutting frame 200; the cutting frame 200 is provided with a limit rib 206 in an axial direction. The axial length of the hob 300 is 15 to 19mm. A plurality of protrusions 103 are spaced apart from each other on the side wall of the cutting seat 100, the protrusions 103 being spaced apart from the cutting frame 200; the limiting lugs 104 are arranged on the side wall of the cutting seat 100 at intervals, and the limiting lugs 104 are close to the cutting frame 200.
In use, the cutting block 100 is rotated, and the internal teeth 101 of the cutting block 100 drive the external teeth 302 of the hob 300, so that the hob 300 rotates, and the pencil on the cutting frame 200 is cut.
An exemplary, hand-operated pencil sharpener as shown in fig. 1-4, includes: a cutting seat 100 fixedly installed in a housing of the pencil sharpener, and having internal teeth 101 formed on an inner circumferential wall thereof; a cutting holder 200 mounted on the cutting seat 100 and coaxial with the cutting seat 100; hob 300 is provided on cutting frame 200, and hob 300 is provided with external teeth 302, external teeth 302 meshing with internal teeth 101. The cutting seat 100 is provided with a first through hole 102, the cutting frame 200 is arranged through the first through hole 102, and the cutting frame 200 can rotate relative to the cutting seat 100. The first support plate 201 and the second support plate 202 are respectively connected to the same side of the cutting frame 200, and the first support plate 201 and the second support plate 202 are provided with second through holes 203; the hob 300 is provided with a pin 301, the pin 301 sequentially passes through the second through holes 203 of the first support plate 201 and the second support plate 202, and the hob 300 can rotate relative to the pin 301. The external teeth 302 are arranged at one end of the hob 300 close to the cutting frame 200, and the external teeth 302 are meshed with the internal teeth 101; the plurality of cutting edges 303 are provided at an end of the hob 300 remote from the cutting seat 100, and the plurality of cutting edges 303 are spirally wound and spaced apart along the circumference of the hob 300. The included angle α of the hob 300 with respect to the rotation axis of the cutting frame 200 is in the range of 25 ° to 30 °, and the helix angle β of the blade 303 with respect to the axis of the hob 300 is in the range of 40 ° to 50 °. The inclination angle of the internal teeth 101 with respect to the axis of the cutting seat 100 ranges from 25 ° to 30 °. The end of the cutting frame 200 remote from the cutting seat 100 is provided with an opening 204, and the opening 204 is used for inserting a pencil; the end of the cutting frame 200, which is close to the cutting seat 100, is provided with threads, and the cutting frame 200 is connected into a crank handle of the pencil sharpener through the threads; limiting check rings 205 are arranged at both ends of the cutting frame 200; the cutting frame 200 is provided with a limit rib 206 in an axial direction. The axial length of the hob 300 is 15 to 19mm. A plurality of protrusions 103 are spaced apart from each other on the side wall of the cutting seat 100, the protrusions 103 being spaced apart from the cutting frame 200; the limiting lugs 104 are arranged on the side wall of the cutting seat 100 at intervals, and the limiting lugs 104 are close to the cutting frame 200.
In use, the crank handle is rotated, and the cutting frame 200 is rotated, driving the hob 300 on the cutting frame 200 to rotate, thereby cutting the pencil.
In the description of the present utility model, the term "plurality" means two or more, unless explicitly defined otherwise, the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model; the terms "coupled," "mounted," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present utility model, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In the present utility model, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A cutting mechanism of a pencil sharpener, comprising:
the cutting seat is provided with internal teeth on the inner peripheral wall;
a cutting rack mounted on the cutting seat and coaxial with the cutting seat;
and the hob is arranged on the cutting frame, and is provided with external teeth which are meshed with the internal teeth.
2. The cutting mechanism of claim 1, wherein the cutting seat defines a first through hole, the cutting frame is disposed through the first through hole, and the cutting frame is rotatable relative to the cutting seat.
3. The cutting mechanism of claim 1, further comprising:
the first support plate and the second support plate are respectively connected to the same side of the cutting frame, and second through holes are formed in the first support plate and the second support plate;
the hob is provided with a pin shaft, the pin shaft sequentially penetrates through the second through holes of the first support plate and the second support plate, and the hob can rotate relative to the pin shaft.
4. The cutting mechanism of claim 1, further comprising:
the external teeth are arranged at one end of the hob close to the cutting frame;
the cutting edges are arranged at one end of the hob far away from the cutting frame, and the cutting edges are spirally coiled and are arranged at intervals along the circumferential direction of the hob.
5. The cutting mechanism of claim 4, wherein the included angle of the hob with respect to the axis of rotation of the cutting frame ranges from 25 ° to 30 °, and the helix angle β of the cutting edge with respect to the hob axis ranges from 40 ° to 45 °.
6. The cutting mechanism of claim 5, wherein the internal teeth have an inclination angle in the range of 25 ° to 30 ° with respect to the cutting seat axis.
7. The cutting mechanism of claim 1, wherein an end of the cutting frame remote from the cutting seat is provided with an opening for insertion of a pencil; threads are arranged at one end, close to the cutting seat, of the cutting frame; limiting check rings are arranged at two ends of the cutting frame; limiting reinforcing ribs are arranged on the cutting frame in the axial direction.
8. The cutting mechanism of claim 1, wherein the axial length of the hob is 15-19 mm.
9. The cutting mechanism of claim 1, further comprising:
the plurality of the bulges are arranged on the side wall of the cutting seat at intervals, and the bulges are far away from the cutting frame;
the limiting lugs are arranged on the side wall of the cutting seat at intervals, and are close to the cutting frame.
10. A pencil sharpener characterized by having a cutting mechanism as claimed in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221678666.9U CN218986193U (en) | 2022-06-30 | 2022-06-30 | Cutting mechanism of pencil sharpener and pencil sharpener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221678666.9U CN218986193U (en) | 2022-06-30 | 2022-06-30 | Cutting mechanism of pencil sharpener and pencil sharpener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218986193U true CN218986193U (en) | 2023-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221678666.9U Active CN218986193U (en) | 2022-06-30 | 2022-06-30 | Cutting mechanism of pencil sharpener and pencil sharpener |
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| Country | Link |
|---|---|
| CN (1) | CN218986193U (en) |
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- 2022-06-30 CN CN202221678666.9U patent/CN218986193U/en active Active
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