Pencil sharpener refill adjusting mechanism and pencil sharpener
The design of the limiter and the adjustment track enables flexible adjustment of the pencil sharpener refill, solves the problems of inconvenient and unstable adjustment in the prior art, and provides a simple and stable refill thickness adjustment effect.
Patent Information
- Application Number
- CN202422704031.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-06
AI Technical Summary
Existing pencil sharpeners are difficult to flexibly adjust the thickness of the pencil lead, and the adjustment operation is inconvenient and unstable, and cannot meet the needs of different usage scenarios.
The cutting assembly is adjusted by adjusting the distance between the limiter and the pen feed hole. Combined with the cooperation of the slider and the pen guide, the connection structure of the adjustment track and the limiter is used to achieve stepped or stepless adjustment, ensuring the stability and simplicity of pen core cutting.
It realizes flexible adjustment of the thickness of the pen core, is easy to operate, and has stable adjustment, meeting the needs of different usage scenarios and improving the cutting accuracy and stability.
Smart Images
Figure CN223314710U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of office stationery, and in particular to a pencil sharpener refill adjustment mechanism and a pencil sharpener. Background Art
[0002] Currently, pencil sharpeners are a commonly used stationery tool in daily learning and office scenarios. Traditional pencil sharpeners can usually only provide a single fixed degree of cutting thickness for the pen refill, which makes it difficult to meet the diverse needs of users for the thickness of the pen refill in different usage scenarios. For example, when drawing, you may need pen refills of different thicknesses to produce different line effects; when writing, some people like thinner pen refills to obtain clearer handwriting, while others prefer thicker pen refills to increase the smoothness of writing. In addition, some existing pencil sharpeners have the problem of inconvenient operation in the function of adjusting the thickness of the pen refill. Some pencil sharpeners have complex adjustment mechanisms that are not easy for users to understand and operate; some adjustment methods are unstable and easily deviate during use, resulting in uneven cutting thickness of the pen refill. Moreover, the flexibility of adjusting the cutting thickness of the pen refill of pencil sharpeners currently on the market still has a lot of room for improvement.
[0003] Therefore, how to achieve effective adjustment of the cutting thickness of the pencil lead by the pencil sharpener and make the adjustment operation simpler and more stable has become an urgent problem to be solved. Utility Model Content
[0004] The purpose of the present application is to provide a pencil sharpener refill adjustment mechanism and a pencil sharpener, so as to achieve effective adjustment of the cutting thickness of the pencil refill.
[0005] To achieve the above objectives, the technical solution adopted in the present application is: to provide a pencil sharpener refill adjustment mechanism, comprising: a blade holder body, the blade holder body is provided with a placement space, a cutting assembly is provided in the placement space, the blade holder body is provided with a pen feed hole for the pen refill to pass through for cutting; a limit member, the limit member is movably connected to the blade holder body, and the limit member is placed in the placement space, and the limit member is provided in the axial extension direction of the pen refill through the pen feed hole; wherein, the distance of the limit member relative to the pen feed hole is adjusted to determine the thickness of the pen refill cut by the cutting assembly.
[0006] As a preferred embodiment, the cutting assembly includes: a cutting blade and a pen guide, one end of the cutting blade abuts against one end of the pen feed port of the tool holder body, and the other end of the cutting blade extends to abut against the bottom of the placement space, the pen guide is arranged in the placement space, and there is a gap between the pen guide and the bottom of the placement space, the limiting member is placed in the gap, and the pen guide surrounds the pen feed hole and forms a cutting gap with the cutting blade.
[0007] As another preferred embodiment, the pencil sharpener refill adjustment mechanism further includes: an adjustment track, which is fixedly connected to the cutting blade; wherein one end of the limit member is movably connected to the adjustment track, and the adjustment track is used to limit the adjustable stroke of the limit member.
[0008] Further preferably, the limiting member includes: a slider and a connecting portion, the connecting portion is connected to the slider, the connecting portion is embedded in the adjustment track, and the connecting portion moves in the adjustment track to drive the slider to approach or move away from the pen guide.
[0009] Further preferably, a limiting opening is provided at the bottom of the placement space, and correspondingly, the limiting member is protruded with a support rod, and the support rod is movably inserted into the limiting opening to assist in supporting the movement of the limiting member relative to the adjustment track.
[0010] Further preferably, the adjustment rail is also provided with a plurality of first grooves arranged at intervals, and the plurality of first grooves are arranged along the extension direction of the adjustment rail; the connecting portion is provided with a first protrusion, and the first protrusion is engaged with a single first groove; wherein, the first protrusion is moved to engage with the first grooves at different positions to fix the slider at different distances relative to the pen guide.
[0011] Preferably, the tool holder body is provided with a plurality of second grooves arranged at intervals, and the extension direction of the plurality of second grooves is consistent with the extension direction of the adjustment track; the slider is provided with a second protrusion, and the second protrusion is engaged with a single second groove; wherein, the second protrusion is moved to engage with the second grooves at different positions to fix the slider at different distances relative to the pen guide.
[0012] Preferably, the slider is hollowed out.
[0013] Preferably, in one usage scenario, the pencil sharpener refill adjustment mechanism also includes a rotating connector, one end of the rotating connector is connected to the pen guide, the other end of the rotating connector is connected to the bottom of the placement space, and the rotating connector passes through the slider and is rotatably connected to the slider, and the slider is moved closer to or away from the pen guide by rotating the rotating connector.
[0014] Furthermore, the present application document also provides a pencil sharpener, which includes a shell body, and the shell body is provided with a pencil sharpener refill adjustment mechanism as described in any one of the above items.
[0015] Compared with the prior art, the present invention has the following advantages:
[0016] Provided is a pencil sharpener refill adjustment mechanism, which can determine the thickness of the refill cut by the cutting assembly by adjusting the distance of a limiter relative to a pen feed hole, thereby meeting user needs for refills of different thicknesses.
[0017] At the same time, the slider and the pen guide are matched to each other, and the distance between the slider and the pen guide is changed to achieve step-by-step adjustment of the cutting thickness of the pen core, which is simple and convenient to operate.
[0018] A connection structure between the adjustment track and the limiter is provided to effectively limit the moving direction and travel of the limiter and avoid deviation in the adjustment direction.
[0019] By engaging the first protrusion with the first groove and the second protrusion with the second groove, the stability of the limiting member at different heights is ensured, thereby improving the stability of the pen tip thickness cutting adjustment. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural diagram of the pencil sharpener refill adjustment mechanism;
[0021] Figure 2 A schematic diagram of the structure of the pencil sharpener refill adjustment mechanism from another perspective;
[0022] Figure 3 This is a schematic diagram of the structure of the pencil sharpener refill adjustment mechanism after the limiter is height adjusted;
[0023] Figure 4 A schematic diagram of the structure of the pencil sharpener refill adjustment mechanism from another perspective after the limiter is height-adjusted;
[0024] Figure 5 A schematic diagram of the structure of the position of the limiter in the pencil sharpener refill adjustment mechanism;
[0025] Figure 6 A schematic structural diagram of a pencil sharpener refill adjustment mechanism in another embodiment;
[0026] Figure 7 A schematic structural diagram of the position of a limiter in a pencil sharpener refill adjustment mechanism in another embodiment;
[0027] Figure 8 Schematic diagram of the structure of the pencil sharpener refill adjustment mechanism after the limiter is height-adjusted in another embodiment.
[0028] In the figure: 1. Pencil sharpener refill adjustment mechanism; 10. Blade holder body; 11. Placement space; 12. Pen feed hole; 13. Limit opening; 14. Second groove; 20. Cutting assembly; 21. Cutting blade; 22. Pen guide; 30. Limit member; 31. Slider; 311. Second protrusion; 32. Connecting part; 321. First protrusion; 33. Support rod; 40. Adjustment track; 41. First groove; 50. Rotating connecting member; 60. Reinforcement member. DETAILED DESCRIPTION
[0029] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0030] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.
[0031] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.
[0032] The terms "comprises" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.
[0033] In a preferred embodiment, see Figures 1 to 5The present application document provides a pencil sharpener refill adjustment mechanism 1, comprising: a blade holder body 10, the blade holder body 10 is provided with a placement space 11, a cutting assembly 20 is provided in the placement space 11, and a pen feed hole 12 is provided in the blade holder body 10 for the pen refill to pass through for cutting; a limit member 30, the limit member 30 is connected to the blade holder body 10 in a movably manner, and the limit member 30 is placed in the placement space 11, and the limit member 30 is provided in the axial extension direction of the pen refill through the pen feed hole 12; wherein, the distance between the limit member 30 and the pen feed hole 12 is adjusted to determine the thickness of the pen refill cut by the cutting assembly 20.
[0034] As a preferred embodiment, the cutting assembly 20 includes: a cutting blade 21 and a pen guide 22, one end of the cutting blade 21 abuts against one end of the pen feed port of the tool holder body 10, and the other end of the cutting blade 21 extends against the bottom of the placement space 11, and the pen guide 22 is arranged in the placement space 11. There is a gap between the pen guide 22 and the bottom of the placement space 11, and the limit member 30 is placed in the gap, and the pen guide 22 surrounds the pen feed hole 12 and forms a cutting gap with the cutting blade 21.
[0035] As another preferred embodiment, the pencil sharpener refill adjustment mechanism 1 further includes: an adjustment rail 40, which is fixedly connected to the cutting blade 21; wherein one end of the limit member 30 is movably connected to the adjustment rail 40, and the adjustment rail 40 is used to limit the adjustable stroke of the limit member 30.
[0036] Further preferably, the limiting member 30 includes: a slider 31 and a connecting portion 32, the connecting portion 32 is connected to the slider 31, the connecting portion 32 is embedded in the adjustment track 40, and the connecting portion 32 is located in the adjustment track 40 and moves to drive the slider 31 closer to or away from the pen guide 22.
[0037] It should be noted that the position of the slider 31 in the placement space 11 corresponds to the position of the pen guide 22. The pencil to be sharpened enters from the pen feed hole 12, passes through the limit of the pen guide 22, and is cut by the cutting blade 21, and then the pencil to be sharpened emerges from the opening of the pen guide 22. At this time, the user only needs to hold the slider 31 to lift or lower it, and fix the slider 31 at different heights to achieve the pen tip to be sharpened being cut to different thicknesses by the cutting blade 21. The closer the slider 31 is to the pen guide 22, the shorter the pen tip is from the pen guide 22, and the thicker the pen tip is cut. When the slider 31 is farther away from the pen guide 22, the longer the pen tip is from the pen guide 22, and the thinner the pen tip is cut.
[0038] The connecting portion 32 is specifically a strip-shaped ridge, which is embedded in the adjustment track 40 to effectively limit the moving direction and moving stroke of the limiting member 30, thereby preventing the limiting member 30 from deviating from the adjustment direction.
[0039] The position of the limiting member 30 is fixed by the engagement of the first protrusion 321 with the first groove 41, and the engagement of the second protrusion 311 with the second groove 14. Specifically, the adjustment rail 40 is provided with a plurality of first grooves 41 spaced apart, and the plurality of first grooves 41 are arranged along the extension direction of the adjustment rail 40. The connecting portion 32 is provided with a first protrusion 321, which engages with a single first groove 41. The first protrusion 321 is moved to engage with first grooves 41 at different positions to fix the slider 31 at different distances relative to the pen guide 22. Simultaneously, the tool holder body 10 is provided with a plurality of second grooves 14 spaced apart, and the extension direction of the plurality of second grooves 14 is consistent with the extension direction of the adjustment rail 40. The slider 31 is provided with a second protrusion 311, which engages with a single second groove 14. The second protrusion is moved to engage with second grooves 14 at different positions to fix the slider 31 at different distances relative to the pen guide 22.
[0040] The setting positions of the first boss and the first groove 41 are opposite to the setting positions of the second boss 311 and the second groove 14, corresponding to the two ends of the limiter 30, namely one end of the slider 31 and one end of the connecting portion 32, thereby effectively ensuring the stability of the limiter 30 fixed at a certain height after being lifted, so that when the pen tip rests on the slider 31, the slider 31 will not tilt or deviate, thereby ensuring the stability of the coarse and fine cutting adjustment of the pen tip.
[0041] Therefore, in a specific usage scenario, the pencil sharpener refill adjustment mechanism 1 in this embodiment is provided with three first grooves 41, and correspondingly, three second grooves 14 are also provided. Thus, the limiter 30 in the pencil sharpener refill adjustment mechanism 1 in this embodiment can complete three-level height adjustment, and the corresponding cut refills have three different thicknesses that can be adjusted, and the adjustment completed is a stepped adjustment.
[0042] Therefore, further, corresponding to the step-by-step adjustment of the above-mentioned limiter 30, the user needs to take the slider 31 for manual lifting adjustment, so see Figure 2 The two ends of the slider 31 protrude from the bottom of the placement space 11, and the two ends of the slider 31 extend outward, making it convenient for the user to hold the slider 31 for lifting and adjustment.
[0043] Further preferably, a limiting opening 13 is provided at the bottom of the placement space 11, and correspondingly, a support rod 33 is protruded from the limiting member 30, and the support rod 33 is inserted into the limiting opening 13 in a movably manner to assist in supporting the travel movement of the limiting member 30 relative to the adjustment rail 40, thereby further improving the stability of the height adjustment of the limiting member 30.
[0044] Preferably, see Figure 2 and Figure 4The slider 31 is hollowed out, thereby providing a certain deformation amount for the second protrusion 311 to engage with the second groove 14, making it easier for the operator to lift the slider 31 so that the second protrusion 311 moves in the multiple second grooves 14.
[0045] Preferably, in another embodiment, see Figures 6 to 8 The provided pencil sharpener refill adjustment mechanism 1 includes a rotating connector 50, one end of the rotating connector 50 is connected to the pen guide 22, and the other end of the rotating connector 50 is connected to the bottom of the placement space 11, and the rotating connector 50 passes through the slider 31 and is rotatably connected to the slider 31. By rotating the rotating connector 50, the slider 31 can be moved closer to or away from the pen guide 22.
[0046] Among them, the rotating connecting member 50 is specifically a screw gear structure. The user rotates the gear plate to drive the screw to rotate, and the rotation of the screw drives the slider 31 to rise or fall, thereby realizing stepless adjustment of the slider 31 to provide higher precision adjustment of the thickness of the pen core.
[0047] At the same time, the cutting blade 21 in the pencil sharpener refill adjustment mechanism 1 in any of the above-mentioned embodiments is connected to the bottom of the placement space 11 through a reinforcing member 60. The reinforcing member 60 is specifically a block-shaped abutment member. Since all components in the pencil sharpener refill adjustment mechanism 1 in this application document are connected to the cutting blade 21, the operation of each component will affect the cutting stability of the cutting blade 21. Therefore, a reinforcing member 60 is provided. The reinforcing member 60 abuts against the inclined cutting blade 21, thereby further improving the cutting stability of the cutting blade 21 in the placement space 11, and the reinforcing member 60 and the limiting member 30 are arranged on opposite sides of the cutting blade 21 to avoid occupying the setting space of the limiting member 30.
[0048] Furthermore, the present application document also provides a pencil sharpener, which includes a shell body, and a pencil sharpener refill adjustment mechanism 1 as described above is provided in the shell body.
[0049] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.
Claims
1. A pencil sharpener refill adjustment mechanism, characterized in that: include: The tool holder body is provided with a placement space, a cutting assembly is provided in the placement space, and the tool holder body is provided with a pen feed hole for the pen core to pass through for cutting; a limiting member, the limiting member being movably connected to the tool holder body and being disposed in the placement space, the limiting member being disposed in an axial extension direction of the pen refill passing through the pen feed hole; The distance between the limiting member and the pen feed hole is adjusted to determine the thickness of the pen core cut by the cutting assembly.
2. The pencil sharpener refill adjustment mechanism according to claim 1, wherein: The cutting assembly comprises: A cutting blade and a pen guide, one end of the cutting blade abuts against one end of the pen feed port of the tool holder body, the other end of the cutting blade extends and abuts against the bottom of the placement space, the pen guide is arranged in the placement space, there is a gap between the pen guide and the bottom of the placement space, the limiting part is placed in the gap, and the pen guide surrounds the pen feed hole and forms a cutting gap with the cutting blade.
3. The pencil sharpener refill adjustment mechanism according to claim 2, wherein: Also includes: an adjusting rail, the adjusting rail being fixedly connected to the cutting blade; One end of the position-limiting member is movably connected to the adjustment track, and the adjustment track is used to limit the adjustable stroke of the position-limiting member.
4. The pencil sharpener refill adjustment mechanism according to claim 3, wherein: The limiting member includes: A slider and a connecting portion, wherein the connecting portion is connected to the slider and is embedded in the adjustment track. The connecting portion is located in the adjustment track and moves to drive the slider to move closer to or away from the pen guide.
5. The pencil sharpener refill adjustment mechanism according to claim 3, wherein: A limiting opening is provided at the bottom of the placement space, and correspondingly, a support rod is protruded from the limiting member, and the support rod is movably inserted into the limiting opening to assist in supporting the movement of the limiting member relative to the adjustment track.
6. The pencil sharpener refill adjustment mechanism according to claim 4, wherein: The adjustment track is further provided with a plurality of first grooves arranged at intervals, and the plurality of first grooves are arranged along the extension direction of the adjustment track; The connecting portion is provided with a first protrusion, and the first protrusion is engaged with a single first groove; The first protrusion is moved to engage with the first groove at different positions, so as to fix the sliding block at different distances relative to the pen guide.
7. The pencil sharpener refill adjustment mechanism according to claim 4, wherein: The tool holder body is provided with a plurality of second grooves arranged at intervals, and the extension direction of the plurality of second grooves is consistent with the extension direction of the adjustment track; The slider is provided with a second protrusion, and the second protrusion is engaged with a single second groove; The second protrusion is moved to engage with the second groove at different positions, so as to fix the sliding block at different distances relative to the pen guide.
8. The pencil sharpener refill adjustment mechanism according to claim 6, wherein: The slider is hollowed out.
9. The pencil sharpener refill adjustment mechanism according to claim 4, wherein: Also includes: A rotating connector, one end of which is connected to the pen guide, and the other end of which is connected to the bottom of the placement space, and the rotating connector passes through the slider and is rotatably connected to the slider, and the slider is moved closer to or away from the pen guide by rotating the rotating connector.
10. A pencil sharpener, characterized in that: include: A shell body is provided with a pencil sharpener refill adjustment mechanism as claimed in any one of claims 1 to 9.