CN217835207U

CN217835207U - Pencil point thickness adjustable mechanism of pencil sharpener and pencil sharpener

Info

Publication number: CN217835207U
Application number: CN202220722730.2U
Authority: CN
Inventors: 屠俊杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-11-18
Anticipated expiration: 2032-03-30

Abstract

The utility model discloses a nib thickness adjustable mechanism of ware cuts, include: the knob is provided with a bulge axially on the wall; the rocker arm is provided with at least two clamping grooves matched with the bulges; the knob is movably connected to the rocker arm through the fixing ring; the advantage is that the gear shift is realized to the direct rotation knob, and the operation is swift laborsaving, and protruding setting is in the axial direction of the wall of knob simultaneously, and it passes through axial cooperation with the draw-in groove, and also axial feed during the nib cutting reduces bellied radial force effect, and the gear shift is more smooth, and the draw-in groove is two at least simultaneously, just also two at least gears realize a plurality of gear demands.

Description

Pencil point thickness adjustable mechanism of pencil sharpener and pencil sharpener

Technical Field

The utility model belongs to the technical field of the ware of cutting and specifically relates to a nib thickness adjustable mechanism and a ware of cutting of ware cut.

Background

The pencil sharpener is a pencil sharpening tool and is also one of necessary stationery for students. The pencil sharpener generally comprises a shell, a pencil clamping mechanism, a knife rest and a rocker arm, wherein when the pencil sharpener is used, a pencil is fixed by the pencil clamping mechanism, and the rocker arm is shaken by hands to sharpen the pencil. The traditional pencil sharpener can not adjust the thickness and the length of a pencil point, and the thickness of the pencil point after pencil sharpening is the same. There are also penknife devices in the market that can adjust the thickness of the pen point, such as the straight-pushing two-gear type pen point thickness adjusting mechanism of the pencil sharpener and the pencil sharpener disclosed in patent document CN107839390a, which can only adjust two gears, and the structure adopts the push button to reach two axial positions of the guide rod, and the phenomenon of slowness or jamming can occur during gear shifting.

Disclosure of Invention

A primary object of the present invention is to provide a nib thickness adjustable mechanism of a pencil sharpener and a pencil sharpener, to solve the problems of few gears, hard gear shifting and sluggishness in the prior art.

In order to achieve the above object, the utility model provides a nib thickness adjustable mechanism of ware cuts, include: the knob is provided with a bulge axially on the wall; the rocker arm is provided with at least two clamping grooves matched with the bulges; the fixing ring is used for movably connecting the knob to the rocker arm.

Furthermore, a positioning rod and a gear limiting part are arranged in the knob, one end of the positioning rod is fixedly connected to the circumferential center of the knob, and at least two stages of gear limiting parts are arranged on the end face of the other end of the positioning rod.

Furthermore, an opening is formed in the rocker arm, and the clamping grooves are distributed on the circumference of the opening. The protrusion is arranged on the shell wall of the knob, the clamping grooves are distributed on the circumference of the opening of the rocker arm, the protrusion is matched with the clamping grooves in the axial direction, the cutting of the pen point is axial feeding, the radial force action of the protrusion is reduced, the gear adjustment smoothness is further improved, and the service life of the protrusion is prolonged.

Further, the mechanism with the adjustable thickness of the pen point further comprises a movable rod, a clamping piece is arranged on the movable rod, one end of the movable rod penetrates through the opening card to be clamped into the positioning rod, and the clamping piece is matched with the gear limiting part. The tip on the locating lever is personally submitted the slope setting, and when the fastener matched with the spacing portion of gear, the nib from thin to thick according to the cutting, the spacing portion of gear also was from low toward high in the terminal surface setting of locating lever, and smooth connection between the spacing portion of each gear further improves the gear and adjusts the smoothness.

Furthermore, the knob is provided with an indication mark, and the fixing ring is provided with a gear mark corresponding to the gear limiting part. When the knob is rotated, the rotating indication mark points to a certain gear mark on the fixed ring, and the cutting pencil is the thickness indicated by the gear mark and is clear at a glance.

Furthermore, an annular ring is arranged in the rocker arm, and the clamping grooves are distributed on the outer wall of the annular ring.

The utility model also provides a pencil sharpener, which comprises a cutting mechanism; a connecting member; the connecting member connects the cutting mechanism and the pen point thickness adjusting mechanism together.

The utility model also provides a pencil sharpener, which comprises a knife rest; a cutting assembly; a connecting member; in the nib thickness adjusting mechanism, the cutting assembly is mounted on the cutter holder, and the connecting member connects the cutting assembly and the nib thickness adjusting mechanism.

Further, the cutting assembly comprises a hob, a hob shaft and a lock catch, the hob shaft is inserted into the hob, one end of the hob shaft is fixed on one end of the tool rest, and the other end of the hob shaft is fixed on the other end of the tool rest through the lock catch; the pen point thickness adjustable mechanism further comprises a movable block and a spring, the tool rest comprises a pen core accommodating cavity, the spring is sleeved at the other end of the movable rod, the spring abuts against the movable block, and the movable block is located at the front end of the pen core accommodating cavity.

Further, the length L of the hob is 30-60mm. The hob can be lengthened to cut a longer pencil lead, the writing length of the pencil is improved, frequent cutting is avoided, and the pencil is particularly suitable for drawing.

Compared with the prior art, the utility model has the advantages of the gear shift is realized to the direct rotatory knob, and the operation is swift laborsaving, and protruding setting is at the axial direction of the wall of knob simultaneously, and it passes through the axial cooperation with the draw-in groove, and also is the axial during nib cutting and feeds, reduces bellied radial force and acts on, and the gear shift is more smooth, and draw-in groove is two at least simultaneously, just also is two at least gears, realizes a plurality of gear demands.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a pen point thickness adjusting mechanism according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a rocker arm according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating the movable rod and the knob according to the embodiment of the present invention;

FIG. 4 is a front view of the mechanism with adjustable pen point thickness of the embodiment of the present invention

FIG. 5 is an exploded view of the pencil sharpener of the present invention;

wherein the drawings include the following reference numerals:

knob 1, protrusion 11, positioning rod 12, gear position limiting part 13, indication mark 14, rocker arm 2, clamping groove 21, opening 22, fixing ring 3, gear position mark 31, movable rod 4, clamping piece 41, tool rest 5, cartridge cavity 51, cutting assembly 6, hob 61, hob shaft 62, lock catch 63, connecting piece 7, movable block 8 and spring 9.

Detailed Description

The embodiment of the application provides a nib thickness adjustable mechanism and a sharpener of sharpener to solve the problems of few gears, laborious gear shifting and slowness in the prior art.

The technical scheme in this application embodiment is for solving the problem that above-mentioned gear is few, the gear shift is hard and slow, and the general thinking is as follows: directly rotate knob 1 and realize the gear shift, the swift laborsaving of operation, protruding 11 sets up the axial direction at the wall of knob 1 simultaneously, and it passes through axial cooperation with draw-in groove 21, and also axial feed during the nib cutting reduces protruding 11 radial force effect, and the gear shift is more smooth, and draw-in groove 21 is two at least simultaneously, just also two at least gears realize a plurality of gear demands.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-4, a nib thickness adjustable mechanism of a pencil sharpener comprises a knob 1, a rocker 2 and a fixed ring 3, wherein a protrusion 11 is axially arranged on the wall of the knob 1; at least two clamping grooves 21 matched with the protrusions 11 are arranged on the rocker arm 2, the number of the clamping grooves 21 is divided according to the thickness of the pencil point, and the clamping grooves can be divided into 3 to 10, namely, the thickness of the pencil point with a plurality of gears is realized; the knob 1 is movably connected to the rocker arm 2 through a fixed ring 3.

During specific implementation, a positioning rod 12 and a gear limiting part 13 are arranged in the knob 1, one end of the positioning rod 12 is fixedly connected to the circumferential center of the knob 1, at least two stages of gear limiting parts 13 are arranged on the end face of the other end of the positioning rod 12, and the number of the gear limiting parts 13 corresponds to the number of the clamping grooves 21.

In specific implementation, an opening 22 is formed in the rocker arm 2, the clamping grooves 21 are distributed on the circumference of the opening 22, or an annular ring is formed in the rocker arm 2, and the clamping grooves 21 are distributed on the outer wall of the annular ring. The protrusion 11 is arranged on the shell wall of the knob 1, the clamping grooves 21 are distributed on the circumference of the opening 22 of the rocker arm 2, the protrusion 11 and the clamping grooves 21 are axially matched, and the cutting of a pen point is axial feeding, so that the radial force action of the protrusion 11 is reduced, the gear adjustment smoothness is further improved, and the service life of the protrusion 11 is prolonged.

During specific implementation, the pen point thickness-adjustable mechanism further comprises a movable rod 4, a clamping piece 41 is arranged on the movable rod 4, one end of the movable rod 4 penetrates through the opening 22 and is clamped into the positioning rod 12, and the clamping piece 41 is matched with the gear position limiting portion 13. The end face on the positioning rod 12 is arranged in a slope, when the clamping piece 41 is matched with the gear limiting parts 13, the gear limiting parts 13 are arranged on the end face of the positioning rod 12 and are also from low to high according to the thickness of a cut pen point, the gear limiting parts 13 are smoothly connected with each other between the gear limiting parts 13, and therefore smooth gear adjustment is further improved.

In specific implementation, the knob 1 is provided with an indication mark 14, and the fixing ring 3 is provided with a gear mark 31 corresponding to the gear limiting part 13. When the knob 1 is rotated, the rotating indication mark 14 points to one gear mark 31 on the fixing ring 3, and the cutting stroke is the thickness indicated by the gear mark 31, so that the cutting stroke is clear at a glance.

As shown in fig. 5, a pencil sharpener comprises a cutter holder 5, a cutting assembly 6, a connecting member 7 and a pen point thickness adjusting mechanism, the pen point thickness adjusting mechanism is structured as in the above embodiment, the cutting assembly 6 comprises a hob 61, a hob shaft 62 and a lock catch 63, the hob shaft 62 is inserted into the hob 61, one end of the hob shaft 62 is fixed on one end of the cutter holder 5, and the other end of the hob shaft 62 is fixed on the other end of the cutter holder 5 through the lock catch 63; the pen point thickness adjustable mechanism further comprises a movable block 8 and a spring 9, the tool rest 5 comprises a pen core accommodating cavity 51, the spring 9 is sleeved into the other end of the movable rod 4, the spring abuts against the movable block 8, the movable block 8 is located at the front end of the pen core accommodating cavity 51, and the tool rest 5 is connected with the rocker arm 2 through a connecting piece 7.

In specific implementation, the length L of the hob 61 is set to be 30-60mm. The hob 61 is lengthened to cut longer pencil leads, the using length of various pens is increased, frequent cutting is solved, and the hob 61 is particularly suitable for colored lead for drawing, wherein the length of the hob 61 is preferably 46mm or 50mm or 51mm or 52mm.

The working principle of the adjustable thickness of the pen point is as follows:

rotating the knob 1 to enable the indication mark 14 to indicate a first gear (for example, the thickest first gear of the pen refill) of the gear mark 31, wherein a protrusion 11 on the knob 1 is clamped on a clamping groove 21 of the first gear, the distribution positions of the clamping grooves 21 correspond to the gear marks 31 one by one, one end of the movable rod 4 is clamped in the positioning rod 12, the clamping piece is matched with a gear position limiting part 13 of the first gear, the gear position limiting part 13 of the first gear is positioned at the foremost end of the positioning rod 12, the other end of the movable rod 4 is spliced and abutted against the movable block 8, the movable block 8 is positioned at a first gear preset position of the pen refill accommodating cavity 51, and the pen tip cut by the preset position is thickest; clockwise rotation knob 1, indicate index mark 14 on the nth shelves (for example, the finest shelves of refill) of gear mark 31, protruding 11 on the knob 1 also blocks on the draw-in groove 21 of nth shelves along with knob 1 clockwise this moment, the fastener of movable rod 4 one end is also clockwise and the spacing portion 13 cooperation of gear of nth shelves, the spacing portion 13 of gear of nth shelves is located the rearmost end of locating lever 12, movable rod 4's other end is supported and is caught movable block 8, movable block 8 is located the nth shelves preset position of refill appearance chamber 51, the nib that this preset position cut out is finest, satisfy the customer to the different demands of nib thickness, through rotatory knob 1, the operation is laborsaving swift, including the axial direction of protruding 11 setting at knob 1's wall, it passes through axial cooperation with draw-in groove 21, and also be axial feed during the nib cutting, reduce protruding 11's radial force effect, the gear shift is more smooth, protruding 11's life has also been improved, compare prior art, the utility model discloses two parts are saved to the application structure at least, moreover, the steam generator is simple structure.

The gear mark 31 can also set the cut pen point from thick to thin in the counter-clockwise direction, and the corresponding clamping groove and the gear limiting part are changed accordingly.

The foremost end of the positioning rod 12 is the farthest end from the knob 1, whereas the nearest end from the knob 1 is the rearmost end of the positioning rod 12.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modifications, alterations, improvements, etc. within the spirit and principle of the present invention should be construed as being within the scope of the present invention.

Claims

1. The utility model provides a nib thickness adjustable mechanism of sharpener which characterized in that includes:

the knob is axially provided with a bulge on the wall of the knob;

the rocker arm is provided with at least two clamping grooves matched with the bulges;

the fixing ring is used for movably connecting the knob to the rocker arm.

2. The mechanism of claim 1, wherein a positioning rod and a gear position limiting portion are disposed in the knob, one end of the positioning rod is fixedly connected to the circumferential center of the knob, and at least two stages of gear position limiting portions are disposed on an end surface of the other end of the positioning rod.

3. The mechanism of claim 2, wherein the rocker arm has an opening therein, and the engaging grooves are disposed on a circumference of the opening.

4. The mechanism of claim 3, further comprising a movable rod, wherein a latch is disposed on the movable rod, one end of the movable rod passes through the opening and is latched into the positioning rod, and the latch is engaged with the gear position-limiting portion.

5. The mechanism of claim 4, wherein the knob is provided with an indication mark, and the fixing ring is provided with a gear mark corresponding to the gear position limiting portion.

6. The mechanism of claim 2, wherein an annular ring is disposed in the rocker arm, and the engaging grooves are disposed on an outer wall of the annular ring.

7. A pencil sharpener is characterized by comprising

A cutting mechanism;

a connecting member;

the nib thickness adjustment mechanism of any one of claims 1 to 6, wherein the coupling member couples the cutting mechanism and the nib thickness adjustment mechanism together.

8. A pencil sharpener is characterized by comprising

A tool holder;

a cutting assembly;

a connecting member;

the nib thickness adjustable mechanism of claim 5, the cutting assembly mounted on a carriage, the coupling connecting the cutting assembly with the nib thickness adjustable mechanism.

9. The pencil sharpener of claim 8 wherein said cutting assembly comprises a hob, a hob shaft and a lock, said hob shaft being inserted into said hob, one end of said hob shaft being secured to one end of said tool holder, the other end of said hob shaft being secured to the other end of said tool holder by said lock; the pen point thickness adjustable mechanism further comprises a movable block and a spring, the tool rest comprises a pen core accommodating cavity, the spring is sleeved at the other end of the movable rod, the spring abuts against the movable block, and the movable block is located at the front end of the pen core accommodating cavity.

10. The sharpener of claim 9 wherein said roller cutter length L is 30-60mm.