CN214449873U

CN214449873U - Pencil lead point thickness adjustable structure

Info

Publication number: CN214449873U
Application number: CN202120181219.1U
Authority: CN
Inventors: 吴翠珊
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-10-22
Anticipated expiration: 2031-01-22

Abstract

A pencil lead point thickness adjustable structure comprises a knife rest, a rotating wheel, a pencil blocking rod, a spring, an adjusting knob, a crank and a positioning cap, wherein a roller knife is connected with the knife rest in a shaft connection mode, the rotating wheel is installed on the knife rest, the knife rest is in threaded connection with the crank, the front end of the pencil blocking rod penetrates into the knife rest, the spring is sleeved at the front end of the pencil blocking rod, a cylinder inserted into an inner hole of the adjusting knob is arranged at the rear end of the pencil blocking rod, two bulges matched with two spiral grooves at the front end of the adjusting knob are arranged on the side portion of the cylinder, and a convex rib matched with a positioning groove in an inner ring body of the positioning cap is arranged at the rear end of the adjusting knob; the positioning cap is arranged on the crank through two buckles. The utility model discloses a protruding muscle cooperatees with the constant head tank and makes adjust knob and fender pen-holder be in different cooperation positions, and then makes the front end that keeps off the pen-holder and the interval difference between the pen hole of advancing of knife rest to reach the purpose of adjusting the thickness of cutting pencil core point.

Description

Pencil lead point thickness adjustable structure

Technical Field

The utility model belongs to the technical field of the ware of cutting, specifically speaking, it is a pencil core point thickness adjustable structure.

Background

The pencil sharpener can safely and quickly sharpen a pencil, and becomes one of necessary tools for students.

In the prior art, the pencil lead point thickness-adjustable mechanism comprises a tool rest connected with a hob, an adjusting part with a stop rod at the front end and a control part, wherein the stop rod of the adjusting part penetrates into the tool rest, two pairs of gear grooves with different depths in the length direction of the stop rod are arranged at the rear end of the adjusting part, and the control part comprises a jacking part capable of being inserted into the gear grooves; two gear grooves are arranged in each pair, the depths of the two pairs of gear grooves are different, wherein two first gear grooves are deeper, and two second gear grooves are shallower; when the top splenium is in the gear recess of degree of depth difference respectively for the spacing between the hole of advancing of the stop lever of adjusting part and knife rest is different, thereby reaches the purpose of adjusting the thickness of cutting the pencil core point, and the structure is adjusted to the pencil core point thickness adjustable mechanism of above-mentioned structural design adopts two grades formula, and the pencil core point or thick or thin that cut out can not satisfy the user to the increasingly high requirement of sharpener.

Thus, the prior art is subject to improvements and improvements.

SUMMERY OF THE UTILITY MODEL

To the weak point among the prior art, the utility model aims at providing a pencil core point thickness adjustable structure of different thickness pencil core points is adjusted, is cut out to many grades of formulas.

In order to achieve the above object, the utility model adopts the following technical scheme:

a pencil lead point thickness adjustable structure comprises a knife rest, a rotating wheel, a pencil blocking rod, a spring, an adjusting knob, a crank and a positioning cap, wherein a roller knife is connected with the knife rest in a shaft connection mode, the rotating wheel is installed on the knife rest, the knife rest is in threaded connection with the crank, the front end of the pencil blocking rod penetrates into the knife rest, the spring is sleeved at the front end of the pencil blocking rod, a cylinder inserted into an inner hole of the adjusting knob is arranged at the rear end of the pencil blocking rod, two bulges matched with two spiral grooves at the front end of the adjusting knob are arranged on the side portion of the cylinder, a convex rib matched with a positioning groove in the inner ring body of the positioning cap is arranged at the rear end of the adjusting knob, and the convex rib and the positioning groove are at least three pairs; the positioning cap is arranged on the crank through two buckles.

Preferably, two guide reinforcing ribs are symmetrically arranged on the annular body of the pen holder and matched with the two guide grooves on the annular body in the positioning cap.

Compared with the prior art, the beneficial effects of the utility model are that:

due to the adoption of the structural design, the convex ribs on the adjusting knob are matched with the positioning grooves on the positioning cap, so that the adjusting knob and the pen blocking rod are in different matching positions, the distance between the front end of the pen blocking rod and the pen inlet hole of the knife rest is different, and the purpose of adjusting the thickness of the pencil core point of the cutting pencil is achieved.

Drawings

FIG. 1 is a schematic exploded view of the present invention;

FIG. 2 is a schematic view of the pen stopping rod, the adjusting knob and the positioning cap of the present invention;

fig. 3 is another schematic view of the pen holder, the adjusting knob and the positioning cap of the present invention.

The reference numbers in the figures are respectively:

(1) the device comprises a knife rest, (2) a rotating wheel, (3) a pen blocking rod, (4) a spring, (5) an adjusting knob, (6) a crank, (7) a positioning cap, (8) a cylinder, (9) a spiral groove, (10) a bulge, (11) a positioning groove, (12) a convex rib, (13) a buckle, (14) a guide reinforcing rib, (15) a guide groove, (71) an inner ring body and (31) an annular body.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings:

example (b):

referring to fig. 1-3, the utility model relates to a pencil lead point thickness adjustable structure, which comprises a knife rest 1 connected with a roller knife by a shaft, a rotating wheel 2, a pen blocking rod 3, a spring 4, an adjusting knob 5, a crank 6 and a positioning cap 7, the rotating wheel 2 is arranged on the tool rest 1, the tool rest 1 is in threaded connection with the crank 6, the front end of the pen blocking rod 3 penetrates into the knife rest 1, the front end of the pen blocking rod 3 is sleeved with the spring 4, the rear end of the pen blocking rod 3 is provided with a cylinder 8 inserted into the inner hole of the adjusting knob 5, the side part of the cylinder 8 is provided with two bulges 10 matched with two spiral grooves 9 at the front end of the adjusting knob 5, the rear end of the adjusting knob 5 is provided with convex ribs 12 matched with the positioning grooves 11 on the inner ring body 71 of the positioning cap 7, and the number of the convex ribs 12 and the positioning grooves 11 is three; the positioning cap 11 is arranged on the crank 6 through two buckles 13, and through the structural design, in an initial state, the convex rib on the adjusting knob is arranged in the positioning groove of the positioning cap corresponding to the adjusting knob, meanwhile, the bulge on the pen holder completely falls into the spiral groove of the adjusting knob, the distance between the front end of the pen holder and the pen inlet hole of the knife rest is the farthest, and the cut pencil is the thinnest; rotating the adjusting knob, wherein a convex rib on the adjusting knob is arranged in a positioning groove of the next positioning cap, meanwhile, a bulge on the pen holder is partially screwed out of a spiral groove of the adjusting knob, the distance between the front end of the pen holder and a pen inlet hole of the tool rest is short, and the cut pencil is thin; the adjusting knob is rotated again, the convex rib on the adjusting knob is placed in the positioning groove of the next positioning cap again, meanwhile, the protrusion on the pen blocking rod is completely screwed out from the spiral groove of the adjusting knob, the distance between the front end of the pen blocking rod and the pen inlet hole of the knife rest is the shortest, the pencil which is cut out at the moment is thickest, the adjusting knob is rotated again, and the adjusting knob and the pen blocking rod reset under the action of the spring, so that periodic operation is realized. The user can rotate adjust knob according to the cutting demand of difference for keep off the front end of pen-holder and the interval of the pen inlet hole of knife rest different, reach the purpose of cutting different thickness pencil core points.

The utility model discloses can also be through setting up more protruding muscle on adjust knob to and set up on the position cap with these some protruding muscle matched with constant head tanks, satisfy more demands that cut the pencil core point thickness difference.

Two guide reinforcing ribs 14 are symmetrically arranged on the annular body 31 of the pen stopping rod 3, and the two guide reinforcing ribs 14 are matched with the two guide grooves 15 on the annular body in the positioning cap 7.

To sum up, the utility model discloses an foretell structural design solves the weak point among the prior art, has characteristics such as rational in infrastructure, design benefit, the pencil core point thickness that satisfies the difference cuts the demand.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A pencil core point thickness adjustable structure is characterized in that: the roller cutter comprises a cutter rest, a rotating wheel, a pen blocking rod, a spring, an adjusting knob, a crank and a positioning cap, wherein the cutter rest is connected with a roller cutter in a shaft connection mode, the rotating wheel is installed on the cutter rest, the cutter rest is in threaded connection with the crank, the front end of the pen blocking rod penetrates into the cutter rest, the spring is sleeved at the front end of the pen blocking rod, a cylinder inserted into an inner hole of the adjusting knob is arranged at the rear end of the pen blocking rod, two bulges matched with two spiral grooves at the front end of the adjusting knob are arranged at the side part of the cylinder, a convex rib matched with a positioning groove in an inner ring body of the positioning cap is arranged at the rear end of the adjusting knob, and at least three pairs of the convex rib and the positioning groove are arranged; the positioning cap is arranged on the crank through two buckles.

2. The pencil lead point thickness adjustable structure according to claim 1, wherein: two guide reinforcing ribs are symmetrically arranged on the annular body of the pen holder and matched with the two guide grooves on the annular body in the positioning cap.