CN210792615U

CN210792615U - Pen point thickness adjusting structure of pencil sharpener

Info

Publication number: CN210792615U
Application number: CN201921175971.4U
Authority: CN
Inventors: 蔡汉鑫
Original assignee: Guangdong Digao Tech Co ltd
Current assignee: Guangdong Digao Tech Co ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-06-19
Anticipated expiration: 2029-07-24

Abstract

The utility model aims at providing a simple structure, the assembly degree of difficulty is low, the nib thickness of the high penknife of stability adjusts the structure. This nib thickness is adjusted structure is including the adjustable lever that sets up in the rocking arm installation shaft hole of pencil sharpener knife rest, the tip of adjustable lever is equipped with nib thickness and adjusts the inclined plane, be equipped with annular convex shoulder on the pole body of adjustable lever, annular convex shoulder slides spacing in rocking arm installation shaft hole, the one end of annular convex shoulder is equipped with return spring, return spring's tip top is leaned on in rocking arm installation shaft hole, the other end of annular convex shoulder is equipped with the drive ring, it is equipped with the driving pawl to extend along adjustable lever's pole length direction on the circumference of drive ring, the tip of driving pawl is equipped with the direction inclined plane, the adjustable lever still overlaps and is equipped with the regulation axle sleeve, the terminal surface of regulation axle sleeve and driving pawl contact is equipped with a.

Description

Pen point thickness adjusting structure of pencil sharpener

Technical Field

The utility model belongs to the stationery field, concretely relates to nib thickness of penknife adjusts structure.

Background

The pencil sharpener can safely and quickly sharpen pencils, and becomes a necessary tool for students to study. Current comparatively advanced penknife has all been equipped with nib thickness and has been adjusted the structure, the principle that structure was adjusted to these nib thicknesses is different greatly, it sets up a slip dog all to be at the terminal surface in the rocking arm installation shaft hole of penknife rest, the slip direction orientation of this slip dog advances a mouthful of the machine of penknife, the tip of slip dog is equipped with nib thickness and adjusts the inclined plane, be equipped with a telescopic adjusting pole simultaneously in rocking arm installation shaft hole, telescopic adjusting pole's tip and slip dog support and lean on, the flexible length through the adjustment telescopic adjusting pole promotes the slip dog, adjust the slip dog and advance the interval between the hole, the contact position of inclined plane and nib is adjusted to the nib thickness of change pencil in-process, thereby adjust the thickness of nib. However, in the structure for adjusting the thickness of the pen point, on one hand, a sliding stop block with a small size needs to be installed, so that the assembly difficulty is high, the production cost is high, on the other hand, the number of accessories of the structure for adjusting the thickness of the pen point is large, the size among the accessories of the structure for adjusting the thickness of the pen point is easy to generate accumulated tolerance, and the product quality of the pencil sharpener is difficult to ensure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, the assembly degree of difficulty is low, the nib thickness of the high penknife of stability adjusts the structure.

According to the utility model, the nib thickness adjusting structure of the pencil sharpener is characterized in that the nib thickness adjusting structure comprises a movable adjusting rod arranged in a rocker arm mounting shaft hole of a pencil sharpener knife rest, the end part of the movable adjusting rod is provided with a pen point thickness adjusting inclined plane, the rod body of the movable adjusting rod is provided with an annular convex shoulder, the annular convex shoulder is limited in the rocker arm mounting shaft hole in a sliding way, one end of the annular convex shoulder is provided with a return spring, the end of the return spring is propped against the mounting shaft hole of the rocker arm, the other end of the annular convex shoulder is provided with a driving ring, a driving claw is arranged on the circumference of the driving ring along the length direction of the movable adjusting rod, a guide inclined plane is arranged at the end part of the driving claw, the movable adjusting rod is further sleeved with an adjusting shaft sleeve, a plurality of adjusting ratchets are arranged on the end face, in contact with the driving pawl, of the adjusting shaft sleeve, and the adjusting shaft sleeve penetrates through the center hole of the pencil sharpener rocker arm.

The utility model discloses during the use, rotate the adjusting collar, make the direction inclined plane interact who adjusts ratchet and drive pawl, it is flexible to drive the adjustable lever, after the adjusting collar rotated certain angle, the direction inclined plane of drive pawl under return spring's effect with the regulation ratchet contact of next different length to the position of adjustable lever has been changed, nib thickness that has just also changed the in-process adjustable lever tip of cutting adjusts the contact position of inclined plane and nib, reaches the purpose of adjusting nib thickness.

Further, the drive pawls are arranged in pairs along both ends of the diameter of the drive ring. Through the matching of the paired driving pawls and the adjusting ratchets, the stability can be ensured.

Furthermore, the peripheral wall of the annular convex shoulder is provided with a limiting bump, and a key groove matched with the limiting bump is arranged in the rocker mounting shaft hole. The sliding locking cooperation of limiting convex block and keyway can prevent that the adjustable stem self from taking place to rotate when flexible and leading to nib thickness to adjust the inclined plane dislocation, improves stability.

Compared with the prior art, the utility model discloses a structure is adjusted to nib thickness has following advantage:

1. the limiting structures of the sliding stop block and the sliding stop block arranged on the end face of the rocker arm mounting shaft hole are omitted, the number of accessories of the nib thickness adjusting structure is reduced, the assembly difficulty and the production cost are reduced, and the adjusting stability is improved;

2. the annular convex shoulder of the movable adjusting rod is in sliding limit fit with the rocker arm mounting shaft hole of the pencil sharpener cutter frame, and one end of the movable adjusting rod is in sliding fit with the adjusting shaft sleeve, so that the movable adjusting rod is stable and reliable in extension and high in adjusting stability;

3. the accumulated tolerance of the size among the accessories of the nib thickness adjusting structure is reduced, the assembly precision and reliability of the accessories of the nib thickness adjusting structure are improved, and the product quality is improved.

Drawings

Fig. 1 is a schematic structural view of a pencil sharpener using the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic view of a part of the structure of the present invention.

Fig. 4 is an exploded schematic view of the present invention.

In which the figures are as follows: 1. a sharpener carriage; 11. the rocker arm is provided with a shaft hole; 111. a keyway; 2. a movable adjusting rod; 21. the inclined plane is adjusted according to the thickness of the pen point; 22. an annular shoulder; 221. a limiting bump; 23. a return spring; 24. a drive ring; 241. a driving pawl; 2410. a guide slope; 3. adjusting the shaft sleeve; 31. adjusting the ratchet; 4. a pencil sharpener rocker arm; 41. a central bore.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings, wherein the embodiments of the present invention are described in detail with reference to the accompanying drawings, for example, the shapes and structures of the respective members, the mutual positions and connection relationships between the respective portions, the functions and operation principles of the respective portions, and the like.

As shown in the figures 1 and 2, respectively, fig. 3, fig. 4, the utility model discloses a structure is adjusted to nib thickness of pencil sharpener, swing rod 2 including setting up in the rocker arm installation shaft hole 11 of pencil sharpener knife rest 1, the tip of swing rod 2 is equipped with nib thickness and adjusts inclined plane 21, the pole body of swing rod 2 is equipped with annular convex shoulder 22, annular convex shoulder 22 slides spacingly in rocker arm installation shaft hole 11, annular convex shoulder 22's one end is equipped with return spring 23, return spring 23's tip top is leaned on in rocker arm installation shaft hole 11, annular convex shoulder 22's the other end is equipped with driving ring 24, it is equipped with driving pawl 241 to extend along the pole length direction of swing rod 2 on driving ring 24's the circumference, driving pawl 241's tip is equipped with direction 2410, swing rod 1 still overlaps and is equipped with adjusts axle sleeve 3, the terminal surface of adjusting axle sleeve 3 and driving pawl 241 contact is equipped with a plurality of regulations 31, adjust axle sleeve 3 wears.

The utility model discloses during the use, rotation regulation axle sleeve 3, make the direction inclined plane 2410 interact of adjusting ratchet 31 and drive pawl 241, it is flexible to drive adjustable stem 2, after adjusting axle sleeve 3 rotated certain angle, the direction inclined plane 2410 of drive pawl 241 contacts with the regulation ratchet 31 of next different length under return spring 23's effect, thereby the position of adjustable stem 2 has been changed, the nib thickness that has just also changed the 2 tip of the in-process adjustable stem of sharpening adjusts inclined plane 21 and the contact position of nib, reach the purpose of adjusting the nib thickness. In the present embodiment, four kinds of adjusting ratchets 31 with different lengths are taken as an example, i.e. four kinds of pen points with different thicknesses can be adjusted.

In a preferred embodiment, the drive pawls 241 are arranged in pairs along both ends of the diameter of the drive ring 24. Stability can be ensured by the pair of driving pawls 241 engaging with the regulating ratchet 31. Of course, in practical applications, a plurality of driving pawls 241 may be provided, and the corresponding regulating ratchet teeth 31 are correspondingly arranged in groups along the circumferential direction.

Preferably, the circumferential wall of the annular shoulder 22 is provided with a limit projection 221, and the rocker arm mounting shaft hole 11 is provided with a key groove 111 which is matched with the limit projection 221. The sliding locking fit of the limit bump 221 and the key groove 111 can prevent the nib thickness adjusting inclined plane 21 from being dislocated due to the rotation of the movable adjusting rod 2 when the movable adjusting rod extends and retracts, and the stability is improved.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A nib thickness adjusting structure of a pencil sharpener is characterized by comprising a movable adjusting rod arranged in a rocker arm mounting shaft hole of a pencil sharpener cutter frame, the end part of the movable adjusting rod is provided with a pen point thickness adjusting inclined plane, the rod body of the movable adjusting rod is provided with an annular convex shoulder, the annular convex shoulder is limited in the rocker arm mounting shaft hole in a sliding way, one end of the annular convex shoulder is provided with a return spring, the end of the return spring is propped against the mounting shaft hole of the rocker arm, the other end of the annular convex shoulder is provided with a driving ring, a driving claw is arranged on the circumference of the driving ring along the length direction of the movable adjusting rod, a guide inclined plane is arranged at the end part of the driving claw, the movable adjusting rod is further sleeved with an adjusting shaft sleeve, a plurality of adjusting ratchets are arranged on the end face, in contact with the driving pawl, of the adjusting shaft sleeve, and the adjusting shaft sleeve penetrates through the center hole of the pencil sharpener rocker arm.

2. The pen tip thickness adjusting structure of a pencil sharpener as defined in claim 1, wherein said drive pawls are arranged in pairs along both ends of the diameter of said drive ring.

3. The structure for adjusting the thickness of the pen point of a pencil sharpener as claimed in claim 1, wherein the circumferential wall of the annular shoulder is provided with a limit projection, and a key groove matched with the limit projection is formed in the shaft hole of the rocker arm mounting.