CN219505750U - Knife rest and rocking handle fixed establishment of pencil sharpener and pencil sharpener - Google Patents

Abstract

The utility model discloses a knife rest and rocking handle fixing mechanism of a pencil sharpener and the pencil sharpener, which comprise a knife rest and a rocking handle, wherein the rear end of the knife rest is connected with the front end of the rocking handle, the rear end of the knife rest is provided with a connecting part, the front end of the rocking handle is provided with a mounting part matched with the connecting part, the rear end of the connecting part is in circumferential transmission fit with the mounting part, the knife rest is limited by circumferential rotation relative to the rocking handle, the mounting part is provided with an elastic buckle, the connecting part is provided with a limiting structure matched with the elastic buckle, the front end of the connecting part is provided with a boss, the limiting structure is buckled with the elastic buckle, the rear end face of the boss abuts against the front end face of the mounting part, the knife rest is limited relative to the rocking handle in the axial direction, and the knife rest can be fixed only by splicing the connecting part with the mounting part during assembly, and the assembly is simple and stable in structure.

Description

Knife rest and rocking handle fixed establishment of pencil sharpener and pencil sharpener

Technical Field

The utility model relates to the technical field of stationery, in particular to a knife rest of a pencil sharpener, a rocking handle fixing mechanism and the pencil sharpener.

Background

The hand pencil sharpener generally comprises a shell, a machine core and a rocking handle, wherein the machine core comprises a cutter rest and a hob arranged on the cutter rest, the cutter rest is fixedly connected with the rocking handle, and a user drives the cutter rest to rotate through the rocking handle so as to realize hob motion. At present, the fixing structure of the rocking handle and the tool rest is mostly in threaded fixation, the rear end of the tool rest is in threaded connection with the front end of the rocking handle to realize fixation, the final position of the rocking handle on the pencil sharpener cannot be ensured during assembly through threaded fixation, and the rocking handle can be located at a preset position only through repeated debugging, so that the problems of lower production efficiency, higher processing precision requirement, higher assembly difficulty, higher production cost and the like exist.

To above-mentioned problem, there is technical scheme to propose rocking handle and the fixed structure of knife rest buckle, if, the publication number is: the utility model patent of CN209274235U discloses a pencil sharpener knife rest and handle fixing mechanism, including knife rest and the handle of installing at the knife rest rear end, its characterized in that: the outer side wall of knife rest rear end is protruding to be equipped with the buckle, and the rear end face axial of rocking handle is equipped with the first step hole that supplies knife rest rear end male, and the interval is equipped with recess and backstop portion on the step face in first step hole, and this step face rises gradually to backstop portion direction along the recess, and the knife rest is rotatory back through passing the buckle with the recess and offsets with backstop portion and realize being connected with the rocking handle. In this technical scheme, the knife rest is passed the buckle and is offseted with backstop portion and realize being connected with the hand crank after rotatory, and although compare in the production efficiency of screw thread fixed knot constructs high, but this kind of buckle fixed knot constructs when the assembly need be with buckle and groove counterpoint earlier and then rotate the knife rest and make buckle and backstop portion lock, and the assembly step is complicated consuming time.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a knife rest and rocking handle fixing mechanism of a pencil sharpener, which is simple to assemble and stable in structure.

The utility model provides a knife rest and rocking handle fixing mechanism of a pencil sharpener, which comprises a knife rest and a rocking handle, wherein the rear end of the knife rest is connected with the front end of the rocking handle, the rear end of the knife rest is provided with a connecting part, the front end of the rocking handle is provided with a mounting part matched with the connecting part, the rear end of the connecting part is in circumferential transmission fit with the mounting part, so that the knife rest is limited relative to the rocking handle in a circumferential rotation way, the mounting part is provided with an elastic buckle, the connecting part is provided with a limiting structure matched with the elastic buckle, the front end of the connecting part is provided with a boss, the limiting structure is buckled with the elastic buckle, and the rear end face of the boss abuts against the front end face of the mounting part, so that the knife rest is limited relative to the rocking handle in an axial direction.

In the technical scheme, the side where the knife rest is arranged is the front side, the side where the rocking handle is arranged is the rear side, the knife rest is connected with the rocking handle through the connecting part, the front end of the rocking handle is arranged on the mounting part matched with the connecting part, the connecting part is inserted into the mounting part and is in circumferential transmission fit with the mounting part, so that the connecting part cannot rotate in the mounting part, the knife rest cannot rotate relative to the rocking handle, a user can rotate the rocking handle to enable the knife rest to synchronously rotate, and circumferential transmission limit fit can be realized through the special-shaped connecting part and the mounting part; through setting up the elasticity buckle in the installation department, set up limit structure in connecting portion, when connecting portion inserts the installation department, elasticity buckle and limit structure support and utilize elasticity to take place deformation to with limit structure lock, elasticity buckle and limit structure cooperation prevent that connecting portion from moving back for installation portion and breaking away from the installation portion; through setting up the boss in the front end of connecting portion, when connecting portion inserts the installation department, the connecting portion is through boss and the outside preceding terminal surface of installation department support spacing to control connecting portion inserts the length of installation department, and the connecting portion realizes axial spacing through boss and elasticity buckle, thereby makes the knife rest fixed for the rocking handle, only need peg graft connecting portion and installation department and can realize fixing during the assembly, assembly is simple and stable in structure.

As an improvement, the elastic buckle is provided with a first guide inclined plane, and the limiting structure passes through the first guide inclined plane to be buckled with the elastic buckle. In this technical scheme, when connecting portion inserts the installation department, elasticity buckle and limit structure support and lean on, under the direction effect of first direction inclined plane, elasticity buckle and limit structure's lock can be more smooth and easy laborsaving, is favorable to improving assembly efficiency.

As an improvement, the utility model can provide a specific limiting structure, wherein the limiting structure is a bump arranged on the outer surface of the connecting part. In this technical scheme, when connecting portion inserts the installation department, the lug supports with the first guide slope of elasticity buckle for elasticity buckle takes place deformation, and the lug can sweep elasticity buckle and with elasticity buckle lock, makes connecting portion break away from the installation department for unable the rollback of installation department, and lug simple structure, manufacturing cost are lower, the structure is reliable.

As an improvement, the utility model can also provide another specific limiting structure, wherein the limiting structure is a groove arranged on the outer surface of the connecting part. In this technical scheme, when connecting portion inserts the installation department, connecting portion periphery supports with the first guide slope of elastic buckle for elastic buckle takes place deformation, and when elastic buckle moved to recess department for connecting portion, in elastic buckle gets into the recess under the elastic action, makes connecting portion break away from the installation department for unable the rollback of installation department, and recess simple structure, manufacturing cost are lower, the structure is reliable.

As an improvement, the elastic buckle is provided with at least two. In this technical scheme, through setting up two at least elasticity buckles, and elasticity buckle evenly sets up along installation department circumference for installation department is connected more reliable and stable with the buckle of connecting portion, and installation department is difficult for breaking away from with the connecting portion.

As an improvement, the front end face of the elastic buckle is lower than the front end face of the mounting part, so that a notch for the limiting structure to penetrate is formed at the front end of the mounting part at the elastic buckle. In this technical scheme, limit structure needs to be connected with elastic buckle alignment back, consequently is less than the installation department through setting up elastic buckle to make the installation department form a breach in elastic buckle department, limit structure can aim at in the elastic buckle inserts the installation department by this notch straight interface, is favorable to improving assembly efficiency.

As an improvement, the front end of the inner wall of the mounting part is provided with a second guiding inclined plane, and the rear end of the connecting part is inserted into the mounting part along the second guiding inclined plane. In this technical scheme, the outer wall of connecting portion and the inner wall size adaptation of installation department, connecting portion and installation department need aim at the back and connect, through set up the second direction inclined plane at the front end of installation department inner wall, enlarge the internal diameter of installation department front end to under the direction effect of second direction inclined plane, connecting portion inserts the installation department easier, is favorable to improving assembly efficiency.

The utility model also provides a pencil sharpener, which comprises the knife rest and the rocking handle fixing mechanism of the pencil sharpener.

The utility model discloses a knife rest and rocking handle fixing mechanism of a pencil sharpener and the pencil sharpener, wherein the fixing mechanism comprises the knife rest and the rocking handle, the knife rest is provided with a connecting part, the rocking handle is provided with a mounting part, the connecting part is matched with the mounting part, so that the knife rest is limited in circumferential rotation relative to the rocking handle, an elastic buckle is arranged in the mounting part, a limiting structure is arranged at the connecting part, the connecting part is fixed in the mounting part through the matching of the elastic buckle and the limiting structure, and the connecting part and the mounting part are only required to be spliced during assembly, so that the pencil sharpener is simple in assembly and stable in structure.

Drawings

Fig. 1 is a schematic perspective view of a holder and crank fixing mechanism of a pencil sharpener of the present disclosure.

Fig. 2 is an exploded view of a holder and crank fixing mechanism of the pencil sharpener of the present disclosure.

Fig. 3 is a schematic cross-sectional view of a holder and crank fixing mechanism of the pencil sharpener of the present disclosure.

Fig. 4 is an enlarged partial schematic view of fig. 3 a of the present disclosure.

Fig. 5 is a schematic perspective view of a crank in the present disclosure.

The figure shows: 1. a tool holder; 11. a connection part; 12. a limit structure; 13. a boss; 2. a rocking handle; 21. a mounting part; 211. a notch; 212. a second guiding inclined surface; 22. an elastic buckle; 221. a first guiding inclined plane.

Detailed Description

For a better understanding of the utility model, various aspects of the utility model will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the utility model and is not intended to limit the scope of the utility model in any way. Like reference numerals refer to like elements throughout the specification.

In the drawings, the thickness, size and shape of the object have been slightly exaggerated for convenience of explanation. The figures are merely examples and are not drawn to scale.

It will be further understood that the terms "comprises," "comprising," "includes," "including," "having," "including" and/or "having," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

As shown in fig. 1 to 5, the utility model discloses a knife rest and a rocking handle fixing mechanism of a pencil sharpener, which comprises a knife rest 1 and a rocking handle 2, wherein the side where the knife rest 1 is arranged is the front side, the side where the rocking handle 2 is arranged is the rear side, the rear end of the knife rest 1 is connected with the front end of the rocking handle 2, a connecting part 11 is arranged at the rear end of the knife rest 1, a mounting part 21 matched with the connecting part 11 is arranged at the front end of the rocking handle 2, the rear end of the connecting part 11 is matched with the periphery Xiang Chuandong of the mounting part 21, the connecting part 11 is of a special-shaped column structure and the mounting part 21 is of a special-shaped hole structure, so that the knife rest 1 is limited relative to the rocking handle 2 in a circumferential rotation way, the connecting part 11 is inserted into the mounting part 21 and is matched with the limit of the circumferential rotation of the mounting part 21, the connecting part 11 cannot rotate relative to the rocking handle 2, and a user only needs to drive the rocking handle 2 to rotate, so that the knife rest 1 can synchronously rotate.

As shown in fig. 2, 3 and 4, the mounting portion 21 is provided with an elastic buckle 22, the connecting portion 11 is provided with a limiting structure 12 matched with the elastic buckle 22, when the connecting portion 11 is inserted into the mounting portion 21, the elastic buckle 22 abuts against the limiting structure 12 and can deform by elasticity so as to be buckled with the limiting structure 12, and the elastic buckle 22 cooperates with the limiting structure 12 to prevent the connecting portion 11 from retreating relative to the mounting portion 21 and separating from the mounting portion 21; the front end of connecting portion 11 is provided with boss 13, boss 13 and connecting portion 11 are integrated into one piece structure, this boss 13 can be the part of connecting portion 11 also can be independent part, when connecting portion 11 inserts installation department 21, connecting portion 11 is spacing through boss 13 and the outside preceding terminal surface of installation department 21 support, with the length of control connecting portion 11 inserted installation department 21, connecting portion 11 realizes axial slip spacing through boss 13 and elasticity buckle 22, thereby make knife rest 1 fixed for rocking handle 2, only need with connecting portion 11 and installation department 21 peg graft and can realize fixing during the assembly, the assembly is simple and stable in structure.

As shown in fig. 5, the elastic buckle 22 is provided with a first guiding inclined plane 221, the limit structure 12 passes through the first guiding inclined plane 221 and is buckled with the elastic buckle 22, when the connecting part 11 is inserted into the mounting part 21, the elastic buckle 22 abuts against the limit structure 12, and under the guiding action of the first guiding inclined plane 221, the buckling of the elastic buckle 22 and the limit structure 12 can be smoother and more labor-saving, thereby being beneficial to improving the assembly efficiency.

Two specific limiting structures 12 may be provided in this embodiment, one of which is: as shown in fig. 2 and fig. 4, the limiting structure 12 is a protruding block disposed on the outer surface of the connecting portion 11, when the connecting portion 11 is inserted into the mounting portion 21, the protruding block abuts against the first guiding inclined plane 221 of the elastic buckle 22, so that the elastic buckle 22 is deformed, the protruding block can sweep the elastic buckle 22 and is buckled with the elastic buckle 22, so that the connecting portion 11 cannot be retracted relative to the mounting portion 21 to be separated from the mounting portion 21, and the protruding block has a simple structure, low production cost and reliable structure; the other is as follows: the limit structure 12 is a groove formed in the outer surface of the connecting portion 11, when the connecting portion 11 is inserted into the mounting portion 21, the outer periphery of the connecting portion 11 abuts against the first guide inclined surface 221 of the elastic buckle 22, so that the elastic buckle 22 deforms, when the elastic buckle 22 moves to the groove relative to the connecting portion 11, the elastic buckle 22 enters the groove under the elastic action, so that the connecting portion 11 cannot be retracted relative to the mounting portion 21 to be separated from the mounting portion 21, and the groove has a simple structure, low production cost and reliable structure.

More specifically, as shown in fig. 2 and 3, two elastic buckles 22 are provided, and the two elastic buckles 22 are uniformly and oppositely arranged along the circumferential direction of the mounting portion 21, so that the buckle connection between the mounting portion 21 and the connecting portion 11 is more stable and reliable, and the mounting portion 21 and the connecting portion 11 are not easy to separate.

More specifically, as shown in fig. 2, the front end surface of the elastic buckle 22 is lower than the front end surface of the mounting portion 21, so that a notch 211 for the spacing structure 12 to penetrate is formed at the front end of the mounting portion 21 at the position of the elastic buckle 22, and by setting the elastic buckle 22 lower than the mounting portion 21, the mounting portion 21 forms a notch 211 at the position of the elastic buckle 22, and the spacing structure 12 can be inserted into the mounting portion 21 by aligning the notch interface with the elastic buckle 22, thereby being beneficial to improving the assembly efficiency.

More specifically, as shown in fig. 5, the front end of the inner wall of the mounting portion 21 is provided with a second guiding inclined plane 212, the rear end of the connecting portion 11 is inserted into the mounting portion 21 along the second guiding inclined plane 212, the outer wall of the connecting portion 11 is matched with the inner wall of the mounting portion 21 in size, the connecting portion 11 is connected with the mounting portion 21 after alignment, the inner diameter of the front end of the mounting portion 21 is enlarged by arranging the second guiding inclined plane 212 at the front end of the inner wall of the mounting portion 21, and under the guiding action of the second guiding inclined plane 212, the connecting portion 11 is easier to be inserted into the mounting portion 21, so that the assembly efficiency is improved.

The utility model also discloses a pencil sharpener, which comprises the knife rest and the rocking handle fixing mechanism of the pencil sharpener.

The embodiment describes a knife rest and rocking handle fixed establishment and pencil sharpener of pencil sharpener, this fixed establishment includes knife rest 1 and rocking handle 2, knife rest 1 is provided with connecting portion 11, rocking handle 2 is provided with installation department 21, connecting portion 11 and installation department 21 cooperation for knife rest 1 rotates spacingly for rocking handle 2 circumference, through setting up elastic buckle 22 in installation department 21, set up limit structure 12 in connecting portion 11, make connecting portion 11 be fixed in installation department 21 through elastic buckle 22 and limit structure 12 cooperation, only need to peg graft connecting portion 11 and installation department 21 during the assembly and can realize fixing, the assembly is simple and stable in structure.

The present utility model is not limited to the above-mentioned preferred embodiments, and any person who can obtain other various products under the teaching of the present utility model can make any changes in shape or structure, and all the technical solutions that are the same or similar to the present utility model fall within the scope of the present utility model.

Claims (8)

1. The utility model provides a knife rest and rocking handle fixed establishment of pencil sharpener, includes knife rest (1) and rocking handle (2), the rear end of knife rest (1) is connected with the front end of rocking handle (2), its characterized in that, the rear end of knife rest (1) is provided with connecting portion (11), the front end of rocking handle (2) is provided with installation department (21) with connecting portion (11) adaptation, the rear end and the installation department (21) circumference transmission cooperation of connecting portion (11) for knife rest (1) are spacing for rocking handle (2) circumference rotation, installation department (21) are provided with elastic buckle (22), connecting portion (11) are provided with limit structure (12) with elastic buckle (22) adaptation, the front end of connecting portion (11) is provided with boss (13), limit structure (12) and elastic buckle (22) lock to the rear end face of boss (13) is supported with the front end of installation department (21) and is leaned on for knife rest (1) is spacing for rocking handle (2) axial.

2. The fixing mechanism for the knife rest and the rocking handle of the pencil sharpener according to claim 1, wherein the elastic buckle (22) is provided with a first guiding inclined plane (221), and the limiting structure (12) passes through the first guiding inclined plane (221) to be buckled with the elastic buckle (22).

3. The fixing mechanism for the tool rest and the crank of the pencil sharpener according to claim 2, wherein the limiting structure (12) is a bump arranged on the outer surface of the connecting portion (11).

4. The fixing mechanism for the tool rest and the crank of the pencil sharpener according to claim 2, wherein the limiting structure (12) is a groove arranged on the outer surface of the connecting portion (11).

5. A holder and crank fixing mechanism for a pencil sharpener according to claim 1 or 2, wherein said resilient catch (22) is provided with at least two.

6. A holder and crank fixing mechanism for a pencil sharpener according to claim 1 or 3, wherein the front end surface of the elastic buckle (22) is lower than the front end surface of the mounting portion (21), such that the front end of the mounting portion (21) forms a notch (211) for the spacing structure (12) to penetrate through at the elastic buckle (22).

7. The holder and crank fixing mechanism of a pencil sharpener according to claim 1, wherein the front end of the inner wall of said mounting portion (21) is provided with a second guiding inclined surface (212), and the rear end of said connecting portion (11) is inserted into the mounting portion (21) along the second guiding inclined surface (212).

8. A pencil sharpener comprising a pencil sharpener blade holder and a crank fixing mechanism as defined in any one of claims 1-7.