CN108214337B

CN108214337B - Three-fork knife sharpener

Info

Publication number: CN108214337B
Application number: CN201810076661.0A
Authority: CN
Inventors: 陈烁
Original assignee: Individual
Current assignee: Dongfang Light Source Group Co ltd
Priority date: 2018-01-26
Filing date: 2018-01-26
Publication date: 2020-05-26
Anticipated expiration: 2038-01-26
Also published as: CN108214337A

Abstract

The invention discloses a three-fork type knife sharpener, which belongs to the field of sharpeners and can reduce the occupation of volume. The grinding device comprises a handle and a grinding frame, wherein the grinding frame is trapezoidal and consists of a front wall and a rear wall of the grinding frame, a grinding shaft is connected between the front wall and the rear wall of the grinding frame, a trident-shaped grinding wheel is movably connected on the grinding shaft in a penetrating manner, a group of rough grinding ports, a group of fine grinding ports and a group of fine grinding ports are sequentially arranged on three forks of the grinding wheel, and included angles among the three forks are all 120 degrees; a cylindrical push rod which penetrates longitudinally is arranged in the middle of the top surface of the rear wall of the grinding frame on the grinding frame, a steel elastic strip which extends upwards into a corresponding hole in the push rod is fixedly arranged on the rear wall surface of the grinding frame below the push rod, and a circular stable hole is formed in one surface, which is opposite to the push rod, of each of the three forks on the grinding wheel. The design is suitable for places needing sharpening tools frequently.

Description

Three-fork knife sharpener

Technical Field

The invention relates to a grinding tool, in particular to a three-fork type knife sharpener.

Background

The knife sharpener is a tool used for grinding various cutting tools, in particular to a kitchen knife, replaces the traditional knife stone and oilstone which can be ground only by a higher grinding skill, and can safely and quickly grind the cutting edge of a knife only by pulling and pulling for several times due to the arrangement of a reasonable grinding included angle; the early sharpener is simple without a handle and is provided with a group of grinding openings, when in use, one hand is used to hold the other hand of the sharpener to operate a handle of a cutting tool to rub the cutting edge in the grinding openings for several times, the ground cutting edge of the cutting tool is rough, in recent years, sharpeners comprising two groups or three groups of grinding openings are provided with handles, the grinding openings of the groups are sequentially connected into a whole along the axial direction of the handles, generally divided into coarse grinding, fine grinding and respectively formed by emery forming grinding materials, tungsten steel sheet grinding materials and fine ceramic grinding material forming devices, the included angle of the grinding opening of each group is generally about 30-32 degrees, when in use, one hand holds the handle to press on a desktop to stabilize the whole sharpener to be motionless, holds the cutting tool to be respectively and sequentially pulled and ground in three groups of grinding openings from coarse to fine, the sharpeners become the market of sharpeners with high work efficiency, however, since the grinding ports of the knife sharpener are connected in series in one direction, the length of the sharpener is generally over 20cm, the overall size is large, the occupied space is large, and the large size is inconvenient for storage, transportation and storage, the improved knife sharpener with the reduced size is expected by people.

Disclosure of Invention

The invention aims to provide a novel technical scheme of a three-fork type knife sharpener, which can solve the problems.

The technical scheme of the invention comprises the following steps: the grinding device comprises a handle and a grinding frame, wherein the grinding frame is trapezoidal and consists of a front wall of the grinding frame, a rear wall of the grinding frame and a bottom plate, a grinding shaft is connected between the front wall and the rear wall of the grinding frame, a trident grinding wheel is movably connected on the grinding shaft in a penetrating manner, a group of rough grinding ports, a group of fine grinding ports and a group of fine grinding ports are sequentially arranged on three forks of the grinding wheel, and included angles among the three forks are all 120 degrees; a cylindrical push rod which penetrates longitudinally is arranged in the middle of the top surface of the rear wall of a grinding frame on the grinding frame, a steel elastic strip which extends upwards into a corresponding hole in the push rod is fixedly arranged on the vertical surface of the rear wall of the grinding frame below the push rod, a circular stable hole is formed in one surface, which is opposite to the push rod, of each fork on the grinding wheel, the push rod which is pushed forwards by operating the grinding wheel to rotate by an angle of 120 degrees can extend into the stable hole in one fork of the grinding wheel to fix the grinding wheel, and the push rod can return to the original position under the action of elastic restoring force of the elastic strip after the fingers which are pushed forwards are loosened, so that the fixation of the push rod on the grinding.

The invention has the beneficial effects that: the three grinding ports connected in series along the axis of the handle are concentrated on three forks of one grinding wheel, so that the volume occupation of the knife sharpener is greatly reduced.

Description of the drawings:

fig. 1 is a front view of the sharpener of the present design.

Fig. 2 is a plan view.

Fig. 3 is a view of the right side.

Fig. 4 is a half-sectional enlarged view of a partial detail in a front view.

In each figure, 1 is a handle, 2 is a push rod, 3 is a grinding frame rear wall, 4 is an elastic strip, 5 is a grinding wheel, 6 is a grinding opening, 7 is a grinding frame front wall, 8 is a grinding frame, 9 is a grinding shaft, 10 is a stable hole, and 11 is a bottom plate.

The specific implementation mode is as follows:

the design is illustrated below with reference to the accompanying drawings.

As shown in fig. 1, 2, 3 and 4, the three-fork sharpener of the design comprises a handle 1 and a sharpening frame 8, wherein the sharpening frame 8 is trapezoidal (as shown in fig. 3, right side view effect) and is arranged at the front end of the handle 1, the sharpening frame consists of a sharpening frame front wall 7, a sharpening frame rear wall 3 and a bottom plate 11 connecting the sharpening frame front wall and the sharpening frame rear wall, and the sharpening frame is trapezoidal with a small upper part and a large lower part, so that the sharpening frame can be more stably arranged on a desktop, and sharpening operation is convenient; a grinding shaft 9 is connected between the front wall and the rear wall of the grinding frame, a Y-shaped grinding wheel 5 is movably connected on the grinding shaft in a penetrating mode, namely the grinding wheel can rotate by a required angle around the grinding shaft under the operation of hands to adjust an adaptive grinding opening 6 to be upward, so that a cutter is conveniently ground, a group of rough grinding openings, a group of fine grinding openings and a group of fine grinding openings are sequentially arranged on three forks of the grinding wheel 5, and included angles among the three forks are all equal angles of 120 degrees; a cylindrical push rod 2 which penetrates longitudinally is arranged in the middle of the top surface of a grinding frame rear wall 3 on a grinding frame 8, a steel elastic strip 4 which extends upwards into a corresponding hole in the push rod is fixedly arranged on the vertical surface of the grinding frame rear wall below the push rod, a circular stable hole 10 is arranged on one surface, opposite to the push rod, of each fork on a grinding wheel, the push rod 2 pushed forwards by manually operating the grinding wheel 5 at an angle of 120 degrees extends into a stable hole in one fork of the grinding wheel to fix the grinding wheel, at the moment, the cutting edge of a cutter to be ground can be placed in each grinding opening from rough to fine and then to fine for drawing and grinding in sequence, the finger push rod which releases the pushing push rod forwards can return to the original position under the action of elastic restoring force of the elastic strip 4, and accordingly the fixation of the push rod 2 on the grinding wheel 5 is released so that the grinding wheel can rotate to adjust different grinding openings upwards.

Claims

1. A three-fork type knife sharpener comprises a handle and a grinding frame, and is characterized in that the grinding frame is trapezoidal and consists of a front wall of the grinding frame, a rear wall of the grinding frame and a bottom plate, a grinding shaft is connected between the front wall and the rear wall of the grinding frame, a three-fork type grinding wheel is movably connected on the grinding shaft in a penetrating manner, a group of coarse grinding openings, a group of fine grinding openings and a group of fine grinding openings are sequentially arranged on three forks of the grinding wheel, and included angles among the three forks are all 120 degrees; a cylindrical push rod which penetrates longitudinally is arranged in the middle of the top surface of the rear wall of a grinding frame on the grinding frame, a steel elastic strip which extends upwards into a corresponding hole in the push rod is fixedly arranged on the vertical surface of the rear wall of the grinding frame below the push rod, a circular stable hole is formed in one surface, which is opposite to the push rod, of each fork on the grinding wheel, the push rod which is pushed forwards by operating the grinding wheel to rotate by an angle of 120 degrees can extend into the stable hole in one fork of the grinding wheel to fix the grinding wheel, and the push rod can return to the original position under the action of elastic restoring force of the elastic strip after the fingers which are pushed forwards are loosened, so that the fixation of the push rod on the grinding.