CN1169653C - Adjustable knife sharpener - Google Patents

Abstract

The invention discloses an adjustable knife sharpener, which mainly utilizes a driving set arranged in the knife sharpener to drive a sharpening blade after being changed, so that an included angle formed by the sharpening blade is changed, the included angle formed by the sharpening blade can be changed according to the thickness of a cutting edge of the knife, and the adjustable knife sharpener is suitable for various knives so as to reduce the cost for purchasing knife sharpeners with various fixed sizes.

Description

adjustable sharpener

technical field

The invention relates to a knife sharpener.

Background technique

Generally, the knife sharpener (as shown in Figure 1 ) seen on the market mainly installs a group of grinding blades 11 on the main frame body 1, and offers a V-shaped groove 12 on the grinding blades 11, and The inner wall surface 13 of the V-shaped groove 12 is made of a harder material than the cutter; Place it in the V-shaped groove 12 of the sharpener, fix the main frame body 1 at the same time, move the cutter, make the cutter move in the V-shaped groove 12 and generate friction with the wall 13, so that the cutter can be The blade of the knife can be restored to a sharp state, so that the knife can be used again; from the above-mentioned structure and use of the known knife sharpener, the sharpener seems to be sufficient to restore the sharpness of the blade of the blunted knife, but after in-depth discussion With research, it is not difficult to find that there are still defects. The defect is that the general knife sharpener is only suitable for knives with similar thickness, such as utility knives and carving knives. Kitchen knives require another set of sharpeners for use because of their thicker blades. In general, the thickness of the blades used by household knives varies, so multiple sets of sharpeners must be prepared for use. Different sets of sharpeners are relatively expensive in terms of cost.

Contents of the invention

The main purpose of the present invention is to provide an adjustable knife sharpener, which uses the driving group installed in the knife sharpener. After changing the driving group, the included angle formed by the two grinding blades can be changed, and the angle can be adjusted according to the cutting tool. The blade is thick and thin, and the angle formed by the sharpening blade is changed, so it can be applied to various knives, so as to reduce the cost of purchasing sharpeners of various sizes.

The invention provides an adjustable knife sharpener, comprising: a body, a guide rod, several grinding discs, an elastic element and a positioning rod, characterized in that: the body has a gripping part and a grinding The knife part is provided with a notch on the sharpening part, and an accommodation space is provided adjacent to the notch, the accommodation space communicates with the notch, and several openings are opened downward in the accommodation space , and a channel is opened downward along the opening, the opening communicates with the channel, and the channel communicates with the outside; a positioning hole is opened above the exit of the channel, and there is a space downward along the positioning hole, on which there is also A positioning hole opposite to the positioning hole is provided; the guide rod is provided with an inclined ring groove, and a positioning groove is also provided on the guide rod; the guide rod is rotatably pivoted in the passage, And a part is exposed outside the body, wherein the ring groove is just located between the openings of the body, and the positioning groove is just corresponding to the positioning hole of the body; the grinding disc has an inclined surface along the surrounding A pivot rod is formed outward, and a pivot is provided at the center of the grinding disc. The pivot is pivotally arranged in the housing space of the body in a swingable state, and two grinding discs are pivotally arranged in the housing space. , and the slopes of the two grinding discs form an included angle with each other, and are located between the angles of the notch of the body; the pivot rod passes through the opening of the body and is located in the ring groove of the guide rod; the elastic component is set In the space of the body; the positioning rod has a head and a body, the body passes through the positioning hole of the body downwards, passes through the space of the body, and the top of the body is just placed on the guide rod In the positioning groove, a buckle is fastened on the body in the space, and one end of the elastic component is limited by the space, and the other end is limited by the buckle.

In the adjustable knife sharpener of the present invention, a knife can also be pivotally arranged on the grip part, and the knife can be safely placed in the grip part and form a plane with the grip part. The snap button that the knife on the grip part is stuck.

In the adjustable knife sharpener of the present invention, a sharpening stone can also be arranged below the sharpening part.

In the adjustable knife sharpener of the present invention, two anti-slip pieces can also be arranged below the knife sharpening part.

Description of drawings

Figure 1 is a perspective view of a known knife sharpener.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a perspective view of the present invention.

Fig. 4 is a reference diagram of another use state of the present invention.

Detailed ways

Referring to Fig. 2 and Fig. 3, an adjustable knife sharpener provided by the present invention includes a body 2, a guide rod 3, several grinding discs 4, an elastic component 5 and a positioning rod 6, and is characterized in that:

The main body 2 has a gripping portion 20 and a sharpening portion 21, on which a knife 201 is pivoted, and in a normal state, the knife 201 is safely placed in the gripping portion 20, And become a plane with the grip portion 20; in addition, a V-shaped notch 22 is provided on the sharpening portion 21 (the present embodiment is provided with two V-shaped notches 22 as an example), and adjacent to the V-shaped notch 22 is provided with an accommodating space 23, and the accommodating space 23 communicates with the notch 22, and an opening 24 is provided downward in the accommodating space 23, and a passage 25 is provided downward along the opening 24, and The opening 24 communicates with the passage 25, and the passage 25 communicates with the outside; in addition, a positioning hole 26 is provided above the exit of the passage 25, and a space 27 is provided downward along the positioning hole 26. Another positioning hole 26 opposite to the positioning hole 26; finally, a whetstone 28 and two anti-slip parts 29 are arranged on the bottom of the body 2, and the anti-slip parts 29 are higher than the whetstone 28;

The guide rod 3 is a rod body, on which there are ring grooves 31 (in this embodiment, four ring grooves 31 are taken as an example), and the ring grooves 31 are inclined ring grooves 31, and in the guide There are positioning grooves 32 on the rod 3 (three positioning grooves 32 are taken as an example in this embodiment); the guide rod 3 is rotatably pivoted in the channel 25, and a part is exposed outside, wherein the annular groove 31 Just located between the openings 24 of the body 2, and the positioning groove 32 corresponds to the positioning hole 26 of the body 2;

The several grinding discs 4 (taking four grinding discs 4 as an example in this embodiment) have an inclined surface 41 on it, and a pivot 42 is provided at the center, and a pivot is formed outward along the periphery. The rod 43 is pivotally arranged in the accommodating space 23 of the body 2 in a swingable state by using the pivot 42 thereon, wherein two grinding discs 4 are pivotally arranged in each accommodating space 23, and the two grinding discs 4 The inclined surfaces 41 form an included angle with each other, and are located between the included angles of the notches 22 of the body 2 , the pivot 43 passes through the opening 24 of the sharpening part 21 and is located in the annular groove 31 of the guide rod 3 ;

The elastic component 5 is arranged between the space 27 of the body 2;

The locating rod 6 has a head 61 and a body 62, the body 62 is passed through the positioning hole 26 of the sharpening part 21 downwards, and passes through the space 27, so that the top of the body 62 is just placed on the guide. In the positioning groove 32 of the rod 3 , and then in the space 27 , a clasp 63 is fastened on the body 62 , so that one end of the elastic component 5 is limited by the space 27 and the other end is constrained by the clasp 63 .

The above is the relative position of the assembly of each relevant component part of the present invention.

The operation principle of the present invention will be described in detail in conjunction with the drawings, as shown in Figure 3, the passivated cutter is placed in the V-shaped notch 22 of the present invention to reciprocate, and at the same time press the grip part 20, use the angle formed by the inclined surface 41 of the grinding disc 4 in the concave gap 22 to rub the tool, so that the blade of the tool forms a sharp shape. 61 pull upwards, and then rotate the guide rod 3 at an angle, so that the positioning groove 32 on the guide rod 3 is just below the body 62 of the positioning rod 6. At this time, the positioning rod 6 is released, and the action of the elastic assembly 5 , the body 62 of the positioning rod 6 is placed in the positioning groove 32, so that the guide rod 3 is positioned, wherein the grinding plate 4 is driven by the guide rod 3 to increase or decrease the angle clamp formed by it, In this way, the included angle formed by the inclined surface 41 of the grinding disc 4 can be changed according to the thickness of the blade of the cutter, and it is suitable for blades of various cutters. The cost of purchasing a knife sharpener.

It is worth mentioning that a knife 201 can also be pivotally arranged on the holding part, and the knife 201 can be used for peeling fruit, and the knife 201 can be turned over to the sharpening part 21 (as shown in FIG. The button 7 is stuck, and the hand can also hold the grip part 20 to perform the function of fruit peeling, which makes the present invention more functional; in addition, the present invention can also use the whetstone 28 under the main body 2 Department can grind and establish the usefulness of arc-shaped cutter and cutting glass, and antiskid part 29 department can make the present invention more stable in use.

Claims (5)

1. An adjustable knife sharpener, comprising: a body, a guide rod, several grinding discs, an elastic component and a positioning rod, characterized in that: The main body has a gripping portion and a sharpening portion, a notch is opened on the sharpening portion, and an accommodating space is provided adjacent to the notch, and the accommodating space communicates with the notch, In addition, several openings are opened downward in the accommodating space, and a channel is opened downward along the opening, the opening communicates with the channel, and the channel communicates with the outside; a positioning hole is provided above the exit of the channel, and along the There is a space downwards along the positioning hole, and a positioning hole opposite to the positioning hole is also opened on it; The guide rod is provided with an inclined ring groove, and a positioning groove is also provided on the guide rod; the guide rod is rotatably arranged in the passage, and a part is exposed outside the body, wherein the The ring groove is just located between the openings of the body, and the positioning groove is just corresponding to the positioning hole of the body; The grinding disc has an inclined surface, a pivot bar is formed outward along the periphery, and a pivot shaft is arranged at the center of the grinding disc, and the pivot shaft is set in the housing space of the body in a swingable state , wherein there are two grinding discs in the accommodating space, and the slopes of the two grinding discs form an included angle with each other, and are located between the angles of the notch of the body; the pivot rod passes through the opening of the body and is located on the guide rod in the ring groove; The elastic component is arranged in the space of the body; The positioning rod has a head and a body, and the body passes through the positioning hole of the body and penetrates downwards through the space of the body. The top of the body is just placed in the positioning groove of the guide rod. A buckle is arranged on the inside and the body, and one end of the elastic component is restricted by the space, and the other end is restricted by the buckle. 2 . The adjustable knife sharpener according to claim 1 , wherein a knife is pivotally arranged on the gripping portion, and the knife can be safely placed in the gripping portion and forms a plane with the gripping portion. 3 . 3. The adjustable knife sharpener according to claim 2, characterized in that a clamping button for clamping the knife on the gripping part can be arranged above the sharpening part. 4. The adjustable knife sharpener according to claim 1, characterized in that a sharpening stone can be arranged under the sharpening part. 5. The adjustable knife sharpener according to claim 1, characterized in that, two anti-slip pieces can be arranged under the knife sharpening part.

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