Improved knife sharpening structure and knife sharpener thereof

Abstract

The utility model discloses an improved knife sharpening structure and a knife sharpener thereof, the improved knife sharpening structure comprises a base, a first knife sharpening part and a second knife sharpening part are rotatably arranged on the base, the first knife sharpening part is provided with a first knife sharpening surface, and the second knife sharpening part is provided with a second knife sharpening surface; the first knife sharpening face and the second knife sharpening face are arranged in a front-back staggered mode, a first knife sharpening groove of a V-shaped structure is formed between the first knife sharpening face and the second knife sharpening face, a knife edge moves towards the bottom of the first knife sharpening groove and makes contact with the first knife sharpening face and the second knife sharpening face, and after the knife edge exerts pressure downwards, the knife edge is fixed to the knife sharpening face. The first knife sharpening part and the second knife sharpening part are driven to rotate, the first knife sharpening face and the second knife sharpening face inwards rotate to tend to approach, and the distance between the first knife sharpening grooves is reduced; the utility model relates to the technical field of knife sharpening equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of knife sharpening equipment, more specifically to an improved knife sharpening structure and a knife sharpener thereof. Background Art

[0002] With the acceleration of the pace of modern life, the concept of time is getting stronger and stronger, and the profession of knife sharpener is disappearing rapidly, so knife sharpening has become a big trouble for cooking. Therefore, the knife sharpener product has been developed and launched on the market by many manufacturers. It has completely changed the traditional knife sharpening method, changing the single-sided knife sharpening to double-sided simultaneous knife sharpening, greatly improving the knife sharpening speed, and its unique knife sharpening angle makes the knife become extremely sharp. However, the existing knife sharpener, please refer to the announcement number CN208147663U, discloses a knife sharpener, whose knife sharpening structure forms a "V"-shaped knife sharpening groove for the blade to be placed in, but because its knife sharpening structure (embedded piece) is a fixed structural design, the spacing of the knife sharpening groove is not adjustable, and when dealing with the grinding requirements of blades of different thicknesses, the applicability is poor; in addition, it only has the function of sharpening the knife, and the functionality of the device is also less, which cannot meet the needs. Utility Model Content

[0003] In view of the shortcomings and defects of the prior art, a knife sharpening structure and a knife sharpener with good applicability, multiple functions and good sharpening effect are provided.

[0004] An improved knife sharpening structure comprises: a base, on which a first knife sharpening part and a second knife sharpening part are rotatably arranged, wherein the first knife sharpening part is provided with a first knife sharpening surface, and the second knife sharpening part is provided with a second knife sharpening surface;

[0005] The first grinding surface and the second grinding surface are arranged in an alternating manner front to back, and a first grinding groove with a "V"-shaped structure is formed between the first grinding surface and the second grinding surface. The blade moves toward the bottom of the first grinding groove and contacts the first grinding surface and the second grinding surface. After the blade is pressed downward, the first grinding part and the second grinding part are driven to rotate, and the first grinding surface and the second grinding surface rotate inward until they tend to get closer, so that the spacing of the first grinding groove is reduced.

[0006] After adopting the above structure, the improved knife sharpening structure of the utility model has the following advantages compared with the prior art: when performing the knife sharpening operation, the blade is inserted toward the bottom of the first knife sharpening groove. Since the first knife sharpening surface and the second knife sharpening surface are arranged in a front-to-back staggered manner, after the blade contacts the first knife sharpening surface and / or the second knife sharpening surface, and when the blade continues to be pressed downward, the first knife sharpening portion and / or the second knife sharpening portion can be rotated, and the first knife sharpening surface and the second knife sharpening surface rotate inwardly until they tend to be close to each other, so as to reduce the groove spacing of the first knife sharpening groove, and the first knife sharpening surface and the second knife sharpening surface are better fitted with the side of the blade, thereby improving the knife sharpening effect;

[0007] The variable groove spacing structure design can adapt to the sharpening needs of blades of various thicknesses, and the sharpening structure has better applicability.

[0008] As an improvement of the present invention, the first grinding part is located in front of the end surface of the second grinding part, the rotation axis of the first grinding part is parallel to the rotation axis of the second grinding part, and they can rotate 360 ​​degrees respectively;

[0009] The first grinding part and the second grinding part are both triangular sheet structures. The first grinding surfaces are arranged in a circular array on the first grinding part with the rotation axis as the center, and the second grinding surfaces are arranged in a circular array on the second grinding part with the rotation axis as the center.

[0010] As an improvement of the utility model, it also includes a third grinding part arranged on the base, the third grinding part and the second grinding part are arranged opposite to each other on the left and right, and the first grinding part is arranged between the second grinding part and the third grinding part;

[0011] The first grinding surface of the first grinding part and the third grinding surface of the third grinding part are arranged in a front-to-back staggered manner, and a second grinding groove with a "V"-shaped structure is formed between the third grinding surface and the first grinding surface.

[0012] As an improvement of the present invention, the first grinding part and the second grinding part are made of tungsten steel sheets.

[0013] As an improvement of the present utility model, the third sharpening part adopts a sharpening rod.

[0014] A knife sharpener, comprising an improved knife sharpening structure as described above, and also comprising a handle of a long strip structure, wherein the front end of the handle is provided with two connecting arms extending forward, the two connecting arms are arranged opposite to each other, and a through groove penetrating from top to bottom is formed between the two connecting arms, the base is connected between the front ends of the two connecting arms, the first knife sharpening groove is connected to the through groove along the circumferential direction A, one blade of a garden scissors is placed in the first knife sharpening groove, and the through groove can allow the other blade of the garden scissors to penetrate.

[0015] After adopting the above structure, the knife sharpener of the utility model has the following advantages compared with the prior art: the base of the knife sharpening structure in the present application is fixed to the front end of the connecting arm on the handle, and the handle is for the user to hold, and the structure is more compact, which is suitable for users to carry and use when going out. Of course, the base can also be fixed on a movable base (designed for home use, the structure is usually larger).

[0016] The connecting arm at the end of the handle extends the sharpening structure away from the handle, so that there is a certain safe distance between the knife and the user's hand during sharpening. The structural design is more ergonomic and improves the user experience.

[0017] The first sharpening groove and the through groove are arranged along the circumferential direction A. When the user sharpens the garden scissors, the garden scissors are first opened so that one of the blades enters the sharpening groove and the other blade enters the through groove. At this time, the main body of the garden scissors is rotated so that the sharpening surface and the side of the blade are in continuous contact, and the blade in the sharpening groove can be sharpened.

[0018] Of course, this device can also meet the sharpening needs of conventional scissors (such as tailor's scissors). When sharpening conventional scissors (such as tailor's scissors), first spread the scissors in an "eight" shape, and then place one of the blades into the sharpening groove. The conventional scissors can also be sharpened by pulling the handle or pulling the scissors.

[0019] The variable groove spacing structure design can adapt to the sharpening needs of scissor blades of various thicknesses and has better applicability. In addition, the sharpening surface fits tightly against the side of the scissor blade, which has a better effect on sharpening the scissor blade.

[0020] The through groove here meets the avoidance structure set for sharpening garden scissors. Through the above-mentioned avoidance structure, the knife sharpener meets the needs of sharpening garden scissors, and can also sharpen knives and tailor scissors. The multi-purpose performance of the knife sharpener is better.

[0021] As an improvement of the present invention, the bottom of the first grinding groove is inclined toward the through groove, so that the angle between the first grinding groove and the through groove is greater than 90°.

[0022] As an improvement of the utility model, the connecting arm is sleeved with a protective cover, and the protective cover surrounds the through slot and the knife sharpening structure in the internal space. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the knife sharpening structure of the utility model.

[0024] Figure 2 It is a schematic diagram of the position of the knife sharpening structure of the utility model on the handle.

[0025] Figure 3 It is a schematic diagram of the positions of the knife sharpening groove and the through groove of the utility model.

[0026] Figure 4 It is a schematic diagram of the connecting arm structure of the utility model.

[0027] Figure 5 It is a schematic diagram of the connecting arm of the utility model after being connected to the protective cover.

[0028] Figure 6 It is a structural schematic diagram of the utility model when it is used for sharpening a cutting tool.

[0029] Figure 7 The utility model is a schematic diagram of the structure when sharpening garden scissors.

[0030] As shown in the figure: 1. Base; 1.1. Handle; 1.2. Connecting arm; 1.21. Through slot; 2. First sharpening section; 2.1. First sharpening surface; 3. Second sharpening section; 3.1. Second sharpening surface; 4. First sharpening groove; 5. Third sharpening section; 5.1. Third sharpening surface; 6. Second sharpening groove; 7. Protective cover; 8. Connecting shaft; 9. Knife; 10. Garden scissors. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] An improved knife sharpening structure comprises: a base 1, on which a first knife sharpening part 2 and a second knife sharpening part 3 are rotatably arranged, wherein the first knife sharpening part 2 is provided with a first knife sharpening surface 2.1, and the second knife sharpening part 3 is provided with a second knife sharpening surface 3.1;

[0033] The first grinding surface 2.1 and the second grinding surface 3.1 are arranged in a staggered manner, and a first grinding groove 4 with a "V"-shaped structure is formed between the first grinding surface 2.1 and the second grinding surface 3.1. The blade moves toward the bottom of the first grinding groove 4 and contacts the first grinding surface 2.1 and the second grinding surface 3.1. After the blade is pressed downward, the first grinding part 2 and the second grinding part 3 are driven to rotate, and the first grinding surface 2.1 and the second grinding surface 3.1 rotate inwardly until they tend to be close to each other, so that the spacing between the first grinding grooves 4 is reduced.

[0034] After adopting the above structure, the improved knife sharpening structure of the utility model has the following advantages compared with the prior art: when performing the knife sharpening operation, the blade is inserted toward the bottom of the first knife sharpening groove 4. Since the first knife sharpening surface 2.1 and the second knife sharpening surface 3.1 are arranged in a front-to-back staggered manner, after the knife sharpening surface contacts the first knife sharpening surface 2.1 and / or the second knife sharpening surface, and when the knife sharpening surface continues to be pressed downward, the first knife sharpening portion 2 and / or the second knife sharpening portion 3 can be rotated, and the first knife sharpening surface 2.1 and the second knife sharpening surface 3.1 rotate inwardly until they tend to be close to each other, so as to reduce the groove spacing of the first knife sharpening groove 4, and the first knife sharpening surface 2.1 and the second knife sharpening surface 3.1 better fit the side of the knife sharpening surface, thereby improving the knife sharpening effect;

[0035] The variable groove spacing structure design can adapt to the sharpening needs of blades of various thicknesses, and the sharpening structure has better applicability.

[0036] As an improvement of the present invention, the first grinding part 2 is located in front of the end surface of the second grinding part 3, the rotation axis of the first grinding part 2 is parallel to the rotation axis of the second grinding part 3, and they can rotate 360 ​​degrees respectively;

[0037] The first grinding part 2 and the second grinding part 3 are both triangular sheet structures, the first grinding surfaces 2.1 are arranged in a circular array with the rotation axis as the center on the first grinding part 2, and the second grinding surfaces 3.1 are arranged in a circular array with the rotation axis as the center on the second grinding part 3. After the above improvement, the first grinding part 2 and the second grinding part 3 with triangular sheet structures are adopted, and the middle positions of the first grinding part 2 and the second grinding part 3 are rotatably connected to the base 1 through independent connecting shafts 8 respectively.

[0038] The grinding surfaces are arranged in a circular array with the rotation axis as the center. The first grinding surface 2.1 on the first grinding part 2 and the second grinding surface 3.1 on the second grinding part 3 can be configured to meet different grinding requirements (for example, coarse grinding, fine grinding, etc.). The required grinding surface can be switched by rotating the corresponding grinding part to make it cooperate with the side of the blade, thereby further increasing the functionality of the device and improving the user experience.

[0039] As an improvement of the utility model, it also includes a third grinding part 5 arranged on the base 1, the third grinding part 5 and the second grinding part 3 are arranged opposite to each other on the left and right, and the first grinding part 2 is arranged between the second grinding part 3 and the third grinding part 5;

[0040] The first grinding surface 2.1 of the first grinding part 2 and the third grinding surface 5.1 of the third grinding part 5 are arranged in a staggered manner, and a second grinding groove 6 with a "V"-shaped structure is formed between the third grinding surface 5.1 and the first grinding surface 2.1. When the blade is inserted into the second grinding groove 6, the blade applies pressure to the first grinding surface 2.1, and the first grinding part 2 can also rotate outward, and the first grinding surface 2.1 tends to approach the third grinding surface 5.1, so as to reduce the groove spacing of the second grinding groove 6, and the first grinding surface 2.1 and the third grinding surface 5.1 better fit the side of the blade, thereby improving the sharpening effect;

[0041] The second grinding groove 6 and the first grinding groove 4 are symmetrical in structure, and the second grinding groove 6 and the first grinding groove 4 can also be set as grinding grooves with different functions to meet various grinding requirements (such as coarse grinding, fine grinding, etc.); further enhance the functionality of the device, and the structural design is compact and space-saving.

[0042] As an improvement of the present invention, the first grinding part 2 and the second grinding part 3 are made of tungsten steel sheets.

[0043] As an improvement of the present invention, the third sharpening part 5 adopts a sharpening rod.

[0044] A knife sharpener, comprising an improved knife sharpening structure as described in any one of the above, and also comprising a handle 1.1 of a long strip structure, wherein two connecting arms 1.2 extending forward are arranged at the front end of the handle 1.1, the two connecting arms 1.2 are arranged opposite to each other, and a through groove 1.21 penetrating from top to bottom is formed therebetween, the base 1 is connected between the front ends of the two connecting arms 1.2, the first knife sharpening groove 4 is connected to the through groove 1.21 along the circumferential direction A, one blade of a garden scissors 10 is placed in the first knife sharpening groove 4, and the through groove 1.21 allows the other blade of the garden scissors 10 to penetrate.

[0045] After adopting the above structure, the knife sharpener of the utility model has the following advantages compared with the prior art: the base 1 of the knife sharpening structure in the present application is fixed to the front end of the connecting arm 1.2 on the handle 1.1, and the handle 1.1 is for the user to hold, and the structure is more compact, which is suitable for the user to carry and use when going out. Of course, the base 1 can also be fixed on a movable base (designed for home use, the structure is usually larger).

[0046] The connecting arm 1.2 arranged at the rear end of the handle 1.1 extends the sharpening structure away from the handle 1.1, so that during the sharpening operation, there is a certain safe distance between the knife 9 and the user's hand. The structural design is more ergonomic and improves the user's experience.

[0047] The first sharpening groove 4 and the through groove 1.21 are arranged along the circumferential direction A. When the user sharpens the garden scissors 10, the garden scissors 10 are first opened so that one of the blades enters the sharpening groove and the other blade enters the through groove 1.21. At this time, the main body of the garden scissors 10 is rotated so that the sharpening surface and the side of the blade are in continuous contact, and the blade in the sharpening groove can be sharpened;

[0048] Of course, the device can also meet the sharpening needs of conventional scissors (such as tailor's scissors). When sharpening conventional scissors (such as tailor's scissors), first spread the scissors in an "eight" shape, and then place one of the blades into the sharpening groove. The conventional scissors can also be sharpened by pulling the handle 1.1 or pulling the scissors.

[0049] The structural design with variable groove spacing can adapt to the sharpening needs of scissor blades of various thicknesses and has better applicability. In addition, the sharpening surface fits tightly against the side of the scissor blade, which has a better effect in sharpening the scissor blade.

[0050] The through groove 1.21 here meets the avoidance structure set for sharpening the garden scissors 10. Through the above-mentioned avoidance structure, the knife sharpener meets the needs of sharpening the garden scissors 10, and can also sharpen the knife 9 and the tailor's scissors, and the multi-purpose performance of the knife sharpener is better.

[0051] In addition, the second sharpening groove 6 is also connected to the through groove 1.21 in the circumferential direction. When one blade of the garden shears 10 is placed in the second sharpening groove 6, the other blade can also be inserted into the through groove 1.21. The function of the second sharpening groove 6 and the function of the first sharpening groove 4 can be designed differently (for example, one for coarse grinding and the other for fine grinding, etc.).

[0052] As an improvement of the present invention, the bottom of the first sharpening groove 4 is tilted toward the through groove 1.21, so that the angle between the first sharpening groove 4 and the through groove 1.21 is greater than 90°. The second sharpening groove 6 also adopts the same structural design as the first sharpening groove 4. When sharpening the knife / scissors, after the blade / scissors blade is adapted to the tilted sharpening groove (tilted sharpening surface), when pulling the knife 9 or turning the scissors, the tilted sharpening surface has a larger contact area and a longer contact time with the blade / scissors blade than the vertical sharpening surface, which can improve the sharpening effect.

[0053] As an improvement of the present invention, the connecting arm 1.2 is sleeved with a protective cover 7, and the protective cover 7 surrounds the through slot 1.21 and the sharpening structure in the internal space. After the protective cover 7 is connected, the connecting arm 1.2 can be covered as a whole, so that the sharpening structure and the connecting arm 1.2 are stored in the internal space of the protective cover 7, and the structure is prevented from leaking out, thereby improving the safety and aesthetics of the device.

[0054] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. An improved knife sharpening structure, characterized in that: include: A base (1), wherein a first grinding part (2) and a second grinding part (3) are rotatably provided on the base (1), wherein the first grinding part (2) is provided with a first grinding surface (2.1), and the second grinding part (3) is provided with a second grinding surface (3.1); The first grinding surface (2.1) and the second grinding surface (3.1) are arranged in a staggered manner, and a first grinding groove (4) with a "V"-shaped structure is formed between the first grinding surface (2.1) and the second grinding surface (3.1). The blade moves toward the bottom of the first grinding groove (4) and contacts the first grinding surface (2.1) and the second grinding surface (3.1). After the blade is pressed downward, the first grinding part (2) and the second grinding part (3) are driven to rotate, and the first grinding surface (2.1) and the second grinding surface (3.1) rotate inwardly until they tend to approach each other, so that the spacing of the first grinding groove (4) is reduced.

2. An improved knife sharpening structure according to claim 1, characterized in that: The first grinding part (2) is located in front of the end face of the second grinding part (3), the rotation axis of the first grinding part (2) is parallel to the rotation axis of the second grinding part (3), and they can respectively rotate 360 ​​degrees; The first grinding part (2) and the second grinding part (3) are both triangular sheet structures; the first grinding surfaces (2.1) are arranged in a circular array on the first grinding part (2) with the rotation axis as the center, and the second grinding surfaces (3.1) are arranged in a circular array on the second grinding part (3) with the rotation axis as the center.

3. An improved knife sharpening structure according to claim 2, characterized in that: It also includes a third grinding part (5) arranged on the base (1), the third grinding part (5) and the second grinding part (3) are arranged in a left-right opposite relationship, and the first grinding part (2) is arranged between the second grinding part (3) and the third grinding part (5); The first grinding surface (2.1) of the first grinding portion (2) and the third grinding surface (5.1) of the third grinding portion (5) are arranged in a front-to-back staggered manner, and a second grinding groove (6) with a "V"-shaped structure is formed between the third grinding surface (5.1) and the first grinding surface (2.1).

4. The improved knife sharpening structure according to claim 2, characterized in that: The first grinding part (2) and the second grinding part (3) are made of tungsten steel sheets.

5. The improved knife sharpening structure according to claim 3, characterized in that: The third sharpening part (5) adopts a sharpening rod.

6. A knife sharpener, comprising an improved knife sharpening structure according to any one of claims 1 to 5, characterized in that: The invention also comprises a handle (1.1) of a long strip structure, wherein the front end of the handle (1.1) is provided with two connecting arms (1.2) extending forward, the two connecting arms (1.2) are arranged opposite to each other, and a through groove (1.21) penetrating from top to bottom is formed between the two connecting arms (1.2), the base (1) is connected between the front ends of the two connecting arms (1.2), the first sharpening groove (4) and the through groove (1.21) are arranged to communicate with each other along the circumferential direction A, one blade of the garden scissors (10) is placed in the first sharpening groove (4), and the through groove (1.21) allows the other blade of the garden scissors (10) to penetrate.

7. A knife sharpener according to claim 6, characterized in that: The bottom of the first grinding groove (4) is arranged to be inclined toward the through groove (1.21), so that the angle between the first grinding groove (4) and the through groove (1.21) is greater than 90°.

8. A knife sharpener according to claim 6, characterized in that: The connecting arm (1.2) is sleeved with a protective cover (7), and the protective cover (7) surrounds the through slot (1.21) and the knife sharpening structure in an internal space.

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