Improved knife sharpener

Abstract

The utility model discloses a knife sharpener which is good in knife sharpening effect, high in efficiency and compact in structure, and comprises a knife sharpening part, a knife sharpening face of the knife sharpening part is arranged from a coarse grinding function to a fine grinding function along a first direction A; the blade part of the cutter is in contact with the cutter grinding surface at the head end of the first direction A, and the cutter is moved towards the tail end of the first direction A, so that the blade part is in contact with the cutter grinding surface with the coarse grinding function and is subjected to coarse grinding, and the blade part is in contact with the cutter grinding surface with the fine grinding function and is subjected to fine grinding; the utility model relates to the technical field of knife sharpeners.

Description

Technical Field

[0001] The utility model relates to the technical field of knife sharpeners, more specifically to an improved knife sharpener. Background Art

[0002] Existing knife sharpeners are generally divided into two types: electric knife sharpeners and non-electric knife sharpeners, both of which are used to sharpen knives such as kitchen knives or sharpen the knives.

[0003] Please refer to the electric belt sharpener disclosed in announcement number CN201483304U, which adopts the structure that a power source drives a single belt to rotate, and when used for sharpening, the blade of the tool is directly in contact with the grinding surface of the belt;

[0004] The sanding belt of this sharpener only has a single grinding function (coarse grinding or fine grinding) and has less functionality. During the sharpening operation, multiple sharpeners are needed to complete the process from coarse grinding to fine grinding of the blade. The operation time is long, the sharpening effect is poor, and it cannot meet the actual use needs of users. Utility Model Content

[0005] In view of the shortcomings and defects of the prior art, a knife sharpener with good knife sharpening effect, high efficiency and compact structure is provided.

[0006] An improved knife sharpener, comprising:

[0007] A sharpening portion, wherein the sharpening surface of the sharpening portion is arranged along a first direction A from a coarse grinding function to a fine grinding function;

[0008] The cutting edge of the tool contacts the grinding surface at the beginning of the first direction A, and the tool is moved toward the end of the first direction A, so that the cutting edge sequentially contacts the grinding surface with a coarse grinding function for coarse grinding, and contacts the grinding surface with a fine grinding function for fine grinding.

[0009] After adopting the above structure, the improved knife sharpener of the utility model has the following advantages compared with the prior art: when in use, the front end of the blade of the tool is brought into contact with the grinding surface at the head end of the first direction A, and then the tool is moved along the first direction A, and the blade sequentially contacts the grinding surface with the coarse grinding function and the grinding surface with the fine grinding function. The process of moving the tool once can enable the blade to complete the entire sharpening operation process from coarse grinding to fine grinding. The sharpening operation process requires a short time and has a good sharpening effect. Compared with the traditional knife sharpener that needs to be set up with multiple sharpening structures with different functions, the structure of the device is more compact and the cost is lower.

[0010] As an improvement of the utility model, the sharpening part is an abrasive belt, the abrasive belt is sleeved between the driving wheel and the driven wheel, and the driving wheel is driven to rotate by a power source.

[0011] As an improvement of the present invention, there are three sanding belts, which are sequentially sleeved between the driving wheel and the driven wheel along the first direction A, and are sequentially arranged along the first direction A as a sanding belt with a coarse grinding function, a sanding belt with a fine grinding function, and a sanding belt with a fine grinding function.

[0012] As an improvement of the utility model, the driving wheel and the driven wheel are respectively provided with three sleeve areas for the abrasive belt to be sleeved along the first direction A. The sleeve areas are independently coordinated with the abrasive belt. The sleeve areas include a straight area and a variable diameter area which is arranged at the tail end of the straight area and has a gradually decreasing diameter.

[0013] As an improvement of the utility model, an assembly space is provided inside the driving wheel, a power source frame is provided inside the assembly space, a power source is provided on the power source frame, and an output end of the power source passes through the power source frame and is coaxially linked with the driving wheel.

[0014] As an improvement of the utility model, the power source frame located outside the assembly space is fixed to the base through a connecting piece, and the driving wheel and the driven wheel are rotatably connected to the base.

[0015] As an improvement of the utility model, an extended connecting shaft is arranged at the other end of the driving wheel shaft, and the connecting shaft is connected to a grinding wheel.

[0016] As an improvement of the utility model, the grinding wheel is provided with an axially extending hexagonal shaft, and the connecting shaft is provided with a connecting hole for the hexagonal shaft to penetrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the utility model when the knife sharpening part is used for sharpening a knife.

[0019] Figure 3 It is a cross-sectional view of the utility model.

[0020] Figure 4 It is a structural schematic diagram of a driving wheel, a driven wheel and a grinding wheel of the utility model.

[0021] As shown in the figure: 1. Base; 2. Sharpening part; 3. Cutting tool; 3.1. Blade; 4. Driving wheel; 4.1. Assembly space; 4.11. Power source frame; 4.12. Power source; 4.2. Connecting shaft; 4.21. Connecting hole; 5. Driven wheel; 7. Sleeve area; 7.1. Straight area; 7.2. Variable diameter area; 8. Grinding wheel; 8.1. Hexagonal shaft. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] See also Figure 1-4 An improved knife sharpener is shown, comprising:

[0024] A sharpening part 2, wherein the sharpening surface of the sharpening part 2 is arranged along a first direction A from a coarse grinding function to a fine grinding function;

[0025] The blade 3.1 of the tool 3 contacts the grinding surface at the beginning of the first direction A, and the tool 3 is moved toward the end of the first direction A, so that the blade 3.1 contacts the grinding surface with coarse grinding function to be coarsely ground, and contacts the grinding surface with fine grinding function to be finely ground.

[0026] After adopting the above structure, the improved knife sharpener of the utility model has the following advantages compared with the prior art: when in use, the front end of one side of the blade 3.1 of the knife 3 is brought into contact with the sharpening surface at the head end of the first direction A, and then the knife 3 is moved along the first direction A, and one side of the blade 3.1 sequentially contacts the sharpening surface for the rough grinding function and the sharpening surface for the fine grinding function, and the process of moving the knife 3 once can complete the entire sharpening operation process from rough grinding to fine grinding on one side of the blade 3.1;

[0027] Furthermore, the front end of the other side of the blade 3.1 of the tool 3 is first brought into contact with the grinding surface with a rough grinding function, and then the tool 3 is moved along the first direction A. During the movement, the front end to the rear end of the blade 3.1 are subjected to rough grinding, fine grinding, and fine grinding in sequence. After the above operations are completed, the grinding of the two sides of the blade 3.1 of the tool 3 is completed.

[0028] The knife sharpening process takes a short time and has a good sharpening effect. Compared with the traditional knife sharpener that needs to be equipped with multiple sharpening structures with different functions, the structure of the device is more compact and the cost is lower.

[0029] As an improvement of the present invention, the sharpening part 2 is an abrasive belt, which is sleeved between the driving wheel 4 and the driven wheel 5, and the driving wheel 4 is driven to rotate by the power source 4.12. After the above improvement, the abrasive belt is used as the sharpening part 2, and the abrasive belt is tightened by the driving wheel 4 and the driven wheel 5. The driving wheel 4 is driven by the power source 4.12 to rotate and drive the abrasive belt to rotate. The user can grind the blade 3.1 of the tool 3 by contacting the grinding surface of the abrasive belt, which has the characteristics of convenient operation and better sharpening effect.

[0030] When the number of the abrasive belt is one, the grinding surfaces of the abrasive belt may be arranged along the first direction A to have a coarse grinding function to a fine grinding function.

[0031] As an improvement of the utility model, the number of the sanding belts is three, and the three sanding belts are sequentially sleeved between the driving wheel 4 and the driven wheel 5 along the first direction A, and the three sanding belts are sequentially arranged as a sanding belt with a rough grinding function, a sanding belt with a fine grinding function, and a sanding belt with a fine grinding function along the first direction A. After the above improvement, three independent sanding belts are arranged on the driving wheel 4, and the three independent sanding belts are respectively a sanding belt with a rough grinding function, a sanding belt with a fine grinding function, and a sanding belt with a fine grinding function. The independent sanding belts are easy to replace and reduce costs.

[0032] As an improvement of the utility model, the driving wheel 4 and the driven wheel 5 are respectively provided with three sleeve areas 7 for sleeves of the abrasive belts along the first direction A. The sleeve areas 7 are independently matched with the abrasive belts, and the sleeve areas 7 include a straight area 7.1 and a variable diameter area 7.2 which is provided at the tail end of the straight area 7.1 and has a gradually decreasing diameter. The outer peripheral surfaces of the straight areas 7.1 of the three sleeve areas 7 are coplanar. After the abrasive belts are sleeved on the sleeve areas 7, the straight areas 7.1 can support the grinding surfaces of the three abrasive belts so that the grinding surfaces of the three abrasive belts are coplanar. When the tool 3 moves in a single direction, the contact between the blade and the grinding surface is stable and consistent, thereby improving the grinding effect on the blade.

[0033] In addition, the variable diameter area 7.2 can gradually tilt the grinding surface at the rear end of the abrasive belt and lower it so that its height is gradually lower than the grinding surface. When the tool 3 moves in a single direction, the continuous contact between the grinding surface and the blade 3.1 can be reduced to avoid excessive grinding. At the same time, after a gap appears between the grinding surface and the blade 3.1, the rear or front of the blade will not be stuck with the front of the abrasive belt, and it can smoothly transition to the grinding surface of the next abrasive belt.

[0034] As an improvement of the utility model, the driving wheel 4 is provided with an assembly space 4.1 inside, the assembly space 4.1 is provided with a power source frame 4.11 inside, the power source frame 4.11 is provided with a power source 4.12, and the output end of the power source 4.12 passes through the power source frame 4.11 and is coaxially linked with the driving wheel 4. After the above improvement, the power source 4.12 is arranged on the power source frame 4.11 of the assembly space 4.1 inside the driving wheel 4, so that the structure is compact, the space occupation is reduced, it is conducive to the miniaturization of the device, and the structure is beautiful.

[0035] The power source 4.11 may be a motor or a mechanism that outputs a rotational torque.

[0036] As an improvement of the utility model, the power source frame 4.11 located outside the assembly space 4.1 is fixed to the base 1 through a connecting piece, and the driving wheel 4 and the driven wheel 5 are rotatably connected to the base 1. After the above improvement, one end of the power source frame 4.11 extends out from the opening at one end of the driving wheel 4 axis, and is fixedly connected to the base 1 through a connecting piece, which has the characteristics of compact structure and beautiful appearance.

[0037] As an improvement of the utility model, the other axial end of the driving wheel 4 is provided with an extended connecting shaft 4.2, and the connecting shaft 4.2 is connected to a grinding wheel 8. After the above improvement, the grinding wheel 8 is coaxially connected to the connecting shaft 4.2 on the driving wheel 4, and the grinding wheel 8 rotates coaxially with the driving wheel 4. The user can use the rotating grinding wheel 8 to sharpen the tool 3, and the device has multiple functions, which improves the user's experience.

[0038] As an improvement of the present invention, the grinding wheel 8 is provided with an axially extending hexagonal shaft, and the connecting shaft 4.2 is provided with a connecting hole 4.21 for the hexagonal shaft to penetrate. The connecting hole 4.21 is structurally adapted to the hexagonal shaft, and the hexagonal shaft is plugged into the connecting hole 4.21. When the hexagonal shaft is inserted into the connecting hole 4.21, the grinding wheel 8 can be coaxially connected to the driving wheel 4; the hexagonal shaft can also be removed from the connecting hole 4.21 to disconnect the connection between the grinding wheel 8 and the driving wheel 4. The grinding wheel 8 is detachable in structure. When the user uses the sharpening part 2, the grinding wheel 8 needs to be removed, and then installed when the grinding wheel 8 is used. It has the characteristics of simple disassembly and assembly and convenient use.

[0039] 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 sharpener, characterized in that: include: A base (1), and a sharpening portion (2) arranged on the base (1), wherein the sharpening surface of the sharpening portion (2) is arranged along a first direction A to have a coarse grinding function and a fine grinding function; The blade (3.1) of the tool (3) contacts the grinding surface at the beginning of the first direction A, and the tool (3) is moved toward the end of the first direction A, so that the blade (3.1) sequentially contacts the grinding surface with a coarse grinding function to be coarsely ground, and contacts the grinding surface with a fine grinding function to be finely ground.

2. An improved knife sharpener according to claim 1, characterized in that: The sharpening part (2) is a sanding belt, which is sleeved between a driving wheel (4) and a driven wheel (5), and the driving wheel (4) is driven to rotate by a power source (4.12).

3. An improved knife sharpener according to claim 2, characterized in that: The number of the sanding belts is three, and the three sanding belts are sequentially sleeved between the driving wheel (4) and the driven wheel (5) along the first direction A. The three sanding belts are sequentially arranged along the first direction A as a sanding belt with a coarse grinding function, a sanding belt with a fine grinding function, and a sanding belt with a fine grinding function.

4. An improved knife sharpener according to claim 3, characterized in that: The driving wheel (4) and the driven wheel (5) are respectively provided with three sleeve areas (7) for sleeves of abrasive belts along a first direction A. The sleeve areas (7) are independently arranged in cooperation with the abrasive belts. The sleeve areas (7) include a straight area (7.1) and a diameter-changing area (7.2) which is arranged at the rear end of the straight area (7.1) and has a gradually decreasing diameter.

5. An improved knife sharpener according to claim 2, characterized in that: An assembly space (4.1) is provided inside the driving wheel (4), a power source frame (4.11) is provided inside the assembly space (4.1), a power source (4.12) is provided on the power source frame (4.11), and an output end of the power source (4.12) passes through the power source frame (4.11) and is coaxially linked with the driving wheel (4).

6. An improved knife sharpener according to claim 5, characterized in that: The power source frame (4.11) located outside the assembly space (4.1) is fixed to the base (1) via a connecting piece, and the driving wheel (4) and the driven wheel (5) are rotatably connected to the base (1).

7. An improved knife sharpener according to claim 2, characterized in that: An extended connecting shaft (4.2) is provided at the other axial end of the driving wheel (4), and the connecting shaft (4.2) is connected to a grinding wheel (8).

8. An improved knife sharpener according to claim 7, characterized in that: The grinding wheel (8) is provided with an axially extending hexagonal shaft, and the connecting shaft (4.2) is provided with a connecting hole (4.21) for the hexagonal shaft to penetrate.

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