Knife sharpener

Abstract

The utility model discloses a knife sharpener which comprises a handle, two turntables and a knife sharpening blade, the number of the turntables is two, the turntables are rotatably arranged at the two ends of the handle respectively, the outer surfaces of the turntables are sunken inwards to form a containing cavity, magnet holes are symmetrically formed in the two sides of the containing cavity, and adsorption magnets are embedded in the magnet holes; and the sharpening blade is semi-embedded in the accommodating cavity and is magnetically attracted with the attraction magnet, so that the position of the sharpening blade on the turntable is limited. According to the utility model, the adsorption magnet which can be magnetically attracted with the knife sharpening blade is designed on the turntable, the knife sharpening blade can be magnetically attracted and fixed on one side of the turntable through the adsorption magnet, so that subsequent knife sharpening operation can be carried out, when the knife sharpening blade needs to be replaced, the knife sharpening blade can be pulled out from the turntable by slightly exerting force through the hand clasping position, and the knife sharpening part can be replaced; the mounting strength is guaranteed, and meanwhile mounting and dismounting are more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of knife sharpeners, in particular to a knife sharpener with a simple structure and easy assembly and disassembly. Background Art

[0002] In daily life, knives are one of the essential kitchen utensils. The blade of a knife is the key part of the knife. After long-term use, the blade will become blunt. In order to improve the cutting effect of the knife, various knife sharpeners have emerged on the market.

[0003] Most knife sharpeners currently on the market include a handle, a threaded rod running through the handle, and sharpening parts installed on both sides of the threaded rod. The sharpening blade in the sharpening part is generally connected to the sharpening seat by threads or screws, which is inconvenient to replace the sharpening blade. If it is fixed with screws, additional tools are required for disassembly. In addition, since the threaded rod runs through the entire handle, the overall weight is heavy, and after removing one side, the other side must be removed with the help of tools (otherwise it will slip and be difficult to remove). After installation, the left and right positions must be adjusted to ensure uniform alignment. The installation and disassembly are too troublesome, resulting in an inability to meet the growing usage needs of users. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the present invention aims to provide a knife sharpener.

[0005] The technical solution adopted by the utility model is as follows: a knife sharpener, comprising: a handle; two turntables, which are rotatably arranged at both ends of the handle, the outer surface of the turntable is recessed inward to form a receiving cavity, magnet holes are symmetrically opened on both sides of the receiving cavity, and adsorption magnets are embedded in the magnet holes; a grinding blade, which is half embedded in the receiving cavity and magnetically attracted to the adsorption magnet to limit the position of the grinding blade on the turntable.

[0006] In a preferred embodiment, a bearing is further included. The centers of both ends of the handle protrude outward to form guide columns. The bearing is sleeved on the outer peripheral side of the guide columns. The inner end of the turntable is connected to the rotating part of the bearing.

[0007] In a preferred embodiment, a screw is further included, and a pressure plate is integrally provided on the screw. The guide column has a threaded hole adapted to the screw. When the screw is installed on the threaded hole, the pressure plate presses the fixed portion of the bearing onto the guide column.

[0008] In a preferred embodiment, an anti-slip ring is further included, and the anti-slip ring is sleeved on the outer circumference of the turntable.

[0009] In a preferred embodiment, a plurality of handle positions are provided along the circumference of the outer edge of the turntable.

[0010] In a preferred embodiment, a through hole is opened in the center of the turntable, and the through hole is coaxially arranged with the screw.

[0011] In a preferred embodiment, the outer peripheral surface of the middle portion of the handle is recessed inward to form a gripping groove.

[0012] To sum up, due to the adoption of the above technical solution, the beneficial effects of the utility model are as follows: an adsorption magnet that can be magnetically attracted to the grinding blade is designed on the turntable, and the grinding blade can be magnetically fixed to one side of the turntable through the adsorption magnet, so that subsequent sharpening operations can be carried out. When the grinding blade needs to be replaced, the grinding blade can be pulled out of the turntable with a little force by buckling the handle, and the grinding part can be replaced. While ensuring the installation strength, the installation and disassembly are more convenient. The other two grinding parts are designed separately from the handle, and the two grinding parts can be disassembled separately, with low cost, precise processing, no need for correction after disassembly and assembly, high stability, and improved practicality and safety of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the exploded three-dimensional structure of the utility model as a whole;

[0015] Figure 3 It is a schematic diagram of the partial cross-sectional planar structure of the entire utility model.

[0016] Markings in the figure: 1-handle, 101-grip groove, 102-guide column, 2-turntable, 201-handle position, 202-magnet hole, 203-through hole, 3-anti-slip ring, 4-blade grinding, 5-bearing, 6-adsorption magnet, 7-screw. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] A knife sharpener, see Figure 1-3, including a handle 1, a grinding blade 4 and a turntable 2, the turntable 2 is two and rotatably arranged at both ends of the handle 1, the outer surface of the turntable 2 is recessed inward to form a receiving cavity, and magnet holes 202 are symmetrically opened on both sides of the receiving cavity, and an adsorption magnet 6 is embedded inside the magnet hole 202; the grinding blade 4 is half embedded in the receiving cavity and is magnetically attracted to the adsorption magnet 6, which is used to limit the position of the grinding blade 4 on the turntable 2, and an adsorption magnet 6 that can be magnetically attracted to the grinding blade 4 is designed on the turntable 2, and the grinding blade 4 can be magnetically fixed to the turntable 2 through the adsorption magnet 6. When the blade 4 needs to be replaced, the blade 4 can be pulled out from the turntable 2 with a little force, so that the blade 4 can be replaced. It is more convenient to install and disassemble while ensuring the installation strength. Secondly, the blade 4 is semi-inlaid in the turntable 2. While ensuring the combined strength of the blade 4 and the turntable 2, the contact area between the blade 4 and the tool is also guaranteed, so that the tool part can be sharpened.

[0019] It should be mentioned here that the knife sharpener also includes a base part that cooperates with it (not shown in the figure, but can be known from the comparative documents). Since the main problem solved by the present invention is the replacement of the knife sharpening part, the structure of the base part will no longer be described in detail.

[0020] Furthermore, it also includes an anti-slip ring 3, which is sleeved on the outer peripheral side of the turntable 2. The designed anti-slip ring 3 can not only ensure that a sufficiently large friction force is generated with the placement plane during sharpening, thereby driving the sharpening part to rotate, making the sharpening more uniform, but also lift the sharpening part and separate it from the placement plane to prevent the sharpening part from scratching the placement plane while avoiding certain wet objects or corrosive objects on the placement plane from eroding the sharpening part. It can also have a certain shock resistance when the sharpening component collides, thereby increasing the service life of the sharpening part.

[0021] Optionally, the anti-slip ring 3 may be a silicone ring, a rubber ring or other materials, which is not limited here.

[0022] Furthermore, it also includes bearings 5 ​​and screws 7. The centers of both ends of the handle 1 protrude outward to form guide columns 102. The bearings 5 ​​are sleeved on the outer peripheral side of the guide columns 102. The inner end of the turntable 2 is connected to the rotating part of the bearing 5. A pressure plate is integrally provided on the screw 7. The guide column 102 has a threaded hole that is compatible with the screw 7. When the screw 7 is installed on the threaded hole, the pressure plate presses the fixed part of the bearing 5 on the guide column 102. Through the cooperation of the turntable 2 and the bearing 5, the turntable 2 can be rotated relative to the handle 1, so that the blade 4 can be sharpened more evenly and more fully during sharpening, thereby improving the sharpening effect. At the same time, the user can save more effort when sharpening the knife, and the tool has extremely high practicality.

[0023] In addition, the two sets of sharpening parts can be fixed to the handle 1 by two screws 7 respectively, and the sharpening parts can be replaced separately. Compared with the traditional through-type threaded rod (and the combination of threads and sharpening parts designed on both sides of the threaded rod), the overall weight is reduced, and the cost is also reduced. Moreover, compared with the traditional through-type threaded rod, when removing the sharpening part, after removing one side, the other side must be removed with the help of tools (otherwise it will slip and be difficult to remove), installation and removal are also simpler.

[0024] Furthermore, a through hole 501 is provided at the center of the turntable 2. The through hole 501 does not interfere with the screw 7, thereby facilitating the installation and removal of the entire sharpening part.

[0025] Furthermore, the outer peripheral surface of the middle portion of the handle 1 is recessed inward to form a gripping groove 101. The inwardly recessed gripping groove 101 can facilitate the user's grip while reducing the overall weight, thereby facilitating user use.

[0026] The handle 1 can be made of wood or other materials, which is not limited here.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A knife sharpener, characterized in that: include: handle; There are two turntables rotatably disposed at both ends of the handle, the outer surface of the turntable is inwardly recessed to form a receiving cavity, magnet holes are symmetrically opened on both sides of the receiving cavity, and adsorption magnets are embedded in the magnet holes; A grinding blade is half-embedded in the accommodating cavity and magnetically attracted to the adsorption magnet, so as to limit the position of the grinding blade on the turntable.

2. A knife sharpener according to claim 1, characterized in that: It also includes a bearing. The centers of both ends of the handle protrude outward to form a guide column. The bearing is sleeved on the outer peripheral side of the guide column. The inner end of the turntable is connected to the rotating part of the bearing.

3. A knife sharpener according to claim 2, characterized in that: It also includes a screw, which is integrally provided with a pressure plate. The guide column has a threaded hole that is compatible with the screw. When the screw is installed on the threaded hole, the pressure plate presses the fixing part of the bearing onto the guide column.

4. A knife sharpener according to claim 1, characterized in that: It also includes an anti-slip ring, which is sleeved on the outer peripheral side of the turntable.

5. A knife sharpener according to claim 1, characterized in that: A plurality of hand-holding positions are provided along the circumference of the outer edge of the turntable.

6. A knife sharpener according to claim 3, characterized in that: A through hole is provided at the center of the turntable, and the through hole is coaxially arranged with the screw.

7. A knife sharpener according to claim 1, characterized in that: The outer peripheral surface of the middle portion of the handle is inwardly recessed to form a gripping groove.

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