A knife sharpener

Abstract

The invention discloses a knife sharpener, comprising a shell body formed by splicing a first half shell and a second half shell, the shell body comprising a knife sharpening part and a handle part, the first half shell and the second half shell are positioned and fixed by a positioning column structure, the positioning column structure comprising a first positioning column, a second positioning column, a third positioning column and a fourth positioning column; the knife sharpener also comprises a first knife sharpening bracket sleeved on the first positioning column and the fourth positioning column, a second knife sharpening bracket sleeved on the second positioning column and the third positioning column, a first knife sharpening strip and a second knife sharpening strip, the first knife sharpening bracket and the second knife sharpening bracket are cross-distributed to form an X-shaped angle structure capable of clamping a knife edge; a first track groove is provided at the upper end of the first knife sharpening bracket, a first spring cavity is provided at the lower end of the first knife sharpening bracket, a first spring is provided in the first spring cavity; a second track groove is provided at the upper end of the second knife sharpening bracket, a second spring cavity is provided at the lower end of the second knife sharpening bracket, a second spring is provided in the second spring cavity.

Description

Technical Field

[0001] The invention relates to the technical field of knife sharpening tools, in particular to a knife sharpener. Background Art

[0002] Compared with traditional knife sharpeners, modern knife sharpeners have the advantages of fast sharpening speed, simple operation, convenient carrying, and beautiful appearance. They are scientific, practical, efficient, and convenient knife sharpeners, suitable for various knives such as kitchen knives, outdoor knives, Damascus knives, and ceramic knives. Their characteristics are that they transform traditional single-sided sharpening into double-sided sharpening, which fundamentally changes the method, angle, and efficiency of sharpening, greatly improving the efficiency of sharpening. Modern knife sharpeners are increasingly widely used in daily life. The blade of a knife generally includes three parts: the back of the knife, the blade body, and the blade. The angle of the blade is different, and the blade angle is often specifically set according to the purpose. The sharpening angle of the existing sharpener is generally a fixed sharpening angle, which does not have an adjustment function and cannot adapt to blades of different angles. It often just hardens the blade angle into the sharpening angle of the sharpener, and cannot retain the blade's own angle, which affects the use effect of the blade. In addition, the internal structure of the existing knife sharpener is relatively complicated, the processing and assembly processes are numerous and time-consuming, and the assembly efficiency is low, which makes it difficult to improve the production efficiency and reduce the production cost.

[0003] Therefore, how to realize a knife sharpener with a novel and simple structure, the function of adapting to the blade and automatically adjusting the sharpening angle, tailoring the blade into a suitable sharpening angle, high flexibility, retaining the blade's own angle, ensuring the use effect of the blade, a very wide range of applications, strong versatility, and a positioning column structure with dual functions, one object for multiple uses, ingenious structural design, effective simplification of product structure, simplification of processing and assembly procedures, easy and quick assembly, improved production efficiency, and reduced production costs is a technical problem that needs to be urgently solved in the industry. Summary of the invention

[0004] The main purpose of the present invention is to provide a knife sharpener, which aims to achieve a novel and simple structure, has the function of adapting to the blade and automatically adjusting the sharpening angle, tailor-made for the blade to make a suitable sharpening angle, has high flexibility, retains the angle of the blade itself, ensures the use effect of the blade, has a very wide range of applications, strong versatility, and the positioning column structure has a dual role, one object has multiple uses, the structural design is ingenious, effectively simplifies the product structure, simplifies the processing and assembly procedures, is easy and quick to assemble, improves production efficiency, and reduces production costs.

[0005] The present invention provides a knife sharpener, comprising a shell body formed by a first half shell and a second half shell, the shell body comprising a knife sharpening portion with a knife sharpening opening and a handle portion convenient for human hand holding, the first half shell and the second half shell are positioned and fixed by a positioning column structure, the positioning column structure comprising a first positioning column located at the upper left end of the knife sharpening opening, a second positioning column located at the upper right end of the knife sharpening opening, a third positioning column located at the lower left end of the knife sharpening opening, and a fourth positioning column located at the lower right end of the knife sharpening opening; the knife sharpener also comprises a first knife sharpening bracket in a Z shape and sleeved on the first positioning column and the fourth positioning column, a second positioning column and a third positioning column located at the lower right end of the knife sharpening opening, and a third positioning column located at the lower right end of the knife sharpening opening. The first knife sharpening bracket is provided with a Z-shaped second knife sharpening bracket on the column, a first knife sharpening strip for sharpening operation is arranged on the inner side of the first knife sharpening bracket, and a second knife sharpening strip for sharpening operation is arranged on the inner side of the second knife sharpening bracket. The first knife sharpening bracket and the second knife sharpening bracket are cross-distributed to form an X-shaped angle structure that can clamp the blade; the upper end of the first knife sharpening bracket is provided with a first track groove that can move along the first positioning column, the lower end of the first knife sharpening bracket is provided with a first spring cavity that is sleeved outside the fourth positioning column, and the first spring cavity is provided with a first spring that is sleeved outside the fourth positioning column. The two ends of the first spring are respectively fixed to the fourth positioning column and the first knife sharpening bracket. The second knife sharpening bracket is provided with a second track groove that can move along the second positioning column at the upper end, and a second spring cavity that is sleeved outside the third positioning column is provided at the lower end of the second knife sharpening bracket. A second spring that is sleeved outside the third positioning column is provided in the second spring cavity, and two ends of the second spring are respectively fixed to the third positioning column and the second knife sharpening bracket; when the blade card is inserted into the X-shaped angle structure, the first knife sharpening bracket and the second knife sharpening bracket are opened, and the blade exerts a force on the first knife sharpening bracket and the second knife sharpening bracket toward both sides, and the first track groove at the upper end of the first knife sharpening bracket moves along the first positioning column, and the lower end of the first knife sharpening bracket moves and presses the first knife sharpening bracket. The spring applies force to cause the first spring to contract. The first spring in the contracted state has a restoring force on the first sharpening bracket, so that the first sharpening strip inside the first sharpening bracket is tightly clamped on the side of the blade, so that the sharpener adapts to the blade and automatically adjusts the sharpening angle. At the same time, the second track groove at the upper end of the second sharpening bracket moves along the second positioning column, and the lower end of the second sharpening bracket moves and applies force to the second spring, so that the second spring contracts. The second spring in the contracted state has a restoring force on the second sharpening bracket, so that the second sharpening strip inside the second sharpening bracket is tightly clamped on the side of the blade, so that the sharpener adapts to the blade and automatically adjusts the sharpening angle.

[0006] Preferably, the first sharpening bracket and the first sharpening strip, as well as the second sharpening bracket and the second sharpening strip are both fixed by snapping together, the first sharpening bracket is provided with a first slot on the inner side thereof, which is adapted and snapped together with the first sharpening strip, and the second sharpening bracket is provided with a second slot on the inner side thereof, which is adapted and snapped together with the second sharpening strip.

[0007] Preferably, a first spring slot which can be fixedly engaged with the first spring is provided at the first spring cavity of the first sharpening bracket, and a second spring slot which can be fixedly engaged with the second spring is provided at the second spring cavity of the second sharpening bracket.

[0008] Preferably, the first half shell and the second half shell are snap-fitted and fixed by a snap-fit ​​structure, and the snap-fit ​​structure includes a plurality of snap-fit ​​seats provided on the first half shell and a plurality of clamping blocks provided on the second half shell and snap-fitted and fixed with the snap-fit ​​seats.

[0009] Preferably, a plurality of anti-slip pads are provided at the bottom of the shell.

[0010] The present invention realizes a knife sharpener with novel and simple structure, which has the function of adapting to the blade and automatically adjusting the sharpening angle, tailors the blade into a suitable sharpening angle, has high flexibility, retains the blade's own angle, ensures the use effect of the blade, has a very wide range of applications, and has strong versatility. The positioning column structure has a dual function, one object has multiple uses, and the structural design is ingenious. It effectively simplifies the product structure, simplifies the processing and assembly procedures, is easy and quick to assemble, improves production efficiency, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of a three-dimensional structure of an embodiment of a knife sharpener of the present invention;

[0012] Figure 2 The second is a schematic diagram of the three-dimensional structure of an embodiment of a knife sharpener of the present invention;

[0013] Figure 3 It is one of the partial structural exploded schematic diagrams of an embodiment of a knife sharpener of the present invention;

[0014] Figure 4 This is a second schematic diagram of partial structural decomposition of an embodiment of a knife sharpener of the present invention.

[0015] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0016] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0017] Reference Figures 1 to 4, an embodiment of a knife sharpener of the present invention is proposed, comprising a shell formed by a first half shell 101 and a second half shell 102, the shell comprising a sharpening portion 104 with a sharpening opening 103, and a handle portion 105 for convenient hand holding, the first half shell 101 and the second half shell 102 are positioned and fixed by a positioning column structure, the positioning column structure comprising a first positioning column 106 located at the upper left end of the sharpening opening 103, a second positioning column 107 located at the upper right end of the sharpening opening 103, a third positioning column 108 located at the lower left end of the sharpening opening 103, and a fourth positioning column 109 located at the lower right end of the sharpening opening 103.

[0018] The knife sharpener also includes a first knife sharpening bracket 110 in a Z shape mounted on the first positioning column 106 and the fourth positioning column 109, a second knife sharpening bracket 111 in a Z shape mounted on the second positioning column 107 and the third positioning column 108, a first knife sharpening strip 112 capable of performing a knife sharpening operation and disposed on the inner side of the first knife sharpening bracket 110, and a second knife sharpening strip 113 capable of performing a knife sharpening operation and disposed on the inner side of the second knife sharpening bracket 111. The first knife sharpening bracket 110 and the second knife sharpening bracket 111 are cross-distributed to form an X-shaped angle structure capable of clamping a knife blade.

[0019] A first track groove 114 which can move along the first positioning column 106 is provided at the upper end of the first knife sharpening bracket 110, and a first spring cavity which is sleeved outside the fourth positioning column 109 is provided at the lower end of the first knife sharpening bracket 110. A first spring 115 which is sleeved outside the fourth positioning column 109 is provided in the first spring cavity, and two ends of the first spring 115 are respectively fixed to the fourth positioning column 109 and the first knife sharpening bracket 110.

[0020] A second track groove 116 which can move along the second positioning column 107 is provided at the upper end of the second knife sharpening bracket 111, and a second spring cavity 117 which is sleeved outside the third positioning column 108 is provided at the lower end of the second knife sharpening bracket 111. A second spring 118 which is sleeved outside the third positioning column 108 is provided in the second spring cavity 117, and two ends of the second spring 118 are respectively fixed to the third positioning column 108 and the second knife sharpening bracket 111.

[0021] When the blade card is inserted into the X-shaped angle structure, the first sharpening bracket 110 and the second sharpening bracket 111 are opened, and the blade exerts a force on both sides of the first sharpening bracket 110 and the second sharpening bracket 111. The first track groove 114 at the upper end of the first sharpening bracket 110 moves along the first positioning column 106, and the lower end of the first sharpening bracket 110 moves and exerts a force on the first spring 115 to shrink the first spring 115. The first spring 115 in the shrinking state has a restoring force on the first sharpening bracket 110 so that the first sharpening strip 115 inside the first sharpening bracket 110 12 is tightly clamped on the side of the blade so that the sharpener adapts to the blade and automatically adjusts the sharpening angle. At the same time, the second track groove 116 at the upper end of the second sharpening bracket 111 moves along the second positioning column 107, and the lower end of the second sharpening bracket 111 moves and applies force to the second spring 118 so that the second spring 118 contracts. The second spring 118 in the contracted state has a restoring force on the second sharpening bracket 111 so that the second sharpening strip 113 on the inner side of the second sharpening bracket 111 is tightly clamped on the side of the blade so that the sharpener adapts to the blade and automatically adjusts the sharpening angle. Such a structure is novel and simple. The contraction and restoring force of the spring is used to make the sharpening strips tightly clamped on the two sides of the blade. It is suitable for blades of any angle, and is sharpened according to the angle of the blade itself. It has the function of adapting to the blade and automatically adjusting the sharpening angle. The blade is tailored to a suitable sharpening angle, and has high flexibility. The blade retains its own angle after sharpening, which will not affect the use effect of the blade. It is suitable for the sharpening of all blades, and has a very wide range of applications and strong versatility. The sharpener can have the above functions through a simple structural design, and has strong creativity and practicality. In addition, the positioning column structure has a dual role, which not only plays a positioning and splicing role for the first half shell 101 and the second half shell 102, but also plays a positioning and fixing role for the sharpening bracket. One thing has multiple uses, and the structural design is ingenious, which effectively simplifies the product structure, simplifies the processing and assembly process, improves production efficiency, and reduces production costs.

[0022] The first knife sharpening bracket 110 and the first knife sharpening strip 112, as well as the second knife sharpening bracket 111 and the second knife sharpening strip 113 are all fixed by snapping together. The first knife sharpening bracket 110 is provided with a first slot on the inner side thereof which is adapted to and snapped with the first knife sharpening strip 112, and the second knife sharpening bracket 111 is provided with a second slot on the inner side thereof which is adapted to and snapped with the second knife sharpening strip 113. The assembly is simple and quick, and the assembly and processing efficiency is effectively improved.

[0023] A first spring slot 115 is provided at the first spring cavity of the first sharpening bracket 110 , and a second spring slot 119 is provided at the second spring cavity 117 of the second sharpening bracket 111 , and a second spring slot 119 is provided at the second spring cavity 117 of the second sharpening bracket 111 .

[0024] The first half shell 101 and the second half shell 102 are snap-fitted and fixed by a snap-fit ​​structure. The snap-fit ​​structure includes a plurality of snap-fit ​​seats 120 provided on the first half shell 101 and a plurality of clamping blocks 121 provided on the second half shell 102 and snap-fitted and fixed with the snap-fit ​​seats 120. The assembly of the first half shell 101 and the second half shell 102 is simple and quick, which effectively improves the assembly and processing efficiency.

[0025] A plurality of anti-skid pads 122 are disposed at the bottom of the housing.

[0026] The present invention realizes a knife sharpener with novel and simple structure, which has the function of adapting to the blade and automatically adjusting the sharpening angle, tailors the blade into a suitable sharpening angle, has high flexibility, retains the blade's own angle, ensures the use effect of the blade, has a very wide range of applications, and has strong versatility. The positioning column structure has a dual function, one object has multiple uses, and the structural design is ingenious. It effectively simplifies the product structure, simplifies the processing and assembly procedures, is easy and quick to assemble, improves production efficiency, and reduces production costs.

[0027] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A knife sharpener, characterized in that: The housing comprises a first half shell and a second half shell, the housing comprises a sharpening portion with a sharpening opening and a handle portion for convenient handholding, the first half shell and the second half shell are positioned and fixed by a positioning column structure, the positioning column structure comprises a first positioning column located at the upper left end of the sharpening opening, a second positioning column located at the upper right end of the sharpening opening, a third positioning column located at the lower left end of the sharpening opening, and a fourth positioning column located at the lower right end of the sharpening opening; The knife sharpener also includes a first knife sharpening bracket in a Z shape and sleeved on the first positioning column and the fourth positioning column, a second knife sharpening bracket in a Z shape and sleeved on the second positioning column and the third positioning column, a first knife sharpening strip that can be used for knife sharpening and is arranged on the inner side of the first knife sharpening bracket, and a second knife sharpening strip that can be used for knife sharpening and is arranged on the inner side of the second knife sharpening bracket. The first knife sharpening bracket and the second knife sharpening bracket are cross-distributed to form an X-shaped angle structure that can clamp the blade. The first knife sharpening bracket has a first track groove at the upper end thereof which can move along the first positioning column, and a first spring cavity which is sleeved outside the fourth positioning column is provided at the lower end thereof, and a first spring which is sleeved outside the fourth positioning column is provided in the first spring cavity, and two ends of the first spring are respectively fixed to the fourth positioning column and the first knife sharpening bracket; The upper end of the second knife sharpening bracket is provided with a second track groove that can move along the second positioning column, the lower end of the second knife sharpening bracket is provided with a second spring cavity sleeved outside the third positioning column, the second spring cavity is provided with a second spring sleeved outside the third positioning column, and the two ends of the second spring are respectively fixed to the third positioning column and the second knife sharpening bracket; When the blade card is inserted into the X-shaped angle structure, the first sharpening bracket and the second sharpening bracket are opened, and the blade exerts a force on the first sharpening bracket and the second sharpening bracket toward both sides. The first track groove at the upper end of the first sharpening bracket moves along the first positioning column, and the lower end of the first sharpening bracket moves and exerts a force on the first spring to cause the first spring to contract. The first spring in the contracted state has a restoring force on the first sharpening bracket so that the first sharpening strip on the inner side of the first sharpening bracket is tightly clamped on the side of the blade, so that the sharpener adapts to the blade and automatically adjusts the sharpening angle. At the same time, the second track groove at the upper end of the second sharpening bracket moves along the second positioning column, and the lower end of the second sharpening bracket moves and exerts a force on the second spring to cause the second spring to contract. The second spring in the contracted state has a restoring force on the second sharpening bracket so that the second sharpening strip on the inner side of the second sharpening bracket is tightly clamped on the side of the blade, so that the sharpener adapts to the blade and automatically adjusts the sharpening angle.

2. A knife sharpener according to claim 1, characterized in that: The first sharpening bracket and the first sharpening strip, as well as the second sharpening bracket and the second sharpening strip are both fixed by snapping together. The first sharpening bracket is provided with a first snapping groove on the inner side thereof, which is adapted and snapped together with the first sharpening strip. The second sharpening bracket is provided with a second snapping groove on the inner side thereof, which is adapted and snapped together with the second sharpening strip.

3. A knife sharpener according to claim 1 or 2, characterized in that: A first spring slot which can be fixedly engaged with the first spring is provided at the first spring cavity of the first knife sharpening bracket, and a second spring slot which can be fixedly engaged with the second spring is provided at the second spring cavity of the second knife sharpening bracket.

4. A knife sharpener according to claim 3, characterized in that: The first half shell and the second half shell are fixed by a snap-fit ​​structure, and the snap-fit ​​structure comprises a plurality of snap-fit ​​seats arranged on the first half shell and a plurality of clamping blocks arranged on the second half shell and capable of being fixed by the snap-fit ​​seats.

5. A knife sharpener according to claim 4, characterized in that: A number of anti-skid pads are arranged at the bottom of the shell.

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