Knife sharpener capable of adjusting knife sharpening angle
By designing a knife sharpener with adjustable sharpening angle and utilizing the adjustment components and the support surface of the outer frame, the problem of the single angle of the traditional whetstone is solved, and rapid adjustment and stable support of the sharpening blade are achieved to meet the personalized needs of users.
Patent Information
- Application Number
- CN202422360336.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-09-26
AI Technical Summary
Traditional sharpening stones are fixed at a single angle and cannot be adjusted at multiple angles. Diversified structures that increase the number of sharpening blades cannot achieve arbitrary angle adjustment.
A knife sharpener is designed, which includes an outer frame, an adjustment component and a knife sharpener. The angle of the knife sharpener is adjusted by an adjustment knob, an adjustment screw rod, an adjustment slider and an adjustment crank of the adjustment component. The outer frame has upper and lower support surfaces for stable support.
It realizes the rapid angle adjustment of the blade grinding, enhances the flexibility and stability of use, and meets the personalized needs of users.
Smart Images

Figure CN223383307U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a knife sharpener technology, in particular to a technology for conveniently supporting, placing and adjusting the sharpening angle of a knife blade. Background Art
[0002] After using the knife for a period of time, it needs to be sharpened to maintain its sharpness and achieve optimal performance.
[0003] The simplest and most traditional knife sharpener is a whetstone. However, in real-world applications, traditional whetstones are fixed at a single angle and are often inconvenient to use due to the inability to adjust the placement and sharpening angles.
[0004] In order to achieve the function of sharpening knives at multiple angles, the prior art has developed a plurality of sharpening blade structures, that is, providing sharpening blades of various angles, and then allowing users to select the appropriate sharpening angle for application. This method will undoubtedly increase the number of sharpening blades and cannot achieve arbitrary angle adjustment. Utility Model Content
[0005] The main purpose of the utility model is to provide a device capable of adjusting the placement angle of a sharpening blade.
[0006] In order to achieve the above-mentioned purpose, the utility model provides a knife sharpener with adjustable sharpening angle, which is characterized by comprising an outer frame, an adjustment component and a sharpening blade;
[0007] The outer frame has an upper supporting surface and a lower supporting surface;
[0008] The adjustment assembly comprises an adjustment knob, an adjustment screw, an adjustment slider and an adjustment crank. The adjustment assembly is arranged between the upper support surface and the lower support surface. The adjustment knob is fixedly arranged at one end of the adjustment screw. The adjustment slider is arranged on the adjustment screw. The adjustment slider is hinged to the inner end of the crank.
[0009] The grinding blade is rotatably arranged on the first side surface of the outer frame, and the outer end of the crank is hinged to the inner side of the grinding blade.
[0010] The above solution has the following advantages: the blade sharpening device can be quickly adjusted to a suitable angle by adjusting the adjustment assembly, so that the user can choose the appropriate angle for sharpening according to their own habits or the characteristics of the blade. In addition, the outer frame can be placed on a table to form a stable support through the upper and lower support surfaces. The upper and lower support surfaces are convenient to use, and the user can choose the appropriate surface for placement according to their habits.
[0011] Preferably, the upper support surface has upper support pads, which are divided into two groups; the lower support surface has lower support pads, which are divided into two groups, and both the upper support pads and the lower support pads can be supported on the ground.
[0012] The beneficial effects of the above solution are: the support pad can provide stable placement and anti-slip effect, making it more stable during use.
[0013] Preferably, the adjustment knob is arranged on the second side surface of the outer frame, and the second side surface of the outer frame is provided with an adjustment indication scale.
[0014] Preferably, the grinding blade is fixedly embedded in a plastic frame, one side of the plastic frame has a rotating portion, the rotating portion is rotatably matched with a fixing rod, and the fixing rod is provided on the first side surface.
[0015] Preferably, the outer frame has an upper supporting frame and a lower supporting frame that are engaged with each other, and the grinding blade is arranged on a first side surface of the upper supporting frame.
[0016] Preferably, the adjusting slider has a first mounting pair, the inner end of the adjusting crank is hingedly provided on the first mounting pair, and the inner side of the plastic frame has a second mounting pair, the outer end of the adjusting crank is hingedly provided on the second mounting pair.
[0017] Preferably, an installation limit frame is provided inside the outer frame, and the adjustment slider is slidably provided in a sliding limit channel of the installation limit frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0019] Figure 1 It is a general schematic diagram of the first perspective of the present invention;
[0020] Figure 2 It is a general schematic diagram of the second viewing angle of the present utility model;
[0021] Figure 3 This is a top view of the utility model without the upper support frame;
[0022] Figure 4 This is a side view of the present invention without the upper support frame;
[0023] Figure 5 This is a diagram showing the relationship between the adjustment knob, adjustment assembly and grinding blade of the utility model;
[0024] Figure 6 It is a cross-sectional schematic diagram of the utility model.
[0025] Explanation of the accompanying drawings: 1-outer frame; 11-upper supporting surface; 12-lower supporting surface; 13-upper supporting pad; 14-lower supporting pad; 15-first side; 16-second side; 17-upper supporting frame; 18-lower supporting frame; 19-installation limit frame; 2-adjustment assembly; 21-adjustment knob; 22-adjustment screw; 23-adjustment slider; 24-adjustment crank; 25-plastic frame; 251-rotating part; 252-fixing rod; 26-first mounting pair; 27-second mounting pair; 3-grinding blade; 191-sliding limit channel. DETAILED DESCRIPTION
[0026] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0027] Example 1:
[0028] like Figures 1 to 6 As shown, the utility model provides a knife sharpener with adjustable knife sharpening angle, which includes an outer frame 1, an adjustment component 2 and a sharpening blade 3;
[0029] The outer frame 1 has an upper support surface 11 and a lower support surface 12;
[0030] The adjustment assembly 2 comprises an adjustment knob 21, an adjustment screw 22, an adjustment slider 23 and an adjustment crank 24. The adjustment assembly 2 is arranged between the upper support surface 11 and the lower support surface 12. The adjustment knob 21 is fixedly arranged at one end of the adjustment screw 22. The adjustment slider 23 is arranged on the adjustment screw 22. The adjustment slider 23 is hinged to the inner end of the adjustment crank 24.
[0031] The grinding blade 3 is rotatably disposed on the first side surface 15 of the outer frame 1 , and the outer end of the adjusting crank 24 is hinged to the inner side of the grinding blade 3 .
[0032] By adjusting the adjustment component, the sharpening blade 3 can be quickly adjusted to a suitable angle position, so that the user can choose a suitable angle for sharpening according to their own habits or the characteristics of the blade. In addition, the outer frame 1 can be placed on a table to form a stable support through the upper support surface 11 and the lower support surface 12, and the upper and lower support surfaces are convenient to use, and the user can choose a suitable surface for placement according to their habits.
[0033] Example 2:
[0034] Based on Example 1, in this embodiment, the upper support surface 11 has upper support pads 13, and the upper support pads 13 are divided into two groups; the lower support surface 12 has lower support pads 14, and the lower support pads 14 are divided into two groups. Both the upper support pads 13 and the lower support pads 14 can be supported on the ground.
[0035] Preferably, the adjustment knob 21 is provided on the second side surface 16 of the outer frame 1 , and the second side surface 16 of the outer frame 1 has an adjustment indication scale.
[0036] Preferably, the grinding blade 3 is fixedly embedded in a plastic frame 25 . A rotating portion 251 is provided on one side of the plastic frame 25 . The rotating portion 251 is rotatably engaged with a fixing rod 252 . The fixing rod 252 is provided on the first side surface 15 .
[0037] Preferably, the outer frame 1 has an upper supporting frame 17 and a lower supporting frame 18 that are engaged with each other, and the grinding blade 3 is arranged on the first side surface 15 of the upper supporting frame 17 .
[0038] Preferably, the adjusting slider 23 has a first mounting pair 26 , on which the inner end of the adjusting crank 24 is hingedly provided. The inner side of the plastic frame 25 has a second mounting pair 27 , on which the outer end of the adjusting crank 24 is hingedly provided.
[0039] Preferably, an installation limit frame 19 is provided inside the outer frame 1 , and the adjustment slider 23 is slidably provided in a sliding limit channel 191 of the installation limit frame 19 .
[0040] When the angle of the blade 3 needs to be adjusted, the adjustment knob 21 is manually rotated, the adjustment screw 22 rotates, and the adjustment slider 23 moves along the sliding limit channel 191, driving the adjustment crank 24 to move back and forth in the length direction, thereby causing the blade 3 to rotate relative to the fixed rod to achieve angle adjustment. In addition, the upper support surface 11 or the lower support surface 12 can be placed on a table for work, and the user can choose the right one according to their habits or the type of tool to be sharpened, which is very convenient to use.
[0041] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
Claims
1. A knife sharpener with adjustable sharpening angle, characterized in that: include: The outer frame (1) has an upper supporting surface (11) and a lower supporting surface (12); An adjusting assembly (2) comprises an adjusting knob (21), an adjusting screw (22), an adjusting slider (23) and an adjusting crank (24); the adjusting assembly (2) is arranged between the upper supporting surface (11) and the lower supporting surface (12); the adjusting knob (21) is fixedly arranged on one end of the adjusting screw (22); the adjusting slider (23) is arranged on the adjusting screw (22); and the adjusting slider (23) is hinged to the inner end of the adjusting crank (24); The grinding blade (3) is rotatably arranged on the first side surface (15) of the outer frame (1), and the outer end of the adjusting crank (24) is hinged to the inner side of the grinding blade (3).
2. The knife sharpener with adjustable sharpening angle according to claim 1, characterized in that: The upper support surface (11) has upper support pads (13), and the upper support pads (13) are in two groups; the lower support surface (12) has lower support pads (14), and the lower support pads (14) are in two groups. Both the upper support pads (13) and the lower support pads (14) can be supported on the ground.
3. The knife sharpener with adjustable sharpening angle according to claim 1, characterized in that: The adjustment knob (21) is arranged on the second side surface (16) of the outer frame (1), and the second side surface (16) of the outer frame (1) is provided with an adjustment indication scale.
4. The knife sharpener with adjustable sharpening angle according to claim 1, characterized in that: The grinding blade (3) is fixedly embedded in a plastic frame (25). One side of the plastic frame (25) is provided with a rotating portion (251). The rotating portion (251) is rotatably matched with a fixing rod (252). The fixing rod (252) is arranged on the first side surface (15).
5. The knife sharpener with adjustable sharpening angle according to claim 4, characterized in that: The outer frame (1) comprises an upper supporting frame (17) and a lower supporting frame (18) which are engaged with each other, and the grinding blade (3) is arranged on the first side surface (15) of the upper supporting frame (17).
6. The knife sharpener with adjustable sharpening angle according to claim 5, characterized in that: The adjusting slider (23) has a first mounting pair (26), and the inner end of the adjusting crank (24) is hingedly arranged on the first mounting pair (26). The inner side of the plastic frame (25) has a second mounting pair (27), and the outer end of the adjusting crank (24) is hingedly arranged on the second mounting pair (27).
7. The knife sharpener with adjustable sharpening angle according to claim 6, characterized in that: An installation limit frame (19) is provided inside the outer frame (1), and the adjustment slider (23) is slidably provided in a sliding limit channel of the installation limit frame (19).