Cross type knife sharpener

By using a cross-type sharpener design, the combined structure of a fixed shaft and an elastic body enables simultaneous friction and depth adjustment on both sides of the blade, solving the problem that existing sharpeners cannot sharpen both sides of the blade at the same time, thus improving sharpening efficiency and effectiveness.

CN223989404UActive Publication Date: 2026-03-13TAIDEA TECH ZHONGSHAN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing sharpeners cannot achieve simultaneous friction on both sides of the blade and cannot quickly adjust the sharpening depth.

Method used

A cross-type sharpener was designed, which adopts a combination structure of a fixed shaft, a first sharpening block, a second sharpening block, a first elastic body, and a second elastic body. The elastic deformation of the elastic body is used to achieve simultaneous friction on both sides of the blade, and the sharpening depth is adjusted by applying external force.

Benefits of technology

It achieves simultaneous friction on both sides of the blade, improving sharpening efficiency and allowing for quick adjustment of the sharpening depth as needed, thus enhancing the sharpening effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223989404U_ABST
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Abstract

The utility model relates to a cross type knife sharpener which comprises a fixing shaft, a first knife sharpening block, a second knife sharpening block, a first elastic body and a second elastic body. The first sharpening block is rotatably connected to the fixed shaft; the first elastic body is connected with the first sharpening block so as to control the first elastic body to be folded; the second sharpening block is rotatably connected to the fixed shaft; the second elastic body is connected with the second sharpening block so as to control the second elastic body to be folded. The first sharpening block, the second sharpening block, the first elastic body and the second elastic body are used in cooperation, and the first guide hole and the second guide hole in the fixing frame are matched with the first sharpening block and the second sharpening block, so that the effect of simultaneous friction of the two sides of the blade is achieved, time and labor are saved, and convenience and rapidness are achieved.
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Description

Technical Field

[0001] This utility model relates to a knife sharpening tool, specifically to a cross-type up-and-down motion sharpening device. Background Technology

[0002] A knife sharpener is a tool used to sharpen knives. It can effectively improve the sharpness of knives and extend their lifespan. There are many types of knife sharpeners, mainly including manual sharpeners and electric sharpeners.

[0003] To address different usage scenarios, various types of sharpening tools have been invented in the prior art. However, in the prior art, on the one hand, there is no structure that allows for sharpening both blades simultaneously. That is, when sharpening a blade in a sharpener, both blades usually need to rub alternately, making it impossible to achieve the goal of rubbing both blades simultaneously in the same action. On the other hand, the friction depth cannot be varied at any time during sharpening, meaning that users cannot quickly adjust it according to the friction area or depth of the blade. Summary of the Invention

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and thus provide a friction device that can achieve simultaneous friction on both sides of the blade.

[0005] To achieve the above objectives, this utility model provides a cross-type sharpener, including a fixed shaft, a first sharpening block, a second sharpening block, a first elastic body, and a second elastic body;

[0006] The first sharpening block is rotatably connected to the fixed shaft;

[0007] The first elastic body is connected to the first grinding block to control the closing of the first elastic body;

[0008] The second sharpening block is rotatably connected to the fixed shaft;

[0009] The second elastomer is connected to the second grinding block to control the closing of the second elastomer.

[0010] Preferably, the first elastic body and the second elastic body are spring structures or elastic rods.

[0011] Preferably, the first and second grinding blocks have a main body portion, and the main body portion has a hardened grinding block at the inner position of the intersection.

[0012] Preferably, the bottom positions of the first and second grinding blocks are located on the fixed shaft.

[0013] Preferably, it further includes a fixed base, on which a fixed frame is provided, and on which the fixed shaft is provided, and on which the fixed shaft has a fixed block, the fixed block being used to fix the bottoms of the first elastic body and the second elastic body, the top of the first elastic body being connected to the first grinding block, and the top of the second elastic body being connected to the second grinding block.

[0014] Preferably, the fixing frame has a first guide hole and a second guide hole, the first grinding block and the second grinding block are generally L-shaped, the first protrusion on the top of the first grinding block cooperates with the first guide hole, and the second protrusion on the top of the second grinding block cooperates with the second guide hole.

[0015] Preferably, the outer ends of the first protrusion and the second protrusion have fixing caps.

[0016] Preferably, the fixed shaft is a bolt structure, which is rotatably mounted on the fixed frame.

[0017] Preferably, the mounting bracket has a gripping opening.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. The combined use of the first sharpening block, the second sharpening block, the first elastic body, and the second elastic body, as well as the cooperation between the first guide hole and the second guide hole on the fixing frame and the first sharpening block and the second sharpening block, achieves the effect of simultaneous friction on both sides of the blade, saving time, effort, and making it convenient and quick;

[0020] 2. When sharpening the knife, apply different forces to the blade as needed so that the blade presses against the first and second sharpening blocks that are set up in a cross pattern. The blade penetrates to different depths, thus adjusting the sharpening area accordingly. The deeper the blade goes, the deeper it penetrates into the two first and second sharpening blocks, resulting in a larger sharpening effect. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a front view angle diagram of a cross-type knife sharpener according to this utility model;

[0023] Figure 2 This utility model relates to a cross-type knife sharpener. Figure 1Another perspective illustration;

[0024] Figure 3 This is a schematic diagram of a cross-type knife sharpener according to this utility model from another angle;

[0025] Figure 4 This is a schematic diagram of a cross-type knife sharpener of this utility model with some components omitted;

[0026] Explanation of reference numerals in the attached figures:

[0027] 10-Fixed shaft; 11-Fixed block;

[0028] 20-First sharpening block; 21-First protrusion block; 22-Hard sharpening block; 23-Fixing cap; 30-Second sharpening block; 31-Second protrusion block;

[0029] 40 - First elastic body; 50 - Second elastic body; 60 - Fixed base;

[0030] 70-Fixed bracket; 71-First guide hole; 72-Second guide hole; 73-Grip opening. Detailed Implementation

[0031] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] First embodiment:

[0033] like Figures 1 to 4 As shown, the present invention provides a cross-type sharpener, including a fixed shaft 10, a first sharpening block 20, a second sharpening block 30, a first elastic body 40, and a second elastic body 50;

[0034] The first sharpening block 20 is rotatably connected to the fixed shaft 10;

[0035] The first elastic body 40 is connected to the first grinding block 20 to control the first elastic body 40 to close;

[0036] The second sharpening block 30 is rotatably connected to the fixed shaft 10;

[0037] The second elastic body 50 is connected to the second grinding block 30 to control the closing of the second elastic body 50.

[0038] Preferably, the first elastic body 40 and the second elastic body 50 are spring structures or elastic rods, and the elastic deformation of the spring structure or elastic rod is used to control the automatic closing of the first grinding block 20 and the second grinding block 30.

[0039] In practical applications, the blade to be sharpened is pressed and placed between the first sharpening block 20 and the second sharpening block 30, and external force is applied to press it down, causing the two sides of the blade to contact the first sharpening block 20 and the second sharpening block 30 on both sides. After being pressed by the blade, the first sharpening block 20 and the second sharpening block 30 move to both sides and are pulled inward by the first elastic body 40 and the second elastic body 50 respectively, forming elastic potential energy. When the blade is removed, it automatically drives the first sharpening block 20 and the second sharpening block 30 to move inward and tighten. In this way, a clamping force is automatically formed on both sides of the blade during sharpening, resulting in a better sharpening effect.

[0040] Preferably, the first sharpening block 20 and the second sharpening block 30 have a main body portion, and a hardened sharpening block 22 is located on the inner side of the main body portion near the intersection. The hardened sharpening block 22 is used to cut the blade edge during friction. The hardened sharpening block 22 is the effective position for sharpening. Sharpening can begin when the blade presses against the hardened sharpening block 22. During sharpening, the user applies external force to make the blade move horizontally.

[0041] Preferably, the bottom positions of the first grinding block 20 and the second grinding block 30 are located on the fixed shaft 10, that is, the bottoms of the two are rotatably connected to the fixed shaft 10.

[0042] Second embodiment:

[0043] In this embodiment, a fixed base 60 is further included, on which a fixed frame 70 is mounted. A fixed shaft 10 is mounted on the fixed frame 70, and a fixed block 11 is fixedly mounted on the fixed shaft 10. The bottoms of the first elastic body 40 and the second elastic body 50 are fixedly connected to the fixed block 11. The top of the first elastic body 40 is connected to the first grinding block 20, and the top of the second elastic body 50 is connected to the second grinding block 30. During friction, the first elastic body 40 and the second elastic body 50 undergo elastic deformation. After the blade is removed, the first grinding block 20 and the second grinding block 30 automatically close together.

[0044] Preferably, the fixing frame 70 has a first guide hole 71 and a second guide hole 72. The first grinding block 20 and the second grinding block 30 are generally L-shaped. The first protrusion 21 on the top of the first grinding block 20 cooperates with the first guide hole 71; the second protrusion 31 on the top of the second grinding block 30 cooperates with the second guide hole 72. When the first grinding block 20 and the second grinding block 30 automatically close, the first protrusion 21 and the second protrusion 31 move within the first guide hole 71 and the second guide hole 72.

[0045] Preferably, the outer ends of the first protrusion 21 and the second protrusion 31 have retaining caps 23. The retaining caps 23 are detachably mounted on the protrusions, thus preventing them from detaching from the first guide hole 71 or the second guide hole 72.

[0046] Preferably, the fixed shaft 10 is a bolt structure, which is rotatably mounted on the fixed frame 70. The fixed shaft 10 can also be a fixedly installed rod structure.

[0047] Preferably, the fixing frame 70 has a gripping opening 73, which provides a more stable grip when the hand is held during friction.

[0048] Work process:

[0049] When rubbing the blade, hold the grip opening 73 with your hand, and place the blade between the first sharpening block 20 and the second sharpening block 30. The first protrusion 21 and the second protrusion 31 move in cooperation within the first guide hole 71 and the second guide hole 72, respectively, moving from the middle position of the fixed frame 70 to both sides. When the blade is pulled out, the first protrusion 21 and the second protrusion 31 move back to the middle position of the fixed frame 70 within the first guide hole 71 and the second guide hole 72, respectively.

[0050] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A cross-type sharpener characterized by, The utility model relates to a knife sharpener, which comprises: a fixed shaft (10); a first sharpening block (20) rotatably connected to the fixed shaft (10); a first elastic body (40) connected to the first sharpening block (20) for controlling the folding of the first elastic body (40); a second sharpening block (30) rotatably connected to the fixed shaft (10); a second elastic body (50) connected to the second sharpening block (30) for controlling the folding of the second elastic body (50).

2. The cross-honing sharpener of claim 1, wherein, The first elastic body (40) and the second elastic body (50) are in the form of a spring structure or an elastic rod.

3. The cross-type knife sharpener of claim 1, wherein, The first sharpening block (20) and the second sharpening block (30) have a main body portion, and the main body portion has a hard sharpening block (22) at the intersecting inner side position.

4. The cross-type knife sharpener of claim 1, wherein, The bottom position of the first sharpening block (20) and the second sharpening block (30) is arranged on the fixed shaft (10).

5. The cross-type knife sharpener of claim 1, wherein, The utility model further comprises a fixed base (60), wherein the fixed base (60) is provided with a fixed frame (70), the fixed frame (70) is provided with the fixed shaft (10), the fixed shaft (10) is provided with a fixed block (11), the fixed block (11) is used for fixedly connecting the bottom of the first elastic body (40) and the second elastic body (50), the top of the first elastic body (40) is connected to the first sharpening block (20), and the top of the second elastic body (50) is connected to the second sharpening block (30).

6. The cross-type knife sharpener of claim 5, wherein, The fixed frame (70) is provided with a first guide hole (71) and a second guide hole (72), the first sharpening block (20) and the second sharpening block (30) are in the form of an L shape as a whole, the top first protruding block (21) of the first sharpening block (20) is matched with the first guide hole (71), and the top second protruding block (31) of the second sharpening block (30) is matched with the second guide hole (72).

7. The cross-type knife sharpener of claim 5 wherein, The outer end of the first protruding block (21) and the second protruding block (31) is provided with a fixed cap (23).

8. The cross-type knife sharpener of claim 5 wherein, The fixed shaft (10) is in the form of a bolt structure, and the bolt structure is rotatably arranged on the fixed frame (70).

9. A cross-honing sharpener according to any one of claims 5 to 8, wherein, The fixed frame (70) is provided with a holding opening (73).