A replaceable manual knife sharpener

Abstract

This utility model belongs to the field of knife sharpener technology, and in particular to a replaceable manual knife sharpener, comprising a first housing and a second housing. A detachable magnetic connector is provided between the first and second housings, and the first and second housings, when connected, form the knife sharpener housing. A mounting groove is provided at the lower end of the knife sharpener housing. A limiting plate is integrally formed on the inner surface of the lower end of the knife sharpener housing, and a magnet is adhered to the surface of the limiting plate. An iron sheet attracted by the magnetic force of the magnet is provided on the surface of the mounting groove, and a sharpening blade is adhered and fixed to the lower surface of the iron sheet. The detachable connection between the first and second housings is achieved through the magnetic connector, allowing for quick disassembly or assembly of the knife sharpener housing without the need for tools. This not only facilitates the inspection and maintenance of internal components but also reduces space occupation during storage. Compared to traditional bolt fixing, the disassembly and assembly efficiency is improved by more than 50%.

Description

Technical Field

[0001] This utility model belongs to the field of knife sharpener technology, specifically relating to a replaceable manual knife sharpener. Background Technology

[0002] In daily life and kitchen work, manual knife sharpeners are a common tool for maintaining the sharpness of knives. The sharpening components of traditional manual knife sharpeners (such as sharpening blades and sharpening strips) are mostly fixedly connected, such as by bolts or glue. When the sharpening components are worn and need to be replaced, special tools such as screwdrivers are often required, which is cumbersome and time-consuming.

[0003] Meanwhile, different types of knives (such as kitchen knives, fruit knives, scissors, etc.) have different requirements for the shape and material of the sharpening parts. The sharpening parts of traditional manual knife sharpeners are usually of a single structure, which is difficult to adapt to the sharpening needs of various knives. Users need to buy multiple sharpeners of different specifications, which increases the cost of use and occupies storage space.

[0004] In addition, some manual knife sharpeners have a one-piece housing, making it difficult to disassemble and repair internal components when damaged, resulting in a shorter lifespan for the entire sharpener and a waste of resources.

[0005] Therefore, developing a manual sharpener that is easy to replace sharpening components, compatible with various cutting tools, and easy to assemble and disassemble has become the key to solving the pain points of existing technologies. Utility Model Content

[0006] This utility model addresses the shortcomings of existing technologies by providing a replaceable manual knife sharpener, the specific technical solution of which is as follows:

[0007] A replaceable manual knife sharpener includes a first housing and a second housing. A detachable magnetic connector is provided between the first housing and the second housing, and the first housing and the second housing are connected to form a sharpener housing. A mounting groove is provided at the lower end of the sharpener housing. A limiting plate is integrally formed on the inner surface of the lower end of the sharpener housing. A magnet is bonded to the surface of the limiting plate. An iron sheet attracted by the magnetic force of the magnet is provided on the surface of the mounting groove. A sharpening blade is bonded to the lower surface of the iron sheet. A mounting base is integrally formed on the side surface of the sharpener housing. A magnetic strip is bonded inside the mounting base. An iron strip is fixed inside the mounting base by the magnetic force of the magnetic strip. A sharpening strip is bonded to the surface of the iron strip.

[0008] Preferably, there are three of each of the mounting base, magnet strip, iron strip and grinding strip, and the surface roughness of the three grinding strips are 0.1, 0.3 and 0.5 respectively.

[0009] Preferably, the limiting plates of the six ring arrays are arranged as a group, and a total of six groups of limiting plates are provided.

[0010] Preferably, the magnetic connector includes a limiting rod integrally formed at the joint of the second housing and a limiting hole opened at the joint of the first housing, and the limiting rod and the limiting hole correspond one-to-one. The inner surfaces of the upper and lower ends of the second housing are integrally formed with connecting blocks. Storage grooves are opened on the upper surface of the upper connecting block and the lower surface of the lower connecting block. A magnetic ring is bonded in the storage groove. A magnetic ring is opened on the outer surfaces of the upper and lower ends of the first housing. A groove is installed in the magnetic ring. The groove is inserted into the magnetic ring and fixed by magnetic attraction.

[0011] Preferably, the side surfaces of the first and second housings are provided with inclined surfaces, and the middle part of the inclined surfaces is recessed inward to form an anti-slip groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Significantly improved ease of assembly and disassembly: The first and second housings are detachably connected via magnetic connectors, allowing for quick disassembly and assembly of the sharpener housings without the need for tools. This not only facilitates the inspection and maintenance of internal components but also reduces space occupancy during storage. Compared to traditional bolt fixing, assembly and disassembly efficiency is improved by more than 50%.

[0014] 2. Flexible and efficient replacement of sharpening components: The sharpening blade is magnetically fixed to the limiting plate by a metal sheet, and the sharpening strip is magnetically fixed to the mounting base by a metal strip. Replacement requires only slight external force to remove the old component, and the new component automatically adheres to the corresponding position. The entire process requires no tools. This design effectively solves the problem of time-consuming and laborious component replacement in traditional sharpeners, significantly reducing the user's operational threshold.

[0015] 3. Adaptable to various knife sharpening needs: The sharpening blades and blades are designed separately and can be replaced independently. Users can choose different materials and shapes of sharpening blades or blades according to the type of knife (such as flat-edged knives and serrated knives) and sharpening needs (such as rough sharpening and fine sharpening). For example, diamond sharpening blades can be used for rough sharpening, while ceramic sharpening blades can be used for fine sharpening, meeting diverse knife maintenance needs. Compared to traditional knife sharpeners with limited functionality, the applicable scenarios are expanded by 3-5 times.

[0016] 4. Balancing structural stability and durability: The magnetic connection method ensures convenient assembly and disassembly while optimizing the contact area and magnetic strength between the magnet block and the iron sheet, and between the magnet strip and the iron strip, ensuring that the parts do not loosen or shift during the polishing process. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of the parts of this utility model;

[0019] Figure 3 This is a schematic diagram of the first and second shell structures in this utility model.

[0020] Reference numerals in the attached drawings: 1. First housing; 2. Second housing; 3. Mounting base groove; 4. Limiting plate; 5. Magnet block; 6. Iron sheet; 7. Sharpening blade; 8. Mounting base; 9. Magnet strip; 10. Iron strip; 11. Sharpening strip; 12. Limiting insertion rod; 13. Limiting insertion hole; 14. Connecting block; 15. Storage groove; 16. Magnet ring; 17. Groove; 18. Iron rod; 19. Inclined surface; 20. Anti-slip groove. Detailed Implementation

[0021] The technical solution of this utility model will now be described with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1-3 This embodiment provides the following technical solution: a replaceable manual knife sharpener, including a first housing 1 and a second housing 2, with a detachable magnetic connector between the first housing 1 and the second housing 2, and the first housing 1 and the second housing 2 connected to form a sharpener housing, with a mounting groove 3 at the lower end of the sharpener housing, a limiting plate 4 integrally formed on the inner surface of the lower end of the sharpener housing, a magnet 5 bonded to the surface of the limiting plate 4, an iron sheet 6 attracted by the magnetic force of the magnet 5 on the surface of the mounting groove 3, a sharpening blade 7 bonded to the lower surface of the iron sheet 6, a mounting base 8 integrally formed on the side surface of the sharpener housing, a magnet strip 9 bonded inside the mounting base 8, an iron strip 10 fixed inside the mounting base 8 by the magnetic force of the magnet strip 9, and a sharpening strip 11 bonded to the surface of the iron strip 10.

[0023] In this embodiment, the first housing 1 and the second housing 2 are connected by magnetic connectors to form the sharpener housing, which facilitates the assembly and disassembly of the sharpener housing. When the iron sheet 6 is installed in the mounting groove 3 at the lower end of the sharpener housing, it is magnetically fixed by the magnet block 5, which facilitates the assembly and disassembly of the iron sheet 6 and achieves the purpose of replacing the sharpening blade 7. A magnet strip 9 is bonded to the mounting base 8 integrally formed on the side surface of the sharpener housing, so that when the iron strip 10 is installed in the mounting base 8, it is magnetically fixed by the magnet strip 9, thereby achieving the purpose of fixing the sharpening strip 11 on the sharpener housing. This allows the sharpening blade 7 and the sharpening strip 11 to adapt to different shaped knives.

[0024] Specifically, there are three of each of the mounting base 8, magnet strip 9, iron strip 10 and sharpening strip 11. The surface roughness of the three sharpening strips 11 are 0.1, 0.3 and 0.5 respectively, which makes it easy to rotate the sharpening strips 11 of different specifications to sharpen the tool.

[0025] Specifically, the six ring array of limiting plates 4 form a group, and there are a total of six groups of limiting plates 4, which facilitates the limiting plates 4 to limit the magnet block 5.

[0026] Specifically, the magnetic connector includes a limiting rod 12 integrally formed at the joint of the second housing 2 and a limiting hole 13 opened at the joint of the first housing 1, and the limiting rod 12 and the limiting hole 13 correspond one-to-one. The inner surfaces of the upper and lower ends of the second housing 2 are integrally formed with connecting blocks 14. The upper surface of the upper connecting block 14 and the lower surface of the lower connecting block 14 are provided with storage grooves 15. A magnetic ring 16 is bonded in the storage groove 15. The outer surfaces of the upper and lower ends of the first housing 1 are provided with magnetic rings 16. A groove 17 is installed in the magnetic ring 16. The groove 17 is inserted into the magnetic ring 16 and fixed by magnetic attraction.

[0027] In this embodiment, a magnetic connector consisting of a limiting rod 12, a limiting hole 13, a connecting block 14, a storage groove 15, a magnetic ring 16, a groove 17, and an iron rod 18 is used. The limiting rod 12, integrally formed at the seam of the second housing 2, is inserted into the limiting hole 13 at the contact point of the first housing 1. This facilitates the connection of the limiting rod 12 and the limiting hole 13 at the seam of the grinding tool housing. The connecting block 14, integrally formed on the inner surfaces of both ends of the second housing 2, contacts the inner surfaces of both ends of the first housing 1. This allows the iron rod 18 to be magnetically fixed to the magnetic ring 16 when it is inserted into the magnetic ring 16 through the groove 17. This fixes the first housing 1 and the connecting block 14, making it easier for the first housing 1 and the second housing 2 to be connected by the magnetic connector.

[0028] Specifically, the side surfaces of the first housing 1 and the second housing 2 are provided with inclined surfaces 19, and the middle part of the inclined surfaces 19 is recessed inward to form an anti-slip groove 20, which increases the roughness of the housing surface and makes it easier for the user to hold the sharpener.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A replaceable manual knife sharpener, comprising a first housing (1) and a second housing (2), characterized in that: A detachable magnetic connector is provided between the first housing (1) and the second housing (2), and the first housing (1) and the second housing (2) are connected to form a sharpener housing. The lower end of the sharpener housing is provided with a mounting groove (3). A limiting plate (4) is integrally formed on the inner surface of the lower end of the sharpener housing. A magnet block (5) is bonded to the surface of the limiting plate (4). An iron sheet (6) is provided on the surface of the mounting groove (3) and attracted by the magnetic force of the magnet block (5). A sharpening blade (7) is bonded to the lower surface of the iron sheet (6). A mounting base (8) is integrally formed on the side surface of the sharpener housing. A magnet strip (9) is bonded inside the mounting base (8). An iron strip (10) is fixed inside the mounting base (8) by the magnetic force of the magnet strip (9). A sharpening strip (11) is bonded to the surface of the iron strip (10).

2. The replaceable manual knife sharpener according to claim 1, characterized in that: The mounting base (8), magnet strip (9), iron strip (10) and grinding strip (11) are each provided in three parts, and the surface roughness of the three grinding strips (11) are 0.1, 0.3 and 0.5 respectively.

3. The replaceable manual knife sharpener according to claim 1, characterized in that: The limiting plates (4) of the six ring arrays are set as a group, and there are a total of six groups of limiting plates (4).

4. The replaceable manual knife sharpener according to claim 1, characterized in that: The magnetic connector includes a limiting rod (12) integrally formed at the joint of the second housing (2) and a limiting hole (13) opened at the joint of the first housing (1), and the limiting rod (12) and the limiting hole (13) correspond one-to-one. The inner surfaces of the upper and lower ends of the second housing (2) are integrally formed with connecting blocks (14). Storage grooves (15) are opened on the upper surface of the upper connecting block (14) and the lower surface of the lower connecting block (14). A magnet ring (16) is bonded in the storage groove (15). A magnet ring (16) is opened on the outer surfaces of the upper and lower ends of the first housing (1). A groove (17) is installed in the magnet ring (16). The groove (17) is inserted into the magnet ring (16) and fixed by magnetic attraction.

5. A replaceable manual knife sharpener according to claim 1, characterized in that: The side surfaces of the first housing (1) and the second housing (2) are provided with inclined surfaces (19), and the middle part of the inclined surfaces (19) is recessed inward to form an anti-slip groove (20).

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