A thickness-adjustable kitchen knife grinding device

Abstract

The utility model provides a kind of thickness adjustable's dinner knife grinding device, including base, guide rail is equipped on it, the top of base is equipped with abrasive disc, sliding platform is set on base along guide rail and slides, clamping assembly is set on sliding platform;Clamping assembly includes fixed part, fixed part includes the plug pin in its two sides, plug pin is slidably connected with sliding platform, the insertion cavity corresponding to plug pin is set on sliding platform, toothed portion is set on plug pin, the ratchet wheel meshing with toothed portion is rotatably set in insertion cavity.The utility model can conveniently adjust the clamping distance between fixed part and sliding platform by the cooperation of plug pin with ratchet wheel with toothed portion, so that different thickness dinner knife blade can be effectively clamped, and the application range is wider.

Description

Technical Field

[0001] This utility model relates to the field of knife sharpening technology, specifically a knife sharpening device with adjustable thickness. Background Technology

[0002] Knives are indispensable tools in the kitchen and daily life, and their sharpness directly affects efficiency and safety. Dinner knives, commonly used in everyday dining, come in many varieties, such as steak knives, butter knives, and fruit knives, each with different blade thicknesses, materials, and cutting angles. Over time, the blade dulls, reducing cutting ability and potentially increasing the risk of accidental slippage due to the need for greater force. Therefore, regularly sharpening dinner knives to restore their sharpness is crucial.

[0003] To simplify operation, various manual or electric fixed-angle sharpeners have emerged. These sharpeners typically have a pre-set grinding groove; the user simply inserts the knife into the groove and pulls it back and forth. However, the width of the grinding groove is usually fixed. For different knives with significant differences in thickness, such as a thicker steak knife and a thinner fruit or butter knife, the fixed groove width may not properly fit and stably hold the blade, causing the blade to wobble during sharpening. This results in the actual sharpening angle deviating from the preset value, affecting the uniformity and consistency of the sharpening effect, and may even damage thinner blades.

[0004] In addition, some existing knife sharpening devices may be designed to handle thicker kitchen knives such as chef's knives and cleavers, and their applicability and sharpening effect are often not ideal for thinner and more varied table knives. Utility Model Content

[0005] This invention aims to overcome the shortcomings of the prior art and provide a knife sharpening device with adjustable thickness. This device can easily adjust the clamping width to accommodate knives of different thicknesses, ensuring that the knife is stably clamped during the sharpening process, thereby improving the accuracy and consistency of sharpening and enhancing the convenience of use for users.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable thickness knife sharpening device includes a base with a guide rail thereon, a sharpening disc on the top of the base, a slide table that slides along the guide rail on the base, and a clamping assembly on the slide table.

[0008] The clamping assembly includes a fixing member, the fixing member including pins located on both sides thereon, the pins being slidably connected to the slide, the slide being provided with an insertion cavity corresponding to the pin, the pins being provided with toothed portions, and a ratchet being rotatably provided in the insertion cavity to mesh with the toothed portions;

[0009] The ratchet includes an outer gear ring that meshes with the toothed portion and a limiting wheel disposed within the outer gear ring. The limiting wheel is rotatably connected to the outer gear ring. The inner wall of the outer gear ring is circumferentially arranged with ratchet teeth. The outer peripheral wall of the limiting wheel is provided with a pawl corresponding to the ratchet teeth, and the pawl can swing in one direction. A square hole is opened in the center of the limiting wheel. A limiting post corresponding to the square hole is fixed on the inner side wall of the insertion cavity.

[0010] A clamping block is provided on the side of the fixing member facing the slide.

[0011] Furthermore, a push spring acting on the limiting wheel is provided in the insertion cavity, and the push spring causes the ratchet to have a tendency to move closer to the limiting post.

[0012] Furthermore, the clamping block has anti-slip texture on the side facing the slide table;

[0013] A return spring is provided between the clamping block and the fixing member, and the return spring causes the clamping block to have a tendency to move away from the fixing member.

[0014] Furthermore, a push rod is slidably provided on the slide table, one end of which passes through the limiting post and abuts against the limiting wheel.

[0015] Furthermore, the base is provided with a push rod that pushes the slide table to move along the guide rail.

[0016] Furthermore, the slide is provided with a hollowed-out groove for supporting the handle of the dinner knife.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention uses a toothed pin that engages with a ratchet to easily adjust the clamping distance between the fixing component and the slide, thereby effectively clamping knives of different thicknesses and making it more widely applicable.

[0019] Meanwhile, the self-locking characteristics of the external gear ring and the limiting wheel ensure that the clamping assembly can stably fix the blade after it is adjusted to the appropriate width, preventing it from shaking during the grinding process and ensuring the accuracy of the grinding angle and the consistency of the grinding effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0022] Figure 2 This is one of the cross-sectional views of the clamping component in one embodiment of the present invention;

[0023] Figure 3 This is a second cross-sectional view of the clamping component in one embodiment of the present invention;

[0024] Figure 4 for Figure 3 Enlarged view of part A.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Base;

[0027] 2. Grinding disc;

[0028] 3. Guide rail;

[0029] 4. Slide;

[0030] 41. Insertion cavity; 42. Limiting post; 43. Push rod; 44. Hollowed-out groove;

[0031] 51. Fasteners;

[0032] 511. Pin; 512. Toothed part

[0033] 52. Ratchet;

[0034] 521, External gear ring; 5211, Racket tooth;

[0035] 522, Limit wheel; 5221, Pawl; 5222, Square hole; 523, Push spring;

[0036] 53. Clamping block; 531. Return spring;

[0037] 6. Push lever. Detailed Implementation

[0038] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0039] It will be understood by those skilled in the art that certain well-known structures and their descriptions may be omitted in the accompanying drawings. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0040] Reference Figures 1 to 4 This invention provides a knife sharpening device with adjustable thickness. The device includes a base 1, a sharpening disc 2 disposed on top of the base 1, and a slide 4 that can slide along a guide rail 3 on the base 1. The sharpening disc 2 can be made of diamond, ceramic, cemented carbide, or other suitable abrasive materials, and is used to sharpen the knife blade. The guide rail 3 ensures that the slide 4 can move smoothly and linearly.

[0041] A clamping assembly 5 is provided on the slide table 4 for clamping the knife blade to be sharpened. The clamping assembly 5 is key to achieving thickness adjustment. It includes a fixing member 51 and a clamping block 53 disposed on the side of the fixing member 51 facing the slide table 4.

[0042] The fixing member 51 has pins 511 on both sides, which can be slidably inserted into the corresponding insertion cavities 41 opened on the slide table 4. Each pin 511 is provided with a toothed portion 512. Inside the insertion cavity 41, a ratchet 52 is rotatably provided, which engages with the toothed portion 512 on the pin 511.

[0043] The ratchet includes an outer gear ring 521 that meshes with the toothed portion and a limiting wheel 522 disposed within the outer gear ring 521. The inner wall of the outer gear ring 521 is circumferentially arranged with ratchet teeth 5211. The outer peripheral wall of the limiting wheel 522 is provided with a pawl 5221 corresponding to the ratchet teeth 5211, and the pawl 5221 can swing in one direction. A square hole 5222 is provided in the center of the limiting wheel 522. In order to cooperate with the locking function of the ratchet 52, a limiting post 42 corresponding to the square hole 5222 is fixed on the inner side wall of the insertion cavity 41.

[0044] During operation, the knife blade is placed between the clamping block 53 and the slide 4. Pushing the retainer 51 inward causes its pins 511 to slide within the insertion cavity 41, while the toothed portion 512 drives the outer gear ring 521 to rotate. The limiting wheel 522 ensures that the outer gear ring 521 can only rotate in one direction, thus fixing the retainer 51 in a position that can clamp the blade of the current thickness. In this way, knives of different thicknesses can be stably clamped between the clamping block 53 and the slide 4.

[0045] In some embodiments, to ensure that the ratchet 52 engages with the limiting post 42, a push spring 523 acting on the limiting wheel 522 may be provided in the insertion cavity 41. The push spring 523 continuously applies force to the ratchet, causing it to tend to move closer to and engage with the limiting post 42, thereby enhancing the reliability of self-locking.

[0046] In some embodiments, to improve the clamping friction of the cutting tool and prevent it from slipping during grinding, the clamping block 53 may be provided with anti-slip texture on the side facing the slide table 4. Simultaneously, a return spring 531 may be provided between the clamping block 53 and the main body of the fixing member 51. The return spring 531 acts between the fixing member 51 and the slide table 4, so that when the ratchet 52 is released from its lock, the fixing member 51 can automatically spring open, facilitating the removal of the cutting tool.

[0047] In some embodiments, a push rod 43 is slidably provided on the slide table 4 to facilitate the release of the clamp. One end of the push rod 43 can pass through the limiting post 42 and directly abut against the limiting wheel 522. When it is necessary to release the blade, push the push rod 43 to overcome the force of the push spring 523 and push the limiting wheel 522 away from the limiting post 42. At this time, the limiting wheel 522 can rotate synchronously with the external gear ring 521, and the fixing member 51 can move outward under the elastic force of the return spring 531, thus releasing the clamp.

[0048] In some embodiments, to facilitate the grinding operation, i.e., to drive the slide 4 together with the held knife to move along the guide rail 3 relative to the grinding disc 2, a push rod 6 can be provided on the base 1. The push rod 6 can be designed as a handle or an electric actuator, allowing the user to easily and smoothly drive the slide 4 to reciprocate and complete the grinding process by operating the push rod 6.

[0049] Furthermore, to better support and position the knife, especially knives with long or specially shaped handles, a slot 44 for supporting the knife handle can be provided on the slide 4. This allows the handle to be placed within the slot 44 while the blade is clamped, making the entire knife more stable during the sharpening process.

[0050] The working principle of this utility model is as follows:

[0051] When using the device of this invention, the user first places the knife blade to be sharpened between the clamping block 53 and the slide table 4, with the handle inserted into the slot 44. Then, the user pushes the fixing member 51 closer to the slide table 4, and the ratchet 52 automatically engages and locks the fixing member 51, firmly clamping the blade. Afterwards, the user operates the push rod 6 to make the blade reciprocate along the guide rail 3 on the grinding disc 2 for sharpening. After sharpening is complete, the user operates the push rod 43 to release the clamp and remove the knife.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A thickness-adjustable knife sharpening device, comprising a base with a guide rail thereon, and a sharpening disc on the top of the base, characterized in that, The base is provided with a slide table that slides along the guide rail, and a clamping assembly is provided on the slide table; The clamping assembly includes a fixing member, the fixing member including pins located on both sides thereon, the pins being slidably connected to the slide, the slide being provided with an insertion cavity corresponding to the pin, the pins being provided with toothed portions, and a ratchet being rotatably provided in the insertion cavity to mesh with the toothed portions; The ratchet includes an outer gear ring that meshes with the toothed portion and a limiting wheel disposed within the outer gear ring. The limiting wheel is rotatably connected to the outer gear ring. The inner wall of the outer gear ring is circumferentially arranged with ratchet teeth. The outer peripheral wall of the limiting wheel is provided with a pawl corresponding to the ratchet teeth, and the pawl can swing in one direction. A square hole is opened in the center of the limiting wheel. A limiting post corresponding to the square hole is fixed on the inner side wall of the insertion cavity. A clamping block is provided on the side of the fixing member facing the slide.

2. The adjustable-thickness knife sharpening device according to claim 1, characterized in that, The insertion cavity is provided with a push spring that acts on the limiting wheel, and the push spring causes the ratchet to have a tendency to move closer to the limiting post.

3. The adjustable-thickness knife sharpening device according to claim 1, characterized in that, The clamping block has anti-slip texture on the side facing the slide table; A return spring is provided between the clamping block and the fixing member, and the return spring causes the clamping block to have a tendency to move away from the fixing member.

4. The adjustable-thickness knife sharpening device according to claim 1, characterized in that, A push rod is slidably provided on the slide platform, one end of which passes through the limiting post and abuts against the limiting wheel.

5. The adjustable-thickness knife sharpening device according to claim 1, characterized in that, The base is provided with a push rod that pushes the slide table to move along the guide rail.

6. The adjustable-thickness knife sharpening device according to claim 1, characterized in that, The slide has a hollowed-out groove for supporting the handle of the dinner knife.

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