Knife stone fastening device of knife sharpener

Abstract

The utility model provides a knife stone fastening device of a knife sharpener, which comprises a handle, a knife stone fastening device and a knife stone fastening device, the number of the clamps is two, the clamps are oppositely arranged on the handle in a sleeving mode, and at least one clamp can move in the axis direction of the handle; the two ends of the knife stone abut against the inner side end portions of the two clamps; the locking nut is connected to the external thread of the handle and can abut against the outer end face of one clamp. By changing the distance between the two clamps, installation of knife stones with different lengths is met, the fastening effect on the knife stones is achieved through the wedge-shaped groove structures on the clamps and the locking nuts, and compared with a traditional spring adjusting mode, on one hand, the knife stone adjusting device has the advantage of being wide in length adaptation range of the knife stones, and on the other hand, the knife stone adjusting device is simple in structure and convenient to use. On the other hand, the fastening effect on the knife stone can be improved, and the application range and the structural stability of the knife stones with different sizes are improved.

Description

Technical Field

[0001] This utility model relates to the field of knife sharpener technology, and in particular to a knife sharpener stone fastening device. Background Technology

[0002] In daily life, a knife sharpener is an important tool for sharpening knife blades in the kitchen. When using it, the knife is usually held in the hand and sharpened between the knife and the sharpener. Different types of sharpening stones are often required for different knives and processes. The blade cannot be fixed when adjusting the angle, which causes the blade to deform due to uneven force after processing and sharpening. This leads to the deformation of the knife blade during sharpening and greatly reduces the sharpening effect.

[0003] To address the aforementioned technical issues, Chinese utility model patent CN216264952U discloses a novel four-in-one angled knife sharpener. In this design, the sharpening assembly includes a first end block, a second end block, and a sharpening stone embedded between them. The first end block is fixedly connected to a connecting rod, and an adjusting rod is fixed to the opposite end of the connecting rod. The adjusting rod passes through the second end block and is equipped with an adjusting nut and a first spring. However, this design uses a spring to secure the sharpening stone, which limits its stability and adjustability, and cannot effectively accommodate sharpening stones of various styles and lengths, resulting in low stability and a narrow applicability. Utility Model Content

[0004] This utility model proposes a sharpening stone fastening device for a knife sharpener, in order to solve the problems of poor flexibility and low structural stability of the fastening devices used to fix the sharpening stone in existing knife sharpeners as mentioned in the background art.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A whetstone fastening device for a knife sharpener includes:

[0007] The handle has external threads on its outer surface;

[0008] Two clamps are mounted on the handle facing each other, and at least one clamp is movable along the axis of the handle.

[0009] The whetstone has its two ends abutting against the inner ends of the two clamps;

[0010] A locking nut is attached to the external thread of the handle and can abut against the outer end face of one of the clamps;

[0011] By adjusting the distance between the two clamps, whetstones of different lengths can be installed between them. Tightening the locking nut causes the two clamps to move towards each other, thus securing the whetstones.

[0012] Preferably, the outer wall of the handle is formed with a guide plane, and the center of the clamp is provided with a mounting hole that has the same cross-sectional profile as the guide plane of the handle, so that when the clamp is fitted on the handle, it can only move along the axis of the handle.

[0013] Preferably, the outer surface of the clamp is formed with at least one wedge-shaped groove, and the two ends of the wedge stone are formed with wedge-shaped platforms that can be placed in the wedge-shaped groove.

[0014] Preferably, the outer surface of the fixture is formed with two wedge-shaped grooves, which are located on the upper and lower surfaces of the fixture, respectively.

[0015] Preferably, the end of the handle has a spherical hand grip.

[0016] Preferably, the fixture has a threaded hole on its surface, into which a screw is inserted and which abuts against the outer wall of the handle.

[0017] Preferably, the end of the handle is detachably connected to a movable rod.

[0018] Preferably, the handle is connected to the movable rod via a threaded connection.

[0019] Preferably, the clamp has outwardly extending protrusions on both sides to limit the lateral displacement of the whetstone.

[0020] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0021] This invention allows for the installation of whetstones of different lengths by changing the distance between two clamps. The wedge-shaped groove structure on the clamps and the locking nut achieve a fastening effect on the whetstone. Compared with the traditional spring adjustment method, it has the advantage of a wide range of whetstone length adaptability and can also improve the fastening effect on the whetstone, thereby improving the applicability and structural stability of whetstones of different sizes. Attached Figure Description

[0022] 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, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of the present utility model;

[0024] Figure 2 This is an exploded view of the present invention;

[0025] Figure 3 This is a side view of the present invention;

[0026] Figure 4 A perspective view of the handle of the utility model;

[0027] Figure 5 This is a perspective view of the clamp in Embodiment 1 of this utility model;

[0028] Figure 6 This is a perspective view of the clamp in Embodiment 2 of this utility model;

[0029] Figure 7 This is the usage state of the present utility model. Figure 1 ;

[0030] Figure 8 This is the usage state of the present utility model. Figure 2 ;

[0031] Figure 9 This is the usage state of the present utility model. Figure 3 ;

[0032] Figure 10 This is the usage state of the present utility model. Figure 4 .

[0033] in:

[0034] 1. Handle; 101. Handheld part; 102. External thread; 103. Guide plane; 2. Locking nut; 3. Sharpening stone; 301. Wedge platform; 4. Fixture; 401. Mounting hole; 402. Wedge groove; 403. Threaded hole; 404. Protrusion; 5. Movable rod. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0036] like Figure 1-5 As shown in Figures 7-8, a sharpening stone 3 fastening device for a sharpening device includes:

[0037] The handle 1 has an external thread 102 on its outer surface. In this example, the handle 1 is a long rod-shaped structure. The end of the handle 1 has a spherical hand-held part 101, which makes it easy for the operator to hold the hand-held part 101 to operate the handle 1. In other embodiments, the hand-held part 101 can also be designed as an elliptical sphere or a flat structure, which is not limited here.

[0038] Two clamps 4 are mounted on the handle 1 facing each other. At least one clamp 4 can move along the axis of the handle 1. The surface of the clamp 4 is provided with a threaded hole 403. A screw is inserted into the threaded hole 403 and can abut against the outer wall of the handle 1. In this embodiment, both clamps 4 can move along the axis of the handle 1. When one of the clamps 4 is adjusted to the position, the screw can be inserted into the threaded hole 403 and the clamp 4 can be connected and fixed to the handle 1.

[0039] The whetstone 3 has its two ends abutting against the inner ends of the two clamps 4;

[0040] Locking nut 2 is connected to the external thread 102 of handle 1 and can abut against the outer end face of one of the clamps 4;

[0041] By adjusting the distance between the two clamps 4, whetstones 3 of different lengths can be installed between the two clamps 4, and by tightening the locking nut 2, the two clamps 4 move towards each other, thereby securing the whetstones 3.

[0042] Specifically, the outer wall of the handle 1 is formed with a guide plane 103. More specifically, in this example, there are two guide planes 103, which are symmetrically arranged at the upper and lower positions of the handle 1. The center of the clamp 4 is provided with a mounting hole 401 that has the same cross-sectional profile as the guide plane 103 of the handle 1, so that when the clamp 4 is sleeved on the handle 1, it can only move along the axis of the handle 1, so as to prevent the clamp 4 from rotating around the central axis of the handle 1.

[0043] Specifically, the outer surface of the clamp 4 is formed with at least one wedge-shaped groove 402, and the two ends of the wedge-shaped stone 3 are formed with wedge-shaped platforms 301 that can be placed in the wedge-shaped groove 402. More specifically, in this embodiment, the outer surface of the clamp 4 is formed with two wedge-shaped grooves 402, and the two wedge-shaped grooves 402 are respectively located on the upper and lower surfaces of the clamp 4. That is, there are two wedge-shaped stones 3 in this example, which are located on the upper and lower positions of the two clamps 4 respectively. This arrangement is used to install wedge-shaped stones 3 of different grit sizes at two different positions to meet the needs of fine or coarse grinding of the tool.

[0044] Understandably, in other embodiments, the outer surface of the clamp 4 may be formed with three, four or even more wedge-shaped grooves 402 to accommodate a greater number of whetstones 3, so as to make a more detailed division of the grit size of the whetstones 3.

[0045] Specifically, the handle 1 is detachably connected to a movable rod 5 at its end. More specifically, in this example, the handle 1 is connected to the movable rod 5 via a threaded connection. The center hole at the end of the handle 1 has an internal thread, and the end of the movable rod 5 has a threaded portion, thereby enabling quick assembly and disassembly of the movable rod 5 and the handle 1. The movable rod 5 is used to mount on the sharpener and can slide relative to the sharpener body. Its specific working principle is a conventional setting in the prior art and will not be elaborated further here.

[0046] like Figure 7 As shown, the whetstone 3 in this figure is relatively short in length; as Figure 8 As shown in the figure, the whetstone 3 is relatively long. Within a certain range, regardless of how the length of the whetstone 3 changes, the stability of the whetstone 3 installation structure will not be affected by tightening the locking nut 2. Example

[0047] like Figure 6 As shown, the difference between this embodiment and the above embodiment is only that: the clamp 4 has protrusions 404 extending outward on both sides to limit the lateral displacement of the whetstone 3. The upper surface of the protrusion 404 is higher than the lower surface of the whetstone 3, so that when the whetstone 3 is displaced laterally, it can contact the protrusion 404. The protrusion 404 is used to limit the whetstone 3 laterally to prevent the whetstone 3 from falling off the clamp 4, and further improve the installation firmness of the whetstone 3.

[0048] like Figure 9-10 The image shown is a diagram illustrating the usage state of the sharpener with the 404 protrusion structure in this embodiment. Figure 9 The length of the whetstone 3 is proportional to its dimensions. Figure 10 The medium-sized whetstone 3 has a short length.

[0049] 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, improvements, etc., 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 whetstone fastening device for a knife sharpener, characterized in that, include: The handle (1) has an external thread (102) on its outer surface. There are two clamps (4) that are mounted on the handle (1) facing each other, and at least one clamp (4) can move along the axis of the handle (1); The whetstone (3) has its two ends abutting against the inner ends of the two clamps (4); A locking nut (2) is connected to the external thread (102) of the handle (1) and can abut against the outer end face of one of the clamps (4); By adjusting the distance between the two clamps (4), whetstones (3) of different lengths can be installed between the two clamps (4), and by tightening the locking nut (2), the two clamps (4) move towards each other, thereby securing the whetstones (3).

2. The whetstone fastening device for a knife sharpener according to claim 1, characterized in that, The outer wall of the handle (1) is formed with a guide plane (103), and the center of the clamp (4) is provided with a mounting hole (401) that is the same as the cross-sectional profile of the guide plane (103) of the handle (1), so that when the clamp (4) is fitted on the handle (1), it can only move along the axis of the handle (1).

3. The whetstone fastening device for a knife sharpener according to claim 1, characterized in that, The outer surface of the clamp (4) is formed with at least one wedge groove (402), and the two ends of the whetstone (3) are formed with wedge platforms (301) that can be placed in the wedge groove (402).

4. The whetstone fastening device for a knife sharpener according to claim 3, characterized in that, The clamp (4) has two wedge-shaped grooves (402) formed on its outer surface. The two wedge-shaped grooves (402) are located on the upper and lower surfaces of the clamp (4), respectively.

5. The whetstone fastening device for a knife sharpener according to claim 1, characterized in that, The end of the handle (1) is provided with a hand-held part (101) with a spherical structure.

6. The whetstone fastening device for a knife sharpener according to claim 1, characterized in that, The clamp (4) has a threaded hole (403) on its surface. A screw is inserted into the threaded hole (403) and the screw can abut against the outer wall of the handle (1).

7. The whetstone fastening device for a knife sharpener according to claim 1, characterized in that, The handle (1) has a movable rod (5) detachably connected to its end.

8. The whetstone fastening device for a knife sharpener according to claim 7, characterized in that, The handle (1) is connected to the movable rod (5) by a threaded connection.

9. The whetstone fastening device for a knife sharpener according to claim 1, characterized in that, The clamp (4) has outwardly extending protrusions (404) on both sides for limiting the lateral displacement of the whetstone (3).

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