A knife sharpener and sharpening device

Abstract

This utility model provides a knife sharpener, including a handle, a turntable, a bearing, and a sharpening blade. At least one end of the handle has a center protruding outward to form a positioning post. The turntable has a first mounting groove on its center facing the handle. The bearing is fixedly installed in the first mounting groove and sleeved on the positioning post. The turntable is mounted to the handle via the bearing and the positioning post. The sharpening blade is located on the side of the turntable away from the handle. The knife sharpener provided by this utility model has a simple structure, is very labor-saving for users, and achieves excellent sharpening results. This utility model also provides a knife sharpening device.

Description

Technical Field

[0001] This utility model belongs to the field of knife sharpening technology, specifically a knife sharpening device and a knife sharpening apparatus. Background Technology

[0002] In daily life, knives are one of the essential kitchen utensils. The blade is the key part of the knife. After prolonged use, the blade will become dull. In order to improve the cutting effect of the knife, the blade needs to be sharpened regularly to keep it sharp.

[0003] Existing whetstones are generally heavy and inconvenient to move. Users need to hold the knife and move it relative to the whetstone to achieve the whetstone effect, which is very inconvenient to operate. Utility Model Content

[0004] This invention provides a knife sharpener for solving the above-mentioned problems.

[0005] This utility model provides a knife sharpener, including a handle, a turntable, a bearing, and a sharpening blade. At least one end of the handle has a positioning post protruding outward from its center. The turntable has a first mounting groove on the side of the turntable facing the handle. The bearing is fixedly installed in the first mounting groove and sleeved on the positioning post. The turntable is installed on the handle via the bearing and the positioning post. The sharpening blade is located on the side of the turntable away from the handle.

[0006] Specifically, the sharpening device further includes a fastener, and the turntable has a through hole at its center; the bearing includes a rotating part and a fixed part, the outer periphery of the rotating part abuts against the first mounting groove, and the inner diameter of the rotating part corresponds to the size of the through hole; the rotating part is sleeved on the fixed part, and the rotating part and the fixed part are rotatably and slidably connected, and the inner diameter of the fixed part corresponds to the size of the positioning post; the fastener passes through the through hole and the bearing and is connected to the positioning post, and presses the fixed part onto the positioning post.

[0007] Specifically, the fastener includes a screw, the screw having an integrally formed pressure plate, and the positioning post having a threaded hole adapted to the screw.

[0008] Specifically, the fastener further includes a first washer, which is sandwiched between the pressure plate and the fixing part.

[0009] Specifically, the sharpener also includes an anti-slip ring, and the outer peripheral side of the turntable is recessed to form a second mounting groove. The anti-slip ring is sleeved in the second mounting groove and protrudes relative to the outer peripheral side of the turntable.

[0010] Specifically, the sharpening device also includes an adsorption magnet, the turntable has at least one magnet hole, the magnet hole is spaced apart from the first mounting groove, the adsorption magnet is housed in the magnet hole, and the sharpening blade is magnetically attracted to the adsorption magnet on the side of the turntable away from the handle.

[0011] Specifically, the opening of the magnet hole faces the handle side.

[0012] Specifically, a raised ring extends around the turntable away from the handle, and the height of the raised ring is less than the thickness of the grinding blade, thus defining the position of the grinding blade on the turntable.

[0013] Specifically, the protrusion has at least one notch, and the turntable has a handle position near the notch.

[0014] Specifically, the sharpener also includes a second washer, which is sleeved on the positioning post and clamped between the bearing and the handle.

[0015] Specifically, the two ends of the handle are symmetrically provided with positioning posts, and the turntable, the bearing and the grinding blade are installed on both ends.

[0016] Specifically, the outer periphery of the middle part of the handle is recessed inward to form a gripping groove.

[0017] This utility model also provides a knife sharpening device, including a locator and a sharpener; the locator has at least one mounting surface obliquely arranged around its periphery and is fitted with a magnetic sheet; the sharpener includes a handle, a turntable, a bearing, and a sharpening blade, with a positioning post protruding outward from the center of at least one end of the handle, and a first mounting groove opened on the center of the turntable facing the handle; the bearing is fixedly installed in the first mounting groove and sleeved on the positioning post, and the turntable is mounted on the handle via the bearing and the positioning post; the sharpening blade is located on the side of the turntable away from the handle; the sharpener and the locator are placed at intervals on the same processing platform, the knife is magnetically attracted to the magnetic sheet and positioned at an angle to the processing platform, the sharpener is in contact with the blade and rotates relative to it, and the sharpening blade sharpens the blade.

[0018] Compared with existing technologies, the sharpening device provided by this utility model, by setting up the handle, the turntable, the bearing, and the sharpening blade, allows the sharpening blade to rotate and roll relative to the handle together with the turntable, thereby completing the sharpening of the blade during the movement of the sharpening blade relative to the cutting tool. This design is relatively simple in structure, the handle is easy to manufacture, the cost is low, the user experience is very labor-saving, and the sharpening effect is good.

[0019] The sharpening device provided by this utility model can effectively position the knife by cooperating with the sharpener and the locator, which facilitates the sharpening of the blade. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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, wherein:

[0021] Figure 1 This is a three-dimensional structural diagram of the sharpening device provided by this utility model;

[0022] Figure 2 This is a three-dimensional structural schematic diagram of the first embodiment of the sharpening tool provided by this utility model;

[0023] Figure 3 This is an exploded perspective view of the first embodiment of the knife sharpener provided by this utility model;

[0024] Figure 4 This is a partial cross-sectional planar schematic diagram of the first embodiment of the sharpening tool provided by this utility model;

[0025] Figure 5 This is an exploded perspective view of the second embodiment of the sharpening tool provided by this utility model;

[0026] Figure 6 This is a partial cross-sectional schematic diagram of the second embodiment of the sharpening tool provided by this utility model;

[0027] Figure 7 yes Figure 5 An enlarged view of the turntable shown. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] Please refer to the following at the same time Figures 1 to 7 The present application provides a knife sharpening device 100, which includes a positioner 30 and a sharpener 10. The positioner 30 has at least one mounting surface 31 obliquely arranged around its periphery, and a magnetic sheet 33 is mounted thereon.

[0034] The sharpening device 10 includes a handle 1, a turntable 2, a bearing 5, and a sharpening blade 4. At least one end of the handle 1 has a center protruding outward to form a positioning post 102. The turntable 2 has a first mounting groove 204 on the side facing the handle 1. The bearing 5 is fixedly installed in the first mounting groove 204 and sleeved on the positioning post 102. The turntable 2 is mounted to the handle 1 via the bearing 5 and the positioning post 102. The sharpening blade 4 is located on the side of the turntable 2 away from the handle 1.

[0035] The sharpener 10 and the locator 30 are placed at intervals on the same processing platform (not shown). The cutting tool (not shown) is magnetically attracted to the magnetic sheet 33 and positioned at an angle to the processing platform. The sharpener 10 is attached to the cutting edge of the cutting tool and rotates relative to it, and the sharpening blade 4 is used to sharpen the cutting edge.

[0036] The sharpening device 10, by incorporating the bearing 5, allows the turntable 2 to rotate relative to the positioning post 102. The sharpening blade 4 rotates together with the turntable 2 relative to the handle 1. The overall movement of the sharpening device 10 relative to the positioning device 30 enables the sharpening of the knife. During sharpening, the sharpening blade 4 provides more even and thorough sharpening, improving the sharpening effect. Simultaneously, it requires less effort from the user, making it highly practical.

[0037] It should be noted that the locator 30 has an obliquely arranged mounting surface 31 on its circumference. The cutting tool is magnetically attracted to the mounting surface 31, allowing it to be positioned at an angle to the processing platform. Since the grinding blade 4 is placed relatively perpendicular to the processing platform, the cutting edge can be sharpened using the grinding blade 4. Of course, the locator 30 can also have multiple mounting surfaces 31 spaced apart along its circumference, each at a different angle to the processing platform. Different angles can achieve different sharpening effects on the cutting edge.

[0038] Please refer to this carefully. Figure 5 and Figure 6 To ensure the stability of the rotational connection between the turntable 2 and the handle 1, in this embodiment, the sharpener 10 further includes a fastener, and the turntable 2 has a through hole 203 at its center. The bearing 5 includes a rotating part 51 and a fixing part 53. The outer periphery of the rotating part 51 abuts against the first mounting groove 204, and the inner diameter of the rotating part 51 corresponds to the size of the through hole 203. The rotating part 51 is sleeved on the fixing part 53, and the rotating part 51 and the fixing part 53 are rotatably and slidably connected. The inner diameter of the fixing part 53 corresponds to the size of the positioning post 102. The fastener passes through the through hole 203 and the bearing 5 and is connected to the positioning post 102, and presses the fixing part 53 onto the positioning post 102.

[0039] It should be noted that the above-mentioned corresponding dimensions mainly refer to the dimensions being basically the same. Specifically, the inner diameter of the rotating part 51 corresponds to the size of the through hole 203. This means that the rotating part 51 will not extend inward relative to the through hole 203, thus avoiding contact with the fastener. This ensures that the fastener only presses the fixing part 53 onto the positioning post 102. The inner diameter of the fixing part 53 corresponds to the size of the positioning post 102, meaning that the fixing part 53 can be precisely fitted onto the positioning post 102, improving the stability and reliability of the fastener pressing the fixing part 53 onto the positioning post 102.

[0040] The fastener may include a screw 7, which has an integrally formed pressure plate. The positioning post 102 has a threaded hole adapted to the screw 7. The fastener abuts against the fixing part 53 through the pressure plate and engages with the threaded hole in the positioning post 102 through the screw 7, thereby achieving the clamping function. Alternatively, the fastener may also include the screw 7 and a first washer 8, which is sandwiched between the pressure plate and the fixing part 53. Since the inner diameter of the fixing part 53 is generally large, this arrangement eliminates the need for an excessively large pressure plate; simply adding the first washer 8 is sufficient to clamp the fixing part 53, resulting in a simpler structure and easier manufacturing.

[0041] To reduce rolling wear on the turntable 2, the sharpener 10 also includes an anti-slip ring 3. A second mounting groove 205 is formed recessed on the outer periphery of the turntable 2, and the anti-slip ring 3 is fitted into the second mounting groove 205 and protrudes relative to the outer periphery of the turntable 2. When the turntable 2 rolls, it mainly contacts the processing platform through the anti-slip ring 3, preventing wear on the turntable 2. Moreover, if the anti-slip ring 3 is damaged, it can be directly disassembled and replaced, which is very convenient and cost-effective. The designed anti-slip ring 3 also ensures sufficient friction between the sharpener and the processing platform during sharpening, thereby driving the turntable 2 and the sharpening blade 4 to rotate, resulting in more even sharpening. It also raises the turntable 2 and separates it from the processing platform, preventing the sharpener 10 from scratching the processing platform. Simultaneously, it prevents wet or corrosive objects on the processing platform from corroding the turntable 2 and the handle 1. Furthermore, it provides some shock resistance when the sharpener 10 experiences collisions, improving its service life.

[0042] Optionally, the anti-slip ring 3 can be a silicone ring, a rubber ring, or other materials; there are no restrictions on this.

[0043] Please continue reading. Figure 3 , Figure 4 , Figure 6 and Figure 7The sharpener 10 also includes an adsorption magnet 6. The turntable 2 has at least one magnet hole 202, which is spaced apart from the first mounting groove 204. The adsorption magnet 6 is housed within the magnet hole 202. The sharpening blade 4 is magnetically attracted to the turntable 2 on the side away from the handle 1 by the adsorption magnet 6. By setting the adsorption magnet 6, the sharpening blade 4 can be magnetically fixed to one side of the turntable 2, allowing for subsequent sharpening operations and preventing the sharpening blade 4 from shifting during back-and-forth sharpening, thus ensuring the subsequent sharpening effect. When the sharpening blade 4 needs to be replaced, it can be pulled out of the turntable 2 with a little force for replacement, making disassembly and assembly more convenient while ensuring installation strength.

[0044] It should be noted that the magnet hole 202 can be configured to penetrate the turntable 2, or it can be configured as a one-way opening. For example... Figure 3 and Figure 4 As shown, in the first embodiment, the opening of the magnet hole 202 is positioned facing the grinding blade 4, which can increase the magnetic attraction to the grinding blade 4. Figure 6 and Figure 7 As shown, in the second embodiment, the opening of the magnet hole 202 is arranged facing the handle 1. This arrangement not only facilitates the installation of the adsorption magnet 6, but also, due to the unidirectional placement, the adsorption magnet 6 is not easily dropped from the opening due to the magnetic attraction of the grinding blade 4.

[0045] Please continue reading. Figure 5 The turntable 2 has a raised ring 23 extending from the side away from the handle 1. The height of the raised ring 23 is less than the thickness of the grinding blade 4, which limits the position of the grinding blade 4 on the turntable 2. Moreover, the raised ring does not affect the grinding blade 4's grinding of the tool. The grinding blade 4, through the adsorption magnet 6 and the raised ring 23, can effectively limit the position of the grinding blade 4 on the turntable 2, preventing deviation during tool grinding and improving the stability and safety of the sharpener 10.

[0046] To facilitate the disassembly and replacement of the grinding blade 4, the protrusion 23 is provided with at least one notch, and the turntable 2 has a handle position 201 near the notch. In this embodiment, it is preferable that two notches and the handle position 201 are arranged symmetrically to facilitate simultaneous application of force from both sides to remove the grinding blade 4 from the turntable 2.

[0047] The sharpener 10 also includes a second washer 9, which is sleeved on the positioning post 102 and sandwiched between the bearing 5 and the handle 1. Since the rotating part 51 drives the turntable 2 to rotate relative to the handle 1, the second washer 9 prevents direct friction between the turntable 2, the rotating part 51, and the handle 1. This not only protects the various structures and prevents wear, but also effectively reduces the frictional force of relative rotation, making the turntable 2 roll more smoothly.

[0048] It is important to note that the sharpening device 10 can be symmetrically arranged. That is, the positioning posts 102 are symmetrically arranged at both ends of the handle 1, and the turntable 2, the bearing 5, and the sharpening blade 4 are mounted on each end. This arrangement not only allows the turntable 2 to roll more smoothly, facilitating the sharpening of the tool, but also allows for sharpening from both ends by using different types of sharpening stones. Users can select different types of sharpening stones according to their desired sharpening precision without needing to change them temporarily.

[0049] In this embodiment, a grip groove 101 is formed by an inwardly recessed outer circumference of the middle portion of the handle 1. This inwardly recessed grip groove 101 facilitates user gripping while reducing overall weight, thus improving ease of use. In another embodiment, the handle 1 may also be cylindrical, or other recessed shapes may be formed on the outer circumference of the middle portion of the handle 1; this is not limited. The handle 1 may be made of wood or other materials; this is not limited.

[0050] Compared with existing technologies, the sharpening device 10 provided by this utility model, by setting up the handle 1, the turntable 2, the bearing 5, and the sharpening blade 4, allows the sharpening blade 4 to rotate and roll relative to the handle 1 together with the turntable 2, thereby completing the sharpening of the blade during the movement of the sharpening blade 4 relative to the knife. This arrangement has a simple structure, the handle is easy to manufacture, the cost is low, and the user experience is very labor-saving. The sharpening device 100 provided by this utility model, through the cooperation of the sharpening device 10 and the positioner 30, can effectively position the knife, facilitating the sharpening of the blade.

[0051] The above description is merely an embodiment of this utility model. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this utility model, but these improvements all fall within the protection scope of this utility model.

Claims

1. A sharpener characterized in that, include: A handle, wherein at least one end of the handle has a positioning post protruding outward from its center; A turntable, wherein a first mounting groove is provided at the center of the turntable facing the handle; A bearing, which is fixedly installed in the first mounting groove and sleeved on the positioning post, is used to mount the turntable to the handle via the bearing and the positioning post; and A grinding blade is disposed on the side of the turntable away from the handle.

2. The sharpener of claim 1, wherein It also includes fasteners, and the turntable has a through hole at its center. The bearing includes: The rotating part, the outer peripheral side of which abuts against the first mounting groove, and the inner diameter of the rotating part corresponding to the size of the through hole; and The fixed part is fitted with the rotating part, and the rotating part is rotatably and slidably connected to the fixed part. The inner diameter of the fixed part is set to correspond to the size of the positioning post. The fastener passes through the through hole and the bearing and is connected to the positioning post, and presses the fixed part onto the positioning post.

3. The sharpener of claim 2 wherein, The fastener includes a screw, the screw having an integrally formed pressure plate, and the positioning post having a threaded hole adapted to the screw.

4. The sharpener of claim 3, wherein The fastener further includes a first washer, which is sandwiched between the pressure plate and the fixing part.

5. The sharpener of claim 1 wherein, It also includes an anti-slip ring, with a second mounting groove formed by the inward recess of the outer periphery of the turntable, the anti-slip ring being fitted into the second mounting groove and protruding relative to the outer periphery of the turntable.

6. The sharpener of claim 1 wherein, It also includes an adsorption magnet. The turntable has at least one magnet hole, which is spaced apart from the first mounting groove. The adsorption magnet is housed in the magnet hole, and the grinding blade is magnetically attracted to the adsorption magnet on the side of the turntable away from the handle.

7. The sharpener of claim 6 wherein, The opening of the magnet hole faces the handle side.

8. The sharpener of claim 6 wherein, The circumference of the turntable extends away from the handle to form a raised ring. The height of the raised ring is less than the thickness of the grinding blade, which defines the position of the grinding blade on the turntable.

9. The sharpener of claim 8 wherein, The protrusion has at least one notch, and the turntable has a handle position near the notch.

10. The sharpener of claim 1 wherein, It also includes a second gasket, which is sleeved on the positioning post and clamped between the bearing and the handle.

11. The sharpener of claim 1 wherein, The handle has symmetrically arranged positioning posts at both ends, and the turntable, the bearing and the grinding blade are installed on each of them.

12. The sharpener of claim 11 wherein, The handle has a grip groove formed by an inwardly recessed outer periphery in the middle.

13. A sharpening device for sharpening a blade of a knife, characterized in that include: A locator, wherein at least one mounting surface is obliquely arranged on the periphery of the locator, and a magnetic sheet is mounted thereon; and As described in any one of claims 1 to 12, the sharpener and the locator are placed at an interval on the same processing platform, the cutting tool is attracted to the magnetic sheet and positioned at an angle to the processing platform, the sharpener is in contact with the cutting edge and rotates relative to it, and the cutting edge is sharpened by the sharpening blade.

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