Knife sharpener with automatic angle adjusting function

Abstract

The utility model discloses a knife sharpener with an automatic angle adjusting function, which comprises a main body, a knife rest, a knife rest and a knife rest, wherein a through groove is transversely formed in the upper part of the main body and the upper part of the through groove is open; the upper ends of the sharpening strips are rotationally arranged in the through groove, and the automatic adjusting assembly controls the two sharpening strips to conduct staggered angle adjustment. The automatic adjusting assembly is arranged in the through groove of the main body, the knife sharpening strips are arranged in the through groove of the main body, the automatic adjusting assembly is arranged in the through groove of the main body, the knife sharpening strips are arranged in the through groove, the knife is pressed downwards, the staggered angle of the knife sharpening strips is reduced and the knife is lifted upwards through receding of the automatic adjusting assembly, and the staggered angle of the knife sharpening strips is increased through driving of the automatic adjusting assembly. When a user moves the cutter up and down, the staggered angle of the cutter sharpening strips can be automatically adjusted. And the angle is reduced when the cutter is pressed downwards and is increased when the cutter is lifted upwards, so that the grinding angle is accurately controlled. A user does not need to manually adjust the angle, the operation process is simplified, uniform blade grinding is ensured, and the blade grinding uniformity is improved.

Description

Technical Field

[0001] The utility model discloses a knife sharpener with automatic angle adjustment function, belonging to the technical field of knife sharpeners. Background Art

[0002] A knife sharpener is a tool used to sharpen the blade of a knife. Its main function is to sharpen the blunt blade by grinding the material, so that the knife can be used efficiently again. Knife sharpeners can be used for various types of knives, such as chef knives, scissors and multi-purpose knives.

[0003] Many knife sharpeners on the market currently require users to manually adjust the grinding angle, which may be difficult for ordinary users because they need to precisely maintain the right angle to achieve the ideal sharpening effect. Inaccurate manual adjustment may cause uneven wear of the blade. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a knife sharpener with automatic angle adjustment to solve the problems of the prior art.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A knife sharpener with automatic angle adjustment, comprising: a main body with a through slot horizontally opened on the upper side, wherein the through slot is open on the upper side;

[0007] A group of sharpening bars rotatably disposed in the through slot at the upper end, wherein two of the sharpening bars are staggered;

[0008] and an automatic adjustment component for controlling the two sharpening strips to adjust the staggered angles;

[0009] The tool is pressed down by the sharpening strip on the blade of the tool, and the staggered angle of the sharpening strip is reduced by the giving way of the automatic adjustment component. The tool is lifted up, and the staggered angle of the sharpening strip is increased by the driving of the automatic adjustment component.

[0010] As a further improvement, the automatic adjustment component includes a support bar rotatably mounted on the main body from above, the upper portion of the support bar is recessed inward to form a slot, and protrusions are obliquely provided at the ends of both sides of the slot. The sharpening strip is embedded in the slot and fixed by the protrusions abutting against the end of the sharpening strip.

[0011] As a further improvement, the automatic adjustment component also includes a spring sheet abutting against the back of the support bar, the spring sheet is inserted and fixed on the main body, and the middle part of the spring sheet protrudes toward one side of the support part.

[0012] As a further improvement, the middle protrusions on the adjacent sides of the two support bars are provided with a clamping block, and the two clamping blocks abut against each other to limit the position when the support bars rotate inwards.

[0013] As a further improvement, a redundant space is provided between the two sharpening strips, and the thickness of the clamping block needs to be at least greater than the width of the redundant space.

[0014] As a further improvement, the two support bars are provided with clamping strips on the middle protrusions away from the adjacent sides, and the two clamping strips abut against the side edges of the spring sheets when the support bars rotate outwards.

[0015] As a further improvement, the main body includes a lower support and an upper shell, and the lower support is provided with an inwardly recessed cylindrical groove near the top of the through groove;

[0016] Cylindrical bars are vertically extended outward on both sides of the top of the support bar, and the cylindrical bars are movably installed in the cylindrical grooves. The upper shell is buckled on the lower support from top to bottom, and the interior of the upper shell abuts against the cylindrical bar. Through the matching of the cylindrical bar and the cylindrical groove and the limiting of the upper shell, the support bar can rotate downward in a short range with the cylindrical bar as the axis.

[0017] As a further improvement, the upper shell and the lower support are provided with a groove at the bottom of the through slot, the bottom of the support bar is movably inserted into the groove, the lower support is provided with a notch at the bottom side of the through slot, and the bottom of the spring sheet is movably inserted into the notch.

[0018] The beneficial effects of the utility model are:

[0019] The utility model arranges a set of staggered sharpening strips in the through slot of the main body and is equipped with an automatic adjustment component, so that when the user moves the tool up and down, the staggered angle of the sharpening strips can be automatically adjusted. When the tool is pressed down, the angle decreases, and when the tool is lifted up, the angle increases, thereby accurately controlling the grinding angle. This solution does not require the user to manually adjust the angle, simplifies the operation process, ensures uniform grinding of the blade, and improves the uniformity of blade grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The utility model is a three-dimensional diagram of the structure of a knife sharpener with automatic angle adjustment.

[0022] Figure 2 The utility model is a schematic diagram of the exploded structure of a knife sharpener with automatic angle adjustment.

[0023] Figure 3 It is a schematic diagram of the side structure of a support bar of the utility model.

[0024] Figure 4 The utility model is a schematic diagram of the side structure of a knife sharpener with automatic angle adjustment.

[0025] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure at point A in the middle.

[0026] 1. Main body; 11. Through groove; 132. Notch; 2. Sharpening strip; 3. Support strip; 31. Slot; 32. Protrusion; 4. Spring sheet; 33. Snap-in block; 34. Slot; 13. Lower support; 14. Upper shell; 131. Cylindrical groove; 35. Cylindrical strip; 133. Strip groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0028] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] Many knife sharpeners on the market currently require users to manually adjust the grinding angle, which may be difficult for ordinary users because they need to precisely maintain the right angle to achieve the ideal sharpening effect. Inaccurate manual adjustment may cause uneven wear of the blade.

[0030] Reference Figure 1-5 As shown, a knife sharpener with automatic angle adjustment comprises:

[0031] A main body 1 having a through slot 11 formed transversely on the upper side, wherein the through slot 11 is open on the upper side;

[0032] A group of sharpening strips 2 are rotatably disposed in the through slot 11 at the upper end, and two of the sharpening strips 2 are staggered;

[0033] and an automatic adjustment component for controlling the two sharpening strips 2 to adjust the staggered angles;

[0034] The tool is pressed down by the sharpening strip 2 on the blade of the tool, and the staggered angle of the sharpening strip 2 is reduced by the giving way of the automatic adjustment component. The tool is lifted up, and the staggered angle of the sharpening strip 2 is increased by the driving of the automatic adjustment component.

[0035] By arranging a set of staggered sharpening strips 2 in the through slot 11 of the main body 1 and equipping it with an automatic adjustment component, the staggered angle of the sharpening strips 2 can be automatically adjusted when the user moves the tool up and down. The angle decreases when the tool is pressed down, and increases when the tool is lifted up, thereby accurately controlling the grinding angle. This solution does not require the user to manually adjust the angle, simplifies the operation process, ensures uniform grinding of the blade, and improves the uniformity of blade grinding.

[0036] In order to ensure that the sharpening strip is stably installed on the support strip 3, the automatic adjustment component includes: a support strip 3 rotatably installed on the main body 1 at the upper end, the support strip 3 is recessed inward to form a slot 31, and protrusions 32 are obliquely provided at the ends of both sides of the slot 31. The sharpening strip is embedded in the slot 31 and fixed by the protrusion 32 abutting against the end of the sharpening strip.

[0037] The sharpening strip can be firmly embedded in the slot 31 through the recessed slot 31 formed above the support strip 3 and the convex parts 32 obliquely arranged at the ends of the slot 31. The abutment of the convex parts 32 against the ends of the sharpening strip further fixes the position of the sharpening strip to prevent it from shaking during the sharpening process. Since the sharpening strip is firmly fixed in the slot 31, the automatic adjustment component can accurately adjust the angle of the sharpening strip. This ensures that the sharpening strip can maintain an ideal grinding angle during each grinding process, thereby achieving a uniform and efficient grinding effect.

[0038] The scheme of the slot 31 and the protrusion 32 makes the installation and replacement of the sharpening strip simple and quick. The user only needs to insert the sharpening strip of the corresponding shape into the slot 31 and fix it through the protrusion 32, without complicated operation steps.

[0039] The sharpening strip is installed and removed from the side of the slot 31 .

[0040] In order to enable the support bar 3 to automatically adjust its angle during the grinding process when the tool applies pressure, it also includes a spring sheet 4 abutting against the back of the support bar 3. The spring sheet 4 is inserted and fixed on the main body 1, and the middle part of the spring sheet 4 protrudes toward one side of the support part.

[0041] By installing a spring sheet 4 on the back of the support bar 3, the support bar 3 can automatically adjust its angle when the tool applies pressure. The elastic force of the spring sheet 4 enables the support bar 3 to flexibly respond to different grinding pressures, ensuring that the sharpening bar always maintains the best grinding angle and improves the grinding effect.

[0042] The middle part of the spring sheet 4 is convex toward one side of the support part, and is inserted and fixed on the main body 1, which further enhances the stability of the support strip 3 and the sharpening strip. Even if it is subjected to greater pressure during the sharpening process, the sharpening strip can still remain stable and is not easy to loosen.

[0043] The combination of the spring sheet 4 and the sharpening strip, and its function of automatically adjusting the angle, enables the sharpening strip to adapt to different pressure changes during the sharpening process and maintain a uniform grinding effect. This helps to improve the sharpness and grinding accuracy of the tool and extend the service life of the tool. The solution of the spring sheet 4 makes the automatic adjustment process simple, and the user does not need to manually adjust the angle. The user only needs to perform normal grinding operations, and the grinding angle can be automatically adjusted through the hand pushing pressure during grinding.

[0044] By adding the spring sheet 4, the automatic adjustment component can not only provide stable fixation and precise angle adjustment, but also adapt to pressure changes during the grinding process to ensure that the sharpening strip is always in the best condition, thereby improving the overall grinding effect and durability.

[0045] By adjusting the angle, the contact area between the grinding surface and the tool can be more accurately controlled, thereby improving grinding efficiency. The right angle allows the grinding force to act better on the tool surface, reducing unnecessary friction and heat generation.

[0046] By optimizing the grinding angle, the resistance encountered during grinding can be reduced, making the operation easier, reducing operator fatigue and improving work efficiency. It can form an ideal blade shape and sharpness, improve the cutting performance of the tool, and make it more efficient and stable during use.

[0047] In order to limit the maximum grinding angle of the two groups of sharpening strips, the middle protrusions on the adjacent sides of the two support strips 3 are provided with a clamping block 33, and the two clamping blocks 33 abut against each other to limit the position when the support strips 3 rotate inwards.

[0048] By providing a clamping block 33 in the middle of one side of the support strip 3, the maximum grinding angle of the two sets of sharpening strips can be effectively limited. This ensures that the angle remains consistent each time the sharpening is performed, avoiding uneven grinding and errors caused by angle changes. This reduces the need for operators to frequently adjust the angle during the grinding process, and simplifies the operation process. The limit structure makes angle adjustment faster and more accurate, improving work efficiency.

[0049] The limiting function provided by the clamping block 33 can prevent the support bar 3 from excessively rotating, avoid safety hazards such as tool slippage or grinding sheet breakage due to excessively large angles, and ensure the safety of the grinding process.

[0050] A redundant space is provided between the two sharpening strips, and the thickness of the clamping block 33 needs to be at least greater than the width of the redundant space.

[0051] Providing redundant space and ensuring that the thickness of the clamping block 33 is greater than the width of the redundant space can ensure that the clamping block 33 can be tightly fitted when the support bar 3 rotates inwards, and will not be loosened due to excessive gap. This tight fit helps to maintain the stability and consistency of the grinding angle.

[0052] The existence of the redundant space can absorb and buffer the vibration during the grinding process and reduce the generation of noise. The thickness of the clamping block 33 is greater than the width of the redundant space, ensuring that the clamping block 33 can be firmly abutted, further reducing vibration and noise, and improving the comfort of the grinding process.

[0053] The redundant space solution can prevent direct collision between sharpening strips, reducing the risk of blade damage caused by severe friction. The thickness of the clamping block 33 is greater than the redundant space width to ensure the effectiveness of the limit function, prevent accidental over-rotation, and improve the safety of the sharpening process.

[0054] In order to prevent the spring sheet 4 from popping out and deviating from the installation position, the middle protrusions of the two support bars 3 away from the adjacent side are provided with a clamping strip 34, and the two clamping strips 34 abut against the side of the spring sheet 4 when the support bar 3 rotates outward.

[0055] The provision of the clamping strip 34 ensures that the spring sheet 4 is always in the correct position, avoiding equipment failure caused by the spring sheet 4 falling off. The clamping strip 34 can firmly abut the side of the spring sheet 4 to prevent it from moving or swinging, thereby improving the overall stability of the device. The rotation of the support bar 3 will not affect the position and function of the spring sheet 4, ensuring the stability of the device during operation.

[0056] By fixing the position of the spring sheet 4, the clamping strip 34 reduces the wear caused by uneven force and frequent friction, which can extend the service life of the spring sheet 4, reduce the replacement frequency, and reduce maintenance costs.

[0057] At the same time, the spring piece 4 is prevented from accidentally popping out, reducing the potential safety hazards during operation. The potential harm to the operator caused by the spring piece 4 flying out is avoided, and the safety of equipment operation is improved.

[0058] The main body 1 includes a lower support 13 and an upper shell 14. The lower support 13 is provided with an inwardly concave cylindrical groove 131 near the top of the through groove 11;

[0059] Cylindrical bars 35 are vertically extended outward on both sides of the top of the support bar 3, and the cylindrical bar 35 is movably installed in the cylindrical groove 131. The upper shell 14 is buckled on the lower support 13 from top to bottom, and the interior of the upper shell 14 abuts against the cylindrical bar 35. Through the matching of the cylindrical bar 35 and the cylindrical groove 131 and the limiting of the upper shell 14, the support bar 3 can be rotated downward for a short distance with the cylindrical bar 35 as the axis.

[0060] The upper shell 14 and the lower support 13 are located at the bottom of the through slot 11 and are provided with a groove 133. The bottom of the support bar 3 is movably inserted into the groove 133. The lower support 13 is located at the bottom side of the through slot 11 and is provided with a notch 132. The bottom of the spring sheet 4 is movably inserted into the notch 132.

[0061] The inwardly concave cylindrical groove 131 on the top of the lower support 13 matches the cylindrical bars 35 on both sides of the top of the support bar 3, so that the support bar 3 can be stably installed on the lower support 13. The upper shell 14 is buckled on the lower support 13 and abuts on the cylindrical bars 35, and the support bar 3 is prevented from excessive rotation by limiting, thereby enhancing the stability of the overall structure.

[0062] By movably installing the cylindrical bar 35 in the cylindrical groove 131, the support bar 3 is allowed to rotate in a short range with the cylindrical bar 35 as the axis. A flexible rotation mechanism is provided, which facilitates the support bar 3 to adjust the angle within a limited range to meet different operation requirements.

[0063] The buckle connection between the upper housing 14 and the lower support 13 and the internal contact with the cylindrical bar 35 form an accurate limiting structure. Through this, the rotation range of the support bar 3 can be effectively controlled to avoid excessive or insufficient rotation and ensure the accuracy of the operation.

[0064] The upper housing 14 is buckled on the lower support 13 from top to bottom, which simplifies the assembly process of the components, facilitates quick assembly and disassembly, and improves production efficiency and maintenance convenience.

[0065] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0066] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A knife sharpener with automatic angle adjustment, characterized in that: include: A main body (1) having a through slot (11) formed transversely on the upper side, wherein the through slot (11) is open on the upper side; A group of sharpening strips (2) are rotatably arranged at the upper end in the through slot (11), and two of the sharpening strips (2) are arranged alternately; and an automatic adjustment component for controlling the two sharpening strips (2) to adjust the staggered angles; The tool is pressed down by the tool blade sharpening strip (2), and the staggered angle of the sharpening strip (2) is reduced by the automatic adjustment component giving way; the tool is lifted up, and the staggered angle of the sharpening strip (2) is increased by the drive of the automatic adjustment component.

2. A knife sharpener with automatic angle adjustment according to claim 1, characterized in that: The automatic adjustment component comprises a support bar (3) rotatably mounted on the main body (1) from above, the support bar (3) being recessed inwards to form a slot (31), the ends of both sides of the slot (31) being obliquely provided with raised portions (32), the sharpening bar (2) being embedded in the slot (31) and being fixed by the raised portions (32) abutting against the ends of the sharpening bar (2).

3. A knife sharpener with automatic angle adjustment according to claim 2, characterized in that: The automatic adjustment component also includes a spring sheet (4) abutting against the back of the support bar (3), the spring sheet (4) being inserted and fixed on the main body (1), and the middle part of the spring sheet (4) protruding toward one side of the support part.

4. The knife sharpener with automatic angle adjustment according to claim 3, characterized in that: A clamping block (33) is provided on the middle protrusions on the adjacent sides of the two support bars (3), and the two clamping blocks (33) abut against each other to limit each other when the support bars (3) rotate inwards.

5. The knife sharpener with automatic angle adjustment according to claim 4, characterized in that: A redundant space is provided between the two sharpening strips (2), and the thickness of the clamping block (33) needs to be at least greater than the width of the redundant space.

6. The knife sharpener with automatic angle adjustment according to claim 4, characterized in that: A clamping strip (34) is provided on the middle protrusion of the two support strips (3) away from the adjacent side. When the support strips (3) rotate outwards, the two clamping strips (34) abut against the side edge of the spring sheet (4).

7. The knife sharpener with automatic angle adjustment according to claim 3, characterized in that: The main body (1) comprises a lower support (13) and an upper casing (14); the lower support (13) is provided with an inwardly recessed cylindrical groove (131) at the top near the through groove (11); Cylindrical bars (35) are vertically extended outwards on both sides of the top of the support bar (3), and the cylindrical bar (35) is movably installed in the cylindrical groove (131). The upper shell (14) is buckled on the lower support (13) from top to bottom, and the interior of the upper shell (14) abuts against the cylindrical bar (35). Through the matching of the cylindrical bar (35) and the cylindrical groove (131) and the limiting of the upper shell (14), the support bar (3) rotates downward in a short range with the cylindrical bar (35) as the axis.

8. The knife sharpener with automatic angle adjustment according to claim 7, characterized in that: The upper housing (14) and the lower support (13) are provided with a groove (133) at the bottom of the through slot (11); the bottom of the support bar (3) is movably inserted into the groove (133); the lower support (13) is provided with a notch (132) at the bottom side of the through slot (11); the bottom of the spring sheet (4) is movably inserted into the notch (132).

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