Knife sharpener

Abstract

The utility model relates to the technical field of knife sharpening tools, in particular to a knife sharpener which comprises a base assembly capable of being supported on the surface of a base body. The shell is rotatably connected to the base assembly, and an accommodating space is formed in the shell; the knife sharpening mechanism is arranged in the containing space, and the knife sharpening mechanism comprises a grinding element and a driving unit for driving the grinding element to rotate; and a notch is formed in the shell, the blade part of the cutter penetrates into the notch and makes contact with the peripheral face of the grinding element, and the knife sharpener is convenient for a user to use and consistent in grinding effect on the blade.

Description

Technical Field

[0001] This utility model relates to the field of knife sharpening tools, and more specifically to a knife sharpener. Background Technology

[0002] In daily life, people often use various knives such as kitchen knives, fruit knives, and scissors. After a period of use, the blades of these knives become dull and need to be sharpened again. The most primitive way to sharpen them is to use a whetstone or whetstone to sharpen the blades. This method is time-consuming, laborious, and inconvenient to carry.

[0003] Currently, some knife sharpeners have emerged that can significantly reduce the user's workload. Please refer to the new type of knife sharpener disclosed in announcement number CN220279095U. When in use, the knife is placed in the knife slot, and the drive unit drives the spindle to rotate, which in turn drives the grinding element to rotate and grind the knife. The grinding element grinds the knife at high speed, which is more efficient and does not require the manual effort to push and pull the knife, making it more labor-saving.

[0004] However, in the above-mentioned type of sharpener, the tool slot and the body are fixed. Before sharpening, the sharpener needs to be positioned so that the tool slot faces the user and the tool is placed into the tool slot at the correct angle (the angle formed between the tool and the grinding element) in order to meet the requirements of the sharpening operation.

[0005] If the tool slot is not facing the user, and the user places the tool into the tool slot at the same angle as when the tool slot is facing the user, the angle formed between the cutting edge and the grinding element is not standard. Therefore, the grinding effect of the grinding element on the cutting edge is very poor (poor grinding consistency, with over-grinding, under-grinding, etc.). Utility Model Content

[0006] To address the shortcomings and defects of existing technologies, a knife sharpener is provided that is easy for users to use and provides a consistent sharpening effect on the blade.

[0007] A knife sharpener, comprising:

[0008] A base assembly that can be supported on a substrate surface;

[0009] The outer casing is rotatably connected to the base assembly, and an accommodating space is provided inside the outer casing;

[0010] A sharpening mechanism is disposed within an accommodating space. The sharpening mechanism includes a grinding element and a drive unit that drives the grinding element to rotate.

[0011] The housing is provided with a slot through which the cutting edge of the tool passes and contacts the peripheral surface of the grinding element.

[0012] With the above structure, the knife sharpener of this utility model has the following advantages compared with the prior art: When in use, the position of the slot can be adjusted by rotating the outer shell to face the user, so that the user can place the blade into the slot and make contact with the grinding element at the correct angle. The drive unit is started to drive the grinding element to rotate, and the circumferential surface of the grinding element can grind the blade, making the grinding efficient and uniform. Furthermore, the angle of the slot can be adjusted by rotating the outer shell, which is convenient for the user.

[0013] As an improvement of this utility model, the outer shell includes a hemispherical upper shell and a lower shell, which together form a spherical outer shell structure.

[0014] As an improvement of this utility model, the drive unit is vertically mounted on the drive unit frame inside the lower shell, the grinding element is connected to the output end of the drive unit and is located inside the upper shell, and the slot is provided on the upper shell.

[0015] As an improvement of this utility model, the bottom of the lower shell is connected to the base assembly via a connector.

[0016] The bottom of the outer casing is provided with a connecting part that tapers inward, and a connecting hole is formed on the inner side of the connecting part.

[0017] The lower part of the connector passes through the opening at the top of the lower shell and through the connecting hole to be fixed to the base assembly. The connector is provided with a limiting part that forms a blocking engagement with the upper end face of the connecting part. The upper end of the base assembly forms a blocking engagement with the lower end face of the connector.

[0018] As an improvement of this utility model, the bottom inner side of the lower shell is provided with annularly distributed toothed grooves, and a positioning component is provided above the connector. The positioning component includes an elastic element, the inner end of which abuts against the connector, and the outer end of the elastic element is provided with a positioning part. The elastic element drives the positioning part to elastically abut against the toothed groove.

[0019] As an improvement of this utility model, the base assembly includes a connecting seat, a rotating seat, and a suction cup seat arranged sequentially from top to bottom. The bottom of the connecting member is fixed to the top of the connecting seat, the lower part of the connecting seat is fixed to the suction cup seat, and the bottom of the suction cup seat is provided with an adsorption plate. The suction cup frame of the adsorption plate passes through the suction cup seat and extends to the inside of the rotating seat.

[0020] The suction cup frame is provided with a crossbar, and the rotating seat is provided with a sleeve that is fitted on the outer side of the upper end of the suction cup frame. The upper end of the sleeve is provided with a driving surface with varying height, and the driving surface abuts against the crossbar.

[0021] The rotating seat drives the sleeve to rotate, and the driving surface switches the position point where it abuts against the crossbar, thereby driving the crossbar to rise or fall, and thus driving the adsorption plate to adsorb or detach from the adsorption. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0024] Figure 3 This is the utility model Figure 2 A three-dimensional image.

[0025] Figure 4 This is the utility model Figure 3 Enlarged schematic diagram of the structure at point B.

[0026] Figure 5 This is a schematic diagram showing the position and structure of the tooth groove, elastic element, and positioning part of this utility model.

[0027] Figure 6 This is a structural schematic diagram of the rotating seat and sleeve and other components of this utility model.

[0028] The figure shows: 1. Base assembly; 1.1 Connecting seat; 1.11 Groove; 1.2 Rotating seat; 1.3 Suction cup seat; 2. Outer shell; 2.1 Accommodating space; 2.2 Slot; 2.3 Connecting part; 2.31 Connecting hole; 2.4 Gear groove; 2.5 Upper shell; 2.6 Lower shell; 3. Grinding element; 4. Drive unit; 4.1 Drive unit frame; 5. Connecting part; 5.1 Limiting part; 6. Elastic element; 7. Positioning part; 8. Circuit board; 8.1 Button; 9. Battery; 10. Suction cup; 10.1 Suction cup frame; 10.11 Crossbar; 11. Sleeve; 11.1 Drive surface; 12. Spring. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] Please see Figure 1-6 As shown, a knife sharpener includes:

[0031] Base assembly 1, which can be supported on the surface of the substrate;

[0032] The outer shell 2 is rotatably connected to the base assembly 1, and the outer shell 2 has an accommodating space 2.1 inside;

[0033] The grinding mechanism is disposed within the accommodating space 2.1. The grinding mechanism includes a grinding element 3 and a drive unit 4 for driving the grinding element 3 to rotate.

[0034] The outer casing 2 is provided with a slot 2.2, through which the cutting edge of the tool passes and contacts the peripheral surface of the grinding element 3.

[0035] With the above structure, the knife sharpener of this utility model has the following advantages compared with the prior art: When in use, the position of the groove 2.2 can be adjusted by rotating the outer shell 2 to face the user, so that the user can place the blade into the groove 2.2 and contact the grinding element 3 at the correct angle. The drive unit 4 is started to drive the grinding element 3 to rotate, and the circumferential surface of the grinding element 3 can grind the blade, making the grinding efficient and uniform.

[0036] Among them, the grinding element 3 can be a grinding wheel, and the driving unit 4 can be a motor.

[0037] As an improvement of this utility model, the outer shell 2 includes a hemispherical upper shell 2.5 and a lower shell 2.6, which, when combined, form a spherical outer shell 2. After the above improvement, the upper shell 2.5 and the lower shell 2.6 can be assembled with screws. The detachable upper shell 2.5 and lower shell 2.6 allow for internal cleaning, making maintenance simple. Furthermore, the assembled shell has good aesthetics and compactness.

[0038] As an improvement of this utility model, the drive unit 4 is vertically mounted on the drive unit frame 4.1 inside the lower shell 2.6, the grinding element 3 is connected to the output end of the drive unit 4 and is located inside the upper shell 2.5, and the slot 2.2 is set on the upper shell 2.5.

[0039] The drive unit frame 4.1 is also equipped with a battery 9, and the upper shell 2.5 is also equipped with a circuit board 8. The circuit board 8 is equipped with a button 8.1 exposed from the upper shell 2.5 and a charging interface. The battery 9 is electrically connected to the circuit board 8 and the drive unit 4. The user can control the start and stop of the drive unit 4 through the button 8.1.

[0040] The drive unit 4 is vertically positioned at the center of the inner side of the lower shell 2.6, which helps to concentrate the center of gravity and improves the stability of the device.

[0041] The output end of the drive unit 4 is directly connected to the grinding element 3, which reduces the transmission structure, facilitates the miniaturization of the device, and reduces costs;

[0042] The slot 2.2 is located above the upper shell 2.5, and multiple slots are provided around the circumference of the grinding element 3 for user convenience.

[0043] As an improvement of this utility model, the bottom of the lower shell 2.6 is connected to the base assembly 1 via a connector 5.

[0044] The bottom of the outer casing 2 is provided with a connecting part 2.3 that tapers inward, and a connecting hole 2.31 is formed on the inner side of the connecting part 2.3.

[0045] The lower part of the connector 5 passes through the opening above the lower shell 2.6 and through the connecting hole 2.31 to be fixed to the base assembly 1. The connector 5 is provided with a limiting part 5.1 that forms a blocking fit with the upper end face of the connecting part 2.3. The upper end of the base assembly 1 forms a blocking fit with the lower end face of the connecting seat 1.1.

[0046] The connector 5 is preferably cylindrical in shape and fits with the connecting hole 2.31 with a clearance, which can provide effective support for the outer shell 2;

[0047] The lower part of the connector 5 is fixed to the base assembly 1 by screws or the like. The upper end face of the base assembly 1 and the lower end face of the connector 2.3 form a blocking fit. The limiting part 5.1 of the connector 5 and the upper end face of the connector 2.3 form a blocking fit.

[0048] Reduce the shaking of the outer casing 2, make the connection of the outer casing 2 secure, and allow it to rotate.

[0049] As an improvement of this utility model, the bottom inner side of the lower shell 2.6 is provided with annularly distributed toothed grooves 2.4, and a positioning component is provided above the connector 5. The positioning component includes an elastic member 6, the inner end of the elastic member 6 is abutted against the connector 5, and the outer end of the elastic member 6 is provided with a positioning part 7. The elastic member 6 drives the positioning part 7 to elastically abut against the toothed groove 2.4.

[0050] The annularly distributed toothed grooves 2.4 are arranged coaxially with the rotating shaft of the outer shell 2. If the outer shell 2 is rotated, the positioning part 7 can be moved inward under the elastic action of the elastic element 6 and disengage from the toothed grooves 2.4, so that the outer shell 2 can be rotated to the required position. The positioning part 7 can be made of steel ball (glass bead).

[0051] During rotation, the positioning part 7 reciprocates in and out of the tooth groove 2.4. After rotation is completed, the elastic element 6 drives the positioning part 7 to be positioned within the tooth groove 2.4. Without external force intervention, the rotation of the outer shell 2 can be restricted, thereby keeping the position of the groove 2.2 stable and convenient for the user.

[0052] As an improvement of this utility model, the base assembly 1 includes a connecting seat 1.1, a rotating seat 1.2, and a suction cup seat 1.3 arranged sequentially from top to bottom. The bottom of the connector 5 is fixed to the top of the connecting seat 1.1, the lower part of the connecting seat 1.1 is fixed to the suction cup seat 1.3, and the bottom of the suction cup seat 1.3 is provided with an adsorption plate 10. The suction cup frame 10.1 of the adsorption plate 10 passes through the suction cup seat 1.3 and extends to the inner side of the rotating seat 1.2.

[0053] A crossbar 10.11 is provided on the suction cup frame 10.1, and a sleeve 11 is provided on the outer side of the upper end of the rotating seat 12. A driving surface 11.1 with varying height is provided on the upper end of the sleeve 11, and the driving surface 11.1 abuts against the crossbar 10.11.

[0054] Rotate the rotating seat 1.2, which drives the sleeve 11 to rotate. The driving surface 11.1 switches the position point that abuts against the crossbar 10.11, thereby driving the crossbar 10.11 to rise or fall, and thus driving the adsorption disk 10 to adsorb or detach from adsorption.

[0055] As an improvement of this utility model, the base assembly 1 includes a connecting seat 1.1, a rotating seat 1.2, and a suction cup seat 1.3 arranged sequentially from top to bottom. The bottom of the connector 5 is fixed to the top of the connecting seat 1.1, the lower part of the connecting seat 1.1 is fixed to the suction cup seat 1.3, and the bottom of the suction cup seat 1.3 is provided with an adsorption plate 10. The suction cup frame 10.1 of the adsorption plate 10 passes through the suction cup seat 1.3 and extends to the inner side of the rotating seat 1.2.

[0056] The rotating shaft of the rotating seat 1.2 coincides with the rotating shaft of the outer shell 2. A crossbar 10.11 is provided on the suction cup frame 10.1. The rotating seat 1.2 is provided with a sleeve 11 sleeved on the outer side of the upper end of the suction cup frame 10.1. A driving surface 11.1 with varying height is provided on the upper end of the sleeve 11. The driving surface 11.1 abuts against the crossbar 10.11.

[0057] Rotating the rotating seat 1.2 causes the sleeve 11 to rotate, and the driving surface 11.1 switches the position where it abuts against the crossbar 10.11, thereby driving the crossbar 10.11 to rise or fall. If the driving surface 11.1 is in a higher position, the crossbar 10.11 is driven to rise; if the driving surface 11.1 is in a lower position, the crossbar 10.11 is driven to fall.

[0058] This drives the adsorption disk 10 to adsorb or desorb.

[0059] The connector 5, the connector 1.1, and the suction cup seat 1.3 are in a fixed position relative to the outer shell 2 and the rotating seat 1.2. A spring 12 is also provided between the bottom of the suction cup seat 1.3 and the upper end face of the suction cup 10.

[0060] The rotating seat 1.2 can control the adsorption plate 10 to adsorb or detach from the substrate surface, which is convenient to operate and further improves the stability of the device. The stable device ensures stable contact between the grinding element 3 and the cutting edge, resulting in better grinding effect.

[0061] This device also has the following features: the overall device is relatively compact and aesthetically pleasing;

[0062] The rotating shaft A of the grinding element 3, the rotating shaft of the housing 2, and the rotating seat 1.2 are coaxially arranged, so that the rotation center of the device coincides. When the grinding element 3 rotates, the device has less axial movement and is more stable, resulting in a better user experience and a better grinding effect on the cutting edge.

[0063] If the outer casing 2 rotates during use, the angle between the groove 2.2 and the circumferential surface of the grinding element 3 will be the same no matter where the outer casing 2 rotates to. Therefore, the cutting edge will still contact the grinding element 3 at the correct angle, and the risk of inconsistent grinding will be greatly reduced.

[0064] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A knife sharpener, characterized in that, include: A base assembly (1) that can be supported on the surface of a substrate; The outer shell (2) is rotatably connected to the base assembly (1), and the outer shell (2) has an accommodating space (2.1) inside; A sharpening mechanism is provided within a accommodating space (2.1). The sharpening mechanism includes a grinding element (3) and a drive unit (4) for driving the grinding element (3) to rotate. The outer casing (2) is provided with a slot (2.2) for the cutting edge of the tool to pass through and to contact the peripheral surface of the grinding element (3).

2. The knife sharpener according to claim 1, characterized in that: The outer shell (2) includes a hemispherical upper shell (2.5) and a lower shell (2.6), which together form a spherical structure.

3. A knife sharpener according to claim 2, characterized in that: The drive unit (4) is vertically mounted on the drive unit frame (4.1) inside the lower shell (2.6). The grinding element (3) is connected to the output end of the drive unit (4) and is located inside the upper shell (2.5). The slot (2.2) is provided on the upper shell (2.5).

4. A knife sharpener according to claim 2, characterized in that: The bottom of the lower shell (2.6) is connected to the base assembly (1) via a connector (5). The bottom of the outer casing (2) is provided with a connecting part (2.3) that tapers inward, and a connecting hole (2.31) is formed on the inner side of the connecting part (2.3). The lower part of the connector (5) passes through the opening above the lower shell (2.6) and through the connecting hole (2.31) to be fixed to the base assembly (1). The connector (5) is provided with a limiting part (5.1) that forms a blocking fit with the upper end face of the connecting part (2.3). The upper end of the base assembly (1) forms a blocking fit with the lower end face of the connecting seat (1.1).

5. A knife sharpener according to claim 4, characterized in that: The bottom inner side of the lower shell (2.6) is provided with annularly distributed toothed grooves (2.4), and a positioning component is provided above the connector (5). The positioning component includes an elastic element (6), the inner end of the elastic element (6) abuts against the connector (5), and the outer end of the elastic element (6) is provided with a positioning part (7). The driving positioning part (7) of the elastic element (6) elastically abuts against the toothed groove (2.4).

6. A knife sharpener according to claim 4, characterized in that: The base assembly (1) includes a connecting seat (1.1), a rotating seat (1.2), and a suction cup seat (1.3) arranged sequentially from top to bottom. The bottom of the connector (5) is fixed to the top of the connecting seat (1.1), and the lower part of the connecting seat (1.1) is fixed to the suction cup seat (1.3). An adsorption plate (10) is provided at the bottom of the suction cup seat (1.3). The suction cup frame (10.1) of the adsorption plate (10) passes through the suction cup seat (1.3) and extends to the inside of the rotating seat (1.2). The suction cup frame (10.1) is provided with a crossbar (10.11), and the rotating seat (1.2) is provided with a sleeve (11) sleeved on the outer side of the upper end of the suction cup frame (10.1). The upper end of the sleeve (11) is provided with a driving surface (11.1) with varying height, and the driving surface (11.1) abuts against the crossbar (10.11). Rotate the rotating seat (1.2), which drives the sleeve (11) to rotate. The driving surface (11.1) switches the position point that abuts against the crossbar (10.11) to drive the crossbar (10.11) to rise or fall, thereby driving the adsorption disk (10) to adsorb or detach from adsorption.

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