Multi-functional electric knife sharpener

Abstract

This utility model discloses a multifunctional electric tool sharpener, including a housing and a motor and grinding wheel assembly disposed within the housing. The housing includes a base and a motor cover and two grinding wheel covers mounted on the base. A coarse grinding wheel assembly is mounted on the output shaft on one side of the motor, and a fine grinding wheel assembly is mounted on the output shaft on the other side of the motor. The motor is mounted in the mounting area of ​​the base to drive the coarse and fine grinding wheel assemblies to rotate. The top of the first grinding wheel cover has a first and a second grinding groove corresponding to the coarse grinding wheel, and the top of the second grinding wheel cover has a third and a fourth grinding groove corresponding to the fine grinding wheel. An adjusting plate is installed at the fourth grinding groove of the second grinding wheel cover. The width of the fourth grinding groove can be changed by pushing the adjusting plate left and right. This electric tool sharpener can sharpen various tools. The electric tool sharpener has one coarse grinding wheel and one fine grinding wheel, and users can choose between coarse or fine grinding without changing the grinding wheel.

Description

Technical Field

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

[0002] Electric knife sharpeners are commonly used tools in daily life. They are small in size and convenient for sharpening knives such as kitchen knives and fruit knives. However, existing electric knife sharpeners are often only suitable for sharpening kitchen knives and fruit knives and do not have the function of sharpening other everyday tools.

[0003] In addition, existing electric tool sharpeners usually only have one grinding wheel. The hardness and grit size of the grinding wheel determine the types of tools that can be sharpened, which makes the tool sharpener's tool sharpening range relatively small. If other types of tools need to be sharpened, the grinding wheel must be replaced. Summary of the Invention

[0004] This utility model provides a multi-functional electric knife sharpener capable of sharpening various tools. The electric sharpener features a coarse grinding wheel and a fine grinding wheel, allowing users to select between coarse and fine grinding without needing to change the grinding wheel. The specific technical solution is as follows:

[0005] A multi-functional electric knife sharpener includes a housing and a motor and grinding wheel assembly disposed within the housing. The housing includes a base and a motor cover and two grinding wheel covers mounted on the base. A coarse grinding wheel assembly is mounted on the output shaft on one side of the motor, and a fine grinding wheel assembly is mounted on the output shaft on the other side of the motor. The motor is mounted in the mounting area of ​​the base to drive the coarse grinding wheel assembly and the fine grinding wheel assembly to rotate.

[0006] The top of the first grinding wheel guard is provided with a first grinding groove and a second grinding groove corresponding to the coarse grinding wheel. The top of the second grinding wheel guard is provided with a third grinding groove and a fourth grinding groove corresponding to the fine grinding wheel. An adjusting plate is installed at the fourth grinding groove of the second grinding wheel guard. The width of the fourth grinding groove can be changed by pushing the adjusting plate left and right to achieve grinding of different tools.

[0007] Furthermore, the grinding wheel assembly includes a bushing, a grinding wheel fitted on the bushing, and two springs. The first and second springs are installed on both sides of the grinding wheel and tightened by screws. The bushing is fixed on the output shaft of the motor and can rotate with the output shaft of the motor. A fixing sleeve is provided inside the grinding wheel. One side of the outer wall of the bushing is flat. The inside of the fixing sleeve is provided with a slot that matches the outer wall of the bushing. The bushing is inserted into the fixing sleeve to connect the grinding wheel with the bushing.

[0008] Furthermore, there are two fixed sleeves, which are symmetrically installed in the slots of the grinding wheel. The first spring abuts against the bushing and the fixed sleeve, and the second spring abuts against the screw and the other fixed sleeve. The elasticity of the springs allows the grinding wheel to move axially, thereby avoiding hard collisions with the tool during grinding.

[0009] Furthermore, a slide rail is provided on the inner top of the second grinding wheel guard near the fourth grinding groove, and a slider is provided on the adjustment plate. The slider is installed in the slide rail and can move along the slide rail. In use, the width of the fourth grinding groove can be changed by pushing the adjustment plate left and right.

[0010] Furthermore, the slide rail is formed by the protruding rib on the top of the inner side of the grinding wheel cover and the cover plate fixed on the protruding rib. A limit block is provided inside the slide rail, and a limit groove that cooperates with the limit block is provided on the slider of the adjusting plate. The movement range of the adjusting plate can be limited by the limit block.

[0011] Furthermore, a buckle is provided near the fourth grinding groove of the grinding wheel guard. The buckle is located between the two slide rails. A protrusion is provided on the adjustment plate. When the adjustment plate is pushed to the maximum width of the fourth grinding groove, the protrusion of the adjustment plate is locked on the stop edge of the buckle to prevent the adjustment plate from shifting.

[0012] Furthermore, a connecting post is provided at the bottom of the motor cover, and the base is connected to the connecting post of the motor cover by screws, so that the motor cover and the base are connected and fixed.

[0013] Furthermore, both sides of the base and the motor cover are provided with insertion interfaces, and the grinding wheel cover is provided with a plug-in part that is adapted to the insertion interfaces of the base and the motor cover. The grinding wheel cover is connected to the base and the motor cover through the plug-in part.

[0014] Furthermore, a switch is provided on the base, which is connected to the motor via a wire, and the switch is also connected to a power cord.

[0015] Furthermore, suction cups are installed on the bottom feet of the base to fix the sharpener in place and prevent it from shifting during use.

[0016] This utility model has a simple structure and reasonable design. The width of the fourth grinding groove can be changed by pushing the adjustment plate left and right to achieve grinding of different tools. The electric grinder has a coarse grinding wheel and a fine grinding wheel, which expands the range of grinding tools and makes it easier to select coarse or fine grinding according to the sharpness of the tool. There is no need to change the grinding wheel, which speeds up the grinding speed and saves time and effort. Attached Figure Description

[0017] Figure 1 This is a perspective view of the utility model;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 This is a three-dimensional representation of the grinding wheel assembly of this utility model. Figure 1 ;

[0020] Figure 4 This is a three-dimensional representation of the grinding wheel assembly of this utility model. Figure 2 ;

[0021] Figure 5 This is an exploded structural diagram of the grinding wheel assembly of this utility model;

[0022] Figure 6 This is a structural schematic diagram of the second grinding wheel guard of this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the grinding wheel guard after removing the cover plate of this utility model;

[0024] Figure 8 This is an exploded structural diagram of the second grinding wheel guard of this utility model;

[0025] Figure 9 This is a schematic diagram of the structure of the grinding wheel guard after removing the adjusting plate of this utility model;

[0026] Figure 10 It is Figure 1 A schematic diagram of the structure after the adjustment plate is pushed to the right;

[0027] Figure 11 This is a schematic diagram of the grinding axe of this utility model;

[0028] Figure 12 This is a schematic diagram of the grinding screwdriver of this utility model. Detailed Implementation

[0029] To better understand the purpose, function, and specific design of this utility model, the following description of the multifunctional electric knife sharpener is provided in further detail with reference to the accompanying drawings.

[0030] like Figure 1 and Figure 2 As shown, the multifunctional electric knife sharpener of this utility model includes a housing 1 and a motor 3 and a grinding wheel assembly disposed within the housing 1. The housing 1 includes a base 11 and a motor cover 12, a grinding wheel cover 13, and a grinding wheel cover 14 mounted on the base 11. A coarse grinding wheel assembly 4 is mounted on the output shaft on one side of the motor 3, and a fine grinding wheel assembly 5 is mounted on the output shaft on the other side of the motor 3. The motor 3 is mounted in the mounting area of ​​the base 11 to drive the coarse grinding wheel assembly 4 and the fine grinding wheel assembly 5 to rotate. A switch 2 is provided on the base 11, and the switch 2 is connected to the motor 3 via a wire. The switch 2 is also connected to a power cord.

[0031] like Figure 1 , Figure 2 , Figure 9 and Figure 10 As shown, the top of the grinding wheel guard 13 is provided with a first grinding groove 131 and a second grinding groove 133 corresponding to the coarse grinding wheel, and the top of the grinding wheel guard 14 is provided with a third grinding groove 141 and a fourth grinding groove 148 corresponding to the fine grinding wheel. An adjusting plate 142 is installed at the fourth grinding groove 148 of the grinding wheel guard 14. The width of the fourth grinding groove 148 can be changed by pushing the adjusting plate 142 left and right to achieve grinding of different tools.

[0032] Specifically, such as Figures 3-5 As shown, the two grinding wheel assemblies have the same structure. For ease of understanding and explanation, the coarse grinding wheel assembly 4 is taken as an example. The coarse grinding wheel assembly 4 includes a bushing 43, a coarse grinding wheel 41 fitted on the bushing 43, and two springs. The first spring 44 and the second spring 45 are installed on both sides of the coarse grinding wheel 41 and are tightened by screws 46. The bushing 43 is fixed on the output shaft of the motor 3 and can rotate with the output shaft of the motor 3. A fixing sleeve 42 is provided inside the coarse grinding wheel 41. One side of the outer wall of the bushing 43 is flat. The fixing sleeve 42 is provided inside the bushing with a slot 421 that matches the outer wall of the bushing. The bushing 43 is inserted into the fixing sleeve 42, so that the grinding wheel 41 is connected to the bushing 43.

[0033] There are two fixing sleeves 42, which are symmetrically installed in the slot of the grinding wheel 41. The first spring 44 abuts against the bushing 43 and the fixing sleeve 42, and the second spring 45 abuts against the screw 46 and the other fixing sleeve 42. The elasticity of the springs allows the grinding wheel 41 to move axially, thereby avoiding hard collision with the tool when grinding.

[0034] like Figures 6-9 As shown, a slide rail 146 is provided on the inner top of the grinding wheel guard 14 near the fourth grinding groove 148. A slider 1421 is provided on the adjusting plate 142. The slider 1421 is installed in the slide rail 146 and can move along the slide rail 146. In use, the width of the fourth grinding groove 148 can be changed by pushing the adjusting plate 142 left and right.

[0035] The slide rail 146 is formed by the protruding rib 149 at the top inside the grinding wheel guard 142 and the cover plate 145 fixed on the protruding rib 149. A limit block 1461 is provided inside the slide rail 146. The slider 1421 of the adjusting plate 142 is provided with a limiting groove 14211 that cooperates with the limit block 1461. The movement range of the adjusting plate 142 can be limited by the limit block 1461.

[0036] A buckle 147 is provided on the grinding wheel guard 142 near the fourth grinding groove 148. The buckle 147 is located between two slide rails 146. A protrusion 1422 is provided on the adjusting plate 142. When the adjusting plate 142 is pushed to the maximum width of the fourth grinding groove 148, the protrusion 1422 of the adjusting plate 142 is locked on the retaining edge 1471 of the buckle 147 to prevent the adjusting plate from shifting.

[0037] like Figure 1 and Figure 2 As shown, a connecting post 122 is provided at the bottom of the motor cover 12, and the base 11 is connected to the connecting post 122 of the motor cover 12 by screws, so that the motor cover 12 and the base 11 are connected and fixed.

[0038] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the base 11 has insertion interfaces 112 on both sides, and the motor cover 12 also has insertion interfaces 121 on both sides. One side of the grinding wheel cover 13 has a plug-in portion that matches the insertion interface of the base 11, and the other side of the grinding wheel cover 13 has a plug-in portion 132 that matches the insertion interface of the motor cover 12. One side of the grinding wheel cover 14 has a plug-in portion 143 that matches the insertion interface of the base 11, and the other side of the grinding wheel cover 14 has a plug-in portion 144 that matches the insertion interface of the motor cover 12, so that the grinding wheel cover 13 and the grinding wheel cover 14 are connected to the base and the motor cover via the plug-in portions.

[0039] Each of the bottom feet of the base 11 is equipped with a suction cup 111, which can be used to fix the sharpener to prevent it from shifting during use.

[0040] This electric knife sharpener features both coarse and fine grinding wheels, expanding the range of tools it can sharpen and allowing for selection of coarse or fine grinding based on the tool's sharpness. When sharpening scissors or thicker tools, push the adjustment plate to the right to maximize the width of the fourth sharpening groove (e.g., ...). Figure 10 As shown), it can be used to sharpen scissors or thicker tools. Since the two sharpening guards of this invention are detachably connected to the base, when sharpening other tools, such as axes or screwdrivers, the appropriate coarse or fine grinding wheel can be selected as needed, and then the corresponding sharpening guard can be removed for sharpening (e.g., Figure 11 and Figure 12 As shown, this electric tool sharpener can sharpen a variety of tools, offering greater flexibility in use. During sharpening, the grinding wheel can move axially via the elasticity of the first and second springs. Compared to a fixed, non-retractable grinding wheel, this avoids hard impacts on the tool during sharpening, thus reducing damage to the cutting edge.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-functional electric knife sharpener, comprising a housing and a motor and grinding wheel assembly disposed within the housing, characterized in that, The housing includes a base and a motor cover and two grinding wheel covers mounted on the base. A coarse grinding wheel assembly is mounted on the output shaft on one side of the motor, and a fine grinding wheel assembly is mounted on the output shaft on the other side of the motor. The motor is mounted in the mounting area of ​​the base to drive the coarse grinding wheel assembly and the fine grinding wheel assembly to rotate. The top of the first grinding wheel guard is provided with a first grinding groove and a second grinding groove corresponding to the coarse grinding wheel. The top of the second grinding wheel guard is provided with a third grinding groove and a fourth grinding groove corresponding to the fine grinding wheel. An adjusting plate is installed at the fourth grinding groove of the second grinding wheel guard. The width of the fourth grinding groove can be changed by pushing the adjusting plate left and right to achieve grinding of different tools.

2. The multi-functional electric sharpener of claim 1 wherein, The grinding wheel assembly includes a bushing, a grinding wheel fitted on the bushing, and two springs. The first and second springs are installed on both sides of the grinding wheel and tightened by screws. The bushing is fixed on the output shaft of the motor and can rotate with the output shaft of the motor. A fixing sleeve is provided inside the grinding wheel. One side of the outer wall of the bushing is flat. The inside of the fixing sleeve is provided with a slot that matches the outer wall of the bushing. The bushing is inserted into the fixing sleeve to connect the grinding wheel and the bushing.

3. The multi-functional electric sharpener of claim 2 wherein, The number of fixed sleeves is two, and the two fixed sleeves are symmetrically installed in the slot of the grinding wheel. The first spring abuts against the bushing and the fixed sleeve, and the second spring abuts against the screw and the other fixed sleeve. The elasticity of the springs allows the grinding wheel to move axially, thereby avoiding hard collision with the tool when grinding.

4. The multi-functional electric sharpener of claim 1 wherein, The inner top of the second grinding wheel guard is provided with a slide rail near the fourth grinding groove. A slider is provided on the adjustment plate. The slider is installed in the slide rail and can move along the slide rail. In use, the width of the fourth grinding groove can be changed by pushing the adjustment plate left and right.

5. The multi-functional electric sharpener of claim 4 wherein, The slide rail is formed by a raised rib on the top of the inner side of the grinding wheel guard and a cover plate fixed on the raised rib. A limit block is provided inside the slide rail, and a limit groove that cooperates with the limit block is provided on the slider of the adjusting plate. The movement range of the adjusting plate can be limited by the limit block.

6. The multi-functional electric sharpener of claim 5 wherein, A buckle is provided near the fourth grinding groove of the grinding wheel guard. The buckle is located between the two slide rails. A protrusion is provided on the adjustment plate. When the adjustment plate is pushed to the maximum width of the fourth grinding groove, the protrusion of the adjustment plate is locked on the stop edge of the buckle to prevent the adjustment plate from shifting.

7. The multi-functional electric sharpener of claim 1 wherein, The bottom of the motor cover is equipped with a connecting post, and the base is connected to the connecting post of the motor cover by screws, so that the motor cover and the base are connected and fixed.

8. The multi-functional electric sharpener according to claim 1 or 7, wherein Both sides of the base and the motor cover are provided with insertion interfaces. The grinding wheel cover is provided with a plug-in part that is adapted to the insertion interfaces of the base and the motor cover. The grinding wheel cover is connected to the base and the motor cover through the plug-in part.

9. The multi-functional electric sharpener of claim 1 wherein, A switch is installed on the base, which is connected to the motor via a wire. The switch is also connected to a power cord.

10. The multi-functional electric sharpener of claim 1 wherein, The base is equipped with suction cups on its bottom feet, which can be used to fix the sharpener in place and prevent it from shifting during use.

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