Knife sharpener

Abstract

The utility model relates to the technical field of knife sharpening devices, and provides a knife sharpener which comprises a mounting shell, a driving part, a rotating shaft, a knife sharpening blade and a transmission assembly. The mounting shell comprises a first shell body, the driving part is fixedly connected to the first shell body, and the rotating shaft is rotationally connected to the first shell body; the sharpening blade is fixedly connected to the rotating shaft; the transmission assembly is arranged between the driving piece and the rotating shaft and located in the first shell. Therefore, the grinding quality of the cutter can be improved.

Description

Technical Field

[0001] The present application relates to the field of knife sharpening devices, and in particular to a knife sharpener. Background Art

[0002] A knife sharpener is a scientific, practical, efficient and convenient knife sharpening device, which is suitable for various kitchen knives, outdoor knives, scissors, Damascus knives and ceramic knives, etc.

[0003] In the related art, refer to Figure 1 The knife sharpener comprises a mounting shell 1, a driving member, a rotating shaft 3, a sharpening blade and a transmission assembly 5. The mounting shell 1 comprises a first shell 11 and a second shell 12. The second shell 12 is clamped to the first shell 11. The driving member is fixedly connected to the first shell 11. The rotating shaft 3 is fixedly connected to the second shell 12. The sharpening blade is fixedly connected to the rotating shaft 3. The driving member and the rotating shaft 3 are transmitted through the transmission assembly 5 so that the driving member drives the sharpening blade to rotate.

[0004] However, in practical applications, relative displacement between the first housing and the second housing is likely to occur, making the transmission of the transmission assembly unstable, which causes the grinding blade to swing, thereby reducing the grinding quality of the tool, and therefore needs to be improved. Utility Model Content

[0005] In order to improve the grinding quality of a knife, the present application provides a knife sharpener.

[0006] The present application provides a knife sharpener adopting the following technical solution:

[0007] A knife sharpener comprises a mounting shell, a driving member, a rotating shaft, a sharpening blade and a transmission assembly; the mounting shell comprises a first shell, the driving member is fixedly connected to the first shell, and the rotating shaft is rotatably connected to the first shell; the sharpening blade is fixedly connected to the rotating shaft; the transmission assembly is arranged between the driving member and the rotating shaft and is located in the first shell.

[0008] By adopting the above technical solution, in actual application, the driving member drives the rotating shaft to rotate through the transmission assembly to drive the grinding blade to rotate, and the tool contacts the surface of the grinding blade, thereby realizing the grinding of the tool; wherein, the driving member is fixedly connected to the first shell, the rotating shaft is rotatably connected to the first shell and the transmission assembly is located in the first shell, that is, the driving member, the rotating shaft and the transmission assembly are all installed in the first shell, which can effectively improve the transmission stability of the transmission assembly, minimize the swinging of the grinding blade, and thus improve the grinding quality of the tool.

[0009] Preferably, the transmission assembly includes a first transmission head and a second transmission head, the first transmission head is arranged on the power output shaft of the driving member, the second transmission head is arranged on one end of the rotating shaft, and the second transmission head is clamped to the first transmission head.

[0010] By adopting the above technical solution, by providing a first transmission head and a second transmission head, and the second transmission head being clamped with the first transmission head, the transmission stability of the transmission assembly can be ensured while facilitating the installation of the transmission assembly.

[0011] Preferably, the knife sharpener further comprises a bearing, and the bearing is fixedly connected to the rotating shaft and clamped to the first shell.

[0012] By adopting the above technical solution and setting a bearing, the rotating shaft is fixedly connected to the bearing and the bearing is clamped to the first shell, so as to realize the rotating connection of the rotating shaft to the first shell, and also realize a detachable connection between the rotating shaft and the first shell, thereby facilitating the replacement of the grinding blade installed on the rotating shaft.

[0013] Preferably, there are two bearings, and the two bearings are respectively arranged at two ends of the rotating shaft.

[0014] By adopting the above technical solution and setting the number of bearings to two, the stability of the rotation of the rotating shaft and the stability of the detachable connection to the first shell are improved.

[0015] Preferably, the knife sharpener further comprises a mounting sleeve, wherein the mounting sleeve is arranged on the rotating shaft, and the sharpening blade is arranged at one end of the mounting sleeve.

[0016] By adopting the above technical solution and providing a mounting sleeve, the mounting between the grinding blade and the rotating shaft can be achieved.

[0017] Preferably, a limiting column is provided on the rotating shaft, and a limiting groove is provided on the mounting sleeve, and the limiting column is clamped in the limiting groove.

[0018] By adopting the above technical solution, a limiting column is provided, and the limiting column is clamped in the limiting groove, so that the mounting sleeve and the rotating shaft rotate synchronously, thereby driving the grinding blade to rotate.

[0019] Preferably, the knife sharpener further comprises an elastic member, the limiting groove extends to an end of the mounting sleeve away from the sharpening blade, so that the limiting column is slidably connected to the limiting groove, and the elastic member drives the limiting column to abut against the end wall of the mounting sleeve located in the limiting groove.

[0020] By adopting the above technical solution and setting an elastic part, when the tool abuts against the surface of the grinding blade, the mounting sleeve is slidably connected to the rotating shaft through the limit groove and the limit column, and the elastic part is compressed, thereby driving the grinding blade to move, which can avoid excessive abutment between the tool and the grinding blade as much as possible, thereby improving the grinding quality of the tool.

[0021] Preferably, the number of the grinding blades is two.

[0022] By adopting the above technical solution, by setting the number of sharpening blades to two, when the two sharpening blades are the same, the service life of the sharpener can be effectively improved. When the two sharpening blades are different, they can be suitable for different types of knives, thereby improving the applicability of the sharpener.

[0023] Preferably, the mounting shell further comprises a second shell, and the second shell is clamped to the first shell and abuts against the driving member.

[0024] By adopting the above technical solution and providing a second shell, the driving component can be shielded and further fixed.

[0025] Preferably, the mounting shell further comprises a third shell, the third shell is snap-connected to the first shell, and the third shell is provided with a sharpening groove at the sharpening blade.

[0026] By adopting the above technical solution and providing the third housing, the tool extends into the first housing through the sharpening groove to shield the iron filings generated by sharpening the tool, thereby ensuring the safety of the sharpener.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The driving member is fixedly connected to the first housing, the rotating shaft is rotatably connected to the first housing, and the transmission assembly is located in the first housing, that is, the driving member, the rotating shaft and the transmission assembly are all installed in the first housing, which can effectively improve the transmission stability of the transmission assembly, minimize the swing of the grinding blade, and thus improve the grinding quality of the tool;

[0029] 2. By providing the first transmission head and the second transmission head, and the second transmission head is clamped with the first transmission head, the transmission stability of the transmission assembly can be ensured while facilitating the installation of the transmission assembly;

[0030] 3. By setting an elastic part, when the tool abuts against the surface of the grinding blade, the grinding blade is slidably connected to the rotating shaft through the limit groove and the limit column, and the elastic part is compressed, which can avoid excessive abutment between the tool and the grinding blade as much as possible, thereby improving the grinding quality of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1It is a schematic diagram of the exploded structure of a knife sharpener in the background technology of the present application;

[0032] Figure 2 is a schematic diagram of the overall structure of the knife sharpener in the embodiment of the present application;

[0033] Figure 3 is a schematic diagram of the knife sharpener in the embodiment of the present application in an open state;

[0034] Figure 4 is a partial exploded schematic diagram of a knife sharpener in an embodiment of the present application;

[0035] Figure 5 It is a partial structural schematic diagram of a knife sharpener in an embodiment of the present application.

[0036] Figure numerals: 1. Mounting shell; 11. First shell; 111. Mounting slot; 112. Card slot; 12. Second shell; 121. Heat dissipation slot; 13. Third shell; 131. Sharpening slot; 2. Driving member; 3. Rotating shaft; 31. Limiting column; 4. Sharpening blade; 5. Transmission assembly; 51. First transmission head; 52. Second transmission head; 6. Bearing; 7. Mounting sleeve; 71. Limiting slot; 8. Elastic member. DETAILED DESCRIPTION

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0038] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0039] The following is combined with Figure 2-5 This application is described in further detail.

[0040] The embodiment of the present application discloses a knife sharpener.

[0041] Reference Figure 2 and Figure 3The knife sharpener comprises a mounting shell 1, a driving member 2, a rotating shaft 3, a sharpening blade 4 and a transmission assembly 5. The mounting shell 1 comprises a first shell body 11. The first shell body 11 is arranged in a rectangular shape. The first mounting shell 1 is provided with a mounting groove 111. The driving member 2 is a driving motor and is installed and fixed in the mounting groove 111. Of course, the driving member 2 can also be a motor, which is not limited in the present application.

[0042] The rotating shaft 3 is rotatably connected to the first housing 11, and the grinding blade 4 is fixedly connected to the rotating shaft 3. The transmission assembly 5 is arranged between the driving member 2 and the rotating shaft 3 to realize the transmission between the driving member 2 and the rotating shaft 3, and the transmission assembly 5 is located in the first housing 11.

[0043] In actual application, the driving member 2 drives the rotating shaft 3 to rotate through the transmission assembly 5, so as to drive the grinding blade 4 to rotate, and the tool contacts and moves with the surface of the grinding blade 4, so as to grind the tool. Among them, since the driving member 2 is fixedly connected to the first housing 11, the rotating shaft 3 is rotatably connected to the first housing 11, and the transmission assembly 5 is located in the first housing 11, that is, the driving member 2, the rotating shaft 3 and the transmission assembly 5 are all installed in the first housing 11, the transmission stability of the transmission assembly 5 can be effectively improved, and the swing of the grinding blade 4 can be minimized, thereby improving the grinding quality of the tool.

[0044] Reference Figure 2 In some embodiments, the mounting shell 1 further includes a second shell 12, which is fixedly connected to the first shell 11 and abuts against the peripheral side of the driver 2 to shield and further fix the driver 2. The second shell 12 is provided with a plurality of heat dissipation slots 121 to facilitate heat dissipation of the driver 2.

[0045] In some embodiments, the mounting shell 1 further includes a third shell 13, which is also fixed to the first shell 11 by clamping. The third shell 13 is provided with a sharpening groove 131 at the sharpening blade 4, and the tool extends into the first shell 11 through the sharpening groove 131 to shield the iron filings generated by the tool grinding and avoid the iron filings from splashing as much as possible, thereby ensuring the safety of the sharpener. It should be noted that the sharpening groove 131 is tilted so that the tool is tilted against the sharpening blade 4 to improve the grinding effect of the tool.

[0046] Reference Figure 3 and Figure 4 In some embodiments, the transmission assembly 5 includes a first transmission head 51 and a second transmission head 52. The first transmission head 51 is fixedly connected to the power output shaft of the driving member 2, and the second transmission head 52 is fixedly connected to one end of the rotating shaft 3. The second transmission head 52 is clamped and fixed to the first rotating shaft 3. While facilitating the installation of the transmission assembly 5, the transmission stability of the transmission assembly 5 can also be ensured.

[0047] In some embodiments, the knife sharpener further comprises a bearing 6, the bearing 6 is fixedly connected to the rotating shaft 3, and the first housing 11 has a slot 112, the bearing 6 is fixedly engaged in the slot 112, so that the rotating shaft 3 is rotatably connected to the first housing 11. Furthermore, by disassembling the second transmission head 52 from the first transmission head 51 and disassembling the bearing 6 from the slot 112, the disassembly between the rotating shaft 3 and the first housing 11 can be achieved, so that the sharpening blade 4 installed on the rotating shaft 3 is easily replaced.

[0048] In some embodiments, there are two bearings 6, which are fixedly connected to the two ends of the rotating shaft 3 respectively. Correspondingly, there are also two slots 112 to improve the stability of the rotation of the rotating shaft 3 and the stability of the rotating shaft 3 being detachably connected to the first shell 11.

[0049] In some embodiments, the knife sharpener further comprises a mounting sleeve 7 , which is disposed on the rotating shaft 3 , and the sharpening blade 4 is fixedly connected to one end of the mounting sleeve 7 , thereby achieving installation between the sharpening blade 4 and the rotating shaft 3 .

[0050] In some embodiments, a limit column 31 is provided on the circumferential side of the rotating shaft 3, and correspondingly, a limit groove 71 is opened on the mounting sleeve 7. The limit column 31 is clamped and limited in the limit groove 71. During the rotation process, the rotating shaft 3 drives the mounting sleeve 7 to rotate synchronously through the limit column 31 and the limit groove 71, thereby driving the grinding blade 4 to rotate.

[0051] In some embodiments, the number of the sharpening blades 4 is two, and correspondingly, the number of the mounting sleeves 7 is also two and symmetrically arranged. When the two sharpening blades 4 are the same, the other sharpening blade 4 can be used after one of the sharpening blades 4 is severely worn, thereby effectively improving the service life of the sharpener; when the two sharpening blades 4 are different, they can be applied to different types of knives, thereby improving the applicability of the sharpener.

[0052] Reference Figure 5 In some embodiments, the knife sharpener further comprises an elastic member 8, which may be, but is not limited to, a spring, a wire spring, etc. The elastic member 8 is disposed between the two mounting sleeves 7, and the limiting groove 71 extends along the length direction of the mounting sleeve 7 to the end away from the sharpening blade 4. At this time, the limiting column 31 is slidably connected in the limiting groove 71, and the elastic member 8 drives the two mounting sleeves 7 to move toward the ends away from each other, so that each limiting column 31 abuts against the end wall of each mounting sleeve 7 located in the limiting groove 71. During the use of the knife sharpener, when the tool abuts against the surface of the sharpening blade 4, the mounting sleeve 7 is slidably connected to the rotating shaft 3 through the limiting groove 71 and the limiting column 31, and the elastic member 8 is compressed, thereby driving the sharpening blade 4 to move, which can avoid excessive abutment between the tool and the sharpening blade 4 as much as possible, so as to improve the sharpening quality of the tool.

[0053] The implementation principle of this embodiment is: in actual application, the driving member 2 drives the rotating shaft 3 to rotate through the transmission assembly 5 to drive the grinding blade 4 to rotate, and the tool is inserted into the grinding groove 131 to contact the surface of the grinding blade 4 and move the tool along the grinding groove 131, thereby realizing the grinding of the tool.

[0054] Among them, since the driving member 2 is fixedly connected to the first shell 11, the rotating shaft 3 is rotatably connected to the first shell 11 and the transmission assembly 5 is located in the first shell 11, that is, the driving member 2, the rotating shaft 3 and the transmission assembly 5 are all installed in the first shell 11, the transmission stability of the transmission assembly 5 can be effectively improved, and the swinging of the grinding blade 4 can be minimized, thereby improving the grinding quality of the tool.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A knife sharpener, characterized in that: The invention comprises a mounting shell (1), a driving member (2), a rotating shaft (3), a grinding blade (4) and a transmission assembly (5); the mounting shell (1) comprises a first shell (11), the driving member (2) is fixedly connected to the first shell (11), the rotating shaft (3) is rotatably connected to the first shell (11); the grinding blade (4) is fixedly connected to the rotating shaft (3); and the transmission assembly (5) is arranged between the driving member (2) and the rotating shaft (3) and is located in the first shell (11).

2. A knife sharpener according to claim 1, characterized in that: The transmission assembly (5) comprises a first transmission head (51) and a second transmission head (52); the first transmission head (51) is arranged on a power output shaft of the driving member (2); the second transmission head (52) is arranged on one end of the rotating shaft (3); and the second transmission head (52) is clamped to the first transmission head (51).

3. A knife sharpener according to claim 1, characterized in that: The knife sharpener further comprises a bearing (6), wherein the bearing (6) is fixedly connected to the rotating shaft (3) and is clamped to the first housing (11).

4. A knife sharpener according to claim 3, characterized in that: The number of the bearings (6) is two, and the two bearings (6) are respectively arranged at two ends of the rotating shaft (3).

5. A knife sharpener according to claim 1, characterized in that: The knife sharpener further comprises a mounting sleeve (7), wherein the mounting sleeve (7) is arranged on the rotating shaft (3), and the sharpening blade (4) is arranged on one end of the mounting sleeve (7).

6. A knife sharpener according to claim 5, characterized in that: The rotating shaft (3) is provided with a limiting column (31), the mounting sleeve (7) is provided with a limiting groove (71), and the limiting column (31) is clamped in the limiting groove (71).

7. A knife sharpener according to claim 6, characterized in that: The knife sharpener further comprises an elastic member (8), the limiting groove (71) extending to an end of the mounting sleeve (7) away from the sharpening blade (4), so that the limiting column (31) is slidably connected to the limiting groove (71), and the elastic member (8) drives the limiting column (31) to abut against an end wall of the mounting sleeve (7) located in the limiting groove (71).

8. A knife sharpener according to claim 1 or 7, characterized in that: The number of the grinding blades (4) is two.

9. A knife sharpener according to claim 1, characterized in that: The mounting shell (1) further comprises a second shell (12), wherein the second shell (12) is clamped on the first shell (11) and abuts against the driving member (2).

10. The knife sharpener according to claim 1, characterized in that: The mounting shell (1) further comprises a third shell (13), the third shell (13) being snap-connected to the first shell (11), and the third shell (13) is provided with a sharpening groove (131) located at the sharpening blade (4).

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