Knife sharpener

Abstract

The utility model belongs to the technical field of knife sharpeners, and particularly relates to a knife sharpener which comprises a handle, an installation protrusion is arranged at one end of the handle, four installation faces distributed in a rectangular shape are arranged on the peripheral side of the installation protrusion, and the installation faces comprise two first installation faces arranged oppositely and two second installation faces arranged oppositely. First mounting grooves are formed in the first mounting faces correspondingly, first grinding pieces are fixedly arranged in the first mounting grooves correspondingly, second mounting grooves with T-shaped sections are formed in the second mounting faces correspondingly, the ends of the second mounting grooves extend to the ends of the mounting protrusions, second grinding pieces are arranged in the second mounting grooves correspondingly, and fixing covers are detachably arranged at the ends of the mounting protrusions. The fixing cover abuts against the end portion of the second grinding piece and enables the second grinding piece to be fixedly arranged on the installation protrusion. The knife sharpener is simple in structure and convenient to assemble and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of knife sharpeners, in particular to a knife sharpener. Background Art

[0002] A knife sharpener is a device for sharpening knives. The friction between the knife and the sharpener makes the blade sharper.

[0003] Traditional knife sharpeners are mostly integrated whetstones, which are large in size and heavy in weight. In order to facilitate the use of users, most knife sharpeners on the market now include a mounting seat, on which a smaller grinding disc is arranged. For example, the multifunctional knife sharpener disclosed in Chinese utility model patent application CN202220194601.0 includes a handle, a first end of the handle is provided with a ceramic disc, a first diamond disc, a hard alloy disc and a second diamond disc, and the ceramic disc, the first diamond disc, the hard alloy disc and the second diamond disc are arranged on the periphery of the handle, and a receiving groove is provided at the second end of the handle, and a receiving groove is provided in the receiving groove. A wrench is provided, comprising a first wrench arm and a second wrench arm, wherein a first hexagonal hole is penetrated through the first wrench arm, a second hexagonal hole is penetrated through the second wrench arm, and a first avoidance hole and a second avoidance hole are penetrated through the peripheral wall of the handle, the first avoidance hole is arranged corresponding to the first hexagonal hole, and the second avoidance hole is arranged corresponding to the second hexagonal hole, the ceramic sheet is fastened to the handle by gluing; and / or, the first diamond sheet is fastened to the handle by gluing; and / or, the second diamond sheet is fastened to the handle by gluing; and / or, the carbide sheet is fastened to the handle by screws.

[0004] Combined with the drawings in the specification, it can be seen that in the above structure, the first diamond plate and the second diamond plate have a larger contact area with the handle, and the installation is relatively stable, but the ceramic plate and the carbide plate have a smaller contact area with the handle. After long-term use, the glued structure or the threaded structure is easy to loosen, thereby affecting the normal use of the sharpener. Summary of the invention

[0005] In order to overcome the defects in the prior art, the purpose of the utility model is to provide a knife sharpener which is simple in structure, convenient to assemble and convenient to use.

[0006] The purpose of the utility model is achieved in this way:

[0007] A knife sharpener comprises a handle, wherein one end of the handle is provided with a mounting protrusion, and four mounting surfaces distributed in a rectangular shape are provided around the mounting protrusion, wherein the mounting surfaces comprise two first mounting surfaces arranged opposite to each other and two second mounting surfaces arranged opposite to each other, wherein each of the first mounting surfaces is provided with a first mounting groove, and each of the first mounting grooves is provided with a first grinding disc fixedly arranged therein, wherein each of the second mounting surfaces is provided with a second mounting groove with a T-shaped cross section, wherein each end of the second mounting groove extends to an end of the mounting protrusion, and each of the second mounting grooves is provided with a second grinding disc, and a fixing cover is detachably provided at the end of the mounting protrusion, wherein the fixing cover is pressed against the end of the second grinding disc and the second grinding disc is fixedly arranged on the mounting protrusion.

[0008] The utility model is further configured as follows: a connecting groove is provided on the installation protrusion, a clamping groove is provided on the side of the connecting groove, and a clamping hook is provided on the fixing cover, the clamping hook penetrates into the connecting groove and cooperates with the clamping groove, so that the fixing cover and the installation protrusion are relatively fixed.

[0009] The utility model is further configured as follows: the card slot extends to the bottom of the first installation slot, and the card hook is controlled to deform and disengage from the card slot through the first installation slot shell, so that the fixing cover is disengaged from the installation protrusion.

[0010] The utility model is further configured as follows: the fixed cover includes an end cover body, a hook and a pressure block are arranged on the end cover body, a fixing groove is arranged at the end of the mounting protrusion, the fixing groove is arranged at the end of the connecting groove and the second mounting groove, the end cover body is penetrated into the fixing groove, and the pressure block is penetrated into the second mounting groove and pressed against the second grinding plate.

[0011] The utility model is further configured as follows: an inclined first transition surface is provided between the first mounting surface and the second mounting surface.

[0012] The utility model is further configured as follows: the end of the mounting protrusion is provided with an inclined second transition surface, and the second transition surface is arranged between the first mounting surface and the fixing cover.

[0013] The utility model is further configured as follows: the handle comprises a handle body, the mounting protrusion is arranged at one end of the handle body, the end of the second mounting groove extends into the end of the handle body, and one end of the second grinding sheet penetrates into the handle body.

[0014] The utility model is further configured as follows: the second grinding discs on both sides of the mounting protrusion are respectively a tungsten steel grinding disc and a ceramic grinding disc.

[0015] The utility model is further configured as follows: a first guide protrusion and a second guide protrusion with different cross-sectional shapes or sizes are respectively arranged on both sides of the second mounting groove, and a first guide groove and a second guide groove adapted to the first guide protrusion and the second guide protrusion are respectively arranged on the second grinding plate.

[0016] The utility model is further configured as follows: the first grinding disc is glued in the first installation groove, and a receiving groove for receiving glue is arranged on the side of the first installation groove.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. In the utility model, the second grinding disc is stably installed through the T-shaped second mounting groove, so as to avoid the second grinding disc from swinging during use, which is convenient for the user to sharpen the knife. In addition, in the structure, the second grinding disc is fixed in the second mounting groove through the fixing cover, which has a simple structure, is convenient for the stable installation of the second grinding disc, and is convenient for the assembly and production of the knife sharpener.

[0019] 2. The card slot and the card hook structure in the utility model facilitate the quick installation and matching of the fixed cover and the mounting protrusion, and facilitate the assembly and production of the knife sharpener; the card slot extending to the bottom of the first mounting slot is not only convenient for the production and processing of the card slot, but also conducive to the relative disassembly of the fixed cover and the mounting protrusion; the setting of the fixed slot is conducive to the stable installation of the fixed cover, and can prevent objects from penetrating into the bottom of the end cover body and prying the fixed cover off the mounting protrusion, avoiding damage to the card hook, and is conducive to extending the service life of the knife sharpener.

[0020] 3. The setting of the first transition surface and the second transition surface in the utility model avoids direct contact between the knife and the handle during the process of sharpening with the first grinding disc or the second grinding disc, which is convenient for the user to sharpen the knife; the second installation groove extending into the end of the handle body is conducive to increasing the contact area between the second grinding disc and the handle, which is conducive to the stable installation of the second grinding disc and avoids damage to the second installation groove.

[0021] 4. The arrangement of the tungsten steel grinding disc and the ceramic grinding disc in the utility model is conducive to the user's flexible use of the knife sharpener for sharpening, which is convenient for the user to use; the first guide convex edge and the second guide convex edge with different cross-sectional shapes or sizes are convenient for the positioning and installation of the tungsten steel grinding disc and the ceramic grinding disc, avoiding installation errors of the tungsten steel grinding disc and the ceramic grinding disc, and facilitating production and assembly.

[0022] 5. The arrangement of the receiving groove in the utility model prevents glue from overflowing during the gluing process of the first grinding disc, which facilitates the production and assembly of the sharpener. The structure can also prevent the first grinding disc from being installed skewed during the gluing process, resulting in unstable bonding around the first grinding disc, making it easier for the first grinding disc to be glued to the mounting protrusions on all sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 It is an explosion schematic diagram of the utility model;

[0025] Figure 3 It is one of the partial cross-sectional views of the utility model;

[0026] Figure 4 This is the second partial cross-sectional view of the utility model;

[0027] Figure 5 It is a partial structural schematic diagram of the handle in the utility model;

[0028] Figure 6 yes Figure 5 A partial enlarged view of the middle A;

[0029] Figure 7 It is a structural schematic diagram of the fixed cover in the utility model;

[0030] Figure 8 It is a structural schematic diagram of the second grinding disc in the utility model.

[0031] Meanings of the numbers in the figure: 1-handle; 11-handle body; 12-mounting protrusion; 13-first mounting surface; 14-second mounting surface; 15-first mounting groove; 16-second mounting groove; 17-fixing groove; 18-card slot; 19-slot; 131-first transition surface; 132-second transition surface; 151-accommodating groove; 161-first guide convex edge; 162-second guide convex edge; 171-connecting groove; 2-fixing cover; 21-end cover body; 22-card hook; 23-pressing block; 3-first grinding disc; 4-second grinding disc; 41-sliding part; 42-first guide groove; 43-second guide groove;

[0032] 44-Polishing department. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0034] See also Figures 1 to 8As shown, a knife sharpener comprises a handle 1, wherein one end of the handle 1 is provided with a mounting protrusion 12, and the mounting protrusion 12 is provided with four mounting surfaces distributed in a rectangular shape on the periphery thereof, wherein the mounting surfaces comprise two first mounting surfaces 13 arranged opposite to each other and two second mounting surfaces 14 arranged opposite to each other, wherein the first mounting surfaces 13 are each provided with a first mounting groove 15, wherein the first grinding disc 3 is fixedly arranged in the first mounting groove 15, and wherein the second mounting surfaces 14 are each provided with a second mounting groove 16 having a T-shaped cross section, wherein the end of the second mounting groove 16 extends to the end of the mounting protrusion 12, and the second mounting groove 16 is provided with a second mounting groove 16 having a T-shaped cross section. A second grinding disc 4 is provided in each of the two mounting grooves 16, and a fixing cover 2 is detachably provided at the end of the mounting protrusion 12, the fixing cover 2 is pressed against the end of the second grinding disc 4 and the second grinding disc 4 is fixedly provided on the mounting protrusion 12, and the second grinding disc 4 is stably installed through the T-shaped second mounting groove 16 in the structure to prevent the second grinding disc 4 from swinging during use, which is convenient for users to sharpen knives, and the second grinding disc 4 is fixed in the second mounting groove 16 through the fixing cover 2 in the structure, which has a simple structure, is convenient for the stable installation of the second grinding disc 4, and is convenient for the assembly and production of the knife sharpener.

[0035] In the utility model, the first grinding disc 3 is glued in the first mounting groove 15, and a receiving groove 151 for receiving glue is arranged on the side of the first mounting groove 15. The arrangement of the receiving groove 151 prevents the glue from overflowing during the gluing process of the first grinding disc 3, which is convenient for the production and assembly of the sharpener. In addition, this structure can prevent the first grinding disc 3 from being installed skewed during the gluing process, resulting in unstable bonding around the first grinding disc 3, so that the first grinding disc 3 is glued to the mounting protrusion 12 on all sides by glue. In this embodiment, the cross-section of the first mounting groove 15 is rectangular, and the middle parts of the four side walls of the rectangle are provided with receiving grooves 151. The glue can be AB glue, composite glue, etc.

[0036] The mounting protrusion 12 is provided with a connecting groove 171, and a clamping groove 18 is provided on the side of the connecting groove 171. The fixing cover 2 is provided with a clamping hook 22, which penetrates into the connecting groove 171 and cooperates with the clamping groove 18, so that the fixing cover 2 and the mounting protrusion 12 are relatively fixed. The clamping groove 18 and the clamping hook 22 have a simple structure, which is convenient for the quick installation and cooperation of the fixing cover 2 and the mounting protrusion 12, and convenient for the assembly and production of the knife sharpener.

[0037] Preferably, the slot 18 extends to the bottom of the first mounting slot 15, and the hook 22 is controlled to deform and disengage from the slot 18 through the first mounting slot 15 shell, thereby disengaging the fixed cover 2 from the mounting protrusion 12. The slot 18 extending to the bottom of the first mounting slot 15 is not only convenient for the production and processing of the slot 18, but also conducive to the relative disassembly of the fixed cover 2 and the mounting protrusion 12.

[0038] The fixed cover 2 in this embodiment includes an end cover body 21, on which a hook 22 and a pressure block 23 are provided. A fixing groove 17 is provided at the end of the mounting protrusion 12. The fixing groove 17 is provided at the end of the connecting groove 171 and the second mounting groove 16. The end cover body 21 is penetrated in the fixing groove 17, and the pressure block 23 penetrates into the second mounting groove 16 and is pressed against the second grinding plate 4. The setting of the fixing groove 17 is conducive to the stable installation of the fixed cover 2, and can prevent objects from penetrating into the bottom of the end cover body 21 and prying the fixed cover 2 off the mounting protrusion 12, thereby avoiding damage to the hook 22 and helping to extend the service life of the sharpener.

[0039] When the first grinding disc 3 and the second grinding disc 4 are damaged, they can be softened and dissolved by chemical reagents, so that the first grinding disc 3 can be removed from the first mounting groove 15, and then the hook 22 can be controlled to disengage from the slot 18 through the first mounting groove 15, so that the fixed cover 2 can be removed from the mounting protrusion 12, and finally the second grinding disc 4 can be removed from the second mounting groove 16.

[0040] Preferably, an inclined first transition surface 131 is provided between the first mounting surface 13 and the second mounting surface 14. The setting of the first transition surface 131 avoids direct contact between the tool and the side edge of the mounting protrusion 12 during the process of sharpening with the first grinding disc 3 or the second grinding disc 4, which is convenient for the user to sharpen the knife. In this embodiment, an inclined second transition surface 132 is provided at the end of the mounting protrusion 12. The second transition surface 132 is provided between the first mounting surface 13 and the fixed cover 2. The setting of the second transition surface 132 avoids direct contact between the tool and the upper end of the mounting protrusion 12 during the process of sharpening with the first grinding disc 3.

[0041] The handle 1 described in the utility model includes a handle body 11, a mounting protrusion 12 is arranged at one end of the handle body 11, an end of the second mounting groove 16 extends into the end of the handle body 11, one end of the second grinding disc 4 penetrates into the handle body 11, and the second mounting groove 16 extending into the end of the handle body 11 is conducive to increasing the contact area between the second grinding disc 4 and the handle 1, which is conducive to the stable installation of the second grinding disc 4 and avoiding damage to the second mounting groove 16.

[0042] In this embodiment, the second grinding disc 4 includes a grinding portion 44 and a T-shaped sliding portion 41 adapted to the second mounting groove 16, and a slot 19 adapted to the grinding portion 44 is provided on the handle body 11. This structure is beneficial to further improve the connection strength between the second grinding disc 4 and the handle 1, and avoid damage to the second grinding disc 4 and the second mounting groove 16.

[0043] The second grinding discs 4 on both sides of the mounting protrusion 12 are tungsten steel grinding discs and ceramic grinding discs respectively. The provision of tungsten steel grinding discs and ceramic grinding discs is conducive to the user's flexible use of the knife sharpener for sharpening, and is convenient for the user to use. The utility model preferably adopts diamond grinding discs on both sides of the mounting protrusion 12, and the mesh sizes of the diamond grinding discs on both sides of the mounting protrusion 12 are different, so that the user can flexibly grind the tool according to the needs.

[0044] In the utility model, the first guide protrusion 161 and the second guide protrusion 162 with different cross-sectional shapes or sizes are respectively arranged on both sides of the second mounting groove 16, and the first guide groove 42 and the second guide groove 43 adapted to the first guide protrusion 161 and the second guide protrusion 162 are respectively arranged on the second grinding plate 4. The first guide protrusion 161 and the second guide protrusion 162 with different cross-sectional shapes or sizes facilitate the positioning and installation of the tungsten steel grinding plate and the ceramic grinding plate, avoid the installation errors of the tungsten steel grinding plate and the ceramic grinding plate, and facilitate the production and assembly.

[0045] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A knife sharpener, comprising a handle (1), characterized in that: A mounting protrusion (12) is provided at one end of the handle (1), and four mounting surfaces distributed in a rectangular shape are provided around the mounting protrusion (12), the mounting surfaces comprising two first mounting surfaces (13) arranged opposite to each other and two second mounting surfaces (14) arranged opposite to each other, a first mounting groove (15) is provided on each of the first mounting surfaces (13), a first grinding disc (3) is fixedly arranged in each of the first mounting grooves (15), a second mounting groove (16) with a T-shaped cross section is provided on each of the second mounting surfaces (14), an end of the second mounting groove (16) extends to an end of the mounting protrusion (12), a second grinding disc (4) is arranged in each of the second mounting grooves (16), and a fixing cover (2) is detachably provided at the end of the mounting protrusion (12), the fixing cover (2) is pressed against the end of the second grinding disc (4) and the second grinding disc (4) is fixedly arranged on the mounting protrusion (12).

2. A knife sharpener according to claim 1, characterized in that: The mounting protrusion (12) is provided with a connecting groove (171), a side of the connecting groove (171) is provided with a clamping groove (18), and the fixing cover (2) is provided with a clamping hook (22), the clamping hook (22) penetrates into the connecting groove (171) and cooperates with the clamping groove (18), so that the fixing cover (2) and the mounting protrusion (12) are relatively fixed.

3. A knife sharpener according to claim 2, characterized in that: The clamping groove (18) extends to the bottom of the first installation groove (15), and the clamping hook (22) is deformed and disengaged from the clamping groove (18) through the shell of the first installation groove (15), thereby disengaging the fixing cover (2) from the installation protrusion (12).

4. A knife sharpener according to claim 2 or 3, characterized in that: The fixed cover (2) comprises an end cover body (21), a hook (22) and a pressing block (23) are arranged on the end cover body (21), a fixing groove (17) is arranged at the end of the mounting protrusion (12), the fixing groove (17) is arranged at the end of the connecting groove (171) and the second mounting groove (16), the end cover body (21) is inserted into the fixing groove (17), and the pressing block (23) is inserted into the second mounting groove (16) and pressed against the second grinding plate (4).

5. A knife sharpener according to claim 1, characterized in that: An inclined first transition surface (131) is provided between the first mounting surface (13) and the second mounting surface (14).

6. A knife sharpener according to claim 1, characterized in that: An inclined second transition surface (132) is provided at the end of the mounting protrusion (12), and the second transition surface (132) is provided between the first mounting surface (13) and the fixing cover (2).

7. A knife sharpener according to claim 1, characterized in that: The handle (1) comprises a handle body (11), a mounting protrusion (12) is arranged at one end of the handle body (11), an end of the second mounting groove (16) extends into the end of the handle body (11), and one end of the second grinding disc (4) penetrates into the handle body (11).

8. A knife sharpener according to claim 1, characterized in that: The second grinding discs (4) on both sides of the mounting protrusion (12) are respectively a tungsten steel grinding disc and a ceramic grinding disc.

9. A knife sharpener according to claim 8, characterized in that: A first guide protrusion (161) and a second guide protrusion (162) having different cross-sectional shapes or sizes are respectively arranged on both sides of the second mounting groove (16), and a first guide groove (42) and a second guide groove (43) adapted to the first guide protrusion (161) and the second guide protrusion (162) are respectively arranged on the second grinding plate (4).

10. The knife sharpener according to claim 1, characterized in that: The first grinding disc (3) is glued in the first mounting groove (15), and a receiving groove (151) for receiving glue is provided on the side of the first mounting groove (15).

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