Knife sharpener

Abstract

The utility model discloses a knife sharpener. The knife sharpener comprises an outer shell composed of a first shell body and a second shell body. A sharpening groove and a blade notch are formed in the top surface of one end of the shell, a push button notch is formed in the first shell, a sliding groove mechanism is arranged on the inner wall of the second shell, and the sliding groove mechanism corresponds to the push button notch in position; a blade push button and a blade connected with the blade push button are arranged in an inner cavity of the shell, and the blade push button is arranged in the push button notch and the sliding groove mechanism in a sliding mode so as to drive the blade to enter and exit from the blade notch. Two knife sharpening rods are arranged in the knife sharpening groove and are arranged in a crossed and staggered mode to form a knife sharpening included angle used for knife sharpening. The utility model provides a knife sharpener which is convenient, practical and simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of knife sharpening appliances, and more particularly to a knife sharpener. Background Art

[0002] As the name suggests, a knife sharpener is an appliance used to sharpen knives, typically suitable for various kitchen knives, outdoor knives, and scissors. Depending on how they are used, they can be divided into electric and manual knife sharpeners. Manual knife sharpeners, which are manually sharpened, are generally suitable for home kitchens, outdoor sports, and gardening. Due to their compact size, ease of use, and simple and safe operation, they have become the preferred choice in modern kitchens.

[0003] However, the knife sharpeners currently available on the market are often only used for sharpening knives, and the blades can only be used for cutting. The two need to be used separately, which has a single function and is inconvenient to use. In addition, most existing knife sharpeners have complex internal structures and high manufacturing costs. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a knife sharpener, which combines a blade and the knife sharpener for use, is convenient, practical and has a simple structure.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a knife sharpener, comprising a shell composed of a first shell and a second shell; a top surface of one end of the shell is provided with a knife sharpening groove and a blade notch, the first shell is provided with a push button notch, and an inner wall of the second shell is provided with a slide mechanism, the slide mechanism and the push button notch being located correspondingly; a blade push button and a blade connected to the blade push button are provided in an inner cavity of the shell, the blade push button being slidably arranged in the push button notch and the slide mechanism to drive the blade in and out of the blade notch; two knife sharpening rods are provided in the knife sharpening groove, and the two knife sharpening rods are cross-staggered and arranged to form a knife sharpening angle for sharpening the knife.

[0006] In a preferred technical solution, the blade push button includes an upper push button portion, an intermediate panel, a lower positioning column and a limit block; the upper push button portion is arranged in the middle of the top surface of the intermediate panel, and the upper end extends from the push button slot; the lower positioning column and the limit block are arranged in the middle of the bottom surface of the intermediate panel, and the limit block is located behind the lower positioning column; the blade is installed on the lower positioning column through a through hole opened on the blade, and the rear end of the blade contacts the front end of the limit block; the lower end of the lower positioning column passes through the through hole and is slidably arranged in the slide groove mechanism.

[0007] In a preferred technical solution, the slide mechanism includes a first slide rail provided on the inner wall of the second shell, the lower end of the lower positioning column is slidably provided in the first slide rail, and a corrugated channel is provided at the rear of the first slide rail.

[0008] In a preferred technical solution, the inner wall of the first shell is provided with a first limit plate on both sides of the push button slot, and the first limit plate is parallel to the push button slot; a second limit plate is provided at the inner edge of the top side of the first shell near the blade slot.

[0009] In a preferred technical solution, a raised horizontal bar is provided at the bottom front end of the upper push button part, and multi-stage gear steps are symmetrically provided on both sides of the push button slot; the slide mechanism includes a spring moving block and two springs, the top surface of the spring moving block is provided with a second slide rail, and the lower end of the lower positioning column is slidably arranged in the second slide rail; the bottom surface of the spring moving block is provided with two spring placement holes, and a downward spring mounting column is provided in the middle of the spring placement hole; a plurality of limiting protrusions and two spring placement areas are provided on the inner wall of the second shell, and the plurality of limiting protrusions are arranged around the spring moving block, and the two spring placement areas correspond to the positions of the two spring placement holes. The lower end of the spring is placed in the spring placement area, and the upper end is sleeved on the spring mounting column.

[0010] In a preferred technical solution, the inner wall of the first shell is provided with several third limit plates on both sides of the push button slot, and the third limit plates are parallel to the push button slot; a fourth limit plate is provided at the inner edge of the top side of the first shell near the blade slot.

[0011] In a preferred technical solution, the sharpening groove is a U-shaped groove; the first shell and the second shell are respectively provided with a V-shaped opening structure in the U-shaped groove, one side of the V-shaped opening structure is a straight solid edge, and the other side is provided with a sharpening rod mounting portion; both ends of the sharpening rod mounting portion are respectively provided with a cap for fixing the sharpening rod, the inner side is a beveled edge, and there is no edge toward the outer side of the U-shaped groove; the two ends of the sharpening rod are respectively fixed on the two caps, and the rear end of the sharpening rod is located at the end position of the solid edge, so that the rear part of the sharpening rod is exposed in the sharpening groove.

[0012] In a preferred technical solution, the outer walls of the first shell and the second shell are both provided with V-shaped grooves surrounding the sharpening grooves.

[0013] In a preferred technical solution, the other end of the shell is bent inward to form an annular hand grip, and a reinforcing rib is provided between the inner side wall of the hand grip and the edge inner wall of the shell; the hand grip occupies 2 / 3 of the overall area of ​​the sharpener.

[0014] In a preferred technical solution, the top and bottom surfaces of the shell are parallel planes, and the length of the top surface is greater than the length of the bottom surface. One end of the top and bottom surfaces are connected by an inclined surface, and the other end is connected by an arc surface; the push button slot and the slide mechanism are both arranged parallel to the inclined surface.

[0015] The sharpening rod is a ceramic sharpening rod, a steel sharpening rod or a diamond sharpening rod.

[0016] It can be seen from the above technical solution that, compared with the prior art, the beneficial effects of the present invention are: a knife sharpener that combines a blade and a knife sharpener for use solves the problem of single function of the prior art, is more convenient and practical, and has a simple structure, which can reduce production costs; furthermore, the blade can be retractably stored inside the shell, making it more convenient to use.

[0017] In addition, other advantages of the present invention will be given in the following description, and some will become apparent from the following description or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0019] Figure 1 This is a diagram of a knife sharpener in use according to one embodiment of the present invention;

[0020] Figure 2 This is an exploded view of a knife sharpener in one embodiment of the present invention;

[0021] Figure 3 Another exploded view of a knife sharpener according to one embodiment of the present invention;

[0022] Figure 4 This is an exploded view of a knife sharpener in another embodiment of the present invention;

[0023] Figure 5 Another exploded view of a knife sharpener according to another embodiment of the present invention;

[0024] Figure 6 This is a structural diagram of a blade push button in another embodiment of the present invention;

[0025] Description of reference numerals:

[0026] 1. Housing; 11. First housing; 12. Second housing; 13. Grip; 130. Reinforcement rib; 14. Sharpening groove; 141. Solid edge; 142. Sharpening rod mounting portion; 143. V-shaped groove; 15. Blade notch; 16. Push button notch; 160. Gear step; 161. First stop plate; 162. Second stop plate; 163. Third stop plate; 164. Fourth stop plate; 17. Slideway Mechanism; 170, spring moving block; 171, first slide rail; 1710, wave channel; 172, second slide rail; 173, spring placement hole; 174, spring; 175, limiting protrusion; 176, spring placement area; 31, blade push button; 311, upper push button portion; 312, middle panel; 313, lower positioning column; 314, limiting block; 3110, horizontal bar; 32, blade; 40, sharpening rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0029] Reference Figure 1-6 A knife sharpener according to an embodiment of the present invention is described.

[0030] In one embodiment, if Figure 1-3 As shown, a knife sharpener comprises a housing 1 consisting of a first shell 11 and a second shell 12;

[0031] A sharpening groove 14 and a blade notch 15 are provided on the top surface of one end of the housing 1. A push button notch 16 is provided on the first housing 11. A slide mechanism 17 is provided on the inner wall of the second housing 12. The slide mechanism 17 corresponds to the position of the push button notch 16.

[0032] A blade push button 31 and a blade 32 connected to the blade push button 31 are provided in the inner cavity of the housing 1. The blade push button 31 is slidably disposed in the push button slot 16 and the slide mechanism 17 to drive the blade 32 in and out of the blade slot 15.

[0033] Two sharpening rods 40 are provided in the sharpening groove 14 , and the two sharpening rods 40 are cross-staggered and arranged to form a sharpening angle for sharpening the knife.

[0034] The sharpening rod 40 can be a ceramic sharpening rod, a steel sharpening rod or a diamond sharpening rod, preferably a ceramic sharpening rod, which has moderate hardness, is suitable for grinding general knives, has excellent grinding effect, protects the blade, and can also reduce costs.

[0035] In this embodiment, the blade push button 31 includes an upper push button portion 311 , a middle panel 312 , a lower positioning post 313 and a limiting block 314 ;

[0036] The upper push button portion 311 is provided in the middle of the top surface of the middle panel 312, and the upper end thereof extends from the push button slot 16 for the user to push and pull;

[0037] The lower positioning post 313 and the limiting block 314 are provided in the middle portion of the bottom surface of the middle panel 312, with the limiting block 314 being located behind the lower positioning post 313. The blade 32 is mounted on the lower positioning post 313 via a through hole formed in the blade 32. The rear end of the blade 32 contacts the front end of the limiting block 314. The limiting block 314 is used to limit the upward and downward movement of the blade 32, thereby making the blade 32 more securely mounted.

[0038] The lower end of the lower positioning post 313 passes through the through hole and is slidably disposed in the sliding groove mechanism 17 .

[0039] Among them, the upper push button part 311, the middle panel 312, the lower positioning column 313 and the limit block 314 are an integrally molded structure and are made of plastic; the middle panel 312 can be a long strip with straight edges on both sides and curved edges at both ends; the limit block 314 is arranged in the middle of the curved edge at one end of the bottom surface of the middle panel 312, and the distance between the lower positioning column 313 and the limit block 314 can be 3 to 5 mm, preferably 3 mm.

[0040] In this embodiment, the slide mechanism 17 includes a first slide rail 171 arranged on the inner wall of the second shell 12, the lower end of the lower positioning column 313 can be slidably arranged in the first slide rail 171, and a wave-shaped channel 1710 is provided at the rear of the first slide rail 171 for placing the lower positioning column 313.

[0041] Among them, the diameter of the lower positioning column 313 is the same as the track spacing of the first slide rail 171, so that it can move in the corrugated channel 1710. The track spacing of the first slide rail 171 can range from 2 to 5 mm, and the specific values ​​can be 2 mm, 2.5 mm, 3.2 mm, 4 mm or 5 mm.

[0042] As an embodiment, the first slide rail 171 is parallel to the oblique side of the second shell 12 and connected to the upper and lower sides of the second shell 12, and the structure is more stable.

[0043] In this embodiment, the inner wall of the first housing 11 is provided with first limiting plates 161 on both sides of the push button notch 16 , and the first limiting plates 161 are parallel to the push button notch 16 ;

[0044] A second limiting plate 162 is provided at the inner edge of the top side of the first housing 11 close to the blade notch 15 .

[0045] The first limiting plate 161 cooperates with the second limiting plate 162 to limit the left-right shaking of the blade 32 when the blade push button 31 drives the blade 32 in and out of the blade slot 15 .

[0046] In another embodiment, Figure 4-6 As shown, a raised horizontal bar 3110 is provided at the front bottom end of the upper push button portion 311, and multi-stage gear steps 160 are symmetrically provided on both sides of the push button notch 16. The gear steps 160 cooperate with the horizontal bar 3110 to limit the blade push button 31 from retracting on its own.

[0047] Furthermore, the number of the gear steps 160 can be three, and the blade push button 31 can be limited to three different positions in cooperation with the horizontal bar 3110 .

[0048] The slide mechanism 17 includes a spring moving block 170 and two springs 174. The top surface of the spring moving block 170 is provided with a second slide rail 172, and the lower end of the lower positioning column 313 is slidably disposed in the second slide rail 172. The bottom surface of the spring moving block 170 is provided with two spring placement holes 173, and the middle of the spring placement holes 173 is provided with a downward-facing spring mounting column.

[0049] A plurality of limiting protrusions 175 and two spring placement areas 176 are provided on the inner wall of the second shell 12. The plurality of limiting protrusions 175 are arranged around the spring moving block 170 to limit the spring moving block 170 to be fixed. In specific implementation, the number of limiting protrusions 175 can be four, which are respectively arranged on the outside of the four sides of the spring moving block 170; the two spring placement areas 176 correspond to the positions of the two spring placement holes 173, the lower end of the spring 174 is placed in the spring placement area 176, and the upper end is sleeved on the spring mounting column.

[0050] The two springs 174 in the above embodiment ensure balanced force on the left and right sides of the blade push button 31 when pressed. The spring moving block 170 can be a rectangular parallelepiped, and the second slide rail 172 is a slot having the same diameter as the lower end of the lower positioning post 313. The depth of the slot is slightly greater than the length of the lower end of the lower positioning post 313 extending into the slot, allowing the lower positioning post 313 to move smoothly when placed within the slot.

[0051] The working process of the above-mentioned knife sharpener is as follows: when the knife sharpener is in use, the blade push button 31 can be used to directly push the blade 32 out of the blade notch 15. Since the blade 32 is restricted by the upward thrust of the horizontal bar 3110, the gear step 160, and the spring 174, the blade push button 31 can be restricted from retracting when the blade 32 is in use; when the blade 32 is to be retracted, the blade push button 31 is pressed downward. At this time, the horizontal bar 3110 of the blade push button 31 is lower than the gear step 160, avoiding the restriction of the gear step 160. The blade 32 can be retracted by pressing and pushing the blade push button 31 back.

[0052] In this embodiment, a plurality of third limiting plates 163 are provided on the inner wall of the first housing 11 on both sides of the push button slot 16 , and the third limiting plates 163 are parallel to the push button slot 16 ;

[0053] A fourth limiting plate 164 is provided at the inner edge of the top side of the first housing 11 close to the blade slot 15 .

[0054] The third limiting plate 163 cooperates with the fourth limiting plate 164 to limit the left-right shaking of the blade 32 when the blade push button 31 drives the blade 32 in and out of the blade slot 15 .

[0055] Based on the above embodiments, in this embodiment, the sharpening groove 14 is a U-shaped groove;

[0056] The first shell 11 and the second shell 12 are respectively provided with a V-shaped opening structure in the U-shaped groove. One side of the V-shaped opening structure is a straight solid side 141, and the other side is provided with a sharpening rod mounting portion 142;

[0057] The sharpening rod mounting portion 142 is provided with caps for fixing the sharpening rod 40 at both ends, with an inner bevel edge and no edge toward the outer side of the U-shaped groove;

[0058] Both ends of the sharpening rod 40 are fixed on the two caps respectively. The rear end of the sharpening rod 40 is located at the end of the solid edge 141 so that the rear portion of the sharpening rod 40 is exposed in the sharpening groove 14 .

[0059] Furthermore, a support rod is provided in the middle of the cap, and both ends of the sharpening rod 40 abut against the support rod in the middle of the caps at both ends to achieve stable fixation.

[0060] Furthermore, a V-shaped groove 143 surrounding the sharpening groove 14 is provided on the outer walls of the first shell 11 and the second shell 12. The V-shaped groove 143 is used to remind the user to limit the safety of the hand, which improves safety.

[0061] In this embodiment, the other end of the shell 1 is bent inward to form an annular hand grip 13. A reinforcing rib 130 is provided between the inner side wall of the hand grip 13 and the inner edge wall of the shell 1 to prevent the plastic shell from being deformed by injection molding and being deformed by the user.

[0062] One side of the housing 1 houses the sharpening groove 14 and blade notch 15. The other side bends inward to form a hollow, annular grip 13, which can be grasped or hung for storage. Furthermore, the grip 13 occupies two-thirds of the sharpener's overall surface area, making it easier for the user to hold.

[0063] In this embodiment, the top and bottom surfaces of the housing 1 are parallel planes, and the length of the top surface is greater than that of the bottom surface. One end of the top and bottom surfaces are connected by an inclined surface, and the other end is connected by an arc surface.

[0064] The push button notch 16 and the sliding slot mechanism 17 are both arranged parallel to the inclined surface.

[0065] The knife sharpener can distinguish the functional use surface and the placement surface by the length of the top surface and the bottom surface, which has a simple style and is intuitive and obvious. At the same time, since the top surface and the bottom surface of the knife sharpener are both flat, when the knife sharpener is not in use, the top and bottom surfaces of the knife sharpener can be placed flat on the table. When the knife sharpener is in use, the top surface of the knife sharpener is upward for sharpening or cutting, and the bottom surface can be placed stably on the table.

[0066] Other structures and operations of the knife sharpener according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0067] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0068] In the description of this specification, the reference terms "embodiment", "specific embodiment", "example", etc. mean that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention.

[0069] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined with each other in any suitable manner in any one or more embodiments or examples without interference or contradiction.

[0070] Materials or features may be combined with each other in any suitable manner in any one or more embodiments or examples without interference or inconsistency.

Claims

1. A knife sharpener, characterized in that: It comprises a housing (1) consisting of a first housing (11) and a second housing (12); A top surface of one end of the housing (1) is provided with a sharpening groove (14) and a blade notch (15); the first housing (11) is provided with a push button notch (16); a slide mechanism (17) is provided on the inner wall of the second housing (12); the slide mechanism (17) corresponds to the position of the push button notch (16); A blade push button (31) and a blade (32) connected to the blade push button (31) are provided in the inner cavity of the housing (1); the blade push button (31) is slidably arranged in the push button slot (16) and the slide mechanism (17) to drive the blade (32) to move in and out of the blade slot (15); Two sharpening rods (40) are arranged in the sharpening groove (14), and the two sharpening rods (40) are arranged in a cross-staggered manner to form a sharpening angle for sharpening a knife.

2. The knife sharpener according to claim 1, characterized in that: The blade push button (31) comprises an upper push button portion (311), a middle panel (312), a lower positioning column (313) and a limiting block (314); The upper push button portion (311) is provided at the middle portion of the top surface of the middle panel (312), and the upper end thereof extends out from the push button notch (16); The lower positioning column (313) and the limiting block (314) are arranged at the middle of the bottom surface of the middle panel (312), and the limiting block (314) is located behind the lower positioning column (313); the blade (32) is installed on the lower positioning column (313) through a through hole opened on the blade (32), and the rear end of the blade (32) contacts the front end of the limiting block (314); The lower end of the lower positioning column (313) passes through the through hole and is slidably arranged in the sliding groove mechanism (17).

3. The knife sharpener according to claim 2, characterized in that: The slide mechanism (17) comprises a first slide rail (171) provided on the inner wall of the second housing (12); the lower end of the lower positioning column (313) is slidably provided in the first slide rail (171); and a wave channel (1710) is provided at the rear of the first slide rail (171).

4. The knife sharpener according to claim 3, characterized in that: The inner wall of the first shell (11) is provided with a first limiting plate (161) on both sides of the push button slot (16), and the first limiting plate (161) is parallel to the push button slot (16); and the first shell (11) is provided with a second limiting plate (162) at the inner edge of the top side close to the blade slot (15).

5. The knife sharpener according to claim 2, characterized in that: The front bottom end of the upper push button portion (311) is provided with a raised horizontal bar (3110), and two sides of the push button notch (16) are symmetrically provided with multi-stage gear steps (160); The slide mechanism (17) comprises a spring moving block (170) and two springs (174); the top surface of the spring moving block (170) is provided with a second slide rail (172), and the lower end of the lower positioning column (313) is slidably arranged in the second slide rail (172); the bottom surface of the spring moving block (170) is provided with two spring placement holes (173), and the middle part of the spring placement hole (173) is provided with a downward spring installation column; A plurality of limiting protrusions (175) and two spring placement areas (176) are provided on the inner wall of the second shell (12); the plurality of limiting protrusions (175) are arranged around the spring moving block (170); the two spring placement areas (176) correspond to the positions of the two spring placement holes (173); the lower end of the spring (174) is placed in the spring placement area (176), and the upper end is sleeved on the spring mounting column.

6. The knife sharpener according to claim 5, characterized in that: The inner wall of the first shell (11) is provided with a plurality of third limiting plates (163) at intervals on both sides of the push button slot (16), and the third limiting plates (163) are parallel to the push button slot (16); and a fourth limiting plate (164) is provided at the inner edge of the top side of the first shell (11) close to the blade slot (15).

7. The knife sharpener according to any one of claims 1 to 6, characterized in that: The sharpening groove (14) is a U-shaped groove; the first shell (11) and the second shell (12) are respectively provided with a V-shaped opening structure in the U-shaped groove, one side of the V-shaped opening structure is a straight solid side (141), and the other side is provided with a sharpening rod mounting portion (142); Both ends of the sharpening rod mounting portion (142) are respectively provided with caps for fixing the sharpening rod (40), the inner side of which is a beveled edge and has no edge toward the outer side of the U-shaped groove; The two ends of the sharpening rod (40) are respectively fixed on the two cover caps, and the rear end of the sharpening rod (40) is located at the end position of the solid edge (141), so that the rear part of the sharpening rod (40) is exposed in the sharpening groove (14).

8. The knife sharpener according to claim 7, characterized in that: The outer walls of the first shell (11) and the second shell (12) are both provided with a V-shaped groove (143) surrounding the sharpening groove (14).

9. The knife sharpener according to claim 8, characterized in that: The other end of the shell (1) is bent inward to form an annular hand grip (13), and a reinforcing rib (130) is provided between the inner side wall of the hand grip (13) and the edge inner wall of the shell (1); the hand grip (13) occupies 2 / 3 of the entire area of ​​the knife sharpener.

10. The knife sharpener according to claim 1, characterized in that: The top surface and bottom surface of the housing (1) are parallel planes, and the length of the top surface is greater than the length of the bottom surface. One end of the top surface and the bottom surface are connected by an inclined surface, and the other end is connected by an arc surface. The push button notch (16) and the slide mechanism (17) are both arranged parallel to the inclined surface. The sharpening rod (40) is a ceramic sharpening rod, a steel sharpening rod or a diamond sharpening rod.

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