CN110815072A - Knife sharpener with movable knife sharpening opening - Google Patents
Knife sharpener with movable knife sharpening opening Download PDFInfo
- Publication number
- CN110815072A CN110815072A CN201911100250.1A CN201911100250A CN110815072A CN 110815072 A CN110815072 A CN 110815072A CN 201911100250 A CN201911100250 A CN 201911100250A CN 110815072 A CN110815072 A CN 110815072A
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- Prior art keywords
- sharpening
- knife
- rotating shaft
- component
- fixing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
- B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
- B24D15/08—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
- B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
- B24D15/08—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors
- B24D15/084—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors the sharpening elements being fitted to knife sheaths, holders or handles
Abstract
The invention provides a knife sharpener with a movable knife sharpening port, which comprises: knife sharpening frame, the slope sets up the part of whetting a knife on knife sharpening frame, characterized by: the grinding device also comprises a vertical rod component and a transverse rotating shaft which is fixed on the grinding knife rest and movably connected with the vertical rod component; the upright rod component can reciprocate left and right along with the rotation of the rotating shaft; the sharpening component and the upright rod assembly form a V-shaped sharpening opening, and when the upright rod assembly moves left and right in a reciprocating manner, the lowest end of the V-shaped sharpening opening can rise or fall along the length direction of the sharpening component. The invention has the beneficial effects that: when the upright rod moves relative to the position of the sharpening component, the lowest end of the V-shaped sharpening edge formed between the upright rod and the sharpening component can be lifted or lowered. The knife sharpening component can sharpen any position in the length direction, and the utilization rate of the knife sharpening component is improved. The knife sharpening components are arranged side by side without staggering, do not affect each other, are easy to operate, avoid edge curling of the knife edges and can sharpen the knife with the single-side knife edges.
Description
The technical field is as follows:
the invention relates to the field of sharpeners, in particular to a sharpener with a movable sharpening opening.
Background technology:
in the existing market, the knife sharpening component of the knife sharpener mainly has two kinds: one is a blade made of cemented carbide, which uses its hard edge to cut the blade. The other is a knife sharpening rod made of synthetic material, which utilizes the outer surface with grinding function to rub against the knife edge to make the knife sharper. The structure of the vertical knife sharpener is roughly as follows: two same knife sharpening components are arranged in tandem and in a crossed way, and a V-shaped knife sharpening edge is formed between the two knife sharpening components. When in use, the knife edge is pulled and pulled at the bottom of the V-shaped knife sharpening opening, so that the knife edge passes between the two mutually staggered knife sharpening components. No matter which side is ground, the opposite side of the knife sharpener with the structure is in contact friction with the opposite knife sharpening component, the force is improperly controlled, the edge curling is easily caused, and the knife sharpening effect is influenced. The sharpening edge of the sharpener is fixed, only a small section of the bottom of the sharpening edge plays a sharpening role on the sharpening part, and most other areas are few or even not used at all, so that the sharpening part is wasted.
The invention content is as follows:
in order to overcome the defects of the existing knife sharpener. The technical scheme adopted by the invention for solving the technical problems is as follows: a removable sharpener for a sharpening blade, comprising: knife sharpening frame, the slope sets up the part of whetting a knife on knife sharpening frame, characterized by: the grinding device also comprises a vertical rod component and a transverse rotating shaft which is fixed on the grinding knife rest and movably connected with the vertical rod component; the upright rod component can reciprocate left and right along with the rotation of the rotating shaft; the sharpening component and the upright rod assembly form a V-shaped sharpening opening, and when the upright rod assembly moves left and right in a reciprocating manner, the lowest end of the V-shaped sharpening opening can rise or fall along the length direction of the sharpening component.
The pole setting subassembly includes: the upright rod is vertically and fixedly arranged on the sliding block and is positioned behind the knife sharpening component; grooves or bulges which are matched with each other are arranged on the sliding block and the rotating shaft, and at least one of the bulges or the grooves is spiral; the sliding block is limited and can not rotate; when the rotating shaft rotates in situ, the spiral curved surface of the bulge or the groove can push the sliding block to move along the axis direction of the rotating shaft.
A rotating wheel is arranged at one end of the rotating shaft, and anti-skid grains are arranged on the periphery of the rotating wheel; the rotating shaft is connected to the knife grinding frame through a rotating shaft fixing assembly in a shaft coupling mode; the rotating shaft is provided with a limiting structure for preventing the rotating shaft from moving left and right, and the limiting structure is a convex block or a groove; the limiting structure is embedded with the rotating shaft fixing component or the knife grinding frame, so that the rotating shaft can be prevented from moving left and right; after the rotating shaft is assembled, the rotating shaft can rotate around the axis of the rotating shaft but cannot move left and right.
The rotating shaft fixing component comprises a screw, a fixing frame and/or a fixing sheet; the fixed frame is provided with a hole for coupling the rotating shaft; the limiting structures of the fixing piece and the rotating shaft are mutually embedded, so that the rotating shaft can be prevented from moving left and right.
The sharpening device comprises a sharpening frame and is characterized in that a fixing groove for placing a sharpening component is formed in the sharpening frame, the sharpening component is detachably arranged in the fixing groove, an opening of the fixing groove is upward, and a pressing buckle for fixing the sharpening component is arranged at the top end of the fixing groove.
The knife sharpening component is a knife sharpening blade and/or a knife sharpening rod; the sharpening blade and/or the sharpening rod are combined into a V shape or placed in an inverted V shape.
The two or two groups of the knife sharpening components are arranged in bilateral symmetry and are arranged in parallel in the front-back direction; the two upright rod assemblies are correspondingly arranged and are respectively arranged behind two or two groups of sharpening components, and the upright rods and the sharpening components on the same side form a V-shaped sharpening edge; two sections of spiral protrusions or grooves are correspondingly arranged on the rotating shaft, and the spiral directions of the two sections of protrusions or grooves are opposite.
A U-shaped positioning bone is arranged between two sections of spiral bulges or grooves corresponding to the rotating shaft on the knife grinding frame; the rotation axis passes U-shaped opening, is provided with the limit structure of mutual gomphosis between the U-shaped location bone with the U-shaped location, can avoid the rotation axis to remove about.
The two ends of the knife sharpening rod are provided with protruding parts for fixing, and the cross section of each protruding part perpendicular to the length direction is a regular polygon.
The cross section of the sharpening blade in the length direction is rectangular, and the two ends of the sharpening blade are provided with the same depressions or protrusions; the whole sharpening blade is plane-symmetrical in the length direction and the width direction.
The sliding block is provided with a guide block or a guide groove or a guide hole, and the back of the knife grinding frame is provided with a corresponding guide groove or a guide strip or a guide post.
The sharpener is also provided with a fixing device for placing a spare sharpening component.
The invention has the beneficial effects that: when the upright rod moves relative to the position of the sharpening component, the lowest end of the V-shaped sharpening edge formed between the upright rod and the sharpening component can be lifted or lowered. The knife sharpening component can sharpen any position in the length direction, and the utilization rate of the knife sharpening component is improved. Bilateral symmetry of both sides knife sharpening part is placed side by side, does not have crisscross, each other does not influence, easy operation avoids the cutting edge turn-up, can realize the unilateral simultaneously and whet a knife, can grind the cutter of unilateral cutting edge. The knife sharpening component is detachable, the front and the back, the inner side and the outer side of the knife sharpening component are convenient to reversely rotate and exchange for use, and the service life of the knife sharpening component is prolonged. The knife sharpener is provided with a spare knife sharpening component, so that the knife sharpener can be used for a long time without replacing the whole knife sharpening frame. The knife sharpening component can be a combination of a knife sharpening blade and a knife sharpening rod, different knife sharpening modes are provided, and fast sharpening and fine sharpening can be performed; the two ends of the knife sharpening rod are provided with protruding parts for fixing, the cross section of each protruding part perpendicular to the length direction is a regular polygon, and the protruding parts at the two ends can be fixed; after the knife grinding surface is abraded, the knife grinding rod can be rotated to replace the friction position for repeated use. One end of the rotating shaft is provided with a rotating wheel which is convenient to rotate the rotating shaft, the U-shaped supporting bone or the fixing plate is mutually embedded with the limiting structure of the rotating shaft, the rotating shaft can be prevented from moving left and right, and the U-shaped supporting bone can bear the torsion force from the vertical rod, so that the vertical rod is firmer.
Description of the drawings:
the invention will be further explained with reference to the figures and examples,
FIG. 1 is an exploded view schematically showing example 1 of the present invention;
FIG. 2 is a rear view schematically showing the structure of embodiment 1 of the present invention;
FIG. 3 is a schematic view of a partial top view of the structure of embodiment 1 of the present invention;
FIG. 4 is a partial cross-sectional view of the base structure of embodiment 1 of the present invention;
FIG. 5 is a schematic view showing a state of use of embodiment 1 of the present invention;
FIG. 6 is a schematic view of the present invention with threads on the slider replaced with lugs;
FIG. 7 is a rear exploded view of embodiment 2 of the present invention;
figure 8 is an exploded view of the pole assembly and the rotating shaft fixing assembly of embodiment 2 of the present invention;
FIG. 9 is a schematic view showing the structure of a sharpener bar according to example 2 of the present invention;
FIG. 10 is a rear view, partly in section, of embodiment 2 of the present invention;
FIG. 11 is a state diagram of use of embodiment 2 of the present invention;
in the figure:
1. a knife grinding frame, 101, a positioning bone, 102, a guide groove and 103, a U-shaped supporting bone;
2. a knife sharpening component, 21, a knife sharpening blade and 22, a knife sharpening rod;
3. a vertical rod component, 31 vertical rods, 32 sliding blocks, 3201 guide blocks and 3202 convex blocks;
4. a rotating shaft, a 401 rotating wheel, 402 threads and 403 limiting bones;
5. a sharpening component fixing assembly 51, a screw 52 and a pressing buckle;
6. a rotating shaft fixing component, a 61 screw, a 62 fixing sheet, a 63 fixing frame and a 64 guide post;
7. a non-slip mat;
8. a cutter;
A. and (4) a plane.
The specific implementation mode is as follows:
two embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the embodiments described herein are merely illustrative and explanatory of the invention and are not restrictive thereof.
In which like reference numerals refer to the same or similar parts or structures throughout the several views.
In addition, if a detailed description of the known art is not necessary for the features of the present invention, it is omitted. The words "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", and the like used in this patent description indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, which are in the directions of the drawings. The words "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
FIG. 1 is an exploded view schematically showing example 1 of the present invention; the knife sharpener of the present embodiment shown in fig. 1 comprises: the grinding tool rest comprises a grinding tool rest 1, a grinding blade 21, a vertical rod assembly 3, a rotating shaft 4, a grinding part fixing assembly 5, a rotating shaft fixing assembly 6 and an anti-slip pad 7. Wherein, the sharpening component fixing component 5 is composed of a screw 51 and a pressing buckle 52; the rotating shaft fixing assembly 6 is composed of a screw 61 and a fixing piece 62; the two sharpening components in the embodiment are two sharpening blades 21 which are symmetrical left and right and are arranged in parallel in the front-back direction; the tops of the two grinding blades 21 are far away, and the bottoms of the two grinding blades are close to each other and are in a V shape; the upright rod component 3 is composed of a slide block 32 and an upright rod 31 fixed on the slide block, and two upright rod components 3 are symmetrically arranged behind the sharpening blade 21.
The grinding tool rest 1 is provided with fixing grooves which are symmetrical left and right, have upward openings and are arranged in a V shape and are used for placing grinding blades 21; a transverse guide groove 102 and a positioning bone 101 for fixing the rotating shaft 4 are arranged at the back;
two threads 402 with opposite spiral directions (or two threads which are symmetrical to each other) are designed on the rotating shaft 4; one end of the rotating shaft 4 is provided with a rotating wheel 401; a limit bone 403 is designed at one side close to the rotating wheel 401; the periphery of the rotating wheel 401 is designed with anti-skid lines.
The two sliding blocks 32 of the left and right upright rod components 3 are both provided with a raised guide block 3201 and a thread; the screw threads on the two sliding blocks 32 have opposite screw directions and are respectively matched with the two sections of screw threads on the rotating shaft 4.
As shown in fig. 2, 3 and 4, the sharpening blade 21 is set in a fixing groove of the sharpening holder 1, and the top is fixed with a fixing screw 51 and a hold-down button 52. The two ends of the sharpening blade 21 are provided with symmetrical recesses for the fixing grooves and the pressing buckles 52 to be embedded and fixed so as to prevent the sharpening blade 21 from falling off. The rotation shaft 4 is transversely installed on the positioning bone 101 of the bracket 1 by the fixing screw 61 and the fixing piece 62. After assembly, the fixing plate 62 is sandwiched between the two limiting ribs 403, and forms a limiting structure which is mutually embedded with the rotating shaft 4, so that the rotating shaft 4 can be prevented from moving left and right. The upright rod assembly 3 is clamped between the sharpening frame 1 and the rotating shaft 4, and the two upright rods 31 are symmetrical left and right by taking the symmetrical plane A of the left sharpening blade 21 and the right sharpening blade 21 as a symmetrical plane. The two sliding blocks 32 project into the guide groove 102 towards the guide block 3201 on the side of the grinding carriage 1. The threads of the two sliders 32 on the side facing the rotating shaft 4 are respectively fitted to the two threads 402 of the rotating shaft 4. When the rotating wheel 401 is rotated, the helical curved surfaces of the two sections of threads 402 on the rotating shaft 4 respectively push the two slider assemblies 3 to synchronously move in opposite directions at the same time. The bottoms of the V-shaped grinding edges formed by the left and right upright rods 31 and the grinding blade 21 on the same side are raised or lowered simultaneously along the edge of the grinding blade 21.
In this embodiment, the slider 32 is tightly attached to the back surface of the grinder holder 1, and the slider 32 cannot rotate because the slider and the grinder holder form a planar fit and a fixed distance therebetween. The guide block 3201 on the slide block 32 extends into the guide groove 102 of the grinding tool holder 1 to form an embedded structure capable of sliding left and right, and the guide block 3201 can play a role in positioning in the vertical direction and can bear torsion from the upright rod 31 to prevent the slide block 32 from inclining. Likewise, the engagement structure can also be designed such that: the knife grinding frame is provided with a convex guide strip, and the sliding block is provided with a corresponding guide groove, so that the convex strip extends into the guide groove. Such an engagement between the slider 32 and the grinder rest 1 may also serve to restrict the rotation of the slider.
Further, as shown in fig. 6, the thread on the sliding block 32 may also be designed as a protrusion 3202, while the thread on the rotating shaft 4 is designed as a thread groove matching with the protrusion 3202. When the rotating shaft 4 rotates, the spiral curved surface of the thread groove pushes the protrusion 3202 to move, thereby driving the slider assembly 3 to move laterally.
Furthermore, as long as the sliding block (32) and the rotating shaft (4) are provided with grooves or bulges which are matched with each other, and one of the bulges or the grooves is spiral; the sliding block (32) is limited to rotate, and when the rotating shaft (4) rotates in situ, the spiral curved surface of the spiral protrusion or the groove can push the sliding block (32) to move along the axis direction of the rotating shaft (4).
In the above embodiment, the number of the sharpening blades 21 on the sharpener is 4: two sheets are arranged in the fixing grooves of the knife grinding frame 1, and the other two spare knife grinding sheets 21 are arranged at the bottom of the knife grinding frame 1 and supported and fixed by the anti-skid pad 7 arranged at the bottom. Furthermore, the spare knife sharpening component can also be arranged at other positions of the knife sharpener, so that the knife sharpening component is convenient for a user to replace and use.
As shown in fig. 5, in the present embodiment, if the cutter 8 passes through only one of the sharpening openings, one side of the blade is ground, so that a cutter with a single-side blade can be sharpened; if the tool 8 passes through the sharpening openings on both sides, both sides of the blade will be sharpened. In the sharpening process, sharpening components on two sides are not mutually influenced, and the sharpening device is easy to operate.
Fig. 7 is an exploded schematic view of embodiment 2 of the present invention, which includes the following main components: the sharpening device comprises a sharpening frame 1, a sharpening component 2, a vertical rod component 3, a rotating shaft 4, a sharpening component fixing component 5 and a rotating shaft fixing component 6. Wherein, the knife sharpening component 2 has two groups, each group is formed by matching a knife sharpening blade 21 and a knife sharpening rod 22; the two groups of knife sharpening components 2 are bilaterally symmetrical and are arranged in parallel in the front-back direction; the sharpening blades 21 in each group are close to the bottom of the sharpening rod 22, far from the top, have the same inclination angle in the vertical direction and are arranged in a V shape. The central lines of two symmetrical knife sharpening components in the length direction are positioned on the same plane. The sharpening unit fixing assembly 5 for fixing the sharpening unit 2 has three groups, each group is composed of a fixing screw 51 and a pressing buckle 52. Two sharpening blades 21 close to the symmetrical center in the two sharpening parts 2 are fixed by the same sharpening part fixing component 5. The upright rod components 3 are composed of sliding blocks 32 and upright rods 31 fixed on the sliding blocks, two upright rod components 3 are arranged and are symmetrically placed behind the knife sharpening components 2, and the symmetrical plane A of the upright rod components is the same as the symmetrical planes of the two groups of knife sharpening components 2.
As shown in fig. 7, 8, 9 and 10: the knife sharpening frame 1 is provided with a fixing groove for placing the knife sharpening component 2, and the opening of the fixing groove is upward. The rear of the blade holder 1 is provided with a U-shaped supporting bone 103. The center positions of both ends of the sharpening blade 21 and the sharpening rod 22 are provided with protrusions. The protrusions of the sharpening blades 21 are identical in top-bottom and symmetrical in left-right. After the assembly, the protruding parts are respectively embedded into the pressing buckle and the fixing groove of the knife sharpening frame 1, so that the knife sharpening component can be prevented from moving or falling off.
Two sections of threads 402 with opposite spiral directions (or left-right symmetry) are arranged on the rotating shaft 4, two circles of raised limiting ribs 403 are arranged between the two sections of threads, a rotating wheel 401 is designed at one end of the rotating shaft, and anti-skid stripes are designed on the periphery of the rotating wheel 401.
The sliding block 32 is provided with a thread and a guide hole through which the guide post 64 can pass; the screw threads on the left and right sliders have opposite screw directions and are respectively matched with the two sections of screw threads 402 on the rotating shaft 4.
The rotating shaft fixing assembly 6 is composed of a screw 61, a fixing frame 63 and a guide post 64, and the fixing frame 63 is provided with a hole for coupling the rotating shaft 4.
The rotating shaft 4 passes through the guide hole on the fixing frame 63 and is movably connected with the two upright rod assemblies 3 through threads.
Two guide posts 64 pass through the guide holes of the left and right sliders 32, and both ends of the guide posts are fixed on the fixing frame 63. The slide block 32 is oriented, and can bear the torsion from the upright rod 31, so that the slide block 32 is prevented from inclining and rotating.
The rotating shaft fixing component 6 fixes the rotating shaft 4 and the sliding block component 3 together at the back of the grinding tool rest 1 through a screw 61, the rotating shaft 4 is in a left-right transverse state, and the upright rod 31 is in a vertical state.
After assembly, as shown in fig. 10: the U-shaped supporting bone 103 on the sharpening frame 1 is clamped between the two limiting bones 403 on the rotating shaft 4 to form a limiting structure which is mutually embedded, so that the rotating shaft 4 can be prevented from moving left and right. While at the same time supporting the torque from the upright 31. The symmetry plane a of the left sharpening component 2 and the right sharpening component 2 is also the symmetry plane of the left upright rod 31 and the right upright rod 31. The two sections of threads 402 on the rotating shaft 4 are also left-right symmetric about the plane a. When the rotating shaft 4 is rotated, the vertical rods 31 on both sides synchronously move in opposite directions at the same time. The upright rod 31 and the bottom of the V-shaped sharpening edge formed by the sharpening sheet 21 or the sharpening rod 22 on the same side synchronously ascend or descend simultaneously.
Similarly, the limiting structure formed by the two limiting bones 403 on the rotating shaft 4 can also be regarded as a limiting groove, and the U-shaped supporting bone 103 extends into the limiting groove to form a limiting mechanism.
Furthermore, the rotating shaft 4 can also be provided with a limiting bone, and meanwhile, a limiting groove is formed in the U-shaped surface of the U-shaped supporting bone 103, so that the limiting bone extends into the limiting groove to form a limiting mechanism.
As shown in fig. 10 and 11, when the knife 8 is sharpened, the rotating shaft 4 is rotated to move the upright 31 behind the sharpening blades 21 for rapid sharpening by the two sharpening blades 21, or the rotating shaft 4 is rotated to move the upright 31 outward behind the sharpening rods 22 for fine sharpening by the two sharpening rods 22. Two knife sharpening modes are convenient for users to select. Meanwhile, the sharpening components 2 on the two sides are arranged side by side, so that mutual interference is avoided, and sharpening is more convenient.
In the two embodiments, the upright rod can be vertically erected behind the sharpening component, and can also be obliquely erected behind the sharpening component at a small angle, so that the cutter can be conveniently placed. The screws for fixing the knife sharpening component are all detachable. The knife sharpening component can be replaced, and the knife sharpening rack and other components can not be wasted. Meanwhile, the cross section of the sharpening blade in the length direction is rectangular, the same depressions or protrusions are designed at the two ends of the sharpening blade, and the sharpening blade is plane-symmetrical in the length direction and the width direction; the two ends of the sharpening blade can still be respectively embedded and fixed with the pressing buckle and the bottom of the fixing groove of the sharpening frame after the positions are exchanged up and down or left and right. Thus, the sharpening blade can be used repeatedly after being turned upside down or/and rotated left and right. Likewise, the cross-section of the projections at both ends of the sharpening rod perpendicular to the longitudinal direction may be designed as a regular polygon, for example: triangular, quadrilateral, pentagonal, hexagonal, etc. Referring to fig. 9, in the present embodiment, the cross section of the protrusion at both ends of the sharpener bar is a regular hexagon; after the sharpening surface of the sharpening rod is abraded, the sharpening rod can rotate by an angle for reuse; the service life of the knife sharpening rod is prolonged.
Specifically, the following description is provided: in the description of the above two embodiments, components or structures having the same function are uniformly named for clarity and understanding of the description of the present invention; for example, the left and right sliders have different structures but the same functions, and are collectively called sliders; the pressing buckle for fixing the knife sharpening component needs to be matched with the sharpening blade and the sharpening rod respectively in structure, but has the same function and is used for pressing and fixing the knife sharpening component, so the pressing buckle is called as a pressing buckle; accordingly, the sharpening unit fixing component, the positioning bone and the fixing frame are named according to the rule.
The symmetrical structure adopted in the above embodiments may be changed to an asymmetrical structure. For example, two threads on a rotating shaft, asymmetry is also true as long as the directions of rotation are opposite. The pole setting both can vertical direction setting, also can adopt the design of non-vertical direction: inclined at a certain angle with the vertical direction; the purpose of fully utilizing the knife sharpening component can be realized as long as a V-shaped knife sharpening edge is formed between the upright stanchion and the knife sharpening component. Meanwhile, the two adjacent sharpening components can also be combined into an inverted V shape with the top close and the bottom far. The upright stanchion and the sharpening component can form a movable V-shaped sharpening edge.
The embodiments of the present invention have been described above with reference to the accompanying drawings. It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made therein, and equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (11)
1. A removable sharpener for a sharpening blade, comprising: knife rest (1), slope sets up the part of whetting a knife (2) on knife rest (1), characterized by: the grinding device also comprises a vertical rod component (3) and a transverse rotating shaft (4) which is fixed on the grinding tool rest (1) and movably connected with the vertical rod component (3); the upright rod component (3) can reciprocate left and right along with the rotation of the rotating shaft (4); the knife sharpening component (2) and the upright rod component (3) form a V-shaped knife sharpening opening, and when the upright rod component (3) reciprocates left and right, the lowest end of the V-shaped knife sharpening opening can rise or fall along the length direction of the knife sharpening component (2).
2. The removable sharpener of claim 1, further comprising: the pole setting subassembly (3) includes: the knife sharpening device comprises a vertical rod (31) and a sliding block (32), wherein the vertical rod (31) is vertically and fixedly arranged on the sliding block (32) and is positioned behind the knife sharpening component (2); grooves or bulges which are matched with each other are arranged on the sliding block (32) and the rotating shaft (4), and at least one of the bulges or the grooves is spiral; the slide block (32) is limited and can not rotate; when the rotating shaft (4) rotates in situ, the spiral curved surface of the bulge or the groove can push the sliding block (32) to move along the axis direction of the rotating shaft (4).
3. The removable sharpener of claim 2, further comprising: one end of the rotating shaft (4) is provided with a rotating wheel (401), and the periphery of the rotating wheel is provided with anti-skid grains; the rotating shaft (4) is coupled to the knife grinding frame (1) through a rotating shaft fixing component (5); the rotating shaft (4) is provided with a limiting structure for preventing the rotating shaft (4) from moving left and right, and the limiting structure is a convex block or a groove; the limiting structure is embedded with the rotating shaft fixing component (5) or the knife grinding frame, so that the rotating shaft can be prevented from moving left and right; after the rotating shaft (4) is assembled, the rotating shaft (4) can rotate around the axis of the rotating shaft but cannot move left and right.
4. The removable sharpener of claim 3, further comprising: the rotating shaft fixing component (5) comprises a screw (61), a fixing frame (63) and/or a fixing plate (62); the fixed frame (63) is provided with a hole for coupling the rotating shaft (4); the fixing piece (62) is embedded with the limiting structure of the rotating shaft (4) to prevent the rotating shaft (4) from moving left and right.
5. The removable sharpener of claim 4, further comprising: the sharpening device is characterized in that a fixing groove for placing a sharpening component (2) is formed in the sharpening frame (1), the sharpening component (2) is detachably arranged in the fixing groove, an opening of the fixing groove faces upwards, and a pressing buckle (52) for fixing the sharpening component (2) is arranged at the top end of the fixing groove.
6. The removable sharpener of any one of claims 2-5, further comprising: the knife sharpening component (2) is a knife sharpening sheet (21) and/or a knife sharpening rod (22); the sharpening blade (21) and/or the sharpening rod (22) are combined into a V shape or placed in an inverted V shape.
7. The removable sharpener of claim 6, further comprising: the two or two groups of the knife sharpening components are arranged in bilateral symmetry and are arranged in parallel in the front-back direction; the two upright rod assemblies (3) are correspondingly arranged and are respectively arranged behind two or two groups of sharpening components (2), and the upright rod (31) and the sharpening component (2) on the same side form a V-shaped sharpening edge; two sections of spiral bulges or grooves are correspondingly arranged on the rotating shaft (4), and the spiral directions of the two sections of bulges or grooves are opposite.
8. The removable sharpener of claim 7, wherein: a U-shaped positioning bone (101) is arranged between two sections of spiral bulges or grooves of the knife grinding frame (1) corresponding to the rotating shaft (4); the rotating shaft (4) penetrates through the U-shaped opening, and a limiting structure which is mutually embedded is arranged between the rotating shaft and the U-shaped positioning bone, so that the rotating shaft can be prevented from moving left and right.
9. The removable sharpener of claim 8, further comprising: and two ends of the knife sharpening rod (22) are provided with protruding parts for fixing, and the cross section of each protruding part perpendicular to the length direction is a regular polygon.
10. The removable sharpener of claim 9, further comprising: the cross section of the sharpening blade in the length direction is rectangular, and the two ends of the sharpening blade are provided with the same depressions or protrusions; the whole sharpening blade is plane-symmetrical in the length direction and the width direction.
11. The removable sharpener of any one of claims 8 to 10, further comprising: the sliding block (32) is provided with a guide block or a guide groove or a guide hole, and the back of the knife grinding frame is provided with a corresponding guide groove or a guide bar or a guide post.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911100250.1A CN110815072B (en) | 2019-11-12 | 2019-11-12 | Knife sharpener with movable knife sharpening opening |
| PCT/CN2020/117786 WO2021093473A1 (en) | 2019-11-12 | 2020-09-25 | Knife sharpener having movable knife sharpening opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911100250.1A CN110815072B (en) | 2019-11-12 | 2019-11-12 | Knife sharpener with movable knife sharpening opening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110815072A true CN110815072A (en) | 2020-02-21 |
| CN110815072B CN110815072B (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911100250.1A Active CN110815072B (en) | 2019-11-12 | 2019-11-12 | Knife sharpener with movable knife sharpening opening |
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| Country | Link |
|---|---|
| CN (1) | CN110815072B (en) |
| WO (1) | WO2021093473A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112222960A (en) * | 2020-10-17 | 2021-01-15 | 张喜清 | Graver sharpener |
| WO2021093473A1 (en) * | 2019-11-12 | 2021-05-20 | 深圳市黄金庄园科技有限公司 | Knife sharpener having movable knife sharpening opening |
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| CN2069333U (en) * | 1990-01-15 | 1991-01-16 | 刘海明 | Multipurpose knife grinder |
| CN1796052A (en) * | 2004-08-20 | 2006-07-05 | 鲁道夫·科普 | Precision sharpener tool |
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| CN207139440U (en) * | 2017-08-18 | 2018-03-27 | 李永亮 | A kind of electric knife grinder |
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| WO2021093473A1 (en) * | 2019-11-12 | 2021-05-20 | 深圳市黄金庄园科技有限公司 | Knife sharpener having movable knife sharpening opening |
| CN112222960A (en) * | 2020-10-17 | 2021-01-15 | 张喜清 | Graver sharpener |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021093473A1 (en) | 2021-05-20 |
| CN110815072B (en) | 2021-09-14 |
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