Knife sharpener capable of self-adapting to knife sharpening angle

Abstract

The utility model provides a knife sharpener capable of self-adapting to the knife sharpening angle of a knife. The knife sharpener capable of self-adapting to the knife sharpening angle comprises a containing shell formed by splicing a first shell and a second shell, a knife sharpening notch is formed in the top of the containing shell, a first blade clamping strip is rotationally arranged on the rear side of one end of an inner cavity of the containing shell, and a second blade clamping strip is rotationally arranged on the front side of the other end of the inner cavity of the containing shell. According to the knife sharpener capable of self-adapting to the knife sharpening angle, when one side of the first blade clamping strip is bounced off, the second blade clamping strip is bounced off in the opposite direction at the same rotation angle under the driving of the rotating force of the gear, it can be guaranteed that the included angle is always kept in center equivalence, and it is guaranteed that the situation of large and small cutting edges cannot occur during knife sharpening; the elastic force applied to the two sides during knife sharpening is the same, it is guaranteed that a knife is sharpened under the condition that the two blade clamping strips have the same clamping force all the time, and the knife sharpening stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of knife sharpener, especially to a kind of knife sharpener of self-adaptive tool grinding angle. BACKGROUND

[0002] Knife sharpener refers to a kind of scientific, practical, efficient and convenient knife sharpener, which is suitable for various kitchen knives, outdoor knives and scissors, etc., such as Chinese patent CN213258495U discloses a kind of knife sharpener, the technical scheme, the opening angle of "scissors" type knife rest can be adjusted by the control of adjusting mechanism, so that it can polish different thickness of tool.

[0003] But the knife sharpener, its springing mechanism only has the combination of simple spring and blade strip, when sharpening, the blade strip can only be sprung to one side when tool is not accurately placed, the other side cannot be sprung at the same time, resulting in that only one side of cutting edge is sharpened, which causes poor sharpening effect, and the time consumed in sharpening operation is relatively long, and subsequent use is easily affected.

[0004] Therefore, it is necessary to provide a kind of knife sharpener of self-adaptive tool grinding angle to solve the above technical problems. SUMMARY

[0005] The utility model provides a kind of knife sharpener of self-adaptive tool grinding angle, solve the problem that only one side of cutting edge is sharpened when tool is not accurately placed during sharpening.

[0006] To solve the above technical problems, the knife sharpener of self-adaptive tool grinding angle provided by the utility model includes a containing shell composed of a first shell and a second shell, a grinding slot is formed in the top of the containing shell, a first blade clamping strip is rotatably arranged at the rear side of one end of the inner cavity of the containing shell, a second blade clamping strip is rotatably arranged at the front side of the other end of the inner cavity of the containing shell, the opposite sides of the first blade clamping strip and the second blade clamping strip are both movably extended to the inner cavity of the grinding slot, and a grinding blade is fixedly connected, the inner cavity of the containing shell is provided with a transmission structure for driving the first blade clamping strip to reversely deviate when the second blade clamping strip deviates.

[0007] Preferably, the inner wall surface of the second shell is fixedly connected with a plurality of clamping columns, and the inner wall surface of the first shell is fixedly connected with a plurality of clamping barrels matched with the clamping columns.

[0008] Preferably, a plurality of first reinforcing ribs are fixedly connected between the side wall of the clamping column and the inner wall surface of the second shell, and a plurality of second reinforcing ribs are fixedly connected between the side wall of the clamping barrel and the inner wall surface of the first shell.

[0009] Preferably, positioning posts are fixedly connected to the inner walls of both the first housing and the second housing, positioning holes are provided on the inner walls of both the first housing and the second housing, and an anti-slip pad is fixedly connected to the bottom of the receiving shell.

[0010] Preferably, both ends of the inner cavity of the receiving shell are fixedly connected to a fixing groove, and springs are provided between the outer side of the second blade clip and the outer end of the inner wall of the fixing groove at the same end, and between the outer side of the first blade clip and the outer end of the inner wall of the fixing groove at the same end. Limiting posts adapted to the springs are provided on the surfaces of the second blade clip and the first blade clip.

[0011] Preferably, both the second blade retainer and the first blade retainer have grooves on their surfaces that are adapted to the grinding blade, and both the second blade retainer and the first blade retainer have screws that abut against the surface of the grinding blade.

[0012] Preferably, the transmission structure includes a half-tooth component and a gear, the gear being fixedly connected to the bottom end of the second blade clip, and the half-tooth component being fixedly connected to the bottom end of the first blade clip and meshing with the gear.

[0013] Compared with related technologies, the tool sharpener with adaptive tool sharpening angle provided by this utility model has the following beneficial effects:

[0014] This invention provides a sharpening tool with an adaptive blade sharpening angle. By simultaneously opening one side of the first blade catch and, driven by the rotation of a gear, opening the second blade catch at the same rotation angle in the opposite direction, the included angle remains centered, preventing uneven cutting edges during sharpening. This ensures that the force applied to both sides is equal during sharpening, guaranteeing that the tool is always sharpened under the same clamping force from both blade catches. This increases sharpening stability, allows the sharpening angle to better fit the blade edge, improves sharpening efficiency, reduces sharpening time, and facilitates subsequent work. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of the tool sharpener with adaptive tool sharpening angle provided by this utility model;

[0016] Figure 2 for Figure 1 The diagram shows the structural schematics of the first and second housings.

[0017] Figure 3 for Figure 1 The diagram shows the structure of the first housing and the second blade retainer.

[0018] Figure 4 forFigure 1 The diagram shows the structure of the first blade retainer and the second blade retainer.

[0019] The following are the labeling elements in the diagram: 1. Housing; 101. Grinding blade; 102. Spring; 201. Positioning pin; 202. Positioning hole; 203. Limiting pin; 204. Housing positioning hole; 1001. Fixing groove; 1002. Slot; 1003. Grinding blade slot; 2. First housing; 3. Second housing; 4. Second blade retainer; 5. First blade retainer; 6. Screw fastener; 7. Anti-slip pad; 8. Grip slot; 9. Snap-fit ​​pin; 10. Snap-fit ​​cylinder; 11. First reinforcing rib; 12. Second reinforcing rib; 13. Gear; 14. Half gear; 15. Indicator. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of a preferred embodiment of the tool sharpener with adaptive tool sharpening angle provided by this utility model; Figure 2 for Figure 1 The diagram shows the structural schematics of the first and second housings. Figure 3 for Figure 1 The diagram shows the structure of the first housing and the second blade retainer. Figure 4 for Figure 1 The diagram shows the structure of the first and second blade retainers. The sharpener, capable of adapting to the sharpening angle, includes a housing 1 composed of a first housing 2 and a second housing 3. A sharpening groove 1003 is provided on the top of the housing 1. A first blade retainer 5 is rotatably mounted on the rear side of one end of the inner cavity of the housing 1, and a second blade retainer 4 is rotatably mounted on the front side of the other end of the inner cavity of the housing 1. A gripping groove 8 is provided on the housing 1, and an indicator 15 is provided on the surface of the housing 1 to indicate the angle during the sharpening process.

[0022] The opposite sides of the first blade retainer 5 and the second blade retainer 4 extend movably into the inner cavity of the grinding groove 1003 and are fixedly connected to the grinding blade 101. The inner cavity of the housing 1 is provided with a transmission structure that drives the first blade retainer 5 to deflect in the opposite direction when the second blade retainer 4 deflects.

[0023] The transmission structure includes a half-tooth component 14 and a gear 13. The gear 13 is fixedly connected to the bottom end of the second blade clip 4, and the half-tooth component 14 is fixedly connected to the bottom end of the first blade clip 5 and meshes with the gear 13.

[0024] The bottom of the first blade retainer 5 and the second blade retainer 4 are provided with half-tooth parts 14 and gears 13 with the same parameters and dimensions, that is, the module, pressure angle, number of teeth, base circle and other parameters are the same, and they mesh with each other in a fixed position.

[0025] Both ends of the inner cavity of the housing 1 are fixedly connected to the fixing groove 1001. Springs 102 are provided between the outer side of the second blade clip 4 and the outer end of the inner wall of the fixing groove 1001 at the same end, and between the outer side of the first blade clip 5 and the outer end of the inner wall of the fixing groove 1001 at the same end.

[0026] Both the second blade retainer 4 and the first blade retainer 5 have limiting posts 203 adapted to the spring 102 on their surfaces.

[0027] The two springs 102 have the same parameters, namely, the wire diameter, number of turns, outer diameter, length, and spring constant of the springs 102 are the same.

[0028] Insert the grinding blade 101 into the blade slots 1002 on the second blade holder 4 and the first blade holder 5 respectively, and then use the bolt fastener 6 to press into the blade holder to fix the grinding blade 101 on the blade holder.

[0029] Align the positioning hole 202 on the second blade clip 4 with the blade clip positioning post 201 on the first housing 2 and insert it. Align the inner diameter of the spring 102 with the limiting post 203 on the second blade clip 4 and insert it. Compress the other end of the spring 102 against the edge of the fixing groove 1001 on the first housing 2. Then align the positioning hole 202 on the first blade clip 5 with the blade clip positioning post 201 on the second housing 3 and insert it. Align the inner diameter of the spring 102 with the limiting post 203 on the first blade clip 5 and insert it. Compress the other end of the spring 102 against the edge of the fixing groove 1001 on the second housing 3.

[0030] The first housing 2 and the second housing 3 are pressed together by the combination of the column and the hole, and the anti-slip pad 7 is attached to complete the product assembly.

[0031] The second blade retainer 4 mounted on the first housing 2 and the first blade retainer 5 mounted on the second housing 3 are provided with gears 13 and half-tooth pieces 14 with the same parameters. Under the elastic force of the spring 102, the second blade retainer 4 and the first blade retainer 5 are fixed on the housing cover. Through the pressing of the first housing 2 and the second housing 3, the gears 13 and half-tooth pieces 14 on the two blade retainers mesh with each other at a fixed reset angle.

[0032] When sharpening the knife, the blade contacts the left and right sharpening blades 101. The downward force of the blade causes the second blade retainer 4 and the first blade retainer 5 to move around the blade retainer positioning post 201, respectively. After compressing the spring 102, they spring back in opposite directions. At the same time, two gears 13 and half-tooth pieces 14 with the same parameters on the second blade retainer 4 and the first blade retainer 5 mesh with each other, so that the included angle of the two blade retainers springing back around the axis is the same.

[0033] Under the same force from the two springs 102, the included angle force received by both sides of the cutting edge of the knife is kept the same during sharpening, so that the angle of the cutting edge of the knife basically matches the adaptive angle of the sharpener of this utility model, which greatly improves the sharpening efficiency.

[0034] The inner wall of the second housing 3 is fixedly connected with several snap-fit ​​posts 9, and the inner wall of the first housing 2 is fixedly connected with several snap-fit ​​cylinders 10 that are adapted to the snap-fit ​​posts 9.

[0035] A number of first reinforcing ribs 11 are fixedly connected between the side wall of the snap-fit ​​post 9 and the inner wall of the second housing 3, and a number of second reinforcing ribs 12 are fixedly connected between the side wall of the snap-fit ​​cylinder 10 and the inner wall of the first housing 2.

[0036] Positioning posts 201 are fixedly connected to the inner walls of the first shell 2 and the second shell 3. The inner walls of the first shell 2 and the second shell 3 are provided with shell positioning holes 204. Anti-slip pads 7 are fixedly connected to the bottom of the receiving shell 1.

[0037] Both the second blade retainer 4 and the first blade retainer 5 have slots 1002 that are adapted to the grinding blade 101 on their surfaces. Both the second blade retainer 4 and the first blade retainer 5 have screws 6 that detachably contact the surface of the grinding blade 101.

[0038] The working principle of the self-adaptive tool sharpening angle sharpener provided by this utility model is as follows:

[0039] The second blade retainer 4 mounted on the first housing 2 and the first blade retainer 5 mounted on the second housing 3 are equipped with gears 13 and half-tooth pieces 14 with the same parameters. Under the elastic force of the spring 102, the second blade retainer 4 and the first blade retainer 5 are fixed on the housing cover. Through the pressing of the first housing 2 and the second housing 3, the gears 13 and half-tooth pieces 14 on the two blade retainers mesh with each other at a fixed reset angle. When sharpening the blade, the blade contacts the sharpening blades 101 on the left and right sides. The downward force of the blade will cause the second blade retainer 4 and the first blade retainer 5 to move around the blade retainer positioning post 201 respectively. After compressing the spring 102, they will spring open in the opposite direction. At the same time, the two gears 13 and half-tooth pieces 14 with the same parameters on the second blade retainer 4 and the first blade retainer 5 mesh with each other, so that the included angle of the left and right blade retainers springing open around the axis is the same. Under the action of the same force of the springs 102 on both sides, the included angle force received by both sides of the blade edge is the same during sharpening, so that the angle of the blade edge is basically consistent with the adaptive angle of the sharpener of this utility model, which greatly improves the sharpening efficiency.

[0040] Compared with related technologies, the tool sharpener with adaptive tool sharpening angle provided by this utility model has the following beneficial effects:

[0041] By simultaneously opening the second blade retainer 4 on one side, and driven by the rotation of gear 13 and half-tooth component 14, the first blade retainer 5 opens in the opposite direction at the same rotation angle. This ensures that the included angle remains centered and equal, preventing uneven cutting edges during sharpening. It also ensures that the spring force on both sides is the same during sharpening, guaranteeing that the tool is always sharpened under the same clamping force of the two blade retainers. This increases the stability of sharpening, makes the sharpening angle fit more closely to the cutting edge, improves sharpening efficiency, reduces the time spent on sharpening operations, and facilitates subsequent work.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A knife sharpener which can adapt the sharpening angle of the knife, comprising a containing case (1) which is composed of a first case (2) and a second case (3) which are spliced, characterized in that: The top of the accommodating shell (1) is provided with a knife sharpening notch (1003), the rear side of one end of the inner cavity of the accommodating shell (1) is rotatably provided with a first blade clamping strip (5), the front side of the other end of the inner cavity of the accommodating shell (1) is rotatably provided with a second blade clamping strip (4), the opposite sides of the first blade clamping strip (5) and the second blade clamping strip (4) are movably extended to the inner cavity of the knife sharpening notch (1003), and the first blade clamping strip (5) and the second blade clamping strip (4) are fixedly connected with a knife sharpening blade (101), and the inner cavity of the accommodating shell (1) is provided with a transmission structure which drives the first blade clamping strip (5) to be reversely deviated when the second blade clamping strip (4) is deviated.

2. The self-adaptable angle sharpener of claim 1, wherein, The inner wall surface of the second shell (3) is fixedly connected with a plurality of clamping columns (9), and the inner wall surface of the first shell (2) is fixedly connected with a plurality of clamping barrels (10) matched with the clamping columns (9).

3. The self-adaptable angle sharpener of claim 2, wherein, The side wall of the clamping column (9) and the inner wall surface of the second shell (3) are fixedly connected with a plurality of first reinforcing ribs (11), and the side wall of the clamping barrel (10) and the inner wall surface of the first shell (2) are fixedly connected with a plurality of second reinforcing ribs (12).

4. The self-adaptable angle sharpener of claim 1, wherein, The inner wall surfaces of the first shell (2) and the second shell (3) are fixedly connected with positioning columns (201), and the inner wall surfaces of the first shell (2) and the second shell (3) are provided with shell positioning holes (204), and the bottom of the accommodating shell (1) is fixedly connected with an anti-skid pad (7).

5. The self-adapting angle sharpener of claim 1, wherein, Both ends of the inner cavity of the accommodating shell (1) are fixedly connected with fixed grooves (1001), the outer side surface of the second blade clamping strip (4) and the outer end of the inner wall of the fixed groove (1001) at the same end and the outer side surface of the first blade clamping strip (5) and the outer end of the inner wall of the fixed groove (1001) at the same end are provided with springs (102), and the surfaces of the second blade clamping strip (4) and the first blade clamping strip (5) are provided with limiting columns (203) matched with the springs (102).

6. The self-adapting angle sharpener of claim 5, wherein, The surfaces of the second blade clamping strip (4) and the first blade clamping strip (5) are provided with clamping grooves (1002) matched with the knife sharpening blade (101), and the surfaces of the second blade clamping strip (4) and the first blade clamping strip (5) are detachably provided with screw fasteners (6) abutting the surface of the knife sharpening blade (101).

7. The self-adapting angle sharpener of claim 1, wherein, The transmission structure comprises a half-tooth piece (14) and a gear (13), the gear (13) is fixedly connected to the bottom end of the second blade clamping strip (4), and the half-tooth piece (14) is fixedly connected to the bottom end of the first blade clamping strip (5) and engages with the gear (13).

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