Knife sharpener

By designing a sharpener with electric push rod and rotating rod, the problem of inconvenience in replacing whetstones with existing sharpeners is solved, and the rapid replacement of whetstones and the efficiency of use is improved.

CN222903416UActive Publication Date: 2025-05-27RICAI COMPOSITE PLASTIC(SHENZHEN) CO LTD
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Patent Information

Application Number
CN202421887151.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-06
Publication Date
2025-05-27
Estimated Expiration
2034-08-06

AI Technical Summary

Technical Problem

There are inconveniences when replacing whetstones in existing sharpeners.

Method used

A sharpener including mounting plate, electric push rod, rotary rod and clamp is designed. The rotation rod and clamp movement are driven by the telescopic pull of the electric push rod to achieve rapid replacement of the whetstone.

Benefits of technology

It realizes rapid replacement of whetstones, improving the efficiency and convenience of the use of the sharpener.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of knife sharpening equipment, and discloses a knife sharpener which comprises an installation plate, a cooling assembly is arranged on the bottom side of the installation plate, a water storage bin is fixedly connected to the bottom side of the installation plate, a filtering assembly is arranged in the water storage bin, and a plurality of evenly-distributed supporting columns are fixedly connected to the bottom of the installation plate. Two fixing plates are slidably connected to the top of the mounting plate, electric push rods are fixedly connected to the interiors of the fixing plates, rotating rods are rotatably connected to the upper side and the lower side of one end of the telescopic end of each electric push rod, supporting rods are rotatably connected to one ends of the rotating rods, and first clamping plates are fixedly connected to one ends of the supporting rods. According to the knife grinder, the first clamping plate moves in the reverse direction so that the first clamping plate does not clamp the knife stone any more, then the knife stone can be rapidly replaced, the water pump drives water flow to move and spray out of the spray head, and the sprayed water flow can cool a blade and clean chippings generated during grinding.
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Description

Technical Field

[0001] The utility model relates to the technical field of knife sharpening equipment, in particular to a knife sharpener. Background Technique

[0002] A knife sharpener is a tool used for sharpening knives, and is used for grinding and trimming knives such as kitchen knives, kitchen cleavers, and scissors. It can grind the blade sharper through a grindstone, grinding wheel or other grinding materials to restore its cutting effect.

[0003] After retrieval, the Chinese patent publication number: CN219805942U discloses a knife sharpener, which includes a bottom plate, a sharpening plate, a knife plate moving cart and a tool extrusion screw. Limiting plates are welded at the four end points of the upper surface of the knife plate moving cart. Capsule-shaped holes are opened inside the limiting plates. There are two sharpening plates, and a grindstone is fixed on one side of the sharpening plate. A limiting rod is welded on the other side of the sharpening plate. A spring is nested outside the limiting rod, and one end of the limiting rod penetrates through the capsule-shaped hole. A frame limiting rail is fixed at the center of the upper surface of the bottom plate. A vehicle roller is movably installed inside the knife plate moving cart through a rotating shaft. When grinding the blade, the tool is fixed between the two vertical plates, and the tool is squeezed and fixed by the tool extrusion screw. When grinding, directly push and pull the vehicle push plate of the knife plate moving cart back and forth, and the knife plate moving cart can drive the sharpening plate above it to grind the blade, without holding the tool by hand, which is safer and more practical. However, the grindstone inside the device is fixedly connected to one side of the sharpening plate, which is inconvenient when the grindstone needs to be replaced. Therefore, a knife sharpener is proposed to solve the above problems. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a knife sharpener, aiming to improve the problem that the knife sharpener in the prior art is not convenient to replace the grindstone.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a knife sharpener, including a mounting plate, a cooling component is arranged on the bottom side of the mounting plate, a water storage bin is fixedly connected to the bottom side of the mounting plate, a filtering component is arranged inside the water storage bin, a plurality of uniformly distributed support columns are fixedly connected to the bottom of the mounting plate, two fixing plates are slidably connected to the top of the mounting plate, an electric push rod is fixedly connected inside the fixing plate, rotating rods are rotatably connected to the upper and lower sides of one end of the telescopic end of the electric push rod, a support rod is rotatably connected to one end of the rotating rod, a clamping plate one is fixedly connected to one end of the support rod, a rubber pad is fixedly connected to one side of the clamping plate one, and grindstones are abutted against each other on the opposite sides of adjacent rubber pads. A fixing seat is arranged on the top of the mounting plate.

[0006] Through the above technical scheme, the movement of the telescopic end of the electric push rod drives the two clamping plates one to move, so that the two clamping plates one clamp and fix the grindstone.

[0007] Further, the cooling component includes a water pump fixedly connected to the left side of the bottom of the mounting plate. Both the input end and the output end of the water pump are fixedly connected with water pipes. One end of one of the water pipes is fixedly connected to the inner side of the bottom of the water storage bin, one end of the other water pipe is arranged on the top of the mounting plate, and a spray head is fixedly connected to one end of the other water pipe.

[0008] Through the above technical solution, the water pump can drive the water flow to spray out from the spray head to cool the blade during grinding.

[0009] Further, the filtering component includes a filter plate slidably connected inside the water storage bin. A moving shaft is slidably connected inside one side of the water storage bin. A push plate is fixedly connected to the outer periphery of the moving shaft. A first spring is sleeved on the outer periphery of the moving shaft. One end of the first spring abuts against one side of the push plate, and the other end of the first spring abuts against the inner side of one side of the water storage bin.

[0010] Through the above technical solution, the filter plate can filter impurities in the water flow, and the filtered water flow can be reused.

[0011] Further, the other end of the support rod is fixedly connected with a slider. Two sliding grooves are formed inside the fixed plate, and the slider is slidably connected inside the sliding grooves.

[0012] Through the above technical solution, the slider slides inside the sliding groove to limit the movement of the support rod.

[0013] Further, a limiting plate is fixedly connected to one side of the filter plate, and the limiting plate is slidably connected inside the water storage bin.

[0014] Through the above technical solution, the limiting plate is used to limit the movement of the filter plate.

[0015] Further, a guide rail is fixedly connected to the top side of the mounting plate. The fixed seat is slidably connected to the top of the guide rail. A hydraulic rod is fixedly connected to the top side of the mounting plate, and one end of the hydraulic rod is fixedly connected to one side of the fixed seat.

[0016] Through the above technical solution, the hydraulic rod can push the fixed seat to move on the top of the guide rail.

[0017] Further, a bidirectional threaded rod is rotatably connected inside the mounting plate. One end of the bidirectional threaded rod is fixedly connected with a turntable. A guide rod is fixedly connected inside the mounting plate. Two moving blocks are fixedly connected to the bottom of the fixed plate. The moving blocks are slidably connected inside the mounting plate. One of the moving blocks is threadedly connected to the outer periphery of the bidirectional threaded rod, and the other moving block is slidably connected to the outer periphery of the guide rod.

[0018] Through the above technical solution, rotating the turntable causes the bidirectional threaded rod to rotate and enables the two fixing plates to drive the two grindstones to move towards each other respectively.

[0019] Furthermore, two clamping plates II are slidably connected inside the fixed seat. A plurality of uniformly distributed spring II are fixedly connected to one side of the clamping plate II, and one end of the spring II is fixedly connected to one side inside the fixed seat.

[0020] Through the above technical solution, a plurality of spring II push the two clamping plates II to move towards each other, and the blade can be fixed inside the fixed seat.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the telescopic end of the electric push rod extends to drive the rotating rod to rotate. The rotation of the rotating rod causes the clamping plate I to move, so that the clamping plate I clamps and fixes the grindstone. When the grindstone needs to be replaced, the electric push rod can be contracted to make the clamping plate I move in the reverse direction, so that the clamping plate I no longer clamps the grindstone, and then the grindstone can be quickly replaced.

[0023] 2. In the utility model, the water pump drives the water flow to move and spray out from the nozzle. The sprayed water flow can cool the blade during grinding and clean the debris generated during grinding. The sprayed water flow flows through the mounting plate and into the water storage bin. The filter plate inside the water storage bin can filter the water flow, and the filtered water flow can be reused. The filter plate can be taken out for cleaning to maintain the filtering effect. Description of the Drawings

[0024] Figure 1 is a three-dimensional schematic diagram of a knife sharpener proposed by the utility model;

[0025] Figure 2 is a structural schematic diagram of the fixing plate of a knife sharpener proposed by the utility model;

[0026] Figure 3 is a structural schematic diagram of the water pump of a knife sharpener proposed by the utility model;

[0027] Figure 4 is a structural schematic diagram of the water storage bin of a knife sharpener proposed by the utility model;

[0028] Figure 5 is Figure 4 the enlarged view at A in

[0029] Figure 6 is a structural schematic diagram of the bidirectional threaded rod of a knife sharpener proposed by the utility model;

[0030] Figure 7 is a structural schematic diagram of the fixed seat of a knife sharpener proposed by the utility model.

[0031] Legend Explanation:

[0032] 1. Mounting plate; 2. Turntable; 3. Support column; 4. Guide rail; 5. Hydraulic rod; 6. Water delivery pipe; 7. Grinding stone; 8. Fixed seat; 9. Fixed plate; 10. Rotating rod; 11. Rubber pad; 12. Slide block; 13. Electric push rod; 14. Support rod; 15. Clamping plate one; 16. Water pump; 17. Water storage bin; 18. Filter plate; 19. Limiting plate; 20. Push plate; 21. Moving shaft; 22. Spring one; 23. Bidirectional threaded rod; 24. Guide rod; 25. Spring two; 26. Clamping plate two; 27. Moving block. Specific Embodiment

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Referring to Figure 1 - Figure 2 , an embodiment provided by the present invention: A sharpener, including a mounting plate 1, a plurality of uniformly distributed support columns 3 are fixedly connected to the bottom of the mounting plate 1, two fixed plates 9 are slidably connected to the top of the mounting plate 1, an electric push rod 13 is fixedly connected to the inside of the fixed plate 9, rotating rods 10 are rotatably connected to both the upper and lower sides of one end of the telescopic end of the electric push rod 13, a support rod 14 is rotatably connected to one end of the rotating rod 10, a clamping plate one 15 is fixedly connected to one end of the support rod 14, a rubber pad 11 is fixedly connected to one side of the clamping plate one 15, grinding stones 7 are abutted against the opposite sides of adjacent two rubber pads 11, a fixed seat 8 is arranged on the top of the mounting plate 1, the other end of the support rod 14 is fixedly connected to a slide block 12, two chutes are opened in the inside of the fixed plate 9, the slide block 12 is slidably connected to the inside of the chute, a guide rail 4 is fixedly connected to the top side of the mounting plate 1, the fixed seat 8 is slidably connected to the top of the guide rail 4, a hydraulic rod 5 is fixedly connected to the top side of the mounting plate 1, and one end of the hydraulic rod 5 is fixedly connected to one side of the fixed seat 8.

[0035] Specifically, the mounting plate 1 is used to mount other structures, the support column 3 is used to support the stable operation of the device, the fixing plate 9 is used to mount the electric push rod 13, the telescopic end of the electric push rod 13 can drive the rotating rod 10 to rotate, the rotation of the rotating rod 10 drives the support rod 14 to move, the slider 12 slides inside the chute to limit the movement of the support rod 14, the support rod 14 is used to mount the first clamping plate 15, the first clamping plate 15 can clamp and fix the grindstone 7, the rubber pad 11 increases the friction between the first clamping plate 15 and the grindstone 7, the grindstone 7 can frictionally polish the blade, the fixing seat 8 functions to mount and fix the blade, and the hydraulic rod 5 is used to drive the fixing seat 8 to move on the top of the guide rail 4.

[0036] Refer to Figure 1 and Figure 3 , a cooling component is provided on the bottom side of the mounting plate 1. The cooling component includes a water pump 16, the water pump 16 is fixedly connected to the left side of the bottom of the mounting plate 1, both the input end and the output end of the water pump 16 are fixedly connected with water pipes 6, one end of one of the water pipes 6 is fixedly connected to the inner bottom of the water storage bin 17, one end of the other water pipe 6 is arranged on the top of the mounting plate 1, and one end of the other water pipe 6 is fixedly connected with a nozzle.

[0037] Specifically, the water pump 16 is used to drive the flow of water, the water pipe 6 functions to convey water, and the water can be sprayed onto the blade through the nozzle to cool the blade.

[0038] Refer to Figure 3 - Figure 5 , a water storage bin 17 is fixedly connected to the bottom side of the mounting plate 1, a filtering component is arranged inside the water storage bin 17, the filtering component includes a filter plate 18, the filter plate 18 is slidably connected inside the water storage bin 17, a moving shaft 21 is slidably connected to the inner side of one side of the water storage bin 17, a push plate 20 is fixedly connected to the outer periphery of the moving shaft 21, a first spring 22 is sleeved on the outer periphery of the moving shaft 21, one end of the first spring 22 abuts against one side of the push plate 20, the other end of the first spring 22 abuts against the inner side of one side of the water storage bin 17, a limiting plate 19 is fixedly connected to one side of the filter plate 18, and the limiting plate 19 is slidably connected inside the water storage bin 17.

[0039] Specifically, the water storage bin 17 is used to store water, the filter plate 18 can filter the water, one end of the moving shaft 21 is inserted into the filter plate 18 to fix the filter plate 18 inside the water storage bin 17, the first spring 22 and the push plate 20 are used to push the moving shaft 21 to move, and the limiting plate 19 is used to limit the movement of the filter plate 18 to prevent the filter plate 18 from falling off the inside of the water storage bin 17.

[0040] Refer to Figure 1 , Figure 6 and Figure 7, a bidirectional threaded rod 23 is rotatably connected inside the mounting plate 1. One end of the bidirectional threaded rod 23 is fixedly connected to a turntable 2. A guide rod 24 is fixedly connected inside the mounting plate 1. Two moving blocks 27 are fixedly connected to the bottom of the fixing plate 9. The moving blocks 27 are slidably connected inside the mounting plate 1. One of the moving blocks 27 is threadedly connected to the outer periphery of the bidirectional threaded rod 23, and the other moving block 27 is slidably connected to the outer periphery of the guide rod 24. Two clamping plates II 26 are slidably connected inside the fixing seat 8. A plurality of uniformly distributed springs II 25 are fixedly connected to one side of the clamping plate II 26. One end of the spring II 25 is fixedly connected to one side inside the fixing seat 8.

[0041] Specifically, rotating the turntable 2 can drive the bidirectional threaded rod 23 to rotate. The rotation of the bidirectional threaded rod 23 causes the plurality of moving blocks 27 to drive the two fixing plates 9 to move towards each other respectively. The guide rod 24 plays a role in restricting the movement of the fixing plate 9, and the spring II 25 plays a role in pushing the clamping plate II 26 to move. The movement of the clamping plate II 26 can fix the blade inside the fixing seat 8.

[0042] Working principle: Place the blade to be polished inside the fixing seat 8. The two clamping plates II 26 are pushed by the plurality of springs II 25 to move towards each other to clamp and fix the blade inside the fixing seat 8. Then rotate the turntable 2. The turntable 2 drives the bidirectional threaded rod 23 to rotate, causing the two fixing plates 9 to drive the two grinding stones 7 to move towards each other and closely adhere to the blade. Then start the telescopic end of the hydraulic rod 5 to extend and retract, driving the fixing seat 8 and the blade to reciprocate on the side where the two grinding stones 7 face each other for grinding. During the grinding of the blade, the water pump 16 can be started to drive the water flow through the water delivery pipe 6 to spray from the nozzle towards the blade. The water flow can cool the blade and wash the dust generated during grinding. The sprayed water flow flows into the water storage bin 17 inside the mounting plate 1 after passing through the mounting plate 1. The filter plate 18 inside the water storage bin 17 can filter the water flow, and the filtered water flow can be reused. Pull the moving shaft 21 to move and pull out one end of the moving shaft 21 from inside the filter plate 18, and then the filter plate 18 can be taken out from inside the water storage bin 17 for cleaning to maintain the filtering effect. When the grinding stone 7 needs to be replaced, the telescopic end of the electric push rod 13 can be started to contract. The contraction of the telescopic end of the electric push rod 13 drives the two rotating rods 10 to rotate, and the rotation of the two rotating rods 10 causes the two clamping plates I 15 to move relatively, thereby releasing the clamping of the two clamping plates I 15 on the grinding stone 7 for replacement.

[0043] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A knife sharpener, comprising a mounting plate (1), characterized in that: A cooling component is provided on the bottom side of the mounting plate (1), a water storage tank (17) is fixedly connected to the bottom side of the mounting plate (1), a filter component is provided inside the water storage tank (17), a plurality of evenly distributed support columns (3) are fixedly connected to the bottom of the mounting plate (1), two fixed plates (9) are slidably connected to the top of the mounting plate (1), an electric push rod (13) is fixedly connected inside the fixed plate (9), a rotating rod (10) is rotatably connected to one end of the telescopic end of the electric push rod (13) at both the upper and lower sides, one end of the rotating rod (10) is rotatably connected to a support rod (14), one end of the support rod (14) is fixedly connected to a clamping plate 1 (15), one side of the clamping plate 1 (15) is fixedly connected to a rubber pad (11), a whetstone (7) is abutted against the opposite side of two adjacent rubber pads (11), and a fixing seat (8) is provided on the top of the mounting plate (1).

2. A knife sharpener according to claim 1, characterized in that: The cooling component comprises a water pump (16), the water pump (16) being fixedly connected to the left side of the bottom of the mounting plate (1), the input end and the output end of the water pump (16) being fixedly connected to water pipes (6), one end of one of the water pipes (6) being fixedly connected to the inner side of the bottom of the water storage tank (17), one end of the other water pipe (6) being arranged on the top of the mounting plate (1), and one end of the other water pipe (6) being fixedly connected to a nozzle.

3. A knife sharpener according to claim 1, characterized in that: The filter assembly comprises a filter plate (18), the filter plate (18) being slidably connected to the inside of the water storage tank (17), a movable shaft (21) being slidably connected to the inside of one side of the water storage tank (17), a push plate (20) being fixedly connected to the outer periphery of the movable shaft (21), a spring (22) being sleeved on the outer periphery of the movable shaft (21), one end of the spring (22) being abutted against one side of the push plate (20), and the other end of the spring (22) being abutted against the inside of one side of the water storage tank (17).

4. A knife sharpener according to claim 1, characterized in that: The other end of the support rod (14) is fixedly connected to a sliding block (12), two sliding grooves are provided inside the fixed plate (9), and the sliding block (12) is slidably connected inside the sliding grooves.

5. A knife sharpener according to claim 3, characterized in that: One side of the filter plate (18) is fixedly connected to a limit plate (19), and the limit plate (19) is slidably connected to the inside of the water storage tank (17).

6. A knife sharpener according to claim 1, characterized in that: The top side of the mounting plate (1) is fixedly connected to a guide rail (4), the fixing seat (8) is slidably connected to the top of the guide rail (4), the top side of the mounting plate (1) is fixedly connected to a hydraulic rod (5), and one end of the hydraulic rod (5) is fixedly connected to one side of the fixing seat (8).

7. A knife sharpener according to claim 1, characterized in that: A bidirectional threaded rod (23) is rotatably connected inside the mounting plate (1), one end of the bidirectional threaded rod (23) is fixedly connected to a turntable (2), a guide rod (24) is fixedly connected inside the mounting plate (1), two moving blocks (27) are fixedly connected to the bottom of the fixed plate (9), the moving blocks (27) are slidably connected inside the mounting plate (1), one of the moving blocks (27) is threadedly connected to the outer periphery of the bidirectional threaded rod (23), and the other of the moving blocks (27) is slidably connected to the outer periphery of the guide rod (24).

8. A knife sharpener according to claim 1, characterized in that: Two second clamping plates (26) are slidably connected inside the fixing seat (8), a plurality of evenly distributed second springs (25) are fixedly connected to one side of the second clamping plate (26), and one end of the second spring (25) is fixedly connected to one side inside the fixing seat (8).

Citation Information

Patent Citations

  • Knife sharpener

    CN219805942U