Multifunctional kitchen knife
By incorporating a multi-functional tool hole and a combination structure of handle core and slider on the kitchen knife, the problems of single-function and looseness in kitchen knives are solved, enabling multi-functional use and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING MINGYOU STEEL PROD MFG CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-24
AI Technical Summary
Existing kitchen knives have limited functionality, and the handle and blade are prone to loosening when frequently chopping hard objects or smashing garlic, making repairs inconvenient.
A multi-functional tool hole is provided on the blade plate, and the blade plate is detachably connected by a combination structure of the shank core, slider, limit block, permanent magnet and wedge block, combined with the drive assembly. The shank core can be quickly fixed and released by the cooperation of the permanent magnet and wedge block.
It enhances the versatility of kitchen knives, solves the problem of loose handles and blades, simplifies the repair process, and improves ease of use.
Smart Images

Figure CN224158446U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchen knife technology, and in particular to a multi-functional kitchen knife. Background Technology
[0002] Kitchen knives refer to various knives used in the kitchen for cutting and processing food. They are designed in various shapes and sizes according to different uses and functions. Existing kitchen knives only have the function of slicing food and crushing garlic, and there is much room for improvement.
[0003] Currently, most kitchen knives on the market have a hole on the blade for hanging and draining water. However, existing kitchen knives have relatively limited functions. In addition, when frequently chopping hard objects or smashing garlic, the handle and blade may become loose. Since the handle and blade are mainly riveted together, repairs are very inconvenient once they become loose. Utility Model Content
[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a multifunctional kitchen knife.
[0005] The technical solution of this utility model is as follows: a multi-functional kitchen knife, including a blade plate, a variety of tool holes with different functions are provided on the blade plate, a blade is provided on the blade plate, and the blade plate is integrally connected to the handle core, and a number of insertion holes are provided at equal intervals along the length of the handle core.
[0006] The handle has a sliding groove, and several storage slots connected to the sliding groove are set on both sides of the sliding groove.
[0007] The slider is slidably set in the groove. The slider has a slot, and the handle core is inserted into the slot. Several sets of limiting blocks are slidably set on the slider. Each set of limiting blocks has two blocks and is symmetrical about the center of the slot. At the end of the two limiting blocks in the same set that are close to each other, a permanent magnet that is adapted to the corresponding side of the insertion hole is set. The magnetic poles of the permanent magnets on the two limiting blocks in the same set are the same at the end that are close to each other. At the end of the two limiting blocks in the same set that are far from each other, a wedge block that is adapted to the corresponding side of the storage groove is set.
[0008] And a drive assembly, which is mounted on the handle and drives the slider to slide radially along the groove.
[0009] Preferably, the tool holes include nail puller holes, hexagonal bolt holes, and U-shaped wrench holes, wherein there are multiple hexagonal bolt holes, and the inner diameter of each hexagonal bolt hole is different.
[0010] Preferably, the end of the handle facing the blade is integrally connected to the protective sleeve, and the protective sleeve is snapped into the end of the blade near the handle core.
[0011] Preferably, the handle is provided with several mounting slots, and each mounting slot is provided with an anti-slip rubber pad.
[0012] Preferably, multiple sets of limiting grooves are symmetrically arranged on the slider about the center of the slot, and each limiting block is located in the limiting groove on the corresponding side and is slidably connected to it.
[0013] Preferably, the drive assembly includes a screw, one end of which is inserted into a groove and rotatably connected to the handle, and the threaded end of the screw is inserted into a slider and helically connected thereto. A nut is provided at the end of the screw away from the blade plate, and a circular groove is provided on the handle. The nut is located in the circular groove and rotates coaxially with it.
[0014] Preferably, an annular damping pad is provided on the arc-shaped inner wall of the circular groove, and the inner wall of the annular damping pad abuts against the arc surface of the nut.
[0015] Compared with the prior art, the present invention has the following beneficial technical effects:
[0016] By incorporating nail-removing holes, hexagonal bolt holes, and U-shaped wrench holes, this kitchen knife adds the functions of nail removal, bolt tightening and loosening, and bottle cap opening to the traditional knife functionality. A sliding block is installed inside the handle, and a rotating bolt engages the blade's handle core with the sliding block. Multiple pairs of opposing limit blocks are installed on the sliding block, each containing a permanent magnet and a wedge-shaped block. A storage groove inside the handle allows the wedge-shaped block to retract, facilitating the insertion of the handle core into the slot on the sliding block. The bolt drives the sliding block to slide, causing the wedge-shaped block to abut against the inner wall of the handle's groove, thus engaging the permanent magnet into the handle core's insertion hole. Tightening the handle and blade core is achieved by rotating the bolt. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0018] Figure 2 This is a schematic diagram of the connection structure between the blade plate and the shank core.
[0019] Figure 3 This is a schematic diagram of the internal structure of the handle;
[0020] Figure 4 This is a schematic diagram of the connection structure between the slider and the drive component.
[0021] Reference numerals: 1. Blade; 101. Blade edge; 102. Nail puller hole; 103. Hex bolt hole; 104. U-shaped wrench hole; 2. Handle core; 201. Insertion hole; 3. Handle; 301. Slide groove; 302. Storage groove; 303. Circular groove; 304. Mounting groove; 31. Protective sleeve; 4. Slider; 41. Card slot; 42. Limiting groove; 5. Screw; 51. Nut; 6. Limiting block; 7. Permanent magnet; 8. Wedge block; 9. Anti-slip rubber pad. Detailed Implementation
[0022] Example 1
[0023] like Figures 1-4 As shown, this utility model proposes a multi-functional kitchen knife, including a blade plate 1, a handle 3, a slider 4, and a drive assembly. The blade plate 1 has various tool holes with different functions, a blade 101, and is integrally connected to a handle core 2. The handle core 2 has several insertion holes 201 evenly spaced along its length. The tool holes include nail holes 102, hexagonal bolt holes 103, and U-shaped wrench holes 104. There are multiple hexagonal bolt holes 103, and the inner diameter of each hexagonal bolt hole 103 is different. The handle 3 has a sliding groove 301, and several storage slots 302 communicating with the sliding groove 301 are provided on both sides of the sliding groove 301. A protective sleeve 31 is integrally connected to the end of the handle 3 facing the blade plate 1, and the protective sleeve 31 engages with the end of the blade plate 1 near the handle core 2. The handle 3 has several mounting slots 304, each containing an anti-slip rubber pad 9. The slider 4 is slidably disposed within the slide groove 301. A slot 41 is provided on the slider 4, into which the handle core 2 is inserted. Several sets of limiting blocks 6 are slidably disposed on the slider 4, with two limiting blocks 6 in each set, symmetrically positioned about the center of the slot 41. Multiple sets of limiting grooves 42 are symmetrically disposed on the slider 4 about the center of the slot 41, with each limiting block 6 located within and slidably connected to the corresponding limiting groove 42. At the ends of two limiting blocks 6 in the same set that are close to each other, a permanent magnet 7 is provided, adapted to the corresponding insertion hole 201. The permanent magnets 7 at the ends of two limiting blocks 6 in the same set that are close to each other have the same magnetic poles. At the ends of two limiting blocks 6 in the same set that are far apart from each other, a wedge-shaped block 8 is provided, adapted to the corresponding storage groove 302. The drive assembly includes a screw 5, one end of which is inserted into the slide groove 301 and rotatably connected to the handle 3. The threaded end of the screw 5 is inserted into the slider 4 and helically connected to it. A nut 51 is provided at the end of the screw 5 away from the blade plate 1. A circular groove 303 is provided on the handle 3. The nut 51 is located in the circular groove 303 and rotates coaxially with it. At the same time, an annular damping pad is provided on the arc-shaped inner wall of the circular groove 303. The inner wall of the annular damping pad abuts against the arc surface of the nut 51.
[0024] In this embodiment, a nail-removing hole 102, a hexagonal bolt hole 103, and a U-shaped wrench hole 104 are provided on the traditional kitchen knife blade. This allows the kitchen knife to perform nail removal, tightening and loosening of hexagonal bolts, and bottle opening functions. Furthermore, the nail-removing hole 102 allows the kitchen knife to be hung on a hook for easy drainage. When the handle 3 becomes loose from the blade 1, a tool is used to drive the nut 51 to rotate, which in turn drives the screw 51 to rotate. The screw 51 then pulls the slider 4, causing the slider 4 to slide away from the blade 1. This causes the limiting blocks 6 to tighten the blade 1 towards the inside of the handle 3. When the handle 3 is replaced, the drive screw 5 rotates in the opposite direction, causing the slider 4 to slide towards the blade plate 1. The limiting block 6 slides along with it. When the wedge block 8 slides to the inside of the corresponding storage slot 42 opening, the two sets of limiting blocks 6 move away from each other and enter the storage slot 42 under the repulsive force of the two permanent magnets 7 with the same magnetic poles. At this time, the limiting block 6 and the permanent magnet 7 are disengaged from the insertion hole 201, and the handle core 2 can be directly pulled out from the slot 41. After the handle core 2 of the new blade plate 1 is inserted into the slot 41, the drive screw 5 rotates and drives the slider 4 to slide in the opposite direction. With the help of the inclined surface of the wedge block 8 and the edge of the opening of the storage slot 42, the permanent magnet 7 is automatically inserted into the insertion hole 201 and the handle 3 and blade plate 1 are tightened, ensuring that the wedge block 8 is completely disengaged from the storage slot 42.
[0025] Example 2
[0026] like Figure 1 and Figure 3 As shown, the multifunctional kitchen knife proposed in this utility model, compared with Embodiment 1, has a protective sleeve 31 including a finger guard surface parallel to the blade 1 and a ring finger contact surface perpendicular to the finger guard surface.
[0027] In this embodiment, when cutting hard objects, the index and middle fingers contact one side of the finger guard, while the thumb contacts the other side of the finger guard. This gripping of the guard 31 prevents hand fatigue, while the ring finger contact surface prevents accidental injury to the fingers from the flat edge of the blade.
[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A multi-functional kitchen knife, characterized in that, include: The blade (1) is provided with a variety of tool holes with different functions. The blade (1) is provided with a blade (101). The blade (1) is integrally connected to the handle core (2). Several insertion holes (201) are provided at equal intervals along the length direction of the handle core (2). Handle (3), a slide groove (301) is provided on the handle (3), and several storage slots (302) communicating with the slide groove (301) are provided on both sides of the slide groove (301) on the handle (3); The slider (4) is slidably set in the groove (301). The slider (4) is provided with a slot (41). The handle core (2) is inserted into the slot (41). Several sets of limiting blocks (6) are slidably set on the slider (4). Each set of limiting blocks (6) has two blocks and is symmetrical about the center of the slot (41). At the end of the two limiting blocks (6) in the same set that are close to each other, a permanent magnet (7) that is compatible with the corresponding side of the insertion hole (201) is provided. The magnetic poles of the permanent magnets (7) on the two limiting blocks (6) in the same set are the same at the end that are close to each other. At the end of the two limiting blocks (6) in the same set that are far apart from each other, a wedge block (8) that is compatible with the corresponding side of the storage groove (302) is provided. And a drive assembly, which is mounted on the handle (3) and drives the slider (4) to slide radially along the groove (301).
2. A multi-functional kitchen knife according to claim 1, characterized in that, The tool holes include a nail puller hole (102), a hex bolt hole (103), and a U-shaped wrench hole (104). There are multiple hex bolt holes (103), and the inner diameter of each hex bolt hole (103) is different.
3. A multi-functional kitchen knife according to claim 1, characterized in that, The end of the handle (3) facing the blade (1) is integrally connected to the sleeve (31), and the sleeve (31) is snapped into the end of the blade (1) near the handle core (2).
4. A multi-functional kitchen knife according to claim 1, characterized in that, The handle (3) is provided with several mounting slots (304), and anti-slip pads (9) are provided in each mounting slot (304).
5. A multi-functional kitchen knife according to claim 1, characterized in that, Multiple sets of limiting grooves (42) are symmetrically arranged on the slider (4) about the center of the slot (41), and each limiting block (6) is located in the limiting groove (42) on the corresponding side and is slidably connected to it.
6. A multi-functional kitchen knife according to claim 1, characterized in that, The drive assembly includes a screw (5), one end of which is inserted into a groove (301) and rotatably connected to a handle (3), and the threaded end of the screw (5) is inserted into a slider (4) and helically connected to it. A nut (51) is provided at the end of the screw (5) away from the blade (1), and a circular groove (303) is provided on the handle (3). The nut (51) is located in the circular groove (303) and rotates coaxially with it.
7. A multi-functional kitchen knife according to claim 6, characterized in that, An annular damping pad is provided on the arc-shaped inner wall of the circular groove (303), and the inner wall of the annular damping pad abuts against the arc surface of the nut (51).