A multi-bladed knife

By introducing a locking component to connect with the threaded rod in the multi-blade kitchen knife, the problems of positional displacement and detachment caused by the rotation of the threaded rod are solved, improving safety and the uniformity of cutting vegetables.

CN224940080UActive Publication Date: 2026-11-06CHONGQING MING MACHINERY TECHNOLOGY CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202521409711.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-07
Publication Date
2026-11-06
Estimated Expiration
2035-07-07

AI Technical Summary

Technical Problem

Existing multi-blade kitchen knives suffer from vibrations that cause the threaded rod to rotate, leading to the secondary blades shifting or falling off, affecting the uniformity and safety of cutting vegetables.

Method used

A locking assembly is used to connect the threaded rod. The locking assembly can selectively lock or release the position of the threaded rod to prevent it from rotating and ensure a stable distance between the secondary cutting edge and the main body of the tool.

Benefits of technology

It effectively prevents the threaded rod from rotating due to vibration, avoids changes in the position of the secondary blade and its detachment, and improves safety and uniformity of cutting.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224940080U_ABST
    Figure CN224940080U_ABST
Patent Text Reader

Abstract

This utility model provides a multi-bladed cutting tool, including a tool body, with secondary blades arranged parallel to each other on the side of the tool body. The secondary blades are slidable along the direction of the tool body. A threaded rod is rotatably mounted on the tool body and screwed to the secondary blades. A locking component connected to the threaded rod is also provided on the secondary blades. The locking component allows selective locking or unlocking of the threaded rod. During use, the distance between the tool body and the secondary blades can be adjusted by rotating the threaded rod, and the rotation of the threaded rod can be locked by the locking component. This effectively prevents the threaded rod from rotating due to vibration during operation, prevents changes in the distance between the secondary blades and the tool body during subsequent use, and effectively prevents the secondary blades from falling off, thus improving safety during use.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, specifically to a multi-bladed cutting tool. Background Technology

[0002] With the diversification of cooking needs in modern kitchens, multi-bladed knives are favored by many professional chefs and home users because they can quickly chop ingredients, greatly improving food preparation efficiency. For example, Chinese utility model patent CN2330467Y discloses a three-bladed knife, consisting of a blade, a body, and a handle. Its structural feature is that it has three blades on one blade. The side blades are connected to the main blade on both sides by connectors. The relative distance and height between the side blades and the main blade are adjusted by an adjusting component 6, the length of which determines the relative distance between the side blades and the main blade. Its structure is simple, improves cutting efficiency, and is suitable for different cutting requirements.

[0003] Most multi-blade kitchen knives on the market use a threaded connection to install the secondary blade to allow for adjustable blade spacing to accommodate different food processing needs. The relative position between the main blade and the secondary blade is changed by rotating the threaded rod. However, during daily chopping, the knife generates significant vibration and impact. Under these external forces, the threaded rod is prone to rotation, causing the secondary blade to shift. This not only affects the evenness and precision of chopping but may also lead to the blade becoming loose or even falling off. For example, when quickly chopping meat, a loose secondary blade may suddenly pop out, causing serious injury to the user and greatly reducing safety. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model proposes a multi-blade cutting tool to solve the technical problem mentioned in the background art. Most existing multi-blade cutting tools are installed and the distance between the tool body and the secondary blade is adjusted by threads. However, during use, vibration can cause the threaded rod to rotate, resulting in the tool position shifting or falling off, thus reducing its safety during use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-blade cutting tool, comprising: Tool body; The secondary cutting edge is arranged parallel to the side of the main body of the tool and can slide along the direction of the main body of the tool; A threaded rod, rotatably mounted on the cutter body along its axis, and threadedly connected to the secondary cutting edge; and A locking assembly is disposed on the secondary cutting edge and connected to the threaded rod to selectively lock or unlock the position of the threaded rod.

[0006] Furthermore, the locking component includes: A mounting base is provided on the secondary cutting edge; and A set screw is screwed onto the mounting base. A locking groove is provided on the threaded rod along its axis, and the end of the set screw is locked in the locking groove.

[0007] Furthermore, the end of the threaded rod is provided with a mounting post, and a knob sleeve is slidably sleeved on the mounting post along its axis, the knob sleeve being interference-fitted with the mounting post.

[0008] Furthermore, the diameter of the mounting post is smaller than the diameter of the threaded rod.

[0009] Furthermore, the distance between the knob sleeve and the end of the threaded rod is not less than the thickness of the secondary blade.

[0010] Furthermore, the side wall of the cutter body is provided with a mounting plate, the threaded rod is rotatably mounted on the mounting plate, a positioning pin is also provided on one side of the threaded rod, a positioning hole is opened on the secondary cutting edge, and the positioning pin is slidably inserted into the positioning hole.

[0011] Furthermore, the mounting plate is welded onto the cutter body.

[0012] Furthermore, there are two sets of mounting plates, and the two sets of mounting plates are respectively located on both sides of the tool body. One set of mounting plates is provided with a threaded knob, which passes through the tool body and is screwed to the other set of mounting plates.

[0013] Furthermore, an anti-slip ring is provided between the knob end of the threaded knob and the mounting plate.

[0014] Furthermore, a sealing layer is provided between the mounting plate and the cutter body, and the sealing layer is made of a flexible material.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When in use, this knife allows for rapid chopping using the main body and its secondary blade. The locking mechanism releases the rotation of the threaded rod, which can then be rotated to adjust the distance between the main body and the secondary blade for different applications. After adjustment, the locking mechanism again locks the threaded rod, effectively preventing it from rotating due to vibrations during operation. This prevents changes in the distance between the secondary blade and the main body during subsequent use and also prevents the secondary blade from falling off, thus improving safety during use. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 A three-dimensional structural diagram of a multi-blade cutting tool provided by this utility model; Figure 2 This is a top view of a multi-blade cutting tool according to the present invention; Figure 3 This is a schematic diagram of the secondary cutting edge in a multi-bladed cutting tool according to the present invention; Figure label: 1. Tool body; 2. Secondary cutting edge; 21. Positioning hole; 22. Mounting base; 23. Set screw; 3. Mounting plate; 31. Positioning post; 32. Threaded knob; 33. Sealing layer; 4. Threaded rod; 41. Mounting post; 42. Knob sleeve; 43. Locking groove. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0019] Example: like Figure 2 , 3 As shown, this utility model provides a multi-blade cutting tool, including a tool body 1. Secondary cutting edges 2 are arranged parallel to each other on the side of the tool body 1 and can slide along the direction of the tool body 1. A threaded rod 4 is rotatably mounted on the tool body 1 and is screwed to the secondary cutting edge 2. A locking assembly is also provided on the secondary cutting edge 2, connected to the threaded rod 4, to selectively lock or unlock the position of the threaded rod 4. The locking assembly includes a mounting base 22 mounted on the secondary cutting edge 2, a set screw 23 screwed onto the mounting base 22, and a locking groove 43 formed along the axis of the threaded rod 4. The end of the set screw 23 is engaged in the locking groove 43.

[0020] When in use, this knife can quickly chop food into granules through the cooperation of the knife body 1 and the secondary blade 2. The distance between the secondary blade 2 and the knife body 1 can be adjusted by rotating the threaded rod 4 to move the secondary blade 2, facilitating the processing of different foods. After rotating the threaded rod 4, the locking groove 43 faces the set screw 23. Rotating the set screw 23 allows it to slide on the mounting base 22 until the end of the set screw 23 is engaged in the locking groove 43, thus locking the threaded rod 4. This effectively prevents the threaded rod 4 from rotating due to vibration during subsequent food processing, improving the safety of the knife during use. Furthermore, in some embodiments, the secondary blade 2 can be configured as two sets, located on both sides of the knife body 1. The threaded rod 4 has a bidirectional thread, with the threads at both ends screwed into the two sets of secondary blades 2, allowing for quick adjustment of the distance between the two sets of secondary blades 2 and the knife body 1.

[0021] like Figure 2 , 3 As shown, in this embodiment, a mounting post 41 is provided at the end of the threaded rod 4. A knob sleeve 42 is slidably fitted on the mounting post 41 along its axis, and the knob sleeve 42 is interference-fitted with the mounting post 41. The diameter of the mounting post 41 is smaller than the diameter of the threaded rod 4. The distance between the knob sleeve 42 and the end of the threaded rod 4 is not less than the thickness of the secondary cutting edge 2. The distance between the secondary cutting edge 2 and the tool body 1 can be adjusted by rotating the mounting post 41 through the knob sleeve 42. The knob sleeve 42 can be continuously rotated until the secondary cutting edge 2 disengages from the threaded rod 4 and is placed on a section of the mounting post 41 between the knob sleeve 42 and the end of the threaded rod 4, so as to facilitate the disassembly and replacement of the secondary cutting edge 2. After the secondary cutting edge 2 is disassembled, the tool can be used as a regular tool.

[0022] like Figures 1 to 3 As shown, in this embodiment, a mounting plate 3 is provided on the side wall of the cutter body 1, and a threaded rod 4 is rotatably mounted on the mounting plate 3. A positioning pin 31 is also provided on one side of the threaded rod 4, and a positioning hole 21 is provided on the secondary cutting edge 2. The positioning pin 31 is slidably inserted into the positioning hole 21. The movement of the secondary cutting edge 2 can be positioned by the cooperation between the positioning pin 31 and the positioning hole 21 to prevent the secondary cutting edge 2 from rotating.

[0023] In some embodiments, the mounting plate 3 is welded to the tool body 1 to improve the stability of the secondary cutting edge 2 after installation, as well as the overall stability of the tool structure. Additionally, it is understood that in other embodiments, two sets of mounting plates 3 are arranged, with each set located on one side of the tool body 1. One set of mounting plates 3 is equipped with a threaded knob 32, which passes through the tool body 1 and is screwed onto the other set of mounting plates 3. An anti-slip ring is provided between the knob end of the threaded knob 32 and the mounting plate 3. Although the overall stability of the tool structure is somewhat reduced, it allows for easy disassembly of all parts of the tool except the tool body 1, facilitating the independent use of the tool body 1.

[0024] like Figure 2 As shown, in this embodiment, a sealing layer 33 is provided between the mounting plate 3 and the knife body 1. The sealing layer 33 is made of flexible material, which can maximize the gap between the mounting plate 3 and the knife body 1, and prevent food debris from entering between the mounting plate 3 and the knife body 1, making it inconvenient to clean.

[0025] The specific usage and beneficial effects of this utility model are as follows: When in use, this knife can be used to quickly chop vegetables using the main body 1 and the secondary blade 2 on its side. The rotation of the threaded rod 4 can be released by the locking assembly, and then the distance between the main body 1 and the secondary blade can be adjusted by rotating the threaded rod 4 to adapt to different usage scenarios. After adjustment, the rotation of the threaded rod 4 can be locked again by the locking assembly, effectively preventing the threaded rod 4 from rotating due to vibration during operation. This prevents changes in the distance between the secondary blade 2 and the main body 1 during subsequent use and also effectively prevents the secondary blade 2 from falling off, improving safety during use.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above. Modifications or improvements can be made to this utility model, which is obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this utility model fall within the scope of protection claimed by this utility model.

Claims

1. A multi-bladed cutting tool, characterized in that, Including: Tool body (1); The secondary cutting edge (2) is arranged parallel to the side of the main body of the tool (1) and can slide along the direction of the main body of the tool (1); A threaded rod (4) is rotatably mounted on the cutter body (1) along its axis and is screwed to the secondary cutting edge (2); and A locking assembly is provided on the secondary cutting edge (2) and connected to the threaded rod (4) to selectively lock or unlock the position of the threaded rod (4).

2. A multi-bladed cutting tool according to claim 1, characterized in that, The locking component includes: Mounting base (22) is provided on the secondary blade (2); and A set screw (23) is screwed onto the mounting base (22). A locking groove (43) is provided on the threaded rod (4) along its axis. The end of the set screw (23) is locked in the locking groove (43).

3. A multi-bladed cutting tool according to claim 1, characterized in that: The end of the threaded rod (4) is provided with a mounting post (41), and a knob sleeve (42) is slidably sleeved on the mounting post (41) along its axis. The knob sleeve (42) is interference-fitted with the mounting post (41).

4. A multi-bladed cutting tool according to claim 3, characterized in that: The diameter of the mounting post (41) is smaller than the diameter of the threaded rod (4).

5. A multi-bladed cutting tool according to claim 3, characterized in that: The distance between the knob sleeve (42) and the end of the threaded rod (4) is not less than the thickness of the secondary blade (2).

6. A multi-bladed cutting tool according to claim 1, characterized in that: The tool body (1) has a mounting plate (3) on its side wall. The threaded rod (4) is rotatably mounted on the mounting plate (3). A positioning pin (31) is also provided on one side of the threaded rod (4). A positioning hole (21) is provided on the secondary cutting edge (2). The positioning pin (31) slides through the positioning hole (21).

7. A multi-bladed cutting tool according to claim 6, characterized in that: The mounting plate (3) is welded onto the cutter body (1).

8. A multi-bladed cutting tool according to claim 6, characterized in that: The mounting plate (3) is arranged in two sets, and the two sets of mounting plates (3) are located on both sides of the tool body (1). One set of mounting plates (3) is provided with a threaded knob (32), which passes through the tool body (1) and is screwed to the other set of mounting plates (3).

9. A multi-bladed cutting tool according to claim 8, characterized in that: An anti-slip ring is provided between the knob end of the threaded knob (32) and the mounting plate (3).

10. A multi-bladed cutting tool according to claim 6, characterized in that: A sealing layer (33) is provided between the mounting plate (3) and the cutter body (1), and the sealing layer (33) is made of flexible material.

Citation Information

Patent Citations

  • Three-edge knife

    CN2330467Y