Multifunctional cutter
By designing a multi-functional knife with a rotating blade and an opening and closing jaw, the problem of handle size limitation is solved, realizing the tool's versatility and convenient storage, making it easy to carry and use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-03-17
AI Technical Summary
Existing multi-tools are limited by the size of their handles, making it impossible to effectively store large tools, especially blades, and thus failing to meet the needs of various usage scenarios.
Design a multi-functional knife that includes a rotatable blade, an openable jaw, and a detachable individual tool. The tool can be converted into multiple functions and stored by a pin connection. The handle can rotate around the pin to adapt to different usage needs.
It achieves versatility and easy storage of tools, with the blade depth limited to 50% of the total depth, and the handle is foldable for easy carrying, providing convenient use and storage for a variety of tools.
Smart Images

Figure CN223998197U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a multi-functional cutting tool, belonging to the field of multi-functional tool technology. Background Technology
[0002] Multi-tools are well-known in this field. These tools typically include a handle made of two elongated sections. While the handle can hold some folding tools, the size of the held tools is often too small due to handle size limitations, making them unsuitable for many usage scenarios. Therefore, there is a need in this field for multi-tools that can accommodate deeper blades. This product addresses this need, as well as other requirements in this field. Utility Model Content
[0003] This invention overcomes the shortcomings of existing technologies and provides a multi-functional knife that is easy to switch and change functions to meet different usage needs and is easier to store.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a multi-functional knife, including a first handle part, a second handle part, and a jaw. The jaw is a set of openable and closable movable components. The jaw is located at the same end of the first handle part and the second handle part to form pliers. The ends of the first handle part and the second handle part are fixed to the jaw by their respective first pins. A rotatable blade is movably arranged in the first handle part. Under normal conditions, the cutting edge of the blade faces the inside of the first handle part. When in use, the blade can rotate outward from the outside of the first handle part. Both the first handle part and the second handle part are provided with storage space. The second handle part is provided with a separate tool at the end away from the jaw. One end of the separate tool is movably engaged with a buckle fixed to the end of the second handle part by a spring sheet. The other end of the separate tool is provided with a tool knife.
[0005] Furthermore, both the first handle portion and the second handle portion can rotate around their respective first pins, so that the jaws can be correspondingly housed between the outer walls of the first handle portion and the second handle portion.
[0006] Furthermore, the blade has a first width, the first handle portion has a second width, the second handle portion has a third width, and the first handle portion and the second handle portion have a combined fourth width after rotating to retract the jaws. The first width is not less than 70% of the fourth width, or the second width is not less than 80% of the fourth width, or the third width is not more than 60% of the second width.
[0007] Furthermore, the depth of the blade is D1, the depth of the blade is D2, the depth of the second handle portion corresponding to the blade storage position is D3, the total depth of the first handle portion and the second handle portion is D4, the depth of the blade D1 cannot exceed the depth of the blade D2, and the depth of the blade D1 accounts for 40% to 60% of the total depth D4.
[0008] Furthermore, the tool knife is fixedly or movably attached to a separate tool, which may be a file, a drill, or a long nail.
[0009] Compared with the prior art, the present invention has the following advantages.
[0010] 1. The handle of this utility model may include a first part and a second part. Typically, the first part can be sized to receive a rotating blade, and the second part can be sized to receive other rotating useful tools, such as a file, drill, nail, or other tool. The part receiving the blade is also referred to herein as the blade part, and the second part is also referred to as the opposing part. The blade part and the opposing part are typically connected to the jaws by a pin. Therefore, under the first condition, the tool can be operated as pliers. Under the second condition, the blade part and the opposing part can rotate about the pin, such that the jaws are received within the two handle parts, leaving the tool easily storeable in a pocket or other suitable folding container.
[0011] 2. In this invention, the depth D2 of the blade portion and the depth D3 of the opposing portion are generally the same, such that when the blade and other tools are rotatably received in the first and second portions, the tool has a generally symmetrical shape. This feature results in the following: the depth D1 of the blade, which cannot sufficiently exceed the depth D2 of the blade portion, is limited to approximately 50% of the total depth D4 of the folding handle.
[0012] 3. The second handle part of this utility model can also have a detachable separate tool. The rear end is connected and fixed to the front end by a spring plate. It contains a rotatable tool head. It can be used in the connected state or used alone, depending on the usage requirements. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the present invention after folding and using it as a knife.
[0016] In the diagram: 1 is the first handle part, 2 is the second handle part, 2.1 is the individual tool, 3 is the blade, 4 is the first pin, 5 is the jaws, 6 is the buckle, 7 is the spring plate, and 8 is the tool knife. Detailed Implementation
[0017] like Figure 1 , Figure 2 As shown, this utility model discloses a multi-functional knife with a novel and advantageous geometry that enhances the functional features of the tool. It includes a first handle portion 1, a second handle portion 2, and jaws 5. The jaws 5 are a set of openable and closable movable components, located on the same side of the first handle portion 1 and the second handle portion 2, forming pliers. The ends of the first handle portion 1 and the second handle portion 2 are fixed to the jaws 5 by their respective first pins 4. A rotatable blade 3 is movably disposed within the first handle portion 1. Normally, the cutting edge of the blade 3 faces inwards from the first handle portion 1. In use, the blade 3 can rotatably extend outwards from the first handle portion 1. Both the first handle portion 1 and the second handle portion 2 have storage spaces. A separate tool 2.1 is located at the end of the second handle portion 2 away from the jaws 5. One end of the separate tool 2.1 is movably engaged with a latch 6 fixed to the end of the second handle portion 2 via a spring plate 7. The other end of the separate tool 2.1 is equipped with a tool knife 8.
[0018] Furthermore, both the first handle portion 1 and the second handle portion 2 can rotate around their respective first pins 4, so that the jaws 5 can be correspondingly housed between the outer walls of the first handle portion 1 and the second handle portion 2.
[0019] Furthermore, the blade 3 has a first width, the first handle portion 1 has a second width, the second handle portion 2 has a third width, and the first handle portion 1 and the second handle portion 2 have a combined fourth width after rotating to receive the jaws 5. The first width is not less than 70% of the fourth width, or the second width is not less than 80% of the fourth width, or the third width is not more than 60% of the second width.
[0020] Furthermore, the depth of the blade 3 is D1, the depth of the blade 3 is D2, the depth of the second handle portion 2 corresponding to the storage position of the blade 3 is D3, the total depth of the first handle portion 1 and the second handle portion 2 is D4, the depth of the blade 3 is D1 and cannot exceed the depth of the blade 3 is D2, and the depth of the blade 3 is D1 accounting for 40% to 60% of the total depth D4.
[0021] Furthermore, the tool knife 8 is fixedly or movably attached to the separate tool 2.1, and the tool knife 8 may be a file, a drill, or a long nail.
[0022] This invention includes a set of jaws 5 configured to pivot relative to each other about an axis, and provides blades 3 having a first width. A first handle portion 1 is attached to the jaws by a first pin 4 and has a second width. The first handle portion 1 is hollow and internally receives the blades 3. A second handle portion 2 is attached to the jaws 5 by another first pin 4 and has a third width. In this configuration, the first handle portion 1 and the second handle portion 2 are configured to pivot about their respective first pins such that the jaws 5 are exposed for use as pliers under a first condition and received between the outer walls of the first handle portion and the outer walls of the second handle portion under a second condition. Under the second condition, the first handle portion 1 and the second handle portion 2 have a combined fourth width. In some embodiments, the multi-tool is configured such that the first width is not less than 70% of the fourth width. In other embodiments, the multi-tool is configured such that the second width is not less than 80% of the fourth width. In yet another embodiment, the multi-tool is configured such that the third width does not exceed 60% of the second width.
[0023] 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 to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A multi-purpose knife comprising a first handle portion (1), a second handle portion (2) and a jaw (5), said jaw (5) being a set of openable and closable movable components, said jaw (5) being arranged at the same side end of the first handle portion (1) and the second handle portion (2) to form a pair of tongs, characterized in that, The end of the first handle part (1) and the second handle part (2) is fixed on the jaw (5) through the first pin (4), the first handle part (1) is movably provided with a rotatable blade (3), the blade (3) is normally directed to the inside of the first handle part (1), and the blade (3) can be rotated to extend outside the first handle part (1) during use, the first handle part (1) and the second handle part (2) are provided with a receiving space, and the second handle part (2) is provided with a separate tool (2.1) at the end away from the jaw (5), one end of the separate tool (2.1) is movably connected with the buckle (6) fixed at the end of the second handle part (2) through the spring sheet (7), and the other end of the separate tool (2.1) is provided with a tool knife (8). The second handle part (2) has a detachable separate tool, the rear end is linked and fixed with the front buckle (6) through the spring sheet (7), the inside hides a rotatable tool head, and the tool head can be used in a linked state or separately according to the use requirement.
2. The multi-purpose tool of claim 1, wherein, The first handle part (1) and the second handle part (2) can rotate around the first pin (4), so that the jaw (5) can be correspondingly received between the outer walls of the first handle part (1) and the second handle part (2).
3. The multi-purpose tool of claim 2, wherein, The width of the blade (3) is a first width, the width of the first handle part (1) is a second width, the width of the second handle part (2) is a third width, the first handle part (1) and the second handle part (2) have a combined fourth width after being rotated to receive the jaw (5), the first width is not less than 70% of the fourth width, or the second width is not less than 80% of the fourth width, or the third width is not more than 60% of the second width.
4. The multi-purpose tool of claim 1, wherein, The depth of the blade (3) is D1, the depth of the blade (3) is D2, the depth of the receiving position of the second handle part (2) corresponding to the blade (3) is D3, the total depth of the first handle part (1) and the second handle part (2) is D4, the depth of the blade (3) D1 cannot exceed the depth of the blade (3) D2, and the depth of the blade (3) D1 accounts for 40% to 60% of the total depth D4.
5. The multi-purpose tool of claim 1, wherein, The tool knife (8) is fixed or movably connected on the separate tool (2.1), and the tool knife (8) is a file, a drill or a long nail.