Multifunctional cutting tool
By combining a utility knife, a support structure, and a dotted-line cutting structure, this multi-functional cutting tool solves the problem of needing to carry both a utility knife and a dotted-line paper cutter, improving safety and cutting efficiency, especially in terms of ease of operation when cutting the silicone sealant on the back of a bathroom sink.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-10
AI Technical Summary
Existing cutting tools require both a utility knife and a dotted-line paper cutter, and pose safety hazards and high cutting difficulty, especially when cutting the silicone sealant on the back of a bathroom sink, where the lack of support structure makes operation inconvenient.
A multi-functional cutting tool was designed, which combines a utility knife, a support structure, and a dotted line cutting structure. The support structure provides stable support, the dotted line cutting structure is located in a non-grip position and can be stored through a limiting device, and the support rotating part rolls to continue the movement trajectory of the utility knife blade, reducing safety risks and simplifying the cutting difficulty.
It eliminates the need to prepare both tools simultaneously in different cutting scenarios, improving operational safety and cutting efficiency, especially reducing the difficulty when cutting residual adhesive.
Smart Images

Figure CN223981839U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of cutting tool, concretely to a multifunctional cutting tool. BACKGROUND
[0002] The art knife and the dotted line paper cutter are both cutting tools, and the core functions thereof are realized by blades to separate materials; both have safety protection designs such as protective sleeves and limiting devices to reduce operation risks; both can be used in paper cutting scenarios such as handcrafting and packaging, and some models support blade replacement to maintain cutting performance; both have practical applications in industrial or handcraft fields and are suitable for work requirements that require accurate or efficient cutting,
[0003] However, the core difference between the two lies in the functional specificity, the art knife focuses on flexibility and versatility, and the dotted line paper cutter is targeted at specific pattern cutting requirements, and the selection needs to be determined according to the use scenarios and efficiency requirements, and usually both need to be prepared at the same time.
[0004] For example, a multifunctional cutter disclosed in Chinese Patent No. CN206475211U includes a cutter shell having a handle part and a blade assembly part, one end of the handle part is provided with a circular arc groove, a dotted line paper cutter assembly is arranged in the circular arc groove, the edge of the circular arc groove is provided with a circular arc notch, and the radius of the circular arc groove is greater than the radius of the circular paper cutter blade of the dotted line paper cutter assembly. The utility model adds a dotted line paper cutter assembly to the tail of the cutter shell. Since the dotted line cutter has a circular shape, it perfectly integrates with the rounded tail of the art knife, provides safety protection without affecting use, and the dotted line paper cutter assembly will not be lost even if it is not used frequently, and will not cause distress due to unavailability when needed. Since only one dotted line blade is added, the cost of buying an additional cutter is saved.
[0005] In summary, there are many drawbacks in existing cutting tools, which are summarized as follows:
[0006] ① According to the switching and efficiency requirements of different cutting scenarios, art knives and dotted line paper cutters usually need to be prepared at the same time;
[0007] ② Although the multifunctional cutter in the comparative document integrates the functions of art knives and dotted line paper cutters, the dotted line blade is located at the tail of the art knife handle, which is exactly where the operator grasps, which leads to safety accidents during work;
[0008] ③ Currently, especially heavy art knives do not have any supporting structure to stabilize the cutting route when cutting the back glass glue of the bathroom basin, so the operator needs to hold the art knife in the air to ensure that the art knife moves forward; when removing the residual adhesive, there is no supporting point, so the residual adhesive needs to be shaken back and forth, which greatly increases the cutting difficulty;
[0009] (4) The blade of the conventional dotted line cutter is exposed, and the operator is at risk of scratching fingers if there is careless extra action. Content of the utility model
[0010] In view of the deficiencies of the prior art, the utility model provides a multifunctional cutting tool to solve the above problems.
[0011] To achieve the above object, the utility model is realized by the following technical scheme.
[0012] A multifunctional cutting tool, including art knife, support structure, dotted line cutting structure, the art knife includes shell, art knife blade, pressurized propulsion structure, the pressurized propulsion structure is connected on the art knife blade, the art knife blade is telescopically arranged in the shell, the support structure includes support main body, support connecting piece, support rotating piece, the support main body is connected on the shell, and corresponds the blade edge side of art knife blade, the support rotating piece is rotatably arranged on the support main body through the support connecting piece, the dotted line cutting structure includes arc base, dotted line knife, dotted line bearing, limiting device, the arc base is connected on the shell, and is located the opposite side of support main body, the dotted line knife is provided with dotted line bearing, and is rotatably connected on the arc base through the limiting device, art knife, support structure, dotted line cutting structure, three mutually combined uses play a role, can respond to the cutting scene change required, need not to be ready at the same time two; The dotted line cutting structure is located in the front end of art knife non-grasping position, and the dotted line knife can be retracted into the arc base through the limiting device, to avoid safety accidents; When cutting, the support rotating piece is the fulcrum, with the rolling of support rotating piece, the motion trail of art knife blade is followed, when encountering residual adhesive body, can arc base as the fulcrum and pry art knife to cut residual adhesive body, further reduce the cutting difficulty of glass glue for bathroom basin back.
[0013] Preferably, the shape of the support main body is triangular.
[0014] Preferably, the support connecting piece is a rivet.
[0015] Preferably, the support rotating piece is a roller.
[0016] Preferably, one side of the arc base is arc-shaped.
[0017] Preferably, the arc base is provided with a dotted line cutting groove.
[0018] Preferably, the top end of the dotted line cutting groove is provided with a stop port.
[0019] Preferably, the dotted line bearing is a ribbed bearing.
[0020] Preferably, the limiting device comprises a bolt and a square nut, the bolt and the square nut are threadedly connected with each other.
[0021] Preferably, the square nut is shaped to fit the stopper.
[0022] Compared with the prior art, the utility model discloses a multifunctional cutting tool which comprises an art knife, a supporting structure and a dotted line cutting structure.
[0023] The dotted line cutting structure is located at the front end of the art knife and is not gripped, and the dotted line cutter can be retracted into the arc base through the limiting device to avoid safety accidents.
[0024] When cutting, the art knife blade is supported by the supporting rotating part, and the movement track of the art knife blade is continued with the rolling of the supporting rotating part. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is a structural schematic view of the multifunctional cutting tool.
[0026] Figure 2 It is an enlarged structural schematic view of the dotted line cutting structure.
[0027] Figure 3 It is an enlarged structural schematic view of the dotted line cutting structure. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.
[0029] A multifunctional cutting tool comprises an art knife 1, a supporting structure 2 and a dotted line cutting structure 3.
[0030] The pressing and advancing structure 13 is connected to the art knife blade 12, and the art knife blade 12 is telescopically arranged in the shell 11.
[0031] The support structure 2 comprises a support body 21, a support connecting piece 22 and a support rotating piece 23, the support body 21 is connected to the shell 11 and corresponds to the blade edge side of the art knife blade 12, the support rotating piece 23 is rotatably arranged on the support body 21 through the support connecting piece 22, the support body 21 is triangular in shape, the support connecting piece 22 is a rivet, and the support rotating piece 23 is a roller, which can support the cutting track of the art knife blade 12 through rolling, so that the operation is more stable.
[0032] The dotted line cutting structure 3 comprises an arc-shaped base 31, a dotted line cutter 32, a dotted line bearing 33 and a limiting device 34, the arc-shaped base 31 is connected to the shell 11 and located on the opposite side of the support body 21, the dotted line bearing 33 is arranged on the dotted line cutter 32 and rotatably connected to the arc-shaped base 31 through the limiting device 34.
[0033] One side of the arc-shaped base 31 is arc-shaped, which can be used as a support point to pry the art knife 1 when it is necessary to remove residual adhesive.
[0034] The arc-shaped base 31 is provided with a dotted line cutting groove 311, the top end of the dotted line cutting groove 311 is provided with a stop port 3111, the dotted line bearing 33 is a shoulder bearing, which can be normally installed and used, but in order to prevent the bearing from being unable to rotate after the bolt 341 and the square nut 342 are tightened, a snap spring can be additionally arranged on the bolt 341 at the opposite end of the shoulder of the shoulder bearing, so that the rotation is not interfered, the limiting device 34 comprises a bolt 341 and a square nut 342, the bolt 341 and the square nut 342 are threadedly connected to each other, the square nut 342 is adapted in shape to the stop port 3111, and the position of the stop port 3111 is just capable of clamping the square nut 342, the dotted line cutter 32 will have a pushing force upward and backward when it works, and the stop port 3111 has the advantage of assisting in preventing the limiting device 34 from moving upward.
[0035] The pressing and advancing structure 13 normally pushes the art knife blade 12 to extend or retract on the shell 11, when cutting, the support rotating piece 23 is used as a fulcrum, and the movement track of the art knife blade 12 is continued with the rolling of the support rotating piece 23, when encountering residual adhesive, the arc-shaped base 31 can be used as a support point to pry the art knife 1 to cut the residual adhesive, the dotted line cutter 32 can be moved to extend when it is needed, and the stop port 3111 plays a role in assisting in preventing the limiting device 34 from moving upward during use.
[0036] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.
[0037] It should be noted that the terms "first", "second", and the like, herein do not necessarily have an either chronological or spatial relation. Rather, these terms can be used solely to distinguish a certain specific entity from another entity. It should be understood that the terms so used in the description are interchangeable under appropriate circumstances and embodiments of the application described herein are capable of operating in other sequences than described or illustrated herein.
[0038] The preferred embodiments of the present application have been described above with the aid of drawing figures, and are not limited to those embodiments; instead, they will include any changes that do not constitute departures from the spirit and scope of the present application.
Claims
1. A multi-purpose cutting tool characterized by: The utility model provides a cutting device, including art knife (1), support structure (2), dotted line cutting structure (3), art knife (1) includes casing (11), art knife blade (12), pressurized propulsion structure (13), pressurized propulsion structure (13) is connected on art knife blade (12), art knife blade (12) is retractable and is arranged in casing (11), support structure (2) includes support main part (21), support connecting piece (22), support rotating part (23), support main part (21) is connected on casing (11), and corresponds the blade edge side of art knife blade (12), support rotating part (23) is rotatable and is arranged on support main part (21) through support connecting piece (22), dotted line cutting structure (3) includes arc base (31), dotted line knife (32), dotted line bearing (33), limiting device (34), arc base (31) is connected on casing (11), and is located the opposite side of support main part (21), dotted line knife (32) is provided with dotted line bearing (33), and is rotatable and is connected on arc base (31) through limiting device (34).
2. The multi-purpose cutting tool of claim 1, wherein: The support main part (21) is triangular.
3. The multi-purpose cutting tool of claim 1, wherein: The support connecting piece (22) is a rivet.
4. The multi-functional cutting tool of claim 1, wherein: The support rotating part (23) is a roller.
5. The multi-functional cutting tool of claim 1, wherein: The arc base (31) is arc-shaped on one side.
6. The multi-functional cutting tool of claim 1, wherein: The arc base (31) is provided with a dotted line cutting groove (311).
7. The multi-purpose cutting tool of claim 6, wherein: The dotted line cutting groove (311) is provided with a stop opening (3111) at the top end.
8. The multi-functional cutting tool of claim 1, wherein: The dotted line bearing (33) is a shoulder bearing.
9. The multi-functional cutting tool of claim 1, wherein: The limiting device (34) includes a bolt (341) and a square nut (342).
10. The multi-functional cutting tool of claim 9, wherein: The square nut (342) is shaped to fit the stop opening (3111).
Citation Information
Patent Citations
Multifunctional cutter
CN206475211U