Multi-functional cutting knife

Abstract

The utility model discloses an embodiment provides a kind of multifunctional cutting knife, it is related to cutter technical field.Multifunctional cutting knife includes shell.One end of shell is provided with retractable art knife mechanism, and the other end of shell is provided with retractable round hob mechanism.Art knife mechanism includes art knife sliding block and art knife blade.Art knife sliding block and art knife blade are connected.Art knife sliding block slides to make art knife blade extend or retract shell.Round hob mechanism includes round hob sliding block and round hob blade.Round hob blade is rotatably connected on round hob sliding block, and round hob sliding block slides to make round hob blade extend or retract shell.The utility model can realize the integration of art knife and round hob function, make a knife have double functions of push-pull cutting and rolling scribe, improve use convenience, operation efficiency and reduce the comprehensive use cost of user.

Description

Technical Field

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

[0002] In everyday scenarios such as home renovation, handicraft making, package unpacking, and model making, utility knives and serrated cutters (also known as rotary cutters or hook cutters) are two of the most commonly used cutting tools. Utility knives are mainly used for cutting soft materials such as cardboard, tape, and rope. Serrated cutters are used for precisely cutting materials such as leather, canvas, wallpaper, or acrylic sheets; their circular rotating blades enable smooth, uniform linear cuts.

[0003] Currently, both of these tools on the market have relatively limited functions. Utility knives only have a flat-blade cutting function, while crease cutters can only perform crease marking or cutting. If users need to handle different work scenarios, they must carry both tools simultaneously. This not only increases the cost of purchasing tools but also brings inconvenience to tool storage, safekeeping, and carrying, making it easy to miss or lose them, thus affecting work efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-functional cutting knife that integrates the functions of a utility knife and a rotary cutter, enabling a single knife to perform both push-pull cutting and rolling marking functions, thereby improving ease of use, work efficiency, and reducing the overall cost of use for users.

[0005] The embodiments of this utility model can be implemented as follows: This utility model provides a multi-functional cutting knife, including a housing, one end of which is provided with a retractable utility knife mechanism, and the other end of which is provided with a retractable cylindrical cutter mechanism; The utility knife mechanism includes a utility knife slider and a utility knife blade, the utility knife slider and the utility knife blade are connected, and the utility knife slider slides to allow the utility knife blade to extend or retract into the housing; The circular hobbing mechanism includes a circular hobbing slider and a circular hobbing blade. The circular hobbing blade is rotatably connected to the circular hobbing slider, and the circular hobbing slider slides to extend or retract the circular hobbing blade from the housing.

[0006] In an optional embodiment, the housing includes a first housing and a second housing that are separable from each other, the utility knife mechanism is located in the first housing and the utility knife blade is at least partially protruding from one side of the first housing, and the rotary cutter mechanism is located in the second housing and the rotary cutter blade is at least partially protruding from one side of the second housing.

[0007] The first and second shells can be separated and used independently. When only a utility knife or a round cutter is needed, the first and second shells can be separated for separate storage and use, or they can be spliced ​​together to meet various different usage needs.

[0008] In an optional embodiment, the second housing is provided with a groove for breaking the blade, the groove being located on the side of the second housing opposite to the direction in which the cylindrical blade extends.

[0009] In an optional embodiment, the first housing or the second housing is provided with a storage cavity for storing the blade.

[0010] In an optional embodiment, the first housing and the second housing are threaded, snap-fitted, or magnetically connected.

[0011] In an optional embodiment, the housing is provided with a first groove for the utility knife slider to slide along, and the utility knife slider can slide along the first groove to extend or retract the utility knife blade into the housing.

[0012] In an optional embodiment, the utility knife slider protrudes from the side of the housing, and the surface of the utility knife slider protruding from the housing is provided with a first anti-slip texture.

[0013] In an optional embodiment, the housing is provided with a second groove for the circular hob slider to slide along, so that the circular hob blade extends or retracts into the housing.

[0014] In an optional embodiment, a rotating shaft is fixedly mounted on the circular hob slider, and the circular hob blade is detachably rotatably connected to the rotating shaft.

[0015] In an optional embodiment, the circular hob slider protrudes from the side of the housing, and the surface of the circular hob slider protruding from the housing is provided with a second anti-slip texture.

[0016] In an optional embodiment, the storage cavity has an opening on the housing, and the opening is provided with an openable and closable cover plate, which is detachably connected to the housing by a snap fastener.

[0017] The beneficial effects of the multi-functional cutting knife provided in this embodiment of the utility model include: This utility model provides a multi-functional cutting knife including a housing. One end of the housing is equipped with a retractable utility knife mechanism, and the other end is equipped with a retractable rotary cutting mechanism. By integrating the retractable utility knife mechanism and the retractable rotary cutting mechanism at both ends of the same housing, the functions of flat-blade cutting and rotary marking are integrated. This utility model integrates the functions of a utility knife and a rotary cutting tool, enabling a single knife to perform both push-pull cutting and rotary marking functions, improving ease of use, work efficiency, and reducing the user's overall operating costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the multi-functional cutting knife provided in this embodiment; Figure 2 This is a schematic diagram of the structure of the multi-functional cutting knife / plaster blade provided in this embodiment when it is extended; Figure 3 This is a schematic diagram of the structure of the multi-functional cutting blade with the cylindrical blade extended as shown in this embodiment.

[0020] Icons: 100-Multi-functional cutting knife; 10-House; 11-First groove; 12-Second groove; 13-Cavity; 14-First housing; 15-Second housing; 20-Utility knife mechanism; 21-Utility knife slider; 22-Utility knife blade; 221-Pre-marking; 30-Circular roller mechanism; 31-Circular roller slider; 311-Rotating shaft; 32-Circular roller blade. Detailed Implementation

[0021] In related technologies, utility knives and rotary cutters are different cutting tools with a single-function design, which can only perform basic cutting operations and cannot meet the needs of different cutting scenarios.

[0022] To address the aforementioned issues, this utility model provides a multi-functional cutting knife. By integrating a retractable utility knife mechanism and a rotary cutting mechanism at both ends of the housing, it achieves integrated cutting and marking, effectively avoiding multiple knife changes and significantly improving work convenience and efficiency.

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0028] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0029] The following describes in detail the overall structure, working principle, and technical effects of the multi-functional cutting knife provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0030] Please refer to Figures 1-3 This utility model provides a multi-functional cutting knife 100, including a housing 10. One end of the housing 10 is provided with a retractable utility knife mechanism 20, and the other end of the housing 10 is provided with a retractable cylindrical cutter structure.

[0031] By integrating the utility knife mechanism 20 and the rotary cutter mechanism 30 into the same housing 10, users can quickly switch between different cutting modes on a single tool, thereby significantly improving job adaptability and operational efficiency, and effectively reducing the number of tools required.

[0032] Among them, the utility knife mechanism 20 is used to perform straight push-pull cutting operations on materials such as paper, tape, and cardboard; the rotary cutter mechanism 30 is used to perform rolling scribing or precision cutting operations on materials such as leather, wallpaper, and composite materials.

[0033] Specifically, the utility knife mechanism 20 includes a utility knife slider 21 and a utility knife blade 22. The utility knife slider 21 and the utility knife blade 22 are fixedly connected. The utility knife slider 21 slides to extend or retract the utility knife blade 22 into the housing 10. Pushing the utility knife slider 21 can cause it to extend the utility knife blade 22 from one end of the housing 10 to the working position, or retract it into the housing 10, thus achieving safe carrying and quick switching functionality.

[0034] The circular cutter mechanism 30 includes a circular cutter slider 31 and a circular cutter blade 32. The circular cutter blade 32 is rotatably connected to the circular cutter slider 31. The circular cutter slider 31 slides to extend or retract the circular cutter blade 32 into the housing 10. Pushing the circular cutter slider 31 can drive the circular cutter blade 32 out of the housing 10 to the working position for rolling cuts, or retract it into the housing 10 for safe storage.

[0035] Furthermore, the housing 10 includes a first housing 14 and a second housing 15 that are detachable from each other. A utility knife mechanism 20 is located in the first housing 14. A utility knife blade 22 is at least partially protruding from one side of the first housing 14. A rotary cutter mechanism 30 is located in the second housing 15. A rotary cutter blade 32 is at least partially protruding from one side of the second housing 15. Specifically, the first housing 14 and the second housing 15 are joined along the length of the multi-functional cutting knife 100. The first housing 14 and the second housing 15 can be detachably connected using threaded fasteners, snap-fit ​​mechanisms, magnetic attraction, or other structures.

[0036] The first and second shells can be separated and used independently. When only a utility knife or a round cutter is needed, the first and second shells can be separated for separate storage and use, or they can be joined together to meet various usage needs.

[0037] Furthermore, in this embodiment, the second housing 15 is provided with a groove for breaking off the blade. The groove is located on the side of the second housing 15 opposite to the protruding direction of the cylindrical blade 32. That is, the groove is located on the side where the second housing 15 is connected to the first housing 14. It can be understood that by separating the second housing 15 from the first housing 14, the utility blade 22 protruding from the first housing 14 away from the second housing 15 can be inserted into the groove of the second housing 15. By bending the first housing 14 and the second housing 15, the utility blade 22 can be broken off.

[0038] It should be noted that the utility knife blade 22 has a multi-segment structure. Pre-indentations 221 are spaced along the sides of the utility knife blade 22 to facilitate cutting. These pre-indentations 221 allow for the removal of worn sections by manual breaking after the tip of the utility knife blade 22 has worn down, exposing the subsequent sharp section and thus extending the cutting effectiveness of the utility knife blade 22. In this embodiment, the end segment of the utility knife blade 22 is inserted into the groove. Bending the first housing 14 and the second housing 15 breaks off the end segment of the utility knife blade 22.

[0039] In this embodiment, the housing 10 has a first groove 11 for the utility knife slider 21 to slide. Specifically, the first groove 11 is formed on the first housing 14. The utility knife slider 21 can slide along the first groove 11 to extend or retract the utility knife blade 22 into the housing 10. Specifically, the first groove 11 is an elongated guide groove provided on the side of the first housing 14. The utility knife slider 21 is accommodated within the first groove 11.

[0040] In this embodiment, along a direction perpendicular to the sliding direction of the utility knife blade 22, the utility knife slider 21 protrudes from the side of the housing 10, and the surface of the utility knife slider 21 protruding from the housing 10 is provided with a first anti-slip texture. It is understood that a first groove 11 is formed on the side of the housing 10. A sliding cavity for receiving the utility knife blade 22 is provided inside the housing 10. The sliding cavity communicates with the outside of the housing 10 through the first groove 11. The utility knife slider 21 is disposed within the first groove 11. One side of the utility knife slider 21 is fixedly connected to the utility knife blade 22 inside the housing 10, and the other side of the utility knife slider extends outward from the outside of the housing 10 through the first groove 11, forming an operating part protruding from the housing 10. The surface of this protruding part is provided with a first anti-slip texture to enhance friction and facilitate user finger pushing and pulling operation.

[0041] When in use, the operator holds the housing 10 and pushes the utility knife slider 21 protruding from the surface of the housing 10 with their fingers, which will cause the utility knife blade 22 to extend out of the housing 10 along the sliding cavity for cutting operations, or retract into the cavity for safe storage.

[0042] Specifically, a second groove 12 is provided on the housing 10 for the circular cutter slider 31 to slide, and the second groove 12 is formed on the second housing 15. The circular cutter slider 31 slides to allow the circular cutter blade 32 to extend or retract into the housing 10. By pushing the circular cutter slider 31 along the second groove 12, the circular cutter blade 32 can be driven to extend out of the housing 10 to the working position for rolling cutting, or retracted into the housing 10 for safe storage. Specifically, the second groove 12 is a guide groove provided on the side of the second housing 15. The circular cutter slider 31 is accommodated in the second groove 12.

[0043] Understandably, the aforementioned utility knife blade 22 is used for push-pull linear cutting of materials such as paper, tape, and cardboard, while the circular roller blade 32 is used for rolling linear slicing or precise division of surfaces such as leather, wallpaper, and composite materials. The circular roller blade 32 rolls forward on the material surface, using its sharp circumferential cutting edge to perform continuous, uniform linear slicing or penetrating cuts. During this process, the circular roller blade 32 can rotate freely relative to the circular roller slider 31 and the housing 10, thereby effectively reducing propulsion resistance and ensuring a smooth and flat cut.

[0044] In this embodiment, a rotating shaft 311 is fixedly mounted on the circular cutter slider 31. The circular cutter blade 32 is detachably rotatably connected to the rotating shaft 311. Specifically, in this embodiment, the circular cutter blade 32 has a ring-shaped structure, and the central hole of the circular cutter blade 32 is fitted onto the rotating shaft 311, so that the circular cutter blade 32 can rotate around the axis of the rotating shaft 311. A cavity 13 is provided at one end of the housing 10. When the circular cutter slider 31 slides and the circular cutter blade 32 retracts, the circular cutter blade 32 is entirely housed in the cavity 13, and its sharp circumferential cutting edge is recessed relative to the end face of the housing 10, thereby effectively preventing accidental scratching or damage to other objects and improving the safety of carrying and storing the tool.

[0045] Furthermore, the housing 10 has a replacement port on its side that communicates with the cavity 13. The replacement port allows the circular flat portion or all of the circular roller blade 32 housed in the cavity 13 to be exposed. When it is necessary to replace the circular roller blade 32, the user can directly access and operate the circular roller blade 32 through the replacement port, remove it from the rotating shaft 311 and replace it, without having to disassemble the entire slider mechanism, making the operation extremely convenient.

[0046] Furthermore, in a direction perpendicular to the sliding direction of the rotary cutter 32, the rotary cutter slider 31 protrudes from the side of the housing 10. The surface of the rotary cutter slider 31 protruding from the housing 10 is provided with a second anti-slip texture. The rotary cutter slider 31 protrudes from the side of the housing 10 in a transverse direction perpendicular to its sliding direction. The surface of this protruding portion is machined with the second anti-slip texture to increase frictional resistance, prevent slippage during operation, and allow the user to push the slider more stably and effortlessly, precisely controlling the extension and retraction of the rotary cutter 32.

[0047] In this embodiment, to prevent the circular hob from slipping out of the second slide groove 12, a limiting mechanism (not shown) is also provided on the housing 10. The limiting mechanism is used to reliably limit the circular hob slider 31 when it slides to the maximum extended position and the fully retracted position, while allowing the circular hob slider 31 to slide smoothly within the second slide groove 12.

[0048] Specifically, the limiting mechanism can be set as a limiting block. When the circular hob slider 31 slides to the maximum extended position and the fully retracted position, the circular hob slider 31 abuts against the limiting block to limit further movement of the circular hob slider 31.

[0049] It is understood that the limiting mechanism may also adopt other structural forms that can achieve the same function, such as, but not limited to, elastic buckles, limiting protrusions, or magnetic attraction components. As long as it can provide effective limiting and blocking when the circular hob slider 31 slides to the end of its stroke to prevent it from disengaging, this utility model does not limit it in this respect.

[0050] Furthermore, the first housing 14 and / or the second housing 15 are also provided with blade storage cavities (not shown). The storage cavity of the first housing 14 is used to store utility knife blades 22, and the storage cavity of the second housing 15 is used to store rotary blades 32. These storage cavities are used to store spare blades of different specifications or types, allowing users to quickly access and replace them as needed at the work site, thus ensuring the continuity and efficiency of the work.

[0051] In this embodiment, the storage cavity has an opening on the housing 10. An openable and closable cover is provided at the opening. The cover is detachably connected to the housing 10 via a snap-fit ​​mechanism. This allows for convenient opening and reliable closing of the storage cavity.

[0052] Furthermore, a positioning post is fixedly installed inside the storage cavity of the second housing 15. Multiple spare cylindrical blades 32 are sequentially fitted onto the positioning post. It can be understood that by setting the positioning post, the multiple spare cylindrical blades 32 are neatly placed inside the storage cavity, preventing the cylindrical blades 32 from scattering due to shaking of the housing 10.

[0053] The beneficial effects of the multi-functional cutting knife 100 provided in this embodiment of the utility model include: The multi-functional cutting knife 100 provided by this utility model includes a housing 10. One end of the housing 10 is provided with a retractable utility knife mechanism 20, and the other end is provided with a retractable rotary cutting mechanism 30. By integrating the retractable utility knife mechanism 20 and the retractable rotary cutting mechanism 30 at both ends of the same housing 10, the functions of flat-blade cutting and rotary marking are integrated. This utility model integrates the functions of a utility knife and a rotary cutting tool, enabling a single knife to perform both push-pull cutting and rotary marking functions, improving ease of use, work efficiency, and reducing the user's overall operating costs.

[0054] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-functional cutting knife, characterized in that, Includes a housing, one end of which is provided with a retractable utility knife mechanism, and the other end of which is provided with a retractable rotary cutter mechanism; The utility knife mechanism includes a utility knife slider and a utility knife blade, the utility knife slider and the utility knife blade are connected, and the utility knife slider slides to extend or retract the utility knife blade into the housing; The circular hobbing mechanism includes a circular hobbing slider and a circular hobbing blade. The circular hobbing blade is rotatably connected to the circular hobbing slider, and the circular hobbing slider slides to extend or retract the circular hobbing blade from the housing.

2. The multi-functional cutting knife according to claim 1, characterized in that, The housing includes a first housing and a second housing that can be separated from each other. The utility knife mechanism is located in the first housing, and the utility knife blade can extend at least partially from one side of the first housing. The rotary cutter mechanism is located in the second housing, and the rotary cutter blade can extend at least partially from one side of the second housing.

3. The multi-functional cutting blade according to claim 2, characterized in that, The second housing is provided with a groove for breaking the utility knife blade, and the groove is located on the side of the second housing opposite to the direction in which the round blade extends.

4. The multi-functional cutting knife according to claim 2, characterized in that, The first housing and / or the second housing are provided with a storage cavity for storing the blade.

5. The multi-functional cutting knife according to claim 2, characterized in that, The first housing and the second housing are connected by threads, snap-fit, or magnetic attraction.

6. The multi-functional cutting blade according to claim 1, characterized in that, The housing has a first groove for the utility knife slider to slide along, and the utility knife slider can slide along the first groove to extend or retract the utility knife blade into the housing.

7. The multi-functional cutting knife according to claim 1, characterized in that, The housing has a second groove for the circular cutter slider to slide along, and the circular cutter slider can slide along the second groove to allow the circular cutter blade to extend or retract into the housing.

8. The multi-functional cutting blade according to claim 1, characterized in that, A rotating shaft is fixedly mounted on the circular hob slider, and the circular hob blade is detachably rotatably connected to the rotating shaft.

9. The multi-functional cutting knife according to claim 1, characterized in that, The utility knife slider protrudes from the side of the housing, and the surface of the utility knife slider protruding from the housing is provided with a first anti-slip texture; the round roller slider protrudes from the side of the housing, and the surface of the round roller slider protruding from the housing is provided with a second anti-slip texture.

10. The multi-functional cutting blade according to claim 4, characterized in that, The storage cavity has an opening on the housing, and an openable cover is provided at the opening. The cover is detachably connected to the housing by a snap fastener.

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