Art knife with LED lighting function

By integrating a square channel and LED light on the side of the utility knife holder, and using the push-pull action of the battery base to control the circuit on and off, the problem of precise lighting in low light conditions is solved, achieving high-precision cutting and convenient operation, and improving the ability to work in low-light scenarios.

CN121572372APending Publication Date: 2026-02-27冷丹丹
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Patent Information

Application Number
CN202610035251.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-12
Publication Date
2026-02-27

AI Technical Summary

Technical Problem

Existing utility knives struggle to provide precise illumination when operating in dimly lit or shadowy areas, making it difficult to control the cutting path, leading to errors and safety hazards, and failing to meet the high-precision operation requirements in complex scenarios.

Method used

A square channel is integrated on the side of the utility knife's handle to install a square LED light and a CR425 cylindrical battery. The circuit is controlled by pushing and pulling the battery base to turn the lighting function on and off. The LED light shines towards the working area of ​​the blade, ensuring that the blade's normal cutting function is not affected.

Benefits of technology

In low-light conditions, the LED light can precisely illuminate the blade's working area, improving operational accuracy. It is easy to operate without affecting the smoothness of cutting, maintaining the grip and appearance of a traditional utility knife. Battery replacement is simple, making it suitable for various low-light scenarios.

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    Figure CN121572372A_ABST
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Abstract

The invention relates to the technical field of art knives, and discloses an art knife with an LED lighting function. The cutting tool comprises a tool rest, an LED lamp, a square channel, a CR425 cylindrical battery, a battery base and a blade. A square channel with the same width as the knife body is arranged on the side face of the knife rest, an LED lamp is arranged on the upper portion of the channel, a CR425 cylindrical battery is arranged on the lower portion of the channel, a battery base is of a shallow structure, and the lighting function is achieved by pushing and pulling the battery base to control on-off of a circuit. The blade is a conventional 9mm art knife blade. The problem that an art knife is low in operation precision in dark light scenes (such as automobile film pasting, fine carving and manual manufacturing) is solved, the multifunctional art knife has the advantages of being compact in structure, convenient and fast to operate and wide in application scene, the cutting function and the lighting function are integrated, the operation precision and efficiency are effectively improved, and practicability is high.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of art knives, in particular to an art knife with LED lighting function. BACKGROUND

[0002] The existing art knives are widely used in cutting, carving, automobile film pasting and other scenes. However, when working in dim light or shadow area (such as automobile interior film pasting, fine material carving, fine line cutting of drawing materials, etc.), it is difficult to accurately control the cutting path due to the lack of lighting, which may cause errors and even safety hazards, and cannot meet the high-precision operation requirements in complex scenes. The art knives on the market only have conventional cutting functions and cannot solve the lighting problem in dark places. SUMMARY

[0003] Structural composition Knife holder: adopt the conventional art knife holder structure on the market, as the overall support basis, the material is ABS plastic integrally injection molded to ensure the structural strength and holding comfort, and adapt to the operation habit of existing art knives.

[0004] LED lamp: a square lamp body installed on the upper part of the square channel on the side of the knife holder, used for providing lighting, the lamp body is matched with the upper space of the channel, and the light is directed to the working area of the knife head.

[0005] Square channel: integrally cast with the side of the knife holder and has the same width as the knife body, which does not affect the overall appearance and holding feeling of the art knife. The upper part of the channel accommodates the LED lamp, and the lower part is used to place the CR425 cylindrical battery, realizing the integration of the lighting assembly and the knife holder.

[0006] CR425 cylindrical battery: power supply for the LED lamp, the battery size is matched with the lower space of the square channel to ensure stable installation.

[0007] Battery base: sleeved on the tail of 1 / 3 of the CR425 cylindrical battery, made of insulating plastic. Push the base forward to make the negative electrode of the remaining 2 / 3 of the battery and the negative electrode of the LED lamp connected, the positive electrode and the positive electrode of the LED lamp connected, and the LED lamp lit. Pull the base back 2mm, the circuit is disconnected, the LED lamp is extinguished, and the lighting switch control is realized by simple push-pull action.

[0008] Blade: adopt the conventional 9mm art knife blade on the market, installed at the front end of the knife holder, with the conventional cutting function of art knife (such as stretching, breaking and replacing blade, etc.), without interference with the lighting assembly.

[0009] Working principle By integrating a square channel with the same width on the side of the knife holder, the LED lamp and the CR425 cylindrical battery are placed in the upper and lower parts of the channel respectively, and the push-pull action of the battery base is used to control the circuit on-off: Lighting on: Push the battery base forward, the positive and negative electrodes of the battery and the positive and negative electrodes of the LED lamp are accurately connected, the circuit is turned on, the LED lamp emits light, and the cutting head operation area is illuminated; Lighting off: Pull the battery base back 2 mm, the battery and the LED lamp electrode are separated, the circuit is disconnected, and the LED lamp is extinguished; Cutting operation: control the blade extension through the conventional push button of the knife holder (use the structure of the market art knife, not shown in the figure), perform cutting operation, the operation logic is consistent with the ordinary art knife, and the lighting function does not affect the original cutting operation.

[0010] Assembly of components LED lamp installation: embed the square LED lamp into the upper preset clamping groove of the square channel of the knife holder, fix it with glue or buckle, and ensure that the lamp body is stable and the light is directed towards the cutting head; Battery and base assembly: put the CR425 cylindrical battery into the lower space of the channel, and put the battery base on the tail of the battery 1 / 3, the inner wall of the base is provided with anti-slip texture (convenient for push-pull operation); Blade assembly: according to the conventional art knife assembly process, insert the blade into the blade slot at the front end of the knife holder, and lock it through the push button to complete the overall assembly.

[0011] Usage operation Lighting on: in the case of insufficient light, push the battery base forward to make the battery and the LED lamp electrode connected, the LED lamp is lit, and the cutting head cutting area is illuminated; Lighting off: when the operation is completed or the light is sufficient, pull the battery base back 2 mm to disconnect the circuit, and the LED lamp is extinguished; Cutting operation: control the blade extension through the conventional push button of the knife holder (not shown in the figure, use the structure of the market art knife), perform cutting operation, which is consistent with the operation of the ordinary art knife.

[0012] Wide application scenarios: suitable for car film (shadow area lighting), fine carving, drawing material cutting and other insufficient light scenes, solving the problem of difficult precise cutting in dark places, such as car interior film, small material carving, LED lamp can accurately illuminate the cutting head operation area, and improve the operation precision.

[0013] Compact structure: the LED lighting assembly is integrated with the knife holder (the channel and the knife holder are the same width), the channel and the knife holder are seamlessly connected by ABS plastic casting, without changing the original holding feeling and appearance of the art knife, considering the function expansion and portability, users have no learning cost, and the operation habit of the traditional art knife is retained.

[0014] Convenient operation: the opening and closing of the lighting can be realized by the push-pull action of the battery base, the circuit is quickly turned on when the push is combined, the LED lamp is instantaneously turned on, and the power is quickly turned off when it is pulled back 2mm, without additional switch components, the lighting control can be completed by one hand during the operation process, without affecting the continuity of the cutting operation.

[0015] Endurance and adaptability: CR425 cylindrical battery is selected, which is small in size and suitable in capacity, can provide stable endurance for the LED lamp, the battery and the lower space of the channel are accurately matched, the installation is stable, and when replacing, the battery can be easily replaced by pulling out the base, and the maintenance is simple. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 : the main structure diagram of the art knife with LED lighting function, which shows the core structure of the blade body, the pushing part and the like.

[0017] Figure 2 : the art knife is various perspective and component disassembly schematic diagram, clearly present side top view, front view, side bottom view, blade view and battery base view, show the structure of each component and the form of different perspective.

[0018] Among them: 1 - knife holder; 2 - LED lamp; 3 - square channel; 4 - CR425 cylindrical battery; 5 - battery base; 6 - blade. DETAILED DESCRIPTION

[0019] Structure composition Knife holder (1): the conventional art knife holder structure on the market is adopted, which is used as the overall support basis, the material is selected from ABS plastic, which is integrally injection molded, so as to ensure the structural strength and comfortable holding, and adapt to the operation habit of the existing art knife.

[0020] LED lamp (2): the square lamp body is installed on the upper part of the square channel (3) on the side of the knife holder, which is used for providing lighting, the lamp body is matched with the upper space of the channel, and the light is directed to the operation area of the blade.

[0021] Square channel (3): it is integrally cast with the side of the knife holder (1) and has the same width as the blade, so that the width of the channel is consistent with the blade, without affecting the overall appearance and holding feeling of the art knife. The upper part of the channel accommodates the LED lamp (2), and the lower part is used for placing the CR425 cylindrical battery (4), so as to realize the integration of the lighting assembly and the knife holder.

[0022] CR425 cylindrical battery (4): it supplies power for the LED lamp (2), the size of the battery is matched with the lower space of the square channel (3), so as to ensure stable installation.

[0023] Battery base (5): It is fitted onto the tail 1 / 3 of the CR425 cylindrical battery (4) and is made of insulating plastic. Push the base forward so that the negative terminal of the remaining 2 / 3 of the battery is connected to the negative terminal of the LED lamp (2) and the positive terminal is connected to the positive terminal of the LED lamp (2), and the LED lamp lights up; pull the base back 2 mm to disconnect the circuit and turn off the LED lamp. The lighting switch is controlled by a simple push and pull action.

[0024] Blade (6): Uses a standard 9 mm utility knife blade, installed at the front end of the knife holder (1), and has the standard cutting functions of a utility knife (such as telescopic, break-off and blade replacement, etc.), without interfering with the lighting components.

[0025] Working principle By integrating a square channel (3) of the same width on the side of the tool holder (1), the LED light (2) and the CR425 cylindrical battery (4) are placed at the top and bottom of the channel respectively, and the circuit is controlled by the push-pull action of the battery base (5): Lighting on: Push the battery base (5) forward, and the positive and negative terminals of the battery (4) are precisely connected to the positive and negative terminals of the LED light (2). The circuit is connected, and the LED light (2) lights up, illuminating the cutting head working area. Lighting off: Pull the battery base (5) back 2 mm, the battery separates from the LED lamp electrode, the circuit is broken, and the LED lamp (2) goes out; Cutting operation: The blade (6) is extended and retracted by the conventional push button of the blade holder (1) (using the structure of commercial utility knives, not shown in the figure) to carry out the cutting operation. The operation logic is the same as that of ordinary utility knives. The lighting function does not affect the original cutting operation.

[0026] Component assembly LED light installation: Embed the square LED light (2) into the pre-set slot at the top of the square channel (3) of the blade holder (1), and fix it by adhesive or buckle to ensure that the light body is stable and the light is directed towards the blade head; Battery and base assembly: Place the CR425 cylindrical battery (4) into the lower space of the channel (3), and put the battery base (5) on the 1 / 3 of the battery tail. The inner wall of the base is provided with anti-slip texture (for easy push and pull operation). Blade assembly: Following the standard utility knife assembly process, insert the blade (6) into the blade slot at the front end of the knife holder (1), lock it with the push button, and complete the overall assembly.

[0027] Usage Operation Lighting on: In low light conditions, push the battery base (5) forward to connect the battery (4) with the LED light (2) electrode, and the LED light will turn on to illuminate the cutting area of ​​the blade. Light off: when the work is done or the light is sufficient, pull the battery base (5) 2mm backward, disconnect the circuit, and the LED light is off. Cutting operation: the extension and retraction of the blade (6) is controlled by the conventional push button (not shown in the figure, following the structure of the market art knife) of the knife holder (1), and the cutting operation is consistent with the operation of the ordinary art knife.

Claims

1. An art knife with LED lighting function, characterized in that, The utility model relates to a multifunctional knife, which comprises a knife body (1), a square LED lamp (2), a tubular battery compartment (3), a CR425 battery (4), a battery base (5) and a blade (6).

2. The utility knife of claim 1, wherein, A square mounting groove is arranged at the lower end of the front end of the knife body (1) and is integrally connected with the knife body, and the square LED lamp (2) is embedded at the front end of the square mounting groove.

3. The utility knife of claim 1, wherein, The tubular battery compartment (3) is arranged in the knife body (1) and is in communication with the square mounting groove at the front end and is adapted to the CR425 battery (4) and the battery base (5) at the rear end.

4. The utility knife of claim 1, wherein, The battery base (5) is sleeved on the tail of the CR425 battery (4) at a position of 1 / 3 of the tail, and the battery base (5) can be pushed to move the CR425 battery (4) forward along the tubular battery compartment (3), at this time, the positive electrode of the CR425 battery (4) is in direct contact with the positive electrode of the square LED lamp (2), the outer wall is in direct connection with the negative electrode of the square LED lamp (2), the circuit is conducted, and the square LED lamp (2) is lighted.

5. The utility knife of claim 1, wherein, The battery base (5) can be pulled to move the CR425 battery (4) backward along the tubular battery compartment (3), at this time, the positive electrode of the CR425 battery (4) is disconnected with the positive electrode of the square LED lamp (2), the outer wall is disconnected with the negative electrode of the square LED lamp (2), the circuit is disconnected, and the square LED lamp (2) is extinguished.

6. The utility knife of claim 1, wherein, The knife body (1) is provided with a sliding groove on the side surface, and a push plate is slidingly connected in the sliding groove and used for pushing the blade (6) to extend or retract.

7. The utility knife of claim 1, wherein, The tail of the knife body (1) is integrated with the functions of limiting, retracting and assisting in replacing the blade (6), so that the overall replacement of the blade (6) can be completed without additional tools.

8. The utility knife of claim 1, wherein, The front end of the tubular battery compartment (3) is a square section and is adapted to the installation of the square LED lamp (2), and the rear end is adapted to the push-pull action of the CR425 battery (4) and the battery base (5).

9. The utility knife of claim 1, wherein, The CR425 battery (4) supports the square LED lamp (2) to continuously illuminate for more than 8 hours.