Art knife capable of cutting safely

Abstract

The utility model relates to the technical field of art knives, and discloses a safe cutting art knife which comprises a shell, a first fixing block is installed on the upper side of the left end of the shell, sliding rails are fixedly connected to the front side and the rear side of the first fixing block respectively, and check blocks are fixedly connected to the left end and the right end of each sliding rail respectively. A second fixing block is fixedly connected to the lower side of the left end of the check block, first fastening pieces are arranged in the middle of the second fixing block and the middle of the first fixing block in a penetrating mode, and the ends of the first fastening pieces are in threaded connection with the interior of the shell. When the paper cutting device is used for processing and cutting, the rotating plate, the connecting block and the gasket are pushed out, the end of paper is placed above the gasket, the paper is pressed by one hand, the shell is held by the other hand, the check block is bent, the end of the cutting knife is pressed on the paper, the art knife is pulled, the paper is cut, and the paper cutting device is cushioned on a table top through the gasket. And during cutting, the table top can be prevented from being damaged, so that safe cutting is carried out.

Description

Technical Field

[0001] This utility model relates to the field of utility knife technology, and in particular to a safe cutting utility knife. Background Technology

[0002] A utility knife, also known as a carving knife or wallpaper knife, is a type of knife used for art and handicrafts. It is mainly used to cut soft materials and usually consists of two parts: a plastic handle and a blade, with a pull-out design. A few also have metal handles. The blade is usually beveled, and when it becomes dull, it can be broken along the lines on the blade to create a new edge for easy use.

[0003] Traditional utility knives mainly consist of a blade, a handle, and a telescopic mechanism. Their design focuses on cutting efficiency. However, when making vertical cuts, a protective object needs to be placed under the item being cut. Otherwise, the blade will scratch the tabletop through the cut, affecting its appearance and lifespan, and may also damage your own belongings. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a safe cutting utility knife that can prevent damage to the desktop during cutting and improve safety.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A safe cutting utility knife includes a housing. A first fixing block is mounted on the upper left side of the housing. Slide rails are fixedly connected to both the front and rear sides of the first fixing block. Stops are fixedly connected to both the left and right ends of the slide rails. A second fixing block is fixedly connected to the lower left side of the stop blocks. A first fastener is threaded through the middle of both the second fixing block and the first fixing block. The end of the first fastener is threaded into the inside of the housing. A slider is slidably connected to the outer side of the slide rails. A rotating plate is fixedly connected to the left end of the slider. A connecting block is fixedly connected to the lower end of the rotating plate. A gasket is fixedly connected to the lower side of the connecting block. A groove is provided on the upper side of the gasket.

[0007] Furthermore, a left-right movable push block is provided on the inner side of the housing, and a cutting blade for cutting is provided at the left end of the push block inside the housing.

[0008] Furthermore, a tail cap is provided at the right end of the housing, and hooks are fixedly connected to both the upper and lower sides of the left end of the tail cap.

[0009] Furthermore, the upper and lower sides of the right end of the housing are provided with hook grooves for engaging with hooks, and the right end of the housing is provided with a protective plate that moves left and right outside the hook grooves.

[0010] Furthermore, limiting blocks that restrict the protective plate are fixedly connected to both the upper and lower sides of the tail cap.

[0011] Furthermore, a second fastener for fixing is threaded into the middle of the first fixing block.

[0012] Furthermore, the upper and lower right sides of the connecting block are fixedly connected with locking blocks, and the left end of the housing is provided with a locking groove for engaging with the locking blocks.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, when processing and cutting, the rotating plate, connecting block and shim are pushed out, the end of the paper is placed on the shim, one hand holds the paper and the other hand holds the housing, and the stop block is bent to press the end of the cutting blade on the paper. The utility knife is pulled to cut the paper. The shim is placed on the table to avoid damaging the table during cutting, thus making the cutting safe.

[0015] 2. In this utility model, after the tail cap is installed at the tail of the housing, the hook and the hook groove are engaged, and the protective plate is slid to the right to cover the outside of the hook groove and the hook. The protective plate can prevent the hook from tilting outward, thereby improving the stability of the tail cap connection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a safe cutting utility knife proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the rotating plate of a safe cutting utility knife proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of a gasket for a safe cutting utility knife according to the present invention.

[0019] Figure 4 This is a schematic diagram of a protective plate for a utility knife designed for safe cutting, as proposed in this utility model.

[0020] Legend:

[0021] 1. Housing; 2. Push block; 3. Cutting blade; 4. Tail cap; 5. First fixing block; 6. Slide rail; 7. Stop block; 8. Slider; 9. Rotating plate; 10. Connecting block; 11. Gasket; 12. Groove; 13. Second fixing block; 14. First fastener; 15. Second fastener; 16. Locking block; 17. Locking slot; 18. Hook groove; 19. Hook; 20. Limiting block; 21. Protective plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 4 The present invention provides an embodiment of a safe cutting utility knife, comprising a housing 1, a left-right movable push block 2 provided on the inner side of the housing 1, a cutting blade 3 for cutting located inside the housing 1 at the left end of the push block 2, a tail cap 4 provided on the right end of the housing 1, hooks 19 fixedly connected to the upper and lower sides of the left end of the tail cap 4, hook grooves 18 for cooperating with the hooks 19 provided on the upper and lower sides of the right end of the housing 1, a left-right movable protective plate 21 provided outside the hook grooves 18 on the right end of the housing 1, and limiting blocks 20 for restricting the protective plate 21 fixedly connected to the upper and lower sides of the tail cap 4.

[0024] Slide the protective plate 21 to the left to expose the engagement part of the hook 19 and the hook groove 18. Lift the hook 19 upwards to disengage it from the hook groove 18, and then remove the tail cap 4. Take out the old cutting knife 3 through the tail opening, insert a new blade, and reinstall the tail cap 4. The elastic buckle design of the hook 19 and the hook groove 18 ensures a firm installation. After the protective plate 21 slides back to its original position, it covers the joint to prevent the hook 19 from accidentally coming off.

[0025] Reference Figures 1-3 A first fixing block 5 is installed on the upper left side of the housing 1. Slide rails 6 are fixedly connected to both the front and rear sides of the first fixing block 5. Stop blocks 7 are fixedly connected to both the left and right ends of the slide rails 6. A second fixing block 13 is fixedly connected to the lower left side of the stop block 7. A first fastener 14 is passed through the middle of the second fixing block 13 and the first fixing block 5. The end of the first fastener 14 is threaded into the inside of the housing 1. A slider 8 is slidably connected to the outer side of the slide rails 6. A rotating plate 9 is fixedly connected to the left end of the slider 8. A connecting block 10 is fixedly connected to the lower end of the rotating plate 9. A gasket 11 is fixedly connected to the lower side of the connecting block 10. A groove 12 is provided on the upper side of the gasket 11. A second fastener 15 for fixing is threadedly connected to the middle of the first fixing block 5. A locking block 16 is fixedly connected to the right side of both the upper and lower ends of the connecting block 10. A slot 17 for cooperating with the locking block 16 is provided on the left end of the housing 1.

[0026] Rotate the second fastener 15 to release the lock on the slider 8. At this time, the slider 8 can slide freely along the slide rail 6. The stops 7 at both ends of the slide rail 6 prevent the slider 8 from derailing and ensure that the sliding range is controllable. Push the slider 8 forward to drive the rotating plate 9, connecting block 10 and shim 11 to extend out of the housing 1 at the same time. Push the block 2 to slide the cutter 3 out of the housing 1 to the required length. The left and right movement of the push block 2 allows the user to flexibly adjust the blade exposure, taking into account both cutting efficiency and safety. Place the edge of the paper to be cut on the shim 11 and press it with your fingers to fix it. Using the midpoint of the rotating plate 9 as the fulcrum, lift the right end of the housing 1 so that the cutter 3 presses down to contact the paper. Maintain the blade pressure and pull the utility knife horizontally to cut. The shim 11 can prevent the table from being scratched when cutting the paper. Loosen the first fastener 14 to separate the first fixing block 5 and the second fixing block 13, which is convenient for cleaning the slide rail 6 or replacing worn parts.

[0027] Working principle: During cutting, by rotating the second fastener 15, the slider 8 is released from its fixation. Pushing out the rotating plate 9, connecting block 10, and pad 11, and pushing out the cutting blade 3 via the pushing block 2, the end of the paper to be cut is placed on the upper side of the pad 11 and held down. Then, by lifting the right end of the housing 1, the rotating plate 9 rotates through the middle, causing the end of the cutting blade 3 to press against the upper side of the pad 11 and contact the paper. By pulling the utility knife, the cutting blade 3 cuts the paper. The first... The fixing block 5 and the second fixing block 13 are connected to the housing 1 by the first fastener 14 for easy disassembly. When not in use, the connecting block 10 is retracted so that the locking block 16 is inserted into the locking slot 17 to improve stability. The tail cap 4 can be installed and removed for replacing the cutting blade 3. After replacement, the tail cap 4 is inserted into the tail of the housing 1 so that the hook 19 engages with the hook slot 18. Then, the protective plate 21 is slid to the right to move it to the outside of the hook slot 18 and the hook 19. The protective plate 21 blocks the hook 19 to improve stability.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safe cutting utility knife, characterized in that, The device includes a housing (1), on the upper left side of the housing (1) a first fixing block (5) is installed, and slide rails (6) are fixedly connected to both the front and rear sides of the first fixing block (5). Stop blocks (7) are fixedly connected to both the left and right ends of the slide rails (6). A second fixing block (13) is fixedly connected to the lower left side of the stop blocks (7). A first fastener (14) is passed through the middle of the second fixing block (13) and the first fixing block (5). The end of the first fastener (14) is threaded into the inside of the housing (1). A slider (8) is slidably connected to the outer side of the slide rails (6). A rotating plate (9) is fixedly connected to the left end of the slider (8). A connecting block (10) is fixedly connected to the lower end of the rotating plate (9). A gasket (11) is fixedly connected to the lower side of the connecting block (10). A groove (12) is provided on the upper side of the gasket (11).

2. The utility knife for safe cutting according to claim 1, characterized in that: The inner side of the housing (1) is provided with a left-right movable push block (2), and the left end of the push block (2) is provided with a cutting blade (3) for cutting inside the housing (1).

3. The utility knife for safe cutting according to claim 1, characterized in that: The right end of the housing (1) is provided with a tail cap (4), and hooks (19) are fixedly connected to the upper and lower sides of the left end of the tail cap (4).

4. A utility knife for safe cutting according to claim 1, characterized in that: The right end of the housing (1) is provided with hook grooves (18) on both the upper and lower sides for cooperating with the hook (19). The right end of the housing (1) is provided with a protective plate (21) that moves left and right outside the hook grooves (18).

5. A utility knife for safe cutting according to claim 3, characterized in that: The tail cap (4) has a limiting block (20) of the limiting protective plate (21) fixedly connected to both the upper and lower sides.

6. A utility knife for safe cutting according to claim 1, characterized in that: The first fixing block (5) has a second fastener (15) threadedly connected to its middle part for fixing.

7. A utility knife for safe cutting according to claim 1, characterized in that: The upper and lower ends of the connecting block (10) are fixedly connected with the right side of the two ends of the connecting block (10), and the left end of the housing (1) is provided with a slot (17) for cooperating with the slot (16).

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