Paper cutter

Abstract

The utility model relates to the technical field of paper cutters, and discloses a paper cutter which comprises a handle and a cutter body, the cutter body is connected inside the handle in a sliding mode, a cutting edge is arranged on one side of the cutter body, a tooth cutting edge is arranged on one side, away from the cutting edge, of the cutter body, a connecting port is arranged at the rear end of the cutter body, a plurality of sawteeth are arranged on the tooth cutting edge, and the connecting port is connected with the cutter body. The top end of the grip is connected with a plurality of sawteeth, the right end of the knife body is fixedly connected with an adjusting assembly for adjusting the distance of the knife body, the right side of the inner wall of the grip is fixedly connected with a supporting plate, the left end of the grip is slidably connected with two pressing plates, and the close sides of the two pressing plates are fixedly connected with springs. According to the paper knife, the knife edge is ground on one side of the knife body, and the saw blade is formed on the other side of the knife body through the sawteeth, so that the paper knife can be used for sawing and pulling thicker objects, the functionality of the paper knife is improved, and the working efficiency is improved.

Description

Technical Field

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

[0002] A paper cutter is a tool used for cutting paper. It typically has a sharp blade mounted on a handle or holder. The shape and material of the paper cutter blade can vary; common blades are made of steel, and some blades are straight-edged, while others have wavy edges. Wavy blades increase friction when cutting paper, making the cut more precise.

[0003] First, hold the cutter in your right hand, finding a comfortable grip position, and align the blade with the edge of the paper. If precise cutting is required, you can draw the cutting lines beforehand. Next, gently press the blade against the starting point of the paper and cut a little in. Then, push the cutter forward at a steady speed, ensuring it doesn't deviate, until the paper is completely cut.

[0004] In existing technologies, some paper cutters have relatively simple functions, mainly used for slicing, cutting, and shaving. When the material is thicker and harder, slicing, cutting, and shaving become inefficient, laborious, and produce poor cut results. Therefore, in order to address these shortcomings, a new paper cutter is proposed to solve the above problems. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a paper cutter, which aims to improve the problem that some existing paper cutters offer limited usage options and are time-consuming and laborious to cut when encountering objects of different hardness, resulting in reduced efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A paper cutter includes a handle and a blade. The blade is slidably connected to the inside of the handle. A cutting edge is provided on one side of the blade, and a toothed cutting edge is provided on the side of the blade away from the cutting edge. A connecting port is provided at the rear end of the blade. Multiple serrations are provided on the toothed cutting edge. The top of the handle is connected to the multiple serrations. An adjusting component for adjusting the distance of the blade is fixedly connected to the right end of the blade. A support plate is fixedly connected to the right side of the inner wall of the handle. Two pressing plates are slidably connected to the left end of the handle. A spring is fixedly connected to the adjacent side of each of the two pressing plates. Side plates are fixedly connected to the front and rear sides of each pressing plate. A limit shaft is fixedly connected to the top side of each side plate.

[0008] As a further description of the above technical solution:

[0009] Both ends of the grip are fixedly connected to rubber frames, and multiple arc-shaped openings are provided on the opposite sides of the two rubber frames. Protective frames are fixedly connected to the four corners of the grip.

[0010] As a further description of the above technical solution:

[0011] The adjustment assembly includes two connecting posts, the two connecting posts are slidably connected to the connecting port on the right end of the blade, the rear ends of the two connecting posts are fixedly connected to a connecting plate, the front right end of the connecting plate is fixedly connected to a square block, the inside of the square block is rotatably connected to a rotating plate, the front side of the rotating plate is fixedly connected to a push block, the rear side of the push block is fixedly connected to a torsion spring, the rear left end of the rotating plate is fixedly connected to a limit plate, and the front side of the handle has multiple limit openings.

[0012] As a further description of the above technical solution:

[0013] The outer side of the connecting plate is slidably connected to the inside of the grip, and the outer side of the square block is slidably connected to the inside of the grip;

[0014] As a further description of the above technical solution:

[0015] The bottom end of the spring is fixedly connected to the top side of the support plate, and the outside of the limiting plate is slidably connected to the inside of the limiting opening;

[0016] As a further description of the above technical solution:

[0017] The upper and lower ends of the grip are slidably connected to sliding frames, and cylindrical openings are provided on the far sides of the two sliding frames. The outer side of the limiting shaft is slidably connected to the inside of the cylindrical openings, and a strip opening is provided in the middle of the sliding frames.

[0018] As a further description of the above technical solution:

[0019] An auxiliary block is fixedly connected to the top left end of the sliding frame, and the inside of the strip-shaped opening is slidably connected to the outside of the limiting shaft.

[0020] As a further description of the above technical solution:

[0021] The two side plates are slidably connected to the upper and lower ends of the grip, respectively, and the push block is slidably connected to the inner wall of the square block.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by grinding a cutting edge on one side of the blade and forming a saw blade with multiple serrations on the other side, the blade not only has a cutting function but also increases its sharp cutting ability, enabling it to saw through thicker objects, thereby improving the functionality of the paper cutter and thus increasing work efficiency. At the same time, the spring can reset the blade and push the limiting shaft to engage with the cylindrical opening through the side plate, so that when using the cutting edge or the saw blade composed of multiple serrations, the unused cutting edge or the saw blade composed of multiple serrations on the other side can be covered, thereby improving safety during use.

[0024] 2. In this utility model, the rubber frames and arc-shaped openings at the upper and lower ends of the handle not only fit the palm tightly, increasing grip comfort and stability, but also increase the contact area between the palm and the handle by utilizing the arc-shaped openings, preventing slippage during use. Attached Figure Description

[0025] Figure 1 This is a structural diagram of the first blade of a paper cutter proposed in this utility model;

[0026] Figure 2 This is a structural diagram of the second type of blade in a paper cutter proposed in this utility model;

[0027] Figure 3 This is a structural diagram of the third type of blade in a paper cutter proposed in this utility model;

[0028] Figure 4 This is a perspective view of a paper cutter proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the connecting column of a paper cutter proposed in this utility model;

[0030] Figure 6 This is a schematic diagram of the square block structure of a paper cutter according to the present invention.

[0031] Figure 7 This is a schematic diagram of the sliding frame of a paper cutter according to the present invention.

[0032] Figure 8 for Figure 4 Enlarged view of point A in the middle;

[0033] Figure 9 This is a schematic diagram of the limiting shaft of a paper cutter proposed in this utility model.

[0034] Legend:

[0035] 1. Handle; 2. Blade; 3. Serrated edge; 4. Connecting post; 5. Connecting plate; 6. Square block; 7. Rotating plate; 8. Push block; 9. Torsion spring; 10. Limiting plate; 11. Limiting opening; 12. Support plate; 13. Pressing plate; 14. Spring; 15. Side plate; 16. Limiting shaft; 17. Sliding frame; 18. Auxiliary block; 19. Columnar opening; 20. Strip-shaped opening; 21. Rubber frame; 22. Arc-shaped opening; 23. Protective frame; 24. Toothed cutting edge; 25. Cutting edge; 26. Connecting port. Detailed Implementation

[0036] 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.

[0037] Example 1, as Figure 1 As shown, a cutting edge is provided on one side of the blade, and a toothed cutting edge is provided on the side of the blade away from the cutting edge. A single set of connecting ports is provided at the rear end of the blade. The connecting ports facilitate the installation and removal of the blade and improve the service life of the overall structure.

[0038] Example 2, as Figure 2 As shown, a cutting edge is provided on one side of the blade, and a toothed cutting edge is provided on the side of the blade away from the cutting edge. Multiple sets of connection ports are provided vertically at the rear end of the blade. This design ensures the stability and integrity of the structure, facilitates the maintenance and upkeep of the equipment, assists in precise installation, improves the performance and accuracy of the equipment, enhances the overall mechanical connection, and helps improve the stability and durability of the entire structure. The vertical orientation can improve the vertical stability and load-bearing capacity of the structure.

[0039] Example 3, as Figure 3 As shown, a cutting edge is provided on one side of the blade, and a toothed cutting edge is provided on the side of the blade away from the cutting edge. Multiple sets of connection ports are provided horizontally at the rear end of the blade. This design ensures the stability and integrity of the structure, facilitates the maintenance and upkeep of the equipment, assists in precise installation, improves the performance and accuracy of the equipment, enhances the overall mechanical connection, and helps improve the stability and durability of the entire structure. The horizontal orientation can improve the horizontal stability and lateral force resistance of the structure.

[0040] Reference Figures 4 to 6This utility model provides an embodiment of a paper cutter, including a handle 1, which is used by the user to operate the paper cutter. A blade 2 is slidably connected inside the handle 1. The blade 2 is made of high-quality high-carbon steel and undergoes heat treatment processes such as quenching to achieve both hardness and sharpness. The bottom side of the blade 2 is ground to form a cutting edge, ensuring a clean and crisp cut when cutting paper. Multiple serrations 3 are fixedly connected to the top of the handle 1. The serrations 3 are made of hard alloy, with sharp and evenly arranged teeth, and can be used to quickly tear the edges of paper or assist in cutting thick paper, cardstock, and other special types of paper.

[0041] An adjustment assembly for adjusting the distance between the blades 2 and the blade body 2 is fixedly connected to the right end of the blade body 2. The adjustment assembly is used to achieve the extension and retraction of the blade body 2. The adjustment assembly includes two connecting posts 4, which are externally slidably connected to the right end of the blade body 2. The two blades 2 limit and engage the connecting posts 4. A connecting plate 5 is fixedly connected to the rear end of the two connecting posts 4. The connecting plate 5 is subjected to force to drive the connecting posts 4 to slide synchronously. The external side of the connecting plate 5 is slidably connected to the inside of the handle 1. The handle 1 restricts the sliding of the connecting plate 5. A square block 6 is fixedly connected to the front right end of the connecting plate 5. The connecting plate 5 provides stable support for the square block 6.

[0042] The square block 6 is externally slidably connected to the inside of the handle 1. The handle 1 guides and restricts the square block 6, allowing it to slide stably. A rotating plate 7 is rotatably connected inside the square block 6, allowing it to rotate freely. A push block 8 is fixedly connected to the front of the rotating plate 7, and pressing the push block 8 rotates the rotating plate 7. The push block 8 is externally slidably connected to the inner wall of the square block 6, allowing it to slide stably. A torsion spring 9 is fixedly connected to the rear of the push block 8, providing a resetting force. A limiting plate 10 is fixedly connected to the rear left end of the rotating plate 7, allowing it to rotate. Multiple limiting openings 11 are provided on the front of the handle 1. The limiting plate 10 is externally slidably connected to the inside of each limiting opening 11, and the size of the limiting opening 11 matches the rear end of the limiting plate 10, facilitating engagement.

[0043] Reference Figures 7 to 9A support plate 12 is fixedly connected to the right side of the inner wall of the grip 1 via welding, providing stable support for the support plate 12. Two pressing plates 13 are slidably connected to the left end of the grip 1, allowing the pressing plates 13 to slide stably due to the constraint of the grip 1. Springs 14 are fixedly connected to adjacent sides of the two pressing plates 13, providing a restoring force for the pressing plates 13. The bottom end of the spring 14 is fixedly connected to the top side of the support plate 12, securing the spring 14 and ensuring even force distribution. Side plates 15 are fixedly connected to both the front and rear sides of the pressing plates 13, allowing the two side plates 15 to slide synchronously. The outer sides of the two side plates 15 are slidably connected to the upper and lower ends of the grip 1, allowing the grip 1 to slide stably due to the constraint of the grip 1. Limiting shafts 16 are fixedly connected to the top side of the side plates 15, allowing the two limiting shafts 16 to slide synchronously due to the side plates 15.

[0044] Sliding frames 17 are slidably connected to both the upper and lower ends of the grip 1, allowing the sliding frames 17 to slide stably. An auxiliary block 18 is fixedly connected to the top left end of the sliding frame 17, facilitating the user's pushing of the sliding frame 17. A cylindrical opening 19 is provided on the far side of each of the two sliding frames 17, and the cylindrical opening 19 is adapted to the limiting shaft 16. The outside of the limiting shaft 16 is slidably connected to the inside of the cylindrical opening 19, thus completing the engagement. A strip-shaped opening 20 is provided in the middle of the sliding frame 17, and the inside of the strip-shaped opening 20 is slidably connected to the outside of the limiting shaft 16. Through the cooperation between the strip-shaped opening 20 and the limiting shaft 16, the sliding frame 17 can move flexibly. Rubber frames 21 are fixedly connected to both the upper and lower ends of the grip 1, and the rubber frames 21 are used to fit the palm. Multiple arc-shaped openings 22 are provided on the opposite sides of the two rubber frames 21. The arc-shaped openings 22 are used to increase the contact area with the palm. Protective frames 23 are fixedly connected to the four corners of the grip 1. The protective frames 23 are made of rubber to reduce the damage caused by bumps to the grip 1.

[0045] Working principle: When the extension length of the blade 2 needs to be adjusted, press the push block 8 so that it can compress the torsion spring 9. At this time, the torsion spring 9 will store elastic potential energy, and then give the push block 8 a force in the opposite direction to reset it. During the rotation of the push block 8, it will also drive the torsion spring 9 to slide, thereby driving the limiting plate 10 to rotate, so that the limiting plate 10 is no longer locked with the limiting opening 11. Then the square block 6 can be pushed to slide, thereby driving the connecting plate 5 to slide, and then driving the connecting column 4 to slide, and then driving the blade 2 to slide for adjustment. After adjusting to the appropriate position, release the push block 8, the torsion spring 9 releases energy, pushes the rotating plate 7 to reset, and the limiting plate 10 locks into the corresponding limiting opening 11, fixing the position of the blade 2. And through multiple saw teeth 3 forming a saw blade, it assists in cutting when processing thick paper, jammed paper, or when the edge of paper needs to be torn quickly. The rubber frames 21 and the arc-shaped openings 22 at the top and bottom of the grip 1 not only fit the palm tightly, increasing grip comfort and stability, but also increase the contact area between the palm and the grip 1 by using the arc-shaped openings 22 to prevent slipping during use.

[0046] Furthermore, by pressing the pressing plate 13, the side plate 15 is pushed to slide and compress the spring 14, allowing the spring 14 to store elastic potential energy. This then applies a force in the opposite direction to the side plate 15 to reset it. During the sliding process of the side plate 15, the two limiting shafts 16 are also driven to slide, so that the limiting shafts 16 are no longer stuck in the cylindrical opening 19 of the sliding frame 17. At this time, the auxiliary block 18 can be held to pull out the sliding frame 17, so as to prevent the blade or saw blade composed of multiple saw teeth 3 from causing injury to people. Releasing the pushing force on the pressing plate 13 allows the spring 14 to reset and push the limiting shaft 16 to engage with the cylindrical opening 19 through the side plate 15. This allows the saw blade composed of multiple saw teeth 3 to be covered when using the blade, thereby improving the safety of use.

[0047] 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 paper cutter comprising a handle (1) and a blade (2), characterized in that: The inside of the handle (1) is slidably connected with a blade body (2), one side of the blade body (2) is provided with a cutting edge (25), the side of the blade body (2) away from the cutting edge (25) is provided with a tooth cutting edge (24), the rear end of the blade body (2) is provided with a connecting port (26), a plurality of sawteeth (3) are arranged on the tooth cutting edge (24), the top end of the handle (1) is connected with the plurality of sawteeth (3), the right end of the blade body (2) is fixedly connected with an adjusting assembly for adjusting the distance of the blade body (2), the right side of the inner wall of the handle (1) is fixedly connected with a support plate (12), the left end of the handle (1) is slidably connected with two pressing plates (13), the proximal side of each of the two pressing plates (13) is fixedly connected with a spring (14), the front and rear sides of the pressing plate (13) are fixedly connected with a side plate (15), and the top side of the side plate (15) is fixedly connected with a limiting shaft (16).

2. A paper cutter according to claim 1, characterized in that: The upper and lower ends of the handle (1) are fixedly connected with rubber frames (21), a plurality of arc-shaped openings (22) are formed in the distal sides of the two rubber frames (21), and the four corners of the handle (1) are fixedly connected with protection frames (23).

3. A paper cutter according to claim 1, wherein: The adjusting assembly comprises two connecting columns (4), the outer sides of the connecting columns (4) are slidably connected with the connecting port (26) at the right end of the blade body (2), the rear ends of the two connecting columns (4) are fixedly connected with a connecting plate (5), the right end of the front side of the connecting plate (5) is fixedly connected with a square block (6), the inside of the square block (6) is rotatably connected with a rotating plate (7), the front side of the rotating plate (7) is fixedly connected with a push block (8), the rear side of the push block (8) is fixedly connected with a torsional spring (9), the rear left end of the rotating plate (7) is fixedly connected with a limiting plate (10), and a plurality of limiting openings (11) are formed in the front side of the handle (1).

4. A paper cutter according to claim 3, wherein: The outer side of the connecting plate (5) is slidably connected in the inside of the handle (1), and the outer side of the square block (6) is slidably connected in the inside of the handle (1).

5. A paper cutter according to claim 4, wherein: The bottom end of the spring (14) is fixedly connected to the top side of the support plate (12), and the outer side of the limiting plate (10) is slidably connected in the inside of the limiting opening (11).

6. A paper cutter according to claim 2, wherein: The upper and lower ends of the handle (1) are slidably connected with sliding frames (17), the distal sides of the two sliding frames (17) are provided with cylindrical openings (19), the outside of the limiting shaft (16) is slidably connected in the inside of the cylindrical opening (19), and the middle part of the sliding frame (17) is provided with a strip-shaped opening (20).

7. A paper cutter according to claim 6, wherein: The top left end of the sliding frame (17) is fixedly connected with an auxiliary block (18), and the inside of the strip-shaped opening (20) is slidably connected to the outside of the limiting shaft (16).

8. A paper cutter according to claim 3, wherein: The outer sides of the two side plates (15) are respectively slidably connected to the upper and lower ends of the handle (1), and the outside of the push block (8) is slidably connected to the inner wall of the square block (6).

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