Thick pen cutter, pen cutter set and cutting pen

Abstract

The utility model provides a thick pen cutter, a pen cutter set and a cutting pen, relates to the technical field of cutting tools, and solves the technical problem that a cutter head is easy to fall off in the prior art. The device comprises a cutting edge part, a connecting part and an abutting part, one end of the connecting part is connected with the cutting edge part, the other end of the connecting part is connected with the abutting part, a limiting part is arranged on the outer wall of the connecting part, and the connecting part is rotatably connected with a mounting hole of a cutter handle. And the limiting part and the hole wall of the mounting hole limit the axial movement of the thick pencil cutter. According to the utility model, the limiting part is arranged on the outer wall of the connecting part and is used for limiting the axial movement of the thick pencil cutter, so that an anti-falling effect is achieved, and the problem that the cutter body falls off due to extrusion of a material when the thick material is cut is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to a thick-cutting pen knife, a pen knife set and a cutting pen. Background Art

[0002] A cutting knife is often used for cutting paper or film, but the cutting knives currently used are convenient for curved surface cutting and easy to install. The existing patent document with application number 2022217641402 discloses a cutting knife, in which a part of the cutter head can be inserted into a circular hole and adsorbed by a magnet, so that the cutter head can be installed by simple plug-in, and can also meet the function of rotatable cutting of curved surfaces. However, in actual use, it is found that the cutter head with a cylindrical outer wall of the deep-reaching part is more convenient when cutting thinner paper or plastic film, but when cutting thicker materials, the blade will be brought out of the handle, and the use effect is not good. Utility Model Content

[0003] The purpose of the utility model is to provide a thick-cutting pen knife, a pen knife set and a cutting pen, which solves the technical problem of the blade being easy to fall out in the prior art. The preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects as described below.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The thick-cutting pen knife provided by the utility model comprises a blade portion, a connecting portion and an abutting portion, one end of the connecting portion is connected to the blade portion and the other end is connected to the abutting portion, a limiting portion is arranged on the outer wall of the connecting portion, the connecting portion is rotatably connected to the mounting hole of the knife handle, and the limiting portion and the hole wall of the mounting hole limit the axial movement of the thick-cutting pen knife.

[0006] Preferably, the limiting portion is a limiting ring, which is arranged on the circumference of the connecting portion, and the outer diameter of the limiting ring is larger than the inner diameter of the opening of the mounting hole.

[0007] Preferably, the limiting portion is a limiting protrusion, and the number of the limiting protrusions is at least two and they are evenly distributed on the peripheral side wall of the connecting portion.

[0008] The utility model provides a pen knife set comprising the above-mentioned thick-cut pen knife.

[0009] Preferably, a tool holder is further included, one end of the tool holder has a blind hole, one end of the abutment portion is detachably inserted into the blind hole, and the outer diameter of the tool holder is smaller than the inner diameter of the mounting hole.

[0010] Preferably, it also includes a magnetic attraction component arranged in the blind hole, and the magnetic attraction component can adsorb the thick-cutting pencil knife.

[0011] Preferably, it further comprises a protective cover, wherein the protective cover is arranged on one end of the blade portion.

[0012] The cutting pen provided by the utility model comprises the above-mentioned thick cutting pen knife and the knife handle, a bearing is arranged in the mounting hole, the connecting part close to the blade part can be rotatably arranged in the bearing, and the limiting part close to one end of the blade part can be against the bearing.

[0013] Preferably, the knife handle includes a pen handle and a pen cap assembly, the pen handle is threadedly connected to the pen cap assembly, the mounting hole is arranged on the pen cap assembly, the orifice of the mounting hole is located at an end of the pen cap assembly away from the pen handle, and the bearing is arranged at the mounting hole near the orifice.

[0014] This application adopts the above technical solution, which has at least the following beneficial effects:

[0015] A blade portion is arranged at one end of the connection portion and an abutment portion is arranged at the other end, and a limiting portion is arranged on the outer wall of the connection portion. The connection portion and the mounting hole of the knife handle are rotatably connected, and the limiting portion and the hole wall of the mounting hole limit the axial movement of the thick cutting pencil knife, so that the problem of the knife body falling off due to the extrusion of the thick material when cutting thick materials can be avoided.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the thick-cutting pen knife structure provided by an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the knife holder structure provided by an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of a cutting pen provided by an embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of a use embodiment of a cutting pen provided by the embodiment of the utility model.

[0022] In the figure, 1 is the blade part; 2 is the connecting part; 3 is the abutting part; 4 is the limiting part; 5 is the knife seat; 6 is the blind hole; 7 is the knife handle; 8 is the bearing; 9 is the pen handle; 10 is the pen cap assembly; 11 is the mounting hole; 12 is the orifice; 13 is the magnetic suction part. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0024] The specific embodiment of the utility model provides a thick pencil cutter, combined with the attached Figure 1 As shown, it mainly includes a blade portion 1, a connecting portion 2 and an abutting portion 3;

[0025] One end of the connecting portion 2 is connected to the blade portion 1, and the other end is connected to the abutting portion 3. The blade portion 1 is a blade body portion mainly used for cutting, and has a blade thereon;

[0026] The abutment portion 3 is a portion that abuts against the handle 7 and is rotatably connected, and the abutment portion 3 may be a conical structure;

[0027] Specifically, a limiting portion 4 is provided on the outer wall of the connecting portion 2, and the connecting portion 2 is rotatably connected to the mounting hole 11 of the handle 7, so that the thick-cutting pen knife can be installed in the handle 7 in a 360° rotating form, and the limiting portion 4 and the hole wall of the mounting hole 11 limit the axial movement of the thick-cutting pen knife. In this way, by providing the limiting portion 4, it can be ensured that the thick-cutting pen knife will not be separated from the handle 7 due to the squeezing of the material when cutting thicker materials, thereby further improving the use effect.

[0028] Specifically, the limiting portion 4 in the present application can be designed in the form of a limiting ring, which is arranged on the circumference of the connecting portion 2. The outer diameter of the limiting ring is larger than the inner diameter of the opening of the mounting hole 11. The limiting ring can be a cylindrical protrusion, or the outer wall of the limiting ring can be arc-shaped along the axial direction of the thick pencil cutter. The outer wall of the limiting ring can also be set to other shapes that can cooperate with the inner wall of the mounting hole 11 to play a limiting role.

[0029] In another embodiment of the present application, the limiting portion 4 can also be designed as a limiting protrusion. The number of the limiting protrusions is at least two and they are evenly distributed on the peripheral side wall of the connecting portion 2. At least two limiting protrusions can play a good limiting role.

[0030] The specific embodiment of the present application also provides a pen knife set, including the above-mentioned thick-cut pen knife, and also includes a knife seat 5, combined with the attached Figure 2 As shown, one end of the knife seat 5 has a blind hole 6, and one end of the abutment portion 3 is detachably inserted in the blind hole 6. The outer diameter of the knife seat 5 is smaller than the inner diameter of the mounting hole 11, wherein the function of the knife seat 5 is to facilitate grasping and installation. During actual installation, the thick-cutting pen knife is located on the knife seat 5 or the thick-cutting pen knife is manually inserted into the knife seat 5. The blade portion 1 is held by hand and then the abutment portion 3 and part of the connecting portion 2 are inserted into the blind hole 6. Then, the knife seat 5 is held by hand, and the blade portion 1 is inserted into the pen cap assembly 10, and the blade portion 1 is extended, and then the knife seat 5 is removed. This knife seat 5 can extend the thick-cutting pen knife, making it easier to install.

[0031] For this purpose, a magnetic attraction member 13 is also provided in the blind hole 6 in the present application. The magnetic attraction member 13 can absorb the thick-cutting pencil knife. The magnetic attraction member 13 can be located on the bottom wall of the blind hole 6 or can be provided in a ring shape on the inner wall of the blind hole 6.

[0032] In a specific embodiment of the present application, a protective cover may be further included, and the protective cover is arranged at one end of the blade portion 1. The protective cover may be made of plastic material, and is used to protect the blade portion 1. The protective cover and the connecting portion 2 are plugged in an interference fit manner.

[0033] A cutting pen is also provided in a specific embodiment of the present application, including the above-mentioned thick-cutting pen knife and a handle 7, a bearing 8 is arranged in the mounting hole 11, and the connecting portion 2 close to the blade portion 1 can be rotatably arranged in the bearing 8. In actual installation, the operator holds the knife seat 5 and inserts the blade portion 1 into the hole in the middle of the bearing 8. When cutting, the blade portion 1 is squeezed by the thicker material, and when the operator has a pulling action, the limiting portion 4 close to one end of the blade portion 1 can be against the bearing 8, and the thick-cutting pen knife is prevented from falling off by the limiting effect of the blade portion 1 and the bearing 8.

[0034] Combined with Figure 3 The specific knife handle 7 may include a pen handle 9 and a pen cap assembly 10. The pen handle 9 is threadedly connected to the pen cap assembly 10. The pen cap assembly 10 can be removed from the pen handle 9 to install the thick-cutting pen knife. The pen cap assembly 10 is provided with a mounting hole 11. The orifice 12 of the mounting hole 11 is located at the end of the pen cap assembly 10 away from the pen handle 9. The bearing 8 is arranged at the mounting hole 11 near the orifice 12. During installation, the thick-cutting pen knife extends from the internal threaded hole into the mounting hole 11 and extends all the way into the bearing 8. After the thick-cutting pen knife is installed, the corresponding other accessories are installed one by one. Finally, the pen cap assembly 10 can be installed on the pen handle 9.

[0035] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", "some examples", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A thick cutting pen knife, characterized in that: The utility model comprises a blade portion, a connecting portion and an abutting portion, wherein one end of the connecting portion is connected to the blade portion, and the other end is connected to the abutting portion, a limiting portion is arranged on the outer wall of the connecting portion, the connecting portion is rotatably connected to the mounting hole of the knife handle, and the limiting portion and the hole wall of the mounting hole limit the axial movement of the thick-cutting pencil knife.

2. The thick-cutting pen knife according to claim 1, characterized in that: The limiting portion is a limiting ring, which is arranged on the circumference of the connecting portion, and the outer diameter of the limiting ring is larger than the inner diameter of the opening of the mounting hole.

3. The thick-cutting pen knife according to claim 1, characterized in that: The limiting portion is a limiting protrusion, and the number of the limiting protrusions is at least two and they are evenly distributed on the peripheral side wall of the connecting portion.

4. A pen knife set, characterized in that: The invention comprises the thick-cutting pen knife as described in any one of claims 1 to 3.

5. The pen knife set according to claim 4, characterized in that: It also includes a knife seat, one end of which is provided with a blind hole, one end of the abutment portion is detachably inserted into the blind hole, and the outer diameter of the knife seat is smaller than the inner diameter of the mounting hole.

6. The pen knife set according to claim 5, characterized in that: It also includes a magnetic attraction component arranged in the blind hole, and the magnetic attraction component can adsorb the thick-cutting pencil knife.

7. The pen knife set according to claim 4, characterized in that: It also includes a protective cover, which is arranged on one end of the blade part.

8. A cutting pen, characterized in that: It comprises the thick-cutting pen knife as described in any one of claims 1 to 3 and the handle, wherein a bearing is arranged in the mounting hole, the connecting portion close to the blade portion can be rotatably arranged in the bearing, and the limiting portion close to one end of the blade portion can abut against the bearing.

9. The cutting pen according to claim 8, characterized in that: The knife handle includes a pen handle and a pen cap assembly, the pen handle is threadedly connected to the pen cap assembly, the mounting hole is arranged on the pen cap assembly, the orifice of the mounting hole is located at an end of the pen cap assembly away from the pen handle, and the bearing is arranged at the mounting hole near the orifice.

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