Cutter easy to assemble

Abstract

The invention relates to the technical field of cutters, in particular to an easily-assembled cutter which comprises a blade and a handle which are detachably connected. The cutter further comprises a connecting rod, a through hole is formed in the handle in a penetrating mode, the connecting rod is connected with the handle in an inserted mode through the through hole, one end of the connecting rod is in threaded connection with the blade, and the other end of the connecting rod abuts against the handle. In order to solve the problem that a blade or a handle of an existing cutter is inconvenient to replace, the easy-to-assemble cutter is provided, the cutter can be repeatedly disassembled and assembled, and therefore the blade or the handle can be conveniently replaced.

Description

Technical Field

[0001] The present invention relates to the technical field of cutters, and more particularly to an easy-to-assemble cutter. Background Art

[0002] Knives are used for cutting, carving, scraping, etc. There are many types of knives. Their shapes, sizes and materials vary according to different uses and materials. Common types of knives include kitchen knives, woodworking knives, gardening knives, etc.

[0003] Existing knives usually cannot be disassembled and assembled repeatedly, so when the blade is damaged or in different usage scenarios, it is not convenient to replace blades of different shapes; or for different user groups, it is not convenient to replace the blade or handle, so it is impossible to make the knife more versatile and have a wider range of applications. Summary of the invention

[0004] The purpose of the present invention is to overcome the problem that it is inconvenient to replace the blade or handle of the existing knives, and to provide an easy-to-assemble knife that can be repeatedly disassembled and assembled, so that the blade or handle can also be easily replaced.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] An easy-to-assemble knife comprises a detachably connected blade and a handle; and a connecting rod, wherein a through hole is formed in the handle, the connecting rod is plugged into the handle through the through hole, and one end of the connecting rod is threadedly connected to the blade, and the other end abuts against the handle.

[0007] The knife of the present invention forms a detachable connection structure between the blade and the handle by making the connecting rod and the handle detachable and at the same time using the connecting rod and the blade to be threadedly connected. Moreover, the assembly of the knife is very simple. It only needs to make the connecting rod and the handle rotate relative to each other to separate the connecting rod from the blade, that is, to disassemble the blade and the handle. Then, the connecting rod is taken out from the handle, and the whole knife is completely disassembled. Only three simple parts, namely, the blade, the handle and the connecting rod, are needed. The processing is simple and the assembly and disassembly is convenient. The knife of the present invention can be fully disassembled and assembled, so it is also convenient to replace the blade or the handle. It only needs to set the structure of the connecting part as a universal structure, and the rest of the parts can be personalized, including but not limited to changing the shape of the blade tip, the material of the blade, the length of the blade, the material of the handle, the surface pattern of the handle, the outer contour shape of the handle, etc., so that the knife can be personalized for different groups of people, and the blade or the handle can be conveniently replaced for different usage occasions and purposes, which brings great convenience to consumers.

[0008] Furthermore, the blade is also in abutment with the handle. The abutment between the end of the blade and the handle can, on the one hand, increase the reliability of the connection between the blade and the handle, enhance stability, avoid the movement of the blade during use, and improve the accuracy of cutting; on the other hand, it can improve safety, and the close abutment can reduce the risk of the blade accidentally falling off during use, reducing the possibility of injury. Moreover, it improves durability. The close combination of the blade and the handle can disperse the force during use, reduce the wear of the blade, and extend the service life of the tool. In addition, it can also improve the grip: a good abutment design can provide a more comfortable grip and reduce hand fatigue during long-term use. At the same time, it can also improve aesthetics: the seamless connection between the blade and the handle is often more visually beautiful and improves the overall appearance of the tool. It is also easy to clean. The close connection between the blade and the handle reduces the gap, making cleaning more convenient and allowing food residues or dirt to be removed more thoroughly.

[0009] Furthermore, a threaded hole is provided at the end of the connecting rod, and a threaded rod is provided at the end of the blade, the threaded rod is threadedly connected to the threaded hole, and the length of the threaded rod is less than the length of the threaded hole. The blade and the connecting rod are threadedly connected by the external thread of the threaded rod and the internal thread of the threaded hole. By rotating the blade or rotating the connecting rod, the blade and the connecting rod are relatively rotated, so that the blade and the connecting rod can be assembled or disassembled. From a safety perspective, it is conventional to connect or separate the connecting rod and the blade by rotating the connecting rod. Preferably, the threaded rod can be integrally formed with the blade body.

[0010] Furthermore, a limiting step is provided at the end of the connecting rod away from the threaded hole, the connecting rod protrudes from the handle, and the limiting step abuts against the end of the handle. The limiting step can ensure the stability and repeatability of the installation of the connecting rod and the handle: the limiting step can ensure precise positioning during the installation process, and improve the consistency and repeatability of the installation. At the same time, it can prevent the connecting rod from moving randomly in the handle, thereby avoiding the displacement of the tool position during the installation process and ensuring the accuracy of the installation. Improve the installation efficiency and reliability of the tool: through the design of the limiting step, the time for tool replacement and installation can be reduced, and the efficiency and reliability of tool installation can be improved. It can also enhance the safety of the tool: the limiting step can prevent the connecting rod from accidentally falling off during use, thereby improving safety.

[0011] Furthermore, the end of the connecting rod away from the blade is provided with a tool position for convenient screwing. The tool position can be a groove or a protrusion, which is used to adapt to a tool such as a wrench or a socket, so that the connecting rod can be screwed and rotated by the tool to connect or separate the connecting rod and the blade.

[0012] Furthermore, the handle partially wraps the blade near the blade end. The handle partially wraps the blade, which can improve the stability of the connection between the handle and the blade, reduce the risk of the blade detaching from the handle, and increase the safety of use; the part where the handle wraps the blade is the connection transition between the blade and the handle, which can make the transition between the two smoother and improve the knife operation experience.

[0013] Furthermore, the handle is provided with a first inclined surface for limiting position near the outer side of the blade end. The first inclined surface is located at a position that is often touched during conventional knife operation, especially when the blade needs to be pulled out of the object after the knife is plugged into the object, placing the force point at the position of the first inclined surface can help apply force to the handle to pull the blade out of the object. The first inclined surface is an inclined plane, which acts as a contact guide, making it easier to place the thumb when grasping the handle, thereby improving the consumer's user experience.

[0014] Furthermore, the handle is provided with a second inclined plane for limiting at the end away from the blade. The second inclined plane is located at the end of the handle, that is, the end of the handle away from the blade. The second inclined plane is an inclined plane, which acts as a contact guide. When the connecting rod needs to be pulled out of the handle, the setting of the second inclined plane can facilitate the application of force to the connecting rod to separate it from the handle. Preferably, the second inclined plane is inclined from the end close to the blade toward the end away from the blade, which is more convenient for operation. Of course, within the scope of knowledge of those skilled in the art, the second inclined plane can also be set as a vertical plane.

[0015] Furthermore, the outer side of the handle is also provided with anti-skid patterns, which can increase the friction, that is, improve the adhesion when grasping the handle, thereby increasing the anti-skid effect, preventing the knife from slipping, and improving the safety of use.

[0016] Furthermore, the blade is made of metal, and the handle is made of wood, plastic or rubber. The blade or handle can be replaced with different materials according to the needs of use to meet the diversity of knife uses and take into account the material cost of the knife to improve the competitiveness of the knife in the market.

[0017] The beneficial effects of the present invention are:

[0018] The knife of the present invention forms a detachable connection structure between the blade and the handle by making the connecting rod and the handle detachable and at the same time using the connecting rod and the blade to be threadedly connected. Moreover, the assembly of the knife is very simple. It only needs to make the connecting rod and the handle rotate relative to each other to separate the connecting rod from the blade, that is, to disassemble the blade and the handle. Then, the connecting rod is taken out from the handle, and the whole knife is completely disassembled. Only three simple parts, namely, the blade, the handle and the connecting rod, are needed. The processing is simple and the assembly and disassembly is convenient. The knife of the present invention can be fully disassembled and assembled, so it is also convenient to replace the blade or the handle. It only needs to set the structure of the connecting part as a universal structure, and the rest of the parts can be personalized, including but not limited to changing the shape of the blade tip, the material of the blade, the length of the blade, the material of the handle, the surface pattern of the handle, the outer contour shape of the handle, etc., so that the knife can be personalized for different groups of people, and the blade or the handle can be conveniently replaced for different usage occasions and purposes, which brings great convenience to consumers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the first direction of the present invention.

[0020] Figure 2 It is a structural diagram of the second direction of the present invention.

[0021] Figure 3 It is a structural diagram of the third direction of the present invention.

[0022] Figure 4 It is a cross-sectional view of the present invention.

[0023] Figure 5 It is a structural diagram of a blade of the present invention.

[0024] Figure 6 It is a structural diagram of the handle of the present invention in the first direction.

[0025] Figure 7 It is a structural diagram of the handle of the present invention in the second direction.

[0026] Figure 8 It is a structural diagram of the connecting rod of the present invention in the first direction.

[0027] Fig. 9 It is a structural diagram of the connecting rod of the present invention in the second direction.

[0028] The illustrations are as follows:

[0029] 1. Blade; 2. Handle; 3. Connecting rod; 4. Through hole; 5. Threaded rod; 6. Threaded hole; 7. Limiting step; 8. Tool position; 9. First bevel; 10. Second bevel. DETAILED DESCRIPTION

[0030] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0031] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0033] Example 1

[0034] like Figures 1 to 9 The figure shows an embodiment 1 of an easy-to-assemble knife of the present invention, comprising a detachably connected blade 1 and a handle 2; and also comprising a connecting rod 3, wherein a through hole 4 is penetrated in the handle 2, and the connecting rod 3 is plugged into the handle 2 through the through hole 4, and one end of the connecting rod 3 is threadedly connected to the blade 1, and the other end is in contact with the handle 2.

[0035] The knife of the present invention forms a detachable connection structure between the blade 1 and the handle 2 by making the connecting rod 3 and the handle 2 detachable, and at the same time, the connecting rod 3 and the blade 1 are threadedly connected, so that a detachable connection structure is also formed between the blade 1 and the handle 2. Moreover, the assembly of the knife is very simple. It only needs to make the connecting rod 3 and the handle 2 rotate relative to each other to realize the separation of the connecting rod 3 and the blade 1, that is, the disassembly of the blade 1 and the handle 2 is realized, and then the connecting rod 3 is taken out from the handle 2, and the whole knife is completely disassembled. Only three simple parts, the blade 1, the handle 2, and the connecting rod 3 are needed, which are simple to process and easy to assemble and disassemble. The knife of the present invention can be fully disassembled and assembled, so it is also convenient to replace the blade 1 or the handle 2. It only needs to set the structure of the connecting part as a universal structure, and the rest of the parts can be personalized, including but not limited to changing the shape of the blade 1, the material of the blade 1, the length of the blade 1, the material of the handle 2, the surface pattern of the handle 2, the outer contour shape of the handle 2, etc., so that the knife can be personalized for different groups of people, and the blade 1 or the handle 2 can be easily replaced according to different usage occasions and purposes, which brings great convenience to consumers.

[0036] As an improved solution of this embodiment, the blade 1 is also abutted against the handle 2. The abutment of the end of the blade 1 against the handle 2 can, on the one hand, increase the reliability of the connection between the blade 1 and the handle 2, enhance stability, avoid the movement of the blade 1 during use, and improve the accuracy of cutting; on the other hand, it can improve safety, and the close abutment can reduce the risk of accidental detachment of the blade 1 during use, reducing the possibility of injury. Moreover, the durability is improved. The close combination of the blade 1 and the handle 2 can disperse the force during use, reduce the wear of the blade 1, and extend the service life of the tool. In addition, the grip can be improved: a good abutment design can provide a more comfortable grip and reduce hand fatigue during long-term use. At the same time, the aesthetics can also be improved: the seamless connection between the blade 1 and the handle 2 is often more visually beautiful, improving the overall appearance of the tool. And it is easy to clean. The close connection between the blade 1 and the handle 2 reduces the gap, making cleaning more convenient, and food residues or dirt can be removed more thoroughly.

[0037] As an improved solution of this embodiment, a threaded hole 6 is provided at the end of the connecting rod 3, and a threaded rod 5 is provided at the end of the blade 1. The threaded rod 5 is threadedly connected to the threaded hole 6, and the length of the threaded rod 5 is less than the length of the threaded hole 6. The outer thread of the threaded rod 5 cooperates with the inner thread of the threaded hole 6 to realize the threaded connection between the blade 1 and the connecting rod 3. By rotating the blade 1 or rotating the connecting rod 3, the blade 1 and the connecting rod 3 are relatively rotated, so that the blade 1 and the connecting rod 3 can be assembled or disassembled. From a safety perspective, it is conventional to connect or separate the connecting rod 3 and the blade 1 by rotating the connecting rod 3. Preferably, the threaded rod 5 can be integrally formed with the main body of the blade 1.

[0038] As an improvement to the present embodiment, a limiting step 7 is provided at the end of the connecting rod 3 away from the threaded hole 6, the connecting rod 3 protrudes from the handle 2, and the limiting step 7 abuts against the end of the handle 2. The limiting step 7 can ensure the stability and repeatability of the installation of the connecting rod 3 and the handle 2: the limiting step 7 can ensure precise positioning during the installation process, and improve the consistency and repeatability of the installation. At the same time, it can prevent the connecting rod 3 from moving randomly in the handle 2, thereby avoiding the displacement of the tool position during the installation process and ensuring the accuracy of the installation. Improve the installation efficiency and reliability of the tool: through the design of the limiting step 7, the time for tool replacement and installation can be reduced, and the efficiency and reliability of tool installation can be improved. It can also enhance the safety of the tool: the limiting step 7 can prevent the connecting rod 3 from accidentally falling off during use, and improve safety.

[0039] As an improvement of this embodiment, the end of the connecting rod 3 away from the blade 1 is further provided with a tool position 8 for convenient screwing. The tool position 8 can be a groove or a protrusion, which is used to adapt to a tool such as a wrench or a socket, so that the connecting rod 3 can be screwed and rotated by the tool to connect or separate the connecting rod 3 and the blade 1.

[0040] As an improvement to this embodiment, the handle 2 also partially wraps the blade 1 near the end of the blade 1. The handle 2 partially wraps the blade 1, which can improve the stability of the connection between the handle 2 and the blade 1, reduce the risk of the blade 1 detaching from the handle 2, and increase the safety of use; the part where the handle 2 wraps the blade 1 is the connection transition between the blade 1 and the handle 2, which can make the transition between the two smoother and improve the knife operation experience.

[0041] As an improvement to this embodiment, the blade 1 is made of metal, and the handle 2 is made of wood, plastic or rubber. The blade 1 or the handle 2 can be replaced with different materials according to the needs of use to meet the diversity of knife uses and take into account the material cost of the knife, thereby improving the competitiveness of the knife in the market.

[0042] Example 2

[0043] This embodiment is embodiment 2 of an easy-to-assemble knife. This embodiment is similar to embodiment 1, except that a first inclined surface 9 for limiting is provided on the outer side of the handle 2 near the blade 1 .

[0044] The first bevel 9 is located at a position that is often touched during conventional knife operation, especially when the blade 1 needs to be pulled out of the object after the knife is plugged into the object, placing the force point at the first bevel 9 can help apply force to the handle 2 to pull the blade 1 out of the object. The first bevel 9, i.e., an inclined plane, acts as a contact guide, making it easier to place the thumb when grasping the handle 2, thereby improving the consumer's user experience.

[0045] As an improvement to this embodiment, a second inclined surface 10 for limiting position is provided at the end of the handle 2 away from the blade 1 .

[0046] The second bevel 10 is located at the end of the handle 2, that is, the end of the handle 2 away from the blade 1. The second bevel 10 is an inclined plane, which acts as a contact guide. When the connecting rod 3 needs to be pulled out of the handle 2, the second bevel 10 can be easily applied to the connecting rod 3 to make it separate from the handle 2. Preferably, the second bevel 10 is inclined from the end close to the blade 1 to the end away from the blade 1, which is more convenient for operation. Of course, within the scope of cognition of those skilled in the art, the second bevel 10 can also be set as a vertical plane.

[0047] Example 3

[0048] This embodiment is another embodiment of an easy-to-assemble knife, which is similar to the first embodiment, except that anti-skid patterns are provided on the outer side of the handle 2. The provision of the anti-skid patterns can increase the friction, that is, improve the adhesion when grasping the handle 2, thereby increasing the anti-skid effect, which can prevent the knife from slipping and improve the safety of use.

[0049] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An easily assembled knife, comprising a detachably connected blade (1) and a handle (2); characterized in that: It also comprises a connecting rod (3), a through hole (4) is provided in the handle (2), the connecting rod (3) is plugged into the handle (2) through the through hole (4), one end of the connecting rod (3) is threadedly connected to the blade (1), and the other end is in contact with the handle (2).

2. The easy-to-assemble tool according to claim 1, characterized in that: The blade (1) also abuts against the handle (2).

3. The easy-to-assemble tool according to claim 2, characterized in that: A threaded hole (6) is provided at the end of the connecting rod (3), and a threaded rod (5) is provided at the end of the blade (1). The threaded rod (5) is threadedly connected to the threaded hole (6), and the length of the threaded rod (5) is smaller than the length of the threaded hole (6).

4. The easy-to-assemble tool according to claim 3, characterized in that: The end of the connecting rod (3) away from the threaded hole (6) is provided with a limiting step (7); the connecting rod (3) is arranged to protrude from the handle (2); and the limiting step (7) abuts against the end of the handle (2).

5. The easy-to-assemble tool according to any one of claims 1 to 4, characterized in that: The end of the connecting rod (3) away from the blade (1) is also provided with a tool position (8) for easy screwing.

6. The easy-to-assemble tool according to claim 5, characterized in that: The handle (2) also partially wraps around the blade (1) at the end close to the blade (1).

7. The easy-to-assemble tool according to claim 1, characterized in that: The handle (2) is provided with a first inclined surface (9) for limiting position on the outer side of the end close to the blade (1).

8. The easy-to-assemble tool according to claim 1, characterized in that: The handle (2) is provided with a second inclined surface (10) for limiting position at the end away from the blade (1).

9. The easy-to-assemble tool according to claim 1, characterized in that: The outer side of the handle (2) is also provided with anti-slip patterns.

10. The easy-to-assemble tool according to claim 1, characterized in that: The blade (1) is made of metal material, and the handle (2) is made of wood material, plastic material or rubber material.

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