CN219819787U - Folding cutter that security is high - Google Patents
Folding cutter that security is high Download PDFInfo
- Publication number
- CN219819787U CN219819787U CN202321058377.3U CN202321058377U CN219819787U CN 219819787 U CN219819787 U CN 219819787U CN 202321058377 U CN202321058377 U CN 202321058377U CN 219819787 U CN219819787 U CN 219819787U
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- blade
- cutter
- knife
- handle
- arc
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- 230000006978 adaptation Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000001154 acute effect Effects 0.000 abstract 1
- 208000012260 Accidental injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Knives (AREA)
Abstract
The utility model relates to the technical field of cutters, and particularly discloses a folding cutter with high safety, which comprises a blade, a cutter handle and a cutter back arranged on the cutter handle, wherein the blade is connected with the cutter handle in a rotating way through a hinge shaft, the cutter back is embedded and arranged on the inner side of the upper end of the cutter handle, a first arc part is arranged at the upper end of the blade, a first arc surface is arranged on the first arc part, a second arc part matched with the first arc part is arranged on the left side of the cutter back, and a second arc surface matched with the first arc surface is arranged on the second arc part. According to the utility model, the first arc surface is arranged on the first arc part on the blade, and the second arc surface matched with the first arc surface is arranged on the second arc part on the back of the blade, so that the phenomenon that the back contact surface of the blade has an acute angle after the blade is folded is avoided, the safety of the cutter in the use process is improved, the safety is high, and the user experience effect is good.
Description
Technical Field
The utility model relates to the technical field of cutters, in particular to a folding cutter with high safety.
Background
Most of the folding cutters are composed of a cutter blade and a cutter handle with a certain volume cavity, the cutter blade is movably connected to the cutter handle through a hinge shaft, the cutter blade can be folded in the volume cavity of the cutter handle by hand force, and the cutter blade can be outwards unfolded from the cutter handle. The contact surface between the back of the existing blade and the back of the cutter handle is sharp and basically is a right angle of 90 degrees, potential safety hazards exist when the blade is folded due to the design of the right angle, once the contact surface is touched by hands or other objects, the contact surface is easily damaged, human bodies or objects are easily scratched, and the user experience effect is poor.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the folding cutter with high safety, aiming at the defects in the prior art, by arranging the first arc surface on the first arc part on the cutter blade and arranging the second arc surface matched with the first arc surface on the second arc part on the cutter back, the phenomenon that the contact surface of the back of the cutter blade has sharp angles after the cutter blade is folded is avoided, the safety of the cutter during the use process is improved, the safety is high, and the user experience effect is good.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the utility model provides a folding cutter that security is high, includes blade, handle of a knife and installs the back of a knife on the handle of a knife, the blade pass through the hinge with the handle of a knife rotates to be connected, the back of a knife embedding set up in the upper end inboard of handle of a knife, the upper end of blade is provided with first circular arc portion, be provided with first circular arc face in the first circular arc portion, the left side of back of a knife be provided with the second circular arc portion of first circular arc portion looks adaptation, be provided with on the second circular arc portion with the second circular arc face of first circular arc face looks adaptation.
Preferably, the upper end of the first circular arc portion is flush with the upper end surface of the second circular arc portion.
Preferably, a knife back mounting groove is formed in the upper end of the knife handle, and the knife back is embedded and mounted in the knife back mounting groove.
Preferably, a blade mounting groove into which the blade is inserted is formed in the bottom of the cutter handle.
Preferably, the cutter handle and the cutter blade are provided with hinge shaft through holes, and the hinge shaft is arranged in the hinge shaft through holes.
By adopting the technical scheme, the folding cutter with high safety has the following beneficial effects: the upper end of the blade in the folding cutter is provided with a first arc part, the first arc part is provided with a first arc surface, the left side of the cutter back is provided with a second arc part matched with the first arc part, the second arc part is provided with a second arc surface matched with the first arc surface, the first arc surface is arranged on the first arc part of the blade, the second arc surface matched with the first arc surface is arranged on the second arc part of the cutter back, the phenomenon that sharp angles exist on the contact surface of the back of the blade after the blade is folded is avoided, the human body is prevented from being scratched or the article is prevented from being scratched, the safety of the cutter in the use process is improved, the safety is high, the effect of tightly jointing the blade and the cutter back is achieved, the stability of the whole cutter structure is improved, and the user experience effect is good.
Drawings
FIG. 1 is an exploded view of the present utility model;
FIG. 2 is a schematic view of the structure of the blade in the open state according to the present utility model;
FIG. 3 is a schematic view showing a structure in which the blade is folded in the present utility model;
in the figure, a 1-blade, a 2-knife handle, a 3-knife back, a 4-hinge shaft, a 5-first arc part, a 6-first arc surface, a 7-second arc part, an 8-second arc surface, a 9-knife back mounting groove, a 10-blade mounting groove and an 11-hinge shaft through hole are formed.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
As shown in fig. 1-3, the folding cutter with high safety comprises a blade 1, a cutter handle 2 and a cutter back 3 arranged on the cutter handle 2, wherein the blade 1 is rotationally connected with the cutter handle 2 through a hinge shaft 4, the cutter back 3 is embedded and arranged on the inner side of the upper end of the cutter handle 2, a first arc-shaped part 5 is arranged at the upper end of the blade 1, a first arc-shaped surface 6 is arranged on the first arc-shaped part 5, a second arc-shaped part 7 matched with the first arc-shaped part 5 is arranged on the left side of the cutter back 3, and a second arc-shaped surface 8 matched with the first arc-shaped surface 6 is arranged on the second arc-shaped part 7. It will be appreciated that the blade 1, the shank 2 and the back 3 may be made of stainless steel.
Specifically, the upper end of the first circular arc portion 5 is flush with the upper end surface of the second circular arc portion 7; the upper end of the knife handle 2 is provided with a knife back mounting groove 9, and the knife back 3 is embedded and mounted in the knife back mounting groove 9; a blade mounting groove 10 for inserting the blade 1 is formed in the bottom of the cutter handle 2; the cutter handle 2 and the cutter blade 1 are provided with a hinge shaft through hole 11, and the hinge shaft 4 is arranged in the hinge shaft through hole 11. It can be appreciated that, compared with the traditional cutter, the contact surface between the blade 1 and the back part of the cutter back 3 is not a right angle of 90 degrees, but is an arc surface, so that the safety of the opened blade 1 is ensured, the corresponding compensation design is also carried out on the contact position of the cutter back 3, the corresponding chamfer arc compensation is arranged on the contact position of the cutter back 3, the blade 1 is smoothly closed with the cutter back 3, the effect of tight thread joint is achieved, the blade 1 is tightly matched with the cutter back 3, and the stability of the cutter is improved.
It can be understood that the utility model has reasonable design and unique structure, the first arc surface 6 is arranged on the first arc part 5 on the blade 1, the second arc surface 8 matched with the first arc surface 6 is arranged on the second arc part 7 on the blade back 3, the contact surface of the back of the blade 1 is not sharp, when hands or other objects are contacted, accidental injury is not caused, in addition, the contact position of the blade back 3 and the blade 1 is matched, the structure of the cutter is more stable, and the potential safety hazard is eliminated.
The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.
Claims (5)
1. The utility model provides a folding cutter that security is high, includes blade, handle of a knife and installs the back of a knife on the handle of a knife, the blade through the hinge with the handle of a knife rotates to be connected, its characterized in that: the utility model discloses a knife handle, including knife back, knife handle, knife back embedding set up in the upper end inboard of knife handle, the upper end of blade is provided with first circular arc portion, be provided with first circular arc face on the first circular arc portion, the left side of knife back be provided with the second circular arc portion of first circular arc portion looks adaptation, be provided with on the second circular arc portion with the second circular arc face of first circular arc looks adaptation.
2. The high safety folding knife according to claim 1, wherein: the upper end of the first arc part is flush with the upper end surface of the second arc part.
3. The high safety folding knife according to claim 1, wherein: the upper end of the knife handle is provided with a knife back installation groove, and the knife back is embedded and installed in the knife back installation groove.
4. The high safety folding knife according to claim 1, wherein: the bottom of the knife handle is provided with a blade mounting groove for the blade to be inserted.
5. The high safety folding knife according to claim 1, wherein: and the cutter handle and the cutter blade are respectively provided with a hinge shaft through hole, and the hinge shaft is arranged in the hinge shaft through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321058377.3U CN219819787U (en) | 2023-05-06 | 2023-05-06 | Folding cutter that security is high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321058377.3U CN219819787U (en) | 2023-05-06 | 2023-05-06 | Folding cutter that security is high |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219819787U true CN219819787U (en) | 2023-10-13 |
Family
ID=88280665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321058377.3U Active CN219819787U (en) | 2023-05-06 | 2023-05-06 | Folding cutter that security is high |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219819787U (en) |
-
2023
- 2023-05-06 CN CN202321058377.3U patent/CN219819787U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |