Cutter structure
By using magnet assembly to assist in reinforcement of blades and tool holders in folding tools, the wear and troubles of traditional mechanical locks are solved, and safety and efficiency are improved, tool life is extended and operation is simplified.
Patent Information
- Application Number
- CN202421101807.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The mechanical locks of traditional folding tools are easily worn or damaged during long-term use, causing the blade to open or close unexpectedly, affecting safety and efficiency of use, and troublesome operation may delay emergency situations.
The magnet assembly is used to assist in strengthening the blade and tool holder. By rotating the central shaft, front limit rod and rear limit rod, the magnet's magnetic suction effect is used to maintain a fixed state when the blade is completely folded or unfolded, simplifying operation.
It improves the safety and efficiency of the tool, reduces wear of mechanical locks, extends service life, and provides a simple and intuitive operation method.
Smart Images

Figure CN222290220U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cutters, and in particular to a cutter with a magnetic suction auxiliary reinforcement structure. Background Art
[0002] In the existing knife design, the safety and operating convenience of folding knives are the focus of users. Traditional folding knives usually use mechanical locks to fix the blades. Although this design can fix the blades, it has some shortcomings.
[0003] First, the mechanical lock may cause the blade to open or close accidentally due to wear, looseness or damage during long-term use, which not only reduces the service life of the knife, but also poses a safety hazard to the user. Second, the operation of traditional folding knives is often cumbersome, which not only affects the efficiency of use, but may also delay operation in an emergency. Utility Model Content
[0004] The utility model provides a tool structure which can solve the above problems.
[0005] In order to solve the above problems, the technical solution adopted by the utility model is as follows:
[0006] The utility model provides a tool structure, comprising a blade and a handle with a blade storage slot, the blade handle being provided with a rotation center axis, a blade front limit rod and a blade rear limit rod, the blade rotatingly cooperates with the rotation center axis; when the blade is rotated to a state where it is completely folded in the blade storage slot, or is rotated to a state where it is completely unfolded from the blade storage slot, the blade and the handle are reinforced with the aid of a magnet assembly to maintain their relative state; the blade is provided with a toggle portion, and when the blade is rotated to a state where it is completely folded in the blade storage slot, the toggle portion is located outside the blade storage slot.
[0007] As a further description of the above technical solution: the magnet assembly includes a first magnet column, a second magnet column, a third magnet column and a fourth magnet column fixed to the blade and evenly arranged in a circumferential direction around the rotation center axis, and a fifth magnet column, a sixth magnet column, a seventh magnet column and an eighth magnet column fixed to the handle and evenly arranged in a circumferential direction around the rotation center axis, the first magnet column, the rotation center axis and the second magnet column are arranged in sequence along a straight line, the third magnet column, the rotation center axis and the fourth magnet column are arranged in sequence along a straight line, the fifth magnet column, the rotation center axis and the sixth magnet column are arranged in sequence along a straight line, and the seventh magnet column, the rotation center axis and the sixth magnet column are arranged in sequence along a straight line. The moving center axis and the eighth magnet column are arranged in sequence along a straight line; when the blade rotates to a state where it is fully unfolded from the blade storage slot, the second magnet column and the fifth magnet column generate magnetic attraction, the first magnet and the sixth magnet column generate magnetic attraction, the third magnet column and the seventh magnet column generate magnetic attraction, and the fourth magnet column and the eighth magnet column generate magnetic attraction; when the blade rotates to a state where it is completely folded in the blade storage slot, the second magnet column and the sixth magnet column generate magnetic attraction, the first magnet and the fifth magnet column generate magnetic attraction, the third magnet column and the eighth magnet column generate magnetic attraction, and the fourth magnet column and the seventh magnet column generate magnetic attraction.
[0008] As a further description of the above technical solution: the handle includes a first half handle and a second half handle which are fixedly connected and assembled through the rotating central axis, the front limit rod of the blade and the rear limit rod of the blade.
[0009] As a further description of the above technical solution: the blade is provided with a limit groove, and when the blade is rotated to a state where it is fully extended from the blade storage groove, the front limit rod of the blade is stuck in the limit groove; when the blade is rotated to a state where it is fully folded in the blade storage groove, the front limit rod of the blade is disengaged from the limit groove.
[0010] As a further description of the above technical solution: there are two blade rear limit rods and they are perpendicular to the knife handle, and the shortest straight line between the two blade rear limit rods is inclined to the knife handle.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1) The blade is reinforced with the help of a magnet assembly to ensure that it is fixed to the handle when fully folded or fully unfolded, reducing the risk of accidental opening or closing and improving safety during use.
[0013] 2) The rotation of the blade is coordinated with the rotating center axis, providing a simple and intuitive operation method. When the tool is in a folded state, the blade can be pushed out through the push part. The user can easily fold or unfold the blade, which is convenient for quick switching of the use state.
[0014] 3) The use of magnet components reduces the wear and tear that may be caused by traditional fixing methods such as mechanical locks, and extends the service life of the tool.
[0015] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 is an exploded structural diagram of the tool structure described in the embodiment;
[0018] Figure 2 is a structural diagram of the second half of the handle of the embodiment;
[0019] Figure 3 is a diagram showing a state in which the blade of the embodiment is rotated to be completely folded in the blade storage slot. In order to show the internal structure, the first half of the handle is omitted in this diagram;
[0020] Figure 4 is a first-view complete state diagram of the blade in the embodiment being rotated to be completely folded in the blade receiving slot;
[0021] Figure 5 is a second perspective complete state diagram of the blade in the embodiment being rotated to be completely folded in the blade receiving slot;
[0022] In the figure: 1. the first half of the handle; 2. the second half of the handle; 3. the blade; 4. the rear limit rod of the blade; 5. the central axis of rotation; 6. the first magnet; 7. the second magnet column; 8. the third magnet column; 9. the fourth magnet column; 10. the front limit rod of the blade; 11. the limit groove; 12. the toggle part; 13. the fifth magnet column; 14. the sixth magnet column; 15. the seventh magnet column; 16. the eighth magnet column; 17. the blade storage groove. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.
[0024] Please refer to Figure 1 to Figure 5The utility model provides a tool structure, including a blade 3 and a handle with a blade storage slot 17. The handle is provided with a rotation center axis 5, a blade front limit rod 10 and a blade rear limit rod 4. The blade 3 rotates to cooperate with the rotation center axis 5. When the blade 3 rotates to a state of being completely folded in the blade storage slot 17, or rotates to a state of being fully unfolded from the blade storage slot 17, the blade 3 and the handle are reinforced by a magnet assembly to maintain their relative state. The blade 3 is provided with a toggle portion 12. When the blade 3 rotates to a state of being completely folded in the blade storage slot 17, the toggle portion 12 is located outside the blade storage slot 17.
[0025] Operation method of folding the blade 3: the user holds the handle and pushes the back of the blade 3 to rotate it around the central axis 5 into the blade storage slot 17. At this time, the rear limit rod 4 of the blade prevents the blade 3 from being over-folded. After the blade 3 is completely folded, the blade 3 can be firmly fixed in the storage slot with the help of the magnetic attraction of the magnet assembly to prevent accidental unfolding. Figure 3 , Figure 4 and Figure 5 shown.
[0026] Method for unfolding the blade 3: When the user needs to use the knife, the blade 3 can be pulled out of the storage slot by the toggle portion 12, so that it rotates around the rotation center axis 5 to a fully unfolded state. At this time, the front limit rod 10 of the blade prevents the blade 3 from being over-unfolded. After the blade 3 is fully unfolded, the relative position of the blade 3 and the handle can be more stably maintained under the magnetic attraction of the magnet assembly. Figure 1 and Figure 2 shown.
[0027] In an optional embodiment of the present invention, Figure 1 , Figure 2 and Figure 3As shown, the magnet assembly includes a first magnet 6 column, a second magnet column 7, a third magnet column 8 and a fourth magnet column 9 fixed to the blade 3 and evenly arranged in a circumferential direction around the rotation center axis 5, and a fifth magnet column 13, a sixth magnet column 14, a seventh magnet column 15 and an eighth magnet column 16 fixed to the handle and evenly arranged in a circumferential direction around the rotation center axis 5. The first magnet 6 column, the rotation center axis 5 and the second magnet column 7 are arranged in sequence along a straight line, the third magnet column 8, the rotation center axis 5 and the fourth magnet column 9 are arranged in sequence along a straight line, the fifth magnet column 13, the rotation center axis 5 and the sixth magnet column 14 are arranged in sequence along a straight line, and the seventh magnet column 15, the rotation center axis 5 and the eighth magnet column 16 are arranged in sequence along a straight line. and the eighth magnet column 16 are arranged in sequence along a straight line; when the blade 3 rotates to a state where it is fully unfolded from the blade receiving slot 17, the second magnet column 7 and the fifth magnet column 13 generate magnetic attraction, the first magnet 6 and the sixth magnet column 14 generate magnetic attraction, the third magnet column 8 and the seventh magnet column 15 generate magnetic attraction, and the fourth magnet column 9 and the eighth magnet column 16 generate magnetic attraction; when the blade 3 rotates to a state where it is fully folded in the blade receiving slot 17, the second magnet column 7 and the sixth magnet column 14 generate magnetic attraction, the first magnet 6 and the fifth magnet column 13 generate magnetic attraction, the third magnet column 8 and the eighth magnet column 16 generate magnetic attraction, and the fourth magnet column 9 and the seventh magnet column 15 generate magnetic attraction.
[0028] In the two states of blade 3 being fully unfolded and fully folded, the magnet assembly can achieve different magnetic attraction combinations. This design allows blade 3 to be stably fixed in both states, while simplifying the operation process. The user only needs to simply turn blade 3, and the magnet assembly will automatically adjust the magnetic attraction state, which improves the convenience of user operation.
[0029] In an optional embodiment of the utility model, the handle includes a first half handle 1 and a second half handle 2 which are fixedly connected and assembled by a rotating central axis 5, a front limit rod 10 for a blade, and a rear limit rod 4 for a blade. The first half handle 1 and the second half handle 2 are both provided with a magnet column which matches the magnet column at the upper end of the blade 3. Figure 1 and Figure 2 shown.
[0030] In an optional embodiment of the present utility model, a limiting groove 11 is provided on the blade 3. When the blade 3 is rotated to a state where it is fully unfolded from the blade storage groove 17, the front limiting rod 10 of the blade is stuck in the limiting groove 11; when the blade 3 is rotated to a state where it is fully folded in the blade storage groove 17, the front limiting rod 10 of the blade is disengaged from the limiting groove 11.
[0031] In an optional embodiment of the present utility model, there are two blade rear limiting rods 4 which are perpendicular to the knife handle, and the shortest straight line between the two blade rear limiting rods 4 is inclined to the knife handle.
[0032] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A tool structure, comprising a blade (3) and a handle with a blade receiving groove (17), wherein the handle is provided with a rotation center axis (5), a blade front limit rod (10) and a blade rear limit rod (4), wherein the blade (3) is rotationally matched with the rotation center axis (5), and characterized in that: When the blade (3) is rotated to a state where it is completely folded in the blade storage slot (17), or is rotated to a state where it is completely unfolded from the blade storage slot (17), the blade (3) and the handle are reinforced with the aid of a magnet assembly to maintain their relative state; the blade (3) is provided with a toggle portion (12), and when the blade (3) is rotated to a state where it is completely folded in the blade storage slot (17), the toggle portion (12) is located outside the blade storage slot (17).
2. The tool structure according to claim 1, characterized in that: The magnet assembly comprises a first magnet (6) column, a second magnet column (7), a third magnet column (8) and a fourth magnet column (9) fixed to the blade (3) and arranged uniformly in an annular direction around the rotation center axis (5), and a fifth magnet column (13), a sixth magnet column (14), a seventh magnet column (15) and an eighth magnet column (16) fixed to the knife handle and arranged uniformly in an annular direction around the rotation center axis (5), wherein the first magnet (6) column, the rotation center axis (5) and the second magnet column (7) are arranged in sequence along a straight line, the third magnet column (8), the rotation center axis (5) and the fourth magnet column (9) are arranged in sequence along a straight line, the fifth magnet column (13), the rotation center axis (5) and the sixth magnet column (14) are arranged in sequence along a straight line, the seventh magnet column (15), the rotation center axis (5) and the eighth magnet column (16) are arranged in sequence along a straight line, and the The iron pillars (16) are arranged in sequence along a straight line; when the blade (3) rotates to a state where it is fully unfolded from the blade storage slot (17), the second magnet pillar (7) and the fifth magnet pillar (13) generate magnetic attraction, the first magnet (6) and the sixth magnet pillar (14) generate magnetic attraction, the third magnet pillar (8) and the seventh magnet pillar (15) generate magnetic attraction, and the fourth magnet pillar (9) and the eighth magnet pillar (16) generate magnetic attraction; when the blade (3) rotates to a state where it is fully folded in the blade storage slot (17), the second magnet pillar (7) and the sixth magnet pillar (14) generate magnetic attraction, the first magnet (6) and the fifth magnet pillar (13) generate magnetic attraction, the third magnet pillar (8) and the eighth magnet pillar (16) generate magnetic attraction, and the fourth magnet pillar (9) and the seventh magnet pillar (15) generate magnetic attraction.
3. The tool structure according to claim 2, characterized in that: The knife handle comprises a first knife handle half (1) and a second knife handle half (2) which are fixedly connected and assembled via the rotating central axis (5), the front limit rod (10) of the blade and the rear limit rod (4) of the blade.
4. The tool structure according to claim 1, characterized in that: The blade (3) is provided with a limiting groove (11); when the blade (3) is rotated to a state where it is fully unfolded from the blade storage groove (17), the blade front limiting rod (10) is stuck in the limiting groove (11); when the blade (3) is rotated to a state where it is fully folded in the blade storage groove (17), the blade front limiting rod (10) is disengaged from the limiting groove (11).
5. The tool structure according to claim 1, characterized in that: There are two blade rear limiting rods (4) which are perpendicular to the knife handle, and the shortest straight line between the two blade rear limiting rods (4) is inclined to the knife handle.
