Locking rod structure of folding knife shaft lock

Abstract

The utility model relates to the technical field of folding knife lock rods, in particular to a folding knife shaft lock rod structure, and aims to solve the problems that when an existing folding knife is rotationally folded, due to the fact that the contact area of the folding knife is large, the resistance of knife folding operation is increased, and the use experience of a user is reduced. The arc plate is arranged on the outer surface of the lock rod, when a knife is rotatably collected, the outer surface of the spine of the knife edge is in contact with the protruding surface of the outer surface of the arc plate, compared with a traditional design, the contact area between the spine of the knife edge and the protruding surface is greatly reduced, the contact area is reduced, friction force is remarkably reduced accordingly, resistance of knife collection operation is reduced, the knife collection process is smoother, and the service life of the knife is prolonged. And meanwhile, noise generated by friction can be reduced through reduced friction force, so that the friction force and the noise can be reduced through contact between the arc-shaped arc plate and the spine of the cutting edge, and finally the use experience effect of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of folding knife locking rod technology, specifically a folding knife shaft locking rod structure. Background Technology

[0002] A folding knife is a portable knife with a foldable blade that can be concealed within a handle. Folding knives are used in everyday life for cutting ropes, opening cans, unpacking packages, and trimming plants. However, in currently available shaft-lock folding knives, when opening and closing the blade, the locking lever contacts the blade's rotating spine. The contact point is a line contact, and due to manufacturing precision limitations, it's difficult to ensure full contact along the entire line. This easily leads to problems such as blade wobbling, blade misalignment, high friction during opening and closing, poor smoothness, and excessive noise. Furthermore, adjusting the blade during assembly is difficult, resulting in a poor user experience and a generally unpleasant assembly process. Utility Model Content

[0003] The purpose of this invention is to provide a folding knife shaft lock rod structure. By using this device, the problem of existing folding knives having a large contact area when rotating and retracting the knife is solved, which increases the resistance of the retraction operation and reduces the user experience.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a folding knife shaft lock rod structure, including a lower clamp handle disposed below an upper clamp handle, a blade body movably disposed between the upper clamp handle and the lower clamp handle, a blade spine disposed at one end of the blade body, an upper clamp plate fixedly installed on the lower surface of the upper clamp handle, a rod groove being formed through the upper surface of the upper clamp plate, a bottom groove being formed on the upper surface of the upper clamp handle, a hole being formed on the surface of the upper clamp handle, the hole communicating with the rod groove, a lower clamp handle being passed through one end of the hole, a locking rod being movably disposed inside the rod groove, and a lower clamp plate being fixedly installed on the upper surface of the lower clamp handle;

[0005] The locking bar is segmented. A top plate is fixedly installed on the upper surface of the locking bar. A limiting plate is fixedly installed on the outer surface of the locking bar. An arc plate is fixedly installed on the outer surface of the locking bar. The arc plate is located in the middle part of the locking bar. The limiting plate is located above the arc plate. The outer surface of the arc plate is in contact with the outer surface of the blade spine. The lower surface of the limiting plate is in contact with the upper surface.

[0006] Furthermore, a groove is provided at one end of the blade body, and the groove is adapted to the arc plate.

[0007] Furthermore, an Ω spring is provided between the limiting plate and the top plate, and a sliding rod is provided at one end of the Ω spring.

[0008] Furthermore, a disc hole is provided on the upper surface of the upper clamping plate, and the disc hole is adapted to the limiting disc.

[0009] Furthermore, the upper clamping plate has an adjustment groove on its surface, and the adjustment groove is provided with multiple sets of adjustment holes. The adjustment groove and the adjustment holes are all slidably connected to the slide rod.

[0010] Furthermore, a wire clamp is fixedly installed on the outer surface of the lower clamp handle. The wire clamp is fixedly installed to the lower clamp handle by bolts. A decorative piece is movably arranged inside the wire clamp. Semi-circular holes are opened on both sides of the decorative piece, and the semi-circular holes are adapted to the surface of the wire clamp.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model proposes a folding knife shaft lock rod structure. When it is necessary to retract the knife, the locking rod is moved away from the blade body. At this time, the blade body is rotated, and its blade spine will contact the arc plate of the locking rod. Since the arc plate is arc-shaped, the contact area between it and the surface of the blade spine is greatly reduced. After the blade body is retracted, the locking rod will contact the groove. At this time, the Ω spring will release its elasticity and pull the locking rod into the groove, firmly fixing the retracted blade body between the upper and lower clamping plates. Thus, by contacting the blade spine with the arc-shaped plate, friction and noise problems can be reduced, ultimately improving the user experience. Attached Figure Description

[0013] Figure 1 An overall front view diagram according to one embodiment of the present invention is shown for illustrative purposes.

[0014] Figure 2 An overall reverse view diagram according to one embodiment of the present invention is shown for illustrative purposes;

[0015] Figure 3 A schematic diagram illustrating the overall breakdown according to one embodiment of this utility model is shown.

[0016] Figure 4 A schematic diagram of the overall internal cutting process according to one embodiment of the present invention is shown for illustration.

[0017] Figure 5 This is a schematic diagram illustrating the overall internal cutting edge according to one embodiment of the present invention;

[0018] Figure 6 A schematic diagram of the blade body according to one embodiment of the present invention is shown for illustrative purposes.

[0019] Figure 7 A schematic diagram of the upper clamping plate according to one embodiment of the present invention is shown for illustration.

[0020] Figure 8A schematic diagram of a locking rod according to one embodiment of the present invention is shown for illustrative purposes.

[0021] In the diagram: 1. Upper clamp handle; 11. Upper clamp plate; 12. Adjustment groove; 13. Rod groove; 14. Disc hole; 2. Lower clamp handle; 21. Lower clamp plate; 22. Wire clamp; 23. Decorative piece; 22. Wire clamp; 3. Blade body; 31. Blade spine; 32. Groove; 4. Locking rod; 41. Top plate; 42. Limiting plate; 43. Arc plate; 44. Ω spring; 45. Slide rod. Detailed Implementation

[0022] 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.

[0023] According to one embodiment of the present invention, Figures 1-8 A folding knife shaft lock rod structure includes an upper clamp handle 1 with a lower clamp handle 2 below it, a blade body 3 movably disposed between the upper clamp handle 1 and the lower clamp handle 2, a blade spine 31 disposed at one end of the blade body 3, an upper clamp plate 11 fixedly installed on the lower surface of the upper clamp handle 1, a rod groove 13 penetrating through the upper surface of the upper clamp plate 11, a bottom groove 12 being opened on the upper surface of the upper clamp handle 1, a hole being opened on the surface of the upper clamp handle 1, the hole communicating with the rod groove 13, one end of the hole penetrating through the lower clamp handle 2, a locking rod 4 movably disposed inside the rod groove 13, and a lower clamp plate 21 fixedly installed on the upper surface of the lower clamp handle 2.

[0024] The locking bar is segmented. A top plate 41 is fixedly installed on the upper surface of the locking bar 4, a limiting plate 42 is fixedly installed on the outer surface of the locking bar 4, and an arc plate 43 is fixedly installed on the outer surface of the locking bar 4. The arc plate 43 is located in the middle part of the locking bar 4, and the limiting plate 42 is located above the arc plate 43. The outer surface of the arc plate 43 is in contact with the outer surface of the blade spine 31, and the lower surface of the limiting plate 42 is in contact with the upper surface of 11. Through the cooperation of the arc plate and the blade spine, when the blade body rotates and retracts, the outer surface of the blade spine comes into contact with the protruding surface of the outer surface of the arc plate, thereby reducing the contact area between the blade spine and the arc plate, thus reducing friction and noise.

[0025] The blade body 3 has a groove 32 at one end, which is adapted to the arc plate 41. The groove 32 allows the arc plate 41 to be locked in the groove 32 when the blade spine 31 is rotated to open the blade, preventing the blade body 3 from shaking. When it is time to retract the blade, simply move the locking rod 4 towards the disc hole 14 and remove it from the groove 32.

[0026] An Ω spring 44 is provided between the limiting plate 42 and the top plate 41. A sliding rod 45 is provided at one end of the Ω spring 44. The Ω spring 44 can keep the locking rod 4 on one side of the rod groove 13, thereby fixing the blade body 3 after the blade is retracted to prevent the blade body 3 from shaking after the blade is retracted.

[0027] The upper surface of the upper clamping plate 11 has a disc hole 14, which is adapted to the limiting disc 42. When it is necessary to disassemble the blade body 3, the locking rod 4 can be moved to the disc hole 14, and then the locking rod 4 can be pulled out as a whole, at which point the blade body 3 can be disassembled.

[0028] The upper clamping plate 11 has an adjustment groove 12 on its surface. The adjustment groove 12 is provided with multiple sets of adjustment holes. The adjustment groove 12 and the adjustment holes are slidably connected to the slide rod 45. When it is necessary to adjust the stability of the blade body 3 after it is retracted, the slide rod 45 can be replaced with the adjustment hole where the adjustment groove 12 is located.

[0029] A wire clamp 22 is fixedly installed on the outer surface of the lower clamp handle 2. The wire clamp 22 is fixedly installed to the lower clamp handle 2 by bolts. A decorative piece 23 is movably arranged inside the wire clamp 22. The decorative piece 23 has semi-circular holes on both sides, which are adapted to the surface of the wire clamp 22. Due to the feature of the wire clamp 22, the decorative piece 23 can be inserted into the wire clamp 22 after the bolts are loosened.

[0030] Because the cable clip 22 is detachable and the decorative piece 23 can be customized, the product's entertainment value is increased and the user experience is enhanced.

[0031] Specifically, when the folding knife needs to be used, the locking lever 4 is moved from one inner wall of the groove on the blade body 3 to the other inner wall via the sliding locking lever 4. It will rotate during this process. Then, releasing the locking lever 4 allows the entire blade body 3 to rotate out. As the locking lever 4 is released, the restoring force of the Ω spring 44 causes the arc plate 43 to re-engage with the blade spine 31. When the blade body 3 is fully open, the locking lever 4 will be positioned on the inner wall of the lever groove 13, at which point the blade body 3 is fully extended. When opening the blade, rotate the blade body 3 so that the blade spine 31 continues to follow the arc plate 43 to one end. After the blade body 3 is fully retracted, the Ω spring 44 will move the locking rod 4 again, allowing the locking rod 4 to engage inside the groove 32, thereby securing the blade body 3 between the upper clamping plate 11 and the lower clamping plate 21. When it is necessary to adjust the stability of the blade body 3, remove all the bolts on the surfaces of the lower clamping handle 2 and the upper clamping handle 1, and then adjust the slide rod 45 in the adjustment groove 1. 2. The position of the internal adjustment hole: When the blade body 3 experiences too much resistance during the retraction and extension of the blade, the slide bar 45 can be moved to the right adjustment hole; conversely, when the resistance is less, it can be moved to the left. Since one end of the wire clamp 22 is located on the lower surface of the bolt, and the spacing between the wire clamps 22 above the bolt is relatively small, the spacing between the wire clamps 22 above the bolt is compatible with the decorative piece 23. After the blade is retracted, the decorative piece 23 inside the wire clamp 22 can be slid to increase the product's entertainment value. When the decorative piece 23 needs to be replaced, the bolt can be loosened, the required bolt placed in the gap between the wire clamps 22, and then the wire clamp 22 can be fixed with the bolt. Finally, the product can be clamped in the required position using the wire clamp 22. Thus, the arc-shaped plate 43 contacts the blade spine 31, reducing friction and noise, and adding a freely replaceable and slidable decorative piece 23, ultimately improving the user experience.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A folding knife shaft lock rod structure, characterized in that... The device includes an upper clamp handle below a lower clamp handle, a blade body movably disposed between the upper and lower clamp handles, a blade spine at one end of the blade body, an upper clamp plate fixedly mounted on the lower surface of the upper clamp handle, a rod groove extending through the upper surface of the upper clamp plate, a hole on the surface of the upper clamp handle communicating with the rod groove, a lower clamp handle extending through one end of the hole, a locking rod movably disposed inside the rod groove, and a lower clamp plate fixedly mounted on the upper surface of the lower clamp handle. The locking bar is segmented. A top plate is fixedly installed on the upper surface of the locking bar. A limiting plate is fixedly installed on the outer surface of the locking bar. An arc plate is fixedly installed on the outer surface of the locking bar. The arc plate is located in the middle part of the locking bar. The limiting plate is located above the arc plate. The outer surface of the arc plate is in contact with the outer surface of the blade spine. The lower surface of the limiting plate is in contact with the upper surface.

2. The folding knife shaft locking rod structure according to claim 1, characterized in that: The blade body has a groove at one end, and the blade body is adapted to the arc plate.

3. The folding knife shaft locking rod structure according to claim 1, characterized in that: An Ω spring is provided between the limiting plate and the top plate, and a sliding rod is provided at one end of the Ω spring.

4. The folding knife shaft locking rod structure according to claim 2, characterized in that: The upper clamp plate has a disc hole on its upper surface, and the disc hole is adapted to the limiting disc.

5. The folding knife shaft locking rod structure according to claim 3, characterized in that: The upper clamping plate has an adjustment groove on its surface, and the adjustment groove is provided with multiple sets of adjustment holes. The adjustment groove and the adjustment holes are all slidably connected to the slide rod.

6. The folding knife shaft lock rod structure according to claim 1, characterized in that: A wire clamp is fixedly installed on the outer surface of the lower clamp handle. The wire clamp is fixedly installed to the lower clamp handle by bolts. A decorative piece is movably arranged inside the wire clamp. Semi-circular holes are opened on both sides of the decorative piece, and the semi-circular holes are adapted to the surface of the wire clamp.

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