Multi-functional folding knife

Abstract

The utility model discloses a multifunctional folding knife belongs to manual cutting tools, and the existing folding knife is single function, the utility model discloses a function part is configured on the pivot and extends axially and is exposed to at least one side of handle, and the use of function part is realized by holding handle to increase the function of folding knife. The function part is installed with the head mounting hole, and the folding knife realizes the function of screwing screw. The function part is arranged on the rod, the rod is rotatably assembled with the pivot, and a one-way transmission mechanism is arranged between the rod and the pivot. When the pivot rotates in one direction, the rod rotates together under the drive of the one-way transmission mechanism. When the pivot rotates in another direction, the rod can rotate relative to the pivot. The function of the ratchet wrench is realized, that is, when screwing screw, the one-way transmission mechanism is used to realize idling to increase the screwing efficiency.

Description

Technical Field

[0001] This utility model belongs to the category of manual knives, specifically relating to a multi-functional folding knife. Background Technology

[0002] Existing folding knives, which are mounted on a handle via a pivot, only allow the knife to rotate to unfold or fold, thus having a single function. Utility Model Content

[0003] This invention addresses the shortcomings of existing folding knives that have limited functionality by providing a multi-functional folding knife.

[0004] To achieve the above objectives, the multi-functional folding knife of this utility model includes: The handle has a storage cavity; A pivot, which is laterally fixed to one end of a handle, and a functional part that extends axially and is exposed at least on one side of the handle is disposed on the pivot. The knife is mounted on a pivot so that it can be rotated into a storage cavity to fold or out of the storage cavity to unfold.

[0005] This folding knife increases its functionality by arranging a functional part that extends axially on a pivot and is at least exposed on one side of the handle, allowing the user to use the functional part by gripping the handle.

[0006] The pivot is fixed to one end of the handle to prevent the pivot from rotating relative to the handle, thereby ensuring the function of the functional part is realized.

[0007] Preferably, the pivot and handle are separately provided with radial anti-rotation grooves and protrusions, with the protrusions located in the anti-rotation grooves to fix the pivot to one end of the handle. This structure is compact and does not increase the profile of the pivot connection area.

[0008] In one embodiment, a first cap is fitted to the first end of the pivot, which is located on the first side of the handle, and a second cap is fitted to the second end of the pivot, which is located on the second side of the handle. The first cap and the second cap axially constrain the pivot to the handle, and the first cap and / or the second cap are provided with through holes for exposing functional parts.

[0009] In another embodiment, one end of the pivot has a flange, and the other end of the pivot is fitted with a cover. The flange and the cover are located on opposite sides of the handle, axially constraining the pivot to the handle. The cover has a through hole for exposing the functional parts.

[0010] Preferably, the functional part is a bit mounting hole. This is used to mount screwdriver bits for tightening screws, nuts, etc.

[0011] Preferably, the knife is locked in an unfolded or folded state by an operable locking structure, and unlocking the locking structure allows the knife to rotate around a pivot. This prevents accidental rotation of the knife and potential safety hazards.

[0012] Preferably, the knife includes a blade holder and replaceable blades mounted on the blade holder. By replacing the blades, the service life of the folding knife can be extended.

[0013] Preferably, the functional part is mounted on the rod, which is rotatably assembled with the pivot, and a one-way transmission mechanism is arranged between the rod and the pivot. This one-way transmission mechanism allows the rod to rotate when the pivot rotates in one direction, and to rotate relative to the rod when it rotates in the other direction. Accordingly, the ratchet wrench function can be achieved, that is, when tightening screws, the one-way transmission mechanism allows for idle rotation to increase tightening efficiency.

[0014] Preferably, the one-way transmission mechanism is a ratchet and pawl mechanism, which includes teeth on the lever, a pawl movably located on the pivot, and a first elastic element. The pawl engages with the teeth by the elastic force of the first elastic element, and the one-way transmission mechanism is covered and limited within the pivot. The ratchet and pawl mechanism has a compact structure, reliable transmission, sensitive operation, and can transmit large torque.

[0015] Preferably, both ends of the handle are provided with functional parts, with one functional part facing and exposed on the first side of the handle and the other functional part facing and exposed on the second side of the handle. Accordingly, the functional parts on both sides of the handle can output torque in different directions when tightening the screw, which is beneficial for tightening and loosening the screw.

[0016] Preferably, the functional unit is integrated into the pivot. This allows the functional unit to output greater torque when used as a bit mounting hole.

[0017] This invention increases the functionality of a folding knife by arranging a functional part that extends axially on a pivot and is at least exposed on one side of the handle, allowing the user to use the functional part by gripping the handle.

[0018] The functional part of this utility model is a bit mounting hole, which enables the folding knife to perform the function of tightening screws.

[0019] This invention incorporates a functional component on a rod, which is rotatably assembled with a pivot. A one-way transmission mechanism is positioned between the rod and the pivot. This mechanism allows the rod to rotate in one direction when the pivot rotates, and to rotate relative to the rod when it rotates in the other direction. This achieves the function of a ratchet wrench, increasing tightening efficiency by allowing the ratchet to idle during screw tightening via the one-way transmission mechanism. Attached Figure Description

[0020] Figure 1 This is a schematic diagram showing the multi-functional folding knife of this utility model in its unfolded state. Figure 2 for Figure 1 A schematic diagram of another perspective of the multi-functional folding knife shown; Figure 3 for Figure 1-2A schematic diagram of the orthographic projection of the first side of the multi-functional folding knife shown; Figure 4 for Figure 3 Enlarged cross-sectional view along the AA direction; Figure 5 for Figure 3 Enlarged cross-sectional view of BB direction; Figure 6 for Figure 3 CC-direction sectional view; Figure 7 for Figure 6 DD section view; Figure 8 for Figure 6 EE-directed sectional view; Figure 9 for Figure 6 FF section view; Figure 10 This is a schematic diagram of the multi-functional folding knife of this utility model in a folded state; Figure 11 This is a cross-sectional view of the multi-functional folding knife of this utility model in its folded state. Figure 12 for Figure 1 The diagram shown is an exploded view of the multi-functional folding knife. Figure 13 for Figure 12 A schematic diagram of another perspective of the multi-functional folding knife shown; Figure 14 This is a schematic diagram of the pivot configuration functional part of this utility model; Figure 15 for Figure 14 A schematic diagram of the structure shown from another perspective; Figure 16 for Figure 14-15 A schematic diagram of the axial orthographic projection of the pivot configuration functional unit shown; Figure 17 for Figure 16 Rear view; Figure 18 for Figure 16 Top view; Figure 19 for Figure 18 GG-direction sectional view; Figure 20 for Figure 14-15 The diagram shows an exploded view of the pivot configuration functional unit. Figure 21 for Figure 20 A schematic diagram of the structure shown from another perspective; Explanation of the labels in the diagram: 100 handles, 110 first handle body, 111 anti-rotation groove, 120 second handle body, 130 storage cavity; 200 Pivot, 201 Protrusion, 202 Edge, 203 Groove, 210 First Cover, 220 Second Cover; 300 rods, 301 functional unit; 400 One-way transmission mechanism, 401 tooth, 402 pawl, 403 first elastic element; 500 blade, 510 tool holder, 511 first locking groove, 512 second locking groove, 520 blade, 521 notch, 530 locking element, 531 locking part, 540 sheath; 600 Locking bar, 601 Large diameter section, 602 Small diameter section, 603 Pressing section, 610 Second elastic element; 700 gasket. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this utility model are intended to cover non-exclusive inclusion, such as a method or product that includes a series of technical features, not limited to those technical features explicitly listed, but also including other technical features that may be included in the method or product but not explicitly listed.

[0023] In the description of this utility model, it should be understood that the technical features defined by terms such as "first" and "second" which have a sequential concept are only for the purpose of clearly describing the defined technical features and making the defined technical features clearly distinguishable from other technical features, and do not represent that they are named in this way in actual implementation. Therefore, they should not be construed as limitations on this utility model.

[0024] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings.

[0025] Figure 1-13 A multi-functional folding knife is shown. The multi-functional folding knife includes a handle 100, a pivot 200, and a blade 500.

[0026] The handle 100 is formed by fastening a first handle body 110 and a second handle body 120 together, and a storage cavity 130 is formed between the first handle body and the second handle body.

[0027] Pivot 200 is horizontally fixed to one end of handle 100. For example... Figure 14-21 As shown, an axially extending functional part 301 is disposed on the pivot 200. The functional part 301 is exposed at least on one side of the handle to perform its function.

[0028] The blade 500 is rotatably mounted on the pivot 200 so that it can be rotated into the storage cavity 130. Figure 10-11 The folded state shown, or the state after being rotated out from the storage cavity 130, is as follows. Figure 1-9 The unfolded state shown.

[0029] This folding knife increases its functionality by arranging a functional part that extends axially on a pivot and is at least exposed on one side of the handle, allowing the user to use the functional part by gripping the handle.

[0030] The pivot is fixed to one end of the handle to prevent the pivot from rotating relative to the handle, thereby ensuring the function of the functional part is realized.

[0031] like Figure 7 , Figure 12-13 As shown, the pivot 200 and the handle 100 are separately provided with a radial anti-rotation groove 111 and a protrusion 201. The protrusion 201 is located in the anti-rotation groove 111 to fix the pivot to one end of the handle. This structure is compact and does not increase the profile of the pivot connection part. In a specific implementation, the anti-rotation groove 111 and the protrusion 201 can be interchanged.

[0032] like Figure 1-2 , Figure 4 , Figure 12-13 As shown, the pivot 200 has a retaining edge 202 at one end corresponding to the first side of the handle 100. A first cover 210 is fitted to the first end of the pivot 200, located on the first side of the handle 100. A second cover 220 is fitted to the second end of the pivot 200, located on the second side of the handle 100. The first cover 210, retaining edge 202, and second cover 220 axially constrain the pivot 200 to the handle 100. The first cover 210 and second cover 220 have through holes for exposing functional parts to allow these parts to perform their functions. For example, if the functional part is a bit mounting hole, a screwdriver bit can be installed into it. Therefore, the through hole for exposing the functional part can either allow the functional part to protrude from the through hole as shown in the figure, or it can be located inside the through hole. The first and second covers also serve to shield the pivot, protecting its internal structure and preventing external contaminants from entering. In another embodiment, the first cover can be omitted, i.e., one end of the pivot has a retaining edge, and the other end of the pivot is fitted with a cover. The retaining edge and the cover are located on both sides of the handle to axially constrain the pivot to the handle. The cover has a through hole for the functional parts to be exposed.

[0033] As shown in the figure, functional part 301 is a screwdriver bit mounting hole. It is used to install screwdriver bits to tighten screws, nuts, etc.

[0034] In the illustrated structure, the knife 500 is locked in an unfolded or folded state by an operable locking structure to prevent accidental rotation of the knife and potential safety hazards. Unlocking the locking structure allows the knife to rotate around a pivot. Specifically, the rear end edge of the knife 500 (illustrated as the knife holder 510) is provided with a radial first locking groove 511 and a second locking groove 512. The front end of the handle 100 is equipped with a locking bar 600 that can move laterally along its length. The locking bar 600 includes a large-diameter section 601, a small-diameter section 602, and a pressing section 603. The large-diameter section 601 and the small-diameter section 602 are located within the handle 100. The locking bar 603, through the elastic force of the second elastic element 610, keeps the large-diameter section 601 in a folded position. Figure 8 As shown, located in the first locking groove 511 or as... Figure 11 As shown, the large diameter section 601 is located in the second locking groove 512. Figure 8 When the blade is positioned in the first locking groove 511, it is locked in the unfolded state. When the large-diameter section 601 is positioned in the second locking groove 512, it is locked in the folded state. The pressing section 603 extends out of the handle 100 and, by pressing the pressing section 603 laterally, overcomes the elastic force of the second elastic element 610, causing the large-diameter section 601 to exit the first locking groove 511 or the second locking groove 512. The small-diameter section 602 corresponds to the rear end edge of the blade, allowing the blade to rotate around the pivot.

[0035] Furthermore, the knife 500 includes a knife holder 510 and a replaceable blade 520 mounted on the knife holder. The knife holder is an assembled structure. By replacing the blade, the service life of the folding knife can be extended. The structure in which the blade is replaceably mounted on the knife holder is not unique. Taking the illustrated example, the blade 520 is inserted into the knife holder 510. The front end of the knife holder 510 has a locking member 530 protruding from the first side. The locking member 530 uses the elastic force of the third elastic element to make its locking part 531 lock in the notch 521 on the edge of the blade 520, thus locking the blade. Pressing the locking member 530 overcomes the elastic force of the third elastic element, causing the locking part 531 to disengage from the notch 521 on the edge of the blade, allowing the blade to be pulled out of the knife holder. In other embodiments, the knife can be an integral structure. In the illustrated structure, the blade 520 is covered with a protective sleeve 540 to avoid the safety hazard of exposed blade. The protective sleeve is only removed when in use.

[0036] To prevent the blade from wobbling relative to the handle and to reduce wear, a shim 700 fitted on the pivot 200 is placed between the blade holder 510 and the first handle body 110, and between the blade holder 510 and the second handle body 520.

[0037] In the illustrated structure, the functional unit 301 is mounted on the rod 300. The rod 300 is rotatably assembled with the pivot 200, and a one-way transmission mechanism 400 is disposed between the rod 300 and the pivot 200. The one-way transmission mechanism allows the rod 300 to rotate when the pivot 200 rotates in one direction, and to rotate relative to the rod 300 when it rotates in the other direction. Therefore, the ratchet wrench function can be realized, that is, when tightening screws, the one-way transmission mechanism allows for free rotation to increase tightening efficiency. Specifically, the one-way transmission mechanism 400 is a ratchet and pawl mechanism, which includes a tooth 401 on the rod 300, a pawl 402 movably located in the groove 203 of the pivot 200, and a first elastic element 403. The pawl 402 engages with the tooth 401 by the elastic force of the first elastic element 403. The one-way transmission mechanism is shielded and limited within the pivot by the second cover 220, which in particular constrains the pawl 402 and the first elastic element 403 within the groove 203 of the pivot 200, ensuring that the pawl engages with the tooth. Figure 19 For reference, when the pivot 200 is rotated counterclockwise, the positional relationship between the pawl 402 and the pivot remains unchanged. As the pivot rotates, the pawl 402 engages with the tooth 401, pushing the tooth 401, the lever 300, and the functional part 301 to rotate together, transmitting torque. Conversely, when the pivot 200 is rotated clockwise, the pawl 402 engages with the tooth 401, which prevents the pawl 402 from rotating with the pivot 200. The pawl 402 moves relative to the pivot 200 in the groove 203, compressing the first elastic element 403, causing the pawl 402 to slip with the tooth 401, and the pivot to spin freely without transmitting torque. The ratchet and pawl mechanism has a compact structure, reliable transmission, sensitive operation, and can transmit a large amount of torque. By changing the meshing direction of the pawl and the tooth, torque can be transmitted when the pivot is rotated clockwise, and no torque can be transmitted when the pivot is rotated counterclockwise.

[0038] In the illustrated structure, functional parts 301 are provided at both ends of the rod 300, with one functional part facing and exposed on the first side of the handle and the other functional part facing and exposed on the second side of the handle. Accordingly, the functional parts on both sides of the handle can output torque in different directions when tightening the screw, which is beneficial for tightening and loosening the screw.

[0039] In other embodiments, the functional unit is integrally disposed on the pivot. This allows the functional unit to output greater torque when used as a bit mounting hole.

Claims

1. A multi-functional folding knife, characterized by: include: Handle (100), which has a storage cavity (130); A pivot (200) is laterally fixed to one end of a handle (100), and a functional part (301) is disposed on the pivot (200) extending axially and exposed at least on one side of the handle. The knife (500) is rotatably mounted on a pivot (200) so that it can be rotated into the storage cavity (130) to be in a folded state or rotated out of the storage cavity to be in an unfolded state.

2. The multi-functional folding knife according to claim 1, characterized in that: The pivot (200) and the handle (100) are provided with a radial anti-rotation groove (111) and a protrusion (201), the protrusion (201) being located in the anti-rotation groove (111) to fix the pivot (200) to one end of the handle (100).

3. The multi-functional folding knife according to claim 1, characterized in that: The first end of the pivot (200) is fitted with a first cover (210), which is located on the first side of the handle (100). The second end of the pivot (200) is fitted with a second cover (220), which is located on the second side of the handle (100). The first cover (210) and the second cover (220) axially constrain the pivot (200) to the handle (100). The first cover (210) and / or the second cover (220) are provided with through holes for the functional part (301) to be exposed.

4. The multi-functional folding knife according to claim 1, characterized in that: One end of the pivot (200) has a flange (202), and the other end of the pivot is fitted with a cover. The flange and the cover are located on both sides of the handle to axially constrain the pivot to the handle. The cover has a through hole for the functional parts to be exposed.

5. The multi-functional folding knife according to claim 1, characterized in that: The functional part (301) is a bit mounting hole.

6. The multi-functional folding knife according to claim 1, characterized in that: The knife (500) is locked in an unfolded or folded state by an operable locking structure, and the locking structure can be unlocked to allow the knife to rotate about a pivot.

7. The multi-functional folding knife according to claim 1, characterized in that: The knife (500) includes a tool holder (510) and a replaceable blade (520) mounted on the tool holder.

8. The multi-functional folding knife according to any one of claims 1-7, characterized in that: The functional part (301) is mounted on the rod (300), the rod (300) is rotatably assembled with the pivot (200), and a one-way transmission mechanism (400) is arranged between the rod and the pivot. The one-way transmission mechanism drives the rod to rotate together when the pivot rotates in one direction, and can rotate relative to the rod when it rotates in the other direction.

9. The multi-functional folding knife according to claim 8, characterized in that: The one-way transmission mechanism (400) is a ratchet and pawl mechanism, which includes a tooth (401) on the rod (300), a pawl (402) movably located on the pivot, and a first elastic element (403). The pawl (402) meshes with the tooth (401) by the elastic force of the first elastic element (403). The one-way transmission mechanism (400) is covered and limited within the pivot (200).

10. The multi-functional folding knife according to claim 8, characterized in that: Both ends of the rod (300) are provided with functional parts (301), with one functional part facing and exposed on the first side of the handle and the other functional part facing and exposed on the second side of the handle.

11. The multi-functional folding knife according to any one of claims 1-7, characterized in that: The functional units are integrated into the pivot.

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