Novel folding knife with blade capable of being replaced quickly

Abstract

The utility model relates to a novel folding knife with a blade capable of being replaced quickly. The novel folding knife comprises a handle assembly. A fixing plate assembly; the locking assembly comprises a fixed locking piece and a movable locking piece; the middle of the lower portion of the locking piece abuts against one end of the fixed locking piece. One end of the blade is rotationally connected between the fixing plate assemblies, a positioning opening is formed in the blade, the blade is rotationally connected with the handle assembly and the fixing plate assemblies in the mode that a screw penetrates through the positioning opening, and the other end of the locking piece can be in limiting fit with the blade. When the movable locking piece is turned open to be separated from the locking piece, the upper side of the locking piece is pressed to rotate, the locking protrusion is separated from the second locking opening, and when the blade is turned over and unfolded to be in place, the blade is completely fixed when the locking protrusion and the second locking opening are clamped. And when the blade rotates to form a 90-degree angle with the handle assembly, the blade is pulled outwards, so that the positioning opening is separated from the screw, and the blade is quickly disassembled.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, specifically to a novel folding knife with a quick-change blade. Background Technology

[0002] A folding knife is a knife that can fold and hide its blade for storage. Because the blade can be hidden, it can improve safety. However, on the market, the blades of folding knives do not have a mechanism to fix them in place after they are folded open, which causes the blades to rotate during use and affects the use. In addition, the blades are installed with screws, and the screws need to be unscrewed to remove the blades when they are replaced. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a novel folding knife with a quick-change blade, including...

[0004] Handle assembly;

[0005] A fixing plate assembly is configured and fixed on the handle assembly, the fixing plate assembly being located inside the handle assembly and forming a receiving space;

[0006] A locking assembly is disposed between the fixed plate assemblies. The locking assembly includes a fixed locking member and a movable locking member. The fixed locking member is fixed between the fixed plate assemblies, and the movable locking member is rotatably connected between the fixed plate assemblies.

[0007] A locking piece is rotatably disposed between the fixed plate assemblies. The lower center of the locking piece abuts against one end of the fixed locking member. The movable locking member can be in two states: open and folded. When the movable locking member is folded, it is built into the handle assembly and one end of it abuts against one end of the locking piece to limit the rotation of the locking piece. When the movable locking member is opened and disengaged from the handle assembly, the locking piece can be pressed and rotated.

[0008] The blade is rotatably connected at one end to the fixing plate assembly. The blade has a positioning hole. The blade is rotatably connected to the handle assembly and the fixing plate assembly by a screw passing through the positioning hole. The other end of the locking plate can form a limiting engagement with the blade. When the movable locking piece is opened, pressing the locking plate causes one end of the locking plate to disengage from the blade, releasing the limiting engagement and allowing the blade to be opened or removed through the positioning hole. When the blade is stored in the handle assembly, one end of the locking plate is limited to the blade to fix the blade.

[0009] A further embodiment of the present invention is that the handle assembly includes a first handle housing and a second handle housing that are adapted to each other, wherein the first handle housing is provided with an arc-shaped clearance and an adjacently arranged bayonet.

[0010] A further embodiment of this utility model is that the fixing plate assembly includes two identical fixing plates, which are respectively fixedly installed on the inner sides of the first handle housing and the second handle housing, and the fixing plates are provided with a first locking slot corresponding to the bayonet.

[0011] A further embodiment of this utility model is that a positioning pin is fixed on the movable locking member. When the movable locking member is folded inside the handle assembly, the positioning pin passes through the first locking port and is engaged in the port.

[0012] A further embodiment of this utility model is that a locking protrusion is provided at the lower part of one end of the locking plate, and a second locking hole adapted to the locking protrusion is provided on the blade. When the blade is fully extended, the locking protrusion and the second locking hole engage with each other.

[0013] A further embodiment of this utility model is that one side of the positioning port is an open opening, and the positioning port and the second locking port are respectively located on both sides of the blade.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The fixing plate assembly is installed inside the handle assembly, and a locking assembly is installed inside the handle assembly. The locking assembly includes a fixed locking member and a movable locking member. The movable locking member can rotate. A locking plate is also provided, configured with the locking assembly. One end of the locking plate has a locking protrusion, and the blade has a second locking slot that engages with the locking protrusion. When the movable locking member is folded open to disengage from the locking plate, pressing the upper side of the locking plate causes it to rotate, disengaging the locking protrusion from the second locking slot. Folding the blade open to its final position allows the locking protrusion and second locking slot to engage, completely securing the blade. Conversely, the blade folding operation is performed in the same way. Because the positioning port is an open structure, when the blade rotates to a 90° angle with the handle assembly, pulling the blade outwards disengages the positioning port from the screw, enabling quick blade removal. When installing the blade, simply align the positioning port with the screw and insert it, making blade installation and removal more convenient and faster.

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a novel folding knife with a quick-change blade when folded.

[0018] Figure 2 This is a schematic diagram of the exploded structure of a novel folding knife with quick-change blades in its folded state.

[0019] Figure 3This is a schematic diagram of the structure of a novel folding knife with quick-change blades when opened;

[0020] Figure 4 This is a schematic diagram of the exploded structure of a novel folding knife with quick-change blades in its open state.

[0021] Figure 5 This is a schematic diagram of the structure during blade disassembly. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] like Figures 1-4 In this embodiment, a novel folding knife with a quick-change blade is provided, including...

[0027] The handle assembly includes a first handle housing 1 and a second handle housing 2 that are adapted to each other, wherein the first handle housing 1 is provided with an arc-shaped clearance opening 10 and an adjacently arranged bayonet opening 11.

[0028] A fixing plate assembly is configured and fixed on the handle assembly. The fixing plate assembly is located inside the handle assembly and forms a receiving space. The fixing plate assembly includes two identical fixing plates 3. The two fixing plates 3 are respectively fixedly installed inside the first handle housing 1 and the second handle housing 2, and the fixing plate 3 has a first locking slot corresponding to the bayonet 11.

[0029] A locking assembly is disposed between the fixed plate assemblies. The locking assembly includes a fixed locking member 4 and a movable locking member 5. The fixed locking member 4 is fixed between the fixed plate assemblies, and the movable locking member 5 is rotatably connected between the fixed plate assemblies.

[0030] It also includes a locking piece 6, which is rotatably disposed between the fixed plate assemblies. The lower center of the locking piece 6 abuts against one end of the fixed locking member 4. The movable locking member 5 can produce two forms: open and folded. A positioning pin 50 is fixed on the movable locking member 5. When the movable locking member 5 is folded inside the handle assembly, the positioning pin 50 passes through the first locking port and is engaged in the slot 11.

[0031] In this embodiment, specifically, when the movable locking member 5 is folded, the movable locking member 5 is built into the handle assembly and one end of it abuts against one end of the locking piece 6 to limit the rotation of the locking piece 6. When the movable locking member 5 is unfolded and disengaged from the handle assembly, the locking piece 6 can be pressed and rotated.

[0032] The blade 7 is rotatably connected at one end to the fixing plate assembly. The blade 7 has a positioning hole 70. The blade 7 is rotatably connected to the handle assembly and the fixing plate assembly by a screw 8 passing through the positioning hole 70. The other end of the locking piece 6 can form a limiting engagement with the blade 7. When the movable locking piece 5 is opened, pressing the locking piece 6 causes one end of the locking piece 6 to disengage from the blade 7, releasing the limiting engagement, allowing the blade 7 to be opened or removed through the positioning hole 70. When the blade 7 is stored in the handle assembly, one end of the locking piece 6 is limited to the blade 7 to fix the blade 7.

[0033] In this embodiment, more specifically, a locking protrusion 60 protrudes from the lower part of one end of the locking plate 6, and a second locking port 71 adapted to the locking protrusion 60 is provided on the blade 7. One side of the positioning port 70 is open, and the positioning port 70 and the second locking port 71 are respectively located on both sides of the blade 7. When the blade 7 is fully extended, the locking protrusion 60 and the second locking port 71 engage. Since the clearance opening 10 can expose part of the locking plate 6 outside the handle assembly, when the movable locking member 5 is stored inside the handle assembly, the positioning pin 50 is locked onto the latch 11, and the movable locking member abuts against one end of the locking plate 6, thereby completely fixing the locking plate 6. At this time, pressing the locking plate 6 cannot control it. When the movable locking part 5 is flipped open, the limiting of the locking piece 6 is released, and the blade 7 can be unfolded. When the blade 7 rotates to a 90° angle with the handle assembly, the positioning port 70 is open, allowing the blade 7 to be pulled out for disassembly, achieving quick assembly and disassembly. When the blade 7 is flipped to be parallel with the handle assembly, the locking piece 6 is released, and the blade 7 is fixed by locking the locking protrusion 60 and the second locking port 71. Then, the movable locking part 5 is flipped back into the handle assembly to prevent rotation from affecting use. When the blade 7 needs to be folded, the movable locking part 5 is flipped open again, the locking piece 6 is pressed to release the limiting, and then the blade 7 is folded and stored. The operation is convenient.

[0034] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A novel folding knife with a quick-change blade, characterized in that, include Handle assembly; A fixing plate assembly is configured and fixed on the handle assembly, the fixing plate assembly being located inside the handle assembly and forming a receiving space; A locking assembly is disposed between the fixed plate assemblies. The locking assembly includes a fixed locking member and a movable locking member. The fixed locking member is fixed between the fixed plate assemblies, and the movable locking member is rotatably connected between the fixed plate assemblies. A locking piece is rotatably disposed between the fixed plate assemblies. The lower center of the locking piece abuts against one end of the fixed locking member. The movable locking member can be in two states: open and folded. When the movable locking member is folded, it is built into the handle assembly and one end of it abuts against one end of the locking piece to limit the rotation of the locking piece. When the movable locking member is opened and disengaged from the handle assembly, the locking piece can be pressed and rotated. The blade is rotatably connected at one end to the fixing plate assembly. The blade has a positioning hole. The blade is rotatably connected to the handle assembly and the fixing plate assembly by a screw passing through the positioning hole. The other end of the locking plate can form a limiting engagement with the blade. When the movable locking piece is opened, pressing the locking plate causes one end of the locking plate to disengage from the blade, releasing the limiting engagement and allowing the blade to be opened or removed through the positioning hole. When the blade is stored in the handle assembly, one end of the locking plate is limited to the blade to fix the blade.

2. The novel folding knife with quick-change blades according to claim 1, characterized in that, The handle assembly includes a first handle housing and a second handle housing that are adapted to each other, wherein the first handle housing is provided with an arc-shaped clearance and an adjacently arranged bayonet.

3. A novel folding knife with a quick-change blade according to claim 2, characterized in that, The fixing plate assembly includes two identical fixing plates, which are respectively fixedly installed on the inner sides of the first handle housing and the second handle housing, and the fixing plates are provided with a first locking slot corresponding to the bayonet.

4. A novel folding knife with a quick-change blade according to claim 3, characterized in that, The movable locking component is fixed with a positioning pin. When the movable locking component is folded inside the handle assembly, the positioning pin passes through the first locking port and engages with the port.

5. A novel folding knife with a quick-change blade according to claim 4, characterized in that, The lower part of one end of the locking plate has a locking protrusion, and the blade has a second locking slot that matches the locking protrusion. When the blade is fully extended, the locking protrusion engages with the second locking slot.

6. A novel folding knife with a quick-change blade according to claim 5, characterized in that, The positioning port is open on one side, and the positioning port and the second locking port are respectively located on both sides of the blade.

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