A deformable folding knife

Abstract

The present application discloses a deformable folding knife, comprising: a knife case, the knife case comprising an outer shell and an inner shell, the outer shell being provided with a main accommodating cavity and an opening, the opening being provided at the side of the outer shell, and the inner shell being rotatably and foldably installed in the main accommodating cavity; the inner shell being provided with a accommodating cavity and a port, the port being opened at the front end of the inner shell; a knife holder, the knife holder carrying a blade, and the knife holder being rotatably installed in the accommodating cavity; a first guide assembly, the first guide assembly being provided with a first guide rail and a driving member, the driving member being drivably connected to the front face of the knife holder so as to enable the knife holder to move along the first guide rail; and a second guide assembly, the second guide assembly being provided with a fixed surface and a second guide rail, the second guide rail being opened at the fixed surface, the back face of the knife holder being pivotally connected to the second guide rail so as to enable the knife holder to move along the second guide rail, wherein, when the driving member is translated and / or rotated relative to the fixed surface, the knife holder can be selectively rotated into or out of the accommodating cavity, and can be alternately changed in direction at multiple positioning angles between a longitudinal position and a lateral position.

Description

Technical Field

[0001] The invention relates to the technical field of knives, in particular to a deformable folding knife. Background Art

[0002] Knives are mainly divided into cutting knives for side cutting and scrapers for scraping. A cutting knife is a tool for arts and crafts, mostly of a pull-out structure, consisting of a plastic handle and a blade. Usually the cutting edge of the blade is parallel to the axis of the handle or the shell, and is mainly used for cutting, such as cutting paper, cardboard, etc. A scraper usually has a blade that is perpendicular or orthogonal to the axis of the handle, and is used for scraping, such as scraping paint, glue marks, etc. from a flat surface. A cutting knife and a scraper are two separate hand tools, and they are often not interchangeable. It is usually necessary to purchase, store and carry these two separate tools, which brings inconvenience to the user.

[0003] Although the existing deformable tool can be switched between the cutting knife and the scraper, the structure is relatively complex and the operation is relatively inconvenient. Summary of the invention

[0004] One object of the present invention is to provide a deformable folding knife with a compact structure. The knife can be quickly positioned at multiple angles by moving the knife holder between a first guide rail and a second guide rail, so that the knife can be switched between a utility knife and a scraper, thereby improving work efficiency.

[0005] Another object of the present invention is to provide a deformable folding knife with a simple structure, which does not require the addition of complex accessories. The first guide rail and the second guide rail on the surface of the inner shell jointly define the movement path of the knife seat, and the blade is smoothly transitioned to multiple positioning positions of 0° to 90°, thereby reducing production costs.

[0006] Another object of the present invention is to provide a deformable folding knife, which deflects and guides the first guide member and the second guide member of the knife seat to the appropriate direction to generate a thrust to push the knife seat in the rotation direction, so that the knife seat rotates to a preset position, thereby meeting the multi-purpose use requirements of the blade in the longitudinal, transverse and oblique directions, and improving the application range of the tool.

[0007] Another object of the present invention is to provide a deformable folding knife, which can keep the knife holder in a longitudinal position through a safety component to prevent accidental rotation of the knife holder and cause accidental injuries.

[0008] Another object of the present invention is to provide a deformable folding knife, which can enable the inner shell to be rotated and folded to the outer shell when the knife holder is in the longitudinal position through the self-locking component, and the knife can be kept unfolded when the knife holder is in other positions, thereby avoiding accidental injury caused by the blade not being able to be smoothly accommodated in the main accommodating cavity.

[0009] Another object of the present invention is to provide a deformable folding knife, which can quickly replace the blade by moving the middle knife holder.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is: a deformable folding knife, comprising: a knife case, the knife case comprising an outer shell and an inner shell, the inner shell being rotatably and foldably mounted on the outer shell; the inner shell being provided with a receiving cavity and a port, the port being opened at the front end of the inner shell; a knife seat, the knife seat carrying a blade, the knife seat being rotatably mounted in the receiving cavity; a first guide assembly, the first guide assembly being provided with a first guide rail and a driving member, the driving member being drivably connected to the front face of the knife seat so that the knife seat can move along the first guide rail; and a second guide assembly, the second guide assembly being provided with a fixed surface and a second guide rail, the second guide rail being opened on the fixed surface, the back face of the knife seat being pivotally connected to the second guide rail so that the knife seat can move along the second guide rail, wherein when the driving member is translated and / or rotated relative to the fixed surface, the knife seat can be selectively rotated into or out of the receiving cavity, so that the knife seat can be alternately changed in direction at multiple positioning angles between a longitudinal position and a transverse position.

[0011] As a preference, the deformable folding knife also includes a sliding component, the driving member is provided with a driving surface, and the sliding component is assembled on the driving surface, so as to drive the driving member to translate and / or rotate; the knife seat includes a first guide member and a second guide member, the first guide member and the second guide member are respectively arranged on the front and back sides of the knife seat in an offset manner, the first guide member protrudes from the front side of the knife seat and is pivoted to the front end of the driving surface, and is pivoted to the first guide rail, so that the first guide member drives the knife seat to translate and / or rotate along the first guide rail, the second guide member protrudes from the back side of the knife seat and is pivoted to the second guide rail, so that the second guide member drives the knife seat to translate and / or rotate along the second guide rail, so that the longitudinal driving force of the sliding component on the driving member is converted into a steering force of the driving member on the knife seat at multiple positioning angles.

[0012] Preferably, the first guide rail and the second guide rail are arc structures with different trajectories, the first guide rail extends forward in a direction deviating from the second guide rail, and the second guide rail extends outward in a direction deviating from the first guide rail, so that the knife seat is connected to the fixed surface and the driving surface in two different directions, and when the knife seat gradually changes direction and turns under the dual forces of the fixed surface and the driving surface, the knife seat gradually rotates out of or back into the accommodating cavity from the port, so that the blade on the knife seat can change direction at multiple positioning angles between the longitudinal position and the transverse position.

[0013] As a preferred embodiment, the first guide member and the second guide member on both sides of the knife seat are located on the same straight line parallel to the blade, the starting end of the first guide rail and the starting end of the second guide rail are located on the same straight line parallel to the axis, the first guide rail extends forward in a direction deviating from the second guide rail, and the second guide rail extends outward in a direction away from the first guide rail, and the end of the first guide rail and the end of the second guide rail are located on the same straight line perpendicular to the axis. When the first guide member is located at the starting end of the first guide rail and the second guide member is located at the starting end of the second guide rail, the knife seat is in a longitudinal position, and the blade extends out of the port to serve as a longitudinal cutting knife. When the first guide member turns and moves along the first guide rail and the second guide member turns and moves along the second guide rail, the knife seat turns out of the accommodating cavity and the turning angle is substantially 0° to 90° or 90° to 180°, and the blade is converted to an inclined state. When the first guide member is located at the end of the first guide rail and the second guide member is located at the end of the second guide rail, the knife seat turns to a transverse position, and the blade is converted to a transverse state to serve as a transverse scraper.

[0014] As a preferred embodiment, the inner shell includes an upper shell and a lower shell, the driving member is accommodated in a accommodating cavity between the upper shell and the lower shell, and is located between the upper shell and the knife seat, the upper shell is provided with the first guide rail and a positioning groove, the first guide rail is formed on the inner surface of the upper shell, the positioning groove is opened on the surface of the upper shell, the fixing surface is located on the surface of the lower shell, the second guide rail is opened on the surface of the lower shell, the knife seat is movably connected to the upper shell and the lower shell through the first guide member and the second guide member, the lower end of the sliding assembly is connected to the rear end of the driving member through the positioning groove, so that the knife seat can be translated and / or rotated by pushing the driving member, wherein the driving member can be elastically locked in the positioning groove, so that the blade of the knife seat is locked in the longitudinal position, the transverse position or the direction-changing transition position between the longitudinal position and the transverse position.

[0015] As a preferred embodiment, the deformable folding knife further comprises a safety assembly, which comprises a safety push button, a safety spring and a stopper, wherein the safety push button is longitudinally movably arranged on the side of the upper shell for stopping the blade, and the safety spring longitudinally extends along the axial direction and abuts against the safety push button, so that when the knife seat leaves the longitudinal position, the front end of the safety push button can abut against the knife seat to avoid the blade, and when the knife seat returns to the longitudinal position, the safety push button can be reset to stop the blade; the safety push button A locking groove is provided on the upper side of the button, the locking piece is arranged on the inner surface of the upper shell and can be elastically rotatably pressed against the driving piece, the locking piece is suitable for being detachably engaged with the locking groove, when the knife seat is in the longitudinal position, the locking piece is suitable for being engaged with the locking groove, the safety push button avoids the blade, so that the blade can be rotated out of the accommodating cavity, when the knife seat leaves the longitudinal position, the locking piece can be separated from the locking groove under the action of the driving piece, so that the front end of the safety push button presses against the knife seat.

[0016] As a preference, it also includes a self-locking component, which includes a self-locking push button and a self-locking spring. The self-locking push button can be longitudinally movably arranged on the inner shell and is suitable for resisting against the driving member. The self-locking spring provides a force for the self-locking push button to move toward the driving member. The self-locking push button is protrudingly provided with a first self-locking portion, and the upper shell is provided with a self-locking hole. The first self-locking portion extends toward the outer shell through the self-locking hole, and the inner surface of the outer shell is protrudingly provided with a second self-locking portion, wherein, when the deformable folding knife is in an unfolded state, the second self-locking portion is located beside the self-locking hole, and when the blade leaves the longitudinal position, the first self-locking portion resists against the second self-locking portion, so that the deformable folding knife remains in the unfolded state, and when the blade is in the longitudinal position, the driving member pushes the self-locking push button, so that the first self-locking portion is separated from the second self-locking portion, and the inner shell is able to rotate and fold relative to the outer shell.

[0017] As a preference, the knife seat comprises a first knife holder, an intermediate knife holder, a second knife holder and a knife holder spring sheet, the intermediate knife holder is rotatably connected to the first knife holder and the second knife holder, the knife holder spring sheet can provide a force to the intermediate knife holder against the second knife holder, so that the blade can be detachably installed between the second knife holder and the intermediate knife holder, the first guide member protrudes radially outward from the first knife holder, and the second guide member protrudes radially outward from the second knife holder eccentrically relative to the first guide member; the intermediate knife holder comprises a main body, a rotating shaft portion located on both sides of the main body, and an extension portion located at the upper end of the main body, the extension portion and the main body are located on both sides of the center line of the rotating shaft, the extension portion is exposed to the outside from the upper end of the knife seat, and can be movably located between the first knife holder and the second knife holder, and the main body is moved away from the second knife holder by moving the extension portion to overcome the elastic force of the knife holder spring sheet, so that the blade can be replaced.

[0018] As a preferred embodiment, the deformable folding knife also includes a locking assembly, which includes a locking piece and a locking spring. The locking piece can be elastically pressed to be connected to the outer shell, the locking piece is provided with a radially protruding locking portion, and the inner shell is provided with a plurality of locking notches. The locking portion can be detachably engaged with the locking notches to keep the inner shell in an expanded state or a folded state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a deformable folding knife in an unfolded longitudinal position according to some embodiments of the present application;

[0020] Figure 2 is a schematic diagram of the lower structure of a deformable folding knife in an unfolded longitudinal position according to some embodiments of the present application;

[0021] Figure 3 is a cross-sectional view of a deformable folding knife in an unfolded longitudinal position according to some embodiments of the present application;

[0022] Figure 4 is a schematic structural diagram of a deformable folding knife in an unfolded transition position according to some embodiments of the present application;

[0023] Figure 5 is a schematic structural diagram of a deformable folding knife in an unfolded lateral position according to some embodiments of the present application;

[0024] Figure 6 is a schematic structural diagram of a deformable folding knife in a folded position according to some embodiments of the present application;

[0025] Figure 7 is a partial exploded view of a deformable folding knife according to some embodiments of the present application;

[0026] Figure 8 is a partial exploded view of a deformable folding knife according to some embodiments of the present application;

[0027] Fig. 9 is an internal structural diagram of a deformable folding knife according to some embodiments of the present application;

[0028] Fig.10 is an internal structural diagram of a deformable folding knife according to some embodiments of the present application;

[0029] Fig.11 is a cross-sectional view of a deformable folding knife according to some embodiments of the present application;

[0030] Fig.12 is a schematic structural diagram of a safety push button according to some embodiments of the present application;

[0031] Fig.13 is an exploded view of a knife holder according to some embodiments of the present application;

[0032] Fig.14 is an exploded view of a knife holder according to some embodiments of the present application;

[0033] Fig.15 A schematic diagram of a deformable folding knife in a longitudinal position according to some embodiments of the present application;

[0034] Fig.16 A schematic diagram of a deformable folding knife in a longitudinal position ready to rotate according to some embodiments of the present application;

[0035] Fig.17 A schematic diagram of a deformable folding knife in a transition position according to some embodiments of the present application;

[0036] Fig.18 Schematic diagram of a deformable folding knife in a lateral position according to some embodiments of the present application.

[0037] In the figure: 10, knife shell; 11, outer shell; 12, main accommodating cavity; 13, opening; 14, main shaft; 15, second self-locking portion; 20, inner shell; 21, upper shell; 211, positioning groove; 2111, moving area; 2112, positioning area; 212, first guide rail; 213, self-locking hole; 22, lower shell; 221, second guide rail; 222, fixing surface; 223, locking notch; 23, accommodating cavity; 231 , avoidance area; 24, port; 25, fastener; 30, drive member; 31, second connection hole; 32, positioning portion; 33, first connection hole; 34, drive surface; 40, knife seat; 41, first knife holder; 411, first guide member; 412, spring slot; 413, first mounting slot; 42, second knife holder; 421, second guide member; 422, second mounting slot; 423, third mounting slot; 43, middle knife Frame; 431, main body; 432, extension; 433, shaft; 434, fixing; 435, limiter; 44, knife holder spring; 45, blade; 451, mounting hole; 452, limiter; 50, sliding assembly; 51, sliding bracket; 511, matching part; 512, sliding panel; 52, sliding spring; 60, insurance assembly; 61, insurance push button; 611, base; 612, slot ; 613, guide groove; 614, bending part; 615, stop part; 616, sliding groove; 617, long slot; 621, locking member; 622, locking spring; 63, guide member; 64, safety spring; 70, self-locking assembly; 71, self-locking push button; 711, first self-locking part; 72, self-locking spring; 80, locking assembly; 81, locking member; 811, locking part; 82, locking spring; 90, side clip. DETAILED DESCRIPTION

[0038] The present invention is further described below in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0039] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0040] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0041] It should be noted that the terms "front", "back", etc. are used to indicate the orientation to facilitate the description of the present invention and simplify the description, rather than to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. It can also be expressed as "above", "below", or "one side", "the other side", etc., and cannot be understood as limiting the specific scope of protection of the present invention.

[0042] A deformable folding knife, such as Figures 1 to 7 As shown, it includes: a knife housing 10, a knife seat 40, a first guide assembly and a second guide assembly. The knife housing 10 includes an outer shell 11 and an inner shell 20. The outer shell 11 is provided with a main accommodating chamber 12 and an opening 13. The opening 13 is provided on the side of the outer shell 11 so that the main accommodating chamber 12 is connected to the outside. The inner shell 20 is rotatably and foldably installed in the main accommodating chamber 12 through a main shaft 14, and can be rotated out of or into the main accommodating chamber 12 through the opening 13. The inner shell 20 is provided with an accommodating chamber 23 and a port 24. The port 24 is opened at the front end of the inner shell 20 so that the accommodating chamber 23 is connected to the outside. The knife seat 40 is used to carry a blade 45. The knife seat 40 is rotatably installed in the accommodating chamber 23, and can be rotated out of or into the accommodating chamber 23 through the port 24. The inner shell 20 is further provided with an escape area 231, which is located on one or both sides of the front end of the inner shell 20. The escape area 231 laterally connects the accommodating chamber 23 and the outside. When the knife holder 40 rotates, the escape area 231 is suitable for the knife holder 40 to rotate out of or into the accommodating chamber 23, so as to avoid interference between the blade 45 and the inner shell 20. Specifically, when the inner shell 20 rotates out of the main accommodating chamber 12, the knife is in an unfolded state, the blade of the blade 45 extends out of the accommodating chamber 23 through the port 24, and the blade 45 can be rotated by the knife holder 40 to achieve multi-angle positioning and use; when the inner shell 20 rotates into the main accommodating chamber 12, the knife is in a folded state, and the blade 45 and the inner shell 20 are accommodated in the main accommodating chamber 12, so as to avoid accidental injury caused by the exposure of the blade 45, and at the same time, it is conducive to reducing the length of the knife and making it easy to carry.

[0043] like Figures 8 to 10As shown, the first guide assembly is provided with a first guide rail 212 and a driving member 30, and the driving member 30 is drivably connected to the front face of the tool holder 40 so that the tool holder 40 can move along the first guide rail 212, that is, the driving member 30 is pivotally connected to the front face of the tool holder 40, and the driving member 30 can drive the tool holder 40 to move along the first guide rail 212 by translating and / or rotating the driving member 30; the second guide assembly is provided with a fixed surface 222 and a second guide rail 221, and the second guide rail 221 is opened on the fixed surface 222, and the back face of the tool holder 40 is pivotally connected to the second guide rail 221 so that the tool holder 40 can move along the second guide rail 221.

[0044] It is understandable that the knife holder 40 is connected to the first guide rail 212 and the second guide rail 221 at the same time, and can move along the first guide rail 212 and the second guide rail 221. The knife holder 40 can be translated and / or rotated by the common guidance of the first guide rail 212 and the second guide rail 221. In other words, when the driving member 30 is translated and / or rotated relative to the fixed surface 222, the knife holder 40 can be selectively rotated into or out of the accommodating cavity 23, so that the knife holder 40 can be alternately changed in multiple positioning angles between the longitudinal position and the transverse position, so that the tool can be switched between the cutting knife and the scraper, which is easy to operate, conducive to improving work efficiency, and has a compact structure.

[0045] In some embodiments, Figures 7 to 10 As shown, the deformable folding knife further includes a sliding assembly 50, and the driving member 30 is provided with a driving surface 34. The sliding assembly 50 is assembled on the driving surface 34, so as to drive the driving member 30 to translate and / or rotate. Specifically, by pushing the sliding assembly 50 to move longitudinally along the axial direction, the driving member 30 can be driven to translate and / or rotate, and the knife holder 40 can be further driven to translate and / or rotate, and then the knife holder 40 can be rotated out or in relative to the accommodating cavity 23 to realize multi-angle steering.

[0046] Specifically, Figure 7 and Figure 8 As shown, the knife seat 40 includes a first guide member 411 and a second guide member 421, which are staggeredly arranged on the front and back of the knife seat 40, respectively. The first guide member 411 protrudes from the front of the knife seat 40 and is pivotally connected to the front end of the driving surface 34 and the first guide rail 212, so that the first guide member 411 drives the knife seat 40 to translate and / or rotate along the first guide rail 212. The second guide member 421 protrudes from the back of the knife seat 40 and is pivotally connected to the second guide rail 221, so that the second guide member 421 drives the knife seat 40 to translate and / or rotate along the second guide rail 221, so that the longitudinal driving force of the sliding assembly 50 on the driving member 30 is converted into a steering force of the driving member 30 on the knife seat 40 at multiple positioning angles.

[0047] That is to say, the first guide member 411 is pivotally connected to the driving member 30, so that the knife seat 40 can move under the driving action of the driving member 30, and the first guide member 411 is pivotally connected to the first guide rail 212 for coordinated movement, and the second guide member 421 is coordinated with the second guide rail 221 for movement to generate deflection and guidance, further generating a thrust to push the knife seat 40 in the rotation direction, so that the knife seat 40 rotates to a preset position, so as to meet the multi-purpose use requirements of the blade 45 in the longitudinal, transverse and oblique directions, and improve the application range of the tool.

[0048] Specifically, a first connecting hole 33 is provided at the front end of the driving member 30, and a second connecting hole 31 is provided at the rear end of the driving member 30. The first guide member 411 on the tool holder 40 is pivotally connected to the first connecting hole 33, and the sliding assembly 50 is pivotally connected to the second connecting hole 31. When the sliding member of the sliding assembly 50 is pushed to move longitudinally along the axial direction, the driving member 30 is pushed to translate and / or rotate, and the first guide member 411 is further driven to move along the first guide rail 212, and the second guide member 421 moves along the second guide rail 221, so that the tool holder 40 can smoothly translate and / or rotate along the accommodating cavity 23 to achieve multi-angle positioning of the tool.

[0049] In some embodiments, Figures 15 to 18 As shown, the first guide rail 212 and the second guide rail 221 are arc structures with different trajectories. The first guide rail 212 extends forward in a direction deviating from the second guide rail 221, and the second guide rail 221 extends outward in a direction deviating from the first guide rail 212, so that the knife seat 40 gradually changes direction and turns under the action of forces in two different directions, gradually turning out of the port 24 or turning back to the accommodating cavity 23, so that the blade 45 on the knife seat 40 can change direction at multiple positioning angles between the longitudinal position and the lateral position.

[0050] Specifically, since the projections of the first guide member 411 and the second guide member 421 on the fixed surface 222 do not overlap, and the distance between the projections of the first guide member 411 and the second guide member 421 on the fixed surface 222 remains unchanged, when the extension direction of the first guide rail 212 and the extension direction of the second guide rail 221 deviate from each other, and the first guide member 411 moves along the first guide rail 212 and the second guide member 421 moves along the second guide rail 221, under the guidance of the first guide rail 212 and the second guide rail 221, the relative positions of the first guide member 411 and the second guide member 421 on the fixed surface 222 change, further enabling the tool holder 40 to smoothly translate and / or rotate, so as to realize multi-angle positioning of the tool, realize multiple uses of one tool, and facilitate storage and carrying.

[0051] In some embodiments, Figures 7 to 10As shown, the inner shell 20 includes an upper shell 21 and a lower shell 22, and the upper shell 21 and the lower shell 22 are fixed by fasteners 25. The driving member 30 is accommodated in the accommodating cavity 23 between the upper shell 21 and the lower shell 22, and is located between the upper shell 21 and the knife seat 40. The upper shell 21 is provided with a first guide rail 212 and a positioning groove 211. The first guide rail 212 is formed on the inner surface of the upper shell 21, and is pivotally connected with the first guide member 411 on the knife seat 40. The positioning groove 211 is opened on the surface of the upper shell 21 and extends in the axial direction. The driving member 30 can be elastically locked in the positioning groove 211, so that the blade 45 of the knife seat 40 is locked in the longitudinal position, the transverse position or the transition position between the longitudinal position and the transverse position, for example, 30°, 45°, or 60° with the axis. The fixing surface 222 is located on the surface of the lower shell 22, and the second guide rail 221 is opened on the surface of the lower shell 22, so as to be pivotally connected with the second guide member 421 on the knife holder 40, that is, the knife holder 40 is movably connected to the upper shell 21 and the lower shell 22 through the first guide member 411 and the second guide member 421. Through the joint action of the first guide rail 212 on the back of the upper shell 21 and the second guide rail 221 on the surface of the lower shell 22, the movement path of the knife holder 40 is limited, so that the blade 45 smoothly transitions to multiple positioning positions without adding complex accessories, which is conducive to reducing production costs.

[0052] In some embodiments, Figures 8 to 11 As shown, the lower end of the sliding assembly 50 passes through the positioning slot 211 and is pivotally connected to the driving member 30, and the sliding assembly 50 is suitable for moving along the positioning slot 211. Further, by pushing the sliding assembly 50, the driving member 30 is driven to drive the knife holder 40 to translate and / or rotate. Specifically, the sliding assembly 50 includes a sliding bracket 51 and a sliding spring 52. The sliding bracket 51 passes through the positioning slot 211 and is pivotally connected to the second connecting hole 31 of the driving member 30. The sliding spring 52 is connected to the sliding bracket 51 and abuts between the driving member 30 and the lower shell 22. By pressing the sliding bracket 51, the driving member 30 can be movably locked in the positioning slot 211. The end of the sliding bracket 51 extending outward from the upper shell 21 is provided with a sliding panel 512, which is convenient for pushing the sliding assembly 50 to move along the positioning slot 211.

[0053] Further, combined with Figures 15 to 18 As shown, the positioning groove 211 includes an elongated moving area 2111 extending longitudinally along the axial direction and a plurality of positioning areas 2112 distributed at intervals. The sliding bracket 51 is provided with an elongated matching portion 511 on the side facing the driving member 30. The matching portion 511 is suitable for moving along the moving area 2111 of the positioning groove 211. The driving member 30 is protrudingly provided with a positioning portion 32 on the side facing the positioning groove 211. The positioning portion 32 is suitable for matching with the positioning area 2112 to lock the driving member 30 so that the tool holder 40 is maintained in an optional position.

[0054] That is, the matching portion 511 of the sliding bracket 51 is adapted to move along the moving area 2111 of the positioning groove 211, and the positioning portion 32 of the driving member 30 is adapted to be detachably matched with the positioning area 2112 of the positioning groove 211 to position the knife seat 40, and further to position the position of the blade 45. In an optional embodiment, the positioning portion 32 is concentrically arranged with the second connecting hole 31, so that the structure is more compact and easy to operate.

[0055] Specifically, the sliding bracket 51 is pressed and pushed, and the sliding spring sheet 52 is compressed, so that the sliding bracket 51 and the driving member 30 move inward, the positioning portion 32 of the driving member 30 is separated from the positioning area 2112 of the positioning groove 211 of the upper shell 21, and the matching portion 511 of the sliding bracket 51 is matched with the moving area 2111 of the positioning groove 211 to move, so that the sliding assembly 50 can drive the driving member 30 to translate and / or rotate. The sliding bracket 51 is released, and the sliding spring sheet 52 causes the sliding bracket 51 and the driving member 30 to move outward, the matching portion 511 of the sliding bracket 51 is separated from the moving area 2111 of the positioning groove 211, and the positioning portion 32 of the driving member 30 is matched with the positioning area 2112 to lock the driving member 30, and further to locate the position of the knife seat 40. The position of the knife holder 40 can be converted and locked by single-handed operation, which improves the convenience and safety of operation. Through the first guide rail 212 and the second guide rail 221, the knife holder 40 can move and turn smoothly, making it easier and smoother to press and push the sliding component 50.

[0056] In some embodiments, Figures 10 to 12 As shown, the deformable folding knife also includes a safety assembly 60, which includes a safety push button 61, a safety spring 64 and a stopper 621. The safety push button 61 is longitudinally movably arranged on the side of the upper shell 21 to stop the blade 45. The safety spring 64 extends longitudinally along the axial direction and abuts against the safety push button 61, so that when the knife seat 40 leaves the longitudinal position, the front end of the safety push button 61 can abut against the knife seat 40 to avoid the blade 45. When the knife seat 40 returns to the longitudinal position, the safety push button 61 is reset to stop the blade 45; the upper end of the safety push button 61 A locking groove 612 is opened on the side, and a locking member 621 is arranged on the inner surface of the upper shell 21 and can be elastically rotatably pressed against the driving member 30. The locking member 621 is suitable for being detachably engaged with the locking groove 612. When the knife seat 40 is located in the longitudinal position, the locking member 621 is suitable for being engaged with the locking groove 612, and the safety push button 61 avoids the blade 45, so that the blade 45 can be rotated out of the accommodating cavity 23. When the knife seat 40 leaves the longitudinal position, the locking member 621 is separated from the locking groove 612 under the action of the driving member 30, so that the front end of the safety push button 61 presses against the knife seat 40.

[0057] Specifically, the safety push button 61 includes a base 611, a guide groove 613, a bent portion 614 and a stop portion 615. The guide groove 613 is opened in the base 611 to accommodate the safety spring 64 and is suitable for cooperating with the guide member 63 so that the base 611 is accommodated in the accommodating cavity 23 along the longitudinal movement of the guide member 63. The upper side surface of the base 611 is provided with a locking groove 612 and a long locking groove 617 at intervals. The locking member 621 is rotatably pressed against the driving member 30 and is suitable for moving along the long locking groove 617 or being locked in the locking groove 612. The bent portion 614 extends from the base 611 to the outside of the inner shell 20 and is exposed on the outside of the inner shell 20 so as to be pushed. The movable bending portion 614 allows the safety push button 61 to move along the guide member 63, and a sliding groove 616 is formed between the base 611 and the bending portion 614, so that it can be movably connected to the upper shell 21. The stop portion 615 extends from the base 611 toward the avoidance area 231 to cover at least a portion of the avoidance area 231. When the blade 45 is in the longitudinal position, the stop portion 615 is located below the blade 45 to stop the blade 45 from rotating out of the accommodating cavity 23. When the locking member 621 is engaged with the locking groove 612 or the front end of the safety push button 61 is against the blade seat 40, the safety push button 61 moves to make the stop portion 615 avoid the blade 45, so that the blade 45 can be rotated out of or into the accommodating cavity 23.

[0058] In a specific embodiment, the first guide members 411 and the second guide members 421 on both sides of the knife seat 40 are located on the same straight line parallel to the blade, the starting end of the first guide rail 212 and the starting end of the second guide rail 221 are located on the same straight line parallel to the axis, the first guide rail 212 extends forward in a direction deviating from the second guide rail 221, and the second guide rail 221 extends outward in a direction away from the first guide rail 212, and the end of the first guide rail 212 and the end of the second guide rail 221 are located on the same straight line perpendicular to the axis, when the first guide member 411 is located at the starting end of the first guide rail 212 and the second guide member 421 is located at the second guide rail 2 21, the knife seat 40 is located at the starting end of the first guide rail 212, and the blade 45 extends out of the port 24, so that it can be used as a longitudinal cutting knife. When the first guide member 411 turns and moves along the first guide rail 212, and the second guide member 421 turns and moves along the second guide rail 221, the knife seat 40 turns out of the accommodating cavity 23 and the turning angle is generally 0°~90° or 90°~180°. At this time, the blade 45 is converted to an inclined state. When the first guide member 411 is located at the end of the first guide rail 212 and the second guide member 421 is located at the end of the second guide rail 221, the knife seat 40 is rotated to the transverse position, and the blade 45 is converted to a transverse state, so that it can be used as a transverse scraper.

[0059] Specifically, if Fig.15As shown, the inner shell 20 is in the unfolded position, the positioning portion 32 of the driving member 30 is located in the positioning area 2112 on the right side of the positioning groove 211 of the upper shell 21, and the driving member 30 is located at the rightmost side. It can be understood that the sliding assembly 50 is also located at the rightmost side, the first guide member 411 of the knife seat 40 is connected to the first connecting hole 33 at the front end of the driving member 30, and the first guide member 411 of the knife seat 40 is located at the end of the upper right side of the first guide rail 212, and the second guide member 421 of the knife seat 40 is located at the end of the lower right side of the second guide rail 221. The knife seat 40 is located in the longitudinal position, so that the blade 45 is parallel to the axis and can be used as a cutting knife. At this time, the safety push button 61 is located at the initial position on the leftmost side, one end of the locking member 621 is against the driving member 30, and the other end of the locking member 621 is against the safety push button 61, and the contact point is located on the right side of the long slot 617, and the stopper 615 is located below the blade 45 to stop the blade 45 from rotating.

[0060] like Fig.16 As shown, the safety push button 61 is moved to the right, at which time one end of the locking member 621 abuts against the driving member 30, and the other end of the locking member 621 abuts against the safety push button 61, and is engaged with the locking groove 612, so that the stopper 615 deviates from the blade 45, avoiding interference with the blade 45 when the subsequent knife seat 40 drives the blade 45 to change direction and rotate.

[0061] like Fig.17 As shown, the sliding assembly 50 is pressed, so that the positioning portion 32 of the driving member 30 is separated from the positioning area 2112 of the positioning groove 211 of the upper shell 21, and the matching portion 511 of the sliding bracket 51 cooperates with the moving area 2111, so that the sliding assembly 50 can drive the driving member 30 to translate and / or rotate, and further make the first guide member 411 of the knife seat 40 turn and move along the first guide rail 212, and the second guide member 421 of the knife seat 40 turn and move along the second guide rail 221, so that the first guide member 411 moves The second guide member 421 moves to the middle area of ​​the second guide rail 221; the sliding assembly 50 is released, and the sliding spring 52 causes the sliding bracket 51 and the driving member 30 to move outward, and the positioning portion 32 of the driving member 30 cooperates with the positioning area 2112 in the middle of the sliding groove 616 of the upper shell 21, locking the knife seat 40 in the transition position, and the blade 45 is completely exposed from the inner shell 20, and is at an angle of 45° with the knife shell 10, so that it can be used as an oblique scraper.

[0062] It is understandable that when the driving member 30 moves and / or rotates, the locking member 621 is moved in a Fig.17It is rotated counterclockwise in the direction shown to separate from the locking groove 612. Further, the force of the safety spring 64 causes the safety push button 61 to move forward, and the front end of the base 611 of the safety push button 61 abuts against the knife seat 40 to avoid the safety push button 61 from being completely reset. At this time, the stopper 615 is still deviated from the blade 45 to avoid interference with the blade 45, thereby ensuring that the knife seat 40 can drive the blade 45 to change direction and rotate smoothly.

[0063] like Fig.18 As shown, the sliding assembly 50 is pressed, so that the positioning portion 32 of the driving member 30 is separated from the positioning area 2112 of the positioning groove 211 of the upper shell 21, and the matching portion 511 of the sliding bracket 51 cooperates with the moving area 2111, so that the sliding assembly 50 can drive the driving member 30 to translate and / or rotate, and further make the first guide member 411 of the knife seat 40 turn and move along the first guide rail 212, and the second guide member 421 of the knife seat 40 turn and move along the second guide rail 221, so that the first guide member 411 moves to The second guide member 421 moves to the end of the lower left side of the first guide rail 212, and the second guide member 421 moves to the end of the upper left side of the second guide rail 221; the sliding assembly 50 is released, and the sliding spring 52 causes the sliding bracket 51 and the driving member 30 to move outward, and the positioning portion 32 of the driving member 30 cooperates with the positioning area 2112 on the left side of the sliding groove 616 of the upper shell 21, locking the knife seat 40 in a horizontal position, and the blade 45 is completely exposed to the inner shell 20, and is at an angle of 90° with the knife shell 10, so that it can be used as a horizontal scraper. It can be understood that by further extending the second guide rail 221, the knife seat 40 can continue to translate and / or rotate, so that the blade 45 is at an angle of 135° or even 180° with the inner shell 20, or any angle between 90° and 180°.

[0064] It can be understood that when the driving member 30 translates and / or rotates, the force of the safety spring 64 causes the safety push button 61 to move forward, the front end of the base 611 of the safety push button 61 abuts against the knife seat 40, and the locking member 621 is moved in the position under the action of the locking spring 622. Fig.18 Rotate clockwise in the direction shown, one end of the locking member 621 abuts against the driving member 30, and the other end abuts against the safety push button 61, and the contact point moves to the right along the long slot 617, and the stopper 615 is still deviated from the blade 45 to avoid interference with the blade 45, so that the knife seat 40 drives the blade 45 to change direction and rotate smoothly. When the knife seat 40 is in the longitudinal position, the safety push button 61 is completely reset, and the contact point between the locking member 621 and the safety push button 61 is located at the rightmost side of the long slot 617.

[0065] Furthermore, when the sliding assembly 50 is pressed to move to the right, the knife seat 40 is able to rotate from the horizontal position to the longitudinal position via the transition position, and the knife seat 40 abuts against the front end of the base 611 of the safety push button 61. The rotation of the knife seat 40 enables the safety push button 61 to overcome the resistance of the safety spring 64 and move to the right, thereby preventing the stopper 615 from interfering with the blade 45 and hindering the knife seat 40 from changing direction and rotating. At this time, the contact point between the locking member 621 and the safety push button 61 moves to the left along the long slot 617. When the knife seat 40 is close to the longitudinal position, the knife seat 40 is separated from the safety push button 61, and the force of the safety spring 64 causes the safety push button 61 to move forward and reset. The contact point between the locking member 621 and the safety push button 61 is located at the rightmost side of the long slot 617, and the stopper 615 is located below the blade 45, thereby stopping the blade 45 from rotating.

[0066] In some embodiments, Figure 7 As shown, the deformable folding knife further includes a self-locking assembly 70, which includes a self-locking push button 71 and a self-locking spring 72. The self-locking push button 71 is longitudinally movable and is disposed on the inner shell 20, and is suitable for abutting against the driving member 30. The self-locking spring 72 provides a force for the self-locking push button 71 to move toward the driving member 30. Figure 3 As shown, the self-locking push button 71 is provided with a first self-locking portion 711 protrudingly, the upper shell 21 is provided with a self-locking hole 213, the first self-locking portion 711 extends toward the outer shell 11 through the self-locking hole 213, and the inner surface of the outer shell 11 is provided with a second self-locking portion 15 protrudingly, and the driving member 30 acts on the self-locking push button 71, so that the first self-locking portion 711 can be detachably abutted against the second self-locking portion 15.

[0067] Specifically, combined with Figure 3 and Figures 15 to 18 As shown, when the deformable folding knife is in the unfolded state, the second self-locking portion 15 on the shell 11 is located beside the self-locking hole 213 of the upper shell 21; Fig.15 As shown, further, when the blade 45 is in the longitudinal position, the drive member 30 abuts against the self-locking push button 71, and the self-locking spring 72 is compressed, so that the self-locking push button 71 moves longitudinally backward along the axial direction, further separating the first self-locking portion 711 from the second self-locking portion 15, and the inner shell 20 can be rotated relative to the outer shell 11 and folded into the main accommodating cavity 12.

[0068] like Fig.17 and Fig.18 As shown, when the blade 45 leaves the longitudinal position, the drive member 30 separates from the self-locking push button 71, and the self-locking spring 72 pushes the self-locking push button 71 to move forward longitudinally along the axial direction, further causing the first self-locking portion 711 to abut against the second self-locking portion 15, thereby preventing the inner shell 20 from rotating relative to the outer shell 11, so that the deformable folding knife remains in the unfolded state, thereby preventing the blade 45 from being unable to be smoothly accommodated in the main accommodating cavity 12 and causing accidental injury.

[0069] It is understandable that when the blade 45 is in the longitudinal position, the inner shell 20 rotates relative to the outer shell 11, and the blade 45 can be smoothly accommodated in the main accommodating chamber 12, while when the blade 45 is in the transition position and the transverse position, even if the inner shell 20 can rotate relative to the outer shell 11, the blade 45 will interfere with the outer shell 11, which may cause damage to the outer shell 11 or cause accidental injury to the user. The self-locking component 70 allows the inner shell 20 to be rotated and folded to the outer shell 11 when the knife holder 40 is in the longitudinal position, and the knife holder 40 can be kept unfolded when it is in other positions, so as to avoid accidental injury caused by the blade 45 not being able to be smoothly accommodated in the main accommodating chamber 12.

[0070] In some embodiments, Figure 2 , Fig. 9 and Fig.10 As shown, the deformable folding knife also includes a locking assembly 80, which includes a locking member 81 and a locking spring 82. The locking member 81 can be elastically pressed to the outer shell 11 through the locking spring 82. The locking member 81 is provided with a radially protruding locking portion 811, and the inner shell 20 is provided with a plurality of locking notches 223. The locking portion 811 can be detachably engaged with the locking notches 223, so that the inner shell 20 can be kept in an expanded state or a folded state.

[0071] Specifically, by pressing the locking member 81, the locking spring 82 is compressed, so that the locking portion 811 is separated from the locking notch 223, and the inner shell 20 can be rotated relative to the outer shell 11 to rotate out of or into the main accommodating cavity 12; the locking member 81 is released, and when the locking portion 811 engages with the locking notch 223, the inner shell 20 can be maintained in the unfolded state or the folded state.

[0072] In a specific embodiment, a locking notch 223 is provided on each side of the lower shell 22. When the locking portion 811 is connected to the locking notch 223 on one side, the inner shell 20 remains in an unfolded state, so as to avoid the inner shell 20 rotating relative to the outer shell 11 during use and causing safety hazards, thereby facilitating cutting or scraping operations; when the locking portion 811 is connected to the locking notch 223 on the other side, the inner shell 20 remains in a folded state, so as to avoid the inner shell 20 rotating out of the main accommodating cavity 12 during storage or carrying, thereby exposing the blade and causing safety hazards.

[0073] In some embodiments, Fig.13 and Fig.14As shown, the tool holder 40 includes a first tool holder 41, an intermediate tool holder 43, a second tool holder 42 and a tool holder spring piece 44. The first tool holder 41 is provided with a spring piece groove 412 and a first mounting groove 413 on the side facing the second tool holder 42. The intermediate tool holder 43 is accommodated in the first mounting groove 413 and is rotatably connected to the first tool holder 41 and the second tool holder 42. The tool holder spring piece 44 is accommodated in the spring piece groove 412 to provide a force to the intermediate tool holder 43 against the second tool holder 42, so that the blade 45 can be detachably installed between the second tool holder 42 and the intermediate tool holder 43. The first guide member 411 protrudes radially outward from the first tool holder 41, and is pivotally connected to the first connecting hole 33 at the front end of the driving member 30, and is connected to the first guide rail 212 on the inner side of the upper shell 21. It is driven by the driving member 30 and can move along the first guide rail 212. The second guide member 421 protrudes radially outward from the second tool holder 42 eccentrically relative to the first guide member 411, and is connected to the second guide rail 221 of the lower shell 22.

[0074] Specifically, the intermediate blade holder 43 includes a main body 431, a rotating shaft 433 and an extending portion 432, wherein the rotating shaft 433 is located on both sides of the upper end of the main body 431, and is rotatably connected to the first blade holder 41, and the extending portion 432 extends upward from the upper end of the main body 431, is exposed to the outside from the upper end of the blade holder 40, and is movably located between the first blade holder 41 and the second blade holder 42. Further, a limiting portion 435 and a fixing portion 434 are protrudingly provided at the lower end of the main body 431 toward one side of the second blade holder 42, and the blade 45 is provided with a through limiting opening 452 and a mounting hole 451, and the limiting portion 435 on the main body 431 is suitable for cooperating with the limiting opening 452, and the fixing portion 434 is suitable for passing through the mounting hole 451, so as to fix the blade 45. A second mounting groove 422 and a third mounting groove 423 are provided on one side of the second tool holder 42 facing the middle tool holder 43 . The second mounting groove 422 is used to accommodate the end of the fixing portion 434 , and the third mounting groove 423 is used to avoid the end of the limiting portion 435 .

[0075] It can be understood that the extension portion 432 and the main body portion 431 are located on both sides of the rotation axis of the rotating shaft portion 433, and the elastic force of the blade holder spring 44 can be overcome by moving the extension portion 432 to rotate the main body portion 431 away from the second blade holder 42, and further separate the fixing portion 434 located at the lower end of the main body portion 431 from the mounting hole 451, so that the blade 45 can be replaced. In a specific embodiment, the thickness of the main body portion 431 is gradually reduced from top to bottom, so that the structure of the blade holder 40 is more compact, which is conducive to reducing the volume of the blade holder 40.

[0076] In some embodiments, Figure 2 and Figure 7As shown, the deformable folding knife also includes a side clip 90, which is elastically arranged on the outer side of the shell 11 and is used to clamp objects, such as notebooks, pockets, etc., which helps to avoid the loss of the knife.

[0077] The above describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A deformable folding knife, characterized in that: include: A knife housing, the knife housing comprising an outer shell and an inner shell, the inner shell being rotatably and foldably mounted on the outer shell; the inner shell being provided with a receiving cavity and a port, the port being opened at the front end of the inner shell; A knife seat, the knife seat carries a blade, and the knife seat is rotatably mounted in the accommodating cavity; a first guide assembly, wherein the first guide assembly is provided with a first guide rail and a driving member, wherein the driving member is drivably connected to the front face of the knife holder so that the knife holder can move along the first guide rail, and the driving member is provided with a driving surface; and A second guide assembly, wherein the second guide assembly is provided with a fixed surface and a second guide rail, the second guide rail is provided on the fixed surface, and the back surface of the knife holder is pivotally connected to the second guide rail so that the knife holder can move along the second guide rail; The first guide rail and the second guide rail are arc structures with different trajectories, the first guide rail extends forward in a direction deviating from the second guide rail, and the second guide rail extends outward in a direction deviating from the first guide rail, so that the knife seat is connected to the fixed surface and the driving surface in two different directions, wherein, when the knife seat gradually changes direction and turns under the dual forces of the fixed surface and the driving surface, the knife seat gradually rotates out of the port or rotates back to the accommodating cavity, so that the blade on the knife seat can change direction at multiple positioning angles between the longitudinal position and the transverse position.

2. The deformable folding knife according to claim 1, characterized in that: The tool holder further comprises a first guide member and a second guide member, wherein the first guide member and the second guide member are respectively arranged on the front and back sides of the tool holder in an offset manner, the first guide member protrudes from the front side of the tool holder and is pivotally connected to the front end of the drive surface, and is pivotally connected to the first guide rail, so that the first guide member drives the tool holder to translate and / or rotate along the first guide rail, and the second guide member protrudes from the back side of the tool holder and is pivotally connected to the second guide rail, so that the second guide member drives the tool holder to translate and / or rotate along the second guide rail, so that the longitudinal driving force of the sliding member on the driving member is converted into a steering force of the driving member on the tool holder at multiple positioning angles.

3. The deformable folding knife according to claim 2, characterized in that: The first guide members and the second guide members on both sides of the knife seat are located on the same straight line parallel to the blade, the starting end of the first guide rail and the starting end of the second guide rail are located on the same straight line parallel to the axis, the first guide rail extends forward along a direction deviating from the second guide rail, and the second guide rail extends outward in a direction away from the first guide rail, and the end of the first guide rail and the end of the second guide rail are located on the same straight line perpendicular to the axis. When the first guide member is located at the starting end of the first guide rail and the second guide member is located at the starting end of the second guide rail, the knife seat is located in a longitudinal position, and the blade extends out of the port to be used as a longitudinal cutting knife. When the first guide member turns and moves along the first guide rail and the second guide member turns and moves along the second guide rail, the knife seat turns out of the accommodating cavity and the turning angle is generally 0° to 90° or 90° to 180°, and the blade is converted to an inclined state. When the first guide member is located at the end of the first guide rail and the second guide member is located at the end of the second guide rail, the knife seat turns to a transverse position, and the blade is converted to a transverse state to be used as a transverse scraper.

4. The deformable folding knife according to claim 2, characterized in that: The inner shell includes an upper shell and a lower shell, the driving member is accommodated in a accommodating cavity between the upper shell and the lower shell, and is located between the upper shell and the knife seat, the upper shell is provided with the first guide rail and a positioning groove, the first guide rail is formed on the inner surface of the upper shell, the positioning groove is opened on the surface of the upper shell, the fixing surface is located on the surface of the lower shell, and the second guide rail is opened on the surface of the lower shell, the knife seat is movably connected to the upper shell and the lower shell through the first guide member and the second guide member, the lower end of the sliding assembly is connected to the rear end of the driving member through the positioning groove, so that the knife seat can be translated and / or rotated by pushing the driving member, wherein the driving member can be elastically locked in the positioning groove, so that the blade of the knife seat is locked in the longitudinal position, the transverse position or the direction-changing transition position between the longitudinal position and the transverse position.

5. The deformable folding knife according to claim 4, characterized in that: The utility model also comprises a safety component, wherein the safety component comprises a safety push button, a safety spring and a stopper, wherein the safety push button can be longitudinally movably arranged on the side of the upper shell for stopping the blade, and the safety spring longitudinally extends along the axial direction and abuts against the safety push button, so that when the knife seat leaves the longitudinal position, the front end of the safety push button can abut against the knife seat to avoid the blade, and when the knife seat returns to the longitudinal position, the safety push button can be reset to stop the blade; a stopper groove is provided on the upper side surface of the safety push button, the stopper groove is arranged on the inner surface of the upper shell, and can be elastically rotatably abutted against the driving member, the stopper groove is suitable for being detachably engaged with the stopper groove, when the knife seat is in the longitudinal position, the stopper groove is suitable for being snapped with the stopper groove, the safety push button abuts against the blade, so that the blade can be rotated out of the accommodating cavity, and when the knife seat leaves the longitudinal position, the stopper groove is separated from the stopper groove under the action of the driving member, so that the front end of the safety push button abuts against the knife seat.

6. The deformable folding knife according to claim 5, characterized in that: It also includes a self-locking component, which includes a self-locking push button and a self-locking spring. The self-locking push button can be longitudinally movably arranged on the inner shell and is suitable for resisting against the driving member. The self-locking spring provides a force for the self-locking push button to move toward the driving member. The self-locking push button is protrudingly provided with a first self-locking portion, and the upper shell is provided with a self-locking hole. The first self-locking portion extends toward the outer shell through the self-locking hole, and the inner surface of the outer shell is protrudingly provided with a second self-locking portion, wherein, when the deformable folding knife is in an unfolded state, the second self-locking portion is located beside the self-locking hole, and when the blade leaves the longitudinal position, the first self-locking portion resists against the second self-locking portion, so that the deformable folding knife remains in the unfolded state, and when the blade is in the longitudinal position, the driving member pushes the self-locking push button, so that the first self-locking portion is separated from the second self-locking portion, and the inner shell can be rotated and folded relative to the outer shell.

7. The deformable folding knife according to any one of claims 2 to 6, characterized in that: The knife holder comprises a first knife holder, an intermediate knife holder, a second knife holder and a knife holder spring piece, wherein the intermediate knife holder is rotatably connected to the first knife holder and the second knife holder, and the knife holder spring piece is capable of providing the intermediate knife holder with a force against the second knife holder, so that the blade is detachably mounted between the second knife holder and the intermediate knife holder, the first guide member protrudes radially outward from the first knife holder, and the second guide member protrudes radially outward from the second knife holder eccentrically relative to the first guide member; The intermediate tool holder includes a main body, a rotating shaft portion located on both sides of the main body, and an extension portion located at the upper end of the main body. The extension portion and the main body are located on both sides of the center line of the rotating shaft. The extension portion is exposed to the outside from the upper end of the tool holder and is movably located between the first tool holder and the second tool holder. The extension portion is moved to overcome the elastic force of the tool holder spring sheet so that the main body is away from the second tool holder, so that the blade can be replaced.

8. The deformable folding knife according to claim 7, characterized in that: It also includes a locking assembly, which includes a locking piece and a locking spring. The locking piece can be elastically pressed to be connected to the outer shell, the locking piece is provided with a radially protruding locking portion, and the inner shell is provided with a plurality of locking notches. The locking portion can be detachably engaged with the locking notches to keep the inner shell in an expanded state or a folded state.

9. The deformable folding knife according to claim 8, characterized in that: The first knife holder is provided with a spring slot for installing the knife holder spring, and a first mounting slot for accommodating the intermediate knife holder on a side facing the second knife holder, the blade is provided with a through-limiting opening and a mounting hole, the main body is provided with a limiting portion and a fixing portion protrudingly on a side facing the second knife holder, the limiting portion is suitable for cooperating with the limiting opening, and the fixing portion is suitable for passing through the mounting hole to fix the blade, the second knife holder is provided with a second mounting slot and a third mounting slot on a side facing the intermediate knife holder, the second mounting slot is used to accommodate the end of the fixing portion, and the third mounting slot is used to avoid the end of the limiting portion, and the fixing portion can be separated from the mounting hole by toggling the extension portion; The sliding assembly includes a sliding bracket and a sliding spring sheet, the sliding bracket passes through the positioning slot and is connected to the driving member, the sliding spring sheet is connected to the sliding bracket and abuts between the driving member and the lower shell, so that the driving member can be movably locked in the positioning slot, and one end of the sliding bracket extending out of the outer side of the inner shell is provided with a sliding panel to facilitate pushing the sliding assembly to move along the positioning slot; The positioning groove includes an elongated moving area extending longitudinally along the axis direction and a plurality of positioning areas distributed at intervals. The sliding bracket is provided with an elongated matching portion on a side facing the driving member, and the matching portion is suitable for moving along the moving area of ​​the positioning groove. The driving member is protrudingly provided with a positioning portion on a side facing the positioning groove, and the positioning portion is suitable for matching with the positioning area to lock the driving member. The driving member is provided with a first connecting hole and a second connecting hole, the first connecting hole is suitable for connecting with the first guide member on the first tool holder, and the second connecting hole is suitable for connecting with the sliding assembly, and when the sliding assembly is pushed, the tool holder is pushed to move by the driving member; The inner shell is provided with an escape zone, the escape zone is located on one side or both sides of the front end of the inner shell, the escape zone is laterally connected to the accommodating cavity and the outside, and when the knife seat rotates, the escape zone is suitable for the knife seat to rotate out of or into the accommodating cavity; The safety assembly also includes a guide member, which is fixed to the inner shell, and the safety push button includes a base, a guide groove, a bent portion and a stopper, wherein the base can be longitudinally movably accommodated in the accommodating cavity, the guide groove is arranged on the base to accommodate the safety spring, and is suitable for cooperating with the guide member to make the base move longitudinally, and a clamping groove and a long clamping groove are provided at intervals on the upper side surface of the base, and the clamping member can be rotatably pressed against the driving member under the action of the clamping spring, and is suitable for moving along the long clamping groove or being clamped in the clamping groove, the bent portion extends from the base to the outer side of the inner shell in a bent manner and exposed to the outer side of the inner shell, a sliding groove is formed between the base and the bent portion, and can be movably connected to the inner shell, and the stopper extends from the base to the direction of the avoidance area to cover at least a part of the avoidance area, and when the blade is in the longitudinal position, the stopper is located below the blade to stop the blade from rotating out of the accommodating cavity; The deformable folding knife also includes a side clip, which is elastically arranged on the outer side of the shell and is used for clamping objects.

Images