Folding knife

Abstract

The utility model discloses a folding knife, belongs to a manual knife, and aims to solve the problem that the cutting function can be realized only when a knife head component of the conventional folding knife is unfolded, and as an opening is arranged at the rear end of a containing cavity, a blade can be accommodated in the containing cavity or a handle extends out of the containing cavity through the opening for use when the knife head component is folded into the containing cavity. When the folding knife is held by one hand and the knife head assembly is inconvenient to unfold, the blade can extend out of the handle for cutting. When some simple cutting is carried out, cutting can be carried out without unfolding the tool bit assembly. Therefore, the use flexibility of the folding knife is improved.

Description

Technical Field

[0001] The utility model belongs to a manual knife, in particular to a folding knife whose blade can be extended for use in a folded storage state. Background Art

[0002] The existing folding knife can only achieve the cutting function when the blade assembly is unfolded. However, when it is inconvenient to unfold the blade assembly while holding the folding knife with one hand, it is difficult for the existing folding knife to achieve the cutting function. When performing some simple cutting, it is cumbersome to unfold the blade assembly. Utility Model Content

[0003] The technical problem to be solved and the technical task proposed by the utility model are to overcome the defect that the existing folding knife can only realize the cutting function when the knife head assembly is unfolded, and to provide a folding knife in which the blade can be extended for use in a folded storage state.

[0004] In order to achieve the above object, the folding knife of the utility model is characterized by comprising:

[0005] A handle having a receiving cavity, wherein a rear end of the receiving cavity is open;

[0006] The cutter head assembly is pivotally mounted at the front of the handle so as to be folded into or unfolded from the accommodating cavity. The cutter head assembly includes a cutter holder and a blade movably arranged on the cutter holder. When the cutter head assembly is folded into the accommodating cavity, the blade can be located in the accommodating cavity and stored, or extend from the accommodating cavity through the opening of the handle for use.

[0007] The folding knife is provided with an opening at the rear end of the accommodating cavity, so that when the blade assembly is folded into the accommodating cavity, the blade can be located in the accommodating cavity and stored, or extend out of the accommodating cavity through the opening for use. When it is inconvenient to unfold the blade assembly while holding the folding knife with one hand, the blade can be extended out of the handle for cutting. When performing some simple cutting, cutting can be performed without unfolding the blade assembly.

[0008] Preferably, in order to avoid the safety hazard caused by the blade accidentally extending out of the handle due to the existence of the opening, a movable shielding member movable between a shielding position and a evasion position is arranged at the opening. When the movable shielding member is in the shielding position, the blade is prevented from extending out of the handle from the accommodating cavity through the opening. When the movable shielding member is in the evasion position, the blade is allowed to extend out of the handle from the accommodating cavity through the opening. Accordingly, the blade can be shielded or the blade can be allowed to extend out of the handle from the accommodating cavity through the opening by changing the position of the movable shielding member.

[0009] Furthermore, the movable shielding member and the handle are provided with matching positioning structures, and the movable shielding member is positioned by the positioning structures when it is in the shielding position and the avoidance position, so as to prevent the movable shielding member from accidentally changing position.

[0010] Specifically, the positioning structure includes a positioning pit and a positioning protrusion which are separately arranged on the movable shielding member and the handle, and the positioning protrusion is located in the positioning pit to achieve positioning.

[0011] In particular, for the convenience of operation, the movable shielding member is assembled on the handle through the shaft rotation, so that the movable shielding member can be manually moved to change position.

[0012] Preferably, the blade holder comprises an outer frame, an inner frame and a control member, wherein the inner frame is slidably arranged in the outer frame, the control member is connected to the inner frame and exposed outside the outer frame so as to be controlled to move the inner frame, and the blade is mounted on the inner frame. Accordingly, the inner frame can be moved as required by controlling the control member.

[0013] Preferably, the outer frame has a plurality of positioning slots distributed in the front-to-back direction, and the control member is positioned in the positioning slots to fix the position of the blade, thereby the blade can be positioned at different positions to meet the cutting requirements.

[0014] In particular, a first elastic element is disposed between the inner frame and the operating member, and the elastic force of the first elastic element causes the operating member to be positioned in the corresponding positioning groove, thereby preventing the blade from being misplaced during cutting.

[0015] In order to facilitate the replacement of the blade, the inner frame is equipped with a lock, and the blade is locked on the inner frame by the lock. The outer frame is equipped with an unlocking member, and when the inner frame moves forward to the lock corresponding to the unlocking member, the unlocking member unlocks the lock.

[0016] In order to reliably lock the blade on the inner frame, the lock is swingably assembled on the inner frame, and a magnet is arranged on the inner frame. The blade and the lock are adsorbed by the magnet and abut against the inner frame, and the unlocking member is arranged to unlock the lock by side pressing.

[0017] The utility model provides an opening at the rear end of the accommodating cavity, so that when the cutter head assembly is folded into the accommodating cavity, the blade can be located in the accommodating cavity and stored, or extend the handle from the accommodating cavity through the opening for use. When it is inconvenient to unfold the cutter head assembly while holding the folding knife with one hand, the blade can be extended out of the handle for cutting. When performing some simple cutting, cutting can be performed without unfolding the cutter head assembly. Accordingly, the flexibility of using the folding knife is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an isometric view of the folding knife of the utility model;

[0019] Figure 2 It is a schematic side orthographic projection diagram of the folding knife of the utility model;

[0020] Figure 3 for Figure 2 A top view of

[0021] Figure 4 for Figure 3 AA section view;

[0022] Figure 5 for Figure 1 A schematic diagram of the structure of the handle and blade assembly of the folding knife;

[0023] Figure 6 for Figure 5 a schematic diagram of another view of the structure shown;

[0024] Figure 7 for Figure 5 A schematic diagram of the structure of the cutter head assembly shown;

[0025] Figure 8 for Figure 7 a schematic diagram of another view of the structure shown;

[0026] Fig. 9 It is a schematic diagram of the folding knife of the utility model when the blade extends out of the handle when the folding knife is in the folded state;

[0027] Fig.10 for Fig. 9 A schematic diagram of the cross-sectional structure of the state shown;

[0028] Fig.11 It is a schematic diagram of the blade of the folding knife of the present invention being located in the storage cavity when the folding knife is in a folded state;

[0029] Fig.12 for Fig.11 A schematic diagram of the cross-sectional structure of the state shown;

[0030] Description of the numbers in the figure:

[0031] 100 handle, 101 first handle body, 102 second handle body, 103 accommodating cavity, 104 opening, 105 movable shielding member, 106 positioning pit, 107 positioning protrusion, 108 shaft, 109 clip, 110 blocking rod;

[0032] 200 pivots;

[0033] 300 cutter head assembly;

[0034] 310 tool holder, 311 outer frame, 3111 first frame body, 3112 second frame body, 3113 slit, 3114 positioning groove, 312 inner frame, 3121 magnetic steel, 3122 slot, 313 operating member, 3131 plug rod, 3132 shoulder, 314 first elastic element, 315 locking member, 3151 tongue, 3152 force bearing portion, 316 unlocking member, 317 second elastic element;

[0035] 320 blade, 321 notch. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model are intended to cover non-exclusive inclusions. For example, a method or product comprising a series of technical features is not necessarily limited to those technical features clearly listed, but may also include other technical features that are not clearly listed and can be included in the method or product.

[0038] In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Among them, "upper" and "lower", "left" and "right", "front" and "back" are opposite directions.

[0039] In the description of the present utility model, it is necessary to understand that the technical features defined by the terms "first", "second" and the like with sequential concepts are only for the purpose of clearly describing the defined technical features so that the defined technical features can be clearly distinguished from other technical features, but do not represent such naming in actual implementation, and therefore cannot be understood as a limitation of the present utility model.

[0040] The present invention is described in detail below in conjunction with specific embodiments and drawings.

[0041] like Figure 1-6 , Figure 9-12 As shown, the folding knife includes a handle 100 and a blade assembly 300 .

[0042] The handle 100 is assembled from a first handle body 101 and a second handle body 102. The first handle body 101 and the second handle body 102 are spaced apart and form a receiving chamber 103 therebetween. An opening 104 is provided at the rear end of the receiving chamber 103. A movable shielding member 105 is disposed at the opening 104. The movable shielding member 105 is rotatably assembled on the first handle body 101 and the second handle body 102 via an axis 108. The movable shielding member 105 can thereby rotate and move between a shielding position and an avoidance position. The movable shielding member 105 is as shown in FIG. Figure 11-12When the blade 320 is in the blocking position as shown, it is prevented from extending out of the handle 100 from the receiving cavity through the opening 104. The movable shielding member 105 is as shown in FIG. Figure 9-10 The illustrated position is the position where the blade 320 extends from the accommodating cavity through the opening 104 and the handle is out of the way. The movable shielding member 105 and the handle 100 are provided with matching positioning structures, which include positioning pits 106 and positioning protrusions 107 respectively provided on the movable shielding member and the handle. When the movable shielding member 105 is in the shielding position and the avoidance position, the positioning protrusion 107 is located in the positioning pit 106 and is positioned.

[0043] In addition, a stop rod 110 is provided on the handle 100, and the stop rod 110 abuts against the tail of the tool holder 310 to lock the tool head assembly in a folded state or an unfolded state to prevent the tool holder from accidentally turning over.

[0044] The cutter head assembly 300 is assembled at the front of the handle 100 via the pivot 200 to be folded into the accommodating cavity or unfolded from the accommodating cavity. The cutter head assembly 300 includes a cutter holder 310 and a blade 320 movably arranged on the cutter holder. The cutter holder 310 includes an outer frame 311, an inner frame 312 and a control member 313. The inner frame 312 is slidably arranged in the outer frame 311, the control member 313 is connected to the inner frame 312 and exposed outside the outer frame 311 to be controlled to move with the inner frame 312, and the blade 320 is assembled on the inner frame 312. Specifically, the inner frame 312 has a slot 3122, and the control member 313 has an insertion rod 3131, and the insertion rod 3131 is inserted in the slot 3122 to realize the connection between the control member and the connection. In order to facilitate assembly, the outer frame 311 includes a first frame body 3111 and a second frame body 3112 that are fastened together, and the first frame body 3111 and the second frame body 3112 form an installation space for the inner frame. The front ends of the first frame and the second frame are provided with slit exits for the blade to extend out of the outer frame or retract into the outer frame. The backs of the first frame 3111 and the second frame 3112 are provided with slits 3113 extending in the front-to-back direction, and the second frame is provided with a plurality of positioning grooves 3114 distributed along the front-to-back direction of the slits. The shoulder 3132 of the control member is located in the positioning groove 3114 to realize the positioning of the inner frame and to fix the position of the blade. A first elastic element 314 is placed between the inner frame 312 and the control member 313, and the elastic force of the first elastic element 314 causes the shoulder 3132 of the control member to be positioned in the corresponding positioning groove.

[0045] The inner frame 312 is provided with a lock 315, and the lock 315 has a tongue 3151 and a force-bearing portion 3152. The back of the blade 320 has a notch 321. The blade 320 is attached to the left side of the inner frame 312 and its notch 321 is caught by the tongue 3151 and locked on the inner frame by the lock. The outer frame 311 is provided with an unlocking member 316. When the inner frame 312 moves forward to the lock 315 corresponding to the unlocking member 316, the unlocking member 316 is pressed to the right side, and the unlocking member contacts the force-bearing portion 3152 of the lock, causing the tongue 3151 to move to the right and leave the notch 321 to unlock the lock 315. At this time, the blade can be removed from the blade holder or loaded into the blade holder.

[0046] The lock 315 is swingably mounted on the inner frame 312, and the inner frame 312 is provided with a magnetic steel 3121. The blade 320 and the lock 315 are adsorbed by the magnetic steel 3121 and abut against the inner frame 312. Thus, the blade can be prevented from shaking, and the lock can be ensured to reliably lock the blade.

[0047] In view of the above structure, when the cutter head assembly 300 is folded into the accommodating cavity 103 , the blade 320 can be located in the accommodating cavity 103 and stored, or extend the handle from the accommodating cavity 103 through the opening 104 for use.

Claims

1. Folding knife, characterized by include: A handle (100) having a receiving cavity (103) with an opening (104) at the rear end of the receiving cavity; The cutter head assembly (300) is mounted on the front part of the handle via a pivot (200) so as to be folded into or unfolded from the accommodating cavity. The cutter head assembly comprises a cutter holder (310) and a blade (320) movably arranged on the cutter holder. When the cutter head assembly is folded into the accommodating cavity, the blade (320) can be located in the accommodating cavity and stored, or can extend from the accommodating cavity through the opening of the handle for use.

2. The folding knife according to claim 1, characterized in that: The opening (104) is provided with a movable shielding member (105) movable between a shielding position and an avoidance position. When the movable shielding member (105) is in the shielding position, the blade is prevented from extending the handle from the accommodating cavity through the opening (104). When the movable shielding member is in the avoidance position, the blade is in a position to extend the handle from the accommodating cavity through the opening (104).

3. The folding knife according to claim 2, characterized in that: Matching positioning structures are provided on the movable shielding member (105) and the handle (100), and the movable shielding member is positioned by the positioning structure when it is located at the shielding position and the avoidance position.

4. The folding knife according to claim 3, characterized in that: The positioning structure comprises a positioning pit (106) and a positioning protrusion (107) which are separately arranged on the movable shielding member and the handle.

5. The folding knife according to any one of claims 2 to 4, characterized in that: The movable shielding member (105) is rotatably assembled on the handle (100) via the shaft (108).

6. The folding knife according to any one of claims 1 to 4, characterized in that: The blade holder (310) comprises an outer frame (311), an inner frame (312) and a control member (313). The inner frame (312) is slidably arranged in the outer frame (311). The control member (313) is connected to the inner frame (312) and exposed outside the outer frame so as to be controlled to move the inner frame. The blade (320) is assembled on the inner frame (312).

7. The folding knife according to claim 6, characterized in that: The outer frame (311) has a plurality of positioning grooves (3114) distributed in the front-to-back direction, and the control member (313) is positioned in the positioning grooves (3114) to fix the position of the blade.

8. The folding knife according to claim 7, characterized in that: A first elastic element (314) is disposed between the inner frame (312) and the operating member (313), and the elastic force of the first elastic element (314) causes the operating member (313) to be positioned in the corresponding positioning groove (3114).

9. The folding knife according to claim 6, characterized in that: The inner frame (312) is provided with a locking member (315), and the blade (320) is locked on the inner frame (312) by the locking member (315). The outer frame (311) is provided with an unlocking member (316), and when the inner frame moves forward until the locking member (315) corresponds to the unlocking member (316), the unlocking member unlocks the locking member.

10. The folding knife according to claim 9, characterized in that: The lock member (315) is swingably mounted on the inner frame (312), a magnetic steel (3121) is arranged on the inner frame (312), the blade (320) and the lock member (315) are adsorbed by the magnetic steel (3121) and abut against the inner frame (312), and the unlocking member (316) is configured to be unlocked by pressing sideways.

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