CN216859794U

CN216859794U - Safe folding knife with password locking structure

Info

Publication number: CN216859794U
Application number: CN202122934908.8U
Authority: CN
Inventors: 梁苏
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-27
Filing date: 2021-11-27
Publication date: 2022-07-01
Anticipated expiration: 2031-11-27

Abstract

The utility model discloses a safety folding knife with a password locking structure, which comprises a knife handle, a bottom bone, a cutting edge and a dial knob, wherein the bottom bone is arranged in the knife handle, one end of the bottom bone is connected with the cutting edge, the dial knob is arranged on the connecting part of the bottom bone and the cutting edge, the dial knob is internally provided with a top sleeve, the dial knob is connected with the top sleeve through a fixing pin, the lower end of the top sleeve is connected with a bottom sleeve, a fixed dial wheel shaft is arranged in the bottom sleeve, a first dial wheel group, a second dial wheel group and a third dial wheel group are arranged on the fixed dial wheel shaft from top to bottom, a spring is arranged between the bottom sleeve and the first dial wheel group, a clamping locking block is arranged on one side, located at the bottom bone, of the first dial wheel group, a lock tongue box is arranged at the upper end of the inner side of the clamping locking block, and a lock tongue is arranged in the lock tongue box. The utility model utilizes the lock disc structure to match with the lock tongue to lock the blade, thereby avoiding random unlocking and use, and improving the safety and the locking effect of the blade.

Description

Safe folding knife with password locking structure

Technical Field

The utility model relates to the field of folding knives, in particular to a safe folding knife with a password locking structure.

Background

In the prior art, the folding knife is convenient to carry, and in the carrying process, the whole folding knife is in a closed state, and the knife edge part is hidden in the knife handle, so that the folding knife is safe. However, when the folding knife is in an open state as a whole and performs cutting, chipping, chopping and other actions, the state of the knife head part where the knife edge is located is often unstable, and potential safety hazards are caused; meanwhile, after the folding knife is wholly closed, under certain conditions, the knife head part of the folding knife is not firmly closed and is automatically opened, so that potential safety hazards are caused.

Disclosure of Invention

The invention aims to solve the problems and provide a safety folding knife with a code locking structure.

The invention achieves the above purpose through the following technical scheme:

a safe folding knife with a password locking structure comprises a knife handle, a bottom bone, a cutting edge and a dial knob, wherein the bottom bone is arranged in the knife handle, one end of the bottom bone is connected with the cutting edge, the dial knob is arranged on the connecting part of the bottom bone and the cutting edge, a top sleeve is arranged in the dial knob, the dial knob is connected with the top sleeve through a fixing pin, the lower end of the top sleeve is connected with a bottom sleeve, a fixed dial wheel shaft is arranged in the bottom sleeve, a first dial wheel set, a second dial wheel set and a third dial wheel set are arranged on the fixed dial wheel shaft from top to bottom, a bottom fixing block is connected to the bottom of the fixed dial wheel shaft, a spring is arranged between the bottom sleeve and the first dial wheel set, a clamping locking block is arranged on one side of the bottom bone, and a spring bolt box is arranged at the upper end of the inner side of the clamping locking block, the spring bolt incasement portion is provided with the spring bolt, the spring bolt case with be provided with the spring bolt spring between the spring bolt, the screens locking piece is located end bone one side is provided with the pull rod, the screens locking piece with be provided with the locking piece spring between the end bone.

Preferably, the following components: the cutting edge is rotatably connected with the bottom bone, and the fixed poking wheel shaft is connected with the fixed pin through threads.

So set up, fixed thumb wheel axle and fixed pin are used for connecting and fixing.

Preferably, the following components: the top sleeve is rotationally connected with the bottom sleeve, the bottom sleeve is in interference fit with the cutting edge, and the top sleeve is rotationally connected with the fixed poking wheel shaft.

So set up, utilize to rotate to connect and guaranteed the smooth and easy nature of opening and shutting to and the stability of its own.

Preferably, the following components: the first shifting wheel set, the second shifting wheel set and the third shifting wheel set are rotatably connected with the fixed shifting wheel shaft, and the positions of the fixed shifting wheel shaft, which correspond to the first shifting wheel set, the second shifting wheel set and the third shifting wheel set, are provided with clamping blocks.

So set up, first thumb wheel group second thumb wheel group third thumb wheel group is used for withstanding the screens locking piece, thus it is right the cutting edge locks.

Preferably, the following components: screens locking piece sliding connection the end bone, spring bolt case sliding connection the screens locking piece, spring bolt sliding connection the spring bolt case.

So set up, screens locking piece is used for the cooperation the spring bolt case to will the spring bolt lifts up or puts down, thereby it is right the cutting edge locks or unclamps.

Preferably, the following components: the pull rod is connected with the bottom bone in a sliding mode and is connected with the clamping locking block through threads.

So set up, the pull rod is used for drawing the screens locking piece.

Preferably, the following components: the blade is provided with a groove corresponding to the lock tongue.

So set up, set up the groove and be used for locking.

Compared with the prior art, the invention has the following beneficial effects:

1. utilize lock dish structure cooperation spring bolt to lock the cutting edge to avoid random unblock to use, improved the locking effect of security and cutting edge.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a first structural schematic diagram of a safety folding knife with a code locking structure according to the invention;

FIG. 2 is a second structural schematic diagram of the safety folding knife with the code locking structure according to the invention;

FIG. 3 is a schematic view of the structure of the blade of the safety folding knife with the combination locking structure according to the present invention;

FIG. 4 is a schematic view of the inside structure of the safety folding knife with a combination locking structure for opening the knife edge of the safety folding knife;

FIG. 5 is a schematic view of a knife edge retracting structure of the safety folding knife with a code locking structure according to the present invention;

FIG. 6 is a schematic view of the inner structure of the dead bolt box of the safety folding knife with the code locking structure according to the invention;

fig. 7 is a sectional view of a fixed thumb wheel shaft of the safety folding knife with a code locking structure according to the invention.

The reference numerals are illustrated below:

1. a knife handle; 2. a bottom bone; 3. a blade; 4. a dial knob; 5. fixing the pin; 6. a top sleeve; 7. a bottom sleeve; 8. a latch bolt; 9. a bottom fixing block; 10. a first dial wheel group; 11. a second dial wheel group; 12. a third dial wheel group; 13. fixing a shifting wheel shaft; 14. a spring; 15. a clamping locking block; 16. a bolt housing; 17. a latch bolt spring; 18. a lock spring; 19. a pull rod.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention is further described below with reference to the accompanying drawings:

example 1

As shown in fig. 1-7, a safety folding knife with a password locking structure comprises a knife handle 1, a bottom frame 2, a cutting edge 3, and a dial knob 4, wherein the bottom frame 2 is arranged inside the knife handle 1, one end of the bottom frame 2 is connected with the cutting edge 3, the dial knob 4 is arranged on the connection part of the bottom frame 2 and the cutting edge 3, a top sleeve 6 is arranged inside the dial knob 4, the dial knob 4 is connected with the top sleeve 6 through a fixing pin 5, the bottom sleeve 6 is connected with a bottom sleeve 7 at the lower end, a fixed dial wheel shaft 13 is arranged inside the bottom sleeve 7, a first dial wheel set 10, a second dial wheel set 11 and a third dial wheel set 12 are arranged on the fixed dial wheel shaft 13 from top to bottom, a bottom fixing block 9 is connected to the bottom of the fixed dial wheel shaft 13, a spring 14 is arranged between the bottom sleeve 7 and the first dial wheel set 10, and a clamping lock block 15 is arranged on one side of the bottom frame 2 of the first dial wheel set 10, the inside upper end of screens locking piece 15 is provided with spring bolt case 16, and spring bolt case 16 is inside to be provided with spring bolt 8, is provided with spring bolt spring 17 between spring bolt case 16 and the spring bolt 8, and screens locking piece 15 is located end bone 2 one side and is provided with pull rod 19, is provided with locking piece spring 18 between screens locking piece 15 and the end bone 2.

Preferably, the following components: the cutting edge 3 is rotatably connected with the bottom bone 2, the fixed thumb wheel shaft 13 is connected with the fixed pin 5 through threads, and the fixed thumb wheel shaft 13 and the fixed pin 5 are used for connection and fixation; the top sleeve 6 is rotatably connected with the bottom sleeve 7, the bottom sleeve 7 is in interference fit with the cutting edge 3, the top sleeve 6 is rotatably connected with the fixed poking wheel shaft 13, and the smoothness of opening and closing and the stability of the top sleeve are guaranteed by the rotary connection; the first shifting wheel group 10, the second shifting wheel group 11 and the third shifting wheel group 12 are rotatably connected with a fixed shifting wheel shaft 13, clamping blocks are arranged at positions of the fixed shifting wheel shaft 13 corresponding to the first shifting wheel group 10, the second shifting wheel group 11 and the third shifting wheel group 12, and the first shifting wheel group 10, the second shifting wheel group 11 and the third shifting wheel group 12 are used for propping against a clamping locking block 15 so as to lock the cutting edge 3; the clamping lock block 15 is connected with the bottom frame 2 in a sliding mode, the bolt box 16 is connected with the clamping lock block 15 in a sliding mode, the bolt 8 is connected with the bolt box 16 in a sliding mode, the clamping lock block 15 is used for being matched with the bolt box 16 so as to lift or put down the bolt 8 and lock or loosen the blade 3, the pull rod 19 is connected with the bottom frame 2 in a sliding mode, the pull rod 19 is connected with the clamping lock block 15 through threads, and the pull rod 19 is used for drawing the clamping lock block 15; the blade 3 is provided with a groove corresponding to the bolt 8, and the groove is used for locking.

The working principle is as follows: when the state of the cutting edge 3 can be opened, when the dial knob 4 is rotated for several times and the specified password position is reached according to the operation of the fixed-form password lock, the notch clamping grooves on the first dial wheel group 10, the second dial wheel group 11 and the third dial wheel group 12 are all at the same position, the clamping locking block 15 can push the clamping locking block 15 into the notch clamping grooves of the first dial wheel group 10, the second dial wheel group 11 and the third dial wheel group 12 under the action of the locking block spring 18, meanwhile, the clamping locking block 15 drives the cylinder of the lock tongue box 16 to move up and down through the chute of the clamping locking block 15 until the clamping locking block 15 reaches the bottom, at the moment, the lock tongue box 16 drives the lock tongue 8 to move and separate from the clamping opening of the cutting edge 3, at the moment, the cutting edge 3 is unlocked, when the cutting edge 3 needs to retract, the pull rod 19 is pulled, the clamping locking block spring 18 is overcome, the clamping locking block 15 is moved, the lock tongue box 16 is driven to move, at the moment, the locking tongue 8 reaches the position capable of locking the cutting edge 3, through the effect of spring bolt spring 17, spring bolt 8 inserts the locked groove of cutting edge 3 and can lock after cutting edge 3 closed in place this moment.

The foregoing shows and describes the general principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed.

Claims

1. The utility model provides a safe folding knife with password locking structure which characterized in that: the knife handle comprises a knife handle (1), a bottom bone (2), a cutting edge (3) and a dial knob (4), wherein the bottom bone (2) is arranged in the knife handle (1), one end of the bottom bone (2) is connected with the cutting edge (3), the dial knob (4) is arranged on the connecting part of the bottom bone (2) and the cutting edge (3), a top sleeve (6) is arranged in the dial knob (4), the dial knob (4) is connected with the top sleeve (6) through a fixing pin (5), the lower end of the top sleeve (6) is connected with a bottom sleeve (7), a fixed dial wheel shaft (13) is arranged in the bottom sleeve (7), a first dial wheel group (10), a second dial wheel group (11) and a third dial wheel group (12) are arranged on the fixed dial wheel shaft (13) from top to bottom, a bottom fixing block (9) is connected to the bottom of the fixed dial wheel shaft (13), bottom sleeve (7) with be provided with spring (14) between first dial wheelset (10), first dial wheelset (10) are located end bone (2) one side is provided with screens locking piece (15), screens locking piece (15) inboard upper end is provided with spring bolt case (16), spring bolt case (16) inside is provided with spring bolt (8), spring bolt case (16) with be provided with spring bolt spring (17) between spring bolt (8), screens locking piece (15) are located end bone (2) one side is provided with pull rod (19), screens locking piece (15) with be provided with locking piece spring (18) between end bone (2).

2. The safety folding knife with the code locking structure as claimed in claim 1, wherein: the cutting edge (3) is rotatably connected with the bottom bone (2), and the fixed poking wheel shaft (13) is connected with the fixed pin (5) through threads.

3. The safety folding knife with the code locking structure as claimed in claim 1, wherein: the top sleeve (6) is rotatably connected with the bottom sleeve (7), the bottom sleeve (7) is in interference fit with the cutting edge (3), and the top sleeve (6) is rotatably connected with the fixed poking wheel shaft (13).

4. The safety folding knife with the code locking structure as claimed in claim 1, wherein: the first shifting wheel set (10), the second shifting wheel set (11) and the third shifting wheel set (12) are rotatably connected with the fixed shifting wheel shaft (13), and clamping blocks are arranged at the positions, corresponding to the first shifting wheel set (10), the second shifting wheel set (11) and the third shifting wheel set (12), of the fixed shifting wheel shaft (13).

5. The safety folding knife with the code locking structure as claimed in claim 1, wherein: screens locking piece (15) sliding connection end bone (2), spring bolt case (16) sliding connection screens locking piece (15), spring bolt (8) sliding connection spring bolt case (16).

6. The safety folding knife with the code locking structure as claimed in claim 1, wherein: the pull rod (19) is connected with the bottom bone (2) in a sliding mode, and the pull rod (19) is connected with the clamping locking block (15) through threads.

7. The safety folding knife with the code locking structure as claimed in claim 1, wherein: the blade (3) is provided with a groove corresponding to the bolt (8).