CN212471565U

CN212471565U - Quick opening mechanism of shaft lock

Info

Publication number: CN212471565U
Application number: CN202020583391.5U
Authority: CN
Inventors: 梁孝轩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2021-02-05
Anticipated expiration: 2030-04-17

Abstract

The utility model provides a quick sword mechanism of opening of axle lock, including the handle of a knife, blade and axle lock mechanism, install on the handle of a knife blade with the blade rotates, the root of a knife periphery of blade interval ground is concave to be equipped with first screens groove and second screens groove, first screens groove is located same one side with the cutting edge of blade, second screens groove is located one side of blade knife tip dorsad, the root of a knife periphery of blade still is equipped with the portion of supporting, the portion of supporting is located the back of a knife blade department of blade, axle lock mechanism installs on the handle of a knife, when the blade is in closed position, axle lock mechanism and first screens groove joint, the portion of supporting protrusion can make the blade rotate outside the one end of handle of a knife blade knife tip dorsad, in the time of supporting portion atress, in order to allow axle lock mechanism and first screens groove to break away from the joint, and make axle lock mechanism and second screens groove joint, in order to be located the. The shaft lock quick opening mechanism can prevent the thumb of a user from being cut by the blade when the knife is opened by one hand.

Description

Quick opening mechanism of shaft lock

Technical Field

The utility model relates to a cutter field, concretely relates to quick unclamping mechanism of shaft lock.

Background

The folding knife is a knife with a blade capable of being folded and embedded into the knife handle, and the blade can move relative to the knife handle, so that the blade is prevented from being retracted into the knife handle when the folding knife is used, the folding knife is generally provided with a locking mechanism, the blade is locked at an open position through the locking mechanism so as to prevent the blade from rotating in the process of cutting an object, and the blade is locked at a closed position through the locking mechanism so as to prevent the blade in the closed state from being accidentally opened from the knife handle to cause injury to users.

In the prior art, the locking structure of the folding knife generally has a line lock form, a shaft lock form, a back lock form and the like. The wire lock type and the back lock type are simple in structure, but the machining precision requirement of the structure is high, the structure is unstable due to factors such as abrasion and the like, and the phenomenon that locking cannot be achieved or even unlocking is caused easily is avoided. When the shaft lock folding knife uses a quick knife opening mode of single-hand knife opening, knife opening is mostly carried out by pushing a knife nail or a knife opening groove. And under the blade closed state, blade edge and push-type broach nail or open the sword groove and all lie in the same side of pivot, and the blade is opened the in-process, and the blade edge is easy accidental and is hurted the thumb.

Disclosure of Invention

The utility model aims at providing a quick mechanism of opening a knife of shaft lock, it can avoid user's thumb to be cut by the blade when singlehanded opening a knife.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

a quick knife opening mechanism of a shaft lock comprises a knife handle, a blade and a shaft lock mechanism, wherein the blade is rotatably arranged on the knife handle, a first clamping groove and a second clamping groove are concavely arranged at intervals on the periphery of a knife root of the blade, the first clamping groove and a cutting edge of the blade are positioned on the same side, the second clamping groove is positioned on one side of the blade, which is back to a knife tip, the periphery of the knife root of the blade is also provided with a pushing part, the pushing part is positioned at the knife back of the blade, the shaft lock mechanism is arranged on the knife handle, when the blade is positioned at a closed position, the shaft lock mechanism is clamped with the first clamping groove, the pushing part protrudes out of one end of the knife handle, which is back to the knife tip, the blade can be rotated when the pushing part is stressed, so that the shaft lock mechanism is separated from the clamping connection with the first clamping groove, and the shaft lock mechanism is clamped with the second clamping groove, to position the blade in an open position.

Furthermore, the side surface of the pushing and supporting part back to the cutting edge is provided with anti-skidding teeth.

Furthermore, the edge of the knife root of the blade is also concavely provided with a pushing groove, and the pushing groove is positioned on one side of the pushing part close to the knife tip.

Furthermore, a knife opening groove is formed in the knife body of the knife blade in a penetrating mode, and the knife opening groove is close to the knife back of the knife blade.

Furthermore, the handle of a knife is equipped with the slide opening, axle locking mechanism includes locking axle and elastic component, the locking axle passes the slide opening and can slide in the slide opening, the locking axle can alternatively with first screens groove reaches second screens groove joint, the relative both ends of elastic component respectively with the handle of a knife reaches the locking shaft is connected.

Further, first screens groove surrounds through the connection face, closed locking face, arc transition face and the location fillet that connect gradually and forms, connect the face with the arc transition face is relative, and compares the arc transition face is close to the knife tip, the location fillet is along the orientation the protruding extension of the direction of connecting the face, when the blade is in closed position, the locking axle with the location fillet reaches closed locking face contact.

Further, the second screens groove is the C shape groove that forms through two opening locking surfaces and an circular arc transition surface surround, and two are opened the locking surface and set up relatively, two are opened the locking surface to circular arc transition surface connection, when the blade was in the open position, the locking axle was opened the locking surface contact with two.

Further, the elastic piece is an omega spring, and the elastic piece is contained in the knife handle.

Furthermore, a guide groove is concavely formed in the inner side of the cutter handle, a limit nail is arranged on the blade, and the end part of the limit nail is contained in the guide groove in a sliding mode so as to guide the rotation of the blade.

Further, the quick opening mechanism of shaft lock still includes the clip, the clip install in on the lateral wall of handle of a knife.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

1. when the shaft lock quick opening mechanism is used for opening a knife by one hand, the thumb quickly pushes the pushing part, the blade is stressed to rotate so as to be converted into a half-open state for releasing the locking from a closed locking state, and then the blade continues to rotate under the action of inertia until the blade is completely opened. When the shaft lock quick opening mechanism is used for opening a knife with one hand, the thumb can be separated from the blade after quickly pushing the pushing part without always keeping contact with the knife body, so that the thumb can be prevented from being cut by the knife edge when the quick opening mechanism is used in a quick opening mode of the one-hand opening knife.

2. Above-mentioned quick opening knife mechanism of shaft lock still link up on the blade of blade and has seted up the opening knife groove, makes quick opening knife mechanism of shaft lock have the utility model discloses in realize opening knife and prior art through promoting the opening knife groove through promoting the portion of pushing away to realize two kinds of opening knife modes of opening knife to supply the user to select as required.

Drawings

Fig. 1 is a perspective view of the quick opening mechanism of the shaft lock in an open state according to a preferred embodiment of the present invention.

Fig. 2 is a left side view of the shaft lock quick opening mechanism shown in fig. 1.

Fig. 3 is an exploded view of the shaft lock quick opening mechanism shown in fig. 1 from another perspective.

Fig. 4 is an exploded view of the shaft lock quick release mechanism of fig. 3 after the inner liner and the outer guard are assembled together.

Fig. 5 is an enlarged view of a portion of the shaft lock quick opening mechanism shown in fig. 4.

Fig. 6 is a block diagram of a blade of the shaft lock quick opening mechanism of fig. 2.

Fig. 7 is a structural diagram of the quick opening mechanism of the shaft lock in the closed state according to the preferred embodiment of the present invention.

FIG. 8 is a block diagram of the shaft lock quick release mechanism of FIG. 7 with the first handle removed.

Fig. 9 is a structural view of the quick shaft lock opener mechanism in a half-open state of unlocking according to the preferred embodiment of the present invention.

FIG. 10 is a block diagram of the shaft lock quick release mechanism of FIG. 9 with the first handle removed.

FIG. 11 is a block diagram of the shaft lock quick release mechanism of FIG. 2 with the first handle removed.

Description of the main elements

100. A shaft lock quick opening mechanism; 2. a knife handle; 21. a slide hole; 22. a first handle; 23. a second handle; 24. a partition plate; 25. an outer shroud; 26. an inner liner plate; 27. a guide groove; 3. a blade; 31. a first clamping groove; 311. a connecting surface; 313. Closing the locking surface; 314. an arc transition surface; 315. positioning a fillet; 33. a second clamping groove; 331. opening the locking surface; 334. A circular arc transition surface; 34. a pushing part; 341. anti-slip teeth; 35. a push groove; 36. cutting a cutter groove; 37. a limit pin; 4. a shaft lock mechanism; 41. a locking shaft; 413. a limiting flange; 43. an elastic member; 5. and (6) clamping.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1 and fig. 2, a preferred embodiment of the present invention provides a shaft lock quick opening mechanism 100, which includes a handle 2, a blade 3 and a shaft lock mechanism 4, wherein the blade 3 is rotatably installed on the handle 2, and the shaft lock mechanism 4 is installed on the handle 2 for locking the blade 3 at an opening position and a closing position.

Referring to fig. 3, the tool holder 2 is provided with a sliding hole 21, specifically, in the present embodiment, the tool holder 2 includes a first tool shank 22, a second tool shank 23, and a partition plate 24, the first tool shank 22 and the second tool shank 23 are disposed opposite to each other, the partition plate 24 is disposed between the first tool shank 22 and the second tool shank 23 and connected to the first tool shank 22 and the second tool shank 23 through a rivet, and a blade storage space for storing the blade 3 is defined by the first tool shank 22, the second tool shank 23, and the partition plate 24. In the present embodiment, each of the first and

second tool shanks

22 and 23 includes an outer guard 25 and an inner lining 26 disposed on a side of the outer guard 25 facing the blade 3, the outer guard 25, the inner lining 26 and the spacer 24 are connected by rivets, and the sliding holes 21 are correspondingly disposed on the same ends of the outer guard 25 and the inner lining 26. The setting of space bar 24 can protect the blade, avoids the blade to be damaged by the collision.

Referring to fig. 4 and 5, in the present embodiment, the shaft lock mechanism 4 includes a lock shaft 41 and an elastic member 43, the lock shaft 41 passes through the sliding hole 21 and can slide in the sliding hole 21, and opposite ends of the elastic member 43 are respectively connected to the tool holder 2 and the lock shaft 41, specifically: one end of the locking shaft 41 passes through the sliding holes 21 on the outer guard plate 25 and the inner lining plate 26 of the first tool holder 22, and the other end of the locking shaft 41 passes through the sliding holes 21 on the outer guard plate 25 and the inner lining plate 26 of the second tool holder 23; in order to prevent the locking shaft 41 from being separated from the sliding hole 21, the opposite ends of the locking shaft 41 are further provided with limiting flanges 413 in a protruding manner, and the limiting flanges 413 are positioned between the outer guard plate 25 and the inner lining plate 26; the number of the elastic pieces 43 is two, and the two elastic pieces 43 are both positioned in the tool holder 2, wherein one elastic piece 43 is positioned between the outer guard 25 and the inner lining 26 of the first tool holder 22, and the other elastic piece 43 is positioned between the outer guard 25 and the inner lining 26 of the second tool holder 23; the elastic member 43 is an omega spring, wherein two opposite ends of one omega spring are connected to the locking shaft 41 and the inner lining plate 26 of the first handle 22, respectively, and two opposite ends of the other omega spring are connected to the locking shaft 41 and the inner lining plate 26 of the second handle 23, respectively.

The blade 3 is located in a blade receiving space formed by the first holder 22 and the second holder 23, and a blade root of the blade 3 is connected to the first holder 22 and the second holder 23 through a rotating shaft, specifically, in the present embodiment, the blade 3 is located between the inner lining 26 of the first holder 22 and the inner lining 26 of the second holder 23, and one end of the blade 3 is rotatably connected to the outer guard 25 and the inner lining 26 of the first holder 22 and the outer guard 25 and the inner lining 26 of the second holder 23 through a rotating shaft. Referring to fig. 6, the edge of the blade root of the blade 3 is recessed with a first retaining groove 31 and a second retaining groove 33 at intervals, the first retaining groove 31 and the edge of the blade 3 are located on the same side, and the second retaining groove 33 is located on the side of the blade 3 opposite to the blade tip. The first and

second detent grooves

31, 33 are each adapted to cooperate with the locking shaft 41 of the shaft lock mechanism 4 to lock the blade 3. The edge of the blade root of the blade 3 is further provided with a pushing and abutting part 34, and the pushing and abutting part 34 is located at the back of the blade 3 and at one end of the blade 3 far away from the blade tip. Referring to fig. 7 and 8, when the blade 3 is in the closed state, the locking shaft 41 of the shaft lock mechanism 4 is engaged with the first locking groove 31, and the pushing portion 34 protrudes out of the end of the tool holder 2 opposite to the tool tip. The pushing portion 34 is capable of rotating the blade 3 when being stressed, so as to allow the locking shaft 41 of the shaft lock mechanism 4 to be disengaged from the first detent groove 31, and to allow the locking shaft 41 to be engaged with the second detent groove 33, so as to position the blade 3 in the open state (fig. 11).

In the present embodiment, the side of the pushing portion 34 facing away from the blade is provided with an anti-slip tooth 341. The edge of the blade root of the blade 3 is further concavely provided with a pushing groove 35, and the pushing groove 35 is positioned on one side of the pushing part 34 close to the blade tip. The anti-slip teeth 341 can increase friction and have an anti-slip effect, and by providing the pushing grooves 35, a user can apply force to the pushing portion 34, so that the user can push the pushing portion 34 more conveniently. In the present embodiment, the blade body of the blade 3 further has an open blade groove 36 extending therethrough, and the open blade groove 36 is located on the blade 3 side closer to the blade back.

Referring to fig. 6 again, in the present embodiment, the first clamping groove 31 is formed by enclosing a connection surface 311, a closed locking surface 313, an arc-shaped transition surface 314 and a positioning fillet 315, which are connected in sequence, wherein the connection surface 311 is opposite to the arc-shaped transition surface 314 and is closer to the knife tip than the arc-shaped transition surface 314; the positioning rounded corner 315 protrudes in a direction towards the connection face 311. When the blade 3 is in the closed state, the locking shaft 41 contacts the positioning round corner 315 and the closing locking surface 313 to prevent the blade 3 in the closed state from being accidentally opened by its own weight.

In the present embodiment, the second locking groove 33 is a C-shaped groove surrounded by two open locking surfaces 331 and a circular arc transition surface 334, the two open locking surfaces 331 are disposed opposite to each other, and the circular arc transition surface 334 connects the two open locking surfaces 331. When the blade 3 is in the open state, the lock shaft 41 contacts with both open lock surfaces 331 to prevent the blade 3 from being accidentally rotated when cutting an object.

Referring to fig. 5 again, in the present embodiment, the side surfaces of the two outer guards 25 facing the blade 3 are also concavely provided with guide grooves 27; the blade 3 is provided with a limit nail 37, and two opposite ends of the limit nail 37 are respectively accommodated in the guide grooves 27 of the two outer guard plates 25 in a sliding manner so as to guide the rotation of the blade 3.

Referring to fig. 1 again, in the present embodiment, the shaft lock quick opening mechanism 100 further includes a clip 5, and the clip 5 is installed on an outer sidewall of the outer guard 25 of the second handle 23. The shaft lock quick opening mechanism 100 can be conveniently carried on the user by the clip 5.

When the knife is opened by one hand, the pushing part 34 is quickly pushed by the thumb, the blade 3 is forced to rotate relative to the knife handle 2, the locking shaft 41 is separated from the first clamping groove 31, the blade 3 is switched to the unlocking half-open state shown in fig. 10 from the closed locking state shown in fig. 8, then the blade 3 continues to rotate under the action of inertia until the blade is in the fully open state shown in fig. 11, at this time, the locking shaft 41 is clamped with the second clamping groove 33, and the blade 3 is in the opening locking state.

When the shaft lock quick opening mechanism 100 is used for one-hand opening, a thumb can be separated from the blade 3 after quickly pushing the pushing part 34 without being always in contact with the blade, so that the thumb can be prevented from being cut by the blade when the quick opening mode of one-hand opening is used.

In the shaft lock quick knife opening mechanism 100, the knife body of the blade 3 is further provided with the knife opening groove 36 in a penetrating manner, so that the shaft lock quick knife opening mechanism 100 has two knife opening manners of realizing knife opening by pushing the pushing and supporting part 34 in the embodiment and realizing knife opening by pushing the knife opening groove 36 in the prior art, and a user can select the knife opening manner as required.

It is understood that the structure of the shaft lock mechanism 4 is not limited to the embodiment, and other shaft lock mechanisms in the prior art may be adopted as required, for example, the elastic member 43 of the shaft lock mechanism 4 is not limited to the omega spring, but a coil spring or an elastic arm may be adopted, and the lock shaft 41 may be replaced by a steel ball.

It will be appreciated that the spacer 24 may be omitted, in which case the holder 2 forms the insert receiving space by the first and

second shanks

22, 23 being connected to each other.

It will be appreciated that the clip 5 may also be provided on the outer wall of the outer guard 25 of the first blade shank 22.

It can be understood that the shaft lock quick opening mechanism 100 of the embodiment of the present invention can achieve the effects described in the above embodiments as long as the shaft lock quick opening mechanism 100 has the aforementioned elements, however, the manufacturer can additionally add other elements according to the actual requirements to keep the beauty and stability of the shaft lock quick opening mechanism 100, or change the shapes and structures of the elements such as the handle 2 and the blade 3 …, not only limited to the pattern drawn in the drawings of the embodiment of the present invention.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. The utility model provides a quick mechanism of opening a knife (100) of shaft lock which characterized in that: the novel knife handle comprises a knife handle (2), a blade (3) and a shaft locking mechanism (4), wherein the blade (3) is rotatably arranged on the knife handle (2), a first clamping groove (31) and a second clamping groove (33) are concavely arranged at intervals on the periphery of the blade root of the blade (3), the first clamping groove (31) and the cutting edge of the blade (3) are positioned on the same side, the second clamping groove (33) is positioned on one side of the blade (3) back to the knife tip, a pushing part (34) is further arranged on the periphery of the blade root of the blade (3), the pushing part (34) is positioned at the knife back of the blade (3), the shaft locking mechanism (4) is arranged on the knife handle (2), when the blade (3) is positioned at a closed position, the shaft locking mechanism (4) is clamped with the first clamping groove (31), and the pushing part (34) protrudes out of one end of the blade handle (2) back to the knife tip, the blade (3) can be rotated when the pushing and supporting part (34) is stressed, so that the shaft lock mechanism (4) is allowed to be separated from the first clamping groove (31) to be clamped, the shaft lock mechanism (4) is clamped with the second clamping groove (33), and the blade (3) is positioned at an opening position.

2. The shaft lock quick opening mechanism (100) of claim 1, further comprising: the side surface of the pushing part (34) back to the blade is provided with anti-skidding teeth (341).

3. The shaft lock quick opening mechanism (100) of claim 1, further comprising: the blade root periphery of the blade (3) is further concavely provided with a pushing groove (35), and the pushing groove (35) is located on one side, close to the blade tip, of the pushing part (34).

4. The shaft lock quick opening mechanism (100) of claim 1, further comprising: the knife body of the blade (3) is also provided with a knife opening groove (36) in a penetrating way, and the knife opening groove (36) is close to the knife back of the blade (3).

5. The shaft lock quick opening mechanism (100) of claim 1, further comprising: be equipped with slide opening (21) on handle of a knife (2), shaft lock mechanism (4) are including locking axle (41) and elastic component (43), locking axle (41) pass slide opening (21) can slide in slide opening (21), locking axle (41) can alternatively with first screens groove (31) reach second screens groove (33) joint, the relative both ends of elastic component (43) respectively with handle of a knife (2) reach locking axle (41) are connected.

6. The shaft lock quick opening mechanism (100) of claim 5, further comprising: first screens groove (31) surround through the connection face (311), closed locking face (313), arc transition face (314) that connect gradually and location fillet (315) and form, connect face (311) with arc transition face (314) are relative, and compare arc transition face (314) are close to the knife tip, location fillet (315) are along the orientation the direction of connecting face (311) is protruding to be stretched, when blade (3) are in the closed position, locking axle (41) with location fillet (315) reach closed locking face (313) contact.

7. The shaft lock quick opening mechanism (100) of claim 5, further comprising: second screens groove (33) are for enclosing the C-shaped groove that forms through two opening locking surface (331) and an circular arc transition surface (334), and two are opened locking surface (331) and are set up relatively, circular arc transition surface (334) are connected two and are opened locking surface (331), when blade (3) are in the open position, locking axle (41) and two are opened locking surface (331) and are contacted.

8. The shaft lock quick opening mechanism (100) of claim 5, further comprising: the elastic piece (43) is an omega spring, and the elastic piece (43) is contained in the knife handle (2).

9. The shaft lock quick opening mechanism (100) of claim 1, further comprising: the inner side of the knife handle (2) is concavely provided with a guide groove (27), the blade (3) is provided with a limit nail (37), and the end part of the limit nail (37) is slidingly accommodated in the guide groove (27) so as to guide the rotation of the blade (3).

10. The shaft lock quick opening mechanism (100) of claim 1, further comprising: the shaft lock quick opening mechanism (100) further comprises a clamping buckle (5), and the clamping buckle (5) is arranged on the outer side wall of the knife handle (2).