CN218428449U

CN218428449U - Shaft lock folding knife

Info

Publication number: CN218428449U
Application number: CN202221624993.6U
Authority: CN
Inventors: 周鸿锋; 麦荣佐
Original assignee: Guangdong Tuobituo Technology Co ltd
Current assignee: Guangdong Tuobituo Technology Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2023-02-03
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a shaft lock folding knife, which comprises a knife handle, a blade, a main shaft, a locking shaft and an elastic part; the knife handle is provided with a guide groove arranged along the length direction of the knife handle and at least two connecting parts arranged one by one along the length direction of the knife handle; the blade is rotatably arranged on the knife handle through the main shaft and has an opening state and a folding state; the locking shaft can be transversely movably arranged in the guide groove and is used for locking the blade in an opening state or a folding state; the elastic piece is used for providing the driving force for the locking shaft to move forwards relative to the tool holder and enable the locking shaft to lock the blade, the first end of the elastic piece is connected with the locking shaft, and the second end of the elastic piece can be connected with any connecting part to enable the elastic piece to have different driving forces. The unlocking force adjusting device is simple and practical in structure, and can be used for adaptively adjusting the unlocking force of the locking shaft according to user groups with different forces, so that the situation that the locking shaft is difficult to unlock or cannot be unlocked due to the fact that the user group forces are too small can be avoided.

Description

Shaft lock folding knife

Technical Field

The utility model relates to a roll over sword technical field, especially relate to a sword is rolled over to shaft lock.

Background

At present, the epaxial lock folding knife on market mainly includes the handle of a knife, the blade, the main shaft, locking shaft and elastic component, the blade passes through the main shaft and is rotatable to be located on the handle of a knife, the blade has open mode and the state of converting into, but locking shaft lateral shifting's the locating on the handle of a knife, the locking shaft is used for locking the blade at open mode or the state of converting into, the one end and the handle of a knife of elastic component are connected, the other end and locking shaft are connected, the elastic component is used for the relative handle of a knife of drive locking shaft to move forward, so that locking shaft top tight blade, move backward through the relative handle of a knife of drive locking shaft and can unblock the blade.

However, since the locking force of the locking shaft on the blade is fixed, and correspondingly, the unlocking force of the locking shaft is also fixed, the shaft locking folding knife cannot be suitable for user groups with different forces.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an axle lock folding knife can carry out adaptability adjustment to the unlocking force of a locking shaft according to the user group of different strength, thereby avoiding the situation that the locking shaft is difficult to or can not be unlocked due to undersize of the user group strength.

The purpose of the utility model is realized by adopting the following technical scheme:

the shaft locking folding knife comprises a knife handle, a blade, a main shaft, a locking shaft and an elastic piece;

the knife handle is provided with a guide groove arranged along the length direction of the knife handle and at least two connecting parts arranged one by one along the length direction of the knife handle;

the blade is rotatably arranged on the cutter handle through the main shaft and has an opening state and a folding state;

the locking shaft is transversely movably arranged in the guide groove and is used for locking the blade in the opening state or the folding state;

the elastic piece is used for providing driving force for the locking shaft to move forwards relative to the tool handle and enable the locking shaft to lock the blade, the first end of the elastic piece is connected with the locking shaft, and the second end of the elastic piece can be connected with any one of the connecting parts to enable the elastic piece to have different driving forces.

Further, the connecting part is a hole or a groove.

Furthermore, the two sides of the tool shank in the thickness direction are respectively provided with the elastic piece and a group of connecting parts, and each group of connecting parts comprises at least two connecting parts;

the first ends of the elastic pieces are connected with the two ends of the locking shaft in a one-to-one correspondence mode, and the second ends of the elastic pieces are connected with any one of the connecting portions in the groups in a one-to-one correspondence mode.

Further, the blade is provided with a locking portion which abuts against the locking shaft when the blade is in the open state.

Further, the blade is also provided with a slope inclined upwards towards the blade along the transverse direction when the blade is in the opening state, and the locking part is arranged on the slope.

Further, the blade is also provided with a locking groove which is matched with the locking shaft when the blade is in a folded state.

Furthermore, a stop shaft is further arranged on the knife handle, a stop part is arranged on the blade, and the stop shaft is matched with the stop part when the blade is in an open state to prevent the blade from moving upwards.

Further, the stop part is a groove matched with the stop shaft.

Further, the locking shaft has a circular cross-section.

Further, the elastic piece is an omega spring.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a jack-knife is locked to axle connects and makes the elastic component have different drive power through the second end that makes the elastic component and arbitrary connecting portion are connected to make the locking axle have different locking power, therefore can make the locking axle have different unblock power, this simple structure is practical, can carry out adaptability according to the user group of different strength and to the unblock power of locking axle and adjust, therefore can avoid being difficult to or can't carry out the condition of unblock to the locking axle because of user group strength undersize.

Drawings

Fig. 1 is a schematic structural view of the shaft lock folding knife of the present invention in an open state;

fig. 2 is a schematic view of the internal structure of the shaft lock folding knife of the present invention in an open state;

fig. 3 is a partially exploded view of the shaft lock folding knife of the present invention in an open state;

fig. 4 is an exploded view of the shaft lock folding knife of the present invention in an open state;

fig. 5 is a schematic structural view of the shaft lock folding knife of the present invention in a folded state;

fig. 6 is a partially exploded view of the shaft lock folding knife of the present invention in a folded state;

fig. 7 is a schematic structural view of a blade in the shaft lock folding knife of the present invention.

In the figure: 10. a knife handle; 11. a guide groove; 12. a connecting portion; 13. an inner handle; 14. an outer handle; 20. a blade; 21. a bevel; 22. a locking groove; 23. a groove; 30. a main shaft; 40. a locking shaft; 50. an elastic member; 60. a stop shaft; 70. connecting nails; 80. a bearing; 90. clamping; 100. and operating the nail.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Referring to fig. 1 to 6, a shaft lock folding knife according to a preferred embodiment of the present invention is shown, which includes a knife handle 10, a blade 20, a main shaft 30, a locking shaft 40, and an elastic member 50; the cutter handle 10 is provided with a guide groove 11 arranged along the length direction of the cutter handle and at least two connecting parts 12 arranged one by one along the length direction of the cutter handle; the blade 20 is rotatably arranged on the tool holder 10 through the main shaft 30, and the blade 20 has an opening state and a folding state; a locking shaft 40 is transversely movably disposed in the guide groove 11, the locking shaft 40 being used for locking the blade 20 in the opened state or the folded state; the elastic member 50 is used for providing a driving force for the locking shaft 40 to move forward relative to the tool holder 10 and for the locking shaft 40 to lock the blade 20, a first end of the elastic member 50 is connected with the locking shaft 40, and a second end of the elastic member 50 can be connected with any one of the connecting portions 12 so that the elastic member 50 has different driving forces.

The utility model discloses a sword is rolled over to axle lock connects and makes elastic component 50 have different drive power through the second end that makes elastic component 50 and arbitrary connecting portion 12 to make locking axle 40 have different locking power, therefore can make locking axle 40 have different unlocking power, this simple structure is practical, can carry out the adaptability to locking axle 40's unlocking power according to the user group of different strength and adjust, therefore can avoid being difficult to or can't carry out the condition of unblock to locking axle 40 because of user group strength undersize.

Specifically, in the present embodiment, a plurality of connection portions 12 are provided, and the connection portions 12 are provided at intervals, but in other embodiments, two connection portions 12 may be provided.

In this embodiment, the connecting portion 12 is a hole or a groove, so that the second end of the elastic member 50 is inserted into the connecting portion 12 to complete the connection therebetween, and the second end of the elastic member 50 is pulled out to release the connection therebetween, so that the assembly and disassembly are convenient and efficient.

In other embodiments, the connecting portion 12 may be a connecting column, and the second end of the elastic element 50 is wound around the connecting portion 12 to complete the connection between the two.

Referring to fig. 4, in the present embodiment, two sides of the tool shank 10 along the thickness direction thereof are provided with an elastic member 50 and a set of connecting portions 12, and each set of connecting portions 12 includes at least two connecting portions 12; the first ends of the elastic members 50 are connected to the respective ends of the locking shaft 40 in a one-to-one correspondence, and the second ends of the elastic members 50 are connected to any one of the connecting portions 12 of the respective sets of connecting portions 12 in a one-to-one correspondence. The use of two elastic members 50 can provide a uniform elastic force to the locking shaft 40, and at the same time, even if one of the elastic members 50 is damaged, the locking shaft 40 can still reliably lock the blade 20 under the action of the other elastic member 50, which is more secure.

Of course, in other embodiments, there may be one elastic member 50, but is not limited thereto.

In order to improve the locking reliability of the locking shaft 40, the elastic member 50 is an omega spring in the present embodiment, but the elastic member 50 may be a general spring in other embodiments.

Referring to fig. 3 and 7, in the present embodiment, the blade 20 is provided with a locking portion that abuts against the locking shaft 40 when the blade is in the open state, and the blade 20 is reliably maintained in the open state by the abutment of the locking portion against the locking shaft 40.

Referring to fig. 7, in order to automatically compensate for the wear of the locking portion or locking shaft 40, the blade 20 is further provided with a slant surface 21 which is inclined upward toward the blade 20 in a lateral direction when the blade is in an open state, and the locking portion is provided on the slant surface 21, so that when the locking portion or locking shaft 40 is worn, the locking shaft 40 is slightly moved forward along the slant surface 21 to counteract the wear, and the locking shaft 40 is still locked.

In the present embodiment, the cross section of the locking shaft 40 is circular, and the circular cross section of the locking shaft 40 can disperse the wear thereof at various angles, thereby preventing the wear from concentrating on the contact point.

Of course, in other embodiments, the cross-section of the locking shaft 40 may also be rectangular or polygonal, but is not limited thereto.

Referring to fig. 6 and 7, in this embodiment, the blade 20 is further provided with a locking groove 22 which is engaged with the locking shaft 40 when it is in the folded state, and the blade 20 is securely maintained in the folded state by the engagement of the locking shaft 40 and the locking groove 22.

In order to make the locking shaft 40 lock the blade 20 reliably when the blade 20 is in the open state, the handle 10 is further provided with a stop shaft 60, the blade 20 is provided with a stop part, and the stop shaft 60 cooperates with the stop part when the blade 20 is in the open state to prevent the blade 20 from moving upwards.

In the present embodiment, the stop portion is a groove 23 adapted to the stop shaft 60, and the stop shaft 60 is reliably limited by the groove 23, so that the blade 20 can be more reliably maintained in the open state.

Of course, in other embodiments, the stop portion may be a stop slope 21 or a stop straight surface, but is not limited thereto.

Referring to fig. 4, in the present embodiment, the tool holder 10 includes two inner handles 13 located in the middle thereof and two outer handles 14 partially located outside the two inner handles 13, the two inner handles 13 are spaced apart from each other to form a cavity for receiving the blade 20 in the folded state, the outer handles 14 are respectively and closely attached to the inner handles 13, the inner handles 13 and the outer handles 14 are connected together by connecting nails 70, the connecting portion 12 is located on the inner handles 13, and the elastic member 50 is located between the inner handles 13 and the outer handles 14.

In this embodiment, to reduce wear, a bearing 80 is provided between the insert 20 and each inner shank 13.

In this embodiment, in order to facilitate the opening or folding of the blade 20, the blade 20 is provided with an operating nail 100 for assisting the opening or folding of the blade 20.

In this embodiment, a clamp 90 for hanging an external article is provided on the outer side of the tool holder 10.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The shaft locking folding knife is characterized by comprising a knife handle, a blade, a main shaft, a locking shaft and an elastic part;

2. The shaft lock folding knife according to claim 1, wherein the connecting portion is a hole or a groove.

3. The shaft-locking folding knife according to claim 1, wherein the elastic member and a group of connecting parts are arranged on both sides of the knife handle in the thickness direction, and each group of connecting parts comprises at least two connecting parts;

4. The shaft lock folding knife according to claim 1, wherein the blade is provided with a locking portion which abuts against the locking shaft when the blade is in the open state.

5. The shaft lock folding knife according to claim 4, wherein a slant surface inclined upward in a lateral direction toward the blade when the blade is in the open state is further provided on the blade, and the locking portion is provided on the slant surface.

6. The shaft lock folding knife according to claim 1, wherein said blade is further provided with a locking groove which engages with said locking shaft when said blade is in a folded state.

7. The shaft locking folding knife according to claim 1, wherein the knife handle is further provided with a stop shaft, the blade is provided with a stop portion, and the stop shaft is matched with the stop portion when the blade is in the open state to prevent the blade from moving upwards.

8. The shaft lock folding knife of claim 7 wherein said stop is a groove that mates with said stop shaft.

9. The shaft lock folding knife according to claim 1, wherein the locking shaft is circular in cross section.

10. The shaft lock folding knife of claim 1, wherein said resilient member is an omega spring.