Hidden type quick-opening folding knife

Abstract

The utility model is applicable to the technical field of cutting tools, and provides a concealed quick-opening folding knife, which comprises a knife handle and a blade, the middle of the knife handle is provided with an accommodating groove, the blade is rotatably arranged in the accommodating groove, the blade is provided with a shifting part, and when the folding knife is in a storage state, the shifting part can be shifted by the shifting part. The edge of the shifting part is flush with the edge of the knife handle, the blade can be opened or closed by applying external force to the shifting part, a notch is formed in one side of the shifting part, the folding knife can be prevented from being opened by mistaken touch so that the personal safety of a carrier can be guaranteed, and when a user opens the folding knife, the finger can abut against the notch and shift the shifting part, so that the folding knife is convenient to use. And the operation is more labor-saving.

Description

Technical Field

[0001] This utility model belongs to the technical field of cutting tools, and in particular relates to a concealed quick-opening folding knife. Background Technology

[0002] Folding knives are widely used in daily life, outdoors, and special scenarios due to their portability and multifunctionality.

[0003] For example, Chinese utility model patent with publication number CN222371663U, entitled "A Folding Knife," includes a blade and a handle. The rear end of the blade is pivotally connected to the front end of the handle. The handle has a storage groove for storing the blade. The handle includes a first handle and a second handle. The front end of the first handle is pivotally connected to the center of the rear end of the blade via a first connecting pin. The front end of the second handle is pivotally connected to the rear end of the blade near its rear edge via a second connecting pin. The rear end of the first handle is connected to the rear end of the second handle via a connecting rod. One end of the connecting rod is pivotally connected to the rear end of the first handle via a third connecting pin, and the other end of the connecting rod is pivotally connected to the rear end of the second handle via a fourth connecting pin. When the first handle moves relative to the second handle, the blade can rotate relative to the handle between a first position where it is folded into the storage groove and a second position where it is fully unfolded.

[0004] Although the blade in this patent opens and closes relatively smoothly without sudden or rapid opening, the blade's lever protrudes outside the storage slot. When carrying the blade, it is easy to accidentally touch the lever and open the folding knife, posing a safety hazard of scratching the user. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a concealed quick-opening folding knife. This folding knife can avoid accidental opening to ensure the personal safety of the carrier. When opening the folding knife, the user can place their finger against the notch and then turn the lever of the blade to open the folding knife, which is easier to operate and saves effort.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A concealed quick-opening folding knife includes a handle and a blade. The handle has a receiving groove in the middle, and the blade is rotatably disposed in the receiving groove. The blade has a toggle part. When the folding knife is in the retracted state, the edge of the toggle part is flush with the edge of the handle. The blade can be opened or closed by applying external force to the toggle part. A notch is provided on one side of the toggle part.

[0008] Furthermore, the tool holder includes a liner assembly, a housing, and a first connector. The housing is connected to the outside of the liner assembly via the first connector, and the receiving groove is located in the middle of the liner assembly.

[0009] Furthermore, the blade is provided with a groove adjacent to the actuating part, and a gasket is provided in the groove, the gasket being located between the groove and the liner assembly.

[0010] Furthermore, the first connector includes a flat-headed swivel and a flat-headed nail. The flat-headed swivel is located on one side of the handle, and the flat-headed nail is located on the other side of the handle. The flat-headed swivel passes through the outer shell, the liner assembly, and the blade and is fixedly connected to the flat-headed nail.

[0011] Furthermore, the interior of the flat-headed rotating shaft is hollow and the inner wall is threaded, and the flat-headed nail is adapted to the thread.

[0012] Furthermore, the liner assembly includes a first liner, a second liner, and a separator block disposed between the first liner and the second liner.

[0013] Furthermore, both the first and second liner are provided with a third and a fourth locking position, the blade is provided with a fourth connecting hole, and a limiting post is provided in the fourth connecting hole. The limiting post can move on an arc track between the third and fourth locking positions.

[0014] Furthermore, the folding knife includes a shaft locking assembly, which includes a locking shaft and a first elastic element. The first liner and the second liner are provided with clearance holes. The locking shaft passes through the first liner and the second liner along the clearance holes. The two ends of the first elastic element are respectively connected to the locking shaft and the liner assembly. A first locking position is provided on one side of the notch, and a guide groove extends from the other side. A second locking position is provided at the end of the guide groove away from the notch.

[0015] Furthermore, the folding knife includes a shaft lock assembly, which includes a button shaft lock. The button shaft lock includes a button and a second elastic element. The button includes a pressing part, a connecting part, and a limiting part connected in sequence. The diameter of the connecting part is smaller than the diameter of the pressing part. The second elastic element is disposed between the second liner and the outer shell, and the pressing part is disposed between the first liner and the outer shell.

[0016] Furthermore, the folding knife is provided with a rope hole and a clip.

[0017] The beneficial effects of this utility model are:

[0018] This utility model provides a concealed quick-opening folding knife. The actuating part of the folding knife is hidden in the receiving groove of the handle, which can prevent accidental opening and ensure the personal safety of the carrier. In addition, a notch is provided on the actuating part. When opening the folding knife, the user can put his finger against the notch and then turn the actuating part of the blade to open the folding knife, which is easier to operate and saves effort. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the folding knife in the closed state according to Embodiment 1 of this utility model;

[0020] Figure 2 This is an exploded view of the folding knife in Embodiment 1 of this utility model;

[0021] Figure 3 This is a partial structural schematic diagram of the folding knife in Embodiment 1 of this utility model;

[0022] Figure 4 This is a schematic diagram of the blade structure in Embodiment 1 of this utility model;

[0023] Figure 5 This is an exploded view of the liner assembly and blade in Embodiment 1 of this utility model;

[0024] Figure 6 This is a schematic diagram of the folding knife in the open state according to Embodiment 1 of this utility model;

[0025] Figure 7 This is a schematic diagram of a portion of the folding knife in the open state according to Embodiment 1 of this utility model;

[0026] Figure 8 This is a schematic diagram of the folding knife in the closed state according to Embodiment 2 of this utility model;

[0027] Figure 9 This is a schematic diagram of the folding knife in the open state according to Embodiment 2 of this utility model;

[0028] Figure 10 This is an exploded view of the blade and shaft lock structure in Embodiment 2 of this utility model;

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Knife handle; 11. Receiving groove; 12. Rope threading hole; 13. Clamp; 14. Liner assembly; 141. First liner; 1411. First connecting hole; 1412. Second connecting hole; 1413. Third connecting hole; 142. Second liner; 143. Clearance hole; 144. Third locking position; 145. Fourth locking position; 146. Divider block; 15. Housing; 16. First connector; 161. Flat-head swivel; 162. Flat-head pin; 17. Second connector; 18. Pin;

[0031] 2. Blade; 21. Blade tip; 22. Actuating part; 221. Notch; 222. First locking position; 223. Guide groove; 224. Second locking position; 225. Groove; 226. Washer; 227. Mounting hole; 228. Limiting post; 2281. Fourth connecting hole; 229. Anti-slip teeth;

[0032] 3. Shaft lock assembly; 31. Locking shaft; 32. First elastic element;

[0033] 4. Button shaft lock; 41. Button; 411. Pressing part; 412. Connecting part; 413. Restricting part; 42. Second elastic element. Detailed Implementation

[0034] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0035] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0036] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In some descriptions of utility models, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] Example 1

[0039] Reference Figures 1 to 7 This embodiment provides a concealed quick-opening folding knife, including a handle 1 and a blade 2. The handle 1 has a receiving groove 11 in the middle, and the blade 2 is rotatably disposed in the receiving groove 11. The blade 2 has a toggle part 22. When the folding knife is in the retracted state, the edge of the toggle part 22 is flush with the edge of the handle 1. The blade 2 is opened or closed by applying external force to the toggle part 22. A notch 221 is provided on one side of the toggle part 22.

[0040] The blade 2 has a blade tip 21 at the end away from the actuating part 22. By designing a notch 221 on the side of the actuating part 22, the user can place their finger against the notch 221 and actuate the actuating part 22 when opening the folding knife, making the operation easier. At the same time, the actuating part 22 is hidden in the receiving groove 11 of the handle 1, which can prevent accidental opening and ensure the personal safety of the carrier.

[0041] Preferably, the handle 1 includes a liner assembly 14, a housing 15, and a first connector 16. The housing 15 is connected to the outside of the liner assembly 14 through the first connector 16, and the receiving groove 11 is provided in the middle of the liner assembly 14.

[0042] The first connector 16 includes a flat-headed pivot 161 and a flat-headed pin 162. The flat-headed pivot 161 is located on one side of the handle 1, and the flat-headed pin 162 is located on the other side of the handle 1. The flat-headed pivot 161 passes through the housing 15, the liner assembly 14 and the blade 2 and is fixedly connected to the flat-headed pin 162.

[0043] Understandably, the smooth outer surface of the flat-headed shaft 161 that contacts the blade 2 allows the blade 2 to rotate flexibly and stably using it as a fulcrum, thereby enabling the function of opening or closing the blade 2. The interior of the flat-headed shaft 161 is hollow and has threads on its inner wall. The flat-headed pin 162 is adapted to the threads to connect the flat-headed pin 162 to the flat-headed shaft 161, thereby fixing the outer shell 15 to the outside of the liner assembly 14.

[0044] Furthermore, the liner assembly 14 includes a first liner 141, a second liner 142, and a separator block 146. The separator block 146 is disposed between the first liner 141 and the second liner 142 to separate the first liner 141 and the second liner 142 to form a receiving groove 11. Specifically, the liner assembly 14 also includes a second connector 17, which sequentially passes through the housing 15, the first liner 141, the separator block 146, the second liner 142, and the housing 15 before locking. The separator block 146 is located at one end of the liner assembly 14. The second connector 17 has the same structure as the first connector 16, and will not be described in detail here.

[0045] The first connector 16 and the second connector 17 are used to connect the two ends of the first liner 141 and the second liner 142 together. To ensure the stability of the connection, the first liner 141 and the second liner 142 are also fixedly connected by a pin 18. The first liner 141 is provided with a first connecting hole 1411 for the flat-head rotating shaft 161 to pass through, a second connecting hole 1412 for the pin 18 to pass through, and a third connecting hole 1413 for the second connector 17 to pass through. The second liner 142 has the same structure as the first liner 141 and will not be described in detail.

[0046] Furthermore, the blade 2 is provided with a groove 225, which is adjacent to the actuating part 22. A shim 226 is provided in the groove 225, and the shim 226 is located between the groove 225 and the liner assembly 14. By providing the shim 226, the friction between the blade 2 and the liner assembly 14 can be reduced, avoiding wear on the blade 2 and extending the service life of the blade 2.

[0047] Furthermore, a mounting hole 227 is provided in the middle of the groove 225, and the flat-headed rotating shaft 161 passes through the gasket 226 and the mounting hole 227 and is fixedly connected to the flat-headed nail 162.

[0048] Preferably, the folding knife includes a shaft lock assembly 3, which includes a locking shaft 31 and a first elastic member 32. The first liner 141 and the second liner 142 are provided with clearance holes 143. The locking shaft 31 passes through the first liner 141 and the second liner 142 along the clearance holes 143. The two ends of the first elastic member 32 are respectively connected to the locking shaft 31 and the liner assembly 14. A first locking position 222 is provided on one side of the notch 221, and a guide groove 223 extends from the other side. A second locking position 224 is provided at the end of the guide groove 223 away from the notch 221.

[0049] When the blade 2 is in the closed state, the shaft locking assembly 3 is located in the second locking position 224. When an external force is applied to the actuating part 22 to open the blade 2, the blade 2 and the locking shaft 31 move relative to each other. With the blade 2 as a reference, the locking shaft 31 disengages from the second locking position 224 and slides along the guide groove 223 until it reaches the first locking position 222, at which point the blade 2 is fully opened. The locking shaft 31 can slide in the clearance hole 143, allowing it to slide out from both the first locking position 222 and the second locking position 224. Under the action of the first elastic member 32, the locking shaft 31 can be driven to slide along the guide groove 223 to facilitate the opening and closing of the blade 2.

[0050] Preferably, the first liner 141 and the second liner 142 are each provided with a third locking position 144 and a fourth locking position 145, the blade 2 is provided with a fourth connecting hole 2281, and a limiting post 228 is provided in the fourth connecting hole 2281. The limiting post 228 can move on the arc track between the third locking position 144 and the fourth locking position 145.

[0051] It is understandable that when the limiting post 228 abuts against the third locking position 144, the blade 2 is in a fully open state, and when the limiting post 228 abuts against the fourth locking position 145, the blade 2 is in a fully closed state.

[0052] Preferably, the outer surface of the actuating part 22 is provided with anti-slip teeth 229. Without the anti-slip teeth 229, the user's hand may slip during the opening of the folding knife, causing the user's fingers to touch the blade 2 and resulting in injury. The anti-slip teeth 229 allow the user to accurately operate the opening and closing of the folding knife and avoid being cut by the blade 2.

[0053] Preferably, the folding knife is provided with a lanyard hole 12 and a clip 13 to facilitate the user's carrying of the folding knife. The lanyard hole 12 and the clip 13 are conventional designs for those skilled in the art and will not be described in detail here.

[0054] Example 2

[0055] Reference Figures 8 to 10 The difference between this embodiment and embodiment one is that the shaft lock assembly 3 includes a button shaft lock 4.

[0056] Specifically, the button shaft lock 4 includes a button 41 and a second elastic member 42. The button 41 includes a pressing part 411, a connecting part 412 and a limiting part 413 connected in sequence. The diameter of the connecting part 412 is smaller than the diameter of the pressing part 411. The second elastic member 42 is disposed between the second liner 142 and the outer shell 15. The pressing part 411 is disposed between the first liner 141 and the outer shell 15.

[0057] When the folding knife is closed, the limiting part 413 is located in the first locking position 222 of the blade 2, which can limit the movement of the blade 2. When an external force is applied to the pressing part 411, the external force can compress the second elastic member 42, causing the button 41 to move in the direction of the elastic member. The connecting part 412 in the button 41 moves into the first locking position 222 of the blade 2. At this time, the blade 2 is in a movable state and can switch between open and closed.

[0058] The remaining advantages and features of this embodiment are the same as those of Embodiment 1.

[0059] It is understood that those skilled in the art can combine various implementation methods in the above embodiments under the guidance of the above examples to obtain technical solutions with multiple implementation methods.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concealed quick-opening folding knife, characterized in that, The folding knife includes a handle and a blade. The handle has a receiving groove in the middle, and the blade is rotatably disposed in the receiving groove. The blade has a toggle part. When the folding knife is in the stored state, the edge of the toggle part is flush with the edge of the handle. The blade can be opened or closed by applying external force to the toggle part. A notch is provided on one side of the toggle part.

2. The covert quick-open folding knife of claim 1, wherein, The tool holder includes a liner assembly, a housing, and a first connector. The housing is connected to the outside of the liner assembly via the first connector, and the receiving groove is located in the middle of the liner assembly.

3. The covert quick-open folding knife of claim 2, wherein, The blade is provided with a groove, the groove is adjacent to the actuating part, and a gasket is provided in the groove, the gasket being located between the groove and the liner assembly.

4. The concealed quick-opening folding knife as described in claim 2, characterized in that, The first connector includes a flat-headed swivel and a flat-headed pin. The flat-headed swivel is located on one side of the handle, and the flat-headed pin is located on the other side of the handle. The flat-headed swivel passes through the outer shell, the liner assembly, and the blade and is fixedly connected to the flat-headed pin.

5. The concealed quick-opening folding knife as described in claim 4, characterized in that, The interior of the flat-headed rotating shaft is hollow and the inner wall is threaded, and the flat-headed nail is adapted to the thread.

6. The covert quick-open folding knife of claim 2, wherein, The liner assembly includes a first liner, a second liner, and a separator block disposed between the first liner and the second liner.

7. The covert quick-open folding knife of claim 6, wherein, Both the first and second liner plates are provided with a third and a fourth locking position. The blade is provided with a fourth connecting hole. A limiting post is provided in the fourth connecting hole. The limiting post can move on an arc track between the third and fourth locking positions.

8. The covert quick-open folding knife of claim 6, wherein, The folding knife includes a shaft locking assembly, which includes a locking shaft and a first elastic element. The first liner and the second liner are provided with clearance holes. The locking shaft passes through the first liner and the second liner along the clearance holes. The two ends of the first elastic element are respectively connected to the locking shaft and the liner assembly. A first locking position is provided on one side of the notch, and a guide groove extends from the other side. A second locking position is provided at the end of the guide groove away from the notch.

9. The covert quick-open folding knife of claim 6, wherein, The folding knife includes a shaft lock assembly, which includes a button shaft lock. The button shaft lock includes a button and a second elastic element. The button includes a pressing part, a connecting part, and a limiting part connected in sequence. The diameter of the connecting part is smaller than the diameter of the pressing part. The second elastic element is disposed between the second liner and the outer shell. The pressing part is disposed between the first liner and the outer shell.

10. The concealed quick-opening folding knife as described in claim 1, characterized in that, The folding knife is equipped with a rope hole and a clip.

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