CN217072449U - Simple steel ball locking knife - Google Patents

Abstract

The utility model discloses a simple steel ball locking knife, which comprises a knife handle, a spacing piece, a knife body and steel balls, wherein the knife handle consists of two handle halves which are oppositely arranged; the spacing piece is arranged between the same ends of the two handle halves, one end of the cutter body is rotationally arranged on a gap between the other ends of the two handle halves through a rotating shaft, and the cutter body can swing between a closed position and an open position around the rotating shaft; the steel balls can be rotatably embedded on the inner side surface of one end of any handle half part far away from the spacing piece; an inclined slope is arranged on one side of the spacing piece close to the steel balls, and the slope of the inclined slope faces the other end of the two handle halves; the half handle part provided with the steel ball is arranged on the inclined slope surface, so that the outward side of the steel ball is always abutted against the side surface of the corresponding side of the cutter body; one end of the handle half part provided with the steel ball, which corresponds to the handle half part, can swing along the axis direction of the rotating shaft. The steel ball locking knife is simple in structure and convenient to install, and the locking structure does not affect the overall appearance.

Description

Simple steel ball locking knife

Technical Field

The utility model relates to a folding cutter technical field especially relates to a simple and easy steel ball locking knife.

Background

The handle of a traditional steel ball locking knife generally comprises two handle halves, and a fixed connection structure is arranged between the two handle halves, namely the handle halves are fastened through screws, so that a gap at any position between the two handle halves is basically fixed. Then, a metal elastic sheet is arranged on one half part of any handle, and the steel ball is pressed on the cutter body by the metal elastic sheet, so that the aim of elastic locking is fulfilled.

For example, patent CN201720220600.8 discloses a lock-free folding knife with an independent metal spring, in which the metal spring is designed to press against the steel ball, so that the purpose of elastic locking can be achieved, but the structure is relatively complex and the assembly difficulty is high.

In view of the above situation, a technical scheme for forming the elastic sheet at the opening of the knife handle is disclosed in a quick-opening folding knife in chinese patent CN201810469314.4, and the technical scheme integrates the metal elastic sheet and the half part of the handle into a whole, thereby reducing the number of parts and the assembly difficulty, and facilitating the later assembly. However, the technical scheme destroys the original strength of the handle half part, increases the processing difficulty and directly influences the appearance and the manufacturing cost of the handle half part.

Disclosure of Invention

The utility model discloses aim at solving one of the above-mentioned technical problem at least, provide a simple and easy steel ball locking knife, this steel ball locking knife simple structure, the manufacturing of being convenient for, and do not influence the appearance of handle of a knife.

In order to realize the purpose, the utility model discloses a technical scheme be:

a simple steel ball locking knife comprises

The knife handle consists of two handle halves which are arranged oppositely;

a spacer mounted between the same ends of the two handle halves to maintain a spaced apart arrangement between the two handle halves;

a cutter body, one end of which is rotatably installed on a gap between the other ends of the two handle halves through a rotating shaft, the cutter body being capable of swinging between a closed position and an open position around the rotating shaft; and

the steel ball is embedded on the inner side surface of one end of any handle half part far away from the spacing piece;

an inclined slope surface is arranged on one side of the spacing piece close to the steel balls, and the slope surface of the inclined slope surface faces to the other ends of the two handle halves; the handle half part provided with the steel ball is arranged on the inclined slope surface, so that the outward side of the steel ball is always abutted against the side surface of the corresponding side of the cutter body; one end, corresponding to the handle half part, provided with the steel ball can swing along the axis direction of the rotating shaft.

Furthermore, a metal sheet is arranged on the inner side surface of the handle half part arranged on the inclined slope surface, and the steel ball is embedded on the metal sheet.

Furthermore, the two handle half parts are fixedly connected with the spacing piece through handle screws, adjusting screws are arranged on the handle half parts provided with the steel balls, and the mounting positions of the adjusting screws are closer to the cutter body relative to the mounting positions of the handle screws; the adjusting screw movably penetrates through the handle half part and the spacing piece on the corresponding side and is connected with the handle half part on the other side, and the adjusting screw is used for adjusting the joint degree of the handle half part with the inclined slope surface, wherein the handle half part is provided with the steel ball, so that the pressing force of the steel ball on the cutter body can be adjusted.

Furthermore, the handle half part provided with the steel ball is movably connected with one end corresponding to the rotating shaft, and the other end of the rotating shaft and the other handle half part cannot rotate relatively.

Furthermore, a movement margin hole is formed in the handle half part provided with the steel ball, and one end, corresponding to the rotating shaft, of the rotating shaft movably penetrates through the movement margin hole.

Furthermore, the two ends of the rotating shaft are respectively provided with a flat head screw, and each flat head screw is used for limiting the handle half part on the corresponding side.

Further, the cutter body includes the cutting part and passes through the pivot is installed the rotation portion on the clearance between two handle halves with rotating, be provided with two locking positions on the rotation portion, the rotation portion can pass through the steel ball with arbitrary locking position cooperation is in with relative locking the handle of a knife is located open position or closed position.

Further, the non-installation the steel ball handle half one with be provided with first gasket between the cutter body, install the steel ball handle half one with be provided with the second gasket between the cutter body, the thickness of first gasket is greater than the thickness of second gasket, first gasket and second gasket homoenergetic rotate to be installed in the pivot.

Furthermore, a plurality of steel balls are uniformly arranged on the second gasket in a penetrating and rolling mode.

Furthermore, a pocket clamping piece is clamped on one end of the two handle halves close to the spacing piece.

The utility model has the advantages that:

the simple steel ball locking knife of the utility model comprises two handle halves which are oppositely arranged to form a knife handle; the two handle halves are separated by the spacing piece, wherein the inclined slope surface on the spacing piece can enable the handle halves provided with the steel balls to press to the side surface of the cutter body, the self inclined elastic force of the handle halves is converted into the pressing force of the steel balls, the integral structure of the handle halves is structurally not damaged, the appearance of the handle halves is attractive, and meanwhile, the strength of the whole handle halves is guaranteed. Meanwhile, the gap between the two handle halves is not fixed, so that when the cutter body and the steel ball are matched under different states, the handle halves provided with the steel ball can swing freely.

Drawings

The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings, in which:

fig. 1 is a first schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram ii according to an embodiment of the present invention;

FIG. 3 is an exploded view of an embodiment of the present invention;

fig. 4 is a partial schematic structural diagram of an embodiment of the present invention;

fig. 5 is a cross-sectional view of an embodiment of the invention;

fig. 6 is a schematic view of an installation structure of a spacer according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 there can be intervening components, and when a component is referred to as being "disposed in the middle," it is not just disposed in the middle, so long as it is not disposed at both ends, but rather is within the scope of the middle. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Referring to fig. 1 to 6, the present application provides a simple steel ball locking knife, which comprises a knife handle 100, a spacer 200, a knife body 300 and steel balls 400, wherein the knife handle 100 is composed of two handle halves 110 arranged oppositely; a spacer 200 is mounted between the same ends of the two handle halves 110 to maintain a spaced apart arrangement between the two handle halves 110; one end of the cutter body 300 is rotatably mounted on the gap between the other ends of the two handle halves 110 by a rotating shaft 310, and the cutter body 300 can swing between a closed position and an open position around the rotating shaft 310; the steel ball 400 can be rotatably embedded on the inner side surface of one end of any handle half part 110 far away from the spacing piece 200; an inclined slope surface 210 is arranged on one side of the spacing piece 200 close to the steel ball 400, and the slope surface of the inclined slope surface 210 faces to the other ends of the two handle half parts 110; the handle half part 110 provided with the steel ball 400 is arranged on the inclined slope surface 210, so that the outward side of the steel ball 400 is always abutted against the side surface of the corresponding side of the cutter body 300; the end of the handle half 110, to which the steel ball 400 is attached, can swing along the axial direction of the rotating shaft 310. In fact, the two handle halves 110 and the spacer 200 are fixedly installed, so that the handle half 110 with the steel ball 400 installed thereon and the other handle half 110 are disposed in a non-parallel manner, and an included angle between the two handle halves is preferably 3-8 °, so that a user does not feel that the handle half 110 with the steel ball 400 installed thereon is too inclined inward when holding the whole handle 100, and the appearance is overall beautiful and elegant.

It should be noted that the cutter body 300 and the rotating shaft 310 are conventional structures, and the specific structure thereof is not described in detail herein. In this application, the two handle halves 110 are not fixedly connected in parallel, and the cutter body 300 can be kept in the open position during the actual use. For this purpose, the end of the two handle halves 110 hinged to the cutter body 300 is provided with a stopper column 140, and the stopper column 140 is installed on the side of the two handle halves 110 opened with respect to the cutter body 300, actually, on the back of the handle 100, so that the cutter body 300 is prevented from being forced to swing outward in the opened state. One end of the limiting column 140 is fixedly connected with the handle half-part 110 which is not provided with the steel ball 400, and the other end of the limiting column is movably connected with the handle half-part 110 which is provided with the steel ball 400, so that a mounting hole can be manufactured on the handle half-part 110 which is provided with the steel ball 400, and the handle half-part 110 can be prevented from being limited by the limiting column 140 when swinging freely.

In addition, the two handle halves 110 may be made of a metal material in practice, and the steel balls 400 can be directly fitted into the corresponding handle halves 110. In other embodiments, the two handle halves 110 may be made of a non-metallic material, and in order to ensure the pressing force and the abrasion force of the steel ball 400, the metal plate 120 is mounted on the inner side surface of the handle half 110 mounted on the inclined ramp 210, and the steel ball 400 is embedded on the metal plate 120. Wherein the metal sheet 120 is made of a metal material that cannot be bent and deformed, so that the wear resistance of the entire handle half 110 can be improved.

With further reference to fig. 1 to 3, since only one end of the two handle halves 110 is fixedly connected in the present application, for this reason, the handle halves 110 mounted with the steel balls 400 can have different resisting forces in order to ensure the connection strength of the end. The two handle halves 110 are fixedly connected with the spacing piece 200 through a handle screw 500, an adjusting screw 600 is arranged on the handle half 110 on which the steel ball 400 is arranged, and the installation position of the adjusting screw 600 is closer to the cutter body 300 relative to the installation position of the handle screw 500; the adjusting screw 600 movably penetrates through the handle half part 110 and the spacer 200 on the corresponding side and is connected with the handle half part 110 on the other side, and the adjusting screw 600 is used for adjusting the fitting degree of the handle half part 110 provided with the steel ball 400 and the inclined slope surface 210 so as to adjust the pressing force of the steel ball 400 on the cutter body 300. In fact, the adjusting screw 600 has the same structure as the handle screw 500, so that the replacement of parts in the later period is convenient, and the cost is reduced.

In addition, the inclined ramp 210 may cover the whole spacer 200 on one side, or may be a part of the corresponding side of the spacer 200, which is designed according to the actual use requirement. If the inclined ramp 210 covers the corresponding side of the complete spacer 200, the adjusting screw 600 and the handle screw 500 can directly lock the corresponding handle half 110 on the corresponding side of the spacer 200, and the included angle between the handle half 110 with the steel ball 400 and the other handle half 110 is a fixed value and depends on the slope of the inclined ramp 210. If the inclined slope 210 does not cover the whole corresponding side surface of the spacer 200, the handle screw 500 passes through the non-inclined slope 210 area of the spacer 200 in the actual installation, and the adjusting screw 600 is installed on the inclined slope 210, at this time, the adjusting screw 600 presses and deforms the handle half 110 along the corresponding side surface of the spacer 200 and the inclined slope 210, at this time, the deformation amount of the handle half 110 depends on the joint degree of the handle half 110 and the inclined slope 210, if the handle half 110 is completely jointed, the pressing force of the handle half 110 on the steel ball 400 is maximum, and at this time, the pressing force of the steel ball 400 on the cutter body 300 is also maximum.

Referring to fig. 3, in the above embodiment, the handle half 110 mounted with the steel ball 400 is movably connected to one end of the rotating shaft 310, so as to prevent the rotating shaft 310 from rotating along with the cutter body 300, the other end of the rotating shaft 310 and the other handle half 110 cannot rotate relatively, and at this time, a slot or a notch may be formed on one end of the rotating shaft 310 corresponding to the mounting hole on the handle half 110. Meanwhile, in the present application, the handle half part 110 on which the steel ball 400 is mounted can be relatively close to or away from the other handle half part 110, and the orientation of the rotating shaft 310 is substantially fixed, in order to avoid the interference of the rotating shaft 310 on the movement of the handle half part 110 on which the steel ball 400 is mounted, in a modified embodiment of the present application, the handle half part 110 on which the steel ball 400 is mounted is provided with the movement margin hole 130, the movement of one end corresponding to the rotating shaft 310 passes through the movement margin hole 130, the movement margin hole 130 is actually a long waist hole structure, and the length direction is consistent with the length direction of the handle half part 110.

Referring to fig. 1 to 4, in order to achieve the relative locking of the cutter body 300 with respect to the handle 100, that is, the cutter body 300 is locked in the closed position or the open position, in an embodiment of the present application, the cutter body 300 includes a blade portion 330 and a rotating portion 340 rotatably mounted on a gap between the two handle halves 110 through the rotating shaft 310, two locking portions 350 are provided on the rotating portion 340, and the rotating portion 340 can cooperate with any one of the locking portions 350 through the steel ball 400 to be locked in the open position or the closed position with respect to the handle 100. The design of the locking position 350 is the recess or hole used in this application, and the design of the hole is preferred in this application. It should be noted that the diameter of the hole is smaller than the diameter of the steel ball 400, so that the steel ball 400 can be easily separated from the hole.

Further, in actual use, if the handle half 110 is in direct contact with the side surface of the cutter body 300, wear is easily generated, and the blade surface is easily contaminated by debris used for the wear. For this reason, in a modified embodiment of the present application, a first spacer 700 is disposed between the handle half 110 to which the steel ball 400 is not mounted and the cutter body 300, a second spacer 800 is disposed between the handle half 110 to which the steel ball 400 is mounted and the cutter body 300, and both the first spacer 700 and the second spacer 800 can be rotatably mounted on the rotating shaft 310. The two handle halves 110 are spaced from the cutter body 300 by the first spacer 700 and the second spacer 800, reducing direct contact therebetween. Meanwhile, the first shim 700 and the second shim 800 can adjust the position of the cutter body 300 in the gap between the two handle halves 110, so that the swing amount of the handle halves 110 provided with the steel balls 400 can be adjusted conveniently, and at this time, the thicknesses of the first shim 700 and the second shim 800 are only required to be adjusted. The thickness of the first spacer 700 is greater than that of the second spacer 800, such that the cutter body 300 is biased toward the handle half 110 on which the steel ball 400 is mounted, so that the pressing force between the steel ball 400 and the side surface of the cutter body 300 is stronger.

Referring to fig. 4, in a modified embodiment, a plurality of steel balls are uniformly and penetratingly rolled on the second washer 800, in which the second washer 800 constitutes a steel ball washer, and the steel ball washer is provided with a gap or offset, so that when the whole steel ball washer is sleeved on the rotating shaft 310, the body of the steel ball washer and the rotating shaft 310 can relatively rotate, and when the cutter body 300 rotates around the rotating shaft 310, the cutter body 300 and the steel balls on the steel ball washer generate rolling friction, thereby reducing friction force and further reducing wear. In an improved embodiment, in order to facilitate pressing of the steel ball gasket, a steel gasket 360 is further disposed on the side of the rotating shaft 310, which is located on the second gasket 800 and away from the cutter body 300, and a flat position or other structures are disposed on the steel gasket 360, so that the steel gasket 360 cannot rotate relative to the rotating shaft 310, and thus, the position of the second gasket 800 on the rotating shaft 310 is facilitated to be pressed or limited.

Further, in a practical modification of the present application, in order to lock the corresponding ends of the two handle halves 110 to the cutter body 300, grub screws 320 are provided on both ends of the rotary shaft 310, and each grub screw 320 is used for limiting the handle half 110 on the corresponding side. It should be noted that the flat head screw 320 on the side of the handle half 110 where the steel ball 400 is installed mainly functions to limit the swing range of the corresponding handle half 110, and to prevent the cutter body 300 from being loosened due to an excessively large moving range. And the grub screw 320 on the other side is used for locking and limiting the rotating shaft 310 and the handle half part 110 on the corresponding side to prevent the rotating shaft and the handle half part from falling off. The grub screw 320 near one side of the steel gasket 360 is mainly used for locking the steel gasket 360 at the corresponding end of the rotating shaft 310, and at this time, when the steel gasket 360 is normally sleeved on the rotating shaft 310, the steel gasket 360 cannot be completely sleeved in the rotating shaft 310, so that the grub screw 320 at the corresponding end can conveniently lock and press the steel gasket 360 on the second gasket 800.

With further reference to fig. 1 to 5, to facilitate the carrying of the entire knife, a pocket clip 900 is clipped on the end of the two handle halves 110 close to the spacer 200, and one end of the pocket clip 900 may be clipped between the handle halves 110 and the spacer 200 in the present application, and may also be fixed by means of an adjusting screw 600 and a handle screw 500. Of course, for the convenience of installation, the spacer 200 is provided with an installation groove for accommodating one end of the pocket clip 900.

The simple steel ball locking knife comprises a knife handle 100 consisting of two handle halves 110 which are arranged oppositely; the two handle halves 110 are spaced apart by the spacer 200, wherein the inclined slope 210 on the spacer 200 enables the handle half 110 mounted with the steel ball 400 to press against the side of the cutter body 300, and the self-inclined elastic force of the handle half 110 is converted into the pressing force of the steel ball 400, thereby structurally not damaging the whole structure of the handle half 110, enabling the appearance of the handle half 110 to be beautiful, and simultaneously ensuring the strength of the whole handle half 110. Meanwhile, the gap between the two handle halves 110 is not fixed, so that the handle halves 110 mounted with the steel balls 400 can freely swing when the cutter body 300 is engaged with the steel balls 400 in different states.

The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims (10)

1. A simple steel ball locking knife is characterized by comprising

The knife handle consists of two handle halves which are arranged oppositely;

a spacer mounted between the same ends of the two handle halves to maintain a spaced apart arrangement between the two handle halves;

a cutter body, one end of which is rotatably installed on a gap between the other ends of the two handle halves through a rotating shaft, the cutter body being capable of swinging between a closed position and an open position around the rotating shaft; and

the steel ball can be embedded on the inner side surface of one end of any handle half part far away from the spacing piece;

an inclined slope surface is arranged on one side of the spacing piece close to the steel balls, and the slope surface of the inclined slope surface faces to the other ends of the two handle halves; the handle half part provided with the steel ball is arranged on the inclined slope surface, so that the outward side of the steel ball is always abutted against the side surface of the corresponding side of the cutter body; one end, corresponding to the handle half part, provided with the steel ball can swing along the axis direction of the rotating shaft.

2. The simple steel ball locking knife as claimed in claim 1, wherein a metal sheet is mounted on the inner side surface of the handle half mounted on the inclined slope surface, and the steel ball is embedded in the metal sheet.

3. The simple steel ball locking knife as claimed in claim 1, characterized in that the two handle halves are fastened and connected with the spacing piece through a handle screw, an adjusting screw is arranged on the handle half on which the steel ball is mounted, and the mounting position of the adjusting screw is closer to the knife body relative to the mounting position of the handle screw; the adjusting screw movably penetrates through the handle half part and the spacing piece on the corresponding side and is connected with the handle half part on the other side, and the adjusting screw is used for adjusting the joint degree of the handle half part with the inclined slope surface, wherein the handle half part is provided with the steel ball, so that the pressing force of the steel ball on the cutter body can be adjusted.

4. The simple steel ball locking knife as claimed in claim 1, wherein the handle half part mounted with the steel ball is movably connected with one end corresponding to the rotating shaft, and the other end of the rotating shaft and the other handle half part cannot rotate relatively.

5. The simple steel ball locking knife as claimed in claim 4, wherein a movement margin hole is provided on the handle half part on which the steel ball is mounted, and one end of the rotating shaft corresponding to the rotating shaft movably penetrates through the movement margin hole.

6. The simple steel ball locking knife as claimed in claim 1, wherein the two ends of the rotating shaft are provided with grub screws, each grub screw being used to constrain the handle half on a respective side.

7. The simple steel ball locking knife as claimed in claim 1, wherein the knife body comprises a blade portion and a rotating portion rotatably mounted on a gap between the two handle halves through the rotating shaft, the rotating portion is provided with two locking positions, and the rotating portion can be locked on the handle in the open position or the closed position through the steel ball in cooperation with any one of the locking positions.

8. The simple steel ball locking knife as claimed in any one of claims 1 to 7, wherein a first gasket is arranged between the handle half part without the steel ball and the knife body, a second gasket is arranged between the handle half part with the steel ball and the knife body, the thickness of the first gasket is larger than that of the second gasket, and the first gasket and the second gasket can be rotatably mounted on the rotating shaft.

9. The simple steel ball locking knife as claimed in claim 8, wherein the second washer is uniformly rolled with steel balls.

10. A simple steel ball locking knife as claimed in any one of claims 1 to 7 in which a pocket clip is clipped to the end of the two handle halves adjacent the spacer.

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