CN205271932U

CN205271932U - Can can't harm pocket instrument of dismouting

Info

Publication number: CN205271932U
Application number: CN201521088569.4U
Authority: CN
Inventors: 徐杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-22
Filing date: 2015-12-22
Publication date: 2016-06-01
Anticipated expiration: 2025-12-22

Abstract

The utility model discloses a can can't harm pocket instrument of dismouting, shell including functional body and both sides, functional body have 2 at least baffles, at least 2 to be taken screwed structure axle, nut, spring part and can and support the functional unit on the spring part around the structure rotation of axes, a plurality of baffles parallel of each other, and the space between the adjacent baffle is functional unit's the district that holds, connect baffle, spring part and functional unit through structure axle and nut, the shell inboard is located that to be equipped with the shell that is used for holding the nut with the shaft position department sunken with the structure axle, through the sunken in close contact with of nut and shell with shell and functional body lock, the surface that the shell is sunken is the cylinder internal surface, and the lateral surface of nut is separated outer convex curved surface and the plane of arranging or is separated the outer convex curved surface who arranges and constituted with the parallel planarea of nut axis by mutual by mutual, and the planarea is protruding to nut axle orientation. The utility model discloses can realize harmless dismouting, it is very convenient to change the shell.

Description

A kind of can the mini tool of lossless dismounting

Technical field

This utility model relates to a kind of mini tool, and particularly pocket knife (or be called foldable tool, pocket cutter), uses threaded, and use the nut of special construction to connect key component as structure.

Background technology

Mini tool, particularly Swiss Army Knife often there will be dirt (fruit juice, perspiration etc.) in routine use process and flow near axle, and not easy cleaning, thus causing functional part folding not smooth. Existing Swiss Army Knife uses riveted structure, it is impossible to carry out lossless dismounting.

Further with the mini tool of separate housing parts, particularly Swiss Army Knife, have, when shell abrasion, damage or individual demand, the demand changing shell. But due to self structure reason during existing Swiss Army Knife dismounting shell, it will usually destroy shell, it is impossible to lossless dismounting shell.

Utility model content

This utility model is the improvement for the above-mentioned deficiency of existing Swiss Army Knife. The mini tool that this utility model relates to, owing to its special construction makes mini tool lossless to dismount, and disassembling, assembling and replacing shell easily.

In order to solve above-mentioned technical problem, this utility model is a kind of can a kind of technical scheme of being achieved of the mini tool of lossless dismounting be, this mini tool includes function body and is positioned at the shell of function body both sides, described function body has at least 2 dividing plates, at least 2 screwed axis of no-featherings, nut, spring parts and the functional part that can rotate around axis of no-feathering and be supported on spring part, multiple dividing plates are parallel to each other, and the space between adjacent separator is the accommodation district of functional part; By described axis of no-feathering and nut, dividing plate, spring part and functional part are connected; It is positioned at the position coaxial with axis of no-feathering inside described shell and is provided with the housing depressions for holding nut, by the close contact of nut with housing depressions, shell is fastened with function body; The surface of described housing depressions is internal surface of column, the lateral surface of described nut is made up of with plane or convex outward and the planarea parallel with nut axis by spaced layout the convex outward of spaced layout, and described straight line is protruding towards nut shaft direction.

This utility model is a kind of can the another kind of technical scheme that is achieved of the mini tool of lossless dismounting be, this mini tool includes function body and is positioned at the shell of function body both sides, described function body has at least 2 dividing plates, at least 2 screwed axis of no-featherings, nut, spring parts and the functional part that can rotate around axis of no-feathering and be supported on spring part, multiple dividing plates are parallel to each other, and the space between adjacent separator is the accommodation district of functional part; By described axis of no-feathering and nut, dividing plate, spring part and functional part are connected; It is positioned at the position coaxial with axis of no-feathering inside described shell and is provided with groove, it is provided with packing ring in described groove, described packing ring is fixing, and the endoporus of described packing ring is used for holding nut in the housing, is fastened with function body by shell by the close contact of nut with packing ring; The inner surface of described packing ring is internal surface of column, the lateral surface of described nut is made up of with plane or convex outward and the planarea parallel with nut axis by spaced layout the convex outward of spaced layout, and described straight line is protruding towards nut shaft direction.

Further, this utility model can the mini tool of lossless dismounting, wherein, it is be in close contact respectively between described convex outward and the internal surface of column of housing depressions or between described convex outward and the inner surface of packing ring, thus shell is fastened on function body.

Compared with prior art, the beneficial effects of the utility model are: make the mini tool being similar to Swiss Army Knife lossless to dismount, and especially housing portion disassembling, assembling and replacing is convenient.

Accompanying drawing explanation

Fig. 1-1 is the explosive view of this utility model mini tool;

Fig. 1-2 is the explosive view at another visual angle of mini tool shown in Fig. 1-1.

Fig. 2-1 is the perspective view of nut in this utility model mini tool;

Fig. 2-2 is the top view of nut shown in Fig. 2-1;

Fig. 2-3 is the side view of nut shown in Fig. 2-1;

Fig. 2-4 is the upward view of nut shown in Fig. 2-1;

The structure that Fig. 3-1 is handle in this utility model mini tool forms schematic diagram;

Fig. 3-2 is the axial sectional view of this utility model middle washer;

Fig. 4-1 is the front view of axis of no-feathering in this utility model;

Fig. 4-2 is the top view of axis of no-feathering shown in Fig. 5-1;

Fig. 4-3 is the upward view of axis of no-feathering shown in Fig. 5-1;

Fig. 5 is that in this utility model, nut forms schematic diagram;

Fig. 6 is the feature schematic diagram of planarea homologous thread outside nut in this utility model;

Fig. 7-1 is the top view of nut in this utility model;

Fig. 7-2 is the sectional view of slice location shown in Fig. 7-1;

Fig. 7-3 is the close-up schematic view of position shown in Fig. 7-2, in order to represent the feature of convex outward;

Fig. 8-1 is the schematic perspective view of nut and packing ring matching relationship in this utility model;

Fig. 8-2 is the floor map of nut shown in Fig. 8-1 and packing ring matching relationship;

Fig. 8-3 is the top view of nut shown in Fig. 8-2 and packing ring matching relationship;

Fig. 9 is the disassembly process step decomposing schematic representation of this utility model mini tool;

Figure 10-1 is the another kind of structural representation in this utility model;

Figure 10-2 is the explosive view of the mini tool with axis of no-feathering shown in Figure 10-1.

In figure:

1,2,3-dividing plate 4,5,6-axis of no-feathering 7��12-nut

13,14-spring part 15-blade 16-saw blade

17,18-shell 19��24-housing depressions 25��30-packing ring

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, technical solutions of the utility model being described in further detail, this utility model is only explained by described specific embodiment, not in order to limit this utility model.

As shown in Fig. 1-1 and Fig. 1-2, this utility model a kind of can the mini tool of lossless dismounting, including function body and the shell 17,18 being positioned at function body both sides.

Described function body have the screwed axis of no-feathering of 1,2,3, at least 2, at least 2 dividing plates 4,5,6, nut 7��12, spring part 13,14 and the functional part (blade 15, saw blade 16) that can rotate around axis of no-feathering 4,5,6 and be supported on spring part, multiple dividing plates 1,2,3 are parallel to each other, the accommodation district that space is the functional part such as blade 15 or saw blade 16 between adjacent separator 1 and 2 and 2 and 3; By described axis of no-feathering 4,5,6 and nut 7��12 by dividing plate 1,2,3, spring part 13,14 and functional part connect.

It is positioned at the position coaxial with axis of no-feathering 4,5,6 inside shell 17,18 and is provided with groove, packing ring 25��30 it is provided with in described groove, packing ring 25��30 is fixed in shell 17,18, the endoporus of packing ring 25��30 is used for holding nut 7��12, by the close contact of nut 7��12 with packing ring 25��30, shell 17,18 and function body are fastened, the inner surface of packing ring 25��30 is internal surface of column, and packing ring 25��30 has elasticity. The lateral surface of nut 7��12 is made up of convex outward and the planarea parallel with nut axis of spaced layout, and described straight line is protruding towards nut shaft direction. If the material of shell 17,18 has elasticity, can meet fastening demand, then adopt shell be positioned at the position coaxial with axis of no-feathering be arranged to hold nut housing depressions, the surface of housing depressions is internal surface of column, is fastened with function body by shell by the close contact of nut 7��12 with housing depressions.

As shown in Fig. 4-1 and Figure 10-1, axis of no-feathering 4 described in this utility model, 5,6 both can be respectively arranged at two ends with the screw thread coordinated with a nut 7��12; Can also being the screw rod with spiro rod cap, but wherein the profile of spiro rod cap is identical with the profile of nut in this utility model 7��12, namely one end of described axis of no-feathering e21 and a nut be fixed as one, and the other end of described axis of no-feathering is connected with another nut 7,8,9. The explosive view of mini tool when Figure 10-2 is adopt the second axis of no-feathering e21, e22, e23.

As shown in figure 3-1, packing ring 25,26,27 is fixed in the groove inside shell 17, and packing ring 25,26,27 inner surface is internal surface of column, and chamfered is done in inside edge, outer side. Fig. 3-2 is the axial sectional view of packing ring 25,26,27, and packing ring 25��30 inner surface radius is r, and porch radius is r1, r1 > r.

Fig. 2-1, Fig. 2-2, Fig. 2-3 and Fig. 2-4 show the structure of nut 7��12 for nut 10. Hereinafter the convex outward on outside nut 7��12 is called buckling surface, the planarea parallel with nut shaft upper outside nut 7��12 is called fastening face. Planarea 10-d1,10-d2,10-d3 parallel with nut shaft in figure is fastening face (10-d4 blocks not shown in the diagram due to visual angle); Convex outward 10-c1,10-c2,10-c3,10-c4 are buckling surface, and in the present embodiment, buckling surface and fastening face all have 4; Plane 10-a is the end face of nut 10, and plane 10-b is the bottom surface of nut 10. Nut 7��12, as tightening member, has rotational symmetry structure, and namely nut 7��12 overlaps with when not rotating afterwards around nut shaft 90-degree rotation (360 degree/4).

As shown in Figure 5, for the convenient architectural feature describing nut 7��12, for nut 10, it is considered as being formed by following steps by nut 7��12: 1. nut base, namely open the cylinder of tapped through hole along axis (hereinafter referred to as nut shaft), cylindrical radius is R0; 2. forming the equally distributed planarea parallel with nut shaft outside nut base, straight line is protruding towards nut shaft direction, and outside retains the face of cylinder of equal number; 3. convex curve forms equally distributed convex outward, i.e. buckling surface after nut shaft rotates outside nut 7��12.

After 2. step completes, nut top view such as Fig. 6. The identical profiles uniform protruding to the center of circle of 4 strips is distributed in excircle, instead of part external arc. The central angle that curve that �� is protruding to the center of circle is corresponding, �� is the central angle that short circular arc is corresponding, then have ��>0, ��>0, ��+��=90 degree. Setting up such as Fig. 6 coordinate system (O is initial point), the equation of curve OBA is y=f (x). Then curve meets following condition simultaneously: 1. curve ODE is 3 B-SPLs, and y=f (x) second order can lead (x �� (O, E)); 2. f (O)=f (E)=0, f (x)>0 (x �� (O, E)); 3. OCD is convex curve and in �� OEC, i.e. arctan ((��-��)/2)>f ' (O)>0,-arctan ((��-��)/2)<f ' (E)<0, f " (x)<0 (x �� (O, E)) (f ' (x) is 1 rank derived function; F " (x) is 2 rank derived functions).

Fig. 7-2 is nut 10 cutting line gained section along Fig. 7-1, and Fig. 7-3 is section curve OBA partial enlarged drawing. 3. step is that curve OBA is rotated in 4 equally distributed convex outward of formation outside nut around nut shaft. Setting up coordinate system in Fig. 7-3 (O is initial point), the equation of curve OBA is y=g (x). Then curve meets following condition simultaneously: 1. curve OBA is 3 B-SPLs, and y=g (x) second order can lead (x �� (O, P)); 2. g (O)=0, g (P)>0, g (x)>0 (x �� (O, P)); 3. curve OBA is convex curve, and namely<0, g " (x)<(g ' (x) is 1 rank derived function to 0 (x �� (O, P)) for g ' (O)>0, g ' (P); G " (x) is 2 rank derived functions); 4. B point (i.e. g (Q)) is y=g (x) (x �� (O, P) maximum of points), and | OQ |<(| OP |/3), namely maximum of points is near initial point side, and B point is R0 to the distance of nut shaft. In the radial section of nut 7��12 (cross section orthogonal is in nut shaft), the radius of buckling surface correspondence circular arc is called the nut radius at tangent plane place, and nut 7��12 top radius is R1, and nut radius maximum is R0.

Nut 7��12 fastening face is set to the planarea for being parallel to nut shaft, in order to receive spanner; As shown in Figure 6, it is the smooth curve to center of circle projection that nut 7��12 fastens face homologous thread, the convenient torsion ability to bear received spanner and add nut 7��12 of this set. In Fig. 7-3, curve OBA is smooth convex curve, and maximum of points is near initial point. Rotated, by curve OBA, nut 7��12 smooth evagination of buckling surface that formed, and buckling surface protrudes and be near nut 7��12 top side most, make the repeatable fastening of shell 17,18, and the fastening rear casing 17,18 that puts in place is not easy to come off.

Fig. 8-1, Fig. 8-2, Fig. 8-3 are that nut 7��12 coordinates schematic diagram (for nut 10 and packing ring 25) with packing ring 25��30. Nut 7��12 radius R1 is less than packing ring 25��30 porch radius r1, in order to nut 7��12 can enter packing ring 25��30 smoothly. Packing ring 25��30 inner surface radius r is slightly less than nut 7��12 maximum radius R0, and packing ring 25��30 has elasticity, therefore when nut 7��12 enters there is elastic deformation in packing ring 25��30, and produces pressure and frictional force between nut 7��12, it is ensured that not easily gets loose after fastening.

Fig. 9 is mini tool dismounting step schematic diagram. Mini tool demounting procedure is as follows: 1. step, is inserted the gap between shell 17,18 and function body with straight screwdriver or foil, firmly pulled open to mini tool both sides respectively by shell 17,18 so that it is separate from mini tool; 2. step outwards winding nut 7,8,9 also so as to separate from mini tool; 3. dividing plate 3, saw blade 16, spring part 14, dividing plate 2, blade 15, spring part 13 are dismantled (along axis of no-feathering 4,5,6 central axis direction) by step successively from mini tool; 4. axis of no-feathering 4,5,6 is removed by step, nut 10,11,12 of outwarding winding. Carry out according to the rightabout of above-mentioned steps during installation.

Handle and defencive function main body is not only played a part due to shell, generally also want to the material adopting sense organ comparatively to enjoy, such as adopt whippy plastic cement, natural timber, the materials such as animal horns, not only outward appearance is beautiful, fashion, and feel is also comfortable when holding, in order to strengthen the intensity of shell, natural material is prevented to be deformed because of environmental factors self, shell in this utility model adopts lamination layer structure, namely (liner) that be provided with potentiation in the inner side of the decorative layer being positioned at outer layer strengthens plate, this reinforcement sheet material matter can adopt metal or highstrenghtpiston etc.

Although this utility model being described above in conjunction with accompanying drawing; but this utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is merely schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; when without departing from this utility model objective; (number such as nut buckling surface or fastening face can not be 4 can also to make many variations; take the integer more than 2), these belong within protection of the present utility model.

Claims

1. can the mini tool of lossless dismounting, including function body and the shell being positioned at function body both sides, it is characterised in that:

Described function body has at least 2 dividing plates, at least 2 screwed axis of no-featherings, nut, spring parts and the functional part that can rotate around axis of no-feathering and be supported on spring part, multiple dividing plates are parallel to each other, and the space between adjacent separator is the accommodation district of functional part; By described axis of no-feathering and nut, dividing plate, spring part and functional part are connected;

The inner side of described shell is positioned at the position coaxial with axis of no-feathering and is provided with the housing depressions for holding nut, is fastened with function body by shell by the close contact of nut with housing depressions;

The surface of described housing depressions is internal surface of column, the lateral surface of described nut is made up of with plane or convex outward and the planarea parallel with nut axis by spaced layout the convex outward of spaced layout, and described straight line is protruding towards nut shaft direction.

2. according to claim 1 a kind of can the mini tool of lossless dismounting, it is characterised in that for close contact between described convex outward and the internal surface of column of housing depressions, thus shell is fastened on function body.

3. according to claim 1 a kind of can the mini tool of lossless dismounting, it is characterised in that the two ends of described axis of no-feathering are connected with a nut respectively.

4. according to claim 1 a kind of can the mini tool of lossless dismounting, it is characterised in that one end of described axis of no-feathering and a nut are fixed as one structure, and the other end of described axis of no-feathering is connected with another nut.

5. according to claim 1 a kind of can the mini tool of lossless dismounting, it is characterised in that the material of described shell adopts composite plate, and this composite plate includes the decorative panel of outer layer and the reinforcement plate of inner side.

6. can the mini tool of lossless dismounting, including function body and the shell being positioned at function body both sides, it is characterised in that:

It is positioned at the position coaxial with axis of no-feathering inside described shell and is provided with groove, it is provided with packing ring in described groove, described packing ring is fixing, and the endoporus of described packing ring is used for holding nut in the housing, is fastened with function body by shell by the close contact of nut with packing ring;

The inner surface of described packing ring is internal surface of column, the lateral surface of described nut is made up of with plane or convex outward and the planarea parallel with nut axis by spaced layout the convex outward of spaced layout, and described straight line is protruding towards nut shaft direction.

7. according to claim 6 a kind of can the mini tool of lossless dismounting, it is characterised in that for close contact between described convex outward and the inner surface of packing ring, thus shell is fastened on function body.

8. according to claim 6 a kind of can the mini tool of lossless dismounting, it is characterised in that the two of described axis of no-feathering are connected with a nut respectively.

9. according to claim 6 a kind of can the mini tool of lossless dismounting, it is characterised in that one end of described axis of no-feathering and a nut are fixed as one structure, and the other end of described axis of no-feathering is connected with another nut.

10. according to claim 6 a kind of can the mini tool of lossless dismounting, it is characterised in that the material of described shell adopts composite plate, and this composite plate includes the decorative panel of outer layer and the reinforcement plate of inner side.