CN2866936Y

CN2866936Y - Bolt and nut

Info

Publication number: CN2866936Y
Application number: CN 200520034160
Authority: CN
Inventors: 张昌华
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-13
Filing date: 2005-05-13
Publication date: 2007-02-07
Anticipated expiration: 2015-05-13

Abstract

The utility model discloses a fastener comprising a screw bolt(1)'a special-shaped bolt cap (2) and a special-shaped nut (5), which only changes appearance specifications of the bolt cap (2) and the nut (5) without changing the original production standards of the crew bolt(1)and a nut hole (6)'then in accordance with the specifications of the cap bolt (2) and the nut (5), an all-purpose overgarment(7) is designed. The screw bolt(1) and the nut hole (6)are closely connected with each other via the gomphosis of the all-purpose overgarment(7) and the bolt cap (2) or the nut (5).After fastening, the all-purpose overgarment(7)is removed, and the non-standard shape is recovered ,which attain the effect that metal members will not be easily demolished without supplementary tools. The bolt cap (2) and the nut (5) disclosed in the utility model have a certain anti-theft function.

Description

Bolt and nut

Technical field

The utility model relates to fastener areas, especially bolt in the fastening piece and nut.

Background technique

At present, in people's social life and industrial production, a large amount of what use all is bolt and nut by standard production, and its advantage just is for convenience detach.So people often can see the green belt metal guardrail in some avenue public arenas, or the metal guardrail of the highway bridge of by-place, even the iron and steel clamping plate of railway track etc. are dismantled by some lawless persons and are used as scrap iron after the pilferage and sell.In recent years more hear or see some metal constructions of the vitals of some vehicles such as tire, high voltage electric power line steel tower, even city dweller's gas pipe line valve, metallic elements such as fire protection pipeline valve are also dismantled the pilferage back by some lawless persons and are sold as scrap iron, bring very big harm even cause serious consequence for people's normal life and industrial and agricultural production.

The model utility content

Problem to be solved in the utility model provides a kind of being not easy and is disassembled, thereby has the bolt and the nut of certain anti-theft effect.The endoporus of bolt of the present utility model and nut is by standard production, but being a kind of outer edges, the nuts of its bolt and nut be shaped as the nuts and the nut of off-gauge abnormity, the general cover of the external application that it also has an outer edge that matches with it to be shaped as four jiaos or hexagonal or circular nuts and nut, its nuts or nut form an integral body by the chimeric back of the general cover that matches with it, relend the effect that helps spanner, reach bolts and nuts fastening effect mutually.

As realizing first kind of technological scheme of the present utility model, a kind of abnormity of its nuts and nut is that the peripheral edge edge of outer ring has three-dimensional triangle concave indentation, the abnormity of the general cover of its nuts and nut is four jiaos or hexagonal for the outside shape, and interior be to make along shape according to the outer edge shape of nuts or nut.The pointed chimeric block that the 3-D triangle protruding block is arranged, it prevents the tread plate of general downward slippage when being enclosed within nuts or nut packing interaction in addition, after the pointed chimeric block of the interior round triangular hill of the general cover by nuts and nut and the outer edge triangle concave indentation of nuts and nut mutual chimeric, relend the effect that helps spanner, reach bolts and nuts fastening effect mutually.

As realizing second kind of technological scheme of the present utility model, the another kind of abnormity of its nuts and nut for the peripheral edge of outer ring along on three-dimensional rectangular concave indentation is arranged, cause its nuts and nut to be tooth flower shape, the abnormity of the general cover of its nuts and nut is four jiaos or hexagonal for the outside shape, and interior be the general cover of tooth flower shape of the convex made according to the outer edge concave indentation shape of nuts and nut along shape, its rectangular protruding block is just chimeric mutually with the rectangular concave indentation of nuts and nut, relend the effect that helps spanner, reach bolts and nuts fastening effect mutually.Take off general cover after fastening, recover the non-standard abnormity of nuts or nut, promptly reach the anti-theft effect of metal construction of being installed as just being not easy without special tool to be disassembled.

As realizing the third technological scheme of the present utility model, another abnormity of its nuts and nut for the peripheral edge of outer ring along on the square concave indentation more than two or two of symmetry is arranged, the abnormity of the general cover of its nuts and nut is four jiaos or hexagonal for the outside shape, its interior circle is a circular port that can pass the diameter of bolt that matches with it, its four jiaos or the square protruding block that matches with the square concave indentation of nuts and nut in addition down of the bottom surface of the general cover of hexagonal, by after concave indentation on the protruding block under the general cover bottom surface and nuts and the nut circumference edge mutual chimeric, relend the effect that helps spanner, reach bolts and nuts fastening effect mutually.Equally, take off general cover after fastening, recover the non-standard abnormity of nuts or nut, promptly reach the anti-theft effect of metal construction of being installed as just being not easy without special tool to be disassembled.

As realizing that this realization is as novel, the general cover of external application matches with nuts or nut, it also has a kind of cylindrical to be shaped as circular general cover, its interior toroidal also has a circular port that can pass the bolt that matches with it, the square protruding block that matches with the square concave indentation of nuts and nut is also arranged under its outer annulus edge bottom surface, one side of its circle cover is added with a power-assisted handle, by the concave indentation on the protruding block under the general cover bottom surface and nuts or the nut circumference edge mutually chimeric after, move the power-assisted handle, reach bolts and nuts fastening effect mutually, it can also add one section or two sections cylindrical steel bars on the both sides of the general cover of circle, relend the effect that helps tubular holders, reach bolts and nuts fastening effect mutually.

As the general cover of realizing in the technique scheme of external application that matches with special shaped screw bolt cap or nut, it can also be as required adds one or two power-assisted handles at the periphery of general cover, its effect be can be no longer when clamping bolt or nut by the effect of spanner and directly reach fastening effect.

According to technique scheme of the present utility model, the outer edge shape of its nuts and nut can be conceived with this and designs multiple abnormity, and the center embedding hole of the general cover of its nuts and nut also is mixed with multiple abnormity with its tabling according to the multiple abnormity of the outer edge of nuts and nut.

Adopt the screw bolt and nut of the non-standard special shaped screw bolt cap of technique scheme production, can use on the metal parts of some public arenas or by-place installation, or on some components of machine of often not dismantling, like this, as not using the special-purpose instrument that matches, just be not easy by dismounting pilferage easily.

Description of drawings

Fig. 1 is wherein a kind of schematic perspective view of special shaped screw bolt cap.

Fig. 2. Fig. 3. Fig. 4. Fig. 5 is the planimetric map of four kinds of special shaped screw bolt caps wherein

Fig. 6 is a kind of three-dimensional effect diagram of abnormity nut wherein.

Fig. 7. Fig. 8. Fig. 9. Figure 10. Figure 11. Figure 12 is the planimetric map of six kinds of abnormity nuts wherein.

Figure 13. Figure 14 is the planimetric map of two kinds of special shaped screw bolt caps and the general cover of nut wherein.

Figure 15 be wherein a kind of special shaped screw bolt cap with floor map after the general cover that matches is chimeric.

Figure 16 be wherein a kind of abnormity nut with floor map after the general cover that matches is chimeric.

Figure 17 is the floor map of another kind of special shaped screw bolt cap.

Figure 18 is the floor map of another kind of abnormity nut.

Figure 19 is and Figure 17. the schematic perspective view of the circular general cover upset bottom surface that Figure 18 matches, the circular general cover among the figure does not add the power-assisted handle.

Figure 20 is the positive floor map of Figure 19.

Figure 21 is Figure 17. Figure 18. the schematic perspective view of the square general cover upset bottom surface that matches of another kind.

Figure 22 is the positive floor map of Figure 21.

Figure 23 is wherein a kind of floor map that has added the square general cover of power-assisted handle.

Figure 24 has added the square general cover of power-assisted handle and the planar effect picture behind the special shaped screw bolt cap tabling.

Figure 25 is the Figure 19 that has added the power-assisted handle. the floor map of circular general cover shown in Figure 20.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

Bolt 1 shown in Figure 1 is a standard piece, and the outer edge of its nuts 2 is shaped as off-gauge abnormity, and the peripheral edge of the outer ring of its nuts 2 is along having 4 symmetries.Three-dimensional △ v notch v 3, the bolt part that is combined into a kind of abnormity with the abnormity and the standard piece bolt 1 of its nuts 2, can with the supporting use of the nut of standard.

Fig. 2. Fig. 3. Fig. 4. Fig. 5 is the floor map according to wherein other four kinds of special shaped screw bolt caps 2 of the diameter of bolt 1 diameter of Fig. 1 and special shaped screw bolt cap 2 design, and wherein the rectangular concave indentation 4 left of Fig. 4 makes its nuts be tooth flower shape.

The abnormity nut 5 that Fig. 6 provides is to match with the bolt 1 of Fig. 1, and its nut bore 6 is a gauge hole spare, and is identical with bolt 1 diameter, and the peripheral edge of its outer ring is along having 4 symmetries.Three-dimensional △ v notch v 3, its △ v notch v 3 is identical with the format diameter size of the △ v notch v 3 that nuts 2 is left, so both can be common to the general cover of same specification.

Fig. 7. Fig. 8. Fig. 9. Figure 10. Figure 11. Figure 12 is the floor map of wherein other six kinds of abnormity nuts 5 of the format diameter size design of the abnormity nut 5 that provides according to Fig. 6.Wherein the rectangular concave indentation 4 left of Fig. 9 makes its nut be tooth flower shape.

Figure 13. what Figure 14 provided is the floor map of two kinds of different general covers 7.General cover 7 outer edges among the figure are quadrangle.And interior be to make along shape according to the outer edge shape of nuts 2. nuts 5.The tread plate 8 of downward slippage when the pointed chimeric block 10. that has a three-dimensional △ shape protruding block prevents general cover 7 in addition with nuts 2 or nut 5 packing interactions, the center embedding hole 9 of general cover 7 and in the pointed chimeric block 10 of △ shape of circle stressed with the outer edge △ v notch v 3 mutual chimeric backs of nuts 2 or nut 5.Relend the effect that helps spanner. reach bolt 1 and nut 5 mutual fastening effects.

Figure 15. Figure 16 provides be two kinds of different general covers 7 with nuts 2, the planar effect picture during nut 5 packing interactions.The center embedding hole 9 of general cover 7 just is entrenched togather with the outer edge of nuts 2 or nut 5 and forms integral body 11. integral body 12, does both are slided when fastening turning spanner like this, helps the fastening mutually of bolt 1 and nut 5.

Figure 17. what Figure 18 provided is the floor map of another kind of special shaped screw bolt cap 2 and abnormity nut 5.Among the figure, the peripheral edge of the outer ring of nuts 2 and nut 5 along on have four symmetries. three-dimensional square concave indentation 13, this square concave indentation 13 be nuts 2 or nut 5 force part with general cover 7 packing interactions the time just.

Figure 19. Figure 21 is and Figure 17. the schematic perspective view of the upset bottom surface of two kinds of general covers 7 that Figure 18 matches.The interior circular diameter of the central round orifice 14 among the figure be one greater than the circular port 14. of bolt 1 diameter that matches with it so that bolt 1 when work, can from the central round orifice 14 of general cover 7, pass easily.The square protruding block 15 that under general cover 7 upset bottom surfaces, stretches out, being and Figure 17. the square concave indentation 13 of nuts 2 shown in Figure 18 and nut 5 matches, its length. width specifications is being as the criterion with square concave indentation 13 tablings of nuts 2 and nut 5, so that general cover 7 is combined into an integral body with nuts 2 or nut 5, be beneficial to fastening effect.

At the circular general cover 7 shown in Figure 19, it also has a power-assisted handle 16 as shown in Figure 25.Equally, square general cover 7 also can add a power-assisted handle 16, as Figure 23. shown in Figure 24, can relend the effect that helps spanner like this and directly reach fastening effect.

Design Conception according to technique scheme; also can be from the needs of people's life and industrial and agricultural production; design more non-standard abnormity, satisfying the material life needs that people are become increasingly abundant, but so special-shaped conversion all drops within the protection domain of the present utility model.

Claims

1, a kind of bolt and nut, it is characterized in that, the nuts (2) of its bolt (1) and nut (5) are nuts (2) and the nuts (5) that a kind of outer edge is shaped as off-gauge abnormity, it also has an outer edge that matches with it to be shaped as the general cover of external application (7) of four jiaos or hexagonal or circular nuts (2) and nut (5), and its nuts (2) or nut (5) form an integral body by the chimeric back of the general cover (7) that matches with it.

2, bolt according to claim 1 and nut, it is characterized in that, a kind of abnormity of its nuts (2) and nut (5) is that the peripheral edge edge of outer ring has three-dimensional triangle concave indentation (3), the abnormity of the general cover (7) of its nuts (2) and nut (5) is four jiaos or hexagonal for the outside shape, and interior be to make along shape according to the outer edge shape of nuts (2) or nut (5), the pointed chimeric block (10) that the 3-D triangle protruding block is arranged, it prevents the tread plate (8) of general cover (7) downward slippage with nuts (2) or nut (5) packing interaction the time in addition, and the pointed chimeric block (10) of the interior round triangular hill of the general cover (7) by nuts (2) and nut (5) forms an integral body with the mutual chimeric back of the outer edge triangle concave indentation (3) of nuts (2) and nut (5).

3, bolt according to claim 1 and nut, it is characterized in that, the another kind of abnormity of its nuts (2) and nut (5) for the peripheral edge of outer ring along on three-dimensional rectangular concave indentation (4) is arranged, cause its nuts (2) and nut (5) to be tooth flower shape, the abnormity of the general cover (7) of its nuts (2) and nut (5) is four jiaos or hexagonal for the outside shape, and interior be the tooth flower general cover of shape (7) of the convex made according to outer edge concave indentation (4) shape of nuts (2) and nut (5) along shape, its rectangular protruding block just with integral body of the mutual chimeric formation of the rectangular concave indentation (4) of nuts (2) and nut (5).

4, bolt according to claim 1 and nut, it is characterized in that, another abnormity of its nuts (2) and nut (5) for the peripheral edge of outer ring along on the square concave indentation (13) more than two or two of symmetry is arranged, the abnormity of the general cover (7) of its nuts (2) and nut (5) is four jiaos or hexagonal for the outside shape, its interior circle is a circular port (14) that can pass bolt (1) diameter that matches with it, its four jiaos or the square protruding block (15) that matches with the square concave indentation (13) of nuts (2) and nut (5) down of the bottom surface of the general cover (7) of hexagonal by the protruding block (15) general cover (7) bottom surface under and nuts (2) and nut (5) peripheral edge integral body of mutual chimeric formation afterwards along last concave indentation (13) with ining addition.

5, bolt according to claim 4 and nut, it holds to levy, it also has a kind of cylindrical to be shaped as circular general cover (7), its interior toroidal also has a circular port (14) that can pass the bolt (1) that matches with it, the square protruding block (15) that matches with the square concave indentation (13) of nuts (2) and nut (5) is also arranged under its outer annulus edge bottom surface, one side of its circular general cover (7) is added with assistant's handle (16), forms an integral body by the protruding block (15) under general cover (7) bottom surface and nuts (2) or nut (5) peripheral edge along the mutual chimeric back of last concave indentation (13).

6, bolt according to claim 1 and nut is characterized in that, it can also be as required adds one or two power-assisted handles (16) at the periphery of general cover (7).