CN201448341U

CN201448341U - Combined anti-theft nut

Info

Publication number: CN201448341U
Application number: CN200920035554XU
Authority: CN
Inventors: 何天麟
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-13
Filing date: 2009-03-13
Publication date: 2010-05-05
Anticipated expiration: 2019-03-13

Abstract

The utility model relates to an undetachable anti-theft fastening device (second serial): a combined anti-theft nut. The anti-theft nut is a combined anti-theft nut with excellent anti-theft effect formed by integrating a cone outer screw anti-theft nut and a fastening nut. The anti-theft effect is better after adding a bowl-shaped anti-theft gasket. The nut is fastened by positively twisting and the fastening nut is released immediately via negatively twisting, in order to reach the specific profile anti-theft effect. The utility model uses the profile to guard against theft and has a combined anti-theft nut which is second serial having convenient high-altitude rapid installation.

Description

The combined type anti-theft nut

Technical field:

The utility model relates to a kind of fastening piece.Particularly relate to the non-removable combined type anti-theft nut of a kind of quick mounting.

Background technique:

In recent years, open-air electric power line steel tower in the national grid, owing to stolen repeatly, brought great hidden danger to electrical network, made country cause great loss, an iron rake with three to six teeth suffers damage of external force in order to avoid transmitting electricity, State Grid Corporation of China brings up to 15 meters with original an iron rake with three to six teeth bolt and nut technical precaution measure from 6 meters, so occurred multiple anti-theft nut on the market: though have anti-theft feature arranged, bolt or nut are cut open the chest to dig the transformation of tripe formula, serious mechanical property that has slackened bolt or nut and intensity; Though what have has a defense function, but all there are defectives such as great difficulty in installation rate, difficulty is installed in the great operation that the installation exercise of high-altitude an iron rake with three to six teeth all brings, especially in the summer of broiling sun and the winter that The cold wind penetrates one's bones, the assembler stands in the high-altitude more than 6 meters, and each anti-theft nut is installed, and unique requirement is exactly quick, but more haste, less speed often, will solve the anti-theft nut quick mounting like this and just become a problem that is worth researching and solving.

The model utility content:

The utility model is in order to overcome the shortcomings and deficiencies that existing anti-theft nut exists, by the suggestion collection to grid company and applying unit, to develop the combined type anti-theft nut at the high-altitude quick mounting on this basis.

The technical problem that solves

The utility model is that the installation rate of anti-theft nut is brought up to the installation rate that is equal to the common standard nut and had very good profile anti-theft effect.

The technological scheme of being taked

The utility model is to screw the combined type anti-theft nut that is installed as one mutually by the spiral tooth that twines on inside and outside two truncated cones body cones, and wherein, the cone nut profile is a truncated cone, is twining the nut of external spiral tooth on the conical surface.Endoporus is the interior threaded hole that matches with external spiral tooth on the bolt.The tightening nut profile is the polygon nut, endoporus is the cavity of interior truncated cone, is also twining the internal spiral tooth that matches with the external spiral tooth that twines on the cone nut conical surface on its internal cone wall, screws combined type anti-theft nut in aggregates mutually, easy to carry, quick for installation.

Its feature: a kind of dependence cone nut, do not limit positive and negative thread, do not limit thread form yet, only the thread that twines on thread that twines on the need nut male cone (strobilus masculinus) and the inner hole wall is the screw thread of same direction rotation, screw into the combined type anti-theft nut with tightening nut such as same common tightening nut can be directly installed on the bolt, in case when being subjected to derotation power, its tightening nut comes off immediately, what stay is with the antitheft cone nut of profile.

If increase the bowl-type rubber pad circle when installing, then anti-theft effect is better, but tightening nut must extend, its profile is: front end is rotation in the cylindrical gap of being convenient to insert between cup packing and the cone nut, the rear end is for ease of the fastening polygon nut of spanner rotation, the endoporus front end is to twine the internal spiral tooth that matches with the external spiral tooth that twines on the cone nut conical surface on the interior truncated cones body cone, the rear end is the cavity that can insert the cylindrical hole of screw rod, and the purpose of lengthening is in order to operate installation outside the cup packing height.

If the centrum bottom at cone nut is made into the concave step that can hold spring washer, just become the combined type anti-theft nut of built-in spring washer, reached the excellent effect of anti-loose anti-theft.

The invention has the beneficial effects as follows:

The utility model has solved the huge difficulty of high-lift operation, the installation rate of anti-theft nut is brought up to the installation rate that is equal to the common standard nut and is had easy to carry, quick for installation, the antitheft anti-loosing effect of high efficiency, and the dismounting after tightening nut also can continue to use repeatedly, reduced cost greatly.

Description of drawings:

Fig. 1-1 combined type anti-theft nut (plan view);

Fig. 1-2 combined type anti-theft nut (left view);

Fig. 2-1 has the combined type anti-theft nut (plan view) of bowl-type Anti-theft washer;

Fig. 2-2 has the combined type anti-theft nut (left view) of cup packing;

The combined type anti-theft nut (plan view) of the built-in spring washer of Fig. 3-1;

The combined type anti-theft nut (left view) of the built-in spring washer of Fig. 3-2;

The combined type anti-theft nut (plan view) that Fig. 4-1 installs;

Cone nut (plan view) behind Fig. 4-2 dismounting tightening nut;

Fig. 5-1 installs the combined type anti-theft nut (plan view) that has cup packing;

The cone nut (plan view) that has cup packing behind Fig. 5-2 dismounting lengthening tightening nut;

The combined type anti-theft nut (plan view) of the built-in spring washer that Fig. 6-1 installs;

The cone nut (plan view) of built-in spring washer behind Fig. 6-2 dismounting tightening nut;

Among Fig. 1-Fig. 6:

1. cone nut;

2. the cone nut of built-in spring washer;

3. tightening nut;

4. lengthening tightening nut

5. cup packing;

6. spring washer

7. bolt

8. iron plate

9. iron plate;

Embodiment:

Below in conjunction with accompanying drawing the utility model specifically is described below:

Embodiment 1

Shown in Fig. 1-1,1-2, cone nut 1 and tightening nut 3 are screwed the combined type anti-theft nut that installation forms;

Embodiment 2

Shown in Fig. 2-1,2-2, be inserted in after the fastening screw 4 of cone nut 1 and lengthening screwed the combined type anti-theft nuts that have cup packing that form are installed in the cup packing 5;

Embodiment 3

Shown in Fig. 3-1,3-2, the cone nut 2 and the tightening nut 3 of built-in spring washer screwed the combined type anti-theft nut that the built-in spring washer 6 that forms is installed;

Embodiment 4

As Fig. 4-1, shown in, the direct screw-in of combined type anti-theft nut Fig. 1 that cone nut 1 and tightening nut 3 are screwed has been installed in bolt 7 on the

iron plate

8,9 place of appearing, with spanner combined type anti-theft nut Fig. 1 is fastened on the bolt 7;

Embodiment 5

Shown in Fig. 4-2, in case when combined type anti-theft nut Fig. 1 was subjected to derotation power, tightening nut 3 came off immediately, stay just with the antitheft cone nut 1 of profile;

Embodiment 6

Shown in Fig. 5-1,5-2, change tightening nut 3 into lengthening tightening nut 4, the concrete enforcement that increases again behind the bowl-type Anti-theft washer is the same;

Embodiment 7

Shown in Fig. 6-1,6-2, centrum nut 1 is changed into insert behind the cone nut 2 of built-in spring washer spring washer 6 its concrete implement the same

The foregoing description limits the utility model never in any form, and all employings are equal to the technological scheme that mode obtained of replacement or equivalent transformation, all drop within the protection domain of the present utility model.

Claims

1. combined type anti-theft nut, it is characterized in that the spiral tooth that twines on two interior male cone (strobilus masculinus)s on cone external screw thread anti-theft nut and the tightening nut screws mutually is holistic modular nut, said cone external screw thread anti-theft nut profile is a truncated cone, twining the external spiral tooth on its conical surface, endoporus is the interior threaded hole that matches with external screw thread on the bolt, said tightening nut endoporus is for containing the female cone body cavity of cone external screw thread anti-theft nut, also twining the internal spiral tooth that matches with external spiral tooth on the cone external screw thread anti-theft nut on the cavity wall, screw in aggregatesly mutually, the nut front end is that rounded back end is a polygon.

2. combined type anti-theft nut according to claim 1 is characterized in that the external spiral tooth that twines on the cone external screw thread anti-theft nut male cone (strobilus masculinus) is consistent with internal spiral tooth sense of rotation on the tightening nut inner hole cone wall.