CN201344197Y

CN201344197Y - Novel theft prevention bolt and special sleeve

Info

Publication number: CN201344197Y
Application number: CNU2009200013398U
Authority: CN
Inventors: 查阿六; 顾自立
Original assignee: SUZHOU SHANLIAN HIGH-TENSION CONDENDER Co Ltd
Current assignee: SUZHOU SHANLIAN HIGH-TENSION CONDENDER Co Ltd
Priority date: 2008-09-27
Filing date: 2009-01-07
Publication date: 2009-11-11
Anticipated expiration: 2019-01-07

Abstract

The utility model provides a novel theft prevention bolt and a special sleeve for combined utilization with the theft prevention bolt, wherein the theft prevention bolt comprises a bolt and a protective cape, the end surface of the bolt is provided with a groove capable of being driven by the sleeve, and the bolt is engaged with the protective cap with clearance, which enables the bolt to self rotate inside the protective cap. The special sleeve comprises a connection portion and a sleeve head, the end surface of the sleeve head is provided with a projecting strip, and an outer outline of the projecting strip matches with an inner outline of the groove of the bolt. The utility model has the advantages of having simple structure, being capable of saving costs, reducing depletion by reusing bolts and having fine theft prevention effects because special tools must be used when demounted.

Description

Novel anti-theft bolt and socket wrench specially adapted for it

Technical field

The utility model relates to a kind of theft-prevention structure of bolt, and the special tool that mounts and dismounts this structure also is provided simultaneously.It is specially adapted to the use of electric power facility or communal facility such as transformer, road sign, guideboard etc.

Background technique

It is the common and general mode of structure that is widely used in mechanical structure, project installation etc. that bolt and nut connects, and installs on some electric power facilities or the communal facility.

With the electric power facility is example, electric power by the electric transmission line of various different electric pressures from the power station through being transported to each power consumer at a distance, the electric power transmission line capital equipment is by potential device, electric pole, compositions such as electric wire, electric pole generally is made up of the backguy of cement electric pole or iron tower and reinforcing thereof, because power circuit is on the way through the each province, the city county, places such as township, be characterized in that line length is wide, the remote mountain area of approach particularly, meagrely-populated place brings certain difficulty for the maintenance of power circuit, wherein a Zui Da difficult problem is exactly easily to be removed as the nut of power circuit fastening piece and the nut of electric power pylon, thereby make equipment such as transformer or iron tower parts stolen, also may cause power circuit to fall bar or iron tower and fall tower, cause the electric power line failure power outage, causing damage and make troubles for the people's life and national wealth, is the problem that people explore always so adopt effective theft-prevention structure on the bolt of installing connects.

At present, common antitheft mode have with nut weldering extremely on bolt or connected piece, destroy screw thread and prevent dismounting etc., but these similar modes total all belong to destructive, repair demolition is become, and difficulty, bolt replacement cycle are accelerated, cost increases; And when need changing,, just can't unload replacing because nut is welded extremely, bring difficulty to the power circuit plant maintenance.Chinese patent ZL93210420 discloses a kind of anti-theft bolt, but the bolt processed complex of this structure is difficult for producing in enormous quantities.

The model utility content

The purpose of this utility model is to solve above-mentioned technical problem, and a kind of simple in structure and reusable anti-theft bolt and socket wrench specially adapted for it thereof are provided.

The purpose of this utility model is achieved through the following technical solutions:

A kind of novel anti-theft bolt, comprise a bolt and a helmet, described bolt comprises bolt head and has externally threaded screw rod, and be arranged between the two shoulder, described bolt head end face is provided with the groove that can be driven by sleeve, is provided with a circumferential thrust groove between described bolt head and the shoulder; Described helmet comprises the body of a ring and is arranged on the end of this body one end, and the internal diameter of this end is less than the internal diameter of helmet body, and the end of described helmet is embedded in the thrust groove of bolt and both Spielpassung, makes the bolt can rotation in helmet.

Further, described groove is the plum blossom shape, by 5 smooth being formed by connecting of semicircular ring.

Again further, 5 of described groove semicircular ring are asymmetric setting.

The socket wrench specially adapted for it that a kind of and above-mentioned novel anti-theft bolt matching uses comprises a joint and a tube head, and the end face of described tube head is provided with a raised line, the interior profile phase coupling of the external frame of described raised line and the groove of bolt.

Further, described raised line is the plum blossom shape, by 5 smooth being formed by connecting of semicircular ring.

Again further, 5 of described raised line semicircular ring are asymmetric setting.

The beneficial effects of the utility model are mainly reflected in: simple in structure, screw bolt and nut can be reused, and saves cost and reduces the wastage.When dismounting, must use special-purpose instrument, so anti-theft effect is good.

Description of drawings

Below in conjunction with accompanying drawing technical solutions of the utility model are described further:

Fig. 1: the structural representation of the utility model bolt;

Fig. 2: the plan view of the utility model bolt;

The A of Fig. 3: Fig. 1 is to view;

Fig. 4: the structural representation of the utility model helmet;

Fig. 5: the structural representation after the utility model bolt and the helmet assembling;

Fig. 6: the sectional view after the utility model bolt and the helmet assembling;

Fig. 7: the structural representation of the utility model sleeve;

The B of Fig. 8: Fig. 7 is to view.

Wherein:

1 bolt, 11 outside threads, 12 bolt heads

13 grooves, 14 screw rods, 15 shoulders

16 thrust grooves, 2 helmets, 21 bodies

22 ends, 4 sleeves, 41 joints

42 tins 43 raised lines

Embodiment

The utility model has disclosed a kind of novel anti-theft bolt, comprises the bolt 1 and the helmet 2 that cooperatively interact.As shown in Figure 1 to Figure 3, bolt 1 comprises bolt head 12 and has the screw rod 14 of outside thread 11, and is arranged on shoulder 15 between the two, and described bolt head 12 end faces are provided with the groove 13 that can be driven by sleeve.Groove 13 described in the present embodiment is the plum blossom shape, by 5 smooth being formed by connecting of semicircular ring.And 5 semicircular ring of described groove 13 are asymmetric setting.In addition, be provided with a circumferential thrust groove 16 between described bolt head 12 and the shoulder 15.

As shown in Figure 4, helmet 2 comprises the body 21 of a ring and is arranged on the end 22 of these body 21 1 ends that the internal diameter of this end 22 is less than the internal diameter of helmet body 21.

As shown in Figure 5 and Figure 6, the bolt head 12 of bolt 1 is placed on the inside of helmet 2, and the end 22 of described helmet 2 is embedded in the thrust groove 16 of bolt 1 and both Spielpassung, makes the bolt 1 can rotation in helmet 2.Because the external diameter of bolt head 12 is greater than the internal diameter of the end 22 of helmet 2, and the internal diameter of the end 22 of helmet 2 is again less than the external diameter of bolt shoulder 15, and promptly the end 22 of helmet 2 is embedded in the thrust groove 16 of bolt 1, and bolt 1 can not deviate from from helmet 2.

The utility model adopts the nut of prior art, and promptly its inside is provided with the internal thread that matches with outside thread 11.Be placed between the end face of shoulder 15 of nuts and bolt 1 when fastener after, just can use the socket wrench specially adapted for it clamping bolt, and 2 of turn helmets can make helmet 2 rotations, bolt can not play any variation, has reached antitheft effect.

As shown in Figure 7 and Figure 8, the utility model has also disclosed the socket wrench specially adapted for it that a kind of and described novel anti-theft bolt matching uses, and comprises a joint 41 and tube 42, and the effect of joint 41 is in order to be connected with socket wrench.Described 42 end face is provided with a raised line 43, the interior profile phase coupling of the groove 13 of the external frame of described raised line 43 and bolt 1.In the present embodiment, described raised line 43 is the plum blossom shape, by 5 smooth being formed by connecting of semicircular ring.And 5 semicircular ring of described raised line 43 are asymmetric setting, and the asymmetric setting of its angle and groove 13 is thought etc.The reason of She Zhiing is like this, and a bolt can only turn with socket wrench specially adapted for it, and is difficult to make the spanner similar to socket wrench specially adapted for it by measuring when user mode, has better played antitheft effect.

The utility model still has multiple concrete mode of execution.For example: the shape of groove or raised line can also be other except the plum blossom shape, semicircle, square or the like.All employings are equal to replacement or equivalent transformation and all technological schemes of forming, all drop within the claimed scope of the utility model.

Claims

1. novel anti-theft bolt, it is characterized in that: comprise a bolt (1) and a helmet (2), described bolt (1) comprises bolt head (12) and has the screw rod (14) of outside thread (11), and be arranged between the two shoulder (15), described bolt head (12) end face is provided with the groove (13) that can be driven by sleeve, is provided with a circumferential thrust groove (16) between described bolt head (12) and the shoulder (15); Described helmet (2) comprises the body (21) of a ring and is arranged on the end (22) of these body (21) one ends, the internal diameter of this end (22) is less than the internal diameter of helmet body (21), the end (22) of described helmet (2) is embedded in the thrust groove (16) of bolt (1) and both Spielpassung, makes the bolt (1) can rotation in helmet (2).

2. novel anti-theft bolt according to claim 1 is characterized in that: described groove (13) is the plum blossom shape, by 5 smooth being formed by connecting of semicircular ring.

3. novel anti-theft bolt according to claim 2 is characterized in that: 5 semicircular ring of described groove (13) are asymmetric setting.

4. socket wrench specially adapted for it that uses with the described novel anti-theft bolt matching of claim 1, it is characterized in that: comprise a joint (41) and a tube head (42), the end face of described tube head (42) is provided with a raised line (43), the interior profile phase coupling of the groove (13) of the external frame of described raised line (43) and bolt (1).

5. socket wrench specially adapted for it according to claim 4 is characterized in that: described raised line (43) is the plum blossom shape, by 5 smooth being formed by connecting of semicircular ring.

6. socket wrench specially adapted for it according to claim 5 is characterized in that: 5 semicircular ring of described raised line (43) are asymmetric setting.