CN207569028U - A kind of steel tower with anti-theft feature - Google Patents

A kind of steel tower with anti-theft feature Download PDF

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Publication number
CN207569028U
CN207569028U CN201721600854.9U CN201721600854U CN207569028U CN 207569028 U CN207569028 U CN 207569028U CN 201721600854 U CN201721600854 U CN 201721600854U CN 207569028 U CN207569028 U CN 207569028U
Authority
CN
China
Prior art keywords
bolt
nut
steel tower
stepped hole
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201721600854.9U
Other languages
Chinese (zh)
Inventor
万小华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yunnan Huacheng Electric Power Equipment Co Ltd
Original Assignee
Yunnan Huacheng Electric Power Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yunnan Huacheng Electric Power Equipment Co Ltd filed Critical Yunnan Huacheng Electric Power Equipment Co Ltd
Priority to CN201721600854.9U priority Critical patent/CN207569028U/en
Application granted granted Critical
Publication of CN207569028U publication Critical patent/CN207569028U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model is related to equipment for power transmission and distribution fields.It is designed to provide a kind of steel tower with anti-theft feature that bolt can be prevented to be disassembled.Technical solution is used by the utility model:A kind of steel tower with anti-theft feature, the section bar including forming steel tower main body and the antitheft tightening assembly for connection section bar, antitheft tightening assembly include bolt, nut and with screwing head.The outer rim of bolt head is in regular hexagon, and the outer rim of nut is rounded, and the outer rim for screwing head is in regular hexagon.The one side for screwing head is uniformly arranged multiple double wedges in a ring, and the position that the one side of nut corresponds to double wedge is uniformly arranged multiple grooves.The both ends of the surface of groove are in the inclined-plane to bounce back to notch direction, and the both ends of the surface of double wedge are also matched in inclined-plane and with the both ends of the surface of groove.The size of groove notch is more than the size of double wedge tooth top.The utility model effectively can prevent bolt to be disassembled, and then ensure the anti-theft performance of steel tower.

Description

A kind of steel tower with anti-theft feature
Technical field
The utility model is related to equipment for power transmission and distribution field, more particularly to a kind of steel tower with anti-theft feature.
Background technology
High-voltage power transmission tower is a kind of equipment widely used in electrical power trans mission/distribution system, since high-voltage power transmission tower is erected at room Outside, long-term unattended, antitheft problem is always a critical issue of this field.Existing steel tower is usually by several steel It is spliced to form, is bolted between steel and steel.However criminal has one's head turned by greed, it is simple using spanner screwdriver etc. Tool removes bolt, and theft steel sell scrap iron.This not only causes huge economic damage, has also buried great safety Hidden danger.
Invention content
The purpose of this utility model is to provide a kind of steel towers with anti-theft feature that bolt can be prevented to be disassembled.
For achieving the above object, technical solution is used by the utility model:A kind of iron with anti-theft feature Tower, the section bar including forming steel tower main body and the antitheft tightening assembly for connection section bar, the antitheft tightening assembly include spiral shell Bolt, nut and with screwing head;The outer rim of the bolt head is in regular hexagon, and the outer rim of the nut is rounded, described to screw The outer rim of head is in regular hexagon;The first stepped hole and the second stepped hole be set respectively on the section bars of two interconnections, described the The bar portion of the small size Duan Junyu bolts of one stepped hole and the second stepped hole matches, the first stepped hole and the second stepped hole it is big Size section matches respectively with the head of bolt and nut;
The one side for screwing head is uniformly arranged multiple double wedges in a ring, and the position that the one side of the nut corresponds to double wedge is equal The even multiple grooves of setting;The both ends of the surface of the groove are in the inclined-plane to bounce back to notch direction, and the both ends of the surface of the double wedge are also in oblique It face and is matched with the both ends of the surface of groove;The size of the groove notch is more than the size of double wedge tooth top.
Preferably, the centrally disposed resigning through-hole for screwing head, the size of the resigning through-hole are more than bolt shank Size.
Preferably, it is described screw head and be provided with the one side of double wedge be also bonded with magnetic plastic layer.
The beneficial effects of the utility model embody a concentrated reflection of, and effectively bolt can be prevented to be disassembled, and then ensure steel tower Anti-theft performance.Specifically, in use, the section bar for forming steel tower is carried out tightly the utility model by screw bolt and nut Gu during fastening, the bar portion of bolt is passed through into the first stepped hole and the second stepped hole first, and its head is made to receive completely It is contained in the circumferential direction clamping realized in the large scale section of the first stepped hole to bolt head.Then nut is set in the bar portion of bolt On, setting reeded one faces outwardly, and rotates nut by hand and is tentatively tightened, until nut generally enters the second stepped hole Large scale section in and when being not easy to be turned with hand, by the one side for screwing headband double wedge close to nut, double wedge is made to be caught in groove. Then it is clamped using allen wrench, vice etc. and screws head and rotated.Head is screwed during rotation, double wedge drives spiral shell Mother rotation, turn to always nut completely into the large scale section of the second stepped hole and fasten in place, will finally screw head and take Under take away.Since criminal using conventional tool can not be taken out nut, the utility model can effectively be prevented Only bolt is disassembled, and improves the anti-theft performance of steel tower, and easy to use.
Description of the drawings
Fig. 1 is the structure diagram of the utility model before assembling;
Fig. 2 is the structure diagram of the utility model after assembling;
Fig. 3 is the structure diagram of nut;
Fig. 4 is the structure diagram for screwing head;
Fig. 5 is the structure diagram of groove and double wedge.
Specific embodiment
A kind of steel tower with anti-theft feature with reference to shown in Fig. 1-5, including forming the section bar 1 of steel tower main body and for even The antitheft tightening assembly of direct type material 1, that is to say, that be made up of and connect antitheft tightening assembly between the section bar 1 of the utility model. The antitheft tightening assembly includes bolt 2, nut 3 and with screwing first 4.As shown in Figure 1, the outer rim on 2 head of bolt is in just Hexagon, as shown in figure 3, the outer rim of the nut 3 is rounded, as shown in figure 4, first 4 outer rim of screwing is in regular hexagon. The first stepped hole 5 and the second stepped hole 6, first stepped hole 5 and second-order are set respectively on the section bar 1 of two interconnections The bar portion of the small size Duan Junyu bolts 2 in terraced hole 6 matches, the large scale section of the first stepped hole 5 and the second stepped hole 6 respectively with The head of bolt 2 and nut 3 match.That is the large scale section of the first stepped hole 5 is in regular hexagon, the second ladder 6 Large scale section is rounded.
First 4 one side of screwing is uniformly arranged multiple double wedges 7 in a ring, and the one side of the nut 3 corresponds to the position of double wedge 7 It puts and is uniformly arranged multiple grooves 8.As shown in figure 5, the both ends of the surface of the groove 8 are in the inclined-plane to bounce back to notch direction, that is, Say that groove 8 is overall in the closing in shape reduced to notch direction.The both ends of the surface of the double wedge 7 also in inclined-plane and with the both ends of groove 8 Face matches, it is ensured that during rotation, both ends of the surface that can be adequately with groove 8 are in contact double wedge 7, imitate torque drive Rate higher.The size of 8 notch of groove is more than the size of 7 tooth top of double wedge, that is to say, that the minimum position of groove 8 is more than double wedge 7 maximum position, so that it is guaranteed that double wedge 7 can smoothly be inserted or pulled out groove 8.
In use, the section bar 1 for forming steel tower is fastened the utility model by bolt 2 and nut 3, is being fastened During, the bar portion of bolt 2 is passed through into the first stepped hole 5 and the second stepped hole 6 first, and its head is made to be accommodated in the completely It is realized in the large scale section of one stepped hole 5 and the circumferential direction on 2 head of bolt is clamped.Then nut 3 is set in the bar portion of bolt 2 On, the one of setting fluted 8 faces outwardly, and rotates nut 3 by hand and is tentatively tightened, until nut 3 generally enters second-order When in the large scale section in terraced hole 6 and being not easy to be turned with hand, first 4 one sides with double wedge 7 will be screwed close to nut 3, block double wedge 7 Enter in groove 8.Then it is clamped using allen wrench, vice etc. and screws first 4 and rotated.Screw first 4 rotation process In, double wedge 7 drives nut 3 to rotate, and turns to nut 3 always completely into the large scale section of the second stepped hole 6 and being fastened to Position will finally screw first 4 and remove and take away.Since criminal using conventional tool can not be taken out nut 3, this Utility model can effectively prevent bolt 2 to be disassembled, and improve the anti-theft performance of steel tower, and easy to use.Due to bolt 2 Often length is long for bar portion, and for the ease of installation, better way is, it is described screw first 4 centrally disposed resigning through-hole 9, institute The size for stating resigning through-hole 9 is more than the size of 2 bar portion of bolt.In addition, in order to easily facilitate operation, better way is, described It screws first 4 one sides for being provided with double wedge 7 and is also bonded with magnetic plastic layer 10, the adsorbable firmly nut 3 of magnetic plastic layer 10 facilitates peace Dress and positioning.

Claims (3)

1. a kind of steel tower with anti-theft feature, it is characterised in that:Section bar including forming steel tower main body(1)With for connecting-type Material(1)Antitheft tightening assembly, the antitheft tightening assembly include bolt(2), nut(3)With with screwing head(4);The bolt (2)The outer rim on head is in regular hexagon, the nut(3)Outer rim it is rounded, it is described to screw head(4)Outer rim be in positive six side Shape;The section bar of two interconnections(1)It is upper that first stepped hole is set respectively(5)With the second stepped hole(6), first stepped hole (5)With the second stepped hole(6)Small size Duan Junyu bolts(2)Bar portion match, the first stepped hole(5)With the second stepped hole (6)Large scale section respectively with bolt(2)Head and nut(3)It matches;
It is described to screw head(4)One side be uniformly arranged multiple double wedges in a ring(7), the nut(3)One side correspond to double wedge(7) Position be uniformly arranged multiple grooves(8);The groove(8)Both ends of the surface be in the inclined-plane that bounces back to notch direction, the double wedge (7)Both ends of the surface also be in inclined-plane and and groove(8)Both ends of the surface match;The groove(8)The size of notch is more than double wedge(7) The size of tooth top.
2. the steel tower according to claim 1 with anti-theft feature, it is characterised in that:It is described to screw head(4)Center set Put resigning through-hole(9), the resigning through-hole(9)Size be more than bolt(2)The size of bar portion.
3. the steel tower according to claim 2 with anti-theft feature, it is characterised in that:It is described to screw head(4)It is provided with convex Tooth(7)One side be also bonded with magnetic plastic layer(10).
CN201721600854.9U 2017-11-27 2017-11-27 A kind of steel tower with anti-theft feature Expired - Fee Related CN207569028U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721600854.9U CN207569028U (en) 2017-11-27 2017-11-27 A kind of steel tower with anti-theft feature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721600854.9U CN207569028U (en) 2017-11-27 2017-11-27 A kind of steel tower with anti-theft feature

Publications (1)

Publication Number Publication Date
CN207569028U true CN207569028U (en) 2018-07-03

Family

ID=62692372

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721600854.9U Expired - Fee Related CN207569028U (en) 2017-11-27 2017-11-27 A kind of steel tower with anti-theft feature

Country Status (1)

Country Link
CN (1) CN207569028U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112228440A (en) * 2020-10-09 2021-01-15 嘉兴钰丰汽车零部件有限公司 Conical nut convenient to dismantle
CN114810792A (en) * 2022-05-06 2022-07-29 国网河南省电力公司汝阳县供电公司 Anti-theft nut and bolt on power equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112228440A (en) * 2020-10-09 2021-01-15 嘉兴钰丰汽车零部件有限公司 Conical nut convenient to dismantle
CN114810792A (en) * 2022-05-06 2022-07-29 国网河南省电力公司汝阳县供电公司 Anti-theft nut and bolt on power equipment

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180703