CN203743170U - Antitheft bolt of transmission tower - Google Patents
Antitheft bolt of transmission tower Download PDFInfo
- Publication number
- CN203743170U CN203743170U CN201420121367.4U CN201420121367U CN203743170U CN 203743170 U CN203743170 U CN 203743170U CN 201420121367 U CN201420121367 U CN 201420121367U CN 203743170 U CN203743170 U CN 203743170U
- Authority
- CN
- China
- Prior art keywords
- boss
- bolt
- cylinder head
- face
- top face
- 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
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 21
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model discloses an antitheft bolt of a transmission tower and belongs to the technical field of bolts. The antitheft bolt of the transmission tower comprises a cylinder head bolt body. A left boss and a right boss are arranged in the center of the top face of a cylinder head of the cylinder head bolt body, wherein the left boss and the right boss are in central symmetry with respective to the center of the top face. The upper right portion of the top face of the left boss is an angle smaller than or equal to 90 degrees, the right side edge of the angle is located on the left side of the vertical center line of the top face of the cylinder head and kept parallel to the left side of the vertical center line of the top face of the cylinder head, and the length of the right side edge of the angle is larger than or equal to the radius of the top face of the cylinder head. The upper right portion of the top face of the left boss is an angle smaller than or equal to 60 degrees. The left boss and the right boss are respectively provided with an outer surface matched with the outer circumference face of the top face of the cylinder head. The antitheft bolt is suitable for fastening connection of parts on a power transmission tower rod, can be tightened by a screwdriver and facilitates installation and construction of the power transmission tower rod. When the bolt is repaired, a matched special tool must be used for loosening the bolt, the bolt cannot be loosened by a common screwdriver or a wrench, bolts and other components of the power transmission tower rod can be effectively prevented from being stolen, and safe operation of an electric transmission line is guaranteed.
Description
Technical field
The utility model relates to bolt technical field.
Background technique
In patrolling transmission line process, often find that the tower material on overhead line structures is stolen, bring potential safety hazard to the safe operation of electric transmission line, bring safely very big harm to national wealth and people's lives.In prior art,
Often use a kind of anti-theft bolt of built-in roll structure; this anti-theft bolt often can occur while installation that ball comes off or the cracked bolt that makes of ball loses anti-theft feature; and because the phenomenon that bolton is not in place and can not oppositely back-out often occurs bolt quality problems, cause at the construction field (site) the tower material cannot be fastening.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of transmission tower anti-theft bolt, and having forward can tighten with screw-driver, oppositely must with the supporting feature that just can unclamp of specialized opener.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of transmission tower anti-theft bolt, comprise cylinder head bolt body, the socket cap end face of described cylinder head bolt body is provided with the left boss and the right boss that are centrosymmetric with respect to end face center; The upper right quarter of described left boss end face is the angle of≤90 °, and the right edge at described angle is positioned at left side the keeping parallelism of the vertical center line of socket cap end face, the radius of length >=socket cap end face of the right edge at angle.
The further improvement that the utility model is done is: the upper right quarter of described left boss end face is the angle of≤60 °.Described left boss and right boss are respectively equipped with the outer surface matching with the outer circumferential face of socket cap end face.
The beneficial effect that adopts technique scheme to produce is: the parts that the utility model is applicable on power transmission tower bar are fastenedly connected, and can tighten with screw-driver, facilitate the installation of power transmission tower bar.Maintenance must be unclamped with supporting special tool when bolt, can not unclamp with common screw-driver and spanner, can effectively prevent that the bolt of power transmission tower bar and parts are stolen, the safe operation of guarantee electric transmission line.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is cylinder head bolt body structure schematic diagram of the present utility model.
Fig. 2 is the right elevation of Fig. 1, represents embodiment 1 structure.
Fig. 3 is the right elevation of Fig. 1, represents embodiment 2 structure.
As shown in the figure: 1 socket cap end face, 2 left boss, 3 right boss, 4 jiaos.
Embodiment
Pair operation of the present utility model of contrast Fig. 1-3 is used step to be described further:
Embodiment 1: a kind of transmission tower anti-theft bolt, comprise cylinder head bolt body, and the socket cap end face 1 of described cylinder head bolt body is provided with the left boss 2 and the right boss 3 that are centrosymmetric with respect to end face center; The upper right quarter of described left boss 2 end faces is the angle 4 of≤90 °, and the right edge at described angle 4 is positioned at left side the keeping parallelism of the vertical center line of socket cap end face 1, the radius of length >=socket cap end face 1 of the right edge at angle 4.Described left boss 2 and right boss 3 are respectively equipped with the outer surface matching with the outer circumferential face of socket cap end face 1.The using method of the present embodiment: this bolt adopts middle-carbon steel quenching with Subsequent tempering.Anti-theft bolt when mounted, stretches into the plane between left boss 2 and right boss 3 by the head of screw-driver, and anti-theft bolt is tightened in dextrorotation.Can supporting special Wrench for opening when unlatching, the head of this special spanner is provided with and left boss 2 and the suitable profile of right boss 3, can block the left-handed anti-theft bolt that unclamps of socket cap end face 1.If with common screw-driver or screw wrench, can not unclamp this anti-theft bolt.
Embodiment 2: a kind of transmission tower anti-theft bolt, comprise cylinder head bolt body, and the socket cap end face 1 of described cylinder head bolt body is provided with the left boss 2 and the right boss 3 that are centrosymmetric with respect to end face center; The upper right quarter of described left boss 2 end faces is the angle 4 of≤90 °, and the right edge at described angle 4 is positioned at left side the keeping parallelism of the vertical center line of socket cap end face 1, the radius of length >=socket cap end face 1 of the right edge at angle 4.The upper right quarter of described left boss 2 end faces is the angle of≤60 °.Described left boss 2 and right boss 3 are respectively equipped with the outer surface matching with the outer circumferential face of socket cap end face 1.The using method of the present embodiment: this bolt adopts middle-carbon steel quenching with Subsequent tempering.Anti-theft bolt when mounted, stretches into the plane between left boss 2 and right boss 3 by the head of screw-driver, and anti-theft bolt is tightened in dextrorotation.Can supporting special Wrench for opening when unlatching, the head of this special spanner is provided with and left boss 2 and the suitable profile of right boss 3, can block the left-handed anti-theft bolt that unclamps of socket cap end face 1.If with common screw-driver or screw wrench, can not unclamp this anti-theft bolt.
Claims (3)
1. a transmission tower anti-theft bolt, is characterized in that: comprise cylinder head bolt body, the socket cap end face (1) of described cylinder head bolt body is provided with the left boss (2) and the right boss (3) that are centrosymmetric with respect to end face center; The upper right quarter of described left boss (2) end face is the angle (4) of≤90 °, and the right edge of described angle (4) is positioned at left side the keeping parallelism of the vertical center line of socket cap end face (1), the radius of length >=socket cap end face (1) of the right edge of angle (4).
2. a kind of transmission tower anti-theft bolt according to claim 1, is characterized in that: the upper right quarter of described left boss (2) end face is the angle of≤60 °.
3. a kind of transmission tower anti-theft bolt according to claim 1 and 2, is characterized in that: described left boss (2) and right boss (3) are respectively equipped with the outer surface matching with the outer circumferential face of socket cap end face (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121367.4U CN203743170U (en) | 2014-03-18 | 2014-03-18 | Antitheft bolt of transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121367.4U CN203743170U (en) | 2014-03-18 | 2014-03-18 | Antitheft bolt of transmission tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743170U true CN203743170U (en) | 2014-07-30 |
Family
ID=51342974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420121367.4U Expired - Fee Related CN203743170U (en) | 2014-03-18 | 2014-03-18 | Antitheft bolt of transmission tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743170U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730299A (en) * | 2018-04-27 | 2018-11-02 | 国家电网公司 | A kind of transmission tower anti-theft nut |
-
2014
- 2014-03-18 CN CN201420121367.4U patent/CN203743170U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730299A (en) * | 2018-04-27 | 2018-11-02 | 国家电网公司 | A kind of transmission tower anti-theft nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140730 Termination date: 20200318 |