CN2259457Y

CN2259457Y - Power-line tower

Info

Publication number: CN2259457Y
Application number: CN 94205236
Authority: CN
Inventors: 陶威
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-01
Filing date: 1994-04-01
Publication date: 1997-08-13
Anticipated expiration: 2004-04-01

Abstract

The utility model relates to a power-line rod tower which is provided with the classes of a cement rod tower and an iron tower. The cement rod tower or the iron tower is composed of a cement rod, iron accessories (a cross arm of a cement rod, a cross beam, a fork beam, an anchor ear and tower materials of the iron tower) and a fastener. The iron accessories adopt high-gloss cold enamel coating to be brushed on corrosion-proof coating iron accessories (1), the surfaces of which are corrosion-proof. The lower part of the tower is assembled by an antitheft fastener which is composed of a bolt (2) with a key groove, a key and a nut. Therefore, the iron accessories have less maintenance workloads in anticorrosion treatment and lower operation cost compared with painting. Compared with hot galvanizing, a hot galvanizing melted zinc saving facility and fuel are saved, and the utility model has a lower price compared with zinc. The utility model can prevent a person from standing on the ground to screw off the nut of the fastener with a wrench to the iron accessories of the power-line tower.

Description

Electric power line pole tower

The utility model relates to a kind of electric power line pole tower.

The cement shaft tower and the iron tower of present power circuit, respectively by cement pole, iron fitting (cross-arm of cement shaft tower, crossbeam, fork beam, the tower material of anchor ear and iron tower) is dressed up by design team with securing member.Two kinds of anticorrosion employing mopping of iron fitting or galvanizings, the lacquer of brush easily comes off, and maintenance workload is big, the operating cost height, galvanizing needs more molten zinc facility, needs with the fuel molten zinc of heating, the price height of zinc; On the female bolt of the list of shaft tower bottom, be coated with lead oil or beat and dash two places at relative position, in case nut loosening, and the people stands in and can back out nut with spanner on the ground, the theft iron fitting.

The purpose of this utility model provides a kind of electric power line pole tower, and its iron fitting preservative treatment is easy, and expense is low, and maintenance workload is few; And can prevent that the people from standing in the nut of backing out securing member on the ground with spanner, the theft iron fitting.

The purpose of this utility model is achieved in that it includes tower bar and iron fitting.Iron fitting is connecting the tower bar, and iron fitting links to each other with the tower bar by securing member, and securing member includes band keyway bolt (2), the anti-theft type securing member that key and nut constitute, and the screw thread of band keyway shank of bolt partly is that the keyway isometric with screw buckle arranged.

Because adopt such scheme, the anti-theft type securing member of electric power line pole tower bottom can prevent that the people from standing on the ground, back out the nut of securing member, the iron fitting of theft electric power line pole tower with spanner.The preservative treatment of anticorrosion with coat iron fitting, little than the mopping maintenance, operating cost is low, economizes molten zinc facility and fuel than galvanizing, and is low than the zinc price.

Below in conjunction with two class shaft tower pattern drawings and Examples the utility model is further specified:

Fig. 1 is 18 meters power circuit π type cement shaft tower schematic diagrames.

Fig. 2 is an A drawing among Fig. 1.

Fig. 3 is a font iron tower schematic diagram on 18 meters power circuits.

Fig. 4 is a B drawing among Fig. 3.

Fig. 5 is a band keyway bolt front view, left view.

Fig. 6 is the front view of key, left view.

1. anticorrosion with coat iron fittings, 2. band keyway bolts among the figure

3. General fasteners 4. keyways 5. turret heads 6. cement poles

A kind of electric power line pole tower (cement shaft tower and iron tower), include tower bar and iron fitting (crossbeam of cement shaft tower, horizontal mutually, the tower material of fork beam, anchor ear and iron tower) iron fitting is the anticorrosion with coat iron fitting.Iron fitting links to each other with the tower bar by securing member.Securing member includes: band keyway bolt (2), key links to each other with the tower bar by the anti-theft type securing member with the anti-theft type securing member shaft tower bottom iron fitting that nut constitutes.

18 meters power circuit π type cement shaft tower embodiment use General fasteners (3) to anticorrosion with coat iron fitting (1) (crossbeam, fork beam upper end anchor ear) by design drawing shown in the figure one, are assembled in the top of cement pole (6).Again anticorrosion with coat iron fitting (1) (fork beam lower end, anchor ear) is assembled in the bottom of cement pole with the anti-theft type securing member.The key of anti-theft type securing member is behind its nut screwing clamping, and with its keyway (4) along band keyway bolt (2), riveting is gone between the bolts and nuts, imbeds in the nut and does not expose.

Font iron tower embodiment on 18 meters power circuits shown in Figure 3, be by design drawing with the anticorrosion with coat iron fitting (1) (tower material) on iron tower bottom (more than ground four meters scope in partly) with the assembling of anti-theft type securing member.Its key be at the nut of anti-theft type securing member after tightening for the second time on the iron tower, it is gone between the bolts and nuts along keyway (4) riveting of band keyway bolt (2), imbed in the nut and do not expose.The anticorrosion with coat iron fitting (1) (tower material) on iron tower top is assembled with General fasteners (3).

Anticorrosion with coat iron fitting (1) in Fig. 1 and Fig. 3, be after steel are tailored by the iron fitting design size, derusting by sandblasting, using by cross-linked polymer synthetic resin under the normal temperature is main film forming substance, high-bright cold enamel paint so that multiple filler is mixed with is painted on the surface, dry 40 hours, the coating bone dry, film-forming.

The high-bright cold enamel paint price only is about 1/4th of a zinc, and its performance is seen Appendix, and " word No. 93087 survey report in Tianjin product quality supervision and inspection the 21st station (c) known; this paint adhesion is strong; film-forming under the normal temperature hardness of film height, good toughness by report.

When the power circuit iron tower was 18 meters high, band keyway bolt shown in Figure 5 was M16 * 45 types, and its keyway (4) is the screw thread part at bolt, and isometric with screw buckle is 32 millimeters.The degree of depth is that 2.15 times of pitch are got 4.3 millimeters, and width is that 2.5 times of pitch are got 5 millimeters.Its length of key shown in Figure 6 is preferably got 12 millimeters less than the thickness of nut, and width is that 2.5 times of pitch are got 5 millimeters, highly is that 2.5 times of pitch are got 5 millimeters, and its end face is the garden cambered surface, and the garden arc dia is got 14.6 millimeters less than the pitch diameter of thread.

Claims

1, a kind of electric power line pole tower includes tower bar and iron fitting, and iron fitting is connecting the tower bar, it is characterized in that: iron fitting links to each other with the tower bar by securing member.Securing member includes: band keyway bolt (2), and the anti-theft type securing member that key and nut constitute, the threaded portion of band keyway shank of bolt is that the keyway isometric with screw buckle arranged.

2, according to the electric power line pole tower of claim 1, be characterised in that: described iron fitting is anticorrosion with coat iron fitting (1), be to be main film forming substance with cross-linked type macromolecule synthetic resin, the high-bright cold enamel paint that is mixed with multiple auxiliary agent and various filler, be painted on the iron fitting surface anticorrosion, iron fitting is meant the tower material of cross-arm, crossbeam, fork beam, anchor ear and the iron tower of cement shaft tower.

3, according to the electric power line pole tower of claim 1, be characterised in that: described anti-theft type securing member, the keyway (4) of its band keyway bolt (2) is isometric at the threaded portion and the screw buckle of bolt, and the degree of depth is 2.15 times of pitch, and width is 2.5 times of pitch.The height of key is 2.5 times of pitch, and end face is an arc surface, and arc diameter is less than the pitch diameter of thread, and length is less than the thickness of nut, and width is 2.5 times of pitch.