CN203251017U

CN203251017U - Insulation ladder tail end fixing device

Info

Publication number: CN203251017U
Application number: CN 201320235140
Authority: CN
Inventors: 王红卫; 方守盛; 侯志锋; 谢强; 吕怀涛; 侯亚波
Original assignee: JINZHONG POWER SUPPLY COMPANY SHANXI ELECTRIC POWER Co
Current assignee: JINZHONG POWER SUPPLY COMPANY SHANXI ELECTRIC POWER Co
Priority date: 2013-05-04
Filing date: 2013-05-04
Publication date: 2013-10-23
Anticipated expiration: 2023-05-04

Abstract

The utility model discloses an insulation ladder tail end fixing device. The insulation ladder tail end fixing device comprises two ladder head clamps which are fixed with the tail end of an insulation ladder and iron tower fixing devices which are connected with the ladder head clamps. The two ladder head clamps are fixed on a ladder hanging shaft. The iron tower fixing devices are double hook fixing devices. Each hook is composed of a hook sleeve which is sheathed on the ladder hanging shaft and a hook which is fixed on the hook sleeve, wherein the hook is composed of a column and an inclined hook at the upper part, and an angle r between the inclined hook and the column is 135 degrees. The insulation ladder tail end fixing device provided by the utility model has the advantages that due to the fact that a transmission iron tower in China is made of the material of angle iron and is cross-shaped, a square hook of an inclined angle of 135 degrees is matched with a tower frame; the ladder head clamps on two sides are connected together through the ladder hanging shaft, so that a ladder can be firmly erected; the iron tower fixing devices use double hook devices, so that device installation and disassembly are very simple and carrying is convenient; especially after the two hooks are reversely arranged, firm installation on the iron tower is realized and the phenomenon of unhooking is avoided; and limiting nuts ensure that the hook sleeves do not shift when in use, which improves the safety and the durability of the device.

Description

Insulated ladder tail end fixture

Technical field

The utility model relates to a kind of high voltage transmission line live work instrument, particularly a kind of insulated ladder tail end fixture.

Background technology

When hot line maintenance enters highfield, " flat terraced method " is the higher method of utilization rate, need flat ladder also fixing between wire and steel tower during operation, flat ladder bundlees with rope usually in steel tower one side, such fixing means is not only wasted time and energy, tie up the situations such as not firm, becoming flexible just might appear in flat ladder, inclination are slightly arranged, work high above the ground personnel's safety is constituted a threat to.The disclosed a kind of Antiskid insulated flat ladder of Chinese patent CN201137455Y, although used Universal joint and on it design of draw-in groove ladder can be fixed on the angle bar of steel tower, but the fixed form stability fastening with draw-in groove is not enough, rotating shaft on the Universal joint has reduced the stability of ladder, and load-bearing is very large in the practical operation of " flat terraced method ", very easily cause damage, increased use cost, bring potential safety hazard to construction operation.

Summary of the invention

For the deficiencies in the prior art, the utility model provides a kind of insulated ladder tail end fixture.

The technical solution adopted in the utility model is: a kind of insulated ladder tail end fixture, comprise for fixing two the ladder jigs of insulated ladder tail end, the steel tower fixture that is connected with a ladder jig, it is characterized in that described two ladder jigs are fixed on the flat terraced suspended axle, described steel tower fixture is the double hook fixture.

Described insulated ladder tail end fixture is characterized in that what described double hook fixture was comprised of two steel towers hook in the inboard that is arranged at respectively two ladder jigs or the outside.

Described insulated ladder tail end fixture, it is characterized in that described steel tower hook is by being socketed in the hook sleeve pipe on the flat terraced suspended axle and being fixed on that hook on the hook sleeve pipe consists of, described hook is comprised of the oblique hook on column and top, and the angle r between between described oblique hook and column is 135 °.

Described insulated ladder tail end fixture is characterized in that described two hooks oppositely arrange, and described hook sleeve pipe inboard is provided with stop nut.

The beneficial effects of the utility model are: because the electric power pylon material therefor of China is angle steel, and shape mostly is " ten " word chiasma type, therefore the square hook at 135 ° of oblique angles just in time can mate with pylon, a both sides ladder jig is connected as a single entity by a flat terraced suspended axle, can makes firm the setting up of ladder.The steel tower fixture is adopted the double hook device, so that equipment is installed with dismounting is all very simple, be easy to carry, after particularly two hooks oppositely being arranged, be installed on the steel tower very firmly, can not produce the unhook phenomenon.Guarantee that by stop nut the hook sleeve pipe does not produce displacement in use, has increased fail safe and the durability degree of equipment.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is steel tower hook structure schematic diagram;

Fig. 3 is the left view of Fig. 2;

Fig. 4 ladder jig places the use view in the steel tower hook outside;

Fig. 5 ladder jig places the inboard use view of steel tower hook.

Among the figure, 1-steel tower hook, 2-puts down terraced suspended axle, a 3-ladder jig, 4-puts down terraced longeron, 5-jig bolt, 6-puts down terraced crossbeam, and 7-links up with sleeve pipe, 8-hook, 9-column, the oblique hook of 10-, 11-stop nut, 12-steel tower.

Embodiment

Shown in Figure 1, insulated ladder tail end fixture of the present utility model comprises two ladder jigs 3 that are fixed on flat terraced longeron 4 tail ends, the top of these two ladder jigs is fixed on the two ends of putting down terraced suspended axle 2 by nut, and the inboard of two jigs or the outside are respectively arranged with steel tower hook 1 on flat terraced suspended axle.There is jig bolt 5 lower end of a ladder jig.Also has flat terraced crossbeam 6 among the figure.

Shown in Fig. 2-3, steel tower hook 1 is linked up with sleeve pipe 7 and is fixed on the hook 8 of linking up with on the sleeve pipe 7 by the bottom and consists of.Wherein link up with 8 and be comprised of two parts, the bottom is the column 9 fixing with hook sleeve pipe 7, is oblique hook 10 on column 9 tops, and angle is 135 degree between described oblique hook 10 and column, and its wrap direction is the outside axial line of flat terraced suspended axle 2.Two hooks are socketed on the flat terraced suspended axle by sleeve pipe 7, also have stop nut 11 in a side of sleeve pipe.Two hook setting parties on flat terraced suspended axle spend to being mutually 180.

Shown in Figure 4 is a use state of the present utility model, when the close 12 liang of angle bar crosspoints of steel tower of flat terraced hanging position, can select two hooks are arranged at a ladder jig inboard.Inboard fixing with stop nut 11 at sleeve pipe.

Shown in Figure 5 is another active state embodiment of the present utility model, when flat terraced hanging position is far away apart from the crosspoint of 12 liang of angle bar of steel tower, can select two hooks are placed the outside of a ladder jig, and at this moment, outside of sleeve is fixed with stop nut.

In order to adapt to any hanging position, can select the flat terraced suspended axle of different length.

Claims

1. insulated ladder tail end fixture, comprise for fixing two the ladder jigs (3) of insulated ladder tail end, the steel tower fixture that is connected with a ladder jig (3), it is characterized in that described two ladder jigs (3) are fixed on the flat terraced suspended axle (2), described steel tower fixture is the double hook fixture.

2. insulated ladder tail end fixture according to claim 1 is characterized in that what described double hook fixture was comprised of two steel towers hooks (1) in the inboard that is arranged at respectively two ladder jigs (3) or the outside.

3. insulated ladder tail end fixture according to claim 2, it is characterized in that described steel tower hook is by being socketed in the hook sleeve pipe (7) on the flat terraced suspended axle and being fixed on that hook (8) on the hook sleeve pipe (7) consists of, described hook (8) is comprised of the oblique hook (10) on column (9) and top, and the angle r between described oblique hook (10) and column between (9) is 135 °.

4. insulated ladder tail end fixture according to claim 3 is characterized in that described two hooks (8) oppositely arrange, and described hook sleeve pipe (7) inboard is provided with stop nut (11).