CN2362216Y

CN2362216Y - Cable bridge trough

Info

Publication number: CN2362216Y
Application number: CN 99204953
Authority: CN
Inventors: 裘樟樵; 寿鑫泉; 秦福建
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-05
Filing date: 1999-03-05
Publication date: 2000-02-02
Anticipated expiration: 2009-03-05

Abstract

The utility model relates to a cable bridge trough with O-shaped ladder edges for the indoor and outdoor overhead cable laying of industrial and mining industries and the cable laying of underground engineering and tunnel engineering. A ladder frame is fixedly connected by two hollow ladder edges with O-shaped section and a plurality of circular pipe type steps lined with equal distance. The ladder frame is inserted into the labber edges to form the cable bridge trough with O-shaped ladder edges through a direct-through connecting member, or a horizontal connecting member with an angle of 135 DEG, or vertical connecting member with an angle of 135 DEG, or a connecting member with variable angle or a terminal connecting member. The utility model has the advantages of favorable mechanics stability, smooth surface, free dead angle, convenient antiseptic treatment, long service life, and quick installation, and solves the problems of system ground, etc.

Description

O type ladder limit cable testing bridge

The utility model relates to a kind of O type ladder limit cable testing bridge, is a kind ofly to be rolled into the cable testing bridge that the ladder the O type ladder limit of hollow made is formed by connecting through connector by steel plate.Be applicable to built on stilts the laying of indoor and outdoor cable of industrial and mining enterprises such as oil refining, chemical industry, weaving, machinery, metallurgy, electric power, TV, broadcasting; Also be applicable to underground works, as laying of cable in subway, civil air defense constructions and installations, the Tunnel Engineering.

The existing individual layer steel plate pressed section of adopting is],

There is following problem in the general cable testing bridge that make on the terraced limit of shape:

1. force-bearing situation is bad, thereby span can not be big, and span is big more, is out of shape big more;

2. preservative treatment difficulty, and terraced limit regular meeting's generation torsional deformation when galvanizing are easily scrapped;

3. for a long time, the ladder surface is coated with organic coating and when being interconnected into crane span structure, is difficult to solve the problem with grounding of total system.

In order to address the above problem, the utility model provides a kind of O type ladder limit cable testing bridge.

Task of the present utility model is finished like this: ladder is the terraced limit of O type by two hollows, cross sections and several pipe steps of uniformly-spaced being provided with are connected forms, and can connect into O type ladder limit cable testing bridge through connector by several ladders according to the position of using cable testing bridge and apart from situation.

The utility model has the advantages that: 1. because its mechanical stability of cable ladder that O type ladder limit constitutes is good, and the load performance of cable testing bridge improves, the span of same specification crane span structure is increased, and, under same operating mode, can save material because stress concentrates on material surface; 2. because hollow O type is adopted in cross section, terraced limit, step employing garden pipe, smooth surface does not have the dead angle, being convenient to the crane span structure surface anticorrosion handles: be convenient to surface preparation and coating and handle, the ladder limit is indeformable when galvanizing, and when organic materials such as surface coating fiberglass, resin formed the composite products of metal and organic material, the crane span structure antiseptic property greatly improved, thereby can improve 5～10 times useful life, and kept the intensity and the electrical property of metal crane span structure; 3. adopt the connector of material such as aluminium alloy, make quick for installationly, convenient, the construction period shortens; 4. when connecting between ladder, peg graft for metal in connector and the terraced limit, solved problem with grounding naturally,, then can further improve the intensity on terraced limit as filling foamed plastic in the cavity of terraced limit.

Fig. 1 a is that the utility model ladder limit cross sectional shape is asymmetric oblate schematic diagram, Fig. 1 b is that terraced limit cross sectional shape is oblate schematic diagram, Fig. 1 C is that terraced limit cross sectional shape is oval schematic diagram, Fig. 2 is straight-through connection of the utility model and terminal connecting structure partial exploded view, Fig. 3 is the vertical 135 ° of angle syndeton partial exploded view of the utility model, Fig. 4 is 135 ° of angles of the utility model level syndeton partial exploded view, and Fig. 5 is the utility model variable angle syndeton schematic diagram.

In conjunction with the accompanying drawings structure of the present utility model and embodiment are described as follows:

It is asymmetric oblate pipe 11 that ladder is the O type by two hollow sections, or the terraced limit 1 of oblate pipe 12 or oval pipe 13 and several pipe steps 2 of uniformly-spaced being provided with are connected and form, in aluminium alloy connector 3 and ladder are lateral opening, peg graft between ladder and constitute O type ladder limit cable testing bridge, the contour dimension of connector step is slightly larger than the contour dimension on O type ladder limit, the connecting plate of step both sides is arranged to interior thickness and terraced limit size b is sliding fit, upper and lower side gabarit length and terraced limit size H-2 δ are sliding fit, be respectively equipped with slotted hole on the connecting plate, back and the terraced limit respective aperture of pegging graft is connected through bolt, and two connecting plate slotted hole center lines of connector are 180 ° of angles and are straight-through connector 31; Be the curve sealing-in between two steps, two connecting plate slotted hole center lines are the connector 32 at vertical 135 ° of angles; The connector 33 that is 135 ° of angles of level; Be arranged to hinge-like between two steps; the connector 34 of two connecting plate slotted hole centreline space variable-angles; the cable testing bridge that each connector lays when being applicable to diverse geographic location respectively is provided with terminal connector 4 in the terminal of cable testing bridge, and the close and protect effect is played in the back of pegging graft.O type ladder limit sectional dimension is H=60～200mm, b=20～60mm, δ=0.8～3.0mm, but in the cavity on terraced limit the filling foamed plastic, with the intensity on the terraced limit of further raising.

Claims

1. O type ladder limit cable testing bridge, it is characterized in that, ladder is done terraced limit (1) by two asymmetric oblate pipes (11) and several pipe steps (2) of uniformly-spaced being provided with are connected forms, peg graft through aluminium alloy connector (3) and terraced limit (1) between ladder, constitute O type ladder limit cable testing bridge, the contour dimension of connector step is slightly larger than the contour dimension on O type ladder limit, the connecting plate of step both sides is arranged to interior thickness and terraced limit size (b) is sliding fit, upper and lower side gabarit length and terraced limit size (H-2 δ) are sliding fit, be respectively equipped with slotted hole on the connecting plate, back and the terraced limit respective aperture of pegging graft is connected through bolt, connector is straight-through connector (31), its two connecting plates slotted hole center line is 180 ° of angles, is provided with terminal connector (4) in the terminal of crane span structure.

2. by the described cable testing bridge of claim 1, it is characterized in that oblate pipe (12) or oval pipe (13) can be arranged in terraced limit.

3. by the described cable testing bridge of claim 1, it is characterized in that connector can be the connector (32) that two connecting plate slotted hole center lines are vertical 135 ° of angles, also can be the connector (33) that is 135 ° of angles of level.

4. by the described cable testing bridge of claim 1, it is characterized in that, can be arranged to hinge-like between connector two steps, the connector (34) of two connecting plate slotted hole centreline space variable-angles.

5. by the described cable testing bridge of claim 1, it is characterized in that O type ladder limit sectional dimension is H=60～200mm, B=20-60mm, δ=0.8～3.0mm.

6. by the described cable testing bridge of claim 1, it is characterized in that, but in the cavity on terraced limit the filling-foam plastics.