CN102409804A

CN102409804A - Adjustable equal-strength cantilever beam

Info

Publication number: CN102409804A
Application number: CN2011102421497A
Authority: CN
Inventors: 潘素娟; 孙文秀
Original assignee: 栾清杨
Priority date: 2011-08-23
Filing date: 2011-08-23
Publication date: 2012-04-11

Abstract

Adjustable equal-strength cantilever beam belongs to cantilever beam technical field for building, including mount, cantilever beam, support frame, still includes the pivot, buckles the pole, fixed rotating shaft, solid fixed ring, flexible roof beam, the cantilever beam is fixed on the mount, and the support frame is fixed on the mount to be located and support the cantilever beam below the cantilever beam, flexible roof beam passes through the telescopic link and is connected with the cantilever beam, and the pivot is fixed on the mount, buckles the pole and is connected with the mount through the pivot, sets up fixed rotating shaft on buckling the pole, sets up solid fixed ring on the flexible roof beam, buckles the pole and is connected with flexible roof beam through. The cantilever beam and the telescopic beam are both in the shape of an isosceles trapezoid. Compared with the prior art, the invention is provided with the telescopic beam, so that the length of the available cantilever beam is increased, and the telescopic beam is suitable for different building sites; the cantilever beam and the telescopic beam are arranged in an isosceles trapezoid shape, so that the load stress is equal everywhere, and the damage to the cantilever beam caused by uneven stress is reduced.

Description

Adjustable equi intensity cantilever

Technical field

The present invention relates to adjustable equi intensity cantilever, belong to semi girder technical field for building.

Background technology

Semi girder in building field by widespread usage; Present employed semi girder basically all is the rectangular structure of regular shape; The length of cantilever can not be adjusted, and under the concentrated force loading, axial stress is all unequal everywhere on the surface; Semi girder just is destroyed than being easier to like this, causes the use of semi girder to be restricted.

Summary of the invention

In view of the defective that prior art exists, the purpose of this invention is to provide the adjustable equi intensity cantilever that a kind of jib-length is adjustable, loading stress equates everywhere.

For realizing above-mentioned purpose, the present invention solves through following technical scheme: adjustable equi intensity cantilever comprises fixed mount, semi girder, bracing frame; Also comprise rotating shaft, bent rod, fixed rotating shaft, retainer ring, extensible canopy, said semi girder is fixed on the fixed mount, and bracing frame is fixed on the fixed mount; And be positioned at support cantilever beam below the semi girder, and extensible canopy is connected with semi girder through expansion link, and rotating shaft is fixed on the fixed mount; Bent rod is connected with fixed mount through rotating shaft; Fixed rotating shaft is set on the bent rod, retainer ring is set on the extensible canopy, bent rod is connected with extensible canopy through retainer ring.

Said semi girder and extensible canopy all are the shapes of isosceles trapezoid.

Compared with prior art, the present invention is provided with extensible canopy, and then the length of available semi girder increases, and is applicable to different project sites; Semi girder and extensible canopy are arranged to the shape of isosceles trapezoid, and loading stress is equated everywhere, have reduced that because of unbalance stress semi girder is damaged.

Description of drawings

Fig. 1 is adjustable equi intensity cantilever structure diagram;

Fig. 2 is Fig. 1 vertical view.

Among the figure: 1, fixed mount, 2, semi girder, 3, extensible canopy, 4, bracing frame, 5, rotating shaft, 6, bent rod, 7, fixed rotating shaft, 8, retainer ring.

The specific embodiment

Fig. 1, the adjustable equi intensity cantilever shown in 2 comprise fixed mount 1, semi girder 2, bracing frame 4, also comprise extensible canopy 3, rotating shaft 5, bent rod 6, fixed rotating shaft 7, retainer ring 8; Said semi girder 2 is fixed on the fixed mount 1, and bracing frame 4 is fixed on the fixed mount 1, and is positioned at semi girder 2 following support cantilever beams 2; Extensible canopy 3 is connected with semi girder 2 through expansion link; Rotating shaft 5 is fixed on the fixed mount 1, and bent rod 6 is connected with fixed mount 1 through rotating shaft 5, and fixed rotating shaft 7 is set on the bent rod; Retainer ring 8 is set on the extensible canopy 3, and bent rod 6 is connected with extensible canopy 3 through retainer ring 8.

Said semi girder 2 all is the shape of isosceles trapezoid with extensible canopy 3.

Claims

1. adjustable equi intensity cantilever; Comprise fixed mount (1), semi girder (2), bracing frame (4), it is characterized in that also comprising extensible canopy (3), rotating shaft (5), bent rod (6), fixed rotating shaft (7), retainer ring (8), said semi girder (2) is fixed on the fixed mount (1); Bracing frame (4) is fixed on the fixed mount (1); And be positioned at the following support cantilever beam (2) of semi girder (2), and extensible canopy (3) is connected with semi girder (2) through expansion link, and rotating shaft (5) is fixed on the fixed mount (1); Bent rod (6) is connected with fixed mount (1) through rotating shaft (5); Fixed rotating shaft (7) is set on the bent rod, retainer ring (8) is set on the extensible canopy (3), bent rod (6) is connected with extensible canopy (3) through retainer ring (8).

2. adjustable equi intensity cantilever according to claim 1 is characterized in that said semi girder (2) and extensible canopy (3) all are the shapes of isosceles trapezoid.