Adjustable limiting device for joist

A technology of a limit device and a joist, which is applied in the direction of joists, girders, trusses, etc., can solve problems such as difficulty in ensuring safety, low work efficiency, and large volume, so as to avoid the danger of shaking and slipping, and ensure safety , the effect of strong flexibility

Pending Publication Date: 2021-06-22
SHANGHAI HONGJIN EQUIP & ENG CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] Most of the existing joists are welded with aluminum beams and end plates, or connected with fixed sleeve bolts, so that the net distance between the double-jointed joists is fixed. Large size, inconvenient transportation, storage and on-site use. In addition, the existing joists are only suitable for one type of pole system due to the fixed clear distance, and the difference between the two specifications is only the clear distance, which makes it more difficult to distinguish and use ; At the same time, during the on-site use, because the construction personnel are difficult to distinguish, it is easy to be confused, and the work efficiency is low. Even the joists adapted to the 60 system and the 48 system poles are used together, which makes the top of the support system shake a lot and is prone to slippage , security is difficult to guarantee

Method used

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  • Adjustable limiting device for joist
  • Adjustable limiting device for joist
  • Adjustable limiting device for joist

Examples

Experimental program
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Embodiment approach

[0038] In further embodiments of the present invention, please continue to refer to Figure 1 to Figure 8 As shown, the cross section of each first bevel 401 is arranged in a "U" shape.

[0039] Further, as a preferred embodiment, the cross-section of each first protrusion 502 is arranged as a “U”, and the width of each first protrusion 502 is equal to the width of each first groove 401 .

[0040] Further, as a preferred embodiment, several support poles 7 are arranged between the two channel steels 1 , and the two channel steels 1 are clamped and matched with each support pole 7 through several adjustment assemblies 2 .

[0041] When it is necessary to move the support pole 7, loosen the fastening nuts 6 at both ends of the anchor connector 3, and after releasing the clamping of the two channel steels 1 to the support pole 7, the support pole 7 can be placed between the two channel steels 1. Move, thereby reach the purpose of adjusting the distance between the support poles ...

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Abstract

The invention discloses an adjustable limiting device for a joist, and belongs to the technical field of support frame auxiliary equipment. The adjustable limiting device comprises two steel channels and a plurality of adjusting assemblies, wherein the two steel channels are oppositely arranged, each adjusting assembly is arranged between the two steel channels, and both ends of each adjusting assembly are respectively connected with the two steel channels. According to the adjustable limiting device, the clear distance between the steel channels can be changed by adjusting the adjusting assemblies, so that the universality of joists of the 48 system and the 60 system is achieved, the two steel channels are detachably assembled, can be conveniently disassembled as required and can be repeatedly used, and the generalization performance is high.

Description

technical field [0001] The invention relates to the technical field of support frame auxiliary equipment, in particular to an adjustable limit device for a joist. Background technique [0002] The popularity of the prefabricated concept makes the traditional steel pipe fastener support system gradually replaced by the buckle bracket, and the use of joists for the support frame is an important form to reduce the amount of support frame and avoid the top of the beam, especially suitable for erection heights exceeding 8m. In high formwork, the spacing between local poles can be increased, and the steel content can be significantly reduced. [0003] Most of the existing joists are welded with aluminum beams and end plates, or connected with fixed sleeve bolts, so that the net distance between the double-jointed joists is fixed. Large size, inconvenient transportation, storage and on-site use. In addition, the existing joists are only suitable for one type of pole system due to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/04E04C5/01E04B1/24E04B1/58E04B1/38E04G21/14
CPCE04B1/24E04B1/2403E04B1/38E04B1/58E04B2001/2406E04B2001/2466E04C3/04E04C5/01E04C2003/0404E04C2003/0408E04G21/14
Inventor 陈志强周绿元何青长
Owner SHANGHAI HONGJIN EQUIP & ENG CO LTD
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