CN201137288Y

CN201137288Y - Slip bolt type steel pipe scaffold

Info

Publication number: CN201137288Y
Application number: CNU2007200818307U
Authority: CN
Inventors: 林春秀; 赵有元
Original assignee: CHENGDU LAIDA CONSTRUCTION MATERIAL Co Ltd
Current assignee: CHENGDU LAIDA CONSTRUCTION MATERIAL Co Ltd
Priority date: 2007-11-08
Filing date: 2007-11-08
Publication date: 2008-10-22
Anticipated expiration: 2017-11-08

Abstract

A bolt typed steel pipe scaffold belongs to the building construction scaffold, which comprises a vertical rod, a transverse bar, an inclined bar and a plug pin which is wedge shaped, wherein a V-shaped ear is welded on the position of the vertical rod which is applied to connect the transverse rod or the inclined rod, the end part of the transverse rod and the end part of the inclined rod are respectively welded with two U-shaped ears which have two pin holes respectively, the lower part of the plug pin has the pin hole, a location pin is acted to pierce the pin hole. The round-bar wedge shaped location pin is adopted to lock after the plug pin is located, which greatly improves the stability of the scaffold on the structure and adds the construction safety.

Description

The bolt-type steel pipe scaffold

Technical field

The utility model relates to construction and uses steel pipe scaffold, particularly building operations to make the field with fastener type steel pipe scaffold.

Background technology

Fastener type steel pipe scaffold is usually used in the building engineering construction, is mainly assembled through the fast-assembling connecting elements by vertical rod, drag link, diagonal member.Chinese patent literature discloses a kind of bolt-type assembly for scaffold (CN1158443C), has vertical rod, cross bar, diagonal member and latch, vertical rod is provided with syndeton, be provided with the horizontal prong of cross bar in the end of cross bar, be provided with the horizontal prong of diagonal member in the end of diagonal member, syndeton in the vertical rod is a U-shaped grafting ear group, each U-shaped grafting ear in the U-shaped grafting ear group is fixed on the vertical rod bar wall and evenly distributes along the circumferencial direction of vertical rod bar wall, each U-shaped grafting ear and horizontal prong of described cross bar and the horizontal prong of brace match merge can embed above-mentioned horizontal prong on, between the lower limb, form a vertical spliced eye between the inwall of each U-shaped grafting ear and the vertical rod bar wall, on the horizontal prong of described cross bar, on lower limb and the horizontal prong of brace, lower limb offer respectively and the corresponding vertical pin-and-hole of this vertical spliced eye, latch and this vertical spliced eye with each on, vertical pin-and-hole on the lower limb matches.

In the above-mentioned member, the horizontal prong of cross bar (being drag link) and diagonal member end is the U type ear in this case, and the U type grafting ear group in the vertical rod is the V-type ear.It has characteristics simple in structure, that assembled on site is easy to connect.But, in the construction use, because latch is inserted in the pin-and-hole and the U-shaped grafting ear in the vertical rod of horizontal prong of cross bar (or brace), the frictional force that only relies on latch to be in contact with it parts plays the positioning and fixing effect, therefore, the latch that happens occasionally upwards skids off because of vibration even comes off, and cause the scaffold unstability, rock, even the consequence that collapses.

The utility model content

The purpose of this utility model provides a kind of improved, reliable bolt-type steel pipe scaffold of member attachment security.

This novel purpose is achieved in that a kind of bolt-type steel pipe scaffold, comprise vertical rod, drag link, diagonal member, be welded with the V-arrangement ear with the position that connects drag link or diagonal member in the vertical rod, the drag link end is welded with the U-shaped ear of band pin-and-hole, and the end of diagonal member is welded with the U-shaped ear of band pin-and-hole, and latch, latch is that wedge shape and latch bottom have pin-and-hole; Also have as the alignment pin that penetrates pin-and-hole.

The pin-and-hole of above-mentioned latch is the bar shaped pin hole, and alignment pin is a round steel formula wedge shaped detents.

During the scaffold assembling, as, drag link is connected with vertical rod, drag link U-shaped ear muff is contained on the V-type ear of vertical rod, again latch is inserted in the hole between U type ear and the V-type ear, at last, the small end of steel pipe type wedge shaped detents is stretched into locking (diagonal member is identical with being connected of vertical rod) in the bar shaped pin hole on the latch.Round steel formula wedge shaped detents is formed by a round steel bending, is equivalent to a spring, after it is pressed into the bar shaped pin hole, produces certain prestressing force, plays fastening effect.

Compared with prior art, the applicant, adopts the round steel that generally uses on the building site to be bent into again and has prestressed wedge shaped detents in expense hole, latch bottom at the loosening problem of latch, and U type ear is fixed.Therefore, U type ear to all connecting portions of scaffold all adopts the wedge-shaped bolt locking, improved the structural stability of whole scaffold, and can not take place upwards to slide, skid off and cause that scaffold rocks, the situation of unstability, guaranteed working security because of latch.

Description of drawings

Fig. 1 is the schematic perspective view of scaffold;

Fig. 2 is the stereogram that drag link is connected with vertical rod;

Fig. 3 is the scheme of installation of drag link shown in Figure 2 each component when being connected with vertical rod;

Fig. 4 is the scheme of installation of diagonal member each component when being connected with vertical rod;

Fig. 5 is the scheme of installation of diagonal member another view directions when being connected with vertical rod.

The specific embodiment

Fig. 1 illustrates, and steel pipe scaffold mainly is made up of through connector vertical rod 1, drag link 2, diagonal member 3., being welded with V-arrangement ear 7 with the position that connects drag link or diagonal member in the vertical rod 1, drag link 2 ends are welded with the U-shaped ear 5 of band pin-and-hole, and the end of diagonal member 3 is welded with the U-shaped ear 6 of band pin-and-hole.Latch 4 has pin-and-hole 4a for wedge shape and latch bottom; The pin-and-hole 4a of latch 4 is the bar shaped pin hole, also has as the alignment pin that penetrates pin-and-hole 4a.This alignment pin is a round steel formula wedge shaped detents 8.

Steel pipe scaffold is adding man-hour, and to the V-type ear in the vertical rod, the welding at the U type ear place on drag link and the diagonal member should guarantee welding quality.Welding parameter is: welding wire H08Mn2Si, electric current 70-90A, voltage 13-15V, gas flow 10-12, weld fast 20-30.Vertical rod length (m) 0.5,1,1.5,2.5,2.8,3 or 3.5; Drag link length (m) 0.585,0.62,0.72,1.22,1.62,2.12 or 2.42m; Diagonal member length (m) 0.9,1.4,1.7,2.33,2.78 or 3m.

Should adopt instrumentation to carry out ultrasonic inspection after the welding.The processing of whole component and the installation of scaffold should be carried out in strict accordance with JGJ130-2001 " building construction machinery formula steel pipe scaffold safety technics operating specification ":

Welding parameter: welding wire H08Mn2Si

Electric current 70-90A

Voltage 13-15V

Gas flow 10-12

Weld fast 20-30.

Vertical rod length (m) 0.5,1,1.5,2.5,2.8,3 or 3.5

Drag link length (m) 0.585,0.62,0.72,1.22,1.62,2.12 or 2.42m

Diagonal member length (m) 0.9,1.4,1.7,2.33,2.78 or 3m.

Claims

1, a kind of bolt-type steel pipe scaffold, comprise vertical rod (1), drag link (2), diagonal member (3), vertical rod (1) is gone up with the position that connects drag link or diagonal member and is welded with V-arrangement ear (7), and drag link (2) end is welded with the U-shaped ear (5) of band pin-and-hole, and the end of diagonal member (3) is welded with the U-shaped ear (6) of band pin-and-hole, and latch (4), it is characterized in that: described latch (4) has pin-and-hole (4a) for wedge shape and latch bottom; Also have as the alignment pin that penetrates pin-and-hole (4a).

2, according to the described bolt-type steel pipe scaffold of claim 1, it is characterized in that: the pin-and-hole (4a) of described latch (4) is the bar shaped pin hole, and described alignment pin is a round steel formula wedge shaped detents (8).

3, according to claim 1 or 2 described bolt-type steel pipe scaffolds, it is characterized in that: the length of described vertical rod (1) is 0.5～3.5m, and the length of drag link (2) is 0.585～2.42m, and the length of diagonal member (3) is 0.9～3m.