CN201326271Y

CN201326271Y - Butterfly-shaped clip for composite scaffold

Info

Publication number: CN201326271Y
Application number: CNU2008200302213U
Authority: CN
Inventors: 张福胜
Original assignee: Shaanxi Construction Engineering Group Co Ltd
Current assignee: Shaanxi Construction Engineering Group Co Ltd
Priority date: 2008-09-09
Filing date: 2008-09-09
Publication date: 2009-10-14
Anticipated expiration: 2018-09-09

Abstract

The utility model discloses a butterfly-shaped clip for a composite scaffold. The butterfly-shaped clip comprises a connection plate fixedly connected with an upright bar. The butterfly-shaped clip is characterized in that two parallel wing structures are arranged on the two vertical sides of the connection plate; the two wings are fixedly connected with each other through a stopper; a central insertion cavity in engaged connection with the wedge-shaped end of a cross bar is formed between the stopper and the connection plate; butterfly-shaped hooks hooked with T-shaped heads of vertical diagonal stays are arranged symmetrically longitudinally on each wing; the bending angle of the hook is larger than 180 DEG; and a wedge-shaped shape buckled with the T-shaped heads of horizontal diagonal stays is formed between the hook end of the hook and the upright bar. Compared with the conventional node connector, the butterfly-shaped clip can effectively connect all bars on the nodes of the scaffold while ensuring intersection of the axes of the bars, so that the bars form a concurrent force system after bearing force. Accordingly, each bar has no additional stress to ensure the stable structure of the scaffold system.

Description

A kind of butterfly card that is used for combined scaffold

Technical field

The utility model relates to a kind of support body node connector, particularly a kind of butterfly card that is used for combined scaffold vertical rod master connector.

Background technology

The domestic support body node connector that is used for has types of attachment such as fastener type, bowl fastening type, wedge spigot-and-socket, and its function singleness can only interconnect two rod members, and the stressed complexity of node.The Beijing AnDe falsework Engineering Co., Ltd introduces the solid scaffold of France's peace moral, its node connects has very much progress than domestic existing support body node link technique, but certain mechanics functional defect is arranged, can not become concurrent force system after each rod member connection of node is stressed, can not effectively eliminate the rod member that causes because of rod member processing and alignment error can not stressed problem of while, its connection belongs to instantaneous redundant structure, and does not have the secondary locking device.

Summary of the invention

The purpose of this utility model provides a kind of novel joint connector-butterfly card, all rod members of support body node effectively can be connected, the butterflies formula scaffold rectangular element that it combines, can make each center line of the bar junction on one point, the stressed back of each rod member forms concurrent force system, makes its scaffold system become static determinacy or statically-indeterminate structure.And realize the support body module in the three-dimensional repeated combination, and make frame structure stable, safe and reliable, support body bearing capacity height, it is convenient that peace is torn open.

For reaching above purpose, the utility model takes following technical scheme to be achieved:

A kind of butterfly card that is used for combined scaffold, comprise the connecting plate that connects firmly with vertical rod, it is characterized in that the vertical both sides of described connecting plate are two parallel wing structures, affixed between these both wings by block, form the slotting chamber, center that coincide and be connected with the cross bar tapered end between block and the connecting plate; The upper and lower butterfly hook that connects with the straight T connector hook of vertical cable-stayed support that is arranged with of every wing, the hook angle of bend forms the wedge shape space that links with the curved T connector of horizontal cable-stayed support greater than 180 ° between hook hook end and the vertical rod.

In the such scheme, described butterfly hook is a concentric arc in 33 °～62 ° segmental arc scope.Described block and vertical plane have the angle of slope less than 8 °.Described butterfly hook end face and vertical plane have 7 ° of angles.The both sides that the chamber is inserted at center between described block and the connecting plate are provided with the secondary locking device that is connected with the cross bar tapered end.This locking device comprises: insert the both sides, chamber at the center and be provided with lockhole, cross bar tapered end both sides are provided with keyhole, and when the cross bar tapered end snapped in the center and inserts the chamber, lockhole can overlap with keyhole, and by lock(ing) bolt that vertical rod and cross bar is locked.

Compare with the conventional node connector, main connector butterfly card of the present utility model, all rod members of support body node effectively can be connected, and make each center line of the bar junction on one point, the stressed back of each rod member forms concurrent force system, each rod member of structure does not have subsidiary stress, and makes its scaffold system become rock-steady structure.Butterfly is stuck in and adopts the cross symmetry to lay in the vertical rod, realizes that the support body module is in the three-dimensional repeated combination.This system is little because of single-piece length, convenient transportation, and peace is torn open simple, and is safe and reliable, Stability Analysis of Structures, stressed reasonable, the bearing capacity height can be saved lot of materials, is applicable to building engineering construction scaffold and structure construction load-bearing support body field.

Description of drawings

Fig. 1 is the combined scaffold vertical rod assembly figure that has the butterfly card.

Fig. 2 is that the A-A of Fig. 1 is to the cross-sectional figure of butterfly card node.

Fig. 3 be among Fig. 2 B-B to butterfly card sectional view.

Fig. 4 is cross bar, vertical rod, the vertical cable-stayed support connection status figure by the butterfly card.

Fig. 5 is that the C-C among Fig. 4 attempts to cuing open.

Fig. 6 is horizontal cable-stayed support connection status figure on Fig. 2 butterfly card node.

Fig. 1 is in Fig. 6: 1, vertical rod; 1 ', connecting plate; 2, cross bar; 3, vertical cable-stayed support; 4, horizontal cable-stayed support; 5, butterfly card; 6, link stopper; 7, butterfly hook; 8, lock(ing) bolt; 8a, lockhole; 8b, keyhole; 9, cross bar tapered end; 10, the vertical straight T connector of cable-stayed support; 11, the chamber is inserted at the center; 12, wedge shape space; 13, the curved T connector of horizontal cable-stayed support

The specific embodiment

As shown in Figure 1 and Figure 2, butterfly card 5 usefulness carbon structural steel Q135 or Q275, steel plate punch forming.Connect with support body vertical rod 1 welding, become cross to be symmetrical arranged all around at vertical rod 1 upper and lower end.

As Fig. 3-shown in Figure 6, butterfly card 5 comprises the connecting plate 1 ' that is welded in the vertical rod 1, and the vertical both sides of connecting plate are two parallel wing structures, and are affixed by block 6 between the both wings, and chamber 11 is inserted at the formation center; Cross bar 2 tapered end 9 realized coaxial connection by inserting chamber 11.The upper and lower butterfly hook 7 that is arranged with of the every wing of butterfly card, the hook angle of bend forms wedge shape space 12 greater than 180 ° between hook hook end and the vertical rod.The curved T connector 13 of horizontal cable-stayed support 4 connects by this space 12, and forms structure self-locking (Fig. 6).

The butterfly hook is a concentric arc in 33 °～62 ° segmental arc scope, guarantees that vertical cable-stayed support 3 is stressed at this segmental arc scope inner axes, adapts to various scaffold die angles and changes requirement.Butterfly hook end face and vertical plane are made as 7 ° of angles, and when the straight T connector of horizontal cable-stayed support 4 was connected with it, this angle had the structure auto-lock function.

Block 6 and tapered end 9 joint faces are set as the angle of slope less than 8 °, and this angle is less than iron-iron pressure angle, and tapered end 9 can not withdraw from automatically in the application of force process, the implementation structure self-locking.

Except that the structure locking, butterfly card 5 also is provided with secondary locking device (Fig. 5) with cross bar 2.Insert 11 both sides, chamber at the center and be provided with lockhole 8a, cross bar tapered end 9 both sides are provided with keyhole 8b, and when the cross bar tapered end snapped in the center and inserts the chamber, lockhole can overlap with keyhole, and will be that vertical rod 1 locks fully with cross bar 2 by lock(ing) bolt 8.

Claims

1, a kind of butterfly card that is used for combined scaffold, comprise the connecting plate that connects firmly with vertical rod, it is characterized in that the vertical both sides of described connecting plate are two parallel wing structures, affixed between these both wings by block, form the slotting chamber, center that coincide and be connected with the cross bar tapered end between block and the connecting plate; The upper and lower butterfly hook that connects with the straight T connector hook of vertical cable-stayed support that is arranged with of every wing, the hook angle of bend forms the wedge shape space that links with the curved T connector of horizontal cable-stayed support greater than 180 ° between hook hook end and the vertical rod.

2, the butterfly card that is used for combined scaffold as claimed in claim 1 is characterized in that, described butterfly hook is a concentric arc in 33 °～62 ° segmental arc scope.

3, the butterfly card that is used for combined scaffold as claimed in claim 1 is characterized in that described block and vertical plane have the angle of slope less than 8 °.

4, the butterfly card that is used for combined scaffold as claimed in claim 1 is characterized in that, described butterfly hook end face and vertical plane have 7 ° of angles.

5, the butterfly card that is used for combined scaffold as claimed in claim 1 is characterized in that, the both sides in slotting chamber, center are provided with the secondary locking device that is connected with the cross bar tapered end between described block and the connecting plate.

6, the butterfly card that is used for combined scaffold as claimed in claim 5, it is characterized in that, described secondary locking device comprises: insert the both sides, chamber at the center and be provided with lockhole, cross bar tapered end both sides are provided with keyhole, when the cross bar tapered end snaps in the center and inserts the chamber, lockhole can overlap with keyhole, and by lock(ing) bolt that vertical rod and cross bar is locked.