CN2190680Y

CN2190680Y - Wedge fastening joint of scaffold

Info

Publication number: CN2190680Y
Application number: CN 94205594
Authority: CN
Inventors: 戴红妹; 仇铭华
Original assignee: Bierte New Construction Tech Research Inst Beijing
Current assignee: Bierte New Construction Tech Research Inst Beijing
Priority date: 1994-03-29
Filing date: 1994-03-29
Publication date: 1995-03-01
Anticipated expiration: 2004-03-29

Abstract

The utility model relates to a scaffold, particularly the joint of a scaffold. The wedge fastening function of two conical surfaces are used to wedgewise fasten the joint on the cross bar (inclined bar) of a scaffold with a lower bowl on an upright post; the included angle of two adjacent cross bars (inclined bars) can be selected randomly; the stability and the flexibility are improved, and the use can not be influenced when bulk cement piles up in the lower bowl; the utility model has the advantages of easy assembly and disassembly and low cost.

Description

Wedge fastening joint of scaffold

The utility model relates to a kind of scaffold, particularly relates to its connector

The scaffold that building operations is used from original bamboo and wood colligation, to bolt connection, fastener type steel pipe scaffold, develops into modular at grade intersection, gate-type and integral frame-type scaffold, and its common shortcoming is described in the CN86201080 as the patent No..This patent development and the bowl button-type tubular scaffolding that has improved Britain SGB company, a kind of tubular scaffolding of tooth button-type is provided, be provided with recessed tooth at following bowl of button, be provided with double wedge in cross bar (brace) connector and following bowl of contact position of detaining, they intermesh when mounted, have improved the stability of scaffold.

But the connector of this teeth buckle formula, the star cement in addition that is often fallen down from above in practice of construction bonds, and clears up these dry slags and will spend a large amount of work, not so can't re-use.And this horizontal direction that is connected can not rotate arbitrarily, can only do stepping with a tooth pitch.The processing of upper and lower bowl button shaggy tooth has increased manufacturing cost.

The purpose of this utility model is to provide a kind of improvements over the prior art, the contact surface that is about to following bowl button and connector be provided with can self-locking taper surface, easy construction, fastening easy, installation, dismantle more convenient, cheap.

The utility model is made up of column, following bowl of button, cross bar (brace) connector, alignment pin, following bowl button is welded on the precalculated position of column, it is characterized in that: the following bowl of button 2 and the contact surface of connector 1 are the taper surfaces of angle together, the inwall of promptly following bowl of button 2 is the conical surfaces of falling the garden, the part that connector 1 inserts following bowl of button 2 is the little down big taper surface of, when mounted, connector 1 inserts column 5 and detains in 2 the cone tank with following bowl, knocking connector 1 can make connector 1 hug column 5 easily by wedging.On two taper surfaces, can carry out annular knurl, to increase its friction factor.

Several small openings 7 that leaks cement slurry are arranged at the bottom of following bowl button 2, so that remove the cement slurry that may accumulate in the following bowl of button 2.

The upper end of bowl button 2 all is welded with an alignment pin 4 under welding on the column 5, and clip 3 is enclosed within on the column 5, and the upper end of clip 3 is face 9 in the shape of a spiral, and its inwall has a keyhole 8.After connector 1 inserted 2 lockings of following bowl button, the keyhole that makes clip 3 dropped on the top of connector 14 times and is rotated through alignment pin, and alignment pin 4 is risen along helicoid 9, and soon clip 3 prevents that to pressing down column 5 and combining of connector 1 are subjected to becoming flexible of unexpected power.Especially when highrise building, the stability and the safety of scaffold have been guaranteed.

The utility model compared with prior art has the following advantages:

1. compare with the product of SGB company, stability is strong;

2. be that CN86201080 compares higher stability is arranged with the patent No., the cement slurry that can not cause to fall and break when construction is smashed accumulation at following bowl, and the angle of adjacent two cross bars (brace) can be selected arbitrarily, and use is flexible;

3. mounting or dismounting are convenient;

4. processing is simple, and cost is lower.

Description of drawings:

Fig. 1 is a general assembly drawing of the present utility model

1. 2. times bowl buttons of connector

3. clip 4. alignment pins

5. column 6. cross bars

7. small opening

Fig. 2 is the vertical view of Fig. 1

1. 2. times bowl buttons of connector

3. clip

Fig. 3 is following bowl of button of figure 2 part drawings

7. small opening

Fig. 4 is the vertical view of Fig. 3

Fig. 5 is the part drawing of clip 3

8. keyhole 9. helicoids

Fig. 6 is the vertical view of Fig. 5

8. keyhole

Fig. 7 is connector 1 part drawing

Fig. 8 is the vertical view of Fig. 7

Accompanying drawing is described in conjunction with the embodiments

Embodiment of the present utility model as shown in Figure 1, form by column 5, following bowl of button 2, cross bar (brace) connector 1, alignment pin 4, following bowl button 2 is welded on the precalculated position of column 5, every root post 5 is welded with several following bowl button 2, when mounted, connector 1 is tight to be inserted column 5 and detains in 2 the cone tank with following bowl, makes connector 1 hug column 5.On two taper surfaces, rolled decorative pattern.

All be welded with an alignment pin 4 in the upper end of 5 times bowl buttons 2 of column, clip 3 is enclosed within on the column 5, and the upper end of clip 3 is face in the shape of a spiral, and its inwall has a keyhole.After connector 1 inserts 2 lockings of following bowl of button, the keyhole that makes clip 3 drops on the top of connector 14 times and is rotated through alignment pin, alignment pin 4 is risen along helicoid, be about to clip 3 and compress connector 1 downwards, prevented that column 5 is subjected to the loosening of unexpected power with combining of connector 1.

Especially when highrise building, the stability and the safety of scaffold have been guaranteed.Work as use

8 steel pipes are made column, but the utility model is at least more than the frame to 100 meter.

Claims

1, a kind of scaffold wedging type connector is made up of following bowl of button, cross bar (brace) connector, it is characterized in that:

(1) inwall of following bowl of button (2) and cross bar (brace) connector (1) are the garden conical surfaces of a same angle (tapering) with the contact surface of following bowl of button (2), the inwall of promptly following bowl of button (2) is the little big conical surface of falling the garden of, the part that connector (1) inserts following bowl of button (2) is the little down big taper surface of, during installation, connector (1) tightly is inserted in down in the cone tank between bowl button (2) and column (5);

(2) bottom of following bowl of button (2) has several to leak the small opening (7) of cement slurry.

2, according to the said scaffold wedging type of claim 1 connector, it is characterized in that following bowl of button inwall of (2) and cross bar (brace) connector (1) with following bowl detain (2) but the contact surface annular knurl.