CN2780895Y

CN2780895Y - Steel pipe scaffold connected by lockable key

Info

Publication number: CN2780895Y
Application number: CN 200520004095
Authority: CN
Inventors: 宋佩瑜
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-05
Filing date: 2005-02-05
Publication date: 2006-05-17
Anticipated expiration: 2015-02-05

Abstract

The utility model relates to a steel pipe scaffold connected by a lockable key. A keyboard is welded on a vertical steel pipe and provided with four wedge-shaped keys with wide bottom and narrow top and wide outside and narrow inside. Key grooves corresponding to the keys are embedded and welded at both sides of a horizontal steel pipe. The horizontal steel pipe with key grooves is inserted and installed on the vertical steel pipe with keys so as to form a steel pipe scaffold connected by keys. The upper part of each key is provided with a pin hole, and the key groove and the key are locked by a split pin so as to form a steel pipe scaffold connected by a lockable key.

Description

The steel pipe scaffold that a kind of key that can lock connects

Technical field: the utility model relates to a kind of spigot-and-socket steel pipe scaffold.

Technical background: the present spigot-and-socket steel pipe scaffold that uses, bowl fastening type steel pipe scaffold, card insert type steel pipe scaffold etc. are arranged, be widely used in the construction of various engineering such as the room is built, bridge, tunnel, dam.Their common feature is to fix a bowl to buckle or pallet on vertical steel pipe, fixes a plug at the horizontal steel tube two ends.But that the shortcoming of these bowls button, pallet and horizontal plug is a volume is big, Heavy Weight, anti-downslide ability peace are torn ineffective victory, poor, the cost height of self-lock ability open, and rapid wear is easily hindered, and transportation, stacks inconvenience.

Summary of the invention: in order to overcome above-mentioned shortcoming, the utility model provides a kind of steel pipe scaffold of connecting of key that can lock, and the technical scheme that is adopted is: go up keyboard of welding at vertical steel pipe (Φ 48), have on the keyboard four low wide and up narrow, outer width is narrow, the key of chock shape; Inlay at horizontal steel tube (Φ 48) two ends and to have welded and the corresponding keyway of key.The horizontal steel tube socket joint that will have keyway is installed on the vertical steel pipe that has key, forms the steel pipe scaffold that a kind of key connects.Top at key has made pin-and-hole, with key and keyway locking, forms the steel pipe scaffold that a kind of key that can lock connects with cottor pin.

The beneficial effects of the utility model are: the node that the key that is adopted, keyway are formed, and 1. volume is little, and is in light weight, cost is low, and this node weight is 1/2 of fastener node, is 2/3 of bowl button node.2. every mechanical index all is better than other steel pipe scaffold, and wherein anti-downslide ability is 15 times of fastener frame, is 4 times of bowl button frame.3. dismounting is flexible, quick, and locking ability is strong.4. be not afraid of to fall and bump, the repeat usage height.

Description of drawings further specifies the utility model below in conjunction with accompanying drawing:

Fig. 1: assembly drawing of the present utility model

Fig. 2: keyboard layout of the present utility model

A figure keyboard stereogram b figure keyboard sectional drawing

Fig. 3: keyway figure of the present utility model

A figure keyway vertical view b figure keyway elevation c figure keyway stereogram

The specific embodiment: on vertical steel pipe, welding upper keyboard, in scarfweld on the horizontal steel tube with the corresponding keyway of key (as shown in Figure 1).The horizontal steel tube socket joint that will have keyway is installed on the vertical steel pipe that has key, forms the steel pipe scaffold that key connects.After scaffold installs, key and keyway are locked with cottor pin.

Claims

1, a kind of steel pipe scaffold of the key connection that can lock, it is characterized in that: on vertical steel pipe, welded a keyboard, have on the keyboard four low wide and up narrow, outer width is narrow, the key of chock shape, burn-on and the corresponding keyway of key in that the horizontal steel tube two ends mouth of pipe is embedded, the horizontal steel tube socket joint that will have keyway is installed on the vertical steel pipe that has key, form the steel pipe scaffold that a kind of key connects, on the top of key body one pin-and-hole is arranged, available cottor pin is inserted, and with key and keyway locking, reaches the comprehensive constraint of front and back up and down of scaffold node.