CN103225391A - Easy-connected-type scaffold steel pipe - Google Patents

Abstract

The invention relates to the field of building scaffolds, and particularly relates to an easy-connected-type scaffold steel pipe. The easy-connected-type scaffold steel pipe is characterized in that a male joint is fixedly equipped at one end of a steel pipe in a coaxial manner; a cylindrical female joint corresponding to the male joint is fixedly equipped at the other end of the steel pipe in a coaxial manner; the male joint and the female joint regard the ends toward the outer part of the steel pipe respectively as the out ends; the male joint is provided with a swing positioning section protruding from the steel pipe and used for being matched with the male joint in a centring manner; a connecting section in the same coaxial with the swing positioning section is arranged at the outer end of the swing positioning section; the outer diameter of the connecting section is less than that of the swing positioning section; and non-return locking pieces are arranged at the outer end of the connecting section; a bayonet gradually widened from one end to the other end in the circumferential direction of the steel pipe is formed by the inner side surface of the non-return locking pieces and the outer end surfaces of the swing positioning section; baffle plates used for inserting the male joint and clamped in the bayonet after rotating in a setting direction are arranged on the inner wall surface of the female joint; and the scaffold steel pipe has the properties of convenience in butting and reliability in butting simultaneously.

Description

A kind of easy-to-connect type scaffolding steel pipe

Technical field

The present invention relates to the building scaffold field, particularly relate to a kind of easy-to-connect type scaffolding steel pipe.

Background technology

At present, the application of scaffold in building operations is very general, can both see the figure of scaffold on the almost big and small throughout building site.Mention scaffold and just have to talk about its two big building blocks: steel pipe and fastener.Steel pipe is as the main body of scaffold load-bearing, and fastener is as the connector between the steel pipe, and the two all plays crucial effects to the operability and the reliability of scaffold.

The steel pipe that is used for scaffold is divided into vertical steel pipe, horizontal steel pipe and diagonal brace steel pipe.Vertical steel pipe mainly plays the effect of support, laterally steel pipe is in order to set for this platform on the one hand, also play the effect of reinforcing vertical steel pipe on the other hand, the diagonal brace steel pipe then is in order to reinforce vertical steel pipe or horizontal steel pipe, to utilize leg-of-mutton stability to guarantee that further scaffold is firm, reliable.In work progress, because the height of construction building, width etc. differ, therefore no matter be horizontal steel pipe, vertical steel pipe, or diagonal brace steel pipe, often all need by to fetching the length that reaches required, in the prior art, mostly butt joint between the scaffolding steel pipe is to lean on fastener to realize, this docking mode is inefficiency on the one hand, must have a radial deflection amount between two scaffolding steel pipes that require on the other hand to dock, promptly can't make it to keep coaxial state, this obviously can make the load-carrying properties of two steel pipes after the butt joint have a greatly reduced quality, what certainly, this problem showed in vertical steel pipe is particularly outstanding.At the problems referred to above, also there is the people to connect two scaffolding steel pipes by the connector of special use, described connector is bar-shaped, and its two ends have corresponding insertion section respectively, and two with the connector two ends during use are inserted the butt joint that can realize in the extremely corresponding steel pipe of section plug-in mounting two steel pipes.By to as can be known with the description of upper connector, this connector needs to peg graft with two steel pipes respectively in use, it still exists awkward problem, in addition, owing to there is not corresponding axial limiting structure, when being used for the butt joint of horizontal steel pipe, the situation that connector falls or steel pipe falls very likely appears in assembling process.This shows that urgent need is a kind of at present on the market can conveniently dock and dock reliable scaffolding steel pipe in use.

Summary of the invention

The object of the present invention is to provide and a kind ofly can conveniently dock and dock reliable easy-to-connect type scaffolding steel pipe in use.

In order to address the above problem, easy-to-connect type scaffolding steel pipe of the present invention is by the following technical solutions: the easy-to-connect type scaffolding steel pipe, one end of this steel pipe is coaxial fixedly to be equipped with male joint, the other end is coaxial fixedly be equipped with corresponding with male joint, the female joint of tubular, public, female joint is the outer end with its end towards the steel pipe outside separately, male joint has protrudes outside the steel pipe, be used for the revolution positioning section that cooperates with female joint centering, the outer end of revolution positioning section is provided with the linkage section of coaxial line with it, the external diameter of linkage section is provided with the non-return lock dog less than external diameter and its outer end of revolution positioning section, the medial surface of described non-return lock dog surrounds the bayonet socket that the circumferencial direction around steel pipe broadens gradually from an end to the other end with the outer face of revolution positioning section, and the internal face of described female joint is provided with the block that is used for inserting and being stuck in after the direction initialization rotation in male joint described bayonet socket.

The male and female joint is plugged in the corresponding end of steel pipe separately and has the position limiting convex ring of coaxial setting respectively, and position limiting convex ring cooperates with the end face block of steel pipe respective end, and the position limiting convex ring of female joint is positioned at its place, outer end.

Be provided with the cue mark of the locked position that is used to indicate them on the male and female joint separately.

The medial surface of described non-return lock dog is a helicoid, and the lateral surface of block is the helicoid with the medial surface complementation of non-return lock dog.

In the process of using this scaffolding steel pipe, when needs two pipe butt joints, only the male joint of a steel pipe wherein need be inserted the female joint on another steel pipe, rotating corresponding steel pipe along direction initialization then gets final product, because the existence of described non-return lock dog and block, two steel pipes just can be joined together through after counterrotating, unless reverse rotation once more this moment steel pipe wherein, they definitely can't be thrown off.This shows that this scaffolding steel pipe is possessing simultaneously and conveniently docks and dock reliable characteristic.

Further, adopt the fixed form of plug-in mounting to be convenient to realize coaxial between steel pipe and the male and female joint, position limiting convex ring has made things convenient for the accurate installation to the male and female joint; Cue mark is used to the operator that indication information is provided, so that the operator judges whether the male and female joint has spun and put in place that helicoid has formed the fit structure that is similar to screw thread between non-return lock dog and block.

Description of drawings

Fig. 1 is the structural representation (removing fastener) of the embodiment 1 of easy-to-connect type scaffolding steel pipe;

Fig. 2 is the structural representation of the male joint among Fig. 1;

Fig. 3 is the structural representation of the female joint among Fig. 1.

The specific embodiment

The embodiment 1 of easy-to-connect type scaffolding steel pipe, as Figure 1-3, one end of this steel pipe 14 is coaxial fixedly to be equipped with male joint 51, the other end is coaxial fixedly to be equipped with thefemale joint 52 corresponding with male joint 51, the male and female joint is the outer end with its end towards steel pipe 14 outsides separately, wherein male joint 51 is an entity structure, andfemale joint 52 is tubular.

Male joint 51 has the revolution positioning section 511 that protrudes outside the steel pipe, revolution positioning section 511 is cylindrical, can insert in thefemale joint 52 in use and can infemale joint 52, rotate, realize public, centering between the female joint, its inner place has a connecting portion 512, this connecting portion 512 is truncated cone-shaped and its external diameter external diameter greater than the revolution positioning section, its outer peripheral face is provided with position limiting convex ring, be referred to as first bulge loop 513 herein, when assembling male joint 21, at first with its inner corresponding end of inserting steel pipe 14, and then welding is fixing, first bulge loop 513 can be used for cooperating the degree of depth that limits male joint 51 insertion steel pipes 14 with the end face of steel pipe 14, also is provided with on first bulge loop 513 simultaneously to be used for the indication public affairs, the cue mark (not shown) of the locking state of female joint; The outer end of revolution positioning section 511 is provided with the linkage section 514 of coaxial line with it, in the present embodiment, linkage section 514 is cylindrical equally, its external diameter is less than the external diameter of revolution positioning section 511, make the outer face of revolution positioning section 511 form a step surface thus in cooperation place with linkage section 514, the outer end of linkage section 514 is provided with non-return lock dog 515, in the present embodiment, non-return lock dog 515 has three, they radially outward protrude and are distributed on the linkage section 514 around the center line of linkage section 514 along linkage section, the medial surface of non-return lock dog 515 surrounds the bayonet socket 516 that the circumferencial direction around steel pipe 14 broadens gradually from an end to the other end with the outer face of revolution positioning section 511, suppose that male joint 51 is along clockwise rotating withfemale joint 52 lockings the time, then described bayonet socket 516 is to broaden gradually along clockwise direction, in the present embodiment, the medial surface of non-return lock dog 515 is a helicoid, broadening gradually of bayonet socket 516 is realize thus (certain, in other embodiments, can also on the outer face of revolution positioning section, corresponding inclined-plane or helicoid be set).

Be provided with position limiting convex ring on the outside wall surface offemale joint 52 equally, claim that herein this position limiting convex ring issecond bulge loop 521,second bulge loop 521 is positioned at the place, outer end of female joint, in the time of on being assembled to steel pipe 14, steel pipe 14, thesecond bulge loops 521 are at first inserted in the inner offemale joint 52 can cooperate the insertion depth that limitsfemale joint 52 with the corresponding end face of steel pipe 14; The internal face offemale joint 52 is provided withblock 522, in the present embodiment,block 522 is positioned at the place, the inner offemale joint 52, it has three, corresponding one by one with non-return lock dog 515, the lateral surface ofblock 522 is the helicoid with the medial surface complementation of non-return lock dog 515, public, when female joint connects, male joint 51 at first is inserted in the endoporus offemale joint 52, and non-return lock dog 515 is inwardly crossed block from the gap between adjacent blockers, and then the male joint 51 that turns clockwise, thenblock 522 is stuck in the corresponding bayonet socket and stops public on the one hand, female joint continues to relatively rotate, and tangles the non-return lock dog on the other hand and stops public, female joint gets loose vertically; In addition, be provided with the cue mark (not shown) in the female joint equally, when male and female structure butt joint and locking, this cue mark aligns with cue mark in the male joint.

In other embodiment of easy-to-connect type scaffolding steel pipe, parts such as jackscrew, screw can also be set by the corresponding end place at steel pipe realize fixing between the male and female joint, use for convenience, can also on steel pipe, preset fastener.

Claims (4)

1. easy-to-connect type scaffolding steel pipe, it is characterized in that, one end of this steel pipe is coaxial fixedly to be equipped with male joint, the other end is coaxial fixedly be equipped with corresponding with male joint, the female joint of tubular, public, female joint is the outer end with its end towards the steel pipe outside separately, male joint has protrudes outside the steel pipe, be used for the revolution positioning section that cooperates with female joint centering, the outer end of revolution positioning section is provided with the linkage section of coaxial line with it, the external diameter of linkage section is provided with the non-return lock dog less than external diameter and its outer end of revolution positioning section, the medial surface of described non-return lock dog surrounds the bayonet socket that the circumferencial direction around steel pipe broadens gradually from an end to the other end with the outer face of revolution positioning section, and the internal face of described female joint is provided with the block that is used for inserting and being stuck in after the direction initialization rotation in male joint described bayonet socket.

2. easy-to-connect type scaffolding steel pipe according to claim 1, it is characterized in that, the male and female joint is plugged in the corresponding end of steel pipe separately and has the position limiting convex ring of coaxial setting respectively, and position limiting convex ring cooperates with the end face block of steel pipe respective end, and the position limiting convex ring of female joint is positioned at its place, outer end.

3. easy-to-connect type scaffolding steel pipe according to claim 1 is characterized in that, is provided with the cue mark of the locked position that is used to indicate them on the male and female joint separately.

4. according to the described easy-to-connect type scaffolding steel pipe of each claim of claim 1-3, it is characterized in that the medial surface of described non-return lock dog is a helicoid, the lateral surface of block is the helicoid with the medial surface complementation of non-return lock dog.

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