CN201554724U

CN201554724U - Metal pipe vertical self-locking connecting device

Info

Publication number: CN201554724U
Application number: CN2009202971048U
Authority: CN
Inventors: 豆海杰
Original assignee: DOU HAIXIA
Current assignee: DOU HAIXIA
Priority date: 2009-12-10
Filing date: 2009-12-10
Publication date: 2010-08-18
Anticipated expiration: 2019-12-10

Abstract

A metal pipe vertical self-locking connecting device belongs to the connecting point structures of metal pipe materials. The technical scheme of the metal pipe vertical self-locking connecting device are that a thin metal pipe is vertically arranged in a through hole of a thick metal pipe, the upper and lower walls of the thin metal pipe are provided with V-shaped projections which are clipped in the internal portions of the thick metal pipe, the thin metal pipe is connected with the thick metal pipe in one piece, and the length of the edge of the thin metal pipe is smaller than the difference between the length of the edge of the thick metal pipe and double thickness of the pipe wall. The metal pipe vertical self-locking connecting device has the advantages that the device is particularly suitable for the assembly of antitheft handrails, the structure is simple, the connection is firm, the operation is quite convenient, connecting points can be locked at a time, and the antitheft effect is excellent.

Description

The vertical self-locking connecting device of a kind of metal tube

One, technical field

The utility model belongs to metal tube material tie point structure.

Two, background technique

Be used to connect the metal tube material in the market for example during the metal tube protective grating, often adopt a kind of V-type jump ring.Two metal tubes that during use thickness do not waited punch in the joint, the V-type jump ring is placed on via hole in tubule, vertically insert in extra heavy pipe by the extra heavy pipe via hole tubule then, the Ka Jiao of jump ring ejects to the tubule hole when being inserted into the tie point position, jump ring makes two metal tubes be fixed together in the inner projection that forms of extra heavy pipe.The shortcoming of this method is, stretches into a metallic rod and is easy to disclose out jump ring in the tubule, and the protective grating joint is unclamped, and loses safeguard function.

Three, summary of the invention

The purpose of this utility model is the vertical tie point self-locking connection structure of a kind of metal tube of design.

The technical solution of the utility model is: thin metal pipe vertically is positioned in the via hole of crude metal pipe, and the V shape projection of two walls is stuck in the inside of crude metal pipe about the thin metal pipe, and thin metal pipe and crude metal pipe are connected as a single entity; The length of side of thin metal pipe is poor less than the length of side of crude metal pipe and 2 times of pipe thicknesses.

The beneficial effects of the utility model: be particularly suitable for assembling anti-theft guardrail, simple in structure, be connected firmly, easy to operate, can expendable locked tie point, good anti-theft effect.

Four, description of drawings

Accompanying drawing 1 is that the utility model A-A is to cross-sectional view.

Accompanying drawing 2 is the utility model schematic perspective views.

Accompanying drawing 3 is that thin metal pipe connects the pre-structure schematic representation.

Five, embodiment

Crude metal pipe 1 that two thicknesses are not waited and thin metal pipe 2 perforates respectively, the length of side of thin metal pipe 2 poor less than the length of side of

crude metal pipe

1 and 2 times of pipe thicknesses wherein, the via hole of crude metal pipe 1 can make thin metal pipe 2 insertions be as the criterion; Two wall perforates 5,6 about thin metal pipe 2, the height in hole equals this limit length of side.When connecting operation, thin metal pipe 2 is inserted in the via hole of crude metal pipe 1, the perforate 5,6 of thin metal pipe 2 is disposed in crude metal pipe 1.In thin metal pipe 2, place wooden pad, knock the two ends of thin metal pipe 2 with wooden mallet, vertically push thin metal pipe 2, form two projectioies 3,4 up and down at its perforate 5,6 places, be stuck in crude metal pipe 1 inside, two metal tubes are linked together securely, unless the connection back is damaged tie point otherwise can not be unclamped again.When assembling metal railing net, two tie point convex design that thin metal pipe is adjacent are or the crude metal pipe inboard that coexists that so that guardrail is whole firm, does not become flexible in the crude metal pipe outside that perhaps coexists.Use same principle and also can connect metal circular tube, concrete steps no longer describe in detail.

Claims

1. vertical self-locking connecting device of metal tube, it is characterized in that: thin metal pipe (2) vertically is positioned in the via hole of crude metal pipe (1), thin metal pipe (2) the V shape projection (3,4) of two walls up and down is stuck in the inside of crude metal pipe (1), and thin metal pipe (2) is connected as a single entity with crude metal pipe (1).

2. the vertical self-locking connecting device of a kind of metal tube according to claim 1 is characterized in that: the length of side of thin metal pipe (2) is poor less than the length of side of crude metal pipe (1) and 2 times of pipe thicknesses.