CN2473438Y

CN2473438Y - Improved metal soft tube

Info

Publication number: CN2473438Y
Application number: CN 01211062
Authority: CN
Inventors: 张申正; 强敏勤
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-10
Filing date: 2001-03-10
Publication date: 2002-01-23
Anticipated expiration: 2011-03-10

Abstract

An improved metal soft pipe comprises a metal soft pipe boy(2). End of the pipe is welded with a metal connector(6), Welding joint has a protection cover(3). Tail part of an inserting soft connector(5) is sheathed at the outside of the metal connector(6). Outside wall of the inserting soft connector(5) is approximately parallel with the tail part of the protection cover(3). A blocking cover tightly wraps the outside of the protection cover(3) and the inserting soft connector(5), which makes the inserting soft connector(5) be pressed to integrate with the metal connector(6). Because the main body of the utility model mainly adopts the soft metal pipe, the utility model is corrosion resistance and can not be blocked. The end head of inserting soft connector type can be connected with the connector of the traditional fuel appliance. Therefore, the utility model is the best replacing product of the traditional rubber pipe.

Description

A kind of modified model metallic hose

The utility model relates to a kind of metallic hose that is used to carry gas-liquid.

Traditionally, the mode that connects gas appliances such as LP gas cylinder, fuel tube or gas cooker is: connect and tighten with Drop-proof with galvanized wire at the two ends of rubber pipe by rubber pipe; This Placement exists many defectives: install and transposing inconvenience, under bending state, block gas circuit easily, the rubber pipe corrosion-resistant, easily aging, working life is short, gas leak phenomenon takes place easily, just because of this, explosive incident is revealed in the annual gas poisoning or the combustion gas that all can take place to cause because of above-mentioned reason in all parts of the country.For solving the safe and reliable connectivity problem of gas pipeline, it is to be processed into the soft connecting tube with helical fissure metal tube that " the plug-in type helical fissure metal hose connector " of our ZL97225276.2 of patent formerly and " the spirality shape corrugated metal hose connector " of ZL97225278.9 disclose two kinds of main bodys, its two ends are provided with the thread connecting joint of metal, these two kinds of design proposals are owing to adopted the corrugated metal tube body, have certain flexible can be arbitrarily crooked and don't can bend, and it is convenient and reliable to be threaded, can thoroughly stop gas leakage, the choke phenomenon, thereby elimination is revealed because of combustion gas and is caused poisoning, the accident potential of explosive incident, practical effect is fine.Yet, just because of its termination connection employing is thread connecting mode, therefore corresponding gas appliance also must be supporting with thread connecting joint, and possess this condition have only a few cities such as Shanghai in China, the gas appliance in most of areas has still kept traditional rubber pipe inserted mode, and this has brought certain obstruction for applying of these two kinds of corrugated metal pipes.Simultaneously, corrugated metal pipe also has a minor defect, is exactly to embed dirt in its node easily and be difficult to cleaning.

The purpose of this utility model with regard to be to provide at above-mentioned prior art present situation a kind of both had corrugated metal pipe corrosion-resistant, do not block advantage, the modified model metallic hose that can directly peg graft with traditional gas appliance again.

Another purpose of the present utility model is to provide a kind of periphery can not embed the modified model metallic hose of dirt.

The purpose of this utility model is achieved in that the modified model metallic hose includes the metallic hose main body, its termination is welded with a metal joint, outside weld, be with a sheath, the afterbody of one plug-in type soft connector is enclosed within outside the described metal joint head, and the periphery wall of plug-in type soft connector is roughly equal with the sheath periphery wall, one cutting ferrule tightly wraps in outside described sheath and the plug-in type soft connector afterbody, makes the plug-in type soft connector be connected one because of pressing with metal joint.

For the plug-in type soft connector reliably is connected with metal joint, described metal joint head periphery wall can be provided with annular groove, and described cutting ferrule front end also can close up so that the plug-in type soft connector is pressed on the metal joint periphery more reliably.

Compared with prior art, the utility model has been because main body has adopted the soft alloy pipe, and is therefore corrosion-resistant, do not block, and the termination then is the plug-in type soft connector, therefore can directly peg graft with traditional gas appliance connecting end, be the best Updated product of existing traditional rubber pipe.

Description of drawings.

Fig. 1 is the utility model embodiment's a structure cross-sectional schematic.

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.As shown in Figure 1, the modified model metallic hose includes corrugated metal tube body 2, its termination is welded with a flange type metal joint 6, and its medium position has a ring-type convex tendon 61 it is divided into former and later two parts: head and afterbody, and wherein the head periphery wall has annular groove 62; At the weld of metal joint 6 with corrugated metal pipe 2 main bodys, also be that the termination of corrugated metal tube body 2 and the afterbody periphery wall of metal joint 6 are with a transition sheath 3 outward, this sheath 3 has certain elasticity and drawing property admittedly, can adopt soft materials, the afterbody of one plug-in type soft connector 5 is enclosed within outside described metal joint 6 heads, and its periphery wall is roughly equal with the periphery wall of described sheath 3, one cutting ferrule 4 tightly wraps in outside described sheath 3 and plug-in type soft connector 5 afterbodys and its front end 41 closes up, and makes plug-in type soft connector 5 be connected one because of pressing with metal joint 6.

Then be with a soft protecting cover 1 outside the described corrugated metal tube body 2, in case node is embedded in dirt.

Described corrugated metal tube body 2 can adopt ring bellows, also can adopt the helical fissure pipe, and is certain flexible as long as it has.

During use, as long as the plug-in type soft connector of the present utility model 5 and the connecting end of corresponding gas appliance are pegged graft (as with Fig. 1 in the waveform joint 81 of gas valve 8 peg graft), and tighten up at the fastening jump ring 7 of plug-in type soft connector 5 external applications and to get final product.

Claims

1. modified model metallic hose, include the metallic hose main body, the termination that it is characterized in that the metallic hose main body is welded with a metal joint, outside weld, be with a sheath, the afterbody of one plug-in type soft connector is enclosed within outside the described metal joint head, and the periphery wall of plug-in type soft connector is roughly equal with the sheath periphery wall, and a cutting ferrule tightly wraps in outside described sheath and the plug-in type soft connector afterbody, makes the plug-in type soft connector be connected one because of pressing with metal joint.

2. modified model metallic hose as claimed in claim 1 is characterized in that described metal joint head periphery wall is provided with annular groove.

3. modified model metallic hose as claimed in claim 1 is characterized in that described cutting ferrule front end closes up.

4. as claim 1 or 2 or 3 described modified model metallic hoses, it is characterized in that described metal joint is divided into head and afterbody by the ring-type convex tendon at its middle part with it.

5. as claim 1 or 2 or 3 described modified model metallic hoses, it is characterized in that described metallic hose main body is with a soft protecting cover outward.

6. modified model metallic hose as claimed in claim 4 is characterized in that described metallic hose main body is with a soft protecting cover outward.