CN2403987Y - Large caliber plastic pipe connector - Google Patents

Abstract

The utility model relates to a large caliber plastic pipe connector. A conical clamping snap ring is sheathed on the outer wall of one end of a plastic pipe and inserted in a joint pipe body with the plastic pipe, and the joint pipe body is provided with an O-shaped sealing ring. Through a screw cap which is tightly screwed on the joint pipe body, the connecter and the plastic pipe are sealed. The utility model avoids the harm to people caused by using glue to connect. Compared with other connecting methods, the utility model is a convenient, practical, safe, reliable and sanitary connector.

Description

Big caliber plastic tube joint

The utility model belongs to the macromolecule member, is specifically related to the structure of plastic tube jointing.

Adopting polyethylene (PE), crosslinked polyethylene (PEX), polypropylene (PP), polybutylene (PB) and the plastic-aluminum combined tubing that waits is present emerging green tubing, carry liquid especially for water supply pipe with this class tubing, in energy-saving and environmental protection and application, has clear superiority, with it as a kind of desirable to mould for steel, China construction department widelys popularize, in the hope of progressively substituting Coating Steel Pipe.And the key that plastic tube is promoted the use of is to solve its interconnection technique, the main now several modes such as glue connection, metallic copper are threaded, hot melt connection that adopt on the China market.On construction process and manufacture cost, the chemical glue that uses during glue connects has certain toxicity, metallic copper be threaded processed complex, cost costliness, hot melt connects needs higher professional knowledge and expensive special device, owing to do not have easy, practical, reliable link, therefore seriously restricting popularizing of this type of tubing.

The purpose of this utility model is: design a kind of big caliber plastic tube joint, it is simple in structure, easy to use, reliable performance, beautiful shape, price suitable, solves plastic tube field joint technical problem.

Technical solution of the present utility model is:

Jointing than the bassoon diameter pipes, mainly form by joint body, nut, " O " RunddichtringO and clamping snap ring, internal diameter has its external diameter of joint body of step that screw thread is arranged, " O " RunddichtringO is positioned at the joint inboard wall of tube body, the clamping snap ring of the even burst of a conical end along internal diameter distribute one group the projection clamp ring.

To clamp snap ring and be linked in the Guan Yiduan outer wall and insert in the lump in the joint body with pipe, it is external that nut is positioned at adaptor tube, and tightening nuts clamps that snap ring is flat to shrink on the pipe, and protruding clamp ring embeds in the pipe, can make the joint and the seal of tube.

Provide accompanying drawing of the present utility model:

Fig. 1 is that the utility model is than bassoon diameter pipes and jointing sectional arrangement drawing

Among the figure: 1 joint body, 2 outside threads, 3 nuts, 4 " O " RunddichtringO, 5 clamp snap ring, 6 pipes, 7 protruding clamp rings

Introduce implementation methods of the present utility model below in conjunction with accompanying drawing:

Be used for jointing than the bassoon diameter pipes mainly by joint body 1, nut 3 " O " RunddichtringO 4 and clamping snap ring 5 are formed, internal diameter joint body 1 its external diameter with the level has screw thread 2, " O " RunddichtringO 4 is positioned at joint body 1 inwall, the outer wall that conical clamping snap ring 5 is linked in pipe 6 one ends inserts in the joint body 1 in the lump with pipe 6, nut 3 is enclosed within outside the joint body 1, the element of cone and the nut 3 that clamp snap ring 5 constitute an inclined-plane kinematic pair, along with tightening of nut 3, clamping snap ring 5 flat the shrinking on the pipe 6 of the even burst of a conical end, embed in the pipe 6 along the one group of projection clamp ring 7 that clamps the distribution of snap ring 5 internal diameters, thereby will manage 6 tightly embraces and plays reliable location and seal action, clamp the snap ring 5 also support of conduct " O " RunddichtringO 4 simultaneously, make it play better seal action, joint body 1 inside is provided with groove so that the flowing of " O " RunddichtringO 4 rear portion water, the top promotion pipe 6 that hydraulic pressure also acts on pipe 6 insertion ends outwards moves, because active force and reaction force make that the protruding clamp ring 7 embedding pipes 6 that clamp snap ring 5 are darker.

The plastic tube joint except that be used for isometrical two logical, also can be used for all size forms such as threeway, elbow.

The utility model is a kind of connecting head of convenient, practical, safe, reliable, health, avoided the potential hazard of glue connection to human body, relative other linkage structure, this joint connects simple, quick, cheap, promotes the use of and will bring very remarkable social benefit and economic benefit.

Claims (1)

1, a kind of big caliber plastic tube joint, it is characterized in that: mainly form by joint body (1), nut (3), " O " RunddichtringO (4) and clamping snap ring (5), its external diameter of internal diameter joint body with the level (1) has screw thread (2), nut (3) is enclosed within outside the joint body (1), " O " RunddichtringO (4) is positioned at joint body (1) inwall, with the taper shape of one group of projection clamp ring (7) clamp snap ring (5) be linked in pipe (6) one ends outer wall and with manage (6) and insert in the lump in the joint body (1).

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