CN200972031Y

CN200972031Y - Telescopic joint

Info

Publication number: CN200972031Y
Application number: CN 200620124883
Authority: CN
Inventors: 倪静丰
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-27
Filing date: 2006-10-27
Publication date: 2007-11-07
Anticipated expiration: 2016-10-27

Abstract

The utility model provides an expansion bend, comprising a left pipe and a right pipe. One section of the left pipe extends into the right pipe. The right end of the left pipe is provided with a locating dummy club, and a sleeve gasket is arranged between the left pipe and the right pipe; the sleeve gasket is stick to the left pipe and the right pipe with an O ring; the terminal of the right pipe is provided with a female screw and a closing ring which has a outside thread to screw into the terminal of the right pipe. The utility model is simple in structure, low in cost and has a reliable sealing at the high pressure.

Description

A kind of slip joint

Affiliated technical field

The utility model relates to a kind of slip joint.

Background technique

Expanding with heat and contract with cold that compensator or slip joint be used for that compensates causes is installed in the present mechanical industry conveyance conduit, its structure is filled in asbestos rope mostly between left end pipe and right-hand member pipe, sealability is all right when pressure is low, in case but pressure is when higher, then sealability can not get guaranteeing.

Summary of the invention

For the existing deficiency that adopts slip joint poor sealing performance when pressure is higher of asbestos rope, the utility model provides a kind of slip joint.

The technological scheme that its technical problem that solves the utility model adopts is, a kind of slip joint, comprise left end pipe, right-hand member pipe, the some of left end pipe stretches in the right-hand member pipe, and there is positive stop lug boss the right part of left end pipe, between left end pipe and right-hand member pipe, also has stuffing box gland, stuffing box gland and left end pipe and right-hand member pipe are by seal with O ring, and there is internal thread the end of right-hand member pipe, also have a back-up ring, back-up ring is provided with corresponding outside thread, screws in the end of right-hand member pipe.

The beneficial effects of the utility model are that product structure is simple, low cost of manufacture, and sealing is reliable when high pressure.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is embodiment's a tectonic maps.

Among the figure: 1. left end pipe; 2. back-up ring; 3.O shape circle; 4. stuffing box gland; 5. positive stop lug boss; 6. right-hand member pipe.

Embodiment

As shown in Figure 1, a kind of slip joint, comprise left end pipe 1, right-hand member pipe 6, the some of left end pipe 1 stretches in the right-hand member pipe 6, and there is positive stop lug boss 5 right part of left end pipe 1, between left end pipe 1 and right-hand member pipe 6, also has stuffing box gland 4, stuffing box gland 4 seals by O shape circle 3 with left end pipe 1 and right-hand member pipe 6, and there is internal thread the end of right-hand member pipe 6, also has a back-up ring 2, back-up ring 2 is provided with corresponding outside thread, screws in the end of right-hand member pipe 6.

Claims

1, a kind of slip joint, comprise left end pipe, right-hand member pipe, the some of left end pipe stretches in the right-hand member pipe, it is characterized in that: there is positive stop lug boss the right part of described left end pipe, between left end pipe and right-hand member pipe, also has stuffing box gland, stuffing box gland and left end pipe and right-hand member pipe are by seal with O ring, and there is internal thread the end of described right-hand member pipe; Also have a back-up ring, back-up ring is provided with corresponding outside thread, screws in the end of right-hand member pipe.