CN2037801U

CN2037801U - Flexible and movable joint for indoor cast-iron drainage pipeline

Info

Publication number: CN2037801U
Application number: CN 88214340
Authority: CN
Inventors: 郭汉丁; 王景山; 陈士杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-09-24
Filing date: 1988-09-24
Publication date: 1989-05-17

Abstract

The utility model discloses a flexible and movable joint for indoor cast-iron drainage pipeline, comprising a cast-iron drainage pipe, a pipe fitting and a sealing element. The original female end of the cast-iron drainage pipe and the pipe fitting is provided with an outer screw, and the bore diameters at the joint of the cast-iron drainage pipe and the pipe fitting are identical. The joint is provided with a movable socket which is provided with an inner screw, and the inner screw is connected with the outer screw at the original female end of the pipe and the pipe fitting. The flexible and movable joint of the utility model is suitable for the high house, the super highrise building and the construction in seismic region. The pipe and the pipe fitting in the pipeline can be detached singly, so the utility model is convenient to the update and the maintenance of the pipe and the pipe fitting, has beautiful appearance and is favorable for the beautification of the indoor environment.

Description

Flexible and movable joint for indoor cast-iron drainage pipeline

The utility model relates to a kind of coupling member of construction drainage pipeline, is the flexible union on a kind of indoor iron drain-pipe road.

Existing discharge pipe line for building adopts traditional socket joint to be rigidly connected, for high level or skyscraper and seismic region building, under the effect of wind-force and seismic force, bigger lateral deformation and the relative storey displacement of the normal generation of pipeline, and socket joint is rigidly connected structure owing to can not bear axial and radial deformation, tend to make pipeline part or sanitary equipment to damage, lead to serious accident, and this linkage structure, be difficult for the renewal and the maintenance of pipeline, outward appearance is coarse, is an impediment to beautifying of room environment.

The purpose of this utility model is to overcome above-mentioned shortcoming, provides a kind of and can bear axially certain and radial deformation, easy access, simple in structure, the flexible union of discharge pipe line aesthetic in appearance.

The utility model is to adopt following measure to realize: the flexible union on this indoor iron drain-pipe road, contain various iron drain-pipes, pipe fitting and seal element, at iron drain-pipe, have outside thread on the former bellmouth end of pipe fitting, iron drain-pipe, pipe fitting equates at the internal diameter of joint, at pipe, the joint of pipe fitting is provided with and has internal thread, with pipe, the movable sheath joint that the former bellmouth of pipe fitting end outside thread connects, this movable sheath has saved connection pipe fitting and has compressed the effect of seal element.

Movable sheath joint of the present utility model can be the sleeve pipe of bilateral, be used for pipe, connection between the pipe fitting, seal element is enclosed within connected tube, the non-threaded end of pipe fitting, and at moving casing and connected tube, leave the gap between the non-threaded end of pipe fitting, guarantee that with this pipeline has certain flexibility, resist certain axial and radial deformation, moving casing is in the process that tightens, seal element is compressed, make it axially and radially produce distortion, thereby will manage, surface of contact sealing between the pipe fitting guarantees the sealing that pipeline moves.

Movable sheath joint described in the utility model can also be the movable end cover of end sealing, be used for pipe, disconnected self seal on the pipe fitting with joint (as peep hole etc.), adopt this movable end cover to help the loading and unloading of peep hole etc., be convenient to the maintenance of pipeline, and also can easily this movable end cover be unloaded when needed, use above-mentioned moving casing and other pipe instead, pipe fitting connects, realize the solid installation of pipeline, thereby make pipe, pipe fitting has multi-functional, is again expansion and supporting lay the first stone of whole discharge pipe line after installing.

The utility model is by the change to jointing in the existing discharge pipe line, the discharge pipe line that adopts this flexibility union is applicable in high level, superelevation layer and the seismic region building, and when certain pipe or pipe fitting in the pipeline break down or damage, thereby can pull down renewal and maintenance that this pipe, pipe fitting are convenient to whole pipeline separately, this is the unexistent function of linkage structure of existing any pipeline, and should the flexibility union aesthetic in appearance, help beautifying of indoor environment.

Accompanying drawing 1 is the utility model first embodiment's a linkage structure schematic representation.

Accompanying drawing 2 is the disintegration figure of Fig. 1.

Accompanying drawing 3 is the 2nd embodiment's a structural representation.

Embodiment 1: present embodiment be used to manage, the connection between the pipe fitting.Former bellmouth end at pipe 1 has trapezoidal thread, connected tube 1 and 4 internal diameters in the joint equate, moving casing 10 has internal thread and is connected with the outside thread of pipe 1 end, sealing lining ring 6 is enclosed within the non-threaded end of pipe 4, and between the non-threaded end of moving casing 10 and pipe 4, leave gap 7, in the process that moving casing 10 tightens, will seal lining ring 6 compressions, make it axially and radially produce distortion, to manage 1, surface of contact between 4 and gap 7 sealings, guarantee the sealing of whole pipeline operation, because gapped 7 existence, pipeline can be resisted certain axial and distortion radially.

Embodiment 2: present embodiment is pipe, the disconnected sealing with joint of pipe fitting, former bellmouth end at pipe or pipe fitting 15 is provided with outside thread, movable end cover 16 has internal thread, the outside thread of movable end cover 16 with pipe or pipe fitting 15 former bellmouths is connected, and will seal lining ring be pressed in the lump movable end cover 16 tightened after, can should disconnectedly use joint sealing.

Claims

1, the flexible union on indoor iron drain-pipe road, contain various iron drain-pipes, pipe fitting and seal element, it is characterized by: the former bellmouth end at iron drain-pipe, pipe fitting has outside thread, iron drain-pipe, pipe fitting equate at the internal diameter of joint, and be provided with in the joint and have the movable sheath that internal thread is connected with the outside thread of pipe, the former bellmouth of pipe fitting end and save.

2, flexible union as claimed in claim 1 is characterized by: described movable sheath joint is the moving casing of bilateral, seal element is enclosed within the non-threaded end of connected tube, pipe fitting, and leaves the gap between the non-threaded end of moving casing and connected tube, pipe fitting.

3, flexible union as claimed in claim 1 is characterized by: described movable sheath joint is the movable end cover of end sealing.

4, claim 1,2,3 described flexible unions, it is characterized by: the screw thread of being opened is a trapezoidal thread.