CN2389280Y

CN2389280Y - Inner pipe protective cover for directly buried type sleeve compensator

Info

Publication number: CN2389280Y
Application number: CN 99238586
Authority: CN
Inventors: 张文丁; 张士全; 阎育洲; 王小峰
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-21
Filing date: 1999-09-21
Publication date: 2000-07-26
Anticipated expiration: 2009-09-21

Abstract

The utility model relates to an inner pipe protective cover for directly buried type sleeve compensators, which comprises a fixed plate, sleeves and a sealing member, wherein the front sleeve is fixedly connected with the fixed plate, the rear part of the front sleeve is fixedly provided with the rear sleeve, and the appearance and the inner chambers of the front sleeve and the rear sleeve are both in the shape of a frustum. The flexible sealing member is arranged in the rear sleeve which is provided with compression screws, the utility model can reduce the inner pipe corrosion and the sand abrasion of directly buried type sleeve compensators, and the utility model has the characteristic of convenient installation and operation.

Description

Manage and protect cover in the directly buried type sleeve expansion joint

The utility model belongs to the protective equipment of compensator, relates in particular to the protective equipment of buried compensator.

Buried compensator in telescopic process because of the erosion that is subjected to underground moisture and with the friction of sandy soil, very easily cause the outer wall thickness attenuate, losing sealing causes revealing, in order to prevent the corrosion of sleeve compensator, adopt chromium plating and block cement pit laying method on outer wall of inner tube now, though but solved the anticorrosion problem of part, still can't resolve the problem of managing in the compensator with the sandy soil friction.

The purpose of this utility model provides and a kind ofly can reduce pipe in the directly buried type sleeve expansion joint and be corroded and by sand erosion, install, manage and protect cover in easy to use.

The purpose of this utility model is achieved through the following technical solutions:

Manage and protect cover in this kind directly buried type sleeve expansion joint, comprise fixed plate, sleeve and Sealing, sleeve is made up of front sleeve and back sleeve, front sleeve and fixed plate are fixed together, the rear portion of front sleeve is fixed with the back sleeve, front sleeve is taper type with the external form and the inner chamber of back sleeve, in the back sleeve flexible seals is arranged, and on the back sleeve housing screw is housed.

Described guard shield, the length of front sleeve is more than or equal to the flexible length of pipe in the compensator.

Described guard shield has 2 above tapped through holes on the back sleeve wall, the even cloth of tapped through hole is on the barrel of back sleeve.

Manage and protect cover in this directly buried type sleeve expansion joint, adopt two joint structures to increase the rigidity of guard shield, Sealing in the guard shield is to be contained in outside the interior pipe of compensator, therefore corrosion and the wearing and tearing of moisture and silt have been lowered greatly to pipe in the compensator, and this compensator is compared with the laying method of existing block cement pit, has more the advantage of time and labour saving and economic and practical.

Be described further below in conjunction with accompanying drawing and embodiment:

Fig. 1 is a sectional view of the present utility model;

Fig. 2 is that the A-A of Fig. 1 is to view.

Embodiment: managing and protecting in the directly buried type sleeve expansion joint on the fixed plate 5 of cover has fixed hole 5 ', be fixed with the front sleeve 4 of guard shield on the fixed plate 5, the rear portion of front sleeve 4 is fixed with back sleeve 2, the inner chamber and the external form of front sleeve 4 and back sleeve 2 are frustum type, the rear portion of front sleeve 4 puts in the sleeve 2 of back, the length L of front sleeve is equal to or greater than the length that pipe 8 stretches in the compensator of being adorned, in the back sleeve 2 flexible seals 3 is housed, flexible seals 3 is filling up in the inner chamber of back sleeve 2, make the portion of external of the front sleeve 4 among the sleeve 2 after being contained in, and sealing material all is equipped with in the pipe outside in the compensator, on the back sleeve 2 tapped through hole 2 ' is arranged, housing screw 1 is housed in the tapped through hole 2 ', and tapped through hole 2 ' should be more than two, and even cloth is on the barrel of back sleeve 2.

In use the interior pipe 8 of compensator is penetrated in the guard shield and from the center of flexible seals and pass, the fixed plate of guard shield is solidly installed by the flange 6 that fixed hole 5 ' and compensator overcoat 7 are fixed together, pipe can be closely connected in Sealing 3 and the compensator in order to make, the housing screw of turn downwards 1.

Claims

A directly buried type sleeve expansion joint in manage and protect cover, comprise fixed plate, sleeve and Sealing, it is characterized in that: sleeve is made up of front sleeve and back sleeve, front sleeve and fixed plate are fixed together, the rear portion of front sleeve is fixed with the back sleeve, front sleeve is taper type with the external form and the inner chamber of back sleeve, in the back sleeve flexible seals is arranged, and on the back sleeve housing screw is housed.
2. guard shield according to claim 1 is characterized in that: the length of front sleeve is more than or equal to the flexible length of pipe in the compensator.
3. guard shield according to claim 1 and 2 is characterized in that: on the sleeve wall of back 2 above tapped through holes are arranged, the even cloth of tapped through hole is on the barrel of back sleeve.