CN203395376U

CN203395376U - Flexible joint steel structure relaying chamber device

Info

Publication number: CN203395376U
Application number: CN201320462183.XU
Authority: CN
Inventors: 李欣
Original assignee: TIANJIN CHAOWEI JACK CO Ltd
Current assignee: TIANJIN CHAOWEI JACK CO Ltd
Priority date: 2013-07-31
Filing date: 2013-07-31
Publication date: 2014-01-15
Anticipated expiration: 2023-07-31

Abstract

The utility model relates to a flexible joint steel structure relaying chamber device. The flexible joint steel structure relaying chamber device comprises a steel bearing port, an external casing, jacks, seal rings, an insertion port ring and an insertion port, wherein the insertion port ring and the insertion port are coaxially and fixedly arranged; the jacks are radially and evenly distributed on the inner edge of the external casing, which is between the insertion port and the steel bearing port; a front buffer cushion is mounted between the front end surfaces of the jacks and the steel bearing port, and a rear buffer cushion is mounted between the rear end surfaces of the jacks and the insertion port; the front edge of the insertion port ring is provided with sealing grooves matched with the bearing port of a concrete pipe. The flexible joint steel structure relaying chamber device is characterized in that a circumferential rib plate is welded inside the insertion port ring. The flexible joint steel structure relaying chamber device is mounted on a certain position of a one-step jacking pipeline, and the section of the one-step jacking pipeline is divided into a plurality of jacking intervals; during the jacking process, pipes are firstly jacked at a small distance by a plurality of relaying chambers, then a main jacking oil cylinder jacks the pipes of the last interval, so that the design is scientific and reasonable.

Description

A kind of flexible joint steel structure relay well device

Technical field

The utility model belongs to the fields such as municipal engineering, public waterworks, project of South-to-North water diversion, gas works, communication engineering, relates to the push pipe relay well of long distance or extra long distance jacking construction, especially a kind of flexible joint steel structure relay well device.

Background technique

Long-distance pipe jacking refers to all jacking constructions more than 200m-300m of the continuous distance advancing of each section, reached at the 800m-1500m having.Because one-time continuous advance distance is longer, there are many differences with ordinary topping pipe construction, also just having factors has the effect of restriction to long-distance pipe jacking.And research to long-distance pipe-jacking construction is namely studied these differences and is sought to solve the way of multiple restriction.Although long-distance pipe jacking adopts mud lubrication measure can reduce jacking frictional resistance, no matter what degree is top power reduce to, is subject to certain restrictions after all.In jack-in process, when back intensity or pipe bearing capacity are restricted, whole jacking sections can be divided into some sections and adopt relay jackings, can reach the object that extends apex distance.

Relay well is inner several relaying jack of installing in ，Gai working room, relay jacking working room that arrange in the middle of jacking pipeline section, undertakes pipeline section jacking before between interruption.Interrupt jack and advance above after pipeline section, main pressure jack advances between interruption pipeline section below again, and the method for this kind of segmentation relay jacking, is called the jacking of interruption indirect force.At present, in all jacking constructions, concrete pipe push pipe adopts two kinds of methods to carry out jacking construction mostly: 1, even without underground water, adopt this kind of method to construct underground water is not prosperous more; 2, adopting many methods is that working pipe adopts undergauge one segment distance, according to jack stroke between interrupting, determines, and diameter dimension is changed by the wall thickness of sleeve and the height of rubber seal.Due in jacking construction, mostly adopt flexible joint steel joint socket, so the diameter dimension of concrete pipe is as less in its relay well working pipe requires to change at diameter dimension, sleeve is all right with coordinating of rubber seal, sealing effect is all right.When making working pipe, pipe die needs to change, pipe die manufacture itself there is deviation, but because sleeve and seal ring are back and forth frequently flexible at work, simultaneously due to the variation of concrete work pipe diameter dimension, make seal ring on diameter, compress inhomogeneous and easily make seals damaged.Once seal destroyedly, can cause underground water to flow in construction pipeline, simultaneously can make push pipe form roadbed subsidence along the line, if also may cause and cannot construct close to from building.

Model utility content

The purpose of this utility model is to overcome the deficiency existing in above-mentioned technology, provide a kind of simple in structure, fabricating cost is low, good seal performance, quick and easy for installation, simple to operate, intensity is high and need not change the flexible joint steel structure relay well device of pipe die.

The utility model solves its technical problem and is achieved through the following technical solutions:

A kind of flexible joint steel structure relay well device, comprise steel bellmouth, outer sleeve, jack, seal ring, socket ring and socket, outer sleeve and socket coaxially arrange, socket ring and socket are coaxially fixedly installed, outer sleeve inward flange radial equipartition between socket and steel bellmouth is provided with jack, between the front-end face of this jack and steel bellmouth, front cushion pad is installed, rear cushion pad is installed between the ear end face of jack and socket; The front outer of socket ring is shaped with the sealed groove matching with the socket of concrete plug, it is characterized in that: in described socket ring, be welded with hoop gusset.

And described steel bellmouth is shaped with reinforcement gusset, this reinforcement gusset comprises radial reinforced rib plate and cross reinforcing plate.

Advantage of the present utility model and beneficial effect are:

1, this device is arranged on certain position of a jacking pipe, jacking pipeline of this section is divided into several to be advanced interval, in jack-in process, after first pipe being advanced to a bit of distance by several relay wells by priority program, by main top oil cylinder, push away last interval tubing again, design science is reasonable.

2, this device is divided into several push pipes intervals one push pipe, and overall structure is simple, good manufacturability, and good sealing effect can reach perfectly safe under complicated geological condition as when high hydraulic pressure, underground water or earthing are dark especially.

3, this device has improved original seal arrangement, can disposablely in workshop, carry out machining, and miscellaneous part as socket, steel bellmouth be also to complete by machining means, not only water level carries out jacking construction on the ground, can also under level of ground water, carry out jacking construction, the jacking construction such as cross the river as passed by one's way.

Accompanying drawing explanation

Fig. 1 is structural front view of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.

A kind of flexible joint steel structure relay well device, comprise steel bellmouth 1, outer sleeve 2, jack 4, seal ring 6, socket ring 7 and socket 9, outer sleeve and socket coaxially arrange, socket ring and socket are coaxially fixedly installed, outer sleeve inward flange radial equipartition between socket and steel bellmouth is provided with jack, front cushion pad 3 is installed between the front-end face of this jack and steel bellmouth, rear cushion pad 5 is installed between the ear end face of jack and socket; The front outer of socket ring is shaped with the sealed groove 10 matching with the socket of concrete plug, and the present embodiment accompanying drawing is twice; Socket ring outer rim in outer sleeve is provided with seal ring, and the present embodiment accompanying drawing is twice.

Innovative point of the present utility model is:

1, in described socket ring, be welded with hoop gusset 8, strengthened thus the intensity of socket ring, realize when jacking construction, steel bellmouth and seal ring place intensity are larger, can not produce distortion.

2, described steel bellmouth is shaped with and strengthens gusset 11, and this reinforcement gusset comprises radial reinforced rib plate and cross reinforcing plate, the huge top power that makes thus to bear jack He promote mainly oil cylinder, the distortion that can't produce socket.

Claims

1. a flexible joint steel structure relay well device, comprise steel bellmouth, outer sleeve, jack, seal ring, socket ring and socket, outer sleeve and socket coaxially arrange, socket ring and socket are coaxially fixedly installed, outer sleeve inward flange radial equipartition between socket and steel bellmouth is provided with jack, between the front-end face of this jack and steel bellmouth, front cushion pad is installed, rear cushion pad is installed between the ear end face of jack and socket; The front outer of socket ring is shaped with the sealed groove matching with the socket of concrete plug, it is characterized in that: in described socket ring, be welded with hoop gusset.

2. flexible joint steel structure relay well device according to claim 1, is characterized in that: described steel bellmouth is shaped with reinforcement gusset, and this reinforcement gusset comprises radial reinforced rib plate and cross reinforcing plate.