CN220792274U - Relay device of rectangular push bench - Google Patents

Abstract

The utility model discloses a relay device of a rectangular push bench, which comprises: the front section of back casing inserts in the front casing, just the back casing can slide in the front casing, be provided with flexible seal assembly between front casing and the back casing back end, all fixedly connected with erection column on the back end of front casing and back casing, flexible seal assembly includes outer rubber elastic band, outer rubber elastic band is connected with interior rubber elastic band through two rubber strengthening ribs, outer rubber elastic band passes through the binding band to be fixed on the erection column, interior rubber elastic band passes through the annular plate to be fixed on the erection column. According to the utility model, when the jacking pipe work is carried out between the relay, the distance between the front shell and the rear shell is increased, so that the telescopic sealing assembly is lengthened, external soil and underground water are still isolated, and the problem that the jacking stroke between the relay is reduced due to the fact that soil is extruded between the front shell and the rear shell is prevented.

Description

Relay device of rectangular push bench

Technical Field

The utility model relates to the technical field of relay stations, in particular to a relay station device of a rectangular push bench.

Background

Relay stations, or relay rings. The structure of the relay is mainly composed of a shell, an oil cylinder, a sealing element and the like. The oil supply method between relays is generally to install a relay oil pump near the relay. In the jacking process, the relay room is arranged at a certain position in the pipeline, and the pipeline is divided into a plurality of jacking sections.

The front and rear shells of the relay are installed in a sliding manner in opposite insertion, the front and rear shells are relatively displaced in the jacking process of the relay, a large amount of soil can be carried on the rear shells when the rear shells retract due to the soil layer sedimentation and other problems, and after the rear shells reciprocate in this way, a jacked soil layer exists between the front shells and the rear shells of the relay, so that the jacking stroke of the relay is shortened, and meanwhile, the oil cylinder is not beneficial to work.

Disclosure of utility model

The utility model aims to provide a relay device of a rectangular push bench, which aims to solve the defects in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions: an inter-relay device of a rectangular push bench, comprising: the front section of back casing inserts in the front casing, just the back casing can slide in the front casing, be provided with flexible seal assembly between front casing and the back casing back end, all fixedly connected with erection column on the back end of front casing and back casing, flexible seal assembly includes outer rubber elastic band, outer rubber elastic band is connected with interior rubber elastic band through two rubber strengthening ribs, outer rubber elastic band passes through the binding band to be fixed on the erection column, interior rubber elastic band passes through the annular plate to be fixed on the erection column.

Further, one end of the mounting column, which is far away from the binding hoop, is in a truncated cone shape.

Further, a woven rubber belt is arranged between the two rubber reinforcing ribs, and the woven rubber belt is of a net-shaped structure.

Further, the two ends of the back sections of the front shell and the back shell, which are close to each other, are fixedly connected with mud discharging plates, the outer walls of the two mud discharging plates, which are close to one end of each other, are all provided with smooth curved surfaces, and the mud discharging plates are sleeved on the outer rubber elastic bands.

Further, a movable sealing ring is arranged between the inner wall of the front shell and the outer wall of the front section of the rear shell.

Further, the inner wall of the front shell and the inner wall of the rear segment of the rear shell are both provided with reinforcing bins, and a plurality of reinforcing ribs are welded in the reinforcing bins.

Further, eight grouting holes are formed in the front shell.

In the technical scheme, the inter-relay device of the rectangular push bench has the beneficial effects that:

According to the utility model, the telescopic sealing assembly is arranged between the rear sections of the front shell and the rear shell to isolate external soil from underground water, namely, when the jacking pipe work is carried out between the relays, the distance between the front shell and the rear shell is increased, so that the telescopic sealing assembly is lengthened, the external soil and the underground water are still isolated, the problem that the jacking stroke between the relays is reduced due to the fact that the soil is extruded between the front shell and the rear shell is solved, and meanwhile, the loss caused by incomplete work of the oil cylinder is reduced.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all of the features of the technology disclosed.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of a structure provided in an embodiment of the present utility model;

FIG. 2 is a front cross-sectional view of an embodiment of the present utility model;

fig. 3 is an enlarged view of fig. 2A provided in an embodiment of the present utility model.

Reference numerals illustrate:

1. A front housing; 2. a rear housing; 3. a telescoping seal assembly; 31. an outer rubber elastic band; 32. an inner rubber elastic band; 33. rubber reinforcing ribs; 34. braiding a rubber belt; 4. a reinforcing bin; 41. reinforcing ribs; 5. an oil cylinder; 6. a mud-removing plate; 7. a mounting column; 8. grouting holes; 9. binding and tightening; 99. an annular plate; 10. and (5) moving a sealing ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Referring to FIGS. 1-3, an inter-relay device for a rectangular push bench, comprising: the front section of the rear shell 2 is inserted into the front shell 1, the rear shell 2 can slide in the front shell 1, a telescopic sealing assembly 3 is arranged between the front shell 1 and the rear section of the rear shell 2, the front shell 1 and the rear section of the rear shell 2 are fixedly connected with mounting posts 7, the telescopic sealing assembly 3 comprises an outer rubber elastic band 31, the outer rubber elastic band 31 is connected with an inner rubber elastic band 32 through two rubber reinforcing ribs 33, the outer rubber elastic band 31 is fixed on the mounting posts 7 through a binding hoop 9, and the inner rubber elastic band 32 is fixed on the mounting posts 7 through an annular plate 99.

Specifically, the telescopic sealing assembly 3 is arranged into two layers of the outer rubber elastic band 31 and the inner rubber elastic band 32, the outer rubber elastic band 31 and the inner rubber elastic band 32 are connected through the rubber reinforcing ribs 33, so that when the outer rubber elastic band 31 is extruded by soil, the outer rubber elastic band 31 can be buffered inwards, meanwhile, after the outer rubber elastic band 31 is scratched by broken stones, the outer rubber elastic band 31 can infiltrate into a space formed by the outer rubber elastic band 31 and the inner rubber elastic band 32, at the moment, the inner rubber elastic band 32 can play a role of isolating groundwater, the outer rubber elastic band 31 is locked on the outer side of the mounting column 7 by the binding hoop 9, and the inner rubber elastic band 32 is extruded on the inner side of the mounting column 7 by utilizing the plurality of annular plates 99 after passing through the annular plates 99 and the inner rubber elastic band 32; according to the utility model, the telescopic sealing assembly 3 is arranged between the rear sections of the front shell 1 and the rear shell 2 to isolate external soil from underground water, namely, when the jacking pipe work is carried out between the relays, the distance between the front shell 1 and the rear shell 2 is increased, so that the telescopic sealing assembly 3 is lengthened, the external soil and the underground water are still isolated, the problem that the jacking stroke between the relays is reduced due to the fact that the soil is extruded between the front shell 1 and the rear shell 2 is prevented, and meanwhile, the loss caused by incomplete work of the oil cylinder 5 is reduced.

Further, the end of the mounting post 7 remote from the binding 9 is in the shape of a truncated cone.

Specifically, referring to fig. 2 and 3, the height of one side of the circular truncated cone shape of the mounting column 7 is higher than the height of the sleeving position of the fastening hoop 9, so that groundwater is more difficult to enter the relay room, and a better sealing effect is achieved.

Further, a braided rubber belt 34 is provided between the two rubber ribs 33, and the braided rubber belt 34 has a net structure.

Specifically, referring to fig. 2 and 3, by providing the braided rubber tape 34 between the two rubber reinforcing ribs 33, the tensile strength of the telescopic sealing assembly 3 is increased, and simultaneously, the large sand entering from the outer rubber elastic tape 31 is filtered out, so that the damage of the sand to the inner rubber elastic tape 32 is reduced, and the sealing effect of the telescopic sealing assembly 3 is improved.

Further, the two ends of the back sections of the front casing 1 and the back casing 2, which are close to each other, are fixedly connected with mud discharging plates 6, the outer walls of the two mud discharging plates 6, which are close to each other, are all provided with smooth curved surfaces, and the mud discharging plates 6 are sleeved on the outer rubber elastic band 31.

Specifically, referring to fig. 2 and 3, when the relay is jacked in, the mud discharging plate 6 mounted on the front housing 1 has a guiding effect on the soil layer, so that the soil layer smoothly contacts the outer rubber elastic band 31, and the damage capability of the soil layer to the outer rubber elastic band 31 is reduced; when the rear housing 2 is pushed forward by the hydraulic means, the mud discharging plate 6 on the rear section of the rear housing 2 can play a role of discharging the soil layer so that the soil layer is not excessively accumulated on the outer surface of the outer rubber elastic band 31, thereby reducing the push-in resistance.

Further, a movable seal ring 10 is provided between the inner wall of the front case 1 and the outer wall of the front section of the rear case 2.

Specifically, referring to fig. 2, by providing the movable seal ring 10, a small amount of groundwater which is not isolated by the telescopic seal assembly 3 can be isolated, and the sealing effect between relays can be enhanced.

Further, the inner wall of the front housing 1 and the inner wall of the rear section of the rear housing 2 are both provided with a reinforcing bin 4, and a plurality of reinforcing ribs 41 are welded in the reinforcing bin 4.

Specifically, referring to fig. 1, by providing the reinforcing ribs 41 in the reinforcing ribs 41, stability between relays is enhanced, and normal jacking operation is ensured.

Further, eight grouting holes 8 are formed in the front housing 1.

Specifically, referring to fig. 2, by providing the grouting holes 8, the slurry is injected between the relay and the soil layer through the grouting holes 8, so that the friction between the soil layer and the relay is reduced, the friction between the telescopic sealing assembly 3 and the soil layer is reduced, and the service life of the telescopic sealing assembly 3 is prolonged.

In the utility model, the front shell 1 and the pipeline arranged at the front end of the front shell 1 are pushed forward through the oil cylinder 5, so that the telescopic sealing assembly 3 is lengthened, then the rear shell 2 and the pipeline connected with the rear end of the rear shell 2 are pushed forward through the hydraulic device, the front section of the rear shell 2 slides forward in the front shell 1, the mud discharging plate 6 on the rear shell 2 discharges the soil layer, meanwhile, the telescopic sealing assembly 3 is retracted to the initial length, and the operation is repeated, so that the excavating work of the pipeline is completed.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (7)

1. An inter-relay device of a rectangular push bench, comprising: front housing (1) and back casing (2), its characterized in that: the front section of back casing (2) inserts in procapsid (1), just back casing (2) can slide in procapsid (1), be provided with flexible seal assembly (3) between procapsid (1) and the back casing (2) back end, all fixedly connected with erection column (7) on the back end of procapsid (1) and back casing (2), flexible seal assembly (3) include outer rubber elastic band (31), outer rubber elastic band (31) are connected with interior rubber elastic band (32) through two rubber strengthening ribs (33), outer rubber elastic band (31) are fixed on erection column (7) through binding hoop (9), interior rubber elastic band (32) are fixed on erection column (7) through annular plate (99).

2. The relay device of the rectangular push bench according to claim 1, wherein one end of the mounting column (7) far away from the binding hoop (9) is in a truncated cone shape.

3. The relay device of the rectangular push bench according to claim 2, wherein a woven rubber belt (34) is arranged between two rubber reinforcing ribs (33), and the woven rubber belt (34) is of a net structure.

4. The relay device of the rectangular push bench according to claim 2, wherein the two ends of the back section of the front housing (1) and the back housing (2) close to each other are fixedly connected with mud discharging plates (6), the outer walls of the two mud discharging plates (6) close to each other at one end are all provided with smooth curved surfaces, and the mud discharging plates (6) are sleeved on an outer rubber elastic belt (31).

5. The relay device of the rectangular push bench according to claim 1, wherein a movable sealing ring (10) is arranged between the inner wall of the front housing (1) and the outer wall of the front section of the rear housing (2).

6. The relay device of the rectangular push bench according to claim 1, wherein the inner wall of the front housing (1) and the inner wall of the rear section of the rear housing (2) are both provided with reinforcing bins (4), and a plurality of reinforcing ribs (41) are welded in the reinforcing bins (4).

7. The relay device of the rectangular push bench according to claim 1, wherein eight grouting holes (8) are formed in the front housing (1).