CN218916784U

CN218916784U - Segment supporting device

Info

Publication number: CN218916784U
Application number: CN202222856809.7U
Authority: CN
Inventors: 赵阳; 资谊; 张庆芸; 宋子含; 王少锋; 方若全; 周航; 何绪虎
Original assignee: Jiangsu Province Transportation Engineering Construction Bureau; Southwest Jiaotong University; China Railway Siyuan Survey and Design Group Co Ltd
Current assignee: Jiangsu Province Transportation Engineering Construction Bureau; Southwest Jiaotong University; China Railway Siyuan Survey and Design Group Co Ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-04-25
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a duct piece supporting device, which belongs to the technical field of synchronous grouting test equipment and comprises two inclined plane supporting mechanisms which are symmetrically arranged, wherein each inclined plane supporting mechanism comprises a base, a supporting plate and a telescopic structure, one end of the supporting plate is hinged with the base, one end of the telescopic structure is hinged with the base, the other end of the telescopic structure is hinged with the other end of the supporting plate, and the telescopic structure is used for pushing the supporting plate to rotate around a hinge point of the supporting plate and the base in a plane so as to change the inclination angle of the supporting plate. The pipe piece supporting device supports two side walls of the pipe piece by adopting the inclined planes with the adjustable inclined angles, reduces the risk of damage caused by overlarge local pressure bearing of the pipe piece, and simultaneously, the radial deformation of the pipe piece under normal working conditions can be simulated by the fact that the inner ring surface of the pipe piece is free of support, so that the pressure bearing deformation situation of the pipe piece in the soil body can be simulated more truly.

Description

Segment supporting device

Technical Field

The utility model relates to the technical field of synchronous grouting test equipment, also relates to the technical field of arc-shaped piece supporting equipment, and particularly relates to a duct piece supporting device.

Background

The synchronous grouting test device is a test device for simulating the grouting process of an annular gap between a pipe piece and a soil body, the existing simulation test device usually forms the gap in a drawing-away mode, namely a shield shell model is arranged outside the pipe piece, soil is filled outside the shield shell model, then the shield shell model is drawn away to enable a gap to be formed between the soil body and the pipe piece, and finally grouting operation is carried out on the gap. In general, a plurality of duct pieces are connected into an annular structure for testing, each duct piece is connected through bolts, the bearing part of the duct piece is arranged on the outer annular surface and two side walls, and the bearing part is consistent with the actual working condition, but in order to reduce the equipment size of the simulation device, part of the test device starts to simulate the duct piece by adopting a single duct piece, the fixing and supporting of the duct piece are involved, a supporting platform is arranged in a conventional mode, if the arc-shaped platform is adopted for supporting, as shown in fig. 1, the inner annular surface of the duct piece is attached to the supporting platform, the radial deformation of the duct piece under the normal working condition cannot be simulated, and if the platform in a plane form is adopted for supporting, the stress of the diamond edges at the two ends of the duct piece is extremely easy to damage.

Disclosure of Invention

In view of the above, the utility model aims to provide a duct piece supporting device which supports two side walls of a duct piece, reduces the risk of damage caused by overlarge local pressure bearing of the duct piece, and can simulate radial deformation under normal working conditions without support on the inner annular surface of the duct piece.

The technical scheme of the utility model is as follows:

the utility model provides a section of jurisdiction strutting arrangement, includes the inclined plane supporting mechanism that two symmetries set up, and every inclined plane supporting mechanism all includes base, backup pad and extending structure, and the one end and the base of backup pad are articulated, and extending structure's one end is articulated with the other end of base, the other end and backup pad for thereby promote the backup pad and rotate the inclination who changes the backup pad around the pin joint of backup pad and base in a plane.

As a specific implementation mode of the utility model, the supporting device is also matched with bolts for fixing the two ends of the duct piece with the supporting plates. Specifically, be equipped with straight notch in the backup pad, the one end of bolt is connected with the nut after passing the bolt hole of straight notch and section of jurisdiction.

As a specific embodiment of the present utility model, the two bevel support mechanisms are connected via a telescoping device.

As a specific embodiment of the utility model, in order to ensure that the supporting plate rotates in one plane, the total number of hinge points of the supporting plate, the base and the telescopic structure in each inclined plane supporting mechanism is not less than three, and at least three hinge points are not on the same straight line. In the implementation, two or more telescopic structures can be arranged, the number of the support plates connected with the base is more than one, and the specific number is not limited; the number of the telescopic structures is more than one, and the specific number is not limited.

In addition, the telescopic structure adopts a hydraulic telescopic structure, liquid driving is adopted for telescopic, and especially when one inclined plane supporting mechanism comprises a plurality of telescopic structures, the problem of blocking caused by different telescopic quantities of the telescopic structures is avoided by adopting the hydraulic telescopic structure.

The utility model has the technical effects that:

the pipe piece supporting device adopts the two inclined planes with adjustable inclined angles to support the two side walls of the pipe piece, reduces the risk of damage caused by overlarge local pressure bearing of the pipe piece, and simultaneously, the radial deformation of the pipe piece under normal working conditions can be simulated by the fact that the inner ring surface of the pipe piece is free of the support, so that the pressure bearing deformation situation of the pipe piece in a soil body can be simulated more truly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a prior art segment support table;

FIG. 2 is a schematic view of the structure of a segment;

FIG. 3 is a schematic view showing the whole structure of a segment supporting apparatus according to embodiment 1;

FIG. 4 is a schematic view of a bevel support mechanism according to embodiment 1

In the figure, a duct piece 1, a supporting table 2, an inclined plane supporting mechanism 3, a telescopic device 4, a guide rail 5,

Bolt hole 101, inner annular surface 102, side wall 103,

Base 301, telescopic structure 302, support plate 303, segment bolt 304,

A locking screw 3011 and a straight slot 3031.

Detailed Description

The present utility model will be described in further detail with reference to the following examples and drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model as claimed, but is merely representative of selected embodiments of the utility model.

Example 1

Referring to fig. 2, fig. 2 is a schematic structural diagram of a segment, and segment 1 is arc-shaped and includes an inner annular surface 102, an outer annular surface and two side walls 103, wherein the outer annular surface is opposite to the inner annular surface 102, and the two side walls 103 are respectively provided with bolt holes 101, so that adjacent segments are connected by bolts.

Referring to fig. 3, fig. 3 is a schematic view of the whole structure of the duct piece supporting device. This section of jurisdiction strutting arrangement includes the inclined plane supporting mechanism 3 that two symmetries set up, inclined plane supporting mechanism 3 is connected through telescoping device 4 (telescopic link), can adjust the distance of two inclined plane supporting mechanisms 3 through changing telescoping device's length during the use, so as to support section of jurisdiction 1 of different width, simultaneously in order to make two inclined plane supporting mechanisms 3 follow sharp removal, this device still is equipped with guide rail 5, two inclined plane supporting mechanisms 3 remove along guide rail 5, in order to avoid inclined plane supporting mechanism 3 to remove in the test process, inclined plane supporting mechanism 3 still is equipped with locking screw 3011, locking bolt passes locking screw 3011 and compresses tightly track 5, thereby fix inclined plane supporting mechanism 3 on track 5.

Referring to fig. 4, fig. 4 is a schematic structural view of the bevel support mechanism. Each of the bevel support mechanisms 3 includes a base 301, a telescopic structure 302, and a support plate 303. The lower extreme of backup pad 303 articulates with base 301, and every inclined plane supporting mechanism 3 of this embodiment all is provided with two extending structure 302, all is hydraulic telescoping rod, and two extending structure 302 parallel arrangement, and the one end of every extending structure 302 articulates with base 301, the other end articulates with the upper end of backup pad 303 to promote backup pad 303 to rotate in a plane around the pin joint of backup pad 303 and base 301, can adjust the inclination of backup pad 303 through the length of changing extending structure 302, with the angle of adaptation section of jurisdiction 1 lateral wall 103 (the section of jurisdiction of different diameters and the inclination of lateral wall are different), make backup pad 303 laminating with section of jurisdiction 1 lateral wall 103.

In addition, the support plate 303 is provided with a straight slot 3031, and one end of the segment bolt 304 passes through the straight slot 3031 and the bolt hole 101 of the segment 1 and is locked by a nut, so that two ends of the segment 1 are tightly fixed on the two inclined plane support mechanisms 3.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model disclosed in the embodiments of the present utility model should be covered by the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. The utility model provides a section of jurisdiction strutting arrangement, its characterized in that includes two inclined plane supporting mechanisms that the symmetry set up, every inclined plane supporting mechanism all includes base, backup pad and extending structure, wherein, the one end of backup pad with the base articulates, extending structure's one end with the base articulates, the other end with the other end of backup pad articulates, is used for promoting the backup pad is around the articulated point of backup pad and base rotates in a plane.

2. The duct piece support device according to claim 1, wherein the support device is further provided with bolts for fixedly connecting both ends of the duct piece with the support plates.

3. The duct piece supporting device according to claim 2, wherein the supporting plate is provided with a straight notch, and one end of the bolt passes through the straight notch and the bolt hole of the duct piece and then is connected with the nut.

4. A duct piece support device according to claim 1, wherein the two inclined plane support mechanisms are connected via a telescopic device.

5. The duct piece support device according to claim 1, wherein the total number of hinge points of the support plate, the base and the telescopic structure in each inclined plane support mechanism is not less than three, and at least three hinge points are not on the same straight line.

6. The duct piece support device of claim 5, wherein there are at least two telescoping structures.

7. The duct piece support device of claim 6, wherein the telescoping structure is a hydraulic telescoping structure.