CN214574012U

CN214574012U - Groove box supporting device

Info

Publication number: CN214574012U
Application number: CN202120543064.1U
Authority: CN
Inventors: 吴远婷; 罗元勋; 贾登忠; 张志华
Original assignee: Guizhou Zhongsheng Donghao Technology Co ltd
Current assignee: Guizhou Zhongsheng Donghao Technology Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-11-02
Anticipated expiration: 2031-03-16

Abstract

The utility model discloses a trench box supporting device, include two blocks of backplate that match and the symmetry sets up with slot both sides inner wall, set up the stull between two blocks of backplate, the stull both ends rotate with two supporting plates respectively and are connected, are equipped with the arc structure at the stull middle part. After the groove is excavated, the design is hoisted into the groove, the outer side surfaces of the two supporting plates are attached to the inner wall of the groove, and the groove is supported by the cross braces under stress. The utility model has simple structure, low cost, convenient and fast assembly and disassembly, high efficiency of constructors, flexible adjustment and wide application range; the middle part of the cross brace is set into an arc structure, so that the supporting strength and rigidity of the cross brace are effectively improved, and the interference with an underground pipeline can be avoided, so that the cross brace can be arranged on the upper section and the lower section of the supporting plate for at least two pieces, the stress uniformity of the supporting plate is good, the stability of the supporting structure is good, and the construction safety is good.

Description

Groove box supporting device

Technical Field

The utility model relates to a trench box supporting device belongs to civil engineering technical field.

Background

At present, the construction of underground pipelines usually adopts a construction scheme of slotting and pipe burying, in order to avoid the damage of landslide or collapse of a slot wall during slotting, a slot supporting system needs to be arranged after the slot is excavated, and the slot supporting system comprises a natural slope, an earth nail reinforced equilateral slope type slot, straight slot type slots such as channel steel/steel plate piles and reinforced concrete row piles, or a slot box type slotting shield structure. The slope type groove is convenient to construct, but has poor stability; the straight groove type groove is large in volume and mass, and low in installation efficiency; compared with the former two types, the trench box type slotting shield structure has the advantages of being fast to assemble and disassemble, high in construction efficiency, more economical in equipment utilization rate and the like, and is widely applied.

The existing trench box type slotting shield structure comprises two supporting and protecting plates which are matched with the inner walls of two sides of a trench, and a cross brace is arranged between the two supporting and protecting plates. During construction, after grooving, two supporting and protecting plates of the groove box type grooving shield structure are adopted to tightly support the inner walls of the two sides of the groove, the groove is supported by the stress of the cross brace, and then the groove is placed into a pipeline. In order to prevent that the stull from interfering the pipeline, the stull setting is upper segment in the supporting plate usually, and this structure leads to supporting plate lower part atress comparatively weak, can't carry out the slot better and strut, and stability is not enough, has certain potential safety hazard.

Disclosure of Invention

In view of this, the utility model aims at providing a grooved case supporting device is particularly useful for ecological bank protection, can overcome the not enough of prior art.

The utility model aims at realizing through the following technical scheme:

the utility model provides a ditch case supporting device, includes two blocks of backplate that match and the symmetry sets up with slot both sides inner wall, sets up the stull between two blocks of backplate, the stull both ends rotate with two blocks of backplate respectively and are connected, are equipped with the arc structure at the stull middle part.

The cross brace is provided with at least two pieces, and comprises an upper cross brace arranged on the upper section of the supporting plate and a lower cross brace arranged on the lower section of the supporting plate, and an arc-shaped structure is arranged in the middle of the lower cross brace at least.

The two ends of the cross brace are rotatably connected with connecting blocks, the connecting blocks are provided with mounting holes, the opposite sides of the two supporting plates are provided with connecting seats, the connecting seats are provided with a plurality of vertical adjusting holes matched with the mounting holes, the connecting blocks at the two ends of the cross brace are connected with the supporting plate through bolts, and the relative mounting height of the cross brace is adjusted through the vertical adjusting holes.

The cross brace is a telescopic rod structure.

The cross brace comprises a middle arc-shaped rod, adjusting rod sections are arranged at two ends of the middle arc-shaped rod, and a plurality of transverse adjusting holes are formed in the adjusting rod sections; the adjusting rod section is sleeved with the inserting pipe, the inserting pipe is provided with a connecting hole matched with the transverse adjusting hole, the inserting pipe is connected with the middle arc-shaped rod through a bolt, and the relative telescopic amount of the inserting pipe is adjusted through the transverse adjusting hole.

The end part of the insertion pipe is provided with a clamping joint, and the connecting block is provided with a clamping ring matched with the clamping joint, so that the insertion pipe is rotatably connected with the connecting block.

Compared with the prior art, the utility model discloses a trench box supporting device, it includes two blocks of backplate that match and the symmetry sets up with slot both sides inner wall, sets up the stull between two blocks of backplate, the stull both ends rotate with two supporting plates respectively and are connected, are equipped with the arc structure at the stull middle part. After the groove is excavated, the design is hoisted into the groove, the outer side surfaces of the two supporting plates are attached to the inner wall of the groove, the groove is supported by the cross brace under stress, the middle part of the cross brace is provided with an arc-shaped structure, and the cross brace is rotatably connected with the supporting plates; after the underground pipeline is placed into the groove box, the underground pipeline can be clamped at the position of the arc-shaped structure, the pipeline is prevented from interfering with the cross brace, and when the groove box is dismantled, the cross brace can be rotated to enable the arc-shaped structure to turn upwards, so that the groove box can be hoisted to be dismantled.

The utility model has the advantages that:

(1) the utility model has simple structure, low cost, convenient and fast assembly and disassembly, high efficiency of constructors, flexible adjustment and wide application range;

(2) the middle part of the cross brace is set into an arc structure, so that the supporting strength and rigidity of the cross brace are effectively improved, and the interference with an underground pipeline can be avoided, so that the cross brace can be arranged on the upper section and the lower section of the supporting plate for at least two pieces, the stress uniformity of the supporting plate is good, the stability of the supporting structure is good, and the construction safety is good.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of the present invention (embodiment one).

Fig. 2 is a schematic structural diagram of the present invention (embodiment two).

Fig. 3 is a schematic perspective view of fig. 1.

Fig. 4 is a schematic view of the cross brace shown in fig. 1.

Fig. 5 is a schematic view of the structure of the middle arc rod of fig. 4.

Fig. 6 is a schematic view of the structure of the bayonet tube as in fig. 4.

Fig. 7 is a schematic view of the structure of the connecting block as in fig. 4.

Fig. 8 is a first construction flow chart of the present invention.

Fig. 9 is a second construction flow chart of the present invention.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for purposes of illustration only and are not intended to limit the scope of the present invention.

As shown in fig. 1-7, a supporting device for a trench box comprises two supporting plates 1 which are matched with the inner walls of two sides of a trench and are symmetrically arranged, a cross brace 2 is arranged between the two supporting plates 1, two ends of the cross brace 2 are respectively rotatably connected with the two supporting plates 1, and an arc-shaped structure is arranged in the middle of the cross brace 2.

The cross braces 2 are at least two pieces of setting, including arranging the last cross brace of the upper segment of supporting plate 1 and arranging the lower cross brace of the lower segment of supporting plate 1. In order to save the construction cost, an arc-shaped structure is only arranged in the middle of the lower cross brace.

Rotate at 2 both ends of stull and be connected with connecting block 201, be equipped with mounting hole 2011 on connecting block 201, be provided with connecting seat 101 at two opposite sides of propping up backplate 1, be equipped with a plurality ofly on connecting seat 101 with mounting hole 2011 assorted vertical regulation hole 1011, make stull 2 link firmly on the connecting seat 101 of propping up the backplate through the bolt, and can adjust the relative mounting height of stull 2 through vertical regulation hole 1011, when guaranteeing that backplate 1 has good support intensity, satisfy the downcomer installation of different pipe diameters and use.

The cross arm 2 is of a telescopic rod structure. Preferably, the cross brace is formed by splicing a plurality of sections of connecting rods, and the connecting rods are of arc-shaped structures in the middle position.

Specifically, the wale 2 includes a middle arc-shaped rod 202, adjusting rod sections 2021 are disposed at two ends of the middle arc-shaped rod 202, and a plurality of transverse adjusting holes 2022 are disposed on the adjusting rod sections 2021; the adjusting rod section 2021 is sleeved with the inserting pipe 203, the inserting pipe 203 is provided with a connecting hole 2031 matched with the transverse adjusting hole 2022, so that the inserting pipe 203 is sleeved on the adjusting rod section 2021 of the middle arc-shaped rod and fixedly connected through a bolt, the relative telescopic amount of the inserting pipe 203 can be adjusted through the transverse adjusting hole 2022, and the adjustable inserting pipe is suitable for groove support with different widths.

The end of the insertion tube 203 is provided with a clamping joint 2032, and the connecting block 201 is provided with a snap ring 2012 matched with the connecting block 201, so that the insertion tube 203 is rotatably connected with the connecting block 201.

See fig. 7 and 8, the specific workflow:

(1) assembling the groove box according to the size of the preset groove,

assembling the cross braces 2, adjusting the length of the cross braces 2 according to the width of a preset groove in the assembling process, and connecting and installing the two supporting and protecting plates 1 and the cross braces 2;

(2) digging a preset groove 3 along a design route;

(3) the inner walls of the two sides of the groove 3 are supported by hoisting the groove box at the excavation completion section in the excavation process,

wherein, while advancing and excavating the ditch along the design route, finish the supporting work of the ditch 3 step by step;

(4) synchronously, an underground pipeline 4 is placed in the middle of the groove box, and partial soil is backfilled;

(5) rotating the cross brace 2 to enable the arc-shaped structure to face upwards, and hoisting the trench box out by using a hoisting machine to complete all backfilling work;

(6) and the hoisted trench box is transported to a new excavation road section for reuse.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form, which is confidential, and any simple modification, equivalent change and modification made by the technical entity of the present invention to the above embodiments do not depart from the technical solution of the present invention.

Claims

1. The utility model provides a groove box supporting device, includes two blocks of backplate (1) that match and the symmetry sets up with slot both sides inner wall, sets up stull (2), its characterized in that between two blocks of backplate (1): the two ends of the cross brace (2) are respectively rotatably connected with the two supporting guard plates (1), and the middle part of the cross brace (2) is provided with an arc-shaped structure.

2. The trench box support apparatus of claim 1, wherein: the cross brace (2) is at least two pieces of setting, including arranging the last cross brace of a backplate (1) upper segment and arranging the lower cross brace at a backplate (1) hypomere to at least the middle part of cross brace is equipped with the arc structure down.

3. The trench box support apparatus according to claim 1 or 2, wherein: the connecting block (201) is rotationally connected with at stull (2) both ends, be equipped with mounting hole (2011) on connecting block (201), be provided with connecting seat (101) at the opposite side of two backplate (1), be equipped with on connecting seat (101) a plurality of with mounting hole (2011) assorted vertical adjustment hole (1011), make connecting block (201) and backplate (1) bolted connection at stull both ends to adjust the relative mounting height of stull (2) through vertical adjustment hole (1011).

4. The trench box support apparatus of claim 3, wherein: the cross brace (2) is of a telescopic rod structure.

5. The trench box support apparatus of claim 4, wherein: the cross brace (2) comprises a middle arc-shaped rod (202), adjusting rod sections (2021) are arranged at two ends of the middle arc-shaped rod (202), and a plurality of transverse adjusting holes (2022) are formed in the adjusting rod sections (2021); the adjusting rod section (2021) is sleeved with the inserting pipe (203), the inserting pipe (203) is provided with a connecting hole (2031) matched with the transverse adjusting hole (2022), so that the inserting pipe (203) is in bolt connection with the middle arc-shaped rod (202), and the relative telescopic amount of the inserting pipe (203) is adjusted through the transverse adjusting hole (2022).

6. The trench box support apparatus of claim 5, wherein: the end part of the insertion pipe (203) is provided with a clamping joint (2032), and the connecting block (201) is provided with a clamping ring (2012) matched with the connecting block, so that the insertion pipe (203) is rotatably connected with the connecting block (201).