阅读说明：本技术 一种快速拆装基坑支撑结构 (Quick assembly disassembly foundation ditch bearing structure ) 是由 苏汉 岳炜 叶尔贵 于 2021-06-26 设计创作，主要内容包括：本申请涉及一种快速拆装基坑支撑结构,涉及基坑支护技术领域,其包括若干个支撑梁,所述支撑梁包括底梁柱、顶梁柱和一组侧梁柱,所述顶梁柱和底梁柱固定设置在两个侧梁柱之间,所述顶梁柱位于底梁柱的上方,所述侧梁柱朝向顶梁柱方向的一侧上安装有若干个加强筋,所述加强筋的长度方向沿支撑梁的宽度方向设置；所述侧梁柱的外侧壁上开设有供加强筋插设的安装槽,所述安装槽的内侧壁上设置有供加强筋插设并且相抵的限位槽；所述侧梁柱上设置有抵紧组件,所述抵紧组件用于将加强筋抵紧在限位槽内。本申请具有便于对基坑支撑结构进行快速拆装,减小工人的操作难度,加快施工进度的效果。(The utility model relates to a quick assembly disassembly foundation pit supporting structure, which relates to the technical field of foundation pit supporting and comprises a plurality of supporting beams, wherein each supporting beam comprises a bottom beam column, a top beam column and a group of side beam columns, the top beam column and the bottom beam column are fixedly arranged between the two side beam columns, the top beam column is positioned above the bottom beam column, one side of the side beam column facing to the top beam column direction is provided with a plurality of reinforcing ribs, and the length direction of the reinforcing ribs is arranged along the width direction of the supporting beam; the outer side wall of the side beam column is provided with an installation groove for inserting the reinforcing ribs, and the inner side wall of the installation groove is provided with a limiting groove for inserting and abutting the reinforcing ribs; and the side beam column is provided with a tight abutting assembly, and the tight abutting assembly is used for abutting the reinforcing rib in the limiting groove. This application has and is convenient for carry out quick assembly disassembly to foundation ditch bearing structure, reduces workman's the operation degree of difficulty for the effect of construction progress.)

1. The utility model provides a quick assembly disassembly foundation ditch bearing structure which characterized in that: the supporting beam comprises a plurality of supporting beams (1), wherein each supporting beam (1) comprises a bottom beam column (11), a top beam column (12) and a group of side beam columns (13), the top beam column (12) and the bottom beam column (11) are fixedly arranged between the two side beam columns (13), the top beam column (12) is positioned above the bottom beam column (11), one side, facing the top beam column (12), of each side beam column (13) is provided with a plurality of reinforcing ribs (2), and the length direction of each reinforcing rib (2) is arranged along the width direction of the supporting beam (1); the outer side wall of the side beam column (13) is provided with a mounting groove (3) for inserting the reinforcing ribs (2), and the inner side wall of the mounting groove (3) is provided with a limiting groove (31) for inserting and abutting the reinforcing ribs (2); the side beam column (13) is provided with a tightly-supporting component (4), and the tightly-supporting component (4) is used for tightly supporting the reinforcing rib (2) in the limiting groove (31).

2. The quick-assembly/disassembly foundation pit supporting structure of claim 1, wherein: the cross-section of the reinforcing rib (2) is rectangular, and the inner side wall of the limiting groove (31) and the outer side wall of the reinforcing rib (2) are mutually attached.

3. The quick-release foundation pit supporting structure according to claim 2, wherein: the abutting assembly (4) comprises an abutting spring (41) and an abutting rod (42), an abutting groove (32) is formed in one side, away from the direction of the limiting groove (31), of the inner side wall of the mounting groove (3), the abutting rod (42) is arranged in the abutting groove (32) in a sliding mode, the abutting spring (41) is arranged in the abutting groove (32), one end of the abutting spring (41) is fixed with the bottom wall of the abutting groove (32), the other end of the abutting spring (41) is fixed with one end of the abutting rod (42), and the other end of the abutting spring (41) abuts against the outer side wall of the reinforcing rib (2).

4. The quick-release foundation pit supporting structure according to claim 3, wherein: a driving groove (5) penetrates through the inner side wall of the abutting groove (32), the length direction of the driving groove (5) is arranged along the length direction of the abutting groove (32), a driving block (51) is arranged in the driving groove (5) in a sliding mode, and the driving block (51) is fixedly connected with the abutting rod (42); the driving block (51) penetrates through the driving groove (5) and is fixedly connected with a shifting block (52), the shifting block (52) is arranged along the length direction of the side beam column (13), a plurality of connecting rods (53) are fixedly arranged between the shifting blocks (52), and the length direction of the connecting rods (53) is arranged along the height direction of the side beam column (13).

5. The quick release foundation pit support structure of claim 4, wherein: the fixed connection rope (6) that is provided with on the lateral wall of connecting rod (53), the fixed couple (61) that is provided with of one end that connecting rod (53) direction was kept away from in connection rope (6), fixed go-between (63) that are provided with on the lateral wall of side beam column (13) and supply couple (61) to articulate.

6. The quick-assembly/disassembly foundation pit supporting structure of claim 1, wherein: the bottom beam column (11) comprises a driving bottom beam (111) and a sliding bottom beam (112), one end of the driving bottom beam (111) facing the sliding bottom beam (112) is fixedly provided with a guide rod (71) along the length direction, and the end wall of the sliding bottom beam (112) is provided with a guide groove (72) for the guide rod (71) to be inserted and slide; the top beam column (12) comprises a driving top beam (121) and a sliding top beam (122), a screw rod (73) is rotatably arranged at one end, facing the direction of the sliding top beam (122), of the driving top beam (121) along the length direction of the driving top beam, a threaded hole (74) for the screw rod (73) to insert is formed in the end wall of the sliding top beam (122), and the threaded hole (74) is in threaded connection with the screw rod (73); one side beam column (13) is arranged between the driving bottom beam (111) and the driving top beam (121), and the other side beam column (13) is arranged between the sliding bottom beam (112) and the sliding top beam (122); a driving assembly (8) is arranged between the driving bottom beam (111) and the driving top beam (121), and the driving assembly (8) is used for driving the screw rod (73) to rotate.

7. The quick release foundation pit support structure of claim 6, wherein: drive assembly (8) include worm wheel (81) and worm (82), worm wheel (81) fixed cover is established on the lateral wall of lead screw (73), worm (82) rotate to set up between drive floorbar (111) and drive back timber (121), intermeshing between worm (82) and worm wheel (81).

8. The quick release foundation pit support structure of claim 7, wherein: the driving assembly (8) further comprises a booster rod (83), and the booster rod (83) is rotatably arranged on the outer side wall of the worm (82); all seted up butt joint groove (9) on the diapire of drive floorbar (111) and bottom beam (112) that slides, butt joint groove (9) internal rotation is provided with gyro wheel (10), gyro wheel (10) length direction sets up along the width direction of a supporting beam (1).

9. The quick release foundation pit support structure of claim 8, wherein: connecting grooves (91) are symmetrically formed in the inner side wall of the butt joint groove (9) along the depth direction of the inner side wall, connecting blocks (92) are arranged in the connecting grooves (91) in a sliding mode, and the roller (10) is rotatably arranged between the two connecting blocks (92); and a buffer spring (93) which is propped against the top wall of the connecting block (92) is fixedly arranged in the connecting groove (91).

Technical Field

The application relates to the technical field of foundation pit support, in particular to a quick assembly disassembly foundation pit supporting structure.

Background

At present, the foundation pit support refers to a retaining, reinforcing and protecting measure adopted for the side wall of the foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground structure and the surrounding environment of the foundation pit.

The related art is designed with Chinese patent with an authorization notice number of CN203200765U, and provides a foundation pit supporting beam and a foundation pit inner supporting structure, which comprises a supporting beam connected between two upright posts of a foundation pit, wherein a hollow structure is arranged in the supporting beam, the side wall of the supporting beam is provided with a plurality of reinforcing steel bars, the reinforcing steel bars are arranged in an extending way along the length direction of the supporting beam, and the side wall of the supporting beam is also provided with stirrups; a plurality of reinforcing bars are connected and fixed through the stirrups, and the bending resistance and the strength of the supporting beam are improved.

To the above-mentioned related art, the inventor thinks that this kind of foundation ditch inner supporting structure needs the workman to bend steel through the mode that adopts artifical stirrup when installing between reinforcing bar and the supporting beam, and the dismouting is very inconvenient, needs to consume great labour and time, has influenced the construction progress, therefore awaits improving.

Disclosure of Invention

In order to facilitate carrying out quick assembly disassembly to foundation ditch bearing structure, reduce workman's the operation degree of difficulty for the construction progress, this application provides a quick assembly disassembly foundation ditch bearing structure.

The application provides a pair of quick assembly disassembly foundation ditch bearing structure adopts following technical scheme:

a foundation pit supporting structure capable of being rapidly disassembled and assembled comprises a plurality of supporting beams, wherein each supporting beam comprises a bottom beam column, a top beam column and a group of side beam columns, the top beam column and the bottom beam column are fixedly arranged between the two side beam columns, the top beam column is positioned above the bottom beam column, a plurality of reinforcing ribs are arranged on one side, facing the top beam column direction, of the side beam columns, and the length direction of each reinforcing rib is arranged along the width direction of the supporting beam; the outer side wall of the side beam column is provided with an installation groove for inserting the reinforcing ribs, and the inner side wall of the installation groove is provided with a limiting groove for inserting and abutting the reinforcing ribs; and the side beam column is provided with a tight abutting assembly, and the tight abutting assembly is used for abutting the reinforcing rib in the limiting groove.

By adopting the technical scheme, when the foundation pit is supported, the supporting beams are placed in the foundation pit, so that the outer side walls of the supporting beams are abutted against the inner side walls of the foundation pit, and at the moment, the supporting beams can support the inner side walls of the foundation pit so as to consolidate the foundation pit; then inserting the reinforcing ribs into the mounting grooves on the plurality of side beam columns, then inserting the reinforcing ribs into the limiting grooves, wherein the reinforcing ribs are abutted against the inner side walls of the limiting grooves, and abutting the reinforcing ribs by using abutting components, so that the reinforcing ribs are quickly mounted on the outer side walls of the plurality of side beam columns, the supporting strength of the supporting structure is improved by the reinforcing ribs, and the supporting effect on the foundation pit is improved; when demolising bearing structure, will support tight subassembly and strengthening rib and break away from each other, then with the strengthening rib from spacing groove and mounting groove in take out can, convenient operation is swift, realizes carrying out the dismouting to the strengthening rib fast, workman's intensity of labour is little to construction progress has been accelerated.

Optionally, the cross section of the reinforcing rib is rectangular, and the inner side wall of the limiting groove and the outer side wall of the reinforcing rib are mutually attached.

Through adopting above-mentioned technical scheme, rectangular cross section's strengthening rib is when offsetting with the inside wall of spacing groove, and the strengthening rib is connected better stably at the spacing inslot, and the strengthening rib is difficult when receiving the effort to break away from each other with the spacing groove, has improved the stability of strengthening rib at the spacing inslot.

Optionally, the abutting assembly comprises an abutting spring and an abutting rod, an abutting groove is formed in the inner side wall of the mounting groove and located on one side away from the direction of the limiting groove, the abutting rod is arranged in the abutting groove in a sliding mode, the abutting spring is arranged in the abutting groove, one end of the abutting spring is fixed to the bottom wall of the abutting groove, the other end of the abutting spring is fixed to one end of the abutting rod, and the other end of the abutting spring drives the other end of the abutting rod to abut against the outer side wall of the reinforcing rib.

Through adopting above-mentioned technical scheme, inserting the strengthening rib and establishing to the spacing inslot back, support tight spring and the end wall that supports tight pole and offset, support tight spring and order about to support tight pole and slide to the spacing groove direction, support tight spring and will support the lateral wall of tight pole and strengthening rib and offset, further improved the stability of strengthening rib at the spacing inslot to make the foundation ditch support can satisfy different construction environment.

Optionally, a driving groove penetrates through the inner side wall of the abutting groove, the length direction of the driving groove is arranged along the length direction of the abutting groove, a driving block is slidably arranged in the driving groove, and the driving block is fixedly connected with the abutting rod; the driving block penetrates through the driving groove and is fixedly connected with a transposition block, the transposition block is arranged along the length direction of the side beam column, a plurality of connecting rods are fixedly arranged between the transposition blocks, and the length direction of the connecting rods is arranged along the height direction of the side beam column.

Through adopting above-mentioned technical scheme, when needs dismouting strengthening rib, the workman is through the pulling connecting rod, and the connecting rod drives a plurality of transposition piece and goes up and down simultaneously, and then drives a plurality of drive block on the side beam column and slide at the drive inslot, and then drives a plurality of and support tight pole and slide at supporting tight inslot simultaneously, will support tight pole shrink to supporting tight inslot to insert the strengthening rib and establish to spacing inslot, so that a plurality of support tight poles slide on the workman's drive side beam column.

Optionally, a connecting rope is fixedly arranged on the outer side wall of the connecting rod, a hook is fixedly arranged at one end, far away from the connecting rod direction, of the connecting rope, and a connecting ring for hooking the hook is fixedly arranged on the outer side wall of the side beam column.

Through adopting above-mentioned technical scheme, when installing the strengthening rib, the pulling connecting rod will support tight pole shrink to supporting tight inslot back, then will get in touch and go-between and articulate each other, connect rope pulling connecting rod to will support tight pole to fix and support tight inslot, a workman just can install or dismantle between strengthening rib and a plurality of supporting beam this moment, has improved the convenience of operation greatly.

Optionally, the bottom beam column includes a driving bottom beam and a sliding bottom beam, a guide rod is fixedly arranged at one end of the driving bottom beam facing the sliding bottom beam along the length direction of the driving bottom beam, and a guide groove for the guide rod to be inserted and slide is formed in an end wall of the sliding bottom beam; the top beam column comprises a driving top beam and a sliding top beam, a screw rod is rotatably arranged at one end of the driving top beam facing to the direction of the sliding top beam along the length direction of the driving top beam, a threaded hole for the screw rod to insert is formed in the end wall of the sliding top beam, and the threaded hole is in threaded connection with the screw rod; one side beam column is arranged between the driving bottom beam and the driving top beam, and the other side beam column is arranged between the sliding bottom beam and the sliding top beam; and a driving assembly is arranged between the driving bottom beam and the driving top beam and is used for driving the screw rod to rotate.

Through adopting above-mentioned technical scheme, when supporting different foundation ditches, slide through drive assembly drive lead screw, the lead screw offsets with the screw hole, the guide bar slides in the guide way simultaneously, the guide bar leads bottom beam column and roof beam column, thereby drive the bottom beam and slide the bottom beam and drive back timber and slide and can slide each other between the back timber, adjust the drive bottom beam and slide the bottom beam and drive back timber and the distance between the back timber that slides, and then changed a supporting beam's length, so that a supporting beam supports the foundation ditch of not width size, a supporting beam's suitability has been strengthened, supporting beam's reuse has been realized, construction cost has been practiced thrift, reach energy-concerving and environment-protective effect.

Optionally, the driving assembly comprises a worm wheel and a worm, the worm wheel is fixedly sleeved on the outer side wall of the screw rod, the worm is rotatably arranged between the driving bottom beam and the driving top beam, and the worm wheel are meshed with each other.

Through adopting above-mentioned technical scheme, the workman rotates the worm subaerial, and then drives the worm wheel and rotate, and then drives the lead screw and rotate, but quick locking, convenient operation is swift between worm and the worm wheel.

Optionally, the driving assembly further comprises a power assisting rod, and the power assisting rod is rotatably arranged on the outer side wall of the worm; all seted up the butt joint groove on the diapire of drive floorbar and the floorbar that slides, the butt joint inslot rotation is provided with the gyro wheel, gyro wheel length direction sets up along a supporting beam's width direction.

By adopting the technical scheme, a worker holds the power-assisted rod so as to drive the worm to rotate, and rotates the power-assisted rod to enable the power-assisted rod and the worm to be parallel to each other, so that the worker can walk around the supporting beam, and the collision between the worker and the power-assisted rod is relieved; meanwhile, when the length of the supporting beam is adjusted, the roller is abutted to the ground, the roller rolls on the ground, and friction between the bottom beam column and the ground is reduced, so that the labor force of workers is reduced when the length of the supporting beam is adjusted.

Optionally, connecting grooves are symmetrically formed in the inner side wall of the butt joint groove along the depth direction of the butt joint groove, connecting blocks are slidably arranged in the connecting grooves, and the roller is rotatably arranged between the two connecting blocks; and a buffer spring which is propped against the top wall of the connecting block is fixedly arranged in the connecting groove.

Through adopting above-mentioned technical scheme, drive the floorbar and when the mutual removal between the floorbar slides, buffer spring offsets with the connecting block, when through unevenness's ground, buffer spring can take place deformation, and the connecting block slides in the spread groove this moment to the gyro wheel can carry out a certain amount of displacements in vertical direction in the butt joint inslot, so that drive the floorbar and keep the state that flushes between the floorbar that slides, and then be convenient for adjust the length of supporting beam under different foundation ditch ground environment.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the mounting groove, the limiting groove, the abutting spring, the abutting groove and the abutting rod, when the reinforcing ribs and the supporting beams are mutually mounted, the reinforcing ribs are inserted into the mounting groove firstly, then the reinforcing ribs are inserted into the limiting groove, the reinforcing ribs abut against the inner side wall of the limiting groove, and meanwhile the abutting spring drives the abutting rod to abut against the outer side wall of the reinforcing ribs, so that the reinforcing ribs can be mounted quickly, the operation is convenient and quick, the labor intensity of workers is low, and the construction progress is accelerated;

2. by arranging the driving groove, the driving block, the transposition block, the connecting rod, the connecting rope and the hook, a worker can control a plurality of abutting rods to slide in the abutting groove, so that the convenience in assembling and disassembling the reinforcing ribs is improved;

3. through setting up the drive floorbar, the floorbar slides, guide bar, guide way, drive back timber, the back timber that slides, lead screw, screw hole, worm wheel, worm, helping hand pole, butt joint groove and gyro wheel, adjusted a supporting beam's length to a supporting beam supports the foundation ditch of not equidimension, has strengthened a supporting beam's suitability, has realized the reuse to a supporting beam, has practiced thrift construction cost, reachs energy-concerving and environment-protective effect.

Drawings

Fig. 1 is a schematic structural diagram of a rapid dismounting foundation pit supporting structure in the embodiment.

FIG. 2 is a sectional view of a support beam for embodying the embodiment.

Fig. 3 is a sectional view for embodying the connection relationship between the reinforcing bars and the side sill pillar in the embodiment.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Description of reference numerals: 1. a support beam; 11. a bottom beam column; 111. a drive bottom beam; 112. sliding the bottom beam; 12. a roof beam column; 121. driving the top beam; 122. sliding the top beam; 13. a side beam column; 2. reinforcing ribs; 3. mounting grooves; 31. a limiting groove; 32. abutting against the groove; 4. a propping component; 41. the spring is tightly propped; 42. a tightening rod; 5. a drive slot; 51. a drive block; 52. a bit-shifting block; 53. a connecting rod; 6. connecting ropes; 61. hooking; 63. a connecting ring; 71. a guide bar; 72. a guide groove; 73. a screw rod; 74. a threaded hole; 8. a drive assembly; 81. a worm gear; 82. a worm; 83. a booster lever; 9. a butt joint groove; 91. connecting grooves; 92. connecting blocks; 93. a buffer spring; 10. and a roller.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses quick assembly disassembly foundation ditch bearing structure. Referring to fig. 1 and 2, it includes a plurality of supporting beam 1, a supporting beam 1 is installed in the foundation ditch, a supporting beam 1 includes bottom beam column 11, top beam column 12 and a set of side beam column 13, top beam column 12 and bottom beam column 11 set up between two side beam columns 13 through welded fastening, top beam column 12 is located bottom beam column 11's top, top beam column 12 and bottom beam column 11 support the lateral wall of side beam column 13, make side beam column 13 support the inside wall of foundation ditch and maintain. A plurality of reinforcing ribs 2 are installed on one side of the side beam column 13 facing the top beam column 12, the length direction of the reinforcing ribs 2 is arranged along the width direction of the side beam column 13, and the cross section of each reinforcing rib 2 is rectangular. When the side beam column 13 is pressed by the foundation pit, the reinforcing ribs 2 support the side beam column 13, and the strength of the support beam 1 is improved.

Referring to fig. 1 and 2, the outer side wall of the side sill pillar 13 is provided with a mounting groove 3 for the reinforcing rib 2 to be inserted, the inner side wall of the mounting groove 3 is provided with a limiting groove 31 for the reinforcing rib 2 to be inserted, and the limiting groove 31 is located below the mounting groove 3. When installing strengthening rib 2, insert earlier with strengthening rib 2 and establish to mounting groove 3 in, then insert strengthening rib 2 and establish to spacing inslot 31, the inside wall of spacing groove 31 and the lateral wall of strengthening rib 2 laminate each other this moment to install strengthening rib 2 fast on the lateral wall of side beam column 13, when side beam column 13 received foundation ditch pressure, strengthening rib 2 offsets with the inside wall of spacing groove 31, strengthening rib 2 has improved bearing structure's intensity, easy dismounting is swift simultaneously.

Referring to fig. 2 and 3, the side beam column 13 is provided with a tightening assembly 4, the tightening assembly 4 includes a tightening spring 41 and a tightening rod 42, a tightening groove 32 is formed in the inner side wall of the mounting groove 3, the tightening groove 32 is located above the limiting groove 31, and the tightening groove 32 is arranged in the length direction along the height direction of the side beam column 13. The abutting rod 42 is slidably arranged in the abutting groove 32, the abutting spring 41 is arranged in the abutting groove 32, one end of the abutting spring 41 is fixedly bonded with the bottom wall of the abutting groove 32, and the other end of the abutting spring 41 is mutually fixed and abutted with one end of the abutting rod 42. After the reinforcing rib 2 is inserted into the limiting groove 31, the abutting spring 41 urges the other end of the abutting rod 42 to abut against the outer side wall of the reinforcing rib 2.

Referring to fig. 2 and 3, the driving groove 5 is disposed on the inner sidewall of the abutting groove 32, and the length direction of the driving groove 5 is disposed along the length direction of the abutting groove 32. A driving block 51 is slidably arranged in the driving groove 5, and the driving block 51 is fixedly connected with the outer side wall of the abutting rod 42. The driving block 51 penetrates through the driving groove 5 and is fixedly connected with transposition blocks 52, the transposition blocks 52 are arranged along the length direction of the side beam column 13, connecting rods 53 are fixedly arranged between the transposition blocks 52, and the length direction of the connecting rods 53 is arranged along the height direction of the side beam column 13. The outer side wall of the connecting rod 53 is fixedly provided with a connecting rope 6, the connecting rope 6 is far away from one end of the connecting rod 53, the hook 61 is fixedly connected with the connecting rope 6, and the outer side wall of the side beam column 13 is fixedly welded with a connecting ring 63. At 2 installation money to strengthening rib, the workman stimulates connecting rod 53, articulates couple 61 and go-between 63 each other, and this moment with a plurality of support tight pole 42 shrink simultaneously to support in the tight groove 32, treat to insert strengthening rib 2 and establish to spacing inslot 31 after, the workman breaks away from couple 61 and go-between 63 each other, and this moment is supporting under the tight spring 41 effort, supports tight pole 42 and offsets with strengthening rib 2 fast, has improved the convenience of operation.

Referring to fig. 1 and 2, the sill pillar 11 includes a driving sill 111 and a sliding sill 112, and the roof pillar 12 includes a driving roof rail 121 and a sliding roof rail 122, wherein one side pillar 13 is connected between end walls of the driving sill 111 and the driving roof rail 121, and the other side pillar 13 is connected between the sliding sill 112 and the sliding roof rail 122. The drive floorbar 111 is provided with the guide rod 71 towards the one end of the floorbar 112 direction of sliding fixedly, the length direction of the guide rod 71 is arranged along the length direction of the support beam 1, the end wall of the floorbar 112 of sliding is provided with the guide groove 72 along the length direction for the guide rod 71 to be inserted and slide, and the outer side wall of the guide rod 71 is attached to the inner side wall of the guide groove 72. One end of the driving top beam 121 facing the direction of the sliding top beam 122 is rotatably provided with a screw rod 73, the screw rod 73 is parallel to the guide rod 71, a threaded hole 74 for the screw rod 73 to be inserted is formed in the end wall of the sliding top beam 122, and the threaded hole 74 is in threaded connection with the screw rod 73.

Referring to fig. 1 and 2, a driving assembly 8 is arranged between the driving bottom beam 111 and the driving top beam 121, the driving assembly 8 comprises a worm wheel 81, a worm 82 and a power-assisted rod 83, the worm wheel 81 is fixedly sleeved on the outer side wall of the screw rod 73, the worm wheel 81 and the screw rod 73 are coaxially arranged, the worm 82 is rotatably arranged between the driving bottom beam 111 and the driving top beam 121 through a rotating shaft, the worm 82 and the worm wheel 81 are mutually meshed, and the power-assisted rod 83 is rotatably arranged on the outer side wall of the worm 82. Rotate helping hand pole 83, workman's drive helping hand pole 83 drives worm 82 and rotates, and then drive worm wheel 81 and lead screw 73 and rotate, lead screw 73 offsets with the inside wall of screw hole 74, guide bar 71 leads, drive floorbar 111 and slide floorbar 112 and drive back timber 121 and slide between the back timber 122 can slide each other, the realization is to the regulation of a supporting beam 1 length, so that a supporting beam 1 supports the pile foundation of different width, realize supporting beam 1's reuse, improve the device suitability, construction cost has been reduced.

Referring to fig. 3 and 4, the butt joint groove 9 has been all seted up on the diapire of drive floorbar 111 and the floorbar 112 that slides, has seted up a set of spread groove 91 along its degree of depth direction symmetry on the inside wall of butt joint groove 9, and the internal slipping of spread groove 91 is provided with connecting block 92, and the fixed buffer spring 93 that offsets with the connecting block 92 roof that is provided with in spread groove 91. The rollers 10 are rotatably disposed between the two connecting blocks 92, and the length direction of the rollers 10 is arranged along the width direction of the support beam 1. When a worker moves between the driving bottom beam 111 and the sliding bottom beam 112 through the driving assembly 8, the roller 10 is abutted against the ground, and the friction force between the bottom beam column 11 and the ground is reduced. Buffer spring 93 receives pressure to take place deformation simultaneously, and connecting block 92 can slide in spread groove 91, and gyro wheel 10 can carry out certain displacement in vertical direction to be convenient for the workman adjust a supporting beam 1's length in unevenness's foundation ditch, improve the convenience of operation.

The implementation principle of the quick assembly disassembly foundation ditch bearing structure of the embodiment of the application is as follows: when the supporting structure is assembled, a plurality of supporting beams 1 are placed in the foundation pit, and the side beam columns 13 are abutted against the inner side wall of the foundation pit; then pulling connecting rod 53, articulate couple 61 and go-between 63 each other, make to support tight pole 42 and contract completely to supporting in the tight groove 32, then insert earlier with strengthening rib 2 and establish to mounting groove 3 in, insert again and establish to spacing inslot 31, break away from couple 61 and go-between 63 each other at last, at this moment under the effort of supporting tight spring 41, support tight pole 42 and the lateral wall of strengthening rib 2 and offset, strengthening rib 2 is fixed in spacing inslot 31, thereby assemble strengthening rib 2 on a plurality of supporting beam 1's lateral wall fast, strengthening rib 2 has strengthened bearing structure's intensity, high convenience and fastness in operation, workman's intensity of labour has been reduced, construction progress has been accelerated.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.