CN214005689U

CN214005689U - Pile structure for foundation pit construction

Info

Publication number: CN214005689U
Application number: CN202022635654.5U
Authority: CN
Inventors: 王飞; 陈谷; 陈奇略; 朱建祥; 李康梅
Original assignee: Shenzhen Luohu Construction And Installation Engineering Co Ltd
Current assignee: Shenzhen Luohu Construction And Installation Engineering Co Ltd
Priority date: 2020-11-14
Filing date: 2020-11-14
Publication date: 2021-08-20
Anticipated expiration: 2030-11-14

Abstract

The application relates to a stake structure for foundation ditch construction, it includes: the bottom of the supporting seat is vertically provided with a pin; the connecting arm is obliquely arranged on the supporting seat; the pile column is arranged on the side wall of the connecting arm and is far away from one end of the supporting seat; the retaining plate is connected to one side of the pile column, which is far away from the supporting seat in a sliding manner; the lifting component is arranged at the top of the supporting seat and used for adjusting the mounting height of the connecting arm; and the rotating assembly is arranged on the connecting arm and used for adjusting the using angle of the pile, wherein the side wall of the retaining plate is provided with a connecting groove with the extending direction consistent with the length direction of the retaining plate, and one side of the pile, which is far away from the supporting seat, is provided with a connecting strip matched with the connecting groove. This application has the convenient use angle who adjusts the pile structure, prolongs the life of pile structure and reaches the effect that the building is energy-conserving.

Description

Pile structure for foundation pit construction

Technical Field

The application relates to the technical field of foundation pit support, especially, relate to a stake structure for foundation pit construction.

Background

In the construction industry, a foundation pit refers to a soil pit excavated at a designed position of a foundation according to the elevation of the foundation and the plane size of the foundation. When meetting rainy weather during foundation ditch construction, in order to prevent that the rainwater from flowing into the foundation ditch and influencing the construction, need set up excavation supporting to foundation ditch lateral wall and all ring edge borders.

When the slope width of partial section of the foundation pit excavated by slope excavation is insufficient, foundation construction can be carried out by adopting simple supporting methods such as temporary retaining wall supporting and the like, the temporary retaining wall needs to be firstly driven along the edge of the foundation pit during construction, retaining plates are arranged on the column piles, and side supporting is carried out by using inclined struts.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the pile is inserted and established underground, the angle of pile can't be adjusted, leads to retaining plate can't be laminated with the pile, has certain space between retaining plate and the pile, and retaining plate is not hard up easily in the use, to this to remain further to improve.

SUMMERY OF THE UTILITY MODEL

In order to conveniently adjust the angle of pile structure, this application provides a pile structure for foundation ditch construction.

The application provides a pair of stake structure for foundation ditch construction adopts following technical scheme:

a pile structure for foundation pit construction, comprising: the bottom of the supporting seat is vertically provided with a pin; the connecting arm is obliquely arranged on the supporting seat; the pile column is arranged on the side wall of the connecting arm and is far away from one end of the supporting seat; the retaining plate is connected to one side, away from the supporting seat, of the pile column in a sliding mode; the lifting component is arranged at the top of the supporting seat and used for adjusting the mounting height of the connecting arm; and the rotating assembly is arranged on the connecting arm and used for adjusting the using angle of the pile, wherein one side of the pile, which is far away from the supporting seat, is provided with a connecting groove, and the side wall of the retaining plate is provided with a connecting strip matched with the connecting groove.

Adopt above-mentioned technical scheme, under mutually supporting of connecting strip and spread groove, it can slide with the stake and be connected to keep off the native board, supporting seat and linking arm can be firm support stake and keep off the native board, guarantee to keep off the good effect of native board, through opening lifting unit, can adjust the height of linking arm, thereby can adjust the mounting height of stake and fender native board, make keep off the native board and put the slope adaptation, through opening rotating unit, can adjust the use angle of stake, make keep off native board and put the domatic laminating more of slope. Through this scheme, can conveniently adjust the use angle of stake and retaining plate.

This application further sets up, lifting unit includes: the supporting column is vertically arranged at the top of the supporting seat; the adjusting groove is formed in the side wall of the supporting column, and the extending direction of the adjusting groove is consistent with the extending direction of the supporting column; the adjusting block is connected in the adjusting groove in a sliding manner; the adjusting strip is arranged on one side of the adjusting block, which is far away from the supporting column, and is fixed with the connecting arm; and the first locking part is arranged on the supporting column and used for locking the adjusting strip, wherein the extending direction of the adjusting strip is vertical to the extending direction of the supporting column.

Adopt above-mentioned technical scheme, through setting up the support column, the adjustment tank, the regulating block, regulation strip and first locking piece, keep off the native in-process at earth plate, first locking piece can lock the regulating block, make the linking arm, the rigidity of stake, thereby make the rigidity of keeping off earth plate, guarantee the stability of keeping off earth plate, when the height of stake and fender earth plate is adjusted to needs, through unblock first locking piece, can stir the regulation strip, it carries out the displacement to drive the extending direction of regulating block along the adjustment tank, thereby make stake and fender earth plate along the extending direction displacement of support column, when stake and fender earth plate reach preset position, reuse first locking piece locking regulation strip, can fix the mounting height of fender earth plate.

The present application further provides that the first locking member comprises: a plurality of first locking holes formed in the side wall of the support column; the first locking groove is horizontally arranged on the side wall of the adjusting strip in a penetrating manner; and the first locking rod is connected in the first locking groove in a sliding manner and is matched with the first locking hole, wherein the extending direction of the first locking groove is vertical to the extending direction of the supporting column.

Adopt above-mentioned technical scheme, through setting up first locking hole, first locking groove and first locking lever, at the fender soil in-process of board that keeps off soil, first locking lever is located the first locking hole on the support column, locks vertical gliding regulation strip from the horizontal direction, when the height of stake is adjusted to needs, through first locking lever that slides in first locking groove, makes first locking lever and first locking hole separation, the slip regulation strip that can be convenient.

This application further sets up, first locking lever is kept away from one side of regulation strip is provided with first stopper, the first mouth that holds has been seted up to the support column lateral wall, first hold the mouth with first locking groove is linked together just first hold the mouth with first stopper looks adaptation.

Adopt above-mentioned technical scheme, through setting up first stopper and the first mouth that holds, when the mounting height of stake is adjusted to needs, first locking lever and the separation of first locking hole, through rotating first stopper to the first mouth that holds, can reduce rocking of first locking lever, reduce the influence of first locking lever to the slip regulation strip.

The present application further provides that the rotating assembly comprises: the rotating rod horizontally penetrates through the connecting arm and is fixed with the pile; and the second locking piece is arranged on the connecting arm and used for limiting the rotation of the rotating rod.

Adopt above-mentioned technical scheme, through setting up dwang and second locking piece, through rotating the dwang, can drive the stake rotation to can adjust the angle of stake and fender native board, through opening second locking subassembly, can lock the stake and keep off native board at predetermined angle, guarantee to keep off the better soil retaining ability of native board.

The present application further provides that the second locking element comprises: a plurality of second locking holes arranged on the side wall of the rotating rod; the connecting block is arranged at one end of the connecting arm, which is far away from the supporting seat; the second locking groove penetrates through the side wall of the connecting block; and the second locking rod is connected in the second locking groove in a sliding manner, wherein the extending direction of the second locking groove is perpendicular to the extending direction of the rotating rod, and the size of the second locking rod is matched with that of the second locking hole.

Adopt above-mentioned technical scheme, through setting up second locking hole, connecting block, second locking groove and second locking lever, at the fender native in-process of board that keeps off soil, the second locking lever is located the second locking hole of bull stick lateral wall, can lock the pivoted bull stick, when the angle of use of stake is adjusted to needs, through the second locking lever that slides in the second locking groove, makes second locking lever and second locking hole separation, rotation bull stick that can be convenient.

This application further sets up, the support column is a plurality of, the extending direction has been seted up at the supporting seat top with supporting seat extending direction unanimous mounting groove, the support column slide connect in the mounting groove, be provided with the restriction on the supporting seat the third locking piece that the support column removed.

Adopt above-mentioned technical scheme, through unblock third locking piece, can slide the support column in the mounting groove to adjust the interval of adjacent support column, guarantee to keep off the good supporting role of soil board with the stake, through opening the third locking piece, can be with the fixed position of support column.

The present application further provides that the third locking element comprises: a plurality of third locking holes arranged at the top of the supporting seat; the sliding groove is formed in the side wall of the supporting column, and the extending direction of the sliding groove is consistent with the extending direction of the supporting column; the sliding block is connected with the sliding groove in a sliding manner; and the third locking rod is arranged on one side of the sliding block, which is far away from the supporting column, and is matched with the third locking hole.

Adopt above-mentioned technical scheme, through setting up third locking hole, spout, slider and third locking lever, at the fender soil of board in-process that keeps off soil, the third locking lever is located the third locking hole on the supporting seat, when the distance between the stake is adjusted to needs, through promoting the third locking lever, makes the slider carry out the displacement along the extending direction of spout, can make third locking lever and supporting seat separation to removal support column that can be convenient.

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

1. by arranging the supporting columns, the adjusting grooves, the adjusting blocks, the adjusting strips, the first locking holes and the first locking rods, the first locking rods are inserted into the first locking holes, so that the position of the soil retaining plate can be fixed, and the stability of the soil retaining plate is ensured; by separating the first locking rod from the supporting column, the pile column and the retaining plate can be displaced along the extending direction of the supporting column, so that the height of the retaining plate is matched with the height of the slope;

2. through setting up dwang, second locking hole, connecting block, second locking groove and second locking lever, through rotating the bull stick, can drive the stake rotation to can adjust the angle of stake and fender native board, through sliding the second locking lever to the second locking hole of bull stick, can lock the stake and keep off native board at predetermined angle, guarantee to keep off the better ability of keeping off native of native board.

3. Through setting up mounting groove, third locking hole and third locking lever, through alternate the third locking lever in the third locking hole, can lock the support column, through the slider that slides in the spout, with third locking lever and mount pad separation, can adjust the interval of two support columns to adjust the distance of two stakes.

Drawings

FIG. 1 is a schematic view of the overall structure of the present application;

FIG. 2 is a schematic view of the present application showing the structure of the pile and the retaining plate in a disassembled state;

FIG. 3 is a schematic view of the construction of the lift assembly of the present application;

FIG. 4 is an enlarged view at A in FIG. 3;

fig. 5 is an enlarged view at B in fig. 1.

Description of reference numerals: 1. a supporting seat; 10. a pin; 11. a connecting arm; 12. pile columns; 120. inserting a column; 13. a soil guard plate; 131. a connecting strip; 132. connecting grooves; 2. a support pillar; 20. mounting grooves; 21. a third locking hole; 22. a chute; 23. a slider; 24. a third locking lever; 3. an adjustment groove; 31. an adjusting block; 32. an adjustment bar; 33. a first locking hole; 34. a first locking groove; 35. a first locking lever; 351. a first clamping block; 352. a first stopper; 353. a first receiving port; 354. a first spring; 4. a rotating rod; 41. a second locking hole; 42. connecting blocks; 43. a second locking slot; 44. a second locking lever; 441. a second fixture block; 442. a second limiting block; 443. a second receiving port; 444. a second spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses stake structure for foundation ditch construction. Referring to fig. 1 and 2, the pile 12 structure for foundation pit construction includes a support base 1, a connecting arm 11, a pile 12, and a retaining plate 13. Supporting seat 1 in this embodiment is the bar platform, is fixed with a plurality of participate in 10 in supporting seat 1 bottom is vertical, conveniently with the firm ground that inserts of supporting seat 1. Connecting arm 11 passes through lifting unit slope and installs on supporting seat 1, and stake 12 installs the lateral wall of keeping away from supporting seat 1 one end at connecting arm 11 through rotating assembly, is fixed with the post of inserting 120 in stake 12 bottom, and the post of inserting 120 in this embodiment is the toper post, makes things convenient for stake 12 to insert ground fixed.

A plurality of connecting strips 131 are fixed on the side wall of the retaining plate 13, the extending direction of the connecting strips 131 is consistent with the width direction of the retaining plate 13, a connecting groove 132 is formed in one side of the pile 12 far away from the mounting column, the size of the connecting groove 132 is matched with that of the connecting strips 131, and the retaining plate 13 can be connected with the pile 12 in a sliding manner by sliding the connecting strips 131 in the connecting groove 132.

The supporting base 1 and the connecting arm 11 can support the pile 12, so that the retaining plate 13 on the pile 12 can block the earth wall on the slope. The mounting height of the connecting arm 11 and the pile 12 can be adjusted by opening the lifting assembly, and the use angle of the pile 12 can be adjusted by opening the rotating assembly.

The mounting groove 20 has been seted up at supporting seat 1 top, and the extending direction of mounting groove 20 is unanimous with the extending direction of supporting seat 1, and the sliding is connected with support column 2 in mounting groove 20, and in this embodiment, support column 2 is two, and wherein, the size looks adaptation of the size mounting groove 20 of support column 2, the extending direction of support column 2 is mutually perpendicular with the extending direction of mounting groove 20, and support column 2 extends to outside the mounting groove 20. By sliding the support posts 2 in the mounting slots 20, the spacing between the two support posts 2 can be adjusted.

In addition, a plurality of third locking holes 21 are formed in the top of the supporting seat 1, and the plurality of third locking holes 21 are uniformly arranged at intervals along the extending direction of the supporting seat 1. The side wall of the support column 2 is provided with a sliding groove 22, wherein the extending direction of the sliding groove 22 is consistent with the extending direction of the support column 2. A sliding block 23 is slidably connected in the sliding groove 22, in this embodiment, the size of the sliding block 23 is adapted to the size of the sliding groove 22, the sliding block 23 can slide in the sliding groove 22 without departing from the supporting column 2, a third locking rod 24 is fixed on a side of the sliding block 23 away from the supporting column 2, in this embodiment, the third locking rod 24 is an L-shaped rod, and one end of the third locking rod 24 away from the sliding block 23 is adapted to the third locking hole 21.

The position of the support column 2 can be fixed by inserting the third locking lever 24 into the third locking hole 21. When the position of the supporting column 2 needs to be adjusted, the third locking rod 24 can enter the third locking hole 21 on the supporting seat 1 under the action of gravity by pushing the third locking rod 24 to leave the third locking hole 21 on the supporting seat 1, pushing the supporting column 2 to a preset position and then releasing the third locking rod 24.

Referring to fig. 1 and 3, the lifting assembly in the present embodiment includes: adjustment groove 3, adjustment block 31, adjustment strip 32 and first locking member.

Wherein, the adjusting groove 3 is opened at one side of the supporting column 2 far away from the sliding groove 22, in this embodiment, the extending direction of the adjusting groove 3 is consistent with the extending direction of the supporting column 2, and the cross section of the adjusting groove 3 is T-shaped. The adjusting block 31 is connected in the adjusting groove 3 in a sliding manner, wherein the adjusting block 31 is a T-shaped block matched with the adjusting groove 3. The adjusting strip 32 is fixed on one side of the adjusting block 31 far away from the supporting column 2, wherein the adjusting strip 32 is located outside the adjusting groove 3, and the extending direction of the adjusting strip 32 is perpendicular to the extending direction of the supporting column 2. In addition, a first locking member is provided on the support column 2, and can lock the adjustment bar 32. In the present embodiment, the connecting arm 11 is fixed obliquely to the side of the adjusting bar 32 remote from the supporting column 2.

Through stirring adjusting strip 32, can drive linking arm 11, rotating assembly and pile 12 along the extending direction round trip movement of support column 2, can be according to the use height of retaining plate 13 to the mounting height of adjusting pile 12.

Referring to fig. 3 and 4, the first locking member in the present embodiment includes: a first locking hole 33, a first locking groove 34, and a first locking lever 35. The number of the first locking holes 33 is multiple, the first locking holes 33 are formed in one side, away from the sliding groove 22, of the supporting column 2, and the multiple first locking holes 33 are uniformly distributed at intervals; the first locking groove 34 is horizontally opened through the side wall of the adjusting bar 32, and in the embodiment, the extending direction of the first locking groove 34 is perpendicular to the extending direction of the supporting column 2.

The first locking rod 35 slides in the first locking groove 34, the first locking rod 35 in this embodiment is a round rod, the size of the first locking rod 35 is matched with the size of the first locking groove 34, and the size of one end, close to the supporting column 2, of the first locking rod 35 is matched with the first locking hole 33.

One end of the first locking rod 35 far away from the supporting column 2 is fixed with a first clamping block 351, wherein the size of the first clamping block 351 is larger than the size of the first locking groove 34 far away from one end of the supporting column 2, so that the first clamping block 351 can be always positioned outside the adjusting strip 32, and the position of the first locking rod 35 can be adjusted by a worker through rotating the first clamping block 351.

In addition, a first stop block 352 is fixed on the side wall of the first locking rod 35 far away from the adjusting bar 32, a first accommodating opening 353 is formed in the side wall of the adjusting bar 32, the first accommodating opening 353 is communicated with the first locking groove 34, and the size of the first accommodating opening 353 is matched with that of the first stop block 352. In addition, a first spring 354 is sleeved on the first locking rod 35, wherein one end of the first spring 354 is fixed on the side of the first locking groove 34 far away from the supporting column 2, and the other end is fixed on the end of the first locking rod 35 far away from the supporting column 2.

In the process that the pile 12 supports the soil blocking plate 13, the first locking lever 35 is positioned in the first locking hole 33 of the supporting column 2, the first stopper 352 is separated from the first receiving opening 353, and the first spring 354 is in a natural extension state. When the height of connecting arm 11 needs to be adjusted, make first locking lever 35 and support column 2 separate through pulling first fixture block 351, first spring 354 compresses, it makes first stopper 352 be located first holding hole 353 to rotate first fixture block 351, move connecting arm 11 to predetermined position again, rotate first fixture block 351, make first stopper 352 leave first holding hole 353, under the elastic force effect that first spring 354 resumes deformation, drive in the locking lever gets into the first locking hole 33 on the support column 2, can fix the position of adjusting strip 32, thereby fix the position of connecting arm 11.

Referring to fig. 1 and 5, the rotating assembly in the present embodiment includes: rotating rod 4 and second locking piece, wherein, rotating rod 4 level runs through the one end that the connecting arm 11 kept away from supporting seat 1, and in this embodiment, stake 12 is fixed at rotating rod 4 tip, and the extending direction of stake 12 is mutually perpendicular with the extending direction of rotating rod 4, through rotating rod 4, can drive stake 12 and rotate, adjusts the use angle of stake 12. A second locking member is provided on the connecting arm 11 to limit the rotation of the rotary lever 4.

Referring to fig. 1 and 5, the second locking member in the present embodiment includes: the locking device comprises a plurality of second locking holes 41, a connecting block 42, a second locking groove 43 and a second locking rod 44, wherein the plurality of second locking holes 41 are formed around the side wall of the rotating rod 4, the second locking holes 41 are located at one end of the rotating rod 4 far away from the pile 12, and the second locking holes 41 are uniformly distributed at intervals. The connecting block 42 is fixed at the end of the connecting arm 11 far away from the supporting seat 1, the second locking groove 43 is opened on the connecting block 42 in a penetrating manner, in the embodiment, the extending direction of the second locking groove 43 is perpendicular to the extending direction of the rotating rod 4, the second locking rod 44 slides in the second locking groove 43, and the size of the second locking rod 44 is matched with the size of the second locking hole 41.

Referring to fig. 5, a second latching block 441 is fixed at an end of the second locking rod 44 far from the rotating rod 4, wherein the size of the second latching block 441 is larger than that of an end of the second locking groove 43 far from the rotating rod 4, so that the second latching block 441 can be always located outside the adjusting bar 32, and a worker can adjust the position of the second locking rod 44 by rotating the second latching block 441.

Referring to fig. 5, in addition, a second stopper 442 is fixed on a side wall of the second locking lever 44 away from the second latching block 441, a second receiving opening 443 is opened on a side wall of the connecting block 42, the second receiving opening 443 is communicated with the second locking groove 43, and the size of the second receiving opening 443 is matched with the size of the second stopper 442. In addition, a second spring 444 is sleeved on the second locking lever 44, wherein one end of the second spring 444 is fixed on one side of the second locking groove 43 far away from the rotating rod 4, and the other end is fixed on the second limiting block 442.

The working principle and function of the second locking member are the same as those of the first locking member, and are not described in detail herein.

Referring to fig. 1-5, the application is implemented according to the following principles: the supporting base 1 can be fixed on the ground by inserting the pins 10 into the ground, and the retaining plate 13 with a proper size is selected according to the width of the slope. The retaining plate 13 is slidably coupled to the pile 12 by sliding the coupling strip 131 of the retaining plate 13 into the coupling groove 132 of the pile 12.

If the supporting positions of the two piles 12 on the retaining plate 13 need to be adjusted to ensure good retaining capacity of the retaining plate 13, the third locking rod 24 can be separated from the third locking hole 21 by sliding the third locking rod 24, and the distance between the two supporting columns 2 can be adjusted to adjust the distance between the two piles 12; the adjusting strip 32 can be slid according to the height of the slope by unlocking the first locking lever 35, thereby adjusting the height of the connecting arm 11, the pile 12 and the earth-retaining plate 13; according to the inclination of the slope, the rotating rod 4 can be rotated by unlocking the second locking rod 44, and the pile 12 is driven to rotate to a proper angle, so that the soil retaining plate 13 is attached to the slope.

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.

Claims

1. The utility model provides a stake structure for foundation ditch construction, its characterized in that includes: the bottom of the supporting seat (1) is vertically provided with a pin (10); the connecting arm (11) is obliquely arranged on the supporting seat (1); the pile column (12) is arranged on the side wall of the connecting arm (11) and is far away from one end of the supporting seat (1); the retaining plate (13) is connected to one side, away from the supporting seat (1), of the pile column (12) in a sliding mode; the lifting component is arranged at the top of the supporting seat (1) and used for adjusting the mounting height of the connecting arm (11); and set up in be used for adjusting on linking arm (11) stake (12) use angle's rotating assembly, wherein, stake (12) are kept away from spread groove (132) have been seted up to one side of supporting seat (1), keep off native board (13) lateral wall be provided with spread groove (132) looks adaptation's connecting strip (131).

2. The pile structure for foundation pit construction according to claim 1, wherein the lifting assembly comprises: the supporting column (2) is vertically arranged at the top of the supporting seat (1); the adjusting groove (3) is formed in the side wall of the supporting column (2) and the extending direction of the adjusting groove is consistent with the extending direction of the supporting column (2); an adjusting block (31) connected in the adjusting groove (3) in a sliding manner; the adjusting strip (32) is arranged on one side, far away from the supporting column (2), of the adjusting block (31) and is fixed with the connecting arm (11); and the first locking part is arranged on the supporting column (2) and used for locking the adjusting strip (32), wherein the extending direction of the adjusting strip (32) is perpendicular to the extending direction of the supporting column (2).

3. The pile structure for foundation pit construction according to claim 2, wherein the first locking member comprises: a plurality of first locking holes (33) arranged on the side wall of the support column (2); a first locking groove (34) which horizontally penetrates through the side wall of the adjusting strip (32); and a first locking rod (35) which is connected in the first locking groove (34) in a sliding manner and is matched with the first locking hole (33), wherein the extending direction of the first locking groove (34) is perpendicular to the extending direction of the supporting column (2).

4. The pile structure for foundation pit construction according to claim 3, wherein a first limiting block (352) is arranged on one side of the first locking rod (35) far away from the adjusting strip (32), a first accommodating opening (353) is formed in the side wall of the supporting column (2), the first accommodating opening (353) is communicated with the first locking groove (34), and the first accommodating opening (353) is matched with the first limiting block (352).

5. The pile structure for foundation pit construction according to claim 1, wherein the rotation member comprises: the rotating rod (4) horizontally penetrates through the connecting arm (11) and is fixed with the pile column (12); and a second locking piece arranged on the connecting arm (11) and used for limiting the rotation of the rotating rod (4).

6. The pile structure for foundation pit construction according to claim 5, wherein the second locking member comprises: a plurality of second locking holes (41) formed in the side wall of the rotating rod (4); the connecting block (42) is arranged at one end, far away from the supporting seat (1), of the connecting arm (11); a second locking groove (43) penetrating the side wall of the connecting block (42); and a second locking rod (44) connected in the second locking groove (43) in a sliding manner, wherein the extending direction of the second locking groove (43) is perpendicular to the extending direction of the rotating rod (4), and the size of the second locking rod (44) is matched with that of the second locking hole (41).

7. The pile structure for foundation pit construction according to claim 2, wherein the number of the support columns (2) is several, the top of the support base (1) is provided with an installation groove (20) with an extending direction consistent with the extending direction of the support base (1), the support columns (2) are connected in the installation groove (20) in a sliding manner, and the support base (1) is provided with a third locking piece for limiting the movement of the support columns (2).

8. The pile structure for foundation pit construction according to claim 7, wherein the third locking member comprises: a plurality of third locking holes (21) arranged at the top of the supporting seat (1); the sliding groove (22) is formed in the side wall of the supporting column (2) and the extending direction of the sliding groove is consistent with the extending direction of the supporting column (2); and a sliding block (23) connected with the inside of the sliding groove (22) in a sliding way; and the third locking rod (24) is arranged on one side, far away from the supporting column (2), of the sliding block (23) and is matched with the third locking hole (21).