Foundation pit side wall supporting structure capable of being automatically unfolded

Abstract

The invention discloses an automatic unfolding foundation pit side wall supporting structure which comprises a foundation pit ground supporting plate and a foundation pit side face overturning supporting plate hinged to the foundation pit ground supporting plate, and a hydraulic cylinder overturning driving mechanism is arranged between the foundation pit ground supporting plate and the foundation pit side face overturning supporting plate. A parallel overturning lower supporting assembly and a parallel overturning side supporting assembly are arranged on the two sides of the foundation pit ground supporting plate and the two sides of the foundation pit side face overturning supporting plate correspondingly, when the foundation pit supporting structure is installed, an oil cylinder is started, the foundation pit supporting structure can be automatically unfolded by 90 degrees, and in the unfolding process, the two face expanding supporting plates in the foundation pit supporting structure are automatically unfolded; the expansion supporting plates are arranged in the four positions and are finally flush with the main body plate, the supporting area is increased, the expansion supporting plates in the four positions are automatically folded during storage, the transverse occupied space in the transferring process is reduced, carrying is easier, the expansion supporting plates are turned over in parallel in the unfolding process, three supporting inclined rods are arranged for supporting after unfolding, and stability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of foundation pit support, in particular to a foundation pit side wall support structure capable of automatic unfolding. BACKGROUND

[0002] The foundation pit support is a support, reinforcement and protection measure for the side wall of the foundation pit and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. The foundation pit is a soil pit excavated at the foundation design position according to the foundation elevation and the foundation plane size. Since the soil pit has the risk of collapse, the side wall of the foundation pit needs to be supported by a support plate during construction. The side wall of the foundation pit is mud. Dry mud is easy to break, and wet mud is relatively soft. Therefore, the side wall of the foundation pit is easy to change after a period of time. The traditional protection structure occupies a large space and has a small protection area. Therefore, a plurality of protection structures need to be installed to protect the foundation pit. Therefore, a more complicated situation occurs during construction and transportation. In view of the above problems, a foundation pit support structure capable of automatic folding during transportation and automatic expansion of the support area during fixed unfolding needs to be designed.

[0003] Therefore, the existing foundation pit support technology needs to be further improved. SUMMARY

[0004] The purpose of the present application is to provide a foundation pit side wall support structure capable of automatic unfolding of the support area during use, reducing the number of installed protection structures, and automatic folding during transportation.

[0005] In order to achieve the above purpose, the following scheme is adopted in the present application.

[0006] A foundation pit side wall support structure capable of automatic unfolding, comprising a foundation pit ground support plate and a foundation pit side surface turnover support plate hinged to the foundation pit ground support plate, a hydraulic cylinder turnover driving mechanism is arranged between the foundation pit ground support plate and the foundation pit side surface turnover support plate, parallel turnover lower support assemblies and parallel turnover side support assemblies are arranged on both sides of the foundation pit ground support plate and the foundation pit side surface turnover support plate, a side pushing assembly for driving the parallel turnover lower support assemblies on both sides to turn outwards is arranged between the hydraulic cylinder turnover driving mechanism and the foundation pit ground support plates on both sides, a synchronous side opening support structure is arranged between the parallel turnover lower support assembly and the corresponding parallel turnover side support assembly on one side, and a positioning plug structure is arranged on the foundation pit ground support plate.

[0007] Further, the hydraulic cylinder turnover driving mechanism comprises a hydraulic oil cylinder arranged on the foundation pit ground support plate, a first hinge part is arranged at the output end of the hydraulic oil cylinder, a second hinge part is arranged on the foundation pit side surface turnover support plate, and an intermediate support rod is hinged between the second hinge part and the first hinge part.

[0008] Further, the parallel flip lower support assembly comprises a lower support plate;

[0009] The parallel flip side support assembly comprises a side support plate;

[0010] Further, the parallel flip side support assembly comprises a side support plate;

[0011] Further, the parallel flip link mechanism comprises a third hinge part and a fourth hinge part arranged on the lower support plate and the side support plate, a fifth hinge part and a sixth hinge part arranged on both sides of the foundation ground support plate and the foundation side flip support plate, a first link hinge connected between the third hinge part and the corresponding fifth hinge part, and a second link hinge connected between the fourth hinge part and the corresponding sixth hinge part;

[0012] The first link and the second link are of the same length and arranged in parallel.

[0013] Further, the side pushing assembly comprises a transverse guide rail arranged on the foundation ground support plate, a pushing slider movably arranged on both sides of the transverse guide rail, a vertical piece arranged on the pushing slider, a vertical straight slot arranged on the vertical piece, a longitudinal driving shaft arranged on the lower support plate, and the longitudinal driving shaft inserted into the vertical straight slot.

[0014] The hydraulic oil cylinder output end is provided with a first hinge seat on both sides, the pushing slider is provided with a second hinge seat, and an unfolding link is hinge connected between the first hinge seat and the second hinge seat.

[0015] Further, the synchronous side opening support structure comprises a lower hinge support shaft arranged on the lower support plate, a vertical sliding groove arranged on the side support plate, a vertical sliding piece movably arranged in the vertical sliding groove, a side hinge support shaft arranged on the vertical sliding piece, and a side support rod hinge connected between the lower hinge support shaft and the side hinge support shaft.

[0016] Further, after the foundation ground support plate and the foundation side flip support plate are unfolded to be vertical:

[0017] The foundation ground support plate, the foundation side flip support plate, and the intermediate support rod form a triangular support structure.

[0018] The lower support plate, the side support plate, and the side support rod form a triangular support structure.

[0019] Further, the positioning plug structure comprises a plug hole arranged on the foundation pit ground support plate, and a positioning plug is arranged in the plug hole.

[0020] Further, the foundation pit ground support plate, the foundation pit side overturning support plate, the lower support plate and the outer surface of the side support plate are provided with an anti-skid surface structure.

[0021] Further, the anti-skid surface structure is made of rubber material.

[0022] In summary, the present application has the following advantages over the prior art:

[0023] The present application solves the problems existing in the prior art foundation pit support structure. Through the structure of the present application, the following advantages are achieved: when installing the foundation pit support support, the oil cylinder can be automatically expanded by 90 degrees, and during the expansion process, the two internal face expansion support plates are automatically expanded and finally flush with the main plate, increasing the support area. When storing, the four position expansion support plates are automatically retracted, reducing the transverse space occupied during transportation and making it easier to transport. During the expansion of the expansion support plate, it is parallel to the overturning, and after expansion, three support inclined rods are arranged for support, improving the stability. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a first state perspective view of the present application;

[0025] Figure 2 It is a second state perspective view of the present application;

[0026] Figure 3 It is a third state perspective view of the present application;

[0027] Figure 4 It is an installation structure schematic view of the present application;

[0028] Figure 5 It is a internal structure schematic view of the present application;

[0029] Figure 6 It is a second internal structure schematic view of the present application. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] Please refer to Figures 1-6The application provides an automatic unfolding foundation pit side wall supporting structure, which comprises a foundation pit ground support plate 1, a foundation pit side surface turnover support plate 2 hinged to the foundation pit ground support plate 1, a hydraulic cylinder turnover driving mechanism 3 arranged between the foundation pit ground support plate 1 and the foundation pit side surface turnover support plate 2, parallel turnover lower support assemblies 4 and parallel turnover side support assemblies 5 arranged on both sides of the foundation pit ground support plate 1 and the foundation pit side surface turnover support plate 2 respectively, a side pushing assembly 8 arranged between the hydraulic cylinder turnover driving mechanism 3 and both sides of the foundation pit ground support plate 1 and used for driving both sides of the parallel turnover lower support assemblies 4 to turn outwards, a synchronous side opening support structure 9 arranged between the parallel turnover lower support assembly 4 and the corresponding side of the parallel turnover side support assembly 5, and a positioning plug structure 7 arranged on the foundation pit ground support plate 1.

[0032] When installed, the structure of the application is installed at the corner positions of two surfaces of a foundation pit, and the positioning plug structure 7 is installed in the soil under the surface of the foundation pit.

[0033] The hydraulic cylinder turnover driving mechanism 3 is started, and the foundation pit side surface turnover support plate 2 is turned upwards by 90° relative to the foundation pit ground support plate 1.

[0034] During the turnover process, both sides of the side pushing assembly 8 are simultaneously unfolded, and both sides of the parallel turnover lower support assembly 4 are pushed to move.

[0035] During the movement of the parallel turnover lower support assembly 4 to one side and the parallel turnover of the foundation pit ground support plate 1, the foundation pit ground support plate 1 is finally spliced on one side.

[0036] During the side turnover of the parallel turnover lower support assembly 4, the synchronous side opening support structure 9 works in cooperation with the synchronous side opening support structure 9, so that the synchronous side opening support structure 9 drives the parallel turnover side support assembly 5 on the same side to unfold, and during the process, the parallel turnover side support assembly 5 and the foundation pit side surface turnover support plate 2 keep parallel turnover, and finally are spliced on one side of the foundation pit side surface turnover support plate 2, so that the supporting area of the foundation pit side surface turnover support plate 2 and the foundation pit ground support plate 1 is increased.

[0037] The hydraulic cylinder turnover driving mechanism 3 comprises a hydraulic oil cylinder 301 arranged on the foundation pit ground support plate 1, a first hinge part 302 arranged at the output end of the hydraulic oil cylinder 301, a second hinge part 303 arranged on the foundation pit side surface turnover support plate 2, and an intermediate support rod 304 hinged between the second hinge part 303 and the first hinge part 302.

[0038] The hydraulic oil cylinder 301 is stretched forward, the lower end of the intermediate support rod 304 is driven to move forward, and the upper end of the intermediate support rod 304 pushes the foundation pit side surface turnover support plate 2 to turn upwards.

[0039] The parallel flipping lower support assembly 4 of the present invention includes a lower support plate 401;

[0040] The parallel flipping side support assembly 5 includes a side support plate 502;

[0041] It also includes multiple parallel flipping linkage mechanisms 6, which are disposed between the lower support plate 401 and the pit ground support plate 1, and between the side support plate 502 and the pit side flipping support plate 2.

[0042] The parallel flipping linkage mechanism 6 of the present invention includes a third hinge portion 4021 and a fourth hinge portion 4022 disposed on the lower support plate 401 and the side support plate 502. A fifth hinge portion 4023 and a sixth hinge portion 4024 are disposed on both sides of the pit ground support plate 1 and the pit side flipping support plate 2. A first connecting rod 4025 is hinged between the third hinge portion 4021 and a corresponding fifth hinge portion 4023. A second connecting rod 4026 is hinged between the fourth hinge portion 4022 and a corresponding sixth hinge portion 4024.

[0043] The first connecting rod 4025 and the second connecting rod 4026 are of the same length and are arranged parallel to each other;

[0044] When the lower support plate 401 and the side support plate 502 move to one side, they are kept in parallel rotation by the above-mentioned hinges and connecting rods, ensuring that the lower support plate 401 and the side support plate 502 are finally attached to the surface of the pit.

[0045] The side-pushing assembly 8 of the present invention includes a transverse guide rail 501 disposed on the foundation pit ground support plate 1, a pushing slider 509 movably disposed on each of the left and right sides of the transverse guide rail 501, a vertical member 503 disposed on the pushing slider 509, a vertical straight slot 504 disposed on the vertical member 503, and a longitudinal drive shaft 505 disposed on the lower support plate 401, the longitudinal drive shaft 505 being inserted into the vertical straight slot 504;

[0046] The hydraulic cylinder 301 has a first hinge seat 508 on each side of its output end, and a second hinge seat 506 on the push slider 509. An unfolding connecting rod 507 is hinged between the first hinge seat 508 and the second hinge seat 506.

[0047] When the hydraulic cylinder 301 extends forward, it drives the first hinge seat 508 to move forward. At this time, the first hinge seat 508 pushes the unfolding link 507 on the corresponding side to move, and the outer end of the unfolding link 507 pushes the corresponding second hinge seat 506 to move outward.

[0048] The second hinge seat 506 drives the push slider 509 to move outward, and the push slider 509 drives the vertical member 503 and the vertical straight slot 504 to move outward;

[0049] At this time, the vertical straight slot 504 drives the longitudinal drive shaft 505 on the lower support plate 401 to move outward. Since the lower support plate 401 will change height during the flipping process, the vertical straight slot 504 provides vertical movement space for the longitudinal drive shaft 505 and keeps it moving outward synchronously.

[0050] The synchronous side-opening support structure 9 of the present invention includes a lower hinged support shaft 601 disposed on the lower support plate 401, a vertical sliding groove 602 disposed on the side support plate 502, a vertical sliding member 603 movably disposed in the vertical sliding groove 602, a side hinged support shaft 604 disposed on the vertical sliding member 603, and a side support rod 605 hinged between the lower hinged support shaft 601 and the side hinged support shaft 604;

[0051] When one of the lower support plates 401 flips outward, the side support plate 502 is kept in the same outward flipping position as the lower support plate 401 by the synchronous side opening support structure 9.

[0052] The vertical sliding member 603 and the side support rod 605 are kept in the same lateral opposite direction. When the side support plate 502 flips backward, the vertical sliding member 603 adjusts its height position and changes the angle of the side support rod 605. Finally, the side support rod 605 further supports the foundation pit support structure.

[0053] After the foundation pit ground support plate 1 and the foundation pit side flip support plate 2 are unfolded into a vertical state, the present invention can be described as follows:

[0054] The pit ground support plate 1, the pit side flip support plate 2 and the middle support rod 304 form a triangular support structure;

[0055] The lower support plate 401, the side support plate 502, and the side support rod 605 form a triangular support structure.

[0056] The positioning plug structure 7 of the present invention includes a plug hole 701 provided on the foundation pit ground support plate 1, a positioning plug 702 installed in the plug hole 701, and a positioning plug 703 provided at the bottom of the positioning plug 702.

[0057] The outer surfaces of the foundation pit ground support plate 1, the foundation pit side flipping support plate 2, the lower support plate 401 and the side support plate 502 of the present invention are provided with anti-slip surface structures 100.

[0058] The anti-slip surface structure 100 of the present invention is made of rubber material.

[0059] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatically deployable pit sidewall support structure, comprising a pit ground support plate (1) and a pit side-turning support plate (2) hinged to the pit ground support plate (1), characterized in that: A hydraulic cylinder flipping drive mechanism (3) is provided between the foundation pit ground support plate (1) and the foundation pit side flipping support plate (2). Parallel flipping lower support assembly (4) and parallel flipping side support assembly (5) are respectively provided on both sides of the foundation pit ground support plate (1) and the foundation pit side flipping support plate (2). A side pushing assembly (8) for driving the parallel flipping lower support assembly (4) on both sides to flip out to both sides is provided between the hydraulic cylinder flipping drive mechanism (3) and the foundation pit ground support plates (1) on both sides. A synchronous side opening support structure (9) is provided between the parallel flipping lower support assembly (4) and the corresponding side parallel flipping side support assembly (5). A positioning insert structure (7) is provided on the foundation pit ground support plate (1).

2. The automatically deployable pit sidewall support structure according to claim 1, characterized in that: The hydraulic cylinder tilting drive mechanism (3) includes a hydraulic cylinder (301) mounted on the pit ground support plate (1). The output end of the hydraulic cylinder (301) is provided with a first hinge part (302), and the pit side tilting support plate (2) is provided with a second hinge part (303). An intermediate support rod (304) is hinged between the second hinge part (303) and the first hinge part (302).

3. The automatically deployable pit sidewall support structure according to claim 2, characterized in that: The parallel flipping lower support assembly (4) includes a lower support plate (401); The parallel flip-side support assembly (5) includes a side support plate (502); It also includes multiple parallel flipping linkage mechanisms (6), which are disposed between the lower support plate (401) and the pit ground support plate (1), and between the side support plate (502) and the pit side flipping support plate (2).

4. The automatically deployable pit sidewall support structure according to claim 3, characterized in that: The parallel flipping linkage mechanism (6) includes a third hinge part (4021) and a fourth hinge part (4022) disposed on the lower support plate (401) and the side support plate (502). A fifth hinge part (4023) and a sixth hinge part (4024) are disposed on both sides of the pit ground support plate (1) and the pit side flipping support plate (2). A first link (4025) is hinged between the third hinge part (4021) and a corresponding fifth hinge part (4023). A second link (4026) is hinged between the fourth hinge part (4022) and a corresponding sixth hinge part (4024). The first link (4025) and the second link (4026) are of the same length and are arranged parallel to each other.

5. The automatically deployable pit sidewall support structure according to claim 4, characterized in that: The side-pushing assembly (8) includes a transverse guide rail (501) disposed on the foundation pit ground support plate (1), and a pushing slider (509) is movably disposed on each of the left and right sides of the transverse guide rail (501). A vertical component (503) is disposed on the pushing slider (509), and a vertical straight slot (504) is disposed on the vertical component (503). A longitudinal drive shaft (505) is disposed on the lower support plate (401), and the longitudinal drive shaft (505) is inserted into the vertical straight slot (504). The hydraulic cylinder (301) has a first hinge seat (508) on each side of its output end, and a second hinge seat (506) is provided on the push slider (509). An unfolding connecting rod (507) is hinged between the first hinge seat (508) and the second hinge seat (506).

6. The automatically deployable pit sidewall support structure according to claim 5, characterized in that: The synchronous side-opening support structure (9) includes a lower hinged support shaft (601) disposed on the lower support plate (401), a vertical sliding groove (602) disposed on the side support plate (502), a vertical sliding member (603) movably disposed in the vertical sliding groove (602), a side hinged support shaft (604) disposed on the vertical sliding member (603), and a side support rod (605) hinged between the lower hinged support shaft (601) and the side hinged support shaft (604).

7. The automatically deployable pit sidewall support structure according to claim 6, characterized in that: After the pit ground support plate (1) and the pit side flip support plate (2) are unfolded into a vertical state: The pit ground support plate (1), the pit side flip support plate (2), and the intermediate support rod (304) form a triangular support structure; The lower support plate (401), the side support plate (502), and the side support rod (605) form a triangular support structure.

8. The automatically deployable pit sidewall support structure according to claim 7, characterized in that: The positioning plug structure (7) includes a socket (701) provided on the foundation pit ground support plate (1), a positioning plug (702) is installed in the socket (701), and a positioning plug (703) is provided at the bottom of the positioning plug (702).

9. The automatically deployable pit sidewall support structure according to claim 8, characterized in that: The outer surfaces of the pit ground support plate (1), the pit side flip support plate (2), the lower support plate (401) and the side support plate (502) are provided with anti-slip surface structures (100).

10. The automatically deployable foundation pit sidewall support structure according to claim 9, characterized in that: The anti-slip surface structure (100) is made of rubber material.

Images