Foundation pit supporting structure

Abstract

The utility model belongs to the technical field of foundation pit supporting, and particularly provides a foundation pit supporting structure. The foundation pit supporting structure comprises a bottom plate, a side plate, a hinge piece, a supporting piece and a push rod, the bottom plate is hinged to the side plate through the hinge piece, the fixed end of the supporting piece is hinged to the plate face of the side plate, the movable end of the supporting piece is supported on the upper surface of the bottom plate, the positioning end of the push rod is fixedly assembled on the bottom plate, and the telescopic end of the push rod is hinged to the movable end of the supporting piece. The push rod stretches to push the movable end of the supporting piece to slide on the upper surface of the bottom plate. The bottom plate and the side plates are in a pre-connected state, after the bottom plate and the side plates are conveyed to a construction site, the workload of field assembly work of workers is greatly reduced, and the assembly mode and strength are standardized; the push rod is matched with the supporting frame, the effect of integrating thrust output and supporting is achieved, the operation difficulty in the equipment deployment process is lowered, and meanwhile the consistency of the unfolded equipment is guaranteed; the arrangement precision of the foundation pit supporting structure is comprehensively improved, and the reliability of detection data is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit support, and in particular provides a foundation pit support structure. Background Art

[0002] The construction industry has experienced rapid development, and the design and construction plans for high-rise and super-high-rise buildings have become more sophisticated. When designing high-rise and super-high-rise buildings, multi-story basements are generally set up to ensure the stability of the building. To meet the requirements of this design, a deeper foundation pit excavation depth is required. The construction process of the foundation pit is limited by the geological characteristics of the construction area. Among them, when deep foundation pits are excavated in areas with high groundwater levels, the aquifers in the soil will be cut off, causing groundwater to seep into the foundation pit. After construction, the foundation pit is subject to risks such as quicksand and slope instability, which may lead to insufficient bearing capacity of the foundation. Therefore, under this working condition, the foundation pit needs to be drained and supported.

[0003] At present, the support structures that are widely used on the market are usually ready-assembled plates and steel frame structures. The structure is simple, but the deployment process is relatively cumbersome, requiring construction workers to complete the splicing work. In addition, the flatness and support angle after splicing are difficult to standardize, which is not conducive to data collection for monitoring work. Utility Model Content

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a foundation pit support structure includes a bottom plate, a side plate, a hinge, a support member and a push rod, the bottom plate and the side plate are hinged to each other through the hinge, the fixed end of the support member is hinged to the plate surface of the side plate, and its movable end is supported on the upper surface of the bottom plate, the positioning end of the push rod is fixedly assembled on the bottom plate, and its telescopic end is hinged to the movable end of the support member, and the telescopic end of the push rod can push the movable end of the support member to slide on the upper surface of the bottom plate;

[0005] An assembly seat and a bracket are fixedly installed on the upper surface of the bottom plate, the positioning end of the push rod is fixedly installed on the assembly seat, and the bracket is located below the push rod;

[0006] The edges of the bottom plate and the side plates are provided with joint surfaces.

[0007] Furthermore, a slot is provided at the edge of the side plate, a latch is inserted into the slot, and the latch is U-shaped.

[0008] Furthermore, the number of the supporting members is multiple, the movable ends of the multiple supporting members are connected in series via a horizontal axis, and the telescopic end of the push rod is sleeved on the horizontal axis;

[0009] A roller is rotatably mounted on the movable end of the support member, and a limit baffle is vertically arranged on the surface of the bottom plate.

[0010] Furthermore, a protrusion and a clamping block are arranged on the hinge.

[0011] Further, the foundation pit support structure further comprises a traction member, the traction member is a rope, and the rotation axis of the hinge extends outward to form a traction positioning end, one end of the traction member is fixed and wound around the rotation axis of the hinge member, and the other end is fixed to the middle of the horizontal axis.

[0012] Furthermore, the foundation pit support structure also includes a positioning seat and a support rod. The positioning seat is fixedly installed on the surface of the base plate. A plurality of oblique U-shaped slots are provided on the positioning seat. One end of the support rod is hinged to the middle part of the support member, and the other end is provided with a cylindrical block matching the shape of the U-shaped slot.

[0013] Furthermore, a guide wheel is provided at the bottom of the bracket, and a guide column is provided on the surface of the bottom plate, and the traction member is in contact with the guide wheel or the guide column when turning.

[0014] Furthermore, the guide column is composed of an annular seat, a column and an inverted conical limiting block. The column is integrally formed on the annular seat, and the inverted conical limiting block is integrally formed on the outer wall of the column.

[0015] Furthermore, the bottom plate is a rectangular bottom plate, and the multiple foundation pit support structures are spliced together by adhering to the inner wall of the foundation pit, and connecting plates are provided between the bottom plates of the multiple foundation pit support structures;

[0016] Positioning holes are provided on the rectangular bottom plate and the connecting plate, and connecting fasteners are installed between adjacent positioning holes.

[0017] Furthermore, the bottom plate is a special-shaped bottom plate, and a plurality of special-shaped bottom plates can be interlocked and spliced.

[0018] The beneficial effects of using the utility model are:

[0019] The bottom plate and side plates are in a pre-connected state and are transported to the construction site, which greatly reduces the workload of on-site assembly work for the staff and standardizes the assembly mode and strength;

[0020] By combining push rods with support frames, the thrust output and support are integrated, simplifying the operational difficulty of equipment deployment. In addition, the push rods of multiple groups of foundation pit support structures are uniformly controlled by the same set of electronic control equipment or hydraulic equipment, that is, the deployment operations of multiple groups of foundation pit support structures are carried out synchronously, ensuring the consistency of the equipment after deployment.

[0021] After the bottom plates are spliced, the overall inclination of the plate surface can be guaranteed to be uniform, making it easier to perform level correction;

[0022] Comprehensively improve the layout accuracy of foundation pit support structure and improve the reliability of various detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the utility model in a flattened state;

[0024] Figure 2 It is an exploded view of the utility model;

[0025] Figure 3 This is a schematic structural diagram of the bracket of the utility model;

[0026] Figure 4 This is a schematic structural diagram of the guide column of the utility model;

[0027] Figure 5 This is a splicing effect diagram of the second embodiment of the present utility model;

[0028] Figure 6 This is a splicing effect diagram of the third embodiment of the present utility model;

[0029] Figure 7 This is a top view of the L-shaped bottom plate of the utility model;

[0030] Reference numerals include:

[0031] 1. Bottom plate; 101. Limit baffle; 102. Positioning hole; 103. Rectangular bottom plate; 104. Connecting plate; 105. L-shaped plate;

[0032] 2. Side panel; 201. Slot; 202. Latch;

[0033] 3. hinge; 301. protrusion; 302. clamping block;

[0034] 4. Support member; 401. Horizontal axis; 402. Roller;

[0035] 5. Push rod; 501. Assembly seat; 502. Bracket;

[0036] 6. Connect fasteners;

[0037] 7. Traction parts; 701. Guide wheel;

[0038] 702, guide column; 7021, annular seat; 7022, column; 7023, inverted cone-shaped limit block;

[0039] 8. Positioning seat; 801. Support rod. DETAILED DESCRIPTION

[0040] The present invention is described in detail below with reference to the accompanying drawings.

[0041] Example 1

[0042] Reference Figure 1-Figure 5The foundation pit support structure includes a bottom plate 1, a side plate 2, a hinge 3, a support member 4 and a push rod 5. The bottom plate 1 and the side plate 2 are hinged to each other through the hinge 3. The fixed end of the support member 4 is hinged to the plate surface of the side plate 2, and its movable end is supported on the upper surface of the bottom plate 1. The positioning end of the push rod 5 is fixedly assembled on the bottom plate 1, and its telescopic end is hinged to the movable end of the support member 4. The telescopic push rod 5 can push the movable end of the support member 4 to slide on the upper surface of the bottom plate 1;

[0043] An assembly seat 501 and a bracket 502 are fixedly mounted on the upper surface of the base plate 1. The positioning end of the push rod 5 is fixedly mounted on the assembly seat 501, and the bracket 502 is located below the push rod 5.

[0044] The edges of the bottom plate 1 and the side plates 2 are both provided with joint surfaces.

[0045] A slot 201 is provided at the edge of the side panel 2, a latch 202 is inserted into the slot 201, and the latch 202 is U-shaped;

[0046] Specifically, when a plurality of side panels 2 are deployed in the foundation pit, two adjacent side panels 2 are fixed to each other via the latches 202 .

[0047] Preferably, the joint surface is a toothed joint surface.

[0048] Preferably, the support member 4 is a straight rod with a rectangular cross section.

[0049] Specifically, there are multiple support members 4 , and the movable ends of the multiple support members 4 are connected in series through a horizontal shaft 401 , and the telescopic end of the push rod 5 is sleeved on the horizontal shaft 401 .

[0050] Preferably, the movable end of the support member 4 is rotatably mounted with a roller 402, and a limit baffle 101 is vertically arranged on the surface of the base plate 1. When the side panel 2 is rotated to a vertical state, the movable end of the support member 4 is adjacent to the limit baffle 101. When the rotation angle of the side panel 2 exceeds 90 degrees, the movable end of the support member 4 abuts against the limit baffle 101.

[0051] Preferably, a protrusion 301 and a clamping block 302 are arranged on the hinge 3. When the side panel 2 rotates to a vertical state, the protrusion 301 and the clamping block 302 abut against each other.

[0052] The foundation pit support structure further includes a traction member 7, which is a rope. The rotation axis of the hinge 3 extends outward to form a traction positioning end. One end of the traction member 7 is fixed to and wrapped around the traction positioning end of the rotation axis of the hinge 3, and the other end is fixed to the middle of the horizontal axis 401.

[0053] Among them, the rotating shaft and the side plate 2 are fixedly connected;

[0054] When the horizontal axis 401 moves away from the hinge 3, it drags the traction member 7, causing it to be gradually released from the rotation axis traction positioning end of the hinge 3, driving the rotation axis of the hinge 3 to rotate, and driving the side panel 2 to swing from the horizontal state to the vertical state.

[0055] The foundation pit support structure also includes a positioning seat 8 and a support rod 801. The positioning seat 8 is fixedly installed on the surface of the base plate 1. A plurality of oblique U-shaped slots are provided on the positioning seat 8. One end of the support rod 801 is hinged to the middle part of the support member 4, and the other end is provided with a cylindrical block matching the shape of the U-shaped slot.

[0056] Preferably, a guide wheel 701 is provided at the bottom of the bracket 502, and a guide column 702 is provided on the surface of the bottom plate 1. When the traction member 7 turns, it is in contact with the guide wheel 701 or the guide column 702.

[0057] Specifically, the guide column 702 is composed of an annular seat 7021, a column 7022 and an inverted conical stopper 7023. The column 7022 is integrally formed on the annular seat 7021, and the inverted conical stopper 7023 is integrally formed on the outer wall of the column 7022.

[0058] When the traction member 7 passes through the guide column 702, the traction member 7 is fitted with the column 7022 and is restricted by the inverted conical stop block 7023 between the inverted conical stop block 7023 and the bottom plate 1;

[0059] Preferably, the cross-sections of the column 7022 and the inverted cone-shaped limiting block 7023 are both fan-shaped.

[0060] Example 2

[0061] Compared with the first embodiment, the present embodiment is different in that:

[0062] Specifically, refer to Figure 5 The bottom plate 1 is a rectangular bottom plate 103, and multiple foundation pit support structures are spliced together by adhering to the inner wall of the foundation pit. A connecting plate 104 is provided between the bottom plates 1 of the multiple foundation pit support structures.

[0063] Positioning holes 102 are formed on the rectangular bottom plate 103 and the connecting plate 104 , and connecting fasteners 6 are installed between adjacent positioning holes 102 .

[0064] Example 3

[0065] Compared with the first embodiment, the difference of this embodiment is:

[0066] Specifically, refer to Figure 6 and Figure 7 , bottom plate 1 is a special-shaped bottom plate.

[0067] Among them, when the foundation pit is a relatively regular rectangle, the special-shaped bottom plate is preferably an L-shaped plate 105, and four L-shaped plates 105 can be interlocked and spliced with each other.

[0068] The above content is only a preferred embodiment of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scope based on the concept of the present invention. As long as these changes do not deviate from the concept of the present invention, they all fall within the scope of protection of the present invention.

Claims

1. Foundation pit support structure, characterized by: The bottom plate and the side plate are hinged to each other through the hinge, the fixed end of the support is hinged to the plate surface of the side plate, and the movable end is supported on the upper surface of the bottom plate. The positioning end of the push rod is fixedly assembled on the bottom plate, and the telescopic end is hinged to the movable end of the support. The push rod can push the movable end of the support to slide on the upper surface of the bottom plate when it is telescopic. An assembly seat and a bracket are fixedly installed on the upper surface of the bottom plate, the positioning end of the push rod is fixedly installed on the assembly seat, and the bracket is located below the push rod; The edges of the bottom plate and the side plates are provided with joint surfaces.

2. The foundation pit support structure according to claim 1, characterized in that: A slot is provided at the edge of the side plate, a latch is inserted into the slot, and the latch is U-shaped.

3. The foundation pit support structure according to claim 1, characterized in that: There are multiple support members, the movable ends of the multiple support members are connected in series through a horizontal axis, and the telescopic end of the push rod is sleeved on the horizontal axis; A roller is rotatably mounted on the movable end of the support member, and a limit baffle is vertically arranged on the surface of the bottom plate.

4. The foundation pit support structure according to claim 1, characterized in that: The hinge is provided with a convex block and a clamping block.

5. The foundation pit support structure according to claim 3, characterized in that: The foundation pit support structure also includes a traction member, which is a rope. The rotating shaft of the hinge extends outward to form a traction positioning end. One end of the traction member is fixed and wrapped around the rotating shaft traction positioning end of the hinge, and the other end is fixed to the middle of the horizontal axis.

6. The foundation pit support structure according to claim 1, characterized in that: The foundation pit support structure also includes a positioning seat and a support rod. The positioning seat is fixedly installed on the surface of the base plate. A plurality of oblique U-shaped slots are provided on the positioning seat. One end of the support rod is hinged to the middle part of the support member, and the other end is provided with a cylindrical block matching the shape of the U-shaped slot.

7. The foundation pit supporting structure according to claim 5, characterized in that: A guide wheel is provided at the bottom of the bracket, and a guide column is provided on the surface of the bottom plate. When the traction member turns, it is in contact with the guide wheel or the guide column.

8. The foundation pit support structure according to claim 7, characterized in that: The guide column is composed of an annular seat, a column and an inverted conical limiting block. The column is integrally formed on the annular seat, and the inverted conical limiting block is integrally formed on the outer wall of the column.

9. The foundation pit supporting structure according to claim 1, characterized in that: The bottom plate is a rectangular bottom plate, and multiple foundation pit support structures are spliced together by adhering to the inner wall of the foundation pit, and connecting plates are provided between the bottom plates of the multiple foundation pit support structures; Positioning holes are provided on the rectangular bottom plate and the connecting plate, and connecting fasteners are installed between adjacent positioning holes.

10. The foundation pit supporting structure according to claim 1, characterized in that: The bottom plate is an L-shaped plate, and four L-shaped plates can be interlocked to achieve splicing.

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