External anchoring and internal supporting type foundation pit supporting structure

Abstract

The utility model discloses an external anchoring and internal supporting type foundation pit supporting structure, which belongs to the technical field of foundation pit supporting and comprises a bottom plate with a groove formed in one side, and a supporting plate for supporting a foundation pit is arranged in the groove of the bottom plate; two supporting seats are arranged on the side, close to the bottom plate, of the supporting plate side by side, sliding grooves corresponding to the supporting seats are formed in the corresponding sides of the supporting plate, sliding blocks inserted into the sliding grooves are connected to one sides of the supporting seats, and a plurality of fixing holes are formed in the two sides of each sliding groove side by side; fixing bolts are connected between the supporting seats and the corresponding fixing holes in a threaded mode, a supporting frame is connected to one side of each supporting seat, a supporting rod is connected to the inner side of each supporting frame through a pin shaft, a mounting frame is connected to one end of each supporting rod through a pin shaft, and a mounting seat is mounted at the bottom of each mounting frame and mounted at the top of the bottom plate. According to the external anchoring and internal supporting type foundation pit supporting structure, the angle of the supporting plate can be conveniently adjusted according to construction requirements, and the stability after construction is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit support, in particular to an external anchor and internal support type foundation pit support structure. Background Art

[0002] The foundation pit support structure is a common construction engineering structure. Its main function is to ensure the stability and safety of the foundation pit, so as to effectively prevent landslides, collapses and other problems in the foundation pit during construction and reduce construction safety risks. In order to reduce the deformation around the foundation pit, an external anchor and internal support type foundation pit support structure is required, and for the convenience of construction, the structure needs to be improved.

[0003] Although the existing device can improve the convenience of construction, it is not convenient to adjust the angle of the support plate according to the construction needs.

[0004] For example, the Chinese utility model application number CN202023258485.4 is an external anchor internal support type foundation pit support structure, including: support piles; upper crown beams arranged at the upper ends of the support piles; anchor piers detachably assembled on the ground surface and located around the upper crown beams; multiple anchor rods with one end fixedly connected to the upper crown beam and the other end passing through the upper crown beam and connected to the anchor piers; and a lower support beam arranged at the lower end of the upper crown beam for supporting the lower part of the foundation pit, the lower support beam including: a lower crown beam arranged along the inner wall of the foundation pit; a cross beam connected to the opposite side of the lower crown beam for supporting the lower crown beam; and an inclined beam arranged at the corner of the lower crown beam. This mechanism cannot conveniently adjust the angle of the support plate according to construction needs. Utility Model Content

[0005] The utility model aims to provide an external anchor and internal support type foundation pit support structure to solve the problems raised in the background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an external anchor internal support type foundation pit support structure, comprising:

[0007] A bottom plate with a groove on one side, wherein a supporting plate for foundation pit support is arranged in the groove of the bottom plate;

[0008] Two support seats are arranged side by side on one side of the support plate close to the base plate, a slide groove corresponding to the support seat is constructed on the corresponding side of the support plate, and a sliding block inserted in the slide groove is connected to one side of the support seat, and a plurality of fixing holes are arranged side by side on both sides of the slide groove, fixing bolts are screwed between the support seat and the corresponding fixing holes, a support frame is connected to one side of the support frame, and a support rod is connected to the inner side of the support frame through a pin shaft, one end of the support rod is connected to a mounting frame through a pin shaft, a mounting seat is installed at the bottom of the mounting frame, and the mounting seat is installed on the top of the base plate.

[0009] In a further embodiment, two anchoring piers are cast side by side on the top of the base plate, and anchor rods are anchored in the middle of the anchoring piers.

[0010] In a further embodiment, the anchor pier is a cylindrical structure, and two anchor piers are located on both sides of the supporting plate.

[0011] In a further embodiment, two rows of anchor holes are arranged side by side on the top of the bottom plate.

[0012] In a further embodiment, rotating shafts are welded to the lower portions of both symmetrical sides of the supporting plate, and the rotating shafts are installed on the corresponding sides of the grooves through bearings.

[0013] In a further embodiment, corresponding mounting holes are provided on the top of the mounting seat and the bottom plate, and mounting bolts are screwed between the corresponding mounting holes.

[0014] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0015] The original scheme of the external anchor internal support type foundation pit support structure reduces the engineering workload through multiple pre-set components, thereby improving the convenience of construction. However, if the angle of the support plate needs to be adjusted, the support plate needs to be removed and reinstalled on one side of the base plate. The present scheme only needs to unscrew the fixing bolts, then adjust the support seat to slide to change the angle of the support plate, and then re-screw the fixing bolts to complete the adjustment. The angle of the support plate can be easily adjusted according to the construction needs, further improving the convenience of construction.

[0016] The bottom plate is fixed around the foundation pit by two anchor piers and anchor rods, while the support plate is supported on the top of the bottom plate by two support rods and corresponding components, and at the same time there are two rotating shafts for position limiting. The above components can ensure high stability after construction.

[0017] The external anchor internal support type foundation pit support structure can conveniently adjust the angle of the support plate according to construction needs, and has high stability after construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 For the utility model Figure 1 Schematic diagram of the structure of the middle support plate;

[0021] Figure 3 For the utility model Figure 1 A magnified view of the structure at center A;

[0022] Figure 4 For the utility model Figure 1 A magnified view of the structure at B in the middle.

[0023] Description of reference numerals:

[0024] In the figure: 1. Base plate; 2. Support plate; 3. Support seat; 4. Slide; 5. Support frame; 6. Fixing bolt; 7. Fixing hole; 8. Support rod; 9. Mounting seat; 10. Mounting frame; 11. Mounting bolt; 12. Anchor pier; 13. Anchor rod; 14. Anchor hole; 15. Rotating shaft. DETAILED DESCRIPTION

[0025] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0026] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0027] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0028] In order to conveniently adjust the angle of the support plate 2 according to construction needs, Figures 1 to 4 A bottom plate 1 is constructed with a groove on one side, and a support plate 2 for foundation pit support is arranged in the groove of the bottom plate 1. Rotating shafts 15 are welded to the lower parts of the two symmetrical sides of the support plate 2. The welding connection is more stable. The rotating shaft 15 is installed on the corresponding side of the groove through a bearing (not shown in the figure), so that the support plate 2 can adjust the angle with the bottom plate 1 through the rotating shaft 15, and the rotating shaft 15 can ensure the axial stability of the support plate 2.

[0029] Two support seats 3 are arranged side by side on one side of the support plate 2 close to the base plate 1, and a slide groove 4 corresponding to the support seat 3 is constructed on the corresponding side of the support plate 2, and a slider inserted in the slide groove 4 is connected to one side of the support seat 3 by screws. The support seat 3 can slide in the slide groove 4 through the slider to adjust the height on the corresponding side of the support plate 2, thereby changing the angle of the support plate 2.

[0030] A plurality of fixing holes 7 are arranged side by side on both sides of the slide groove 4, and fixing bolts 6 are screwed between the support seat 3 and the corresponding fixing holes 7. A plug hole (not shown in the figure) corresponding to the fixing hole 7 is arranged on one side of the support seat 3, and the fixing bolts 6 are screwed between the plug hole and the corresponding fixing hole 7, so as to fix the support seat 3 to the corresponding side of the support plate 2. A support frame 5 is connected to one side of the support seat 3, and a support rod 8 is connected to the inner side of the support frame 5 through a pin shaft. The support rod 8 can be deflected relative to the support frame 5 through the pin shaft, so as to adapt to the movement of the support seat 3.

[0031] One end of the support rod 8 is connected to the mounting frame 10 through a pin shaft, and the corresponding end of the support rod 8 can be deflected relative to the mounting frame 10 through the pin shaft to adapt to the movement of the support seat 3. A mounting seat 9 is installed at the bottom of the mounting frame 10, and corresponding mounting holes are opened on the top of the mounting seat 9 and the base plate 1, and mounting bolts 11 are screwed between the corresponding mounting holes for fixing the mounting seat 9 on the corresponding side of the base plate 1.

[0032] Two anchor piers 12 are cast side by side on the top of the base plate 1, and an anchor rod 13 is anchored in the middle of the anchor pier 12. The two anchor piers 12 cooperate with the anchor rod 13 to fix the base plate 1 more firmly around the foundation pit. The anchor pier 12 is a cylindrical structure to prevent workers from accidentally touching it and causing limb injuries. The two anchor piers 12 are located on both sides of the support plate 2. Two rows of anchor holes 14 are opened side by side on the top of the base plate 1. Anchor rods 13 can be installed in the anchor holes 14 as needed to improve stability.

[0033] How it works

[0034] The external anchor and internal support foundation pit support structure places the base plate 1 near the foundation pit, and then casts anchor piers 12 and anchor rods 13 to fix it. In the same way, multiple groups of this structure are fixed to surround the foundation pit. The angle between the support plate 2 and the base plate 1 is adjusted by the rotating shaft 15 according to actual construction needs. Before adjustment, the corresponding fixing bolts 6 need to be screwed out first. The support seat 3 can slide in the slide groove 4 through the slider to adjust the height on the corresponding side of the support plate 2, thereby changing the angle of the support plate 2. The support rod 8 can be deflected relative to the support frame 5 and the mounting frame 10 through the pin shaft to adapt to the movement of the support seat 3. After the adjustment is completed, the fixing bolts 6 can be re-screwed.

[0035] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An external anchor and internal support type foundation pit support structure, comprising: A bottom plate (1) having a groove formed on one side, wherein a support plate (2) for supporting a foundation pit is arranged in the groove of the bottom plate (1); The invention is characterized in that: two support seats (3) are arranged side by side on one side of the support plate (2) close to the base plate (1); a slide groove (4) corresponding to the support seat (3) is constructed on the corresponding side of the support plate (2); a slider inserted into the slide groove (4) is connected to one side of the support seat (3); a plurality of fixing holes (7) are arranged side by side on both sides of the slide groove (4); fixing bolts (6) are screwed between the support seat (3) and the corresponding fixing holes (7); a support frame (5) is connected to one side of the support seat (3); a support rod (8) is connected to the inner side of the support frame (5) via a pin shaft; one end of the support rod (8) is connected to a mounting frame (10) via a pin shaft; a mounting seat (9) is installed at the bottom of the mounting frame (10); and the mounting seat (9) is installed on the top of the base plate (1).

2. The external anchor internal support type foundation pit support structure according to claim 1 is characterized in that: Two anchor piers (12) are cast side by side on the top of the base plate (1), and an anchor rod (13) is anchored in the middle of the anchor pier (12).

3. The external anchor internal support type foundation pit support structure according to claim 2 is characterized in that: The anchor piers (12) are cylindrical structures, and the two anchor piers (12) are located on both sides of the support plate (2).

4. The external anchor internal support type foundation pit support structure according to claim 1 is characterized in that: Two rows of anchor holes (14) are arranged side by side on the top of the bottom plate (1).

5. The external anchor internal support type foundation pit support structure according to claim 1 is characterized in that: Rotating shafts (15) are welded to the lower parts of the two symmetrical sides of the support plate (2), and the rotating shafts (15) are installed on the corresponding sides of the grooves through bearings.

6. The external anchor internal support type foundation pit support structure according to claim 1, characterized in that: The mounting seat (9) and the top of the bottom plate (1) are provided with corresponding mounting holes, and mounting bolts (11) are screwed between the corresponding mounting holes.

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