Deep foundation pit support structure for building construction

Abstract

The utility model discloses a deep foundation pit support structure for building construction, and relates to the field of foundation pit support. The structure includes a base and a support plate, wherein two groups of first convex plates are arranged at one end of the top surface of the base; the bottom end of the support plate is connected to the other end of the top surface of the base, and two groups of second convex plates are arranged on the side of the support plate close to the base, and each group of the first convex plates and the second convex plates are connected by a first support rod; the first support rod includes two first sleeve rods and a first threaded rod, and the adjacent ends of the two first sleeve rods are inwardly recessed to form a first threaded hole, and the two ends of the first threaded rod are respectively threadedly connected to the two first threaded holes, and the distant ends of the two first sleeve rods are both provided with a first connecting end. The utility model reduces the construction difficulty, has a simple construction process, and is convenient to install and dismantle.

Description

Technical Field

[0001] The utility model relates to the field of foundation pit support, in particular to a deep foundation pit support structure for building construction. Background Art

[0002] With the continuous development of urbanization, the density of urban buildings is increasing. In order to ensure the safety and normal operation of nearby buildings, underground pipelines, and urban traffic, deep foundation pit support construction is generally required during construction in densely built areas. Deep foundation pit is a temporary structure set up during the construction process. It is an underground space excavated from the ground, and vertical retaining structures are generally set up around it.

[0003] At present, the construction of deep foundation pit protection structure usually involves welding and fixing multiple support plates to the foundation pit slope, or directly pouring concrete walls around the deep foundation pit for support. The connection strength between the former and the foundation pit slope is mostly achieved through fixing bolts, so the protection effect can be limited, and the fixing method between adjacent support plates is mostly welding, and the slope height of the deep foundation pit is relatively high, which makes the construction of the deep foundation pit protection structure extremely inconvenient. Although the latter can be quickly built by constructing a simple frame and directly pouring, the built concrete wall needs to be demolished after the construction is completed, which not only increases the construction content, but also generates a lot of construction waste.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the existing support structures are troublesome to install and remove, and the construction is troublesome, and there is a defect that the construction is difficult.

[0005] Therefore, those skilled in the art provide a deep foundation pit support structure for building construction to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0006] The utility model provides a deep foundation pit supporting structure for building construction, which reduces construction difficulty, has a simple construction process, and is convenient to install and dismantle.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The utility model of the deep foundation pit supporting structure for building construction comprises:

[0009] A base, wherein one end of the top surface of the base is provided with two groups of first convex plates;

[0010] A supporting plate, wherein the bottom end of the supporting plate is connected to the other end of the top surface of the base, and two groups of second convex plates are arranged on the side of the supporting plate close to the base, and each group of the first convex plates and the second convex plates are connected by a first support rod;

[0011] The first support rod includes two first sleeve rods and a first threaded rod, the ends of the two first sleeve rods that are close to each other are recessed inward to form a first threaded hole, the two ends of the first threaded rod are respectively threadedly connected to the two first threaded holes, and the ends of the two first sleeve rods that are far away from each other both have a first connecting end, the two first connecting ends are respectively located between the two first convex plates and the two second convex plates, and are respectively connected between the two first convex plates and the two second convex plates through a first rotating shaft.

[0012] Furthermore, a first driving block is provided in the middle of the first threaded rod, and the first driving block is located between the two first sleeve rods.

[0013] Furthermore, the top end of the support plate is recessed inward to form a first groove, the first groove has a lifting top plate, two third convex plates are arranged in the middle of the lifting top plate, two fourth convex plates are arranged on the top surface of the base and located between the two groups of first convex plates, and a second support rod is connected between the third convex plate and the fourth convex plate.

[0014] Furthermore, the second support rod includes two second sleeve rods and a second threaded rod, the adjacent ends of the two second sleeve rods are recessed inward to form second threaded holes, the two ends of the second threaded rod are respectively threadedly connected to the two second threaded holes, and the distant ends of the two second sleeve rods have second connecting ends, the two second connecting ends are respectively located between the two third convex plates and the two fourth convex plates, and are respectively connected between the two third convex plates and the two fourth convex plates through second rotating shafts.

[0015] Furthermore, a second driving block is provided in the middle of the second threaded rod, and the second driving block is located between the two second sleeve rods.

[0016] Furthermore, the lifting top plate has two symmetrical racks on the side close to the second set of rods, and the two racks are located on both sides of the second set of rods. The support plate is provided with a second groove on the side close to the first set of rods, and the two second grooves are located between the two first sets of rods, and the top ends of the two second grooves extend to the top end of the support plate, and the two racks are respectively located in the corresponding second grooves.

[0017] Furthermore, two driving motors are arranged on the supporting plate, and the output ends of the driving motors are both provided with driving gears, and the driving gears are meshed and connected with corresponding racks.

[0018] Furthermore, two positioning holes are provided on the top surface of the base and below the supporting plate, and two positioning protrusions are provided on the bottom surface of the supporting plate, and the positioning protrusions can be inserted into the corresponding positioning holes.

[0019] Furthermore, a baffle is provided on the top surface of the base and close to the supporting plate.

[0020] Furthermore, a plurality of through holes are formed on the top surface of the base.

[0021] In the above technical scheme, the deep foundation pit support structure for building construction provided by the utility model has the following beneficial effects:

[0022] 1. The supporting plate is butted against the side wall of the deep foundation pit to support it, and at the same time, the supporting plate is supported by the first threaded rod to ensure the supporting strength of the supporting plate; the entire supporting process can be completed through the base, the supporting plate and the first supporting rod, thereby achieving the effect of reducing the difficulty of construction.

[0023] 2. The distance between the two first sets of rods can be increased by rotating the first driving block to adapt to the angle between the base and the supporting plate.

[0024] 3. Increase the support area by adjusting the height of the lifting top plate extending out of the first groove.

[0025] 4. The third convex plate is arranged near the top of the lifting top plate, and when the lifting top plate descends to the lowest point, the third convex plate is located above the supporting plate. When the lifting top plate rises to the highest point, it is the maximum length of the connection between the second threaded rod and the third sleeve rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 A front view of a deep foundation pit support structure for building construction provided by an embodiment of the utility model;

[0028] Figure 2 for Figure 1 Side view of

[0029] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0030] Figure 4 for Figure 1 A top view of the middle base;

[0031] Figure 5 for Figure 1 Side view of the center support plate.

[0032] Description of reference numerals:

[0033] 10. base; 11. first convex plate; 12. fourth convex plate; 13. positioning hole; 14. baffle plate; 15. through hole;

[0034] 20. Support plate; 21. Second convex plate; 22. First rotating shaft; 23. First groove; 24. Second groove; 25. Driving motor; 26. Driving gear; 27. Positioning protrusion;

[0035] 30. first support rod; 31. first sleeve rod; 32. first threaded rod; 33. first connecting end; 34. first driving block;

[0036] 40. lifting top plate; 41. third convex plate; 42. second rotating shaft;

[0037] 50. Second support rod; 51. Second sleeve rod; 52. Second threaded rod; 53. Second connecting end; 54. Second driving block; 55. Rack. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0039] See also Figure 1-5 As shown;

[0040] The deep foundation pit support structure for building construction described in the embodiment of the utility model comprises:

[0041] A base 10, wherein two groups of first convex plates 11 are provided at one end of the top surface of the base 10;

[0042] A supporting plate 20, wherein the bottom end of the supporting plate 20 is connected to the other end of the top surface of the base 10, and two groups of second convex plates 21 are arranged on the side of the supporting plate 20 close to the base 10, and each group of the first convex plates 11 and the second convex plates 21 are connected by a first support rod 30;

[0043] The first support rod 30 includes two first sleeve rods 31 and a first threaded rod 32. The adjacent ends of the two first sleeve rods 31 are recessed inward to form a first threaded hole. The two ends of the first threaded rod 32 are respectively threadedly connected to the two first threaded holes. The distant ends of the two first sleeve rods 31 have a first connecting end 33. The two first connecting ends 33 are respectively located between the two first convex plates 11 and the two second convex plates 21, and are respectively connected between the two first convex plates 11 and the two second convex plates 21 through the first rotating shaft 22.

[0044] During specific work, the support plate 20 is abutted against the side wall of the deep foundation pit to support it, and at the same time, the support plate 20 is supported by the first threaded rod 30 to ensure the support strength of the support plate 20; the entire support process can be completed through the base 10, the support plate 20 and the first support rod 30, thereby achieving the effect of reducing the difficulty of construction.

[0045] The first threaded rod 32 has a first driving block 34 in the middle thereof, and the first driving block 34 is located between the two first sleeve rods 31. By rotating the first driving block 34, the distance between the two first sleeve rods 31 can be increased to adapt to the angle between the base 10 and the supporting plate 20.

[0046] The top of the support plate 20 is recessed inward to form a first groove 23, the first groove 23 has a lifting top plate 40, two third convex plates 41 are arranged in the middle of the lifting top plate 40, two fourth convex plates 12 are arranged on the top surface of the base 10 and located between the two groups of first convex plates 11, and a second support rod 50 is connected between the third convex plate 41 and the fourth convex plate 12. The height of the lifting top plate 40 extending out of the first groove 23 can be adjusted to increase the support area.

[0047] The second support rod 50 includes two second sleeve rods 51 and a second threaded rod 52, the adjacent ends of the two second sleeve rods 51 are inwardly recessed to form second threaded holes, the two ends of the second threaded rod 52 are respectively threadedly connected to the two second threaded holes, and the ends of the two second sleeve rods 51 that are far away from each other have second connecting ends 53, the two second connecting ends 53 are respectively located between the two third convex plates 41 and the two fourth convex plates 12, and are respectively connected between the two third convex plates 41 and the two fourth convex plates 12 through the second rotating shaft 42. The second support rod 50 can enhance the support strength of the lifting top plate 40.

[0048] The middle part of the second threaded rod 52 has a second driving block 54, and the second driving block 54 is located between the two second sleeve rods 51. The distance between the two second sleeve rods 51 can be increased by rotating the second driving block 54 to adapt to the angle between the base 10 and the lifting top plate 40. The third convex plate 41 is arranged near the top of the lifting top plate 40, and when the lifting top plate 40 descends to the lowest point, the third convex plate 41 is located above the supporting plate 20. When the lifting top plate 40 rises to the highest point, it is the maximum length of the connection between the second threaded rod 52 and the third sleeve rod 51.

[0049] The lifting top plate 40 has two symmetrical racks 55 on the side close to the second set of rods 51, and the two racks 55 are located on both sides of the second set of rods 51. The support plate 20 has a second groove 24 on the side close to the first set of rods 31. The two second grooves 24 are located between the two first sets of rods 31, and the top ends of the two second grooves 24 extend to the top end of the support plate 20. The two racks 55 are respectively located in the corresponding second grooves 24.

[0050] The driving rack 55 moves back and forth in the second groove 24 , thereby driving the lifting top plate 40 to extend out of or retract into the first groove 23 .

[0051] The support plate 20 is provided with two driving motors 25 , and the output ends of the driving motors 25 are both provided with driving gears 26 , and the driving gears 26 are meshedly connected with the corresponding racks 55 .

[0052] The two driving motors 25 work synchronously, and drive the rack 55 to move reciprocatingly downward through the corresponding driving gear 26 .

[0053] Two positioning holes 13 are provided on the top surface of the base 10 and below the support plate 20, and two positioning protrusions 27 are provided on the bottom surface of the support plate 20, and the positioning protrusions 27 can be inserted into the corresponding positioning holes 13. The base 10 and the support plate 20 are connected by inserting the positioning protrusions 27 into the corresponding positioning holes 13, and then the side wall of the deep foundation pit is supported by the first support rod 30 and the second support rod 50.

[0054] A baffle 14 is disposed on the top surface of the base 10 and near the support plate 20. When the positioning protrusion 27 is inserted into the corresponding positioning hole 13, the support plate 20 abuts against the baffle 14 to limit the support plate 20 and prevent the support plate 20 from displacement.

[0055] A plurality of through holes 15 are provided on the top surface of the base 10 , and anchor rods are inserted into the through holes 15 on the base 10 to fix the base 10 , so as to prevent the base 10 from moving during the support process and affecting the support effect.

[0056] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. The deep foundation pit support structure for building construction is characterized by: include: A base (10), wherein two groups of first convex plates (11) are provided at one end of the top surface of the base (10); A support plate (20), wherein the bottom end of the support plate (20) is connected to the other end of the top surface of the base (10), two groups of second convex plates (21) are arranged on the side of the support plate (20) close to the base (10), and each group of the first convex plates (11) and the second convex plates (21) are connected via a first support rod (30); The first support rod (30) comprises two first sleeve rods (31) and a first threaded rod (32); the adjacent ends of the two first sleeve rods (31) are recessed inwardly to form a first threaded hole; the two ends of the first threaded rod (32) are respectively threadedly connected to the two first threaded holes; the distant ends of the two first sleeve rods (31) are each provided with a first connecting end (33); the two first connecting ends (33) are respectively located between the two first convex plates (11) and the two second convex plates (21), and are respectively connected between the two first convex plates (11) and the two second convex plates (21) via a first rotating shaft 22.

2. The deep foundation pit support structure for building construction according to claim 1 is characterized in that: A first driving block (34) is provided in the middle of the first threaded rod (32), and the first driving block (34) is located between the two first sleeve rods (31).

3. The deep foundation pit support structure for building construction according to claim 1 is characterized in that: The top end of the support plate (20) is recessed inward to form a first groove (23), the first groove (23) has a lifting top plate (40), two third convex plates (41) are arranged in the middle of the lifting top plate (40), two fourth convex plates (12) are arranged on the top surface of the base (10) and located between the two groups of first convex plates (11), and a second support rod (50) is connected between the third convex plate (41) and the fourth convex plate (12).

4. The deep foundation pit support structure for building construction according to claim 3 is characterized in that: The second support rod (50) comprises two second sleeve rods (51) and a second threaded rod (52); the adjacent ends of the two second sleeve rods (51) are recessed inwardly to form a second threaded hole; the two ends of the second threaded rod (52) are respectively threadedly connected to the two second threaded holes; the distant ends of the two second sleeve rods (51) are each provided with a second connecting end (53); the two second connecting ends (53) are respectively located between the two third convex plates (41) and the two fourth convex plates (12), and are respectively connected between the two third convex plates (41) and the two fourth convex plates (12) via a second rotating shaft (42).

5. The deep foundation pit support structure for building construction according to claim 4 is characterized in that: A second driving block (54) is provided in the middle of the second threaded rod (52), and the second driving block (54) is located between the two second sleeve rods (51).

6. The deep foundation pit support structure for building construction according to claim 3 is characterized in that: The lifting top plate (40) has two symmetrical racks (55) on the side close to the second rod (51), and the two racks (55) are located on both sides of the second rod (51). The supporting plate (20) has a second groove (24) on the side close to the first rod (31), and the two second grooves (24) are located between the two first rods (31), and the top ends of the two second grooves (24) extend to the top end of the supporting plate (20), and the two racks (55) are respectively located in the corresponding second grooves (24).

7. The deep foundation pit support structure for building construction according to claim 6 is characterized in that: Two drive motors (25) are arranged on the support plate (20), and output ends of the drive motors (25) are each provided with a driving gear (26), and the driving gear (26) is meshingly connected with a corresponding rack (55).

8. The deep foundation pit support structure for building construction according to claim 1 is characterized in that: Two positioning holes (13) are provided on the top surface of the base (10) and below the support plate (20), and two positioning protrusions (27) are provided on the bottom surface of the support plate (20), and the positioning protrusions (27) can be inserted into corresponding positioning holes (13).

9. The deep foundation pit support structure for building construction according to claim 1 is characterized in that: A baffle (14) is provided on the top surface of the base (10) and at a position close to the supporting plate (20).

10. The deep foundation pit support structure for building construction according to claim 1, characterized in that: A plurality of through holes (15) are provided on the top surface of the base (10).

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