CN219908973U - Pit wall supporting device for foundation pit excavation - Google Patents
Pit wall supporting device for foundation pit excavation Download PDFInfo
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- CN219908973U CN219908973U CN202321475438.6U CN202321475438U CN219908973U CN 219908973 U CN219908973 U CN 219908973U CN 202321475438 U CN202321475438 U CN 202321475438U CN 219908973 U CN219908973 U CN 219908973U
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- supporting
- adjusting
- adjusting part
- pit
- telescopic arm
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 16
- 239000002689 soil Substances 0.000 description 11
- 238000010276 construction Methods 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Abstract
The utility model discloses a pit wall supporting device for foundation pit excavation, which relates to the technical field of foundation pit supporting, and is characterized in that a plurality of adjustable supporting arms are arranged on the periphery of a supporting seat, the adjustable supporting arms can slide along the periphery of the supporting seat at will, so that local supporting is realized conveniently according to actual supporting angles, when the device is used, only a fixed seat is fixed at the bottom of the foundation pit for supporting, the operation is more convenient, in addition, the adjustable supporting arms can realize flexible adjustment of the length and the angle, the adaptability is stronger, the adjustable supporting arms can slide along the periphery of the supporting seat at will according to actual supporting requirements, the supporting height and the supporting angle can be adjusted by matching with a telescopic arm, a first adjusting part and a second adjusting part, and the length of the telescopic arm, the angle of the first adjusting part and the angle of the second adjusting part are fixed by adopting a positioning knob, a fixing bolt I and a fixing bolt II, so that a supporting block is attached to the local pit wall to be supported, and local supporting is realized.
Description
Technical Field
The utility model relates to the technical field of foundation pit support, in particular to a pit wall support device for foundation pit excavation.
Background
The foundation pit support is used for ensuring the safety of underground structure construction and the surrounding environment of the foundation pit, and is used for supporting, reinforcing and protecting the side wall of the foundation pit and the surrounding environment. The common foundation pit supporting modes comprise various forms such as row pile supporting, underground continuous wall supporting, piles or wall adding supporting systems, reinforced concrete row piles and the like, and can be selected after comprehensive evaluation of working conditions such as depth, soil property and the like of the foundation pit, or various supporting modes are reasonably combined.
In the weak soil foundation pit, because weak soil rheological property is strong, deformation easily takes place when general supporting construction receives the weak soil extrusion of tendency, thereby it is easy to take place the deformation damage to lead to whole foundation pit supporting construction, based on weak soil foundation pit excavation, patent application number 202111437575.6 has proposed a weak soil deep foundation pit combination supporting construction and construction method, including the double row pile body, the double row pile body is including preceding row pile and the back row pile of mutual parallel arrangement, preceding row pile is along foundation pit periphery setting, the back row pile is located the one side of preceding row pile dorsad foundation pit, be connected with the pile bolck between the pile bolck of preceding row pile and back row pile, soft soil fills between preceding row pile and back row pile, be equipped with the waterproof curtain stake of mutual interlock between the pile body of adjacent preceding row pile, be equipped with a plurality of support casees in the foundation pit, support case is fixed in the weak soil of foundation pit bottom, be equipped with the diagonal strut between support case and the preceding row pile, support case and diagonal strut one-to-one setting have the effect that improves the stability of foundation pit supporting construction.
Similar to the above-mentioned weak soil deep basal pit combination supporting structure when supporting foundation ditch local weak soil, need fixed a plurality of supporting cases in the foundation ditch bottom, it is comparatively troublesome to operate, leads to the efficiency of construction low, therefore proposes a pit wall strutting arrangement for foundation ditch excavation in order to improve above-mentioned problem.
Disclosure of Invention
The utility model aims to provide a pit wall supporting device for foundation pit excavation, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: pit wall supporting device for foundation pit excavation comprises a supporting seat:
the support seat is cylindrical, a fixed seat is coaxially arranged at the bottom end of the support seat, and a plurality of adjustable support arms are arranged on the periphery of the support seat;
the adjustable support arm and the support seat are slidably arranged, and the support seat is provided with a positioning structure for fixing the adjustable support arm;
the adjustable support arm comprises an angle adjusting part and a telescopic arm, and the angle adjusting part is connected with the telescopic arm.
Preferably, the adjustable supporting arm further comprises a limiting slide block connected with the angle adjusting part, an annular limiting slide groove for the sliding of the limiting slide block is arranged on the periphery of the supporting seat, and the positioning structure is arranged between the supporting seat and the limiting slide block.
Preferably, the positioning structure comprises a plurality of positioning bolts and a plurality of positioning screw holes uniformly formed in the periphery of the top end of the support seat, the limiting slide block is also provided with positioning screw holes, and the support seat and the limiting slide block are relatively fixed by the positioning bolts through the positioning screw holes.
Preferably, the angle adjusting part comprises a first adjusting part and a second adjusting part, the telescopic arm is arranged between the first adjusting part and the second adjusting part, and the first adjusting part is connected with the limiting slide block.
Preferably, the first adjusting part comprises an adjusting disc I and a fixing bolt I, the adjusting disc I is fixed with the limiting sliding block, one end of the telescopic arm is rotatably arranged at the center of the adjusting disc I, a plurality of adjusting holes I are uniformly formed in the periphery of the adjusting disc I, the telescopic arm is also provided with the adjusting holes I, and the fixing bolt I is used for fixing the adjusting disc I and the telescopic arm relatively through the adjusting holes I.
Preferably, the second adjusting part comprises a second adjusting disc and a second fixing bolt, the other end of the telescopic arm is fixed with the second adjusting disc, a supporting block is rotatably arranged at the center of the second adjusting disc, a plurality of second adjusting holes are uniformly formed in the periphery of the second adjusting disc, the second adjusting holes are also formed in the supporting block, and the second fixing bolt is used for fixing the second adjusting disc and the supporting block relatively through the second adjusting holes.
Preferably, a positioning knob for fixing the length of the telescopic arm is arranged on the telescopic arm.
In summary, the utility model has the technical effects and advantages that:
1. according to the utility model, the plurality of adjustable supporting arms are arranged on the periphery of one supporting seat, and can slide along the periphery of the supporting seat at will, so that the adjustment is convenient according to the actual supporting angle, and the local supporting is realized.
2. According to the utility model, the adjustable support arm can slide along the peripheral side of the support seat at will according to actual support needs, the support height and the support angle are adjusted by matching with the telescopic arm, the first adjusting part and the second adjusting part, and the length of the telescopic arm, the angle of the first adjusting part and the angle of the second adjusting part are respectively fixed by adopting the positioning knob, the first fixing bolt and the second fixing bolt, so that the support block is attached to the local pit wall to be supported, and the local support is realized.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of the adjustable support arm according to the present embodiment;
fig. 2 is a schematic perspective view of the present embodiment in a state of accommodating the adjustable support arm;
fig. 3 is a schematic perspective view of an adjustable support arm in this embodiment.
In the figure: 1. a support seat; 11. an annular limiting chute; 12. positioning screw holes; 13. positioning bolts; 2. a fixing seat; 3. an adjustable support arm; 31. a limit sliding block; 32. an adjusting disk I; 33. an adjusting hole I; 34. a first fixing bolt; 35. a telescoping arm; 36. a positioning knob; 37. an adjusting disk II; 38. an adjusting hole II; 39. a second fixing bolt; 310. and supporting the block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples: referring to a pit wall supporting device for foundation pit excavation shown in fig. 1-3, including supporting seat 1, supporting seat 1 is cylindrical, fixing base 2 is installed to the bottom coaxial installation of supporting seat 1, a plurality of adjustable supporting arms 3 are installed to the week side of supporting seat 1, slidable mounting between adjustable supporting arms 3 and supporting seat 1, and be provided with the location structure of fixed adjustable supporting arms 3 on the supporting seat 1, through setting up a plurality of adjustable supporting arms 3 at the week side of a supporting seat 1, and a plurality of adjustable supporting arms 3 can slide wantonly along the week side of supporting seat 1, conveniently adjust according to actual supporting angle, thereby conveniently carry out local support to the pit wall of weak soil foundation pit, during the use, only need support at foundation pit bottom fixed fixing base 2 can, the operation is more convenient.
The adjustable support arm 3 comprises an angle adjusting part and a telescopic arm 35, the angle adjusting part is connected with the telescopic arm 35, a positioning knob 36 used for fixing the length of the telescopic arm 35 is arranged on the telescopic arm 35, and the adjustable support arm 3 can flexibly adjust the length and the angle and has stronger adaptability.
Specifically, the adjustable support arm 3 further comprises a limit sliding block 31 connected with the angle adjusting part, an annular limit sliding groove 11 for sliding the limit sliding block 31 is formed in the peripheral side of the support seat 1, a positioning structure is mounted between the support seat 1 and the limit sliding block 31 and comprises a plurality of positioning bolts 13 and a plurality of positioning screw holes 12 uniformly formed in the peripheral side of the top end of the support seat 1, and the limit sliding block 31 is also provided with a positioning screw hole 12, wherein the support seat 1 and the limit sliding block 31 are relatively fixed by the positioning bolts 13 through the positioning screw holes 12.
The adjustable supporting arms 3 can slide along the circumference of the supporting seat 1 at will, so that the local supporting is realized by conveniently adjusting according to the actual supporting angle.
The angle adjusting part comprises a first adjusting part and a second adjusting part, the telescopic arm 35 is arranged between the first adjusting part and the second adjusting part, and the first adjusting part is connected with the limit sliding block 31; the first adjusting part comprises an adjusting disc I32 and a fixing bolt I34, the adjusting disc I32 is fixed with the limit sliding block 31, one end of a telescopic arm 35 is rotatably arranged at the center of the adjusting disc I32, a plurality of adjusting holes I33 are uniformly formed in the periphery of the adjusting disc I32, the telescopic arm 35 is also provided with the adjusting holes I33, and the fixing bolt I34 relatively fixes the adjusting disc I32 and the telescopic arm 35 through the adjusting holes I33.
Similarly, the second adjusting part comprises a second adjusting disc 37 and a second fixing bolt 39, the other end of the telescopic arm 35 is fixed with the second adjusting disc 37, a supporting block 310 is rotatably arranged at the center of the second adjusting disc 37, a plurality of second adjusting holes 38 are uniformly formed in the periphery of the second adjusting disc 37, the second adjusting holes 38 are also formed in the supporting block 310, and the second fixing bolt 39 relatively fixes the second adjusting disc 37 and the supporting block 310 through the second adjusting holes 38.
According to actual support needs, the support height and the support angle are adjusted by matching the first adjusting part and the second adjusting part, so that the support is more flexible to use.
The working principle of the utility model is as follows: the fixed slot is excavated in the center of the bottom of the foundation pit, the fixed seat 2 is arranged in the fixed slot for fixing, then the adjustable supporting arm 3 is arbitrarily slid along the periphery of the supporting seat 1 according to actual supporting requirements, the supporting height and the supporting angle are adjusted by matching the telescopic arm 35, the first adjusting part and the second adjusting part, the length of the telescopic arm 35, the angle of the first adjusting part and the angle of the second adjusting part are respectively fixed by adopting the positioning knob 36, the first fixing bolt 34 and the second fixing bolt 39, and the supporting block 310 is attached to the local pit wall to be supported, so that local supporting is realized.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. Pit wall supporting device for foundation pit excavation comprises a supporting seat (1), and is characterized in that:
the support seat (1) is cylindrical, a fixed seat (2) is coaxially arranged at the bottom end of the support seat (1), and a plurality of adjustable support arms (3) are arranged on the periphery of the support seat (1);
the adjustable support arm (3) and the support seat (1) are slidably arranged, and the support seat (1) is provided with a positioning structure for fixing the adjustable support arm (3);
the adjustable support arm (3) comprises an angle adjusting part and a telescopic arm (35), and the angle adjusting part is connected with the telescopic arm (35).
2. The pit wall supporting device for pit excavation according to claim 1, wherein: the adjustable support arm (3) further comprises a limiting slide block (31) connected with the angle adjusting part, an annular limiting slide groove (11) for the sliding of the limiting slide block (31) is arranged on the periphery of the support base (1), and the positioning structure is arranged between the support base (1) and the limiting slide block (31).
3. The pit wall supporting device for pit excavation according to claim 2, wherein: the positioning structure comprises a plurality of positioning bolts (13) and a plurality of positioning screw holes (12) which are uniformly formed in the periphery of the top end of the support seat (1), the positioning screw holes (12) are also formed in the limiting sliding block (31), and the support seat (1) and the limiting sliding block (31) are relatively fixed by the positioning bolts (13) through the positioning screw holes (12).
4. The pit wall supporting device for pit excavation according to claim 2, wherein: the angle adjusting part comprises a first adjusting part and a second adjusting part, the telescopic arm (35) is arranged between the first adjusting part and the second adjusting part, and the first adjusting part is connected with the limiting slide block (31).
5. The pit wall supporting device for pit excavation according to claim 4, wherein: the first adjusting part comprises an adjusting disc I (32) and a fixing bolt I (34), the adjusting disc I (32) is fixed with the limiting sliding block (31), one end of a telescopic arm (35) is rotatably arranged at the center of the adjusting disc I (32), a plurality of adjusting holes I (33) are uniformly formed in the periphery of the adjusting disc I (32), adjusting holes I (33) are formed in the telescopic arm (35) in the same way, and the fixing bolt I (34) is used for fixing the adjusting disc I (32) and the telescopic arm (35) relatively through the adjusting holes I (33).
6. The pit wall supporting device for pit excavation according to claim 4, wherein: the second adjusting part comprises a second adjusting disc (37) and a second fixing bolt (39), the other end of the telescopic arm (35) is fixed with the second adjusting disc (37), a supporting block (310) is rotatably arranged at the center of the second adjusting disc (37), a plurality of second adjusting holes (38) are uniformly formed in the periphery of the second adjusting disc (37), second adjusting holes (38) are formed in the supporting block (310) in the same manner, and the second fixing bolt (39) is used for fixing the second adjusting disc (37) and the supporting block (310) relatively.
7. The pit wall supporting device for pit excavation according to claim 1, wherein: the telescopic arm (35) is provided with a positioning knob (36) for fixing the length of the telescopic arm (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321475438.6U CN219908973U (en) | 2023-06-12 | 2023-06-12 | Pit wall supporting device for foundation pit excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321475438.6U CN219908973U (en) | 2023-06-12 | 2023-06-12 | Pit wall supporting device for foundation pit excavation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219908973U true CN219908973U (en) | 2023-10-27 |
Family
ID=88428674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321475438.6U Active CN219908973U (en) | 2023-06-12 | 2023-06-12 | Pit wall supporting device for foundation pit excavation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219908973U (en) |
-
2023
- 2023-06-12 CN CN202321475438.6U patent/CN219908973U/en active Active
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