Anti-collapse device for foundation pit excavation

Abstract

The utility model discloses a foundation pit excavation anti-collapse device which comprises a first supporting side plate and a second supporting side plate, lower fixing anchor bolts are symmetrically arranged at the bottom of the first supporting side plate and the bottom of the second supporting side plate, and rubber sealing gaskets are arranged on the inner sides of the bottoms of the first supporting side plate and the second supporting side plate. Adjusting type supporting pieces are symmetrically arranged between the first supporting side plate and the second supporting side plate, and the two ends of the adjusting type supporting pieces are detachably connected with the connecting installation components on the first supporting side plate and the second supporting side plate correspondingly. The foundation pit extension device has the advantages that the foundation pit extension device is simple in structure and convenient to install and fix, can be matched with foundation pits of different sizes, can pull out and position the extension plate for foundation pits of different depths, is convenient to disassemble and install, and is convenient to use. And repeated utilization can be achieved, and materials are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, in particular to a foundation pit excavation anti-collapse device. Background Art

[0002] Foundation pit support is a measure of support, reinforcement and protection for the side walls of the foundation pit and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. For example, during the excavation of municipal pipeline trenches, affected by the surrounding responsible environment, some pipeline construction cannot be supported, and the slope cannot be cut according to the specifications. During vertical excavation, complex geology may easily cause foundation pit collapse, endangering the lives of construction workers. For this reason, a support structure is needed to prevent foundation pit collapse.

[0003] In actual application, general foundation pit support is achieved by welding. According to the size of the foundation pit, support components are manufactured on site, and supporting cross bars are welded between two support plates to support the side walls of the foundation pit to ensure that they will not collapse. The welding method can only cope with the current size of the foundation pit and cannot achieve the reuse of support components. In addition, the depth of the foundation pit is different. If the height of the support plate is insufficient, there will still be a risk of collapse.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a foundation pit excavation anti-collapse device.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a foundation pit excavation anti-collapse device, including a supporting side panel one and a supporting side panel two, the bottoms of the supporting side panel one and the supporting side panel two are symmetrically provided with lower fixed anchor bolts, the inner sides of the bottoms of the supporting side panel one and the supporting side panel two are provided with rubber sealing gaskets, and adjustable support members are symmetrically provided between the supporting side panel one and the supporting side panel two, and the two ends of the adjustable support members are respectively detachably connected to the connecting and mounting components on the supporting side panel one and the supporting side panel two, and extension plates are movably provided in the supporting side panel one and the supporting side panel two, and an adjusting and positioning structure is connected between the supporting side panel one, the supporting side panel two and the extension plates.

[0007] Preferably, the adjustable support member comprises a fixed sleeve, wherein an internal threaded area is symmetrically arranged in the fixed sleeve, and extended connecting columns are arranged at both ends of the fixed sleeve, and an external threaded area matching the internal threaded area is formed on the extended connecting column.

[0008] Preferably, one end of the extended connecting column away from the fixing sleeve is integrally connected with a connecting block, and a mounting through hole is provided on the connecting block.

[0009] Preferably, the connecting and mounting component comprises a mounting block, a mounting groove matching the connecting block is formed in the mounting block, a threaded positioning shaft is fixedly connected to the center of the mounting groove, and the threaded positioning shaft movably passes through the mounting through hole.

[0010] Preferably, a welding plate is symmetrically provided at one end of the mounting block, and the mounting block is welded to the corresponding supporting side plate one and the supporting side plate two through the welding plate. A limiting thread sleeve is provided on the top thread of the threaded positioning shaft, and a rotating handle is welded on the outer wall of the limiting thread sleeve.

[0011] Preferably, the adjustment and positioning structure includes a storage cavity arranged in the support side plate one and the support side plate two, the extension plate is movably arranged in the storage cavity, and a limiting threaded column is fixedly arranged on one side of the bottom of the extension plate located in the storage cavity, the inner sides of the support side plate one and the support side plate two are provided with a strip groove through which the limiting threaded column passes, and a limiting nut one is threadedly sleeved on the limiting threaded column, and an upper sealing plate is arranged on the top of the extension plate.

[0012] Preferably, the extension plates are provided with mounting holes, a side tapered plug-in screw is movably provided in the mounting hole, and a second limiting nut is provided on the end thread of the side tapered plug-in screw.

[0013] The utility model provides a foundation pit excavation anti-collapse device, which has the following beneficial effects:

[0014] By symmetrically arranging lower fixing anchor bolts at the bottom of the support side panel one and the support side panel two, it is convenient for them to be fixedly connected to the bottom of the foundation pit. An adjustable support piece can be detachably installed between the support side panel one and the support side panel two through a connecting and mounting component. When facing foundation pits of different sizes, the distance between the support side panel one and the support side panel two can be adjusted by the adjustable support piece before installation, and the adjustable support piece is detachably connected to the connecting and mounting component, thereby realizing the disassembly between the support side panel one, the support side panel two and the adjustable support piece, which is convenient for multiple uses. The adjustable positioning structure connected to the extension plate can be pulled out and positioned for foundation pits of different depths. The utility model has a simple structure and is easy to install and fix. It can be adapted to foundation pits of different sizes. For foundation pits of different depths, the extension plate can be pulled out and positioned, and it is convenient to disassemble and install, can be reused, and saves materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model 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 of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a front view of a foundation pit excavation anti-collapse device according to an embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of an adjustable support member in a foundation pit excavation anti-collapse device according to an embodiment of the utility model;

[0018] Figure 3 It is a cross-sectional view of a connecting and mounting component in a foundation pit excavation anti-collapse device according to an embodiment of the utility model;

[0019] Figure 4 It is a cross-sectional view of an adjusting and positioning structure in a foundation pit excavation anti-collapse device according to an embodiment of the utility model.

[0020] In the figure:

[0021] 1. Support side panel one; 2. Support side panel two; 3. Lower fixing anchor bolt; 4. Rubber sealing gasket; 5. Adjustable support member; 6. Connecting and mounting member; 7. Extension plate; 8. Sectional view; 9. Fixing sleeve; 10. Internal thread area; 11. Extended connecting column; 12. External thread area; 13. Connecting block; 14. Mounting through hole; 15. Mounting block; 16. Welding plate; 17. Mounting groove; 18. Threaded positioning shaft; 19. Limiting threaded sleeve; 20. Turning handle; 21. Limiting nut two; 22. Storage cavity; 23. Strip groove; 24. Limiting threaded column; 25. Limiting nut one; 26. Upper sealing plate; 27. Mounting hole; 28. Side tapered plug-in screw. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model provides a foundation pit excavation anti-collapse device, including a supporting side plate 1 and a supporting side plate 2, the bottoms of the supporting side plate 1 and the supporting side plate 2 are symmetrically provided with lower fixing anchor bolts 3, and the lower fixing anchor bolts 3 are symmetrically provided at the bottoms of the supporting side plate 1 and the supporting side plate 2, so as to facilitate their fixed connection with the bottom of the foundation pit, the inner sides of the bottoms of the supporting side plate 1 and the supporting side plate 2 are provided with rubber sealing gaskets 4, and adjustable support members 5 are symmetrically provided between the supporting side plate 1 and the supporting side plate 2, and the two ends of the adjustable support member 5 are detachably connected to the connecting and mounting components 6 on the supporting side plate 1 and the supporting side plate 2, respectively, and the supporting side plate 1 and the supporting side plate 2 are detachably connected to the connecting and mounting components 6 on the supporting side plate 1 and the supporting side plate 2. An adjustable support member 5 is detachably installed between the two support side panels 2 through a connecting installation component 6. When facing foundation pits of different sizes, the distance between the support side panel 1 and the support side panel 2 can be adjusted by the adjustable support member 5 before installation, and the adjustable support member 5 is detachably connected to the connecting installation component 6, thereby realizing the disassembly between the support side panel 1, the support side panel 2 and the adjustable support member 5, which is convenient for multiple uses. Extension plates 7 are movably arranged in the support side panel 1 and the support side panel 2, and an adjusting positioning structure 8 is connected between the support side panel 1, the support side panel 2 and the extension plate 7. The arranged adjusting positioning structure 8 is connected to the extension plate 7, and for foundation pits of different depths, the extension plate 7 can be pulled out and positioned.

[0024] In one embodiment, please refer to the attached manual. Figure 2 As shown, the adjustable support member 5 includes a fixed sleeve 9, and an internal threaded area 10 is symmetrically arranged in the fixed sleeve 9. Both ends of the fixed sleeve 9 are provided with an extended connecting column 11, and an external threaded area 12 matching the internal threaded area 10 is provided on the extended connecting column 11. The end of the extended connecting column 11 away from the fixed sleeve 9 is integrally connected with a connecting block 13, and a mounting through hole 14 is provided on the connecting block 13. When adjusting, the extended connecting column 11 is rotated, and the extended connecting column 11 is extended outward or contracted inward through the cooperation of the external threaded area 12 and the internal threaded area 10. After adjusting to a suitable length, it is connected to the connecting and mounting member 6 through the connecting block 13 and the mounting through hole 14.

[0025] In one embodiment, please refer to the attached manual. Figure 3As shown, the connection and installation component 6 includes a mounting block 15, in which a mounting groove 17 matching the connection block 13 is provided, a threaded positioning shaft 18 is fixedly connected at the center of the mounting groove 17, and the threaded positioning shaft 18 movably passes through the mounting through hole 14, and a welding plate 16 is symmetrically arranged at one end of the mounting block 15, and the mounting block 15 is welded to the corresponding support side plate 1 and the support side plate 2 through the welding plate 16, and the top thread of the threaded positioning shaft 18 is provided with a limited thread sleeve 19, and a rotating handle 20 is welded on the outer wall of the limited thread sleeve 19. By placing the connection block 13 at one end of the extended connection column 11 in the mounting groove 17, so that the threaded positioning shaft 18 passes through the mounting through hole 14 on the connection block 13, and finally positioning by using the limited thread sleeve 19, the installation and connection of the adjustable support member 5 can be realized, and the provided welding plate 16 facilitates the welding and fixing of the mounting block 15 with the support side plate 1 and the support side plate 2.

[0026] In one embodiment, please refer to the attached manual. Figure 4 As shown, the adjustment and positioning structure 8 includes a storage cavity 22 arranged in the supporting side plate 1 and the supporting side plate 2, the extension plate 7 is movably arranged in the storage cavity 22, and a limiting threaded column 24 is fixedly arranged on one side of the bottom of the extension plate 7 located in the storage cavity 22, the inner sides of the supporting side plate 1 and the supporting side plate 2 are both provided with a strip groove 23 through which the limiting threaded column 24 passes, and a limiting nut 1 25 is threadedly sleeved on the limiting threaded column 24, and an upper sealing plate 26 is arranged on the top of the extension plate 7. When facing a deeper foundation pit, loosen the limiting nut 1 25 on the limiting threaded column 24, pull the extension plate 7 arranged in the storage cavity 22 to a suitable height, tighten the limiting nut 1 25, and use friction to position the position of the extension plate 7, and retract the extension plate 7 into the storage cavity 22 when not in use.

[0027] In one embodiment, please refer to the attached manual. Figure 1 As shown, the extension plate 7 is provided with a mounting hole 27, and a side conical plug screw 28 is movably provided in the mounting hole 27, and a second limiting nut 21 is provided on the end of the side conical plug screw 28. By inserting the side conical plug screw 28 into the mounting hole 27 on the extension plate 7, inserting one end of the side conical plug screw 28 into the side wall of the foundation pit, and then using the second limiting nut 21 to position one end of the side conical plug screw 28, the stability of the extension plate 7 is ensured and the strength of its support is improved.

[0028] When the support frame 1 is in a state of being loosened and the support ribs 5 are loosened, the support frame 1 is provided with a plurality of support members 5, each of which is provided with a plurality of support members 5. When the support frame 1 is in a state of being loosened and the support ribs 5 are loosened, the support ribs 5 are provided with a plurality of support members 5. When the support frame 1 is in a state of being loosened and the support ribs 5 are loosened, the support ribs 5 are provided with a plurality of support members 5.

[0029] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A foundation pit excavation anti-collapse device, characterized in that: The invention comprises a supporting side plate 1 (1) and a supporting side plate 2 (2), wherein the bottoms of the supporting side plate 1 (1) and the supporting side plate 2 (2) are symmetrically provided with lower fixing anchor bolts (3), the inner sides of the bottoms of the supporting side plate 1 (1) and the supporting side plate 2 (2) are provided with rubber sealing gaskets (4), an adjustable support member (5) is symmetrically provided between the supporting side plate 1 (1) and the supporting side plate 2 (2), the two ends of the adjustable support member (5) are respectively detachably connected to the connecting and mounting components (6) on the supporting side plate 1 (1) and the supporting side plate 2 (2), an extension plate (7) is movably provided inside the supporting side plate 1 (1) and the supporting side plate 2 (2), and an adjustable positioning structure (8) is connected between the supporting side plate 1 (1), the supporting side plate 2 (2) and the extension plate (7).

2. The foundation pit excavation anti-collapse device according to claim 1, characterized in that: The adjustable support member (5) comprises a fixed sleeve (9), wherein an internal threaded area (10) is symmetrically arranged inside the fixed sleeve (9), and an extended connecting column (11) is arranged at both ends of the fixed sleeve (9), and an external threaded area (12) matching the internal threaded area (10) is formed on the extended connecting column (11).

3. The foundation pit excavation anti-collapse device according to claim 2, characterized in that: One end of the extended connecting column (11) away from the fixed sleeve (9) is integrally connected to a connecting block (13), and a mounting through hole (14) is provided on the connecting block (13).

4. The foundation pit excavation anti-collapse device according to claim 3, characterized in that: The connecting and mounting component (6) comprises a mounting block (15), wherein a mounting groove (17) matching the connecting block (13) is provided in the mounting block (15), a threaded positioning shaft (18) is fixedly connected at the center of the mounting groove (17), and the threaded positioning shaft (18) movably passes through the mounting through hole (14).

5. The foundation pit excavation anti-collapse device according to claim 4, characterized in that: A welding plate (16) is symmetrically arranged at one end of the mounting block (15), and the mounting block (15) is welded to the corresponding supporting side plate 1 (1) and the supporting side plate 2 (2) via the welding plate (16). A limiting thread sleeve (19) is arranged on the top thread of the threaded positioning shaft (18), and a rotating handle (20) is welded on the outer wall of the limiting thread sleeve (19).

6. The foundation pit excavation anti-collapse device according to claim 5, characterized in that: The adjustment and positioning structure (8) comprises a storage cavity (22) arranged in the supporting side plate 1 (1) and the supporting side plate 2 (2); the extension plate (7) is movably arranged in the storage cavity (22); and a limiting threaded column (24) is fixedly arranged on one side of the bottom of the extension plate (7) located in the storage cavity (22); the inner sides of the supporting side plate 1 (1) and the supporting side plate 2 (2) are both provided with a strip groove (23) through which the limiting threaded column (24) passes; and a limiting nut 1 (25) is threadedly sleeved on the limiting threaded column (24); and an upper sealing plate (26) is arranged on the top of the extension plate (7).

7. The foundation pit excavation anti-collapse device according to claim 6, characterized in that: The extension plates (7) are each provided with a mounting hole (27), a side tapered plug-in screw (28) being movably provided in the mounting hole (27), and a second limit nut (21) being provided on the end thread of the side tapered plug-in screw (28).

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