A quick-release inner support device for foundation pit support

Abstract

A kind of fast disassembly inner support device for foundation pit support belongs to the technical field of foundation pit support, including support main beam, the both ends of support main beam are connected with hanging seat by telescopic assembly and main beam adjusting assembly respectively, the hanging seat can be detachably hung on enclosure, the telescopic assembly is iron pie type hydraulic jack, the output shaft of hydraulic jack is connected with the end of support main beam, the main beam adjusting assembly includes connecting column and bidirectional flange plate, the connecting column is fixedly connected to the center of the outer wall of hanging seat, and the connecting column is connected with the end of support main beam through bidirectional flange plate.The inner support device of the utility model can be quickly disassembled, so as to improve construction efficiency;At the same time, the device can be reused, has strong adaptability, can meet different use requirements;In addition, the device is stable and reliable, can effectively improve the safety during device use.

Description

Technical Field

[0001] This utility model belongs to the field of foundation pit support technology, and relates to a quick-release internal support device for foundation pit Larssen sheet pile support or steel structure support, and in particular to a quick-release internal support device for foundation pit support. Background Technology

[0002] Excavation pit support is an important structural component to ensure the safety of construction within the excavation pit and the surrounding environment. It is a measure to support, reinforce, and protect the sidewalls of the excavation pit and its surrounding environment, and Larssen sheet piles are commonly used for the support of deep excavations.

[0003] Currently, the internal support of deep foundation pit steel sheet piles is generally a fixed structure, which is difficult to meet the needs of long-distance rapid excavation and backfilling cyclic construction. Traditional steel sheet pile internal supports are generally formed by welding steel sections and steel sheet piles together. After the foundation pit is backfilled and cut off, they can be reused. Due to process defects, they are usually difficult to reuse in their original state after two or three times. At the same time, the construction cycle is long, the material waste is large, it is uneconomical, and it does not meet the needs of green construction and sustainable development in today's society.

[0004] Therefore, during long-distance rapid excavation and backfilling cyclic construction, there is an urgent need for an internal support device for foundation pit support structures that can be quickly assembled and disassembled, reused, highly adaptable, and stable and reliable. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a quick-release internal support device for foundation pit support, which solves the technical problems of large waste of steel sheet pile support materials in foundation pits, weak adaptability, and inability to meet the needs of green and sustainable development in the prior art.

[0006] To achieve the above and other related objectives, this utility model provides a quick-release internal support device for foundation pit support, including a support main beam. Both ends of the support main beam are connected to hangers through a telescopic component and a main beam adjustment component, respectively. The hangers can be detachably hung on the enclosure.

[0007] Preferably, in any of the above schemes, the supporting main beam is a hollow steel pipe with closed ends.

[0008] In any of the above embodiments, it is preferred that the telescopic component is a hydraulic jack, and the output shaft of the hydraulic jack is connected to the end of the supporting main beam.

[0009] Preferably, in any of the above solutions, the telescopic component is a disc-type hydraulic jack.

[0010] In the preferred embodiment of any of the above schemes, the hanging seat includes a first baffle, with a second baffle perpendicularly connected to both ends of the first baffle, and a third baffle connected to the ends of the two second baffles. The third baffle is parallel to the first baffle and forms a groove between the third baffle and the first baffle, and the enclosure is engaged in the groove.

[0011] In any of the above embodiments, the preferred embodiment is that the main beam adjustment assembly includes a connecting column and a bidirectional flange, the connecting column is fixedly connected to the center of the outer wall of the first baffle of the hanger, and the connecting column is connected to the end of the supporting main beam through the bidirectional flange.

[0012] In any of the above embodiments, it is preferred that a quick-release component is fixedly connected to the bracket at one end connected to the telescopic component, and the hydraulic jack is disposed inside the quick-release component.

[0013] In any of the above embodiments, the preferred embodiment is that the quick-release component includes a hollow semi-cylindrical guide groove, one end of which is rigidly connected to the mounting bracket, and the telescopic component is detachably connected to the guide groove.

[0014] As described above, the quick-release internal support device for foundation pit support of this utility model has the following beneficial effects: the internal support device of this utility model can be quickly assembled and disassembled, thereby improving construction efficiency; at the same time, the device can be reused, has strong adaptability, and can meet different usage needs; in addition, the device is stable and reliable, which can effectively improve the safety of the device during use. Attached Figure Description

[0015] Figure 1 The diagram shown is a structural schematic of this utility model.

[0016] Component designation explanation

[0017] 1-Telescopic assembly; 2-Guide groove; 3-Main beam adjustment assembly; 31-Connecting column; 32-Two-way flange; 4-Supporting main beam; 5-Hanging seat; 51-First baffle; 52-Second baffle; 53-Third baffle; 54-Slot. Detailed Implementation

[0018] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0019] Please see Figure 1It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0020] Please see Figure 1 This utility model provides a quick-release internal support device for foundation pit support, including a support main beam 4. Both ends of the support main beam 4 are connected to a hanging seat 5 through a disc-type hydraulic jack and a main beam adjustment component 3, respectively. The hanging seat 5 can be detachably hung on the enclosure.

[0021] In this embodiment, the output shaft of the disc-type hydraulic jack is connected to the supporting main beam 4. When using the device, the disc-type hydraulic jack is operated to extend it, thereby causing the supporting main beam 4 to press against the surrounding walls on both sides, providing support force. When the device needs to be moved to another location after use in one place, the force of the disc-type hydraulic jack is released, reducing or eliminating the pressing force between the mounting base 5 and the surrounding walls. The device can then be removed and moved to the desired location for reuse.

[0022] In this embodiment, it is not limited to using a disc-type hydraulic jack as the telescopic component 1 to achieve quick installation and separation. Other structures that can telescopically move the supporting main beam 4 are also acceptable, such as an electric jack.

[0023] In this invention, the supporting main beam 4 is a hollow steel pipe with closed ends, which can reduce the weight of the device and thus facilitate its movement.

[0024] In this embodiment, the main beam adjustment assembly 3 includes a connecting column 31 and a bidirectional flange 32. The connecting column 31 is fixedly connected to the center of the outer wall of the first baffle 51 of the hanger 5. The connecting column 31 and the end of the supporting main beam 4 are fixedly connected by the bidirectional flange 32 and high-strength bolts to ensure the rigidity of the node.

[0025] The connection between the main support beam 4 and the hanger 5 using a two-way flange 32 not only ensures the rigidity of the node, but also facilitates the installation and disassembly of the main support beam 4 and the hanger 5, thereby making it easier to store and move the device.

[0026] Meanwhile, in order to ensure the stability of the connection between the connecting column 31 and the bracket 5, several triangular reinforcing plates are welded between the connecting column 31 and the bracket 5 along the circumference of the connecting column 31.

[0027] In this embodiment, the hanging bracket 5 includes a first baffle 51, the height of which is 2mm greater than the height of the enclosure. Both ends of the first baffle 51 are vertically connected to a second baffle 52, and the ends of the two second baffles 52 are connected to a third baffle 53. The third baffle 53 is parallel to the first baffle 51 and forms a groove 54 between them. The width of the groove 54 is equal to the flange thickness of the enclosure. The enclosure is secured in the groove 54 to ensure that the hanging bracket 5 can be stably hung on the enclosure.

[0028] In this embodiment, a hollow semi-cylindrical guide groove 2 is fixedly connected to the bracket 5 at one end connected to the disc hydraulic jack. One end of the guide groove 2 is rigidly connected to the bracket 5, and the disc hydraulic jack is detachably connected to the guide groove 2.

[0029] In summary, the working process of the quick-release internal bracing device for foundation pit support is as follows:

[0030] During construction, the dimensions of each component are first determined according to specific construction requirements. The structure is divided into left and right parts, with the disc jack serving as the boundary. Both parts are connected to the enclosure via the hanger 5. The disc jack is first installed in the guide groove 2, and then the main beam adjustment assembly 3 is installed to complete the overall assembly. After completion, all connection points are checked to ensure accurate alignment and consistent center lines. The disc jack is used to apply force to ensure the support system is stable and secure. During dismantling, the jacks are used to unload the components, allowing for quick removal.

[0031] In summary, the internal support device of this utility model can be quickly assembled and disassembled, thereby improving construction efficiency; at the same time, the device is reusable, highly adaptable, and can meet different usage needs; furthermore, the device is stable and reliable, effectively improving safety during use. Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0032] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A quick-release internal bracing device for foundation pit support, comprising a supporting main beam (4), characterized in that: The two ends of the supporting main beam (4) are respectively connected to the hangers (5) through the telescopic component (1) and the main beam adjustment component (3), and the hangers (5) can be detachably hung on the enclosure.

2. The quick-release internal bracing device for foundation pit support according to claim 1, characterized in that: The supporting main beam (4) is a hollow steel pipe with closed ends.

3. The quick-release internal bracing device for foundation pit support according to claim 1, characterized in that: The telescopic component (1) is a hydraulic jack, and the output shaft of the hydraulic jack is connected to the end of the supporting main beam (4).

4. The quick-release internal bracing device for foundation pit support according to claim 3, characterized in that: The telescopic component (1) is a disc-type hydraulic jack.

5. The quick-release internal bracing device for foundation pit support according to claim 1, characterized in that: The hanging bracket (5) includes a first baffle (51), and a second baffle (52) is vertically connected to both ends of the first baffle (51). A third baffle (53) is connected to the ends of the two second baffles (52). The third baffle (53) is parallel to the first baffle (51) and forms a slot (54) with the first baffle (51). The girder is fitted into the slot (54).

6. The quick-release internal bracing device for foundation pit support according to claim 5, characterized in that: The main beam adjustment assembly (3) includes a connecting column (31) and a bidirectional flange (32). The connecting column (31) is fixedly connected to the center of the outer wall of the first baffle (51) of the hanger (5). The connecting column (31) is connected to the end of the supporting main beam (4) through the bidirectional flange (32).

7. The quick-release internal bracing device for foundation pit support according to claim 1, characterized in that: A quick-release assembly is fixedly connected to a bracket (5) at one end connected to the telescopic assembly (1), and the telescopic assembly (1) is disposed inside the quick-release assembly.

8. The quick-release internal bracing device for foundation pit support according to claim 7, characterized in that: The quick-release assembly includes a hollow semi-cylindrical guide groove (2), one end of which is rigidly connected to the hanger (5), and the telescopic assembly (1) is detachably connected to the guide groove (2).

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