Multifunctional assembled trench support device

Abstract

The application relates to a pipe trench excavation technical field and provides a multifunctional assembly type trench supporting device, which comprises at least two groups of telescopic supporting plates arranged oppositely and a supporting assembly supported between the two groups of telescopic supporting plates; each group of telescopic supporting plates comprises a hollow supporting plate, a solid supporting plate and a fixing assembly; one end of the solid supporting plate is inserted into the hollow supporting plate and is inserted and matched with the hollow supporting plate along the length direction; the fixing assembly is connected with the hollow supporting plate and the solid supporting plate; the plate surface of the hollow supporting plate and the solid supporting plate is provided with a vertical positioning channel steel; the supporting assembly comprises a hydraulic steel support and a hinged assembly connected to the two ends of the hydraulic steel support, and the hinged assembly is slid and hingedly fixed along the positioning channel steel. The telescopic supporting plate and the supporting assembly adopt a splicing structure, the dismounting efficiency is improved, the turnover size is small, and the transportation and storage costs are reduced. The device has the characteristics of economy, environmental protection, portability, high efficiency, flexibility and multipurpose use.

Description

Technical Field

[0001] This utility model belongs to the field of trench excavation technology, specifically relating to a multifunctional prefabricated trench support device. Background Technology

[0002] Common support methods used in earthwork excavation include sheet pile support and slope excavation. However, both methods have certain problems. While temporary support using sheet piles provides stable support, it is expensive, requires strict construction techniques and equipment, and makes it difficult to guarantee the quality of each step in the process. Furthermore, sheet piles are easily deformed by environmental factors. In addition, the steel sheets used in sheet piles are mostly disposable, making reuse difficult and resulting in resource waste. Slope excavation, while involving larger excavation volumes and more significant deformation at the pit edges, has a certain capacity to withstand large loads at the slope crest. However, this method requires a large construction site, involves significant excavation and backfill volumes, and results in substantial slope crest deformation, placing certain demands on the construction environment and conditions.

[0003] In summary, existing trench excavation and support methods suffer from problems such as high construction requirements, susceptibility to surrounding conditions, inability to reuse materials, large deformation at the trench edges, and large excavation volumes. Therefore, it is necessary to find more economical, efficient, and reliable support methods to adapt to different construction environments and conditions. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multifunctional prefabricated trench support device, which solves the problems of existing trench excavation support methods, such as high construction requirements, susceptibility to surrounding conditions, large deformation at the pit edge, and inability to reuse materials due to large excavation volumes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional prefabricated trench support device, comprising at least two sets of retractable support plates arranged at relatively intervals and a support assembly supported between the two sets of retractable support plates; each set of retractable support plates includes a hollow support plate, a solid support plate, and a fixing assembly; one end of the solid support plate extends into the hollow support plate and is inserted into the hollow support plate along its length; the fixing assembly connects the hollow support plate and the solid support plate; vertical positioning channel steel is provided on the surface of the hollow support plate and the solid support plate; the positioning channel steels on the hollow support plate and the solid support plate of the two sets of retractable support plates arranged opposite to each other are respectively arranged opposite to each other; the support assembly includes a hydraulic steel support and a hinge assembly connected to both ends of the hydraulic steel support, the hinge assembly sliding along the positioning channel steel and hinged fixed.

[0006] Furthermore, the hinge assembly includes a movable block and a hinge bolt; the movable block is embedded in the positioning channel steel and slides vertically along the positioning channel steel; the positioning channel steel is provided with a plurality of bolt holes spaced vertically, and the hinge bolt passes through the bolt holes on the positioning channel steel and is hinged and fixed to the movable block; the movable block is also connected to the hydraulic steel support.

[0007] Furthermore, the hollow support plate is provided with a plurality of positioning channel steels on its surface, and the plurality of positioning channel steels are spaced apart along the length direction of the hollow support plate.

[0008] Furthermore, the fixing component includes through-plate bolt holes and fixing bolts; the hollow support plate and the solid support plate are respectively provided with multiple through-plate bolt holes along the length direction, and the fixing bolts pass through any two coaxial through-plate bolt holes on the hollow support plate and the solid support plate to connect the hollow support plate and the solid support plate.

[0009] Furthermore, each set of the telescopic support plates is provided with a connecting groove and a connecting protrusion on both sides; the connecting grooves and connecting protrusions of two adjacent sets of telescopic support plates spliced ​​along the length direction of the telescopic support plates are interlocked.

[0010] Furthermore, each set of telescopic support plates is provided with a pin and a hole at its upper and lower ends, respectively; the pins and holes of two adjacent sets of telescopic support plates spliced ​​along the height direction of the telescopic support plates are interlocked.

[0011] Furthermore, the multifunctional prefabricated trench support device also includes a hanging ladder, which is suspended from the telescopic support plate.

[0012] Furthermore, the multifunctional prefabricated trench support device also includes a lifting port, which is located at the upper end of the telescopic support plate.

[0013] The beneficial effects of this utility model are as follows: A set of telescopic support plates is assembled by inserting hollow support plates and solid support plates together and using fixing components. A support component is set between two sets of telescopic support plates, and this support component can move on the positioning channel steel of the telescopic support plates to adjust its position. The support component uses hydraulic steel support, which allows for flexible adjustment of the spacing between the two sets of telescopic support plates to adapt to trenches of different widths. The connecting grooves and connecting protrusions on both sides of the telescopic support plates allow for the splicing of multiple sets of telescopic support plates along their length. The insertion of pins and holes at the upper and lower ends allows for the splicing of multiple sets of telescopic support plates along their height, thus enabling support for trenches of different sizes. Both the telescopic support plates and the support components adopt a splicing structure, allowing for flexible turnover, improving assembly and disassembly efficiency, and reducing transportation and storage costs due to their small turnover size. It features economy, environmental friendliness, portability, high efficiency, and versatility. It significantly reduces the risk of trench collapse and ensures construction safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the multifunctional prefabricated trench support device of this utility model.

[0015] Figure 2 for Figure 1 A schematic diagram of the hydraulic steel support structure.

[0016] Figure 3 for Figure 1 A schematic diagram of the structure of the hinge assembly and the positioning channel steel.

[0017] Figure 4 for Figure 1 A schematic diagram of the structure of the hanging ladder.

[0018] Figure 5 for Figure 1 A structural diagram of the pin, socket, and connecting groove.

[0019] Figure 6 for Figure 1 A schematic diagram of the connecting protrusion.

[0020] In the picture: 11-Hollow support plate; 12-Solid support plate; 13-Through bolt holes; 14-Fixing bolts; 20-Support assembly; 21-Hydraulic steel support; 22-Hinged assembly; 221-Moving block; 222-Hinged bolt; 30-Positioning channel steel; 41-Connecting groove; 42-Connecting convex strip; 51-Pin; 52-Socket; 60-Hanging ladder; 70 - Lifting port. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1-6 The multifunctional prefabricated trench support device shown includes at least two sets of telescopic support plates arranged at relatively intervals and a support assembly 20 supported between the two sets of telescopic support plates; each set of telescopic support plates includes a hollow support plate 11, a solid support plate 12 and a fixing assembly; one end of the solid support plate 12 extends into the hollow support plate 11 and is inserted into the hollow support plate 11 along the length direction; the fixing assembly connects the hollow support plate 11 and the solid support plate 12; vertical positioning channel steel 30 is provided on the surface of the hollow support plate 11 and the solid support plate 12; the positioning channel steel 30 on the hollow support plate 11 and the solid support plate 12 of the two sets of telescopic support plates are respectively arranged opposite to each other; the support assembly 20 includes a hydraulic steel support 21 and a hinge assembly 22 connected to both ends of the hydraulic steel support 21, the hinge assembly 22 sliding and hingedly fixed along the positioning channel steel 30.

[0023] The hinge assembly 22 includes a movable block 221 and a hinge bolt 222. The movable block 221 is embedded in the positioning channel steel 30 and slides vertically along the positioning channel steel 30. The positioning channel steel 30 has multiple horizontal bolt holes spaced vertically. The hinge bolt 222 passes through the bolt holes on the positioning channel steel 30 and is hinged to the movable block 221. The movable block 221 is also hinged to the hydraulic steel support 21. As needed, the movable block 221 can be slid to adjust its position within the positioning channel steel 30. After the movable block 221 slides to the target position, the hinge bolt 222 passes through the bolt holes on the positioning channel steel 30 and fixes the movable block 221 in place. Since the hydraulic steel support 21 is connected to the movable block 221, adjusting the position of the movable block 221 is equivalent to adjusting the position of the hydraulic steel support 21. Figure 2 , Figure 3 As shown, two movable blocks 221 are spaced apart on the positioning channel steel 30, so that two hydraulic steel supports 21 are supported between each pair of oppositely positioned positioning channel steels 30.

[0024] To enhance the structural strength and rigidity of the hollow support plate 11, multiple positioning channel steels 30 are provided on the surface of the hollow support plate 11, with the multiple positioning channel steels 30 spaced apart along the length direction of the hollow support plate 11. In this embodiment, a positioning channel steel 30 is provided near both sides of the surface of the hollow support plate 11, thereby enhancing the rigidity of the hollow support plate 11. Figure 1As shown, hydraulic steel supports 21 are installed on the positioning channel steel 30 on the side away from the solid support plate 12. If it is necessary to further improve the support effect, hydraulic steel supports 21 can be installed on the positioning channel steel 30 on the side closer to the solid support plate 12.

[0025] The fixing components include through bolt holes 13 and fixing bolts 14. The hollow support plate 11 and the solid support plate 12 each have multiple through bolt holes 13 along their length. The fixing bolts 14 pass through any two coaxial through bolt holes 13 on the hollow support plate 11 and the solid support plate 12, connecting them. The through bolt holes 13 can be distributed in multiple rows and columns. The through bolt holes 13 on the hollow support plate 11 and the solid support plate 12 are equidistant. When the hollow support plate 11 and the solid support plate 12 are interlocked, and after a certain distance between them, their through bolt holes 13 become coaxial, the fixing bolts 14 passing through these holes can then fix the hollow support plate 11 and the solid support plate 12.

[0026] like Figure 5 , Figure 6 As shown, each set of telescopic support plates has a connecting groove 41 and a connecting protrusion 42 on both sides; the connecting grooves 41 and connecting protrusions 42 of adjacent sets of telescopic support plates spliced ​​along the length direction of the telescopic support plates are interlocked. Each set of telescopic support plates has a pin 51 and a socket 52 at the upper and lower ends, respectively; the pins 51 and sockets 52 of adjacent sets of telescopic support plates spliced ​​along the height direction of the telescopic support plates are interlocked.

[0027] For example, a connecting groove 41 is provided on one side of the telescopic support plate, and a connecting protrusion 42 is provided on the other side. When two adjacent sets of telescopic support plates are spliced, the connecting protrusion 42 on one set of telescopic support plates is inserted into the connecting groove 41 on the other set of telescopic support plates, thereby splicing the two sets of telescopic support plates along the length direction. This is to adapt to the support of trenches of different lengths.

[0028] For example, the upper end of the telescopic support plate is provided with a hole 52 and the lower end is provided with a pin 51. When two vertically adjacent sets of telescopic support plates are spliced, the pin 51 of the upper telescopic support plate is inserted into the hole 52 of the lower telescopic support plate, so as to realize the splicing of the two sets of telescopic support plates along the height direction to adapt to the support of trenches of different depths.

[0029] like Figure 4As shown, the multi-functional prefabricated trench support device also includes a hanging ladder 60, which is suspended from the telescopic support plate and used for construction personnel to go up and down. The multi-functional prefabricated trench support device also includes a lifting port 70, which is welded to the upper end of the telescopic support plate. The welding port is used to lift the telescopic support plate and the assembled support device.

[0030] This multifunctional prefabricated trench support device significantly reduces the risk of trench collapse and ensures the safety of workers. After successful installation, the ladder 60 serves as a passageway for workers. When repositioning is needed, it can be moved using cranes, excavators, or other equipment via the lifting port 70. Its extendable and height-adjustable design allows the telescopic support plates to be spliced ​​together, resulting in lower support costs compared to Larssen sheet piles. It shortens the construction cycle and reduces processes such as pile driving, support construction, and pile extraction. Furthermore, the device has a smaller overall transport and storage size, saving on storage and transportation costs, and the materials used are reusable.

[0031] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A multifunctional prefabricated trench support device, characterized in that, The system includes at least two sets of retractable support plates spaced apart from each other, and a support assembly supporting the two sets of retractable support plates. Each set of retractable support plates includes a hollow support plate, a solid support plate, and a fixing assembly. One end of the solid support plate extends into the hollow support plate and is inserted into the hollow support plate along its length. The fixing assembly connects the hollow support plate and the solid support plate. Vertical positioning channels are provided on the surfaces of the hollow support plate and the solid support plate. The positioning channels on the hollow support plate and the solid support plate of the two sets of retractable support plates are respectively positioned opposite each other. The support assembly includes a hydraulic steel support and a hinge assembly connected to both ends of the hydraulic steel support. The hinge assembly slides along the positioning channels and is hinged and fixed.

2. The multifunctional prefabricated trench support device according to claim 1, characterized in that, The hinge assembly includes a movable block and a hinge bolt; the movable block is embedded in the positioning channel steel and slides vertically along the positioning channel steel; the positioning channel steel is provided with a plurality of bolt holes at intervals along the vertical direction, and the hinge bolt passes through the bolt holes on the positioning channel steel and is hinged and fixed to the movable block; the movable block is also connected to the hydraulic steel support.

3. The multifunctional prefabricated trench support device according to claim 1, characterized in that, The hollow support plate has multiple positioning channel steels on its surface, and the multiple positioning channel steels are spaced apart along the length direction of the hollow support plate.

4. The multifunctional prefabricated trench support device according to claim 1, characterized in that, The fixing component includes through bolt holes and fixing bolts; the hollow support plate and the solid support plate are respectively provided with multiple through bolt holes along the length direction, and the fixing bolts pass through any two coaxial through bolt holes on the hollow support plate and the solid support plate to connect the hollow support plate and the solid support plate.

5. A multifunctional prefabricated trench support device according to claim 1, characterized in that, Each set of retractable support plates has a connecting groove and a connecting protrusion on both sides; the connecting grooves and connecting protrusions of two adjacent sets of retractable support plates spliced ​​along the length direction of the retractable support plates are interlocked.

6. The multifunctional prefabricated trench support device according to claim 1, characterized in that, Each set of retractable support plates is provided with a pin and a hole at its upper and lower ends, respectively; the pins and holes of two adjacent sets of retractable support plates spliced ​​along the height direction of the retractable support plates are interlocked.

7. A multifunctional prefabricated trench support device according to claim 1, characterized in that, The multifunctional prefabricated trench support device also includes a hanging ladder, which is suspended from the telescopic support plate.

8. A multifunctional prefabricated trench support device according to claim 1, characterized in that, The multifunctional prefabricated trench support device also includes a lifting port, which is located at the upper end of the telescopic support plate.

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