Supporting device for deep foundation pit support

Abstract

The utility model relates to the technical field of foundation pit support, and disclose a kind of support device for deep foundation pit support, including baffle, connecting plate and support mechanism, the baffle is detachably connected with connecting plate, the support mechanism includes hoisting part, movable part and support rod, the hoisting part is slidably connected with movable part by adjusting mechanism, the number of support rod is two, two support rods are fixedly connected in hoisting part and movable part one side by bolt respectively, the utility model provides a kind of support device for deep foundation pit support, and the cooperation of hoisting part, movable part, support rod and adjusting mechanism is set, support rod is supported on the both sides of hoisting part and movable part to connecting plate, by adjusting adjusting mechanism, the spacing of hoisting part and movable part can be adjusted, so as to make up the inconsistency of relative spacing between adjacent baffles, so that the support rod of different positions can be stably supported on the baffle of both sides.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support technology, specifically to a support device for deep foundation pit support. Background Technology

[0002] Excavation pit support, a key technology in civil engineering construction, is mainly used to maintain the stability of the pit sidewalls, prevent soil collapse, and ensure the safety of underground structure construction as well as the safety of surrounding buildings, pipelines, and roads. With the acceleration of urbanization and the deepening of underground space development, the number of deep excavation pit projects has increased significantly, and their support structures must simultaneously meet the requirements of high stability, strong adaptability, and efficient construction.

[0003] Currently, traditional steel or concrete support systems still dominate deep foundation pit support technology. However, existing technologies have the following prominent problems: First, traditional support systems mostly use independent support unit splicing, and there is a lack of effective linkage mechanism between the units. When uneven deformation occurs on the sidewall of the foundation pit, it is easy to cause local stress concentration, leading to instability of the support structure and posing safety hazards. Second, existing support devices mostly achieve support through fixed-length rods, which is difficult to adapt to construction errors or dynamic deformation differences in the spacing between adjacent baffles. This can easily lead to problems such as insufficient contact between the support rods and the baffles and uneven transmission of support force. Therefore, a device is needed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a support device for deep foundation pit support, which solves the problems of existing support systems being unable to connect with adjacent units and having insufficient contact during support.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a support device for deep foundation pit support, comprising a baffle, a connecting plate and a support mechanism, wherein the baffle and the connecting plate are detachably connected;

[0006] The support mechanism includes a hoisting part, a movable part, and support rods. The hoisting part and the movable part are slidably connected through an adjustment mechanism. There are two support rods, which are respectively fixedly connected to one side of the hoisting part and the movable part by bolts. The other end of the support rod is detachably connected to the connecting plate.

[0007] Both sides of the hoisting unit are slidably connected to extension plates, and one side of each extension plate is bolted to an extension mechanism for connecting adjacent hoisting units.

[0008] Optionally, the adjustment mechanism includes an adjustment knob and an adjustment screw. The adjustment knob is rotatably connected to the inner wall of the movable part, and the adjustment screw is rotatably disposed inside the movable part and threadedly connected to the hoisting part. One side of the adjustment knob meshes with the outer surface of the adjustment screw through a drive gear to drive the adjustment screw to rotate.

[0009] Optionally, an auxiliary rod is fixedly connected to the side of the movable part near the hoisting part, and the auxiliary rod is connected to the internal guide of the hoisting part.

[0010] Optionally, the extension mechanism includes a first connecting rod, a second connecting rod, and an extension rod. The first connecting rod and the second connecting rod, the second connecting rod and the extension rod, and the first connecting rod and the extension rod are all connected by a fixing mechanism. The ends of the first connecting rod and the second connecting rod that are far apart from each other are detachably connected to two lifting parts.

[0011] Optionally, the fixing mechanism includes a slot, a plate, and a sleeve. The slot is located at one end of the first connecting rod, the plate is fixedly connected to one end of the second connecting rod, and the outer surfaces of the slot and the plate are threaded. The sleeve is fitted onto one side of the first connecting rod and is threadedly connected to the plate and the slot.

[0012] Optionally, a connecting block is fixedly connected to one side of the support rod, a positioning groove is provided on one side of the connecting block, and a positioning plate is fixedly connected to one side of the connecting plate, with the positioning plate inserted into the positioning groove.

[0013] Optionally, a positioning pin is inserted into the middle of the positioning plate, and one end of the positioning pin is connected to a limit pin through a rotating shaft to prevent the positioning pin from coming out.

[0014] Optionally, both sides of the baffle and both sides of the connecting plate are provided with connecting buckles for splicing adjacent baffles and connecting plates, and the surface of the connecting plate is provided with a wavy groove.

[0015] This utility model provides a support device for deep foundation pit support, which has the following beneficial effects:

[0016] This utility model provides a support device for deep foundation pit support. Through the coordinated arrangement of baffles and connecting plates, the baffles and connecting plates can be interlocked and alternately arranged to form a unified support structure, improving stability during support. Through the coordinated arrangement of the hoisting section, movable section, support rods, and adjustment mechanism, the support rods support the connecting plates on both sides of the hoisting section and movable section. By adjusting the adjustment mechanism, the distance between the hoisting section and movable section can be adjusted, thereby compensating for inconsistencies in the relative distance between adjacent baffles. This ensures that support rods at different positions can be stably supported on the baffles on both sides, preventing inadequate support. Through the coordinated arrangement of extension plates and extension mechanisms, two adjacent hoisting sections can be connected. Connecting multiple hoisting sections together forms a mesh structure, further improving stability during support. With the sliding extension plates, when there is a slight deviation in the position of the hoisting section, the relative positions of the two extension plates can be adjusted to align them, facilitating the installation of the extension mechanism on the hoisting section. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the unfolded structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the side cross-section of the sleeve of this utility model;

[0020] Figure 4 This is a structural schematic diagram showing the top cross-section of the hoisting part of this utility model;

[0021] Figure 5 This is a side sectional view of the hoisting part of this utility model.

[0022] In the diagram: 1. Baffle; 2. Connecting plate; 3. Lifting part; 4. Movable part; 5. Support rod; 6. Extension plate; 7. Adjusting knob; 8. Adjusting screw; 9. Auxiliary rod; 10. First connecting rod; 11. Second connecting rod; 12. Extension rod; 13. Slot; 14. Insert plate; 15. Sleeve; 16. Connecting block; 17. Positioning groove; 18. Positioning plate; 19. Positioning pin; 20. Limiting pin; 21. Connecting buckle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 5 This utility model provides a technical solution: a support device for deep foundation pit support, including a baffle 1, a connecting plate 2 and a support mechanism, wherein the baffle 1 and the connecting plate 2 are detachably connected.

[0025] The support mechanism includes a hoisting part 3, a movable part 4, and a support rod 5. The hoisting part 3 and the movable part 4 are slidably connected by an adjustment mechanism. There are two support rods 5, which are respectively fixedly connected to one side of the hoisting part 3 and the movable part 4 by bolts. The other end of the support rod 5 is detachably connected to the connecting plate 2.

[0026] Both sides of the hoisting part 3 are slidably connected to the extension plate 6, and one side of the extension plate 6 is connected to the extension mechanism by bolts to connect to the adjacent hoisting part 3.

[0027] The baffle 1 and the connecting plate 2 are spliced ​​together to form an outer frame. The support rod 5 is installed at both ends of the hoisting part 3 and the movable part 4 to support the connecting plates 2 on both sides to prevent the connecting plates 2 on both sides from tilting to the middle. The extension mechanism is connected to the extension plate 6 on the side wall of the hoisting part 3. The extension mechanism can be connected with the adjacent hoisting part 3, so that the two adjacent hoisting parts 3 form a whole and improve the stability during support.

[0028] In this embodiment, as a preferred option, the adjustment mechanism includes an adjustment knob 7 and an adjustment screw 8. The adjustment knob 7 is rotatably connected to the inner wall of the movable part 4, and the adjustment screw 8 is rotatably disposed inside the movable part 4 and threadedly connected to the hoisting part 3. One side of the adjustment knob 7 meshes with the outer surface of the adjustment screw 8 through a drive gear to drive the adjustment screw to rotate 8. An auxiliary rod 9 is fixedly connected to the side of the movable part 4 near the hoisting part 3, and the auxiliary rod 9 is connected to the internal guide of the hoisting part 3.

[0029] During the rotation of the adjustment knob 7, the adjustment knob 7 will drive the gear on one side to rotate. The adjustment knob 7 is connected to the adjustment screw 8 through the gear. During the rotation of the adjustment knob 7, the adjustment screw 8 will also rotate. The adjustment screw 8 is threadedly connected to the lifting part 3. By rotating the adjustment screw 8, the lifting part 3 and the movable part 4 can be pushed apart, thereby increasing the relative distance between the movable part 4 and the lifting part 3, and thus increasing the distance between the support rods 5 on both sides. When there is a deviation in the distance between the connecting plates 2, the relative distance between the movable part 4 and the lifting part 3 can be adjusted so that the support rods 5 at both ends are stably supported together with the connecting plates 2. During the relative movement of the movable part 4 and the lifting part 3, the auxiliary rod 9 will slide inside the lifting part 3, which plays a guiding role and enhances the connection strength between the movable part 4 and the lifting part 3 to prevent deformation of the connection position.

[0030] In this embodiment, as a preferred solution, the extension mechanism includes a first connecting rod 10, a second connecting rod 11, and an extension rod 12. The first connecting rod 10 and the second connecting rod 11, the second connecting rod 11 and the extension rod 12, and the first connecting rod 10 and the extension rod 12 are all connected by a fixing mechanism. The ends of the first connecting rod 10 and the second connecting rod 11 that are far apart are respectively detachably connected to two lifting parts 3. The fixing mechanism includes a slot 13, an insert plate 14, and a sleeve 15. The slot 13 is opened at one end of the first connecting rod 10, and the insert plate 14 is fixedly connected to one end of the second connecting rod 11. The outer circular surfaces of the slot 13 and the insert plate 14 are both provided with threads. The sleeve 15 is sleeved on one side of the first connecting rod 10 and is threadedly connected to the insert plate 13 and the slot 14.

[0031] After inserting the insert plate 14 into the slot 13, rotating the sleeve 15 will thread the sleeve 15 onto the outer surface of the insert plate 14 and the slot 13, thereby fixing the insert plate 14 and the slot 13 together and preventing them from separating. This makes the first connecting rod 10 and the second connecting rod 11 form a whole. When the distance is large, the extension rod 12 can be fixed between the first connecting rod 10 and the second connecting rod 11 to extend the connection length. The first connecting rod 10 and the extension rod 12 are also fixed with the sleeve 15, which is more convenient when fixing. The extension plate 6 can slide along the length direction on the side of the hoisting part 3. After adjusting the distance between the hoisting part 3 and the movable part 4, if the positions of two adjacent hoisting parts 3 deviate, the deviation can be eliminated by sliding the position of the extension plate 6, so that the two extension plates 6 are on the axis, which is convenient for connecting adjacent hoisting parts 3 using the extension mechanism. The extension rod 12 has various sizes, and the appropriate length of the extension rod 12 can be selected according to the relative distance between the two hoisting parts 3.

[0032] In this embodiment, as a preferred solution, a connecting block 16 is fixedly connected to one side of the support rod 5, and a positioning groove 17 is provided on one side of the connecting block 16. A positioning plate 18 is fixedly connected to one side of the connecting plate 2. The positioning plate 18 is inserted into the positioning groove 17. A positioning pin 19 is inserted into the middle of the positioning plate 18. One end of the positioning pin 19 is connected to a limit pin 20 through a rotating shaft to prevent the positioning pin 19 from coming out. Connecting buckles 21 are provided on both sides of the baffle 1 and both sides of the connecting plate 2 to splice adjacent baffle 1 and connecting plate 2. The surface of the connecting plate 2 is provided with a wavy groove.

[0033] After the positioning plate 18 is inserted into the positioning groove 17, the pin hole on the positioning plate 18 is aligned with the pin hole in the positioning groove 17. At this time, the positioning pin 19 can be inserted to fix the connecting block 16 and the positioning plate 18 together. After the positioning pin 19 is inserted into the pin hole, the limiting pin 20 at one end of the positioning pin 19 will rotate along the shaft, so that the positioning pin 19 and the limiting pin 20 form an L-shape, preventing the positioning pin 19 from being pulled out of the pin hole. When it is necessary to pull it out, the positioning pin 19 and the limiting pin 20 need to be adjusted to the same axis before the positioning pin 19 is pulled out. The baffle 1 and the connecting plate 2 are spliced ​​together by the connecting buckle 21 to improve the stability of the connection and prevent gaps from appearing at the connection. The wavy groove can improve the support strength of the baffle 1 and reduce the possibility of deformation.

[0034] In this invention, the working steps of the device are as follows:

[0035] 1. When in use, splice the baffle 1 and the connecting plate 2 together, insert the spliced ​​baffle 1 and the connecting plate 2 into the foundation pit, fix the support rod 5 on both sides of the hoisting part 3 and the movable part 4, and lock the positioning groove 17 at one end of the support rod 5 with the positioning plate 18, and fix it with the positioning pin 19.

[0036] 2. If the spacing of the connecting plates 2 changes, rotate the adjusting knob 7 on the movable part 4 to adjust the relative distance between the movable part 4 and the hoisting part 3 so that the connecting blocks 16 at both ends can be stably fixed together with the connecting plates 2.

[0037] 3. After fixing the position of the hoisting part 3, fix the first connecting rod 10 on the extension plate 6, and adjust the position of the extension plate 6 on the adjacent hoisting part 3 so that the positions of the two extension plates 6 are aligned. Fix the second connecting rod 11 together with the first connecting rod 10 and then fix it together with the second extension plate 6. Then connect the second hoisting part 3 with the third hoisting part 3. Repeat this process to form a mesh support structure.

[0038] The specific embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A support device for deep foundation pit support, characterized in that: It includes a baffle (1), a connecting plate (2) and a support mechanism, wherein the baffle (1) and the connecting plate (2) are detachably connected; The support mechanism includes a hoisting part (3), a movable part (4), and a support rod (5). The hoisting part (3) and the movable part (4) are slidably connected through an adjustment mechanism. There are two support rods (5). The two support rods (5) are respectively fixedly connected to one side of the hoisting part (3) and the movable part (4) by bolts. The other end of the support rod (5) is detachably connected to the connecting plate (2). Both sides of the hoisting part (3) are slidably connected with extension plates (6), and one side of the extension plate (6) is connected by an extension mechanism to connect the adjacent hoisting part (3) via bolts.

2. The support device for deep foundation pit support according to claim 1, characterized in that: The adjustment mechanism includes an adjustment knob (7) and an adjustment screw (8). The adjustment knob (7) is rotatably connected to the inner wall of the movable part (4). The adjustment screw (8) is rotatably disposed inside the movable part (4) and threadedly connected to the hoisting part (3). One side of the adjustment knob (7) meshes with the outer surface of the adjustment screw (8) through a drive gear to drive the adjustment screw to rotate (8).

3. The support device for deep foundation pit support according to claim 2, characterized in that: An auxiliary rod (9) is fixedly connected to the side of the movable part (4) near the hoisting part (3), and the auxiliary rod (9) is connected to the internal guide of the hoisting part (3).

4. A support device for deep foundation pit support according to any one of claims 1-3, characterized in that: The extension mechanism includes a first connecting rod (10), a second connecting rod (11), and an extension rod (12). The first connecting rod (10) and the second connecting rod (11), the second connecting rod (11) and the extension rod (12), and the first connecting rod (10) and the extension rod (12) are all connected by a fixing mechanism. The ends of the first connecting rod (10) and the second connecting rod (11) that are far apart are respectively detachably connected to two hoisting parts (3).

5. A support device for deep foundation pit support according to claim 4, characterized in that: The fixing mechanism includes a slot (13), a plate (14) and a sleeve (15). The slot (13) is opened at one end of the first connecting rod (10). The plate (14) is fixedly connected to one end of the second connecting rod (11). The outer surfaces of the slot (13) and the plate (14) are both threaded. The sleeve (15) is sleeved on one side of the first connecting rod (10) and threadedly connected to the plate (14) and the slot (13).

6. A support device for deep foundation pit support according to any one of claims 1-3, characterized in that: A connecting block (16) is fixedly connected to one side of the support rod (5), and a positioning groove (17) is provided on one side of the connecting block (16). A positioning plate (18) is fixedly connected to one side of the connecting plate (2), and the positioning plate (18) is inserted into the positioning groove (17).

7. A support device for deep foundation pit support according to claim 6, characterized in that: A positioning pin (19) is inserted into the middle of the positioning plate (18). One end of the positioning pin (19) is connected to a limit pin (20) through a rotating shaft to prevent the positioning pin (19) from coming out.

8. A support device for deep foundation pit support according to claim 7, characterized in that: Both sides of the baffle (1) and both sides of the connecting plate (2) are provided with connecting buckles (21) for splicing adjacent baffles (1) and connecting plates (2). The surface of the connecting plate (2) is provided with a wavy groove.

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